Air tightness detection device for gear flow sensor

Abstract

The utility model relates to an air tightness detection device for a gear flow sensor. The air tightness detection device comprises a fixing assembly and a detection assembly, the fixing assembly is provided with a clamping station used for fixing a gear sensor. The detection assembly comprises a pushing piece, a connector and an air pump, the output end of the pushing piece is connected with the connector, and the air outlet end of the air pump is communicated with the air inlet cavity; the gear sensor to be detected is placed on the clamping station of the fixing assembly to be fixed, the pushing piece can drive the connector to move till the connector moves to the position where the connector is connected with the connector of the gear sensor in a sealed mode, at the moment, the air inlet cavity of the connector communicates with the interior of the gear sensor, the air pump works, air is output to the gear sensor, and then the gear sensor is detected. The air pressure in the gear sensor is kept for a certain time after reaching a preset value, if the air pressure in the gear sensor has no obvious change, the air tightness of the gear sensor is good, and the device can replace manual detection of the air tightness of the gear sensor, and is high in detection efficiency and time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of gear position sensor technology, and in particular to a gear position flow sensor air tightness detection device. Background Technology

[0002] During the manufacturing process of the gear position sensor, the upper and lower housings are welded together. However, there may be instances where the heat-fused joints are not tightly connected. This allows external moisture to easily enter the gear position sensor during subsequent use, thus affecting its lifespan. Therefore, the upper and lower housings need to undergo an airtightness test after welding.

[0003] Currently, the traditional testing method is manual inspection. Specifically, the air pump connector is connected to the interface of the gear position sensor, and a pressure test is performed on the gear position sensor. If the pressure value inside the gear position sensor does not change within a certain period of time, it indicates that the airtightness of the gear position sensor is good; otherwise, the gear position sensor is judged to be a defective product.

[0004] However, manual inspection is inefficient, time-consuming, and labor-intensive. Utility Model Content

[0005] In view of this, it is necessary to provide a gear position flow sensor air tightness detection device to solve the problems of low efficiency, time and labor costs associated with manually detecting the air tightness of gear position sensors.

[0006] This utility model provides an airtightness detection device for a gear position flow sensor, including a fixing component and a detection component; the fixing component is provided with a snap-fit ​​station for fixing the gear position sensor; the detection component includes a pusher, a connector and an air pump, the output end of the pusher is connected to the connector for driving the connector to move in a direction close to or away from the snap-fit ​​station, the connector can be sealed to the interface of the gear position sensor, and the interior of the connector forms an air inlet chamber that communicates with the interior of the gear position sensor, and the outlet end of the air pump is connected to the air inlet chamber.

[0007] Furthermore, the fixing component includes a worktable and two stops. The two stops are opposite to each other and fixedly disposed on the top of the worktable. The shapes of the opposite sides of the two stops are respectively adapted to the shapes of the two sides of the gear position sensor, and a fixed gap is formed between the two stops for fixing the gear position sensor.

[0008] Furthermore, the fixing assembly also includes two pressure sensors, which are respectively disposed on opposite sides of the two stops, and the detection heads of the two pressure sensors pass through the two stops and extend into the fixing gap.

[0009] Furthermore, the two pressure sensors are slidably connected to the corresponding side of the stop along the direction of approaching or moving away from the stop.

[0010] Furthermore, the detection heads of the two pressure sensors are positioned diagonally across the fixed gap.

[0011] Furthermore, the air pump is connected to the connector via a hose.

[0012] Furthermore, the detection component also includes a pressure sensor, which is fixedly connected to the connector. The detection end of the pressure sensor is located in the air intake chamber, and the display end of the pressure sensor is located outside the air intake chamber.

[0013] Furthermore, the device also includes a pressing assembly having a pressing end that moves in a vertical direction, the pressing end being positioned above the snap-fit ​​station.

[0014] Furthermore, the device also includes a frame and a protective cover. The top of the frame is fixedly connected to the protective cover, and a detection cavity is formed between the frame and the protective cover. The side wall of the protective cover has an opening that communicates with the detection cavity. The fixing component and the detection component are both mounted on the frame.

[0015] Furthermore, the device also includes a platform, which is detachably connected to the frame near the opening. The fixing component is mounted on the platform, and the detection component is mounted on the frame.

[0016] Compared with existing technologies, this method involves placing the gear position sensor to be tested on the snap-fit ​​station of the fixing component for fixation. The pusher can move the connector until it reaches the position where it is sealed to the interface of the gear position sensor. At this time, the air inlet chamber of the connector is connected to the inside of the gear position sensor, the air pump works, and outputs gas to the gear position sensor until the air pressure inside the gear position sensor reaches a preset value and is maintained for a certain period of time. If there is no significant change in the air pressure inside the gear position sensor after a certain period of time, it indicates that the air tightness of the gear position sensor is good. This device can replace the manual work of checking the air tightness of the gear position sensor, with high detection efficiency and saving time and effort. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the gear flow sensor air tightness detection device provided in the embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0019] Figure 3 This is a schematic diagram of the detection component in the gear flow sensor air tightness detection device provided in this embodiment of the utility model. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1-3 As shown, the present invention provides an airtightness detection device for a gear position flow sensor, including a fixing component 100 and a detection component 200; the fixing component 100 is provided with a snap-fit ​​station for fixing the gear position sensor M; the detection component 200 includes a pusher 210, a connector 220 and an air pump 230, the output end of the pusher 210 is connected to the connector 220, and is used to drive the connector 220 to move in a direction close to or away from the snap-fit ​​station, the connector 220 can be sealed to the interface M1 of the gear position sensor M, and the interior of the connector 220 forms an air inlet chamber that communicates with the interior of the gear position sensor M, and the outlet end of the air pump 230 is connected to the air inlet chamber.

[0022] The gear position sensor M to be tested is placed on the snap-fit ​​station of the fixing component 100 for fixation. The pusher 210 can drive the connector 220 to move until the connector 220 moves to the position where it is sealed to the interface M1 of the gear position sensor M. At this time, the air inlet chamber of the connector 220 is connected to the inside of the gear position sensor M. The air pump 230 works and outputs gas to the gear position sensor M until the air pressure inside the gear position sensor M reaches the preset value and is maintained for a certain period of time. If there is no significant change in the air pressure inside the gear position sensor M after a certain period of time, it indicates that the air tightness of the gear position sensor M is good. This device can replace the manual work of testing the air tightness of the gear position sensor M, with high testing efficiency and saving time and effort.

[0023] In this embodiment, the gear position sensor M to be detected can be effectively fixed by the fixing component 100.

[0024] In one embodiment, the fixing component 100 includes a worktable 110 and two stops 120. The two stops are opposite to each other and fixedly disposed on the top of the worktable 110. The shapes of the opposite sides of the two stops 120 are respectively adapted to the shapes of the two sides of the gear position sensor M. A fixing gap is formed between the two stops 120 for fixing the gear position sensor M.

[0025] Understandably, the distance between the two stops 120 should be slightly greater than the width of the gear position sensor M in order to place the gear position sensor M in a fixed gap.

[0026] To ensure the correct placement of the gear position sensor M, and to ensure that the interface M1 of the gear position sensor M, placed in the fixed gap, is aligned with the connector 220, in this embodiment, the fixing assembly 100 further includes two pressure sensors 130. The two pressure sensors 130 are respectively disposed on opposite sides of the two stops 120, and the detection heads of the two pressure sensors 130 pass through the two stops 120 and extend into the fixed gap. The two pressure sensors 130 are slidably connected to the corresponding stop 120 along the direction of approaching or moving away from the stop 120. The detection heads of the two pressure sensors 130 are located diagonally across the fixed gap.

[0027] The detection heads of the two pressure sensors 130 on both sides abut against the two sides of the gear position sensor M. When the pressures fed back by the two pressure sensors 130 are vertically equal, it can be determined that the gear position sensor M has been installed.

[0028] After adjusting the position of the gear position sensor M relative to the connector 220 in the horizontal plane, it is necessary to further fix the gear position sensor M. In this embodiment, the device also includes a pressing component 300, which has a pressing end that moves in the vertical direction and is located above the snap-fit ​​station.

[0029] In one embodiment, the pressing assembly 300 includes a stand and a pressing cylinder. The pressing cylinder is connected to the stand and suspended above a fixed gap, with its bottom forming a pressing end. It is understood that multiple pressing cylinders can be used, evenly arranged circumferentially along the fixed gap. The pressing position sensor M is positioned so that it is tightly attached to the worktable 110.

[0030] After the gear position sensor M is fixed, the air tightness of the gear position sensor M needs to be tested by the detection component 200 in this embodiment. The pusher 210 can drive the connector 220 to move until the connector 220 moves to the position where it is sealed to the interface M1 of the gear position sensor M. At this time, the air inlet chamber of the connector 220 is connected to the inside of the gear position sensor M. The air pump 230 works and outputs gas to the gear position sensor M until the air pressure inside the gear position sensor M reaches the preset value and is maintained for a certain period of time. If the air pressure inside the gear position sensor M does not change significantly after a certain period of time, it indicates that the air tightness of the gear position sensor M is good.

[0031] The jacking component 210 can be implemented using a linear motor, hydraulic cylinder, or other similar structures.

[0032] In this embodiment, the air pump 230 is fixed, and the connector 220 is movable relative to the air pump 230. Therefore, in this embodiment, the air pump 230 is connected to the connector 220 via a hose.

[0033] To facilitate knowing the air pressure inside the gear position sensor M, in one embodiment, the detection assembly 200 further includes an air pressure sensor 240, which is fixedly connected to the connector 220. The detection end of the air pressure sensor 240 is located in the air intake chamber, and the display end of the air pressure sensor 240 is located outside the air intake chamber.

[0034] In this embodiment, the device further includes a frame 400 and a protective cover 500. The top of the frame 400 is fixedly connected to the protective cover 500. A detection cavity is formed between the frame 400 and the protective cover 500. The side wall of the protective cover 500 has an opening that communicates with the detection cavity. The fixing component 100 and the detection component 200 are both disposed on the frame 400.

[0035] To accommodate gear position sensors M of different sizes and models, in one embodiment, the device further includes a platform 410, which is detachably connected to the frame 400 near the opening. The fixing component 100 is mounted on the platform 410, and the detection component 200 is mounted on the frame 400.

[0036] Platform 410 can be detachably connected to frame 400 via connecting screws. Furthermore, different sized fixing components 100 can be pre-prepared on different platforms 410. When detecting gear position sensors M of different sizes, only platform 410 needs to be replaced to adapt to the corresponding size gear position sensor M.

[0037] To facilitate the handling of the platform 410, handles 420 can be installed on the platform 410.

[0038] Compared with existing technologies: The gear position sensor M to be tested is placed on the snap-fit ​​position of the fixing component 100 for fixing. The pusher 210 can drive the connector 220 to move until the connector 220 moves to the position where it is sealed to the interface M1 of the gear position sensor M. At this time, the air inlet chamber of the connector 220 is connected to the inside of the gear position sensor M. The air pump 230 works and outputs gas to the gear position sensor M until the air pressure inside the gear position sensor M reaches the preset value and is maintained for a certain period of time. If there is no significant change in the air pressure inside the gear position sensor M after a certain period of time, it indicates that the air tightness of the gear position sensor M is good. This device can replace the manual work of testing the air tightness of the gear position sensor M, with high testing efficiency and saving time and effort.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gear flow sensor air tightness detection device, characterized in that, The device comprises a fixing assembly and a detecting assembly; The fixing assembly is provided with a clamping station for fixing the gear sensor; The detecting assembly comprises a pushing piece, a joint and a gas pump, the output end of the pushing piece is connected with the joint, the joint is driven to move in the direction of approaching or moving away from the clamping station, the joint can be sealingly connected with the interface of the gear sensor, the inside of the joint forms an air inlet cavity which is in communication with the inside of the gear sensor, and the outlet end of the gas pump is in communication with the air inlet cavity.

2. The gear flow sensor air tightness testing apparatus according to claim 1, wherein, The fixing assembly comprises a workbench and two blocks, the two blocks are oppositely and fixedly arranged on the top of the workbench, the shapes of the opposite sides of the two blocks are respectively matched with the shapes of the two sides of the gear sensor, and a fixing gap for fixing the gear sensor is formed between the two blocks.

3. The gear flow sensor air tightness testing apparatus according to claim 2, wherein, The fixing assembly further comprises two pressure sensors, the two pressure sensors are respectively arranged on the sides of the two blocks which are away from each other, and the detection heads of the two pressure sensors pass through the two blocks and extend into the fixing gap.

4. The gear flow sensor air tightness testing apparatus according to claim 3, wherein, The two pressure sensors are slidingly connected with the corresponding blocks in the direction of approaching or moving away from the blocks.

5. The gear flow sensor air tightness testing apparatus according to claim 3, wherein The detection heads of the two pressure sensors are arranged at the opposite corners of the fixing gap.

6. The gear flow sensor air tightness testing apparatus of claim 1, wherein, The gas pump is in communication with the joint via a hose.

7. The gear flow sensor air tightness testing apparatus of claim 1, wherein, The detecting assembly further comprises a gas pressure sensor, the gas pressure sensor is fixedly connected with the joint, the detection end of the gas pressure sensor is located in the air inlet cavity, and the display end of the gas pressure sensor is located outside the air inlet cavity.

8. The gear flow sensor air tightness testing apparatus of claim 1, wherein, The device further comprises a pressing assembly, the pressing assembly has a pressing end which moves in the vertical direction, and the pressing end is arranged above the clamping station.

9. The gear flow sensor air tightness testing apparatus of claim 1, wherein, The device further comprises a rack and a protective cover, the top of the rack is fixedly connected with the protective cover, a detecting cavity is formed between the rack and the protective cover, the sidewall of the protective cover is provided with an opening which is in communication with the detecting cavity, and the fixing assembly and the detecting assembly are arranged on the rack.

10. The gear stream sensor air tightness detection apparatus according to claim 9, wherein The device further comprises a platform, the platform is detachably connected with the part of the rack which is close to the opening, the fixing assembly is mounted on the platform, and the detecting assembly is mounted on the rack. The device further comprises a platform, the platform is detachably connected with the part of the rack which is close to the opening, the fixing assembly is mounted on the platform, and the detecting assembly is mounted on the rack.

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