A floating mechanism for testing the clamping force of a caliper

Abstract

The present invention discloses a floating mechanism for testing the clamping force of a caliper, which relates to the technical field of automobile parts testing mechanisms, and aims to solve the problem that when testing the clamping force, it is inconvenient to perform automatic operation because the sensor needs to be placed manually. The key points of the technical solution are as follows: the test assembly, a fixed plate, and a mounting frame for mounting the test assembly located below the fixed plate, a plurality of first equi-height screws are arranged between the fixed plate and the mounting frame, and each first equi-height screw is sleeved with a spring 1; the test assembly includes a pressure sensor bottom plate connected to the mounting frame, a pressure sensor top plate parallel to the pressure sensor bottom plate, and a pressure sensor is arranged between the pressure sensor bottom plate and the pressure sensor top plate. The first equi-height screws and the spring 1 allow the entire clamping force test fixture to shake slightly within the range of covering the assembly tolerance and the processing tolerance inside the caliper, eliminating the need for alignment steps of the automatic placement sensor fixture, and automating the clamping to improve the test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts testing mechanisms, in particular to a caliper clamping force testing floating mechanism. Background Art

[0002] When testing the clamping force of an EMB caliper, the pressure sensor is manually suspended and lowered in the air, and then the motor rotates to drive the thrust plate to push the pressure sensor to the fixed surface of the product for testing. This requires manual placement and is not convenient for automatic operation.

[0003] The existing design usually uses two guide rods to guide the bottom plate and top plate of the pressure sensor. Due to deviations in product assembly accuracy and processing accuracy, the thrust plate and the product brake pad back plate are not parallel. When the thrust plate and the product brake pad are not parallel, the bottom plate and top plate of the sensor may be stuck on the guide rods. If sticking occurs, the clamping force of the caliper will cause serious damage to the tooling, so further improvement is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a floating mechanism for testing the clamping force of a caliper, which has the effects of automatic clamping and self-resetting to ensure no collision.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A floating mechanism for testing the clamping force of a caliper comprises a test assembly, a fixed plate, and a mounting frame for mounting the test assembly, which is located below the fixed plate and parallel to the fixed plate; a plurality of first equal-height screws are arranged in a rectangular array between the fixed plate and the mounting frame, and each of the first equal-height screws is sleeved with a spring located between the fixed plate and the mounting frame; the test assembly comprises a pressure sensor bottom plate connected to the mounting frame, and a pressure sensor top plate parallel to the pressure sensor bottom plate; a pressure sensor is arranged between the pressure sensor bottom plate and the pressure sensor top plate.

[0007] The present invention is further configured as follows: a support plate 1 parallel to the pressure sensor base plate is provided on the mounting frame, a second height screw is passed through the support plate 1, the second height screw passes through the support plate 1 and is threadedly connected to the pressure sensor base plate, and a spring 2 located between the support plate 1 and the pressure sensor base plate is sleeved on the second height screw.

[0008] The present invention is further configured as follows: a plurality of the second equal height screws are arranged in parallel.

[0009] The present invention is further configured as follows: a reset component for pushing the top plate of the pressure sensor back to an initial position is arranged on the side of the mounting frame.

[0010] The present invention is further configured as follows: the reset assembly comprises a reset cylinder fixed on the side of the mounting frame, and the driving end of the reset cylinder abuts against the side of the top plate of the pressure sensor.

[0011] The present invention is further configured as follows: a guide assembly is provided on the top surface of the mounting frame for moving the pressure sensor top plate and the pressure sensor bottom plate along the length direction of the mounting frame.

[0012] The present invention is further configured as follows: the guide assembly includes a linear slide rail arranged on the top surface of the mounting frame along the length direction of the mounting frame, and a slider 1 is arranged on the bottom surface of the support plate 1 and is engaged with the linear slide rail.

[0013] The present invention is further configured as follows: a second support plate parallel to the top plate of the pressure sensor is provided on the mounting frame, the second support plate is fixedly connected to the top plate of the pressure sensor, and a second slider engaged with the linear slide rail is provided on the bottom surface of the second support plate.

[0014] In summary, the beneficial technical effects of the present invention are:

[0015] 1. Through the setting of the first height screw and the spring 1, the first height screw and the spring 1 allow the entire clamping force test fixture to swing slightly inside the caliper within the range of the assembly tolerance and the processing tolerance, eliminating the need to align the automatic placement sensor fixture, and automating the clamping to improve the test efficiency;

[0016] 2. Through the setting of the second height screw and the second spring, the second height screw and the second spring allow the bottom plate of the pressure sensor to shake, preventing the thrust plate and the brake pad back plate from sliding and getting stuck when they are not parallel;

[0017] 3. Through the setting of the reset cylinder, the reset cylinder is used to push the pressure sensor bottom plate and the pressure sensor top plate to the initial position to avoid collision with the EMB product caliper during the next automated test, so as to achieve no external force interference during the test process, and self-reset to ensure no collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the explosion structure of an embodiment of the present invention.

[0021] In the figure, 1. fixing plate; 2. mounting frame; 21. support plate 1; 22. support plate 2; 3. first height screw; 31. spring 1; 4. pressure sensor; 41. pressure sensor top plate; 42. pressure sensor bottom plate; 5. second height screw; 51. spring 2; 6. reset cylinder; 7. linear guide rail; 71. slider 1; 72. slider 2. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] Reference Figure 1 and Figure 2 , which is a floating mechanism for clamping force testing of a caliper disclosed in the present invention, comprises a test assembly, a fixing plate 1, a mounting frame 2 for mounting the test assembly, which is located below the fixing plate 1 and parallel to the fixing plate 1, and four first equi-height screws 3 are arranged in a rectangular array between the fixing plate 1 and the mounting frame 2, and the first equi-height screws 3 are screwed to the mounting frame 2 after passing through the fixing plate 1. A spring 1 31 located between the fixing plate 1 and the mounting frame 2 is sleeved on each first equi-height screw 3. When the first equi-height screw 3 and the spring 1 31 are in action, the entire clamping force testing tooling can be slightly shaken inside the caliper within the range covering the assembly tolerance and the processing tolerance, thereby solving the problem of alignment of the automatic placement sensor tooling.

[0024] Reference Figure 1 and Figure 2 The test assembly includes a pressure sensor bottom plate 42 connected to the mounting frame 2, a pressure sensor top plate 41 parallel to the pressure sensor bottom plate 42, and a pressure sensor 4 is arranged between the pressure sensor bottom plate 42 and the pressure sensor top plate 41. The mounting frame 2 is provided with a support plate 1 21 parallel to the pressure sensor bottom plate 42, and a second height screw 5 is penetrated on the support plate 1 21, and the second height screw 5 passes through the support plate 1 21 and is threadedly connected to the pressure sensor bottom plate 42, and a second spring 2 51 located between the support plate 1 21 and the pressure sensor bottom plate 42 is sleeved on the second height screw 5, and a plurality of second height screws 5 are arranged in parallel. When the second height screw 5 and the second spring 2 51 are in action, the pressure sensor bottom plate 42 is allowed to shake, so as to solve the problem of sliding jamming caused by the thrust plate and the brake pad back plate being not parallel.

[0025] Reference Figure 2 and Figure 3After the product is positioned, the floating mechanism of the clamping force test descends, and the product motor rotates to drive the thrust plate forward, pushing the pressure sensor bottom plate 42 forward. When the pressure sensor 4 contacts the pressure sensor top plate 41, it moves as a whole until it contacts the product brake pad back plate, and the clamping force test begins at this time. A reset component for pushing the pressure sensor top plate 41 back to the initial position is provided on the side of the mounting frame 2. In this embodiment, the reset component includes a reset cylinder 6 fixed to the side of the mounting frame 2, and the driving end of the reset cylinder 6 abuts against the side of the pressure sensor top plate 41. The reset cylinder 6 is used to push the pressure sensor bottom plate 42 and the pressure sensor top plate 41 to the initial position to avoid collision with the EMB product caliper during the next automated test.

[0026] Reference Figure 2 and Figure 3 , a guide assembly is provided on the top surface of the mounting frame 2 to enable the pressure sensor top plate 41 and the pressure sensor bottom plate 42 to move along the length direction of the mounting frame 2, and the guide assembly includes a linear slide rail 7 provided on the top surface of the mounting frame 2 along the length direction of the mounting frame 2, and two linear slide rails 7 are provided in parallel. A slider 1 71 is provided on the bottom surface of the support plate 1 21 to be engaged with the linear slide rail 7, and a support plate 2 22 parallel to the pressure sensor top plate 41 is provided on the mounting frame 2. The support plate 2 22 is fixedly connected to the pressure sensor top plate 41, and a slider 2 72 is provided on the bottom surface of the support plate 22 to be engaged with the linear slide rail 7. The function of the linear slide rail 7 is to allow the test assembly to be at any position of the linear slide rail 7 when testing the clamping force. The range of the linear slide rail 7 is larger than the range in which the caliper can move, so as to avoid external force interference during the clamping force test. Since the pressure sensor top plate 41 and the pressure sensor bottom plate 42 move along the linear slide rail 7 when sliding, no offset will occur.

[0027] The implementation principle of this embodiment is as follows: after the product is positioned, the clamping force test floating mechanism descends, the product motor rotates to drive the thrust plate forward, and pushes the pressure sensor bottom plate 42 forward along the linear slide rail 7. When the pressure sensor 4 contacts the pressure sensor top plate 41, the test assembly moves as a whole until it contacts the product brake pad back plate, and the clamping force test starts at this time. Automatic clamping, no manual intervention.

[0028] The first height screw 3 and spring 1 31 allow the entire clamping force test fixture to shake slightly within the caliper within the range of assembly tolerance and processing tolerance, eliminating the need for alignment of the automatic placement sensor fixture and improving the detection efficiency. The second height screw 5 and spring 2 51 allow the pressure sensor bottom plate 42 to shake, preventing the thrust plate and the brake pad back plate from sliding and jamming when they are not parallel.

[0029] After the test is completed, the reset cylinder 6 is used to push the pressure sensor bottom plate 42 and the pressure sensor top plate 41 to the initial position to avoid collision with the EMB product caliper during the next automated test, thereby achieving a test process without external force interference and self-reset to ensure no collision.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A floating mechanism for testing the clamping force of a caliper, characterized in that: The invention comprises a test assembly, a fixing plate (1), and a mounting frame (2) for mounting the test assembly, which is located below the fixing plate (1) and parallel to the fixing plate (1); a plurality of first equal height screws (3) are arranged in a rectangular array between the fixing plate (1) and the mounting frame (2); each of the first equal height screws (3) is sleeved with a spring (31) located between the fixing plate (1) and the mounting frame (2); the test assembly comprises a pressure sensor bottom plate (42) connected to the mounting frame (2), and a pressure sensor top plate (41) parallel to the pressure sensor bottom plate (42); the pressure sensor bottom plate (42) and the pressure sensor top plate (41) are connected to each other. A pressure sensor (4) is arranged between the two sides of the mounting frame (2); a support plate (21) parallel to the bottom plate (42) of the pressure sensor is arranged on the mounting frame (2); a second height screw (5) is passed through the support plate (21); the second height screw (5) passes through the support plate (21) and is threadedly connected to the bottom plate (42) of the pressure sensor; a second spring (51) is sleeved on the second height screw (5) and is located between the support plate (21) and the bottom plate (42) of the pressure sensor; a plurality of second height screws (5) are arranged in parallel; and a reset component for pushing the top plate (41) of the pressure sensor back to its initial position is arranged on the side of the mounting frame (2).

2. A caliper clamping force test floating mechanism according to claim 1, characterized in that: The reset assembly comprises a reset cylinder (6) fixed on the side of the mounting frame (2), and the driving end of the reset cylinder (6) abuts against the side of the pressure sensor top plate (41).

3. A caliper clamping force test floating mechanism according to claim 1, characterized in that: A guide assembly is provided on the top surface of the mounting frame (2) for enabling a pressure sensor top plate (41) and a pressure sensor bottom plate (42) to move along the length direction of the mounting frame (2).

4. A caliper clamping force test floating mechanism according to claim 3, characterized in that: The guide assembly comprises a linear slide rail (7) arranged on the top surface of the mounting frame (2) along the length direction of the mounting frame (2), and a slider (71) which is engaged with the linear slide rail (7) is arranged on the bottom surface of the support plate (21).

5. A caliper clamping force test floating mechanism according to claim 4, characterized in that: The mounting frame (2) is provided with a second support plate (22) parallel to the pressure sensor top plate (41); the second support plate (22) is fixedly connected to the pressure sensor top plate (41); and a second slide block (72) engaged with the linear slide rail (7) is provided on the bottom surface of the second support plate (22).

Images