Motor stator silicon steel sheet stacking slotted hole detection device

Abstract

The utility model discloses a motor stator silicon steel sheet stacking slotted hole detection device, which relates to the compressor processing auxiliary technical field and comprises a fixed top cover, a fixed main body is arranged below the fixed top cover and is arranged on a fixed base, a plurality of detection blades are arranged at the top edge of the fixed base, and the detection blades are arranged on the fixed top cover. The plurality of detection blades form a circular ring belt, and the ring belt is positioned outside the fixed main body; the stator silicon steel sheet stacking slotted hole calibration device can visually calibrate and detect stator silicon steel sheet stacking slotted holes within a set tolerance, in the manual detection process, the influence of human subjective factors on detection data is avoided, stators smaller than the dimensional tolerance range can be effectively detected, and the detection accuracy and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor machining assistance, in particular to a compressor variable frequency motor stator silicon steel sheet stacking slot hole detection device. Background Art

[0002] As the core equipment in the refrigeration and air conditioning industries, the stability and reliability of the compressor's performance are crucial to the operation of the entire system. As the key component of the variable frequency motor, the stacking of the silicon steel sheets and the processing quality of the slots of the stator directly affect the performance of the motor.

[0003] During the compressor manufacturing process, the stator slots need to be inspected after the stator silicon steel sheets of the stamped stator variable frequency motor are stacked. At present, the traditional manual inspection or simple mechanical inspection methods are generally used to inspect the stacked slots of the stator silicon steel sheets of the compressor variable frequency motor. These methods have many shortcomings. For example, manual inspection using measuring instruments is easily affected by subjective factors, and the inspection accuracy is difficult to guarantee; and although the mechanical inspection method can improve the inspection efficiency to a certain extent, it is generally a single-piece inspection, and the inspection range is too small, and only the slot width can be inspected. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a motor stator silicon steel sheet stacking slot detection device, which is used for stator slot detection of compressor variable frequency motor. Calibration detection is performed within the set tolerance of the stator. Stators smaller than the size tolerance range will be detected intuitively. The detection accuracy is high and the operation is simple, which can avoid personnel detection data errors and cause great losses.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A motor stator silicon steel sheet stacking slot detection device comprises a fixed top cover, a fixed body is arranged below the fixed top cover, the fixed body is arranged on a fixed base, a plurality of detection blades are arranged at the top edge of the fixed base, the plurality of detection blades form a circular ring belt, and the ring belt is located outside the fixed body.

[0007] According to a further technical solution, a first protrusion is formed at the center of the axis of the bottom of the fixed top cover.

[0008] According to a further technical solution, a second groove is provided at the center of the axis at the top of the fixed body, and the second groove is matched with the first protrusion, and the two are tightly fitted.

[0009] According to a further technical solution, a second protrusion is formed at the axial center of the bottom of the fixed body.

[0010] According to a further technical solution, a plurality of vertical detection grooves are provided on the outer wall of the fixed body.

[0011] According to a further technical solution, the fixed base includes a first base column and a second base column, and the second base column is fixed above the first base column and is tightly connected.

[0012] According to a further technical solution, a third groove is provided at the center of the axis at the top of the second bottom column, and the third groove is matched with the second protrusion at the bottom of the fixed body, and the two are tightly fitted.

[0013] According to a further technical solution, the detection blade includes a detection column, a detection head and a detection strip, the top surface of the detection column is fixedly connected to the bottom surface of the detection head, and the detection strip is fixedly connected to a side surface of the detection column close to the fixed body.

[0014] According to a further technical solution, the detection strip is embedded in a detection groove on the fixed body.

[0015] According to a further technical solution, a detection protrusion is provided on a side of the detection head facing the fixed body.

[0016] Beneficial effects of the utility model:

[0017] The utility model proposes a motor stator silicon steel sheet stacking slot detection device, which can intuitively calibrate and detect the stator silicon steel sheet stacking slots within a set tolerance. During the detection process, the overall shape and size of the slots can be comprehensively detected to avoid the influence of human subjective factors on the detection data. Stators smaller than the size tolerance range will be effectively detected, thereby improving the accuracy and precision of the detection.

[0018] The utility model is provided with a plurality of annular detection blades, which correspond to the size and shape of the qualified stator silicon steel sheet stack slot holes and are used to detect the shape and size defects of the stator slot holes, and can also detect the waste material and verticality problems in the stator silicon steel sheet stack. At the same time, detection protrusions are arranged on the detection blades, and when detecting the shape and size of the stator stack slot holes, the inner side walls of the slot holes can also be detected, thereby realizing comprehensive detection of the slot holes.

[0019] The fixed top cover, fixed body and fixed base of the utility model are all provided with protrusions and grooves that can be embedded in each other. Through the mutual embedding of the protrusions and the grooves, a stable connection between the fixed top cover, the fixed body and the fixed base is achieved. At the same time, the stability and reliability of the detection device are guaranteed together with the fastener bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 Schematic diagram of the overall structure of the motor stator silicon steel sheet stacking slot detection device of this embodiment;

[0022] Figure 2 This is a schematic diagram of the structure of the fixed top cover of the detection device of this embodiment;

[0023] Figure 3 is a cross-sectional view of a fixed top cover of the detection device of this embodiment;

[0024] Figure 4 is a cross-sectional view of the fixed body of the detection device of this embodiment;

[0025] Figure 5 This is a schematic diagram of the structure of the fixed base of the detection device of this embodiment;

[0026] Figure 6 is a cross-sectional view of a fixed base of the detection device of this embodiment;

[0027] Figure 7 is a top view of a detection blade of the detection device of this embodiment;

[0028] Figure 8 is a side view of a detection blade of the detection device of this embodiment;

[0029] Fig. 9 Schematic diagram of the structure of the detection head of the detection device of this embodiment.

[0030] Among them, 1-fixed top cover, 101-first protrusion, 102-first groove, 2-fixed body, 201-second groove, 202-second protrusion, 203-detection groove, 3-fixed base, 301-first bottom column, 302-second bottom column, 303-third groove, 304-fourth groove, 4-detection blade, 401-detection head, 402-detection column, 403-third protrusion, 404-detection protrusion, 405-detection strip, 406-fourth protrusion. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] See also Figure 1 As shown, an embodiment of the utility model provides a motor stator silicon steel sheet stacking slot detection device, including a fixed top cover 1, a fixed body 2 is provided below the fixed top cover 1, the fixed body 2 is arranged on a fixed base 3, and a plurality of detection blades 4 are provided at the top edge of the fixed base 3, and the plurality of detection blades 4 form a circular ring belt, and the ring belt is located outside the fixed body 2.

[0033] In this embodiment, if Figure 2 As shown, Figure 2 The bottom structure of the fixed top cover 1 is specifically as follows: a first protrusion 101 is formed at the axis center of the bottom of the fixed top cover 1, and four screw holes are equidistantly formed on the periphery of the first protrusion 101 for installing fixing screws.

[0034] like Figure 3 As shown, a plurality of first grooves 102 are provided on the bottom edge of the fixed top cover 1 for fixing the detection blade 4 .

[0035] The first protrusion 101 is embedded in the second groove 201 of the fixed body 2 to make the fixed top cover 1 and the fixed body 2 fit tightly. The fixing screw is inserted into the screw hole and penetrates into the top of the fixed body 2 to firmly connect the fixed top cover 1 and the fixed body 2 to prevent loosening or displacement during the detection process, thereby ensuring the stability and reliability of the detection device.

[0036] Preferably, the fixed top cover 1 is a circular structure, which is matched with the fixed body 2, and the fixed top cover 1 and the fixed body 2 have the same cross-sectional size and the same diameter.

[0037] In this embodiment, if Figure 4 As shown, a second groove 201 is opened at the center of the axis at the top of the fixed body 2, and the second groove 201 is adapted to the first protrusion 101, and the two are tightly fitted; the second groove 201 is adapted to the first protrusion 101 in shape and size, and the fixed top cover 1 and the fixed body 2 are fixedly connected together through the tight fitting of the two to prevent movement or falling off; a second protrusion 202 is formed at the center of the axis at the bottom of the fixed body 2, which is used to fix the fixed body 2 and the fixed base 3.

[0038] like Figure 1 As shown, the fixed body 2 is a cylindrical structure, and a plurality of vertical detection grooves 203 are provided on its outer wall, which are engaged with the detection strips 405 of the detection blade 4, and are used to detect the inner peripheral wall of the variable frequency stator to be tested.

[0039] In this embodiment, if Figure 5 As shown, the fixed base 3 includes a first base column 301 and a second base column 302. The second base column 302 is fixed above the first base column 301 and is tightly connected. The diameter of the second base column 302 is smaller than that of the first base column 301. The first base column 301 is used to provide stable support, and the second base column 302 is used for fixed connection with other structures.

[0040] like Figure 6As shown, a third groove 303 is opened at the center of the axis at the top of the second base column 302, and the third groove 303 is adapted to the second protrusion 202 at the bottom of the fixed body 2, and the two are tightly fitted; the third groove 303 is adapted to the second protrusion 202 in shape and size, and the fixed body 2 and the fixed base 3 are fixedly connected together through the tight fit of the two.

[0041] Furthermore, four screw holes are equidistantly opened on the outer periphery of the third groove 303, and screws are passed through the screw holes, directly passing through the second base column 302 and into the first base column 301. The first base column 301 and the second base column 302 are firmly connected together by the tightening force of the bolts, thereby jointly providing a stable supporting force to ensure the accuracy and reliability of the detection.

[0042] Furthermore, a plurality of fourth grooves 304 are provided on the top edge of the second base column 302 for fixing the detection blades.

[0043] In this embodiment, if Figure 1 As shown, the detection blades 4 are fixed at the top edge of the second bottom column 302 , and a plurality of detection blades 4 form a circular ring belt, which is located outside the fixed body 2 .

[0044] like Figure 7 , Figure 8 and Fig. 9 As shown, the detection blade 4 includes a detection column 402, a detection head 401 and a detection strip 405. The top surface of the detection column 402 is fixedly connected to the bottom surface of the detection head 401, and the detection strip 405 is fixedly connected to the side of the detection column 402 close to the fixed body 2, and the detection strip 405 extends toward the detection head 401 and exceeds the detection head 401; the detection column 402 is a quadrangular prism structure, which is adapted to the overall shape of the slot; the detection head 401 is a three-dimensional trapezoidal structure, and a detection protrusion 404 is provided on the side of the detection head 401 facing the detection strip 405, which cooperates with the detection strip 405, and the inner side wall of the slot passes between the detection strip and the detection protrusion, which is used to detect the thickness and shape of the inner side wall of the slot, and the detection strip and the detection protrusion can allow the inner wall of the variable frequency stator to be tested to pass through, and the detection protrusion 404 is used to detect whether the inner wall of the stacked slot of the variable frequency stator is qualified.

[0045] like Figure 1 , Figure 7 and Figure 8As shown, the detection strip 405 is composed of a plurality of rectangular strips connected together. The width of the rectangular strips decreases successively from the detection column 402 to the detection head 401, and is embedded in the detection groove 203 on the fixed body 2 to play a guiding role. The detection strip 405, the detection head 401, and the detection column 402 are guided in sequence to ensure that the variable frequency stator can maintain a stable posture and direction during the passage process to avoid displacement or tilt affecting the detection result; the width of the detection strip 405 gradually changes from narrow to wide, which can better place the variable frequency stator to be tested into the detection head 401 for detection, and continue to guide it to the detection column 402 for detection, ensuring the stability and accuracy of the detection.

[0046] like Figure 8 As shown, a fixing plate is provided on one side of the detection blade 4, and the measuring column 402, the detection head 401 and the detection strip 405 are all fixed on the fixing plate. The overall length of the fixing plate is longer than the overall length of the detection blade 4. A fourth protrusion 406 extends from the end of the fixing plate close to the detection strip 405, and a third protrusion 403 extends from the end of the fixing plate close to the detection column 402.

[0047] The third protrusion 403 is engaged with the fourth groove 304 provided on the second bottom column 302, and is adapted in size and shape, so as to firmly fix the detection blade on the fixed base; the fourth protrusion 406 is engaged with the first groove 102 provided on the fixed top cover, and is adapted in size and shape, so as to firmly fix the detection blade on the fixed top cover. In other words, the detection blade is fixed between the fixed top cover and the fixed base through the combination of concave and convex inlays, and is embedded outside the fixed body, so as to detect the slot.

[0048] It should be noted that the shape of the detection blade 4 should correspond to the shape of the slot hole to achieve comprehensive detection of the slot hole; the width and thickness of the detection blade 4 are designed based on the size of the stacked slot hole of the variable frequency stator plus a set tolerance, and its height should be higher than the height of the slot hole. When detecting the stacked slot holes of variable frequency stators of different models, those skilled in the art can flexibly set the detection device to adapt to various models, and this embodiment does not make specific limitations.

[0049] Preferably, the first protrusion 101 and the second protrusion 202 are circular structures, and the detection protrusion 404 is a long rectangular structure; the second groove 201 and the third groove 303 are circular grooves, and the detection groove 203 is a long rectangular groove.

[0050] Working principle details:

[0051] When inspecting the stacked slots of silicon steel sheets of the compressor variable frequency motor stator, the specific steps are as follows: First, ensure that the detection blade 4 of the detection device is clean and undamaged so that it can accurately match the stacked teeth of the variable frequency stator; align the stacked teeth of the variable frequency stator with the detection blade 4 of the detection device. In this process, special attention should be paid to ensure the precise match between the two to avoid misalignment or tilting; after confirming that the tooth slots are aligned correctly, start to slowly and steadily put the stacked product of the variable frequency stator into the inspection fixture under the guidance of the detection bar 405, the detection head 401, and the detection column 402. At this time, it is necessary to keep the operation stable and avoid rapid movement or sudden force; in the process of putting it down, pay close attention to the verticality of the stator stack. If it is found that the verticality is abnormal and it is difficult to put it in, the detection blade 4 will play a role in detection.

[0052] Continue the descending operation. When the tooth slots of the variable frequency stator stack to be tested descend to the detection blade, the detection bar and the detection protrusion can allow the inner wall of the variable frequency stator to be tested to pass through. The inner wall of the variable frequency stator stack slot is detected by the cooperation of the detection protrusion 404 and the detection bar 405 to detect whether it is qualified. If it is difficult to insert, the inner wall thickness is detected to be unqualified. If the variable frequency stator stack slot continues to descend to the position of the detection column 402, the verticality of the rotor will be checked again. At the same time, it can also be detected whether there is any silicon steel strip waste left after punching inside the slot. These wastes will affect the performance and quality of the product, so it is necessary to ensure that they are completely removed.

[0053] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A motor stator silicon steel sheet stacking slot detection device, characterized in that: It comprises a fixed top cover, a fixed body is arranged below the fixed top cover, the fixed body is arranged on a fixed base, a plurality of detection blades are arranged at the top edge of the fixed base, the plurality of detection blades form a circular ring belt, and the ring belt is located outside the fixed body.

2. A motor stator silicon steel sheet stacking slot detection device as claimed in claim 1, characterized in that: A first protrusion is formed at the axis center of the bottom of the fixed top cover.

3. The motor stator silicon steel sheet stacking slot detection device according to claim 1, characterized in that: A second groove is provided at the center of the axis at the top of the fixed body, and the second groove is matched with the first protrusion, and the two are tightly embedded.

4. A motor stator silicon steel sheet stacking slot detection device as claimed in claim 3, characterized in that: A second protrusion is formed at the axis center of the bottom of the fixing body.

5. The motor stator silicon steel sheet stacking slot detection device as claimed in claim 3, characterized in that: A plurality of vertical detection grooves are arranged on the outer wall of the fixed body.

6. A motor stator silicon steel sheet stacking slot detection device as claimed in claim 1, characterized in that: The fixed base comprises a first base column and a second base column, wherein the second base column is fixed on the first base column and is tightly connected.

7. A motor stator silicon steel sheet stacking slot detection device as claimed in claim 6, characterized in that: A third groove is provided at the center of the axis of the top of the second bottom column, and the third groove is matched with the second protrusion at the bottom of the fixed body, and the two are tightly embedded.

8. The motor stator silicon steel sheet stacking slot detection device according to claim 1, characterized in that: The detection blade comprises a detection column, a detection head and a detection strip. The top surface of the detection column is fixedly connected to the bottom surface of the detection head, and the detection strip is fixedly connected to a side surface of the detection column close to the fixed body.

9. A motor stator silicon steel sheet stacking slot detection device as claimed in claim 8, characterized in that: The detection strip is embedded in the detection groove on the fixed body.

10. The motor stator silicon steel sheet stacking slot detection device according to claim 8, characterized in that: A detection protrusion is arranged on a side of the detection head facing the fixed body.

Images