A fully automatic repeated drop tester

Abstract

The utility model discloses a full -automatic repeated drop test machine, and lifting and falling device includes drop slide seat, object table, push material subassembly and push material drive assembly, and drop slide seat slides up and down and is installed in the frame, and object table sets up in drop slide seat, and push material subassembly is along the upper portion of object table of front -back direction and slides and is installed, and push material drive assembly is transmission connection with push material subassembly, collection device is provided with collection groove, and the rear side of collection groove is provided with material return window, and the inside collection groove is provided with material return push plate and slides along the front -back direction, and the lower part of material return push plate is with the groove bottom of collection groove and is in light abutment, and material return push plate transmission connection has material return drive assembly. After completing once drop test, lifting and falling device moves downwards until object table and the groove bottom of collection groove are aligned, and material return push plate moves backwards until pushes back the object to be measured to object table, and this circulates reciprocating test, and need not manual participation in the test process, realizes full -automatic repeated drop test, improves the degree of automation and test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drop testing machine technology, and in particular to a fully automatic repeated drop testing machine. Background Technology

[0002] Products, especially electronic products, are often subject to accidental drops during use. Drops can easily damage internal electronic components, causing malfunctions and rendering the product unusable. However, occasional drops are normal. To prevent products from breaking instantly from a single fall, manufacturers incorporate drop-resistant designs to withstand common everyday drops. Therefore, before mass production, products undergo repeated drop tests using a drop testing machine to verify their drop resistance.

[0003] Existing drop testing machines use a clamping mechanism to hold and fix the product, then raise it to a height, and finally release the clamping mechanism to allow the product to fall freely to complete one test. For a second test, manual intervention is required to fix the workpiece back onto the clamping mechanism, and this process is repeated. To improve testing efficiency, existing technologies often use robotic arms to clamp the product onto the clamping mechanism instead of manual labor, or a loading mechanism where a robotic arm picks up workpieces one by one for testing, and then batches the tested workpieces are collected and loaded onto the loading mechanism for a second test, repeating this process. This method is not only complex and costly, but it also cannot completely replace manual labor, as manual intervention is still required when testing the same product multiple times. Therefore, improvements are necessary. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fully automatic repeated drop test machine that does not require human intervention during the testing process, performs repeated drop tests automatically, improves the degree of automation, and improves testing efficiency by performing multiple consecutive drop tests.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fully automatic repeated drop test machine, including a frame, a collection device, a lifting drop device, and a lifting drive mechanism. The collection device is located at the lower part of the frame, the lifting drop device is slidably mounted on the frame, and the lifting drive mechanism is connected to the lifting drop device. The lifting drop device includes a drop slide, a platform, a pusher assembly, and a pusher drive assembly. The drop slide is slidably mounted on the frame, the platform is located on the drop slide, the pusher assembly is slidably mounted on the upper part of the platform in the front-back direction and lightly abuts against the upper surface of the platform, and the pusher drive assembly is connected to the pusher assembly.

[0006] The collection device is equipped with an upward-facing collection trough, and a return window is provided on the rear side of the collection trough. A return push plate is slidably installed in the collection trough along the front-back direction. The lower part of the return push plate is lightly engaged with the bottom of the collection trough. The return push plate is driven by a return drive assembly.

[0007] In a further technical solution, the collection device is also equipped with an anti-drop mechanism, which includes an anti-drop slide, an anti-drop drive assembly, and at least one anti-drop baffle. The anti-drop slide is slidably mounted on the frame, the anti-drop drive assembly is connected to the anti-drop slide in a transmission manner, and the anti-drop baffle is fixedly mounted on the front side of the anti-drop slide. During testing, the anti-drop baffle seals the return window.

[0008] In a further technical solution, a test platform is provided at the lower part of the frame. The collection device includes two lower side plates spaced apart in the left-right direction, a middle lower plate located between the two lower side plates, and a lower bridging plate slidably installed on the middle lower plate in the front-back direction. The middle part of the lower bridging plate is slidably installed on the upper part of the middle lower plate. The left and right ends of the lower bridging plate extend to the upper parts of the two lower side plates and are slidably connected to the two lower side plates. Two return push plates are connected to the lower part of the lower bridging plate. The two return push plates are respectively set between the two lower side plates and the middle lower plate. The middle lower plate, the two return push plates, and the two lower side plates enclose and form two collection troughs. The return drive assembly includes a return drive cylinder, which is fixedly installed inside the middle lower plate. The piston rod of the return drive cylinder is fixedly connected to the lower bridging plate.

[0009] In a further technical solution, the pushing assembly includes a middle upper plate, an upper bridging plate, two upper side plates, and two pushing plates. The two upper side plates are respectively fixedly installed on the upper surface of the platform and located at the left and right ends of the platform. The middle upper plate is fixedly installed on the upper surface of the platform and located between the two upper side plates. The middle part of the upper bridging plate is slidably installed on the upper part of the middle upper plate. The left and right ends of the upper bridging plate extend to the upper parts of the two upper side plates and are slidably connected to the two upper side plates. The two pushing plates are respectively fixedly installed on the lower part of the upper bridging plate and located between the two upper side plates and the middle upper plate. The lower end surfaces of the two pushing plates are lightly abutted against the platform. The sides of the two pushing plates are lightly abutted against the middle plate and the two upper side plates, respectively. The pushing drive assembly includes a pushing drive cylinder, which is fixedly installed inside the middle upper plate. The piston rod of the pushing drive cylinder is fixedly connected to the upper bridging plate.

[0010] In a further technical solution, a pusher guide strip and two pusher guide blocks are provided at the lower part of the pusher plate. The pusher guide strip is fixedly installed on the front side of the pusher plate, and the two pusher guide blocks are fixedly installed on the left and right ends of the front side of the pusher guide strip, respectively. A first side guide slope is provided on the opposite side of the two pusher guide blocks.

[0011] The lower part of the return material pusher plate is provided with a return material guide strip and two return material guide blocks. The return material guide strip is fixedly installed on the rear side of the return material plate. The two return material guide blocks are fixedly installed on the left and right ends of the rear side of the return material guide strip, respectively. The upper edge of the rear side of the return material guide strip is provided with a first lower guide slope, and the opposite sides of the two return material guide blocks are provided with a second side guide slope.

[0012] In a further technical solution, the stage is slidably mounted on the upper part of the drop slide in the front-back direction, and the drop slide is fixedly mounted with a telescopic drive cylinder, the piston rod of the telescopic drive cylinder being fixedly connected to the lower part of the drop slide.

[0013] In a further technical solution, a buffer block is provided on one side of the drop slide, and two hydraulic buffers are provided at a distance from each other at the bottom of the platform. The two hydraulic buffers are respectively positioned facing the buffer block and respectively abutting against the buffer block. The buffer block is located between the two hydraulic buffers.

[0014] In a further technical solution, the lifting and dropping device is also equipped with an anti-jamming pushing mechanism. The anti-jamming pushing mechanism includes an anti-jamming drive cylinder, an anti-jamming push plate, an anti-jamming fixing plate, and two anti-jamming sliding columns. The anti-jamming fixing plate is fixedly installed on the lower part of the platform. The two anti-jamming sliding columns are slidably installed on the anti-jamming fixing plate in the front and rear directions, respectively. The anti-jamming push plate is fixedly installed on the front end of the two anti-jamming sliding columns. The anti-jamming drive cylinder is fixedly installed on the anti-jamming fixing plate, and the piston rod of the anti-jamming drive cylinder is fixedly connected to the anti-jamming push plate.

[0015] In a further technical solution, the frame includes an upper limit plate, a lower limit plate, two guide pillars, an upper housing, a lower housing, and a test platform. The upper housing is fixedly installed on the upper part of the test platform, and the lower housing is fixedly installed on the lower part of the test platform. A lifting port is opened at the rear of the test platform, and the two guide pillars are respectively inserted through the lifting port. The upper limit plate is fixedly installed on the upper end of the two guide pillars, and the lower limit plate is fixedly installed on the lower end of the two guide pillars. The drop slide and the anti-drop slide are slidably installed on the two guide pillars. The drop slide is located above the anti-drop slide. Anti-collision rubber blocks are respectively provided on the upper part of the drop slide and the lower part of the anti-drop slide. The two anti-collision rubber blocks abut against the upper limit plate and the lower limit plate respectively.

[0016] The lifting drive mechanism and the anti-fall drive assembly both include a drive motor, a synchronous belt, and two synchronous pulleys. The drive motor is fixedly mounted on the lower limit plate, the first synchronous pulley is fixedly mounted on the output shaft of the drive motor, and the second synchronous pulley is rotatably mounted on the upper limit plate. The synchronous belt is connected to the two synchronous pulleys respectively. The drop slide and the anti-fall slide are fixedly connected to the corresponding synchronous belts respectively.

[0017] In a further technical solution, a drop trigger mechanism is provided on one side of the first guide post, and an anti-drop trigger mechanism is provided on one side of the second guide post.

[0018] The drop triggering mechanism includes an upper drop detection switch and a lower drop detection switch arranged at intervals. The upper drop detection switch and the lower drop detection switch are respectively coordinated with the drop slide to trigger. When the drop slide triggers the lower drop detection switch, the upper surface of the platform and the bottom of the collection tank are at the same horizontal plane.

[0019] The anti-drop triggering mechanism includes an upper anti-drop detection switch and a lower anti-drop detection switch arranged at an interval. The upper and lower anti-drop detection switches are respectively triggered by the anti-drop slide. When the anti-drop slide triggers the upper anti-drop detection switch, the anti-drop baffle seals the return window. When the anti-drop slide triggers the lower anti-drop detection switch, the anti-drop baffle is located below the return window.

[0020] The advantages of this invention compared to existing technologies using the above structure are as follows: A lifting and dropping mechanism drives the lifting and dropping device upwards to the test height, while a pushing component drives the pushing component forward, thus pushing the test object placed on the platform into free fall. After the test object falls into the collection trough, the lifting and dropping device moves downwards until the platform aligns with the bottom of the collection trough. Finally, a return component drives the return push plate backwards until the test object is pushed back onto the platform. This process is repeated cyclically, eliminating the need for manual intervention and achieving fully automated repeated drop testing, thus improving automation and testing efficiency. During testing, an anti-drop baffle seals the return window to prevent the test object from falling out during the drop, improving reliability and stability. After the test is completed and before return, an anti-jamming mechanism completely pushes any test object partially outside the collection trough back into the collection trough, preventing interference between the test object and the platform, further improving reliability and stability. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the concealed upper and lower boxes of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the lifting and dropping device of this utility model;

[0025] Figure 4 This is a schematic diagram of the collection device of this utility model;

[0026] Figure 5 This is a schematic diagram showing the state of the telescopic drive cylinder pushing the platform forward during testing of this utility model;

[0027] Figure 6This is a schematic diagram showing the state of the pusher plate pushing the object to be tested out of the platform during testing.

[0028] Figure 7 This is a schematic diagram showing the state of the anti-jamming push plate moving forward to push the object to be tested back into the collection tank after a drop is completed;

[0029] Figure 8 This is a schematic diagram showing the state of the test object being pushed back to the loading platform by the return pusher plate after a drop test.

[0030] In the picture:

[0031] 1. Frame, 11. Test platform, 111. Lifting port, 12. Upper limit plate, 13. Lower limit plate, 14. Guide column, 15. Upper housing, 16. Lower housing, 17. Anti-collision rubber block;

[0032] 2. Collection device, 21. Collection trough, 22. Return window, 23. Return push plate, 24. Return guide bar, 241. First lower guide slope, 25. Return guide block, 251. Second side guide slope, 26. Return drive cylinder, 27. Lower side upright plate, 28. Middle lower upright plate, 29. Lower bridging plate;

[0033] 3 Lifting and dropping device, 31 Drop slide, 32 Carrying platform, 331 Middle upper plate, 332 Upper bridging plate, 333 Upper side plate, 334 Pushing plate, 335 Pushing guide strip, 336 Pushing guide block, 3361 First side guide slope, 34 Pushing drive cylinder, 35 Telescopic drive cylinder, 361 Buffer block, 362 Hydraulic buffer, 371 Anti-jamming drive cylinder, 372 Anti-jamming push plate, 373 Anti-jamming fixing plate, 374 Anti-jamming sliding column;

[0034] 4. Anti-drop mechanism, 41. Anti-drop slide, 42. Anti-drop baffle;

[0035] 51 Drive motor, 52 Synchronous belt, 53 Synchronous pulley;

[0036] 61. Upper drop detection switch; 62. Lower drop detection switch; 63. Upper anti-drop detection switch; 64. Lower anti-drop detection switch. Detailed Implementation

[0037] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0038] A fully automated repeated drop testing machine, such as Figures 1 to 8As shown, the device includes a frame 1, a collection device 2, a lifting and dropping device 3, and a lifting drive mechanism. The collection device 2 is located at the lower part of the frame 1. The lifting and dropping device 3 is slidably mounted on the frame 1. The lifting drive mechanism is connected to the lifting and dropping device 3. The lifting and dropping device 3 includes a dropping slide 31, a platform 32, a pushing assembly, and a pushing drive assembly. The dropping slide 31 is slidably mounted on the frame 1. The platform 32 is located on the dropping slide 31. The pushing assembly is slidably mounted on the upper part of the platform 32 in the front-back direction and lightly abuts against the upper end surface of the platform 32. The pushing drive assembly is connected to the pushing assembly. The collection device 2 has an upward-facing collection trough 21. A return window 22 is provided on the rear side of the collection trough 21. A return push plate 23 is slidably mounted in the collection trough 21 in the front-back direction. The lower part of the return push plate 23 lightly abuts against the bottom of the collection trough 21. The return push plate 23 is connected to the return drive assembly. Traditional drop testing machines require manual or robotic loading after each drop test before conducting a second drop test. This is particularly problematic when repeatedly dropping the same product. Since the drop position is not fixed, robotic loading is difficult to achieve accurately and automatically, necessitating complex visual recognition. This not only results in a complex structure and high cost but also requires time to calculate coordinates, leading to low testing efficiency. In contrast, this invention uses a lifting drive mechanism to move the lifting drop device 3 upwards to the test height, while a pushing drive component drives the pusher... The material assembly moves forward, thus pushing the test object placed on the platform 32 into free fall. After the test object falls into the collection tank 21, the lifting and dropping device 3 moves downward until the platform 32 is aligned with the bottom of the collection tank 21. Finally, the return drive assembly drives the return push plate 23 to move backward until the test object is pushed back to the platform 32. This cycle is repeated. No manual intervention is required during the test, realizing fully automatic repeated drop test, improving the degree of automation and test efficiency. There is no need for complicated calculations to identify the position of the test object after the fall. The structure is simple and the cost is low.

[0039] Specifically, the collection device 2 is also equipped with an anti-drop mechanism 4, which includes an anti-drop slide 41, an anti-drop drive assembly, and at least one anti-drop baffle 42. The anti-drop slide 41 is slidably mounted on the frame 1, the anti-drop drive assembly is connected to the anti-drop slide 41, and the anti-drop baffle 42 is fixedly mounted on the front side of the anti-drop slide 41. During testing, the anti-drop baffle 42 seals the return window 22. When the test object rebounds after falling, it is easy to fall from the return window 22 into the collection tank 21, causing the test to be stopped and requiring manual picking up of the fallen test object. Therefore, the anti-drop baffle 42 seals the return window 22 during testing to prevent the test object from falling out of the return window 22. When returning the material after completing one test, the anti-drop drive assembly drives the anti-drop slide 41 to move downward, thereby causing the anti-drop baffle 42 to move downward out of the return window 22 to open the return window 22 and avoid the lifting and falling device 3, thereby improving stability and reliability.

[0040] Specifically, a test platform 11 is provided at the lower part of the frame 1, and the collection device 2 includes two lower side plates 27 spaced apart in the left-right direction, a middle lower side plate 28 located between the two lower side plates 27, and a lower bridging plate 29 slidably installed on the middle lower side plate 28 in the front-back direction. The middle part of the lower bridging plate 29 is slidably installed on the upper part of the middle lower side plate 28, and the left and right ends of the lower bridging plate 29 extend to the upper parts of the two lower side plates 27 and slide with the two lower side plates 27. The lower bridging plate 29 is connected to two return material push plates 23. These two push plates 23 are respectively positioned between two lower side upright plates 27 and a middle lower upright plate 28. The middle lower upright plate 28, the two return material push plates 23, and the two lower side upright plates 27 enclose two collection troughs 21. The return material drive assembly includes a return material drive cylinder 26, which is fixedly installed inside the middle lower upright plate 28. The piston rod of the return material drive cylinder 26 is fixedly connected to the lower bridging plate 29. The middle lower upright plate 28 divides one collection trough 21 into two, allowing at least two test objects to be tested simultaneously in a single test. The two test objects fall into their respective collection troughs 21 without interference, improving the reliability of the test results. Furthermore, the lower bridging plate 29 connects the two return material push plates 23 to the same return material drive cylinder 26, resulting in a simple structure and low cost.

[0041] Specifically, the pushing assembly includes a central upper upright plate 331, an upper bridging plate 332, two upper side upright plates 333, and two pushing plates 334. The two upper side upright plates 333 are respectively fixedly installed on the upper end face of the platform 32 and located at the left and right ends of the platform 32. The central upper upright plate 331 is fixedly installed on the upper end face of the platform 32 and located between the two upper side upright plates 333. The middle part of the upper bridging plate 332 is slidably installed on the upper part of the central upper upright plate 331. The left and right ends of the upper bridging plate 332 extend to the upper parts of the two upper side upright plates 333 and are connected to the two pushing plates 334. The upper side plate 333 is slidably connected, and two pusher plates 334 are respectively fixedly installed on the lower part of the upper bridging plate 332 and located between the two upper side plates 333 and the middle upper plate 331. The lower end face of the two pusher plates 334 lightly abuts against the stage 32, and the sides of the two pusher plates 334 lightly abut against the middle plate and the two upper side plates 333 respectively. The pusher drive assembly includes a pusher drive cylinder 34, which is fixedly installed in the middle upper plate 331. The piston rod of the pusher drive cylinder 34 is fixedly connected to the upper bridging plate 332. The middle upper plate 331 divides the stage 32 into two loading areas, each loading area corresponding to a collection slot 21, so that the two test objects being tested simultaneously do not interfere with each other throughout the process, further improving the reliability of the test results.

[0042] Specifically, the lower part of the pusher plate 334 is provided with a pusher guide strip 335 and two pusher guide blocks 336. The pusher guide strip 335 is fixedly installed on the front side of the pusher plate 334, and the two pusher guide blocks 336 are respectively fixedly installed on the left and right ends of the front side of the pusher guide strip 335. The opposite sides of the two pusher guide blocks 336 are respectively provided with a first side guide slope 3361. The lower part of the return pusher plate 23 is provided with a return guide strip 24 and two return guide blocks 25. The return guide strip 24 is fixedly installed on the rear side of the return plate, and the two return guide blocks 25 are respectively fixedly installed on the left and right ends of the rear side of the return guide strip 24. The upper edge of the rear side of the return guide strip 24 is provided with a first lower guide slope 241, and the opposite sides of the two return guide blocks 25 are respectively provided with a second side guide slope 251. The push guide block 336 and the return guide block 25 are triangular in shape. They guide the test object when pushing it through the first lower guide slope 241, the first side guide slope 3361 and the second side guide slope 251, so as to avoid the test object getting stuck on the collection tank 21 or the stage 32, thereby improving reliability and stability.

[0043] Specifically, the platform 32 is slidably mounted on the upper part of the drop slide 31 in the front-to-back direction. A telescopic drive cylinder 35 is fixedly mounted on the drop slide 31, and the piston rod of the telescopic drive cylinder 35 is fixedly connected to the lower part of the drop slide 31. After the lifting and dropping device 3 moves upward to the test height, as... Figure 5 As shown, the stage 32 is first pushed forward by the telescopic drive cylinder 35, so that the front edge of the stage 32 is directly above the collection tank 21, thereby ensuring that the object to be tested falls accurately into the collection tank 21, further improving reliability and stability.

[0044] Specifically, a buffer block 361 is provided on one side of the drop slide 31, and two hydraulic buffers 362 are provided at a distance from each other at the bottom of the platform 32. The two hydraulic buffers 362 are respectively positioned facing the buffer block 361 and respectively abutting against the buffer block 361. The buffer block 361 is located between the two hydraulic buffers 362. When the telescopic drive cylinder 35 drives the platform 32 to move, due to the large instantaneous driving force of the telescopic drive cylinder 35, the platform 32 will stop suddenly, causing the test object to fall due to inertia. As a result, the test object will not fall along the designated route and will fall outside the collection tank 21. Therefore, by setting the hydraulic buffers 362, the platform 32 is brought to a slow stop to prevent the test object from falling due to inertia.

[0045] Specifically, the lifting and dropping device 3 is also equipped with an anti-jamming pushing mechanism, which includes an anti-jamming driving cylinder 371, an anti-jamming push plate 372, an anti-jamming fixing plate 373, and two anti-jamming sliding columns 374. The anti-jamming fixing plate 373 is fixedly installed on the lower part of the platform 32. The two anti-jamming sliding columns 374 are slidably installed on the anti-jamming fixing plate 373 in the front and rear directions, respectively. The anti-jamming push plate 372 is fixedly installed on the front end of the two anti-jamming sliding columns 374. The anti-jamming driving cylinder 371 is fixedly installed on the anti-jamming fixing plate 373, and the piston rod of the anti-jamming driving cylinder 371 is fixedly connected to the anti-jamming push plate 372. After the test object falls into the collection tank 21, although the anti-drop baffle 42 seals the return window 22, when the test object is located near the return window 22, after the anti-drop baffle 42 opens the return window 22, the test object is easily affected by vibration or external factors and partially falls outside the collection tank 21, thus interfering with the stage 32 and preventing normal return. Figure 7 As shown, before the material is returned, the anti-jamming drive cylinder 371 drives the anti-drop baffle 42 to move forward and push the object to be tested back into the collection tank 21 completely before the material is returned, thereby avoiding interference and further improving reliability and stability.

[0046] Specifically, the frame 1 includes an upper limit plate 12, a lower limit plate 13, two guide pillars 14, an upper housing 15, a lower housing 16, and a test platform 11. The upper housing 15 is fixedly installed on the upper part of the test platform 11, and the lower housing 16 is fixedly installed on the lower part of the test platform 11. A lifting port 111 is opened at the rear of the test platform 11, and the two guide pillars 14 are respectively inserted through the lifting port 111. The upper limit plate 12 is fixedly installed on the upper end of the two guide pillars 14, and the lower limit plate 13 is fixedly installed on the lower end of the two guide pillars 14. The drop slide 31 and the anti-drop slide 41 are both slidably installed on the two guide pillars 14. The drop slide 31 is located on the anti-drop slide 41. Above 1, anti-collision rubber blocks 17 are respectively provided on the upper part of the drop slide 31 and the lower part of the anti-fall slide 41. The two anti-collision rubber blocks 17 are respectively abutted and cooperate with the upper limit plate 12 and the lower limit plate 13. The lifting drive mechanism and the anti-fall drive assembly both include a drive motor 51, a synchronous belt 52 and two synchronous pulleys 53. The drive motor 51 is fixedly installed on the lower limit plate 13, the first synchronous pulley 53 is fixedly installed on the output shaft of the drive motor 51, the second synchronous pulley 53 is rotatably installed on the upper limit plate 12, the synchronous belt 52 is respectively connected to the two synchronous pulleys 53 for transmission, and the drop slide 31 and the anti-fall slide 41 are respectively fixedly connected to the corresponding synchronous belts 52. The upper limit plate 12 and the lower limit plate 13 physically limit the drop slide 31 and the anti-drop slide 41, respectively. During material return, the anti-drop mechanism 4 moves downward through the lifting opening 111 into the lower box 16, protecting the collecting device 2 and the lifting drop device 3 through the upper box 15 and the lower box 16, and also providing sound insulation to reduce noise generated during the drop. The drive motor 51 is a servo motor, which facilitates the control of the drop slide 31 to move to different test heights.

[0047] Specifically, a drop trigger mechanism is provided on one side of the first guide post 14, and an anti-drop trigger mechanism is provided on one side of the second guide post 14. The drop trigger mechanism includes an upper drop detection switch 61 and a lower drop detection switch 62 arranged at intervals. The upper drop detection switch 61 and the lower drop detection switch 62 are respectively triggered and cooperate with the drop slide 31. When the drop slide 31 triggers the lower drop detection switch 62, the upper end surface of the platform 32 and the bottom of the collection tank 21 are at the same horizontal plane. The anti-drop trigger mechanism includes an upper anti-drop detection switch 63 and a lower anti-drop detection switch 64 arranged at intervals. The upper anti-drop detection switch 63 and the lower anti-drop detection switch 64 are respectively triggered and cooperate with the anti-drop slide 41. When the anti-drop slide 41 triggers the upper anti-drop detection switch 63, the anti-drop baffle 42 seals the return window 22. When the anti-drop slide 41 triggers the lower anti-drop detection switch 64, the anti-drop baffle 42 is located below the return window 22. The positions of the drop trigger mechanism and the anti-drop trigger mechanism are detected by the drop slide 31 and the anti-drop slide 41 respectively, thereby achieving automatic triggering and execution without manual operation. Of course, trigger switches are also set on the moving paths of the pusher plate 334 and the return pusher plate 23 to achieve automatic triggering. These trigger switches, along with the upper drop detection switch 61, the lower drop detection switch 62, the upper anti-drop detection switch 63, and the lower anti-drop detection switch 64, are all proximity sensors.

[0048] The working principle of this utility model is as follows:

[0049] Before testing, such as Figure 2 As shown, the lifting drive mechanism drives the lifting drop device 3 to move upward to the test height, and the anti-drop drive component drives the anti-drop baffle 42 to move upward to seal the return material window 22;

[0050] During testing, such as Figure 5 As shown, the telescopic drive cylinder 35 drives the platform 32 to move forward, so that the front edge of the platform 32 is directly above the collection tank 21, and then... Figure 6 As shown, the pusher cylinder 34 drives the pusher plate 334 to move forward and push the object to be tested off the stage 32.

[0051] After the test object falls into the collection tank 21, as Figure 7 As shown, the lifting drive mechanism drives the lifting drop device 3 to move downward, so that the anti-jamming push plate 372 is located at the lower part of the collection tank 21. Then, the anti-jamming drive cylinder 371 drives the anti-jamming push plate 372 to move forward, pushing the test object that is partially located outside the collection tank 21 back into the collection tank 21.

[0052] When recycling materials, such as Figure 8As shown, the lifting drive mechanism continues to drive the lifting drop device 3 to move downwards until the upper surface of the platform 32 is at the same level as the bottom of the collection tank 21. Then, the return drive cylinder 26 drives the return push plate 23 to move backwards to push the test object back from the collection tank 21 to the platform 32. The lifting drive mechanism drives the lifting drop device 3 to move upwards to the test height to perform the next round of drop test. This cycle is repeated until the specified number of tests is reached.

[0053] It is important to understand that the terms "front," "back," "left," and "right," etc., indicate directions or positional relationships based on... Figure 2 The orientations or positional relationships shown are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the protection content of this utility model.

[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A fully automatic repeated drop test machine, comprising a frame (1), a collection device (2), a lifting drop device (3), and a lifting drive mechanism, wherein the collection device (2) is disposed at the lower part of the frame (1), the lifting drop device (3) is slidably mounted on the frame (1), and the lifting drive mechanism is connected to the lifting drop device (3) in a transmission manner, characterized in that: The lifting and dropping device (3) includes a dropping slide (31), a platform (32), a pushing assembly and a pushing drive assembly. The dropping slide (31) is slidably mounted on the frame (1) and the platform (32) is set on the dropping slide (31). The pushing assembly is slidably mounted on the upper part of the platform (32) in the front-back direction and lightly abuts against the upper end surface of the platform (32). The pushing drive assembly is connected to the pushing assembly in a transmission manner. The collecting device (2) is provided with an upward-facing collecting trough (21). A return window (22) is provided on the rear side of the collecting trough (21). A return push plate (23) is slidably installed in the collecting trough (21) along the front-back direction. The lower part of the return push plate (23) lightly abuts against the bottom of the collecting trough (21). The return push plate (23) is connected to a return drive assembly.

2. The fully automatic repeated drop test machine according to claim 1, characterized in that: The collection device (2) is also provided with an anti-drop mechanism (4). The anti-drop mechanism (4) includes an anti-drop slide (41), an anti-drop drive assembly, and at least one anti-drop baffle (42). The anti-drop slide (41) is slidably mounted on the frame (1). The anti-drop drive assembly is connected to the anti-drop slide (41) in a transmission manner. The anti-drop baffle (42) is fixedly mounted on the front side of the anti-drop slide (41). During the test, the anti-drop baffle (42) seals the return window (22).

3. The fully automatic repeated drop test machine according to claim 2, characterized in that: The lower part of the frame (1) is provided with a test platform (11). The collection device (2) includes two lower side plates (27) spaced apart in the left-right direction, a middle lower plate (28) located between the two lower side plates (27), and a lower bridging plate (29) slidably installed on the middle lower plate (28) in the front-back direction. The middle part of the lower bridging plate (29) is slidably installed on the upper part of the middle lower plate (28), and the left and right ends of the lower bridging plate (29) extend to the upper parts of the two lower side plates (27) and are slidably connected to the two lower side plates (27). The lower part of the lower bridging plate (29) is connected to two return push plates (23). The two return push plates (23) are respectively disposed between the two lower side upright plates (27) and the middle lower upright plate (28). The middle lower upright plate (28), the two return push plates (23) and the two lower side upright plates (27) enclose and form two collection grooves (21). The return drive assembly includes a return drive cylinder (26). The return drive cylinder (26) is fixedly installed in the middle lower upright plate (28). The piston rod of the return drive cylinder (26) is fixedly connected to the lower bridging plate (29).

4. The fully automatic repeated drop test machine according to claim 3, characterized in that: The pushing assembly includes a middle upper plate (331), an upper bridging plate (332), two upper side plates (333), and two pushing plates (334). The two upper side plates (333) are respectively fixedly installed on the upper end face of the platform (32) and located at the left and right ends of the platform (32). The middle upper plate (331) is fixedly installed on the upper end face of the platform (32) and located between the two upper side plates (333). The middle part of the upper bridging plate (332) is slidably installed on the upper part of the middle upper plate (331). The left and right ends of the upper bridging plate (332) extend to the upper part of the two upper side plates (333) and are connected to the two upper side plates (334). The upright plate (333) is slidably connected, and the two pusher plates (334) are respectively fixedly installed on the lower part of the upper bridge plate (332) and located between the two upper side upright plates (333) and the middle upper upright plate (331). The lower end face of the two pusher plates (334) is lightly abutted against the platform (32), and the side of the two pusher plates (334) is lightly abutted against the middle upright plate and the two upper side upright plates (333) respectively. The pusher drive assembly includes a pusher drive cylinder (34), which is fixedly installed in the middle upper upright plate (331). The piston rod of the pusher drive cylinder (34) is fixedly connected to the upper bridge plate (332).

5. The fully automatic repeated drop test machine according to claim 4, characterized in that: The lower part of the pusher plate (334) is provided with a pusher guide strip (335) and two pusher guide blocks (336). The pusher guide strip (335) is fixedly installed on the front side of the pusher plate (334), and the two pusher guide blocks (336) are respectively fixedly installed on the left and right ends of the front side of the pusher guide strip (335). The opposite sides of the two pusher guide blocks (336) are respectively provided with a first side guide slope (3361). The lower part of the return material push plate (23) is provided with a return material guide strip (24) and two return material guide blocks (25). The return material guide strip (24) is fixedly installed on the rear side of the return material plate. The two return material guide blocks (25) are respectively fixedly installed on the left and right ends of the rear side of the return material guide strip (24). The upper edge of the rear side of the return material guide strip (24) is provided with a first lower guide slope (241). The opposite sides of the two return material guide blocks (25) are respectively provided with a second side guide slope (251).

6. The fully automatic repeated drop test machine according to claim 3, characterized in that: The platform (32) is slidably mounted on the upper part of the drop slide (31) in the front-back direction. The drop slide (31) is fixedly mounted with a telescopic drive cylinder (35), and the piston rod of the telescopic drive cylinder (35) is fixedly connected to the lower part of the drop slide (31).

7. The fully automatic repeated drop test machine according to claim 6, characterized in that: A buffer block (361) is provided on one side of the drop slide (31), and two hydraulic buffers (362) are provided at the lower part of the platform (32) with a front-to-back interval. The two hydraulic buffers (362) are respectively positioned towards the buffer block (361) and respectively abut against the buffer block (361). The buffer block (361) is located between the two hydraulic buffers (362).

8. The fully automatic repeated drop test machine according to claim 3, characterized in that: The lifting and dropping device (3) is also equipped with an anti-jamming pushing mechanism. The anti-jamming pushing mechanism includes an anti-jamming driving cylinder (371), an anti-jamming pushing plate (372), an anti-jamming fixing plate (373), and two anti-jamming sliding columns (374). The anti-jamming fixing plate (373) is fixedly installed on the lower part of the platform (32). The two anti-jamming sliding columns (374) are slidably installed on the anti-jamming fixing plate (373) in the front and rear directions, respectively. The anti-jamming pushing plate (372) is fixedly installed on the front end of the two anti-jamming sliding columns (374). The anti-jamming driving cylinder (371) is fixedly installed on the anti-jamming fixing plate (373). The piston rod of the anti-jamming driving cylinder (371) is fixedly connected to the anti-jamming pushing plate (372).

9. A fully automatic repeated drop testing machine according to any one of claims 3 to 8, characterized in that: The frame (1) includes an upper limit plate (12), a lower limit plate (13), two guide pillars (14), an upper housing (15), a lower housing (16), and the test platform (11). The upper housing (15) is fixedly installed on the upper part of the test platform (11), and the lower housing (16) is fixedly installed on the lower part of the test platform (11). A lifting port (111) is provided at the rear of the test platform (11), and the two guide pillars (14) are respectively inserted into the lifting port (111). The upper limit plate (12) is fixedly installed on the test platform (11). At the upper end of the two guide posts (14), the lower limit plate (13) is fixedly installed at the lower end of the two guide posts (14). The drop slide (31) and the anti-drop slide (41) are slidably installed on the two guide posts (14). The drop slide (31) is located above the anti-drop slide (41). The upper part of the drop slide (31) and the lower part of the anti-drop slide (41) are respectively provided with anti-collision rubber blocks (17). The two anti-collision rubber blocks (17) respectively abut against the upper limit plate (12) and the lower limit plate (13). The lifting drive mechanism and the anti-fall drive assembly both include a drive motor (51), a synchronous belt (52), and two synchronous pulleys (53). The drive motor (51) is fixedly installed on the lower limit plate (13), the first synchronous pulley (53) is fixedly installed on the output shaft of the drive motor (51), and the second synchronous pulley (53) is rotatably installed on the upper limit plate (12). The synchronous belt (52) is connected to the two synchronous pulleys (53) respectively. The drop slide (31) and the anti-fall slide (41) are fixedly connected to the corresponding synchronous belts (52) respectively.

10. A fully automatic repeated drop test machine according to claim 9, characterized in that: A drop trigger mechanism is provided on one side of the first guide post (14), and an anti-drop trigger mechanism is provided on one side of the second guide post (14). The drop triggering mechanism includes an upper drop detection switch (61) and a lower drop detection switch (62) arranged at an interval between the upper and lower parts. The upper drop detection switch (61) and the lower drop detection switch (62) are respectively triggered and cooperate with the drop slide (31). When the drop slide (31) triggers the lower drop detection switch (62), the upper end surface of the platform (32) and the bottom of the collection groove (21) are on the same horizontal plane. The anti-drop triggering mechanism includes an upper anti-drop detection switch (63) and a lower anti-drop detection switch (64) arranged at an interval. The upper anti-drop detection switch (63) and the lower anti-drop detection switch (64) are respectively triggered and cooperate with the anti-drop slide (41). When the anti-drop slide (41) triggers the upper anti-drop detection switch (63), the anti-drop baffle (42) seals the return window (22). When the anti-drop slide (41) triggers the lower anti-drop detection switch (64), the anti-drop baffle (42) is located below the return window (22).

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