Jig for processing wrist body

Abstract

The utility model relates to a wrist body machining jig, and belongs to the technical field of clamping tools for robot part machining, the wrist body machining jig comprises a bottom plate and a positioning and clamping device installed on the bottom plate, and the positioning and clamping device comprises a tail supporting and clamping assembly, a wrist body inner supporting assembly and two supporting rods; the two supporting rods are vertically fixed to the bottom plate and used for supporting a wrist body. The wrist is formed by combining conventional mechanical parts, the structure is simple, manufacturing is easy, the tail supporting and clamping assembly, the wrist body inner supporting assembly and the two supporting rods are specially arranged by combining the structural characteristics of the wrist body, the clamping effect is good, and the clamping process is simple and convenient.

Description

Technical Field

[0001] This application relates to the technical field of clamping tools for robot component processing, and particularly to a fixture for wrist body processing. Background Art

[0002] Currently, with the development of the automation industry, various products have emerged, and the non-standard industry has received great attention. The non-standard industry needs to develop different products according to different requirements of customers.

[0003] For the non-standard wrist body 7 as shown in Figure 1 and used in the robot field, due to its relatively special structure, it cannot be clamped by conventional clamping tools.

[0004] Therefore, when processing it, a corresponding clamping fixture needs to be specially developed. Utility Model Content

[0005] The purpose of this application is to provide a fixture for wrist body processing to solve the problems raised in the above background art.

[0006] To achieve the above purpose, this application provides a fixture for wrist body processing and adopts the following technical solutions:

[0007] A fixture for wrist body processing includes a bottom plate and a positioning and clamping device installed on the bottom plate. The positioning and clamping device includes a tail support and clamping assembly, a wrist body inner support assembly, and two support rods. The two support rods are vertically fixed on the bottom plate and are used to support the wrist body;

[0008] The tail support and clamping assembly includes a first bracket and a rotary clamping cylinder. The first bracket is fixed on the bottom plate. The rotary clamping cylinder is installed in the first bracket, and the output end of the rotary clamping cylinder extends out of the first bracket. A pressing block is also fixed to the output end of the rotary clamping cylinder. Symmetrically fixed on the top surface of the first bracket are support blocks, and the support blocks on both sides are arranged in a V shape;

[0009] The wrist body inner support assembly is arranged corresponding to the tail support and clamping assembly. The wrist body inner support assembly includes a second bracket, a lifting cylinder, a lifting block, a support seat, and an inner support assembly. The second bracket is fixed on the bottom plate. The lifting cylinder is vertically fixed in the second bracket. The piston rod of the lifting cylinder extends out of the second bracket. The lifting block is fixed to the piston rod of the lifting cylinder. The inner support assembly includes an annular seat. Three clamping arms are evenly hinged on the annular seat. A connecting rod is hinged in the middle of the clamping arm. One end of the connecting rod is hinged on the lifting block. The support seat is fixed on the second bracket.

[0010] Preferably, in order to ensure a good clamping effect, a clamping pad is detachably fixed on the outer side wall of the clamping arm. The working surface of the clamping pad is an arc surface, and anti-slip lines are provided on the arc surface.

[0011] The clamping pad is made of rubber material.

[0012] Preferably, a convex stop block is provided at the top of the seat body of the support seat.

[0013] By adopting the above technical solution, the setting of the convex stop block can pre-limit the wrist body. After the wrist body is placed on the jig, only by pushing the wrist body towards the tail support clamping component, through the limit of the convex stop block, the wrist body can be placed in a roughly appropriate position, which is convenient for subsequent clamping.

[0014] A protective cover is further provided on the top of the bottom plate. The protective cover is connected between the first bracket and the second bracket. A gas diverter is provided inside the protective cover, and the rotary clamping cylinder and the lifting cylinder are both connected to the gas diverter.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: The jig for processing the wrist body is composed of relatively conventional mechanical components, with a simple structure and easy to manufacture. Combining with the structural characteristics of the wrist body, a tail support clamping component, a wrist body inner support component and two support rods are specially provided, with good clamping effect and relatively simple clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram for reflecting the wrist body in the prior art.

[0017] Figure 2 is a schematic overall structure diagram of an embodiment of the present application.

[0018] Figure 3 is a usage state diagram of an embodiment of the present application.

[0019] Explanation of reference numerals: 1, bottom plate; 2, tail support clamping component; 21, first bracket; 22, rotary clamping cylinder; 23, pressing block; 24, support block; 3, wrist body inner support component; 31, second bracket; 32, lifting cylinder; 33, lifting block; 34, support seat; 35, annular seat; 36, clamping arm; 37, connecting rod; 38, clamping pad; 4, support rod; 5, convex stop block; 6, protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following Figure 2-3 is a further detailed description of the present application in conjunction with the attached

[0021] An embodiment of the present application discloses a jig for processing a wrist body. Refer to Figure 2, including a bottom plate 1 and a positioning and clamping device installed on the bottom plate 1. The positioning and clamping device includes a tail support and clamping assembly 2, a wrist body inner support assembly 3, and two support rods 4. The two support rods 4 are vertically fixed on the bottom plate 1 and are used to support the wrist body;

[0022] The tail support and clamping assembly 2 includes a first bracket 21 and a rotary clamping cylinder 22. The first bracket 21 is fixed on the bottom plate 1, the rotary clamping cylinder 22 is installed in the first bracket 21, and the output end of the rotary clamping cylinder 22 extends out of the first bracket 21. A pressing block 23 is also fixed to the output end of the rotary clamping cylinder 22. Support blocks 24 are symmetrically fixed on the top surface of the first bracket 21, and the support blocks 24 on both sides are arranged in a V shape;

[0023] The wrist body inner support assembly 3 is arranged corresponding to the tail support and clamping assembly 2. The wrist body inner support assembly 3 includes a second bracket 31, a lifting cylinder 32, a lifting block 33, a support seat 34, and an inner support assembly. The second bracket 31 is fixed on the bottom plate 1, the lifting cylinder 32 is vertically fixed in the second bracket 31, the piston rod of the lifting cylinder 32 extends out of the second bracket 31, the lifting block 33 is fixed on the piston rod of the lifting cylinder 32. The inner support assembly includes an annular seat 35. Three clamping arms 36 are evenly hinged on the annular seat 35. A connecting rod 37 is hinged in the middle of the clamping arm 36. One end of the connecting rod 37 is hinged on the lifting block 33. A clamping pad 38 is detachably fixed on the outer side wall of the clamping arm 36. The working surface of the clamping pad 38 is an arc surface, and anti-slip lines are arranged on the arc surface. The clamping pad 38 is made of rubber material. The support seat 34 is fixed on the second bracket 31.

[0024] Refer to Figure 2 , the top of the seat body of the support seat 34 has a raised stop block 5. The setting of the raised stop block 5 can pre-limit the wrist body. After placing the wrist body on the fixture, only need to push the wrist body towards the tail support and clamping assembly 2. Through the limitation of the raised stop block 5, the wrist body can be placed in a roughly appropriate position, which is convenient for subsequent clamping.

[0025] Refer to Figure 2 , a protective cover 6 is also arranged on the top of the bottom plate 1. The protective cover 6 is connected between the first bracket 21 and the second bracket 31. A gas diverter is arranged in the protective cover 6. The rotary clamping cylinder 22 and the lifting cylinder 32 are both connected to the gas diverter.

[0026] The implementation principle of a fixture for processing a wrist body in an embodiment of the present application is:

[0027] Refer to Figure 2 and Figure 3, align one side of the circular shaft hole of the wrist body with the wrist body inner support assembly 3, place the outer ring of the end flange of the wrist body in the V-shaped groove formed by the two support blocks 24 on the first bracket 21, and place it stably on the fixture under its own gravity and the support of the support seat 34 and the two support rods 4. After that, the lifting cylinder 32 drives the lifting block 33 to move upward, the lifting block 33 pushes the top of the clamping arm 36 to rotate outward through the connecting rod 37, and the clamping arm 36 tightens the wrist body from the inner wall of the circular shaft hole through the clamping pad 38. The rotary clamping cylinder 22 in the tail support clamping assembly 2 acts to drive the pressure block 23 to press down on the wrist body, so that the wrist body can be clamped and positioned.

[0028] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A wrist processing jig, comprising a base plate (1) and a positioning clamping device mounted on the base plate (1), characterized in that: The positioning clamping device comprises a tail support clamping assembly (2), a wrist body inner support assembly (3) and two support rods (4). The two support rods (4) are vertically fixed on the base plate (1) and are used to support the wrist body. The tail support clamping assembly (2) comprises a first bracket (21) and a rotary clamping cylinder (22), wherein the first bracket (21) is fixed on the base plate (1), the rotary clamping cylinder (22) is installed in the first bracket (21), and the output end of the rotary clamping cylinder (22) extends out of the first bracket (21), a pressure block (23) is also fixed to the output end of the rotary clamping cylinder (22), and support blocks (24) are symmetrically fixed to the top surface of the first bracket (21), and the support blocks (24) on both sides are arranged in a V shape. The wrist body support assembly (3) is arranged corresponding to the tail support clamping assembly (2), and the wrist body support assembly (3) includes a second bracket (31), a lifting cylinder (32), a lifting block (33), a support seat (34) and an inner support assembly. The second bracket (31) is fixed on the base plate (1), the lifting cylinder (32) is vertically fixed in the second bracket (31), the piston rod of the lifting cylinder (32) extends out of the second bracket (31), the lifting block (33) is fixed on the piston rod of the lifting cylinder (32), and the inner support assembly includes an annular seat (35), three clamping arms (36) are evenly hinged on the annular seat (35), a connecting rod (37) is hinged in the middle of the clamping arm (36), one end of the connecting rod (37) is hinged on the lifting block (33), and the support seat (34) is fixed on the second bracket (31).

2. The wrist processing tool according to claim 1, characterized in that: A clamping pad (38) is detachably fixed on the outer side wall of the clamping arm (36); the working surface of the clamping pad (38) is an arc-shaped surface, and anti-slip grooves are arranged on the arc-shaped surface.

3. The wrist processing tool according to claim 2, characterized in that: The clamping pad (38) is made of rubber material.

4. The wrist processing tool according to claim 1, characterized in that: The top of the support seat (34) is provided with a protruding stopper (5).

5. The wrist processing tool according to claim 1, characterized in that: A protective cover (6) is also provided on the top of the base plate (1), and the protective cover (6) is connected between the first bracket (21) and the second bracket (31). A gas diverter is provided inside the protective cover (6), and the rotary clamping cylinder (22) and the lifting cylinder (32) are both connected to the gas diverter.

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