A flat winding machine for magnetic pole coils

Abstract

The present invention provides a flat winding machine for magnetic pole coils, which comprises a workbench, a winding assembly and a pressing assembly; the winding assembly includes a flat winding die movably arranged on the top of the workbench and a winding driving mechanism arranged at the bottom of the workbench. The flat winding die includes a bottom die and a top die mounted on the top surface of the bottom die. A flat winding forming surface perpendicular to the bottom die and a demolding guiding surface inclined inward are formed on the side wall of the top die. The winding driving mechanism is connected to the bottom die to drive the flat winding die to move on the top of the workbench. The pressing assembly includes a pressing base fixedly connected to the workbench, a pressing plate movably connected to the pressing base for pressing the copper row against the bottom die, and a pressing driving mechanism mounted on the pressing base for driving the pressing plate to abut against the flat winding forming surface. A pressing cavity is formed between the pressing plate and the bottom die, and the height of the pressing cavity is the same as the thickness of the copper row. Processing the copper row by the above flat winding machine has the advantages of high automation degree and high production capacity.

Description

Technical Field

[0001] The present invention relates to a magnetic pole coil processing device, in particular to a magnetic pole coil edgewise winding machine. Background Art

[0002] The pole coil is an important component of power generation equipment and plays a vital role in its operation. Currently, the pole coil needs to be processed and formed using a flat winding die. The existing flat winding die consists of a die body that matches the inner edge of the pole coil and a wire pressing hook fixed to the die body by a pin. When in use, the first step is to push the flat winding die and the copper busbar into a rotational position. The second step is to rotate the wire pressing hook on the flat winding die to the position that fixes the copper busbar. The third step is to rotate the flat winding die and the copper busbar 180 degrees counterclockwise. The fourth step is to push the flat winding die and the copper busbar into the rotational position. The fifth step is to use a wooden hammer to hit the wire pressing hook to unhook the copper busbar. All the above steps are then repeated to wind the next turn. However, the processing steps of the pole coil described above have problems with low automation and low production capacity. Summary of the Invention

[0003] In view of this, an object of the present invention is to provide a magnetic pole coil flat winding machine, which has the advantages of a high degree of automation and high production capacity.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a magnetic pole coil flat winding machine, including a workbench, a winding assembly and a pressing assembly; the winding assembly includes a flat winding mold movably arranged on the top of the workbench and a winding drive mechanism arranged at the bottom of the workbench, the flat winding mold includes a bottom mold and a top mold installed at the top surface of the bottom mold, the side wall of the top mold is formed with a flat winding forming surface perpendicular to the bottom mold and a demolding guide surface inclined inwardly, the winding drive mechanism is connected to the bottom mold to drive the flat winding mold to move on the top of the workbench, the pressing assembly includes a pressing base fixedly connected to the workbench, a pressing plate movably connected to the pressing base to press the copper bar against the bottom mold, and a pressing drive mechanism installed on the pressing base to drive the pressing plate to press against the flat winding forming surface, a pressing cavity is formed between the pressing plate and the bottom mold, and the height of the pressing cavity is the same as the thickness of the copper bar.

[0005] Through the above technical solution, when the copper busbar needs to be processed, the copper busbar is placed into the holding cavity. At this time, the copper busbar contacts the flat winding forming surface, and the holding plate presses the copper busbar against the top surface of the bottom mold. During use, the flat winding mold is controlled to rotate by the winding drive mechanism. At this time, the copper busbar can be bent under the joint action of the flat winding mold and the holding plate. When one turn of the copper busbar is wound, the holding plate can guide the wound part to move upward so that it is opposite to the left and right of the demolding guide surface. Since the demolding guide surface is set at an angle, the wound part of the copper busbar can be separated from the top mold, completing the demolding work. Processing the copper busbar using the above flat winding machine has the advantages of high automation and high production capacity.

[0006] Preferably, two positioning columns are provided on the top surface of the top mold, and the two positioning columns are respectively provided at both ends of the top mold.

[0007] Through the above technical solution, the two positioning posts cooperate to limit the part of the copper busbar where the winding is completed, so that it is not easily scattered on the workbench.

[0008] Preferably, a mounting groove is provided on the top surface of the bottom mold, a limiting mechanism is provided in the mounting groove, and the top of the limiting mechanism protrudes from the mounting groove to drive the copper busbar to press against the flat-wound forming surface.

[0009] Through the above technical solution, the limiting mechanism can press the copper busbar against the flat winding forming surface, so that the copper busbar wound in this way has a more uniform shape and higher quality.

[0010] Preferably, the limiting mechanism includes a support spring arranged at the bottom of the mounting slot and a limiting column slidably connected to the top of the mounting slot. When the support spring is in a force balance state, the upper end of the limiting column protrudes from the mounting slot.

[0011] With the above technical solution, the limiting post can press the copper bar against the flat winding forming surface during the copper bar processing. When the copper bar is wound, the limiting post is pressed down so that the limiting post is stored in the installation groove, and the wound copper bar can be removed more conveniently.

[0012] Preferably, a positioning groove is provided on the side wall of the limiting column, and the positioning groove is arranged along the axial direction of the limiting column. A positioning rod is threadedly connected to the side wall of the bottom mold, and the end of the positioning rod is slidably connected to the positioning groove.

[0013] Through the above technical solution, the positioning rod cooperates with the positioning groove to limit the limiting column, so that the limiting column is not easily separated from the installation groove.

[0014] Preferably, the bottom die includes an upper template, a lower template, and a plurality of connecting columns disposed between the upper template and the lower template; a roller is rotatably connected to the side wall of the pressing base, and the roller abuts against the side wall of the lower template; the winding driving mechanism includes a driving motor and a rotating wheel disposed on the output shaft of the driving motor, the rotating wheel is located between the upper template and the lower template, and a plurality of grooves for the connecting columns to be inserted are formed in the side wall of the rotating wheel.

[0015] Through the above technical solution, since the upper template abuts against the roller, during the process of controlling the rotation of the rotating wheel by the driving motor, a plurality of connecting columns are successively inserted into the grooves to control the movement of the bottom die on the top of the workbench and complete the winding work of the copper bar.

[0016] Preferably, a sliding groove is formed on the top surface of the pressing base, and the pressing plate is slidably connected in the sliding groove.

[0017] Through the above technical solution, the inner groove wall of the sliding groove can abut against the pressing plate and limit the pressing plate.

[0018] Preferably, the pressing driving mechanism includes a rotating ring, a first extension arm, a second extension arm, and a counterweight. The rotating ring is rotatably connected to the pressing base and is located above the sliding groove. One end of the first extension arm is fixedly connected to the rotating ring, and the other end of the first extension arm extends into the sliding groove and abuts against the pressing plate. One end of the second extension arm is fixedly connected to the rotating ring, and the other end of the second extension arm extends away from the flat winding die. The counterweight is connected to the end of the second extension arm away from the rotating ring.

[0019] Through the above technical solution, the counterweight connected to the second extension arm can drive the first extension arm to rotate through the rotating ring, so that the pressing plate abuts against the flat winding forming surface.

[0020] Preferably, a guiding inclined surface is provided at the edge of the pressing plate.

[0021] Through the above technical solution, the guiding inclined surface can guide the upper turn of the copper bar to move upward to separate it from the lower turn of the copper bar.

[0022] Preferably, a pretreatment mechanism is further included. The pretreatment mechanism includes a pressing plate, an adjusting bolt, and a thrust spring. A through groove is formed at the bottom of the pressing plate. When the copper bar passes through the through groove, the copper bar abuts against the inner groove wall of the through groove. The adjusting bolt penetrates through the pressing plate and is threadedly connected to the workbench. The thrust spring is located between the workbench and the pressing plate, and the thrust spring is sleeved on the adjusting bolt.

[0023] Through the above technical solution, the pressing plate cooperates with the workbench to flatten the copper bar for preprocessing the copper bar. The through groove provided at the bottom of the pressing plate can limit the copper bar, making it not easy for the copper bar to shift. The adjusting bolt and the thrust spring cooperate to adjust the height of the pressing plate to adapt to copper bars of different thicknesses. When it is necessary to adjust the height of the pressing plate, only need to rotate the adjusting bolt. When rotating the adjusting bolt forward, the head of the adjusting bolt presses down the pressing plate, reducing the gap between the pressing plate and the workbench. When rotating the adjusting bolt backward, the thrust spring pushes up the pressing plate, making the pressing plate abut against the head of the adjusting bolt. At this time, the gap between the pressing plate and the workbench increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Embodiment 1;

[0025] Figure 2 is a schematic structural diagram of the pretreatment mechanism;

[0026] Figure 3 is a schematic structural diagram of the winding assembly;

[0027] Figure 4 is a schematic structural diagram of the pressing assembly;

[0028] Figure 5 is a schematic structural diagram of Embodiment 2;

[0029] Figure 6 is Figure 5 an enlarged view of part A of

[0030] Reference numerals: 1, workbench; 2, winding assembly; 21, flat winding die; 211, bottom die; 2111, upper template; 2112, lower template; 2113, connecting column; 212, top die; 22, winding drive mechanism; 221, drive motor; 222, rotating wheel; 3, pressing assembly; 31, pressing base; 32, pressing plate; 33, pressing drive mechanism; 331, rotating ring; 332, extension arm one; 333, extension arm two; 334, counterweight; 4, flat winding forming surface; 5, demolding guiding surface; 6, pressing cavity; 7, positioning column; 8, installation groove; 9, limiting mechanism; 91, support spring; 92, limiting column; 10, positioning groove; 11, positioning rod; 12, groove; 13, sliding groove; 14, guiding inclined surface; 15, pretreatment mechanism; 151, pressing plate; 152, adjusting bolt; 153, thrust spring; 16, through groove; 17, stop block; 18, storage groove; 19, heating wire; 20, storage battery; 23, control switch; 231, contact piece one; 232, contact piece two; 24, movable groove; 25, return spring; 26, movable column; 27, roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0032] Embodiment 1:

[0033] A flat winding machine for magnetic pole coils, as Figure 1 shown, includes a workbench 1, a pretreatment mechanism 15, a winding assembly 2, and a pressing assembly 3.

[0034] As Figures 1 to 4 shown, the pretreatment mechanism 15 includes a pressing plate 151, an adjusting bolt 152, and a thrust spring 153. The pressing plate 151 is placed on the top surface of the workbench 1. A through groove 16 is formed at the bottom of the pressing plate 151. When the copper bar passes through the through groove 16, the copper bar abuts against the inner groove wall of the through groove 16, so that the copper bar is not likely to move laterally during the processing. The head of the adjusting bolt 152 abuts against the top surface of the pressing plate 151, and the threaded section of the adjusting bolt 152 penetrates downward through the pressing plate 151 and is threadedly connected to the workbench 1. In this embodiment, there are four adjusting bolts 152 and they are respectively arranged at the four corners of the pressing plate 151. The thrust spring 153 is arranged between the workbench 1 and the pressing plate 151, and both ends of the thrust spring 153 respectively abut against the workbench 1 and the pressing plate 151. In this embodiment, there are four thrust springs 153 and they are respectively sleeved on the four adjusting bolts 152.

[0035] The winding assembly 2 includes a flat winding die 21 movably arranged on the top of the workbench 1 and a winding driving mechanism 22 arranged at the bottom of the workbench 1. During use, the flat winding die 21 is controlled to move on the top of the workbench 1 by the winding driving mechanism 22 for winding the copper bar.

[0036] The flat winding die 21 includes a top die 212 and a bottom die 211 fixedly arranged at the bottom surface of the top die 212.

[0037] A flat winding forming surface 4 and a demolding guiding surface 5 are formed on the side wall of the top die 212, and the flat winding forming surface 4 is located below the demolding guiding surface 5. The flat winding forming surface 4 is perpendicular to the top surface of the bottom die 211, and the height of the flat winding forming surface 4 is the same as the thickness of the copper bar. In this embodiment, the height of the flat winding forming surface 4 is 3 millimeters. The demolding guiding surface 5 inclines towards the center of the top die 212, so that when the copper bar is opposite to the demolding guiding surface 5 left and right, the copper bar can be more conveniently separated from the top die 212 and is not likely to hinder the winding of the next turn of the copper bar. In this embodiment, the inclination angle of the demolding guiding surface 5 is 5 degrees. Two positioning columns 7 are threadedly connected to the top surface of the top die 212. The two positioning columns 7 are parallel to each other and are respectively arranged at both ends of the top die 212.

[0038] An installation groove 8 is formed in the top surface of the bottom die 211. The installation groove 8 extends along a direction perpendicular to the top surface of the bottom die 211, and the distance between the installation groove 8 and the flat winding forming surface 4 is equal to the width of the copper bar. A limiting mechanism 9 is arranged in the installation groove 8, and the top of the limiting mechanism 9 protrudes from the installation groove 8 to drive the copper bar to be pressed against the flat winding forming surface 4.

[0039] The limiting mechanism 9 includes a support spring 91 and a limiting column 92 that are sequentially placed inside the installation groove 8. When the support spring 91 is in a force equilibrium state, the upper end of the limiting column 92 protrudes from the installation groove 8 and presses against the side wall of the copper bar. A positioning groove 10 is formed in the side wall of the limiting column 92 facing away from the top die 212, and the positioning groove 10 extends along the axial direction of the limiting column 92. A positioning rod 11 is threadedly connected to the side wall of the bottom die 211, and the end of the positioning rod 11 is slidably connected in the positioning groove 10. When the support spring 91 is in a force equilibrium state, the positioning rod 11 abuts against the inner groove wall at the bottom of the positioning groove 10. When the positioning rod 11 is completely received inside the installation groove 8, the positioning rod 11 abuts against the inner groove wall at the top of the positioning groove 10.

[0040] The bottom die 211 includes an upper template 2111, a lower template 2112, and a plurality of connecting columns 2113 arranged between the upper template 2111 and the lower template 2112. A driving cavity is formed between the upper template 2111 and the lower template 2112, and a through hole is formed through the lower template 2112, and the through hole is communicated with the driving cavity. The plurality of connecting columns 2113 are equally spaced along the edges of the upper template 2111 and the lower template 2112.

[0041] The winding driving mechanism 22 is connected to the bottom die 211 to drive the flat winding die 21 to move on the top of the workbench 1. The winding driving mechanism 22 includes a driving motor 221 arranged in the workbench 1 and a rotating wheel 222 arranged on the output shaft of the driving motor 221. The rotating wheel 222 is located in the driving cavity, and a plurality of grooves 12 for the connecting columns 2113 to be inserted into are formed in the side wall of the rotating wheel 222. When the driving motor 221 drives the rotating wheel 222 to rotate, the plurality of connecting columns 2113 can be sequentially inserted into the grooves 12 to drive the flat winding die 21 to move.

[0042] The pressing assembly 3 includes a pressing base 31 fixedly connected to the workbench 1, a pressing plate 32 movably connected to the pressing base 31 for pressing the copper bar against the bottom die 211, and a pressing driving mechanism 33 installed on the pressing base 31 for driving the pressing plate 32 to press against the flat winding forming surface 4. During use, the pressing driving mechanism 33 applies a force to the pressing plate 32 so that the pressing plate 32 slides towards the side of the top die 212.

[0043] A roller 27 is rotatably connected to the side wall of the pressing base 31, and the roller 27 abuts against the side wall of the lower template 2112. A sliding groove 13 is formed in the top surface of the pressing base 31, and the pressing plate 32 is slidably connected in the sliding groove 13. A pressing cavity 6 is formed between the pressing plate 32 and the bottom die 211, and the height of the pressing cavity 6 is the same as the thickness of the copper bar. A guiding inclined surface 14 is provided at the edge of the pressing plate 32 to guide the separation of the upper turn of the copper bar from the lower turn of the copper bar. The pressing driving mechanism 33 includes a rotating ring 331, a first extension arm 332, a second extension arm 333, and a counterweight 334. The rotating ring 331 is rotatably connected to the pressing base 31, and the rotating ring 331 is located above the sliding groove 13. One end of the first extension arm 332 is fixedly connected to the rotating ring 331, and the other end of the first extension arm 332 extends into the sliding groove 13 and abuts against the pressing plate 32. One end of the second extension arm 333 is fixedly connected to the rotating ring 331, and the other end of the second extension arm 333 extends away from the flat winding die 21. The counterweight 334 is connected to the end of the second extension arm 333 away from the rotating ring 331 to drive the rotation of the rotating ring 331, the first extension arm 332, and the second extension arm 333.

[0044] Embodiment 2:

[0045] The difference between Embodiment 2 and Embodiment 1 is that, as Figure 5 , Figure 6 shown, a stopper 17 is provided at the bottom surface of the pressing plate 32. During use, the stopper 17 can abut against the copper bar and press and fix the copper bar on the flat winding forming surface 4. In this way, the shape of the copper bar after bending is relatively uniform, and the quality of the magnetic pole coil can be guaranteed.

[0046] A receiving groove 18 is formed in the bottom surface of the stopper 17, and a heating wire 19 is spirally arranged inside the receiving groove 18. When the heating wire 19 is energized, it can heat the edge of the copper bar, making the bending process of the copper bar more convenient, and ensuring that the edge of the copper bar is not easily broken during the bending process, which can further guarantee the quality of the magnetic pole coil.

[0047] A storage battery 20 is embedded in the side wall of the pressing base 31 close to the flat winding die 21. A control switch 23 is provided between the pressing base 31 and the stopper 17. The control switch 23 is used to control the on-off between the storage battery 20 and the heating wire 19 to achieve the purpose of saving energy.

[0048] The control switch 23 includes a contact piece 1 231 and a contact piece 232. Contact piece 1 231 is fixedly connected to the side wall of the block 17 near the pressure base 31. Two metal contacts 1 are arranged side by side on the side wall of the block 17 near the pressure base 31. Two connecting wires 1 are installed on the side wall of the block 17 near the pressure base 31. One end of the connecting wire 1 is connected to the heating wire 19, and the other end of the connecting wire 1 is connected to the metal contact 1. A movable slot 24 is provided on the side wall of the pressure base 31 near the block 17. The movable slot 24 is arranged along the sliding direction of the pressure plate 32. A return spring 25 is provided within the movable groove 24. One end of the return spring 25 is fixedly connected to the inner groove wall of the movable groove 24 facing away from the stopper 17. The other end of the return spring 25 is provided with a movable column 26. The movable column 26 is slidably connected to the movable groove 24. When the return spring 25 is in a force-balanced state, the end of the movable column 26 facing away from the return spring 25 protrudes from the notch of the movable groove 24. Contact piece 232 is fixedly connected to the end of the movable column 26. Contact piece 232 is provided with two metal contacts 2 near the side wall of the stopper 17. The two metal contacts 2 are opposite to the two metal contacts one by one. Contact piece 232 is provided with two connecting wires 2 near the side wall of the pressure base 31. One end of the connecting wire 2 is connected to the metal contact 2, and the other end of the connecting wire 2 is connected to the battery 20.

[0049] When the holding plate 32 contacts the bending point of the edge of the top mold 212, the copper busbar is about to be bent. At this time, the top mold 212 drives the holding plate 32 to gradually move toward the side of the holding base 31. When the two metal contacts 1 on the contact piece 1 231 touch the two metal contacts 2 on the contact piece 2 232, the battery 20 is connected to the heating wire 19, and the heating wire 19 generates heat and heats the edge of the copper busbar, making the bending process of the copper busbar more convenient and less likely to break during the bending process. When the bending point of the holding plate 32 and the edge of the top mold 212 are offset, the holding plate 32 is reset under the action of the pressing drive mechanism 33, and the two metal contacts 1 on the contact piece 1 231 separate from the two metal contacts 2 on the contact piece 2 232, and the heating wire 19 is powered off.

[0050] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A flat winding machine for magnetic pole coils, characterized in that: It includes a workbench (1), a winding component (2) and a pressing component (3); the winding component (2) includes a flat winding die (21) movably arranged on the top of the workbench (1) and a winding driving mechanism (22) arranged at the bottom of the workbench (1). The flat winding die (21) includes a bottom die (211) and a top die (212) installed on the top surface of the bottom die (211). A flat winding forming surface (4) perpendicular to the bottom die (211) and a demolding guiding surface (5) inclined inward are formed on the side wall of the top die (212). The winding driving mechanism (22) is connected to the bottom die (211) to drive the flat winding die (21) to move on the top of the workbench (1). The pressing component (3) includes a pressing base (31) fixedly connected to the workbench (1), a pressing plate (32) movably connected to the pressing base (31) for pressing the copper bar against the bottom die (211), and a pressing driving mechanism (33) installed on the pressing base (31) for driving the pressing plate (32) to press against the flat winding forming surface (4). A pressing cavity (6) is formed between the pressing plate (32) and the bottom die (211), and the height of the pressing cavity (6) is the same as the thickness of the copper bar.

2. The flat winding machine for magnetic pole coils according to claim 1, wherein: Two positioning columns (7) are arranged on the top surface of the top die (212), and the two positioning columns (7) are respectively arranged at both ends of the top die (212).

3. A flat winding machine for magnetic pole coils according to claim 1, characterized in that: An installation groove (8) is opened on the top surface of the bottom die (211), and a limiting mechanism (9) is arranged in the installation groove (8). The top of the limiting mechanism (9) protrudes from the installation groove (8) to drive the copper bar to press against the flat winding forming surface (4).

4. The flat winding machine for magnetic pole coils according to claim 3, characterized in that: The limiting mechanism (9) includes a supporting spring (91) arranged at the bottom of the installation groove (8) and a limiting column (92) slidably connected to the top of the installation groove (8). When the supporting spring (91) is in a force balance state, the upper end of the limiting column (92) protrudes from the installation groove (8).

5. The flat winding machine for magnetic pole coils according to claim 4, characterized in that: A positioning groove (10) is opened on the side wall of the limiting column (92). The positioning groove (10) is arranged along the axial direction of the limiting column (92). A positioning rod (11) is threadedly connected to the side wall of the bottom die (211), and the end of the positioning rod (11) is slidably connected in the positioning groove (10).

6. A flat winding machine for a magnetic pole coil according to claim 1, characterized in that: The bottom die (211) includes an upper template (2111), a lower template (2112), and a plurality of connecting columns (2113) disposed between the upper template (2111) and the lower template (2112); a roller (27) is rotatably connected to the side wall of the pressing base (31), and the roller (27) abuts against the side wall of the lower template (2112); the winding drive mechanism (22) includes a drive motor (221) and a rotating wheel (222) disposed on the output shaft of the drive motor (221), the rotating wheel (222) is located between the upper template (2111) and the lower template (2112), and a plurality of grooves (12) for the connecting columns (2113) to be inserted are formed in the side wall of the rotating wheel (222).

7. A flat winding machine for magnetic pole coils according to claim 1, characterized in that: A sliding groove (13) is formed in the top surface of the pressing base (31), and the pressing plate (32) is slidably connected in the sliding groove (13).

8. A flat winding machine for magnetic pole coils according to claim 7, characterized in that: The pressing drive mechanism (33) includes a rotating ring (331), a first extension arm (332), a second extension arm (333), and a counterweight (334). The rotating ring (331) is rotatably connected to the pressing base (31), and the rotating ring (331) is located above the sliding groove (13). One end of the first extension arm (332) is fixedly connected to the rotating ring (331), the other end of the first extension arm (332) extends into the sliding groove (13) and abuts against the pressing plate (32). One end of the second extension arm (333) is fixedly connected to the rotating ring (331), the other end of the second extension arm (333) extends away from the flat winding die (21), and the counterweight (334) is connected to the end of the second extension arm (333) away from the rotating ring (331).

9. A flat winding machine for magnetic pole coils according to claim 1, characterized in that: A guiding inclined surface (14) is provided at the edge of the pressing plate (32).

10. A flat winding machine for magnetic pole coils according to claim 1, characterized in that: It further includes a pretreatment mechanism (15). The pretreatment mechanism (15) includes a pressing plate (151), an adjusting bolt (152), and a thrust spring (153). A through groove (16) is formed at the bottom of the pressing plate (151). When the copper bar passes through the through groove (16), the copper bar abuts against the inner groove wall of the through groove (16). The adjusting bolt (152) penetrates through the pressing plate (151) and is threadedly connected to the workbench (1). The thrust spring (153) is located between the workbench (1) and the pressing plate (151), and the thrust spring (153) is sleeved on the adjusting bolt (152).

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