Detection equipment for front cabin cover lock
By using the load-bearing and unlocking components of automated testing equipment to detect the locking force of the latch, the problems of low testing efficiency and accuracy caused by manual operation are solved, achieving efficient and accurate front hatch lock testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YANGMING INTERCONNECTED INTELLIGENT SYST CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the detection of the hood lock relies on manual operation, which results in low detection efficiency, long detection time and susceptibility to human interference, making it difficult to meet the high-efficiency and precise quality control requirements of modern automobile production lines.
The system employs automated testing equipment, including a load-bearing component, an unlocking component, and a testing component. The unlocking component moves the limit arm and works in conjunction with the testing component to detect the locking force of the bolt, achieving accurate testing without manual operation.
It improves detection accuracy and efficiency, ensures the uniformity and accuracy of detection results, and meets the quality control requirements of modern automobile production lines.
Smart Images
Figure CN224262791U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automobile manufacturing, and in particular to a testing device for a hood lock. Background Technology
[0002] In the automotive manufacturing industry, the hood lock is a key component for ensuring driving safety and protecting the engine compartment; its reliability directly affects the overall safety of the vehicle. Therefore, after the hood lock is manufactured, its locking performance needs to be tested.
[0003] Currently, the performance testing of hood locks in the industry still largely relies on manual operation. This testing method not only suffers from low testing efficiency and long testing time, but is also easily affected by human factors, leading to inconsistent testing standards and missed detection of key performance parameters. This makes it difficult to meet the high-efficiency and precise quality control requirements of modern automobile production lines. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this application provides a detection device for front hatch locks that can improve detection accuracy and efficiency.
[0005] The testing device provided in this application adopts the following technical solution:
[0006] A testing device for a hood lock, the hood lock including a main board, a latch rotatably connected to the main board, and a limiting arm for locking the latch, the testing device including a first testing mechanism, the first testing mechanism including a supporting component for supporting the main board, an unlocking component for moving the limiting arm, and a testing component for detecting the locking force of the latch.
[0007] By adopting the above technical solution, the unlocking component and the detection component can cooperate with each other to detect the locking force of the bolt without manual operation, which effectively improves the detection accuracy and efficiency.
[0008] In one specific implementation, the latch has a lock groove, and the detection component includes a detection shaft movable along a direction close to or away from the latch, a first drive module for driving the detection shaft to move, and a first sensing module disposed on the detection shaft. The detection shaft can be embedded in or separated from the lock groove during its movement.
[0009] By adopting the above technical solution, when the detection shaft is embedded in the lock groove, the lock tongue will apply a locking force to the detection shaft. The first sensing module can directly detect the locking force applied by the lock tongue, which effectively improves the detection accuracy.
[0010] In one specific implementation, the detection component further includes a first slide block connected to the output end of the first drive module, the detection shaft being disposed on the first slide block, and the first sensing module being mounted on the side of the first slide block.
[0011] By adopting the above technical solution, the movement stability of the detection axis and the detection stability of the first sensing module are effectively improved, thereby further improving the detection accuracy.
[0012] In one specific implementation, the detection component further includes a stress relief module disposed between the first slide and the first drive module. The stress relief module includes a stress relief plate, a stress relief groove formed on the stress relief plate, and a floating block slidably disposed within the stress relief groove along the length direction of the stress relief groove. The length direction of the stress relief groove is the same as the movement direction of the detection shaft. The stress relief plate is connected to the first slide, and the floating block is connected to the output end of the first drive module.
[0013] By adopting the above technical solution, after the detection shaft moves into place, the unloading module can unload the driving force of the first drive module on the detection shaft with the cooperation of the unloading groove and the floating block, so that the detection shaft can only bear the locking force of the locking tongue during the detection process of the first sensing module, and prevent the driving force of the first drive module from affecting the detection results.
[0014] In one specific implementation scheme, the support assembly includes a support base and a support plate disposed on top of the support base. The detection assembly is housed within the support base. A first clearance groove is provided on the support plate, and the detection shaft is movably inserted through the first clearance groove.
[0015] By adopting the above technical solution, the first clearance groove can make way for the detection shaft, preventing the bearing plate from interfering with the movement of the detection shaft.
[0016] In one specific implementation, the testing device further includes a clamping assembly, which includes a clamping plate that can be raised and lowered above the support plate, and a second drive module for driving the clamping plate to rise and fall.
[0017] By adopting the above technical solution, the clamping plate can be clamped onto the front hatch lock to prevent the front hatch lock from moving during the inspection process.
[0018] In one specific implementation, the unlocking component includes a second slide block movably disposed along a direction close to or away from the limiting arm, a third drive module for driving the second slide block to move, a lever movably disposed on the second slide block, a fourth drive module for driving the lever to move, and a second sensing module disposed on the lever, wherein the movement direction of the lever is set at an angle to the movement direction of the second slide block.
[0019] By adopting the above technical solution, the lever can move the limiting arm and unlock the lock tongue during its movement, so that the detection shaft can smoothly enter the lock groove.
[0020] In one specific implementation, the direction of movement of the lever is perpendicular to the direction of movement of the second slide.
[0021] By adopting the above technical solution, the direction of the lever's movement can be matched with the rotation direction of the limit arm, effectively improving the lever's movement effect on the limit arm.
[0022] In one specific implementation, the front hatch lock is carried on a vehicle, which is provided with a power connector. The first detection mechanism further includes a power connector assembly, which includes a power connector terminal movable along a direction close to or away from the power connector, and a fifth drive module for driving the power connector terminal to move. The power connector terminal is able to properly engage with the power connector terminal during its movement.
[0023] By adopting the above technical solution, the power terminal can power on the front hatch lock during its movement to activate the front hatch lock's operating condition, enabling the first detection mechanism to detect the front hatch lock in operating condition, effectively improving the detection accuracy.
[0024] In one specific implementation scheme, the testing equipment further includes a base, on which are provided a conveying mechanism for conveying the front hatch lock, a transfer mechanism for moving the front hatch lock, and a second testing mechanism for visually inspecting the front hatch lock. There are multiple first testing mechanisms, which are respectively arranged on both sides of the conveying mechanism.
[0025] By adopting the above technical solution, the transfer mechanism and multiple first inspection mechanisms can cooperate with each other to simultaneously inspect multiple front hatch locks transported on the conveying mechanism, effectively improving inspection efficiency; at the same time, the second inspection mechanism can inspect the appearance of the front hatch locks, thereby further improving the inspection quality.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] The unlocking and detection components work together to detect the locking force of the bolt without manual operation, effectively improving detection accuracy and efficiency. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of the detection device according to an embodiment of this application.
[0029] Figure 2 This is a schematic diagram of the structure of the first testing mechanism in an embodiment of this application. Figure 1 .
[0030] Figure 3 This is a front view of the first testing institution in an embodiment of this application.
[0031] Figure 4 yes Figure 3 A schematic diagram of section AA in the diagram.
[0032] Figure 5 This is a schematic diagram of the structure of the first testing mechanism in an embodiment of this application. Figure 2 .
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. First testing mechanism; 11. Bearing component; 111. Bearing seat; 112. Bearing plate; 113. First clearance groove;
[0035] 12. Unlocking component; 121. Second slide; 122. Third drive module; 123. Lever; 124. Fourth drive module; 125. Second sensor module;
[0036] 13. Detection component; 131. Detection shaft; 132. First drive module; 133. First sensing module; 134. First slide; 135. Unloading module; 1351. Unloading plate; 1352. Unloading groove; 1353. Floating block;
[0037] 14. Crimping assembly; 141. Crimping plate; 142. Second drive module; 143. Crimping frame;
[0038] 15. Power connection assembly; 151. Power connection terminal; 152. Fifth drive module; 153. Power connection frame;
[0039] 2. Base; 3. Conveying mechanism; 4. Transfer mechanism; 5. Second inspection mechanism;
[0040] 100. Front hatch lock; 1001. Main board; 1002. Lock tongue; 1003. Lock groove; 1004. Limit arm; 1005. First torsion spring; 1006. Second torsion spring; 101. Vehicle; 1011. Electrical connector. Detailed Implementation
[0041] The present application will be further described in detail below with reference to the accompanying drawings.
[0042] See Figure 1-5 As shown, a testing device for a hood lock is illustrated. The hood lock 100 includes a main board 1001, a latch 1002 rotatably connected to the main board 1001, a lock groove 1003 formed in the latch 1002, and a limiting arm 1004 for locking the latch 1002. The main board 1001 is also provided with a first torsion spring 1005 sleeved on the latch 1002 and a second torsion spring 1006 sleeved on the limiting arm 1004. In the initial state, the limiting arm 1004 presses against the protrusion on the side of the latch 1002, at which time the latch 1002 is in a locked state; after the limiting arm 1004 is moved, the protrusion separates from the limiting arm 1004, the latch 1002 loses the pressure and rotates to unlock under the action of the first torsion spring 1005; when the limiting arm 1004 is stopped, the limiting arm 1004 presses the latch 1002 again under the action of the second torsion spring 1006 and locks the latch 1002.
[0043] Combination Figure 1 As shown, the testing equipment includes a base 2, on which are provided a conveying mechanism 3 for conveying the front hatch lock 100, a transfer mechanism 4 for transferring the front hatch lock 100, a first testing mechanism 1 for testing the locking performance of the front hatch lock 100, and a second testing mechanism 5 for performing appearance inspection on the front hatch lock 100.
[0044] The conveying mechanism 3 is a belt conveyor as in the prior art, which is located in the middle of the base 2. The front hatch lock 100 is mounted on the carrier 101, which is supported by the belt conveyor. There are four first detection mechanisms 1, three of which are located on one side of the conveying mechanism 3 and one of which is located on the other side of the conveying mechanism 3. The transfer mechanism 4 is a robot as in the prior art, which is located on one side of the conveying mechanism 3 and is used to transfer the front hatch lock 100 on the conveying mechanism 3 to the four first detection mechanisms 1 respectively, so as to complete the synchronous detection of the four front hatch locks. The second detection mechanism 5 is a camera located at the end of the conveying direction of the conveying mechanism 3. The camera is used to take pictures of the front hatch lock 100 after the performance test is completed and output to the outside, so as to inspect the appearance of the front hatch lock 100.
[0045] In this embodiment, combined with Figure 2-5As shown, the first detection mechanism 1 includes a support component 11 for supporting the mainboard 1001, an unlocking component 12 for actuating the limiting arm 1004, and a detection component 13 for detecting the locking force of the latch 1002. During detection, the transfer mechanism 4 transfers the hood lock 100 to the detection component 13, the unlocking component 12 unlocks the latch 1002, and the detection component 13 detects the locking force of the latch 1002. The unlocking component 12 and the detection component 13 can cooperate with each other without manual operation, effectively improving detection accuracy and efficiency.
[0046] The support assembly 11 includes a support base 111, a support plate 112 horizontally disposed on the upper side of the support base 111, and a front hatch lock 100 mounted on the support plate 112. The detection assembly 13 is disposed in the support base 111 and includes a detection shaft 131 movably disposed along the length of the support plate 112, a first drive module 132 for driving the detection shaft 131, and a first sensing module 133 disposed on the detection shaft 131. The first drive module 132 is a motor lead screw structure, and the first sensing module 133 is a pressure sensor.
[0047] Combination Figure 4 As shown, during the detection, the locking component 12 moves the limiting arm 1004 and unlocks the locking tongue 1002. Then, the locking tongue 1002 rotates under the action of the first torsion spring 1005. During the rotation of the locking tongue 1002, the locking groove 1003 faces the detection shaft 131. The first drive module 132 drives the detection shaft 131 to approach and embed into the locking groove 1003. Then, the unlocking component 12 moves away from the limiting arm 1004, the locking tongue 1002 locks again, and locks the detection shaft 131 into the locking groove 1003. At this time, the first sensing module 133 can directly detect the locking force of the locking tongue 1002, with high detection accuracy.
[0048] In this embodiment, combined with Figure 2 As shown, the detection component 13 also includes a first slide 134, which is connected to the output end of the first drive module 132. The detection shaft 131 is disposed on the first slide 134, and the first sensing module 133 is mounted on the side of the first slide 134.
[0049] A force-relieving module 135 is also provided between the first slide block 134 and the first drive module 132. The force-relieving module 135 includes a horizontally arranged force-relieving plate 1351, a force-relieving groove 1352 opened on the force-relieving plate 1351, and a floating block 1353 that is slidably inserted into the force-relieving groove 1352 along the length direction of the force-relieving groove 1352. The length direction of the force-relieving groove 1352 is the same as the movement direction of the detection shaft 131. The force-relieving plate 1351 is connected to the first slide block 134, and the floating block 1353 is connected to the output end of the first drive module 132.
[0050] When the first drive module 132 is running in the forward direction, it can drive the floating block 1353 to move towards the lock tongue 1002. The floating block 1353 moves in the unloading groove 1352 and reaches the front end of the unloading groove 1352. Then the floating block 1353 pushes the unloading plate 1351 to move towards the lock tongue 1002. The unloading plate 1351 drives the first slide block 134 and the detection shaft 131 to move towards the lock tongue 1002 and embed into the lock groove 1003.
[0051] Subsequently, the first drive module 132 operates in reverse, driving the floating block 1353 to move away from the latch 1002. At this time, the floating block 1353 moves within the unloading groove 1352, and the unloading plate 1351 does not move accordingly. The detection shaft 131 remains contained within the lock groove 1003. After the floating block 1353 moves away from the latch 1002, the first drive module 132 no longer applies driving force to the detection shaft 131, so that the detection shaft 131 only bears the locking force of the latch 1002. At this time, the pressure measured by the first sensing module 133 is only the locking force of the latch 1002, resulting in high detection accuracy and preventing the driving force of the first drive module 132 from affecting the detection results.
[0052] In this embodiment, a first clearance groove 113 is provided on the support plate 112, extending along the length of the support plate 112, and the detection shaft 131 is movably inserted into the first clearance groove 113. The first clearance groove 113 can make way for the detection shaft 131, preventing the support plate 112 from interfering with the movement of the detection shaft 131. A second clearance groove is provided on the carrier 101, and the projection of the second clearance groove on the support plate 112 coincides with the first clearance groove 113; both together make way for the detection shaft 131.
[0053] In this embodiment, the testing equipment further includes a clamping assembly 14, which includes a clamping frame 143, a clamping plate 141 that is liftable and detachable on the clamping frame 143, and a second drive module 142 for driving the clamping plate 141 to move up and down. The clamping plate 141 is located above the support plate 112, and the second drive module 142 is a cylinder. When the hood lock 100 is placed on the support plate 112, the clamping plate 141 can descend and clamp onto the hood lock 100, preventing the hood lock 100 from moving during the testing process.
[0054] In this embodiment, combined with Figure 4-5As shown, the unlocking component 12 is located at one end of the support base 111 along its length. It includes a second slide 121 movably disposed along the length of the support base 111, a third drive module 122 for driving the second slide 121, a lever 123 movably disposed on the second slide 121, a fourth drive module 124 for driving the lever 123, and a second sensing module 125 disposed on the lever 123. The direction of movement of the lever 123 is perpendicular to the direction of movement of the second slide 121. The third drive module 122 and the fourth drive module 124 are both motor lead screw structures, and the second sensing module 125 is a pressure sensor. After the front hatch lock 100 is placed on the support plate 112, the lever 123 can approach the limiting arm 1004 along the length direction of the base 2 and move the limiting arm 1004 along the width direction of the support plate 112, thereby unlocking the latch 1002 and allowing the detection shaft 131 to smoothly enter the lock groove 1003; while the second sensing module 125 is used to detect the pushing force of the lever 123 on the limiting arm 1004, so as to test whether the pushing force required for the rotation of the limiting arm 1004 meets the requirements.
[0055] In this embodiment, a power connector 1011 is provided on the carrier 101, and the power connector 1011 is electrically connected to the front hatch lock 100. The first detection mechanism 1 also includes a power connector assembly 15 located at one end of the bearing 111 along its length. The power connector assembly 15 includes a power connector frame 153, a power connector terminal 151 movably disposed along the length of the bearing plate 112, and a fifth drive module 152 for driving the power connector terminal 151 to move. The power connector terminal 151 can be properly aligned with the power connector 1011 during its movement stroke. Both the power connector terminal 151 and the power connector 1011 are existing technologies, and their alignment enables the power supply to the front hatch lock 100. The fifth drive module 152 is a cylinder. The power terminal 151 can connect with the power base 1011 and power the front hatch lock 100 during its movement to activate the operating condition of the front hatch lock 100, so that the first detection mechanism 1 can detect the front hatch lock 100 in the operating condition, effectively improving the detection accuracy.
[0056] The implementation principle of a detection device according to an embodiment of this application is as follows:
[0057] The conveying mechanism 3 conveys the vehicle 101 loaded with the front hatch lock 100 forward in sequence along its conveying direction, and the transfer mechanism 4 transfers the four vehicles 101 that have been conveyed to the four first detection mechanisms 1 respectively.
[0058] The support plate 112 supports the carrier 101. The second drive module 142 drives the clamping plate 141 to descend and clamp onto the front hatch lock 100. Then the fifth drive module 152 drives the power terminal 151 to move towards the power base 1011 and connects with the power base 1011 in the correct position.
[0059] The third drive module 122 drives the lever 123 to move toward the limit arm 1004. After it moves into place, the fourth drive module 124 drives the lever 123 to move the limit arm 1004 laterally and unlock the latch 1002. After the latch 1002 is unlocked, it rotates under the action of the first torsion spring 1005 and makes the lock groove 1003 face the detection shaft 131.
[0060] The first drive module 132 drives the detection shaft 131 to move toward the lock tongue 1002 and embed it into the lock groove 1003;
[0061] The third drive module 122 and the fourth drive module 124 drive the lever 123 to disengage from the limiting arm 1004. The limiting arm 1004 rotates under the action of the second torsion spring 1006 and presses the locking tongue 1002. The locking tongue 1002 rotates in the opposite direction and locks the detection shaft 131 into the locking groove 1003.
[0062] The first drive module 132 drives the floating block 1353 to move away from the latch 1002. The first sensing module 133 detects the pressure on the detection shaft 131 at this time and outputs the detection result. This pressure is the locking force of the latch 1002.
[0063] After the inspection is completed, the transfer mechanism 4 sends the four vehicles 101 back to the conveying mechanism 3. The conveying mechanism 3 continues to convey the four vehicles 101 forward. When passing under the second inspection mechanism 5, the second inspection mechanism 5 takes pictures of the front hatch locks 100 on the four vehicles 101 and outputs the appearance inspection results. Then the conveying mechanism 3 outputs the four vehicles 101 outward.
[0064] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A testing device for a hood lock, the hood lock (100) comprising a main board (1001), a latch (1002) rotatably connected to the main board (1001), and a limiting arm (1004) for locking the latch (1002), characterized in that: The testing equipment includes a first testing mechanism (1), which includes a support component (11) for supporting the motherboard (1001), an unlocking component (12) for moving the limiting arm (1004), and a testing component (13) for detecting the locking force of the latch (1002).
2. The detection device for a front hatch lock according to claim 1, characterized in that: The latch (1002) has a lock groove (1003), and the detection component (13) includes a detection shaft (131) movably disposed along a direction close to or away from the latch (1002), a first drive module (132) for driving the detection shaft (131) to move, and a first sensing module (133) disposed on the detection shaft (131). The detection shaft (131) can be embedded in the lock groove (1003) or separated from the lock groove (1003) during its movement stroke.
3. The detection device for a front hatch lock according to claim 2, characterized in that: The detection component (13) further includes a first slide (134), which is connected to the output end of the first drive module (132). The detection shaft (131) is disposed on the first slide (134), and the first sensing module (133) is mounted on the side of the first slide (134).
4. The detection device for a front hatch lock according to claim 3, characterized in that: The detection component (13) further includes a stress relief module (135) disposed between the first slide (134) and the first drive module (132). The stress relief module (135) includes a stress relief plate (1351), a stress relief groove (1352) formed on the stress relief plate (1351), and a floating block (1353) slidably inserted in the stress relief groove (1352) along the length direction of the stress relief groove (1352). The length direction of the stress relief groove (1352) is the same as the moving direction of the detection shaft (131). The stress relief plate (1351) is connected to the first slide (134), and the floating block (1353) is connected to the output end of the first drive module (132).
5. The detection device for a front hatch lock according to claim 2, characterized in that: The bearing assembly (11) includes a bearing seat (111) and a bearing plate (112) disposed on the top of the bearing seat (111). The detection assembly (13) is housed in the bearing seat (111). A first clearance groove (113) is provided on the bearing plate (112). The detection shaft (131) is movably inserted into the first clearance groove (113).
6. The detection device for a front hatch lock according to claim 5, characterized in that: The testing equipment also includes a clamping assembly (14), which includes a clamping plate (141) that can be raised and lowered and is located above the support plate (112), and a second drive module (142) for driving the clamping plate (141) to rise and fall.
7. A testing device for a front hatch lock according to any one of claims 1-6, characterized in that: The unlocking assembly (12) includes a second slide (121) movably disposed along a direction close to or away from the limiting arm (1004), a third drive module (122) for driving the second slide (121) to move, a lever (123) movably disposed on the second slide (121), a fourth drive module (124) for driving the lever (123) to move, and a second sensing module (125) disposed on the lever (123). The moving direction of the lever (123) is set at an angle to the moving direction of the second slide (121).
8. The detection device for a front hatch lock according to claim 7, characterized in that: The direction of movement of the lever (123) is perpendicular to the direction of movement of the second slide (121).
9. A testing device for a front hatch lock according to any one of claims 1-6, characterized in that: The front hatch lock (100) is carried on a carrier (101), and the carrier (101) is provided with a power connector (1011). The first detection mechanism (1) further includes a power connector assembly (15), which includes a power connector terminal (151) movably disposed along the direction of approaching or away from the power connector terminal (1011) and a fifth drive module (152) for driving the power connector terminal (151) to move. The power connector terminal (151) can be properly aligned with the power connector terminal (1011) during its movement.
10. A detection device for a front hatch lock according to any one of claims 1-6, characterized in that: The testing equipment also includes a base (2), on which a conveying mechanism (3) for conveying the front hatch lock (100), a transfer mechanism (4) for transferring the front hatch lock (100), and a second testing mechanism (5) for visual inspection of the front hatch lock (100) are provided. There are multiple first testing mechanisms (1), and the multiple first testing mechanisms (1) are respectively arranged on both sides of the conveying mechanism (3).