Wheel-side disc brake assembly multi-parameter detection device and method

Abstract

The present invention relates to a multi-parameter detection device and method for a wheel-side disc brake assembly. The detection device includes a support frame, a mounting platform, a power rotation mechanism, a displacement sensor, a material detection sensor and a PLC controller. The wheel-side disc brake assembly to be tested is placed on the mounting platform. The PLC controller controls the power rotation mechanism to move downward and press the wheel-side disc brake assembly to be tested. The power rotation mechanism drives the wheel-side disc brake assembly to rotate on the mounting platform. When the wheel-side disc brake assembly starts to rotate and during the rotation process, the starting force, circular runout and circumferential thickness difference of the wheel-side disc brake assembly are detected by a torque sensor and a displacement sensor respectively to identify whether the wheel-side disc brake assembly to be tested is qualified. The present invention detects the starting force, circular runout and circumferential thickness difference of the wheel-side disc brake assembly through a mechanical device, without the need for manual handheld dynamometers and micrometers for detection, which saves time and effort and has no safety hazards. Compared with manual data collection detection, the detection efficiency is high and the detection accuracy is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of testing a vehicle wheel disc brake assembly, and in particular to a multi-parameter detection device and method for a wheel disc brake assembly. Background Art

[0002] The wheel-side disc brake assembly is an important part of the car, mainly including the drive shaft, brake pads, steering knuckle, wheel hub and other parts. It is one of the most important safety parts on the car. The wheel-side disc brake assembly bears the pressure of the car and the load, the dynamic torque of the vehicle when starting and braking, and the irregular alternating force generated by dynamic loads from different directions such as turning, uneven road surface, and impact of road obstacles during driving. The quality and reliability of the wheel-side disc brake assembly are directly related to the safety of the vehicle and the people and materials on the vehicle, because it must undergo rigorous testing before it can be put into use.

[0003] In the detection of wheel-side disc brake assemblies, the detection of the starting force and circular runout of the wheel-side disc brake assembly is an important step to ensure the smooth driving of the car. By detecting the circular starting force and the runout value, the wheel-side disc brake assembly is tested to see if it is qualified. At present, the detection of the starting force and circular runout of the wheel-side disc brake assembly is mostly done manually, using a dynamometer to detect the starting force and a micrometer to measure the circular runout. The manual detection of the starting force and circular runout of the wheel-side disc brake assembly is not only time-consuming and laborious, but also has a low detection accuracy and is prone to cause safety accidents. Summary of the invention

[0004] The present invention provides a multi-parameter detection device and method for a wheel-side disc brake assembly, which is used to solve the problem in the prior art that the starting force and circular runout of the wheel-side disc brake assembly are manually detected, which is not only time-consuming and labor-intensive, but also has low detection accuracy and is prone to causing safety accidents, thereby achieving high-precision, safe and reliable detection of the wheel-side disc brake assembly.

[0005] The present invention provides a multi-parameter detection device for a wheel-side disc brake assembly, comprising a support frame, a mounting platform, a power rotation mechanism, a displacement sensor and a PLC controller, wherein the mounting platform is arranged at the lower part of the support frame and is used to install the wheel-side disc brake assembly to be tested; the power rotation mechanism is located above the mounting platform, and the power rotation mechanism is movably arranged on the support frame and can move in a direction toward or away from the mounting platform, and is used to move to the wheel-side disc brake assembly to be tested and provide rotational power for the wheel-side disc brake assembly to be tested; the power rotation mechanism is provided with a torque sensor and a material detection sensor, and the torque sensor is used to detect the wheel-side disc brake to be tested. The torque applied to the assembly when it changes from a static state to a rotating state is used to determine the starting force of the wheel-side disc brake assembly to be tested; the material detection sensor is used to detect whether the wheel-side disc brake assembly to be tested is installed on the mounting platform; the displacement sensor is used to detect the change in the distance between the wheel surface and the displacement sensor during the rotation of the wheel-side disc brake assembly to be tested, so as to calculate the circular runout value and circumferential thickness difference of the wheel-side disc brake assembly to be tested; the PLC controller is electrically connected to the power rotation mechanism, the torque sensor, the displacement sensor and the material detection sensor respectively to control the power rotation mechanism, the torque sensor, the displacement sensor and the material detection sensor to work respectively.

[0006] According to a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, the support frame includes a plurality of vertical light rods arranged in parallel, the top ends of the plurality of vertical light rods are connected to a top plate, a telescopic cylinder is fixed to the lower surface of the top plate, the telescopic rod of the telescopic cylinder is connected to a sliding plate, the sliding plate is movably mounted on the vertical light rods through a shaft sleeve, and the power rotation mechanism is fixed to the sliding plate; the bottom ends of the plurality of vertical light rods are connected to a bottom plate, and the mounting platform is arranged on the bottom plate.

[0007] According to a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, the power rotation mechanism includes a servo motor, a reducer, a rotating shaft and a pressure plate, wherein the servo motor is fixed to the sliding plate; the reducer is connected to the servo motor; the rotating shaft is connected to the output shaft of the reducer via a coupling; the pressure plate is connected to the torque sensor, and the torque sensor is connected to the rotating shaft via a coupling, and the pressure plate is used to contact the wheel-side disc brake assembly to be tested and generate friction traction.

[0008] According to a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, a pressure sensor is arranged on the pressure plate, and the pressure sensor is used to detect the pressure of the pressure plate acting on the wheel-side disc brake assembly to be tested, so as to control the telescopic cylinder to adjust the downward pressure distance of the sliding plate through the PLC controller.

[0009] According to a multi-parameter detection device for a wheel-rim disc brake assembly provided by the present invention, the power rotating mechanism is provided with an anti-bias mechanism, and the anti-bias mechanism includes a transverse plate, two vertical plates and a rib plate, wherein a bearing is embedded in the transverse plate, and the transverse plate is mounted on the outer periphery of the rotating shaft through the bearing; the two vertical plates are connected to the opposite sides of the transverse plate, and the top end of the vertical plate is fixed to the sliding plate; the rib plate connects the sliding plate and the vertical plate.

[0010] According to a multi-parameter detection device for a wheel-rim disc brake assembly provided by the present invention, the displacement sensor includes an upper displacement sensor and a lower displacement sensor arranged on the support frame, the sensor probe of the upper displacement sensor faces the upper surface of the wheel surface of the wheel rim to be measured, and the sensor probe of the lower displacement sensor faces the lower surface of the wheel surface of the wheel rim to be measured.

[0011] According to a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, the upper displacement sensor is fixed to the supporting frame through a fixing bracket; the lower displacement sensor is installed on the guide rod end of the guide rod cylinder, and the guide rod cylinder is fixed to the supporting frame, and the guide rod cylinder pushes the lower displacement sensor to move in a direction toward or away from the wheel-side disc brake assembly to be tested.

[0012] According to a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, a mounting frame is arranged in the support frame, one end of the mounting frame extends out of the support frame, a plurality of vertically parallel arranged lifting cylinders are arranged on the mounting frame, the mounting platform is fixedly connected to the cylinder push rod of the lifting cylinder, the mounting frame is also provided with a guide rail extending from a position below the mounting platform to the outside of the support frame, a support block is slidably installed on the guide rail, a pushing cylinder is fixedly arranged at the portion of the mounting frame extending out of the support frame, the telescopic rod of the pushing cylinder is connected to the support block, and the lifting cylinder and the pushing cylinder are electrically connected to the PLC controller.

[0013] The present invention also provides a multi-parameter detection method for a wheel-side disc brake assembly, which is applicable to any one of the multi-parameter detection devices for a wheel-side disc brake assembly described above, and comprises steps S1 to S7.

[0014] S1. Install the wheel disc brake assembly to be tested on the mounting table.

[0015] S2, the PLC controller controls the material detection sensor to detect whether there is a wheel disc brake assembly to be tested on the mounting table. If there is a wheel disc brake assembly to be tested, step S3 is performed. If there is no wheel disc brake assembly to be tested, it is prompted to repeat step S1.

[0016] S3, the PLC controller controls the power rotating mechanism to move toward the mounting platform until the power rotating mechanism moves to the wheel side disc brake assembly to be tested.

[0017] S4, the PLC controller controls the power rotating mechanism to rotate, and provides rotational power for the wheel disc brake assembly to be tested. When the wheel disc brake assembly to be tested changes from a static state to a rotating state, the torque applied to the wheel disc brake assembly to be tested is detected by the torque sensor, and recorded as the starting force of the wheel disc brake assembly to be tested. If the starting force detection meets the standard, proceed to step S5. If the starting force detection does not meet the standard, it is prompted that the wheel disc brake assembly to be tested is unqualified.

[0018] S5. The distance change between the wheel surface of the rotating wheel-side disc brake assembly to be tested and the displacement sensor is detected by means of a displacement sensor, and the circular runout value of the wheel-side disc brake assembly to be tested is calculated. If the circular runout detection value meets the standard, it is indicated that the circular runout of the wheel-side disc brake assembly to be tested is qualified; if the circular runout detection value does not meet the standard, it is indicated that the wheel-side disc brake assembly to be tested is unqualified.

[0019] S6, the PLC controller controls the power rotating mechanism to stop rotating and move away from the mounting platform to the initial position.

[0020] S7. According to the test results, the tested wheel-side disc brake assemblies are classified and placed.

[0021] According to a multi-parameter detection method for a wheel-side disc brake assembly provided by the present invention, in step S4, the starting force detection of the wheel-side disc brake assembly to be tested includes: gradually increasing the rotational power of the power rotating mechanism acting on the wheel-side disc brake assembly to be tested, detecting the torque applied to the wheel-side disc brake assembly to be tested when it changes from a static state to a rotating state through a torque sensor, and recording it as the starting force of the wheel-side disc brake assembly to be tested, comparing the detected starting force of the wheel-side disc brake assembly to be tested with the starting force upper limit standard value, and transmitting the comparison result to a PLC controller; if the starting force detection value is lower than the starting force upper limit standard value, the PLC controller controls the execution of step S5; if the starting force detection value is higher than the starting force upper limit standard value, the PLC controller controls the prompt that the wheel-side disc brake assembly to be tested is unqualified.

[0022] In step S5, detecting the circular runout of the wheel-side disc brake assembly to be tested includes: detecting the distance from the surface of the wheel-side disc brake assembly to be tested by a displacement sensor, recording all values ​​detected by the displacement sensor when the wheel-side disc brake assembly to be tested rotates one circle, the difference between the maximum and minimum values ​​of all detected values ​​is the circular runout value of the wheel-side disc brake assembly to be tested, comparing the obtained circular runout value with the circular runout upper limit standard value, and transmitting the comparison result to the PLC controller, if the circular runout detection value is lower than the circular runout upper limit standard value, the PLC controller controls to prompt that the wheel-side disc brake assembly to be tested is qualified, and if the circular runout detection value is higher than the circular runout upper limit standard value, the PLC controller controls to prompt that the wheel-side disc brake assembly to be tested is unqualified.

[0023] According to a multi-parameter detection method for a wheel-side disc brake assembly provided by the present invention, step S5 also includes detection of the circumferential thickness difference of the wheel-side disc brake assembly: detecting the distance from the upper surface of the wheel-side disc brake assembly to be tested by an upper displacement sensor, which is recorded as an upper displacement L1; detecting the distance from the lower surface of the wheel-side disc brake assembly to be tested by a lower displacement sensor, which is recorded as a lower displacement L2; the distance between the upper displacement sensor and the lower displacement sensor is recorded as a total displacement L; according to the thickness of the wheel-side disc brake assembly = L-(L1+L2), the wheel-side disc brake assembly to be tested rotates one circle to obtain all circumferential thickness values ​​of the wheel-side disc brake assembly, and the difference between the maximum circumferential thickness value and the minimum circumferential thickness value of the wheel-side disc brake assembly is recorded as the circumferential thickness difference of the wheel-side disc brake assembly.

[0024] The present invention provides a multi-parameter detection device and method for a wheel-side disc brake assembly, which mainly detects the starting force of the wheel-side disc brake assembly through a torque sensor, and detects the circular runout of the wheel-side disc brake assembly through a displacement sensor. The wheel-side disc brake assembly to be tested is placed on a mounting table. When the material detection sensor detects that the wheel-side disc brake assembly is placed on the mounting table, the PLC controller controls the power rotation mechanism to move downward, and the power rotation mechanism presses the wheel-side disc brake assembly to be tested downward, and then the power rotation mechanism starts to rotate. The rotation of the power rotation mechanism drives the wheel-side disc brake assembly to rotate on the mounting table. When the wheel-side disc brake assembly starts to rotate and during the rotation process, the starting force and circular runout of the wheel-side disc brake assembly are detected by the torque sensor and the displacement sensor respectively, so as to identify whether the wheel-side disc brake assembly to be tested is qualified. The detection of the starting force and circular runout of the wheel-side disc brake assembly is achieved through mechanical devices. There is no need for manual hand-held dynamometers and micrometers for detection, which saves time and effort and has no safety hazards. Compared with manual data collection detection, sensor detection has high detection efficiency and more precise detection accuracy. The circular runout accuracy can reach 0.1 microns and the starting force accuracy is 0.1N. Both are automatically detected, which improves the detection capabilities of the starting force and circular runout of the wheel-side disc brake assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an axonometric diagram of the multi-parameter detection device for the wheel-side disc brake assembly provided by the present invention.

[0027] Figure 2 It is a front view structural schematic diagram of the multi-parameter detection device for the wheel-side disc brake assembly provided by the present invention.

[0028] Figure 3 It is a right-side structural schematic diagram of the multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention.

[0029] Figure 4 It is a left-side structural schematic diagram of the multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention.

[0030] Figure 5 The present invention is a schematic diagram of the jacking structure of the mounting platform of the multi-parameter detection device for the wheel-side disc brake assembly provided by the present invention.

[0031] Figure numerals: 1. Support frame; 101. Vertical light rod; 102. Top plate; 103. Telescopic cylinder; 104. Sliding plate; 105. Bushing; 106. Bottom plate; 2. Mounting table; 3. Power rotation mechanism; 301. Servo motor; 302. Reducer; 303. Rotating shaft; 304. Pressure plate; 4. Torque sensor; 5. Displacement sensor; 501. Upper displacement sensor; 502. Lower displacement sensor; 6. Material detection sensor; 7. Anti-bias mechanism; 701. Horizontal plate; 702. Vertical plate; 703. Rib plate; 8. Guide rod cylinder; 9. Mounting frame; 10. Lifting cylinder; 11. Guide rail; 12. Support block; 13. Push cylinder. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] Combine the following Figure 1~Figure 5 The invention describes a multi-parameter detection device and method for a wheel-rim disc brake assembly.

[0038] One embodiment of the present invention provides a multi-parameter detection device for a wheel disc brake assembly, see Figure 1As shown, it includes a supporting frame 1, a mounting platform 2, a power rotating mechanism 3, a displacement sensor 5, a material detection sensor 6 and a PLC controller, wherein the mounting platform 2 is arranged at the lower part of the supporting frame 1, and is used to install the wheel disc brake assembly to be tested; the power rotating mechanism 3 is located above the mounting platform 2, and the power rotating mechanism 3 is movably arranged on the supporting frame 1, and can move in a direction toward or away from the mounting platform 2, and is used to move to the wheel disc brake assembly to be tested and provide rotational power for the wheel disc brake assembly to be tested, and the power rotating mechanism 3 is provided with a torque sensor 4 and a material detection sensor 6, and the torque sensor 4 is used to detect the torque applied to the wheel disc brake assembly to be tested when it changes from a static state to a rotating state. , to determine the starting force of the wheel-side disc brake assembly to be tested; the displacement sensor 5 is used to detect the change in the distance between the wheel surface and the displacement sensor 5 during the rotation of the wheel-side disc brake assembly to be tested, so as to calculate the circular runout and circumferential thickness difference of the wheel-side disc brake assembly to be tested; the material detection sensor 6 is located above the mounting platform 2, and is used to detect the installation status of the wheel-side disc brake assembly to be tested on the mounting platform 2, that is, to detect whether the wheel-side disc brake assembly to be tested already exists on the mounting platform 2; the PLC controller is electrically connected to the power rotation mechanism 3, the torque sensor 4, the displacement sensor 5 and the material detection sensor 6 respectively to control the power rotation mechanism 3, the torque sensor 4, the displacement sensor 5 and the material detection sensor 6 to work respectively.

[0039] It can be understood that the multi-parameter detection device of the wheel-side disc brake assembly of this embodiment provides a mechanical structure to detect the starting force, circular runout and circumferential thickness difference of the wheel-side disc brake assembly, mainly detecting the starting force of the wheel-side disc brake assembly through the torque sensor 4, and detecting the circular runout value and circumferential thickness difference of the wheel-side disc brake assembly through the displacement sensor 5. Specifically, the wheel disc brake assembly to be tested is placed on the mounting table 2. When the material detection sensor 6 detects that the wheel disc brake assembly is placed on the mounting table 2, the PLC controller controls the power rotation mechanism 3 to move downward. The power rotation mechanism 3 presses the wheel disc brake assembly to be tested downward, and then the power rotation mechanism 3 starts to rotate. The power rotation mechanism 3 rotates to drive the wheel disc brake assembly to rotate on the mounting table 2. When the wheel disc brake assembly starts to rotate and during the rotation process, the starting force, circular runout and circumferential thickness difference of the wheel disc brake assembly are detected by the torque sensor 4 and the displacement sensor 5 respectively to identify whether the wheel disc brake assembly to be tested is qualified. The detection of the starting force, circular runout and circumferential thickness difference of the wheel-side disc brake assembly is achieved through mechanical devices. There is no need for manual hand-held dynamometers and micrometers for detection, which saves time and effort and has no safety hazards. Compared with manual data collection detection, sensor detection has high detection efficiency and more precise detection accuracy. The circular runout accuracy can reach 0.1 microns and the starting force accuracy is 0.1N. Both are automatically detected, which improves the detection capabilities of the starting force, circular runout and circumferential thickness difference of the wheel-side disc brake assembly.

[0040] In some embodiments of the multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, combined with Figure 1 and Figure 3 As shown, the support frame 1 includes a plurality of vertical light rods 101 arranged in parallel, the top ends of the plurality of vertical light rods 101 are connected to a top plate 102, a telescopic cylinder 103 is fixed to the lower surface of the top plate 102, the telescopic rod of the telescopic cylinder 103 is connected to a sliding plate 104, the sliding plate 104 is movably mounted on the vertical light rods 101 through a shaft sleeve 105, and a power rotating mechanism 3 is fixed to the sliding plate 104; the bottom ends of the plurality of vertical light rods 101 are connected to a bottom plate 106, and a mounting platform 2 is arranged on the bottom plate 106.

[0041] The support frame 1 structure of this embodiment mainly solves the lifting problem of the power rotating mechanism 3. In this embodiment, Figure 1 and Figure 3As shown, there are four vertical polished rods 101, which form the basic structure of the support frame 1. A top plate 102 is arranged at the top, a bottom plate 106 is arranged at the bottom, and two telescopic cylinders 103 are arranged inside the top plate 102. The telescopic cylinders 103 are connected to the sliding plate 104, and the sliding plate 104 is sleeved on the vertical polished rod 101 through the shaft sleeves 105 at the four corners. With the extension and contraction of the telescopic cylinders 103, the sliding plate 104 can move up and down along the vertical polished rod 101. The power rotating mechanism 3 is installed on the sliding plate 104, and the power rotating mechanism 3 approaches or moves away from the mounting platform 2 as the sliding plate 104 moves up and down. When the wheel side disc brake assembly is installed on the mounting platform 2, as the power rotating mechanism 3 moves toward the mounting platform 2, the lower end of the power rotating mechanism 3 will touch and press the wheel side disc brake assembly on the mounting platform 2, so as to realize the pressing of the wheel side disc brake assembly. When the power rotating mechanism 3 rotates, it drives the wheel side disc brake assembly to rotate on the mounting platform 2.

[0042] It should be understood that the mounting platform 2 involved in the structure of the present invention is a structure similar to a bearing and a rotating shaft. Based on the special structure of the wheel-side disc brake assembly, the wheel-side disc brake assembly is installed on the mounting platform 2, so that the wheel rim of the wheel-side disc brake assembly can rotate on the mounting platform 2, while the steering knuckle and other components of the wheel-side disc brake assembly remain stationary. The mounting platform 2 is a commonly used structure, and its specific structure is not used as a protection point of the present invention and is not described in detail herein.

[0043] In some other embodiments of a multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, the power rotation mechanism 3 includes a servo motor 301, a reducer 302, a rotating shaft 303 and a pressure plate 304, wherein the servo motor 301 is fixed to the sliding plate 104; the reducer 302 is connected to the servo motor 301; the rotating shaft 303 is connected to the output shaft of the reducer 302 through a coupling; the pressure plate 304 is connected to the torque sensor 4, and the torque sensor 4 is connected to the rotating shaft 303 through a coupling, and the pressure plate 304 is used to contact with the wheel-side disc brake assembly to be tested and generate friction traction, so as to drive the wheel-side disc brake assembly to be tested to rotate through the rotation of the pressure plate 304.

[0044] The power rotating mechanism 3 of this embodiment mainly moves up and down with the sliding plate 104, and when it moves to the position of the wheel-side disc brake assembly, it presses the wheel-side disc brake assembly to form a linkage between the wheel-side disc brake assembly and the power rotating mechanism 3. In this embodiment, the servo motor 301 and the reducer 302 move up and down with the sliding plate 104, driving the rotating shaft 303 and the pressure plate 304 connected thereto to move up and down. The servo motor 301 provides a power source, and outputs the rotating power to the rotating shaft 303 after the speed adjustment of the reducer 302. The pressure plate 304 is pressed on the wheel surface end face of the wheel-side disc brake assembly during the downward movement of the power rotating mechanism 3. As the pressure plate 304 cooperates with the mounting platform 2 to clamp the wheel-side disc brake assembly, a linkage between the wheel-side disc brake assembly and the power rotating mechanism 3 is formed, and the rotating shaft 303 drives the pressure plate 304 to rotate, which can drive the wheel surface of the wheel-side disc brake assembly to rotate. It can be understood that the portion where the pressure plate 304 is connected to the rotating shaft 303 is connected to the torque sensor 4 via a coupling. Therefore, when the power rotating mechanism 3 drives the wheel-side disc brake assembly to rotate, the torque applied to the wheel-side disc brake assembly by the power rotating mechanism 3 can be detected in real time, that is, the torque sensor 4 can detect the torsional starting force. The torsional force applied when the wheel-side disc brake assembly starts to rotate is the starting force of the wheel-side disc brake assembly.

[0045] In some other embodiments of the multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, a pressure sensor is provided on the pressure plate 304, and the pressure sensor is used to detect the pressure of the pressure plate 304 acting on the wheel-side disc brake assembly to be tested, so as to control the telescopic cylinder 103 to adjust the downward pressure distance of the sliding plate 104 through the PLC controller.

[0046] The sliding plate 104 can move up and down along the vertical polished rod 101 through the shaft sleeves 105 at the four corners, and the telescopic cylinder 103 adjusts the up and down movement distance of the sliding plate 104 to realize the contact pressure of the pressure plate 304 of the power rotating mechanism 3 on the wheel side disc brake assembly. It should be understood that after the servo motor 301 is decelerated by the reducer 302, the static friction generated between the pressure plate 304 and the wheel side disc brake assembly to be measured drives the wheel side disc brake assembly to be measured to rotate. Since the magnitude of static friction has an impact on the starting force, in order to reduce the impact, it is necessary to find the maximum static friction. From the formula f=μ×Fn (where f is friction, μ is friction coefficient, and Fn is positive pressure), it can be seen that the magnitude of friction is proportional to the positive pressure. Friction is not easy to test, but the positive pressure can be obtained through the pressure sensor on the pressure plate 304, so the pressure is changed to monitor and obtain the maximum static friction value. For different wheel-side disc brake assemblies to be tested, the telescopic cylinder 103 can be controlled by the PLC controller to adjust the downward pressing distance of the sliding plate 104, which is then converted into the downward pressing distance of the pressure plate 304 of the power rotating mechanism 3 to adjust the size of the positive pressure acting on the wheel-side disc brake assembly to be tested to ensure that the friction traction between the two is the maximum static friction.

[0047] It is understandable that the material detection sensor 6 can detect and distinguish the model of the wheel disc brake assembly to be tested, so that the pressing distance of the pressure plate 304 of the power rotating mechanism 3 can be controlled by the PLC controller to provide the corresponding maximum static friction force. When a new product is tested and debugged for the first time, the equipment will automatically learn the pressing force value after the personnel input the new product model. After the new product has been learned once, the parameters will be recorded in the PLC controller, and there is no need to re-learn when testing again.

[0048] On the basis of the above embodiments, in this embodiment, an anti-bias mechanism 7 is provided for the power rotation mechanism 3, and the anti-bias mechanism 7 includes a transverse plate 701, two vertical plates 702 and a rib plate 703, wherein a bearing is embedded in the transverse plate 701, and the transverse plate 701 is mounted on the outer periphery of the rotating shaft 303 through the bearing; the two vertical plates 702 are connected on opposite sides of the transverse plate 701, and the top end of the vertical plate 702 is fixed to the sliding plate 104; the rib plate 703 connects the sliding plate 104 and the vertical plate 702.

[0049] See also Figure 3 and Figure 4From the structure shown, it can be understood that the main structure of the power rotation mechanism 3 is a linear structure in the vertical direction, which ultimately needs to apply a clamping force and a rotational torque to the wheel-side disc brake assembly. The anti-bias mechanism 7 forms a lateral limit protection for the power rotation mechanism 3, mainly through the lateral plate 701 for lateral limitation, and through the vertical plate 702 and the rib plate 703 for structural reinforcement. The anti-bias mechanism 7 of this embodiment can prevent the lateral deflection of the power rotation mechanism 3 in the clamping and rotational motion state, thereby affecting the linkage effect of the power rotation mechanism 3 on the wheel-side disc brake assembly.

[0050] In some embodiments of the multi-parameter detection device for a wheel-side disc brake assembly provided by the present invention, combined with Figure 1 and Figure 2 As shown, the displacement sensor 5 includes an upper displacement sensor 501 and a lower displacement sensor 502 arranged on the support frame 1. The sensor probe of the upper displacement sensor 501 faces the upper surface of the wheel surface of the wheel edge to be measured, and the sensor probe of the lower displacement sensor 502 faces the lower surface of the wheel surface of the wheel edge to be measured. The upper displacement sensor 501 is fixed to the support frame 1 through a fixing frame; the lower displacement sensor 502 is installed on the guide rod end of the guide rod cylinder 8, and the guide rod cylinder 8 is fixed to the support frame 1. The guide rod cylinder 8 pushes the lower displacement sensor 502 to move in the direction toward or away from the disc brake assembly of the wheel edge to be measured. Furthermore, a limit mechanism can be added to the guide rod of the guide rod cylinder 8 to control the displacement of the lower displacement sensor 502 to be consistent each time, and to perform corresponding point tests with the upper displacement sensor 501.

[0051] It can be understood that the setting of the displacement sensor 5 of this embodiment can realize the double-sided detection of the circular runout of the wheel-side disc brake assembly, and the upper displacement sensor 501 is used to detect the upper surface of the wheel surface of the wheel-side disc brake assembly, and the lower displacement sensor 502 is used to detect the lower surface of the wheel surface of the wheel-side disc brake assembly. Among them, the upper displacement sensor 501 is fixed to the support frame 1 through a fixing frame, and the lower displacement sensor 502 is movably set relative to the support frame 1. At the beginning of the detection, the guide rod of the guide rod cylinder 8 is retracted. After the wheel-side disc brake assembly is installed on the mounting platform 2, the material detection sensor 6 detects that the wheel-side disc brake assembly is placed on the mounting platform 2, and the PLC controller controls the guide rod cylinder 8 to extend and retract, and pushes the lower displacement sensor 502 to the bottom of the wheel surface of the wheel-side disc brake assembly to detect the lower surface of the wheel surface. The telescopic setting of the guide rod cylinder 8 can form an effective avoidance when the mounting platform 2 enters and exits the support frame 1 along the guide rail 10. Since the guide rod of the guide rod cylinder 8 can be telescopically adjusted, the lower displacement sensor 502 can be pushed to any position below the wheel surface, and can be opposite to the upper displacement sensor 501, or can detect other positions.

[0052] When the upper displacement sensor 501 and the lower displacement sensor 502 perform circular runout detection, the wheel surface rotates a complete circle and the distance of all points included in the circle is detected. It should be understood that circular runout refers to the difference between the maximum distance value and the minimum distance value reading measured by the upper displacement sensor 501 (or the lower displacement sensor 502) when the wheel surface of the wheel-side disc brake assembly to be tested rotates around the reference axis. The upper displacement sensor 501 and the lower displacement sensor 502 can both measure the circular runout value of the wheel-side disc brake assembly to be tested. In this embodiment, two sets of circular runout values ​​can be obtained simultaneously by forming a double-sided detection by the upper displacement sensor 501 and the lower displacement sensor 502. The circular runout values ​​measured by the upper displacement sensor 501 and the lower displacement sensor 502 can be referenced to each other to obtain accurate circular runout data, wherein the lower displacement sensor 502 can be moved to positions corresponding to different circles for detection, and cooperate with the detection data of the upper displacement sensor 501 to obtain more accurate circular runout detection values.

[0053] In addition, the upper displacement sensor 501 and the lower displacement sensor 502 of the present embodiment also detect the circumferential thickness difference of the wheel-side disc brake assembly. The upper displacement sensor 501 and the lower displacement sensor 502 are on the same line in the vertical direction. The upper displacement sensor 501 detects the distance from the upper surface of the wheel-side disc brake assembly to be measured, which is recorded as the upper displacement L1; the lower displacement sensor 502 detects the distance from the lower surface of the wheel-side disc brake assembly to be measured, which is recorded as the lower displacement L2; the distance between the upper displacement sensor 501 and the lower displacement sensor 502 is recorded as the total displacement L; according to the thickness of the wheel-side disc brake assembly = L-(L1+L2), the wheel-side disc brake assembly to be measured rotates one circle to obtain all circumferential thickness values ​​of the wheel-side disc brake assembly, and the difference between the maximum circumferential thickness value and the minimum circumferential thickness value of the wheel-side disc brake assembly is recorded as the circumferential thickness difference of the wheel-side disc brake assembly.

[0054] Further, in some examples, there are two lower displacement sensors 502, which are located at opposite sides of the wheel to be measured. Figure 2 If the left or right side of the image is blocked to a certain extent, the lower displacement sensor 502 that is not blocked can be selected for detection.

[0055] In some other embodiments of the multi-parameter detection device for wheel-side disc brake assembly provided by the present invention, combined with Figure 4 and Figure 5As shown, a mounting frame 9 is provided in the support frame 1, one end of the mounting frame 9 extends out of the support frame 1, and a plurality of vertically parallel arranged lifting cylinders 10 are provided on the mounting frame 9, the mounting platform 2 is fixedly connected to the cylinder push rod of the lifting cylinder 10, and a guide rail 11 extending from the lower position of the mounting platform 2 to the outside of the support frame 1 is also provided on the mounting frame 9, and a support block 12 is slidably installed on the guide rail 11, and a pushing cylinder 13 is fixedly provided on the portion of the mounting frame 9 extending out of the support frame 1, and the telescopic rod of the pushing cylinder 13 is connected to the support block 12, and the lifting cylinder 10 and the pushing cylinder 13 are electrically connected to the PLC controller, so that the PLC controller controls the lifting and lowering of the cylinder push rod of the lifting cylinder 10 to realize the lifting and lowering of the mounting platform 2, and the PLC controller controls the pushing cylinder 13 to push and pull the support block 12 supported below the mounting platform 2.

[0056] The structure of the mounting frame 9 of the present embodiment can facilitate the installation of the wheel-side disc brake assembly on the mounting platform 2. Before the detection begins, the wheel-side disc brake assembly to be tested is installed on the mounting platform 2, and the lifting cylinder 10 at the bottom of the mounting platform 2 lifts the mounting platform 2 upward to lift the mounting platform 2 and the wheel-side disc brake assembly to be tested; the pushing cylinder 13 pushes the support block 12 to move along the guide rail 11 to the bottom of the mounting platform 2, the lifting cylinder 10 descends, and the mounting platform 2 and the wheel-side disc brake assembly to be tested fall on the support block 12, and then the detection work begins.

[0057] The multi-parameter detection method for the wheel-side disc brake assembly provided by the present invention is described below. The multi-parameter detection method for the wheel-side disc brake assembly provided by the present invention is applicable to the various embodiments of the multi-parameter detection device for the wheel-side disc brake assembly mentioned above, and can be referenced to each other.

[0058] An embodiment of the present invention provides a multi-parameter detection method for a wheel-side disc brake assembly, comprising steps S1 to S7.

[0059] S1. Install the wheel disc brake assembly to be tested on the mounting platform 2.

[0060] S2, the PLC controller controls the material detection sensor 6 to detect whether there is a wheel disc brake assembly to be tested on the mounting table 2. If there is a wheel disc brake assembly to be tested, step S3 is performed. If there is no wheel disc brake assembly to be tested, it is prompted to repeat step S1.

[0061] S3, the PLC controller controls the power rotating mechanism 3 to move toward the mounting platform 2 until the power rotating mechanism 3 moves to the wheel disc brake assembly to be tested.

[0062] S4, the PLC controller controls the power rotating mechanism 3 to rotate, and provides rotational power for the wheel disc brake assembly to be tested. When the wheel disc brake assembly to be tested changes from a static state to a rotating state, the torque applied to the wheel disc brake assembly to be tested is detected by the torque sensor 4, and recorded as the starting force of the wheel disc brake assembly to be tested. If the starting force detection meets the standard, step S5 is performed. If the starting force detection does not meet the standard, it is prompted that the wheel disc brake assembly to be tested is unqualified.

[0063] S5. The distance change between the wheel surface of the rotating wheel-side disc brake assembly to be tested and the displacement sensor 5 is detected by the displacement sensor 5, and the circular runout value of the wheel-side disc brake assembly to be tested is calculated. If the circular runout detection value meets the standard, it is prompted that the circular runout of the wheel-side disc brake assembly to be tested is qualified. If the circular runout detection value does not meet the standard, it is prompted that the wheel-side disc brake assembly to be tested is unqualified.

[0064] S6. The PLC controller controls the power rotating mechanism 3 to stop rotating and move away from the mounting platform 2 to the initial position.

[0065] S7. According to the test results, the tested wheel-side disc brake assemblies are classified and placed.

[0066] Specifically, first, the wheel disc brake assembly to be tested is installed on the mounting platform 2, and the PLC controller controls the lifting cylinder 10 at the bottom of the mounting platform 2 to lift the mounting platform 2 upward, and lifts the mounting platform 2 and the wheel disc brake assembly to be tested; the PLC controller controls the pushing cylinder 13 to push the support block 12 to move along the guide rail 11 to the bottom of the mounting platform 2, and the PLC controller controls the lifting cylinder 10 to descend, and the mounting platform 2 and the wheel disc brake assembly to be tested fall on the support block 12; the material detection sensor 6 is used to detect whether there is a wheel disc brake assembly on the mounting platform 2. If the material detection sensor 6 detects the wheel disc brake assembly, the PLC controller controls the telescopic cylinder 103 to extend, so that the sliding plate 104 drives the power rotating mechanism 3 to press down, and the pressure plate 304 of the power rotating mechanism 3 moves to the wheel surface of the wheel disc brake assembly for pressing.

[0067] Then, the PLC controller controls the servo motor 301 to start working. The servo motor 301 drives the pressure plate 304 to rotate through the reducer 302 and the rotating shaft 303. The pressure plate 304 contacts the wheel surface of the wheel-side disc brake assembly and generates friction traction, gradually increasing the rotational power of the power rotating mechanism 3 acting on the wheel-side disc brake assembly to be tested. The torque sensor 4 detects the torque applied to the wheel-side disc brake assembly to be tested when it changes from a static state to a rotating state, which is recorded as the starting force of the wheel-side disc brake assembly to be tested. The detected starting force of the wheel-side disc brake assembly to be tested is compared with the upper limit standard value of the starting force, and the comparison result is transmitted to the PLC controller. If the starting force detection value is lower than the upper limit standard value of the starting force, the PLC controller controls the execution of the next step of circular runout detection. If the starting force detection value is higher than the upper limit standard value of the starting force, the PLC controller controls the prompt that the wheel-side disc brake assembly is unqualified.

[0068] It should be understood that a pressure sensor is provided on the power rotating mechanism 3 to detect the static friction force of the pressure plate 304 acting on the wheel disc brake assembly to be tested. For different wheel disc brake assemblies to be tested, the downward pressing distance of the pressure plate 304 of the power rotating mechanism 3 can be selected to adjust the magnitude of the positive pressure acting on the wheel disc brake assembly to be tested, so as to satisfy the maximum static friction force between the friction traction force. The material detection sensor 6 can detect and distinguish the model of the wheel disc brake assembly to be tested, so that the downward pressing distance of the pressure plate 304 of the power rotating mechanism 3 can be controlled by the PLC controller to provide the corresponding maximum static friction force. The starting force can be measured by the torque sensor 4 provided on the power rotating mechanism 3. The torque required for the wheel disc brake assembly to be tested to start moving from rest is the starting force of the wheel disc brake assembly to be tested.

[0069] Next, the circular runout of the wheel-side disc brake assembly that has passed the starting force test is tested. The circular runout of the wheel-side disc brake assembly to be tested includes: detecting the distance from the surface of the wheel-side disc brake assembly to be tested by the displacement sensor 5, recording all values ​​detected by the displacement sensor 5 when the wheel-side disc brake assembly to be tested rotates one circle, the difference between the maximum and minimum values ​​of all the detected values ​​is the circular runout value of the wheel-side disc brake assembly to be tested, the obtained circular runout value is compared with the circular runout upper limit standard value, and the comparison result is transmitted to the PLC controller. If the circular runout detection value is lower than the circular runout upper limit standard value, the PLC controller controls to prompt that it is qualified. If the circular runout detection value is higher than the circular runout upper limit standard value, the PLC controller controls to prompt that it is unqualified.

[0070] During the above-mentioned testing process, the test results can be displayed by lighting up the indicator light. When the wheel disc brake assembly test result is unqualified, the PLC controller controls the indicator light to light up red, and when the wheel disc brake assembly test result is qualified, the PLC controller controls the indicator light to light up green. After the test is completed, the workers can sort and place the products according to the test results, and put qualified products into the finished product box and unqualified products into the NG box.

[0071] Furthermore, in the steps of the multi-parameter detection method of the wheel-side disc brake assembly of the present invention, step S5 also includes the detection of the circumferential thickness difference of the wheel-side disc brake assembly. Specifically, the distance from the upper surface of the wheel-side disc brake assembly to be tested is detected by the upper displacement sensor 501, which is recorded as the upper displacement L1; the distance from the lower surface of the wheel-side disc brake assembly to be tested is detected by the lower displacement sensor 502, which is recorded as the lower displacement L2; the distance between the upper displacement sensor 501 and the lower displacement sensor 502 is recorded as the total displacement L; according to the wheel-side disc brake assembly thickness = L-(L1+L2), the wheel-side disc brake assembly to be tested rotates one circle to obtain all circumferential thickness values ​​of the wheel-side disc brake assembly, and the difference between the circumferential maximum thickness value and the minimum thickness value of the wheel-side disc brake assembly is recorded as the circumferential thickness difference of the wheel-side disc brake assembly.

[0072] It should be understood that the upper displacement sensor 501 and the lower displacement sensor 502 are used in the above embodiment to measure the thickness difference of the wheel surface of the wheel-rim disc brake assembly. Specifically, the upper displacement sensor 501 and the lower displacement sensor 502 are placed in the same vertical direction, and the distance between the upper displacement sensor 501 and the lower displacement sensor 502 is fixed. During the circular runout detection process, as the wheel surface rotates, the upper displacement sensor 501 measures the distance from the upper displacement sensor 501 to all points included in the circle when the upper surface of the wheel surface rotates a complete circle. At the same time, the lower displacement sensor 502 measures the distance from the lower displacement sensor 502 to all points included in the circle when the lower surface of the wheel surface rotates a complete circle. Since the upper displacement sensor 501 and the lower displacement sensor 502 are in the same vertical direction, the measured upper displacement L1 and lower displacement L2 can correspond one to one. The thickness value of the corresponding position of the wheel surface of the wheel-side disc brake assembly can be obtained by subtracting the corresponding upper displacement L1 and lower displacement L2 values ​​from the distance value (total displacement L) between the upper displacement sensor 501 and the lower displacement sensor 502. The thickness difference of the wheel surface of the wheel-side disc brake assembly can be obtained by calculating and comparing the thickness values ​​of all positions on the circumference of the wheel surface of the wheel-side disc brake assembly.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-parameter detection device for a wheel-side disc brake assembly, characterized in that: include: Support frame (1); A mounting platform (2) is arranged at the lower part of the support frame (1) and is used for mounting the wheel disc brake assembly to be tested; A power rotating mechanism (3) is located above the mounting platform (2); the power rotating mechanism (3) is movably arranged on the support frame (1) and can move in a direction toward or away from the mounting platform (2), and is used to move to the wheel disc brake assembly to be tested and provide rotational power for the wheel disc brake assembly to be tested; the power rotating mechanism (3) is provided with a torque sensor (4) and a material detection sensor (6); the torque sensor (4) is used to detect the torque applied to the wheel disc brake assembly to be tested when the wheel disc brake assembly to be tested changes from a static state to a rotational state, so as to determine the starting force of the wheel disc brake assembly to be tested; the material detection sensor (6) is used to detect whether the wheel disc brake assembly to be tested is installed on the mounting platform (2); A displacement sensor (5) is used to detect the change in the distance between the wheel surface and the displacement sensor (5) during the rotation of the wheel-rim disc brake assembly to be tested, so as to calculate the circular runout value and the circumferential thickness difference value of the wheel-rim disc brake assembly to be tested; the displacement sensor (5) comprises an upper displacement sensor (501) and a lower displacement sensor (502) arranged on the support frame (1); the sensor probe of the upper displacement sensor (501) faces the upper surface of the wheel surface of the wheel-rim disc brake assembly to be tested, and the sensor probe of the lower displacement sensor (502) faces the lower surface of the wheel surface of the wheel-rim disc brake assembly to be tested; the upper displacement sensor (501) is fixed to the support frame (1) via a fixing frame; the lower displacement sensor (502) is mounted on the guide rod end of a guide rod cylinder (8); the guide rod cylinder (8) is fixed to the support frame (1), and the guide rod cylinder (8) pushes the lower displacement sensor (502) to move in a direction toward or away from the wheel-rim disc brake assembly to be tested; A PLC controller is electrically connected to the power rotation mechanism (3), the torque sensor (4), the displacement sensor (5) and the material detection sensor (6) respectively to control the power rotation mechanism (3), the torque sensor (4), the displacement sensor (5) and the material detection sensor (6) to operate respectively.

2. The multi-parameter detection device for wheel-side disc brake assembly according to claim 1, characterized in that: The support frame (1) comprises a plurality of vertical light rods (101) arranged in parallel, the top ends of the plurality of vertical light rods (101) are connected to a top plate (102), a telescopic cylinder (103) is fixed to the lower surface of the top plate (102), the telescopic rod of the telescopic cylinder (103) is connected to a sliding plate (104), the sliding plate (104) is movably sleeved on the vertical light rods (101) via a shaft sleeve (105), and the power rotation mechanism (3) is fixed to the sliding plate (104); the bottom ends of the plurality of vertical light rods (101) are connected to a bottom plate (106), and the mounting platform (2) is arranged on the bottom plate (106).

3. The wheel disc brake assembly multi-parameter detection device according to claim 2, characterized in that: The power rotation mechanism (3) comprises: A servo motor (301) fixed to the sliding plate (104); A speed reducer (302), connected to the servo motor (301); A rotating shaft (303) connected to the output shaft of the reducer (302) via a coupling; A pressure plate (304) is connected to the torque sensor (4), the torque sensor (4) is connected to the rotating shaft (303) via a coupling, and the pressure plate (304) is used to contact the wheel disc brake assembly to be tested and generate friction traction.

4. The multi-parameter detection device for wheel-side disc brake assembly according to claim 3 is characterized in that: A pressure sensor is provided on the pressure plate (304), and the pressure sensor is used to detect the pressure of the pressure plate (304) acting on the wheel disc brake assembly to be tested, so as to control the telescopic cylinder (103) to adjust the downward pressing distance of the sliding plate (104) through the PLC controller.

5. The multi-parameter detection device for wheel-side disc brake assembly according to claim 3, characterized in that: The power rotation mechanism (3) is provided with an anti-deviation mechanism (7), and the anti-deviation mechanism (7) comprises: A transverse plate (701), wherein a bearing is embedded in the transverse plate (701), and the transverse plate (701) is sleeved on the outer periphery of the rotating shaft (303) through the bearing; Two vertical plates (702), the two vertical plates (702) being connected to opposite sides of the transverse plate (701), and the top ends of the vertical plates (702) being fixed to the sliding plate (104); A rib plate (703), wherein the rib plate (703) connects the sliding plate (104) and the vertical plate (702).

6. The multi-parameter detection device for wheel-side disc brake assembly according to any one of claims 1 to 5, characterized in that: A mounting frame (9) is arranged inside the support frame (1), one end of the mounting frame (9) protrudes from the support frame (1), a plurality of vertically parallel arranged lifting cylinders (10) are arranged on the mounting frame (9), the mounting platform (2) is fixedly connected to the cylinder push rods of the lifting cylinders (10), the mounting frame (9) is also provided with a guide rail (11) extending from the lower position of the mounting platform (2) to the outside of the support frame (1), a support block (12) is slidably mounted on the guide rail (11), a push cylinder (13) is fixedly arranged at the portion of the mounting frame (9) protruding from the outside of the support frame (1), a telescopic rod of the push cylinder (13) is connected to the support block (12), and the lifting cylinder (10) and the push cylinder (13) are electrically connected to the PLC controller.

7. A multi-parameter detection method for a wheel-side disc brake assembly, applicable to the multi-parameter detection device for a wheel-side disc brake assembly as claimed in any one of claims 1 to 6, characterized in that: include: S1. Mount the wheel disc brake assembly to be tested on the mounting platform (2); S2, the PLC controller controls the material detection sensor (6) to detect whether there is a wheel disc brake assembly to be tested on the mounting platform (2), if there is a wheel disc brake assembly to be tested, then step S3 is performed, if there is no wheel disc brake assembly to be tested, then step S1 is prompted to be performed again; S3, the PLC controller controls the power rotating mechanism (3) to move toward the mounting platform (2) until the power rotating mechanism (3) moves to the wheel disc brake assembly to be tested; S4, the PLC controller controls the power rotation mechanism (3) to rotate, and provides rotational power for the wheel disc brake assembly to be tested. When the wheel disc brake assembly to be tested changes from a static state to a rotating state, the torque applied to the wheel disc brake assembly to be tested is detected by the torque sensor (4), and recorded as the starting force of the wheel disc brake assembly to be tested. If the starting force detection meets the standard, step S5 is performed. If the starting force detection does not meet the standard, it is prompted that the wheel disc brake assembly to be tested is unqualified. S5, detecting the distance change between the wheel surface of the rotating wheel disc brake assembly to be tested and the displacement sensor (5) by means of the displacement sensor (5), and calculating the circular runout value of the wheel disc brake assembly to be tested. If the circular runout value meets the standard, it is indicated that the circular runout of the wheel disc brake assembly to be tested is qualified; if the circular runout value does not meet the standard, it is indicated that the wheel disc brake assembly to be tested is unqualified; S6, the PLC controller controls the power rotating mechanism (3) to stop rotating and move away from the mounting platform (2) to an initial position; S7. According to the test results, the tested wheel-side disc brake assemblies are classified and placed.

8. The multi-parameter detection method for wheel-side disc brake assembly according to claim 7, characterized in that: Step S5 also includes detecting the circumferential thickness difference of the wheel side disc brake assembly: detecting the distance from the upper surface of the wheel side disc brake assembly to be tested by the upper displacement sensor (501), which is recorded as the upper displacement L1; detecting the distance from the lower surface of the wheel side disc brake assembly to be tested by the lower displacement sensor (502), which is recorded as the lower displacement L2; the distance between the upper displacement sensor (501) and the lower displacement sensor (502) is recorded as the total displacement L; according to the wheel side disc brake assembly thickness = L-(L1+L2), the wheel side disc brake assembly to be tested rotates one circle to obtain all circumferential thickness values ​​of the wheel side disc brake assembly, and the difference between the maximum circumferential thickness value and the minimum circumferential thickness value of the wheel side disc brake assembly is recorded as the circumferential thickness difference of the wheel side disc brake assembly.

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