1. The utility model provides a length adjustable bores reaming ream integration cutter which characterized in that: the cutting tool comprises a base (1), a flexible hinge (2) and an integrated cutting tool (3); the integrated cutter (3) comprises a drilling body (3-1), a reaming body (3-2) and a reaming body (3-3), the drilling body (3-1), the reaming body (3-2) and the reaming body (3-3) are sequentially inserted from inside to outside, the flexible hinge (2) is fixedly installed on the base (1), and the integrated cutter (3) is arranged on the base (1).

2. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: the flexible hinge (2) comprises piezoelectric ceramics (2-1), two length adjusting rods (2-3) and a plurality of hinge fixing screws (2-2); the two length adjusting rods (2-3) are arranged in the piezoelectric ceramics (2-1) in parallel, and the piezoelectric ceramics (2-1) are arranged on the base (1) through a plurality of hinge fixing screws (2-2).

3. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: the base (1) comprises a connecting seat, a connecting screw (1-1), a positioning plate (1-2), a positioning groove (1-3) and a cutter bracket (1-4); the flexible hinge (2) is installed on the connecting seat through a connecting screw (1-1), and the positioning plate (1-2), the positioning groove (1-3) and the cutter support (1-4) are sequentially installed on the connecting seat along the linear direction close to the flexible hinge (2).

4. The length-adjustable drilling and reaming integrated tool is characterized in that: the positioning plate (1-2), the positioning groove (1-3) and the cutter support (1-4) are arranged close to the two length adjusting rods (2-3), the integrated cutter (3) is arranged on the positioning groove (1-3) and the cutter support (1-4), and the end part of the integrated cutter (3) is propped against the positioning plate (1-2).

5. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: one end of the drilling body (3-1) is provided with a drilling blade (3-1-1), one end of the reaming body (3-2) is provided with a reaming blade (3-2-1), and one end of the reaming body (3-3) is provided with a spot facing blade (3-3-1).

6. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: the rake angle of the cutting edge of the drilling edge (3-1-1) is 2 degrees, the vertex angle of the drilling edge (3-1-1) is 150 degrees, the drilling edge (3-1-1) is a double relief angle, the first relief angle is 12 degrees, and the second relief angle is 25 degrees.

7. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: the outer side wall of the drilling body (3-1) is provided with two flat parts, the two flat parts are symmetrically arranged close to the other end of the drilling body (3-1), the reaming body (3-2) is a circular sleeve body, the outer side wall of the circular sleeve body is provided with a strip-shaped bulge along the length direction, the counter boring body (3-3) is a cylinder with a blind hole machined in the center, the inner side wall of the blind hole is provided with a strip-shaped groove corresponding to the strip-shaped bulge on the circular sleeve body, the reaming body (3-2) is arranged in the reaming body (3-3) in a sliding mode, the strip-shaped groove of the counter boring body (3-3) is matched with the strip-shaped bulge of the reaming body (3-2), and the drilling body (3-1) is arranged on the reaming body (3-2) in a sliding mode.

8. The length-adjustable drilling and reaming integrated tool is characterized in that: the counter boring body (3-3) is provided with length adjusting grooves (3-4) in the axial direction, the length adjusting grooves (3-4) are communicated with the blind hole, two fastening screws (3-5) and the length adjusting grooves (3-4) are oppositely arranged and are in threaded connection with the outer side wall of the blind hole, the end part of one fastening screw (3-5) is propped against the flat part of the boring body (3-1), the other fastening screw (3-5) is propped against the outer side wall of the reaming body (3-2), the end part of one length adjusting rod (2-3) is propped against the other flat part of the boring body (3-1), and the end part of the other length adjusting rod (2-3) is propped against the outer side wall of the reaming body (3-2).

9. The length-adjustable drilling and reaming integrated tool is characterized in that: the drilling body (3-1) is made of hard alloy materials, the reaming body (3-2) is made of hard alloy materials, the counter boring body (3-3) is made of hard alloy materials, the drilling blade (3-1-1) is a cutter made of polycrystalline diamond materials, the reaming blade (3-2-1) is a cutter made of polycrystalline diamond materials, and the counter boring blade (3-3-1) is a cutter made of polycrystalline diamond materials.

10. The length-adjustable drilling, reaming and reaming integrated tool is characterized in that: the positioning groove (1-3) is a vertical plate with a V-shaped opening at the top, the top of the cutter support (1-4) is provided with a support body with an arc-shaped groove, and the counter boring body (3-3) is arranged on the V-shaped opening of the positioning groove (1-3) and the arc-shaped groove of the cutter support (1-4).

Background

The continuous development of the scientific technology at present puts higher requirements on the performance of the material, and particularly in some more advanced fields, the single material is difficult to meet the requirements of practical application, so that the rapid development of the composite material is promoted. Ceramic Matrix Composites (CMC) are composites of a ceramic matrix and carbon fiber reinforcement, and have the characteristics of high strength, high modulus, low density, corrosion resistance, good toughness, and the like. In the drilling process of the ceramic matrix composite, the carbon fiber with high wear resistance can frequently scratch the surface of the cutter, and the traditional hard alloy cutter can have serious cutter abrasion. Meanwhile, the traditional drilling, reaming and reaming process usually comprises two to three processes, the coaxiality of holes is not easy to guarantee by the multi-process of drilling, reaming and reaming, the time wasted by tool changing is more, and the working efficiency is reduced. At present, the existing fixed-length drilling, reaming and reaming integrated cutter can only process blind holes with through holes or specific depths, if the blind holes needing to be processed are more and the depths of the blind holes are different, the drilling, reaming and reaming integrated cutter with different lengths must be customized, and the processing cost is greatly increased. The length adjustable part of the present adjustable length drilling, reaming and reaming integrated cutter is mostly interference fit, the length of the cutter which can not be accurately controlled and adjusted is limited, and the actual processing precision is seriously influenced.

Disclosure of Invention

The invention aims to solve the problems that the length adjustable part of the existing length-adjustable drilling, reaming and reaming integrated cutter is in interference fit, the length of the cutter cannot be accurately controlled and adjusted, and the actual machining precision is seriously influenced, and further provides the length-adjustable drilling, reaming and reaming integrated cutter.

The technical problem is solved by the following scheme:

the cutting tool comprises a base, a flexible hinge and an integrated cutting tool; the integrated cutter comprises a drilling body, a reaming body and a reaming body, the drilling body, the reaming body and the reaming body are sequentially inserted from inside to outside, the flexible hinge is fixedly installed on the base, and the integrated cutter is arranged on the base.

Compared with the prior art, the invention has the following beneficial effects:

the drilling, reaming and reaming integrated hole making machine can complete drilling, reaming and reaming integrated hole making in one process, realizes the work of processing the drilling, reaming and reaming integrated hole making only by needing a complex processing technology in a conventional mode through the processing of the drilling, reaming and reaming integrated cutter, and saves the processing time. Unnecessary tool changing process is reduced, and machining efficiency and machining cost are greatly improved. Simultaneously, the cutter can realize the accurate adjustment of two-stage lengths of a cutter drilling part and a spot facing part, the processing of blind holes with different depths is met, the lengths of the drilling body 3-1, the reaming body 3-2 and the spot facing body 3-3 are accurately adjusted through the flexible hinge 2 mechanism, the accurate processing is carried out aiming at the blind holes with different depths, the drilling, reaming and spot facing integrated hole making processing of blind holes with different depths is realized, the problem of inaccurate adjustment of the length of the existing length-adjustable cutter is solved, the operation is inconvenient, the processing cost is saved, and the processing precision is improved.

The drilling, reaming and reaming integrated cutter is suitable for processing ceramic matrix composite materials, can realize the high-precision processing of drilling, reaming and reaming integration aiming at blind holes of different depths, greatly facilitates the operation of workers, effectively reduces the axial force of hole making, reduces the abrasion of the cutter, prolongs the service life of the cutter, guarantees the processing precision, promotes the processing efficiency and reduces the processing cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a schematic view of the connection of the base 1 and the flexible hinge 2.

Fig. 3 is a schematic view of the integrated cutter 3.

Fig. 4 is a schematic view of the integrated tool 3 mounting two fastening screws 3-5.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and reaming integrated cutter comprises a base 1, a flexible hinge 2 and an integrated cutter 3; the integrated cutter 3 comprises a drilling body 3-1, a reaming body 3-2 and a spot facing body 3-3, wherein the drilling body 3-1, the reaming body 3-2 and the spot facing body 3-3 are sequentially inserted from inside to outside, the flexible hinge 2 is fixedly arranged on the base 1, and the integrated cutter 3 is arranged on the base 1.

The second embodiment is as follows: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and reaming integrated cutter of the embodiment comprises a flexible hinge 2, a plurality of hinge fixing screws 2, a plurality of length adjusting rods 2, and a plurality of length adjusting rods 2, 2; the two length adjusting rods 2-3 are arranged in the piezoelectric ceramics 2-1 in parallel, and the piezoelectric ceramics 2-1 is arranged on the base 1 through a plurality of hinge fixing screws 2-2. Other components and connection modes are the same as those of the first embodiment. The piezoelectric ceramic 2-1 is connected with a power amplifier by a signal generator to supply power to the power amplifier, so that the driving voltage and the driving frequency can be accurately adjusted to output displacement, and the length of the cutter can be accurately controlled.

The third concrete implementation mode: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and reaming integrated cutter of the embodiment comprises a base 1, a connecting seat, a connecting screw 1-1, a positioning plate 1-2, a positioning groove 1-3 and a cutter support 1-4; the flexible hinge 2 is installed on the connecting seat through a connecting screw 1-1, and the positioning plate 1-2, the positioning groove 1-3 and the cutter support 1-4 are sequentially installed on the connecting seat along the linear direction close to the flexible hinge 2. Other components and connection modes are the same as those of the first embodiment.

The fourth concrete implementation mode: the embodiment is described with reference to fig. 1-4, and according to the length-adjustable drilling and reaming and spot facing integrated cutter of the embodiment, a positioning plate 1-2, a positioning groove 1-3 and a cutter support 1-4 are arranged close to two length adjusting rods 2-3, an integrated cutter 3 is arranged on the positioning groove 1-3 and the cutter support 1-4, and the end part of the integrated cutter 3 is abutted to the positioning plate 1-2. Other components and connection modes are the same as those of the second embodiment or the third embodiment.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and reaming integrated tool of the embodiment is characterized in that a drilling blade 3-1-1 is processed at one end of a drilling body 3-1, a reaming blade 3-2-1 is processed at one end of a reaming body 3-2, and a reaming blade 3-3-1 is processed at one end of a reaming body 3-3. The drilling blade 3-1-1 is arranged at the outer side of the end part of the drilling body 3-1, the reaming blade 3-2-1 is arranged at the outer side of the end part of the reaming body 3-2, and the spot facing blade 3-3-1 is arranged at the outer side of the end part of the spot facing body 3-3. Other components and connection modes are the same as those of the first embodiment.

Linear bearings are arranged inside the reaming body 3-2 and the reaming body 3-3, the drilling body 3-1 can be inserted into the reaming body 3-2 and can move up and down, and the reaming body 3-2 can be inserted into the reaming body 3-3 and can move up and down.

The sixth specific implementation mode: the length-adjustable drilling and reaming and spot facing integrated tool of the present embodiment is described with reference to fig. 1 to 4, wherein the cutting edge rake angle of the drilling edge 3-1-1 is 2 °, the vertex angle of the drilling edge 3-1-1 is 150 °, the drilling edge 3-1-1 is a double relief angle, the first relief angle is 12 °, and the second relief angle is 25 °. Other components and connection modes are the same as those of the first embodiment.

The seventh embodiment: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and countersinking integrated tool of the embodiment is characterized in that two flat parts are processed on the outer side wall of a drilling body 3-1, the two flat parts are symmetrically arranged close to the other end of the drilling body 3-1, a reaming body 3-2 is a circular sleeve body, a strip-shaped protrusion is processed on the outer side wall of the circular sleeve body along the length direction, the countersinking body 3-3 is a cylinder with a blind hole processed at the center, a strip-shaped groove corresponding to the strip-shaped protrusion on the circular sleeve body is processed on the inner side wall of the blind hole, the reaming body 3-2 is slidably arranged in the countersinking body 3-3, the strip-shaped groove of the countersinking body 3-3 is matched with the strip-shaped protrusion of the reaming body 3-2, and the drilling body 3-1 is slidably arranged on the reaming body 3-2. Other components and connection modes are the same as those of the fourth embodiment or the first embodiment.

The specific implementation mode is eight: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and countersinking integrated tool of the embodiment is characterized in that a countersinking body 3-3 is provided with a length adjusting groove 3-4 along the axial direction, the length adjusting groove 3-4 is communicated with a blind hole, two fastening screws 3-5 are arranged opposite to the length adjusting groove 3-4 and are in threaded connection with the outer side wall of the blind hole, the end part of one fastening screw 3-5 is abutted against the flat part of a drilling body 3-1, the other fastening screw 3-5 is abutted against the outer side wall of a reaming body 3-2, the end part of one length adjusting rod 2-3 is abutted against the other flat part of the drilling body 3-1, and the end part of the other length adjusting rod 2-3 is abutted against the outer side wall of the reaming body 3-2. Other components and connection modes are the same as those of the third embodiment or the seventh embodiment.

In the embodiment, one length adjusting rod 2-3 is in contact with a drilling body 3-1, the other length adjusting rod 2-3 is in contact with a reaming body 3-2, the drilling body 3-1 and the reaming body 3-2 are adjusted through piezoelectric ceramics 2-1 during adjustment, and the drilling body 3-1 and the reaming body 3-2 are fixed through fastening screws 3-5, so that the length of a cutter can be adjusted. The length adjusting range of the drilling body 3-1 is 12 mm-30 mm. The length adjusting range of the reaming body 3-2 is 0 mm-10 mm.

The specific implementation method nine: the embodiment is described with reference to fig. 1 to 4, and the length-adjustable drilling, reaming and counterboring integrated tool of the embodiment is characterized in that a drilling body 3-1 is made of a hard alloy material, a reaming body 3-2 is made of a hard alloy material, a counterboring body 3-3 is made of a hard alloy material, a drilling blade 3-1-1 is made of a polycrystalline diamond material, a reaming blade 3-2-1 is made of a polycrystalline diamond material, and a counterboring blade 3-3-1 is made of a polycrystalline diamond material. Other components and connection modes are the same as those of the third embodiment or the seventh embodiment.

The drilling blade 3-1-1 is welded on the drilling body 3-1 by adopting a welding polycrystalline diamond blade, the reaming blade 3-2-1 is welded on the reaming body 3-2 by adopting a welding polycrystalline diamond blade, and the counter boring blade 3-3-1 is welded on the counter boring body 3-3 by adopting a welding polycrystalline diamond blade, so that the rigidity and the strength of the cutter are ensured, meanwhile, the cutting edge has high hardness and wear resistance, and the service life of the cutter is effectively prolonged.

The detailed implementation mode is ten: the embodiment is described with reference to fig. 1-4, and the length-adjustable drilling, reaming and spot facing integrated cutter of the embodiment is characterized in that the positioning groove 1-3 is a vertical plate with a V-shaped notch at the top, the cutter support 1-4 is a support body with an arc-shaped groove at the top, and the spot facing body 3-3 is arranged on the V-shaped notch of the positioning groove 1-3 and the arc-shaped groove of the cutter support 1-4. Other components and connection modes are the same as those of the first embodiment.

Principle of operation

Firstly, the length of the tool to be set is determined according to the depth of the hole to be actually processed, two fastening screws 3-5 on the side edge of the tool are loosened, and then the tool is placed and fixed on the flexible hinge 2. The signal generator is connected with the power amplifier to supply power to the piezoelectric ceramics, the two length adjusting rods 2-3 are controlled through the piezoelectric ceramics 2-1 by controlling the magnitude and the frequency of driving voltage, the extending lengths of the drilling body 3-1 and the reaming body 3-2 are adjusted through the length adjusting rods 2-3, and the length adjusting range of the drilling body 3-1 is 12 mm-30 mm. The length adjusting range of the reaming body 3-2 is 0 mm-10 mm, and the displacement of the drilling body 3-1 and the reaming body 3-2 can be accurately adjusted through the piezoelectric ceramic 2-1, so that the length of the cutter can be accurately adjusted. After the length is adjusted, the two fastening screws 3-5 are screwed down, and the length of the fixed cutter is unchanged. And putting the cutter into a tool shank buckle of the machine tool, screwing the cutter, installing the cutter on the machine tool, and operating the machine tool to drill and process the composite material.