An eps controller detection device

Abstract

The utility model discloses a kind of EPS controller detection device, including device main body, servo motor is provided on device main body, rotating disc is installed on the output shaft of servo motor, by rotating disc and clamping mechanism, multiple controllers to be detected can be sequentially fixed on multiple clamping mechanisms on rotating disc first, when detecting instrument detects controller and needs to replace controller to be detected, servo motor can be started by control panel control, in turn rotating disc is driven to rotate by servo motor, so that controller to be detected on the clamping mechanism of adjacent rotating disc can be moved to detecting instrument, and by rotating screw through thread screwing relationship, detecting instrument moves towards rotating disc direction, so that the controller clamped on clamping mechanism is connected to detecting plug-in socket and detected, and in detection process, controller to be detected can be replaced by detected controller, greatly shorten the interval time in two detection processes, so as to improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of EPS controller testing equipment, specifically an EPS controller testing device. Background Technology

[0002] The power-on process of the EPS system involves two steps: first, powering on the battery; second, powering on the ignition switch. The operating logic for this part is as follows: after the battery and ignition signal are powered on, the MCU sends a relay enable signal, turning on transistor Q12 and thus the relay. After the ignition signal is turned off, Q12 turns off, and the relay de-energizes. Under this logic, if leakage occurs in this transistor (i.e., the collector and emitter terminals are broken down, but not completely), maintaining constant battery power while only turning off the ignition signal will result in the relay failing to disconnect properly after power-on and power-off, causing the controller to malfunction and posing a potential fault.

[0003] Current factory testing methods: After a PCB board completes all assembly steps and flashes the program, it needs to undergo factory testing. Only if the result is satisfactory can it leave the factory. The original solution was to connect a large load to the ECU assembly and then power it on once. If parameters such as voltage, current, and temperature were within the normal range, it was considered a qualified component and shipped normally. Under this solution, the ECU does not have a step of retesting after powering it on. This means that if the aforementioned transistor leakage occurs, it cannot be detected. If this faulty component is shipped out, it will cause the ECU to have no power steering fault after being installed in the vehicle by the OEM.

[0004] Publication number CN216411940U discloses an EPS controller factory performance testing device, including a chassis. A main unit is fixedly connected to the lower right corner of the chassis cavity. A feeding ramp is fixedly connected through the right wall of the chassis. An output component is arranged on the left side of the chassis cavity. A clamping drive mechanism is fixedly connected to the middle of the bottom of the chassis cavity. A detection socket is fixedly connected to the top of the chassis. The clamping drive mechanism clamps and pushes the product on the feeding ramp to the top of the detection socket for testing, and then places the product onto the output component. This utility model relates to the technical field of circuit testing systems. This EPS controller factory performance testing device, by adding a re-power-on retest step after routine testing, can effectively detect hidden problems such as transistor leakage, increase ECU reliability, reduce the return failure rate, and uses automated equipment with interconnected steps to ensure the reliability of the results.

[0005] However, after the device finishes testing the EPS controller, it needs to move the tested controller to the output component via a clamping drive mechanism before it can return to the feeding ramp to grab the next controller to be tested and perform the next test. This results in a long interval between the two tests, which greatly reduces work efficiency. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an EPS controller detection device, which solves the aforementioned technical problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an EPS controller testing device, comprising a device body, a servo motor mounted on the device body, a rotating disk mounted on the output shaft of the servo motor, multiple clamping mechanisms detachably connected to the rotating disk, a mounting block detachably connected to the top of the device body, a lead screw rotatably mounted inside the mounting block, a second transmission slider threadedly connected to the lead screw, a testing instrument mounted on the top of the second transmission slider, a testing socket provided on the testing instrument, four support feet protruding from the bottom of the device body, and a control panel electrically connected to the servo motor and the testing instrument on the device body.

[0010] Preferably, the main body of the device has a motor slot, and the servo motor is installed in the motor slot.

[0011] Preferably, the top of the main body of the device is provided with a support ring, and the top of the support ring is provided with a plurality of support rollers arranged at intervals along the circumferential direction, and the bottom surface of the rotating disk is in contact with the plurality of support rollers.

[0012] Preferably, the clamping mechanism has a transmission cavity, in which a bidirectional threaded rod is rotatably installed. Two mutually symmetrical first transmission sliders are threadedly connected to the bidirectional threaded rod, and a movable clamping block is detachably installed on the top of the first transmission slider.

[0013] Preferably, a rubber buffer pad is detachably connected to the movable clamping block, and an installation hole is provided on the first transmission slider. A connecting bolt is threaded into the installation hole, and the rubber buffer pad is fixed to the movable clamping block by the connecting bolt. The movable clamping block is fixed to the first transmission slider by the connecting bolt.

[0014] Preferably, both the bidirectional threaded rod and the lead screw are equipped with a handwheel at the end extending to the outside.

[0015] Preferably, the clamping mechanism has two symmetrical mounting legs protruding from it, and the mounting legs are fixed to the rotating disk by fixing bolts.

[0016] Compared with the prior art, this utility model provides an EPS controller testing device with the following advantages: This utility model, through its rotating disk and clamping mechanism, allows multiple controllers to be tested to be sequentially fixed onto multiple clamping mechanisms on the rotating disk. When the testing instrument finishes testing the controller and needs to replace the controller to be tested, the servo motor can be started via the control panel. The servo motor then drives the rotating disk to rotate, moving the controller to be tested from the adjacent clamping mechanism on the rotating disk to the front of the testing instrument. The testing instrument is then moved towards the rotating disk via a screw-driven threaded connection, allowing the controller clamped on the clamping mechanism to be connected to the testing connector for testing. Furthermore, during the testing process, the tested controller can be replaced with the controller to be tested, greatly shortening the interval between two testing processes and thus improving testing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the bidirectional threaded rod and the first transmission slider of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the support ring and support roller of this utility model;

[0020] Figure 4 This is a schematic diagram of the separation structure of the rotating disk and the main body of the device according to this utility model.

[0021] The components include: 1. Main body of the device; 2. Support feet; 3. Control panel; 4. Mounting block; 5. Detection instrument; 6. Handwheel; 7. Rotary disk; 8. Clamping mechanism; 9. Movable clamping block; 10. Rubber buffer pad; 11. Motor slot; 12. Mounting feet; 13. Mounting hole; 14. Connecting bolt; 15. Anti-slip groove; 16. Fixing bolt; 17. Bidirectional threaded rod; 18. Transmission cavity; 19. First transmission slider; 20. Support roller; 21. Support ring; 22. Servo motor; 23. Lead screw; 24. Second transmission slider; 25. Detection connector. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4 An EPS controller testing device includes a main body 1, a servo motor 22 mounted on the main body 1, a rotating disk 7 mounted on the output shaft of the servo motor 22, multiple clamping mechanisms 8 detachably connected to the rotating disk 7, a mounting block 4 detachably connected to the top of the main body 1, a lead screw 23 rotatably mounted inside the mounting block 4, a second transmission slider 24 threadedly connected to the lead screw 23, a testing instrument 5 mounted on the top of the second transmission slider 24, a testing connector 25 provided on the testing instrument 5, four support feet 2 protruding from the bottom of the main body 1, and a control panel 3 electrically connected to the servo motor 22 and the testing instrument 5 on the main body 1.

[0026] With the provided rotating disk 7 and clamping mechanism 8, multiple controllers to be tested can be sequentially fixed onto the clamping mechanisms 8 on the rotating disk 7. When the testing instrument 5 has finished testing the controller and needs to replace the controller to be tested, the servo motor 22 can be started through the control panel 3. The servo motor 22 then drives the rotating disk 7 to rotate, thereby moving the controller to be tested on the adjacent clamping mechanism 8 on the rotating disk 7 to the front of the testing instrument 5. The testing instrument 5 is then moved towards the rotating disk 7 by rotating the lead screw 23 through the threaded screw thread, so that the controller held on the clamping mechanism 8 is connected to the testing connector 25 for testing. During the testing process, the tested controller can be replaced with the controller to be tested, which greatly shortens the interval between two testing processes and thus improves the testing efficiency.

[0027] Specifically, in this embodiment, a motor slot 11 is provided on the main body 1 of the device, and a servo motor 22 is disposed in the motor slot 11.

[0028] Specifically, in this embodiment, a support ring 21 is provided on the top of the main body 1 of the device, and a plurality of support rollers 20 are provided on the top of the support ring 21 at intervals along the circumferential direction. The bottom surface of the rotating disk 7 is in contact with the plurality of support rollers 20.

[0029] The support ring 21 and support roller 20 provide support for the rotating disk 7, while reducing the friction between the rotating disk 7 and the support mechanism, thus ensuring the smoothness of the rotating disk 7's rotation process.

[0030] Specifically, in this embodiment, the clamping mechanism 8 has a transmission cavity 18, and a bidirectional threaded rod 17 is rotatably installed in the transmission cavity 18. Two mutually symmetrical first transmission sliders 19 are threadedly connected to the bidirectional threaded rod 17, and a movable clamping block 9 is detachably installed on the top of the first transmission slider 19.

[0031] Through the mutual cooperation of the bidirectional threaded rod 17 and the first transmission slider 19, the two first transmission sliders 19 can drive the two movable clamping blocks 9 to move closer to each other and clamp and fix the controller through the threaded advance relationship.

[0032] Specifically, in this embodiment, a rubber buffer pad 10 is detachably connected to the movable clamping block 9, and a mounting hole 13 is provided on the first transmission slider 19. A connecting bolt 14 is threaded into the mounting hole 13. The rubber buffer pad 10 is fixed to the movable clamping block 9 by the connecting bolt 14. The movable clamping block 9 is fixed to the first transmission slider 19 by the connecting bolt 14. A plurality of anti-slip grooves 15 are provided on the rubber buffer pad 10.

[0033] The rubber buffer pad 10 prevents the movable clamping block 9 from damaging the controller surface during the clamping process, and the connecting bolt 14 facilitates the quick replacement of the rubber buffer pad 10 and the movable clamping block 9.

[0034] Specifically, in this embodiment, a handwheel 6 is provided at the end of both the bidirectional threaded rod 17 and the lead screw 23 extending to the outside. The handwheel 6 facilitates the rotation of the bidirectional threaded rod 17 and the lead screw 23.

[0035] Specifically, in this embodiment, the clamping mechanism 8 is provided with two symmetrical mounting legs 12, which are fixed to the rotating disk 7 by fixing bolts 16, which facilitates the quick assembly and disassembly of the clamping mechanism 8.

[0036] It should be noted that the testing instrument is electrically connected to the servo motor and the mains power, and the testing method of the testing instrument for the controller, its more detailed structure and working principle are the same as those in the prior application of an EPS controller factory performance testing device disclosed in patent number CN216411940U, and will not be repeated in this application.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An EPS controller testing device, comprising a device body, characterized in that: The main body of the device is equipped with a servo motor, and a rotating disk is mounted on the output shaft of the servo motor. Multiple clamping mechanisms are detachably connected to the rotating disk. A mounting block is detachably connected to the top of the main body of the device, and a lead screw is rotatably mounted inside the mounting block. A second transmission slider is threaded onto the lead screw. A detection instrument is mounted on the top of the second transmission slider. The detection instrument has a detection socket. Four support feet protrude from the bottom of the main body of the device. A control panel electrically connected to the servo motor and the detection instrument is provided on the main body of the device.

2. The EPS controller detection device according to claim 1, characterized in that: The main body of the device has a motor slot, and the servo motor is installed in the motor slot.

3. The EPS controller detection device according to claim 1, characterized in that: The top of the main body of the device is provided with a support ring, and the top of the support ring is provided with a plurality of support rollers arranged at intervals along the circumference. The bottom surface of the rotating disk is in contact with the plurality of support rollers.

4. The EPS controller detection device according to claim 1, characterized in that: The clamping mechanism has a transmission cavity, in which a bidirectional threaded rod is rotatably installed. Two mutually symmetrical first transmission sliders are threadedly connected to the bidirectional threaded rod, and a movable clamping block is detachably installed on the top of the first transmission slider.

5. The EPS controller detection device according to claim 4, characterized in that: A rubber buffer pad is detachably connected to the movable clamping block. An installation hole is provided on the first transmission slider, and a connecting bolt is threaded into the installation hole. The rubber buffer pad is fixed to the movable clamping block by the connecting bolt, and the movable clamping block is fixed to the first transmission slider by the connecting bolt.

6. The EPS controller detection device according to claim 4, characterized in that: Both the bidirectional threaded rod and the lead screw have handwheels at the ends extending to the outside.

7. The EPS controller detection device according to claim 1, characterized in that: The clamping mechanism is provided with two symmetrical mounting legs, which are fixed to the rotating disk by fixing bolts.

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