Brake caliper assembly assembling low-pressure sealing performance detection tool

Abstract

The utility model discloses a brake caliper assembly assembling low-pressure sealing performance detection tool, which relates to the brake caliper detection field, and comprises a support bottom plate and a cylinder, one side of the support bottom plate is provided with a support vertical plate, the cylinder is arranged on the other side of the support bottom plate through a cylinder seat, and a piston rod of the cylinder is connected with a pressure head; the supporting vertical plate is used for supporting the brake caliper, the inner side of the caliper foot face of the brake caliper abuts against the pressing head, and meanwhile the cylinder hole end face of the brake caliper is attached to the outer end face of the supporting vertical plate. The brake caliper low-pressure air tightness detection tool solves the problems that the feeding speed of brake caliper low-pressure air tightness detection is low, and the machined surface of the caliper body is damaged by collision of the detected feeding part, realizes the generalization of the detection tool, improves the production efficiency, and greatly guarantees the quality of parts.

Description

Technical Field

[0001] This utility model relates to the field of brake caliper testing, specifically to a tooling for testing the low-pressure sealing performance of a brake caliper assembly. Background Technology

[0002] Brake caliper assemblies are critical safety components in automobiles, and their assembly process requires 100% inspection of the sealing performance of the caliper body, cylinder bore, and piston after installation. Currently, low-pressure sealing testing uses an iron block instead of a friction block to obstruct the piston stroke with the thickness of the brake disc, resulting in slow testing speed.

[0003] Existing brake caliper inspection fixtures use thick, heavy metal blocks, which are inconvenient for installation and inspection. Furthermore, during mass production line inspections of brake calipers, inserting these blocks into the test pieces can easily cause scratches on the machined surfaces of the caliper body, posing a risk of incomplete contact between the brake pads and the disc during braking. Additionally, each brake caliper product requires a different thickness of metal block for the fixture. The improved inspection fixture is now universal, allowing for convenient and rapid loading and unloading of parts, and effectively preventing scratches during inspection. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a low-pressure sealing test fixture for brake caliper assembly. This solves the problems of slow loading of brake caliper parts for low-pressure airtightness testing and damage to the machined surface of the caliper body caused by bumping the loading parts. At the same time, it realizes the universality of the test fixture, improves production efficiency, and greatly ensures the quality of parts.

[0005] The purpose of this utility model is achieved through the following technical solution: This brake caliper assembly low-pressure sealing test fixture includes a support base plate and a cylinder. A support vertical plate is installed on one side of the support base plate, and the cylinder is installed on the other side of the support base plate through a cylinder seat. A pressure head is connected to the piston rod of the cylinder. The support vertical plate is used to support the brake caliper, so that the inner side of the caliper foot face abuts against the pressure head. At the same time, the cylinder bore end face of the brake caliper is in contact with the outer end face of the support vertical plate.

[0006] As a further technical solution, auxiliary plates are installed on both sides of the outer end face of the support vertical plate, and the two ear holes of the brake caliper are placed on the corresponding auxiliary plates.

[0007] As a further technical solution, the cylinder is a double-acting cylinder and is provided with a first air inlet and a second air inlet.

[0008] As a further technical solution, the oil inlet of the brake caliper is used to connect an external low-pressure quick-connect connector to connect the test air source, and in conjunction with a low-pressure leak tester, to achieve low-pressure airtightness testing.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. The caliper foot face of the brake caliper rests against the pressure head, while the cylinder bore end face rests against the outer end face of the support vertical plate, positioning and clamping the entire brake caliper. This is suitable for low-pressure sealing testing during brake caliper product assembly. The positioning fixture has a simple structure, is easy to manufacture, has low manufacturing cost, and is highly versatile.

[0011] 2. With the cooperation of a double-acting cylinder, it can efficiently and accurately complete the positioning of brake caliper air tightness test without damaging the brake caliper foot surface, meet the cycle time requirements for 100% online testing of brake caliper low-pressure sealing, and effectively ensure the testing requirements of key product characteristics during assembly process;

[0012] 3. The lugs on both sides of the brake caliper are supported by an auxiliary plate to prevent shaking during testing and improve stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the present invention after assembly with the brake caliper.

[0016] Explanation of reference numerals in the attached drawings: 1. Support base plate; 2. Support vertical plate; 3. Auxiliary plate; 4. Pressure head; 5. Piston rod; 6. Cylinder seat; 7. Cylinder; 8. First air inlet; 9. Second air inlet; 10. Brake caliper; 11. Caliper foot face; 12. Cylinder bore; 13. Ear hole; 14. Oil inlet. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings:

[0018] Example: As attached Figures 1-3 As shown, this brake caliper assembly assembly low-pressure sealing test fixture includes a support base plate 1, a support vertical plate 2, an auxiliary plate 3, a pressure head 4, a piston rod 5, a cylinder seat 6, a cylinder 7, a first air inlet 8, a second air inlet 9, a brake caliper 10, a caliper foot face 11, a cylinder bore 12, an ear hole 13, and an oil inlet hole 14.

[0019] Reference Appendix Figure 1 , 2 A support vertical plate 2 is bolted to the right side of the support base plate 1. The cylinder 7 is mounted on the left side of the support base plate 1 via a cylinder seat 6 (and fixing bolts). A pressure head 4 is connected to the piston rod 5 of the cylinder 7. The support vertical plate 2 supports the entire brake caliper 10 and makes the inner side of the caliper foot surface 11 of the brake caliper 10 abut against the pressure head 4. At the same time, the end face of the cylinder bore 12 of the brake caliper 10 is in contact with the outer end face of the support vertical plate 2.

[0020] Preferably, an auxiliary plate 3 is bolted to both sides of the outer end face of the supporting vertical plate 2, and the ear holes 13 on both sides of the brake caliper 10 rest on the corresponding auxiliary plate 3 for support. Furthermore, the cylinder 7 is a double-acting cylinder and is provided with a first air inlet 8 and a second air inlet 9.

[0021] Furthermore, the oil inlet 14 of the brake caliper 10 is used to connect a low-pressure quick-connect connector to connect the test air source, and in conjunction with a low-pressure leak tester, to achieve low-pressure airtightness testing.

[0022] The working process of this utility model:

[0023] 1. Before testing, follow the instructions. Figure 1 , 2 As shown, after the tooling is assembled, ensure that the pipeline air source valve of the first air inlet 8 is opened, so that the piston rod 5 and the nylon pressure head 4 can extend.

[0024] 2. Place the brake caliper 10 product to be tested on the support vertical plate 2, so that the pressure head 4 is placed inside the caliper foot face 11 of the brake caliper 10, and at the same time, the end face of the cylinder hole 12 of the brake caliper 10 is in contact with the outer end face of the support vertical plate 2, and place the two ear holes 13 of the brake caliper 10 on the auxiliary plate 3.

[0025] 3. Then, open the pipeline air source valve switch of the second air inlet 9 to retract the piston rod 5 and the pressure head 4, pressing against the caliper foot surface 11 of the brake caliper 10;

[0026] 4. Install a low-pressure quick-connect fitting at the oil inlet 14 of the brake caliper 10 and connect it to the test air source;

[0027] 5. Start the low-pressure leak tester and perform low-pressure airtightness testing as required;

[0028] 6. After the test is completed, remove the low-pressure quick-connect connector, open the pipeline air source valve switch of the first air inlet 8, release the pressure head 4, and remove the brake caliper 10 product.

[0029] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A low-pressure sealing test fixture for brake caliper assembly, characterized in that: The system includes a support base plate (1) and a cylinder (7). A support vertical plate (2) is installed on one side of the support base plate (1), and the cylinder (7) is installed on the other side of the support base plate (1) via a cylinder seat (6). A pressure head (4) is connected to the piston rod (5) of the cylinder (7). The support vertical plate (2) is used to support the brake caliper (10), so that the inner side of the caliper foot surface (11) of the brake caliper (10) abuts against the pressure head (4). At the same time, the end face of the cylinder bore (12) of the brake caliper (10) is in contact with the outer end face of the support vertical plate (2).

2. The brake caliper assembly low-pressure sealing test fixture according to claim 1, characterized in that: The outer end face of the support plate (2) is equipped with auxiliary plates (3) on both sides, and the ear holes (13) on both sides of the brake caliper (10) rest on the corresponding auxiliary plates (3).

3. The brake caliper assembly low-pressure sealing test fixture according to claim 1, characterized in that: The cylinder (7) is a double-acting cylinder and is provided with a first air inlet (8) and a second air inlet (9).

4. The brake caliper assembly low-pressure sealing test fixture according to claim 1, characterized in that: The oil inlet (14) of the brake caliper (10) is used to connect a low-pressure quick-connect connector to connect the test air source and cooperate with the low-pressure leak tester to realize the low-pressure air tightness test.

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