Air tightness testing apparatus and connector production line

Abstract

The utility model discloses a kind of air-tightness detection equipment and connector production line, air-tightness detection equipment includes feed module, water hole detection module, air-tightness detection module and feeding roller;Water hole detection module is located at the downstream of feed module, and water hole detection module is suitable for detecting the conduction state of water hole;Air-tightness detection module is located at the downstream of water hole detection module;Feeding roller is connected in feed module, water hole detection module and air-tightness detection module, and feeding roller is equipped with placing groove, and placing groove is suitable for placing at least part connector;By feeding roller connection feed module, water hole detection module and air-tightness detection module, connector automatic detection is realized;And carry out water hole detection before air-tightness detection, preposition screening of part defect, improve equipment operating efficiency;Still utilize the mode of feeding roller rotation feeding, make full use of the space of feeding roller circumferential and reduce the occupied area of air-tightness detection equipment in horizontal direction.

Description

Technical Field

[0001] This utility model relates to the technical field of connector testing equipment, and in particular to an airtightness testing device and a connector production line. Background Technology

[0002] In automotive cleaning systems (such as high-pressure cleaning equipment and coolant circulation lines), the sealing performance of the connectors directly affects the reliability and safety of the system operation. Currently, connector airtightness testing is mainly performed manually by placing the connectors into airtightness testing fixtures, which is inefficient.

[0003] To address the aforementioned issues, existing technologies have proposed a solution using a conveyor mechanism to transfer the connector to an airtightness testing fixture. However, this solution suffers from a large structural volume, low space utilization, and can only perform airtightness testing on the connector, limiting the testing scope. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an airtightness testing device and a connector production line, which can achieve automated connector testing by connecting a feeding module, a water passage hole detection module, and an airtightness testing module through a feeding roller; and performs water passage hole detection before airtightness testing, thus pre-screening some defects and improving equipment operating efficiency; furthermore, it utilizes the rotating feeding roller to fully utilize the circumferential space of the feeding roller, reducing the horizontal area occupied by the airtightness testing device.

[0005] On one hand, this utility model embodiment provides an airtightness testing device for testing the airtightness of a connector, wherein the connector is provided with a through water passage hole, including:

[0006] Material feeding module;

[0007] A water passage detection module is located downstream of the feeding module, and the water passage detection module is adapted to detect the conduction status of the water passage.

[0008] An airtightness detection module is located downstream of the water passage detection module;

[0009] The feeding roller is connected to the feeding module, the water passage detection module and the air tightness detection module. The feeding roller is provided with a placement groove, which is suitable for placing at least part of the connector.

[0010] According to some embodiments of the present invention, the airtightness detection module includes a detection seat and a first moving module. The detection seat is provided with a detection groove, which is suitable for the connector to be inserted. The detection seat is adapted to move along the extension direction of the placement groove under the drive of the first moving module, so that the groove wall of the detection groove and the groove wall of the placement groove respectively press against the two ends of the connector to seal the water passage hole.

[0011] The detection tank has air holes in its wall that connect to an external air source, and the air holes are adapted to communicate with the water passage holes.

[0012] According to some embodiments of the present invention, the airtightness testing device further includes an NG unloading frame, the opening of which is located below the feeding roller;

[0013] The airtightness detection module further includes a pressure detection module, a pressure head, and a pressure head drive. The pressure head is connected to the detection seat and located on one side of the opening of the detection groove. The pressure head is adapted to move towards the opening of the detection groove under the drive of the pressure head drive to press against the connector. The detection end of the pressure detection module is adapted to communicate with the water passage hole to detect the pressure change inside the water passage hole.

[0014] According to some embodiments of the present invention, the airtightness testing device further includes an OK unloading frame, the airtightness testing module further includes a second moving module, and the testing seat is adapted to move along a first direction under the drive of the second moving module, the first direction being set at an angle to the extension direction of the placement groove;

[0015] The NG unloading frame and the OK unloading frame are sequentially arranged along the first direction.

[0016] According to some embodiments of the present invention, the water passage detection module includes a telescopic top rod, the telescopic direction of which is the same as the extension direction of the placement groove, and is suitable for insertion into the water passage.

[0017] According to some embodiments of the present invention, the feeding roller is provided with at least one set of placement grooves, the set of placement grooves includes a plurality of placement grooves, and the plurality of placement grooves in each set of placement grooves are arranged around the rotation axis of the feeding roller.

[0018] According to some embodiments of the present invention, the feeding module includes a vibrating feeding plate and a linear feeding track. The discharge port of the feeding plate is connected to the placement groove through the linear feeding track, and the linear feeding track is configured to correspond one-to-one with the placement groove group.

[0019] According to some embodiments of the present invention, the feeding module further includes a vibration module, and the linear feeding track is adapted to vibrate under the drive of the vibration module so that the connector carried by the linear feeding track moves along the extension direction of the linear feeding track.

[0020] According to some embodiments of the present invention, the feeding module further includes a material sensing frame and a material sensing module. The material sensing frame spans across the linear feeding track, and the material sensing module is installed on the material sensing frame. The material sensing module is arranged in a one-to-one correspondence with the linear feeding track and is suitable for sensing the connector in the linear feeding track.

[0021] On the other hand, this utility model embodiment also provides a connector production line, including the airtightness testing equipment as described above.

[0022] The present invention has at least the following beneficial effects: the feeding roller connects the feeding module, the water hole detection module, and the airtightness detection module to achieve automated detection of the connector; and the water hole detection module is used to detect the water hole before the airtightness detection, thus pre-screening some defects and improving equipment operating efficiency without the need for manual screening; furthermore, the feeding roller is used to rotate and feed the material, so that the feeding module, the water hole detection module, and the airtightness detection module are distributed around the circumference of the feeding roller, making full use of the circumferential space of the feeding roller and effectively reducing the horizontal area occupied by the airtightness detection equipment.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of the airtightness testing device according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0027] Figure 3 This is a top view of the airtightness testing device according to an embodiment of the present invention;

[0028] Figure 4 This is a side view of the airtightness testing device according to an embodiment of the present utility model;

[0029] Figure 5 for Figure 4 A magnified view of part B in the middle;

[0030] Figure 6 This is a schematic diagram of the air tightness detection module of the air tightness detection device according to an embodiment of the present invention.

[0031] Figure label:

[0032] 100. Feeding module; 110. Vibrating feeder; 120. Linear feeding track; 130. Vibration module; 140. Material sensing rack; 150. Material sensing module;

[0033] 200. Water passage hole detection module; 210. Top rod;

[0034] 300. Air tightness detection module; 310. Detection seat; 311. Detection slot; 320. First moving module; 330. Press head; 340. Press head drive component; 350. Pressure detection module; 360. Second moving module;

[0035] 400. Feeding roller; 410. Placement trough assembly; 411. Placement trough;

[0036] 510, NG blanking frame; 520, OK blanking frame. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0041] Please refer to Figure 1 and Figure 2 As shown, in one aspect, this utility model embodiment provides an airtightness testing device for testing the airtightness of a connector. The connector has a through water passage hole. The airtightness testing device includes a feeding module 100, a water passage hole detection module 200, an airtightness testing module 300, and a feeding roller 400. The water passage hole detection module 200 is located downstream of the feeding module 100 and is adapted to detect the conduction state of the water passage hole. The airtightness testing module 300 is located downstream of the water passage hole detection module 200. The feeding roller 400 is connected to the feeding module 100, the water passage hole detection module 200, and the airtightness testing module 300. The feeding roller 400 has a placement groove 411, which is adapted to place at least part of the connector.

[0042] According to the airtightness testing device of this utility model embodiment, the connector in the feeding module 100 is fed into the placement groove 411 of the feeding roller 400. As the feeding roller 400 rotates, the connector in the placement groove 411 passes through the water passage detection module 200 for water passage detection and the airtightness detection module 300 for airtightness detection in sequence.

[0043] It should be noted that existing technologies also propose a technical solution that uses a conveyor mechanism to transfer the connector to the airtightness testing fixture. Typically, a conveyor belt is used for transport, and the airtightness testing mechanism and the appearance inspection mechanism need to be arranged along the conveyor belt's transport direction, resulting in a large volume occupied in the horizontal direction and low utilization of the space above the conveyor belt. Furthermore, only the airtightness of the connector is tested, and the water passages inside the connector are usually inspected manually, which is inefficient.

[0044] According to the airtightness testing equipment of this utility model embodiment, the feeding module 100, the water passage hole detection module 200, and the airtightness testing module 300 are connected by a feeding roller 400 to achieve automated testing of the connector; and the water passage hole detection module 200 is used to detect water passage hole defects before airtightness testing, thus pre-screening water passage hole conduction defects and improving equipment operating efficiency without the need for manual screening; and the feeding roller 400 is used to rotate and feed the material, so that the feeding module 100, the water passage hole detection module 200, and the airtightness testing module 300 are distributed around the circumference of the feeding roller 400, making full use of the circumferential space of the feeding roller 400 and effectively reducing the horizontal area occupied by the airtightness testing equipment.

[0045] In some embodiments, combined with Figures 1 to 3 , Figure 6 As shown, the airtightness detection module 300 includes a detection seat 310 and a first moving module 320. The detection seat 310 is provided with a detection groove 311, which is suitable for inserting a connector. The detection seat 310 is suitable for moving along the extension direction of the placement groove 411 under the drive of the first moving module 320, so that the groove wall of the detection groove 311 and the groove wall of the placement groove 411 respectively press against the two ends of the connector to seal the water passage hole. The groove wall of the detection groove 311 is provided with an air hole for communicating with an external air source, and the air hole is suitable for communicating with the water passage hole.

[0046] In this embodiment, the feeding roller 400 rotates until the placement groove 411 is aligned with the detection groove 311. The first moving module 320 drives the detection seat 310 to move so that the detection groove 311 is fitted onto the connector until the groove wall of the detection groove 311 and the groove wall of the placement groove 411 respectively press against the two ends of the connector to seal the water passage holes. An external air source injects gas into the sealed water passage holes through the air hole to test the air tightness of the connector.

[0047] In this embodiment, the sealing of the water passage hole is achieved by the cooperation of the feeding roller 400 and the detection seat 310. Compared with the traditional air tightness detection mechanism that requires a base and pressure head, the feeding roller 400 integrates the conveying function and the support function of the base, making the air tightness detection equipment smaller in size and eliminating the need for an additional handling mechanism (such as a robot) to transfer the connector, thus effectively improving the connector detection efficiency.

[0048] In this embodiment, the first moving module 320 is a cylinder; in other embodiments, it can also be a lead screw module, a slide module, etc.

[0049] In other embodiments, the airtightness testing device may also adopt the conventional method of base and pressure head cooperation as described above, and additionally set a handling mechanism to handle the connecting head.

[0050] In some embodiments, combined with Figure 3 and Figure 6 As shown, the airtightness testing equipment also includes an NG unloading frame 510, the opening of which is located below the loading roller 400; the airtightness testing module 300 also includes a pressure testing module 350, a pressing head 330, and a pressing head drive 340. The pressing head 330 is connected to the testing seat 310 and located on one side of the slot opening of the testing groove 311. The pressing head 330 is adapted to move towards the slot opening of the testing groove 311 under the drive of the pressing head drive 340 to press against the connector; the testing end of the pressure testing module 350 is adapted to communicate with the water passage hole to detect the pressure change inside the water passage hole.

[0051] In this embodiment, when the pressure detection module 350 detects a qualified result, the pressure head drive 340 drives the pressure head 330 to press against the connector, and the feeding roller 400 continues to rotate so that the qualified connector is removed from the feeding roller 400 and remains on the detection seat 310; when the pressure detection module 350 detects a failed result, the first moving module 320 moves the detection seat 310 away from the feeding roller 400, and the failed connector remains on the feeding roller 400. The feeding roller 400 continues to rotate until the connector falls into the NG unloading frame 510 under the action of gravity.

[0052] In this embodiment, the use of the pressing head 330 in conjunction with the NG unloading frame 510 clearly distinguishes between qualified and unqualified connectors, preventing material mixing. The NG unloading frame 510, located below the feeding roller 400, effectively utilizes the gravity of the connector itself, enabling the recycling of unqualified connectors without the need for an additional handling mechanism.

[0053] In this embodiment, the pressure head drive component 340 is a cylinder; in other embodiments, it can also be a lead screw module, a slide module, etc.

[0054] In this embodiment, the airtightness testing device also includes a main control circuit board, which is communicatively connected to the first moving module 320, the pressure head drive component 340, the feeding roller 400, and the pressure detection module 350 to realize the aforementioned control process.

[0055] In some embodiments, combined with Figure 3 As shown, the airtightness testing equipment also includes an OK unloading frame 520, and the airtightness testing module 300 also includes a second moving module 360. The testing seat 310 is adapted to move along a first direction (Y direction in the figure) under the drive of the second moving module 360. The first direction is set at an angle to the extension direction of the placement groove 411. The NG unloading frame 510 and the OK unloading frame 520 are arranged sequentially along the first direction.

[0056] In this embodiment, as mentioned above, when the pressure detection module 350 detects a qualified result, the pressure head drive 340 drives the pressure head 330 to press against the connector. The feeding roller 400 continues to rotate, causing the qualified connector to detach from the feeding roller 400 and remain on the detection seat 310. The detection seat 310 moves along the first direction under the drive of the second moving module 360 ​​until the connector is above the OK unloading frame 520. The pressure head 330 releases the connector, and the connector falls into the OK unloading frame 520. The OK unloading frame 520 collects the qualified connectors to avoid mixing, eliminating the need for an additional handling mechanism and reducing the size of the equipment.

[0057] In some embodiments, combined with Figure 1 and Figure 2As shown, the water passage detection module 200 includes a telescopic push rod 210. The telescopic direction of the push rod 210 is the same as the extension direction of the placement groove 411, and it is suitable for insertion into the water passage.

[0058] In this embodiment, if the push rod 210 is obstructed during its insertion into the water passage hole, it indicates that the connector is unqualified. It is understandable that, since the push rod 210 has a certain pushing force, the burrs inside the water passage hole can be repaired under the action of the push rod 210, thereby improving the qualification rate of the connector.

[0059] In other embodiments, the through-hole detection device may also employ a vision inspection module, an infrared emitter, or other equipment suitable for detecting the diameter and permeability of water passages.

[0060] In some embodiments, combined with Figure 1 and Figure 2 As shown, the feeding roller 400 is provided with at least one placement groove group 410, which includes multiple placement grooves 411. The multiple placement grooves 411 of each placement groove group 410 are arranged around the rotation axis of the feeding roller 400. The multiple placement grooves 411 in one placement groove group 410 allow the feeding process of the feeding module 100, the detection process of the water passage detection module 200, and the detection process of the airtightness detection module 300 within the airtightness testing equipment to be performed simultaneously, improving detection efficiency. Furthermore, the arrangement of multiple placement groove groups 410 allows the airtightness testing equipment to simultaneously detect multiple connectors, also improving detection efficiency.

[0061] In this embodiment, the feeding roller 400 is provided with eight placement slot groups 410, and each placement slot group 410 is provided with four placement slots 411 evenly distributed around the rotation axis of the feeding roller 400. In other embodiments, the number of placement slots 411 included in each placement slot group 410 is adaptively adjusted to accommodate different numbers of modules around the feeding roller 400 (e.g., an appearance inspection module may be added). The number of placement slot groups 410 can be adjusted based on the number of connectors that need to be inspected simultaneously.

[0062] In some embodiments, combined with Figure 1 , Figure 4 and Figure 5 As shown, the feeding module 100 includes a vibrating feeding plate 110 and a linear feeding track 120. The discharge port of the feeding plate is connected to the placement trough 411 through the linear feeding track 120. The linear feeding track 120 and the placement trough 410 are arranged in a one-to-one correspondence. The vibrating feeding plate 110 vibrates the connectors one by one into the linear feeding track 120, and the connectors are sequentially fed along the linear feeding track 120 to the feeding roller 400. The linear feeding track 120 ensures that the connectors can fall stably into the placement trough 411 one by one, preventing the connectors from falling off.

[0063] In this embodiment, two vibrating feeding discs 110 are provided, each of which has four linear feeding tracks 120, for a total of eight linear feeding tracks 120 that connect with eight sets of placement slots 410 on the feeding roller 400. In other embodiments, the specific number can be adjusted based on actual needs.

[0064] In some embodiments, combined with Figure 4 and Figure 5 As shown, the feeding module 100 also includes a vibration module 130. The linear feeding track 120 is adapted to vibrate under the drive of the vibration module 130, so that the connector carried by the linear feeding track 120 moves along the extension direction of the linear feeding track 120. By adjusting the vibration frequency and intensity of the vibration module 130, the moving speed of the connector on the linear feeding track 120 can be adjusted to adapt to the conveying of different types of connectors, and the feeding rhythm can be adjusted based on the rhythm of the downstream process to improve detection efficiency.

[0065] In other embodiments, the linear feeding track 120 can also be tilted (at a certain angle to the horizontal plane), so that the connector moves along the linear feeding track 120 under its own gravity, thus saving costs.

[0066] In some embodiments, combined with Figure 4 and Figure 5 As shown, the feeding module 100 also includes a material sensing frame 140 and a material sensing module 150. The material sensing frame 140 spans above the linear feeding track 120, and the material sensing module 150 is installed on the material sensing frame 140. The material sensing module 150 is configured in a one-to-one correspondence with the linear feeding track 120, and is suitable for sensing the connectors in the linear feeding track 120. In this embodiment, the material sensing module 150 is used to determine whether there are connectors in the linear feeding track 120, preventing the airtightness testing equipment from running empty due to the absence of connectors in the linear feeding track 120.

[0067] In this embodiment, the material sensing module 150 may be a visual inspection module, an infrared emitter, an acoustic emitter, etc.

[0068] On the other hand, this utility model embodiment also provides a connector production line, including the airtightness testing equipment as described in the above embodiment.

[0069] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An airtightness testing device for testing the airtightness of a connector, wherein the connector is provided with a through water passage hole, characterized in that, include: Material feeding module (100); A water passage detection module (200) is located downstream of the feeding module (100), and the water passage detection module (200) is adapted to detect the conduction status of the water passage; An airtightness detection module (300) is located downstream of the water passage detection module (200); The feeding roller (400) is connected to the feeding module (100), the water hole detection module (200) and the air tightness detection module (300). The feeding roller (400) is provided with a placement groove (411), which is suitable for placing at least part of the connector.

2. The airtightness testing device according to claim 1, characterized in that, The airtightness detection module (300) includes a detection seat (310) and a first moving module (320). The detection seat (310) is provided with a detection groove (311). The detection groove (311) is adapted to insert the connector. The detection seat (310) is adapted to move along the extension direction of the placement groove (411) under the drive of the first moving module (320), so that the groove wall of the detection groove (311) and the groove wall of the placement groove (411) respectively press against the two ends of the connector to seal the water passage hole. The detection tank (311) has an air hole in its wall that connects to an external air source, and the air hole is adapted to communicate with the water passage hole.

3. The airtightness testing device according to claim 2, characterized in that, The airtightness testing equipment also includes an NG unloading frame (510), the opening of which is located below the loading roller (400); The airtightness detection module (300) further includes a pressure detection module (350), a pressure head (330), and a pressure head drive (340). The pressure head (330) is connected to the detection seat (310) and located on one side of the opening of the detection groove (311). The pressure head (330) is adapted to move towards the opening of the detection groove (311) under the drive of the pressure head drive (340) to press against the connector. The detection end of the pressure detection module (350) is adapted to communicate with the water passage hole to detect the pressure change inside the water passage hole.

4. The airtightness testing device according to claim 3, characterized in that, The airtightness testing device also includes an OK unloading frame (520), and the airtightness testing module (300) also includes a second moving module (360). The testing seat (310) is adapted to move along a first direction under the drive of the second moving module (360), and the first direction is set at an angle to the extension direction of the placement slot (411). The NG unloading frame (510) and the OK unloading frame (520) are sequentially arranged along the first direction.

5. The airtightness testing device according to claim 1, characterized in that, The water passage detection module (200) includes a telescopic top rod (210), the telescopic direction of which is the same as the extension direction of the placement groove (411), and is suitable for insertion into the water passage.

6. The airtightness testing device according to any one of claims 1 to 5, characterized in that, The feeding roller (400) is provided with at least one placement groove group (410), the placement groove group (410) includes a plurality of placement grooves (411), and the plurality of placement grooves (411) of each placement groove group (410) are arranged around the rotation axis of the feeding roller (400).

7. The airtightness testing device according to claim 6, characterized in that, The feeding module (100) includes a vibrating feeding plate (110) and a linear feeding track (120). The discharge port of the feeding plate is connected to the placement slot (411) through the linear feeding track (120). The linear feeding track (120) and the placement slot group (410) are set in a one-to-one correspondence.

8. The airtightness testing device according to claim 7, characterized in that, The feeding module (100) further includes a vibration module (130), and the linear feeding track (120) is adapted to vibrate under the drive of the vibration module (130) so that the connector carried by the linear feeding track (120) moves along the extension direction of the linear feeding track (120).

9. The airtightness testing device according to claim 7, characterized in that, The feeding module (100) further includes a material sensing frame (140) and a material sensing module (150). The material sensing frame (140) spans across the linear feeding track (120), and the material sensing module (150) is installed on the material sensing frame (140). The material sensing module (150) is arranged in a one-to-one correspondence with the linear feeding track (120) and is suitable for sensing the connector in the linear feeding track (120).

10. A connector production line, characterized in that, Includes the airtightness testing device as described in any one of claims 1 to 9.

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