1. The utility model provides a high accuracy is grinding device for axle processing, includes positioning connection board (3), load-bearing bottom plate (6) and polishing base (7) and structure (8) of polishing, its characterized in that: the bearing bottom plate (6) comprises a bottom plate body (601), a spindle box (1) is fixedly mounted on one side of the top end of the bottom plate body (601), a driving spindle (2) is rotatably mounted on the front surface of the spindle box (1), one end, far away from the spindle box (1), of the driving spindle (2) is rotatably connected with a positioning connecting plate (3), the driving spindle (2) penetrates through the positioning connecting plate (3) and extends outwards, a three-jaw chuck (4) is fixedly mounted on the extending end of the driving spindle (2), a high-precision spindle (5) is fixedly mounted on the front surface of the three-jaw chuck (4), a guide connecting groove (603) is formed in the other side of the top end of the bottom plate body (601), a transmission threaded rod (604) is rotatably mounted inside the guide connecting groove (603), one end, far away from the positioning connecting plate (3), of the transmission threaded rod (604) is rotatably connected with a rotating connecting body (605), the bottom groove wall of the guide connecting groove (603) is provided with a chip collecting groove (606), the top end of the bottom plate body (601) is fixedly connected with two sliding guide rails (602), the inside of the guide connecting groove (603) is provided with a polishing base (7), the polishing base (7) comprises a base body (701), the middle part of the bottom end of the base body (701) is fixedly connected with a transmission connecting block (705), the top end of the base body (701) is provided with a sliding connecting groove (702), the bottoms of the groove walls of the front and back sides of the sliding connecting groove (702) are respectively provided with a limiting clamping groove (703), the bottom groove wall of the sliding connecting groove (702) is fixedly connected with a meshing rack (704), one end inside the sliding connecting groove (702) is fixedly provided with a positioning connecting block (706), the inside of the sliding connecting groove (702) is provided with, the bottom end of the polishing connecting body (801) is fixedly connected with a limiting connecting sliding block (807), the top end of the polishing connecting body (801) is provided with a roller mounting groove (802), the top ends of the groove walls on the two sides of the roller mounting groove (802) are rotatably provided with a roller transmission shaft (809), the middle of the outer wall of the roller transmission shaft (809) is fixedly provided with a polishing roller (804), the outer wall of the polishing roller (804) is fixedly connected with a polishing sleeve (805), the outer walls of the roller transmission shafts (809) on the front and back sides of the polishing roller (804) are respectively and fixedly provided with a first limiting plate (816) and a second limiting plate (817), the outer wall of one end of the back side of the roller transmission shaft (809) is fixedly connected with a transmission gear (815), the middle part of the back side of the polishing connecting body (801) is fixedly provided with a driving motor (813), the back side of the driving motor (813) is in transmission connection with a driving gear (814), the driving gear (814) is in transmission connection with the transmission gear (815) through a chain.

2. The grinding device for high-precision shaft machining according to claim 1, characterized in that: the front surface of the transmission connecting block (705) is provided with a transmission threaded through hole, the transmission threaded rod (604) is arranged in the transmission threaded through hole in a threaded mode, and the transmission connecting block (705) is arranged in the guide connecting groove (603) in a sliding mode.

3. The grinding device for high-precision shaft machining according to claim 1, characterized in that: the rotary connecting body (605) is fixedly installed inside the guide connecting groove (603), the transmission threaded rod (604) penetrates through the rotary connecting body (605) and extends outwards, and the extending end of the transmission threaded rod (604) is fixedly connected with a control rocking handle.

4. The grinding device for high-precision shaft machining according to claim 1, characterized in that: two guide rail sliding grooves are formed in the bottom end of the base body (701), the two sliding guide rails (602) are respectively installed inside the two guide rail sliding grooves in a sliding mode, and the limiting connecting sliding block (807) is installed inside the sliding connecting groove (702) in a sliding mode.

5. The grinding device for high-precision shaft machining according to claim 1, characterized in that: transmission mounting groove (808) have been seted up to spacing link block (807) one side, the inside top of transmission mounting groove (808) is provided with driving gear (810), driving gear (810) openly fixedly connected with control connecting axle (806), driving gear (810) bottom meshing is connected with driven gear (812), fixedly connected with driven connecting axle (811) in the middle of driven gear (812) openly.

6. The grinding device for high-precision shaft machining according to claim 5, wherein: the front end of the control connecting shaft (806) penetrates through the polishing connecting body (801) and extends outwards, the extending end of the control connecting shaft (806) is fixedly connected with a control disc, the control connecting shaft (806) penetrates through the driving gear (810) and extends outwards, and the control connecting shaft (806) is rotatably connected with the polishing connecting body (801).

7. The grinding device for high-precision shaft machining according to claim 5, wherein: driven connecting axle (811) run through driven gear (812) and outwards extend, driven connecting axle (811) rotate to be installed inside transmission mounting groove (808), driven gear (812) bottom and meshing rack (704) intermeshing.

8. The grinding device for high-precision shaft machining according to claim 1, characterized in that: four fixture block fixing threaded holes (803) are formed in the top end of the polishing connecting body (801), rotary mounting fixture blocks (818) are arranged on the top ends of the front side and the back side of the polishing connecting body (801), and the rotary mounting fixture blocks (818) are fixedly connected with the polishing connecting body (801) through the fixture block fixing threaded holes (803) and bolts.

9. The grinding device for high-precision shaft machining according to claim 8, characterized in that: the outer walls of the two ends of the roller transmission shaft (809) are fixedly connected with bearings, the roller transmission shaft (809) is rotatably installed in the roller installation groove (802) through the bearings, and the roller transmission shaft (809) is rotatably connected with the rotary installation clamping block (818) through the bearings.

10. The grinding process of the grinding device for high precision shaft machining according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:

firstly, a transmission threaded rod (604) is rotated by rotating a rocking handle, the transmission threaded rod (604) drives a transmission connecting block (705) to move towards a positioning connecting plate (3), and the transmission connecting block (705) drives a base body (701) to move;

then, the disc is rotated to drive the control connecting shaft (806) to rotate clockwise, the control connecting shaft (806) drives the driving gear (810) to rotate clockwise, the driving gear (810) is meshed with the driving driven gear (812), the driven gear (812) rotates anticlockwise, the driven gear (812) is meshed with the meshing rack (704) for transmission, the polishing connecting body (801) is driven to move towards the high-precision spindle (5), and a certain gap is formed between the polishing sleeve (805) and the high-precision spindle (5);

starting a driving motor (813), wherein the driving motor (813) drives a driving gear (814) to rotate anticlockwise, the driving gear (814) drives a transmission gear (815) to rotate anticlockwise through a chain, the transmission gear (815) drives a control connecting shaft (806) to rotate anticlockwise, and the control connecting shaft (806) drives a polishing sleeve (805) to rotate anticlockwise through a polishing roller (804);

then, the rotating disc is rotated clockwise, so that the polishing sleeve (805) is in contact with the high-precision spindle (5), and the outer wall of the high-precision spindle (5) is polished;

the first grinding is semi-finish grinding, and the rotating speed of the output main shaft of the main shaft box (1) is three hundred revolutions per minute; the second grinding is finish machining grinding, and the output rotation of the spindle box (1) is eight hundred revolutions per minute; the output rotating speed of the driving motor (813) is constant and is five hundred revolutions per minute.

Background

Gear shaft refers to a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Typically in the form of a metal rod, each section may have a different diameter. The parts of the machine that rotate are mounted on the shaft.

The use requirement of the gear shaft is very high, and for example, the gear shaft can be used in devices such as a speed reducer, a gearbox and the like, and the requirement on the precision of the gear shaft is very high. After the gear shaft is basically machined and molded, in order to improve the precision and the surface smoothness of the gear shaft, the surface with high precision requirement of the gear shaft is polished, and the polishing precision of the gear shaft is ensured. But current gear shaft grinding device is carrying out the work of polishing, and the gear shaft that mostly adopts rotates, and the subassembly of polishing is linear motion, and the speed of polishing is slow, and causes the damage of the subassembly of polishing easily, reduces the life of the subassembly of polishing.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a polishing apparatus for high-precision shaft machining and a polishing process thereof.

The invention realizes the aim by the following technical scheme, the polishing device for high-precision shaft processing comprises a positioning connecting plate, a bearing bottom plate, a polishing base and a polishing structure, wherein the bearing bottom plate comprises a bottom plate body, a spindle box is fixedly arranged on one side of the top end of the bottom plate body, a driving spindle is rotatably arranged on the front surface of the spindle box, one end of the driving spindle, far away from the spindle box, is rotatably connected with the positioning connecting plate, the driving spindle penetrates through the positioning connecting plate and extends outwards, a three-jaw chuck is fixedly arranged at the extending end of the driving spindle, a high-precision spindle is fixedly arranged on the front surface of the three-jaw chuck, a guide connecting groove is formed in the other side of the top end of the bottom plate body, a transmission threaded rod is rotatably arranged in the guide connecting groove, one end, far away from the positioning connecting plate, of the transmission threaded rod is rotatably connected with a rotating connecting body, and a chip collecting groove is formed in the bottom end of the guide connecting groove, the polishing machine comprises a base plate body, a guide connecting groove, a polishing base, a positioning connecting block, a polishing structure, a polishing connecting body, a roller mounting groove, a roller transmission shaft, a polishing roller and a polishing roller, wherein two sliding guide rails are fixedly connected to the top end of the base plate body, the polishing base is slidably mounted in the guide connecting groove and comprises a base body, a transmission connecting block is fixedly connected to the middle of the bottom end of the base body, a sliding connecting groove is formed in the top end of the base body, limiting clamping grooves are formed in the bottoms of the front and back groove walls of the sliding connecting groove, a meshing rack is fixedly connected to the bottom groove wall of the sliding connecting groove, a positioning connecting block is fixedly mounted at one end in the sliding connecting groove, the polishing structure comprises a polishing connecting body, a limiting connecting slider is fixedly connected to the bottom end of the polishing connecting body, a roller mounting groove is formed in the top end of the polishing connecting body, the roller transmission shaft is rotatably mounted at the top ends of the two side groove walls of the roller mounting groove, the polishing roller transmission shaft is fixedly mounted in the middle of the outer wall of the roller transmission shaft, the polishing device comprises a polishing roller and is characterized in that the outer wall of the polishing roller is fixedly connected with a polishing sleeve, the outer walls of roller transmission shafts on the front side and the back side of the polishing roller are respectively and fixedly provided with a first limiting plate and a second limiting plate, one end of the outer wall of the back side of the roller transmission shafts is fixedly connected with a transmission gear, the middle of the back side of a polishing connector is fixedly provided with a driving motor, the back side of the driving motor is in transmission connection with a driving gear, and the driving gear is in transmission connection with the transmission gear through a chain.

Preferably, the transmission threaded through hole is openly seted up to the transmission connecting block, transmission threaded rod threaded mounting is inside the transmission threaded through hole, transmission connecting block slidable mounting is inside the direction spread groove.

Preferably, the rotating connecting body is fixedly installed inside the guide connecting groove, the transmission threaded rod penetrates through the rotating connecting body and extends outwards, and the extending end of the transmission threaded rod is fixedly connected with the control rocking handle.

Preferably, two guide rail sliding grooves are formed in the bottom end of the base body, the two guide rails are respectively slidably mounted inside the two guide rail sliding grooves, and the limiting connection sliding block is slidably mounted inside the sliding connection groove.

Preferably, a transmission mounting groove is formed in one side of the limiting connection sliding block, a driving gear is arranged at the top end inside the transmission mounting groove, a control connecting shaft is fixedly connected to the front side of the driving gear, a driven gear is connected to the bottom end of the driving gear in a meshed mode, and a driven connecting shaft is fixedly connected to the front middle of the driven gear.

Preferably, the positive one end of control connecting axle runs through the connector of polishing and outwards extends, the extension end fixedly connected with control disc of control connecting axle, the control connecting axle runs through the driving gear and outwards extends, the control connecting axle rotates with the connector of polishing and is connected.

Preferably, the driven connecting shaft penetrates through the driven gear and extends outwards, the driven connecting shaft is rotatably installed inside the transmission installation groove, and the bottom end of the driven gear is meshed with the meshing rack.

Preferably, four fixture block fixing threaded holes are formed in the top end of the polishing connecting body, the rotary mounting fixture blocks are arranged on the top ends of the front surface and the back surface of the polishing connecting body, and the rotary mounting fixture blocks are fixedly connected with the polishing connecting body through the fixture block fixing threaded holes and bolts.

Preferably, the outer walls of the two ends of the roller transmission shaft are fixedly connected with bearings, the roller transmission shaft is rotatably installed inside the roller installation groove through the bearings, and the roller transmission shaft is rotatably connected with the rotary installation clamping block through the bearings.

Preferably, the grinding process of the grinding device for machining the high-precision shaft comprises the following steps:

firstly, a transmission threaded rod is rotated by rotating a rocking handle, the transmission threaded rod drives a transmission connecting block to move towards a positioning connecting plate, and the transmission connecting block drives a base body to move;

then, the disc is rotated to drive the control connecting shaft to rotate clockwise, the control connecting shaft drives the driving gear to rotate clockwise, the driving gear is meshed with the driving driven gear, the driven gear rotates anticlockwise, the driven gear is meshed with the meshing rack for transmission, the polishing connecting body is driven to move towards the high-precision spindle, and a certain gap is formed between the polishing sleeve and the high-precision spindle;

starting a driving motor, driving the driving gear to rotate anticlockwise by the driving motor, driving the transmission gear to rotate anticlockwise by the driving gear through a chain, driving the control connecting shaft to rotate anticlockwise by the transmission gear, and driving the polishing sleeve to rotate anticlockwise by the control connecting shaft through the polishing roller;

then, rotating the rotating disc clockwise to enable the polishing sleeve to be in contact with the high-precision spindle, and polishing the outer wall of the high-precision spindle;

the first polishing is semi-finish polishing, and the rotating speed of a main shaft output by a main shaft box is three hundred revolutions per minute; the second grinding is finish machining grinding, and the output rotation of the spindle box is eight hundred revolutions per minute; the output speed of the driving motor is constant and is five hundred revolutions per minute.

The invention has the beneficial effects that:

firstly, the polishing sleeve is contacted with the high-precision spindle clockwise by rotating the rotating disc, the outer wall of the high-precision spindle is polished, the first polishing is semi-finish polishing, and the rotating speed of the spindle output by the spindle box is three hundred revolutions per minute; the second grinding is finish machining grinding, and the output rotation of the spindle box is eight hundred revolutions per minute; the output rotating speed of the driving motor is constant, the driving motor is five hundred revolutions per minute, the high-precision spindle is conveniently polished, polishing is carried out in a grading mode, the polishing precision is higher, the high-precision spindle and the polishing sleeve are rotated reversely, the polishing efficiency and the polishing precision are improved, single-side polishing is avoided, and the service life of the polishing sleeve is shortened.

The driving motor is utilized to drive the driving gear to rotate anticlockwise, the driving gear drives the transmission gear to rotate anticlockwise through the chain, the transmission gear drives the control connecting shaft to rotate anticlockwise, and the control connecting shaft drives the polishing sleeve to rotate anticlockwise through the polishing roller, so that the polishing assembly is more conveniently controlled, and the polishing efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the polishing base according to the present invention;

FIG. 3 is a schematic view of a load floor structure according to the present invention;

FIG. 4 is a schematic view of an assembly structure of a polishing base and a polishing device according to the present invention;

FIG. 5 is a schematic view of the overall structure of the polishing device of the present invention;

FIG. 6 is a schematic cross-sectional view of the polishing apparatus of the present invention;

fig. 7 is a schematic view of the structure of the sharpening roller of the invention.

In the figure: 1. a main spindle box; 2. driving the main shaft; 3. positioning the connecting plate; 4. a three-jaw chuck; 5. a high-precision main shaft; 6. a load floor; 7. polishing the base; 8. polishing the structure; 601. a bottom plate body; 602. a sliding guide rail; 603. a guide connecting groove; 604. a transmission threaded rod; 605. rotating the connector; 606. a chip collecting groove; 701. a base body; 702. a sliding connecting groove; 703. a limiting clamping groove; 704. meshing the racks; 705. a transmission connecting block; 706. positioning a connecting block; 801. polishing the connecting body; 802. a roller mounting groove; 803. the fixture block fixes the threaded hole; 804. polishing the roller; 805. polishing the sleeve; 806. controlling the connecting shaft; 807. the limiting connection sliding block; 808. a transmission mounting groove; 809. a roller transmission shaft; 810. a driving gear; 811. a driven connecting shaft; 812. a driven gear; 813. a drive motor; 814. a drive gear; 815. a transmission gear; 816. a first limit plate; 817. a second limiting plate; 818. and a clamping block is rotatably installed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a polishing device for high precision shaft processing and a polishing process thereof, comprising a positioning connection plate 3, a bearing bottom plate 6, a polishing base 7 and a polishing structure 8, wherein the bearing bottom plate 6 comprises a bottom plate body 601, a spindle box 1 is fixedly installed on one side of the top end of the bottom plate body 601, the spindle box 1 is set to output high rotation speed and low rotation speed, the high rotation speed is eight hundred revolutions per minute, the low rotation speed is three hundred revolutions per minute, a driving spindle 2 is rotatably installed on the front surface of the spindle box 1, one end of the driving spindle 2 far away from the spindle box 1 is rotatably connected with the positioning connection plate 3, the driving spindle 2 penetrates through the positioning connection plate 3 and extends outwards, a three-jaw chuck 4 is fixedly installed on the extending end of the driving spindle 2, a high precision spindle 5 is fixedly installed on the front surface of the three-jaw chuck 4, a guide connection groove 603 is formed on the other side of the top end of the bottom plate body 601, a transmission threaded rod 604 is rotatably installed inside the guide connection groove 603, one end of the transmission threaded rod 604 far away from the positioning connecting plate 3 is rotatably connected with a rotating connecting body 605, a scrap collecting groove 606 is formed in the bottom groove wall of the guide connecting groove 603, two sliding guide rails 602 are fixedly connected to the top end of the bottom plate body 601, a polishing base 7 is slidably mounted inside the guide connecting groove 603, the polishing base 7 comprises a base body 701, a transmission connecting block 705 is fixedly connected to the middle part of the bottom end of the base body 701, a sliding connecting groove 702 is formed in the top end of the base body 701, limiting clamping grooves 703 are formed in the bottoms of the groove walls of the front and back sides of the sliding connecting groove 702, a meshing rack 704 is fixedly connected to the bottom groove wall of the sliding connecting groove 702, a positioning connecting block 706 is fixedly mounted at one end inside the sliding connecting groove 702, a polishing structure 8 is slidably mounted inside the sliding connecting groove 702, the polishing structure 8 comprises a polishing connecting body 801, and a limiting connecting sliding block 807 is fixedly connected to the bottom end of the polishing connecting body 801, the top end of the polishing connecting body 801 is provided with a roller mounting groove 802, the top ends of the two side groove walls of the roller mounting groove 802 are rotatably provided with a roller transmission shaft 809, the middle of the outer wall of the roller transmission shaft 809 is fixedly provided with the polishing roller 804, the outer wall of the polishing roller 804 is fixedly provided with a polishing sleeve 805, the outer walls of the roller transmission shafts 809 on the front side and the back side of the polishing roller 804 are respectively fixedly provided with a first limiting plate 816 and a second limiting plate 817, one end outer wall of the back side of the roller transmission shaft 809 is fixedly connected with a transmission gear 815, the middle of the back side of the polishing connecting body 801 is fixedly provided with a driving motor 813, the back side of the driving motor 813 is connected with a driving gear 814, and the driving gear 814 is in transmission connection with the transmission gear 815 through a chain.

As a technical optimization scheme of the invention, a transmission threaded through hole is formed in the front surface of the transmission connecting block 705, a transmission threaded rod 604 is installed in the transmission threaded through hole in a threaded manner, and the transmission connecting block 705 is installed in the guide connecting groove 603 in a sliding manner. The rotary connecting body 605 is fixedly installed inside the guide connecting groove 603, the transmission threaded rod 604 penetrates through the rotary connecting body 605 and extends outwards, and the extending end of the transmission threaded rod 604 is fixedly connected with a control rocking handle.

As a technical optimization scheme of the present invention, two guide rail sliding grooves are formed at the bottom end of the base body 701, the two sliding guide rails 602 are respectively slidably mounted inside the two guide rail sliding grooves, and the limit connecting sliding block 807 is slidably mounted inside the sliding connecting groove 702. A transmission mounting groove 808 is formed in one side of the limiting connecting sliding block 807, a driving gear 810 is arranged at the top end inside the transmission mounting groove 808, a control connecting shaft 806 is fixedly connected to the front face of the driving gear 810, a driven gear 812 is connected to the bottom end of the driving gear 810 in a meshed mode, and a driven connecting shaft 811 is fixedly connected to the middle of the front face of the driven gear 812.

As a technical optimization scheme of the present invention, one end of the front surface of the control connecting shaft 806 penetrates through the polishing connecting body 801 and extends outward, the extending end of the control connecting shaft 806 is fixedly connected with a control disc, the control connecting shaft 806 penetrates through the driving gear 810 and extends outward, and the control connecting shaft 806 is rotatably connected with the polishing connecting body 801. The driven connecting shaft 811 penetrates through the driven gear 812 and extends outwards, the driven connecting shaft 811 is rotatably installed inside the transmission installation groove 808, and the bottom end of the driven gear 812 is meshed with the meshing rack 704.

As a technical optimization scheme of the invention, four fixture block fixing threaded holes 803 are formed in the top end of a polishing connecting body 801, rotary mounting fixture blocks 818 are arranged on the top ends of the front side and the back side of the polishing connecting body 801, and the rotary mounting fixture blocks 818 are fixedly connected with the polishing connecting body 801 through the fixture block fixing threaded holes 803 and bolts. The outer wall of the two ends of the roller transmission shaft 809 is fixedly connected with bearings, the roller transmission shaft 809 is rotatably installed inside the roller installation groove 802 through the bearings, the roller transmission shaft 809 is rotatably connected with the rotary installation fixture block 818 through the bearings, the polishing sleeve 805 is set to be semi-finish machining and finish machining, and the polishing sleeve 805 is replaced according to polishing steps.

As a technical optimization scheme of the invention, the polishing process of the polishing device for high-precision shaft machining comprises the following steps of:

firstly, a transmission threaded rod 604 is rotated by rotating a rocking handle, the transmission threaded rod 604 drives a transmission connecting block 705 to move towards a positioning connecting plate 3, and the transmission connecting block 705 drives a base body 701 to move;

then, the disc is rotated to drive the control connecting shaft 806 to rotate clockwise, the control connecting shaft 806 drives the driving gear 810 to rotate clockwise, the driving gear 810 is meshed with the driving driven gear 812, the driven gear 812 rotates anticlockwise, the driven gear 812 is meshed with the meshing rack 704 for transmission, the polishing connecting body 801 is driven to move towards the high-precision spindle 5, and a certain gap is formed between the polishing sleeve 805 and the high-precision spindle 5;

the driving motor 813 is started, the driving motor 813 drives the driving gear 814 to rotate anticlockwise, the driving gear 814 drives the transmission gear 815 to rotate anticlockwise through a chain, the transmission gear 815 drives the control connecting shaft 806 to rotate anticlockwise, and the control connecting shaft 806 drives the polishing sleeve 805 to rotate anticlockwise through the polishing roller 804;

then, the rotating disc is rotated clockwise, so that the polishing sleeve 805 is in contact with the high-precision spindle 5, and the outer wall of the high-precision spindle 5 is polished;

the first grinding is semi-finish grinding, and the rotating speed of the output main shaft of the main shaft box 1 is three hundred revolutions per minute; the second grinding is finish machining grinding, and the output rotation of the spindle box 1 is eight hundred revolutions per minute; the output speed of the driving motor 813 is constant and is five hundred revolutions per minute.

When the invention is used;

please refer to fig. 1 to 7;

assembling the device as shown in fig. 1, fixedly installing a high-precision spindle 5 inside a three-jaw chuck 4, starting the spindle box 1, driving the spindle box 1 to drive a driving spindle 2 to rotate, driving the spindle 2 to drive the three-jaw chuck 4 to rotate, and driving the high-precision spindle 5 to rotate clockwise by the three-jaw chuck 4;

carrying out operation one;

firstly, a transmission threaded rod 604 is rotated by rotating a rocking handle, the transmission threaded rod 604 drives a transmission connecting block 705 to move towards a positioning connecting plate 3, and the transmission connecting block 705 drives a base body 701 to move;

carrying out operation two;

then, the disc is rotated to drive the control connecting shaft 806 to rotate clockwise, the control connecting shaft 806 drives the driving gear 810 to rotate clockwise, the driving gear 810 is meshed with the driving driven gear 812, the driven gear 812 rotates anticlockwise, the driven gear 812 is meshed with the meshing rack 704 for transmission, the polishing connecting body 801 is driven to move towards the high-precision spindle 5, and a certain gap is formed between the polishing sleeve 805 and the high-precision spindle 5;

carrying out operation three;

the driving motor 813 is started, the driving motor 813 drives the driving gear 814 to rotate anticlockwise, the driving gear 814 drives the transmission gear 815 to rotate anticlockwise through a chain, the transmission gear 815 drives the control connecting shaft 806 to rotate anticlockwise, and the control connecting shaft 806 drives the polishing sleeve 805 to rotate anticlockwise through the polishing roller 804;

carrying out operation four;

then, the rotating disc is rotated clockwise, so that the polishing sleeve 805 is in contact with the high-precision spindle 5, and the outer wall of the high-precision spindle 5 is polished;

the first grinding is semi-finish grinding, and the rotating speed of the output main shaft of the main shaft box 1 is three hundred revolutions per minute; the second grinding is finish machining grinding, and the output rotation of the spindle box 1 is eight hundred revolutions per minute; the output speed of the driving motor 813 is constant and is five hundred revolutions per minute.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.