Disc brake function automatic testing device
By designing automated testing equipment and coordinating the testing mechanism with support components and controllers, fully automated testing of disc brakes was achieved, solving the problem of low efficiency in manual testing and improving testing accuracy and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI FAST AUTO DRIVE GRP CO LTD
- Filing Date
- 2023-10-09
- Publication Date
- 2026-06-16
Smart Images
Figure CN117288492B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of brake testing technology, specifically relating to an automatic testing device for disc brake functions. Background Technology
[0002] Brakes are key components ensuring vehicle safety. Disc brakes are widely used due to their fast response, low heat fade, and good water stability. Air disc brakes (ADB) have become the standard braking device for automobiles due to their advantages such as large braking torque, smooth braking, low leakage, and less susceptibility to harsh environments. After the disc brake caliper, its core adjustment mechanism, and push disc are assembled, their functionality needs to be tested according to strict testing standards. The main testing items include the working stroke of the brake lever, the installation height of the push disc, and the forward and reverse torque of the adjustment mechanism. Currently, this testing is mainly performed manually using specialized testing tools. When relying on manual testing, due to the numerous testing items and complex procedures, manual testing is not only time-consuming and affects work efficiency, but also cannot guarantee the accuracy of test data when testing critical components. Summary of the Invention
[0003] The purpose of this invention is to solve the problems in the prior art and provide an automatic testing device for disc brake functions.
[0004] To achieve the above objectives, the present invention employs the following technical solution:
[0005] An automatic testing device for disc brake function includes: a support member and a controller; a lever stroke detection mechanism and a first Y-axis servo module are respectively provided at both ends of the top of the support member, an adjustable torque detection mechanism is provided between the lever stroke detection mechanism and the first Y-axis servo module, and an X-axis servo module and a second Y-axis servo module are respectively provided on one side of the lever stroke detection mechanism and the first Y-axis servo module.
[0006] A push plate height detection mechanism is provided in the middle of the side of the support component away from the second Y-axis servo module. The push plate height detection mechanism is located below the adjustment torque detection mechanism.
[0007] The controllers are all electrically connected to the lever stroke detection mechanism, the torque adjustment detection mechanism, the push plate height detection mechanism, the first Y-axis servo module, the X-axis servo module, and the second Y-axis servo module.
[0008] Furthermore, the lever stroke detection mechanism includes a crossbeam, with a pressure regulating valve and a second base plate fixedly connected to one end and the middle part of one side of the crossbeam, respectively. The ends of the pressure regulating valve and the second base plate are both fixedly connected to the support member.
[0009] A cylinder fixing block is fixedly connected to the second base plate. A third cylinder is connected to the end of the cylinder fixing block by a pin. A probe connector is fixedly connected to the end of the third cylinder. A test head is fixedly connected to the end of the probe connector.
[0010] Furthermore, a third fixing block and an adjusting bolt are respectively provided on one side of the second substrate, and a positioning pin assembly is provided at the end of the second substrate near the test head. A fixing wrench is connected to the positioning pin assembly, and a spring is provided on one side of the fixing wrench. A shoulder hinge pin and a limiting block are connected to the end of the spring.
[0011] Furthermore, the torque adjustment detection mechanism includes a third base plate, which is fixedly connected to a support member. A fourth cylinder and a linear guide rail are fixedly connected to the third base plate. A pilot-operated speed control valve is fixedly connected to the outside of the fourth cylinder. A floating joint is fixedly connected to the drive end of the fourth cylinder, and an adjusting screw assembly is fixedly connected to the end of the floating joint.
[0012] Furthermore, a dedicated positioning pin for the linear guide is installed on the outer side of the linear guide, a second slider is slidably connected to the top of the linear guide, a fourth fixing block is fixedly connected to the top of the second slider, and a torque sensor is fixedly connected to the fourth fixing block.
[0013] A diaphragm coupling is fixedly connected to the lower part of the torque sensor. A connecting shaft is fixedly connected to the end of the diaphragm coupling. A bearing housing is connected to the end of the connecting shaft through a bushing. A splined shaft is fixedly connected to the end of the bearing housing. A screwdriver bit and a detection ring are respectively installed at the end and the outside of the splined shaft.
[0014] A proximity switch mounting plate is provided on the side of the bearing housing, and a proximity switch is fixedly connected to the proximity switch mounting plate. The proximity switch cooperates with the detection ring.
[0015] Furthermore, the push plate height detection mechanism includes a first cylinder, with a first speed regulating valve and a first fixing block respectively at both ends of the first cylinder, and a second cylinder fixedly connected to one side of the first fixing block, with the end of the second cylinder fixedly connected to the cylinder connecting plate.
[0016] The second cylinder has a guide post on its outer side, and a return spring is provided on the outer side of the guide post. The drive end of the second cylinder is fixedly connected to the standard block assembly.
[0017] Furthermore, the standard block assembly has symmetrically provided grooves for the standard block assembly.
[0018] Furthermore, a second hydraulic buffer and a limit post are respectively installed at both ends of the top of the cylinder connecting plate, and a first slider is fixedly connected to the bottom of the cylinder connecting plate. The first slider is slidably connected to the first guide rail, and a second fixing block is provided on the outer side of the bottom end of the first guide rail. A slotted photoelectric sensor is installed on the second fixing block.
[0019] Furthermore, a first base plate is fixedly connected to the top of the brick assembly, and a displacement sensor calibration block and a second displacement sensor are fixedly connected to the middle of the first base plate near the second cylinder.
[0020] Furthermore, the first Y-axis servo module and the X-axis servo module are connected, and the lever stroke detection mechanism is connected to the second Y-axis servo module.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. By installing a lever stroke detection mechanism, an adjustable torque detection mechanism, a push plate height detection mechanism, a first Y-axis servo module, an X-axis servo module, a second Y-axis servo module, and a controller on the support component, the controller controls each mechanism and module to operate in a pre-set sequence. When the conveyor line uses a pallet to transport the disc brake to the middle position inside the support component, the adjustable torque detection mechanism and the lever stroke detection mechanism successively detect the torque of the internal return component of the brake and the stroke distance of the lever, respectively. Finally, the push plate height detection mechanism checks whether the installation height of the push plate is in place. The entire operation process utilizes the cooperation between the controller and each mechanism and module to achieve fully automated disc brake function automatic detection, improving work efficiency and work level, and solving the problem of low efficiency caused by traditional manual detection.
[0023] 2. Installing sensors that match the operation of each mechanism on each mechanism for auxiliary operation can ensure the accuracy of the detection data and avoid detection errors.
[0024] 3. The standard block component of the push plate height detection mechanism is designed with a quick-change connector, and the torque adjustment detection component integrates a Y-axis servo module, which enables the torque adjustment detection mechanism to achieve precise Y-axis movement, thereby adapting to torque adjustment detection operations within the adjustment holes of various models of disc brakes. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 A schematic diagram of the overall structure of an automatic testing device for disc brake function provided by the present invention;
[0027] Figure 2 A schematic diagram of a lever stroke detection mechanism in an automatic testing device for disc brake function provided by the present invention;
[0028] Figure 3 A schematic diagram of the torque adjustment detection mechanism in an automatic testing device for disc brake function provided by the present invention;
[0029] Figure 4 A schematic diagram of the pusher height detection mechanism in an automatic testing device for disc brake function provided by the present invention;
[0030] Figure 5 The present invention provides a standard block assembly groove in an automatic testing device for disc brake functions;
[0031] Figure 6 This is a schematic diagram of a brake structure in the prior art;
[0032] Figure 7 This is a schematic diagram of the pusher disc structure in the brake.
[0033] Figure 8 This is a schematic diagram of the callback component structure in the brake;
[0034] Figure 9 This is a schematic diagram of the adjusting mechanism in the brake.
[0035] Figure 10 This is a schematic diagram of the lever structure in the brake.
[0036] Figure 11 This is a first schematic diagram of the push disc height detection in an automatic testing device for disc brake function provided by the present invention;
[0037] Figure 12 This is a second schematic diagram of the push disc height detection in an automatic testing device for disc brake function provided by the present invention;
[0038] Figure 13 This is a schematic diagram of the internal cross-sectional structure of the brake.
[0039] Figure 14 This is a schematic diagram of the lower friction mounting surface of the caliper inside the brake.
[0040] Figure 15 A schematic diagram showing the coordination of the push plate, the return assembly, and the adjustment mechanism inside the brake.
[0041] Figure 16 This is a schematic diagram of the first test of the lever stroke testing mechanism;
[0042] Figure 17 This is a schematic diagram of the second test of the lever stroke testing mechanism;
[0043] Figure 18 This is a top view of the brake.
[0044] Figure 19This invention provides a schematic diagram of the working direction of an automatic testing device for disc brake functions.
[0045] Figure 20 This invention provides a schematic diagram of torque detection during operation of an automatic testing device for disc brake functions;
[0046] The components include: 1. Frame; 2. Lever stroke detection mechanism; 201. Pressure regulating valve; 202. Cylinder fixing block; 203. Pin; 204. Third cylinder; 205. First displacement sensor; 206. Probe connector; 207. Test head; 208. Positioning pin assembly; 209. Fixing wrench; 210. Third fixing block; 211. Adjusting bolt; 212. Crossbeam; 213. Spring; 214. Shoulder hinge pin; 215. Limiting block; 216. Second base plate; 3. Adjustable torque detection mechanism; 301. Second speed regulating valve; 302. Fourth cylinder; 303. Pilot-operated speed regulating valve; 3 04. Second slider; 305. Fourth fixed block; 306. Floating joint; 307. Adjusting screw assembly; 308. Positioning bead; 309. Servo motor; 310. Reducer; 311. Diaphragm coupling; 312. Connecting shaft; 313. Bushing; 314. Bearing housing; 315. Detection ring; 316. Screwdriver bit; 317. Splined shaft; 318. Proximity switch; 319. Proximity switch mounting plate; 320. First hydraulic damper; 321. Blocking block; 322. Back plate; 323. Torque sensor; 324. Positioning block; 325. Linear guide rail special positioning pin; 326. 1. Linear guide rail; 327. Third base plate; 4. Push plate height detection mechanism; 401. First speed regulating valve; 402. First cylinder; 403. First fixing block; 404. Guide post; 405. Return spring; 406. Second cylinder; 407. Second hydraulic damper; 408. Cylinder connecting plate; 409. First base plate; 410. Stop pin; 411. Limit post; 412. First slider; 413. Groove photoelectric sensor; 414. Second fixing block; 415. Displacement sensor calibration block; 416. Slide rail; 417. Standard block assembly; 41701. Standard block assembly groove; 418. Second displacement sensor; 5. First Y-axis servo module; 6. X-axis servo module; 7. Second Y-axis servo module; 8. Controller; 9. Disc brake; 901. Adjustment hole; 902. Brake pin hole; 903. Type A brake adjustment hole; 904. Type B brake adjustment hole; 905. Type C brake adjustment hole; 10. Push plate; 1001. Push plate positioning pin; 11. Retraction assembly; 12. Adjustment mechanism; 13. Caliper lower friction mounting surface; 14. Lever; 1401. Lever ball socket; 1402. Lever detection first distance; 1403. Lever detection second distance. Detailed Implementation
[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0048] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0050] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0051] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0052] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.
[0053] like Figure 6 As shown, Figure 6 This is a schematic diagram of the overall structure of the brake 9 in the prior art, such as... Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the brake 9 internally houses a push plate 10, a return assembly 11, an adjustment mechanism 12, and a lever 14 (caliper), as follows: Figure 13 and Figure 15 The diagram shows the push plate 10, the return assembly 11, and the adjustment mechanism 12 installed inside the brake 9. The adjustment mechanism 12 cooperates with both the push plate 10 and the return assembly 11. By rotating the return assembly 11, the gear on the adjustment mechanism 12 is driven, thereby causing the push plate 10 to move in the Z direction. Currently, the working stroke of the lever inside the brake 9, the installation height of the push plate 10, and the forward and reverse torque of the adjustment mechanism 12 are mainly tested manually using specialized testing tools. However, manual testing is time-consuming and inefficient due to the numerous and complex testing items. Furthermore, the accuracy of the test data cannot be guaranteed when testing critical components.
[0054] To address the aforementioned technical deficiencies, this invention provides an automatic testing device for disc brake functions, comprising a support member and a controller 8. A lever stroke detection mechanism 2 and a first Y-axis servo module 5 are respectively located at both ends of the top of the support member. An adjustable torque detection mechanism 3 is located between the lever stroke detection mechanism 2 and the first Y-axis servo module 5. An X-axis servo module 6 and a second Y-axis servo module 7 are respectively located on one side of the lever stroke detection mechanism 2 and the first Y-axis servo module 5. A push plate height detection mechanism 4 is located in the middle of the support member on the side away from the second Y-axis servo module 7, and the push plate height detection mechanism 4 is located below the adjustable torque detection mechanism 3. The controller 8 is electrically connected to the lever stroke detection mechanism 2, the adjustable torque detection mechanism 3, the push plate height detection mechanism 4, the first Y-axis servo module 5, the X-axis servo module 6, and the second Y-axis servo module 7. (See attached diagram.) Figure 1 and 19The first Y-axis servo module 5 and the X-axis servo module 6 are connected. The lever stroke detection mechanism 2 is connected to the second Y-axis servo module 7, and the adjusting torque detection mechanism 3 is connected to the first Y-axis servo module 5. The operating sequence of the lever stroke detection mechanism 2, the adjusting torque detection mechanism 3, and the push plate height detection mechanism 4 is pre-set using the controller 8. The controller 8 is a Siemens S7-1500 controller CPU1516T-3PN / DP. The controller 8 controls each mechanism and module to operate in the pre-set sequence. When the conveyor line uses the pallet to... When the disc brake 9 is delivered to the middle position inside the support, the torque detection mechanism 3 and the lever stroke detection mechanism 2 successively detect the torque of the internal return component 11 and the stroke distance of the lever 14 of the brake 9. Finally, the push plate height detection mechanism 4 detects whether the installation height of the push plate 10 is in place. The entire operation process utilizes the cooperation between the controller 8 and various mechanisms and modules to achieve fully automated automatic detection of the disc brake 9 function, which improves the work efficiency and the work level, and solves the problem of low efficiency caused by traditional manual detection.
[0055] Furthermore, such as Figure 2As shown, the lever stroke detection mechanism 2 includes a crossbeam 212. A pressure regulating valve 201 and a second base plate 216 are fixedly connected to one end and the middle of one side of the crossbeam 212, respectively. The ends of both the pressure regulating valve 201 and the second base plate 216 are fixedly connected to a support member. A cylinder fixing block 202 is fixedly connected to the second base plate 216. A third cylinder 204 is connected to the end of the cylinder fixing block 202 via a pin 203. A probe connector 206 is fixedly connected to the end of the third cylinder 204. A first displacement sensor 205 is installed on one side of the third cylinder 204. A test head 207 is fixedly connected to the end of the probe connector 206. The pressure regulating valve... 201 is used to adjust the driving pressure of the third cylinder 204. The distance between the first displacement sensor 205 and the detection test head 207 is the initial distance. The distance that the test head 207 moves after descending minus the initial distance is the actual distance the test head 207 moves. The cylinder fixing block 202 is connected to the third cylinder 204 by a pin 203, mainly because the third cylinder 204 will have an angular offset of 3° to 5° from the Z-axis during operation. The test head connector 206 is threaded to the drive end of the third cylinder 204, and the test head 207 is connected to the test head connector 206 by four set screws. Fixed; a third fixing block 210 and an adjusting bolt 211 are respectively provided on one side of the second base plate 216. A positioning pin assembly 208 is provided at the end of the second base plate 216 near the test head 207. The positioning pin assemblies 208 are symmetrically arranged. A fixing wrench 209 is connected to the top of each positioning pin assembly 208. A spring 213 is provided on one side of the fixing wrench 209. The end of the spring 213 is connected to a shoulder hinge pin 214 and a limiting block 215. The limiting block 215 is connected to the end of the third cylinder 204 with a driving end, so that the angular deviation of the driving end of the third cylinder 204 during operation does not exceed 5°. The outer side of the shoulder hinge pin 214 Spring 213 can reset the third cylinder 204 after it has finished moving; fixed wrench 209 is used to fix the positioning pin assembly 208 and the second base plate 216; adjusting bolt 211 passes through the third fixing block 210 and is fixedly connected to the second base plate 216; the function of adjusting bolt 211 is to move and adjust the entire lever stroke detection mechanism 2 in the X direction when changing to a new model of brake 9; the limiting block 215 can prevent the third cylinder 204 from deviating by more than 5° due to motion inertia; the circumferential diameter of the test head 207 is smaller than the inner diameter of the lever ball socket 1401, ensuring that the test head 207 can hit the bottom of the lever ball socket 1401 when it is pressed down.
[0056] Furthermore, such as Figure 3As shown, there are two torque adjustment detection mechanisms 3. Each mechanism includes a third base plate 327, which is fixedly connected to a support member. A fourth cylinder 302 and a linear guide rail 326 are fixedly connected to the third base plate 327. The fourth cylinder 302 performs the Z-axis lifting and lowering process of the torque adjustment detection mechanism 3. The linear guide rail 326 ensures accurate positioning during Z-axis operation. A pilot-operated speed control valve 303 is fixedly connected to the outside of the fourth cylinder 302. A second speed control valve 301 and a floating joint 306 are respectively installed at both ends of the fourth cylinder 302. An adjusting screw assembly 307 is fixedly connected to the end of the floating joint 306. One side of the 6 is fixedly connected to the third base plate 327, which plays a buffering and protective role when the fourth cylinder 302 moves; the outer side of the linear guide 326 is provided with a special positioning pin 325 for the linear guide; the top of the linear guide 326 is slidably connected to the second slider 304; the top of the second slider 304 is fixedly connected to the fourth fixing block 305; the torque sensor 323 is fixedly connected to the fourth fixing block 305; a positioning block 324 is installed on the side of the torque sensor 323 corresponding to the third base plate 327; a diaphragm coupling 311 is fixedly connected below the torque sensor 323; a connecting shaft 312 is fixedly connected to the end of the diaphragm coupling 311. The end of the connecting shaft 312 is connected to a bearing housing 314 via a bushing 313. The bearing housing 314 is connected to the third base plate 327 via hexagon socket bolts. A spline shaft 317 is fixedly connected to the end of the bearing housing 314. A bit 316 and a detection ring 315 are respectively installed on the end and outer side of the spline shaft 317. The bit 316 is connected to the lower end of the spline shaft 317 via a positioning bead 308. The detection ring 315 is fixedly connected to the spline shaft 317 via a set screw. During the test, after the bit 316 is fully inserted, the proximity switch 318 will sense the detection ring 315, indicating that the bit 316 is inserted at the correct height, and the torque test will begin. The bearing housing 314 has a proximity switch mounting plate 319 on its side, and a proximity switch 318 is fixedly connected to the proximity switch mounting plate 319. The proximity switch 318 cooperates with the detection ring 315. The lower part of the third base plate 327 is fixedly connected to a back plate 322, and a first hydraulic buffer 320 is installed on the back plate 322. A blocking block 321 is threadedly fixed to the end of the first hydraulic buffer 320. The upper and lower dead points of the fourth cylinder 302 are both equipped with first hydraulic buffers 320 to ensure smooth stopping after the stroke is completed. A reducer 310 is installed on the upper end of the torque sensor 323. The flange face of the reducer 310 housing is fixedly connected to the servo motor 309 by bolts.
[0057] Furthermore, such as Figure 4As shown, the push plate height detection mechanism 4 includes a first cylinder 402. A first speed regulating valve 401 and a first fixing block 403 are respectively provided at both ends of the first cylinder 402. A slide rail 416 is provided on one side of the first cylinder 402, which provides Y-axis movement guidance for the push plate height detection mechanism 4. The first speed regulating valve 401 is used to adjust the Y-axis movement speed. A second cylinder 406 is fixedly connected to one side of the first fixing block 403, and the end of the second cylinder 406 is fixedly connected to a cylinder connecting plate 408. The second cylinder 406 can drive the cylinder connecting plate 408 to move in the Z direction; a guide post 404 is provided on the outside of the second cylinder 406, and a return spring 405 is provided on the outside of the guide post 404. The driving end of the second cylinder 406 drives the cylinder connecting plate 408 to move in the Z direction, thereby driving the standard block assembly 417 to move in the Z direction. The guide post 404 can ensure the positional accuracy during the Z-direction movement, and the return spring 405 installed on the guide post 404 resets after the cylinder connecting plate 408 moves in the Z direction. Figure 5 As shown, symmetrical grooves 41701 are provided on the standard block assembly 417. During the height detection of the push plate 10, the grooves 41701 are used to hold the two push plate positioning posts 1001 at the bottom of the push plate 10, ensuring the stability of the push plate 10 installation. The top two ends of the cylinder connecting plate 408 are respectively equipped with a second hydraulic buffer 407 and a limit post 411, which play a buffering role when the standard block assembly 417 reciprocates in the Y direction to the position, reducing equipment vibration. The bottom of the cylinder connecting plate 408 is fixedly connected to a first slider 412, which is slidably connected to a first guide rail. A second fixing block 414 is provided on the outer side of the bottom end of the first guide rail, and a groove is installed on the second fixing block 414. The slotted photoelectric sensor 413 is used to set the starting and ending points of the movement of the first slider 412. After the first slider 412 moves to the position of the slotted photoelectric sensor 413, the slotted photoelectric sensor 413 transmits information to the controller 8, and the controller 8 begins to issue the next operation instruction. The top of the standard block assembly 417 is fixedly connected to the first base plate 409. The middle part of the first base plate 409 near the second cylinder 406 is fixedly connected to the displacement sensor calibration block 415 and the second displacement sensor 418. A stop pin 410 is also provided on the outer side of the end of the first base plate 409. The stop pin 410 contacts the support to ensure that the entire push plate height detection mechanism 4 will not move in the Y direction during operation.
[0058] In this embodiment, the support member is a frame 1. When inspecting the push plate 10, the return assembly 11, the adjustment mechanism 12, and the lever 14 (caliper) inside the brake 9, the disc brake 9 is first transported from one side of the frame 1 to the middle position inside the frame 1 by an external conveyor line using a tray. Then, the torque detection mechanism 3 and the lever stroke detection mechanism 2 successively detect the torque of the return assembly 11 and the stroke distance of the lever 14 inside the brake 9, respectively. Specifically, the second cylinder 406 drives the first base plate 409 to move upward and lift the tray so that the brake 9 is flush with the reference surface at the top of the frame 1. Then, the lever stroke detection mechanism 2 begins operation, such as... Figure 18 As shown, the locating pin assembly 208 is inserted into the brake pin hole 902; then as... Figure 1 , Figure 14 and Figure 18 As shown, the X-axis servo module 6 drives the torque adjustment detection mechanism 3 to move into the adjustment hole 901 of the brake 9; simultaneously, as Figure 10 , Figure 16 and Figure 18 As shown, the fourth cylinder 302 moves downward, driving the bit 316 into the return assembly 11 inside the brake 9. After the proximity switch 318 senses the detection ring 315, it feeds back the sensed signal to the controller 8 to confirm that the bit 316 is correctly positioned. Subsequently, the controller 8 drives the torque detection mechanism 3 to perform the next operation. First, the bit 316 rotates forward, and the torque sensor 323 detects the torque during the forward rotation and feeds it back to the controller 8. Second, the bit 316 rotates in reverse, and the torque sensor 323 detects the torque during the reverse rotation and feeds it back to the controller 8. After the torque detection is completed, the third cylinder 204 in the lever stroke detection mechanism 2 drives the test head 207 to move downward in the Z direction. The pressure regulating valve 201 controls the third cylinder 204 to first drive the test head 207 to strike the lever ball socket 1401 of the lever 14 with a lower pressure. The first displacement sensor 205 then detects the lever detection first distance 1402 between the starting point of the lever 14 and the air chamber surface of the brake 9. Figure 16 As shown; after the lever detection first distance 1402 is completed, the pressure regulating valve 201 is closed, causing the third cylinder 204 to descend with full pressure and press against the lever ball socket 1401 of the lever 14 inside the brake 9. The first displacement sensor 205 measures the lever detection second distance 1403 from the bottom dead center of the lever 14 stroke to the air chamber surface of the brake 9. Figure 17As shown; finally, the push plate height detection mechanism 4 begins operation. The second cylinder 406 drives the push plate height detection mechanism 4 to move downward in the Z direction first, and the first cylinder 402 drives the push plate height detection mechanism 4 to move in the Y direction. After the first cylinder 402 is depressurized, the return spring 405 resets and drives the push plate height detection mechanism 4 to move upward in the Z direction, so that the standard block assembly groove 41701 of the standard block assembly 417 is locked at the push plate positioning post 1001 at the bottom of the push plate 10 in the brake 9, located above the lower friction mounting surface 13 of the caliper, as shown. Figure 11 , Figure 12 and Figure 14 As shown; secondly, the forward rotation of the bit 316 of the torque detection mechanism 3 drives the internal return assembly 11 of the brake 9 to rotate, causing the inner push plate 10 of the brake 9 and the standard block assembly 417 to descend together to the mounting surface of the friction pad under the caliper. At this time, the second displacement sensor 418 records a displacement value of 0; as Figure 20 As shown, the reverse rotation of the bit 316 drives the reversal component 11, causing the pusher plate 10 to move upward to the top dead center. The second displacement sensor 418 records the displacement value as E; the height of the brick marker component 417 is F (accurately measured to three decimal places), resulting in the actual distance of the pusher plate 10's installation position as G = E + F. Figure 18 As shown, there are many types of brakes, which can be roughly divided into three categories: type A, type B, and type C. Although the model numbers are different, their structures are roughly the same, such as... Figure 18 As shown, the A-type brake adjustment hole 903, B-type brake adjustment hole 904, and C-type brake adjustment hole 905 are equipped with quick-change connectors on the standard block assembly 417 of the push disc height detection mechanism 4. The torque adjustment detection mechanism 3 integrates a Y-axis servo module, enabling precise Y-axis movement of the torque adjustment detection mechanism 3, thus adapting to torque adjustment detection operations within the adjustment hole positions of various models of disc brakes 9. This testing equipment is used to test the functions of different brakes 9. The entire operation process utilizes the coordination between the controller 8 and various mechanisms and modules to achieve fully automated disc brake function detection, improving both operational efficiency and quality, and solving the problem of low efficiency associated with traditional manual testing.
[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. An automatic testing device for disc brake functions, characterized in that, include: Support and controller (8); a lever stroke detection mechanism (2) and a first Y-axis servo module (5) are respectively provided at both ends of the top of the support; an adjustment torque detection mechanism (3) is provided between the lever stroke detection mechanism (2) and the first Y-axis servo module (5); an X-axis servo module (6) and a second Y-axis servo module (7) are respectively provided on one side of the lever stroke detection mechanism (2) and the first Y-axis servo module (5); The support member is provided with a push plate height detection mechanism (4) in the middle of the side away from the second Y-axis servo module (7), and the push plate height detection mechanism (4) is located below the adjustment torque detection mechanism (3); The controller (8) is electrically connected to the lever stroke detection mechanism (2), the adjustment torque detection mechanism (3), the push plate height detection mechanism (4), the first Y-axis servo module (5), the X-axis servo module (6), and the second Y-axis servo module (7); The lever stroke detection mechanism (2) includes a crossbeam (212), and a pressure regulating valve (201) and a second base plate (216) are fixedly connected to one end and the middle part of the crossbeam (212), respectively. The ends of the pressure regulating valve (201) and the second base plate (216) are both fixedly connected to the support. A cylinder fixing block (202) is fixedly connected to the second base plate (216). The end of the cylinder fixing block (202) is connected to a third cylinder (204) via a pin (203). The end of the third cylinder (204) is fixedly connected to a probe connector (206). The end of the probe connector (206) is fixedly connected to a test head (207). The torque adjustment detection mechanism (3) includes a third base plate (327), which is fixedly connected to a support member. A fourth cylinder (302) and a linear guide rail (326) are fixedly connected to the third base plate (327). A pilot-operated speed control valve (303) is fixedly connected to the outside of the fourth cylinder (302). A floating joint (306) is fixedly connected to the drive end of the fourth cylinder (302). An adjusting screw assembly (307) is fixedly connected to the end of the floating joint (306). The outer side of the linear guide (326) is provided with a special positioning pin (325) for the linear guide. The top of the linear guide (326) is slidably connected to a second slider (304). The top of the second slider (304) is fixedly connected to a fourth fixing block (305). A torque sensor (323) is fixedly connected to the fourth fixing block (305). A diaphragm coupling (311) is fixedly connected below the torque sensor (323). A connecting shaft (312) is fixedly connected to the end of the diaphragm coupling (311). A bearing housing (314) is connected to the end of the connecting shaft (312) through a bushing (313). A spline shaft (317) is fixedly connected to the end of the bearing housing (314). A screwdriver bit (316) and a detection ring (315) are respectively installed at the end and the outside of the spline shaft (317). The bearing housing (314) is provided with a proximity switch fixing plate (319) on its side. A proximity switch (318) is fixedly connected to the proximity switch fixing plate (319). The proximity switch (318) cooperates with the detection ring (315).
2. The testing equipment according to claim 1, characterized in that, The second substrate (216) is provided with a third fixing block (210) and an adjusting bolt (211) on one side. The second substrate (216) is provided with a positioning pin assembly (208) near the end of the test head (207). A fixing wrench (209) is connected to the positioning pin assembly (208). A spring (213) is provided on one side of the fixing wrench (209). The end of the spring (213) is connected with a shoulder hinge pin (214) and a limiting block (215).
3. The testing equipment according to claim 1, characterized in that, The push plate height detection mechanism (4) includes a first cylinder (402), with a first speed regulating valve (401) and a first fixing block (403) respectively at both ends of the first cylinder (402). A second cylinder (406) is fixedly connected to one side of the first fixing block (403), and the end of the second cylinder (406) is fixedly connected to the cylinder connecting plate (408). The second cylinder (406) is provided with a guide post (404) on its outer side, and a return spring (405) is provided on the outer side of the guide post (404). The drive end of the second cylinder (406) is fixedly connected to the standard block assembly (417).
4. The testing equipment according to claim 3, characterized in that, The standard block assembly (417) is provided with symmetrical standard block assembly grooves (41701).
5. The testing equipment according to claim 3, characterized in that, The cylinder connecting plate (408) has a second hydraulic buffer (407) and a limit post (411) installed at both ends of the top. The cylinder connecting plate (408) has a first slider (412) fixedly connected to the bottom. The first slider (412) is slidably connected to the first guide rail. The bottom outer side of the first guide rail is provided with a second fixing block (414). The second fixing block (414) is equipped with a slotted photoelectric sensor (413).
6. The testing equipment according to claim 3, characterized in that, The top of the standard block assembly (417) is fixedly connected to a first base plate (409), and a displacement sensor calibration block (415) and a second displacement sensor (418) are fixedly connected to the middle of the first base plate (409) near the side of the second cylinder (406).
7. The testing equipment according to claim 1, characterized in that, The first Y-axis servo module (5) and the X-axis servo module (6) are connected, and the lever stroke detection mechanism (2) and the second Y-axis servo module (7) are connected.