A robot accessory air tightness detection device

By using fluorescent agents to enhance the color refraction of water during motor casing inspection, combined with gooseneck tubes and lighting to locate side leaks, and utilizing absorbent cloth to quickly absorb water, the problem of visual fatigue in motor casing airtightness inspection was solved, and the inspection speed and environmental dryness were improved.

CN224535329UActive Publication Date: 2026-07-21AOBO (DALIAN) ROBOT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AOBO (DALIAN) ROBOT CO LTD
Filing Date
2025-10-09
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing motor casing airtightness testing, the colorless flow of water can cause visual fatigue and affect the testing results.

Method used

Fluorescent agents are used to enhance the color refraction of the water source. Combined with gooseneck tubes and lighting lamps, side leaks are located. Absorbent cloths are used to quickly absorb the water source and increase the dryness of the test platform surface.

Benefits of technology

It improves the speed and accuracy of motor housing side leakage detection, reduces moisture on the test bench surface, and enhances the dryness of the test environment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224535329U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of sealing element leak detection, specifically a kind of robot accessory air tightness detection device, including detection table, the middle part of detection table is fixedly connected with placing table;The middle part of placing table is provided with motor shell;The top of detection table is fixedly connected with support frame;The middle part of support frame is fixedly connected with air cylinder;The output end of air cylinder is fixedly connected with top plate;The top plate is located motor shell top;Water inlet is opened in the middle part of placing table;The side wall of detection table is fixedly connected with connecting pipe;The connecting pipe and water inlet are in communication relationship;The bottom of support frame is fixedly connected with goose neck pipe;By increasing fluorescent agent in water source can when water source exposes, by the light of illuminating lamp to water source is irradiated, make its water source produce color refraction, thereby increase the highlight when inspection, make it when detecting motor shell side leakage more quickly, simultaneously, the characteristic of goose neck pipe itself can increase support to illuminating lamp when moving, make it increase the stability when illuminating lamp moves.
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Description

Technical Field

[0001] This utility model relates to the field of leak detection of sealing components, specifically a device for detecting the airtightness of robot parts. Background Technology

[0002] Robots are typical electrical devices. Their operation relies on electric power and electrical control systems. They can complete tasks such as handling, assembly, and testing according to preset programs or instructions. The internal motor of a robot is usually installed on a motor base, which is the base frame or component of the electrical equipment. At the same time, the motor is composed of a rotor, a housing, a heat dissipation component, etc. After the motor housing is manufactured, it needs to be tested for air tightness before installation. The data is used to determine whether the motor housing meets the standards.

[0003] There are three main methods for testing the airtightness of motor housings: the first is the water injection method, which involves sealing the housing, injecting water to maintain pressure, observing changes in water level or pressure, and identifying leaks through water leakage points. This method is simple to operate. The second is the air pressure method, which involves filling the housing with compressed air and monitoring the pressure. This method includes the direct pressure method (directly measuring the pressure drop) and the differential pressure method (comparing the pressure difference with a standard component), and has high accuracy. The third is the helium mass spectrometry leak detection method, which involves filling the housing with helium and using a mass spectrometer to detect leaks. This method has extremely high accuracy.

[0004] When inspecting the motor casing, water is injected into the casing and then drained through the leak detection point. Since the water is colorless and difficult to observe, repeated observations can cause visual fatigue, thus affecting the inspection results.

[0005] Therefore, a robot component airtightness testing device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A robot accessory airtightness testing device of this utility model includes a testing platform, a placement platform fixedly connected to the middle of the testing platform; a motor housing disposed in the middle of the placement platform; a support frame fixedly connected to the top of the testing platform; a cylinder fixedly connected to the middle of the support frame; a top plate fixedly connected to the output end of the cylinder; the top plate is located on the top of the motor housing; a water inlet is opened in the middle of the placement platform; a connecting pipe is fixedly connected to the side wall of the testing platform; the connecting pipe and the water inlet are connected; a gooseneck tube is fixedly connected to the bottom of the support frame; a lighting lamp is fixedly connected to the bottom of the gooseneck tube; by adding a fluorescent agent to the water source, when the water source is exposed, the light from the lighting lamp can illuminate the water source, causing color refraction, thereby increasing its prominence during inspection and making the detection of side leakage of the motor housing faster. Simultaneously, the characteristics of the gooseneck tube itself can provide support for the lighting lamp during movement, increasing its stability during lamp movement.

[0008] Preferably, a sliding plate is slidably connected to the surface of the testing platform; a pair of bolts are threadedly connected to the middle of the sliding plate; a square plate is rotatably connected to the bottom of the bolts; an absorbent cloth is provided between the square plate and the sliding plate; by adding the absorbent cloth, water on the surface of the testing platform can be quickly absorbed after the motor housing is tested, thereby reducing water remaining on the surface of the testing platform, thus increasing the dryness of the testing platform surface, reducing the moisture of the testing platform surface, and increasing the dryness of the testing environment when the testing platform is used.

[0009] Preferably, a pair of fixing clips are fixedly connected to the inner wall of the support frame; a protective plate is fixedly connected to the surface of the support frame; the protective plate is located below the fixing clips and on the side closer to the light source; by adding the fixing clips and the protective plate, the gooseneck tube and the light source can be protected when placed. At the same time, the fixing clips will restrict the end of the gooseneck tube near the light source, causing it to stay between the slide plates. Then the protective plate will close the mirror of the light source, thereby increasing the blocking of external dust.

[0010] Preferably, a sealing gasket is fixed to the bottom of the top plate; the sealing gasket is located between the motor housing and the top plate; by adding the sealing gasket, the deformation of the sealing gasket can increase the filling of the gap between the top plate and the motor housing when the top plate and the motor housing are in contact, thereby increasing the seal between the motor housing and the top plate.

[0011] Preferably, a ring is fixed to the top of the bolt; the ring and the bolt are correspondingly arranged; by adding the ring, the force-bearing area of ​​the bolt can be increased through the circular shape, thereby making the rotation faster and accelerating the installation and disassembly of the absorbent cloth.

[0012] Preferably, a pair of magnets are fixed to the side wall of the skateboard; a metal plate is fixed to the inner wall of the support frame; by adding magnets and metal plates, the skateboard can be restricted when it stops moving, allowing it to be quickly fixed by magnetic attraction.

[0013] The advantages of this utility model are:

[0014] 1. The robot accessory airtightness detection device of this utility model adds a fluorescent agent to the water source. When the water source is exposed, the light from the lamp illuminates the water source, causing the water source to refract color, thereby increasing its prominence during inspection. This makes it faster to detect leaks on the motor housing side. At the same time, the characteristics of the gooseneck tube itself can provide support for the lamp during movement, increasing the stability of the lamp during movement.

[0015] 2. The robot accessory airtightness testing device of this utility model can quickly absorb water on the surface of the testing table after the motor housing is tested by adding a water-absorbing cloth, thereby reducing the amount of water remaining on the surface of the testing table, increasing the dryness of the testing table surface, reducing the moisture of the testing table surface, and increasing the dryness of the testing environment when the testing table is used. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the water inlet structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the skateboard in this utility model;

[0020] Figure 4 This is a schematic diagram of the top plate structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the support frame in this utility model.

[0022] In the diagram: 1. Testing platform; 11. Placement platform; 12. Motor housing; 13. Support frame; 14. Cylinder; 15. Top plate; 16. Water inlet; 17. Connecting pipe; 18. Gooseneck pipe; 19. Lighting lamp; 2. Slide plate; 21. Bolt; 22. Square plate; 23. Absorbent cloth; 3. Fixing clamp; 31. Protective plate; 4. Sealing gasket; 5. Ring; 6. Magnet; 61. Metal plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a robot accessory airtightness testing device includes a testing platform 1, a placement platform 11 fixedly connected to the middle of the testing platform 1; a motor housing 12 disposed in the middle of the placement platform 11; a support frame 13 fixedly connected to the top of the testing platform 1; a cylinder 14 fixedly connected to the middle of the support frame 13; a top plate 15 fixedly connected to the output end of the cylinder 14; the top plate 15 is located on top of the motor housing 12; a water inlet 16 is opened in the middle of the placement platform 11; and a connecting rod is fixedly connected to the side wall of the testing platform 1. Connector 17; the connecting pipe 17 and the water inlet 16 are connected; a gooseneck pipe 18 is fixedly connected to the bottom of the support frame 13; a lighting lamp 19 is fixedly connected to the bottom of the gooseneck pipe 18; during operation, when inspecting the motor housing 12, the motor housing 12 is first placed vertically on the placement platform 11, and then the cylinder 14 is started to drive the top plate 15 down. After it is down, the top plate 15 contacts the motor housing 12, so that it is pushed and pressed tightly against the placement platform 11, thereby sealing both ends. Then the water pump of the connecting pipe 17 pumps the water from the tank. The water source is extracted; the water in the tank contains a special fluorescent agent for detection, which enters the inlet 16 through the connecting pipe 17. After entering the inlet 16, it gradually fills the inside of the motor housing 12. When it is full, the water pump is stopped, and the lighting lamp 19 is turned on. Holding the gooseneck tube 18, the light is shone around the motor housing 12. When a side leak occurs, the fluorescent agent inside the water will reflect a bright color when the light from the lighting lamp 19 comes into contact with the water source. At this time, the color can be quickly captured, thus quickly observing the side leak and speeding up the collection of detection results. Then, the water source can be extracted back through the water pump connected to the lighting lamp 19. By adding fluorescent agent to the water source, when the water source is exposed, the light from the lighting lamp 19 will cause the water source to refract color, thereby increasing the prominence during inspection and making the detection of side leaks in the motor housing 12 faster. At the same time, the characteristics of the gooseneck tube 18 itself can provide support for the lighting lamp 19 when it is moved, thus increasing the stability of the lighting lamp 19 when it is moved.

[0026] like Figures 1 to 3As shown, a sliding plate 2 is slidably connected to the surface of the testing platform 1; a pair of bolts 21 are threadedly connected to the middle of the sliding plate 2; a square plate 22 is rotatably connected to the bottom of the bolts 21; an absorbent cloth 23 is provided between the square plate 22 and the sliding plate 2; during operation, when water leaks from the motor housing 12, it flows into the surface of the testing platform 1. At this time, after removing the motor housing 12, the sliding plate 2 can be slid. During the sliding, the absorbent cloth 23 will move against the surface of the testing platform 1, absorbing the water on the surface of the testing platform 1 and cleaning it, reducing the water source on the testing platform 1. After repeated use, the pair of bolts 21 can be rotated to gradually move closer to the testing platform 1. At the same time, the absorbent cloth 23 will gradually separate from the slide plate 2 due to the movement of the square plate 22. After separation, the absorbent cloth 23 can be removed for drying. By adding the absorbent cloth 23, the water source on the surface of the testing platform 1 can be quickly absorbed after the motor housing 12 is tested, thereby reducing the water source remaining on the surface of the testing platform 1, thus increasing the dryness of the surface of the testing platform 1, reducing the moisture of the surface of the testing platform 1, and increasing the dryness of the testing environment when the testing platform 1 is used.

[0027] like Figures 4 to 5 As shown, a pair of fixing clips 3 are fixedly connected to the inner wall of the support frame 13; a protective plate 31 is fixedly connected to the surface of the support frame 13; the protective plate 31 is located below the fixing clips 3 and on the side closer to the lighting lamp 19; during operation, when not in use, the gooseneck tube 18 can be used to move the lighting lamp 19. At this time, the gooseneck tube 18 is inserted between the pair of fixing clips 3, and after insertion, the lighting lamp 19 is placed inside the protective plate 31, thereby blocking the mirror surface of the protective plate 31 and reducing dust scattering and mirror contact during placement; by adding the fixing clips 3 and the protective plate 31, the gooseneck tube 18 and the lighting lamp 19 can be protected when placed. At the same time, the fixing clips 3 restrict the end of the gooseneck tube 18 near the lighting lamp 19, causing it to stay between the sliding plates 2. Then the protective plate 31 closes the mirror surface of the lighting lamp 19, thereby increasing the blocking of external dust.

[0028] like Figure 5 As shown, a sealing gasket 4 is fixedly connected to the bottom of the top plate 15; the sealing gasket 4 is located between the motor housing 12 and the top plate 15; during operation, when the top plate 15 compresses and seals the motor housing 12, the sealing gasket 4 will first contact the motor housing 12. Upon contact, the sealing gasket 4 will gradually deform with the pressure, changing along the shape of the end of the motor housing 12. After the deformation, it will be tightly attached to the end of the motor housing 12, which will increase the sealing effect; by adding the sealing gasket 4, the deformation of the sealing gasket 4 can fill the gap between the top plate 15 and the motor housing 12 when they contact each other, thereby increasing the seal between the motor housing 12 and the top plate 15.

[0029] like Figures 1 to 3 As shown, a ring 5 is fixed to the top of the bolt 21; the ring 5 and the bolt 21 are correspondingly arranged; during operation, when the bolt 21 is rotated, it can contact the ring 5. When the bolt 21 is rotated using the ring 5, the ring 5 increases the force-bearing point of the bolt 21, making it stably drive the bolt 21 to rotate, thereby speeding up the rotation of the bolt 21; by adding the ring 5, the force-bearing area of ​​the bolt 21 can be increased through the circular shape, thereby making the rotation faster and speeding up the installation and disassembly of the absorbent cloth 23.

[0030] like Figures 1 to 5 As shown, a pair of magnets 6 are fixed to the side wall of the slide plate 2; a metal plate 61 is fixed to the inner wall of the support frame 13; during operation, after the slide plate 2 is slid, the magnets 6 will come into contact with the metal plate 61. When in contact, the magnets 6 will be attracted to the metal plate 61 by magnetic force and fixed. After being fixed, the stability of the slide plate 2 can be increased when it is not in use; by adding magnets 6 and metal plate 61, the slide plate 2 can be restricted when it stops moving, so that it can be quickly fixed by magnetic attraction.

[0031] Working principle: When testing the motor housing 12, the motor housing 12 is first placed vertically on the placement platform 11. Then, the cylinder 14 is activated to move the top plate 15 downwards. After downward movement, the top plate 15 contacts the motor housing 12, pushing it to fit tightly against the placement platform 11, thus sealing both ends. Subsequently, the water pump connected to the connecting pipe 17 draws water from the water tank. The water in the tank contains water with added special fluorescent agent for testing, which enters the inlet 16 through the connecting pipe 17. After entering the inlet 16, the water gradually fills the inside of the motor housing 12. Once full, the water pump is stopped. After stopping, the lighting 19 is turned on, and the gooseneck tube 18 is held to illuminate the area around the motor housing 12. In the event of a side leak, the fluorescent agent inside the water source will reflect a bright color when the light from the illumination lamp 19 comes into contact with the water source. This allows for rapid color detection, facilitating observation of the leaking water and accelerating the collection of test results. The water source can then be pumped back to its original location using the water pump connected to the illumination lamp 19. When water leaks from the motor housing 12 onto the surface of the testing platform 1, the sliding plate 2 can be moved after removing the motor housing 12. During this movement, the absorbent cloth 23 will move along the surface of the testing platform 1, absorbing and cleaning the water source and reducing its presence on the testing platform 1. During the dwell time, after multiple uses, a pair of bolts 21 can be rotated to gradually move it closer to the testing platform 1. Simultaneously, the absorbent cloth 23 will gradually separate from the sliding plate 2 due to the movement of the square plate 22. After separation, the absorbent cloth 23 can be removed and dried. When not in use, the gooseneck tube 18 can be used to move the lighting lamp 19. The gooseneck tube 18 is then inserted between a pair of fixing clips 3. After insertion, the lighting lamp 19 is placed inside the protective plate 31, thus blocking the mirror surface of the protective plate 31 and reducing dust dispersion and mirror contact during placement. When the top plate 15 presses and seals the motor housing 12, the sealing gasket 4 will first contact the motor housing 12. When in contact, the sealing gasket 4 will gradually deform under pressure, changing its shape along the end of the motor housing 12. After deformation, it will fit tightly against the end of the motor housing 12, increasing the sealing effect. When the bolt 21 is rotated, it can contact the ring 5. When the bolt 21 is rotated using the ring 5, the ring 5 increases the force point of the bolt 21, making it stably drive the bolt 21 to rotate, thereby accelerating the rotation of the bolt 21. After the slide plate 2 slides, the magnet 6 will contact the metal plate 61. When in contact, it will be attracted to the metal plate 61 by the magnetic force of the magnet 6 and fixed. After being fixed, it can increase the stability of the slide plate 2 when it is not in use.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for detecting the airtightness of robot parts, characterized in that: The device includes a testing platform (1), a placement platform (11) fixedly connected to the middle of the testing platform (1); a motor housing (12) is provided in the middle of the placement platform (11); a support frame (13) is fixedly connected to the top of the testing platform (1); a cylinder (14) is fixedly connected to the middle of the support frame (13); a top plate (15) is fixedly connected to the output end of the cylinder (14); the top plate (15) is located on top of the motor housing (12); a water inlet (16) is provided in the middle of the placement platform (11); a connecting pipe (17) is fixedly connected to the side wall of the testing platform (1); the connecting pipe (17) and the water inlet (16) are connected; a gooseneck tube (18) is fixedly connected to the bottom of the support frame (13); and a lighting lamp (19) is fixedly connected to the bottom of the gooseneck tube (18).

2. The airtightness testing device for robot parts according to claim 1, characterized in that: The testing platform (1) has a sliding plate (2) slidably connected to its surface; a pair of bolts (21) are threadedly connected to the middle of the sliding plate (2); a square plate (22) is rotatably connected to the bottom of the bolts (21); and an absorbent cloth (23) is provided between the square plate (22) and the sliding plate (2).

3. The airtightness testing device for robot parts according to claim 2, characterized in that: A pair of fixing clips (3) are fixed to the inner wall of the support frame (13); a protective plate (31) is fixed to the surface of the support frame (13); the protective plate (31) is located below the fixing clips (3) and on the side close to the lighting lamp (19).

4. The airtightness testing device for robot parts according to claim 3, characterized in that: A sealing gasket (4) is fixedly connected to the bottom of the top plate (15); the sealing gasket (4) is located between the motor housing (12) and the top plate (15).

5. The airtightness testing device for robot parts according to claim 4, characterized in that: A ring (5) is fixed to the top of the bolt (21); the ring (5) and the bolt (21) are arranged correspondingly.

6. The airtightness testing device for robot parts according to claim 5, characterized in that: A pair of magnets (6) are fixed to the side wall of the slide plate (2); a metal plate (61) is fixed to the inner wall of the support frame (13).