Falling test tool

Abstract

The utility model discloses a drop test tool. The drop test tool comprises a rack, a material box, a drop mechanism, a pickup mechanism and a visual inspection mechanism, the material box is mounted on the rack; the falling mechanism is installed on the machine frame and provided with a clamping jaw, and the clamping jaw is located above the material box. The picking mechanism is installed on the rack, the picking mechanism is provided with a picking clamping jaw, and the picking clamping jaw can move between the material box and the clamping jaw; the visual inspection mechanism is installed on the machine frame and electrically connected to the picking mechanism. According to the drop test tool, the drop test of equipment can be automatically carried out, manual intervention is reduced, the large-scale and high-frequency test requirements are met, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3C product test equipment field, especially a drop test tool. BACKGROUND

[0002] In the electronic product manufacturing industry, electronic devices may encounter various unexpected drop situations during actual use. In order to ensure the quality and reliability of the product, it is necessary to carry out strict drop test on these devices, simulate drop scenes of different heights, angles and ground materials, and evaluate their anti-drop performance. The existing drop test is only to place the measured device on the clamp by artificial, and after dropping, it also needs to be picked up by artificial, which is low in efficiency, needs to consume a lot of time and physical strength, and cannot meet the large-scale and high-frequency test demand, so a drop test tool with high automation degree and capable of performing large-scale and high-frequency drop test is urgently needed. SUMMARY

[0003] The utility model aims at providing a drop test tool to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The utility model solves the technical problem of the solution:

[0005] A drop test tool, comprising:

[0006] A rack;

[0007] A material box installed on the rack;

[0008] A drop mechanism installed on the rack, the drop mechanism is provided with a clamping jaw, and the clamping jaw is located above the material box;

[0009] A picking mechanism installed on the rack, the picking mechanism is provided with a picking clamping jaw, and the picking clamping jaw can move between the material box and the clamping jaw;

[0010] A visual detection mechanism installed on the rack, and the visual detection mechanism is electrically connected to the picking mechanism.

[0011] The technical scheme has at least the following beneficial effects: in daily device drop test, the first picking gripper picks up the device, then places the device on the gripper, and then the gripper is released, at this time, the device is free falling from the upper gripper to the lower magazine, and then the data of the device drop test can be obtained, then the visual detection mechanism captures the position of the tested device in the magazine by algorithm, and transmits the position data to the picking mechanism, so as to drive the picking gripper to move and pick up the tested device, and then place the device on the gripper again, and multiple tests of the same device can be performed, or the tested device can be placed in the recycling area, a new device is picked up and placed on the gripper, and the drop test of the next device is started, through the automatic reciprocating movement of the picking mechanism, the circulation of the tested device between the drop mechanism and the magazine is realized, the manual operation is reduced, the automation degree of the drop test is improved, the personnel on duty time is reduced, the all-weather operation of the drop test is realized, and the same set of devices can maximize the uniformity of the posture and the high consistency of the angle of multiple tested devices.

[0012] As a further improvement of the above technical scheme, the drop mechanism further comprises a column, the gripper is mounted on the column, the gripper has two first clamping ends, the two first clamping ends can move in the left-right direction towards each other or away from each other, and a clamping space is formed between the two first clamping ends. By moving the first clamping end to change the size of the clamping space, the tested device placed in the clamping space can be clamped in multiple postures.

[0013] As a further improvement of the above technical scheme, the column is provided with a first driving member, the first driving member has a first driving end capable of moving in the up-down direction, and the gripper is connected to the first driving end. The first driving member drives the gripper to move on the column, thereby realizing the change of the tested device in height, and further expanding the range of test experiments.

[0014] As a further improvement of the above technical scheme, a visual detection space is formed in the magazine, at least one pushing unit is arranged in the magazine, the pushing unit has a pushing end, and the pushing end can move in the horizontal direction towards or away from the visual detection space. Because the detection range of the visual detection mechanism is limited, but it is necessary to expand the falling space as much as possible in the test, in order to enable the visual detection mechanism to accurately capture the position of the tested device, after the test is completed, the pushing end of the pushing unit moves, and the tested device located outside the visual detection space is pushed into the visual detection space, at this time, the visual detection mechanism accurately captures the position of the tested device, and the picking gripper can accurately clamp the tested device.

[0015] As a further improvement of the above technical solution, the pushing unit further comprises a pushing plate, the pushing plate is installed on the pushing end, and the bottom of the pushing plate is at the same horizontal plane as the inner surface of the material box. Through the pushing plate, the pushing range of the pushing end can be expanded, so that the measured equipment falling into the material box can be stably pushed to the visual detection space.

[0016] As a further improvement of the above technical solution, the material box is provided with a plurality of pushing units circumferentially along the visual detection space at the horizontal plane. After setting a plurality of pushing units, the measured equipment at any position on the circumferential side of the visual detection space can be pushed, and the stability of the measured equipment entering the visual detection space is improved.

[0017] As a further improvement of the above technical solution, the material box is provided with a cleaning unit, the cleaning unit has a suction end, and the suction end can move in the material box. Through the cleaning unit, the debris falling out after the measured equipment falls can be sucked, so that the inside of the material box is clean and does not affect the next falling test data.

[0018] As a further improvement of the above technical solution, the material box can move and position in the up-down direction on the rack.

[0019] As a further improvement of the above technical solution, at least one light supplementing lamp is installed on the visual detection mechanism. Through the light supplementing lamp, the internal area of the material box can be illuminated, so that the visual detection mechanism can clearly observe and position the measured equipment in the material box, and the accuracy of picking is improved.

[0020] As a further improvement of the above technical solution, a storage mechanism is further included, the storage mechanism is provided with a storage space, and the picking gripper can move between the storage space and the gripper. Through the storage mechanism, after the picking mechanism completes the test of one measured equipment, the next measured equipment can be quickly picked into the gripper, so that the next round of falling test is carried out, the automation degree of the equipment is improved, the manual participation is reduced, and the zero equipment meets the needs of large-scale test. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only a part of the embodiments of the present application, not all embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creative labor.

[0022] Figure 1 is the overall structure schematic diagram of the falling test tool of the present application;

[0023] Figure 2is the overall structure schematic diagram of the clamp jaw of the utility model;

[0024] Figure 3 is the partial structure schematic diagram of the material box and the column connecting position of the utility model;

[0025] Figure 4 is the overall structure schematic diagram of the material box of the utility model;

[0026] Figure 5 is the overall structure schematic diagram of the cleaning unit of the utility model;

[0027] Figure 6 is the overall structure schematic diagram of the visual inspection mechanism of the utility model;

[0028] Figure 7 is the overall structure schematic diagram of the pickup clamp jaw of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, material box;11, push unit;111, push cylinder;112, push end;113, push plate;12, material box lifting cylinder;2, falling mechanism;21, column;211, first driving member;212, first driving end;22, clamp jaw;221, mounting frame;222, first clamping end;223, second driving member;3, pickup mechanism;31, pickup clamp jaw;32, six-axis robot;33, buffer cylinder;34, first buffer block;35, buffer elastic member;36, second buffer block;4, visual inspection mechanism;41, camera;42, annular frame;43, light supplement lamp;5, cleaning unit;51, cleaning mounting frame;52, cleaning moving frame;53, dust collector;54, suction nozzle. DETAILED DESCRIPTION

[0031] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0032] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0033] In the description of the utility model, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. Understand as not including the number, above, below, within, etc. Understand as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0034] In the description of the utility model, unless otherwise defined, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0035] In the electronic product manufacturing industry, electronic devices may encounter various unexpected drop situations in actual use. In order to ensure the quality and reliability of the product, it is necessary to strictly test the drop of these devices, simulate the drop scene of different height, angle and ground material, and evaluate its anti-drop performance.

[0036] The existing drop test only places the measured device on the clamp by artificial, and after dropping, it also needs artificial to pick up again, the efficiency is low, and the control precision is insufficient, therefore, the application provides a drop test tool to solve the above problems.

[0037] Referring to Figures 1-7 The drop test tool provided by the application comprises a rack (not shown in the drawing), a magazine 1, a drop mechanism 2, a picking mechanism 3 and a visual detection mechanism 4, wherein the magazine 1, the drop mechanism 2, the picking mechanism 3 and the visual detection mechanism 4 are all installed on the rack.

[0038] The magazine 1 is opened at the top, and the inside of the magazine 1 is placed with a marble;

[0039] The drop mechanism 2 is provided with a clamping jaw 22, and the clamping jaw 22 is located directly above the magazine 1;

[0040] The picking mechanism 3 is provided with a picking clamping jaw 31, and the picking clamping jaw 31 can move between the inside of the magazine 1 and the clamping jaw 22;

[0041] The visual detection mechanism 4 is electrically connected to the picking mechanism 3, the visual detection mechanism can detect the position of the measured device in the magazine 1, process the position information to form coordinate information, and then transmit the coordinate information to the picking mechanism 3, so that the picking mechanism 3 can accurately clamp the measured device in the magazine 1.

[0042] From the above, when the drop test of the device under test is carried out in daily life, the device under test is first picked up and placed on the clamping jaw 22, then the clamping jaw 22 is loosened, and the device under test is free-falling from the clamping jaw 22 to the lower magazine 1, simulating the situation of the device under test falling in use, so as to evaluate the anti-falling performance of the device under test. Then, the visual detection mechanism 4 captures the position of the device under test in the magazine 1, processes the position information to form coordinate information, and transmits the coordinate information to the picking mechanism 3, so as to drive the picking clamping jaw 31 to move and pick up the device under test, and then place the device under test on the clamping jaw 22 again to perform multiple tests on the same device. The device under test after completing the test can be placed in the recycling area, and a new device under test can be placed on the clamping jaw 22 to start the drop test of the next device under test.

[0043] Through the drop test tool, as long as sufficient devices under test are provided, the devices under test can be circulated between the magazine 1 and the clamping jaw 22 under the automatic operation of the picking mechanism 3. First, through the fully automated device, the accuracy of the data obtained by the drop test can be improved. Compared with manual operation, the device under test can be adjusted by the clamping jaw, which can maximize the adjustment of different poses of the same device under test or the unification of poses of multiple different devices under test, thereby ensuring the accuracy of the experimental data. Second, the automatic operation of the drop test tool can reduce the intervention of manual operation, meet the testing requirements of large scale and high frequency, and improve the testing efficiency.

[0044] Referring to Figure 1 and Figure 2 , the drop mechanism 2 further includes a column 21, and the clamping jaw 22 is installed on the column 21. The clamping jaw 22 and the column 21 can be connected through a guide rail or a clamping groove. The present application does not make specific limitations on this. The clamping jaw 22 has two first clamping ends 222, and a clamping space is formed between the two first clamping ends 222. The two first clamping ends 222 can move in the direction of approaching or moving away from each other in the horizontal plane. Specifically, the clamping jaw 22 is provided with a second driving member 223. The clamping jaw 22 includes a mounting frame 221 and two sliding frames installed on the mounting frame 221. The mounting frame 221 and the sliding frames can be connected through a guide rail or a clamping groove. The present application does not make specific limitations on this. The first clamping end 222 is the end of the sliding frame away from the mounting frame 221. In some embodiments, the second driving member 223 is a driving cylinder. The two sliding frames are respectively connected to the two ends of the second driving member 223. When the second driving member 223 is started, the two sliding frames are driven to move on the mounting frame 221, so as to change the size of the clamping space and adapt to various shapes of the device under test placed in the clamping space.

[0045] Referring to Figure 1 and Figure 3The first driving member 211 is arranged on the stand 21 and has a first driving end 212 capable of moving up and down on the stand 21, and the mounting frame 221 of the clamping jaw 22 is connected to the first driving end 212. Specifically, the first driving member 211 can be a gear chain module or a belt and pulley module. Specifically, in the embodiment, the stand 21 is provided with a guide rail extending in the vertical direction, the mounting frame 221 is slidably connected to the guide rail, the first driving member 211 is a belt and pulley module, which includes a motor, a pair of pulleys and a belt, the motor is mounted on the rack, the two pulleys are rotatably mounted on the two ends of the stand 21 in the up-down direction, the belt is wound around the two pulleys, the first driving end 212 is a connecting block, the connecting block is mounted on the belt and can move along the up-down direction with the belt, the connecting block is connected to the mounting frame 221 of the clamping jaw 22, the motor is started to drive the pulley to rotate, so that the belt rotates to drive the clamping jaw 22 to move along the up-down direction on the guide rail of the stand 21 through the first driving end 212, the clamping jaw 22 is driven to move on the stand 21 through the first driving member 211, thereby realizing the change of the measured device in height and further expanding the range of test experiments.

[0046] With reference to Figure 3 and Figure 4 The visual detection space is formed in the material box 1, and the projection of the visual detection space on the horizontal plane is located in the projection of the material box 1 on the same horizontal plane. The material box 1 is provided with at least one pushing unit 11, and the pushing unit 11 has a pushing end 112 capable of moving in the horizontal direction towards or away from the visual detection space. Because the detection range of the visual detection mechanism 4 is limited, but it is necessary to expand the falling space as much as possible in the test. In order to enable the visual detection mechanism 4 to accurately capture the position of the measured device, after completing the test, the pushing end 112 of the pushing unit 11 operates to push the measured device located outside the visual detection space into the visual detection space. At this time, the visual detection mechanism 4 accurately captures the position of the measured device, and the pickup jaw 31 can also accurately clamp the measured device.

[0047] The pushing unit 11 further includes a push plate 113, and the sidewall of the material box 1 is provided with a through hole for the push plate 113 to pass through. The push plate 113 is connected to the pushing end 112 of the pushing unit 11, and the bottom of the push plate 113 is at the same horizontal plane as the upper surface of the marble in the material box 1. This scheme expands the space that can be pushed by the pushing end 112, so that the measured device falling into the material box 1 can be stably and accurately pushed into the visual detection space.

[0048] Specifically, in some embodiments, the pushing unit 11 includes a pushing cylinder 111 and a guide rail. The pushing cylinder 111 is fixedly installed on the material box 1, with the piston rod end of the pushing cylinder 111 as the pushing end 112. The piston rod is fixedly connected to the push plate 113. A guide rail extending horizontally and toward the visual inspection space is fixedly installed on the push plate 113. The material box 1 is provided with a sliding block, and a sliding groove is opened on the sliding block. The sliding block is engaged with the guide rail through the sliding groove. In this embodiment, at least one guide rail is provided at the same pushing unit 11. This embodiment does not specifically limit the number. The sliding path of the push plate 113 is limited by the guide rail, so that the push plate 113 can move stably toward the visual inspection space under the action of the pushing cylinder 111.

[0049] Furthermore, the visual inspection space is located in the middle of the material box 1. The material box 1 has multiple pushing units 11 arranged around the visual inspection space on the horizontal plane. Specifically, the cross-section of the material box 1 on the horizontal plane is rectangular, and pushing units 11 are arranged on the four side walls of the material box 1. Through the mutual cooperation and sequential pushing of the four pushing units 11, the device under test at any position on the periphery of the visual inspection space can be moved, thereby improving the stability of the device under test entering the visual inspection space.

[0050] Reference Figure 3 and Figure 4 The material box 1 can move and be positioned in the vertical direction on the frame. Specifically, the frame is fixedly installed with material box lifting cylinders 12 on opposite sides of the material box 1. The side walls of the material box 1 corresponding to the material box lifting cylinders 12 are connected to the piston rod end of the material box lifting cylinders 12. The frame is provided with an upwardly extending lifting guide rail. The material box 1 is provided with a guide groove. The material box 1 is engaged with the lifting guide rail through the guide groove. When the material box lifting cylinders 12 are activated, the material box 1 can move and be positioned in the vertical direction on the frame.

[0051] Reference Figure 1 and Figure 5 The material box 1 is equipped with a cleaning unit 5, which has a suction end. The suction end can move inside the material box 1 to suck up the debris of the device under test that falls into the material box 1, so that the inside of the material box 1 remains clean and tidy each time a drop test is performed, and will not affect the test data of the next test.

[0052] Specifically, the cleaning unit 5 includes a cleaning mounting frame 51, a cleaning horizontal movement cylinder, a cleaning moving frame 52, a cleaning lifting cylinder, a vacuum cleaner 53, and a suction nozzle 54. The suction end is the output end of the suction nozzle 54. The cleaning mounting frame 51 is mounted on the material box 1 and located on the outside of the material box 1. The cleaning horizontal movement cylinder is mounted on the cleaning mounting frame 51. The cleaning moving frame 52 is mounted on the movable end of the cleaning horizontal movement cylinder. The cleaning moving frame 52 extends horizontally perpendicular to the moving direction of the cleaning horizontal movement cylinder and toward the inside of the material box 1. The cleaning lifting cylinder is mounted on the end of the cleaning moving frame 52 away from the cleaning mounting frame 51. The piston of the cleaning lifting cylinder moves vertically. The suction nozzle 54 is mounted on the bottom of the piston of the cleaning moving cylinder, and the output of the suction nozzle 54 is... The nozzle 54 is parallel to the length of the side wall of the material box 1 along the horizontal direction perpendicular to the direction of movement of the cleaning transverse cylinder. The lengths of the two are matched. The vacuum cleaner 53 is installed on the cleaning moving frame 52. The output end of the vacuum cleaner 53 is connected to the nozzle 54 through an air pipe. When the cleaning component is not working, the cleaning transverse cylinder pushes the cleaning moving frame 52 to move to one side inside the material box 1 to provide space avoidance for normal drop tests. When the test is completed and cleaning is required, the cleaning lifting cylinder first pushes the nozzle 54 down to the marble surface inside the material box 1. Then the vacuum cleaner 53 is started, and at the same time the cleaning transverse cylinder pushes the cleaning transverse frame to move gradually to suck up and clean all parts of the marble surface.

[0053] Reference Figure 1 and Figure 6 The visual inspection mechanism 4 includes a camera 41 and a camera mounting bracket. The camera mounting bracket is installed on the frame and located above the material box 1. The camera 41 is installed on the camera mounting bracket. The visual inspection mechanism 4 also includes at least one supplementary light 43. Specifically, the visual inspection mechanism 4 also includes an annular frame 42 and multiple supplementary lights 43. The annular frame 42 is installed on the frame and includes multiple connecting rods arranged around the circumference of the camera 41. The supplementary lights 43 correspond one-to-one with the connecting rods, and the supplementary lights 43 can rotate in a straight line parallel to the length direction of the corresponding connecting rod as the axis. The annular supplementary lights 43 provide supplementary lighting to the central camera 41. The supplementary lighting effect can be adjusted by rotating the supplementary lights 43 to improve the monitoring effect of the visual inspection mechanism 4.

[0054] Reference Figure 1 and Figure 7The picking mechanism 3 also includes a six-axis robot 32. The picking gripper 31 is installed on the output end of the six-axis robot 32. The output end of the six-axis robot 32 is also equipped with a sensor and a buffer mechanism. The sensor is used to sense whether the picking gripper 31 is holding the device under test. The buffer mechanism includes a buffer cylinder 33, a first buffer block 34, a buffer bolt, and a second buffer block 36 connected in sequence. The end of the buffer cylinder 33 away from the first buffer block 34 is connected to the six-axis robot 32. There are two buffer bolts, both of which pass through the first buffer block 34 and are threaded to the second buffer block 36. A buffer elastic element 35 is sleeved on the buffer bolt.

[0055] The drop test fixture also includes a storage mechanism, which can be a storage rack, hopper, or other storage device adapted to the device under test. This embodiment does not specifically limit this. The storage mechanism is provided with a storage space, and the storage space is provided with multiple neatly arranged placement slots. The placement slots can be used to place multiple devices under test. The picking gripper 31 can move between the storage space and the gripper 22, so that after the test of one device under test is completed, the next device under test can be quickly picked up and placed on the gripper 22 for the next round of drop test. This improves the automation level of the equipment, reduces manual intervention, and thus meets the needs of large-scale testing with zero equipment.

[0056] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A drop test fixture, characterized in that, include: frame; Material box (1), which is mounted on the frame; A drop mechanism (2) is installed on the frame, and the drop mechanism (2) is provided with a gripper (22) located above the material box (1); A picking mechanism (3) is mounted on the frame. The picking mechanism (3) is provided with a picking gripper (31) which can move between the material box (1) and the gripper (22). A visual inspection mechanism (4) is mounted on the frame and is electrically connected to the pickup mechanism (3).

2. The drop test fixture according to claim 1, characterized in that, The drop mechanism (2) also includes a column (21), and the gripper (22) is mounted on the column (21). The gripper (22) has two first gripping ends (222), which can move in the left and right directions toward each other or away from each other, and a gripping space is formed between the two first gripping ends (222).

3. The drop test fixture according to claim 2, characterized in that, The column (21) is provided with a first driving member (211), the first driving member (211) has a first driving end (212) that can move in the vertical direction, and the gripper (22) is connected to the first driving end (212).

4. The drop test fixture according to claim 1, characterized in that, A visual inspection space is formed inside the material box (1). The projection of the visual inspection space on the horizontal plane is located within the projection of the material box (1) on the same horizontal plane. At least one pushing unit (11) is provided in the material box (1). The pushing unit (11) has a pushing end (112). The pushing end (112) can move horizontally toward or away from the visual inspection space.

5. The drop test fixture according to claim 4, characterized in that, The pushing unit (11) further includes a push plate (113), which is connected to the pushing end (112).

6. The drop test fixture according to claim 4, characterized in that, The material box (1) has a plurality of pushing units (11) arranged in the horizontal plane along the circumference of the visual detection space.

7. The drop test fixture according to claim 1, characterized in that, The material box (1) is provided with a cleaning unit (5), the cleaning unit (5) has a suction end, and the suction end can move within the material box (1).

8. The drop test fixture according to claim 1, characterized in that, The material box (1) can move and be positioned on the frame in the vertical direction.

9. A drop test fixture according to claim 1, characterized in that, At least one supplementary light (43) is installed on the visual inspection mechanism (4).

10. A drop test fixture according to claim 1, characterized in that, It also includes a storage mechanism, which has a storage space, and the picking gripper (31) can move between the storage space and the gripper (22).

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