Stepping motor shell sealing performance detection equipment

Abstract

The utility model discloses a stepping motor housing sealing performance detection device, and specifically relates to the motor detection technology field, the stepping motor housing sealing performance detection device comprises a workbench, an air pressure detection sealing cover and a sealing door plate, the air pressure detection sealing cover is arranged above a mounting groove, and the sealing door plate is arranged in an inner cavity of one group of openings; according to the utility model, an operator can place the motor into the sealing cover for sealing detection only by easily opening the sealing door plate, so that the operator does not need to spend a lot of time to operate a complex mechanical structure during batch detection, the detection turnover time of each motor is greatly shortened, the operation time is saved, and the detection efficiency is improved. More motor detection tasks can be conveniently completed in the same time, a large amount of space does not need to be reserved for movement of complex mechanical parts through the arrangement of the sealing door plate, the space can be more effectively utilized in a detection place with limited space, complex mechanical movement is not needed, and the detection efficiency is improved. Therefore, dangerous accidents caused by equipment faults in the detection process are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor detection technical field more specifically, the utility model relates to a kind of stepping motor shell sealing property detection equipment. BACKGROUND

[0002] Motor shell is the shell for encapsulating coil and other electronic components, and currently in the use of motor, motor is usually used outdoors, if the sealing property of motor shell is not strong, the service life of motor will be affected;

[0003] After searching, the existing patent publication No. CN216524630U discloses a sealing performance detection system for motor, which comprises a detection machine and a supporting table. The upper part of the supporting table is fixedly installed with a table top. The upper part of the table top is installed with a top plate through a stand column. The upper part of the top plate is installed with an air cylinder. The upper part of the table top is provided with a box body. One side of the box body is installed with an air nozzle. The output shaft of the air cylinder is connected with a sealing plate. The upper part of the sealing plate is installed with a guide column. A moving structure is arranged between the box body and the table top. A sealing structure is arranged between the box body and the sealing plate. The sealing performance detection system for motor disclosed by the utility model is convenient to move the box body, making it more convenient to take and place the motor. Moreover, a limiting device is arranged to ensure the accuracy of the positioning of the box body. In addition, the sealing property between the sealing plate and the box body is improved, the leakage phenomenon is reduced, the accuracy of detection is improved, and the performance is better. The inventor found the following problems in the process of implementing the utility model:

[0004] The existing sealing performance detection system has complex mechanical structures for moving the motor placement box in the batch detection of motors. The complex mechanical moving structure leads to a long detection turnaround time for each motor. As the production scale expands, the number and speed of motor detection requirements are increasing, which affects the detection efficiency. Moreover, the space occupied by several detection devices needs to be compressed as much as possible in batch detection places. The mechanical moving structure needs a certain space to provide a range of activities, which wastes a lot of space. The complex mechanical moving parts such as lead screws and sliding blocks may have faults or human errors during movement, which may cause safety accidents and affect the personal safety of operators.

[0005] Therefore, a stepping motor shell sealing property detection equipment is proposed to solve the problems in the background technology. Utility model content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a stepping motor shell sealing property detection equipment to solve the problems in the background technology.

[0007] To achieve the above object, the utility model provides following technical scheme: a step motor casing sealing detection equipment, including work table, gas pressure detection seal cover and seal door board, the centre of work table upper end is equipped with the mounting groove, the inner surface of mounting groove is provided with a primary seal layer, gas pressure detection seal cover is installed in the upper of mounting groove, the four all of gas pressure detection seal cover is equipped with opening, and the bottom of gas pressure detection seal cover is provided with sealing ring, the inner chamber of one group of opening is provided with seal door board, the edge of seal door board all is provided with secondary seal layer, the left side of seal door board front end surface is welded with handle, the below of one group opening all is provided with limit ring of handle and one group, the inner chamber of two group limit ring is installed with fixed bolt;

[0008] In addition, the inner chamber of three group opening is all installed with transparent glass window, both sides of gas pressure detection seal cover are provided with connecting lug, the rear of left side of work table is installed with vacuum pump, the output of vacuum pump is installed with air suction pipe, and the front of vacuum pump is installed with air pump, the output of air pump is installed with air supply pipe, the right side of gas pressure detection seal cover upper end is provided with air pressure sensor.

[0009] Preferably, the gas pressure detection seal cover is inserted into the inner chamber of the mounting groove through the sealing ring, and abuts against the primary seal layer to realize sealing.

[0010] Preferably, the seal door board is movably connected to one side of one group of openings through a hinge, and abuts against the inner surface of one group of openings through the secondary seal layer.

[0011] Preferably, the positions of the two groups of limit rings are parallel corresponding to the same vertical line, and one end of the fixed bolt is inserted into the inner chambers of the two groups of limit rings in sequence to realize limiting.

[0012] Preferably, one end of the air suction pipe away from the vacuum pump is installed on the surface of one group of transparent glass windows, and one end of the air supply pipe away from the air pump is installed on the surface of one group of transparent glass windows.

[0013] Preferably, the primary seal layer, the sealing ring and the secondary seal layer are all made of silica gel material, and the fixed bolt is in the shape of L.

[0014] The utility model discloses the technical effect and advantage:

[0015] 1. Compared with the prior art, the step motor shell sealing detection equipment can put the motor into the sealing cover for sealing detection by only easily opening the sealing door plate by the operator, so that the operator does not need to spend a lot of time to operate the complex mechanical structure during batch detection, greatly shortens the detection turnaround time of each motor, thereby saving the operation time and facilitating to complete more motor detection tasks in the same time.

[0016] 2. Compared with the prior art, the step motor shell sealing detection equipment does not need to reserve a large space for the movement of complex mechanical components by setting the sealing door plate, can more effectively utilize the space in the limited detection place, and does not need complex mechanical movement, thereby reducing the dangerous accidents caused by equipment failure during detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic view of the utility model.

[0018] Figure 2 It is a three-dimensional structure schematic view of the installation groove of the utility model.

[0019] Figure 3 It is a three-dimensional structure schematic view of the air pressure detection sealing cover of the utility model.

[0020] Figure 4 It is a three-dimensional structure schematic view of the air pressure detection sealing cover of the utility model. Figure 1

[0021] The reference signs are: 1, workbench; 2, installation groove; 3, primary sealing layer; 4, air pressure detection sealing cover; 5, opening; 6, sealing ring; 7, sealing door plate; 71, secondary sealing layer; 8, handle; 9, limiting ring; 10, fixed bolt; 11, transparent glass window; 12, connecting lug; 13, vacuum pump; 14, air suction pipe; 15, air pump; 16, air supply pipe; 17, air pressure sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment 1

[0023] As shown in the accompanying drawings, Figures 1 to 4 ​The illustrated one kind step motor housing leak detection equipment, including workbench 1, gas pressure detection seal cover 4 and seal door plate 7, the center of workbench 1 upper end is provided with installation groove 2, the inner surface of installation groove 2 is provided with primary seal layer 3, gas pressure detection seal cover 4 is installed in the upper of installation groove 2, the four around of gas pressure detection seal cover 4 is provided with opening 5, and the bottom of gas pressure detection seal cover 4 is provided with sealing ring 6, seal door plate 7 is arranged in the inner chamber of one group of opening 5, and the edge of seal door plate 7 is provided with secondary seal layer 71, and the left side of the front end surface of seal door plate 7 is welded with handle 8, and the lower side of one group of opening 5 is provided with limit ring 9, and the inner chamber of two groups of limit ring 9 is installed with fixed bolt 10;

[0024] In addition, the inner chamber of three groups of opening 5 is installed with transparent glass window 11, and the both sides of gas pressure detection seal cover 4 are provided with connecting lug 12, and the rear of the left side of workbench 1 is installed with vacuum pump 13, the output end of vacuum pump 13 is installed with air suction pipe 14, and the front of vacuum pump 13 is installed with air pump 15, the output end of air pump 15 is installed with air supply pipe 16, and the right side of the upper end of gas pressure detection seal cover 4 is provided with air pressure sensor 17.

[0025] In addition, the inner chamber of three groups of opening 5 is installed with transparent glass window 11, and the both sides of gas pressure detection seal cover 4 are provided with connecting lug 12, and the rear of the left side of workbench 1 is installed with vacuum pump 13, the output end of vacuum pump 13 is installed with air suction pipe 14, and the front of vacuum pump 13 is installed with air pump 15, the output end of air pump 15 is installed with air supply pipe 16, and the right side of the upper end of gas pressure detection seal cover 4 is provided with air pressure sensor 17.

[0026] The sealing door plate 7 is installed in the inner cavity of one group of openings 5, and the secondary sealing layer 71 arranged at the edge enhances the sealing effect. When the sealing door plate 7 is closed, the secondary sealing layer 71 closely fits the edge of the opening 5, further preventing gas leakage from this part. The handle 8 allows the operator to easily and conveniently open or close the sealing door plate 7. The limiting ring 9 is installed below the handle 8 and one group of openings 5, and cooperates with the fixed pin 10 to fix the sealing door plate 7. When the sealing door plate 7 is closed, the fixed pin 10 is inserted into the inner cavity of the limiting ring 9, which can prevent the sealing door plate 7 from being accidentally opened during the detection process, ensuring the safety and stability of the detection process, avoiding the imbalance of air pressure and the failure of detection caused by the opening of the sealing door plate 7. The air exhaust pipe 14 installed at the rear of the left side of the workbench 1 is used to exhaust the air in the air pressure detection sealing cover 4, realizing the vacuumizing operation. The air pump 15 can inflate the air pressure detection sealing cover 4 through the air supply pipe 16. By adjusting the output air pressure and inflation time of the air pump 15, different working conditions can be simulated to test the sealing performance of the motor shell under the inflation state. The air pressure sensor 17 located on the right side of the upper end of the air pressure detection sealing cover 4 can detect the air pressure change in the air pressure detection sealing cover 4 in real time. During the detection process, according to the measurement data of the air pressure sensor 17, the sealing performance of the motor shell can be accurately judged. Example 2

[0027] Based on the embodiment 1, the scheme in embodiment 1 is further refined in combination with the specific working mode as follows: Figures 1 to 4 as shown in the following description:

[0028] As a preferred embodiment, the air pressure detection sealing cover 4 is inserted into the inner cavity of the installation slot 2 through the sealing ring 6 and abuts against the primary sealing layer 3 to realize sealing. The four groups of connecting ears 12 are connected with the workbench 1 through bolts. Further, when the air pressure detection sealing cover 4 is inserted into the installation slot 2 through the sealing ring 6 and abuts against the primary sealing layer 3, it closely fits the inner wall of the installation slot 2, thereby forming a sealing structure to prevent gas leakage from the gap between the bottom of the air pressure detection sealing cover 4 and the installation slot 2. The four groups of connecting ears 12 are connected with the workbench 1 through bolts, so that the connection between the air pressure detection sealing cover 4 and the workbench 1 is very firm, avoiding air pressure leakage.

[0029] As a preferred embodiment, the sealing door plate 7 is movably connected to one side of one of the groups of openings 5 through a hinge, and the sealing door plate 7 abuts against the inner surface of one of the groups of openings 5 through a secondary sealing layer 71. Further, the sealing door plate 7 is movably connected to one side of the opening 5 through a hinge, so that the sealing door plate 7 can be flexibly opened and closed, facilitating the operator to quickly put or take out the motor from the air pressure detection sealing cover 4 during the detection process. When the sealing door plate 7 abuts against the inner surface of the opening 5 through the secondary sealing layer 71, a good sealing effect can be formed. The secondary sealing layer 71 can fill the small gap between the door plate and the opening 5, preventing gas leakage from this part. When vacuumizing or inflating, even if there is a large air pressure difference between the inside and outside of the air pressure detection sealing cover 4, this close abutment sealing method can effectively maintain the stability of the air pressure in the air pressure detection sealing cover 4, ensuring the accuracy of the motor sealing detection.

[0030] As a preferred embodiment, the positions of the two groups of limiting rings 9 are parallel corresponding to the same vertical line, and one end of the fixed pin 10 is inserted into the inner cavities of the two groups of limiting rings 9 to realize limiting; further, the positions of the two groups of limiting rings 9 are parallel corresponding to the same vertical line, providing an accurate insertion path for the fixed pin 10. When the fixed pin 10 is inserted into the inner cavities of the two groups of limiting rings 9, the position of the sealing door plate 7 can be accurately limited, and it can be ensured that the sealing door plate 7 will not be pushed away by the air pressure.

[0031] As a preferred embodiment, one end of the air suction pipe 14 away from the vacuum pump 13 is installed on the surface of one of the groups of transparent glass windows 11, and one end of the air supply pipe 16 away from the air pump 15 is installed on the surface of one of the groups of transparent glass windows 11; further, the vacuum pump 13 draws air inside the air pressure detection sealing cover 4 through the air suction pipe 14, facilitating subsequent air pressure detection, and the air pump 15 sends air into the inside of the air pressure detection sealing cover 4 through the air supply pipe 16, so that whether the motor housing inside leaks can be detected through the threshold value preset by the air pressure sensor 17.

[0032] As a preferred embodiment, the primary sealing layer 3, the sealing ring 6 and the secondary sealing layer 71 are all made of silica gel material, and the fixed pin 10 is in the shape of L; further, the silica gel material has good elasticity and softness, and the primary sealing layer 3, the sealing ring 6 and the secondary sealing layer 71 are made of silica gel material, which can elastically deform when subjected to pressure, thereby better filling the small gap between the sealing surfaces and ensuring good sealing effect. The L-shaped shape enables the fixed pin 10 to provide stable limiting action after being inserted into the inner cavities of the two groups of limiting rings 9.

[0033] The working process of the utility model is as follows: firstly, the air pressure detection seal cover 4 is inserted into the inner cavity of the installation slot 2 at the upper end center of the workbench 1 through the sealing ring 6 at the bottom thereof, and abuts against the primary sealing layer 3 of the inner surface of the installation slot 2, since the sealing ring 6 and the primary sealing layer 3 are both of silica gel material, they are closely adhered by utilizing the elasticity and softness thereof, forming the sealing structure at the bottom, preventing the gas from leaking between the bottom of the air pressure detection seal cover 4 and the workbench 1, simultaneously, the four groups of connecting ears 12 at the two sides of the air pressure detection seal cover 4 are connected and engaged with the workbench 1 through bolts, so that the air pressure detection seal cover 4 is fixed firmly on the workbench 1, further ensuring the sealing effect of fastening;

[0034] Subsequently, the operating personnel open the sealing door plate 7 through the handle 8, the sealing door plate 7 is movably connected with one side of one group of openings 5 through a hinge, so that it can be opened flexibly, facilitating the operating personnel to put the motor to be detected into the air pressure detection seal cover 4, after the motor is put in, the operating personnel closes the sealing door plate 7, at this time, the secondary sealing layer 71 at the edge of the sealing door plate 7 abuts against the inner surface of the opening 5, the secondary sealing layer 71 is also of silica gel material, and can fill the small gap between the sealing door plate 7 and the opening 5, forming a good seal, preventing the gas from leaking from this part, then, one end of the L-shaped fixed bolt 10 is sequentially inserted into the inner cavities of the two groups of limiting rings 9 located below the handle 8 and the opening 5, the two groups of limiting rings 9 correspond in parallel on the same vertical line, providing an accurate insertion path for the fixed bolt 10, so that the fixed bolt 10 can accurately limit the position of the sealing door plate 7, in the subsequent air extraction and inflation operation, the sealing door plate 7 will not be accidentally opened due to the change of air pressure;

[0035] When detecting, the vacuum pump 13 at the left rear of the workbench 1 is started, the vacuum pump 13 extracts the air in the air pressure detection seal cover 4 through the air extraction pipe 14 connected to the output end thereof, starting to simulate the working state of the motor in the vacuum environment, during the air extraction process, the air pressure sensor 17 at the right upper end of the air pressure detection seal cover 4 monitors the air pressure change in the air pressure detection seal cover 4 in real time, since the motor shell is in the simulated vacuum environment in the air pressure detection seal cover 4, if the motor shell has leakage, the air pressure drop speed in the air pressure detection seal cover 4 will be different from that in the normal case without leakage, by comparing the pre-set air pressure threshold value or the normal air pressure drop curve, whether the motor shell has leakage can be judged, so that the air extraction air pressure detection is completed;

[0036] After the air extraction detection is completed, the vacuum pump 13 is closed, and the air pump 15 located in front of the vacuum pump 13 is started. The air pump 15 sends air into the inside of the air pressure detection sealed cover 4 through the air sending pipe 16 at the output end of the air pump 15. By adjusting the output air pressure and the air charging time and other parameters of the air pump 15, the state of the motor under different positive pressure working conditions can be simulated. During the air charging process, the air pressure sensor 17 also detects the air pressure change in the air pressure detection sealed cover 4 in real time. If the motor shell exists leakage, the air pressure rise in the air pressure detection sealed cover 4 will not meet the expectation. According to the comparison between the measurement data of the air pressure sensor 17 and the pre-set air pressure threshold value, the sealing performance of the motor shell under the air charging state can be accurately judged. Then, the operator pulls out the fixed bolt 10, opens the sealing door plate 7, and takes out the detected motor from the air pressure detection sealed cover 4 through the handle 8. The whole motor shell sealing performance detection process is completed. During the whole detection process, the transparent glass window 11 installed in the inner cavity of the other three groups of openings 5 provides a visual observation window for the operator, which facilitates the operator to observe the motor condition in the air pressure detection sealed cover 4 without opening the sealing door plate 7, such as observing whether there is abnormal deformation or bubble generation phenomenon of the motor during the air extraction or air charging process, and assisting in judging the sealing performance of the motor. The above is the working principle of the stepping motor shell sealing performance detection equipment.

Claims

1. A kind of step motor housing leak detection equipment, including workbench (1), air pressure detection seal cover (4) and seal door plate (7), it is characterized in that: The upper end of the workbench (1) is provided with a mounting groove (2) in the center, the inner surface of the mounting groove (2) is provided with a primary sealing layer (3), the air pressure detection sealing cover (4) is installed above the mounting groove (2), the air pressure detection sealing cover (4) is provided with an opening (5) around, and the bottom of the air pressure detection sealing cover (4) is provided with a sealing ring (6), the sealing door plate (7) is arranged in the inner cavity of one of the openings (5), the edge of the sealing door plate (7) is provided with a secondary sealing layer (71), the left side of the front end face of the sealing door plate (7) is welded with a handle (8), the handle (8) and the lower side of one of the openings (5) are provided with a limiting ring (9), and the inner cavities of the two limiting rings (9) are provided with a fixed bolt (10). The inner cavities of the other three openings (5) are provided with transparent glass windows (11), the air pressure detection sealing cover (4) is provided with a connecting lug (12) on the left side, the vacuum pump (13) is installed at the rear of the left side of the workbench (1), the output end of the vacuum pump (13) is provided with an air suction pipe (14), and the front of the vacuum pump (13) is provided with an air pump (15), the output end of the air pump (15) is provided with an air supply pipe (16), and the right side of the upper end of the air pressure detection sealing cover (4) is provided with an air pressure sensor (17).

2. The step motor housing leak detection apparatus of claim 1, wherein: The air pressure detection sealing cover (4) is inserted into the inner cavity of the mounting groove (2) through the sealing ring (6) and abuts against the primary sealing layer (3) to realize sealing, and the four connecting lugs (12) are connected with the workbench (1) through bolts.

3. The step motor housing leak detection apparatus of claim 2, wherein: The sealing door plate (7) is movably connected with one side of one of the openings (5) through a hinge, and the sealing door plate (7) abuts against the inner surface of one of the openings (5) through the secondary sealing layer (71).

4. The step motor housing leak detection apparatus of claim 1, wherein: The positions of the two limiting rings (9) are parallel corresponding to the same vertical line, and one end of the fixed bolt (10) is inserted into the inner cavities of the two limiting rings (9) in sequence to realize limiting.

5. The step motor housing leak detection apparatus of claim 1, wherein: The end of the air suction pipe (14) away from the vacuum pump (13) is installed on the surface of one of the transparent glass windows (11), and the end of the air supply pipe (16) away from the air pump (15) is installed on the surface of one of the transparent glass windows (11).

6. The step motor housing leak detection apparatus of claim 4, wherein: The primary sealing layer (3), the sealing ring (6) and the secondary sealing layer (71) are all made of silica gel, and the fixed bolt (10) is L-shaped.

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