Material leakage detection device

Abstract

The utility model discloses a material leakage detection device, which is used for detecting a to-be-detected product clamped by a manipulator, and comprises a substrate positioned below the manipulator and detection assemblies in one-to-one correspondence with to-be-detected nuts on the to-be-detected product. The detection assembly comprises a sleeve, and the sleeve penetrates through the substrate and is fixedly provided with limiting pieces located at the upper end and the lower end of the substrate. The detection sensor can reciprocate along the axis of the sleeve and is connected with a cable penetrating through the sleeve downwards. The elastic piece is located in the sleeve and located below the detection sensor, the elastic piece is used for limiting the detection sensor at a first position when the detection sensor is not jacked, the upper end of the detection sensor protrudes out of the sleeve upwards at the first position, and when the detection sensor is jacked, the detection sensor overcomes the elastic force of the elastic piece and moves downwards. The material leakage detection device can rapidly detect the nuts to be detected at the four corners of the product to be detected.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts processing and testing technology, and in particular to a leakage detection device. Background Technology

[0002] See appendix Figure 4 As shown, nuts should be installed at the four corners of the product under test. However, during the installation process, a nut may be missing or not properly installed. Failure to promptly identify the missing nut will result in defective shipped products. Current technologies typically employ manual inspection to address this issue, which is inefficient. Even some detection devices cannot adequately adapt to the testing of the product, simultaneously checking for the presence and proper vertical positioning of the nut. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a leakage detection device that can quickly detect the nuts at the four corners of the product under test.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a material leakage detection device for detecting a product held by a robotic arm. The material leakage detection device includes a base plate located below the robotic arm and detection components that correspond one-to-one with the nuts to be tested on the product. The detection components include:

[0005] A sleeve passes through a substrate and is fixed with limiting members located at the upper and lower ends of the substrate, and the substrate is clamped between two of the limiting members.

[0006] A detection sensor is provided, which is capable of reciprocating along the axis of the sleeve, and the detection sensor is connected to a cable that passes downward through the sleeve.

[0007] An elastic element is located inside the sleeve and below the detection sensor. The elastic element is used to limit the detection sensor to a first position when the detection sensor is not pressed. The upper end of the detection sensor protrudes upward from the sleeve at the first position. When the detection sensor is pressed, the detection sensor moves downward against the elastic force of the elastic element.

[0008] The beneficial effects of this utility model are as follows:

[0009] An elastic element is incorporated to allow the detection sensor to move up and down, achieving elastic contact between the detection sensor and the nut being tested. In this case, even if the robot arm moves down too much or the position of a nut being tested shifts downward, the detection sensor can still move down under the pressure of the nut being tested, avoiding damage to the nut being tested. The elastic element deforms when the detection sensor moves down, which acts as a reset force for the detection sensor. When the nut being tested is removed, the deformed elastic element can drive the detection sensor to reset quickly.

[0010] Furthermore, the sleeve has a guide groove extending downwards from its upper end. The detection sensor moves up and down along the guide groove, which guides the movement of the detection sensor. A cable channel, penetrating the sleeve, is formed downwards along the bottom of the guide groove, through which the cable passes.

[0011] Furthermore, the elastic element is a compression spring, with its upper end abutting against the lower end of the detection sensor and its lower end abutting against the bottom of the guide groove.

[0012] Furthermore, the limiting component is a locking nut, and the outer surface of the sleeve is provided with external threads that connect with the locking nut. The threaded connection between the locking nut and the sleeve facilitates their disassembly and assembly. The length of the sleeve extending beyond the upper surface of the substrate can be adjusted by the position of the locking nut to accommodate products under test with different testing requirements.

[0013] Furthermore, four nuts to be tested are provided on one of the products under test, arranged in a rectangular pattern. A set of detection components corresponding to the four nuts to be tested forms a detection mechanism. An oblong hole is provided on the base plate for the sleeve to slide, and the oblong hole extends along the diagonal of the rectangle. The position of the detection components can be adjusted through the oblong hole to detect products of different specifications.

[0014] Furthermore, the outer diameter of the locking nut is larger than the width of the waist-shaped hole, so that the substrate can be clamped between the two locking nuts.

[0015] Furthermore, the detection device also includes indicator lights corresponding to the detection mechanism, which can indicate the detection result of a detection mechanism.

[0016] Furthermore, each of the detection sensors is connected to a controller. The detection sensors are resistive sensors that emit a signal when pressure is applied to them. Attached Figure Description

[0017] Figure 1 This is a side view of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a component under test in a first position in an embodiment of the present invention;

[0019] Figure 3 This is a top view of the substrate in an embodiment of the present invention;

[0020] Figure 4 This is a bottom view of the product under test in an embodiment of this utility model.

[0021] In the picture:

[0022] 1. Robotic arm;

[0023] 2. Product to be tested; 21. Nut to be tested;

[0024] 3. Base plate; 31. Waist-shaped hole;

[0025] 4. Detection components;

[0026] 41. Sleeve; 411. Guide groove; 412. Cable channel; 42. Detection sensor; 421. Cable; 43. Elastic element; 44. Limiting element. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0028] The present invention provides a leakage detection device for detecting nuts on the product under test 2, that is, detecting whether a nut is installed at a specified position on the nut 21 under test.

[0029] See appendix Figure 1 As shown, the product under test 2 can be gripped by the robotic arm 1, which can transport the product under test 2 to the location of the leakage detection device for detection. The leakage detection device includes a base plate 3 located below the robotic arm 1 and detection components 4 that correspond one-to-one with the nuts 21 on the product under test 2. Each detection component 4 is used to detect whether there is a nut at the corresponding position and whether the nuts 21 on a product under test 2 are detected simultaneously.

[0030] See appendix Figure 2 As shown, the detection component 4 includes a sleeve 41, a detection sensor 42, and an elastic element 43.

[0031] The sleeve 41 passes through the substrate 3 and is fixed with limiting members 44 located at the upper and lower ends of the substrate 3. The substrate 3 is clamped between the two limiting members 44, and at this time, the sleeve 41 is fixed to the substrate 3 by the limiting members 44. The limiting members 44 and the sleeve 41 are detachably connected, thus realizing the detachable connection between the detection component 4 and the substrate 3.

[0032] The detection sensor 42 is capable of reciprocating along the axis of the sleeve 41, and the detection sensor 42 is connected to a cable 421 that passes downward through the sleeve 41. The cable 421 transmits the signal collected by the detection sensor 42 to an external controller.

[0033] The elastic element 43 is located inside the sleeve 41 and below the detection sensor 42. The elastic element 43 is used to limit the detection sensor 42 to a first position when the detection sensor 42 is not pressed. The upper end of the detection sensor 42 protrudes upward from the sleeve 41 at the first position. When the detection sensor 42 is pressed, the detection sensor 42 moves downward against the elastic force of the elastic element 43.

[0034] The first position is the initial position. When the nut 21 to be tested is not in contact with the detection sensor 42, the detection sensor 42 is limited to the first position by the elastic element 43. At this time, the upper end of the detection sensor 42 extends out of the sleeve 41. When the robot arm 1 moves the product 2 to be tested downward, the nut 21 to be tested can come into contact with the upper end of the detection sensor 42 and be detected by the detection sensor 42.

[0035] In this embodiment, because the robot arm 1 may have some errors when moving downwards, such as moving too far downwards, or because a certain nut 21 on the same product 2 may not be installed correctly, resulting in the nut 21 being too low, the product will still move downwards a small distance after the nut 21 contacts the detection sensor 42. If the detection sensor 42 and the nut 21 are in rigid contact, it may damage the detection sensor 42. Because an elastic element 43 is provided, the detection sensor 42 can move up and down, achieving elastic contact between the detection sensor 42 and the nut 21. At this time, even if the robot arm 1 moves downwards too far or the position of a certain nut 21 is offset downwards, the detection sensor 42 can still move downwards under the pressure of the nut 21, avoiding damage to the detection sensor. The elastic element 43 deforms when the detection sensor 42 moves downwards, which is the reset force stored for the detection sensor 42. When the nut 21 is removed, the deformed elastic element 43 can drive the detection sensor 42 to quickly reset.

[0036] For the same product under test 2, the nuts 21 on it should be at the same height. This requires the detection sensor 42 that detects the same product under test 2 to detect the nuts 21 at the same time for the product under test 2 to be qualified.

[0037] See appendix Figure 2As shown, the sleeve 41 has a guide groove 411 extending downwards from its upper end, and the detection sensor 42 moves up and down along the guide groove 411. To prevent the detection sensor 42 from sliding out of the upper opening of the guide groove 411, the sleeve 41 has a limiting ring at the opening of the guide groove 411 that fits around the detection sensor 42. The detection sensor 42 includes a protruding ring corresponding to and located below the limiting ring. Through the cooperation of the limiting ring and the protruding ring, the detection sensor 42 can be effectively prevented from detaching from the guide groove 411.

[0038] A cable channel 412 is formed downwards along the bottom of the guide groove 411, penetrating the sleeve 41, and the cable 421 passes through the cable channel 412. The cable 421 needs to be connected to an external controller, hence the cable channel 412. In one embodiment, the detection sensor 42 can also be wirelessly connected to the controller, in which case there is no need to provide a cable channel 412 on the sleeve 41.

[0039] In one embodiment, the elastic element 43 is a compression spring, with its upper end abutting against the lower end of the detection sensor 42 and its lower end abutting against the bottom of the guide groove 411. In the first position, the detection sensor 42 is in its natural state, and as the detection sensor 42 moves downward, the compression spring is continuously compressed.

[0040] In some embodiments, the elastic element 43 may also be an elastic rubber element or the like, as long as the elastic element 43 can be compressed and has a restoring elastic force.

[0041] In one embodiment, the limiting member 44 is a locking nut, and the outer surface of the sleeve 41 is provided with external threads that are threadedly connected to the locking nut. By unscrewing the locking nut from the sleeve 41, the sleeve 41 can be removed from the substrate 3. Simultaneously, adjusting the height of the locking nut on the sleeve 41 adjusts the length of the sleeve 41 extending beyond the upper surface of the substrate 3, which in turn adjusts the height of the upper end of the detection sensor 42 to accommodate test products 2 of different heights.

[0042] See appendix Figure 4 As shown, four test nuts 21 are provided on one of the test products 2 and are arranged in a rectangular shape. The detection components 4 corresponding to the four test nuts 21 form a set of detection mechanisms.

[0043] Product 2 under test may vary in size depending on its model; that is, the rectangular structure is the same, but the dimensions differ. For testing of different specifications of Product 2 under test, please refer to the appendix. Figure 3 As shown, the substrate 3 has an oblong hole 31 for the sleeve 41 to slide, and the oblong hole 31 extends along the diagonal of the rectangle.

[0044] The outer diameter of the locking nut is larger than the width of the waist-shaped hole 31, so that the substrate 3 can be clamped between the two locking nuts.

[0045] In one embodiment, the testing device further includes indicator lights corresponding to the testing organization. The indicator lights can indicate the testing results of a testing organization. For example, when a testing organization detects that a product 2 to be tested is qualified, the indicator light turns green; when the product 2 to be tested is unqualified, the indicator light turns red.

[0046] The detection sensor 42 is a resistive sensor that emits a signal when pressure is applied. The controller receives the signal and combines it with the timing of the signal emitted by a detection mechanism to determine whether the products 2 to be tested are qualified.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A leakage detection device for detecting products held by a robotic arm, characterized in that: The leakage detection device includes a base plate located below the robotic arm and detection components that correspond one-to-one with the nuts to be tested on the product to be tested. The detection components include: A sleeve passes through a substrate and is fixed with limiting members located at the upper and lower ends of the substrate, and the substrate is clamped between two of the limiting members. A detection sensor is provided, which is capable of reciprocating along the axis of the sleeve, and the detection sensor is connected to a cable that passes downward through the sleeve. An elastic element is located inside the sleeve and below the detection sensor. The elastic element is used to limit the detection sensor to a first position when the detection sensor is not pressed. The upper end of the detection sensor protrudes upward from the sleeve at the first position. When the detection sensor is pressed, the detection sensor moves downward against the elastic force of the elastic element.

2. The leakage detection device according to claim 1, characterized in that: The sleeve has a guide groove extending downwards from its upper end. The detection sensor moves up and down along the guide groove. A cable channel extending through the sleeve is formed along the bottom of the guide groove, and the cable passes through the cable channel.

3. The leakage detection device according to claim 2, characterized in that: The elastic element is a compression spring, with its upper end abutting against the lower end of the detection sensor and its lower end abutting against the bottom of the guide groove.

4. The leakage detection device according to any one of claims 1-3, characterized in that: The limiting component is a locking nut, and the outer surface of the sleeve is provided with an external thread that is threaded to the locking nut.

5. The leakage detection device according to claim 4, characterized in that: The product under test has four nuts arranged in a rectangular pattern. The detection components corresponding to the four nuts under test form a detection mechanism. The substrate has a waist-shaped hole for the sleeve to slide through, and the waist-shaped hole extends along the diagonal of the rectangle.

6. The leakage detection device according to claim 5, characterized in that: The outer diameter of the locking nut is larger than the width of the waist-shaped hole.

7. The leakage detection device according to claim 5, characterized in that: The detection device also includes indicator lights corresponding to the detection mechanism.

8. The leakage detection device according to claim 1, characterized in that: Each of the detection sensors is connected to a controller. The detection sensors are resistive sensors that emit a signal when pressure is applied to them.

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