Stator block splicing auxiliary tooling

Abstract

The utility model belongs to the technical field of motor processing and manufacturing, and in particular, relates to a block stator splicing auxiliary tooling. A block stator splicing auxiliary tooling includes a base plate, on which a plurality of sliders are arranged in an annular manner with uniform intervals, and the sliders are equipped with a driving assembly for realizing radial movement of the sliders, and each of the sliders is provided with a positioning groove which opens upward and is used to limit the radial position of the block stator, and a spacer is detachably provided on the base plate, and the spacer is located at the center of all the sliders, and the spacer is provided with a plurality of spacer plates which are radially extending radially outward, and each of the spacer plates is located between two adjacent sliders, and between two adjacent spacer plates, it is used to limit the expansion of the insulating paper of the block stator in a clockwise direction or a counterclockwise direction. The utility model has the advantage of ensuring that the insulating paper is wrapped around the outside of the block stator.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor processing and manufacturing, and particularly relates to an auxiliary tooling for splicing a block stator. Background Art

[0002] The stator core of a motor is generally divided into integral type and block type. The integral stator core is made of one piece, while the block stator core is made of multiple block stators spliced ​​together.

[0003] Chinese patent application number 202322824273.5 discloses a stator core splicing ring tooling, which is provided with multiple mobile modules, each of which is provided with a block stator placement position. The multiple mobile modules move radially to achieve a full circle of the block stator, and finally the ring is set on all the block stators after the full circle.

[0004] Since each block stator needs to be separated by insulating paper, the insulating paper of the conventional block stator is in a flat state before the block stators are spliced ​​together. During splicing, the insulating paper needs to be folded so that the insulating paper is wrapped around the outside of the coil. In the above scheme, when the block stator is pre-placed on the tooling, it is difficult to ensure that the insulating paper of the block stator is completely wrapped around the outside of the coil after being folded, and the insulating paper will automatically unfold to both sides of the circumference in a natural state. If the block stator is assembled into a full circle when the insulating paper is not completely wrapped around the outside of the coil, the insulating paper may be squeezed and wrinkled and damaged, which may cause the stator to be punctured when the motor is used. If the above scheme is to avoid the unfolding of the insulating paper, it may be necessary to add a process for folding and shaping the insulating paper, but doing so will waste assembly time and have low assembly efficiency. Utility Model Content

[0005] The utility model aims to provide a block stator splicing auxiliary tool which can ensure that the insulating paper is wrapped on the outer side of the block stator.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of auxiliary tooling for splicing a block stator, comprising a base plate, on which a plurality of sliders are arranged in an annular shape and evenly spaced apart, the sliders are equipped with a driving assembly for realizing radial movement of the sliders, each of the sliders is provided with a positioning groove which opens upward and is used to limit the radial position of the block stator, a spacer is detachably provided on the base plate, the spacer is located at the center of all the sliders, the spacer is provided with a plurality of spacer plates which are radially extending radially outward, each of the spacer plates is located between two adjacent sliders, and the spacer plates between two adjacent sliders are used to limit the expansion of the insulating paper of the block stator in a clockwise direction or a counterclockwise direction.

[0007] During use, the operator adjusts the position of the spacer and places the spacer at the center of several sliders so that there is a spacer between two adjacent sliders. The operator then holds the insulating paper tightly with his hands so that the insulating paper is wrapped around the circumferential outside of the coil. At the same time, the segment stator is placed in the positioning groove. The spacers on both sides of the circumference will limit the unfolding of the insulating paper. The operator then sets the clamp on the circumferential outside of all the segment stators and tightens the clamp. The operator then removes the spacer and drives the assembly to move the slider radially so that all the segment stators are completed in a full circle. Finally, the clamp is tightened again and all the segment stators are removed from the base plate to complete the assembly process.

[0008] After the spacer is removed, the gap between two adjacent stator blocks is small because the clamp initially holds the stator blocks tightly, so the insulation papers between the two stator blocks will contact each other, thereby restricting the expansion of the insulation papers of each other. The clamp is a workpiece.

[0009] The driving component is any existing component that can realize synchronous radial movement of the slider.

[0010] This solution can limit the insulating paper of the block stator by using the spacer when the block stator is placed, so as to prevent the insulating paper from unfolding before the whole circle, thereby ensuring that the insulating paper is completely wrapped around the outside of the coil and avoiding wrinkles in the insulating paper during assembly. After adopting the tooling of this solution, there is no need to add a process of folding and shaping the insulating paper of the block stator, which optimizes the production and assembly process of the block stator. At the same time, the spacer can also limit the circumferential position of the block stator, making it more convenient for operators to place the block stator.

[0011] Preferably, a plug hole opening upward is provided at the center of the bottom plate, a pin inserted into the plug hole is provided at one end of the spacer, and a handle is provided at the other end of the spacer.

[0012] The cooperation between the latch and the insertion hole makes it easy to position the spacer, and the handle makes it easy for an operator to put in and take out the spacer.

[0013] Preferably, the driving assembly includes a turntable concentrically arranged with the base plate and a driving mechanism for driving the turntable to rotate, the turntable is provided with a plurality of arc grooves evenly spaced in an annular manner, the two ends of the arc groove are an inner end and an outer end respectively, the inner end is closer to the center of the turntable than the outer end, and the slider is provided with a mating pin extending into the arc groove; the driving assembly also includes a guide plate, the guide plate is located on the axial side of the turntable, the guide plate is provided with a plurality of radially extending sliding grooves, and the slider is slidably fitted in the sliding grooves.

[0014] When the driving mechanism drives the turntable to rotate, the rotation of the turntable will change the position of the arc groove, and the change in the position of the arc groove will change the radial position of the matching pin, which moves from the outer end to the inner end. The change in the radial position of the matching pin will cause the slider to move, and the slide groove can guide the movement of the slider, so that the slider moves radially inward; thereby achieving synchronous radial movement of all sliders. The driving mechanism can be a motor, a rotary cylinder, etc. The axial side is actually the upper side or the lower side.

[0015] Preferably, gear teeth are provided on the circumferential outer wall of the turntable, and the driving mechanism comprises a hand wheel and a transmission gear meshing with the gear teeth, and the hand wheel realizes the rotation of the transmission gear.

[0016] The operator rotates the handwheel to drive the turntable with the transmission gear. Compared with the conventional motor-driven turntable or cylinder-driven turntable, which easily causes the block stators to be too tight and unable to be removed, manual rotation can better control the force and facilitate the removal of the block stators after the whole circle.

[0017] Preferably, a step structure is provided on the slot wall of the positioning slot, and the step structure is used to support the axial end surface of the iron core of the segmented stator.

[0018] The block stator includes an iron core and a frame. The frame and the iron core directly form a step. The block stator is positioned by arranging a step structure on the slot wall of the positioning slot.

[0019] Preferably, the slider includes a slider body that is slidably matched with the slide groove and a positioning block provided with the positioning groove, and the positioning block is fixedly connected to the slider body; the positioning block includes a first positioning portion and a second positioning portion that are radially spaced apart, and the positioning groove is formed between the first positioning portion and the second positioning portion, the first positioning portion is located radially inside the second positioning portion, the radial outer side surface of the upper end of the first positioning portion is a slope, and the thickness of the upper end of the first positioning portion gradually decreases from bottom to top.

[0020] The thickness of the upper end of the first positioning portion gradually decreases from bottom to top, which can facilitate the placement of the stator block and has a guiding effect, and can also facilitate the removal of the stator block after rounding.

[0021] Preferably, a cylinder extending in the up-down direction is provided at the center of the bottom plate, and when the block stator completes a full circle, the radial inner wall of the slider contacts and cooperates with the circumferential outer wall of the cylinder.

[0022] The cylinder can limit the extreme position of the movement of the slider, thereby preventing the slider from moving too far radially inward, resulting in too close contact between the stators and the segments and making them unable to be removed.

[0023] The utility model has the advantages of ensuring that the insulating paper is wrapped around the outer side of the block stator, and no additional process of shaping the insulating paper of the block stator is required, thus having the advantages of high assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 This is a schematic diagram of the structure after removing the spacer and part of the slider.

[0026] Figure 3 for Figure 1 Schematic diagram of the structure after removing the guide plate.

[0027] Figure 4 Schematic diagram of the structure of the guide plate.

[0028] Figure 5 Schematic diagram of the structure of the bottom of the guide plate.

[0029] Figure 6 A schematic diagram of the structure of the slider.

[0030] Figure 7 This is a schematic diagram of the structure of a slider with a block stator.

[0031] Figure 8 It is a structural schematic diagram of the utility model when in use.

[0032] Figure numbers: 1, base plate; 11, cylinder; 2, guide plate; 21, slide groove; 22, fixing part; 3, spacer; 31, handle; 32, spacer plate; 4, hand wheel; 41, transmission gear; 5, positioning block; 51, positioning groove; 52, first positioning part; 53, second positioning part; 54, step structure; 6, turntable; 61, arc groove; 62, gear teeth; 7, slider body; 100, block stator; 200, clamp. DETAILED DESCRIPTION

[0033] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 3 As shown, this embodiment discloses a block stator splicing auxiliary tooling, including a bottom plate 1, a cylinder 11 extending upward (axially extending) is provided at the center of the bottom plate 1, the cylinder 11 is provided with an upwardly opening plug hole, the plug hole is matched with a plug-in spacer 3, the lower end of the spacer 3 is provided with a plug pin extending downward and used to be inserted into the plug hole, and the upper end of the spacer 3 is provided with an upwardly extending handle 31. A plurality of radially arranged spacer plates 32 are provided on the circumferential outer wall of the spacer 3, and each spacer plate 32 extends radially outward.

[0035] like Figures 2 to 5 As shown, a turntable 6 is rotatably connected to the base plate 1. The turntable 6 is concentrically arranged with the base plate 1. The turntable 6 is provided with a plurality of circular arc grooves 61 evenly spaced. The two ends of the arc groove 61 are respectively an inner end and an outer end. The inner end of the arc groove 61 is closer to the center of the turntable 6 than the outer end. Gear teeth 62 are provided on the circumferential outer wall of the turntable 6. The gear teeth 62 are meshed with the transmission gear 41. The transmission gear 41 is driven to rotate by the hand wheel 4. A plurality of sliders are supported on the upper end surface of the turntable 6. The sliders include a slider body 7 and a positioning block 5 located on the upper side of the slider body. The slider body 7 is fixedly connected to the positioning block 5. The slider body 7 is provided with a matching pin (not shown in the figure) extending into the arc groove 61. The circumferential outer wall of the matching pin contacts and slides with the groove wall of the arc groove 61. A guide plate 2 is provided on the axial upper side of the turntable 6, and a downwardly extending fixing portion 22 is provided at the circumferential outer edge of the guide plate 2. The fixing portion 22 is located on the circumferential outer side of the turntable 6 and is fixedly connected to the bottom plate 1. The fixing portion 22 is provided with a plurality of annular sliding grooves 21 evenly spaced apart. The sliding grooves 21 open downward and extend in the radial direction, and the slider body 7 is slidably fitted in the sliding grooves 21.

[0036] like Figure 6 and Figure 7 As shown, the cross-sectional shape of the circumferential outer edge of the positioning block 5 is fan-shaped. A positioning block 5 is provided between two adjacent spacer plates 32. The positioning block 5 is provided with a positioning groove 51 which is open upward and circumferentially penetrated. The positioning block 5 includes a first positioning portion 52 and a second positioning portion 53 extending upward. The first positioning portion 52 and the second positioning portion 53 are spaced apart in the radial direction. The first positioning portion 52 is located on the radial inner side of the second positioning portion 53. The first positioning portion 52 and the second positioning portion 53 are enclosed together to form the positioning groove 51. The radial inner side wall of the second positioning portion 53 is a side groove wall of the positioning groove 51. The radial inner side wall of the second positioning portion 53 is provided with a step structure 54 to support the axial end face of the iron core of the block stator 100. The radial outer side face of the upper end of the first positioning portion 52 is an inclined surface, and the thickness of the upper end of the first positioning portion 52 gradually decreases from bottom to top.

[0037] like Figures 1 to 8As shown, in actual use, the operator first plugs the pin of the spacer 3 into the plug-in hole, and adjusts the position of the spacer 3 during the plug-in so that there is a slider between the two adjacent spacer plates 32. Then the operator holds the insulating paper of the block stator 100 so that the insulating paper is wrapped around the outside of the coil of the block stator 100, and then places the block stator 100 in the positioning groove 51 of the positioning block 5. The two adjacent spacer plates 32 can limit the expansion of the insulating paper in the clockwise or counterclockwise direction. Repeat the above operation. When all the positioning grooves 51 are filled with the block stators 100, the operator sets the clamp 200 on the outside of the block stator 100, and screws the locking piece of the clamp 200 to make the clamp 200 initially hold the block stator 100, and then the operator pulls out the spacer 3; the insulating papers between two adjacent block stators 100 contact each other and limit their respective expansion, and then the operator turns the hand wheel 4 to make the slider body 7 move radially inward in the slide groove 21, so that the positioning block 5 moves radially inward, so that all the block stators 100 are completed in a circle, and then the operator screws the locking piece of the clamp 200 again to make the clamp 200 completely hold the block stator 100, and then the operator can take out the block stator 100.

Claims

1. A block stator splicing auxiliary tooling, comprising a workbench, on which a plurality of sliders are arranged evenly spaced in an annular manner, the sliders are equipped with a driving assembly for realizing radial movement of the sliders, each of the sliders is provided with a positioning groove which opens upward and is used to limit the radial position of the block stator, characterized in that: The workbench is detachably provided with a spacer, which is located at the center of all the sliders. The spacer is provided with a plurality of spacer plates which are radially extending radially outward, each of which is located between two adjacent sliders, and the spacer plates between two adjacent sliders are used to limit the expansion of the insulating paper of the block stator in the clockwise direction or the counterclockwise direction.

2. The block stator splicing auxiliary tooling according to claim 1 is characterized in that: A plugging hole which opens upward is arranged at the center of the workbench, a plugging pin which is inserted into the plugging hole is arranged at one end of the spacer, and a handle is arranged at the other end of the spacer.

3. The block stator splicing auxiliary tooling according to claim 2 is characterized in that: The driving assembly includes a turntable concentrically arranged with the workbench and a driving mechanism for driving the turntable to rotate, the turntable is provided with a plurality of arc grooves evenly spaced in an annular manner, the two ends of the arc groove are an inner end and an outer end respectively, the inner end is closer to the center of the turntable than the outer end, and the slider is provided with a matching pin extending into the arc groove; the driving assembly also includes a guide plate, the guide plate is located on the axial side of the turntable, the guide plate is provided with a plurality of radially extending sliding grooves, and the slider is slidably fitted in the sliding grooves.

4. The block stator splicing auxiliary tooling according to claim 3 is characterized in that: Gear teeth are arranged on the circumferential outer wall of the rotating disk, and the driving mechanism comprises a hand wheel and a transmission gear meshing with the gear teeth, and the hand wheel realizes the rotation of the transmission gear.

5. The block stator splicing auxiliary tooling according to claim 1 is characterized in that: A step structure is provided on the groove wall of the positioning groove, and the step structure is used to support the axial end surface of the iron core of the block stator.

6. The block stator splicing auxiliary tooling according to claim 5 is characterized in that: The slider includes a slider body that is slidably matched with the slide groove and a positioning block provided with the positioning groove, and the positioning block is fixedly connected to the slider body; the positioning block includes a first positioning portion and a second positioning portion that are radially spaced apart, and the positioning groove is formed between the first positioning portion and the second positioning portion, the first positioning portion is located radially inside the second positioning portion, the radial outer side surface of the upper end of the first positioning portion is a slope, and the thickness of the upper end of the first positioning portion gradually decreases from bottom to top.

7. The block stator splicing auxiliary tooling according to any one of claims 1 to 6, characterized in that: A cylinder extending in the up-down direction is provided at the center of the workbench. When the block stator completes a full circle, the radial inner wall of the slider contacts and cooperates with the circumferential outer wall of the cylinder.

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