Pressure measurement detection device for automobile brake calipers

Abstract

The utility model discloses an automobile brake caliper pressure measurement detection device comprising a work bench, the work bench comprises a platform and a plurality of supporting legs, the plurality of supporting legs are respectively fixedly connected at four corners of the platform, the upper surface of the platform is provided with a clamping assembly for fixing a caliper, and the clamping assembly is provided with a clamping groove. A detection assembly for detecting the pressure of the calipers is arranged on the upper surface of the platform, the clamping assembly comprises a U-shaped seat, the U-shaped seat is fixedly connected to the upper surface of the platform, a guide column is fixedly connected into the U-shaped seat, and a first L-shaped clamping plate and a second L-shaped clamping plate are slidably connected to the outer side of the guide column. According to the utility model, manual operation and fixation by a worker are not needed, time is saved, work efficiency is improved, the stability of fixation of the brake calipers can be improved during detection, and the brake calipers can be blocked and limited front and back, so that the stability of fixation of the brake calipers can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive caliper testing technology, and in particular to a pressure testing device for automotive brake calipers. Background Technology

[0002] The brake caliper is the core component of the disc brake system. It is responsible for converting hydraulic energy into braking force to ensure the vehicle can safely decelerate or stop. It uses a piston to push the brake pads to clamp the brake disc under hydraulic pressure, thereby achieving deceleration, stopping, or maintaining a stopped state. Its internal structure includes components such as pistons, guide pins, and caliper arms to ensure rapid and stable braking response. After the brake caliper is manufactured, it needs to be pressure tested.

[0003] A search revealed a pressure testing device for automotive brake calipers, with publication number CN220398897U. This device includes a test bench with a mounting surface on its top. A mounting bracket and a testing bracket are vertically mounted on the mounting surface. However, when fixing the brake caliper, manual operation is required, which is cumbersome and reduces work efficiency. To better address these issues, promote the development of industry technology, and enhance core competitiveness, this application proposes a new structural design that differs from existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure testing device for automotive brake calipers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure testing device for automotive brake calipers includes a workbench comprising a platform and multiple support legs, the support legs being fixedly connected to the four corners of the platform. The upper surface of the platform is provided with a clamping assembly for fixing the caliper and a testing assembly for detecting the caliper pressure. The clamping assembly includes a U-shaped seat fixedly connected to the upper surface of the platform. A guide post is fixedly connected inside the U-shaped seat, and L-shaped clamping plates one and two are slidably connected to the outer side of the guide post. Two rotating shafts are rotatably connected to the upper surface of the platform via bearings. Large gears are keyed to the outer sides of both rotating shafts. One side of each of the L-shaped clamping plates one and two has a toothed groove that meshes with the large gear. Small gears are keyed to the outer sides of both rotating shafts. A mounting plate is fixedly connected to the upper surface of the platform. A self-locking hydraulic cylinder is fixedly connected to the top of the mounting plate. A connecting plate is fixedly connected to one end of the telescopic part of the self-locking hydraulic cylinder, and two racks that mesh with the small gears are fixedly connected to one side of the connecting plate.

[0007] As a further embodiment of this utility model, the detection component includes a U-shaped frame, which is fixedly connected to the upper surface of the platform. A threaded hole is provided at the top of the U-shaped frame, and a lead screw is threaded into the threaded hole. The bottom end of the lead screw is rotatably connected to a bearing plate through a bearing. Multiple pressure sensors are fixedly connected to both sides of the bearing plate.

[0008] As a further embodiment of this utility model, two sliding columns are fixedly connected to the top of the bearing plate, and the sliding columns pass through the U-shaped frame.

[0009] As a further embodiment of this utility model, both the L-shaped clamping plate one and the L-shaped clamping plate two are located inside the U-shaped frame.

[0010] As a further embodiment of this utility model, a plurality of positioning sleeves are fixedly connected to one side of the L-shaped clamping plate one, and a plurality of positioning rods are fixedly connected to the side of the L-shaped clamping plate two near the L-shaped clamping plate one.

[0011] As a further improvement of this utility model, the plurality of positioning rods correspond one-to-one with the plurality of positioning sleeves.

[0012] As a further embodiment of this utility model, two arc-shaped blocks are fixedly connected to the upper surface of the platform at the center of L-shaped clamping plate one and L-shaped clamping plate two.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By using the clamping assembly, when testing and fixing the brake caliper, the self-locking hydraulic cylinder can be activated to clamp the brake caliper, eliminating the need for manual operation by the operator, thus saving time and improving work efficiency.

[0015] 2. By using the positioning rod and positioning sleeve together, when the brake caliper is clamped and fixed by L-shaped clamping plate one and L-shaped clamping plate two, the positioning rod and positioning sleeve will pass through the positioning hole of the brake caliper and be connected to each other, thereby improving the stability of the brake caliper fixation during testing.

[0016] 3. By setting the arc-shaped block, when clamping and fixing the brake caliper, the arc-shaped block will block and limit the brake caliper in the front and back, thereby further improving the stability of fixing the brake caliper. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a pressure testing device for automotive brake calipers proposed in this utility model;

[0018] Figure 2 This is an enlarged structural diagram of the clamping assembly of a pressure testing device for automotive brake calipers proposed in this utility model;

[0019] Figure 3 This is an enlarged structural diagram of the detection component of a pressure testing device for automotive brake calipers proposed in this utility model.

[0020] In the diagram: 1. Workbench; 101. Platform; 102. Support leg; 2. Clamping assembly; 3. Detection assembly; 4. Arc-shaped block; 5. Mounting plate; 6. Self-locking hydraulic cylinder; 7. Rack; 8. Pinion; 9. Gear; 10. Rotating shaft; 12. L-shaped clamping plate one; 13. Guide column; 14. Positioning rod; 15. L-shaped clamping plate two; 16. Gear groove; 17. U-shaped seat; 18. Connecting plate; 19. U-shaped frame; 20. Pressure sensor; 21. Bearing plate; 22. Sliding column; 23. Lead screw; 24. Positioning sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-3A pressure testing device for automotive brake calipers includes a workbench 1, which comprises a platform 101 and multiple support legs 102. The support legs 102 are welded to the four corners of the platform 101. A clamping assembly 2 for fixing the caliper is provided on the upper surface of the platform 101. The clamping assembly 2 includes a U-shaped seat 17, which is fixed to the upper surface of the platform 101 by bolts. A guide post 13 is welded inside the U-shaped seat 17, and an L-shaped clamping plate 12 and an L-shaped clamping plate 13 are slidably connected to the outer side of the guide post 13. The upper surface of the L-shaped clamping plate 15 and platform 101 is rotatably connected to two rotating shafts 10 via bearings. Large gears 9 are keyed to the outer sides of both rotating shafts 10. One side of both L-shaped clamping plates 12 and 15 has toothed grooves 16 that mesh with the large gears 9. Small gears 8 are keyed to the outer sides of both rotating shafts 10. A mounting plate 5 is bolted to the upper surface of platform 101, and a self-locking hydraulic cylinder 6 (model HFG1504) is bolted to the top of mounting plate 5. One end of the telescopic part of the self-locking hydraulic cylinder 6 is fixed to a connecting plate 18 by bolts. Two racks 7 that mesh with the pinion 8 are welded to one side of the connecting plate 18. When it is necessary to clamp and fix the brake caliper, the self-locking hydraulic cylinder 6 is activated to retract. The self-locking hydraulic cylinder 6 will drive the two racks 7 to move through the connecting plate 18. The two racks 7 will drive the pinion 8 to rotate through meshing with it. The pinion 8 will drive the rotating shaft 10 to rotate. The rotating shaft 10 will drive the large gear 9 to rotate. The large gear 9 will then... The engagement with the toothed groove 16 will cause the L-shaped clamping plate 12 and the L-shaped clamping plate 2 to move towards each other, thereby clamping and fixing the brake caliper with the L-shaped clamping plate 12 and the L-shaped clamping plate 2. This eliminates the need for manual operation by the operator, saving time and improving work efficiency. At the same time, the self-locking function of the self-locking hydraulic cylinder 6 can fix the position of the L-shaped clamping plate 12 and the L-shaped clamping plate 2, preventing them from moving when clamping the brake caliper.

[0023] In this invention, the upper surface of the platform 101 is provided with a detection component 3 for detecting caliper pressure. The detection component 3 includes a U-shaped frame 19, which is fixed to the upper surface of the platform 101 by bolts. A threaded hole is opened at the top of the U-shaped frame 19, and a lead screw 23 is threaded into the threaded hole. The bottom end of the lead screw 23 is rotatably connected to a bearing plate 21 through a bearing. Multiple pressure sensors 20 are fixed to both sides of the bearing plate 21 by bolts. The pressure sensor 20 is model JYB-KB-CW-2000. The top of the bearing plate 21... The part is fixed with two sliding columns 22 by bolts, and the sliding columns 22 pass through the U-shaped frame 19. The L-shaped clamp 12 and the L-shaped clamp 25 are both located inside the U-shaped frame 19. When it is necessary to detect the pressure of the brake caliper, the screw 23 is rotated. The screw 23 will push the bearing plate 21 to move vertically downward under the action of the sliding columns 22 through the thread engagement with the threaded hole, so that the bearing plate 21 enters the brake caliper groove. Then the brake caliper applies pressure to the bearing plate 21, so that the pressure of the caliper can be detected by the pressure sensor 20.

[0024] In particular, multiple positioning sleeves 24 are welded to one side of L-shaped clamp 12, and multiple positioning rods 14 are welded to the side of L-shaped clamp 15 near L-shaped clamp 12. Each positioning rod 14 corresponds to one of the positioning sleeves 24. When L-shaped clamp 12 and L-shaped clamp 15 clamp and fix the brake caliper, the positioning rods 14 and positioning sleeves 24 penetrate the positioning holes of the brake caliper and are connected to each other, thereby improving the stability of the brake caliper fixation during testing. The upper surface of platform 101 is located at the center of L-shaped clamp 12 and L-shaped clamp 15. The position is fixed by two arc-shaped blocks 4 with bolts. When placing the brake caliper, the brake caliper is placed on the two arc-shaped blocks 4. At this time, when the L-shaped clamping plate 12 and L-shaped clamping plate 25 clamp and fix the brake caliper, the arc-shaped blocks 4 will limit the front and rear movement of the brake caliper, thereby further improving the stability of fixing the brake caliper. Since the L-shaped clamping plate 12 and L-shaped clamping plate 25 move synchronously, the brake caliper is ensured to be in the center position when clamping the brake caliper, and the center of the brake caliper is aligned vertically with the center of the bearing plate 21.

[0025] Working principle: When needed, the brake caliper is placed between the two arc-shaped blocks 4. Then, the self-locking hydraulic cylinder 6 is activated to retract. The self-locking hydraulic cylinder 6 drives the two racks 7 to move via the connecting plate 18. The two racks 7 mesh with the pinion 8, causing the pinion 8 to rotate. The pinion 8 drives the rotating shaft 10 to rotate, which in turn drives the large gear 9. The large gear 9 meshes with the toothed groove 16, causing the L-shaped clamping plates 12 and 15 to move towards each other. This clamps and secures the brake caliper, eliminating the need for manual operation and saving time, thus improving work efficiency. Simultaneously, the self-locking function of the self-locking hydraulic cylinder 6 fixes the position of the L-shaped clamping plates 12 and 15, preventing... When L-shaped clamp 12 and L-shaped clamp 25 clamp the brake caliper, they move. While clamping and fixing the brake caliper, the positioning rod 14 and positioning sleeve 24 pass through the positioning hole of the brake caliper and are connected to each other, thereby improving the stability of fixing the brake caliper during testing. At the same time, the arc-shaped block 4 limits the front and rear movement of the brake caliper, which further improves the stability of fixing the brake caliper. Then, the lead screw 23 is rotated. The lead screw 23, through thread engagement with the threaded hole, pushes the bearing plate 21 to move vertically downward under the action of the sliding column 22, so that the bearing plate 21 enters the brake caliper groove. Then, the brake caliper applies pressure to the bearing plate 21, and the pressure of the caliper can be detected by the pressure sensor 20.

[0026] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure testing device for automotive brake calipers, comprising a workbench (1), the workbench (1) comprising a platform (101) and a plurality of support legs (102), the plurality of support legs (102) being respectively fixedly connected to the four corners of the platform (101), characterized in that, The upper surface of the platform (101) is provided with a clamping assembly (2) for fixing the caliper, and a detection assembly (3) for detecting the caliper pressure. The clamping assembly (2) includes a U-shaped seat (17), which is fixedly connected to the upper surface of the platform (101). A guide post (13) is fixedly connected inside the U-shaped seat (17), and an L-shaped clamping plate (12) and an L-shaped clamping plate (15) are slidably connected to the outside of the guide post (13). The upper surface of the platform (101) is rotatably connected to two rotating shafts (10) via bearings. A large gear (9) is keyed to the outer side of each of the rotating shafts (10). One side of each of the L-shaped clamps (12) and L-shaped clamps (15) is provided with a tooth groove (16) that meshes with the large gear (9). A small gear (8) is keyed to the outer side of each of the two rotating shafts (10). An installation plate (5) is fixedly connected to the upper surface of the platform (101). A self-locking hydraulic cylinder (6) is fixedly connected to the top of the installation plate (5). A connecting plate (18) is fixedly connected to one end of the telescopic part of the self-locking hydraulic cylinder (6). Two racks (7) that mesh with the small gear (8) are fixedly connected to one side of the connecting plate (18).

2. The pressure testing device for automotive brake calipers according to claim 1, characterized in that, The detection component (3) includes a U-shaped frame (19), which is fixedly connected to the upper surface of the platform (101). The top of the U-shaped frame (19) is provided with a threaded hole, and a lead screw (23) is threadedly connected inside the threaded hole. The bottom end of the lead screw (23) is rotatably connected to a bearing plate (21) through a bearing. Multiple pressure sensors (20) are fixedly connected to both sides of the bearing plate (21).

3. The pressure testing device for automotive brake calipers according to claim 2, characterized in that, The top of the bearing plate (21) is fixedly connected to two sliding columns (22), and the sliding columns (22) pass through the U-shaped frame (19).

4. The pressure testing device for automotive brake calipers according to claim 3, characterized in that, Both the L-shaped clamp one (12) and the L-shaped clamp two (15) are located inside the U-shaped frame (19).

5. The pressure testing device for automotive brake calipers according to claim 4, characterized in that, Multiple positioning sleeves (24) are fixedly connected to one side of the L-shaped clamping plate one (12), and multiple positioning rods (14) are fixedly connected to the side of the L-shaped clamping plate two (15) near the L-shaped clamping plate one (12).

6. The pressure testing device for automotive brake calipers according to claim 5, characterized in that, Each of the positioning rods (14) corresponds to a positioning sleeve (24).

7. The pressure testing device for automotive brake calipers according to claim 1, characterized in that, Two arc-shaped blocks (4) are fixedly connected to the upper surface of the platform (101) at the center of L-shaped clamping plate one (12) and L-shaped clamping plate two (15).

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