Gas-liquid dual-control movable clamp comprehensive performance detection system and device

Abstract

The invention relates to the technical field of brake caliper detection, and discloses a gas-liquid dual-control movable caliper comprehensive performance detection system and equipment, the gas-liquid dual-control movable caliper comprehensive performance detection system comprises an equipment main body and an experiment table, the front side of the equipment main body is provided with an operation table, the experiment table is located in the equipment main body, and the upper part of the rear side of the equipment main body is provided with a hydraulic block. By means of the hydraulic block and the pneumatic control block which are independently designed, hydraulic and pneumatic double-working-condition driving of the brake caliper can be achieved through pipeline switching, and parameter detection of hydraulic sealing performance and pneumatic dragging torque can be completed at the same time; the function limitation that traditional detection equipment can only meet single working condition detection is solved, the detection requirements of brake calipers of different power types can be met without replacing the equipment, and the detection scene coverage range is greatly expanded.

Description

Technical Field

[0001] This invention relates to the field of brake caliper testing technology, specifically to a comprehensive performance testing system and equipment for pneumatic-hydraulic dual-control brake calipers. Background Technology

[0002] In the field of brake caliper manufacturing and quality inspection, brake calipers are core braking components whose performance directly affects vehicle driving safety. They need to be tested through multi-dimensional parameters to ensure product qualification. Currently, brake calipers on the market are mainly divided into two types: hydraulic drive type and pneumatic drive type, and the corresponding testing requirements are diverse.

[0003] However, existing brake caliper testing equipment has significant technical limitations: On the one hand, traditional testing equipment is mostly designed for a single working condition, and can only be adapted to the testing of one type of brake caliper, either hydraulic or pneumatic. When it is necessary to test brake calipers of different power types, it is necessary to replace them with dedicated testing equipment, which not only increases the cost of equipment investment, but also leads to cumbersome testing procedures and limited coverage of testing scenarios. On the other hand, the functional modules of existing testing equipment are relatively scattered. For key performance parameters such as drag torque, caliper rigidity, piston sliding resistance, and EPB clamping force, it is often necessary to use multiple independent devices or repeatedly disassemble and assemble the workpiece to adjust the testing station to complete all testing items. This is not only complex to operate and requires a lot of manual intervention, but also results in low testing efficiency.

[0004] Therefore, we propose a gas-liquid dual-control braking clamp comprehensive performance testing system and equipment to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a comprehensive performance testing system and equipment for a gas-liquid dual-control braking clamp.

[0006] This invention is achieved using the following technical solution: a main body of equipment and an experimental platform. An operating platform is located on the front side of the main body of equipment. The experimental platform is located inside the main body of equipment. A hydraulic block is located on the upper rear side of the main body of equipment, and a pneumatic control block is located on the lower rear side of the main body of equipment. The experimental platform includes a tooling base. A torque detection mechanism is fixedly connected to one end of the tooling base. A servo motor is located at one end of the torque detection mechanism, and a brake disc is assembled to one end of the torque detection mechanism. A brake caliper is located on the top of the brake disc. The top of the brake caliper is connected to either the hydraulic block or the pneumatic control block via pipes. The top of the tooling base is fixedly connected to... A first fixed frame is provided, and two rigid detection mechanisms are provided on both sides of the first fixed frame. The bottom of the rigid detection mechanism is fixedly connected to a movable seat, and the movable seat is movably connected to the top of the tooling base. The rigid detection mechanism includes a displacement sensor and a fixed column. The fixed column is fixedly connected to the top of the movable seat. An adjustment handle is provided on one side of the fixed column, and an adjustment column is movably connected to the top of the fixed column. A second fixed frame is fixedly connected to one end of the top of the tooling base. A movable platform is provided on one side of the second fixed frame, and the movable platform is movably connected to the top of the tooling base. A force detection mechanism is movably connected to the top of the movable platform.

[0007] Preferably, the top of the tooling base is fixedly connected to two first slide rails, and the bottom of the movable seat is fixedly connected to two first sliders, with the first sliders slidably connected to the top of the first slide rails.

[0008] Preferably, the bottom of the movable platform is fixedly connected to two second sliders, which are slidably connected to the top of the first slide rail.

[0009] Preferably, the top of the movable platform is fixedly connected to two second slide rails, and the bottom of the force detection mechanism is fixedly connected to two third sliders, which are slidably connected to the top of the second slide rails.

[0010] Preferably, the force detection mechanism includes a housing and a motor. The motor is mounted on one end of the housing, and a tension / compression sensor is provided at one end of the motor. A drive shaft is assembled and connected to one end of the tension / compression sensor.

[0011] Preferably, a grating ruler is fixedly connected to the top of the adjusting column, and two mounting sliders are movably connected to the top of the grating ruler. The displacement sensor is fixedly connected to the top of the mounting sliders.

[0012] Preferably, the steps include the following: S1: Adaptive tooling installation and workpiece clamping According to the model of the brake caliper to be tested, select the corresponding adaptive fixture to install on the fixture base of the test bench, tighten the fixing bolts and check the runout of the brake disc end face, clean the brake caliper and mark it with a unique number, fix it in the designated position of the fixture according to the vehicle installation simulation state, and ensure that the clearance between the brake caliper and the brake disc meets the test standard and there is no jamming. S2: Gas-liquid circuit connection and pretreatment Selectively connect the top pipe of the brake caliper to the hydraulic block or the pneumatic block, ensuring that the interface is sealed and leak-free. Activate the system's venting function to expel residual air from the hydraulic and pneumatic circuits respectively. Perform zero-point calibration on the torque detection mechanism, tension / compression sensor, displacement sensor, and grating ruler to confirm that there is no jamming in the moving parts' seats, moving platforms, and adjusting columns, and that the brake caliper is in the released state. S3: Operating Condition Setting and Parameter Input Select the brake caliper model to be tested and the corresponding test items through the control panel, including drag torque, caliper body rigidity and piston sliding resistance. Input the preset pressure, brake disc speed and load test parameters. After saving the parameter scheme, start the system self-test process to confirm that the functions of each module in the main body of the equipment are normal. S4: Multi-station automatic detection Torque detection: The hydraulic or pneumatic control block inputs air / hydraulic pressure to the brake caliper according to the set working conditions, the servo motor drives the brake disc to rotate at a constant speed, and the torque detection mechanism collects drag torque data in real time. Rigidity testing: The hydraulic or pneumatic block applies a preset pressure to the brake caliper, the displacement sensor collects the brake caliper deformation data, and the caliper body rigidity is calculated by combining the pressure value; Force detection: The motor of the start force detection mechanism drives the transmission shaft to apply a preset load to the brake caliper assembly slide block and piston slide block. The tension and compression sensors collect force data and record the piston sliding resistance and EPB clamping force parameters. S5: Data Processing and Result Output After the test is completed, the system automatically analyzes the collected pressure, torque and displacement data, compares them with standard thresholds to determine the test results, and generates a test report containing the product number, test items, measured data and judgment conclusions. The system supports data storage, query and printing of paper reports. Qualified workpieces are marked and transferred, while unqualified workpieces are transferred to the rework process.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention, through independently designed hydraulic and pneumatic control blocks, can achieve dual-condition hydraulic and pneumatic drive of the brake caliper via pipeline switching. It can simultaneously perform multiple parameter tests such as hydraulic sealing and pneumatic drag torque, solving the functional limitations of traditional testing equipment that can only meet single-condition testing. It can adapt to the testing needs of brake calipers of different power types without changing the equipment.

[0014] This invention integrates three core detection modules: a torque detection mechanism, a rigidity detection mechanism, and a force detection mechanism. Through three stations, it can complete the detection of key performance parameters such as drag torque, clamp rigidity, piston sliding resistance, and EPB clamping force. It eliminates the need for manual disassembly and reassembly of workpieces to adjust the detection stations, resulting in higher detection efficiency.

[0015] This invention allows for the adjustment of the handle to raise or lower the height of the displacement sensor, enabling rapid adaptation to the testing needs of different models and sizes of brake calipers without requiring the replacement of the entire tooling set, thus reducing equipment adaptation costs. The displacement sensor simultaneously collects deformation data from both sides of the brake caliper, eliminating unilateral detection errors through data comparison. This results in higher detection accuracy and stronger data reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the main body of the device according to the present invention; Figure 3 This is a schematic diagram of the specific structure of the experimental platform of the present invention; Figure 4 This is a schematic diagram of the top structure of the tooling base of the present invention; Figure 5 This is a schematic diagram of the specific structure of the rigid detection mechanism of the present invention; Figure 6 This is a schematic diagram of the specific structure of the force detection mechanism of the present invention.

[0017] In the diagram: 1. Main body of the equipment; 2. Experimental table; 3. Operating table; 4. Hydraulic block; 5. Pneumatic control block; 6. Tooling base; 7. Servo motor; 8. Torque detection mechanism; 9. Brake disc; 10. Brake caliper; 11. Rigidity detection mechanism; 1101. Displacement sensor; 1102. Fixed column; 1103. Adjusting handle; 1104. Adjusting column; 1105. Grating ruler; 1106. Mounting slider; 12. Movable seat; 13. First fixed frame; 14. Second fixed frame; 15. Movable platform; 16. Force detection mechanism; 1601. Housing; 1602. Motor; 1603. Tension / compression sensor; 1604. Drive shaft; 17. First slide rail; 18. First slider; 19. Second slider; 20. Second slide rail; 21. Third slider. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] Example 1: Please refer to Figure 1 - Figure 5 This embodiment of a pneumatic-hydraulic dual-control clamp comprehensive performance testing system and equipment includes a main body 1 and an experimental platform 2. An operating platform 3 is provided on the front side of the main body 1, the experimental platform 2 is located inside the main body 1, a hydraulic block 4 is provided on the upper rear side of the main body 1, and a pneumatic control block 5 is provided on the lower rear side of the main body 1. The main body 1 is an integral support structure used to integrate and fix various functional modules, ensuring the stability of equipment operation; the test bench 2 is the core working area for brake caliper testing, where all workstation testing actions are completed; the operating console 3 serves as the human-machine interface core, with built-in control software and a PLC control module, enabling operations such as parameter setting, test initiation, and data viewing. Operators issue commands and receive feedback information from the equipment through this module; the hydraulic block 4 provides a stable pressure source required for hydraulic testing, and the pneumatic control block 5 provides pneumatic testing power. The two are designed independently but can be connected via pipelines to meet the dual-condition testing requirements of pneumatic and hydraulic systems, solving the problem of the limitations of traditional single-condition testing functions.

[0020] Among them, the experimental platform 2 includes a tooling base 6, one end of which is fixedly connected to a torque detection mechanism 8, one end of which is equipped with a servo motor 7, one end of which is assembled with a brake disc 9, and the top of the brake disc 9 is equipped with a brake caliper 10, and the top of the brake caliper 10 is connected to the hydraulic block 4 or the pneumatic control block 5 through pipes respectively. The tooling base 6 provides an installation reference surface for each testing component, ensuring the positioning accuracy of the components. The servo motor 7 provides power for the rotation of the brake disc 9 and can precisely adjust the speed to simulate the working conditions of the brake caliper 10 during actual operation. The torque detection mechanism 8 has a built-in torque sensor to collect drag torque data during the rotation of the brake disc 9 in real time. The brake caliper 10 is selectively connected to the hydraulic block 4 or the pneumatic control block 5 through pipes to realize clamping action driven by hydraulic or pneumatic pressure. The cooperation between the brake disc 9 and the brake caliper 10 simulates the actual braking scenario, thereby completing the detection of core parameters such as drag torque and sealing performance. The modular connection design makes it easy to replace the brake disc 9 with a suitable one according to different models of brake calipers.

[0021] Secondly, a first fixed frame 13 is fixedly connected to the top of the tooling base 6. Two rigid detection mechanisms 11 are provided on both sides of the first fixed frame 13. A movable seat 12 is fixedly connected to the bottom of the rigid detection mechanism 11. The movable seat 12 is movably connected to the top of the tooling base 6. The rigid detection mechanism 11 includes a displacement sensor 1101 and a fixed column 1102. The fixed column 1102 is fixedly connected to the top of the movable seat 12. An adjustment handle 1103 is provided on one side of the fixed column 1102. An adjustment column 1104 is movably connected to the top of the fixed column 1102. The first fixed frame 13 is used to place the brake caliper 10 to ensure structural stability during testing. The movable seat 12 can drive the rigid testing mechanism 11 to move as a whole, so that the displacement sensor 1101 contacts the testing surface of the brake caliper 10, which is convenient to adapt to the testing needs of brake calipers 10 of different sizes. The fixed column 1102 provides installation support for the adjusting column 1104. The adjusting handle 1103 is driven by a worm gear. When rotated, it can drive the adjusting column 1104 to move up and down, thereby adjusting the height of the displacement sensor 1101, so that the displacement sensors 1101 on both sides are at the same height and located on the same axis. During testing, the brake caliper 10 is deformed by hydraulic or pneumatic driving. The displacement sensor 1101 collects the deformation data in real time. Combined with the applied pressure value, the rigidity parameters of the caliper body are calculated.

[0022] Furthermore, a second fixed frame 14 is fixedly connected to one end of the top of the tooling base 6, and a movable platform 15 is provided on one side of the second fixed frame 14. The movable platform 15 is movably connected to the top of the tooling base 6, and a force detection mechanism 16 is movably connected to the top of the movable platform 15. The second fixed frame 14 provides limit and support for the movable table 15. The movable table 15 can slide along the tooling base 6 to realize the position adjustment of the force detection mechanism 16, ensuring that the force detection mechanism 16 is precisely aligned with the detection interface of the brake caliper 10. The force detection mechanism 16 is the core component for detecting parameters such as piston sliding resistance and EPB clamping force. By adjusting the position of the movable table 15, it can adapt to the detection requirements of different models of brake calipers and ensure the accuracy of force transmission during the detection process.

[0023] Furthermore, the top of the tooling base 6 is fixedly connected to two first slide rails 17, and the bottom of the movable seat 12 is fixedly connected to two first sliders 18. The first sliders 18 are slidably connected to the top of the first slide rails 17. The first slide rails 17 and the first sliders 18 constitute a sliding guide mechanism. The high-precision linear slide rail design reduces the friction when the movable seat 12 moves, ensuring the smoothness of the movement and the positioning accuracy of the movable seat 12. This structure allows the rigid detection mechanism 11 to flexibly adjust its position and accurately align with the detection area of ​​the brake caliper 10. At the same time, the clearance between the slide rail and the slider is extremely small, which can avoid the impact of component shaking on the accuracy of the detection data during the detection process.

[0024] Furthermore, the bottom of the movable platform 15 is fixedly connected to two second sliders 19, which are slidably connected to the top of the first slide rail 17. The second sliders 19 cooperate with the first slide rail 17 to realize the horizontal movement of the movable platform 15 along the tooling base 6. This design shares the first slide rail 17 with the movable seat 12, which simplifies the equipment structure and ensures the straightness and stability of the movement of the movable platform 15. By adjusting the position of the movable platform 15, the force detection mechanism 16 can be accurately aligned with the piston or assembly slide of the brake caliper 10, providing a precise positioning basis for subsequent force value detection.

[0025] Furthermore, the top of the movable platform 15 is fixedly connected to two second slide rails 20, and the bottom of the force detection mechanism 16 is fixedly connected to two third sliders 21. The third sliders 21 are slidably connected to the top of the second slide rails 20. The second slide rails 20 and the third sliders 21 can achieve precise positioning of the force detection mechanism 16 on the top of the movable platform 15. Since there are slight differences in the detection interface position of different models of brake calipers, the lateral position of the force detection mechanism 16 can be further adjusted through this fine-tuning structure to ensure that the drive shaft 1604 and the detection interface of the brake caliper 10 are fully engaged, avoiding data errors caused by force deviation during detection. At the same time, the second slide rails 20 are equipped with limiting devices at both ends, and the third sliders 21 are equipped with sliding locking components on the outside. After positioning, they can be locked and fixed to prevent the components from shifting during the detection process.

[0026] Furthermore, the force detection mechanism 16 includes a housing 1601 and a motor 1602. The motor 1602 is mounted on one end of the housing 1601, and a tension / compression sensor 1603 is provided on one end of the motor 1602. A drive shaft 1604 is assembled and connected to one end of the tension / compression sensor 1603. The housing 1601 provides protection and mounting support for the internal components of the force detection mechanism 16. The motor 1602 provides power for detection, accurately outputting torque and converting it into linear driving force to drive the drive shaft 1604 to perform reciprocating tension / compression motion. The tension / compression sensor 1603 is used to collect the force value data applied by the drive shaft 1604 to the piston slide or assembly slide of the brake caliper 10 in real time, with an accuracy of ±0.05 N·m, ensuring the accuracy of the detection data.

[0027] Furthermore, a grating ruler 1105 is fixedly connected to the top of the adjusting column 1104, and two mounting sliders 1106 are movably connected to the top of the grating ruler 1105. The displacement sensor 1101 is fixedly connected to the top of the mounting sliders 1106. As a high-precision displacement measuring element, the grating ruler 1105 can provide real-time feedback on the lifting height of the adjusting column 1104. Together with the adjusting handle 1103, it can achieve precise positioning of the displacement sensor 1101, with a positioning accuracy of up to the micrometer level. The mounting sliders 1106 can slide along the top of the grating ruler 1105 to adjust the distance between the two displacement sensors 1101, so that the displacement sensors 1101 can be aligned with both sides of the same axis of the brake caliper 10, and simultaneously collect deformation data from both sides. By comparing the data, the error of single-sided detection is eliminated, and the accuracy and reliability of the caliper rigidity detection are improved.

[0028] The operation steps of the detection system are as follows: (1) Preparation before testing: Adaptive fixture installation: Based on the model of the brake caliper 10 to be tested, install the corresponding adaptive fixture onto the fixture base 6 of the test bench 2 using the quick-change positioning pin, and tighten the fixing bolts to ensure that the fixture is installed firmly without loosening; after installation, use a dial indicator to check the runout of the brake disc 9 end face, which must be controlled within 0.1mm. If it exceeds the range, fine-tune the fixture position until it meets the standard.

[0029] Workpiece processing and clamping: Clean the test brake caliper 10 to remove surface oil and impurities, and mark it with a unique number using a coding machine for easy data traceability; hoist the brake caliper 10 to the designated position of the tooling and fix it according to the vehicle loading simulation state to ensure that the fit clearance between the brake caliper 10 and the brake disc 9 meets the testing standards and there is no jamming.

[0030] Auxiliary connection confirmation: Check that the pipe interfaces of the brake caliper 10 and the hydraulic block 4 and the pneumatic control block 5 are tightly connected and there is no risk of leakage; confirm that the grating ruler 1105 and the mounting slider 1106 and adjusting column 1104 of the rigidity detection mechanism 11 are linked normally, and that the displacement sensor 1101, the torque detection mechanism 8 and the detection contact of the brake caliper 10 are aligned.

[0031] (2) Preprocessing operations: System venting operation: Switch to the manual control interface, click the "Hydraulic venting" button, start the hydraulic supply unit, slowly open the valve of hydraulic block 4 to vent the residual air in the pipeline, and close the valve after no more bubbles are continuously discharged from the observation window; similarly, complete the venting operation of the pipeline in pneumatic control block 5 to ensure that the gas / liquid path is unobstructed and there is no air interference with the detection accuracy. Zero calibration operation: Select the "Sensor Zero Calibration" function in the manual interface, and perform zero-point calibration on the torque detection mechanism 8, tension / compression sensor 1603, displacement sensor 1101, and grating ruler 1105 in sequence to ensure that the reading of each detection element is 0 under no-load conditions; after calibration, click "Save Calibration Data" and the system records the current calibration parameters for subsequent detection data correction; Status Reset Confirmation: Check that the brake caliper 10 is in the released state, the brake disc 9 can rotate freely, and there is no jamming in the moving parts such as the movable seat 12, movable platform 15, and adjusting column 1104; return to the test interface and confirm that the software displays the prompt "Preprocessing completed, test can be started".

[0032] (3) Automatic detection operation: Test Start Confirmation: Click the "Start" button on the test interface. The system will pop up a "Test Parameter Confirmation" window. Check the key information such as product model, test items, and test pressure again. After confirming that there are no errors, click "Confirm Start". The system will lock the parameters and start the three-station test process in the preset order. First station: Dragging torque detection Working condition simulation: The PLC control module drives the air / liquid supply unit to switch to the corresponding detection mode, air pressure or hydraulic pressure, and inputs the preset pressure of gas or liquid into the brake caliper 10; at the same time, the servo motor 7 is started, which drives the brake disc 9 to rotate at a set speed, such as 50r / min, through the transmission structure, to simulate the actual working condition of the brake caliper 10 clamping the brake disc 9 and maintaining the pressure stable for 30s. Data acquisition: The torque detection mechanism 8 collects the drag torque data during the rotation of the brake disc 9 in real time, and the pressure sensor records the real-time pressure value of the air / liquid circuit simultaneously. The data is transmitted to the data acquisition module for storage at a frequency of 10ms / time. If the torque value exceeds the preset fluctuation range during the detection process, the system automatically records the abnormal node and continuously monitors it. Second station: Displacement and rigidity detection Working condition simulation: After placing the brake caliper 10 on top of the first fixed frame 13, move the two movable seats 12 to make them in close contact with the detection surface of the brake caliper 10. The adjusting handle 1103 automatically makes fine adjustments, and the adjusting column 1104 drives the grating ruler 1105 to move up and down, so that the displacement sensors 1101 on both sides are at the same height and located on the same axis. The air / liquid supply unit inputs a preset pressure to the brake caliper 10 to simulate the load state in actual work, and continuously pressurizes to the set pressure value and maintains it. Data acquisition: Displacement sensor 1101 collects deformation displacement data of brake caliper 10 in real time and accurately calculates parameters such as caliper body rigidity; Third station: Force detection; Working condition simulation: After the brake caliper 10 is placed on top of the second fixed frame 14, the second slider 19 at the bottom of the movable platform 15 is finely positioned along the first slide rail 17 to ensure that the drive shaft 1604 of the force detection mechanism 16 is aligned with the detection interface of the brake caliper 10; the motor 1602 of the force detection mechanism 16 is started, which drives the tension and compression sensor 1603 and the drive shaft 1604 to perform reciprocating tension and compression motion through the transmission structure, applying a preset load to the assembly slide group and piston slide group of the brake caliper 10; Data acquisition: The tension / compression sensor 1603 acquires force data (range 0-50kN, accuracy ±0.05N・m) in real time during the loading process, and simultaneously records parameters such as piston sliding resistance and EPB clamping force; the pressure sensor monitors the gas / liquid auxiliary pressure to ensure the stability of the loading process, and all data is transmitted to the data acquisition module in real time; Abnormal handling mechanism: If any abnormal situation occurs during the detection process at any workstation, such as excessive pressure, interruption of sensor signal, or component jamming, the system will immediately activate the protection program, cut off the gas / liquid supply and power to servo motor 7 and motor 1602, pop up an abnormal alarm window and record the fault workstation and fault point; after the operator has investigated the fault, he / she can choose "continue detection" or "re-detect".

[0033] (4) Data analysis and result output: Data processing and pass / fail determination: After all test items are completed, the PLC control module calls the QC / T592-2013 standard threshold and gas-liquid correlation model, such as Y=2.4X+0.02, where Y is the hydraulic drag torque and X is the pneumatic drag torque, to comprehensively analyze the collected pressure, torque, displacement and other data; it then determines whether each test item meets the standard and generates a "pass / fail" conclusion and a list of unqualified items.

[0034] Results display and data storage: The main control interface of console 3 displays a real-time summary table of test results, including product number, test items, measured data, standard value range, judgment conclusion, and other information; all raw data and analysis reports are automatically stored in the system database and archived in the format of "product model, test date, product number", supporting long-term traceability.

[0035] Report printing and workpiece transfer: Operators can use the "Data Query" function to search for the corresponding test report by product number, test date, and other conditions. After confirming that the information is correct, click "Print" to output a paper report, which includes test parameters, data curves, judgment conclusions, calibration records, etc. After the qualified brake calipers 10 are affixed with a qualified label, they are transferred to the next process. Unqualified products are marked with unqualified items and transferred to the rework process. After rework, the entire process test must be performed again.

[0036] Working principle: Stable hydraulic and pneumatic power is provided by the hydraulic block 4 and pneumatic control block 5 on the rear side of the main body 1, respectively. They are selectively connected to the brake caliper 10 through pipelines to meet the needs of different detection conditions. The PLC control module built into the operating console 3 serves as the core control unit, receiving parameter settings and start commands from the operator, driving the various execution components to work together, and receiving sensor feedback data in real time. The tooling base 6 of the test bench 2 provides an installation reference for each testing station. After the brake caliper 10 is fixed by the self-adaptive tooling, it completes the testing in sequence through the three stations: First torque detection station: Servo motor 7 drives brake disc 9 to rotate, hydraulic or pneumatic drive brake caliper 10 clamps, torque detection mechanism 8 collects drag torque data. Second rigidity testing station: The movable seat 12 moves along the first slide rail 17 to the designated position. The displacement sensor 1101 is adjusted by adjusting the handle 1103 and the grating ruler 1105 so that it contacts both sides of the brake caliper 10. Hydraulic or pneumatic pressure is applied to the brake caliper 10 to collect the deformation data of the brake caliper 10 and calculate the rigidity of the caliper body. Third force detection station: The movable table 15 moves along the first slide rail 17, and cooperates with the second slide rail 20 to finely adjust the position of the force detection mechanism 16. The motor 1602 drives the transmission shaft 1604 to perform tension and compression movements. The tension and compression sensor 1603 collects data such as piston sliding resistance and EPB clamping force. The three-station testing process is automatically switched by PLC control, eliminating the need for manual intervention and reducing human error. At the same time, the gas and liquid dual-condition data can be correlated through a correlation model to achieve "gas pressure prediction of hydraulic qualification", which greatly improves testing efficiency.

[0037] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A gas-liquid dual-control braking clamp comprehensive performance testing system and equipment, comprising a main body (1) and an experimental platform (2), characterized in that, An operating table (3) is provided on the front side of the main body of the equipment (1), the experimental table (2) is located inside the main body of the equipment (1), a hydraulic block (4) is provided on the upper rear side of the main body of the equipment (1), and a pneumatic control block (5) is provided on the lower rear side of the main body of the equipment (1). The experimental platform (2) includes a tooling base (6), one end of which is fixedly connected to a torque detection mechanism (8), one end of which is provided with a servo motor (7), one end of which is assembled with a brake disc (9), and the top of the brake disc (9) is provided with a brake caliper (10), the top of which is connected to a hydraulic block (4) or a pneumatic control block (5) through pipes. Secondly, the tooling base (6) is fixedly connected to the top of the first fixed frame (13), and two rigid detection mechanisms (11) are provided on both sides of the first fixed frame (13). The bottom of the rigid detection mechanism (11) is fixedly connected to the movable seat (12), and the movable seat (12) is movably connected to the top of the tooling base (6). The rigid detection mechanism (11) includes a displacement sensor (1101) and a fixed column (1102). The fixed column (1102) is fixedly connected to the top of the movable seat (12). An adjustment handle (1103) is provided on one side of the fixed column (1102), and an adjustment column (1104) is movably connected to the top of the fixed column (1102). Furthermore, a second fixed frame (14) is fixedly connected to one end of the top of the tooling base (6), and a movable platform (15) is provided on one side of the second fixed frame (14). The movable platform (15) is movably connected to the top of the tooling base (6), and a force detection mechanism (16) is movably connected to the top of the movable platform (15).

2. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The tooling base (6) has two first slide rails (17) fixedly connected to its top, and the movable seat (12) has two first sliders (18) fixedly connected to its bottom. The first sliders (18) are slidably connected to the top of the first slide rails (17).

3. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The bottom of the movable platform (15) is fixedly connected to two second sliders (19), which are slidably connected to the top of the first slide rail (17).

4. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The top of the movable platform (15) is fixedly connected to two second slide rails (20), and the bottom of the force detection mechanism (16) is fixedly connected to two third sliders (21). The third sliders (21) are slidably connected to the top of the second slide rails (20).

5. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The force detection mechanism (16) includes a housing (1601) and a motor (1602). The motor (1602) is installed at one end of the housing (1601). A tension / compression sensor (1603) is provided at one end of the motor (1602). A drive shaft (1604) is assembled and connected to one end of the tension / compression sensor (1603).

6. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The top of the adjusting column (1104) is fixedly connected to a grating ruler (1105), and the top of the grating ruler (1105) is movably connected to two mounting sliders (1106). The displacement sensor (1101) is fixedly connected to the top of the mounting sliders (1106).

7. The gas-liquid dual-control braking clamp comprehensive performance testing system and equipment according to claim 1, characterized in that, The steps include the following: S1: Adaptive tooling installation and workpiece clamping According to the model of the brake caliper (10) to be tested, select the corresponding adaptive tooling to install on the tooling base (6) of the test bench (2), tighten the fixing bolts and test the runout of the brake disc (9) end face, clean the brake caliper (10) and mark it with a unique number, fix it in the designated position of the tooling according to the vehicle installation simulation state, and ensure that the fit clearance between the brake caliper (10) and the brake disc (9) meets the test standard and there is no jamming; S2: Gas-liquid circuit connection and pretreatment Selectively connect the top pipe of the brake caliper (10) to the hydraulic block (4) or the pneumatic control block (5), ensuring that the interface is sealed without leakage. Start the system exhaust function to expel the residual air in the hydraulic circuit and the pneumatic control circuit respectively. Perform zero-point calibration on the torque detection mechanism (8), tension and compression sensor (1603), displacement sensor (1101) and grating ruler (1105) to confirm that there is no jamming in the moving parts movable seat (12), movable table (15) and adjusting column (1104) and that the brake caliper (10) is in the loose state. S3: Operating Condition Setting and Parameter Input Select the model of the brake caliper (10) to be tested and the corresponding test items through the operating console (3), including drag torque, caliper body rigidity and piston sliding resistance. Input the preset pressure, brake disc (9) speed and load test parameters. After saving the parameter scheme, start the system self-test process to confirm that the functions of each module in the main body (1) of the equipment are normal. S4: Multi-station automatic detection Torque detection: The hydraulic block (4) or the pneumatic control block (5) inputs air / liquid pressure to the brake caliper (10) according to the set working conditions. The servo motor (7) drives the brake disc (9) to rotate at a constant speed. The torque detection mechanism (8) collects drag torque data in real time. Rigidity detection: The hydraulic block (4) or the pneumatic block (5) applies a preset pressure to the brake caliper (10), and the displacement sensor (1101) collects the deformation data of the brake caliper (10) and calculates the caliper body rigidity by combining the pressure value; Force detection: The motor (1602) of the start force detection mechanism (16) drives the transmission shaft (1604) to apply a preset load to the brake caliper (10) assembly slide block and piston slide block. The tension and compression sensor (1603) collects force data and records the piston sliding resistance and EPB clamping force parameters. S5: Data Processing and Result Output After the test is completed, the system automatically analyzes the collected pressure, torque and displacement data, compares them with standard thresholds to determine the test results, and generates a test report containing the product number, test items, measured data and judgment conclusions. The system supports data storage, query and printing of paper reports. Qualified workpieces are marked and transferred, while unqualified workpieces are transferred to the rework process.

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