Air distribution valve testing device

Abstract

The application belongs to the technical field of detection, and particularly relates to an air distribution valve detection device, which comprises a detection head with a pair of mutually separated conductive probes, the opposite side of the conductive probes is provided with an insulating layer, and the conductive probes are connected with a detection circuit; a fixing mechanism comprising a tray for fixing the air distribution valve; a jacking mechanism arranged below the detection head and configured to jack the tray towards the detection head; and a clamping mechanism comprising a pressing plate between the jacking mechanism and the detection head, the pressing plate is provided with a through hole matched with the joint of the air distribution valve. Advantageous effects: the application can effectively and automatically detect whether the air distribution valve is installed with a snap spring by arranging a pair of mutually separated conductive probes to extend into the corresponding joint of the air distribution valve clamped between the jacking mechanism and the clamping mechanism, the detection efficiency is high, and the qualified rate of products leaving the factory is ensured.

Description

Technical Field

[0001] This application belongs to the field of testing technology, and in particular relates to an air distribution valve testing device. Background Technology

[0002] Air distribution valves can distribute gas into different channels, supplying gas to different systems or equipment, thus enabling efficient gas utilization. To facilitate connection between the air distribution valve and the client, a C-type metal retainer needs to be installed inside the valve's connector. However, during production, it's inevitable that some retainers may be missing, leading to connection failures during use. Utility Model Content

[0003] To address the technical problems existing in the prior art, this application provides an air distribution valve detection device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is an air distribution valve detection device, comprising:

[0005] The detection head has a pair of separate conductive probes, each having an insulating layer on its opposite side, and the conductive probes are connected to a detection circuit.

[0006] The fixing mechanism includes a tray for fixing the air distribution valve;

[0007] A lifting mechanism, located below the detection head, is configured to lift the tray toward the detection head;

[0008] The clamping mechanism includes a pressure plate located between the lifting mechanism and the detection head, the pressure plate having a through hole that matches the air distribution valve connector.

[0009] In some embodiments, the detection head further includes a pair of opposing clamps, each clamp having a mounting groove for mounting the conductive probe, the conductive probe extending out of the clamp at one end toward the lifting mechanism.

[0010] In some embodiments, the end of the clamp away from the lifting mechanism has a terminal slot, one end of the conductive probe is provided with a connection terminal, the connection terminal is installed in the terminal slot, the clamp is provided with a cover plate covering the terminal slot, the cover plate, the connection terminal and the clamp are provided with corresponding fixing holes, one side of the cover plate is provided with a connection groove communicating with the terminal slot, and the wiring terminal of the detection circuit is installed in the connection groove and connected to the connection terminal.

[0011] In some embodiments, the detection head is connected to a three-dimensional moving mechanism.

[0012] In some embodiments, the lifting mechanism includes a lifting cylinder and a lifting plate fixed to the output end of the lifting cylinder. The lifting plate is provided with a positioning pin, and the bottom of the tray has a positioning hole that matches the positioning pin.

[0013] In some embodiments, the clamping mechanism includes a telescopic cylinder and a connecting plate connected to the output end of the telescopic cylinder, the connecting plate being perpendicular to the telescopic direction of the output end of the telescopic cylinder, and the pressure plate being connected to the connecting plate.

[0014] In some embodiments, an adjusting plate is fixedly connected to one end of the pressure plate, and a sliding groove is provided at the bottom of the adjusting plate. The adjusting plate is slidably disposed on the end of the connecting plate near the pressure plate through the sliding groove. A waist-shaped groove is provided on the adjusting plate, and a locking nut connects the adjusting plate to the connecting plate through the waist-shaped groove.

[0015] In some embodiments, the connecting plate is provided with a fixing plate, and the fixing plate is provided with an adjusting bolt, one end of which is connected to the adjusting plate.

[0016] In some embodiments, a conveying mechanism is further included, which is configured to convey the pallet above the lifting mechanism; the conveying mechanism is also provided with a stop mechanism located on one side of the lifting mechanism.

[0017] In some embodiments, the conductive probe has a probe head at one end, and the probe head has a structure with a larger size in the middle and a gradually decreasing size at both ends.

[0018] Beneficial effects: This application sets up a pair of separate conductive probes that extend into the connector corresponding to the air distribution valve clamped between the lifting mechanism and the clamping mechanism. If the connector has a C-shaped metal snap ring, the two separate conductive probes will contact the snap ring and conduct, and the detection circuit will be in a conductive state. If the snap ring is missing from the connector, the two conductive probes and the detection circuit will remain in an open circuit state. This allows for effective automated detection of whether the air distribution valve has a snap ring installed, resulting in high detection efficiency and ensuring the product's factory pass rate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the detection device structure;

[0020] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the conductive probe and the clamp;

[0022] Figure 4 This is a schematic diagram of the lifting mechanism.

[0023] Figure 5 Schematic diagram of the clamping mechanism

[0024] In the diagram: 1. Detection head, 11. Conductive probe, 111. Connecting terminal, 112. Detection head, 12. Clamp, 121. Mounting slot, 122. Terminal slot, 13. Cover plate, 131. Connecting slot, 132. Fixing hole, 2. Lifting mechanism, 21. Lifting cylinder, 22. Lifting plate, 23. Positioning pin, 3. Clamping mechanism, 31. Pressure plate, 32. Telescopic cylinder, 321. Fixing seat, 33. Connecting plate, 331. Fixing plate, 332. Adjusting bolt, 34. Adjusting plate, 341. Waist-shaped groove, 35. Guide plate, 4. Conveying mechanism, 5. Stopping mechanism, 101. X-axis moving mechanism, 102. Y-axis moving mechanism, 103. Z-axis moving mechanism. Detailed Implementation

[0025] The present application will be further described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without making creative changes are within the protection scope of the present application.

[0026] like Figure 1 and 2 As shown, the air distribution valve detection device provided in this application includes a pair of mutually separated conductive probes 11. Each conductive probe 11 has an insulating layer on one side. The conductive probes 11 are connected to a detection circuit (not shown in the figure). When the two mutually separated conductive probes 11 are connected, the detection circuit is also connected. Typically, the inner wall of the air distribution valve connector is made of plastic, which does not cause the conductive probes 11 to conduct. However, when both conductive probes 11 are in contact with the C-shaped metal retainer inside the connector, the two mutually separated conductive probes 11 are electrically connected, thereby detecting whether a C-shaped metal retainer is installed inside the connector. The conductive probes 11 are made of a metal material with a certain degree of elasticity.

[0027] To facilitate the fixing of the distribution valve, the detection device also has a fixing mechanism, including a tray (not shown in the figure) for fixing the air distribution valve. The air distribution valve is fixedly installed on the tray and can move with the tray. In some embodiments, a conveying mechanism 4 is used to convey the tray, so as to realize the automatic conveying of the air distribution valve with the tray.

[0028] like Figure 1As shown, a lifting mechanism 2 is provided below the detection head 1. The lifting mechanism 2 can lift the tray toward the detection head 1, thereby lifting the air distribution valve to a position closer to the detection head 1 for easy detection. To ensure that the tray and the air distribution valve on it can be stably placed on the lifting mechanism 2, the detection device also includes a clamping mechanism 3. The clamping mechanism 3 includes a pressure plate 31 located between the lifting mechanism 2 and the detection head 1. The pressure plate 31 has a through hole that matches the air distribution valve connector. The pressure plate 31 can press down the air distribution valve on the lifting mechanism 2 to fix its position and prevent the tray and the air distribution valve from moving. The through hole avoids the connector on the air distribution valve, allowing the conductive probe 11 to extend into the connector for effective detection.

[0029] like Figure 2 and 3 As shown, to facilitate the installation of the conductive probe 11, in some embodiments, the detection head 1 further includes a pair of opposing clamps 12. Each clamp 12 has a mounting groove 121 for mounting the conductive probe 11, and one end of the conductive probe 11 extending towards the lifting mechanism 2 extends outside the clamp 12. Specifically, the opposing surfaces of the two conductive probes 11 are flat, and the opposing surfaces are arc-shaped. The arc-shaped surfaces of the conductive probes 11 are fitted into the mounting grooves 121. To prevent the two conductive probes 11 from contacting each other and causing direct conduction of the detection circuit, an insulating layer is provided on the opposing planes of the two probes, so that even if the two conductive probes 11 contact each other, the detection circuit will not be connected.

[0030] To facilitate the connection of the conductive probe 11 to the detection circuit, in some embodiments, such as Figure 3 As shown, the end of the clamp 12 away from the lifting mechanism 2 has a terminal slot 122. One end of the conductive probe 11 is provided with a connecting terminal 111, which is installed within the terminal slot 122. A cover plate 13 is provided on the clamp 12 to cover the terminal slot 122. Corresponding fixing holes 132 are provided on the cover plate 13, the connecting terminal 111, and the clamp 12. A connecting groove 131 communicating with the terminal slot 122 is provided on one side of the cover plate 13. The wiring terminal of the detection circuit is installed in the connecting groove 131 and connected to the connecting terminal 111. The cover plate 13 not only presses the connecting terminal 111 tightly and fixes it in the terminal slot 122 on the clamp 12 through the fixing holes 132, thereby fixing the conductive probe 11 on the clamp 12, but also allows the wiring terminal of the detection circuit to extend directly through the connecting groove 131 to the connecting terminal 111 in the terminal slot 122, which facilitates the connection between the conductive probe 11 and the detection circuit.

[0031] like Figure 1As shown, in order to adjust the position of the detection head 1, in some embodiments, the detection head 1 is connected to a three-dimensional moving mechanism. In one embodiment, the three-dimensional moving mechanism specifically includes an X-axis moving mechanism 101, a Y-axis moving mechanism 102 connected to the output end of the X-axis moving mechanism 101, and a Z-axis moving mechanism 103 connected to the output end of the Y-axis moving mechanism 102. The detection head 1 is installed at the output end of the Z-axis moving mechanism 103, thereby realizing the movement of the detection head 1 in three-dimensional space. When the lifting mechanism 2 lifts the tray containing the air distribution valve to a predetermined height, and the clamping mechanism 3 clamps and fixes the air distribution valve and the tray between the pressure plate 31 and the lifting mechanism 2, the X-axis moving mechanism 101 and the Y-axis moving mechanism 102 of the three-dimensional moving mechanism drive the conductive probe 11 to be directly above the air distribution valve. Then, the Z-axis moving mechanism 103 is activated, so that the conductive probe 11 can be inserted into the connector of the air distribution valve for detection.

[0032] like Figure 1 and 2 As shown, in some embodiments, multiple Z-axis moving mechanisms 103 can be installed at the output end of the Y-axis moving mechanism 102, and a detection head 1 is installed at the output end of each Z-axis moving mechanism 103, thereby simultaneously detecting multiple connectors on the air distribution valve, or simultaneously detecting multiple gas distribution valves. Figure 1 and 2 As shown, it is equipped with two Z-axis moving mechanisms 103 and two detection heads 1, which can simultaneously detect the two joints of the gas distribution valve.

[0033] like Figure 4 As shown, specifically, in some embodiments, the lifting mechanism 2 includes a lifting cylinder 21 and a lifting plate 22 fixed to the output end of the lifting cylinder 21. The lifting plate 22 is provided with a positioning pin 23, and the bottom of the tray has a positioning hole that matches the positioning pin 23. To avoid the movement of the tray on the conveying mechanism 4 being affected by the lifting plate 22, when the lifting cylinder 21 is in its initial position, i.e., when the height of the lifting plate 22 is at its lowest, the height of the lifting plate 22 should be lower than the height of the tray on the conveying mechanism 4. When the tray moves above the lifting plate 22, the lifting cylinder 21 lifts the lifting plate 22, causing the positioning pin 23 on the lifting plate 22 to insert into the positioning hole on the tray, thereby lifting the tray together with the air distribution valve. The cooperation between the tray and the lifting plate 22 is simple. Setting the top of the positioning pin 23 as a conical structure can play a guiding role, making it easier for the positioning pin 23 to insert into the positioning hole on the tray. Even if the positioning plate is slightly off-center, the effective cooperation between the positioning pin 23 and the positioning hole can still be achieved.

[0034] like Figure 5As shown, specifically, in some embodiments, the clamping mechanism 3 includes a telescopic cylinder 32 and a connecting plate 33 connected to the output end of the telescopic cylinder 32. The connecting plate 33 is perpendicular to the telescopic direction of the output end of the telescopic cylinder 32, and the pressure plate 31 is connected to the connecting plate 33. When the lifting mechanism 2 lifts the tray and its air distribution valve to a predetermined height, the output end of the telescopic cylinder 32 retracts, thereby driving the connecting plate 33 and the pressure plate 31 to descend, pressing the pressure plate 31 against the air distribution valve on the tray to clamp the air distribution valve and prevent displacement during the testing process. Since the connecting plate 33 is perpendicular to the telescopic direction of the telescopic cylinder 32 and has a certain length, in one embodiment, a guide plate 35 is slidably arranged on the fixed seat 321 on which the telescopic cylinder 32 is installed, and the connecting plate 33 is fixedly connected to the guide plate 35. Thus, the guide plate 35 has a supporting and guiding effect on the lifting and lowering movement of the pressure plate 31 driven by the connecting plate 33, improving the stability of the lifting and lowering of the pressure plate 31.

[0035] like Figure 5 As shown, to facilitate the adjustment of the position of the pressure plate 31, in some embodiments, an adjusting plate 34 is fixedly connected to one end of the pressure plate 31. The bottom of the adjusting plate 34 is provided with a sliding groove, and the adjusting plate 34 is slidably disposed on the end of the connecting plate 33 near the pressure plate 31 via the sliding groove. The adjusting plate 34 is provided with a waist-shaped groove 341, and a locking nut (not shown in the figure) connects the adjusting plate 34 to the connecting plate 33 through the waist-shaped groove 341. The design of the waist-shaped groove 341 allows for adjustment of the position of the adjusting plate 34 on the connecting plate 33, thereby adjusting the position of the pressure plate 31, ensuring that the pressure plate 31 corresponds to the position of the air distribution valve, and preventing misalignment between the two.

[0036] like Figure 5 As shown, in order to achieve fine-tuning of the position of the pressure plate 31, in some embodiments, a fixing plate 331 is provided on the connecting plate 33, and an adjusting bolt 332 is provided on the fixing plate 331. One end of the adjusting bolt 332 is connected to the adjusting plate 34. In some cases, the waist-shaped groove 341 and the locking nut cannot guarantee the accuracy of the adjustment of the position of the pressure plate 31, while the adjusting bolt 332 can be used to fine-tune the position of the pressure plate 31, improve the accuracy of the pressure plate 31, and make the pressure plate 31 precisely match the position of the air distribution valve on the tray.

[0037] To ensure that the pallet stops at the designated position on the conveying mechanism 4, in some embodiments, the conveying mechanism 4 is configured to transport the pallet above the lifting mechanism 2. The conveying mechanism 4 is also equipped with a stop mechanism 5, located on one side of the lifting mechanism 2. Specifically, the stop mechanism 5 includes a stop cylinder and a stop plate mounted on the stop cylinder. The stop cylinder drives the stop plate to rise and fall. When the conveying mechanism 4 moves the pallet to a predetermined position, the stop cylinder drives the stop plate to rise, thus blocking the pallet and preventing it from being transported further forward. After inspection, when the pallet falls back onto the conveying mechanism 4, the stop cylinder drives the stop plate to fall below the pallet, allowing the pallet to be transported to the next workstation by the conveying mechanism 4.

[0038] like Figure 3 As shown, in some embodiments, the conductive probe 11 has a probe head 112 at one end, which has a structure with a larger size in the middle and a gradually decreasing size at both ends. As shown in the figure, the middle part of the bottom of the probe head 112 has a larger size, which facilitates contact with the snap ring inside the connector, and guide slopes are formed on both sides of it to facilitate the connection of the air distribution valve connector.

[0039] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this application.

Claims

1. An air distribution valve detection device, characterized in that, include The detection head (1) has a pair of mutually separated conductive probes (11), each conductive probe (11) having an insulating layer on its opposite side, and the conductive probes (11) being connected to the detection circuit; The fixing mechanism includes a tray for fixing the air distribution valve; A lifting mechanism (2), located below the detection head (1), is configured to lift the tray toward the detection head (1); The clamping mechanism (3) includes a pressure plate (31) located between the lifting mechanism (2) and the detection head (1), the pressure plate (31) having a through hole that matches the air distribution valve connector.

2. The air distribution valve detection device according to claim 1, characterized in that, The detection head (1) further includes a pair of clamps (12) arranged opposite to each other, the clamps (12) having mounting grooves (121) for mounting the conductive probe (11), the conductive probe (11) extending to the outside of the clamps (12) at one end toward the lifting mechanism (2).

3. The air distribution valve detection device according to claim 2, characterized in that, The clamp (12) has a terminal slot (122) at one end away from the lifting mechanism (2). The conductive probe (11) has a connection terminal (111) at one end. The connection terminal (111) is installed in the terminal slot (122). The clamp (12) has a cover plate (13) covering the terminal slot (122). The cover plate (13), the connection terminal (111) and the clamp (12) have corresponding fixing holes (132). The cover plate (13) has a connection slot (131) on one side that communicates with the terminal slot (122). The terminal of the detection circuit is installed in the connection slot (131) and connected to the connection terminal (111).

4. The air distribution valve detection device according to any one of claims 1 to 3, characterized in that, The detection head (1) is connected to the three-dimensional moving mechanism.

5. The air distribution valve detection device according to claim 1, characterized in that, The lifting mechanism (2) includes a lifting cylinder (21) and a lifting plate (22) fixed at the output end of the lifting cylinder (21). The lifting plate (22) is provided with a positioning pin (23), and the bottom of the tray has a positioning hole that matches the positioning pin (23).

6. The air distribution valve detection device according to claim 1, characterized in that, The clamping mechanism (3) includes a telescopic cylinder (32) and a connecting plate (33) connected to the output end of the telescopic cylinder (32). The connecting plate (33) is perpendicular to the telescopic direction of the output end of the telescopic cylinder (32), and the pressure plate (31) is connected to the connecting plate (33).

7. The air distribution valve detection device according to claim 6, characterized in that, One end of the pressure plate (31) is fixedly connected to an adjusting plate (34). The bottom of the adjusting plate (34) is provided with a sliding groove. The adjusting plate (34) is slidably disposed on the end of the connecting plate (33) near the pressure plate (31) through the sliding groove. The adjusting plate (34) is provided with a waist-shaped groove (341). The locking nut connects the adjusting plate (34) to the connecting plate (33) through the waist-shaped groove (341).

8. The air distribution valve detection device according to claim 7, characterized in that, A fixing plate (331) is provided on the connecting plate (33), and an adjusting bolt (332) is provided on the fixing plate (331). One end of the adjusting bolt (332) is connected to the adjusting plate (34).

9. The air distribution valve detection device according to claim 1, characterized in that, It also includes a conveying mechanism (4) configured to convey the pallet above the lifting mechanism (2); the conveying mechanism (4) is also provided with a stop mechanism (5) located on one side of the lifting mechanism (2).

10. The air distribution valve detection device according to any one of claims 1 to 3, characterized in that, The conductive probe (11) has a probe head (112) at one end, and the probe head (112) has a structure with a larger size in the middle and a gradually decreasing size at both ends.

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