Brake caliper body deformation testing system

Abstract

The utility model relates to the technical field of caliper testing, in particular to a brake caliper body deformation testing system. Comprises: a motor controllably outputting a rotational drive; the transmission device is connected with an output shaft of the motor, and the transmission device comprises a connecting tool capable of moving in a linear direction based on rotation driving of the motor; the test caliper is arranged in the linear direction of the transmission device, the test caliper is provided with a displacement sensor used for collecting deformation of the test caliper, a data acquisition control device and a motor controller used for driving the motor, and the data acquisition control device is further connected with the displacement sensor to obtain deformation data of the test caliper. According to the utility model, a hydraulic test system in the prior art is replaced by motor driving, the output can be accurately controlled, the force and displacement acting on the test calipers can be accurately adjusted, the test precision is high, and the response speed is fast.

Description

Technical Field

[0001] This utility model relates to the field of caliper testing technology, specifically to a brake caliper body deformation testing system. Background Technology

[0002] Brake calipers are a key component of the braking system. Their primary function is to transfer braking force from the EMB (Electronic Brake caliper) to the brake disc or drum, thereby achieving the vehicle's braking effect. The caliper body is made of metal, typically cast iron or aluminum alloy. The rigidity of the caliper body directly affects the efficiency of braking force transmission and the response speed of the braking system. If the caliper body lacks sufficient rigidity, it may lead to delayed braking or uneven braking, thus increasing the risk of accidents.

[0003] Current technologies for testing brake calipers typically employ hydraulic testing. However, hydraulic testing systems are complex, involving numerous components such as hydraulic pumps, hydraulic cylinders, hydraulic lines, and various control valves. The entire testing system is bulky and has high maintenance costs. Furthermore, hydraulic oil is prone to leakage, affecting testing accuracy and resulting in slow response times. Utility Model Content

[0004] The purpose of this utility model is to provide a brake caliper body deformation testing system to solve the above-mentioned technical problems;

[0005] The technical problem solved by this utility model can be achieved by the following technical solution:

[0006] A brake caliper body deformation testing system, comprising,

[0007] The motor can controllably output rotational drive;

[0008] A transmission device connected to the output shaft of the motor, the transmission device including a connecting fixture that can move along a straight line based on the rotational drive of the motor;

[0009] A test caliper is positioned in the linear direction of the transmission device, and the test caliper is equipped with a displacement sensor for acquiring the deformation of the test caliper.

[0010] A data acquisition and control device is connected to a motor controller for driving the motor. The data acquisition and control device is also connected to the displacement sensor to acquire the deformation data of the test caliper.

[0011] Preferably, the transmission device includes a coupling, through which the rotational motion of the motor's output shaft is transmitted to the connecting fixture.

[0012] Preferably, the transmission device further includes a ball screw structure disposed within the connecting fixture, and the motor is connected to the ball screw structure via the coupling. The ball screw structure includes...

[0013] A screw and a nut movable along the axis of the screw, wherein the screw and the nut are provided with mutually compatible helical grooves, and the nut is fixedly connected to the connecting fixture;

[0014] Ball bearings fill the helical grooves between the screw and the nut.

[0015] Preferably, the coupling is equipped with a torque sensor.

[0016] Preferably, a force sensor is provided on the inner side of the test caliper.

[0017] Preferably, the displacement sensor includes a first displacement sensor and a second displacement sensor symmetrically disposed on both sides of the jaws of the test caliper, and a third displacement sensor and a fourth displacement sensor symmetrically disposed on both sides of the piston of the test caliper.

[0018] Preferably, it further includes a bearing support and a clamp support, with the motor mounted on the bearing support and the test clamp mounted on the clamp support.

[0019] Preferably, it also includes an industrial computer located in a control cabinet, the industrial computer being connected to the data acquisition and control device, and the industrial computer being connected to an interactive device for acquiring external commands.

[0020] Preferred options also include,

[0021] A programmable DC power supply is connected to the data acquisition and control device;

[0022] A current sensor is connected to the programmable DC power supply to collect the output current of the programmable DC power supply.

[0023] Preferably, the motor is a servo motor equipped with an encoder, and the output shaft of the motor is connected to a planetary reducer.

[0024] The beneficial effects of this utility model are as follows: By adopting the above technical solution, this utility model uses a motor drive to replace the hydraulic testing system in the prior art, which can accurately control the output and precisely adjust the force and displacement acting on the test caliper, resulting in high testing accuracy and fast response speed. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the brake caliper body deformation testing system in an embodiment of the present invention;

[0026] Figure 2This is a hardware system architecture diagram of the brake caliper body deformation testing system in this embodiment of the present invention;

[0027] Figure 3 This is a flowchart of the test process for the brake caliper body deformation testing system in this embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the transmission structure of the brake caliper body deformation testing system in this embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0032] A brake caliper body deformation testing system, such as Figure 1 As shown, including,

[0033] Motor 1, which can controllably output rotational drive;

[0034] A transmission device is connected to the output shaft of the motor 1. The transmission device includes a connecting fixture 3 that can move along a straight line based on the rotational drive of the motor 1.

[0035] The test caliper 4 is located in the straight direction of the transmission device, and the test caliper 4 is equipped with a displacement sensor 53 for collecting the deformation amount of the test caliper 4;

[0036] The data acquisition and control device 62 is connected to the motor controller 63 for driving the motor 1. The data acquisition and control device 62 is also connected to the displacement sensor 53 to acquire the deformation data of the test caliper 4.

[0037] Specifically, this utility model uses motor 1 as the power source for caliper deformation testing, and efficiently converts the rotational motion of motor 1 into the linear motion of the connected tooling 3 through a transmission device. It has high transmission efficiency and accuracy, simple overall structure, high testing accuracy, and fast response speed.

[0038] In a preferred embodiment, the transmission device includes a coupling 2, through which the rotational motion of the output shaft of the motor 1 is transmitted to the connecting fixture 3.

[0039] Specifically, this utility model connects the motor 1 through the coupling 2 to ensure smooth power transmission, effectively avoid vibration and impact caused by improper connection, and ensure that a stable clamping force can be applied to the test caliper 4 during the test, thereby obtaining more accurate test results.

[0040] In a preferred embodiment, the transmission device further includes a ball screw structure disposed within the connecting fixture 3. The motor 1 is connected to the ball screw structure via the coupling 2. The ball screw structure includes...

[0041] A screw and a nut that can move along the axis of the screw, wherein the screw and the nut are provided with mutually compatible helical grooves, and the nut is fixedly connected to the connecting fixture 3;

[0042] Ball bearings fill the helical grooves between the screw and the nut.

[0043] Specifically, in the ball screw structure, the nut is fixedly connected to the connecting fixture 3, and the screw is connected to the coupling 2. When the output shaft of the motor 1 rotates, it drives the screw to rotate through the coupling 2. Since the nut is restricted by the connecting fixture 3 and cannot rotate, it can only move along the axis of the screw, thus converting the rotational motion of the output shaft of the motor 1 into the linear motion of the nut (and the connecting fixture 3).

[0044] The connecting fixture 3 transmits the linear motion of the nut to the test caliper. A force sensor 52, installed inside the caliper, detects the linear clamping force applied to the test caliper 4 and determines whether the clamping force meets the testing requirements. A displacement sensor 53 measures the linear displacement of the caliper 4. Data collected by the force sensor 52 and displacement sensor 53 is transmitted to the industrial computer 61 via a data acquisition and control device 62 for processing and display.

[0045] If it is necessary to increase the clamping force on the test caliper 4, the industrial control computer 61 sends a command to the motor controller 63 through the data acquisition and control device 62 to increase the torque output of the motor 1. The change in the speed or torque of the motor 1 will be converted into a larger linear driving force through the ball screw structure, thereby increasing the clamping force on the test caliper 4.

[0046] In a preferred embodiment, the coupling 2 is provided with a torque sensor 51.

[0047] In a preferred embodiment, a force sensor 52 is provided on the inner side of the test caliper 4.

[0048] Specifically, the force sensor 52 is installed inside the caliper to detect the linear clamping force applied to the test caliper 4 and determine whether the clamping force meets the test requirements.

[0049] In a preferred embodiment, the displacement sensor 53 includes a first displacement sensor, a second displacement sensor symmetrically disposed on both sides of the jaws of the test caliper 4, and a third displacement sensor and a fourth displacement sensor symmetrically disposed on both sides of the piston of the test caliper 4.

[0050] In a preferred embodiment, the system further includes a bearing support 71 and a clamp support 72, with the motor 1 mounted on the bearing support 71 and the test clamp 4 mounted on the clamp support 72.

[0051] Specifically, this utility model provides a bearing support 71 and a clamp support 72 to support the motor 1 and the test clamp 4 respectively, ensuring the stable installation and precise positional relationship of each component during the test process, and reducing measurement errors caused by component shaking or displacement.

[0052] In a preferred embodiment, the system further includes an industrial computer 61 located in the control cabinet 6, the industrial computer being connected to the data acquisition and control device 62, and the industrial computer 61 being connected to an interactive device 65 for acquiring external commands.

[0053] Specifically, control cabinet 6 includes a cabinet body, various brackets and cable trays installed inside the cabinet body. The cabinet body is constructed of a metal frame and is a multi-U standard cabinet with a height of 1.5 meters or more. The control cabinet 6 panel includes multiple sets of switches, indicator lights, etc. The interior includes an industrial control computer bracket, a data acquisition and control device bracket, an air switch, intermediate relays, etc.

[0054] In a preferred embodiment, it further includes,

[0055] A programmable DC power supply 67 is connected to the data acquisition and control device 62;

[0056] A current sensor 64 is connected to the programmable DC power supply 67 to collect the output current of the programmable DC power supply 67.

[0057] In a preferred embodiment, the motor 1 is a servo motor equipped with an encoder, and the output shaft of the motor 1 is connected to a planetary reducer 91.

[0058] Specifically, this invention employs a servo motor 1 equipped with an encoder, combined with a planetary reducer 91, which can precisely control the output rotational drive, thereby accurately adjusting the force acting on the test caliper 4. A torque sensor 51 mounted on the coupling 2 can monitor torque changes during transmission in real time. A force sensor 52 is installed inside the test caliper 4, and displacement sensors 53 are respectively installed on both sides of the caliper jaws and piston, enabling comprehensive acquisition of force and deformation data of the caliper from all directions and multiple angles, and a complete assessment of the caliper deformation.

[0059] In one specific embodiment, such as Figure 2 As shown, the system hardware configuration of this utility model uses an industrial control computer 61 as the central control unit, with the motor 1 and motor controller 63 providing rotational motion; the data acquisition and control device 62 provides program control and signal acquisition.

[0060] The industrial control computer 61 serves as the core control unit and is connected to the interactive device 65, which includes a display screen, keyboard, and mouse, facilitating human-machine interaction, inputting commands, and viewing system status and other information.

[0061] The uninterruptible power supply 68 (UPS) provides uninterrupted power to equipment such as the industrial control computer 61. The data acquisition and control device 62 is bidirectionally connected to the industrial control computer 61. On the one hand, it receives instructions from the industrial control computer 61, and on the other hand, it collects various data in the system and feeds them back to the industrial control computer 61 for processing.

[0062] The electromechanical brake controller 81 (EMB) inside the equipment cabinet 8 is connected to the industrial computer 61 via the CAN bus device 66. The programmable DC power supply 67 provides a stable DC power supply to the data acquisition and control device 62 and is connected to the current sensor 64, which detects the output current of the programmable DC power supply 67.

[0063] The system software includes configuration software, real-time data acquisition and analysis software, data analysis and test report generation software, etc., and the software functions and structure are as follows: Figure 3 As shown.

[0064] The configuration software includes motor control parameter configuration, standard test process configuration, analog parameter configuration, project information and data storage configuration, etc. The real-time control and data acquisition software will include test selection, test process control and data acquisition, online curve display and result prompts, test report generation, etc.; the test report and data analysis software includes test reports as well as data analysis and post-processing.

[0065] In one specific embodiment, such as Figure 4The exhibited caliper deformation testing device features a servo motor 1 as the power source. Its output power is reduced and amplified by a planetary reducer 91 to obtain the torque and speed range suitable for caliper testing. A coupling 2, connected after the planetary reducer 91, transmits torque and, utilizing its elasticity, buffers impacts and vibrations caused by motor 1 operation or load changes. A torque sensor 51 monitors the torque magnitude in real-time. The connecting fixture 3 and ball screw structure are housed within the environmental chamber sleeve 93. The output of coupling 2 is connected to the ball screw structure via flange component 92. The test caliper 4 is directly connected to the product flange 94, transmitting the clamping force output from the transmission device to the test caliper 4.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A brake caliper body deformation testing system, characterized in that, include, Motor (1), capable of outputting rotational drive in a controllable manner; A transmission device is connected to the output shaft of the motor (1), the transmission device including a connecting fixture (3) that can move along a straight line based on the rotational drive of the motor (1); The test caliper (4) is located in the straight direction of the transmission device, and the test caliper (4) is provided with a displacement sensor (53) for collecting the deformation of the test caliper (4); The data acquisition and control device (62) is connected to the motor controller (63) for driving the motor (1). The data acquisition and control device (62) is also connected to the displacement sensor (53) to acquire the deformation data of the test caliper (4).

2. The brake caliper body deformation testing system according to claim 1, characterized in that, The transmission device includes a coupling (2), through which the rotational motion of the output shaft of the motor (1) is transmitted to the connecting fixture (3).

3. The brake caliper body deformation testing system according to claim 2, characterized in that, The transmission device further includes a ball screw structure, which is disposed within the connecting fixture (3). The motor (1) is connected to the ball screw structure via the coupling (2). The ball screw structure includes... A screw and a nut that can move along the axis of the screw, wherein the screw and the nut are provided with mutually compatible helical grooves, and the nut is fixedly connected to the connecting fixture (3); Ball bearings fill the helical grooves between the screw and the nut.

4. The brake caliper body deformation testing system according to claim 2, characterized in that, The coupling (2) is equipped with a torque sensor (51).

5. The brake caliper body deformation testing system according to claim 1, characterized in that, A force sensor (52) is provided on the inside of the test caliper (4).

6. The brake caliper body deformation testing system according to claim 1, characterized in that, The displacement sensor (53) includes a first displacement sensor, a second displacement sensor symmetrically arranged on both sides of the jaws of the test caliper (4), and a third displacement sensor and a fourth displacement sensor symmetrically arranged on both sides of the piston of the test caliper (4).

7. The brake caliper body deformation testing system according to claim 1, characterized in that, It also includes a bearing support (71) and a clamp support (72), the motor (1) is mounted on the bearing support (71), and the test clamp (4) is mounted on the clamp support (72).

8. The brake caliper body deformation testing system according to claim 1, characterized in that, It also includes an industrial computer (61) located in the control cabinet (6), the industrial computer (61) being connected to the data acquisition and control device (62), and the industrial computer (61) being connected to an interactive device (65) for acquiring external commands.

9. The brake caliper body deformation testing system according to claim 1, characterized in that, It also includes, A programmable DC power supply (67) is connected to the data acquisition and control device (62); A current sensor (64) is connected to the programmable DC power supply (67) to collect the output current of the programmable DC power supply (67).

10. The brake caliper body deformation testing system according to claim 8, characterized in that, The motor (1) is a servo motor equipped with an encoder, and the output shaft of the motor (1) is connected to a planetary reducer (91).

Images