Automobile brake main cylinder body machining clamp with flange self-cleaning function

Abstract

The utility model relates to an automotive brake main cylinder body machining clamp with a flange self-cleaning function, and belongs to automotive brake main cylinder body machining tools. Comprising a clamp bottom plate, a clamp front supporting plate, a clamp rear supporting plate and a jacking air cylinder, a self-cleaning flange clamping air cylinder is fixedly connected to the outer side of the clamp front supporting plate, a self-cleaning flange is fixedly connected to the inner side of the clamp front supporting plate through a positioning pin, and the self-cleaning flange and the clamp front supporting plate are clamped through a T-shaped air cylinder rod of the self-cleaning flange clamping air cylinder. The self-cleaning air injection positioning sleeve has the advantages that the self-cleaning air injection positioning sleeve is novel in structure, high-pressure air can be introduced into the self-cleaning flange and sprayed out from the end face of the self-cleaning air injection positioning sleeve, the end face of the self-cleaning air injection positioning sleeve can be cleaned, meanwhile, the end face of a flange plate of a main cylinder body before machining can be cleaned, namely aluminum skimmings adhered to the end face of the self-cleaning flange and impurities on the flange face of a workpiece are blown away, and machining efficiency is improved. Therefore, the purpose of cleaning the positioning surface is achieved, accurate positioning during machining is guaranteed, the product percent of pass is improved, and normal production progress is guaranteed.

Description

Technical Field

[0001] The utility model belongs to a processing fixture for the master cylinder body of an automotive brake, and particularly relates to a processing fixture for the master cylinder body of an automotive brake with a self-cleaning flange function. Background Art

[0002] Currently, when machining the master cylinder body of an automotive brake, the fixture uses the positioning flange of the fixture for the head of the master cylinder body for positioning. Since the aluminum chips generated during the machining process adhere to the end face of the positioning flange of the fixture, there is always a situation where the operator cannot clean the flange face thoroughly. At the same time, there are also impurities on the end face of the flange of some machined master cylinder bodies. This causes inaccurate positioning of the workpiece during machining, resulting in defective products, which not only affects the production progress but also brings cost losses. Summary of the Invention

[0003] The utility model provides a processing fixture for the master cylinder body of an automotive brake with a self-cleaning flange function to solve the problem that the positioning flange face of the fixture cannot be cleaned thoroughly, resulting in inaccurate positioning of the workpiece during machining and thus defective products.

[0004] The technical solution adopted by the utility model is as follows: it includes a fixture bottom plate, a fixture front support plate, a fixture rear support plate, and a tightening cylinder. The self-cleaning flange clamping cylinder is fixedly connected to the outside of the fixture front support plate. The self-cleaning flange is fixedly connected to the inside of the fixture front support plate through a positioning pin, and the self-cleaning flange is clamped with the fixture front support plate through the T-shaped cylinder rod of the self-cleaning flange clamping cylinder.

[0005] The bottom parts of the fixture front support plate and the fixture rear support plate are respectively fixedly connected to the upper surface of the fixture bottom plate, and the tightening cylinder is fixedly connected to the fixture rear support plate.

[0006] The self-cleaning flange clamping cylinder includes a T-shaped cylinder rod and a cylinder body. The cylinder body is fixedly connected to the outside of the fixture front support plate, and the T-shaped cylinder rod is used to clamp the self-cleaning flange with the fixture front support plate.

[0007] The self-cleaning flange includes a self-cleaning air inlet flange plate and a self-cleaning air jet positioning sleeve. The self-cleaning air jet positioning sleeve is hooked to the self-cleaning air inlet flange plate, and there is an air passage between the self-cleaning air inlet flange plate and the self-cleaning air jet positioning sleeve.

[0008] The self-cleaning air inlet flange plate includes an air inlet nozzle, a gas flow channel, a positioning pin hole, and a plate body. The air inlet nozzle is located at the edge of the plate body, the gas flow channel is located inside the plate body, the air inlet nozzle is communicated with the gas flow channel, and there are two positioning pin holes on the plate body for connecting the positioning pin.

[0009] The self-cleaning air jet positioning sleeve includes an end face air outlet hole, a bottom strip hole, a plate body fixing hook, and a sleeve body. There is a bottom strip hole on the bottom surface of the sleeve body, an end face air outlet hole on the upper surface of the sleeve body, and a plate body fixing hook on the side of the upper part of the sleeve body.

[0010] The disk body fixing hook is crimped with the self-cleaning intake flange.

[0011] The width of the bottom strip-shaped hole is smaller than the length of the head of the T-shaped cylinder rod of the self-cleaning flange clamping cylinder, and the bottom of the self-cleaning jet positioning sleeve is pressed by the head of the T-shaped cylinder rod.

[0012] The advantages of the present utility model are novel structure. The self-cleaning flange adopted includes a self-cleaning intake flange and a self-cleaning jet positioning sleeve. High-pressure air can be introduced into the self-cleaning flange and ejected from the end face of the self-cleaning jet positioning sleeve, which can clean the end face of the self-cleaning jet positioning sleeve. At the same time, it can also clean the end face of the main cylinder body flange before processing, that is, blow away the aluminum chips sticking to the end face of the self-cleaning flange and the impurities on the workpiece flange surface, achieving the purpose of cleaning the positioning surface, thereby ensuring accurate positioning during processing, improving the product qualification rate, and ensuring the normal progress of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the self-cleaning flange of the present utility model;

[0015] Figure 3 is Figure 2 the A-A cross-sectional view of, and the arrow direction in the figure is the direction of high-pressure air inlet and outlet;

[0016] Figure 4 is a schematic structural diagram of the self-cleaning jet positioning sleeve of the present utility model;

[0017] Figure 5 is Figure 4 the B-B cross-sectional view of;

[0018] Figure 6 is a schematic structural diagram of the self-cleaning flange clamping cylinder of the present utility model;

[0019] Figure 7 is a schematic structural diagram of the self-cleaning flange clamping cylinder clamping the self-cleaning flange of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] As Figure 1 shown, it includes a fixture bottom plate 1, a fixture front support plate 2, a fixture rear support plate 3, and a jacking cylinder 4. The self-cleaning flange clamping cylinder 6 is fixedly connected to the outside of the fixture front support plate 2. The self-cleaning flange 7 is fixedly connected to the inside of the fixture front support plate 2 through a positioning pin 5, and the self-cleaning flange 7 is clamped with the fixture front support plate 2 through the T-shaped cylinder rod of the self-cleaning flange clamping cylinder 6.

[0021] The bottoms of the fixture front support plate 2 and the fixture rear support plate 3 are respectively fixedly connected to the upper surface of the fixture bottom plate 1, and the jacking cylinder 4 is fixedly connected to the fixture rear support plate 3.

[0022] As Figure 6 shown, the self-cleaning flange clamping cylinder 6 includes a T-shaped cylinder rod 601 and a cylinder block 602, wherein the cylinder block 602 is fixedly connected to the outside of the front support plate 2 of the fixture, and the T-shaped cylinder rod 601 is used to clamp the self-cleaning flange 7 and the front support plate 2 of the fixture.

[0023] As Figure 2 、 3 shown, the self-cleaning flange 7 includes a self-cleaning intake flange plate 701 and a self-cleaning jet positioning sleeve 702, wherein the self-cleaning jet positioning sleeve 702 is hooked to the self-cleaning intake flange plate 701, and there is an air passage between the self-cleaning intake flange plate 701 and the self-cleaning jet positioning sleeve 702.

[0024] As Figure 2 、 3 shown, the self-cleaning intake flange plate 701 includes an intake nozzle 70101, a gas flow passage 70102, a positioning pin hole 70103, and a disk body 70104. The intake nozzle 70101 is located at the edge of the disk body 70104, the gas flow passage 70102 is located inside the disk body 70104, the intake nozzle 70101 is communicated with the gas flow passage 70102, and there are two positioning pin holes 70103 on the disk body 70104 for connecting the positioning pin 5.

[0025] As Figure 4 、 5 shown, the self-cleaning jet positioning sleeve 702 includes an end face air outlet hole 70201, a bottom strip hole 70202, a disk body fixing hook 70203, and a sleeve body 70204. The bottom strip hole 70202 is located on the bottom surface of the sleeve body 70204, the end face air outlet hole 70201 is located on the upper surface of the sleeve body 70204, and the disk body fixing hook 70203 is located on the upper side of the upper part of the sleeve body 70204.

[0026] As Figure 7 shown, the disk body fixing hook 70203 is crimped to the self-cleaning intake flange plate 701.

[0027] As Figure 7 shown, the width of the bottom strip hole 70202 is smaller than the length of the head of the T-shaped cylinder rod 601 of the self-cleaning flange clamping cylinder 6, and the bottom of the self-cleaning jet positioning sleeve 702 is pressed by the head of the T-shaped cylinder rod 601.

[0028] During installation, insert the head of the T-shaped cylinder rod 601 from the bottom strip hole 70202 into the bottom of the self-cleaning jet positioning sleeve 702. Then rotate the head of the T-shaped cylinder rod 601 by 90 degrees. Since the length of the head of the T-shaped cylinder rod 601 is greater than the width of the bottom strip hole 70202, after the self-cleaning flange clamping cylinder 6 contracts the T-shaped cylinder rod 601, its head presses tightly against the bottom of the self-cleaning jet positioning sleeve 702. Since the disk body fixing hook 70203 of the self-cleaning jet positioning sleeve 702 hooks the self-cleaning intake flange 701, the self-cleaning intake flange 701 is pressed tightly against the inner side of the fixture front support plate 2, that is, the self-cleaning flange 7 is clamped against the inner side of the fixture front support plate 2.

[0029] Working principle

[0030] After positioning the end face of the master cylinder flange of the automotive brake master cylinder body 8 with the positioning pin 5, it contacts the end face of the self-cleaning jet positioning sleeve 702 of the self-cleaning flange 7. Pass high-pressure gas through the air inlet nozzle 70101 of the self-cleaning intake flange 701 of the self-cleaning flange 7, and it sprays out from the end face air holes 70201 of the self-cleaning jet positioning sleeve 702 through the gas flow channel 70102 to clean the end face of the self-cleaning jet positioning sleeve and the end face of the master cylinder flange, achieving the purpose of removing aluminum chips on them. Then use the tightening cylinder 4 to fix the master cylinder to the fixture and enter the machining process.

Claims

1. A processing fixture for the master cylinder body of an automotive brake with a self-cleaning flange function, comprising a fixture base plate, a fixture front support plate, a fixture rear support plate, and a tightening cylinder, characterized in that: The self-cleaning flange clamping cylinder is fixedly connected to the outside of the front support plate of the fixture. The self-cleaning flange is fixedly connected to the inside of the front support plate of the fixture through a positioning pin. The self-cleaning flange is clamped to the front support plate of the fixture by the T-shaped cylinder rod of the self-cleaning flange clamping cylinder. The self-cleaning flange includes a self-cleaning air inlet flange plate and a self-cleaning jet positioning sleeve. The self-cleaning jet positioning sleeve is hooked to the self-cleaning air inlet flange plate, and there is an air passage between the self-cleaning air inlet flange plate and the self-cleaning jet positioning sleeve.

2. The machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function according to claim 1, characterized in that: The bottoms of the front support plate and the rear support plate of the fixture are respectively fixedly connected to the upper surface of the fixture bottom plate, and the tightening cylinder is fixedly connected to the rear support plate of the fixture.

3. The machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function according to claim 1, characterized in that: The self-cleaning flange clamping cylinder includes a T-shaped cylinder rod and a cylinder body. The cylinder body is fixedly connected to the outside of the front support plate of the fixture, and the T-shaped cylinder rod is used to clamp the self-cleaning flange to the front support plate of the fixture.

4. The machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function according to claim 1, characterized in that: The self-cleaning air inlet flange plate includes an air inlet nozzle, a gas flow channel, a positioning pin hole, and a plate body. The air inlet nozzle is located at the edge of the plate body, the gas flow channel is located inside the plate body, the air inlet nozzle is communicated with the gas flow channel, and there are two positioning pin holes on the plate body for connecting the positioning pins.

5. The machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function according to claim 1, wherein: The self-cleaning jet positioning sleeve includes an end face air outlet hole, a bottom strip hole, a plate body fixing hook, and a sleeve body. The bottom surface of the sleeve body has a bottom strip hole, the upper surface of the sleeve body has an end face air outlet hole, and the upper side of the sleeve body has a plate body fixing hook.

6. The machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function according to claim 5, characterized in that: The plate body fixing hook is crimped to the self-cleaning air inlet flange plate.

7. A machining fixture for the master cylinder body of an automotive brake with a self-cleaning flange function as claimed in claim 5, characterized in that: The width of the bottom strip hole is smaller than the length of the head of the T-shaped cylinder rod of the self-cleaning flange clamping cylinder, and the bottom of the self-cleaning jet positioning sleeve is pressed by the head of the T-shaped cylinder rod.

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