A stator core loose piece feeding device

Abstract

The present invention relates to a stator core fragment loading device, comprising a front toothed disc, a rear toothed disc, and a loading seat, wherein the front toothed disc is fixed on the loading seat, and the rear toothed disc is slidably mounted on the loading seat; a driving device is mounted on the loading seat and connected to the rear toothed disc, for driving the rear toothed disc to move back and forth; left and right supporting devices are symmetrically mounted on the front toothed disc and the rear toothed disc, for supporting the fragmented stator from both sides of the fragmented stator; and a bottom supporting device is mounted on the front toothed disc and the rear toothed disc, for supporting the fragmented stator from the bottom of the fragmented stator. The stator core fragment loading device facilitates loading of the fragmented stator by arranging the rear toothed disc to be reciprocating, and then drives the rear toothed disc to press the fragmented stator against the front toothed disc through the driving device, and prevents the stator from tilting left and right and front and back during the clamping process through the left and right supporting devices and the bottom supporting device, thereby ensuring that the stator enters the skew station intact.

Description

Technical Field

[0001] The invention relates to a stator assembly device, in particular to a stator core scattered sheet feeding device. Background Art

[0002] The cogging torque in motors can cause large torque pulsations, which can seriously affect the control accuracy of the system and cause problems such as vibration and noise. Stator skew is an effective and widely used method to solve torque problems in motors, especially permanent magnet motors.

[0003] After the stator punching sheets are stacked, the slot insulation paper is inserted and the coil is embedded without final fixation. The stator is axially skewed by one slot pitch using a skew machine, and then the stator core is welded and fixed to achieve the purpose of stator slot skew.

[0004] This process requires that all the laminations be coaxial and perpendicular to the core axis during loading. This ensures smooth insertion of the slot insulation paper and coils, and that the core, with both slot insulation and coils intact, enters the skew station. Without clips or other means to secure the stator core, ensuring proper wire insertion is challenging and can easily damage the magnet wire. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a stator core feeding device that can effectively prevent the stator from tilting, ensure the coaxiality of the stator core, and is not prone to wire damage. The specific technical solution is as follows:

[0006] A device for loading scattered pieces of a stator core, comprising a front toothed disc and a rear toothed disc, and further comprising: a loading seat, the front toothed disc being fixed on the loading seat, and the rear toothed disc being slidably mounted on the loading seat; a driving device, the driving device being mounted on the loading seat and connected to the rear toothed disc, for driving the rear toothed disc to move back and forth; left and right supporting devices, the left and right supporting devices being symmetrically mounted on the front toothed disc and the rear toothed disc, for supporting the scattered piece stator from both sides of the scattered piece stator; and a bottom supporting device, the bottom supporting device being mounted on the front toothed disc and the rear toothed disc, for supporting the scattered piece stator from the bottom of the scattered piece stator.

[0007] Preferably, the driving device includes: a ball screw, which is rotatably mounted on the loading seat; a screw nut, which is mounted on the ball screw and connected to the rear toothed plate; and a motor, which is connected to the ball screw.

[0008] Wherein, the rear tooth guard plate is slidably mounted on the loading seat through a linear guide pair.

[0009] Preferably, the left and right supporting devices include: a supporting sleeve, which is fixed on the front tooth guard plate; and a supporting shaft, which is fixed on the rear tooth guard plate and movably inserted into the supporting sleeve.

[0010] Furthermore, the support sleeve is provided with an open slot, and the open slot and the support shaft enable the scattered pieces of the scattered piece stator to be at the same height.

[0011] Preferably, the bottom support device includes: a front support block, which is fixed on the front tooth guard plate; and a rear support block, which is fixed on the rear tooth guard plate and is arranged opposite to the front support block, and the front support block and the rear support block are used to support the stator.

[0012] Wherein, the front supporting block is provided with a front arc surface, and the rear supporting block is provided with a rear arc surface. The front arc surface and the rear arc surface are coaxially arranged and matched with the scattered stator.

[0013] Furthermore, it also includes an intermediate support block, which is fixed on the rear support block and can be movably inserted into the slot of the front support block. The intermediate support block is provided with an intermediate arc surface, which is coaxially arranged with the rear arc surface.

[0014] Furthermore, it also includes a support column, both ends of which are connected to the loading seat and the front support block respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a stator core loose piece loading device, which facilitates the loading of loose piece stators by arranging the rear toothed plate to be able to move back and forth, and then drives the rear toothed plate to press the loose piece stators onto the front toothed plate through a driving device, and prevents the stator from tilting left and right and front and back during the clamping process through the left and right support devices and the bottom support device, thereby ensuring that the stator enters the twisting station intact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the first viewing angle of the present invention;

[0018] Figure 2 is a perspective view of a second viewing angle of the present invention;

[0019] Figure 3 yes Figure 2 A partial enlarged view of point I in the middle;

[0020] Figure 4 It is a front view of the present invention;

[0021] Figure 5is a top view of the present invention;

[0022] Figure 6 It is a schematic diagram of the left and right support devices supporting the scattered stator. DETAILED DESCRIPTION

[0023] The present invention will now be further described with reference to the accompanying drawings.

[0024] like Figures 1 to 6 The device for loading scattered pieces of a stator core shown includes a front toothed plate 2, a rear toothed plate 3, a loading seat 1, a driving device, left and right supporting devices, and a bottom supporting device.

[0025] The front tooth guard plate 2 is fixed to one end of the loading seat 1, and the loading seat 1 is also equipped with a linear guide rail 41. The linear guide rail 41 is symmetrically provided with two and is located on one side of the front tooth guard plate 2. The rear tooth guard plate 3 is slidably mounted on the linear guide rail 41 through a slider 42.

[0026] The drive device includes a ball screw 43, a screw nut 44, and a motor. The motor is not shown in the figure and is connected to the ball screw 43. The ball screw 43 is rotatably mounted on the loading base 1 via a bearing seat 45. The screw nut 44 is connected to the ball screw 43 and the rear tooth guard plate 3 respectively. Among them, one end of the ball screw 43 is movably inserted into the front tooth guard plate 2, and the motor is located on one side of the front tooth guard plate 2. The ball screw 43 is also located below the front tooth guard plate 2 and the rear tooth guard plate 3. The motor drives the rear tooth guard plate 3 to move back and forth through the ball screw 43 and screw nut 44, adjusting the distance between the rear tooth guard plate 3 and the front tooth guard plate 2.

[0027] The left and right support devices include a support sleeve 51 and a support shaft 52. The end of the support sleeve 51 is fixed to the front toothbrush 2; one end of the support shaft 52 is fixed to the rear toothbrush 3, and the other end is movably inserted into the support sleeve 51. The support sleeve 51 cooperates with the support shaft 52 to ensure that the scattered stator is always supported when the rear toothbrush 3 moves. Since a stepped shaft is formed between the support sleeve 51 and the support shaft 52, in order to reduce the influence of the stepped structure on the loose stator, an open slot 511 is provided on the support sleeve 51. The open slot 511 is arranged opposite to the loose stator, and the top surface 512 of the open slot 511 is in contact with the loose stator. The stator height formed when the top surface 512 supports the loose stator is consistent with the stator height formed when the support shaft 52 supports the stator, so that the loose stator can slide smoothly from the support shaft 52 to the support sleeve 51, thereby eliminating the influence of the stepped shaft, avoiding deformation of the loose stator due to the stepped shaft, and avoiding part of the loose stators being stuck between the support sleeve 51 and the rear toothed disc 3 when the rear toothed disc 3 presses the loose stator.

[0028] The bottom support device includes a front support block 61, a rear support block 62 and an intermediate support block 63. One end of the front support block 61 is fixed to the front tooth guard plate 2, and the front support block 61 is provided with a front arc surface. One end of the rear support block 62 is fixed to the rear tooth guard plate 3, and the rear support block 62 is arranged opposite to the front support block 61, and the rear support block 62 is provided with a rear arc surface. A fixing groove is provided in the center of the rear support block 62, and the intermediate support block 63 is fixed in the fixing groove. The intermediate support block 63 is provided with an intermediate arc surface, and the intermediate arc surface, the rear arc surface and the front arc surface are coaxially arranged. A slot 611 is provided on the front support block 61, and the intermediate support block 63 is also movably inserted in the slot 611. The front arc surface, the intermediate arc surface and the rear arc surface all match the outer cylindrical surface of the scattered stator and are used to support the scattered stator. The intermediate support block 63 is used to integrate the front support block 61 and the rear support block 62. When the rear support block 62 moves, it fills the gap between the rear support block 62 and the front support block 61, preventing loose pieces from entering the gap between the two. Due to the long length of the front support block 61, a support column 64 is installed at the other end of the front support block 61 to improve stability. The support column 64 is fixed to the loading base 1.

[0029] Taking advantage of the characteristics of the loose stator, first move the rear tooth guard plate 3 backward 50mm, and the front tooth guard plate 2 does not move. After the rear tooth guard plate 3 retreats 50mm, open the tooth guards on the front tooth guard plate 2 and the rear tooth guard plate 3. At this time, the tooth guards are in a retracted state. At this time, the loose stator can be placed on the front support block 61, the rear support block 62 and the middle support block 63 through a tool, and located between the two support sleeves 51 and the support shaft 52. Then the motor drives the rear tooth guard plate 3 to move forward through the ball screw 43, and the rear tooth guard plate 3 pushes the loose stator to move toward the front tooth guard plate 2. When the rear tooth guard plate 3 moves to the set position, the tooth guard is extended to complete the fixation of the loose stator. During the forward movement of the rear tooth guard plate 3, the middle support block 63 and the rear support block 62 simultaneously move toward the front tooth guard plate 2 to continuously support the loose stator. The support sleeve 51 and the support shaft 52 simultaneously drag the loose stator from both sides, and the loose stator will not tilt left or right. Under the action of the front tooth guard plate 2 and the rear tooth guard plate 3, the loose stator will not tilt forward or backward, ensuring that the loose stator enters the twisting station intact.

[0030] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A stator core bulk feeding device, comprising a front toothed plate (2) and a rear toothed plate (3), characterized in that: Also includes: A loading seat (1), the front tooth guard plate (2) is fixed on the loading seat (1), and the rear tooth guard plate (3) is slidably mounted on the loading seat (1); A driving device, the driving device being mounted on the loading seat (1) and connected to the rear tooth guard plate (3) for driving the rear tooth guard plate (3) to move back and forth; Left and right supporting devices, the left and right supporting devices are symmetrically mounted on the front tooth guard plate (2) and the rear tooth guard plate (3), and are used to support the scattered stator from both sides of the scattered stator; and A bottom support device, the bottom support device being mounted on the front tooth guard plate (2) and the rear tooth guard plate (3) and being used for supporting the scattered-piece stator from the bottom of the scattered-piece stator; The left and right supporting devices include: A support sleeve (51), wherein the support sleeve (51) is fixed on the front tooth guard plate (2); and A support shaft (52), the support shaft (52) being fixed on the rear tooth guard plate (3) and being movably inserted into the support sleeve (51); The support sleeve (51) is provided with an open slot (511), and the open slot (511) and the support shaft (52) enable the scattered pieces of the scattered piece stator to be at the same height; First, the rear tooth guard plate (3) is moved backward, and the front tooth guard plate (2) is stationary. After the rear tooth guard plate (3) moves backward, the tooth guards on the front tooth guard plate (2) and the rear tooth guard plate (3) are opened. At this time, the tooth guards are in a retracted state. At this time, the scattered stator can be placed on the bottom support device through a tool and located between the two support sleeves (51) and the support shaft (52). The driving device drives the rear tooth guard plate (3) to move forward, and the rear tooth guard plate (3) pushes the scattered stator to move toward the front tooth guard plate (2), pressing the scattered stator onto the front tooth guard plate (2). When the rear tooth guard plate (3) moves to the set position, the tooth guard is extended to complete the fixing of the scattered stator.

2. A stator core bulk feeding device according to claim 1, characterized in that: The driving device comprises: A ball screw (43), the ball screw (43) being rotatably mounted on the loading seat (1); A screw nut (44), the screw nut (44) being mounted on the ball screw (43) and connected to the rear toothed plate (3); and A motor is connected to the ball screw (43).

3. A stator core bulk feeding device according to claim 2, characterized in that: The rear tooth guard plate (3) is slidably mounted on the loading seat (1) via a linear guide pair.

4. A stator core loose sheet feeding device according to any one of claims 1 to 3, characterized in that: The bottom supporting device comprises: A front support block (61), the front support block (61) being fixed on the front tooth guard plate (2); and A rear support block (62) is fixed on the rear tooth guard plate (3) and is arranged opposite to the front support block (61). The front support block (61) and the rear support block (62) are used to support the stator.

5. The stator core bulk feeding device according to claim 4, characterized in that: The front support block (61) is provided with a front arc surface, and the rear support block (62) is provided with a rear arc surface. The front arc surface and the rear arc surface are coaxially arranged and matched with the scattered stator.

6. The stator core bulk feeding device according to claim 5, characterized in that: The invention also includes an intermediate support block (63), wherein the intermediate support block (63) is fixed on the rear support block (62), and the intermediate support block (63) is also movably inserted into the slot (611) of the front support block (61). The intermediate support block (63) is provided with an intermediate arc surface, and the intermediate arc surface is coaxially arranged with the rear arc surface.

7. The stator core bulk feeding device according to claim 4, characterized in that: It also includes a support column (64), with two ends of the support column (64) respectively connected to the loading seat (1) and the front support block (61).

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