Lifting falling mechanism and earphone testing machine

Abstract

The utility model discloses a lifting falling mechanism and an earphone testing machine, the earphone testing machine comprises the lifting falling mechanism, a feeding jig for placing an earphone, a multi-axis manipulator for taking and placing the earphone, and a CCD visual detection mechanism for detecting the earphone, the lifting falling mechanism comprises a falling seat and a first lifting mechanism for controlling the falling seat to lift, a discharging platform and a clamping assembly are arranged on the falling seat, the discharging platform is located on the lower side of the clamping assembly, the discharging platform comprises two movable sub-platforms and a first air cylinder for controlling the distance between the two sub-platforms, and the clamping assembly comprises two clamps which are oppositely arranged and a second air cylinder for controlling the distance between the two clamps. According to the utility model, through the arrangement of the lifting falling mechanism, the controllability of the falling height of the earphone is realized, and the consistency of falling postures is ensured; automatic circular falling of the earphone can be realized, and the accuracy of falling times is ensured; the labor intensity of workers and the risk of errors of manual falling operation are effectively reduced, and the working efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of headphone drop testing technology, specifically a lifting drop mechanism and a headphone testing machine. Background Technology

[0002] Drop testing is an essential and crucial step in the production of high-end headphones, playing a vital role in improving headphone quality. Currently, most manufacturers conduct drop tests manually, which increases the workload for employees and results in poor consistency in drop height and posture. Manual counting is also prone to errors. Therefore, it is difficult to guarantee the comparability and consistency of each testing cycle when headphones are manually handled for drop testing. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a lifting and dropping mechanism. Through the cooperation of the feeding platform and the clamping components, the initial posture of the product under test is ensured to be stable during the drop. The lifting mechanism raises the drop seat, ensuring the consistency of the drop height for each product. It can also meet the drop height requirements of different products as needed. The system can automatically count the number of drops to ensure accuracy and avoid errors from manual counting. It can handle multiple products simultaneously, making it highly adaptable. Furthermore, the product under test held by the drop seat and clamping components can be rotated to different angles to achieve multi-directional drop testing.

[0004] This utility model also provides an earphone testing machine, in which the CCD vision inspection mechanism facilitates the photographic inspection of earphones to screen out earphones that do not require drop testing, thus avoiding triggering the drop operation and improving work efficiency; the lifting drop mechanism enables controllability of the earphone's drop height, ensuring consistency of the drop posture; and it can realize automatic cyclic drop testing of earphones, ensuring the accuracy of the number of drops; effectively reducing the workload of manual labor and the risk of human error in drop operation; it can also be used for multiple products, improving applicability; and the detachable drop platform allows for the use of different impact materials as needed, providing diversity in drop testing.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A lifting and dropping mechanism is provided, including a dropping seat and a first lifting mechanism for controlling the lifting and lowering of the dropping seat. The dropping seat is provided with a feeding platform and a clamping assembly. The feeding platform is located below the clamping assembly. The feeding platform includes two movable sub-platforms and a first cylinder for controlling the distance between the two sub-platforms. The clamping assembly includes two clamps arranged opposite each other and a second cylinder for controlling the distance between the two clamps.

[0007] A support seat is provided on the sliding seat of the first lifting mechanism, and the drop seat is rotatably connected to the support seat. A rotary motor for controlling the rotation of the support seat is also provided on the support seat.

[0008] A headphone testing machine is provided, including a base, on which:

[0009] Lifting and dropping mechanism;

[0010] A loading fixture for holding the headphones to be tested;

[0011] A multi-axis robotic arm is used to pick up and put away earphones.

[0012] A CCD visual inspection mechanism is used to inspect headphones. The CCD visual inspection mechanism includes a platform, a CCD camera located on the upper side of the platform, and a second lifting mechanism that controls the lifting of the CCD camera.

[0013] The CCD vision inspection mechanism also includes a translation mechanism that controls the translation of the CCD camera and the second lifting mechanism.

[0014] The multi-axis manipulator includes a base mounted on a base, a rotating seat rotatably mounted on the base, a multi-axis manipulator mounted on the rotating seat, and a pneumatic gripper rotatably mounted on the side of the multi-axis manipulator away from the rotating seat.

[0015] The headphone testing machine also includes a drop platform and a drop cylinder mounted on the base and located below the drop seat, the drop cylinder being slidably connected to the base.

[0016] The drop platform is detachably connected to the base.

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

[0018] 1. The lifting and dropping mechanism of this utility model places the product to be tested on the feeding platform and then uses a clamping component to hold the product to be tested, which can ensure the stability of the initial posture of the product to be tested during the drop process; the method of lifting the dropping seat by the first lifting mechanism ensures the consistency of the drop height of the product to be tested each time; at the same time, it can realize the drop requirements of different products at different heights as needed; the system can use an automatic counting method to ensure the accuracy of the number of drops, avoiding errors in manual counting; and it can handle multiple products, making it highly applicable.

[0019] 2. The product under test held by the drop seat and clamping assembly of the lifting drop mechanism of this utility model can be rotated to different angles to achieve multi-directional drop testing.

[0020] 3. This utility model provides an earphone testing machine, wherein the CCD vision inspection mechanism facilitates the photographic inspection of earphones to screen out earphones that do not require drop testing, thus avoiding triggering the drop operation and improving work efficiency; the first lifting mechanism enables controllability of the earphone drop height; the cooperation of the feeding platform and clamping components ensures the consistency of the drop posture; and it can realize automatic cyclic drop of earphones to ensure the accuracy of the drop count; effectively reducing the workload of manual labor and the risk of human error in drop operation; it can also handle multiple products, improving applicability.

[0021] 4. The drop tube design of this utility model prevents the headphones from bouncing to other areas after falling; the detachable design of the drop platform allows for the use of different impact materials as needed, providing versatility for drop testing. Attached Figure Description

[0022] Appendix Figure 1 This is a structural schematic diagram of the lifting and dropping mechanism of this utility model.

[0023] Appendix Figure 2 This is a schematic diagram of the drop seat of this utility model.

[0024] Appendix Figure 3 This is a schematic diagram of the headphone testing machine of this utility model after the housing is installed.

[0025] Appendix Figure 4 This is a structural schematic diagram of the headphone testing machine of this utility model.

[0026] Appendix Figure 5 This is a schematic diagram of the multi-axis robotic arm of the headphone testing machine of this utility model.

[0027] Appendix Figure 6 This is a schematic diagram of the CCD vision inspection mechanism of the headphone testing machine of this utility model.

[0028] Appendix Figure 7 The attached diagram shows the structure of the drop tube of the earphone testing machine of this utility model. The numbers on the diagram are as follows: 1. Lifting and dropping mechanism; 11. Drop seat; 12. First lifting mechanism; 13. Sub-platform; 14. First cylinder; 15. Clamp; 16. Second cylinder; 17. Support seat; 18. Rotating motor; 19. Belt; 2. Feeding fixture; 21. Earphone slot; 3. Multi-axis robotic arm; 31. Base; 32. Rotating seat; 33. Multi-axis robotic arm; 34. Pneumatic clamp; 4. CCD vision inspection mechanism; 41. Placement stage; 42. CCD camera; 43. Second lifting mechanism; 44. Translation mechanism; 5. Drop stage; 6. Drop tube; 7. Base; 8. Housing. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "comprising" as in this utility model specification and claims means that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "set," "connect," or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Above," "below," etc., are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0031] like Figure 1 , Figure 2 As shown, this utility model provides a lifting and dropping mechanism 1, including a dropping seat 11 and a first lifting mechanism 12 for controlling the lifting and lowering of the dropping seat 11. The first lifting mechanism 12 can be a lead screw model or a linear module. The dropping seat 11 is provided with a feeding platform and a clamping assembly. The feeding platform is located below the clamping assembly. The feeding platform includes two movable sub-platforms 13 and a first cylinder 14 for controlling the distance between the two sub-platforms 13. The clamping assembly includes two clamps 15 arranged opposite each other and a second cylinder 16 for controlling the distance between the two clamps 15. The lifting and dropping mechanism 1 of this utility model also includes a control system. The first lifting mechanism 12, the first cylinder 14, and the second cylinder 16 are all connected to the control system.

[0032] When performing a drop test using this invention, the first cylinder 14 drives the two sub-platforms 13 to merge into a continuous plane, facilitating the placement of the product under test (such as headphones). The clamping assembly, driven by the second cylinder 16, moves the two clamps 15 to clamp the product under test. Then, the first cylinder 14 drives the two sub-platforms 13 to move away from each other, causing the product under test to lose support and providing space for it to fall. Finally, the second cylinder 16 drives the two clamps 15 to separate, allowing the product under test to fall freely under gravity, thus completing one drop test. The above steps can be repeated as needed to perform multiple drop tests on the product under test. The lifting and dropping mechanism 1 of this utility model places the product to be tested on the feeding platform and then uses a clamping component to hold the product to be tested, which can ensure the stability of the initial posture of the product to be tested during the drop process; the first lifting mechanism 12 lifts the dropping seat 11 to ensure the consistency of the drop height of the product to be tested each time; at the same time, it can realize the drop requirements of different products at different heights as needed; the system can use an automatic counting method to ensure the accuracy of the number of drops and avoid errors in manual counting.

[0033] In one embodiment, a support seat 17 is provided on the sliding seat of the first lifting mechanism 12, and the drop seat 11 is rotatably connected to the support seat 17. A rotary motor 18 for controlling the rotation of the support seat 17 is also provided on the support seat 17. Specifically, the rotary motor 18 is connected to a control system, the drop seat 11 is rotatably mounted on the support seat 17 via a rotating shaft, and the output shaft of the rotary motor 18 is connected to the rotating shaft via a belt 19 to achieve rotation control of the drop seat 11.

[0034] In this embodiment, the rotating motor 18 drives the rotating shaft to rotate, causing the drop seat 11 and the clamped product under test to rotate synchronously. The rotation angle can be preset (such as 0°, 30°, 45°, 60°, etc.) to simulate the drop posture of the product under test at different tilt angles. Specifically, the product under test is clamped and fixed in the horizontal direction → rotated to the target angle → the platform 13 separates → the two clamps 15 of the clamping component move away from each other to trigger the drop, realizing multi-directional drop test.

[0035] like Figure 3 , Figure 4As shown, this utility model also provides an earphone testing machine, including a base 7. The base 7 is equipped with a lifting and dropping mechanism 1, a loading fixture 2, a multi-axis robotic arm 3, and a CCD vision inspection mechanism 4. The loading fixture 2 has multiple earphone slots 21 for placing earphones to be tested. The multi-axis robotic arm 3 is used to pick up and place earphones. The CCD vision inspection mechanism 4 is used to inspect earphones. The CCD vision inspection mechanism 4 includes a platform 41, a CCD camera 42 located on the platform 41, and a second lifting mechanism 43 for controlling the lifting and lowering of the CCD camera 42. A housing 8 may also be provided around the base 7 to surround the lifting and dropping mechanism 1, the loading fixture 2, the multi-axis robotic arm 3, and the CCD vision inspection mechanism 4.

[0036] Specifically, the platform 41 can be fixedly or detachably mounted on the base 7 or the second lifting mechanism 43. The multi-axis robot 3 is an existing structure. The multi-axis robot 3, the CCD camera 42, and the second lifting mechanism 43 are all connected to the control system. The second lifting mechanism 43 is a lead screw module or a linear module arranged in the vertical direction. The CCD camera 42 is mounted on the sliding seat of the second lifting mechanism 43. Driven by the second lifting mechanism 43, the CCD camera 42 moves up and down, which can be used to adjust the focus to take pictures and detect the appearance of the headphones. When the appearance of the headphones meets the requirements of the drop test, the drop operation is triggered. When the appearance of the headphones does not meet the requirements of the drop test (such as the degree of damage to the headphones reaching the point where the drop test is no longer required), the drop operation is not triggered, and the multi-axis robot 3 moves the headphones into the loading fixture 2.

[0037] In one embodiment, such as Figure 5 As shown, the multi-axis robotic arm 3 includes a base 31 mounted on a base 7. A rotating seat 32 is rotatably mounted on the base 31. The rotating seat 32 is connected to the base 31 via an electric rotating shaft. A multi-axis robotic arm 33 is mounted on the rotating seat 32. A pneumatic gripper 34 is rotatably mounted on the side of the multi-axis robotic arm 33 away from the rotating seat 32. The pneumatic gripper 34 is connected to the multi-axis robotic arm 33 via an electric rotating shaft. The multi-axis robotic arm 3 facilitates the gripping and movement of headphones to the desired position.

[0038] In one embodiment, such as Figure 6As shown, the CCD vision inspection mechanism 4 also includes a translation mechanism 44 that controls the translation of the CCD camera 42 and the second lifting mechanism 43. The translation mechanism 44 is a linear module or a lead screw module arranged in the horizontal direction, and the second lifting mechanism 43 is mounted on the slide of the translation mechanism 44. When the CCD camera 42 is not in use, it is in its initial position to avoid affecting the operation of the multi-axis robot 3, etc. When the multi-axis robot 3 moves the headphones to the vision inspection area of ​​the platform 41, the translation mechanism 44 moves the CCD camera 42 directly above the vision inspection area of ​​the platform 41, and the lifting mechanism adjusts the CCD camera 42 to the optimal shooting height to take pictures to check whether the appearance of the headphones meets the drop test requirements.

[0039] In one embodiment, such as Figure 7 As shown, the headphone testing machine also includes a drop platform 5 and a drop cylinder 6 disposed on the base 7 and located below the drop seat 11, wherein the drop cylinder 6 is slidably connected to the base 7. Preferably, the drop platform 5 is detachably connected to the base 7 to facilitate the replacement of the drop platform 5.

[0040] In this embodiment, the drop platform 5 can be set as a standard impact medium, such as a steel plate or a wooden board, or different impact media can be replaced as needed; the drop cylinder 6 and the base 7 can be connected by an electric slide rail to realize the movement of the drop cylinder 6, so that the earphone can be taken out after it falls into the drop cylinder 6.

[0041] The headphone testing machine of this invention can also be used for drop testing of other products. Here, we will take the drop test of headphones as an example for explanation.

[0042] The working process of the headphone testing machine of this utility model is as follows: Headphones are manually loaded onto the loading fixture 2. A multi-axis robotic arm 3 removes the headphones from the loading fixture 2 and moves them to the visual inspection area of ​​the CCD visual inspection mechanism 4's platform 41. Under the action of the second lifting mechanism 43 and the translation mechanism 44, the CCD camera 42 moves to the upper side of the visual inspection area and takes a picture for inspection. After the picture inspection is completed, the CCD camera 42 is moved back to its starting position so that the multi-axis robotic arm 3 can move the headphones onto the unloading platform of the drop seat 11. For headphones that pass the inspection, the drop seat 11 is raised to the required testing height under the drive of the first lifting mechanism 12. The position is determined, and the drop cylinder 6 is moved below the drop seat 11. Under the action of the first cylinder 14, the two sub-platforms 13 are driven to separate. Then, under the drive of the second cylinder 16, the two clamps 15 are released, allowing the earphone to fall freely (the earphone will fall into the drop cylinder 6). The drop cylinder 6 is removed, and the multi-axis robot arm 3 picks up the earphone and moves it to the visual inspection area of ​​the platform 41 of the CCD visual inspection mechanism 4. The above steps are repeated until the number of cycles is reached or the CCD camera 42 detects that the appearance of the earphone does not meet the drop test requirements, at which point the drop test ends. After the drop test, the multi-axis robot arm 3 transports the earphone to the loading fixture 2.

[0043] Those skilled in the art should understand that the specific embodiments described above are merely examples and not limitations. Various modifications, combinations, partial combinations, and substitutions can be made to the embodiments of this utility model according to design requirements and other factors, as long as they are within the scope of the appended claims or their equivalents, and thus fall within the scope of the rights to be protected by this utility model.

Claims

1. A lifting and dropping mechanism, characterized in that, The device includes a drop seat and a first lifting mechanism for controlling the lifting and lowering of the drop seat. The drop seat is provided with a feeding platform and a clamping assembly. The feeding platform is located below the clamping assembly. The feeding platform includes two movable sub-platforms and a first cylinder for controlling the distance between the two sub-platforms. The clamping assembly includes two clamps arranged opposite each other and a second cylinder for controlling the distance between the two clamps.

2. The lifting and dropping mechanism according to claim 1, characterized in that, A support seat is provided on the sliding seat of the first lifting mechanism, and the drop seat is rotatably connected to the support seat. A rotary motor for controlling the rotation of the support seat is also provided on the support seat.

3. An earphone testing machine, characterized in that, Includes a base, on which: The lifting and dropping mechanism as described in any one of claims 1-2; A loading fixture for holding the headphones to be tested; A multi-axis robotic arm is used to pick up and put away earphones. A CCD visual inspection mechanism is used to inspect headphones. The CCD visual inspection mechanism includes a platform, a CCD camera located on the upper side of the platform, and a second lifting mechanism that controls the lifting of the CCD camera.

4. The headphone testing machine according to claim 3, characterized in that, The CCD vision inspection mechanism also includes a translation mechanism that controls the translation of the CCD camera and the second lifting mechanism.

5. The headphone testing machine according to claim 3, characterized in that, The multi-axis manipulator includes a base mounted on a base, a rotating seat rotatably mounted on the base, a multi-axis manipulator mounted on the rotating seat, and a pneumatic gripper rotatably mounted on the side of the multi-axis manipulator away from the rotating seat.

6. The headphone testing machine according to claim 3, characterized in that, The headphone testing machine also includes a drop platform and a drop cylinder mounted on the base and located below the drop seat, the drop cylinder being slidably connected to the base.

7. The headphone testing machine according to claim 6, characterized in that, The drop platform is detachably connected to the base.

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