A fixture for stator slot milling

Abstract

This utility model discloses a fixture for milling grooves in a stator, including a first clamping block and a second clamping block. The first clamping block and the second clamping block are arranged opposite to each other. The structure of the second clamping block is the same as that of the first clamping block. The first clamping block includes a mounting base and a limiting plate. The mounting base is horizontally arranged, and the limiting plate is vertically arranged on the mounting base. A support block is vertically arranged on one side of the mounting base, and an arc-shaped groove is provided at the top of the support block. When the stator needs to be milled, the two ends of the stator are placed on the arc-shaped grooves on both sides. Then, the two end faces of the stator are pressed together by the limiting plates of the first and second clamping blocks, thereby fixing the stator. The overall structure is simple, and the operation is convenient when fixing the stator, which greatly improves the fixing efficiency of the stator and reduces the cost of the entire fixture. At the same time, the first and second clamping blocks fix the outside of the stator, avoiding wear on the grooves inside the stator and helping to ensure the machining quality of the stator.

Description

Technical Field

[0001] This utility model relates to a tooling for stator lamination processing, and more particularly to a fixture for stator milling. Background Technology

[0002] During the production of the motor stator, stator laminations are first stamped and formed piece by piece. After forming, the stator laminations are stacked on a die core. After stacking to a certain height and quantity, they are welded on a corresponding welding machine. During welding, the entire stack of stator laminations is pressed together before welding to form the motor stator. After the stator is welded, the outer circumference of the stator needs to be milled with grooves to meet the subsequent usage requirements of the stator. Since the stator is a cylindrical structure, it is difficult to fix it when milling grooves on the outer circumference. In the existing stator outer circumference machining, most of them use a jig inserted into the through hole in the middle of the stator. For example, application number 202333385592.3 discloses a jig for machining the outer circle of the stator core, which fixes the stator through an inner cylinder, a fixing block, a top clamping mechanism, and an adjusting sleeve to achieve the machining of the stator outer circle. However, this type of clamp that extends into the stator requires a relatively complex structure to prevent the stator from rotating during processing, and the operation of the clamp and the stator is relatively cumbersome, resulting in high production and processing costs. Utility Model Content

[0003] The purpose of this utility model is to provide a fixture for stator milling that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, a fixture for milling grooves in a stator is provided, including a first clamping block and a second clamping block. The first clamping block and the second clamping block are arranged opposite to each other. The structure of the second clamping block is the same as that of the first clamping block. The first clamping block includes a mounting base and a limiting plate. The mounting base is arranged horizontally, and the limiting plate is arranged vertically on the mounting base. A support block is vertically provided on one side of the mounting base, and an arc-shaped groove is provided at the top of the support block.

[0005] The beneficial effects of this utility model are as follows: By providing a support block with an arc-shaped groove, when the stator needs to be milled, both ends of the stator are placed on the arc-shaped grooves on both sides; then, the limiting plates of the first and second clamping blocks press the two end faces of the stator together, thereby fixing the stator. The overall structure is simple, and the operation is convenient when fixing the stator, which greatly improves the fixing efficiency of the stator and reduces the cost of the entire fixture. At the same time, the first and second clamping blocks fix the outside of the stator, avoiding wear on the grooves inside the stator and helping to ensure the processing quality of the stator.

[0006] In some embodiments, one side of the limiting plate is tightly fixed to one side of the support block, the top of the limiting plate is higher than the top of the support block, the limiting plate and the support block are connected by bolts, and the bottom end of the limiting plate abuts against the top of the mounting base. This facilitates the limiting plate in limiting and clamping the end face of the stator placed on the support block; the bolted connection between the limiting plate and the support block also facilitates the installation and removal of the limiting plate.

[0007] In some implementations, the support block and the mounting base are integrally formed. This ensures the stability of the connection between the support block and the mounting base.

[0008] In some embodiments, a fixture for stator milling further includes a first guide rod. A first through hole is provided on the mounting base, one end of the first guide rod is fixed inside the first through hole, and the other end extends downward through the mounting base. Thus, by providing the first guide rod, it is convenient for the first guide rod to engage with the corresponding position on the milling equipment, facilitating rapid positioning and installation of the entire fixture.

[0009] In some embodiments, a fixture for stator milling further includes a second guide rod. A second through hole is provided at the bottom of the arc-shaped groove. One end of the second guide rod is fixed inside the second through hole, and the other end extends downward through a support block. Thus, by providing the second guide rod, it is convenient for the second guide rod to engage with the corresponding position on the milling equipment, facilitating rapid positioning and installation of the entire fixture. Simultaneously, the guiding action of the first and second guide rods facilitates smooth adjustment of the positions of the first and second clamping blocks, ensuring convenient alignment and meeting different processing requirements.

[0010] In some embodiments, the top of the limiting plate is provided with a positioning groove. This positioning groove allows for easy alignment of the highest point of the stator, facilitating positioning of the highest point during milling and improving machining efficiency.

[0011] In some embodiments, the limiting plate is provided with multiple third through holes, which are located on the same straight line and distributed along the height direction of the limiting plate. This facilitates the passage of reinforcing rods between the corresponding third through holes on the first and second clamping blocks, improving the stability of the stator fixation.

[0012] In some embodiments, the mounting base is provided with multiple fixing holes. Therefore, by providing fixing holes, the entire fixture can be easily fixed to the milling machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the first or second clamping block in a stator milling fixture of this utility model.

[0014] Figure 2 This is a schematic diagram of the mounting base in a fixture for stator milling according to this utility model.

[0015] Figure 3 yes Figure 2 A schematic diagram of the main structure.

[0016] Figure 4 This is a schematic diagram of the stator's main structure. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Reference Figures 1-3 A fixture for milling stator grooves includes a first clamping block 1 and a second clamping block 2. The first clamping block 1 and the second clamping block 2 are arranged opposite to each other. The structure of the second clamping block 2 is the same as that of the first clamping block 1. The first clamping block 1 includes a mounting base 11 and a limiting plate 12. The mounting base 11 is arranged horizontally, and the limiting plate 12 is arranged vertically on the mounting base 11. A support block 13 is vertically provided on one side of the mounting base 11, and an arc-shaped groove 131 is provided at the top of the support block 13.

[0019] In use, the stator milling fixture of this utility model first places the first clamping block 1 and the second clamping block 2 on the milling machine, and fixes the mounting base 11 of the first clamping block 1 on the milling machine; then, the second clamping block 2 is moved so that the first clamping block 1 and the second clamping block 2 are adjusted to a suitable distance, and then the stator is placed on the arc-shaped groove 131 on the first clamping block 1 and the second clamping block 2. The arc-shaped grooves 131 on both sides can support the stator. The shape of the arc-shaped groove 131 is similar to that of the stator (e.g., ...). Figure 4 The outer periphery shape is matched to facilitate the support of the stator by the arc groove 131.

[0020] After the stator is placed on the arc-shaped grooves 131 on both sides, one end face of the stator is brought into contact with the limiting plate 12 of the first clamping block 1. Then, the second clamping block 2 is moved so that the limiting plate 12 in the second clamping block 2 is brought into contact with the other end face of the stator. Then, the mounting base 11 of the second clamping block 2 is fixed on the milling machine, thus achieving the fixation of the stator by the fixture. Therefore, the entire stator fixing process is quick, convenient, and simple to operate. At the same time, the first clamping block 1 and the second clamping block 2 clamp and fix the two end faces of the stator through the limiting plate 12, thereby avoiding wear on the inner wall and other parts of the stator, protecting the stator, and ensuring the quality of the stator.

[0021] After the stator is clamped and fixed by the first clamping block 1 and the second clamping block 2, the milling cutter on the milling machine can mill grooves on the outer wall of the stator to meet the processing requirements.

[0022] One side of the limiting plate 12 is tightly fixed to one side of the support block 13. The top of the limiting plate 12 is higher than the top of the support block 13. The limiting plate 12 and the support block 13 are connected by bolts, and the bottom end of the limiting plate 12 abuts against the top end of the mounting base 11. In actual use, the arc groove 131 of the corresponding size can be selected according to the size of the stator to facilitate the support of stators of different sizes. Since the limiting plate 12 and the support block 13 are connected by bolts, it is convenient to disassemble and install the limiting plate 12 and to fix the limiting plate 12 to one side of the corresponding support block 13. At the same time, when it is necessary to handle or transport, the limiting plate 12 can be removed from the support block 13 for easy handling or transportation of both separately.

[0023] The support block 13 and the mounting base 11 are integrally cast structures, thus ensuring the connection strength between the support block 13 and the mounting base 11.

[0024] The fixture for stator milling of this utility model also includes a first guide rod 3. The mounting base 11 is provided with a first through hole 111. One end of the first guide rod 3 is fixed in the first through hole 111, and the other end extends downward through the mounting base 11.

[0025] A fixture for milling stator grooves also includes a second guide rod 4. The bottom of the arc groove 131 is provided with a second through hole 132. One end of the second guide rod 4 is fixed in the second through hole 132, and the other end extends downward through the support block 13.

[0026] The first guide rod 3 and the second guide rod 4 are both screw rods, and the first through hole 111 and the second through hole 132 are both threaded holes, which facilitates the installation of the first guide rod 3 and the second guide rod 4.

[0027] To facilitate the installation of the first clamping block 1 and the second clamping block 2 on the milling machine, as well as the adjustment of their relative distance and alignment, a sliding groove can be provided on the mounting table of the milling machine to allow them to move along the groove. When the first clamping block 1 and the second clamping block 2 are installed on the milling machine, the other ends of the first guide rod 3 and the second guide rod 4 are inserted into the sliding groove on the milling machine. Through the cooperation of the guide rods and the sliding groove, the first clamping block 1 and the second clamping block 2 can be quickly positioned and installed on the milling machine. When the distance between the first clamping block 1 and the second clamping block 2 needs to be adjusted, the first guide rod and the second guide rod can guide them to move along the sliding groove for easy adjustment.

[0028] The top of the limiting plate 12 is provided with a positioning groove 121. When the stator is placed on the arc groove 131, the line connecting the positioning grooves 121 on both sides of the limiting plate 12 is on the same vertical plane as the line where the highest point of the stator is located. This makes it convenient for the milling machine to position the highest point of the stator when milling the groove, which facilitates the rapid milling and improves the processing efficiency.

[0029] The limiting plate 12 has multiple third through holes 122, which are located on the same straight line and distributed along the height direction of the limiting plate 12. In actual use, after the first clamping block 1 and the second clamping block 2 clamp the stator, a screw can be inserted into the third through hole 122 corresponding to the middle through hole of the stator. The two ends of the screw extend out of the limiting plates 12 on both sides, and then the screw is tightened with nuts. This can further tighten the limiting plates 12 on both sides, ensuring the stability of the limiting plates 12 in clamping the stator and preventing the stator from moving during milling.

[0030] The mounting base 11 has multiple fixing holes 112. Therefore, when the corresponding mounting base 11 needs to be fixed on the mounting table of the milling machine, the external mounting bolts can pass through the corresponding fixing holes 112 to lock the mounting base 11 onto the mounting table, which facilitates installation.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A fixture for milling stator slots, characterized in that, It includes a first clamping block (1) and a second clamping block (2), the first clamping block (1) and the second clamping block (2) are arranged opposite to each other, the structure of the second clamping block (2) is the same as the structure of the first clamping block (1), the first clamping block (1) includes a mounting base (11) and a limiting plate (12), the mounting base (11) is arranged horizontally, the limiting plate (12) is arranged vertically on the mounting base (11), a support block (13) is arranged vertically on one side of the mounting base (11), and an arc groove (131) is provided at the top of the support block (13).

2. The fixture for stator milling according to claim 1, characterized in that, One side of the limiting plate (12) is tightly fixed to one side of the support block (13). The top of the limiting plate (12) is higher than the top of the support block (13). The limiting plate (12) and the support block (13) are connected by bolts. The bottom of the limiting plate (12) abuts against the top of the mounting base (11).

3. A fixture for stator milling according to claim 2, characterized in that, The support block (13) and the mounting base (11) are integrally formed.

4. A fixture for milling stator slots according to any one of claims 1 to 3, characterized in that, It also includes a first guide rod (3), and the mounting base (11) is provided with a first through hole (111). One end of the first guide rod (3) is fixed in the first through hole (111), and the other end extends downward through the mounting base (11) and out.

5. A fixture for stator milling according to claim 4, characterized in that, It also includes a second guide rod (4), and the bottom of the arc groove (131) is provided with a second through hole (132). One end of the second guide rod (4) is fixed in the second through hole (132), and the other end extends downward through the support block (13) and then out.

6. A fixture for milling stator slots according to claim 5, characterized in that, The top of the limiting plate (12) is provided with a positioning groove (121).

7. A fixture for stator milling according to claim 6, characterized in that, The limiting plate (12) is provided with a plurality of third through holes (122), which are located on the same straight line and distributed along the height direction of the limiting plate (12).

8. A fixture for stator milling according to claim 7, characterized in that, The mounting base (11) is provided with multiple fixing holes (112).

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