A drop test device

Abstract

The application discloses a falling test device, which comprises a mounting frame, at least one material receiving device and a conveying device. The material receiving device comprises a material receiving disc, which is rotatably mounted on the mounting frame and has a material receiving side. The material receiving disc has a first position in which the material receiving side faces upwards for receiving materials and a second position in which the material receiving side faces downwards for feeding materials. The conveying device is used for conveying parts to be tested and comprises a feeding end, which is located above the material receiving disc. The feeding end is used for feeding the parts to be tested onto the material receiving disc. The application aims at solving the problem of high error in the prior art that multiple falling tests are manually performed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drop test equipment, in particular to a drop test device. BACKGROUND

[0002] Many products need to be tested for reliability before they are put on the market: for example, TWS earphones need to be tested for three times before they are put on the market to test whether the products have cracking and electronic component damage risks; to ensure that the products are safe and reliable after being put on the market. The existing method is to have personnel drop the earphones from a certain height; repeatedly, to test whether the products have cracking or electronic component damage. SUMMARY

[0003] The main purpose of the present application is to provide a drop test device, which aims to solve the problem of high height error in the prior art by using manual drop test multiple times.

[0004] To achieve the above purpose, the present application provides a drop test device, comprising:

[0005] a mounting frame;

[0006] at least one receiving device, the receiving device comprising a receiving disc, the receiving disc being rotatably mounted on the mounting frame, one side of the receiving disc being a receiving side, the receiving disc having a first position in its rotating stroke for receiving the material with the receiving side upward, and a second position in its rotating stroke for dropping the material with the receiving side downward; and

[0007] a conveying device for conveying the parts to be tested, the conveying device comprising a dropping end, the dropping end being located on the upper side of the receiving disc;

[0008] wherein the dropping end is used to drop the parts to be tested onto the receiving disc.

[0009] Optionally, the upper side of the receiving disc is provided with an arc-shaped concave surface to form the receiving side.

[0010] Optionally, the mounting frame is further provided with a detection member on the upper side of the receiving disc, the detection member being used to detect whether the parts fall on the receiving disc.

[0011] Optionally, the detection member is provided in a ring shape to form an inner space on the inner side thereof, and the inner space is used to pass through the parts to be tested.

[0012] Optionally, the drop test device further comprises a sleeve, and the sleeve is provided with a through cavity extending upward and downward;

[0013] Correspondingly, the receiving disc is arranged in the cavity.

[0014] Optionally, the receiving device is provided with three receiving devices.

[0015] Correspondingly, the three receiving trays are arranged in the barrel cavity and are arranged in the up-down direction at intervals; one receiving tray is arranged close to the lower opening of the barrel cavity.

[0016] Optionally, the falling test device further comprises a receiving device, and the receiving device comprises a receiving tray, which is located at the lower side of the receiving tray and used to receive the parts to be detected falling from the receiving tray.

[0017] Optionally, a plurality of receiving grooves are formed in the upper side of the receiving tray in the horizontal direction, and the receiving tray can move in the horizontal direction so that one of the receiving grooves is located at the lower side of the receiving tray.

[0018] Optionally, the receiving device further comprises a driving motor, which is installed on the mounting frame and has an output end connected to the receiving tray, so as to drive the receiving tray to rotate.

[0019] Optionally, the conveying device comprises:

[0020] a fixing frame connected to the mounting frame; and

[0021] a conveying belt installed on the fixing frame and extending in the up-down direction at an angle, so as to form the feeding end at the upper end of the conveying belt, and the conveying belt is used to drive the parts to be detected to move along the extension direction of the conveying belt.

[0022] In the technical scheme of the present application, the parts to be detected are conveyed to a certain height by the conveying device, and then the parts to be detected are fed onto the receiving tray from the feeding end. The receiving tray is located at the first position to receive the parts to be detected and complete the first falling test. The receiving tray is controlled to rotate to the second position to perform the falling test again, so as to complete the second falling test. In the present application, the parts are sent to a certain height by the conveying device and then subjected to multiple falling tests. The position of the receiving tray in the up-down direction is fixed, the height error of multiple falling tests is small, and the efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0024] Fig. 1 The structure diagram of an embodiment of the falling test device provided by the present application.

[0025] Fig. 2 To Fig. 1 Cross-sectional structure of the middle sleeve.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] Reference Name Reference Name 100 Drop test device 32 Conveying belt 1 Mounting frame 4 Detection piece 2 Material receiving device 5 Sleeve 21 Material receiving disc 6 Barrel cavity 21a Material receiving side 7 Storage device 22 Driving motor fixing frame 71 Storage disc 3 Conveying device 8 Storage groove 3a Feeding end 9 Stop piece 31 Fixing frame

[0028] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0031] In addition, if the embodiments of the present application involve descriptions such as “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text includes three parallel solutions. Taking “A and / or B” as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0032] Many products need to be tested for reliability before they are put on the market: for example, TWS earphones need to be tested for three times before they are put on the market to test whether the products have cracking and electronic component damage risks; to ensure that the products are safe and reliable after being put on the market. The existing method is to have personnel drop the earphones from a certain height; repeatedly, to test whether the products have cracking or electronic component damage.

[0033] In view of this, the present invention proposes a drop test device. Figs. 1-2 This is one embodiment of the present invention.

[0034] Please see Figs. 1-2 The drop test device 100 includes a mounting frame 1, at least one receiving device 2, and a conveying device 3. The receiving device 2 includes a receiving tray 21, which is rotatably mounted on the mounting frame 1. One side of the tray is a receiving side 21a. The receiving tray 21 has a first position where the receiving side 21a faces upward for receiving materials, and a second position where the receiving side 21a faces downward for feeding materials. The conveying device 3 is used to convey the parts to be tested. The conveying device 3 includes a feeding end 3a, which is located above the receiving tray 21. The feeding end 3a is used to feed the parts to be tested onto the receiving tray 21.

[0035] In the technical solution of the present invention, the part to be tested is transported to a certain height by the transmission device 3, and the part to be tested is thrown onto the receiving tray 21 from the feeding end 3a. The receiving tray 21 is located at the first position to receive the part to be tested and complete the first drop test. The receiving tray 21 is then controlled to rotate to the second position to drop the part to be tested again to complete the second drop test. That is, in the present invention, after the part is sent to a certain height by the transmission device 3, multiple drop tests are performed. The receiving tray 21 is fixed in the vertical direction, and the height error of multiple drop tests is small and the efficiency is fast.

[0036] The height of the receiving tray 21 in the vertical direction is not limited, and multiple equidistant drop tests or multiple unequal-distance tests can be conducted. In addition, the number of receiving devices 2 installed is not limited, and can be selected for installation according to the actual experimental needs.

[0037] Furthermore, the upper side of the receiving tray 21 is provided with a concave arc-shaped surface to form the receiving side 21a. When the part to be tested falls onto the upper side of the receiving tray 21, because its upper side is arc-shaped, the part can move along its arc surface towards the center of the receiving tray 21, thus preventing it from falling out of the receiving tray 21.

[0038] Please see Fig. 2The mounting bracket 1 is also equipped with a detection element 4 on the upper side of the receiving tray 21. The detection element 4 is used to detect when a part falls onto the receiving tray 21. By providing the detection element 4, when the part to be tested falls onto the receiving tray 21 from top to bottom, the detection element 4 can detect the fall of the part. Therefore, after the part falls onto the receiving tray 21, the receiving tray 21 is controlled to rotate from the first position to the second position, so that the next drop test experiment can be automatically carried out after the receiving tray 21 receives the part.

[0039] Furthermore, the detection element 4 is arranged in a ring shape to form an inner space on its inner side, which is used for the part to be detected to pass through. By setting the detection element 4 in a ring shape, when the part passes through the detection element 4, it can be detected in the horizontal direction whether the part has passed through the detection element 4 and fallen onto the receiving tray 21, so as to avoid the situation where the part is misaligned with the detection element 4 in the horizontal direction when it falls and is not detected by the detection element 4. The arrangement of the detection element 4 is not limited. In one embodiment of the present invention, the detection element 4 is set as a fiber optic grating sensor arranged in a ring.

[0040] Please see Figs. 1-2 The drop test device 100 further includes a sleeve 5, which has a vertically penetrating cavity 6. Correspondingly, the receiving tray 21 is disposed within the cavity 6. By providing the sleeve 5, the part to be tested falls from the feeding end 3a into the cavity 6 of the sleeve 5 for a drop test, so that the part to be tested is in a relatively sealed environment during the test, avoiding interference from external factors. At the same time, the sleeve 5 restricts the movement path of the part to prevent the part from failing to fall onto the receiving tray 21 during the drop.

[0041] Specifically, in this embodiment, the parts need to undergo three drop tests, therefore, three receiving devices 2 are provided; correspondingly, the three receiving trays 21 are all located inside the cylindrical cavity 6 and are arranged at intervals along the vertical direction. The parts fall onto the uppermost receiving tray 21 via the feeding end 3a to complete the first drop test. Then, parts are fed from this receiving tray 21 onto the two receiving trays 21 below it to complete two more drop tests. When the part is located on the lowermost receiving tray 21, all drop tests are completed. The parts that have completed multiple drop tests can then be collected by controlling the receiving tray 21 to rotate to the second position.

[0042] The distance between the three receiving trays 21 is not limited and can be selected according to actual experimental needs to complete multiple equidistant drop tests or multiple unequal-distance drop tests.

[0043] Furthermore, the receiving tray 21 is positioned near the lower opening of the cylindrical cavity 6. In this embodiment, the parts that have completed three drop tests are located on the receiving tray 21 near the lower opening of the cylindrical cavity 6. When collecting the parts, the parts are at a relatively low height in the vertical direction. When the receiving tray 21 is driven to the second position for collection, its falling height is low, which facilitates collection.

[0044] By positioning the receiving tray 21 close to the lower opening of the cylindrical cavity 6, it is convenient to collect parts that have undergone multiple drop tests. Furthermore, the receiving tray 21 is located at the lower opening of the cylindrical cavity 6, ensuring a low height during collection.

[0045] Please see Fig. 1 The drop test device 100 further includes a receiving device 7, which includes a receiving tray 71 located below the receiving tray 21 to receive parts to be tested that fall from the receiving tray 21. By setting up the receiving tray 71, test samples can be automatically collected, facilitating testing personnel.

[0046] Furthermore, the upper side of the receiving tray 71 is provided with a plurality of receiving slots 8 in the horizontal direction. The receiving tray 71 can move in the horizontal direction so that one of the plurality of receiving slots 8 is located under the receiving tray 21. By providing a plurality of receiving slots 8 on the receiving tray 71, each receiving slot 8 can be located at the part drop position under the receiving tray 21 to independently collect the parts to be tested. Specifically, in this embodiment, by driving the receiving tray 71 to move, different receiving slots 8 are respectively located at the lower opening position of the sleeve 5 to receive parts that fall from the lower opening position of the sleeve 5. After each part is received, the receiving tray 71 is controlled to move so that a new receiving slot 8 that has not received a part is located at the lower opening position of the sleeve 5.

[0047] Please see Fig. 2 The receiving device 2 further includes a drive motor 22, which is mounted on the mounting bracket 1. Its output end is connected to the receiving tray 21 to drive the receiving tray 21 to rotate. By controlling the rotation of the drive motor 22 and with the receiving tray 21 mounted on the output end of the drive motor 22, the switching of the receiving tray 21 between the first position and the second position is completed. Specifically, in this embodiment, the output end of the drive motor 22 is mounted on the lower side of the receiving tray 21 so that when the receiving tray 21 is located inside the sleeve 5, it does not occupy the gap between the receiving tray 21 and the sleeve 5 in the horizontal direction.

[0048] Please see Fig. 1The transmission device 3 includes a fixed frame 31 and a transmission belt 32. The fixed frame 31 is connected to the mounting frame 1. The transmission belt 32 is mounted on the fixed frame 31 and extends obliquely in the vertical direction to form the feeding end 3a at its upper end. The transmission belt 32 is used to drive the part to be tested to move along the extension direction of the transmission belt 32. By setting the transmission belt 32 to transport the part to be tested, the product can be orderly sent to a certain height for drop test within a specified time.

[0049] Furthermore, since the conveyor belt 32 is inclined in the vertical direction, the part to be tested may slip off the conveyor belt 32 during transmission. Therefore, in this embodiment, multiple stoppers 9 are installed at intervals along the extension direction of the conveyor belt 32 to limit the part to be tested from falling off the conveyor belt 32. By setting the stoppers 9, the part to be tested is positioned above the stoppers 9 during transmission, thus preventing it from slipping off the conveyor belt 32.

[0050] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A drop test device, characterized in that, include: Mounting rack; At least one receiving device, the receiving device including a receiving tray rotatably mounted on the mounting frame, one side of which is a receiving side. The receiving tray has, during its rotational stroke, a first position where the receiving side faces upwards for receiving material, and a second position where the receiving side faces downwards for feeding material; and... A transmission device for transmitting parts to be inspected, the transmission device including a feeding end located above the receiving tray; The feeding end is used to feed the parts to be tested onto the receiving tray; The drop test device also includes a sleeve, and the sleeve has a vertically penetrating cavity inside. Correspondingly, the receiving tray is located inside the cylindrical cavity; The upper side of the receiving tray is a concave arc-shaped surface to form the receiving side; The receiving device also includes a drive motor, which is mounted on the mounting frame and its output end is connected to the receiving tray to drive the receiving tray to rotate.

2. The drop test apparatus as described in claim 1, characterized in that, The mounting bracket is also equipped with a detection element on the upper side of the receiving tray, which is used to detect when a part falls onto the receiving tray.

3. The drop test device as described in claim 2, characterized in that, The testing element is arranged in a ring shape to form an inner space on its inner side, which is used for the part to be tested to pass through.

4. The drop test apparatus as described in claim 1, characterized in that, The receiving device is provided in three parts; Correspondingly, the three receiving trays are all located inside the cylinder cavity and are arranged at intervals along the vertical direction; The receiving tray is positioned near the lower opening of the cylinder cavity.

5. The drop test apparatus according to any one of claims 1 to 3, characterized in that, The drop test device also includes a receiving device, which includes a receiving tray located below the receiving tray for receiving parts to be tested that fall from the receiving tray.

6. The drop test apparatus as described in claim 5, characterized in that, The upper side of the storage tray has multiple storage slots in the horizontal direction. The storage tray can move in the horizontal direction so that one of the multiple storage slots is located below the receiving tray.

7. The drop test apparatus according to any one of claims 1 to 3, characterized in that, The transmission device includes: A fixing bracket, connected to the mounting bracket; and, A conveyor belt is mounted on the fixed frame and extends obliquely in the vertical direction to form the feeding end at its upper end. The conveyor belt is used to drive the part to be tested to move along the extension direction of the conveyor belt.

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