Stress detection device for automobile lamp

Abstract

The utility model relates to the technical field of automobiles, in particular to a stress detection device for an automobile lamp, which comprises a frame, a detection component is arranged in the frame and comprises a screw rod driving unit clamped in the frame, and two moving blocks are in threaded connection with the outer side of the screw rod driving unit. The outer sides of the two movable blocks are sleeved with the same movable disc, two movable grooves are formed in the right side of the movable disc, and the movable disc repeatedly moves leftwards and drives the mounting base to move leftwards, so that impact detection can be carried out on the to-be-detected vehicle lamp after the mounting base moves rightwards quickly; and the movable disc is pulled back after reaching a critical point, and the movable disc can move leftwards repeatedly and accumulate force, so that the to-be-detected vehicle lamp can be subjected to repeated impact testing, and the impact testing efficiency of the vehicle lamp is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a stress detection device for automobile lamps. Background Art

[0002] Automobiles usually use LED light sources to replace traditional automobile lights, mainly including headlamps, tail lamps, brake lamps, turn signals, etc. Using LED lamps in automobiles can improve the energy efficiency ratio, reduce fuel consumption, enhance driving safety, and has the characteristics of beauty and long service life.

[0003] The stress detection of automobile lamps is an essential link in the lamp design and manufacturing process. The stress test aims to evaluate the mechanical strength of lamp components and determine whether they meet the strength and durability requirements, thereby improving the quality and safety of lamps. The stress detection of lamps usually includes vibration tests, impact tests, and stress analysis;

[0004] In the prior art, since the impact test simulates the impact and collision conditions during vehicle driving to detect whether the lamp can withstand the impact without cracking or falling off, each time the lamp is detected, it is necessary to adjust the moving speed of the lamp by simulating the vehicle speed, resulting in a more cumbersome detection process for the lamp. Summary of the Invention

[0005] The purpose of the utility model is to provide a stress detection device for automobile lamps, which can store energy during the process of the movable disk moving leftward for a certain distance, and can move leftward and store energy repeatedly, so that the lamp to be detected can be subjected to repeated impact tests, greatly improving the impact test efficiency of the lamp, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A stress detection device for automobile lamps, including a frame, a detection component is arranged inside the frame, and the detection component includes a lead screw drive unit clamped inside the frame;

[0007] Two moving blocks are threadedly connected to the outside of the lead screw drive unit, the outside of the two moving blocks is sleeved with the same movable disk, two movable grooves are opened on the right side of the movable disk, the two moving blocks are respectively slidably connected in the two movable grooves, a first tension spring is fixedly connected to the right side of the movable disk, the other end of the first tension spring is fixedly connected to the right side inside the frame, a guide groove is opened on the upper side of the frame, a mounting seat is fixedly connected to the outside of the movable disk, the mounting seat is slidably connected in the guide groove, an impact plate is fixedly connected to the right side of the frame, and the right side of the mounting seat is in pressing contact with the left side of the impact plate after moving, and a locking component is arranged inside the movable disk.

[0008] Preferably, the lead screw driving unit is composed of a driving motor and a lead screw, and the movable disk is sleeved outside the lead screw driving unit.

[0009] Preferably, the locking assembly includes four first pressure springs respectively fixedly connected to the outer sides of the two moving blocks away from each other. The other ends of two adjacent first pressure springs are fixedly connected to the same pressure-receiving block, and the two pressure-receiving blocks are respectively slidably connected in the two movable slots.

[0010] Preferably, two second tension springs are fixedly connected to the outer sides of the two pressure-receiving blocks away from each other, and the other ends of the four second tension springs are respectively fixedly connected to the two sides away from each other inside the two movable slots.

[0011] Preferably, inclined surfaces are formed on the right sides of the two pressure-receiving blocks, through holes are formed on the right side of the movable disk, two pressing blocks are fixedly connected to the right side inside the frame, the two pressing blocks are respectively inserted into the two through holes after moving, and the two pressing blocks respectively pass through the two through holes and are in pressing contact with the inclined surfaces of the two pressure-receiving blocks.

[0012] Preferably, clamping grooves are formed on the left sides of the two moving blocks, first magnetic blocks after moving are inserted into the two clamping grooves, second pressure springs are fixedly connected to the left ends of the two first magnetic blocks, and the other ends of the two second pressure springs are respectively fixedly connected to the left sides inside the two movable slots.

[0013] Preferably, two guide blocks are fixedly connected to the outside of the movable disk, and the movable disk is slidably connected inside the frame through the two guide blocks.

[0014] Preferably, a position adjusting component is arranged inside the frame. The position adjusting component includes an electric push rod fixedly connected to the left side inside the frame. The right end of the electric push rod is fixedly connected to a fixing plate. Two second magnetic blocks are fixedly connected to the right side of the fixing plate, and the two second magnetic blocks are respectively magnetically adsorbed to the two first magnetic blocks after moving.

[0015] Preferably, two pressure sensors are fixedly installed on both sides of the fixing plate. Two first striker pins are fixedly connected to the left side of the movable disk, and the left ends of the two first striker pins are respectively in pressing contact with the right sides of the two pressure sensors on the right side of the fixing plate.

[0016] Preferably, two second striker pins are fixedly connected to the left side inside the frame, and the right ends of the two second striker pins are respectively in pressing contact with the left sides of the two pressure sensors on the left side of the fixing plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. By repeatedly moving the movable disk to the left, the mounting base is driven to move to the left, so that after the mounting base moves quickly to the right, the headlight to be detected can be subjected to impact detection. Since the movable disk stores energy during the process of moving a certain distance to the left and is pulled back after reaching the critical point, and the movable disk can repeatedly move to the left and store energy, the headlight to be detected can be subjected to repeated impact tests, greatly improving the efficiency of the impact test of the headlight;

[0019] 2. By controlling the position of the fixed plate with each movement of the movable disk, the energy storage degree of the movable disk is gradually increased. Since the position of the fixed plate will change every time the movable disk is pulled by the first tension spring, the distance that the movable disk moves to the left next time will increase, resulting in a gradual increase in the impact force of the headlight to be detected on the impact plate, thereby improving the detection accuracy of the impact detection of the headlight to be detected. Description of the Drawings

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the overall structure view of the present invention;

[0022] Figure 2 It is the semi-sectional structure schematic diagram of the present invention;

[0023] Figure 3 It is the semi-sectional structure schematic diagram of the fixed plate of the present invention;

[0024] Figure 4 It is the structure schematic diagram of the movable disk of the present invention;

[0025] Figure 5 It is the semi-sectional structure schematic diagram of the movable disk of the present invention.

[0026] Explanation of the Reference Numerals:

[0027] 1. Frame; 2. Detection component; 21. Lead screw drive unit; 22. Moving block; 23. Movable disk; 24. Movable slot; 25. First tension spring; 26. Guide slot; 27. Mounting seat; 28. Impact plate; 29. Locking component; 291. First compression spring; 292. Compressed block; 293. Second tension spring; 294. Through hole; 295. Extrusion block; 296. Card slot; 297. First magnet; 298. Second compression spring; 3. Position adjustment component; 31. Electric push rod; 32. Fixed plate; 33. Pressure sensor; 34. First firing pin; 35. Second firing pin; 36. Second magnet. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides a technical solution:

[0030] Please refer to Figures 1 to 5 , a stress detection device for automobile headlights, including a frame 1, and a detection component 2 is arranged inside the frame 1. The detection component 2 includes a lead screw drive unit 21 clamped inside the frame 1;

[0031] Two moving blocks 22 are threadedly connected to the outside of the lead screw drive unit 21. The outside of the two moving blocks 22 is sleeved with the same movable disk 23. Two movable slots 24 are opened on the right side of the movable disk 23. The two moving blocks 22 are respectively slidably connected in the two movable slots 24. A first tension spring 25 is fixedly connected to the right side of the movable disk 23. The other end of the first tension spring 25 is fixedly connected to the right side inside the frame 1. A guide slot 26 is opened on the upper side of the frame 1. A mounting seat 27 is fixedly connected to the outside of the movable disk 23. The mounting seat 27 is slidably connected in the guide slot 26. An impact plate 28 is fixedly connected to the right side of the frame 1. The right side of the mounting seat 27 is in pressing contact with the left side of the impact plate 28 after moving. A locking component 29 is arranged inside the movable disk 23.

[0032] The lead screw drive unit 21 is composed of a drive motor and a lead screw. The movable disk 23 is sleeved on the outside of the lead screw drive unit 21.

[0033] The locking component 29 includes four first compression springs 291 respectively fixedly connected to the opposite sides of the two moving blocks 22. The other ends of the adjacent two first compression springs 291 are fixedly connected with the same compressed block 292. The two compressed blocks 292 are respectively slidably connected in the two movable slots 24.

[0034] On both sides of the two pressure-receiving blocks 292 away from each other, two second tension springs 293 are fixedly connected respectively, and the far ends of the four second tension springs 293 are fixedly connected to the two sides away from each other inside the two movable grooves 24 respectively.

[0035] On the right sides of the two pressure-receiving blocks 292, inclined surfaces are provided. On the right side of the movable disk 23, two through holes 294 are provided. On the right side inside the frame 1, two extrusion blocks 295 are fixedly connected. The two extrusion blocks 295 are respectively inserted into the two through holes 294 after movement, and the two extrusion blocks 295 respectively pass through the two through holes 294 and are in extrusion contact with the inclined surfaces of the two pressure-receiving blocks 292.

[0036] On the left sides of the two moving blocks 22, clamping grooves 296 are provided. In the two clamping grooves 296, the first magnetic blocks 297 after movement are inserted. At the left ends of the two first magnetic blocks 297, second pressure springs 298 are fixedly connected respectively, and the other ends of the two second pressure springs 298 are fixedly connected to the left sides inside the two movable grooves 24 respectively.

[0037] On the outer side of the movable disk 23, two guide blocks are fixedly connected, and the movable disk 23 is slidably connected inside the frame 1 through the two guide blocks.

[0038] A position adjusting member 3 is provided inside the frame 1.

[0039] By adopting the above technical solutions, first, start the motor to drive the lead screw to rotate. The two moving blocks 22 inside the two movable grooves 24 on the side of the movable disk 23 are in thread fit with the lead screw. When the lead screw rotates, the two moving blocks 22 will drive the lead screw and the movable disk 23 to move leftward inside the frame 1. When the movable disk 23 contacts the position adjusting member 3, the two first magnetic blocks 297 inside the movable grooves 24 are attracted by the position adjusting member 3. While squeezing the second pressure springs 298, they will also disengage from the clamping grooves 296 on the left sides of the moving blocks 22. At this time, after the two moving blocks 22 lose the restriction of the first magnetic blocks 297, the second tension springs 293 inside the movable grooves 24 pull the pressure-receiving blocks 292, and the pressure-receiving blocks 292 pull the moving blocks 22 through the first pressure springs 291, so that the two moving blocks 22 will disengage from the lead screw. After the two moving blocks 22 lose the restriction from the external thread of the lead screw, the first tension spring 25 inside the frame 1 will pull the movable disk 23, so that the movable disk 23 quickly moves to the right side inside the frame 1;

[0040] Meanwhile, the pulled movable disk 23 will also drive the mounting base 27 to move inside the guide groove 26 above the frame 1, so that the headlight to be detected installed inside the mounting base 27 will quickly hit the impact plate 28. Finally, the state of the headlight to be detected after impact is observed. When the movable disk 23 moves to the right side inside the frame 1, the two pressing blocks 295 on the right side inside the frame 1 will enter the inside of the movable disk 23 through the through holes 294 and contact the inclined surface of the pressed block 292. Finally, the pressed block is squeezed, so that after the pressing block 295 loses the pulling force of the second tension spring 293, the first pressure spring 291 will drive the moving block 22 close to the lead screw, so that the moving block 22 fits with the lead screw again. And the first magnet 297 will also enter the card slot 296 again through the second pressure spring 298 and lock the moving block 22. Therefore, the lead screw continues to rotate, so that the lead screw will continue to drive the two moving blocks 22 to move to the left. Since the movable disk 23 will store energy during the process of moving to the left for a certain distance and pull the movable disk 23 back after reaching the critical point, and at the same time the movable disk 23 can move to the left repeatedly and store energy, the headlight to be detected can be subjected to repeated impact tests, greatly improving the impact test efficiency of the headlight.

[0041] Specifically, as Figure 4 shown, the position adjusting component 3 includes an electric push rod 31 fixedly connected to the left side inside the frame 1. The right end of the electric push rod 31 is fixedly connected with a fixing plate 32. Two second magnets 36 are fixedly connected to the right side of the fixing plate 32. The two second magnets 36 are magnetically adsorbed to the two moved first magnets 297 respectively.

[0042] Two pressure sensors 33 are fixedly installed on both sides of the fixing plate 32. Two first striker pins 34 are fixedly connected to the left side of the movable disk 23. The left ends of the two first striker pins 34 are respectively in pressing contact with the right sides of the two pressure sensors 33 on the right side of the fixing plate 32.

[0043] Two second striker pins 35 are fixedly connected to the left side inside the frame 1. The right ends of the two second striker pins 35 are respectively in pressing contact with the left sides of the two pressure sensors 33 on the left side of the fixing plate 32.

[0044] By adopting the above technical solution, first, after the movable disk 23 moves to the left, it will contact the second magnet 36 on the surface of the fixed plate 32 at the right end of the electric push rod 31. At this time, the second magnet 36 will attract the first magnet 297 inside the movable slot 24, causing the first magnet 297 to disengage from the card slot 296. As a result, the movable disk 23 is pulled by the first tension spring 25. While the movable disk 23 approaches the fixed plate 32, the two first striker pins 34 on the left side of the movable disk 23 will contact the two pressure sensors 33 on the right side of the fixed plate 32, causing the electric push rod 31 to pull the fixed plate 32 after receiving an external controller, driving the fixed plate 32 to change its position. After the lead screw drives the movable disk 23 to move again, the movable disk 23 will move to the position corresponding to the fixed plate 32 at this time, increasing the pulling amplitude of the movable disk 23 on the first tension spring 25, resulting in an increase in the kinetic energy generated when the movable disk 23 is pulled back by the first tension spring 25, and the impact force of the headlight to be detected on the impact plate 28 will also increase. When the fixed plate 32 moves to the leftmost side inside the frame 1, the two pressure sensors 33 on the left side of the fixed plate 32 will contact the two second striker pins 35, causing the electric push rod 31 to push the fixed plate 32 to the right after receiving an external controller until the extension end point of the electric push rod 31. Since the position of the fixed plate 32 will change every time the movable disk 23 is pulled by the first tension spring 25, the distance that the movable disk 23 moves to the left next time will increase, resulting in a gradual increase in the impact force of the headlight to be detected on the impact plate 28, thereby improving the detection accuracy of the impact detection of the headlight to be detected.

[0045] Working principle: First, the lead screw drive unit 21 will drive the two moving blocks 22 to move leftward. After contacting the second magnet 36 on the surface of the fixed plate 32 at the right end of the electric push rod 31, it will attract the first magnet 297 inside the movable slot 24, causing the first magnet 297 to disengage from the card slot 296. The second tension spring 293 inside the movable slot 24 will pull the pressure block 292, causing the two moving blocks 22 to disengage from the lead screw. The first tension spring 25 inside the frame 1 will pull the movable disk 23, causing the movable disk 23 to quickly move to the right side inside the frame 1. The pulled movable disk 23 will also drive the mounting seat 27 to move inside the guide slot 26 above the frame 1, causing the headlights to be detected installed inside the mounting seat 27 to quickly hit the impact plate 28. When the movable disk 23 moves to the right side inside the frame 1, the extrusion block 295 will enter the movable disk 23 through the through hole 294 and extrude the pressure-receiving part. The first pressure spring 291 will drive the moving block 22 to approach the lead screw, causing the moving block 22 to fit with the lead screw again. The first magnet 297 will also enter the card slot 296 again through the second pressure spring 298 and lock the moving block 22. When the movable disk 23 approaches the fixed plate 32, the two first striker pins 34 on the left side of the movable disk 23 will contact the two pressure sensors 33 on the right side of the fixed plate 32, causing the electric push rod 31 to drive the fixed plate 32 to change its position. After the lead screw drives the movable disk 23 to move again, at this time, the movable disk 23 will move to the position corresponding to the fixed plate 32. When the fixed plate 32 moves to the leftmost side inside the frame 1, the two pressure sensors 33 on the left side of the fixed plate 32 will contact the two second striker pins 35, causing the electric push rod 31 to push the fixed plate 32 to the right after receiving an external controller.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stress detection device for a vehicle lamp, comprising a frame (1), characterized in that: A detection component (2) is provided inside the frame (1), and the detection component (2) comprises a screw drive unit (21) clamped inside the frame (1); The outer side of the screw drive unit (21) is threadedly connected to two moving blocks (22), and the outer sides of the two moving blocks (22) are sleeved with the same movable disk (23). The right side of the movable disk (23) is provided with two movable grooves (24), and the two moving blocks (22) are slidably connected in the two movable grooves (24) respectively. The right side of the movable disk (23) is fixedly connected to a first tension spring (25), and the other end of the first tension spring (25) is fixedly connected to the right side of the inside of the frame (1). A guide groove (26) is provided on the upper side of the frame (1). The outer side of the movable disk (23) is fixedly connected to a mounting seat (27), and the mounting seat (27) is slidably connected in the guide groove (26). The right side of the frame (1) is fixedly connected to an impact plate (28), and the right side of the mounting seat (27) is pressed and contacted with the left side of the impact plate (28) after moving. A locking component (29) is provided inside the movable disk (23).

2. A stress detection device for automobile lamps according to claim 1, characterized in that: The screw drive unit (21) is composed of a drive motor and a screw, and the movable disk (23) is sleeved on the outside of the screw drive unit (21).

3. A stress detection device for automobile lamps according to claim 1, characterized in that: The locking assembly (29) comprises four first pressure springs (291) respectively fixedly connected to the sides away from the two movable blocks (22); the other ends of two adjacent first pressure springs (291) are fixedly connected to the same pressure block (292); and the two pressure blocks (292) are respectively slidably connected in the two movable grooves (24).

4. A stress detection device for automobile lamps according to claim 3, characterized in that: Two second tension springs (293) are fixedly connected to the distant sides of the two pressure blocks (292), and the distant ends of the four second tension springs (293) are respectively fixedly connected to the distant sides of the two movable grooves (24).

5. A stress detection device for automobile lamps according to claim 4, characterized in that: The right sides of the two pressure blocks (292) are each provided with an inclined surface, the right side of the movable plate (23) is provided with two through holes (294), and the inner right side of the frame (1) is fixedly connected with two extrusion blocks (295), the two extrusion blocks (295) are respectively inserted into the two moved through holes (294), and the two extrusion blocks (295) respectively pass through the two through holes (294) to be in extrusion contact with the inclined surfaces of the two pressure blocks (292).

6. A stress detection device for automobile lamps according to claim 1, characterized in that: A slot (296) is provided on the left side of the two movable blocks (22), and a first magnetic block (297) after movement is inserted into the two slots (296). The left ends of the two first magnetic blocks (297) are fixedly connected to a second pressure spring (298), and the other ends of the two second pressure springs (298) are respectively fixedly connected to the inner left sides of the two movable slots (24).

7. A stress detection device for automobile lamps according to claim 1, characterized in that: Two guide blocks are fixedly connected to the outer side of the movable disk (23), and the movable disk (23) is slidably connected to the inside of the frame (1) via the two guide blocks.

8. The stress detection device for automobile lamps according to claim 1, characterized in that: A position adjustment component (3) is provided inside the frame (1), and the position adjustment component (3) comprises an electric push rod (31) fixedly connected to the left side inside the frame (1), a fixing plate (32) being fixedly connected to the right end of the electric push rod (31), and two second magnetic blocks (36) being fixedly connected to the right side of the fixing plate (32), and the two second magnetic blocks (36) are magnetically attracted to the two moved first magnetic blocks (297) respectively.

9. A stress detection device for automobile lamps according to claim 8, characterized in that: Two pressure sensors (33) are fixedly mounted on both sides of the fixed plate (32), and two first strikers (34) are fixedly connected to the left side of the movable plate (23), and the left ends of the two first strikers (34) are respectively in compression contact with the right sides of the two pressure sensors (33) on the right side of the fixed plate (32).

10. A stress detection device for automobile lamps according to claim 9, characterized in that: Two second strikers (35) are fixedly connected to the left side of the interior of the frame (1), and the right ends of the two second strikers (35) are respectively pressed and contacted with the left sides of two pressure sensors (33) on the left side of the fixing plate (32).

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