Automatic testing device and method for sliding force of air pressure disc brake

Abstract

This invention proposes an automatic testing device and method for the sliding force of a pneumatic disc brake. The device includes a mounting base with a rotation adjustment section for supporting a tray holding the brake and rotating the tray horizontally. Above the rotation adjustment section within the mounting base, a flip adjustment section is provided for vertically lifting and flipping the brake (after adjustment) to a horizontal position. A guide positioning section is located on the side of the rotation adjustment section within the mounting base to fix the horizontally positioned brake. A testing section is located at the bottom of the flip adjustment section for testing the sliding force of the brake. This device reduces reliance on manual operation, alleviates the workload of operators, and avoids the influence of operator assembly errors on test results, thus improving test accuracy and reliability.

Description

Technical Field

[0001] This invention belongs to the technical field of air disc brake testing equipment, specifically to an automatic testing device and method for the sliding force of air disc brakes. Background Technology

[0002] Air disc brakes are lightweight, high-performance, durable, have fewer wear parts, and have a long service life, all of which are superior to traditional drum brakes. They are a key safety component in modern high-end commercial vehicles and require high assembly quality.

[0003] After the pneumatic disc brake is assembled, accurate testing of its sliding force is crucial to ensure its superior performance and quality. However, traditional testing methods rely on manual operation. Inspectors manually set up and calibrate the testing equipment, then manually place the workpiece onto it, start and control the equipment to perform the sliding force test. The data is manually recorded, analyzed, and interpreted by the inspectors to obtain the results. While this method can test the sliding force of pneumatic disc brakes, the process involves manual handling and securing of the brake, as well as operator control of the equipment, resulting in a heavy workload for inspectors. Furthermore, the time required for data recording, analysis, and interpretation leads to low efficiency. Additionally, errors during manual securing of the pneumatic disc brake can compromise the reliability of the test results. Summary of the Invention

[0004] To address the problem that the sliding force testing of pneumatic disc brakes relies heavily on manual operation, resulting in a heavy workload for testing personnel and low testing efficiency, this invention provides an automatic sliding force testing device and method for pneumatic disc brakes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention proposes an automatic testing device for the sliding force of a pneumatic disc brake, including a mounting base, on which a rotation adjustment part is provided for supporting a tray on which the brake is placed and for rotating the tray horizontally. The mounting base is provided with a flip adjustment part above the rotation adjustment part, which is used to vertically lift and flip the brake after adjustment in the rotation adjustment part so that the brake is in a horizontal state. A guide positioning part is provided inside the mounting base on the side of the rotation adjustment part for fixing the brake in a horizontal state; The bottom of the flip adjustment part is provided with a test part for testing the sliding force of the brake.

[0006] Preferably, the mounting base includes a lower base and an upper base, with the upper base fixed above the lower base; A chain conveyor belt is provided on the lower base frame, and the rotation adjustment part is installed inside the lower base frame below the chain conveyor belt. A first sensor for positioning is provided inside the lower base frame. A limiting platform is provided on the side of the rotation adjustment section on the chain conveyor belt.

[0007] Preferably, the rotation adjustment part includes a mounting bracket, which is installed in the lower base frame at a position below the chain conveyor belt. A transverse cylinder is installed in the mounting bracket. A first slider is connected to the piston head of the transverse cylinder. A rotating component is provided on the first slider. A rotating plate is connected to the top of the rotating component. The tray is placed on the top of the rotating plate. The mounting bracket is provided with a first guide rail located inside the transverse cylinder, and the first slider is slidably mounted on the first guide rail. A lifting cylinder is vertically installed inside the mounting bracket, and a lifting plate is installed on the piston head of the lifting cylinder. The lifting plate is located between the mounting bracket and the rotating plate. A photoelectric sensor is provided on the upper surface of the mounting bracket; A stop cylinder is vertically installed inside the mounting bracket, and a first limiter is installed on the piston head of the stop cylinder.

[0008] Preferably, the rotating component includes a first toothed fixture and a first gear, the first toothed fixture and the first gear meshing with each other, the first toothed fixture being fixed on the first slider, the first gear being rotatably mounted in the mounting bracket, a rotating shaft being concentrically connected to the first gear, and a telescopic adjustment rod being connected between the top end face of the rotating shaft and the bottom end face of the rotating plate.

[0009] Preferably, the top of the rotating plate is provided with a support block and a positioning pin, and the top of the support block is in contact with the bottom end face of the tray; The positioning pin is installed in the positioning hole provided on the tray; An RFID chip is provided on the bottom end face of the tray, and an RFID reader / writer head is provided on the rotating plate at the position corresponding to the RFID chip.

[0010] Preferably, the flip adjustment part includes a connecting frame, on which a mounting plate and a testing part are connected. A second slider is provided on the mounting plate near its two ends, and the second slider is slidably mounted on a second guide rail provided on the upper base frame. The connecting frame is provided with a third guide rail, a third slider is connected to the third guide rail, a guide plate is connected to the third slider, a fixed bracket is connected to the bottom end face of the guide plate, a driving cylinder is installed in the fixed bracket, a second toothed tool is connected to the piston head of the driving cylinder, a hydraulic buffer is connected to the second toothed tool, and the hydraulic buffer is installed on the fixed bracket. A second gear is rotatably mounted on the fixed bracket at the position of the second toothed tool, and the second gear meshes with the second toothed tool. The second gear is connected to a chuck bracket, the chuck bracket is equipped with a chuck cylinder, and the piston head of the chuck cylinder is connected to a gripper.

[0011] Preferably, the testing unit includes a connecting frame, the connecting frame is fixed on the connecting frame, a fourth guide rail is provided on the connecting frame, a guide slide is slidably installed on the fourth guide rail, a connecting plate is connected to the bottom end of the guide slide, a floating joint and a test head are installed on the connecting plate, and the floating joint is connected to the test head.

[0012] Preferably, the guide positioning part includes a connecting base frame, the connecting base frame is fixed to the top of the lower base frame, a caliper support is provided on the connecting base frame, and the top of the caliper support supports the brake; A starting position baffle is provided on one side of the caliper support on the connecting base frame, and a positioning cylinder is provided on the other side of the caliper support. A bracket stop is connected to the piston head of the positioning cylinder, and the bracket stop is relative to the caliper support. A push-pull cylinder is provided on the side of the positioning cylinder on the connecting base frame. A push-pull block is connected to the piston head of the push-pull cylinder, and the push-pull block is relative to the starting position baffle. A light displacement sensor is installed above the push-pull cylinder.

[0013] Preferably, the lower base frame is provided with a conveying section for conveying unqualified products. The conveying section includes a support frame located on one side of the second guide rail. Multiple transmission rollers are arranged parallel to each other on the top of the support frame, and a transmission belt is provided on the multiple transmission rollers.

[0014] This invention proposes an automatic testing method for the sliding force of a pneumatic disc brake, which utilizes the aforementioned automatic testing device for the sliding force of a pneumatic disc brake, and includes the following steps: Place the tray with the brake placed vertically into the rotation adjustment section, move it to the corresponding position in the mounting base, and adjust the brake through the rotation adjustment section so that the clamping part on the brake is aligned with the clamping structure in the flip adjustment section. The flipping adjustment part clamps the brake and flips it by ° to make the brake horizontal, and then places it in the guide positioning part for fixation; The flipping adjustment unit moves the test unit to the brake, and the test unit moves the tail of the brake horizontally to test the sliding force of the brake.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention proposes an automatic testing device for the sliding force of a pneumatic disc brake. During brake testing, the brake is placed on a rotating adjustment unit. The unit rotates horizontally, and when the brake is placed vertically, its position is adjusted horizontally to allow the rotating adjustment unit to clamp it. After the rotating adjustment unit lifts the brake to a certain height, it is then positioned horizontally and placed in a guide positioning unit for horizontal fixation. The sliding force of the brake is then tested through the testing unit. This device automates the entire process from vertical placement of the brake, horizontal rotation and positioning, automatic rotation to a horizontal state, precise positioning and fixation, to the final sliding force test. This reduces reliance on manual operation, alleviates the workload of operators, and greatly improves efficiency, consistency, and safety. It also avoids the impact of operator assembly errors on test results, improving test accuracy and reliability, improving the working conditions of operators, and ensuring the authenticity of the test conditions.

[0016] Furthermore, in this device, the rotating adjustment unit is driven to move horizontally in the lower base frame by a chain conveyor belt. Combined with the position detection of the first sensor and the physical limitation of the limiting platform, the horizontal displacement of the brake on the lower base frame is positioned so that the brake stops precisely below the flipping adjustment unit, eliminating offset errors and providing a high-precision positioning basis for subsequent automated clamping and flipping.

[0017] Furthermore, the rotary adjustment unit in this device rotates the tray and the brake placed on it through the cooperation of the transverse cylinder and the rotating component, so that the clamping holes on the brake are aligned with the rotary adjustment unit. Then, the brake is clamped and rotated 90° by the flip adjustment unit so that the brake is in a horizontal position and placed in the positioning guide unit for testing. In this process, there is no need for the operator to manually adjust the brake, which improves the automation rate and reduces labor costs. After the guide positioning unit, the brake is positioned and fixed by the cooperation of the caliper support, bracket stop and push-pull block, which reduces the error of manual fixing, avoids the influence of assembly error on the test results, and improves the accuracy of the test results. Attached Figure Description

[0018] Figure 1A schematic diagram of the structure of an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 2 A schematic diagram of the guide and positioning part in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 3 A schematic diagram of the installation of the guide positioning part and the brake in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 4 A schematic diagram of the connection between the upper base frame and the tilting adjustment part in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 5 A schematic diagram showing the connection between the tilting adjustment section and the testing section in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 6 A schematic diagram of the flipping adjustment section in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 7 A schematic diagram of the connection between the chuck bracket and the second gear in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 8 A schematic diagram of the vertical clamping state of the brake in the flipping adjustment section of an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 9 A schematic diagram of the state after the flipping adjustment part clamps and flips the brake in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 10 A schematic diagram showing the connection between the lower base frame and the rotary adjustment part in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 11 A schematic diagram of the connection between the rotary adjustment part and the tray in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 12 A schematic diagram of the rotating adjustment section in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 13 A schematic diagram of the state of the rotary adjustment section after it has been raised to its limit position in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 14 A schematic diagram showing the connection between the rotary adjustment unit and the chain conveyor belt in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 15 A schematic diagram of the tray structure in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 16 A schematic diagram of the connection between the tray and the RFID chip in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 17 A schematic diagram of the brake structure to be tested by the automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention. Figure 18 A schematic diagram of the product output section in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; Figure 19 A schematic diagram of the testing section in an automatic testing device for the sliding force of a pneumatic disc brake provided by the present invention; In the attached diagram: 1. Mounting base frame; 1-1. Lower base frame; 1-2. Upper base frame; 1-3. Chain conveyor belt; 1-4. Tray; 1-5. First sensor; 1-6. Limiting platform; 1-7. RFID chip; 2. Rotation adjustment unit; 2-1. Stop cylinder; 2-2. First limiter; 2-3. Lifting cylinder; 2-4. Lifting plate; 2-5. Lateral cylinder; 2-6. Rotating plate; 2-7. First rotating shaft; 2-8. First tooth 2-9. Wheel; 2-10. Photoelectric sensor; 2-11. Support block; 2-12. Positioning pin; 2-13. RFID reader / writer head; 2-14. First slider; 2-15. First guide rail; 2-16. First toothed tooling; 3. Flip adjustment part; 3-1. Second guide rail; 3-2. Second slider; 3-3. Mounting plate; 3-4. Gripper; 3-5. Drive cylinder; 3-6. Second rotating shaft; 3-7. Second gear; 3-8. Limit block; 3-9. Second toothed tooling; 3-10. Second sensor; 3-11. Third guide rail; 3-12. Third slider; 3-13. Connecting frame; 3-14. Claw bracket; 3-15. Fixed bracket; 3-16. Hydraulic buffer; 4. Guide and positioning part; 4-1. Connecting base frame; 4-2. Laser displacement sensor; 4-3. Push-pull block; 4-4. Caliper support; 4-5. Bracket stop; 4-6. Positioning cylinder; 4-7. Fixed... Position plate; 4-8, push-pull cylinder; 4-9, starting position baffle; 5, conveying section; 5-1, support frame; 5-2, transmission roller; 5-3, baffle; 5-4, second limiter; 5-5, conveyor belt; 5-6, adjusting support leg; 6, testing section; 6-1, test head; 6-2, floating joint; 6-3, connecting frame; 6-4, connecting plate; 6-5, guide slide plate; 6-6, fourth guide rail; 6-7, guide rail mounting plate; 7, brake. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] This invention proposes an automatic testing device for the sliding force of a pneumatic disc brake, such as... Figures 1-19 As shown, the system includes a mounting base 1, on which a rotation adjustment part 2 is provided for lifting a tray 1-4 on which the brake 7 is placed vertically and rotating the tray 1-4 horizontally; a flip adjustment part 3 is provided inside the mounting base 1 above the rotation adjustment part 2, for vertically lifting and flipping the brake 7 after adjustment inside the rotation adjustment part 2 by 90° so that the brake 7 is in a horizontal state; a guide positioning part 4 is provided inside the mounting base 1 on the side of the rotation adjustment part 2 for fixing the brake 7 in a horizontal state; and a test part 6 is provided at the bottom of the flip adjustment part 3 for testing the sliding force of the brake 7. In this device, the brake 7 is placed in the rotation adjustment section 2. The brake is mechanically clamped and flipped to a horizontal position, and then placed in the guide positioning section 4 for fixation. The sliding force of the brake 7 is then tested by the testing section 6. During this testing process, only the operator needs to place the brake 7 and the trays 1-4 in the rotation adjustment section 2. The entire process, from horizontal rotation and positioning of the brake 7, flipping it to a horizontal position, precise positioning and fixation, to the final sliding force test, can be automated by the operator using the corresponding parts of this device. This significantly reduces manual intervention, reduces the workload of the testing personnel, lowers labor intensity, and avoids inconsistencies in clamping and positioning caused by individual differences in operators, thus improving operational safety.

[0026] like Figure 1 , Figure 4 and Figure 10As shown, the mounting base 1 includes a lower base 1-1 and an upper base 1-2. The upper base 1-2 is fixed above the lower base 1-1 and connected by bolts. A chain conveyor belt 1-3 is installed on the lower base 1-1. A rotation adjustment unit 2 is installed inside the lower base 1-1 below the chain conveyor belt 1-3. During operation, a tray 1-4 is placed on the chain conveyor belt 1-3 and is conveyed to the top of the rotation adjustment unit 2 via the chain conveyor belt 1-3. A first sensor 1-5 for positioning is installed inside the lower base 1-1. A limit stage 1-8 is installed on the side of the rotation adjustment unit 2 on the chain conveyor belt 1-3. This device drives the rotation adjustment unit 2 via the chain conveyor belt 1-3. The base frame 1-1 moves horizontally, and the position is detected by the first sensor 1-5 during the movement. When the rotation adjustment part 2 moves to the position of the first sensor 1-5, the first sensor 1-5 sends a signal to stop the chain conveyor belt 1-3. This causes the brake 7 placed on the rotation adjustment part 2 to be located below the flip adjustment part 3, which facilitates the flip adjustment part 3 to clamp the brake 7. During the movement of the rotation adjustment part 2, it is limited by the limiting platform 1-8 to keep the movement direction of the rotation adjustment part 2 consistent and prevent the rotation adjustment part 2 from deviating in the movement equation, which would affect the clamping of the brake 7 by the flip adjustment part 3. This achieves the positioning of the horizontal displacement when the brake 7 is placed vertically.

[0027] like Figure 1 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the rotation adjustment unit 2 includes a mounting bracket, which is mounted on the lower base frame 1-1 below the chain conveyor belt 1-3. A horizontally mounted transverse cylinder 2-5 is installed on one side of the mounting bracket near its bottom end face. A first slider 2-13 is connected to the piston head of the transverse cylinder 2-5. The transverse cylinder 2-5 drives the first slider 2-13 to move horizontally within the mounting bracket. A rotating component is provided on the first slider 2-13, and a rotating plate 2-6 is connected to the top of the rotating component. A tray 1-4 is placed on the upper end face; a first guide rail 2-14 is provided inside the mounting bracket at the position inside the transverse cylinder 2-5. The first guide rail 2-14 is arranged parallel to the transverse cylinder 2-5. A first slider 2-13 is slidably installed inside the first guide rail 2-14. Through the cooperation of the first guide rail 2-14 and the transverse cylinder 2-5, the first slider 2-13 can move horizontally and stably within the mounting bracket; a lifting cylinder 2-3 is vertically arranged on the side of the first guide rail 2-14 within the mounting bracket. Two lifting cylinders 2-3 are provided. The piston heads of the lifting cylinders 2-3 are vertically upward and extend vertically outward from the top end face of the mounting bracket. Lifting plates 2-4 are fixedly installed on the piston heads of the two lifting cylinders 2-3. The lifting plates 2-4 are parallel to the upper end face of the mounting bracket and are located between the mounting bracket and the rotating plate 2-6. In this device, the lifting cylinders 2-3 lift the lifting plates 2-4, thereby lifting the rotating plate 2-6, the tray 1-4, and the brake 7 to a certain height, so that the rotating plate 2-6 is released from the limit of the limiting platform 1-6. The transverse cylinder 2-5 drives the rotating component to rotate, so that the rotating plate 2-6 rotates to the specified position. At a certain angle, a photoelectric sensor 2-9 is installed on the upper surface of the mounting bracket. The slotted photoelectric sensor 2-9 detects the rotation angle. When the rotation reaches the specified angle, the transverse cylinder 2-5 stops working. A stop cylinder 2-1 is vertically installed at one end of the mounting bracket. The piston head of the stop cylinder 2-1 is vertically upward. A first limiter 2-2 is installed on the piston head of the stop cylinder 2-1. When the chain conveyor belt 1-3 is conveying the pallet 1-4, the first sensor 1-5 detects the pallet 1-4, and the stop cylinder 2-1 drives the first limiter 2-2 to lift up, stopping the pallet 1-4 and limiting and blocking it. like Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the rotating component includes a first toothed fixture 2-15 and a first gear 2-8. The first toothed fixture 2-15 and the first gear 2-8 mesh with each other. The first toothed fixture 2-15 is fixed to the upper end face of the first slider 2-13 and is parallel to the first slider 2-13. The first toothed fixture 2-15 is a rack. The first gear 2-8 is rotatably installed inside the mounting bracket on the side of the first guide rail 2-14. A rotating shaft 2-7 is concentrically connected to the upper end face of the first gear 2-8. The rotating shaft 2-7 is installed vertically, and the top end of the rotating shaft 2-7 extends from the upper end face of the mounting bracket to the outside of the mounting bracket. A telescopic adjustment rod is connected between the top end face of the rotating shaft 2-7 and the bottom end face of the rotating plate 2-6. The telescopic adjustment rod cooperates with the lifting cylinder 2-3 to make the lifting plate 2-4 and the rotating plate 2-6 rise and fall synchronously. Preferably, a plurality of support blocks 2-10 are provided on the upper end face of the rotating plate 2-6. The support blocks 2-10 are arranged in a matrix on the upper end face of the rotating plate 2-6. The top end face of the support blocks 2-10 is attached to the bottom end face of the tray 1-4 to support the tray 1-4. A positioning pin 2-11 is provided on the upper end face of the rotating plate 2-6 near one end. The positioning pin 2-11 is installed in the positioning hole provided on the tray 1-4 to position the tray 1-4 and improve the installation efficiency of the tray 1-4. An RFID chip 1-7 is provided on the bottom end face of the tray 1-4, and a corresponding RFID chip 1-7 is provided on the rotating plate 2-6. An RFID reader / writer 2-12 is installed at position -7. The RFID reader / writer 2-12 reads the current brake 7 information stored in the RFID chip 1-7 and transmits it to the equipment controller. When the information of brake 7 is normal, the equipment runs normally and performs a sliding force test. When abnormal information of brake 7 is detected, such as unprocessed previous workstation or unqualified test data from other previous workstations, the equipment will stop running and issue an alarm, displaying the cause of the error on the industrial control computer screen. This allows for initial screening of brake 7, filtering out brakes that are unqualified in other processes, thus avoiding the testing of unqualified products and affecting the testing efficiency of normal products.

[0028] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the flipping adjustment unit 3 includes a connecting frame 3-13. A mounting plate 3-3 is connected to one side end face of the connecting frame 3-13 near its bottom end face. A testing unit 6 is fixedly connected to the side end face of the mounting plate 3-3 away from the connecting frame 3-13. A second slider 3-2 is respectively provided on the bottom end face of the mounting plate 3-3 near its two ends. The two second sliders 3-2 are arranged in parallel. Two second guide rails 3-1 are arranged horizontally and in parallel inside the upper base frame 1-2. The length direction of the second guide rails 3-1 is parallel to that of the chain conveyor. The transmission directions of the two guide rails 3-1 are perpendicular to each other. The distance between the two second guide rails 3-1 is the same as the distance between the two second sliders 3-2. The second sliders 3-2 are slidably mounted inside the second guide rails 3-1. A first cylinder is connected to the second slider 3-2 and is fixed to the upper base frame 1-2. The first cylinder drives the second slider 3-2 to slide on the second guide rails 3-1. Through the cooperation between the second slider 3-2 and the second guide rails 3-1, the connecting frame 3-13 can move within the upper base frame 1-2. A third guide rail 3-11 is vertically arranged, and a third slider 3-12 is slidably connected within the third guide rail 3-11. A second cylinder is connected to the third slider 3-12, and the second cylinder is fixed inside the connecting frame 3-13. The second cylinder causes the third slider 3-12 to slide on the third guide rail 3-11. A guide plate is vertically connected to the end face of the third slider 3-12 away from the third guide rail 3-11. A fixed bracket 3-15 is connected to the bottom end face of the guide plate, and a drive cylinder 3-5 is installed inside the fixed bracket 3-15. The drive cylinder 3-5 is installed vertically, and the piston head of the drive cylinder 3-5 is vertically downward. A slide plate is connected to the piston head of the drive cylinder 3-5. The slide plate is horizontally slidably installed inside the fixed bracket 3-15. The two ends of the slide plate extend outward from the side of the fixed bracket 3-15. The lower end of the second toothed tool 3-9 is connected to the end of the slide plate. The lower end of the hydraulic buffer 3-16 is connected to the upper end of the second toothed tool 3-9. The upper end of the hydraulic buffer 3-16 is fixed on the fixed bracket 3-15.A second rotating shaft 3-6 is rotatably mounted on the fixed bracket 3-15 at the position of the second toothed fixture 3-9. A second gear 3-7 is rotatably mounted on the second rotating shaft 3-6, and the second gear 3-7 meshes with the second toothed fixture 3-9. A limit block 3-8 is provided on the outer wall of the second toothed fixture 3-9 to limit the vertical displacement of the second toothed fixture 3-9 and prevent excessive vertical displacement, which would disengage the second toothed fixture 3-9 from the second gear 3-7. A chuck bracket 3-14 is connected to the second rotating shaft 3-6 outside the second gear 3-7. The chuck bracket 3-14 rotates synchronously with the second gear 3-7. A chuck cylinder is mounted on the chuck bracket 3-14, and a chuck 3-4 is connected to the piston head of the chuck cylinder. The chuck 3-4 clamps the brake 7. The brake 7 is clamped in the clamping hole. In this device, the operation of the drive cylinder 3-5 drives the second toothed fixture 3-9 to move vertically. Then, through the fitting of the second gear 3-7 and the second toothed fixture 3-9, the chuck bracket 3-14 rotates, flipping the brake 7 held by the gripper 3-4 so that the brake 7 reaches a horizontal state. At the same time, a second sensor 3-10 is provided on the fixed bracket 3-15. The second sensor 3-10 is used to locate the moving position of the flipping adjustment part 3 on the upper base frame 1-2. That is, when the second slider 3-2 slides along the second guide rail 3-1, when the brake 7 held by the gripper 3-4 reaches directly above the guide positioning part 4, the second sensor 3-10 sends a signal to stop the first cylinder connected to the second slider 3-2.

[0029] like Figure 1 , Figure 2 and Figure 19 As shown, the testing unit 6 includes a connecting frame 6-3, which is fixed on the side end face of the mounting plate 3-3 away from the connecting frame 3-13. A guide rail mounting plate 6-7 is vertically arranged on the side end face of the connecting frame 6-3 away from the mounting plate 3-3. A fourth guide rail 6-6 is vertically arranged on the side end face of the guide rail mounting plate 6-7 away from the connecting frame 6-3. A third cylinder is connected to the fourth guide rail 6-6 and is fixed on the connecting frame 6-3. A guide slide plate 6-5 is slidably installed on the fourth guide rail 6-6. A connecting plate 6-4 is connected to the bottom end of the guide slide plate 6-5. A floating joint 6-2 and a test head 6-1 are installed on the connecting plate 6-4. The floating joint 6-2 is connected to the test head 6-1. In use, the test head 6-1 stably pulls the tail of the caliper to move it back and forth horizontally to perform a sliding force test.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the guide positioning part 4 includes a connecting base frame 4-1, which is fixed to the top of the lower base frame 1-1 and located on the side of the rotation adjustment part 2. A caliper support 4-4 is vertically arranged on the upper end face of the connecting base frame 4-1 near its center, and a brake 7 is supported on the top of the caliper support 4-4. A starting position baffle 4-9 is arranged on the upper end face of the connecting base frame 4-1 on one side of the caliper support 4-4, and a fixed position baffle 4-9 is arranged on the upper end face of the connecting base frame 4-1 on the other side of the caliper support 4-4. Positioning cylinder 4-6 is horizontally mounted on the upper end face of connecting base frame 4-1. A support stop 4-5 is connected to the piston head of positioning cylinder 4-6, and the support stop 4-5 is positioned relative to caliper support 4-4. A push-pull cylinder 4-8 is located on the side of positioning cylinder 4-6 on connecting base frame 4-1. A push-pull block 4-3 is connected to the piston head of push-pull cylinder 4-8, and push-pull block 4-3 is positioned relative to starting position baffle 4-9. A light displacement sensor 4-2 is located above push-pull cylinder 4-8, on the upper end face of connecting base frame 4-1. A positioning plate 4-7 is provided at one end of the brake 7, which is placed on the upper end face of the connecting base frame 4-1. In this embodiment, the positioning cylinder 4-6 drives the bracket stop 4-5 to move forward, so that one end of the bracket stop 4-5 relative to the caliper support 4-4 is in contact with the outer wall of the brake 7. At the same time, the push-pull block 4-3 pushes the caliper in the brake 7 horizontally forward to the position of the starting position baffle 4-9, that is, one end face of the brake 7 is in contact with the inner end of the starting position baffle 4-9. After the surfaces are aligned, the connecting plate 6-4 in the test section 6, under the action of the third cylinder and with the cooperation of the fourth guide rail 6-6 and the guide slide plate 6-5, descends to the position of the caliper. Then, the bracket stop 4-5 and the push-pull block 4-3 move backward, releasing the brake 7. The push-pull cylinder 4-8 drives the test head 6-1 to clamp the top of the caliper and pushes the bottom of the caliper to move horizontally back and forth to perform a sliding force test. The sliding data is captured by the laser displacement sensor 4-2, thereby accurately measuring the sliding force value of the brake 7. The test data is synchronously uploaded to the equipment controller.

[0031] like Figure 18 As shown, a conveying section 5 for conveying unqualified products is provided on the side of the lower base frame 1-1. The conveying section 5 includes a support frame 5-1. The length direction of the support frame 5-1 is parallel to the length direction of the second guide rail 3-1, and one end of the support frame 5-1 is located on the second guide rail 3-1 away from the rotation adjustment section 2. Multiple transmission rollers 5-2 are arranged parallel to each other near the top of the support frame 5-1. A conveyor belt 5-5 is provided on the multiple transmission rollers 5-2. When the brake 7 with unqualified sliding force is detected, the brake 7 and the tray 1-4 are placed on the conveyor belt 5-5 by flipping adjustment section 3. The equipment controller writes the unqualified information into the RFID chip 1-7 set on the current tray 1-4.

[0032] Preferably, a second limiter 5-4 is provided at one end of the support frame 5-1 away from the second guide rail 3-1. The second limiter 5-4 is used to detect whether the unqualified brake 7 on the conveyor belt 5-5 has left the conveyor and avoids excessive accumulation of brake 7 on the conveyor belt 5-5. An adjustable foot 5-6 is provided on the bottom end face of the support leg of the support frame 5-1. The levelness of the support frame 5-1 is adjusted by adjusting the foot 5-6.

[0033] This invention proposes an automatic testing method for the sliding force of a pneumatic disc brake, which utilizes the aforementioned automatic testing device for the sliding force of a pneumatic disc brake, and includes the following steps: Place the tray 1-4 with the brake 7 vertically placed on the rotation adjustment unit 2 and move it to the corresponding position in the mounting base 1. Adjust the brake 7 through the rotation adjustment unit 2 so that the clamping part on the brake 7 is aligned with the clamping structure in the flip adjustment unit 3. The flip adjustment unit 3 clamps the brake 7 and flips it 90° so that the brake 7 is in a horizontal state. Then, place it in the guide positioning unit 4 for fixation. The flip adjustment unit 3 drives the test unit 6 to move to the brake 7. The test unit 6 drives the tail of the brake 7 to move horizontally to test the sliding force of the brake 7.

[0034] Specifically, the brake 7 is placed on the tray 1-4, and the RFID chip 1-7 at the bottom of the tray 1-4 carries the processing information of the brake 7 in other processes. The tray 1-4 is placed on the chain conveyor belt 1-3 and moves on the lower base frame 1-1 via the chain conveyor belt 1-3, and is limited by the limit table 1-6. When it moves to the working position, after the first sensor 1-5 senses the tray 1-4, the first limiter 2-2 lifts up to block the tray 1-4. The lifting cylinder 2-3 is activated, raising the lifting plate 2-4 and the rotating plate 2-6 to lift the tray 1-4. The transverse cylinder 2-5 is activated, causing the first slider 2-13 to slide on the first guide rail 2-14. The first slider 2-13 drives the first toothed fixture 2-15 to move. Through the meshing of the first toothed fixture 2-15 with the first gear 2-8, the first gear 2-8 is rotated, thereby driving the first rotating shaft 2-7 to rotate. The first rotating shaft 2-7 drives the rotating plate 2-6 to rotate. The rotating plate 2-6 drives the tray 1-4 to rotate 180° around the rotating shaft 2-7 as the rotation center. During the rotation, the rotation angle is detected by the photoelectric sensor 2-9. At this time, the brake 7 is in a vertical state on the tray 1-4. Under the action of the cylinder, the second slider 3-2 in the flip adjustment section 3 moves forward horizontally along the second guide rail 3-1 to above the brake 7. Under the action of the cylinder, the third slider 3-12 moves downward along the third guide rail 3-11 and descends vertically to the position of the brake 7. The cylinder drives the gripper 3-4 to open and clamp the gripper 3-4 in the gripper clamping hole provided on the brake 7, thus clamping the brake 7. Under the action of the cylinder, the third slider 3-12 moves upward along the third guide rail 3-11 and lifts the brake 7 vertically from the tray 2. After the gripper 3-4 is vertically raised to a certain height, the second slider 3-2, under the action of the cylinder, moves horizontally backward a certain distance along the second guide rail 3-1. This drives the cylinder 3-5 to move the second toothed fixture 3-9 vertically. The second toothed fixture 3-9 causes the second gear 3-7 to rotate, which in turn drives the second rotating shaft 3-6 to rotate. The second rotating shaft 3-6 then rotates the gripper bracket 3-14 by 90°, flipping the brake 7 from a vertical to a horizontal position. Under the action of the cylinder, the second slider 3-2 moves horizontally backward along the second guide rail 3-1. The second guide rail 3-1 moves horizontally backward until the second sensor 3-10 generates a signal. Then, the brake 7 is positioned above the guide positioning part 4. Under the action of the cylinder, the third slider 3-12 moves downward along the third guide rail 3-11, placing the brake 7 on the caliper support 4-4 on the upper surface of the connecting base 4-1. After the gripper 3-4 releases the brake 7, the third slider 3-12 moves upward along the third guide rail 3-11 under the action of the cylinder, returning to the initial state. At the same time, the gripper 3-4 returns to the initial state. Positioning cylinder 4-6 moves bracket stop 4-5 forward so that one end of bracket stop 4-5 relative to caliper support 4-4 fits against the outer wall of brake 7. At the same time, push-pull block 4-3 pushes the caliper in brake 7 horizontally forward to the position of starting baffle 4-9, that is, one side of brake 7 fits against the inner side of starting baffle 4-9. Push-pull block 4-3 moves backward to release the caliper. Third cylinder pushes guide slide plate 6-5 to slide on fourth guide rail 6-6 so that connecting plate 6-4 moves downward to lower test head 6-1 to the caliper position. Push-pull cylinder 4-8 drives test head 6-1 to clamp the top of caliper and pushes the bottom of caliper to move horizontally back and forth to perform sliding force test. The sliding data is captured by laser displacement sensor 4-2 to accurately measure the sliding force value of brake 7. The test data is synchronously uploaded to the equipment controller. When the test result is qualified, the sliding force test is completed. The test head 6-1 releases the caliper, the test head mechanism 6 rises back to its original position, the bracket stop 4-5 and the push-pull block 4-3 move forward to fix the brake 7. Under the action of the cylinder, the second slider 3-2 in the flip adjustment section 3 moves forward horizontally along the second guide rail 3-1 to above the brake 7. Under the action of the cylinder, the third slider 3-12 moves downward along the third guide rail 3-11 and descends vertically to the position of the brake 7. The cylinder drives the gripper 3-4 to open and clamp the gripper 3-4 in the gripper clamping hole provided on the brake 7, thus clamping the brake 7. The bracket stop 4-5 and the push-pull block 4-3 move backward to release and fix the brake 7. Under the action of the cylinder, the third slider 3-12 moves upward along the third guide rail 3-11 and lifts the brake 7 vertically from the caliper support 4-4 on the upper end face of the connecting base frame 4-1. The gripper 3-4 lifts the brake 7 horizontally away from the guide positioning section 4. The flipping adjustment unit 3 moves the brake 7 horizontally forward to above the tray 2. Then the gripper 3-4 descends vertically to put the brake 7 back onto the tray 1-4. The gripper 3-4 releases and returns to its initial position. At this time, the brake 7 is in a horizontal state on the tray 1-4. After the above actions are completed, the first limit switch 2-2 retracts, and the tray 1-4 carries the product into the next workstation.

[0035] When the sliding force test fails, the test head 6-1 releases the caliper, the test head mechanism 6 rises back to its original position, the bracket stop 4-5 and the push-pull block 4-3 move forward to fix the brake 7. Under the action of the cylinder, the second slider 3-2 in the flip adjustment section 3 moves forward horizontally along the second guide rail 3-1 to above the brake 7. Under the action of the cylinder, the third slider 3-12 moves downward along the third guide rail 3-11 and descends vertically to the position of the brake 7. The cylinder drives the gripper 3-4 to open and clamp the gripper 3-4 in the gripper clamping hole provided on the brake 7, thus clamping the brake 7. The bracket stop 4-5 and the push-pull block 4-3 move backward to release and fix the brake 7. Under the action of the cylinder, the third slider 3-12 moves upward along the third guide rail 3-11 and lifts the brake 7 vertically from the caliper support 4-4 on the upper end face of the connecting base frame 4-1. The gripper 3-4 lifts the brake 7 horizontally away from the guide positioning section 4. The flipping adjustment unit 3 moves the brake 7 horizontally forward onto the conveyor belt 5-5 in the conveyor unit 5. The defective brake 7 flows away on the conveyor belt 5-5. The equipment controller writes the defective information into the RFID chip 1-7 set on the current pallet 1-4. The first limiter 2-2 retracts and the pallet 2 flows away.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. An automatic testing device for the sliding force of a pneumatic disc brake, characterized in that, Includes a mounting base (1), on which a rotation adjustment part (2) is provided for supporting a tray (1-4) on which the brake (7) is placed, and for rotating the tray (1-4) horizontally. The mounting base (1) is provided with a flip adjustment part (3) above the rotation adjustment part (2), which is used to vertically lift and flip the brake (7) after adjustment in the rotation adjustment part (2) by 90° so that the brake (7) is in a horizontal state. The mounting base (1) is provided with a guide positioning part (4) located on the side of the rotation adjustment part (2) for fixing the brake (7) in a horizontal state. The bottom of the flip adjustment part (3) is provided with a test part (6) for testing the sliding force of the brake (7); The mounting base (1) includes a lower base (1-1) and an upper base (1-2), wherein the upper base (1-2) is fixed above the lower base (1-1); The flip adjustment part (3) includes a connecting frame (3-13), on which a mounting plate (3-3) and a testing part (6) are connected. A second slider (3-2) is provided on the mounting plate (3-3) near its two ends. The second slider (3-2) is slidably mounted on a second guide rail (3-1) provided on the upper base frame (1-2). The testing unit (6) includes a connecting frame (6-3), which is fixed on the connecting frame (3-13). A fourth guide rail (6-6) is provided on the connecting frame (6-3), and a guide slide plate (6-5) is slidably installed on the fourth guide rail (6-6). A connecting plate (6-4) is connected to the bottom end of the guide slide plate (6-5). A floating joint (6-2) and a test head (6-1) are installed on the connecting plate (6-4), and the floating joint (6-2) is connected to the test head (6-1).

2. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 1, characterized in that, A chain conveyor belt (1-3) is provided on the lower base frame (1-1). The rotation adjustment part (2) is installed in the lower base frame (1-1) below the chain conveyor belt (1-3). A first sensor (1-5) for positioning is provided in the lower base frame (1-1). A limiting platform (1-6) is provided on the side of the rotation adjustment part (2) on the chain conveyor belt (1-3).

3. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 2, characterized in that, The rotation adjustment part (2) includes a mounting bracket, which is installed in the lower base frame (1-1) below the chain conveyor belt (1-3). A transverse cylinder (2-5) is installed in the mounting bracket. A first slider (2-13) is connected to the piston head of the transverse cylinder (2-5). A rotating part is provided on the first slider (2-13). A rotating plate (2-6) is connected to the top of the rotating part. The tray (1-4) is placed on the top of the rotating plate (2-6). The mounting bracket is provided with a first guide rail (2-14) located inside the transverse cylinder (2-5), and the first slider (2-13) is slidably mounted on the first guide rail (2-14). A lifting cylinder (2-3) is vertically installed inside the mounting bracket. A lifting plate (2-4) is installed on the piston head of the lifting cylinder (2-3). The lifting plate (2-4) is located between the mounting bracket and the rotating plate (2-6). A photoelectric sensor (2-9) is provided on the upper surface of the mounting bracket. A stop cylinder (2-1) is vertically installed inside the mounting bracket, and a first limiter (2-2) is installed on the piston head of the stop cylinder (2-1).

4. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 3, characterized in that, The rotating component includes a first toothed fixture (2-15) and a first gear (2-8). The first toothed fixture (2-15) and the first gear (2-8) mesh with each other. The first toothed fixture (2-15) is fixed on the first slider (2-13). The first gear (2-8) is rotatably mounted in the mounting bracket. A rotating shaft (2-7) is concentrically connected to the first gear (2-8). A telescopic adjustment rod is connected between the top end face of the rotating shaft (2-7) and the bottom end face of the rotating plate (2-6).

5. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 3, characterized in that, The top of the rotating plate (2-6) is provided with a support block (2-10) and a positioning pin (2-11), and the top of the support block (2-10) is attached to the bottom end face of the tray (1-4); The positioning pin (2-11) is installed in the positioning hole provided on the tray (1-4); An RFID chip (1-7) is provided on the bottom end face of the tray (1-4), and an RFID reader / writer head (2-12) is provided on the rotating plate (2-6) at the position corresponding to the RFID chip (1-7).

6. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 2, characterized in that, The connecting frame (3-13) is provided with a third guide rail (3-11), a third slider (3-12) is connected to the third guide rail (3-11), a guide plate is connected to the third slider (3-12), a fixed bracket (3-15) is connected to the bottom end face of the guide plate, a driving cylinder (3-5) is installed in the fixed bracket (3-15), a second toothed tool (3-9) is connected to the piston head of the driving cylinder (3-5), a hydraulic buffer (3-16) is connected to the second toothed tool (3-9), and the hydraulic buffer (3-16) is installed on the fixed bracket (3-15). A second gear (3-7) is rotatably mounted on the fixed bracket (3-15) at the position of the second toothed tool (3-9), and the second gear (3-7) meshes with the second toothed tool (3-9); The second gear (3-7) is connected to a claw bracket (3-14), and a claw cylinder is installed on the claw bracket (3-14). A gripper (3-4) is connected to the piston head of the claw cylinder.

7. The automatic testing device for the sliding force of a pneumatic disc brake according to claim 2, characterized in that, The guide positioning part (4) includes a connecting base frame (4-1), which is fixed to the top of the lower base frame (1-1). A caliper support (4-4) is provided on the connecting base frame (4-1), and the top of the caliper support (4-4) supports the brake (7). A starting position baffle (4-9) is provided on one side of the caliper support (4-4) on the connecting base frame (4-1), and a positioning cylinder (4-6) is provided on the other side of the caliper support (4-4). A bracket stop (4-5) is connected to the piston head of the positioning cylinder (4-6), and the bracket stop (4-5) is opposite to the caliper support (4-4). A push-pull cylinder (4-8) is provided on the side of the positioning cylinder (4-6) on the connecting base frame (4-1). A push-pull block (4-3) is connected to the piston head of the push-pull cylinder (4-8). The push-pull block (4-3) is opposite to the starting position baffle (4-9). A light displacement sensor (4-2) is installed above the push-pull cylinder (4-8).

8. An automatic testing device for the sliding force of a pneumatic disc brake according to claim 6, characterized in that, The lower base frame (1-1) is provided with a conveying section (5) for conveying unqualified products. The conveying section (5) includes a support frame (5-1). The support frame (5-1) is located on one side of the second guide rail (3-1). Multiple transmission rollers (5-2) are arranged parallel to the top of the support frame (5-1). A transmission belt (5-5) is provided on the multiple transmission rollers (5-2).

9. An automatic method for testing the sliding force of a pneumatic disc brake, using the automatic testing device for the sliding force of a pneumatic disc brake as described in any one of claims 1 to 8, characterized in that... Includes the following steps: Place the tray (1-4) with the brake (7) placed vertically on the rotation adjustment part (2), move it to the corresponding position in the mounting base (1), and adjust the brake (7) through the rotation adjustment part (2) so that the clamping part on the brake (7) is aligned with the clamping structure in the flip adjustment part (3); The flip adjustment part (3) clamps the brake (7) and flips it 90° so that the brake (7) is in a horizontal state, and then it is placed in the guide positioning part (4) for fixing. The flip adjustment unit (3) drives the test unit (6) to move to the brake (7), and the test unit (6) drives the tail of the brake (7) to move horizontally to test the sliding force of the brake (7).

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