Charging gun head air tightness testing machine

Abstract

This utility model discloses a charging gun head airtightness testing machine, including a frame, a control box, a positioning device, an up-and-down drive device, a front-and-back drive device, indicator lights, and a two-hand switch. Multiple positioning devices are arranged horizontally on the frame, each with a positioning groove. A first sealing block is moved up and down by the up-and-down drive device and has a vent. A second sealing block is moved back and forth by the front-and-back drive device. The second sealing block, the positioning groove, the charging gun head, and the first sealing block cooperate to form a sealed space, which is connected to the vent. Multiple indicator lights correspond to their respective positioning grooves. This charging gun head airtightness testing machine can perform airtightness tests on multiple charging gun heads at once. It is simple to operate, replaces manual labor with machines, shortens testing time, improves testing efficiency, is more suitable for large-scale production, reduces production costs, brings convenience to production, and meets current needs.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing equipment, and in particular to an airtightness testing machine for a charging gun head. Background Technology

[0002] With the continuous development of society and the economy, more and more mechanical equipment is being manufactured and widely used in agriculture, industry, and service industries. Mechanical equipment comes in a wide variety of types, and has undergone further innovation to meet different needs, playing an indispensable role in people's work and life; mechanical equipment is ubiquitous.

[0003] The internal structure of mechanical equipment is becoming increasingly complex, and its functions are becoming more and more diverse, and it is constantly being improved. Mechanical equipment generally includes drive devices, speed change devices, transmission devices, working devices, braking devices, protective devices, lubrication devices, cooling devices, etc., and different devices play different roles in mechanical equipment.

[0004] The electric vehicle industry is developing rapidly, and new energy vehicles are becoming increasingly popular, making our lives more and more convenient. The charging gun is the charging interface for electric vehicles. By connecting the charging gun to the electric vehicle, the battery is charged, enabling the vehicle to continue driving. During the production process of the charging gun, the charging gun head needs to undergo an airtightness test to ensure its waterproof and dustproof performance and safety in use, thus guaranteeing product reliability.

[0005] In existing technologies, the airtightness test of the charging gun head is generally performed manually. A custom mold equipped with an air pump and pressure gauge is plugged into the opening of the charging gun head. The air pump is started to inflate the head, and inflation is stopped once the pressure gauge reaches the target value. The pressure gauge readings are observed and recorded over a certain period to determine the airtightness of the charging gun head (no change in pressure indicates good airtightness, while a change indicates leakage). This testing method is cumbersome, time-consuming, inefficient, and has low yield, making it unsuitable for large-scale production. It also incurs high production costs and inconveniences, failing to meet current needs. Therefore, it is necessary to research a new technical solution to improve upon these problems. Utility Model Content

[0006] In view of this, the present invention addresses the shortcomings of the existing technology and its main purpose is to provide a charging gun head airtightness testing machine. It can effectively solve the problems of the existing technology, which involves many steps, is cumbersome, requires a long testing time, has low testing efficiency, low output, is not suitable for large-scale production, has high production costs, and brings inconvenience to production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A charging gun head airtightness testing machine includes a frame, a control box, a positioning device, an up-and-down drive device, a front-and-back drive device, indicator lights, and a two-hand switch. The control box is mounted on the frame. Multiple positioning devices are arranged horizontally on the frame, each with a positioning groove for positioning the charging gun head, the groove being compatible with the charging gun head. The up-and-down drive device is mounted on the frame and located above the multiple positioning devices. The up-and-down drive device is electrically connected to the control box and has a first sealing block that moves up and down with the drive device. The first sealing block has a vent for connecting an external air pipe, which is connected to an external airtightness testing instrument. Multiple front-and-back drive devices are mounted on the frame and positioned at different locations. At the rear of the corresponding positioning device, multiple front and rear drive devices are electrically connected to the control box. Each front and rear drive device is equipped with a second sealing block, which is driven back and forth by the front and rear drive devices. The second sealing block, together with the positioning groove, the charging gun head, and the first sealing block, forms a sealed space, which is connected to the vent. There are multiple indicator lights, which are arranged horizontally on the frame and each indicator light corresponds to a corresponding positioning groove. The multiple indicator lights are electrically connected to the control box. The two-hand switch is set on the frame and located in front of the multiple positioning devices. The two-hand switch is electrically connected to the control box. The two-hand switch requires the operator to use both hands to operate the equipment. The two-hand switch effectively improves the safety performance during use, prevents accidental touch or accidental start-up that may be caused by single-handed operation of the equipment, and significantly reduces the risk of safety accidents.

[0009] As a preferred embodiment, the up-and-down driving device includes a bracket, a first track, a first cylinder, and a first slider. The bracket is mounted on a frame, the first track extends longitudinally on the bracket, the first cylinder is mounted on the bracket and electrically connected to a control box, the first slider is located at the output end of the first cylinder and is driven by the first cylinder to move up and down along the first track, and the first sealing block is mounted on the first slider.

[0010] As a preferred embodiment, the front and rear drive device includes a second track, a second cylinder, and a second slider. The second track extends front and rear on the frame and is located behind the corresponding positioning device. The second cylinder is located on the frame and behind the second track. The second cylinder is electrically connected to the control box. The second slider is located at the output end of the second cylinder and is driven by the second cylinder to move back and forth along the second track. The second sealing block is located on the second slider.

[0011] As a preferred embodiment, the bottom surface of the first sealing block is provided with an arc-shaped groove, which is connected to the positioning groove.

[0012] As a preferred embodiment, a circular sealing ring is provided on the front side of the second sealing block, which effectively enhances the sealing performance and improves the sealing quality.

[0013] As a preferred embodiment, the positioning groove includes a first groove and a second groove. The second groove is disposed on the front side of the first groove and communicates with the first groove. The bottom surface of the second groove is lower than the bottom surface of the first groove, and the length of the second groove is greater than the length of the first groove. The structure is simple and can effectively position the charging gun head, making it easy to pick up and put down, thus bringing convenience to production.

[0014] As a preferred embodiment, the plurality of indicator lights includes a plurality of OK indicator lights and a plurality of NG indicator lights. The plurality of OK indicator lights and the plurality of NG indicator lights are electrically connected to the control box. The plurality of OK indicator lights are arranged horizontally on the frame, and the plurality of NG indicator lights are respectively arranged below or above the corresponding OK indicator lights. Each OK indicator light and its corresponding NG indicator light are set as a group.

[0015] As a preferred embodiment, there are four positioning devices arranged horizontally on the frame, each with two positioning slots. There are also two vertical drive devices arranged horizontally side-by-side on the frame, above the four positioning devices. Both drive devices are electrically connected to the control box, and each drive device has two first sealing blocks and two vents. There are also four front-rear drive devices arranged horizontally side-by-side on the frame, each located behind its corresponding positioning device, and all four are electrically connected to the control box. Eight indicator lights are arranged horizontally on the frame, each corresponding to a positioning slot, and all eight are electrically connected to the control box. A two-hand switch is located on the front of the four positioning devices, enabling simultaneous detection of eight charging gun heads, effectively improving detection efficiency.

[0016] As a preferred embodiment, the bottom of the frame is provided with multiple support columns, which effectively enhances the stability of the structure.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0018] Multiple positioning devices are arranged horizontally on a frame, each with a positioning groove for positioning the charging gun head. A vertical drive device is mounted on the frame above the positioning devices. A first sealing block is moved up and down by the vertical drive device and has a vent for connecting to an external air pipe. Multiple front and rear drive devices are mounted on the frame, each located behind its corresponding positioning device. A second sealing block is moved back and forth by the front and rear drive devices. The second sealing block, together with the positioning groove, charging gun head, and first sealing block, forms a sealed space. The sealed space is connected to the vent. Multiple indicator lights are arranged horizontally on the frame, each corresponding to a positioning slot. The two-hand switch is located on the frame in front of the multiple positioning devices. The up-down drive device, the front-back drive device, the indicator lights, the two-hand switch, and the control box are electrically connected. This type of charging gun head airtightness testing machine can perform airtightness testing on multiple charging gun heads at once. It has fewer steps, is simple to operate, replaces manual labor with machines, shortens testing time, greatly improves testing efficiency, increases output, is more suitable for large-scale production, reduces production costs, brings convenience to production, and meets current needs.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;

[0022] Figure 3 This is a partial structural schematic diagram of a preferred embodiment of the present utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the first sealing block in a preferred embodiment of the present invention.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10. Frame 11. Support column

[0026] 20. Control box; 30. Positioning device

[0027] 31. Positioning groove 311. First groove

[0028] 312, Second groove 40, Up and down drive device

[0029] 41. First sealing block; 411. Vent.

[0030] 412, Arc-shaped groove; 42, Bracket

[0031] 43. First track 44. First cylinder

[0032] 45. First slider; 50. Front and rear drive device

[0033] 51. Second sealing block; 511. Circular sealing ring

[0034] 52. Second track 53. Second cylinder

[0035] 54. Second slider; 60. Indicator light

[0036] 61. OK indicator light 62. NG indicator light

[0037] 70. Two-hand switch; 80. Charging gun head. Detailed Implementation

[0038] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a frame 10, a control box 20, a positioning device 30, a vertical drive device 40, a front and rear drive device 50, an indicator light 60, and a two-hand switch 70.

[0039] The control box 20 is mounted on the frame 10; in this embodiment, the bottom of the frame 10 is provided with multiple support columns 11, which effectively enhances the stability of the structure.

[0040] Multiple positioning devices 30 are arranged horizontally on the frame 10. Each positioning device 30 has a positioning groove 31 for positioning the charging gun head 80, which is adapted to the charging gun head 80. In this embodiment, the positioning groove 31 includes a first groove 311 and a second groove 312. The second groove 312 is located in front of the first groove 311 and communicates with the first groove 311. The bottom surface of the second groove 312 is lower than the bottom surface of the first groove 311, and the length of the second groove 312 is greater than the length of the first groove 311. The structure is simple and can position the charging gun head 80 well, making it easy to pick up and put down, and bringing convenience to production. Four positioning devices 30 are arranged horizontally on the frame 10, and each positioning device 30 has two positioning grooves 31.

[0041] The up-and-down driving device 40 is mounted on the frame 10 and located above the multiple positioning devices 30. The up-and-down driving device 40 is electrically connected to the control box 20. A first sealing block 41 is mounted on the up-and-down driving device 40, and the first sealing block 41 is driven to move up and down. The first sealing block 41 has a vent 411 for connecting to an external air pipe, which is connected to an external airtightness detector. In this embodiment, the up-and-down driving device 40 includes a bracket 42, a first track 43, a first cylinder 44, and a first slider 45. The bracket 42 is mounted on the frame 10, the first track 43 extends longitudinally on the bracket 42, and the first cylinder 44 is mounted on the bracket. The first slider 45 is located on the first slide block 42 and electrically connected to the control box 20. The first slider 45 is located at the output end of the first cylinder 44 and is driven by the first cylinder 44 to move up and down along the first track 43. The first sealing block 41 is located on the first slider 45. The bottom surface of the first sealing block 41 is provided with an arc-shaped groove 412, which is connected to the positioning groove 31. There are two up and down driving devices 40. The two up and down driving devices 40 are arranged horizontally side by side on the frame 10 and located above the four positioning devices 30. Both up and down driving devices 40 are electrically connected to the control box 20. Each up and down driving device 40 is provided with two first sealing blocks 41, and each first sealing block 41 is provided with two vents 411.

[0042] There are multiple front and rear drive devices 50, which are mounted on the frame 10 and located behind the corresponding positioning devices 30. The multiple front and rear drive devices 50 are electrically connected to the control box 20. Each front and rear drive device 50 is equipped with a second sealing block 51, which moves back and forth driven by the front and rear drive device 50. The second sealing block 51, together with the positioning groove 31, the charging gun head 80, and the first sealing block 41, forms a sealed space, which is connected to the vent 411. In this embodiment, the front and rear drive device 50 includes a second track 52, a second cylinder 53, and a second slider 54. The second track 52 extends forward and backward on the frame 10 and is located behind the corresponding positioning device 30. The second cylinder 53 is located on the frame 10 and behind the second track 52. The second cylinder 53 is electrically connected to the control box 20. The second slider 54 is located at the output end of the second cylinder 53 and is driven by the second cylinder 53 to move back and forth along the second track 52. The second sealing block 51 is located on the second slider 54. The front side of the second sealing block 51 is provided with a circular sealing ring 511, which effectively enhances the sealing performance and improves the sealing quality. There are four front and rear drive devices 50. The four front and rear drive devices 50 are arranged horizontally side by side on the frame 10 and are located behind the corresponding positioning devices 30. All four front and rear drive devices 50 are electrically connected to the control box 20.

[0043] There are multiple indicator lights 60, which are arranged horizontally on the frame 10 and each indicator light 60 corresponds to a corresponding positioning slot 31. The multiple indicator lights 60 are electrically connected to the control box 20. In this embodiment, the multiple indicator lights 60 include multiple OK indicator lights 61 and multiple NG indicator lights 62. Both the multiple OK indicator lights 61 and the multiple NG indicator lights 62 are electrically connected to the control box 20. The multiple OK indicator lights 61 are arranged horizontally on the frame 10, and the multiple NG indicator lights 62 are respectively located below or above the corresponding OK indicator lights 61. Each OK indicator light 61 and its corresponding NG indicator light 62 are set as a group. There are also eight indicator lights 60, which are arranged horizontally on the frame 10 and each of the eight indicator lights 60 corresponds to a corresponding positioning slot 31. All eight indicator lights 60 are electrically connected to the control box 20.

[0044] The two-hand switch 70 is mounted on the frame 10 and located in front of the multiple positioning devices 30. The two-hand switch 70 is electrically connected to the control box 20. The two-hand switch 70 requires the operator to use both hands simultaneously for operation. The two-hand switch 70 effectively improves the safety performance during use, prevents accidental activation or accidental start-up that may be caused by single-handed operation of the equipment, and significantly reduces the risk of safety accidents. In this embodiment, the two-hand switch 70 is mounted in front of the four positioning devices 30.

[0045] The working process of this embodiment is described in detail below:

[0046] First, connect one end of the external air tube to the external air tightness tester, and then connect the other end of the external air tube to the vent 411 on the first sealing block 41 of the charging gun head air tightness tester. Repeat the above steps to install multiple external air tubes. Next, place the eight charging gun heads 80 to be tested into the corresponding positioning slots 31 on the positioning device 30. Then, press the two-hand switch 70 with both hands to start the machine. The control box 20 controls the up-down drive device 40 to move the first sealing block 41 downward and press it against the charging gun head 80. The control box 20 controls the front-back drive device 50 to move the second sealing block 51 forward and press it against the opening of the charging gun head 80. After pressing it into place, the second sealing block 51... Block 51, together with positioning groove 31, charging gun head 80, and first sealing block 41, forms a sealed space. An external airtightness tester pressurizes the gas using the pressure decay method, thereby performing an airtightness test on the charging gun head 80 (the test meets the IPX8 waterproof rating requirement). When the charging gun head 80 passes the test, the corresponding OK indicator light 61 illuminates; when the charging gun head 80 fails the test, the corresponding NG indicator light 62 illuminates and is accompanied by a buzzer alarm sound. After the test is completed, the machine is started, the up-down drive device 40 moves the first sealing block 41 upward, and the front-back drive device 50 moves the second sealing block 51 backward, allowing the tested charging gun head 80 to be removed.

[0047] This charging gun head airtightness testing machine can perform airtightness tests on eight charging gun heads at a time, which can effectively improve testing efficiency and is suitable for large-scale production.

[0048] The key design feature of this utility model is:

[0049] Multiple positioning devices are arranged horizontally on a frame, each with a positioning groove for positioning the charging gun head. A vertical drive device is mounted on the frame above the positioning devices. A first sealing block is moved up and down by the vertical drive device and has a vent for connecting to an external air pipe. Multiple front and rear drive devices are mounted on the frame, each located behind its corresponding positioning device. A second sealing block is moved back and forth by the front and rear drive devices. The second sealing block, together with the positioning groove, charging gun head, and first sealing block, forms a sealed space. The sealed space is connected to the vent. Multiple indicator lights are arranged horizontally on the frame, each corresponding to a positioning slot. The two-hand switch is located on the frame in front of the multiple positioning devices. The up-down drive device, the front-back drive device, the indicator lights, the two-hand switch, and the control box are electrically connected. This type of charging gun head airtightness testing machine can perform airtightness testing on multiple charging gun heads at once. It has fewer steps, is simple to operate, replaces manual labor with machines, shortens testing time, greatly improves testing efficiency, increases output, is more suitable for large-scale production, reduces production costs, brings convenience to production, and meets current needs.

[0050] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A charging gun head airtightness testing machine, characterized in that: The system includes a frame, a control box, positioning devices, a vertical drive mechanism, a front-rear drive mechanism, indicator lights, and a two-hand switch. The control box is mounted on the frame. Multiple positioning devices are arranged horizontally on the frame, each with a positioning groove for positioning the charging gun head, which is compatible with the charging gun head. The vertical drive mechanism is mounted on the frame above the positioning devices and is electrically connected to the control box. Each vertical drive mechanism has a first sealing block that moves up and down with the vertical drive mechanism, and it has a vent for connecting to an external air pipe. Multiple front-rear drive mechanisms are also included. The front and rear drive units are mounted on the frame, and multiple front and rear drive units are located behind the corresponding positioning devices. The multiple front and rear drive units are electrically connected to the control box. Each front and rear drive unit is equipped with a second sealing block. The second sealing block is driven back and forth by the front and rear drive units. The second sealing block, together with the positioning groove, the charging gun head, and the first sealing block, forms a sealed space. The sealed space is connected to the vent. There are multiple indicator lights, which are arranged horizontally on the frame and correspond to the corresponding positioning grooves. The multiple indicator lights are electrically connected to the control box. The two-hand switch is mounted on the frame and located in front of the multiple positioning devices. The two-hand switch is electrically connected to the control box.

2. The charge gun head airtightness test machine of claim 1, wherein: The up-and-down driving device includes a bracket, a first track, a first cylinder, and a first slider. The bracket is mounted on the frame, the first track extends longitudinally on the bracket, the first cylinder is mounted on the bracket and electrically connected to the control box, the first slider is mounted at the output end of the first cylinder and is driven by the first cylinder to move up and down along the first track, and the first sealing block is mounted on the first slider.

3. The charge gun head airtightness test machine of claim 1, wherein: The front and rear drive device includes a second track, a second cylinder, and a second slider. The second track extends forward and backward on the frame and is located behind the corresponding positioning device. The second cylinder is located on the frame and behind the second track. The second cylinder is electrically connected to the control box. The second slider is located at the output end of the second cylinder and is driven by the second cylinder to move back and forth along the second track. The second sealing block is located on the second slider.

4. The charge gun head airtightness testing machine of claim 1, wherein: The bottom surface of the first sealing block is provided with an arc-shaped groove, which is connected to the positioning groove.

5. The charge gun head airtightness testing machine of claim 1, wherein: A circular sealing ring is provided on the front side of the second sealing block.

6. The charge gun head airtightness testing machine of claim 1, wherein: The positioning groove includes a first groove and a second groove. The second groove is disposed on the front side of the first groove and communicates with the first groove. The bottom surface of the second groove is lower than the bottom surface of the first groove, and the length of the second groove is greater than the length of the first groove.

7. The charge gun head airtightness testing machine of claim 1, wherein: The multiple indicator lights include multiple OK indicator lights and multiple NG indicator lights. The multiple OK indicator lights and multiple NG indicator lights are electrically connected to the control box. The multiple OK indicator lights are arranged horizontally on the frame, and the multiple NG indicator lights are respectively located below or above the corresponding OK indicator lights.

8. The charge gun head air tightness testing machine of claim 1, wherein: The system comprises four positioning devices arranged horizontally on the frame, each with two positioning slots. It also comprises two vertical drive devices arranged horizontally side-by-side on the frame, above the four positioning devices. Both drive devices are electrically connected to the control box, and each drive device has two first sealing blocks with two vents. Furthermore, it comprises four front-rear drive devices arranged horizontally side-by-side on the frame, each located behind its corresponding positioning device. All four drive devices are electrically connected to the control box. Eight indicator lights are arranged horizontally on the frame, each corresponding to a positioning slot, and all eight are electrically connected to the control box. A two-hand switch is located on the front of the four positioning devices.

9. The charge gun head airtightness testing machine of claim 1, wherein: The bottom of the frame is equipped with multiple support columns.

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