Leakage detection device for rear end cover production

Abstract

The utility model relates to the technical field of production detection, in particular to a leak detection device for rear end cover production, which comprises a box body placed on the ground, the outer wall of the box body is fixedly connected with a placing box, the bottom end of the inner wall of the placing box is fixedly connected with an air pump, the air pump is connected with a detected piece through an air inflation detection structure, and the detected piece is connected with the air inflation detection structure. A power cavity is formed in the bottom end of the box body, a driving motor is fixedly connected to the bottom end of the inner wall of the power cavity, the driving motor is connected with a lifting table through a lifting clamping structure, and an electric push rod is arranged on the lifting table. According to the utility model, the lifting platform can be driven by the driving motor to move up and down, the electric push rod on the lifting platform pushes the clamping claw to clamp a detected piece, and during inflation detection, the lifting platform drives the detected piece to move without being influenced, so that the detected piece is not easy to deviate while being conveniently clamped, and when the lifting platform moves, the detected piece is not easy to deviate. And the test result is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of production detection, in particular to a leakage detection device for rear end cover production. Background Art

[0002] The rear end cover production leak detection device is mainly used to detect whether there is leakage in the rear end cover (usually refers to the closed part in the engine, transmission or other mechanical equipment). During the manufacturing process, the rear end cover usually needs to ensure good sealing to prevent liquid, gas or other media from leaking during the operation of the equipment, thereby ensuring the safety and performance of the equipment. The leak detection device simulates the pressure or vacuum conditions of the rear end cover in the actual working environment to detect whether there is a tiny leak.

[0003] Common detection methods include: pressure leak detection, vacuum leak detection, helium mass spectrometry leak detection, and bubble leak detection. The most commonly used detection method is bubble leak detection: immerse the rear end cover in liquid, and generate bubbles at the leak by pressurizing or depressurizing it, so as to intuitively determine the leak location. However, conventional bubble leak detection is to put it directly into water and pressurize it for testing without clamping, which makes it easy to deviate during the test, resulting in unsatisfactory test results. Utility Model Content

[0004] The utility model aims to solve the shortcomings of conventional bubble leak detection in which the bubble is directly put into water and pressurized for testing without clamping, which makes it easy to deviate during the test and results in unsatisfactory test results. A leak detection device for rear end cover production is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A leak detection device for rear end cover production, comprising a box body placed on the ground, the outer wall of the box body is fixedly connected to a placement box, the bottom end of the inner wall of the placement box is fixedly connected to an air pump, the air pump is connected to a detected part through an inflation detection structure, a power cavity is provided at the bottom end of the box body, the bottom end of the inner wall of the power cavity is fixedly connected to a driving motor, the driving motor is connected to a lifting platform through a lifting clamping structure, and an electric push rod is provided on the lifting platform.

[0007] Preferably, the inflation detection structure includes a soft air tube, a sliding port, and a sealing connector, one end of the soft air tube is fixedly connected to the air pump, the sliding port is arranged on the outer wall of the box, and the sealing connector is slidably connected to the detected part.

[0008] Preferably, the soft air pipe is slidably connected to the sliding port, and the other end of the soft air pipe is fixedly connected to the sealing connector.

[0009] Preferably, the lifting and clamping structure includes a first pulley, a second pulley, a belt, a first screw, a second screw, a symmetrically distributed sliding rod, a limit cover, a connecting block, and a clamping claw. The first pulley is fixedly connected to the output end of the driving motor, the second pulley is rotatably connected to the top end of the inner wall of the power chamber, and the first pulley is connected to the second pulley through a belt.

[0010] Preferably, the first lead screw is rotatably connected to the bottom end of the inner wall of the box body, the second lead screw is rotatably connected to the bottom end of the inner wall of the box body, the slide rod is fixedly connected to the bottom end of the inner wall of the box body, the limit cover is respectively fixedly connected to the top ends of the first lead screw, the second lead screw and the slide rod, the lifting platform is threadedly connected to the first lead screw and the second lead screw, and the lifting platform is slidably connected to the slide rod.

[0011] Preferably, the connecting block is fixedly connected to the top of the lifting platform, the electric push rod is fixedly connected to the inward end of the outer wall of the connecting block, the clamping claw is fixedly connected to the telescopic end of the electric push rod, and the clamping claw is slidably connected to the outer wall of the detected part.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the lifting platform can be driven up and down by the driving motor, and at the same time the electric push rod on the lifting platform pushes the clamping claws to clamp the detected part, and when the inflation test is performed, the movement of the detected part driven by the lifting platform is not affected, so that it is convenient for clamping and not easy to deviate, and the test result will not be affected when the lifting platform moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a leak detection device for rear end cover production proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a leak detection device for rear end cover production proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the X-axis half-section three-dimensional structure of a leak detection device for rear end cover production proposed by the utility model;

[0017] Figure 4 It is a Y-axis half-section three-dimensional structural schematic diagram of a leak detection device for rear end cover production proposed by the utility model.

[0018] In the figure: 1 box, 2 placement box, 3 air pump, 4 detected part, 5 driving motor, 6 lifting platform, 7 electric push rod, 8 soft air pipe, 9 sliding mouth, 10 sealing connector, 11 first pulley, 12 second pulley, 13 belt, 14 first lead screw, 15 second lead screw, 16 sliding rod, 17 limit cover, 18 connecting block, 19 clamping claw, 20 power chamber. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-Figure 4 A leak detection device for rear end cover production includes a box body 1 placed on the ground, the outer wall of the box body 1 is fixedly connected to a placement box 2, the bottom end of the inner wall of the placement box 2 is fixedly connected to an air pump 3, the air pump 3 is connected to a detected part 4 through an inflation detection structure, a power chamber 20 is provided at the bottom end of the box body 1, the bottom end of the inner wall of the power chamber 20 is fixedly connected to a driving motor 5, the driving motor 5 is connected to a lifting platform 6 through a lifting clamping structure, and an electric push rod 7 is provided on the lifting platform 6.

[0021] It should be noted that the specific models and specifications of the air pump 3, the drive motor 5 and the electric push rod 7 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0022] Furthermore, the inflation detection structure includes a soft air tube 8, a sliding port 9, and a sealing connector 10. One end of the soft air tube 8 is fixedly connected to the air pump 3. The sliding port 9 is arranged on the outer wall of the box body 1. The sealing connector 10 is slidably connected to the detected component 4.

[0023] The inflation detection structure starts the air pump 3, and the air pump 3 injects gas into the detected part 4 through the soft air tube 8. When the unqualified detected part 4 is immersed in water, bubbles will be generated.

[0024] Furthermore, the soft air pipe 8 is slidably connected to the sliding port 9 , and the other end of the soft air pipe 8 is fixedly connected to the sealing connector 10 .

[0025] The bottom end of the sliding opening 9 should be located above the water level to prevent the air pump 3 from being damaged due to water leakage.

[0026] Furthermore, the lifting and clamping structure includes a first pulley 11, a second pulley 12, a belt 13, a first screw 14, a second screw 15, a symmetrically distributed sliding rod 16, a limit cover 17, a connecting block 18, and a clamping claw 19. The first pulley 11 is fixedly connected to the output end of the driving motor 5, the second pulley 12 is rotatably connected to the top end of the inner wall of the power chamber 20, and the first pulley 11 is connected to the second pulley 12 through the belt 13.

[0027] The first pulley 11 drives the first lead screw 14 to rotate, and the second pulley 12 drives the second lead screw 15 to rotate.

[0028] Furthermore, the first lead screw 14 is rotatably connected to the bottom end of the inner wall of the box body 1, the second lead screw 15 is rotatably connected to the bottom end of the inner wall of the box body 1, the slide rod 16 is fixedly connected to the bottom end of the inner wall of the box body 1, the limit cover 17 is respectively fixedly connected to the top ends of the first lead screw 14, the second lead screw 15, and the slide rod 16, the lifting platform 6 is threadedly connected to the first lead screw 14 and the second lead screw 15, and the lifting platform 6 is slidably connected to the slide rod 16.

[0029] The electric push rod 7 is located at the top, and when the detected component 4 is immersed in water, the electric push rod 7 is not affected, and a waterproof device is provided on the outer wall of the electric push rod 7.

[0030] Furthermore, the connecting block 18 is fixedly connected to the top of the lifting platform 6, the electric push rod 7 is fixedly connected to the inner end of the outer wall of the connecting block 18, the clamping claw 19 is fixedly connected to the telescopic end of the electric push rod 7, and the clamping claw 19 is slidably connected to the outer wall of the detected part 4.

[0031] The inner wall of the box body 1 is provided with symmetrically distributed convex grooves, and the connecting block 18 is slidably connected to the convex grooves.

[0032] Working principle: first, place the detected part 4 on the lifting platform 6, then start the electric push rod 7, the electric push rod 7 pushes the clamping claw 19 to clamp the detected part 4, then start the driving motor 5, the driving motor 5 drives the first pulley 11 to rotate, the first pulley 11 drives the second pulley 12 to rotate, the first pulley 11 drives the first lead screw 14 to rotate, the second pulley drives the second lead screw 15 to rotate, the first lead screw 14 and the second lead screw 15 have the same rotation direction, thereby driving the lifting platform 6 to move up and down.

[0033] After the lifting platform 6 drives the inspected piece into the water, the air pump 3 can be started. The air pump 3 injects gas into the inspected piece 4 through the soft air tube 8. When the unqualified inspected piece 4 is immersed in water, bubbles will be generated, which makes it easier to clamp it and is not easy to shift. When the lifting platform moves, it will not affect the test results.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A leak detection device for rear end cover production, comprising a box (1) placed on the ground, characterized in that: The outer wall of the box body (1) is fixedly connected to a placement box (2), the bottom end of the inner wall of the placement box (2) is fixedly connected to an air pump (3), the air pump (3) is connected to a detected component (4) via an inflation detection structure, a power chamber (20) is provided at the bottom end of the box body (1), the bottom end of the inner wall of the power chamber (20) is fixedly connected to a drive motor (5), the drive motor (5) is connected to a lifting platform (6) via a lifting clamping structure, and an electric push rod (7) is provided on the lifting platform (6).

2. A leak detection device for rear end cover production according to claim 1, characterized in that: The inflation detection structure comprises a soft air tube (8), a sliding opening (9), and a sealing connection piece (10); one end of the soft air tube (8) is fixedly connected to the air pump (3); the sliding opening (9) is arranged on the outer wall of the box body (1); and the sealing connection piece (10) is slidably connected to the detected part (4).

3. A leak detection device for rear end cover production according to claim 2, characterized in that: The soft air pipe (8) is slidably connected to the sliding port (9), and the other end of the soft air pipe (8) is fixedly connected to the sealing connector (10).

4. A leak detection device for rear end cover production according to claim 1, characterized in that: The lifting and clamping structure comprises a first pulley (11), a second pulley (12), a belt (13), a first lead screw (14), a second lead screw (15), a symmetrically distributed sliding rod (16), a limit cover (17), a connecting block (18), and a clamping claw (19); the first pulley (11) is fixedly connected to the output end of the driving motor (5); the second pulley (12) is rotatably connected to the top end of the inner wall of the power chamber (20); and the first pulley (11) is connected to the second pulley (12) via a belt (13).

5. A leak detection device for rear end cover production according to claim 4, characterized in that: The first lead screw (14) is rotatably connected to the bottom end of the inner wall of the box body (1), the second lead screw (15) is rotatably connected to the bottom end of the inner wall of the box body (1), the slide bar (16) is fixedly connected to the bottom end of the inner wall of the box body (1), the limit cover (17) is respectively fixedly connected to the top ends of the first lead screw (14), the second lead screw (15) and the slide bar (16), the lifting platform (6) is threadedly connected to the first lead screw (14) and the second lead screw (15), and the lifting platform (6) is slidably connected to the slide bar (16).

6. A leak detection device for rear end cover production according to claim 5, characterized in that: The connecting block (18) is fixedly connected to the top end of the lifting platform (6), the electric push rod (7) is fixedly connected to the inner end of the outer wall of the connecting block (18), the clamping claw (19) is fixedly connected to the telescopic end of the electric push rod (7), and the clamping claw (19) is slidably connected to the outer wall of the detected component (4).

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