Clamp for machining reduction gearbox shell

Abstract

The clamp for machining the reduction gearbox shell comprises the shell, and the shell is provided with a positioning hole and an assembling space formed in the shell; the fixing piece comprises a mounting disc and a base arranged on the upper end face of the mounting disc; the bottom clamping assembly comprises a bottom clamping piece and a bottom positioning piece which are fixedly connected with the base; the internal clamping assembly comprises an internal clamping piece and an internal positioning piece which are fixed to the base, the internal clamping piece is arranged in the assembling space, and the internal positioning piece is arranged on the internal clamping piece; the bottom clamping assembly comprises a bottom clamping assembly, an internal clamping assembly and a top clamping assembly, the bottom clamping assembly comprises a support and a top clamping piece, the support is fixedly connected with the base, the top clamping piece is arranged on the support, and the execution end of the top clamping piece abuts against the top of the shell. In this way, the shell can be clamped in all directions, and the clamp has the advantages of being simple in structure and stable in clamping.

Description

Technical Field

[0001] The utility model relates to the processing of a speed reducer housing, and particularly to a fixture for processing a speed reducer housing. Background Art

[0002] After the casting of the speed reducer housing is completed, a series of machining operations are required, and the positioning of the fixture is needed during the machining process. The current fixtures have the disadvantages of unstable clamping and complex structures during positioning. Therefore, it is necessary to improve the defects existing in the prior art. Summary of the Utility Model

[0003] The utility model aims to solve the problems mentioned in the above background art.

[0004] A fixture for processing a speed reducer housing according to the present application includes:

[0005] A housing having a positioning hole and an assembly space provided therein;

[0006] A fixing member including a mounting plate and a base provided on the upper end surface of the mounting plate;

[0007] A bottom clamping assembly including a bottom clamping member and a bottom positioning member respectively fixedly connected to the base;

[0008] An internal clamping assembly including an internal clamping member and an internal positioning member fixed to the base, the internal clamping member being provided in the assembly space and the internal positioning member being provided on the internal clamping member;

[0009] A top clamping assembly including a bracket fixedly connected to the base and a top clamping member provided on the bracket, the execution end of the top clamping member abutting against the top of the housing. By providing a bottom clamping assembly, an internal clamping assembly and a top clamping assembly to clamp the bottom, internal and top of the housing respectively, the housing can be clamped in all directions, and the fixture has the advantages of simple structure and stable clamping.

[0010] In a specific embodiment, the bottom clamping member includes a base fixedly connected to the base and a cylinder fixed to the base, the output end of the cylinder is pivotally connected to a pressing arm, and a connecting rod is pivotally connected between the pressing arm and the base. By driving the pressing arm to flip with the cylinder, the clamping of the bottom of the housing is realized, and the structure is simple and easy to implement.

[0011] In a specific embodiment, the bottom positioning member includes a bushing fixed to the base and a first positioning pin sleeved in the bushing. An air pressure channel communicating with the bushing is provided inside the base. By injecting gas into the air pressure channel, the first positioning pin is driven by the gas to move, so as to realize the positioning of the housing. The structure is simple and the practicability is strong.

[0012] In a specific embodiment, the internal clamping member includes a mounting seat and a limiting post fixed to the mounting seat. The limiting post is inserted into the assembly space. A core is provided inside the limiting post, and the bottom of the core communicates with the air pressure channel. By providing a core inside the limiting post, the core is used to expand and contract to clamp the inside of the housing, and the clamping is stable and the structure is simple.

[0013] In a specific embodiment, the internal positioning member includes a mounting post fixed to the mounting seat and a second positioning pin provided on the mounting post. The second positioning pin is in pin-hole fit with the positioning hole. By the cooperation of the second positioning pin and the positioning hole, the limiting of the housing is realized. The structure is simple and the limiting effect is good.

[0014] In a specific embodiment, the top clamping member includes a connecting seat fixed to the bracket and a hydraulic cylinder mounted on the connecting seat. The output end of the hydraulic cylinder is pivotally connected with a butting arm, and the butting arm is rotatably connected with the bracket. The hydraulic cylinder can drive the butting arm to flip and abut against the upper end surface of the housing. By driving the butting arm to flip through the hydraulic cylinder and abutting against the top of the housing through the butting arm, a stable limiting effect is achieved.

[0015] Beneficial effects: By providing a bottom clamping assembly, an internal clamping assembly and a top clamping assembly to clamp the bottom, inside and top of the housing respectively, the housing can be clamped in all directions, and the fixture has the advantages of simple structure and stable clamping. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of a fixture for processing a reduction gearbox housing in this embodiment;

[0017] Figure 2 is the structural schematic diagram of the housing;

[0018] Figure 3 is the structural schematic diagram of the bottom positioning member;

[0019] Figure 4 is the structural schematic diagram of the bottom clamping member;

[0020] Figure 5 is the structural schematic diagram of the internal clamping assembly;

[0021] Figure 6It is a schematic structural diagram of the top clamping assembly.

[0022] Among them: 100, clamp; 1, housing; 10, assembly space; 11, positioning hole; 2, bottom clamping assembly; 20, bottom positioning member; 200, mounting disc; 201, bushing; 202, first positioning pin; 203, base; 21, bottom clamping member; 210, cylinder; 211, connecting rod; 212, pressing arm; 3, internal clamping assembly; 30, mounting seat; 31, limiting post; 32, expanding core; 33, second positioning pin; 34, mounting post; 4, top clamping assembly; 40, bracket; 41, hydraulic cylinder; 42, abutting arm; 43, connecting seat. Specific embodiments

[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "clockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiment

[0027] See Figures 1-6, a fixture 100 for machining a speed reducer housing in this embodiment, includes a housing 1, the housing 1 has a positioning hole 11 and an assembly space 10 provided inside the housing 1; a fixing member, the fixing member includes a mounting plate 200 and a base 203 provided on the upper end surface of the mounting plate 200; a bottom clamping assembly 2, the bottom clamping assembly 2 includes a bottom clamping member 21 and a bottom positioning member 20 respectively fixedly connected to the base 203; an internal clamping assembly 3, the internal clamping assembly 3 includes an internal clamping member and an internal positioning member fixed to the base 203, the internal clamping member is arranged in the assembly space 10, and the internal positioning member is arranged on the internal clamping member; a top clamping assembly 4, the top clamping assembly 4 includes a bracket 40 fixedly connected to the base 203 and a top clamping member arranged on the bracket 40, and the execution end of the top clamping member abuts against the top of the housing 1. The utility model clamps the bottom, internal and top of the housing 1 by setting the bottom clamping assembly 2, the internal clamping assembly 3 and the top clamping assembly 4 respectively, so that the housing 1 can be clamped in all directions, and the fixture has the advantages of simple structure and stable clamping.

[0028] In a specific embodiment, the bottom clamping member 21 includes a base fixedly connected to the base 203 and a cylinder 210 fixed to the base. The output end of the cylinder 210 is pivotally connected to a pressing arm 212, and a connecting rod 211 is pivotally connected between the pressing arm 212 and the base. By driving the pressing arm 212 to flip through the cylinder 210, the clamping of the bottom of the housing 1 is realized, and the structure is simple and easy to implement.

[0029] In a specific embodiment, the bottom positioning member 20 includes a bushing 201 fixed to the base 203 and a first positioning pin 202 sleeved inside the bushing 201. An air pressure channel communicating with the bushing 201 is provided inside the base 203. By injecting gas into the air pressure channel, the first positioning pin 202 is driven to move by the gas, so as to realize the positioning of the housing 1, and the structure is simple and practical.

[0030] In a specific embodiment, the internal clamping member includes a mounting seat 30 and a limiting post 31 fixed to the mounting seat 30. The limiting post 31 is inserted into the assembly space 10, and a core 32 is arranged inside the limiting post 31. The bottom of the core 32 is communicated with the air pressure channel. By arranging the core 32 inside the limiting post 31, the inside of the housing 1 is clamped by the expansion and contraction of the core 32, and the clamping is stable and the structure is simple.

[0031] In a specific embodiment, the internal positioning member includes a mounting post 34 fixed to the mounting base 30 and a second positioning pin 33 disposed on the mounting post 34. The second positioning pin 33 is in pinhole fit with the positioning hole 11. Through the cooperation of the second positioning pin 33 and the positioning hole 11, the limiting of the housing 1 is realized. The structure is simple and the limiting effect is good.

[0032] In a specific embodiment, the top clamping member includes a connecting seat 43 fixed to the bracket 40 and a hydraulic cylinder 41 mounted on the connecting seat 43. The output end of the hydraulic cylinder 41 is pivotally connected with an abutting arm 42. The abutting arm 42 is rotatably connected with the bracket 40. The hydraulic cylinder 41 can drive the abutting arm 42 to flip and abut against the upper end surface of the housing 1. By driving the abutting arm 42 to flip through the hydraulic cylinder 41 and abutting against the top of the housing 1 through the abutting arm 42, a stable limiting effect is achieved.

[0033] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A fixture for processing a reduction gearbox housing, characterized in that: include: A housing, wherein the housing has a positioning hole and an assembly space provided in the housing; A fixing member, the fixing member comprising a mounting plate and a base provided on an upper end surface of the mounting plate; A bottom clamping assembly, the bottom clamping assembly comprising a bottom clamping member and a bottom positioning member respectively fixedly connected to the base; An internal clamping assembly, the internal clamping assembly comprising an internal clamping member and an internal positioning member fixed to the base, the internal clamping member being arranged in the assembly space, and the internal positioning member being arranged on the internal clamping member; A top clamping assembly comprises a bracket fixedly connected to the base and a top clamping piece arranged on the bracket, wherein an execution end of the top clamping piece abuts against the top of the shell.

2. A reduction gearbox housing processing fixture as claimed in claim 1, characterized in that: The bottom clamping member comprises a base fixedly connected to the base and a cylinder fixed to the base, a pressure arm is pivotally connected to the output end of the cylinder, and a connecting rod is pivotally connected between the pressure arm and the base.

3. A reduction gearbox housing processing fixture as claimed in claim 2, characterized in that: The bottom positioning member comprises a shaft sleeve fixed to the base and a first positioning pin sleeved in the shaft sleeve, and an air pressure channel communicating with the shaft sleeve is arranged inside the base.

4. A reduction gearbox housing processing fixture as claimed in claim 3, characterized in that: The internal clamping member includes a mounting seat and a limiting column fixed on the mounting seat, the limiting column is inserted in the assembly space, an expansion core is arranged in the limiting column, and the bottom of the expansion core is communicated with the air pressure channel.

5. A reduction gearbox housing processing fixture as claimed in claim 4, characterized in that: The internal positioning member includes a mounting column fixed on the mounting seat and a second positioning pin arranged on the mounting column, and the second positioning pin is matched with the positioning hole pin hole.

6. A fixture for processing a reduction gearbox housing as claimed in claim 5, characterized in that: The top clamping member includes a connecting seat fixed to the bracket and a hydraulic cylinder installed on the connecting seat, the output end of the hydraulic cylinder is pivotally connected to an abutment arm, the abutment arm and the bracket are rotatably connected, and the hydraulic cylinder can drive the abutment arm to flip and abut against the upper end surface of the shell.

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