Stator coil forming device

Abstract

The utility model discloses a stator coil forming device, and relates to the technical field of winding machine tool accessories, the stator coil forming device comprises two groups of baffle plates, a bolt rod is transversely inserted in an adjusting groove, and a winding assembly capable of winding stator coils with different straight edge sizes of motors with the same base model is arranged between the two groups of baffle plates. According to the stator coil forming device, the first forming die, the second forming die, the third forming die, the fourth forming die and the fifth forming die are arranged, when the stator coil forming device is used, five sets of forming dies with corresponding specifications are selected according to production requirements, and the first forming die, the second forming die, the third forming die, the fourth forming die and the fifth forming die are assembled and connected through cylindrical pins; after being assembled, the device is mounted on a winding machine tool, so that the function of manufacturing coils with the same engine base model, the same lower level number and different powers can be realized, and the problem that the device does not have the function of manufacturing coils with the same engine base model, the same lower level number and different powers can be solved.

Description

Technical Field

[0001] This utility model relates to the technical field of winding machine tool accessories, specifically a stator coil forming device. Background Technology

[0002] In small and medium-sized three-phase asynchronous motors, the wound stator core is an indispensable component. The wound stator core consists of the stator core itself, stator coils, etc. The stator coils are manufactured by winding copper wire onto a stator coil forming device according to design requirements. Currently, some companies still manufacture stator coils manually. For motors of the same frame size and model, if the number of poles is the same but the power is different, then the designed stator coils will have the same dimensions except for the straight side dimension L. See [link to relevant documentation]. Figure 1 Currently, for motors of the same frame size with the same number of poles but different power ratings, each type requires a separate stator coil forming device. This leads to wasted resources and manpower, and if the stator coil forming device is not completed within the stipulated time, product delivery delays occur. To address this issue of ensuring on-time delivery without wasting resources, a stator coil forming device has been designed. This device is suitable for forming all stator coils for motors of the same frame size with the same number of poles but different power ratings.

[0003] Now, a novel stator coil forming device is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a stator coil forming device to solve the problem mentioned in the background art that it does not have the function of producing coils with the same number of stages but different power under the same frame model.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stator coil forming device, comprising two sets of baffles, a square spindle groove is provided in the middle of the baffles, and adjustment grooves are respectively provided at the upper and lower ends of the square spindle groove. Two sets of T-shaped grooves are vertically provided on the inner side of the baffles. A bolt rod is horizontally inserted into the interior of the adjustment groove. A flat washer is sleeved on the left side of the bolt rod, and a first nut is threadedly connected to the right side of the bolt rod. A steel spindle is horizontally inserted into the interior of the square spindle groove. A pad is sleeved on the right side of the steel spindle, and a second nut is threadedly connected to the right side of the steel spindle. A winding assembly capable of winding stator coils of different straight side dimensions of the same type of motor frame is provided between the two sets of baffles.

[0006] The winding assembly includes two sets of first forming molds, which are respectively sleeved on the side of the bolt rod away from the first nut. A second forming mold is provided to the right of the first forming mold, a third forming mold is provided to the right of the second forming mold, a fourth forming mold is provided to the right of the third forming mold, and a fifth forming mold is provided to the right of the fourth forming mold. Two sets of T-blocks are fixedly connected to the side of the first forming mold and the fifth forming mold near the baffle. Bolt grooves are provided in the middle position inside the first forming mold, the second forming mold, the third forming mold, the fourth forming mold, and the fifth forming mold. Three sets of positioning holes are provided on the outer ring inside the first forming mold, the second forming mold, the third forming mold, the fourth forming mold, and the fifth forming mold. Cylindrical pins are inserted into the positioning holes.

[0007] As a further technical solution of this utility model, the outer diameter of the bolt rod is adapted to the inner diameter of the adjusting groove, and the bolt rod can slide up and down along the inside of the adjusting groove.

[0008] As a further technical solution of this utility model, the bolt rod passes through the interior of the bolt groove, and the outer diameter of the bolt rod is consistent with the inner diameter of the bolt groove.

[0009] As a further technical solution of this utility model, the positioning holes and cylindrical pins on the second and fourth forming molds are interference fits, while the positioning holes and cylindrical pins on the first, third, and fifth forming molds are clearance fits.

[0010] As a further technical solution of this utility model, the positions and dimensions of the T-block and the T-slot correspond one-to-one, and the T-slot and the bolt slot are fitted with a clearance of 0.05mm to 0.08mm.

[0011] As a further technical solution of this utility model, the right side of the flat washer and the left side of the baffle are in contact with each other, and the left side of the first nut and the washer are in contact with the right side of the baffle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the stator coil forming device not only realizes the function of producing coils with the same number of stages but different power under the same frame model, but also realizes the function of stable position adjustment;

[0013] (1) The device is equipped with a first forming mold, a second forming mold, a third forming mold, a fourth forming mold, a fifth forming mold, a T-block, a bolt groove, a positioning hole, and a cylindrical pin. When in use, the five forming molds of the corresponding specifications are selected according to the production needs. The first forming mold, the second forming mold, the third forming mold, the fourth forming mold, and the fifth forming mold are assembled and connected by cylindrical pins. Then, the bolt rod passes through the bolt groove, and the baffle, the bolt rod, and the steel spindle are assembled and fixed by the first nut, the washer, and the second nut. The entire device can then be assembled and installed on a winding machine. Start the winding machine and wind the copper wire into the groove of the forming mold. After winding, remove the device from the winding machine. After removing the first nut, the washer, and the second nut, the forming mold along with the bolt rod can be removed. Remove the forming molds one by one in the order of the first forming mold, the second forming mold, the third forming mold, the fourth forming mold, and the fifth forming mold to obtain the stator coils in the corresponding positions. It can produce all stator coils of the same frame model motor with the same number of motor poles but different straight edge dimensions, realizing the function of producing coils with the same number of poles but different power under the same frame model.

[0014] (2) By setting an adjustment groove, a T-slot, a bolt rod, a flat washer and a first nut, when in use, the baffle, the first forming mold, the second forming mold, the third forming mold, the fourth forming mold and the fifth forming mold are assembled into one piece by using the bolt rod, the flat washer and the first nut. At this time, the first nut should not be tightened. At the same time, insert the steel spindle, install the pad block and the second nut, adjust the height of the bolt rod up and down along the adjustment groove, adjust the distance between the upper and lower forming molds, and make the distance match the winding needs of the stator coil. Then, tighten the first nut. The T-slot and the T-block cooperate, and the adjustment groove and the bolt rod cooperate, so that the up and down displacement can be smooth, and the function of stable position adjustment is realized. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the baffle structure of this utility model;

[0017] Figure 3 This is a top view of the baffle structure of this utility model;

[0018] Figure 4 This is a front view structural diagram of the mold assembly state of this utility model;

[0019] Figure 5 This is a side view of the first molding die of this utility model;

[0020] Figure 6 This is a top view cross-sectional structural diagram of the mold separation state of this utility model.

[0021] In the diagram: 1. Baffle; 2. Square spindle groove; 3. Adjustment groove; 4. T-slot; 5. Bolt rod; 6. Flat washer; 7. Steel spindle; 8. First forming mold; 9. Second forming mold; 10. Third forming mold; 11. Fourth forming mold; 12. Fifth forming mold; 13. T-block; 14. Bolt groove; 15. Positioning hole; 16. Cylindrical pin; 17. First nut; 18. Spacer block; 19. Second nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-6 A stator coil forming device includes two sets of baffles 1. A square spindle groove 2 is provided in the middle of the baffle 1. Adjustment grooves 3 are provided at the upper and lower ends of the square spindle groove 2. Two sets of T-shaped grooves 4 are vertically provided on the inner side of the baffle 1. A bolt rod 5 is horizontally inserted into the inside of the adjustment groove 3. A flat washer 6 is sleeved on the left side of the bolt rod 5. A first nut 17 is threadedly connected to the right side of the bolt rod 5. A steel spindle 7 is horizontally inserted into the inside of the square spindle groove 2. A pad 18 is sleeved on the right side of the steel spindle 7. A second nut 19 is threadedly connected to the right side of the steel spindle 7. A winding assembly for winding stator coils with different straight edge dimensions of the same type of motor is provided between the two sets of baffles 1.

[0024] Please see Figures 1-6 A stator coil forming device further includes a winding assembly, which includes two sets of first forming molds 8. The two sets of first forming molds 8 are respectively sleeved on the side of the bolt rod 5 far from the first nut 17. A second forming mold 9 is provided on the right side of the first forming mold 8, a third forming mold 10 is provided on the right side of the second forming mold 9, a fourth forming mold 11 is provided on the right side of the third forming mold 10, and a fifth forming mold 12 is provided on the right side of the fourth forming mold 11. Two sets of T-blocks 13 are respectively fixedly connected to the side of the first forming mold 8 and the fifth forming mold 12 near the baffle 1. Bolt grooves 14 are respectively provided in the middle position inside the first forming mold 8, the second forming mold 9, the third forming mold 10, the fourth forming mold 11, and the fifth forming mold 12. Three sets of positioning holes 15 are provided in the outer ring inside the first forming mold 8, the second forming mold 9, the third forming mold 10, the fourth forming mold 11, and the fifth forming mold 12. Cylindrical pins 16 are inserted into the inside of the positioning holes 15.

[0025] The outer diameter of the bolt rod 5 is matched with the inner diameter of the adjusting groove 3. The bolt rod 5 can slide up and down along the inside of the adjusting groove 3. The bolt rod 5 passes through the inside of the bolt groove 14. The outer diameter of the bolt rod 5 is consistent with the inner diameter of the bolt groove 14. The positioning holes 15 and cylindrical pins 16 on the second forming mold 9 and the fourth forming mold 11 are interference fit. The positioning holes 15 and cylindrical pins 16 on the first forming mold 8, the third forming mold 10, and the fifth forming mold 12 are clearance fit, which makes it convenient to assemble forming molds of corresponding specifications according to the winding needs.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the first forming mold 8, the second forming mold 9, the third forming mold 10, the fourth forming mold 11, and the fifth forming mold 12 are assembled and connected by cylindrical pins 16. Then, the bolt rod 5 passes through the bolt groove 14. The baffle 1, the bolt rod 5, and the steel spindle 7 are assembled and fixed by the first nut 17, the pad 18, and the second nut 19. The entire device can then be assembled. After assembly, it is installed on a winding machine. The winding machine is started to wind the copper wire into the groove of the forming mold.

[0027] Example 2: The positions and dimensions of T-block 13 and T-slot 4 correspond one-to-one. T-slot 4 and bolt slot 14 are fitted with a clearance of 0.05mm to 0.08mm. The right side of flat washer 6 and the left side of baffle 1 are in contact. The left side of first nut 17 and pad 18 are in contact with the right side of baffle 1, which facilitates adjustment of the vertical distance.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, when installing the forming mold, do not tighten the first nut 17. Adjust the height of the bolt rod 5 up and down along the adjusting groove 3 to adjust the distance between the upper and lower forming molds. After the distance matches the winding requirements of the stator coil, tighten the first nut 17. The T-slot 4 and T-block 13 cooperate, and the adjusting groove 3 and bolt rod 5 cooperate to make its up and down displacement smooth.

[0029] Working Principle: In use, this invention first selects five molding dies of corresponding specifications according to production needs. The first molding die 8, second molding die 9, third molding die 10, fourth molding die 11, and fifth molding die 12 are assembled and connected via cylindrical pins 16. Then, bolt rods 5 pass through bolt grooves 14. The baffle 1, bolt rods 5, and steel spindle 7 are assembled and fixed via first nuts 17, spacers 18, and second nuts 19. The entire device is then assembled and installed on a winding machine. The winding process is then started. The winding machine winds copper wire into the groove of the forming mold. After winding, the device is removed from the winding machine. After removing the first nut 17, the pad 18, and the second nut 19, the forming mold along with the bolt rod 5 can be removed. The forming molds are removed one by one in the order of the first forming mold 8, the second forming mold 9, the third forming mold 10, the fourth forming mold 11, and the fifth forming mold 12 to obtain the stator coils at the corresponding positions. It is possible to manufacture all stator coils of the same frame model motor with the same number of motor poles but different straight edge dimensions. Assemble the baffle 1, first forming mold 8, second forming mold 9, third forming mold 10, fourth forming mold 11, and fifth forming mold 12 into one piece using bolt rod 5, flat washer 6, and first nut 17. At this time, do not tighten the first nut 17. Simultaneously insert the steel spindle 7, install the pad block 18 and second nut 19, and adjust the height of bolt rod 5 up and down along the adjusting groove 3 to adjust the distance between the upper and lower forming molds. After the distance matches the winding requirements of the stator coil, tighten the first nut 17. The T-slot 4 and T-block 13 cooperate, and the adjusting groove 3 and bolt rod 5 cooperate to make its up and down displacement smooth.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stator coil forming device, comprising two sets of baffles (1), characterized in that: A square spindle groove (2) is provided in the middle of the baffle (1). Adjustment grooves (3) are provided at the upper and lower ends of the square spindle groove (2). Two sets of T-shaped grooves (4) are vertically provided on the inner side of the baffle (1). A bolt rod (5) is horizontally inserted into the inside of the adjustment groove (3). A flat washer (6) is sleeved on the left side of the bolt rod (5). A first nut (17) is threaded on the right side of the bolt rod (5). A steel spindle (7) is horizontally inserted into the inside of the square spindle groove (2). A pad (18) is sleeved on the right side of the steel spindle (7). A second nut (19) is threaded on the right side of the steel spindle (7). A winding assembly that can wind stator coils of different straight edge sizes of motors of the same frame type is provided between the two sets of baffles (1). The winding assembly includes two sets of first forming dies (8), which are respectively sleeved on the side of the bolt rod (5) away from the first nut (17). A second forming die (9) is provided to the right of the first forming die (8), a third forming die (10) is provided to the right of the second forming die (9), a fourth forming die (11) is provided to the right of the third forming die (10), and a fifth forming die (12) is provided to the right of the fourth forming die (11). The first forming die (8) and the fifth forming die (12) are close together. Two sets of T-shaped blocks (13) are fixedly connected to one side of the plate (1). Bolt grooves (14) are respectively provided in the middle position inside the first molding mold (8), the second molding mold (9), the third molding mold (10), the fourth molding mold (11), and the fifth molding mold (12). Three sets of positioning holes (15) are provided in the outer ring inside the first molding mold (8), the second molding mold (9), the third molding mold (10), the fourth molding mold (11), and the fifth molding mold (12). Cylindrical pins (16) are inserted into the positioning holes (15).

2. The stator coil forming device according to claim 1, characterized in that: The outer diameter of the bolt rod (5) is adapted to the inner diameter of the adjusting groove (3), and the bolt rod (5) can slide up and down along the inside of the adjusting groove (3).

3. The stator coil forming device according to claim 1, characterized in that: The bolt rod (5) penetrates the interior of the bolt groove (14), and the outer diameter of the bolt rod (5) is the same as the inner diameter of the bolt groove (14).

4. The stator coil forming device according to claim 1, characterized in that: The positioning holes (15) and cylindrical pins (16) on the second molding die (9) and the fourth molding die (11) are interference fit, while the positioning holes (15) and cylindrical pins (16) on the first molding die (8), the third molding die (10), and the fifth molding die (12) are clearance fit.

5. The stator coil forming apparatus according to claim 1, characterized in that: The positions and dimensions of the T-block (13) and the T-slot (4) correspond one-to-one. The T-slot (4) and the bolt slot (14) are fitted with a clearance of 0.05mm to 0.08mm.

6. The stator coil forming apparatus according to claim 1, characterized in that: The right side of the flat washer (6) and the left side of the baffle (1) are in contact with each other, and the left side of the first nut (17) and the pad (18) are in contact with the right side of the baffle (1).

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