Vehicle-mounted door lock testing device and testing method

Abstract

The invention relates to the technical field of automobile safety part performance detection, in particular to a vehicle-mounted door lock testing device and method, and the device comprises a machine body housing, an appearance detection mechanism, a signal detection mechanism, and a transfer shaft mechanism. The angle value and the size value of a microswitch elastic piece of a vehicle-mounted door lock shell can be detected through the appearance detection mechanism, safety verification is conducted on the switch performance through the signal detection mechanism, and automatic transferring and positioning are achieved through the transferring shaft mechanism. The signal detection mechanism comprises a lifting positioning assembly, a plurality of stirring and rotating driving assemblies and a stand column thrust detection assembly, and it is ensured that all performances of the vehicle-mounted door lock are comprehensively detected. The technical effect of efficiently and accurately detecting the safety and appearance quality of the vehicle-mounted door lock is achieved, and the detection efficiency and reliability are remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of automotive safety component performance testing, and particularly to an in-vehicle door lock testing device and a testing method. Background Art

[0002] With the continuous development of the automotive industry, consumers' requirements for automotive safety performance are increasing day by day. As an important part of automotive safety components, the quality and reliability of door locks directly affect the safety level of the whole vehicle. Therefore, it is crucial to ensure the performance testing of door locks during the production process. At present, the performance testing technology of door locks has become an important link in improving the overall safety of automobiles. Its development not only improves the testing efficiency but also provides a reliable guarantee for the quality control of the automotive manufacturing industry.

[0003] To meet the requirements of door lock performance testing, the industry usually adopts two traditional methods: manual inspection and simple mechanical testing. Manual inspection is mainly completed by manual operation, including visual inspection and simple function verification; simple mechanical testing is carried out by a fixed device to simulate specific working conditions for testing. In recent years, a variety of automated testing devices have emerged on the market. These devices usually integrate multiple detection functions to achieve a comprehensive performance evaluation of door locks. However, these means still have certain limitations in specific applications.

[0004] Although the existing manual inspection, simple mechanical testing, and automated testing devices in the prior art can partially meet the door lock detection requirements, they still have deficiencies in adapting to different vehicle models and improving the testing accuracy. Especially for door locks with complex functions (such as full lock, half lock, child lock, central lock, etc.), the existing detection means are difficult to achieve efficient and accurate performance verification, and there is also a lack of effective automated solutions in appearance detection, resulting in low detection efficiency and poor consistency.

[0005] Therefore, based on the above problems, the prior art needs to be improved. Summary of the Invention

[0006] One object of this application is to provide an in-vehicle door lock testing device.

[0007] The above technical object of this application is achieved through the following technical solutions: An in-vehicle door lock testing device, characterized by comprising: A body housing; An appearance detection mechanism, arranged inside the body housing, for detecting the angle value and dimension value of the micro switch spring piece of the in-vehicle door lock housing; A signal detection mechanism, arranged inside the body housing, for performing safety verification on the switching performance of the in-vehicle door lock housing; The transfer shaft mechanism is arranged in the body shell, and is used to drive the vehicle door lock shell to pass through the manual material loading and unloading position, the signal detection position and the camera appearance detection position in sequence, so as to complete manual loading and unloading, signal detection and appearance detection in sequence.

[0008] By adopting the above technical solutions, comprehensive automated testing of vehicle door lock housings is achieved. The appearance detection mechanism can accurately detect the angle and size values ​​of the micro switch spring to ensure that it meets the design standards, thereby improving the detection accuracy and consistency. The signal detection mechanism ensures the reliability and safety of vehicle door locks in different states by safely verifying the performance of the housing switch. The setting of the transfer axis mechanism realizes the automated transmission of products between various testing processes, improves the testing efficiency and reduces the errors that may be caused by manual intervention, thereby improving the overall automation level and testing quality of the test device.

[0009] Optionally, the signal detection mechanism includes: A lifting and positioning component, used for driving the signal detection mechanism to lift and position to a specified height; A first toggle assembly is used to toggle the full-lock shrapnel micro switch of the vehicle-mounted door lock housing to put the full-lock shrapnel micro switch in a circuit state or an open circuit state; A second toggle assembly is used to toggle the half-lock micro switch of the vehicle door lock housing to put the half-lock micro switch in a circuit state or an open circuit state; A first rotary drive assembly, driven to rotate by a power device, is used to toggle the child lock micro switch of the vehicle door lock housing to put the child lock micro switch in a circuit state or an open circuit state; A second rotation drive assembly is driven to rotate by a power device and is used to toggle the central lock micro switch of the vehicle door lock housing to put the central lock micro switch in a circuit or open circuit state; The column thrust detection component outputs a preset thrust through a pressure output device to push the column of the vehicle door lock housing, and combines with a sensor to detect whether the column is broken. If the column is broken, an alarm is triggered.

[0010] By adopting the above technical solution, accurate detection of various switch states of the vehicle door lock housing is achieved. The lifting and positioning component enables the signal detection mechanism to be accurately lifted and positioned to the specified height position, ensuring the stability and consistency of the detection process; the first toggle component can accurately toggle the full lock spring micro switch to put it in a pass or open state, improving the reliability of the full lock function detection; the second toggle component toggle the half lock micro switch to ensure that the half lock function detection is accurate. The first rotary drive component is driven to rotate by the power device to accurately toggle the child lock micro switch, improving the efficiency and accuracy of the child lock function detection; the second rotary drive component is also driven to rotate by the power device to realize the toggle operation of the central lock micro switch, ensuring the comprehensiveness of the central lock function detection; the column thrust detection component outputs a preset thrust to push the column through the pressure output device, and combines the sensor to detect whether the column is broken, effectively judging the strength and safety of the column, and triggering an alarm when the column is broken, promptly reminding the operator to deal with abnormal situations.

[0011] Optionally, the lifting and positioning assembly includes a mounting frame, a positioning guide rail is fixedly provided on the mounting frame, a positioning guide block is adapted to be installed on the positioning guide rail, and the positioning guide block is transmission-connected with a positioning drive member; the positioning drive member drives the positioning guide block to slide linearly along the positioning guide rail; a mounting platform is installed on the positioning guide block, and the first toggle assembly, the second toggle assembly, the first rotation drive assembly, the second rotation drive assembly and the column thrust detection assembly are all arranged on the mounting platform to be lifted and lowered synchronously with the positioning guide block.

[0012] By adopting the above technical solution, the precise lifting and positioning of the signal detection mechanism is achieved. The positioning guide block slides linearly along the positioning guide rail to ensure that the installation platform remains stable during the lifting process, thereby improving the detection accuracy. Each detection component (first toggle component, second toggle component, first rotation drive component, second rotation drive component and column thrust detection component) rises and falls synchronously with the installation platform, and can adapt to vehicle door lock housings of different heights, thereby enhancing the versatility of the device. The sliding position of the positioning guide block is controlled by the positioning drive to achieve precise positioning of the installation platform, thereby ensuring the accuracy and consistency of each detection process.

[0013] Optionally, a buffer is arranged between the body shell and the mounting platform, and the buffer is used to play a buffering and shock-absorbing role during the lifting and lowering of the mounting platform to avoid damage to the components caused by hard collision; a pressure roller is provided on the mounting platform, and an elastic component is provided at the end of the pressure roller away from the mounting platform for fixing the vehicle door lock shell.

[0014] By adopting the above technical solution, the buffer can effectively absorb the impact force during the lifting and lowering of the installation platform, avoiding damage to the components of the signal detection mechanism due to hard collision, thereby improving the stability and service life of the equipment. The pressure roller and the elastic component can firmly fix the vehicle door lock housing to ensure that it will not be displaced or loosened during the detection process, further ensuring the accuracy and reliability of the detection results.

[0015] Optionally, the first toggle assembly includes a first cylinder disposed on the mounting platform, and a first sliding block is disposed at an output end of the first cylinder; The second toggle assembly comprises a second cylinder disposed on the mounting platform, and a second sliding block is disposed at the output end of the second cylinder; The first rotation drive assembly includes a first bearing seat disposed on the mounting platform, a first rotating shaft is disposed in the first bearing seat, one end of the first rotating shaft is transmission-connected to a first motor, a first shifting block is disposed at the other end of the first rotating shaft away from the first motor, and the first motor drives the first shifting block to rotate; a first sensor is disposed on the mounting platform, and a first sensor sheet is disposed on the first rotating shaft; The second rotation drive assembly includes a second bearing seat arranged on the mounting platform, a second rotating shaft is arranged in the second bearing seat, one end of the second rotating shaft is transmission-connected to a second motor, a second shifting block is arranged at the other end of the second rotating shaft away from the second motor, and the second motor drives the second shifting block to rotate; a second sensor is arranged on the mounting platform, and a second sensor sheet is arranged on the second rotating shaft; The column thrust detection assembly comprises a proportional valve, and a pushing block is provided at the output end of the proportional valve.

[0016] By adopting the above technical solution, accurate detection of various switch states of the vehicle door lock housing is achieved. The setting of the first cylinder and the first sliding block can accurately toggle the full lock spring micro switch to ensure that it is in the specified passage or open state, thereby improving the accuracy and consistency of detection. The setting of the second cylinder and the second sliding block can accurately toggle the half lock micro switch, further improving the detection capability of different lock states. The design of the first motor driving the first rotating shaft and the first dial block to rotate can accurately toggle the child lock micro switch, and combined with the first sensor and the first sensor sheet, realize accurate control and detection of the rotation angle and state. The design of the second motor driving the second rotating shaft and the second dial block to rotate can accurately toggle the central lock micro switch, and cooperate with the second sensor and the second sensor sheet to further improve the reliability and accuracy of the detection system. The setting of the proportional valve and the push block is used to apply a preset thrust to the column and detect whether it is broken. Combined with the sensor to realize the automatic alarm function, it effectively improves the efficiency and accuracy of safety detection.

[0017] Optionally, the appearance detection mechanism includes an industrial camera and an image processing unit. The industrial camera is used to collect images of the microswitch shrapnel of the vehicle door lock housing, and the image processing unit is used to analyze and process the collected images to obtain the angle value and size value of the microswitch shrapnel, and compare them with preset standard values to determine whether the microswitch shrapnel is qualified.

[0018] By adopting the above technical solution, the industrial camera can accurately collect images of the microswitch shrapnel of the vehicle door lock housing. After the image processing unit analyzes and processes the images, the angle value and size value of the microswitch shrapnel can be accurately obtained. Further, by comparing these values with the preset standard values, it is possible to effectively determine whether the microswitch shrapnel meets the quality requirements, thereby ensuring the accuracy and reliability of the appearance detection of the vehicle door lock housing.

[0019] Optionally, the transfer shaft mechanism includes a transfer shaft module. An installation base is provided on the transfer shaft module for installing the vehicle door lock housing, and the transfer shaft module is used to drive the installation base to move; a position sensor is provided inside the body housing, and the position sensor is used to detect the position of the installation base to ensure that the vehicle door lock housing can accurately reach the manual loading and unloading position, the signal detection position, and the camera appearance detection position.

[0020] By adopting the above technical solution, the transfer shaft module can drive the installation base to accurately move between different detection positions, ensuring that the vehicle door lock housing accurately reaches the manual loading and unloading position, the signal detection position, and the camera appearance detection position in sequence, thereby realizing the efficient execution of the automated test process. The setting of the position sensor further improves the accuracy of position detection, effectively avoiding detection errors caused by position deviation and enhancing the reliability of the overall test device.

[0021] The second object of the present application is to provide a method for testing a vehicle door lock.

[0022] The above technical object of the present application is achieved by the following technical solution: A method for testing a vehicle door lock, using the above-mentioned vehicle door lock test device, includes the following steps: Manually connect the vehicle door lock housing with the connector, place the vehicle door lock housing on the installation base of the transfer shaft mechanism as a detection tooling, and trigger the test process through the start button; The transfer shaft module of the transfer shaft mechanism drives the installation base to move towards the signal detection position, and the position sensor monitors in real time to ensure that the installation base and the vehicle door lock housing accurately reach the designated position; The upper computer detects the resistance value when the microswitch of the vehicle door lock housing is disconnected, and judges the detection result according to the preset standard; if the detection result is unqualified, the vehicle door lock housing is taken out from the installation base; if the detection result is qualified, proceed to the next step; The positioning drive of the lifting and positioning assembly drives the positioning guide block to slide along the positioning guide rail, so that the installation platform of the lifting and positioning assembly descends. During this process, the buffer plays a buffering and shock-absorbing role to prevent the installation platform from having a hard collision with other components; The first cylinder of the first toggle assembly drives the first sliding block to toggle the full-lock spring micro switch of the vehicle door lock housing; The second cylinder of the second toggle assembly drives the second sliding block to toggle the half-lock micro switch of the vehicle door lock housing; The first motor of the first rotary drive assembly drives the first rotary shaft and the first shifting block thereon to rotate, thereby shifting the child lock micro switch of the vehicle door lock housing; The second motor of the second rotary drive assembly drives the second rotary shaft and the second shifting block thereon to rotate, thereby shifting the central lock micro switch of the vehicle door lock housing; The upper computer detects the resistance value of the micro switch of the vehicle door lock housing when it is turned on, and judges the test result; if the test result is unqualified, the vehicle door lock housing is removed from the mounting base; if the test result is qualified, the subsequent process continues; After the conduction resistance value detection result is judged, the transfer axis module of the transfer axis mechanism drives the mounting base to move to the camera appearance detection position; The industrial camera of the appearance inspection mechanism takes a picture of the micro switch shrapnel of the vehicle door lock housing, and the image processing unit of the appearance inspection mechanism analyzes and processes the image collected by the industrial camera to obtain the angle value and size value of the micro switch shrapnel, and then compares these values ​​with the preset standard values ​​to determine whether the appearance of the micro switch shrapnel of the vehicle door lock housing is qualified; The transfer axis module of the transfer axis mechanism drives the mounting base to move back to the manual material loading and unloading position. If the camera appearance inspection result is unqualified, the alarm device sends out an audible and visual alarm signal, and the vehicle door lock housing is removed from the mounting base; After completing all the above testing processes, this test is over and the next round of vehicle door lock housing testing can be restarted.

[0023] By adopting the above technical scheme, the automated test of the vehicle door lock housing is realized, and the test efficiency and accuracy are significantly improved. The vehicle door lock housing is driven by the transfer shaft mechanism to pass through the manual material loading and unloading position, signal detection position and camera appearance detection position in turn, so as to realize the automation of the test process, reduce manual intervention, and improve the consistency and efficiency of the test. The lifting and positioning assembly, the first toggle assembly, the second toggle assembly, the first rotary drive assembly and the second rotary drive assembly in the signal detection mechanism work together to accurately toggle and detect the various micro switch states on the vehicle door lock housing, ensuring the comprehensiveness and accuracy of the test. The buffer in the lifting and positioning assembly effectively avoids the hard collision between the mounting platform and other components, protects each component from damage, and prolongs the service life of the equipment. The first toggle assembly, the second toggle assembly, the first rotary drive assembly and the second rotary drive assembly respectively perform precise operations on the micro switches of full lock, half lock, child lock and central lock, ensuring the safety verification of various lock functions. The appearance detection mechanism uses industrial cameras and image processing units to detect the angle value and size value of the micro switch shrapnel, realizing a high-precision evaluation of the product appearance quality. The entire test method ensures that the performance and appearance of the vehicle door lock housing meet the standard requirements through the detection and judgment of the resistance value by the upper computer and combines it with the appearance test results, thereby improving the product quality control level.

[0024] In summary, this application has at least the following beneficial effects: 1. By setting up the signal detection mechanism and the transfer shaft mechanism, it can automatically complete the safety performance verification of various functions of the vehicle door lock housing, such as full lock, half lock, child lock, central lock, etc., which significantly improves the test efficiency and detection accuracy; 2. The appearance inspection agency uses industrial cameras and image processing units to realize the automatic inspection of the angle and size values ​​of the micro switch spring of the vehicle door lock housing, solving the problem of low efficiency and poor consistency in appearance inspection of traditional methods; 3. The transfer axis mechanism drives the vehicle door lock housing to pass through the manual loading and unloading position, signal detection position and camera appearance detection position in sequence, realizing the automation and orderliness of the detection process, adapting to the needs of different models, and improving the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a vehicle door lock testing device; Figure 2 It is a schematic diagram of the structure of the appearance detection mechanism, the signal detection mechanism and the transfer axis mechanism; Figure 3 is a structural schematic diagram of a signal detection mechanism; Figure 4 It is a structural schematic diagram of a lifting and positioning assembly, a first toggle assembly, and a second toggle assembly; Figure 5 is a schematic diagram of the structure of the first rotation drive group and the second rotation drive group; Figure 6 It is a structural diagram of the appearance inspection mechanism; Figure 7 It is a structural diagram of the transfer axis mechanism.

[0026] Reference numerals 1. Body shell; 2. Appearance detection mechanism; 3. Signal detection mechanism; 31. Lifting and positioning assembly; 311. Mounting frame; 312. Positioning guide rail; 313. Positioning guide block; 314. Positioning drive member; 315. Mounting platform; 316. Buffer; 317. Pressing roller; 318. Elastic assembly; 32. First toggle assembly; 321. First cylinder; 322. First sliding block; 33. Second toggle assembly; 331. Second cylinder; 332. Second sliding block; 34. First rotation drive group; 341. First bearing Seat; 342, first rotating shaft; 343, first motor; 344, first shift block; 345, first sensor; 346, first sensor sheet; 35, second rotating drive assembly; 351, second bearing seat; 352, second rotating shaft; 353, second motor; 354, second shift block; 355, second sensor; 356, second sensor sheet; 36, column thrust detection assembly; 361, proportional valve; 362, push block; 4, transfer shaft mechanism; 41, transfer shaft module; 42, mounting base; 43, positioning sensor. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] Embodiment 1, in this embodiment, refer to Figure 1 - Figure 2 A vehicle door lock test device includes a body shell 1, an appearance detection mechanism 2, a signal detection mechanism 3 and a transfer shaft mechanism 4, wherein the appearance detection mechanism 2, the signal detection mechanism 3 and the transfer shaft mechanism 4 are all arranged in the body shell 1. By integrating each mechanism in the body shell 1, each mechanism component can be effectively protected, while ensuring the convenience and safety of operation during the detection process, thereby achieving the effect of improving the detection efficiency and accuracy.

[0029] Reference Figure 3 - Figure 5 The signal detection mechanism 3 includes a lifting and positioning component 31, a first toggle component 32, a second toggle component 33, a first rotation drive component 34, a second rotation drive component 35 and a column thrust detection component 36.

[0030] Specifically, the lifting and positioning assembly 31 is used to drive the entire signal detection mechanism 3 to lift and position to a specified height position, and specifically includes a mounting frame 311, a positioning guide rail 312, a positioning guide block 313, and a positioning driver 314. The positioning driver 314 can use a linear motor or a servo motor to drive the positioning guide block 313 to slide linearly along the positioning guide rail 312 to ensure the accuracy and stability of the lifting and positioning. The mounting platform 315 is set on the positioning guide block 313 to carry other components to achieve synchronous lifting.

[0031] The first toggle assembly 32 includes a first cylinder 321 fixedly mounted on the mounting platform 315, and the output end of the first cylinder 321 is connected to a first sliding block 322. When the vehicle door lock is tested, the first cylinder 321 drives the first sliding block 322 to move, and the toggle operation of the full-lock shrapnel micro switch of the vehicle door lock housing is realized by accurately controlling the stroke and force of the first sliding block 322, thereby making the full-lock shrapnel micro switch in a circuit or open state, which is convenient for subsequent testing of its electrical performance.

[0032] The second toggle assembly 33 is composed of a second cylinder 331 and a second sliding block 332. The second cylinder 331 is fixed on the mounting platform 315, and the second sliding block 332 at its output end can accurately toggle the half-lock micro switch of the vehicle door lock housing under the drive of the second cylinder 331, so that it switches between the passage state and the open state, providing conditions for the performance detection of the half-lock micro switch.

[0033] The first rotation drive assembly 34 includes a first bearing seat 341, a first rotating shaft 342, a first motor 343, a first shift block 344, a first sensor 345 and a first sensor sheet 346. The first bearing seat 341 is mounted on the mounting platform 315 to provide a stable support and rotation base for the first rotating shaft 342. The first motor 343 is used as a power source and is connected to the first rotating shaft 342 in a transmission manner. When the first motor 343 is started, the first rotating shaft 342 and the first shift block 344 thereon are driven to rotate. During the rotation process, the first shift block 344 will accurately shift the child lock micro switch of the vehicle door lock housing to switch its state. The first sensor sheet 346 is fixed on the first rotating shaft 342 and rotates with the first rotating shaft 342. The first sensor 345 is mounted on the mounting platform 315, and its position corresponds to the first sensor sheet 346. When the first rotating shaft 342 rotates, the first sensing sheet 346 passes through the first sensor 345, and the first sensor 345 can sense the position change of the first sensing sheet 346. Through this sensing mechanism, the rotation angle and rotation position of the first rotating shaft 342 can be accurately monitored, so as to achieve precise control of the action of the first shifting block 344 to shift the child lock micro switch, ensure the consistency and accuracy of each shifting operation, and improve the reliability of the detection result.

[0034] The working principle of the second rotation drive assembly 35 is similar to that of the first rotation drive assembly 34. It includes a second bearing block 351, a second rotating shaft 352, a second motor 353, a second shifting block 354, a second inductor 355, and a second induction piece 356. The second bearing block 351 is installed on the installation platform 315 to provide support for the second rotating shaft 352. The second motor 353 drives the second rotating shaft 352 and the second shifting block 354 thereon to rotate. The second shifting block 354 is used to toggle the central locking micro switch of the vehicle door lock housing. The second inductor 355 and the second induction piece 356 work together. The second induction piece 356 is fixed on the second rotating shaft 352, and the second inductor 355 is installed at a position on the installation platform 315 opposite to the second induction piece 356. During the rotation of the second rotating shaft 352, the second inductor 355 precisely monitors the rotation state of the second rotating shaft 352 by sensing the position change of the second induction piece 356, realizing precise control of the action of the second shifting block 354 toggling the central locking micro switch, and ensuring the accuracy and stability of detection.

[0035] The column thrust detection assembly 36 includes a proportional valve 361 and a pushing block 362. The proportional valve 361 outputs a preset thrust to push the column of the vehicle door lock housing, and a sensor is combined to detect whether the column is broken. If it is broken, an alarm is triggered. The pressure output device can also be realized by a hydraulic cylinder to ensure the accuracy and controllability of thrust output.

[0036] Refer to Figure 6 , the appearance detection mechanism 2 includes an industrial camera and an image processing unit. The industrial camera uses a high-resolution camera, which can precisely collect images of the micro switch elastic sheet of the vehicle door lock housing, such as a CCD or CMOS type camera. The image processing unit processes the collected images through image algorithms to obtain the angle value and size value of the micro switch elastic sheet, and compares them with the preset standard values to judge whether they are qualified. The image processing unit can be realized by a digital signal processor or an embedded computing module to ensure the image processing speed and accuracy.

[0037] Refer to Figure 7 , the transfer shaft mechanism 4 includes a transfer shaft module 41, an installation base 42, and a positioning sensor (43). The transfer shaft module 41 can adopt a ball screw or a linear guide system to drive the installation base 42 to move. The installation base 42 is used to install the vehicle door lock housing, and a sensor cooperating with the positioning sensor 43 is arranged thereon. The transfer shaft module 41 drives the product to pass through the manual loading and unloading position, the signal detection position, and the camera appearance detection position in sequence to ensure the smooth progress of the detection process.

[0038] The implementation principle of this embodiment is: by integrating the appearance detection mechanism 2, the signal detection mechanism 3 and the transfer shaft mechanism 4 into the body shell 1, a full range of performance detection of the vehicle door lock shell is achieved. The appearance detection mechanism 2 uses an industrial camera and an image processing unit to accurately detect the angle value and size value of the micro switch spring. The signal detection mechanism 3 simulates different working conditions through a variety of toggle components and rotary drive components to verify the safety of the shell switch performance. The transfer shaft mechanism 4 is responsible for driving the product to complete each detection process. This integrated design not only improves the detection efficiency, but also ensures the consistency and accuracy of the detection results, providing strong support for quality control in the automobile manufacturing industry.

[0039] Embodiment 2: This embodiment is different from the above embodiment in that the structural design of the signal detection mechanism 3 is further optimized. Specifically, a buffer 316 is added to the lifting and positioning assembly 31 to play a buffering and shock absorbing role during the lifting and lowering process of the installation platform 315 to prevent damage to the components caused by hard collision. The buffer 316 can be implemented by a spring shock absorber or an airbag shock absorber to ensure the buffering effect without affecting the lifting accuracy.

[0040] In addition, a pressure roller 317 and an elastic component 318 are added to the mounting platform 315 to fix the vehicle door lock housing. The end of the pressure roller 317 away from the mounting platform 315 is connected to the elastic component 318, such as a spring or a rubber pad, so that the pressure roller 317 can automatically adjust the pressure according to the shape of the housing to ensure that it is firmly fixed without damaging the housing surface.

[0041] The implementation principle of this embodiment is as follows: by adding the buffer 316 and the pressure roller 317 structure, the stability and reliability of the signal detection mechanism 3 are further improved. The buffer 316 effectively reduces the impact force during the lifting and lowering of the mounting platform 315, protecting the components from damage; the pressure roller 317 and the elastic component 318 ensure that the housing is firmly fixed to avoid displacement or damage during the detection process. These optimized designs significantly improve the detection accuracy and equipment life, and provide a more reliable solution for the performance verification of complex function door locks.

[0042] Embodiment 3, the vehicle door lock testing method provided in the embodiment of the present application, using the above-mentioned vehicle door lock testing device, comprises the following steps: Manually connect the vehicle door lock housing to the connector, place the vehicle door lock housing on the mounting base 42 of the transfer shaft mechanism 4 as a testing tool, and trigger the test process through the start button; the transfer shaft module 41 of the transfer shaft mechanism 4 drives the mounting base 42 to move toward the signal detection position, and the positioning sensor 43 monitors in real time to ensure that the mounting base 42 and the vehicle door lock housing accurately arrive at the specified position; the upper computer detects the resistance value of the vehicle door lock housing microswitch when it is disconnected, and judges the test result according to the preset standard; if the test result is unqualified, the vehicle door lock housing is removed from the mounting base 42; if the test result is qualified, proceed to the next step; the positioning of the lifting and positioning assembly 31 The driving member 314 drives the positioning guide block 313 to slide along the positioning guide rail 312, so that the mounting platform 315 of the lifting and positioning assembly 31 descends. In this process, the buffer 316 plays a buffering and shock-absorbing role to prevent the mounting platform 315 from having a hard collision with other components; the first cylinder 321 of the first toggle assembly 32 drives the first sliding block 322 to toggle the full-lock spring microswitch of the vehicle door lock housing; the second cylinder 331 of the second toggle assembly 33 drives the second sliding block 332 to toggle the half-lock microswitch of the vehicle door lock housing; the first motor 343 of the first rotating drive group 34 drives the first rotating shaft 342 and the first toggle block 34 thereon 4 rotates, thereby toggling the child lock micro switch of the vehicle door lock housing; the second motor 353 of the second rotary drive assembly 35 drives the second rotary shaft 352 and the second dial block 354 thereon to rotate, toggling the central lock micro switch of the vehicle door lock housing; the upper computer detects the resistance value of the vehicle door lock housing micro switch when it is turned on, and judges the test result; if the test result is unqualified, the vehicle door lock housing is removed from the mounting base 42; if the test result is qualified, the subsequent process is continued; after completing the judgment of the conduction resistance test result, the transfer shaft module 41 of the transfer shaft mechanism 4 drives the mounting base 42 to move to the camera appearance detection position; the industrial camera of the appearance detection mechanism 2 The micro switch shrapnel of the vehicle door lock shell is photographed, and the image processing unit of the appearance detection mechanism 2 analyzes and processes the image collected by the industrial camera to obtain the angle value and size value of the micro switch shrapnel, and then compares these values ​​with the preset standard values ​​to determine whether the appearance of the micro switch shrapnel of the vehicle door lock shell is qualified; the transfer axis module 41 of the transfer axis mechanism 4 drives the mounting base 42 to move back to the manual loading and unloading position. If the camera appearance detection result is unqualified, the alarm device sends out an audible and visual alarm signal, and the vehicle door lock shell is removed from the mounting base 42; after completing all the above-mentioned detection processes, this test is completed, and the next round of vehicle door lock shell testing can be restarted.

[0043] The implementation principle of this embodiment is as follows: By reasonably arranging each detection step, it is ensured that the vehicle door lock housing sequentially completes signal detection and appearance detection during the detection process. This method not only improves the detection efficiency but also guarantees the accuracy and consistency of the detection results, providing a scientific basis and technical support for quality control in the automotive manufacturing industry.

[0044] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A vehicle door lock testing device, characterized in that, include: Body shell (1); An appearance detection mechanism (2) is arranged in the housing (1) and is used to detect the angle value and size value of the micro switch spring of the vehicle door lock housing; A signal detection mechanism (3) is arranged in the housing (1) and is used to perform safety verification on the switch performance of the vehicle door lock housing; The transfer shaft mechanism (4) is arranged in the body shell (1) and is used to drive the vehicle door lock shell to pass through the manual loading and unloading position, the signal detection position and the camera appearance detection position in sequence, so as to complete the manual loading and unloading, signal detection and appearance detection in sequence.

2. The on-vehicle door lock testing device according to claim 1, characterized in that, The signal detection mechanism (3) comprises: A lifting and positioning component (31) is used to drive the signal detection mechanism (3) to lift and position to a specified height; A first toggle assembly (32) is used to toggle the full-lock shrapnel micro switch of the vehicle-mounted door lock housing to place the full-lock shrapnel micro switch in a circuit state or an open circuit state; A second toggle assembly (33) is used to toggle a half-lock micro switch of the vehicle-mounted door lock housing to place the half-lock micro switch in a circuit state or an open circuit state; A first rotation drive assembly (34) is driven to rotate by a power device and is used to toggle a child lock micro switch of the vehicle door lock housing to place the child lock micro switch in a circuit state or an open circuit state; A second rotation drive assembly (35) is driven to rotate by a power device and is used to toggle a central lock micro switch of the vehicle door lock housing to put the central lock micro switch in a circuit state or an open circuit state; The column thrust detection component (36) outputs a preset thrust through a pressure output device to push the column of the vehicle door lock housing, and detects whether the column is broken in combination with a sensor, and triggers an alarm if the column is broken.

3. The on-vehicle door lock testing device according to claim 2, characterized in that, The lifting and positioning assembly (31) comprises a mounting frame (311), a positioning guide rail (312) is fixedly arranged on the mounting frame (311), a positioning guide block (313) is adapted to be installed on the positioning guide rail (312), and the positioning guide block (313) is transmission-connected with a positioning driving member (314); the positioning driving member (314) drives the positioning guide block (313) to slide linearly along the positioning guide rail (312); a mounting platform (315) is installed on the positioning guide block (313), and the first toggle assembly (32), the second toggle assembly (33), the first rotation drive assembly (34), the second rotation drive assembly (35) and the column thrust detection assembly (36) are all arranged on the mounting platform (315) to be synchronously lifted and lowered with the positioning guide block (313).

4. The on-vehicle door lock testing device according to claim 3, characterized in that, A buffer (316) is provided between the body shell (1) and the mounting platform (315), and the buffer (316) is used to play a buffering and shock-absorbing role during the lifting and lowering process of the mounting platform (315) to prevent hard collision from causing damage to various components; a pressure roller (317) is provided on the mounting platform (315), and an elastic component (318) is provided at one end of the pressure roller (317) away from the mounting platform (315) for fixing the vehicle door lock housing.

5. The on-vehicle door lock testing device according to claim 3, wherein, The first toggle assembly (32) comprises a first cylinder (321) arranged on the mounting platform (315), and a first sliding block (322) is arranged at the output end of the first cylinder (321); The second toggle assembly (33) comprises a second cylinder (331) arranged on the mounting platform (315), and a second sliding block (332) is arranged at the output end of the second cylinder (331); The first rotating drive assembly (34) comprises a first bearing seat (341) arranged on the mounting platform (315), a first rotating shaft (342) is arranged in the first bearing seat (341), one end of the first rotating shaft (342) is drivingly connected to a first motor (343), a first shifting block (344) is arranged at the other end of the first rotating shaft (342) away from the first motor (343), and the first motor (343) drives the first shifting block (344) to rotate; a first sensor (345) is arranged on the mounting platform (315), and a first sensor sheet (346) is arranged on the first rotating shaft (342); The second rotating drive assembly (35) comprises a second bearing seat (351) arranged on the mounting platform (315), a second rotating shaft (352) is arranged in the second bearing seat (351), one end of the second rotating shaft (352) is drivingly connected to a second motor (353), the other end of the second rotating shaft (352) away from the second motor (353) is provided with a second shifting block (354), and the second motor (353) drives the second shifting block (354) to rotate; a second sensor (355) is arranged on the mounting platform (315), and a second sensor sheet (356) is arranged on the second rotating shaft (352); The column thrust detection assembly (36) comprises a proportional valve (361), and a pushing block (362) is provided at the output end of the proportional valve (361).

6. The vehicle door lock testing device according to claim 1, characterized in that, The appearance detection mechanism (2) comprises an industrial camera and an image processing unit, wherein the industrial camera is used to collect an image of the micro switch spring of the vehicle door lock housing, and the image processing unit is used to analyze and process the collected image to obtain an angle value and a size value of the micro switch spring, and compare the angle value and the size value with a preset standard value to determine whether the micro switch spring is qualified.

7. The on-vehicle door lock testing device according to claim 1, wherein The transfer shaft mechanism (4) comprises a transfer shaft module (41), on which a mounting base (42) is provided for mounting the vehicle door lock housing, and the mounting base (42) is driven to move by the transfer shaft module (41); a positioning sensor (43) is provided in the housing (1), and the positioning sensor (43) is used to detect the position of the mounting base (42) to ensure that the vehicle door lock housing can accurately reach the manual material loading and unloading position, the signal detection position and the camera appearance detection position.

8. A vehicle door lock testing method, using a vehicle door lock testing device according to any one of claims 1-7, characterized in that, The steps include: Manually connect the vehicle door lock housing to the connector, place the vehicle door lock housing on the mounting base (42) of the transfer shaft mechanism (4) as a testing tool, and trigger the test process by pressing the start button; The transfer shaft module (41) of the transfer shaft mechanism (4) drives the mounting base (42) to move toward the signal detection position, and the positioning sensor (43) monitors in real time to ensure that the mounting base (42) and the vehicle door lock housing accurately arrive at the designated position; The upper computer detects the resistance value of the micro switch of the vehicle door lock housing when it is disconnected, and judges the detection result according to the preset standard; if the detection result is unqualified, the vehicle door lock housing is removed from the mounting base (42); if the detection result is qualified, the next step is entered; The positioning drive member (314) of the lifting and positioning assembly (31) drives the positioning guide block (313) to slide along the positioning guide rail (312), so that the installation platform (315) of the lifting and positioning assembly (31) descends. During this process, the buffer (316) plays a buffering and shock-absorbing role to prevent the installation platform (315) from having a hard collision with other components. The first cylinder (321) of the first toggle assembly (32) drives the first sliding block (322) to toggle the full-lock spring micro switch of the vehicle door lock housing; The second cylinder (331) of the second toggle assembly (33) drives the second sliding block (332) to toggle a half-lock micro switch of the vehicle door lock housing; The first motor (343) of the first rotary drive assembly (34) drives the first rotary shaft (342) and the first shifting block (344) thereon to rotate, thereby shifting the child lock micro switch of the vehicle door lock housing; The second motor (353) of the second rotary drive assembly (35) drives the second rotary shaft (352) and the second shifting block (354) thereon to rotate, thereby shifting the central lock micro switch of the vehicle door lock housing; The upper computer detects the resistance value of the micro switch of the vehicle door lock housing when it is turned on, and determines the detection result; if the detection result is unqualified, the vehicle door lock housing is removed from the mounting base (42); if the detection result is qualified, the subsequent process is continued; After the conduction resistance value detection result is determined, the transfer shaft module (41) of the transfer shaft mechanism (4) drives the mounting base (42) to move to the camera appearance detection position; The industrial camera of the appearance detection mechanism (2) takes a picture of the micro switch spring of the vehicle door lock housing, and the image processing unit of the appearance detection mechanism (2) analyzes and processes the image collected by the industrial camera to obtain the angle value and size value of the micro switch spring, and then compares these values ​​with preset standard values ​​to determine whether the appearance of the micro switch spring of the vehicle door lock housing is qualified; The transfer shaft module (41) of the transfer shaft mechanism (4) drives the mounting base (42) to move back to the manual material loading and unloading position. If the camera appearance inspection result is unqualified, the alarm device sends out an audible and visual alarm signal, and the vehicle door lock housing is removed from the mounting base (42); After completing all the above testing processes, this test is over and the next round of vehicle door lock housing testing can be restarted.

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