Automobile part shell grinding jig

Abstract

The utility model relates to an automobile part shell polishing jig in the technical field of automobile part jigs. When the transmission shell is polished, the transmission shell is placed in a first profiling groove and a second profiling groove, a first positioning air cylinder and a second positioning air cylinder are started, a first lower clamping plate and a second lower clamping plate synchronously push the transmission shell, the transmission shell is pushed to one side of a groove cavity of the first profiling groove, and two third positioning air cylinders are started; an L-shaped connecting rod is matched with a connecting plate to drive two upper-layer clamping plates to clamp the upper end of the transmission shell, point extrusion is conducted on the transmission shell through a first lower-layer clamping plate, a second lower-layer clamping plate and the upper-layer clamping plates, and the occupied area of the surface of the transmission shell is small; according to the grinding device, the upper end face, the front end face, the right end face and the rear end face of the transmission shell can be synchronously ground through the grinding device, four faces are machined at a time, the transmission shell does not need to be disassembled for multiple times when being ground, the operation process is saved, and then the grinding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts fixture technology, and in particular to a grinding fixture for automotive parts housings. Background Technology

[0002] The transmission mechanism of an automobile is protected by a transmission housing, which is polished during the production process.

[0003] In existing technology, when grinding the surface of a square transmission housing, the transmission housing is first clamped on a fixture, and then the four sides of the transmission housing are ground by a grinding device. However, this method, which can only grind one side of the transmission housing at a time, is inefficient. Moreover, when grinding each side, the transmission housing needs to be removed from the fixture and then clamped on the fixture with the other side facing the grinding device, which further reduces grinding efficiency. In addition, the grinding operation is quite cumbersome. Utility Model Content

[0004] To address the problem of low grinding efficiency caused by only being able to grind one side at a time, as mentioned in the background section, this utility model provides the following technical solution:

[0005] A grinding fixture for automotive parts housings includes a fixture body for limiting the position of a transmission housing;

[0006] The fixture body includes a limiting seat, and a first contouring base fixture and a second contouring base fixture are mounted on the upper end of the limiting seat for supporting the transmission housing.

[0007] The front end of the first contour base fixture is equipped with a lower clamping plate for pushing the transmission housing.

[0008] The second contour base fixture has a lower clamping plate for pushing the transmission housing installed at its front end, and a lead screw nut installed at its lower end.

[0009] The limiting seat includes a base, and a reciprocating screw is installed at the middle of the right end of the base for cooperating with the lead screw nut to control the second contour base fixture to move left and right.

[0010] The upper end of the base is equipped with two upper clamping plates for clamping the upper end of the transmission housing, and the limiting seat includes a dust-blocking plate for dust protection.

[0011] Furthermore, a front-end contouring positioning guide post for limiting the left end of the transmission housing is installed on the left side of the first contouring base fixture, a positioning cylinder for controlling the back-and-forth movement of the lower clamping plate is installed on the front end of the lower clamping plate, and a contouring groove for limiting the transmission housing is machined on the upper end of the first contouring base fixture.

[0012] Furthermore, the upper end of the second contour base fixture is machined with a contour groove for limiting the position of the transmission housing.

[0013] Furthermore, a positioning cylinder is installed at the front end of the lower clamping plate 2 for controlling the lower clamping plate 2 to move back and forth, and a limiting plate is installed at the rear end of the positioning cylinder 2 for limiting the positioning cylinder 2.

[0014] Furthermore, the lead screw nut has multiple threaded holes on its side, and the bottom left side of the second contour base fixture has a limiting groove for limiting the dust cover plate.

[0015] Furthermore, a connecting plate is installed at the left end of the upper clamping plate, a reinforcing plate for increasing the mechanical strength of the upper clamping plate is installed at the right end of the connecting plate, an L-shaped connecting rod is installed at the left end of the connecting plate, and a positioning cylinder is installed at one end of the L-shaped connecting rod for cooperating with the L-shaped connecting rod to control the upper clamping plate to move back and forth.

[0016] Furthermore, an L-shaped connecting plate is installed on the right end of the dust-shielding plate, and multiple bolts for limiting the L-shaped connecting plate by engaging with threaded holes are installed on the right end of the L-shaped connecting plate.

[0017] Furthermore, a handwheel for rotating the reciprocating screw is installed at the right end of the reciprocating screw, a limiting sleeve for limiting the reciprocating screw is installed at one end of the reciprocating screw, a sealing plate for limiting the reciprocating screw is installed at the middle of the right end of the base, and a plurality of bolts for limiting the sealing plate are installed on the edge of the sealing plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] When grinding the transmission housing, the transmission housing is placed in the grooves of contour groove one and contour groove two. Positioning cylinder one and positioning cylinder two are activated, causing lower clamping plates one and two to push the transmission housing synchronously, thus pushing the transmission housing to one side of the groove cavity of contour groove one. Then, two positioning cylinders three are activated, causing the L-shaped connecting rod to work with the connecting plate to drive the two upper clamping plates to clamp the upper end of the transmission housing. The lower clamping plates one, two, and the upper clamping plates apply point pressure to the transmission housing, which occupies a small area on the surface of the transmission housing. This allows the grinding device to simultaneously grind the upper end, front end, right end, and rear end of the transmission housing, achieving processing of four surfaces at once. This eliminates the need for multiple disassemblies of the transmission housing during grinding, saving operation time and speeding up the grinding process. Attached Figure Description

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fixture body of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the second contour jig of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limiting seat of this utility model.

[0024] The following is a list of component names represented by the various reference numerals in the attached figures:

[0025] 10-Transmission housing;

[0026] 001-Jig body;

[0027] 100-First contouring base fixture, 110-Front-end contouring positioning guide post, 120-Lower clamping plate, 121-Positioning cylinder, 130-Contouring groove;

[0028] 200-Second contouring base fixture, 210-Second contouring groove, 220-Second lower clamping plate, 221-Second positioning cylinder, 230-Limiting plate, 240-Screw nut, 241-Threaded hole, 250-Limiting groove;

[0029] 300-Limit seat, 310-Base, 320-Upper clamping plate, 321-Connecting plate, 322-Reinforcing plate, 323-L-shaped connecting rod, 324-Positioning cylinder three, 330-Dust shielding plate, 331-L-shaped connecting plate, 332-Bolt one, 340-Reciprocating screw, 341-Handwheel, 350-Limiting sleeve, 360-Sealing plate, 361-Bolt two. Detailed Implementation

[0030] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0031] Please see Figure 1-Figure 4 This utility model provides a grinding fixture for automotive parts housings.

[0032] The fixture body 001 includes a fixture body for limiting the position of the transmission housing 10, and the fixture body 001 includes a limiting seat 300. A first contouring base fixture 100 for supporting the transmission housing 10 is fixedly installed on the upper end of the limiting seat 300, and a second contouring base fixture 200 is movably installed on the upper end of the first contouring base fixture 100.

[0033] The left side of the first contouring base fixture 100 is fixedly equipped with a front contouring positioning guide post 110 for limiting the left end of the transmission housing 10. The front end of the first contouring base fixture 100 is equipped with a lower clamping plate 120 for pushing the transmission housing 10. The front end of the lower clamping plate 120 is fixedly equipped with a positioning cylinder 121 for controlling the back-and-forth movement of the lower clamping plate 120, so as to clamp the transmission housing 10. The upper end of the first contouring base fixture 100 is machined with a contouring groove 130 for limiting the transmission housing 10.

[0034] The upper end of the second contouring base fixture 200 is machined with a second contouring groove 210 for limiting the position of the transmission housing 10 in conjunction with the first contouring groove 130. The front end of the second contouring base fixture 200 is equipped with a second lower clamping plate 220 for pushing the transmission housing 10. The front end of the second lower clamping plate 220 is fixedly equipped with a second positioning cylinder 221 for controlling the back-and-forth movement of the second lower clamping plate 220. The rear end of the second positioning cylinder 221 is fixedly equipped with a limiting plate 230 for limiting the position of the second positioning cylinder 221. The limiting plate 230 is an L-shaped block, and one end of the limiting plate 230 is installed on the right side of the second contouring base fixture 200.

[0035] The lower end of the second contour base fixture 200 is fixedly installed with a lead screw nut 240. The left side of the lead screw nut 240 is provided with multiple threaded holes 241. The bottom left side of the second contour base fixture 200 is provided with a limiting groove 250 for limiting the dust cover plate 330.

[0036] The limiting seat 300 includes a base 310. Two upper clamping plates 320 are mounted on the upper end of the base 310 to clamp the upper end of the transmission housing 10, and the two upper clamping plates 320 are installed in opposite directions. A connecting plate 321 is fixedly mounted on the left end of the upper clamping plate 320, and a reinforcing plate 322 is fixedly mounted on the right end of the connecting plate 321 to increase the mechanical strength of the upper clamping plate 320. An L-shaped connecting rod 323 is fixedly mounted on the left end of the connecting plate 321. A positioning cylinder 324 is fixedly mounted on one end of the L-shaped connecting rod 323 to control the forward and backward movement of the upper clamping plate 320. After the two positioning cylinders 324 are activated, they drive the two L-shaped connecting rods 323 to move closer together, simultaneously driving the connecting plate 321 and the upper clamping plate 320 to move closer together, thereby clamping the upper end of the transmission housing 10.

[0037] The limiting seat 300 includes a dust-blocking plate 330 for dust blocking. An L-shaped connecting plate 331 is fixedly installed on the right end of the dust-blocking plate 330. Multiple bolts 332 for limiting the L-shaped connecting plate 331 by engaging with threaded holes 241 are installed on the right end of the L-shaped connecting plate 331, so that the dust-blocking plate 330 is connected to the lead screw nut 240. When the second contour base fixture 200 moves left and right, it synchronously drives the dust-blocking plate 330 to move left and right. A groove for limiting the dust-blocking plate 330 is opened in the middle of the bottom end of the first contour base fixture 100.

[0038] A reciprocating lead screw 340, which works in conjunction with a lead screw nut 240 to control the left and right movement of the second contour base fixture 200, is installed at the middle of the right end of the base 310. A groove is provided at the middle of the right end of the base 310 for the reciprocating lead screw 340 to rotate, and the lead screw nut 240 slides within this groove. A handwheel 341 for rotating the reciprocating lead screw 340 is fixedly installed at the right end of the reciprocating lead screw 340. When the grinding device grinds the transmission housing 10, the grinding dust is less likely to fall into the groove where the reciprocating lead screw 340 is placed. When the handwheel 341 drives the reciprocating lead screw 340 to rotate, it works in conjunction with the lead screw nut 240 to control the distance between the second contour base fixture 200 and the first contour base fixture 100, facilitating the fixing of transmission housings 10 of different sizes.

[0039] A limiting sleeve 350 is installed at one end of the reciprocating screw 340 to limit the reciprocating screw 340. The limiting sleeve 350 facilitates the disassembly of the reciprocating screw 340. A sealing plate 360 ​​for limiting the reciprocating screw 340 is installed at the middle of the right end of the base 310. Multiple bolts 361 for limiting the sealing plate 360 ​​are installed on the edge of the sealing plate 360.

[0040] When polishing the transmission housing 10, the transmission housing 10 is placed in the grooves of contour groove 130 and contour groove 210. Positioning cylinders 121 and 221 are activated, causing the lower clamping plates 120 and 220 to push the transmission housing 10 synchronously, thereby pushing the transmission housing 10 to one side of the groove cavity of contour groove 130. Then, the two positioning cylinders 324 are activated, causing the L-shaped connecting rod 323 to work with the connecting plate 321 to drive the two upper clamping plates 320 to clamp the upper end of the transmission housing 10. The lower clamping plates 120, 220 and 320 and the upper clamping plates 320 apply point pressure to the transmission housing 10, which occupies a small area on the surface of the transmission housing 10, making it easy for the polishing device to polish the upper end, front end, right end and rear end of the transmission housing 10 simultaneously.

[0041] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A grinding fixture for automotive component housings, comprising a fixture body (001) for limiting the position of a transmission housing (10), characterized in that: The fixture body (001) includes a limiting seat (300), and a first contouring base fixture (100) and a second contouring base fixture (200) for supporting the transmission housing (10) are installed on the upper end of the limiting seat (300). The front end of the first contour base fixture (100) is equipped with a lower clamping plate (120) for pushing the transmission housing (10). The front end of the second contour base fixture (200) is equipped with a lower clamping plate (220) for pushing the transmission housing (10), and the lower end of the second contour base fixture (200) is equipped with a lead screw nut (240). The limiting seat (300) includes a base (310), and a reciprocating screw (340) is installed at the middle of the right end of the base (310) for cooperating with the screw nut (240) to control the second contour base fixture (200) to move left and right. The upper end of the base (310) is equipped with two upper clamping plates (320) for clamping the upper end of the transmission housing (10), and the limiting seat (300) includes a dust-blocking plate (330) for dust blocking.

2. The grinding fixture for automotive parts housings according to claim 1, characterized in that: The left side of the first contouring base fixture (100) is equipped with a front contouring positioning guide post (110) for limiting the left end of the transmission housing (10), and the front end of the lower clamping plate (120) is equipped with a positioning cylinder (121) for controlling the lower clamping plate (120) to move back and forth. The upper end of the first contouring base fixture (100) is machined with a contouring groove (130) for limiting the transmission housing (10).

3. The grinding fixture for automotive parts housings according to claim 1, characterized in that: The upper end of the second contour base fixture (200) is machined with a contour groove (210) for limiting the transmission housing (10).

4. The grinding fixture for automotive parts housings according to claim 1, characterized in that: The lower clamping plate 2 (220) is equipped with a positioning cylinder 2 (221) for controlling the lower clamping plate 2 (220) to move back and forth, and a limiting plate (230) for limiting the positioning cylinder 2 (221) is installed at the rear end of the positioning cylinder 2 (221).

5. A grinding fixture for automotive component housings according to claim 1, characterized in that: The lead screw nut (240) has multiple threaded holes (241) on its side, and the bottom left side of the second contour base fixture (200) has a limiting groove (250) for limiting the dust cover plate (330).

6. A grinding fixture for automotive component housings according to claim 1, characterized in that: A connecting plate (321) is installed on the left end of the upper clamping plate (320), and a reinforcing plate (322) for increasing the mechanical strength of the upper clamping plate (320) is installed on the right end of the connecting plate (321). An L-shaped connecting rod (323) is installed on the left end of the connecting plate (321), and a positioning cylinder (324) is installed at one end of the L-shaped connecting rod (323) for cooperating with the L-shaped connecting rod (323) to control the upper clamping plate (320) to move back and forth.

7. A grinding fixture for automotive component housings according to claim 1, characterized in that: An L-shaped connecting plate (331) is installed on the right end of the dust-shielding plate (330), and a plurality of bolts (332) are installed on the right end of the L-shaped connecting plate (331) to limit the L-shaped connecting plate (331) by engaging with the threaded hole (241).

8. A grinding fixture for automotive parts housings according to claim 1, characterized in that: The right end of the reciprocating screw (340) is equipped with a handwheel (341) for rotating the reciprocating screw (340). One end of the reciprocating screw (340) is equipped with a limiting sleeve (350) for limiting the reciprocating screw (340). The middle of the right end of the base (310) is equipped with a sealing plate (360) for limiting the reciprocating screw (340). The edge of the sealing plate (360) is equipped with a plurality of bolts (361) for limiting the sealing plate (360).

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