A motor frame assembly leak detection fixture

Abstract

The utility model relates to leak detection fixture technical field, concretely relates to a motor frame assembly leak detection fixture, including bottom plate, bottom plate top surface four corners are all fixedly installed with support column, and support column top surface is fixedly installed with the top plate, the sealed inner cover is fixedly installed on the bottom plate top surface, the lifting mechanism is fixedly installed on the top plate, the first limit seat is fixedly installed on the bottom plate top surface, the second limit seat is fixedly installed on the lifting mechanism bottom surface, the limit mechanism is fixedly installed on the lifting mechanism bottom surface, the utility model can be positioned to motor frame, keeps the stability of plugging effect to motor frame, reduces the inflation time in the detection process simultaneously, and further improves the detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of leak detection jigs, and particularly relates to a leak detection jig for a motor base assembly. Background Art

[0002] The motor is an essential power device in the mechanical production industry. The motor drives other transmission devices to achieve the linkage effect between machines, and then uses a grinding part to process products. In order to prevent dust or water from penetrating into the motor and affecting its operation, the airtightness performance of the motor base is particularly important.

[0003] At present, the airtightness inspection method for the motor base generally adopts the forward airtightness test, that is, the motor base is completely immersed in a liquid, the holes on the motor base are blocked, high-pressure gas is filled into the motor base, and it is observed whether bubbles are generated. No bubbles are generated is regarded as qualified.

[0004] However, when the existing leak detection jig fills high-pressure gas into the motor base, the space inside the motor base is large, and the time required to fill the internal space of the motor base is relatively long. Moreover, when blocking the motor base, only the outer surface of the base is blocked, and the blocking effect is not good, which easily leads to low efficiency of airtightness detection and affects subsequent processes. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the utility model provides a leak detection jig for a motor base assembly to solve the problems that when the existing leak detection jig fills high-pressure gas into the motor base, the space inside the motor base is large, the time required to fill the internal space of the motor base is relatively long, and when blocking the motor base, only the outer surface of the base is blocked, the blocking effect is not good, which easily leads to low efficiency of airtightness detection and affects subsequent processes.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: A leak detection jig for a motor base assembly includes a bottom plate. Four corners of the top surface of the bottom plate are fixedly installed with support columns, and the top surface of the support columns is fixedly installed with a top plate; a sealing inner sleeve is fixedly installed on the top surface of the bottom plate; a lifting mechanism is fixedly installed on the top plate; a first limit seat is fixedly installed on the top surface of the bottom plate; a second limit seat is fixedly installed on the bottom surface of the lifting mechanism; a limiting mechanism is fixedly installed on the bottom surface of the lifting mechanism.

[0007] Thus, during the airtightness test, the motor base is placed on the sealing inner sleeve. At this time, the sealing inner sleeve is located inside the motor base and abuts against the motor base. The first limiting seat is opened, and the first limiting seat blocks the irregular hole on the side of the motor base. The lifting mechanism is opened, which drives the second limiting seat and the limiting mechanism to descend. After descending a certain distance, the second limiting seat and the limiting mechanism abut against the motor base. The second limiting seat blocks the irregular hole on the top surface of the motor base, and the limiting mechanism works with the sealing inner sleeve to limit the motor base. After sealing the motor base, the fixture and the motor base are placed in the liquid, and high-pressure gas is injected into the motor base. During the inflation process, due to the filling of the motor base by the sealing inner sleeve, the gas can quickly fill the interior of the motor base. This structure can limit the motor base and maintain the stability of the sealing effect, while reducing the inflation time during the testing process, thereby improving the testing efficiency.

[0008] Furthermore, the lifting mechanism includes a lifting cylinder fixedly installed on the top surface of the top plate. The output end of the lifting cylinder passes through the top plate and is fixedly connected to a connecting plate. Guide rods are evenly fixedly installed on the top surface of the connecting plate. The other end of the guide rod passes through the top plate, and the guide rod is slidably connected to the top plate.

[0009] In this way, when testing is required, the lifting cylinder is activated, which drives the connecting plate to descend. After the connecting plate descends a certain distance along the guide rod, the second limit seat and the limit mechanism, which are fixedly installed on the bottom surface of the connecting plate, abut against the motor base. After completing the airtightness test of the motor base, the lifting cylinder is activated again to raise the connecting plate. After the connecting plate rises a certain distance along the guide rod, the second limiting seat and the limiting mechanism fixedly installed on the bottom surface of the connecting plate release the limitation on the motor base. With this structure, the height of the second limiting seat and the limiting mechanism can be adjusted according to the specifications of the motor base, thereby improving the applicability of this fixture.

[0010] Furthermore, the first limiting seat includes a support plate fixedly installed on the top surface of the base plate, and a first cylinder is fixedly installed on the side of the support plate. The output end of the first cylinder passes through the support plate and is fixedly connected to a first sealing seat. Thus, the first limiting seat can block the irregular hole on the side of the motor base and improve the stability of the motor base during the testing process.

[0011] Furthermore, the second limiting seat includes a second cylinder fixedly installed on the bottom surface of the connecting plate. A limiting plate is fixedly installed at the output end of the second cylinder, and a second sealing seat is fixedly installed on the bottom surface of the limiting plate. Thus, the second limiting seat can block the irregular hole on the top surface of the motor base and improve the stability of the motor base during the testing process.

[0012] Furthermore, the limiting mechanism includes multiple support rods fixedly installed on the bottom surface of the connecting plate. A sliding sleeve is fixedly connected to the bottom surface of the support rod, and a connecting rod is slidably connected inside the sliding sleeve. A limiting rod is fixedly connected to the end of the connecting rod, and an elastic element is sleeved on the outside of the connecting rod. A waist-shaped hole is opened on one side of the sliding sleeve.

[0013] In this way, when testing is required, the lifting mechanism drives the limiting mechanism to descend. After descending a certain distance, one end of the limiting rod contacts the surface of the motor base, and the other end of the limiting rod pushes the end of the connecting rod into the interior of the sliding sleeve. After the connecting rod slides a certain distance along the inner groove of the sliding sleeve, it begins to squeeze the elastic element on the outer sleeve. Specifically, the elastic element is a damping spring. When the connecting rod squeezes the elastic element on the outer sleeve, the elastic element undergoes elastic deformation, thereby maintaining the uniform pressure of the connecting rod on the motor base. After the motor base is inspected, the lifting mechanism is activated, which raises the limiting mechanism. After rising a certain distance, the end of the limiting rod leaves the surface of the motor base, and the connecting rod slides along the inner groove of the sliding sleeve. After sliding a certain distance, it returns to the initial position, and the elastic element elastically resets. During the movement of the connecting rod, a pin can be externally connected to the side of the connecting rod, and the pin can move along the oblong hole. This structure can maintain uniform pressure on the motor base, reduce the possibility of excessive local pressure, and improve the stability of the motor base during the inspection process. At the same time, the pin can be externally connected to the side of the connecting rod, making it easy for staff to observe the length of the connecting rod's extension and retraction.

[0014] Furthermore, a wear-resistant block is fixedly installed at the end of the limiting rod, which can reduce the wear at the end of the limiting rod and reduce the possibility of the end of the limiting rod scratching the surface of the motor base.

[0015] Furthermore, a guide rail is fixedly installed on the outer side of the sealing inner sleeve, which can guide the high-pressure gas rushing into the sealing inner sleeve, improve the inflation speed, and thus improve the detection efficiency.

[0016] Furthermore, a guide rod is fixedly installed between the bottom plate and the top plate, and the guide rod is slidably connected to the connecting plate, thereby guiding the connecting plate to rise and fall and improving the stability of the connecting plate during the rising and falling process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of a leak detection fixture for an electric motor base assembly according to the present invention (with the electric motor base placed on it). Figure 2 This is a cross-sectional view of an embodiment of a leak detection fixture for an electric motor base assembly according to the present invention (with the electric motor base placed on it). Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4This is a three-dimensional structural schematic diagram of an embodiment of a leak detection fixture for an electric motor base assembly according to the present invention; Figure 5 This is a front view structural schematic diagram of an embodiment of a leak detection fixture for an electric motor base assembly according to the present invention; Figure 6 This is a right-side structural schematic diagram of an embodiment of a leak detection fixture for an electric motor base assembly according to the present invention; Reference numerals in the accompanying drawings: Base plate 1, support column 101, top plate 102; Sealing inner sleeve 2, guide rail 201; Lifting mechanism 3, lifting cylinder 301, connecting plate 302, guide rod 303; First limiting seat 4, support plate 401, first cylinder 402, first sealing seat 403; Second limiting seat 5, second cylinder 501, limiting plate 502, second sealing seat 503; Limiting mechanism 6, support rod 601, sliding sleeve 602, connecting rod 603, limiting rod 604, elastic element 605, and waist-shaped hole 606; Wear-resistant block 7; Guide rod 8. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] Example: like Figures 1-6 As shown, the present invention provides a leak detection fixture for an electric motor base assembly, comprising a base plate 1, with support columns 101 fixedly installed at the four corners of the top surface of the base plate 1, and a top plate 102 fixedly installed on the top surface of the support columns 101; a sealing inner sleeve 2, fixedly installed on the top surface of the base plate 1; a lifting mechanism 3, fixedly installed on the top plate 102; a first limiting seat 4, fixedly installed on the top surface of the base plate 1; a second limiting seat 5, fixedly installed on the bottom surface of the lifting mechanism 3; and a limiting mechanism 6, fixedly installed on the bottom surface of the lifting mechanism 3.

[0021] Thus, during the airtightness test, the motor base is placed on the sealing inner sleeve 2. At this time, the sealing inner sleeve 2 is located inside the motor base and abuts against the motor base. The first limiting seat 4 is opened, and the first limiting seat 4 blocks the irregular hole on the side of the motor base. The lifting mechanism 3 is opened, which drives the second limiting seat 5 and the limiting mechanism 6 to descend. After descending a certain distance, the second limiting seat 5 and the limiting mechanism 6 abut against the motor base. The second limiting seat 5 blocks the irregular hole on the top surface of the motor base, and the limiting mechanism 6 works with the sealing inner sleeve 2 to limit the motor base. After sealing the motor base, the fixture and the motor base are placed in the liquid, and high-pressure gas is injected into the motor base. During the inflation process, due to the filling of the motor base by the sealing inner sleeve 2, the gas can quickly fill the interior of the motor base. This structure can limit the motor base and maintain the stability of the sealing effect, while reducing the inflation time during the testing process, thereby improving the testing efficiency.

[0022] The lifting mechanism 3 includes a lifting cylinder 301 fixedly installed on the top surface of the top plate 102. The output end of the lifting cylinder 301 passes through the top plate 102 and is fixedly connected to a connecting plate 302. Guide rods 303 are evenly fixedly installed on the top surface of the connecting plate 302. The other end of the guide rod 303 passes through the top plate 102 and is slidably connected to the top plate 102.

[0023] In this way, when testing is required, the lifting cylinder 301 is activated, which drives the connecting plate 302 to descend. After the connecting plate 302 descends a certain distance along the guide rod 303, the second limit seat 5 and the limit mechanism 6, which are fixedly installed on the bottom surface of the connecting plate 302, abut against the motor base. After completing the airtightness test of the motor base, the lifting cylinder 301 is activated again, driving the connecting plate 302 to rise. After the connecting plate 302 rises a certain distance along the guide rod 303, the second limiting seat 5 and the limiting mechanism 6, which are fixedly installed on the bottom surface of the connecting plate 302, release the limitation on the motor base. With this structure, the height of the second limiting seat 5 and the limiting mechanism 6 can be adjusted according to the specifications of the motor base, thereby improving the applicability of this fixture.

[0024] The first limiting seat 4 includes a support plate 401 fixedly installed on the top surface of the base plate 1. A first cylinder 402 is fixedly installed on the side of the support plate 401. The output end of the first cylinder 402 passes through the support plate 401 and is fixedly connected to a first sealing seat 403. Thus, the first limiting seat 4 can block the irregular hole on the side of the motor base and improve the stability of the motor base during the testing process.

[0025] The second limiting seat 5 includes a second cylinder 501 fixedly installed on the bottom surface of the connecting plate 302. A limiting plate 502 is fixedly installed at the output end of the second cylinder 501. A second sealing seat 503 is fixedly installed on the bottom surface of the limiting plate 502. Thus, the second limiting seat 5 can block the irregular hole on the top surface of the motor base and improve the stability of the motor base during the testing process.

[0026] The limiting mechanism 6 includes multiple support rods 601 fixedly installed on the bottom surface of the connecting plate 302. A sliding sleeve 602 is fixedly connected to the bottom surface of the support rod 601. A connecting rod 603 is slidably connected inside the sliding sleeve 602. A limiting rod 604 is fixedly connected to the end of the connecting rod 603. An elastic element 605 is sleeved on the outside of the connecting rod 603. A waist-shaped hole 606 is opened on one side of the sliding sleeve 602.

[0027] When testing is required, the lifting mechanism 3 drives the limiting mechanism 6 to descend. After descending a certain distance, one end of the limiting rod 604 contacts the surface of the motor base, and the other end of the limiting rod 604 pushes the end of the connecting rod 603 into the interior of the sliding sleeve 602. After the connecting rod 603 slides a certain distance along the inner groove of the sliding sleeve 602, it begins to compress the elastic element 605 sleeved on the outside. Specifically, the elastic element 605 is a damping spring. When the connecting rod 603 compresses the elastic element 605 sleeved on the outside, the elastic element 605 undergoes elastic deformation, thereby maintaining the uniform pressure of the connecting rod 603 on the motor base. After the motor base is inspected, the lifting mechanism 3 is activated, which drives the limiting mechanism 6 to rise. After rising a certain distance, the end of the limiting rod 604 leaves the surface of the motor base, and the connecting rod 603 slides along the inner groove of the sliding sleeve 602. After sliding a certain distance, it returns to the initial position, and the elastic element 605 elastically resets. During the movement of the connecting rod 603, a pin can be externally connected to the side of the connecting rod 603. The pin can move along the waist-shaped hole 606. With this structure, the pressure on the motor base can be kept uniform, reducing the possibility of excessive local pressure and improving the stability of the motor base during the inspection process. At the same time, the pin can be externally connected to the side of the connecting rod 603, making it easy for the staff to observe the extension and retraction length of the connecting rod 603.

[0028] A wear-resistant block 7 is fixedly installed at the end of the limit rod 604, which can reduce the wear at the end of the limit rod 604 and reduce the possibility of the end of the limit rod 604 scratching the surface of the motor base.

[0029] A guide rail 201 is fixedly installed on the outside of the inner sealing sleeve 2, which can guide the high-pressure gas into the inner sealing sleeve 2, improve the inflation speed, and thus improve the detection efficiency.

[0030] A guide rod 8 is fixedly installed between the base plate 1 and the top plate 102. The guide rod 8 is slidably connected to the connecting plate 302, thereby guiding the connecting plate 302 to rise and fall, and improving the stability of the connecting plate 302 during the rising and falling process.

[0031] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A leak detection fixture for an electric motor base assembly, characterized in that, include: The base plate (1) has support columns (101) fixedly installed at the four corners of the top surface of the base plate (1), and a top plate (102) fixedly installed on the top surface of the support columns (101). A sealing inner sleeve (2) is fixedly installed on the top surface of the base plate (1); A lifting mechanism (3) is fixedly installed on the top plate (102); The first limiting seat (4) is fixedly installed on the top surface of the base plate (1); The second limiting seat (5) is fixedly installed on the bottom surface of the lifting mechanism (3); Limiting mechanism (6) is fixedly installed on the bottom surface of lifting mechanism (3).

2. The leak detection fixture for an electric motor frame assembly as described in claim 1, characterized in that: The lifting mechanism (3) includes a lifting cylinder (301) fixedly installed on the top surface of the top plate (102). The output end of the lifting cylinder (301) passes through the top plate (102) and is fixedly connected to a connecting plate (302). Guide rods (303) are evenly fixedly installed on the top surface of the connecting plate (302). The other end of the guide rod (303) passes through the top plate (102). The guide rod (303) is slidably connected to the top plate (102).

3. The leak detection fixture for an electric motor frame assembly as described in claim 1, characterized in that: The first limiting seat (4) includes a support plate (401) fixedly installed on the top surface of the base plate (1). A first cylinder (402) is fixedly installed on the side of the support plate (401). The output end of the first cylinder (402) passes through the support plate (401) and is fixedly connected to a first sealing seat (403).

4. The leak detection fixture for an electric motor frame assembly as described in claim 2, characterized in that: The second limiting seat (5) includes a second cylinder (501) fixedly installed on the bottom surface of the connecting plate (302), a limiting plate (502) fixedly installed at the output end of the second cylinder (501), and a second sealing seat (503) fixedly installed on the bottom surface of the limiting plate (502).

5. A leak detection fixture for an electric motor frame assembly as described in claim 2, characterized in that: The limiting mechanism (6) includes multiple support rods (601) fixedly installed on the bottom surface of the connecting plate (302). A sliding sleeve (602) is fixedly connected to the bottom surface of the support rod (601). A connecting rod (603) is slidably connected inside the sliding sleeve (602). A limiting rod (604) is fixedly connected to the end of the connecting rod (603). An elastic element (605) is sleeved on the outside of the connecting rod (603). A waist-shaped hole (606) is opened on one side of the sliding sleeve (602).

6. The leak detection fixture for an electric motor frame assembly as described in claim 5, characterized in that: A wear-resistant block (7) is fixedly installed at the end of the limiting rod (604).

7. The leak detection fixture for an electric motor frame assembly as described in claim 1, characterized in that: A guide rail (201) is fixedly installed on the outside of the sealing inner sleeve (2).

8. A leak detection fixture for an electric motor frame assembly as described in claim 2, characterized in that: A guide rod (8) is fixedly installed between the bottom plate (1) and the top plate (102), and the guide rod (8) is slidably connected to the connecting plate (302).

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