An automatic stator core insulation paper insertion device

Abstract

This utility model relates to an automatic stator core insulation paper insertion device, comprising a base plate, a fixing device, and a lifting mechanism. A support frame is provided on the top of the base plate and is fixedly installed at the top rear end of the base plate. The fixing devices are fixedly installed at the top front end of the base plate and are spaced apart on one side of the support frame. A receiving groove is provided at the top of the fixing device for placing the stator core. The lifting mechanism is located at the top of the support frame and is used to ensure the insulation paper adheres tightly to the surface of the stator core. By adopting the above technical solution, one piece of insulation paper is placed in the receiving groove, then the stator core is placed in the receiving groove, and then another piece of insulation paper is placed on top of the stator core. The lifting device then secures the two pieces of insulation paper firmly to the top and bottom ends of the stator core, respectively, achieving automatic insertion of the stator core insulation paper.

Description

Technical Field

[0001] This utility model relates to the technical field of paper insertion devices for stator production, and in particular to an automatic stator core insulation paper insertion device. Background Technology

[0002] In the field of motor manufacturing, inserting insulating paper into the outside of the stator core is a key process to ensure reliable insulation between the windings and the core.

[0003] Currently, the main functions of wrapping insulating paper around the stator core are as follows: The stator core is made of laminated silicon steel sheets. Although the sheets are insulated, the core still has a certain degree of conductivity. Wrapping the insulating paper can effectively isolate the core from the windings, preventing the induced electromotive force generated by the windings when energized from forming eddy currents in the core, avoiding local overheating of the core, reducing losses, and improving motor efficiency. At the same time, it can prevent short circuit faults between the windings and the core due to leakage or voltage breakdown, ensuring the safe and stable operation of the motor. In addition, the insulating paper can also play a certain role in shock absorption and noise reduction, reducing vibration and noise during motor operation and extending the service life of the motor.

[0004] The above-mentioned existing technical solutions have the following drawbacks: it is difficult for the operator to accurately control the downward pressure and direction applied to the insulating paper. The first insulating paper needs to be inserted downwards into the gradually thickening iron core cone surface. If the force is uneven, it is very easy to cause the insulating paper to tear or wrinkle. Utility Model Content

[0005] The purpose of this invention is to provide an automatic stator core insulation paper insertion device to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An automatic stator core insulation paper insertion device includes:

[0008] A base plate, wherein a support frame is provided on the top of the base plate, and the support frame is fixedly installed at the top rear end of the bottom;

[0009] A fixing device is fixedly installed on the top front end of the base plate. The fixing devices are spaced apart on one side of the support frame. A receiving groove is provided at the top of the fixing device for placing the stator core.

[0010] A lifting mechanism is provided, which is located at the top of the support frame and is used to make the insulating paper adhere tightly to the surface of the stator core.

[0011] When adopting the above technical solution, it should be noted that the top diameter of the stator core gradually decreases from bottom to top. The inner diameter of the insulating paper is slightly larger than the top diameter of the stator core, and the inner diameter of the insulating paper is the same as the bottom diameter of the stator core. A first insulating paper is placed on the top of the stator core, and a second insulating paper is placed on the bottom. Both the first and second insulating papers have a certain degree of rigidity. Therefore, the second insulating paper is first placed in the receiving groove, then the stator core is placed in the receiving groove, and then the second insulating paper is placed on top of the stator core. Finally, the lifting device is used to move the first insulating paper... A uniform downward force is applied to the paper, causing the first insulating paper to move downwards and firmly fit onto the top of the stator core. During this process, the stator core also moves downwards. Because the inner diameter of the second insulating paper is the same as the bottom diameter of the stator core, there is friction between the second insulating paper and the stator core. Therefore, the second insulating paper will not completely fit onto the bottom of the stator core. So when an external force is applied to the stator core to move it downwards, the second insulating paper will be firmly fitted onto the bottom of the stator core. This achieves automatic insertion of the stator core insulating paper and avoids damage to the insulating paper caused by uneven force applied during manual installation.

[0012] In a further embodiment, the fixing device includes:

[0013] A cylinder is fixedly installed on the top front end of a base plate. The top of the cylinder is provided with a downward-facing first receiving groove, and the bottom center of the first receiving groove is provided with a downward-facing second receiving groove. Both the first and second receiving grooves are circular grooves. The diameter of the first receiving groove is larger than the diameter of the second receiving groove. A circular ring is fixedly installed at the bottom of the inside of the first receiving groove. The outer wall of the circular ring is fixedly connected to the inside of the first receiving groove. The size of the circular ring and the insulating paper are the same.

[0014] A truncated cone is provided, wherein a stator core is placed inside the cylinder, the top diameter of the truncated cone is smaller than the bottom diameter of the truncated cone, and an upward-facing first clearance groove is provided at the center of the bottom of the truncated cone. The truncated cone is movably fitted onto the top of the stator core.

[0015] In a further embodiment, the lifting mechanism includes:

[0016] A cylinder, the cylinder comprising a movable end and a fixed end, the fixed end being disposed on top of the movable end;

[0017] The sleeve is fixedly installed at the bottom of the movable end of the cylinder, and the bottom of the sleeve is provided with an upward-facing second clearance groove, which is used to avoid the frustum.

[0018] In a further embodiment, the support frame includes a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged in parallel, the second vertical plate is spaced apart and arranged to the right of the first vertical plate, and the same rectangular block is fixedly installed on the front top of the first vertical plate and the second vertical plate, and the top of the rectangular block is provided with a vertically penetrating mounting hole.

[0019] In a further embodiment, the bottom diameter of the frustum is smaller than the inner diameter of the insulating paper.

[0020] In a further embodiment, the surface of the frustum is provided with a smooth coating.

[0021] By adopting the above technical solution, firstly, the operator places the second insulating paper flat into the first receiving groove of the fixing device. The second insulating paper is precisely positioned and supported by the ring fixed at the bottom of the first receiving groove. Then, the stator core to be processed is placed vertically in the first receiving groove, so that the bottom end of the stator core is inserted into the second receiving groove, thereby achieving the primary positioning of the stator core. Next, the truncated cone is placed on the top of the stator core, and the first clearance groove at the bottom of the truncated cone can accommodate the stator core. The cylinder is activated, driving the moving end of the cylinder to move the bottom sleeve downward. The second clearance groove at the bottom of the sleeve first contacts and presses against the top of the truncated cone. Since the bottom diameter of the truncated cone is smaller than the inner diameter of the insulating paper, and the surface of the truncated cone has a smooth coating, the bottom of the sleeve... The first insulating paper is subjected to a downward force, causing it to completely cover the top of the stator core. Under the pressure of the sleeve, the truncated cone smoothly presses down on the stator core. The stator core is pushed by the truncated cone, overcoming the slight resistance of the ring, and moves downward, allowing the second insulating paper to be placed on the bottom of the stator core. This ensures that both the first and second insulating papers are fully unfolded, wrinkle-free, and firmly attached to the stator core structure, completing the automatic insertion of the first and second insulating papers. After the insertion is completed, the moving end of the cylinder drives the sleeve to rise and reset. Then, the operator removes the truncated cone and takes out the stator core with the first and second insulating papers inserted. The device is then ready to perform the next insertion of the first and second insulating papers into the stator core.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. By placing the second insulating paper in the receiving groove, then placing the stator core in the receiving groove, and then placing the second insulating paper on top of the stator core, a uniform downward force is applied to the first insulating paper through a lifting device, causing the first insulating paper to move downward and firmly fit onto the top of the stator core. During this process, the stator core also moves downward. Because the inner diameter of the second insulating paper is the same as the bottom diameter of the stator core, there is friction between the second insulating paper and the stator core. Therefore, the second insulating paper will not completely fit onto the bottom of the stator core. So when an external force is applied to the stator core to move it downward, the second insulating paper will be firmly fitted onto the bottom of the stator core, which can achieve the effect of the first and second insulating papers automatically fitting onto the stator core. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a structural schematic diagram of the fixing device of this utility model;

[0026] Figure 3 This is a structural schematic diagram of the lifting mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the first receiving groove of the cylinder of this utility model.

[0028] In the diagram, 1 is the base plate; 2 is the support frame; 21 is the first vertical plate; 22 is the second vertical plate; 23 is the rectangular block; 3 is the fixing device; 31 is the cylinder; 32 is the ring; 33 is the frustum; 4 is the stator core; 5 is the lifting mechanism; 51 is the cylinder; and 52 is the sleeve. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0031] Example 1:

[0032] like Figures 1-3 As shown, an automatic stator core insulation paper insertion device includes a base plate 1, a fixing device 3, and a lifting mechanism 5. A support frame 2 is provided on the top of the base plate 1 and is fixedly installed at the top rear end of the bottom. The support frame 2 includes a first vertical plate 21 and a second vertical plate 22, which are arranged in parallel. The second vertical plate 22 is spaced apart on the right side of the first vertical plate 21. The same rectangular block 23 is fixedly installed on the front top of the first vertical plate 21 and the second vertical plate 22. The top of the rectangular block 23 is provided with a vertically penetrating mounting hole. The fixing device 3 is fixedly installed on the top front end of the base plate 1 and is spaced apart on one side of the support frame 2. The top of the fixing device 3 is provided with a receiving groove for placing the stator core 4. The lifting mechanism 5 is installed in the mounting hole and is used to make the insulation paper adhere tightly to the surface of the stator core 4.

[0033] The fixing device 3 includes a cylinder 31 and a frustum 33. The cylinder 31 is fixedly installed on the top front end of the base plate 1. The top of the cylinder 31 is provided with a downward first receiving groove, and the bottom center of the first receiving groove is provided with a downward second receiving groove. Both the first and second receiving grooves are circular grooves. The diameter of the first receiving groove is larger than the diameter of the second receiving groove. A ring 32 is fixedly installed at the bottom of the first receiving groove. The outer wall of the ring 32 is fixedly connected to the inside of the first receiving groove. The ring 32 and the insulating paper are the same size. The stator core 4 is placed inside the cylinder 31. The top diameter of the frustum 33 is smaller than the bottom diameter of the frustum 33. An upward first clearance groove is opened at the bottom center of the frustum 33. The frustum 33 is movably fitted on the top of the stator core 4. The bottom diameter of the frustum 33 is smaller than the inner diameter of the insulating paper. The surface of the frustum 33 is provided with a smooth coating.

[0034] The lifting mechanism 5 includes a cylinder 51 and a sleeve 52. The cylinder 51 includes a movable end and a fixed end. The fixed end is located at the top of the movable end. The sleeve 52 is fixedly installed at the bottom of the movable end of the cylinder 51. The bottom of the sleeve 52 is provided with an upward second clearance groove, which is used to avoid the frustum 33.

[0035] Specific implementation process: First, the operator places the second insulating paper flat into the first receiving groove of the fixing device. The second insulating paper is precisely positioned and supported by the ring 32 fixed at the bottom of the first receiving groove. Then, the stator core 4 to be processed is placed vertically in the first receiving groove, so that the bottom end of the stator core 4 is inserted into the second receiving groove, thereby achieving the primary positioning of the stator core 4. Next, the frustum 33 is placed on the top of the stator core 4, and the first clearance groove at the bottom of the frustum 33 can accommodate the stator core 4. The cylinder 51 is started, driving the moving end of the cylinder 51 to drive the bottom sleeve 52 downward. The second clearance groove at the bottom of the sleeve 52 first contacts and presses against the top of the frustum 33. Since the bottom diameter of the frustum 33 is smaller than the inner diameter of the insulating paper, and the surface of the frustum 33 has a smooth coating, the bottom of the sleeve 52... The cylinder 51 applies a downward force to the first insulating paper, causing it to completely cover the top of the stator core 4. Under the pressure of the sleeve 52, the truncated cone 33 smoothly presses down on the stator core 4. The stator core 4 is pushed by the truncated cone 33, overcoming the slight resistance of the ring 32 and moving downward, so that the second insulating paper can be fitted onto the bottom of the stator core 4. This ensures that the first and second insulating papers are fully unfolded, wrinkle-free, and firmly attached to both ends of the stator core 4, completing the automatic insertion of the first and second insulating papers. After the insertion is completed, the movable end of the cylinder 51 drives the sleeve 52 to rise and reset. Then, the operator removes the truncated cone 33 and takes out the stator core 4 with the first and second insulating papers inserted. The device is then ready to perform the next insertion of the first and second insulating papers into the stator core 4.

[0036] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic insertion device of insulating paper of a stator core (4) characterized by, include: A base plate (1) is provided with a support frame (2) on its top, and the support frame (2) is fixedly installed at the top rear end of the base plate; Fixing device (3), the fixing device (3) is fixedly installed on the top front end of the base plate (1), the fixing device (3) is spaced apart on one side of the support frame (2), and the top of the fixing device (3) is provided with a receiving groove, the receiving groove is used to place the stator core (4). The lifting mechanism (5) is located at the top of the support frame (2) and is used to make the insulating paper adhere to the surface of the stator core (4).

2. The automatic insertion device for insulating paper of stator core (4) according to claim 1, characterized in that: The fixing device (3) includes: A cylinder (31) is fixedly installed at the top front end of the base plate (1). The top of the cylinder (31) is provided with a downward first receiving groove, and the bottom center of the first receiving groove is provided with a downward second receiving groove. Both the first receiving groove and the second receiving groove are circular grooves. The diameter of the first receiving groove is larger than the diameter of the second receiving groove. A ring (32) is fixedly installed at the bottom of the inside of the first receiving groove. The outer wall of the ring (32) is fixedly connected to the inside of the first receiving groove. The size of the ring (32) and the insulating paper are the same. The cylinder (31) contains a truncated cone (33), and a stator core (4) is placed inside the cylinder (31). The top diameter of the truncated cone (33) is smaller than the bottom diameter of the truncated cone (33). An upward-facing first clearance groove is provided at the center of the bottom of the truncated cone (33). The truncated cone (33) is movably fitted on the top of the stator core (4).

3. The automatic insertion device for insulating paper of stator core (4) according to claim 1, characterized in that: The lifting mechanism (5) includes: The cylinder (51) includes a movable end and a fixed end, the fixed end being disposed on top of the movable end; The sleeve (52) is fixedly installed at the bottom of the movable end of the cylinder (51). The bottom of the sleeve (52) is provided with an upward second clearance groove, which is used to avoid the frustum (33).

4. The automatic insertion device for insulating paper of stator core (4) according to claim 1, characterized in that: The support frame (2) includes a first vertical plate (21) and a second vertical plate (22). The first vertical plate (21) and the second vertical plate (22) are arranged in parallel. The second vertical plate (22) is spaced apart on the right side of the first vertical plate (21). The same rectangular block (23) is fixedly installed on the front top of the first vertical plate (21) and the second vertical plate (22). The top of the rectangular block (23) is provided with a vertically penetrating mounting hole.

5. The automatic insertion device for insulating paper of stator core (4) according to claim 2, characterized in that: The bottom diameter of the frustum (33) is smaller than the inner diameter of the insulating paper.

6. The automatic insertion device for insulating paper of stator core (4) according to claim 2, characterized in that: The surface of the frustum (33) is provided with a smooth coating.

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