1. The utility model provides a frock is fixed in processing of reduction gear casing, includes base (1), its characterized in that: the hydraulic cylinder is characterized in that hydraulic chambers (2) are fixedly mounted at the top of the base (1) and in positions close to two ends, hydraulic oil is filled in the hydraulic chambers (2), a stroke shell (3) is fixedly mounted at the top of the hydraulic chambers (2), the positions, close to two ends, of two sides of the inner wall of the stroke shell (3) are fixedly mounted with eight limiting strips (4) and two limiting strips (4) are distributed in a group, an adjusting device (5) is movably sleeved in the stroke shell (3) through the limiting strips (4), a clamping device (6) is movably sleeved in the adjusting device (5), a limiting cavity (7) is fixedly mounted at the top of the stroke shell (3), a limiting groove I (8) is formed in the position, which is front of the limiting cavity (7) and is close to two sides, a limiting groove II (9) is formed in the position, which is front of the limiting cavity (7) and is located between the limiting grooves I8), the top fixed mounting of spacing chamber (7) has top cap (10), the top fixed mounting of top cap (10) has the one end of locator (11) and locator (11) output shaft to contact with the top of clamping device (6), the one end fixed mounting that circular through-hole and this circular through-hole were seted up to one side of hydraulic pressure room (2) has honeycomb duct (12), honeycomb duct (12) run through spacing chamber (7) and are linked together with the inner chamber of clamping device (6).

2. The frock of claim 1 is fixed in processing of reduction gear casing, its characterized in that: adjusting device (5) are including adjusting bin (51), the top fixed mounting of adjusting bin (51) has roof (52), fixed mounting has socket ring (53) on the position that adjusting bin (51) inner wall is close to the top, fixed mounting has stopper (54) on the position that adjusting bin (51) surface both sides and be close to the top, stopper (54) cooperate with spacing (4), the bottom fixed mounting of stopper (54) has regulation pole (55), it has adjusting sleeve (56) and adjusting sleeve (56) fixed mounting to cup jointed adjusting rod (55) surface activity and is linked together at the top of hydraulic pressure room (2) and with the inner chamber of hydraulic pressure room (2).

3. The frock of claim 1 is fixed in processing of reduction gear casing, its characterized in that: the clamping device (6) comprises a clamping bin (61), the bottom of the clamping bin (61) is designed to be open, a limiting seat (62) is fixedly arranged on the position of the outer surface of the clamping bin (61) close to the top, the limiting seat (62) is matched with the adjusting device (5), a placing frame (63) is fixedly arranged at one side of the outer surface of the clamping bin (61) and close to the top, a sleeve (64) is fixedly arranged at one side of the outer surface of the clamping bin (61) and below the placing frame (63), the sleeve (64) is communicated with the inner cavity of the clamping bin (61), the telescopic sleeve (65) is movably sleeved in the sleeve (64), a clamping plate (66) is fixedly arranged at one end of the telescopic sleeve (65) and at the position outside the clamping bin (61), and hydraulic oil is filled in the clamping bin (61) and the adjusting bin (51).

Background

The speed reducer is a very common device, the shadow can be seen in various industries such as transportation, aerospace, construction and machinery, in the manufacturing process of the speed reducer, an important step is to process the speed reducer shell, the speed reducer shell can provide a very stable environment for various internal gear parts, so the operation stability of the speed reducer is directly influenced by the processing quality of the speed reducer, the speed reducer is generally processed in a casting cutting mode, the casting is fixed on a tool after being manufactured from a die, the traditional tool is composed of a rectangular plate of a steel structure, grooves are formed in the surface of the plate, and the casting is fixed at the top of the plate through bolts during fixing to process the plate, so that the fixing tool is the fixing tool for processing the speed reducer shell with the widest application range at present.

Although the existing fixing tool has certain advantages, certain limitations still exist in the actual use process, because the fixing mode adopted by the existing fixing tool needs the bottom of the speed reducer to be kept flat, the bottom needs to be made into a more standard cube shape in the casting manufacturing process, the bottom can be conveniently fixed on a plate, and the cube of the bottom basically can be cut to be in a required shape in the subsequent processing process, so that more working hours need to be wasted when the bottom of the casting is processed, the materials are wasted, the production cost is improved, and the utilization rate of the materials is reduced.

Disclosure of Invention

Aiming at the defects of the existing speed reducer shell processing and fixing tool in the background technology in the using process, the invention provides the speed reducer shell processing and fixing tool which has the advantage that the bottom appearance of a casting does not need to be limited in the casting manufacturing process, and the problem that more working hours and materials are wasted when the bottom of the casting is processed is solved.

The invention provides the following technical scheme: a fixing tool for machining a speed reducer shell comprises a base, wherein a hydraulic chamber is fixedly mounted at the top of the base and at positions close to two ends of the base, hydraulic oil is filled in the hydraulic chamber, a stroke shell is fixedly mounted at the top of the hydraulic chamber, the positions, close to the two ends, of two sides of the inner wall of the stroke shell are fixedly mounted with limiting strips, the number of the limiting strips is eight, the limiting strips are distributed in a group of two, an adjusting device is movably sleeved in the stroke shell through the limiting strips, a clamping device is movably sleeved in the adjusting device, a limiting cavity is fixedly mounted at the top of the stroke shell, a limiting groove I is formed in the position, close to the two sides, of the front of the limiting cavity, a limiting groove II is formed in the position, between the limiting grooves I8, of the front of the limiting cavity, a top cover is fixedly mounted at the top of the limiting cavity, a positioner is fixedly mounted at the top of the top cover, and one end of an output shaft of the positioner is in contact with the top of the clamping device, a round through hole is formed in one side of the hydraulic chamber, a guide pipe is fixedly mounted at one end of the round through hole, penetrates through the limiting cavity and is communicated with the inner cavity of the clamping device.

Preferably, adjusting device includes the surge bin, the top fixed mounting in surge bin has the roof, fixed mounting has the cover to connect the ring on the position that the surge bin inner wall is close to the top, fixed mounting has the stopper on the position that surge bin surface both sides and be close to the top, the stopper cooperatees with spacing, the bottom fixed mounting of stopper has the regulation pole, it has adjusting sleeve and adjusting sleeve fixed mounting to be linked together at the top of hydraulic pressure room and with the inner chamber of hydraulic pressure room to adjust pole surface activity cover.

Preferably, clamping device is including pressing from both sides tight storehouse, the bottom that presss from both sides tight storehouse is the opening design, it cooperatees with adjusting device to press from both sides fixed mounting to have spacing seat and spacing seat on the position that tight storehouse surface is close to the top, it has the rack to press from both sides tight storehouse surface one side and be close to fixed mounting on the position of top, it has the sleeve pipe to press from both sides tight storehouse surface one side and be located the fixed mounting on the position of rack below, the sleeve pipe is linked together with the inner chamber that presss from both sides tight storehouse, telescopic tube has cup jointed the telescopic tube in the inside activity of sleeve pipe, fixed mounting has the clamp plate on the position that telescopic tube one end just is located the tight storehouse outside of clamp, the inside that presss from both sides tight storehouse and adjust the storehouse is equipped with hydraulic oil.

The invention has the following beneficial effects:

1. the invention fixedly installs the placing rack on one side of the outer surface of the clamping bin and the position close to the top, so that when the shell of the speed reducer is fixed, the protruding part of the outer surface of the casting of the shell of the speed reducer is placed on the top of the placing rack, at the moment, the clamping device moves in the vertical downward direction under the action of the gravity of the casting of the shell of the speed reducer, because the bottom of the clamping bin is in an open design, the pressure of hydraulic oil in the clamping bin and the adjusting bin is increased, meanwhile, the weight born by the clamping device is increased, the adjusting device and the clamping device are sleeved in the stroke shell in a whole body, the adjusting sleeve is communicated with the inner cavity of the hydraulic chamber, the adjusting rod extrudes the hydraulic oil in the adjusting sleeve and the hydraulic inner cavity to increase the pressure of the hydraulic oil, under the action of the pressure, the telescopic sleeve extends out of the sleeve, and the clamping plate is contacted with the outer surface of the casting and clamps the casting, and the intensity of the pressure intensity is related to the weight of the casting of the speed reducer shell, so that when the weight of the casting is smaller, the clamping force of the clamping plate on the casting is also at a lower level, and when the weight of the casting is larger, the clamping force of the clamping plate on the casting is also at a higher level, thereby ensuring that the casting with a thinner thickness cannot deform and cause scrapping due to excessive clamping force, and reducing the scrapping rate in the machining process.

2. According to the invention, the clamping force of the clamping plate on the casting depends on the self weight of the workpiece, so that the weight of the casting is continuously reduced along with the cutting in the processing process, the weight borne by the clamping device is reduced, the clamping force of the telescopic sleeve and the clamping plate on the casting is reduced, the problem that the casting is scrapped due to the fact that the surface of the casting is deformed due to the fact that the clamping force of the telescopic sleeve and the clamping plate is too large because the stress which can be borne by the inner wall of the casting is reduced along with the reduction of the thickness of the inner wall of the casting in the cutting process is avoided, and the protection capability of the device on the casting is improved.

3. According to the invention, the clamping plate is fixedly arranged at one end of the telescopic sleeve and positioned at the outer side of the clamping bin, so that the casting is fixed by the device, and the two sides of the casting are clamped by the clamping plate, and the casting is fixed in a clamping mode without reserving a flat bottom surface for fixing, so that the whole volume of the casting is reduced, the problems of wasting a large amount of materials and working hours during the later cutting of the bottom of the casting are avoided, the production cost is reduced, and the utilization rate of the materials is improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view of a clamping device constructed in accordance with the present invention;

FIG. 4 is a cross-sectional view of a clamping device of the present invention;

FIG. 5 is a schematic view of a structural adjustment device of the present invention;

FIG. 6 is a schematic bottom view of the structural adjustment device of the present invention;

FIG. 7 is a schematic cross-sectional view taken along the direction A in FIG. 6 according to the present invention;

FIG. 8 is a schematic cross-sectional view taken along direction B in FIG. 6 according to the present invention.

In the figure: 1. a base; 2. a hydraulic chamber; 3. a travel housing; 4. a limiting strip; 5. an adjustment device; 51. a regulating bin; 52. a top plate; 53. a sleeving connection ring; 54. a limiting block; 55. adjusting a rod; 56. adjusting the sleeve; 6. a clamping device; 61. clamping the bin; 62. a limiting seat; 63. placing a rack; 64. a sleeve; 65. a telescopic sleeve; 66. a clamping plate; 7. a limiting cavity; 8. a limiting groove I; 9. a limiting groove II; 10. a top cover; 11. a positioner; 12. and a flow guide pipe.

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. 1-2, a reducer casing processing and fixing tool comprises a base 1, a hydraulic chamber 2 is fixedly mounted at the top of the base 1 and at positions close to two ends of the base, hydraulic oil is contained in the hydraulic chamber 2, a stroke shell 3 is fixedly mounted at the top of the hydraulic chamber 2, limit strips 4 are fixedly mounted at positions close to two ends of the inner wall of the stroke shell 3, the number of the limit strips 4 is eight, the two limit strips are distributed as a group, and an adjusting device 5 is movably sleeved inside the stroke shell 3 through the limit strips 4.

Referring to fig. 5-8, the adjusting device 5 includes an adjusting bin 51, a top plate 52 is fixedly mounted on the top of the adjusting bin 51, a sleeve ring 53 is fixedly mounted on the inner wall of the adjusting bin 51 near the top, a limiting block 54 is fixedly mounted on the two sides of the outer surface of the adjusting bin 51 near the top, the limiting block 54 is matched with the limiting strip 4, an adjusting rod 55 is fixedly mounted at the bottom of the limiting block 54, an adjusting sleeve 56 is movably sleeved on the outer surface of the adjusting rod 55, and the adjusting sleeve 56 is fixedly mounted on the top of the hydraulic chamber 2 and is communicated with the inner cavity of the hydraulic chamber 2.

Referring to fig. 2, 3-4 and 7-8, a clamping device 6 is movably sleeved inside an adjusting device 5, the clamping device 6 includes a clamping chamber 61, the bottom of the clamping chamber 61 is open, a position of the outer surface of the clamping chamber 61 near the top is fixedly provided with a limit seat 62, the limit seat 62 is matched with the adjusting device 5, a placing frame 63 is fixedly provided on one side of the outer surface of the clamping chamber 61 near the top, when the housing of the speed reducer is fixed, the protruding part of the outer surface of the casting of the casing of the speed reducer is placed on the top of the placing frame 63, at this time, the clamping device 6 moves in a vertical downward direction under the gravity of the casting of the casing of the speed reducer, because the bottom of the clamping chamber 61 is open, the pressure of hydraulic oil inside the clamping chamber 61 and the adjusting chamber 51 is increased, and because the weight born by the clamping device 6 is increased, and the adjusting device 5 and the clamping device 6 are sleeved inside the stroke housing 3 The whole is fixedly arranged at the top of the hydraulic chamber 2 through the adjusting sleeve 56 and communicated with the inner cavity of the hydraulic chamber 2, so that the adjusting rod 55 extrudes the hydraulic oil in the adjusting sleeve 56, namely the inner cavity of the hydraulic chamber 2 to increase the pressure of the hydraulic oil, the hydraulic chamber 2 is communicated with the clamping device 6 through the guide pipe 12 to ensure that the pressure inside the adjusting bin 51, the clamping bin 61 and the hydraulic chamber 2 is the same, the telescopic sleeve 65 extends out of the sleeve 64 under the action of the pressure, the clamping plate 66 is contacted with and clamps the outer surface of the casting, the strength of the pressure is related to the weight of the casting for the reducer shell, the clamping force of the clamping plate 66 on the casting is at a lower level when the weight of the casting is smaller, and the clamping force of the clamping plate 66 on the casting is at a higher level when the weight of the casting is larger, thereby ensuring that the casting with a thinner thickness cannot deform the surface and cause scrapping due to the excessive clamping force, the rejection rate in the processing process is reduced.

Referring to fig. 7-8, a fixture for fixing a reducer shell during machining is disclosed, a sleeve 64 is fixedly mounted on one side of the outer surface of a clamping bin 61 and in a position below a placing rack 63, the sleeve 64 is communicated with an inner cavity of the clamping bin 61, a telescopic sleeve 65 is movably sleeved inside the sleeve 64, and a clamping plate 66 is fixedly mounted at one end of the telescopic sleeve 65 and in a position outside the clamping bin 61, so that the device fixes a casting to clamp two sides of the casting through the clamping plate 66.

Referring to fig. 2, 4 and 7-8, a fixture for machining and fixing a speed reducer casing comprises a clamping chamber 61 and an adjusting chamber 51, hydraulic oil is filled in the clamping chamber 61 and the adjusting chamber 51, a limiting chamber 7 is fixedly installed at the top of a stroke casing 3, limiting grooves i 8 are formed in the positions, close to the two sides, of the front surface of the limiting chamber 7, a limiting groove ii 9 is formed in the position, between the limiting grooves i 8, of the front surface of the limiting chamber 7, a top cover 10 is fixedly installed at the top of the limiting chamber 7, a positioner 11 is fixedly installed at the top of the top cover 10, one end of an output shaft of the positioner 11 is in contact with the top of a clamping device 6, a circular through hole is formed in one side of a hydraulic chamber 2, a guide pipe 12 is fixedly installed at one end of the circular through hole, the guide pipe 12 penetrates through the limiting chamber 7 and is communicated with an inner cavity of the clamping device 6, so that the weight of a casting is continuously reduced along with the cutting in the machining process, the weight born by the clamping device 6 is reduced, so that the hydraulic pressure inside the adjusting bin 51, the clamping bin 61 and the hydraulic chamber 2 is reduced, the clamping force of the telescopic sleeve 65 and the clamping plate 66 on the casting is reduced, the problem that the casting is scrapped due to the fact that the clamping force of the telescopic sleeve 65 and the clamping plate 66 is too large and the surface of the casting is deformed in the machining process due to the fact that the stress capable of being born is reduced along with the reduction of the thickness of the inner wall of the casting during cutting is reduced is solved, and the protection capability of the device on the casting is improved.

The using method of the invention is as follows:

in the using process, the projecting part of the outer surface of the casting of the reducer casing is placed on the top of the placing frame 63, at this time, the clamping device 6 moves in the vertical downward direction in fig. 2 under the action of the gravity of the casting of the reducer casing, the pressure of the hydraulic oil in the clamping bin 61 and the adjusting bin 51 is increased due to the open design of the bottom of the clamping bin 61, meanwhile, the pressure of the hydraulic oil in the adjusting bin 56, namely the inner cavity of the hydraulic chamber 2 is increased due to the increased weight borne by the clamping device 6 and the integral body sleeved in the stroke casing 3 of the adjusting device 5 and the clamping device 6, so that the adjusting rod 55 presses the hydraulic oil in the adjusting sleeve 56, namely the inner cavity of the hydraulic chamber 2, the pressure of the adjusting bin 51, the clamping bin 61 and the hydraulic chamber 2 is increased, the pressure in the hydraulic chamber 2 is communicated with the guide pipe 12, the telescopic sleeve 65 extends out of the sleeve 64 under the action of the pressure, and the clamping plate 66 is contacted with the outer surface of the casting and clamps the casting, and the intensity of the pressure is related to the weight of the casting of the reducer shell, so that when the weight of the casting is smaller, the clamping force of the clamping plate 66 on the casting is also at a lower level, when the weight of the casting is larger, the clamping force of the clamping plate 66 on the casting is also at a higher level, and as the cutting is carried out, the weight of the casting is reduced, so that the weight born by the clamping device 6 is reduced, the hydraulic pressure inside the adjusting bin 51, the clamping bin 61 and the hydraulic chamber 2 is reduced, and the clamping force of the telescopic sleeve 65 and the clamping plate 66 on the casting is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.