Cover plate air tightness detection tool for automobile controller

Abstract

The utility model relates to the technical field of air tightness detection, in particular to a cover plate air tightness detection tool for an automobile controller, a main body comprises a frame body and a detection water tank, a containing mold and a to-be-detected cover plate placed on the containing mold are arranged in the detection water tank, and an air cylinder used for controlling the containing mold to ascend and descend is mounted on the frame body at the top of the detection water tank. The frame body is also provided with an air pump for ventilating the accommodating mold and a camera for monitoring the detection process; the accommodating mold comprises a lower mold and an upper pressing mold, a plurality of accommodating grooves for accommodating the cover plate are formed in the surface of the lower mold, and an air inlet hole is formed in the bottom of one side of each accommodating groove and communicates with an air pump through an external air inlet pipe; a sealing strip is installed at the edge of an opening of the containing groove and located at the joint of the cover plate and the containing groove, an air inlet groove is formed in one end of the bottom of the containing groove, and the outer side of the air inlet groove communicates with the air inlet hole. According to the invention, the detection efficiency and the detection precision of the automobile controller cover plate can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of air tightness detection, and in particular to an air tightness detection tool for a cover plate for an automobile controller. Background Art

[0002] The internal control components of the automobile controller are encapsulated in a sealed structure formed by welding the shell and the top cover. The automobile controller itself has gas sealing requirements, and the top cover as its component naturally also has sealing requirements. The base of the controller top cover is a stamping part, which is made by pouring and stamping molten aluminum. Pores may exist due to abnormal changes in temperature and pressure during the pouring and stamping process. Stamping parts with leakage defects may cause customer complaints on the one hand, and further assembly into finished products will lead to greater cost waste on the other hand. Therefore, it is necessary to conduct airtightness detection on the controller cover before the next assembly to identify it in advance.

[0003] At present, visual inspection with the naked eye is generally used to select and deal with such stamping parts with air leakage. Long-term visual inspection is prone to fatigue, which is not only detrimental to the health of inspectors, but also prone to missed judgments, resulting in greater subsequent losses. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the present application provides an air tightness detection tool for a cover plate of an automobile controller.

[0005] The present application provides a cover air tightness detection tool for automobile controllers using the following technical solutions:

[0006] A cover plate air tightness testing tool for an automobile controller comprises a main body, which comprises a frame and a testing water tank, wherein a receiving mold and a cover plate to be tested placed on the receiving mold are arranged in the testing water tank, wherein a cylinder for controlling the lifting and lowering of the receiving mold is installed on the frame at the top of the testing water tank, and an air pump for ventilating the receiving mold and a camera for monitoring the testing process are also installed on the frame; a receiving mold, wherein the receiving mold comprises a lower mold and an upper pressure mold, wherein a plurality of receiving grooves for receiving the cover plate are opened on the surface of the lower mold, wherein an air inlet hole is arranged at the bottom of one side of the receiving groove, and the air inlet hole is connected to the air pump through an externally connected air inlet pipe; a receiving groove, wherein a sealing strip is installed at the opening edge of the receiving groove, wherein the sealing strip is located at the connection between the cover plate and the receiving groove, and an air inlet groove is opened at one end of the bottom of the receiving groove, and the outer side of the air inlet groove is connected to the air inlet hole.

[0007] By adopting the above technical solution, a receiving mold is placed in the inspection water tank on the main body, and a cover plate to be inspected is placed in the receiving groove of the lower mold in the receiving mold. Under the action of the cylinder on the top of the frame, the upper mold is pressed down to make the cover plate abut against the receiving groove, and then the gas is introduced into the lower mold through the air pump. The camera installed on the frame can monitor in real time whether bubbles are generated.

[0008] Preferably, a plurality of containing tanks are provided, an air intake pipe external to the containing tank is connected to the air pump via an air intake manifold, and a valve is installed on a single air intake pipe.

[0009] By adopting the above technical solution, multiple receiving slots can be used to accommodate multiple cover plates to be inspected, and the receiving slots are supplied with air through separate intake pipes via the intake main pipe, and the valves of the intake pipes of other receiving slots can be closed when a single receiving slot is used alone.

[0010] Preferably, the detection water tank is also externally connected to a water inlet pipe and a liquid level monitor, wherein the liquid level monitors are evenly distributed at the four top corners of the detection water tank.

[0011] By adopting the above technical solution, the liquid level detector in the water tank can monitor the water level inside the device in real time, ensuring that the cover plate to be monitored can be completely immersed in water, and can be replenished in time through the water inlet pipe when the water is insufficient.

[0012] Preferably, guide rods are symmetrically distributed on the bottom of the detection water tank, and the tops of the guide rods are fixed to the top of the frame, and the lower mold and the upper pressing mold are both provided with limiting through holes adapted to the guide rods.

[0013] By adopting the above technical solution, the guide rod at the bottom of the detection tank can limit the lifting and lowering of the lower mold and the upper mold to ensure that the two are accurately matched and connected.

[0014] Preferably, the upper pressing mold and the lower mold are connected by a movable connecting rod, wherein the top and bottom of the connecting rod are installed with limiting bolts, wherein the limiting bolts are adapted to the limiting grooves at the top of the upper pressing mold and the bottom of the lower mold.

[0015] By adopting the above technical solution, when the upper pressure mold rises and separates from the lower mold, the lower mold can be lifted up by the movable connecting rod after the upper mold rises to a certain height, which makes it convenient for the operator to remove the cover plate and avoids polluting the water by taking and placing the cover plate under the water surface, which affects the accuracy of the air tightness test.

[0016] Preferably, the upper pressing mold includes a cross bar and a plurality of pressing plates corresponding to the accommodating grooves evenly distributed at the bottom of the cross bar, and the pressing plates can abut against the connection between the cover plate and the accommodating groove.

[0017] By adopting the above technical solution, the upper pressing mold adopts a cross bar and a pressing plate at the bottom of the cross bar. The cross bar rises and falls under the action of the cylinder and is transmitted to each pressing plate adapted to the accommodating groove to press the cover plate.

[0018] Preferably, the top of the cross bar is connected to the output shaft of the cylinder through a buffer device, and a pressure sensor is also installed on the cross bar.

[0019] By adopting the above technical solution, the buffer device on the top of the cross bar can provide a certain buffer when the upper pressing mold contacts the cover plate, and the pressure sensor on the cross bar can monitor the pressure applied to the cover plate in real time, detect problems in time, and avoid damage to the cover plate.

[0020] Preferably, the air cylinder, air pump, camera, liquid level detector and pressure sensor are all controlled by a PLC controller.

[0021] By adopting the above technical solution, the entire monitoring tool can efficiently and stably detect the air tightness of the automobile controller cover under the control of PLC.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. This application can test several products at the same time through the design of accommodating the mold. The staff can observe the test results intuitively while the camera performs air tightness test. It does not completely rely on human eye detection, and the detection effect is good and the detection accuracy is higher;

[0024] 2. When the upper pressure mold in the present application rises and separates from the lower mold, the lower mold can be lifted by a movable connecting rod after the upper mold rises to a certain height, which is convenient for the operator to take and place the cover plate, and has the advantages of simple, efficient and user-friendly operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an air tightness testing tool for a cover plate of an automobile controller;

[0026] Figure 2 The present invention is a structural schematic diagram of a mold in a lifting state on a tooling for testing air tightness of a cover plate for an automobile controller.

[0027] Explanation of the reference numerals: 1. Main body; 11. Frame; 111. Cylinder; 112. Air pump; 113. Camera; 12. Detection water tank; 121. Water inlet pipe; 122. Liquid level monitor; 123. Guide rod; 2. Receiving mold; 21. Lower mold; 22. Upper pressure mold; 221. Cross bar; 222. Pressing plate; 223. Buffer device; 23. Movable connecting rod; 231. Limiting bolt; 24. Limiting groove; 3. Cover plate; 4. Receiving groove; 41. Air inlet hole; 42. Sealing strip; 43. Air inlet groove; 5. Air inlet pipe; 6. Air inlet main pipe; 7. PLC controller. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 This application is described in further detail.

[0029] The embodiment of the present application discloses an air tightness detection tool for a cover plate of an automobile controller.

[0030] Reference Figure 1 and Figure 2 A gas tightness detection tool for a cover plate 3 for an automobile controller comprises a main body 1, the main body 1 comprises a frame 11 and a detection tank 12, wherein a receiving mold 2 and a cover plate 3 to be detected placed on the receiving mold 2 are arranged in the detection tank 12, wherein a cylinder 111 for controlling the lifting and lowering of the receiving mold 2 is installed on the frame 11 at the top of the detection tank 12, and an air pump 112 for ventilating the receiving mold 2 and a camera 113 for monitoring the detection process are also installed on the frame 11; the receiving mold 2, the receiving mold 2 It includes a lower mold 21 and an upper pressing mold 22, wherein the surface of the lower mold 21 is provided with a plurality of receiving grooves 4 for receiving the cover plate 3, wherein the bottom of one side of the receiving groove 4 is provided with an air inlet hole 41, and the air inlet hole 41 is connected to the air pump 112 through an external air inlet pipe 5; the receiving groove 4, the opening edge of the receiving groove 4 is provided with a sealing strip 42, wherein the sealing strip 42 is located at the connection between the cover plate 3 and the receiving groove 4, and an air inlet groove 43 is provided at one end of the bottom of the receiving groove 4, and the outer side of the air inlet groove 43 is connected to the air inlet hole 41. The receiving mold 2 is placed in the detection water tank 12 on the main body 1, and the cover plate 3 to be detected is placed in the receiving groove 4 of the lower mold 21 in the receiving mold 2. Under the action of the cylinder 111 at the top of the frame 11, the upper pressing mold 22 is pressed down to make the cover plate 3 abut against the receiving groove 4, and then the gas is introduced into the lower mold 21 through the air pump 112, and the camera 113 installed on the frame 11 can monitor in real time whether bubbles are generated.

[0031] Reference Figure 1 and Figure 2There are multiple receiving slots 4, and the intake pipe 5 connected to the receiving slots 4 is connected to the air pump 112 through the intake manifold 6, and a valve is installed on a single intake pipe 5. Multiple receiving slots 4 can be used to accommodate multiple cover plates 3 to be detected, and the receiving slots 4 are supplied with air through the intake manifold 6 through separate intake pipes 5, and the valves of the intake pipes 5 of other receiving slots 4 can be closed when a single receiving slot 4 is used alone.

[0032] Reference Figure 1 and Figure 2 The detection water tank 12 is also connected to a water inlet pipe 121 and a liquid level monitor 122, wherein the liquid level monitors 122 are evenly distributed at the four corners of the detection water tank 12. The liquid level detector in the detection water tank 12 can monitor the water level inside the tank in real time to ensure that the cover plate 3 to be monitored can be completely immersed in water, and can be replenished in time through the water inlet pipe 121 when the water is insufficient.

[0033] Reference Figure 1 and Figure 2 The bottom of the detection water tank 12 is symmetrically provided with guide rods 123, and the top of the guide rods 123 is fixed to the top of the frame 11, and the lower mold 21 and the upper pressing mold 22 are both provided with limit holes adapted to the guide rods 123. The guide rods 123 at the bottom of the detection water tank 12 can limit the lifting and lowering of the lower mold 21 and the upper mold to ensure the precise matching connection between the two.

[0034] Reference Figure 1 and Figure 2 The upper pressing mold 22 and the lower mold 21 are connected by a movable connecting rod 23, wherein the top and bottom of the connecting rod are both equipped with limit bolts 231, wherein the limit bolts 231 are adapted to the limit grooves 24 at the top of the upper pressing mold 22 and the bottom of the lower mold 21. When the upper pressing mold 22 is rising and separating from the lower mold 21, the lower mold 21 can be lifted by the movable connecting rod 23 after the upper mold rises to a certain height, so that the operator can remove the cover plate 3 conveniently, and avoid taking and placing the cover plate 3 under the water surface to pollute the water and affect the accuracy of the air tightness test.

[0035] Reference Figure 1 and Figure 2 The upper pressing mold 22 includes a cross bar 221 and a plurality of pressing plates 222 corresponding to the receiving grooves 4 evenly distributed at the bottom of the cross bar 221, and the pressing plates 222 can abut against the connection between the cover plate 3 and the receiving groove 4. The upper pressing mold 22 generally adopts the cross bar 221 and the pressing plates 222 at the bottom of the cross bar 221. The cross bar 221 rises and falls under the action of the cylinder 111, and is transmitted to each pressing plate 222 adapted to the receiving groove 4 to press the cover plate 3.

[0036] Reference Figure 1 and Figure 2The top of the crossbar 221 is connected to the output shaft of the cylinder 111 through a buffer device 223, and a pressure sensor is also installed on the crossbar 221. The buffer device 223 on the top of the crossbar 221 can provide a certain buffer when the upper pressing mold 22 contacts the cover plate 3, and the pressure sensor on the crossbar 221 can monitor the pressure applied to the cover plate 3 in real time, find problems in time, and avoid damage to the cover plate 3.

[0037] Reference Figure 1 and Figure 2 The cylinder 111, the air pump 112, the camera 113, the liquid level detector and the pressure sensor are all controlled by the PLC controller 7. The entire monitoring tooling can efficiently and stably detect the air tightness of the automobile controller cover 3 under the control of the PLC.

[0038] Working principle: The receiving mold 2 is placed in the detection water tank 12 on the main body 1, and the cover plate 3 to be detected is placed in the receiving groove 4 of the lower mold 21 in the receiving mold 2. Under the action of the cylinder 111 at the top of the frame 11, the upper pressure mold 22 is pressed down to make the cover plate 3 abut against the receiving groove 4, and then the gas is introduced into the lower mold 21 through the air pump 112. The camera 113 installed on the frame 11 can monitor in real time whether it generates bubbles.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cover air tightness detection tool for automobile controller, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises a frame (11) and a detection water tank (12), wherein a receiving mold (2) and a cover plate (3) to be detected placed on the receiving mold (2) are arranged in the detection water tank (12), wherein a cylinder (111) for controlling the lifting and lowering of the receiving mold (2) is installed on the frame (11) at the top of the detection water tank (12), and an air pump (112) for ventilating the receiving mold (2) and a camera (113) for monitoring the detection process are also installed on the frame (11); A receiving mold (2), the receiving mold (2) comprising a lower mold (21) and an upper pressing mold (22), wherein a plurality of receiving grooves (4) for receiving the cover plate (3) are provided on the surface of the lower mold (21), wherein an air inlet hole (41) is provided at the bottom of one side of the receiving groove (4), and the air inlet hole (41) is connected to an air pump (112) via an externally connected air inlet pipe (5); A receiving groove (4), wherein a sealing strip (42) is installed at the opening edge of the receiving groove (4), wherein the sealing strip (42) is located at the connection between the cover plate (3) and the receiving groove (4), and an air inlet groove (43) is opened at one end of the bottom of the receiving groove (4), and the outer side of the air inlet groove (43) is connected to the air inlet hole (41).

2. The air tightness detection tool for a cover plate of an automobile controller according to claim 1, characterized in that: The containing tanks (4) are provided in plurality, and an air intake pipe (5) externally connected to the containing tanks (4) is connected to the air pump (112) via an air intake manifold (6), and a valve is installed on each air intake pipe (5).

3. The air tightness detection tool for a cover plate of an automobile controller according to claim 2, characterized in that: The detection water tank (12) is also externally connected to a water inlet pipe (121) and a liquid level monitor (122), wherein the liquid level monitor (122) is evenly distributed at the four top corners of the detection water tank (12).

4. The air tightness detection tool for a cover plate of an automobile controller according to claim 1, characterized in that: The bottom of the detection water tank (12) is symmetrically provided with guide rods (123), and the top of the guide rods (123) is fixed to the top of the frame (11), and the lower mold (21) and the upper pressing mold (22) are both provided with limiting through holes adapted to the guide rods (123).

5. The air tightness detection tool for a cover plate of an automobile controller according to claim 4, characterized in that: The upper pressing mold (22) and the lower mold (21) are connected via a movable connecting rod (23), wherein the top and bottom of the connecting rod are both installed with limiting bolts (231), wherein the limiting bolts (231) are adapted to the limiting grooves (24) at the top of the upper pressing mold (22) and the bottom of the lower mold (21).

6. The air tightness testing tool for a cover plate of an automobile controller according to claim 5, characterized in that: The upper pressing mold (22) comprises a cross bar (221) and a plurality of pressing plates (222) evenly distributed at the bottom of the cross bar (221) corresponding to the receiving groove (4), and the pressing plates (222) can abut against the connection between the cover plate (3) and the receiving groove (4).

7. The air tightness testing tool for a cover plate of an automobile controller according to claim 6, characterized in that: The top of the cross bar (221) is connected to the output shaft of the cylinder (111) via a buffer device (223), and a pressure sensor is also installed on the cross bar (221).

8. The air tightness testing tool for a cover plate of an automobile controller according to claim 1, characterized in that: The air cylinder (111), air pump (112), camera (113), liquid level detector and pressure sensor are all controlled by a PLC controller (7).

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