Generator rotor coil tool with shrinkage and expansion function

Abstract

The utility model relates to a coil winding tool technical field especially, it relates to a generator rotor coil frock with shrinkage function. The utility model provides a generator rotor coil frock with shrinkage function, solves the technical problem that the coil winding frock coil winding is finished and is not easy to take down from frock in prior art. A generator rotor coil frock with shrinkage function, including frock seat, through setting frock seat and movable block, multiple movable blocks form support ware, multiple movable blocks reciprocate along the diameter direction of frock seat to adjust the diameter size of support ware, and the outer diameter of expanding core is adjusted by changing the relative position with movable seat. Support ware is used for supporting coil or cooperating other structure to support coil. After coil winding is finished, expanding core displaces along the axial direction of frock seat, movable block contracts along the radial direction under the inner diameter pressure of coil, namely the diameter of support ware reduces, at this moment, generator rotor coil is very easy to take down from frock.

Description

Technical Field

[0001] This utility model relates to the field of coil winding tools, and in particular to a generator rotor coil tooling with expansion and contraction function. Background Technology

[0002] Automotive generators typically consist of a stator and a rotor. The rotor usually includes components such as coils, and copper wires need to be wound around the rotor during the generator manufacturing process.

[0003] Because the surface of the automotive generator coil needs to be wound into an arc shape to prevent grounding during the pressing of the front and rear claw poles, the winding tension is relatively large. After winding, the coil shrinks, making it difficult to remove the coil from the tooling.

[0004] Therefore, in the existing technology, there is a technical problem that the coil winding fixture is not easy to remove from the fixture after the coil is wound. Summary of the Invention

[0005] This utility model provides a generator rotor coil fixture with expansion and contraction function, which solves the technical problem in the prior art that the coil winding fixture is not easy to remove from the fixture after the coil is wound.

[0006] Some implementation schemes for solving the above-mentioned technical problems include: A generator rotor coil fixture with expansion and contraction function includes a fixture base; Movable blocks are slidably connected to the tooling base along the diameter direction of the tooling base. There are at least two movable blocks, and the at least two movable blocks are evenly arranged on the tooling base along the circumference of the tooling base. And an expansion core, the expansion core reciprocating along the axial direction of the tooling base; All the movable blocks cooperate to form a support, and the diameter of the support is adjusted by changing the relative position of the expansion core and the movable blocks.

[0007] Preferably, the generator rotor coil fixture further includes a tail top, the expansion core is disposed on the tail top, and the tail top drives the expansion core to reciprocate along the axial direction of the fixture base.

[0008] Preferably, an elastic element is provided between the expansion core and the tooling base to push the expansion core to move away from the tooling base.

[0009] Preferably, the shape of the expanding core is a frustum with unequal diameters at both ends.

[0010] Preferably, the diameter of the end of the expansion core near the tooling base is smaller than the diameter of the end of the expansion core away from the tooling base.

[0011] Preferably, the support is cylindrical, and the outer diameter of the expansion core is smaller than the inner diameter of the support.

[0012] Preferably, there are four movable blocks, and there is a gap between two adjacent movable blocks.

[0013] Preferably, the tooling base is provided with a slide rail for guiding the movable block, and the movable block is provided with a slider that cooperates with the slide rail.

[0014] Preferably, the slider is disposed on the movable block via a connecting block, the width of the slider is greater than the width of the connecting block, and the slide rail includes a first part that cooperates with the slider and a second part that cooperates with the connecting block, the first part and the second part communicating with each other.

[0015] Preferably, the slider and the connecting block are an integral structure, and the connecting block and the movable block are an integral structure.

[0016] Compared with the prior art, the present invention has the following advantages: By setting up a tooling base and movable blocks, multiple movable blocks form a support. These blocks reciprocate along the diameter of the tooling base to adjust the diameter of the support. The expansion core adjusts the outer diameter of the support by changing its relative position to the tooling base. The support is used to support the coil or, in conjunction with other structures, to support the coil. After the coil is wound, the expansion core moves along the axial direction of the tooling base, and the movable blocks contract radially under the pressure of the coil's inner diameter, thus reducing the diameter of the support. At this point, the generator rotor coil can be easily removed from the tooling, improving production efficiency, product qualification rate, reducing labor intensity, and facilitating operator loading and unloading. Attached Figure Description

[0017] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0018] Figure 1 This is a schematic diagram of the present invention.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a schematic diagram of the movable block and the tooling base after assembly.

[0021] Figure 4 This is a schematic diagram of the tooling base.

[0022] Figure 5 This is a schematic diagram of the active block.

[0023] As shown in the figure: 1. Tooling base; 11. Slide rail; 111. First part; 112. Second part.

[0024] 2. Movable block, 21. Slider, 22. Connecting block.

[0025] 3. Core expansion.

[0026] 4. Tail top.

[0027] 5. Elastic components.

[0028] 100. Tooling spindle.

[0029] 200. Skeleton. Detailed Implementation

[0030] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0031] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0032] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Reference Figures 1 to 5 As shown, a generator rotor coil tooling with expansion and contraction function includes a tooling base 1; Movable block 2, the movable block 2 is slidably connected to the tooling base 1 along the diameter direction of the tooling base 1, and there are at least two movable blocks 2, which are evenly arranged on the tooling base 1 along the circumference of the tooling base 1. And the expansion core 3, which reciprocates along the axial direction of the tooling base 1; All the movable blocks 2 cooperate to form a support, and the expansion core 3 adjusts the diameter of the support by changing the relative position of the expansion core 3 and the movable blocks 2.

[0034] Understandably, when movable block 2 moves away from the center of fixture 1, the diameter of the support increases. When movable block 2 moves closer to the center of fixture 1, the diameter of the support decreases. This achieves the adjustment of the support diameter.

[0035] Understandably, the expansion core 3 is used to displace the movable block 2 away from the center of the tooling seat 1. Typically, the expansion core 3 can push the movable block 2 to move from inside the support to increase the diameter of the support.

[0036] Although the increased diameter of the support creates a gap between adjacent movable blocks 2, this gap does not affect the winding of the coil, even though the support is used to support the coil or in conjunction with other structures to support the coil. For example, the coil bobbin can be fitted onto the support.

[0037] In some embodiments, the generator rotor coil fixture further includes a tail top 4, the expansion core 3 is disposed on the tail top 4, and the tail top 4 drives the expansion core 3 to reciprocate along the axial direction of the fixture base 1.

[0038] The tooling base is rotatably connected to the frame of the winding machine. The tail tip 4 is slidably connected to the frame of the winding machine. Typically, the tail tip 4 and the tooling base are coaxially arranged.

[0039] The tail cap 4 can be manually moved. For example, the frame can be equipped with guide rails, and the tail cap 4 can have a groove that mates with the guide rails. A locking mechanism can be installed between the tail cap 4 and the frame to lock the position of the tail cap 4 relative to the frame. For example, screws can be used to lock the position of the tail cap 4 relative to the frame. Typically, screws can use friction to lock the tail cap 4 to the frame.

[0040] The frame can also be equipped with a drive mechanism to drive the tailstock 4 to move, such as a hydraulic cylinder, pneumatic cylinder, linear motor, or other equipment that outputs linear motion to directly drive the tailstock 4. Alternatively, components such as a lead screw and nut can be used to drive the tailstock 4 to move linearly.

[0041] Reference Figure 2 As shown, in some embodiments, an elastic element 5 is provided between the expansion core 3 and the tooling base 1 to push the expansion core 3 to move away from the tooling base 1.

[0042] In some embodiments, the elastic element 5 can be a spring. One end of the spring contacts the tooling seat 1, and the other end of the spring can be fixed to the expansion core 3.

[0043] In some embodiments, the expansion core 3 can be directly fixed to the drive mechanism that drives the tail tip 4 to move, and the drive mechanism directly drives the tail tip 4 to reciprocate.

[0044] Reference Figure 2 As shown, in some embodiments, the shape of the expansion core 3 is a frustum with unequal diameters at both ends.

[0045] In some embodiments, the diameter of the end of the expansion core 3 near the tooling base 1 is smaller than the diameter of the end of the expansion core 3 away from the tooling base 1.

[0046] Understandably, the function of the expansion core 3 can be achieved whether the diameter of the end of the expansion core 3 near the tooling seat 1 is larger or smaller. That is, when the diameter of the end of the expansion core 3 near the tooling seat 1 is smaller, the diameter of the support increases through the movable block 2 when the expansion core 3 moves towards the tooling seat 1.

[0047] When the diameter of the expansion core 3 is larger at the end closer to the tooling seat 1, the expansion core 3 moves away from the tooling seat 1 and the diameter of the support increases through the movable block 2.

[0048] In some embodiments, the support is cylindrical, and the outer diameter of the expansion core 3 is smaller than the inner diameter of the support.

[0049] In some embodiments, there are four active blocks 2, with a gap between adjacent active blocks 2.

[0050] The number of activity blocks 2 is not limited and can be determined reasonably according to needs.

[0051] Reference Figures 3 to 5 As shown, in some embodiments, the tooling base is provided with a slide rail 11 for guiding the movable block 2, and the movable block 2 is provided with a slider 21 that cooperates with the slide rail 11.

[0052] In some embodiments, the slider 21 is disposed on the movable block 2 via a connecting block 22, the width of the slider 21 is greater than the width of the connecting block 22, and the slide 11 includes a first part 111 that cooperates with the slider 21 and a second part 112 that cooperates with the connecting block 22, wherein the first part 111 and the second part 112 communicate with each other.

[0053] In some embodiments, the slider 21 and the connecting block 22 are an integral structure, and the connecting block 22 and the movable block 2 are an integral structure.

[0054] In some embodiments, the cross-sectional shape of the slider 21 can be trapezoidal. The cross-sectional shape of the slider 21 directly prevents the slider 21 from moving along the axial direction of the tooling seat 1. When the slider 21 adopts this scheme, the connecting block 22 can be omitted.

[0055] In a specific application example, the tooling base 1 can be rotatably mounted on the frame via the tooling spindle 100, which is driven by a power source. Typically, the tooling spindle is also equipped with other accessories, which may include mechanisms for positioning copper wires, such as a cylinder that releases the wire block to allow the wire to enter, and the cylinder retracts the pressure block to press the wire end and guides it through the wire guide 200 into the wire slot.

[0056] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0057] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0058] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.

Claims

1. A generator rotor coil tooling with expansion and contraction function, characterized in that: Including tooling base (1); Movable block (2), the movable block (2) is slidably connected to the tooling seat (1) along the diameter direction of the tooling seat (1), there are at least two movable blocks (2), and at least two movable blocks (2) are evenly arranged on the tooling seat (1) along the circumference of the tooling seat (1). And the expansion core (3), the expansion core (3) reciprocates along the axial direction of the tooling base (1); All the movable blocks (2) cooperate to form a support, and the expansion core (3) adjusts the diameter of the support by changing the relative position of the expansion core (3) and the movable blocks (2).

2. The generator rotor coil tooling with expansion and contraction function according to claim 1, characterized in that: The generator rotor coil fixture also includes a tail top (4), the expansion core (3) is disposed on the tail top (4), and the tail top (4) drives the expansion core (3) to reciprocate along the axial direction of the fixture seat (1).

3. The generator rotor coil tooling with expansion and contraction function according to claim 1, characterized in that: An elastic element (5) is provided between the expansion core (3) and the tooling base (1) to push the expansion core (3) to move the expansion core (3) away from the tooling base (1).

4. The generator rotor coil tooling with expansion and contraction function according to claim 1, characterized in that: The shape of the expansion core (3) is a frustum with unequal diameters at both ends.

5. The generator rotor coil tooling with expansion and contraction function according to claim 4, characterized in that: The diameter of the end of the expansion core (3) near the tooling base (1) is smaller than the diameter of the end of the expansion core (3) away from the tooling base (1).

6. The generator rotor coil tooling with expansion and contraction function according to claim 1, characterized in that: The support is cylindrical, and the outer diameter of the expansion core (3) is smaller than the inner diameter of the support.

7. The generator rotor coil tooling with expansion and contraction function according to any one of claims 1 to 6, characterized in that: There are four active blocks (2), and there is a gap between two adjacent active blocks (2).

8. The generator rotor coil tooling with expansion and contraction function according to claim 1, characterized in that: The tooling base is provided with a slide (11) for guiding the movable block (2), and the movable block (2) is provided with a slider (21) that cooperates with the slide (11).

9. The generator rotor coil tooling with expansion and contraction function according to claim 8, characterized in that: The slider (21) is set on the movable block (2) via the connecting block (22). The width of the slider (21) is greater than the width of the connecting block (22). The slide (11) includes a first part (111) that cooperates with the slider (21) and a second part (112) that cooperates with the connecting block (22). The first part (111) and the second part (112) are connected.

10. The generator rotor coil tooling with expansion and contraction function according to claim 9, characterized in that: The slider (21) and the connecting block (22) are an integral structure, and the connecting block (22) and the movable block (2) are an integral structure.

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