Method for synthesizing coreless motor coil by lapping and rolling multiple rhombic coils

Abstract

The invention discloses a method for synthesizing a coreless motor coil by lapping and rolling a multi-rhombus coil, which comprises the following steps: taking a multi-sheet rhombus coil, the inner hole of the coil is rhombus-shaped, and the hole wall of the inner hole comprises diagonal points A and B which are oppositely arranged along the left-right direction; the left side and the right side of each sheet-shaped rhombic coil are pulled open, pressure is applied to the sheet-shaped rhombic coils, the sheet-shaped rhombic coils are deformed and attached to the outer side wall of the center cylinder, and the diagonal point A and the diagonal point B of each sheet-shaped rhombic coil are hung on the two different telescopic positioning columns respectively; all the sheet-shaped rhombic coils are wound on the periphery of the central cylinder in a lap mode according to a preset rule and jointly form an initial rolling circle coil. Compared with the prior art, all the sheet-shaped rhombic coils are wound on the periphery of the central cylinder according to the preset stacking rule, the deformed sheet-shaped rhombic coils are hung on the telescopic positioning column according to a certain rule in a stacking mode, namely, a complete primarily-rolled round coil is formed, the thought is novel, integral forming is achieved, and the working procedure is simple.

Description

Technical Field

[0001] The invention belongs to the technical field of hollow cup motor coil manufacturing methods, and in particular relates to a method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils. Background Art

[0002] The coreless motor coil is the core component of the motor, and the quality of its manufacturing process directly affects the overall performance of the motor.

[0003] Coreless motor coils involve a variety of manufacturing processes. Stacking and then rolling multiple diamond-shaped coils effectively increases the number of turns and inductance, optimizes the magnetic circuit structure, and improves the motor's output power and torque density. This method also helps improve the coil's heat dissipation, reduces performance degradation caused by heat, and meets the demands of high-end applications for long-term, stable motor operation. Therefore, stacking and then rolling multiple coreless motor coils has become a key technical approach to improving motor performance.

[0004] like Figure 1 As shown, in the prior art, the equipment used to implement the process of "stacking and then rolling multiple hollow cup motor sheet-shaped diamond coils" includes: stacking tooling 01, coarse rolling equipment 02, and fine rolling equipment 03. Stacking tooling 01 includes a flat support plate 015 and positioning posts (such as the first positioning post 011 and the third positioning post 013) fixed to the support plate 015 and arranged perpendicular to the support plate 015. The distance between adjacent positioning posts is equal. The positioning posts are used to ensure the stacking accuracy of the multiple sheet-shaped diamond coils. During specific implementation, the distance between the positioning posts is set according to the specifications and shape of the sheet-shaped diamond coils. Coarse rolling equipment 02 includes a material conveyor belt and a rolling drum 021 located above the material conveyor belt. Fine rolling equipment 03 includes a rolling mold.

[0005] The process for achieving "stacked and then rolled multiple coreless motor sheet-shaped diamond coils" includes: sheet-shaped coil stacking, rough rolling and fine rolling. The stacking process of multiple sheet-like diamond coils is as follows: manually pull the left and right sides of the first sheet-like diamond coil 04 apart, and then put it on the first positioning post 011 and the third positioning post 013. After releasing the hand, the first sheet-like diamond coil 04 is retracted on both sides under the action of elastic force, and the two inner sides are just in contact with the first positioning post 011 and the third positioning post 013, completing the placement of the first sheet-like diamond coil 04; manually pull the left and right sides of the second sheet-like diamond coil 05 apart, and then put it on the second positioning post 012 and the fourth positioning post 014. After releasing the hand, the second sheet-like diamond coil 05 is retracted on both sides under the action of elastic force, and the two inner sides are just in contact with the second positioning post 012 and the fourth positioning post 014, completing the placement of the second sheet-like diamond coil 05; repeat the above steps to complete the stacking of all the sheet-like diamond coils, and the stacked sheet-like diamond coils can be fixed into an integral sheet-like stacked coil body 06 by gluing or hot pressing. The rough rolling process involves using rough rolling equipment 02 to wind the integrated sheet-shaped stacked coil body 06 into an open circular ring-shaped stacked coil body 07. Specifically, the sheet-shaped stacked coil body 06 is manually introduced into the winding drum 021, where it is pressed to achieve rough rolling. The fine rolling process involves using fine rolling equipment 03 to wind the open circular ring-shaped stacked coil body 07 into a closed, complete circle, resulting in the coreless motor coil 08.

[0006] The shortcomings of existing technologies include: the rough coiling process cannot form a complete circle, requiring the use of fine coiling equipment to complete the entire process. Furthermore, the manual feeding of the stacked coil sheets into the winding drum during rough coiling cannot guarantee the accurate feeding direction of the coil sheets. If the coil sheets are fed at an angle, the resulting rough coil will inevitably be spiral, seriously affecting the quality of the finished product. Furthermore, each process must be completed on different equipment, making the process complex.

[0007] Therefore, it is necessary to provide a new method for synthesizing hollow cup motor coils by stacking and winding multiple diamond coils to solve the above technical problems. Summary of the Invention

[0008] (1) Technical problems to be solved: Based on this, the present invention provides a method for synthesizing hollow cup motor coils by stacking and winding multiple diamond coils, aiming to solve the technical problems in the prior art of realizing "stacked and rolled multiple hollow cup motor sheet diamond coils", in which the coarse rolling process cannot form a complete circle and needs to be coordinated with fine rolling equipment, the manual introduction of the sheet-shaped stacked coil body is difficult to ensure the accuracy of the feeding direction and is likely to affect the quality of the finished product, and each process needs to be completed on different equipment, resulting in a complicated process.

[0009] (2) Technical solution: In order to solve the above technical problems, the present invention proposes a method for synthesizing hollow cup motor coils by stacking and winding multiple diamond coils. The method applies a hollow cup motor coil winding device, and the hollow cup motor coil winding device includes a central cylinder and n retractable positioning columns, n ≥ 3 and n is a natural number; the retractable positioning columns include a hanging state and a detached state for realizing unloading; when the retractable positioning column is in the hanging state: one end of the retractable positioning column is connected to the central cylinder, and the other end of the retractable positioning column protrudes from the outer wall of the central cylinder, and n retractable positioning columns are arranged around the central cylinder; the retractable positioning column is put into the detached state: the retractable positioning column is completely detached from the central cylinder, or the retractable positioning column is completely accommodated in the central cylinder; The method for synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils comprises the following steps: Material preparation step: taking n sheet-shaped diamond coils, wherein: the inner hole of the sheet-shaped diamond coil is diamond-shaped, and the inner hole wall includes a diagonal point A and a diagonal point B arranged opposite to each other in the left and right directions; Coil stacking steps: pull the left and right sides of each sheet-like diamond coil apart, and expand the distance between the diagonal point A and the diagonal point B to H; keep the distance between the diagonal point A and the diagonal point B at H, and when the retractable positioning column is in the hanging state, apply pressure to the sheet-like diamond coil to deform the sheet-like diamond coil and fit the outer wall of the central cylinder, and make the diagonal point A and the diagonal point B of the sheet-like diamond coil respectively hang on two different retractable positioning columns; all the sheet-like diamond coils are stacked and wound on the outer circumference of the central cylinder according to a preset rule to form a preliminary round coil together.

[0010] (III) Beneficial effects: The method of the present invention winds all the sheet-like diamond coils on the outer periphery of the central cylinder according to a preset stacking pattern. After the deformed sheet-like diamond coils are hung on the retractable positioning posts according to a certain pattern, a complete cylindrical initial coil can be formed without an additional rolling process. Each sheet-like diamond coil is precisely positioned by two retractable positioning posts to ensure the quality of the finished product. Compared with the prior art, the new diamond coil rolling method of the present invention creatively changes the traditional scheme of stacking coils along a straight line to a new scheme of stacking sheet-like diamond coils along a circular ring. The coil stacking and rolling can be completed at one workstation, and the process is simple. The method of the present invention is novel in concept. Through a simple process, the one-piece molding of the hollow cup motor coil is achieved, and the finished product quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 Schematic diagram of the equipment and process for achieving "diamond-shaped sheet coil stacking and rolling" in the background technology of the present invention; Figure 2 Schematic diagram of the process of the present invention; Figure 3 A schematic diagram of the overall structure of the device used in the method of the present invention; Figure 4 In the device to which the method of the present invention is applied: a three-dimensional schematic diagram of the upper plate module; Figure 5 In the device to which the method of the present invention is applied: a schematic diagram of a main view of an upper plate module; Figure 6 The device for applying the method of the present invention is as follows: a three-dimensional schematic diagram of a synchronous column pressing device; Figure 7 A schematic diagram of a portion of the structure of a synchronous column pressing device in the device to which the method of the present invention is applied; Figure 8 A schematic diagram of a portion of the structure of a synchronous coil pressing device in the device to which the method of the present invention is applied; Figure 9 for Figure 8 A cross-sectional schematic diagram; Figure 10 In the device for applying the method of the present invention: a three-dimensional schematic diagram of a coil placement platform module; Figure 11 In the device to which the method of the present invention is applied: a cross-sectional schematic diagram of a portion of the structure of the coil placement platform module; Figure 12 In the device to which the method of the present invention is applied: a three-dimensional schematic diagram of a transverse telescopic power unit; Figure 13 In the device to which the method of the present invention is applied: a comparison diagram of the two states of the movable lifting plate (from left to right: ascending state, descending state); Figure 14 In the device for applying the method of the present invention: a comparison diagram of the three states of the coil placement platform (from left to right: positioning state, transition state, and material return state); Figure 15 The present invention is: a three-dimensional schematic diagram of an arc-shaped sheet diamond coil; Figure 16 Schematic top view of the arc-shaped diamond coil in the present invention; Figure 17 Schematic diagram of the positioning of the sheet-shaped diamond coil at a preset position in the material positioning step in the method of the present invention Figure 1 ; (top-down perspective); Figure 18 Schematic diagram of the material positioning step in the method of the present invention: the diamond-shaped coil in the sheet is positioned at a preset position Figure 2 (stereoscopic perspective); Figure 19 Schematic diagram of the material positioning step in the method of the present invention: the diamond-shaped coil in the sheet is positioned at a preset position Figure 3 (The focus is on the state where the retractable pressure column unit extends into the sheet-like diamond coil); Figure 20 The method of the present invention is as follows: a schematic diagram of a coil obtained in the coil shaping step Figure 1 (Top-down perspective); Figure 21 The method of the present invention is as follows: a schematic diagram of a coil obtained in the coil shaping step Figure 2 (The emphasis is on illustrating the state where the wound coil is arranged around the rotating central cylinder).

[0013] Figure 22 This is a physical photo of the hollow cup motor coil winding equipment used in the method of the present invention.

[0014] Description of reference numerals: 01. Stacking tooling; 02. Coarse rolling equipment; 03. Fine rolling equipment; 04. First diamond-shaped sheet coil; 05. Second diamond-shaped sheet coil; 06. Sheet-shaped stacked coil body; 07. Open ring-shaped stacked coil body; 08. Hollow cup motor coil; 011. First positioning post; 012. Second positioning post; 013. Third positioning post; 014. Fourth positioning post; 015. Support plate; 021. Rolling cylinder.

[0015] 100, arc-shaped sheet diamond coil; 300, round coil; 120. Coil placement platform module; 11. Center cylinder; 12. Fixed support plate; 13. Movable lifting plate; 14. Coil slot; 15. Movable plate lifting power; 16. Support frame; 17. Locking screw; 18. Adjusting screw; 19. Coil winding channel; 111, clamping ring groove; 121, fixed disk body; 122, fixed clamping column; 131. Movable disc body; 132. Movable clamping column; 133. Material return ring; 151. Descending drive spring; 152. Guide plate; 153. Transverse telescopic power unit; 154. Rolling element; 161, supporting chassis; 162, supporting vertical frame; 1521, driven driving surface; 1522, first limiting ring; 1531, wedge; 1532, lateral telescopic drive; 1611, center column insertion slot; 1612, locking member mounting hole; 15221, descent limit plane; 15311, active drive surface; 21. Telescopic positioning column; 22. Center stop rod; 23. Telescopic drive; 24. Base plate; 25. Retaining ring; 26. Bushing; 27. Column head clamping gap; 28. Spring pressure ring; 30. Joint mounting bracket; 31. Trachea joint; 32. Rotary joint; 34. Sensor mounting bracket; 35. Induction ring; 37. Second sensor; 38. Pressure plate; 39. Compression spring; 40. Rotary drive; 41. Driving gear; 42. Driven gear; 112, sliding hole; 211. Positioning the main body section; 212. Column capital section; 221, spring section; 222, pushing section; 223, sliding section; 224, connecting section; 281, guide surface; 2111, abutment end; 2121, positioning end; 2122, arc surface; 2211, support step ring; 570, upper plate module; 5. Synchronous coil pressing device; 51. Front pressure coil fixing plate; 52. Retractable pressure coil unit; 53. Upper lifting ring plate; 54. Upper lifting power member; 55. Upper wedge-shaped active pressure block; 56. Upper tension spring; 57. Upper vertical rod; 59. Upper vertical sliding assembly; 60. Horizontal sliding assembly; 61. Tension spring connecting adjustment screw; 62. Set screw; 63. Upper power member mounting plate; 511, feed port; 521, three-pressure point mounting plate; 522, first rotating wheel; 523, coil pressure head; 541, first power telescopic shaft; 551, upper active extrusion surface; 591, upper vertical slide rail; 592, upper vertical slide block; 601, transverse slide rail; 602, first transverse slide block; 631, upper mounting vertical plate; 632, first upper mounting horizontal plate; 633, first lower mounting horizontal plate; 5231, spring sleeve; 5232, first compression spring; 5233, plunger mounting rod; 5234, spring plunger; 5211, horizontal right-angled edge plate; 5212, vertical right-angled edge plate; 52121, pressing piece mounting slot; 52331, second limiting ring; 52332, connecting internal thread; 52341, pressure rod; 52342, ball head structure; 7. Synchronous column pressing device; 71. Front pressure positioning member fixing plate; 72. Retractable pressure column unit; 73. Lower lifting ring plate; 74. Lower lifting power member; 75. Lower wedge-shaped active pressure block; 76. Lower tension spring; 77. Lower vertical rod; 78. Fixed cover seat; 79. Lower vertical sliding assembly; 80. Second horizontal slider; 81. Lower power member mounting plate; 721, dual pressure point mounting plate; 722, second rotating wheel; 723, positioning member pressure head; 741, second power telescopic shaft; 751, lower active extrusion surface; 791, lower vertical slide rail; 792, lower vertical slide block; 811, install the vertical plate at the bottom; 812, install the horizontal plate at the second top; 7211, transverse guide structure; 7212, pressing piece mounting boss; 7231, pin sleeve; 7232, pressure pin; 7233, second compression spring; 7234, connection adjustment screw; 72121, positioning slot; 72122, screw mounting slot. DETAILED DESCRIPTION

[0016] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] The following is combined with Figure 2-21 The method of synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils of the present invention is further described.

[0018] Please focus on Figure 2 、 15-16, 19-21, the present invention discloses a method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils. The method applies a hollow cup motor coil winding device. The hollow cup motor coil winding device includes a central cylinder 11 and n retractable positioning columns 21, n ≥ 3 and n is a natural number; the retractable positioning columns 21 include a hanging state and a detached state for realizing unloading; when the retractable positioning columns 21 are in the hanging state: one end of the retractable positioning column 21 is connected to the central cylinder 11, and the other end of the retractable positioning column 21 protrudes from the outer wall of the central cylinder 11, and n retractable positioning columns 21 are arranged around the central cylinder 11; the retractable positioning column 21 is put into a detached state, the retractable positioning column 21 is completely detached from the central cylinder 11, or the retractable positioning column 21 is completely accommodated in the central cylinder 11. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils includes the following steps performed in sequence: Material preparation steps: take n sheet-shaped diamond coils, wherein: the inner hole of the sheet-shaped diamond coil is diamond-shaped, and the inner hole wall includes diagonal points A and diagonal points B arranged opposite to each other in the left and right directions.

[0019] Coil stacking steps: pull the left and right sides of each sheet-like diamond coil apart, and expand the distance between the diagonal point A and the diagonal point B to H; keep the distance between the diagonal point A and the diagonal point B at H, and when the retractable positioning column 21 is in the hanging state, apply pressure to the sheet-like diamond coil to deform the sheet-like diamond coil and fit the outer wall of the center cylinder 11, and make the diagonal point A and the diagonal point B of the sheet-like diamond coil hang on two different retractable positioning columns 21 respectively; stack all the sheet-like diamond coils on the outer periphery of the center cylinder 11 according to a preset rule and form a preliminary round coil 300 together.

[0020] In this embodiment, the outer wall of the center cylinder 11 is cylindrical, providing a mounting base for the retractable positioning post 21 and supporting the inner wall of the primary coil 300, facilitating the formation of the cylindrical primary coil 300. When the retractable positioning post 21 protrudes from the outer wall of the center cylinder 11, it is used to wrap around the sheet-like diamond-shaped coil. When the retractable positioning post 21 is disengaged, it is completely separated from the primary coil 300 and does not affect the axial unloading of the primary coil 300 along the center cylinder 11.

[0021] The “preset stacking rule” in this embodiment is described below.

[0022] If n≥5, the retractable positioning posts 21 arranged around the central cylinder 11 are sequentially arranged as the first post, the second post, the third post, the fourth post, the fifth post, and so on.

[0023] The preset stacking rule can be set as: hang the two ends of the first sheet-shaped diamond coil on the first and third poles respectively, hang the two ends of the second sheet-shaped diamond coil on the second and fourth poles respectively, hang the two ends of the third sheet-shaped diamond coil on the third and fifth poles respectively, and so on, until the entire circle is completed.

[0024] The preset stacking rule can also be set as: the two ends of the first sheet-shaped diamond coil are hung on the first and fourth poles respectively, the two ends of the second sheet-shaped diamond coil are hung on the second and fifth poles respectively, the two ends of the third sheet-shaped diamond coil are hung on the third and sixth poles respectively, and so on, until the entire circle is completed.

[0025] In this embodiment, the structures of the central cylinder 11 and the telescopic positioning column 21 can be various schemes.

[0026] Solution 1: The sidewall of the central cylinder 11 is provided with n recessed sockets. The retractable positioning post 21 is inserted and fixed in the sockets, thereby placing the retractable positioning post 21 in the hooked state. The retractable positioning post 21 can be pulled out of the sockets, completely disengaging it from the central cylinder 11, to place it in the disengaged state.

[0027] Option 2: The side wall of the central cylinder 11 is provided with n sliding holes 112 running through it, and a retractable positioning column 21 is slidably connected in each sliding hole 112. All retractable positioning columns 21 extend out of the sliding holes 112, so that the retractable positioning columns 21 are in a hanging state; the retractable positioning columns 21 are completely accommodated in the central cylinder 11, so that the retractable positioning columns 21 are in a disengaged state.

[0028] As can be seen from the above, the method of the present invention stacks all the sheet-like diamond coils on the outer periphery of the central cylinder 11 according to a preset stacking pattern. After the deformed sheet-like diamond coils are stacked and hung on the retractable positioning column 21 according to a certain pattern, a complete cylindrical primary rolled coil 300 can be formed without the need for an additional rolling process. Each sheet-like diamond coil is precisely positioned by two retractable positioning columns 21 to ensure the quality of the finished product.

[0029] Compared to existing technologies, this invention offers a completely new method for winding diamond-shaped coils. It creatively replaces the traditional method of stacking sheet coils in a straight line with a novel method of stacking sheet coils in a circular ring. Furthermore, this method can complete both coil stacking and winding in a single station, simplifying the process. This novel method achieves integrated molding of coreless motor coils through a simple process, resulting in high-quality finished products.

[0030] According to a specific embodiment of the present invention, in the material preparation step, the sheet-shaped diamond coil is rolled and pressed into an arc shape as a whole.

[0031] In this embodiment, the flat sheet-shaped diamond coil is pre-pressed into an arc shape, that is, an arc-shaped sheet-shaped diamond coil 100 is formed (eg Figure 15 ), the arc-shaped sheet rhombus coil 100 is in sheet shape as a whole, and when placed vertically, its projection on the horizontal plane is in the shape of an arc (such as Figure 16 ), whose projection on a vertical plane is a diamond shape. Pre-pressing the sheet-shaped diamond coil into an arc shape and concavely positioning it toward the center cylinder 11 helps reduce deformation during the coil stacking step, facilitating smoother compression and deformation of the sheet-shaped diamond coil and stacking it around the outer circumference of the center cylinder 11, resulting in higher winding efficiency and precision.

[0032] According to a specific embodiment of the present invention, the method of synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils also includes a coil shaping step located after the coil stacking step. The coil shaping step includes: when the retractable positioning column 21 is in a disengaged state, repeatedly applying pressure to various locations on the outer wall of the initial rolled circular coil 300 to achieve a fine rounding of the initial rolled circular coil 300 and obtain a fine circular coil.

[0033] In this embodiment, when the initially rolled circular coil 300 is finely rounded, the central cylinder 11 supports the inner side of the initially rolled circular coil 300 and shapes the initially rolled circular coil 300 by repeatedly hammering the outer wall of the initially rolled circular coil 300. This can further improve the deformation stability of the initially rolled circular coil 300, obtain a finer circular coil with higher precision, and achieve the purpose of improving the quality of the finished product.

[0034] According to a specific embodiment of the present invention, the method of synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils also includes a material withdrawing step located after the coil shaping step. The material withdrawing step includes: placing the retractable positioning column 21 in a disengaged state, applying an upward force to the finished circular coil, and moving the finished circular coil upward for a certain distance.

[0035] In this embodiment, after the coil shaping step, a finishing circular coil is obtained that is arranged around the central cylinder 11, and the retractable positioning column 21 is in a disengaged state, thereby ensuring that the retractable positioning column 21 is completely separated from the finishing circular coil, without affecting the axial movement of the finishing circular coil along the central cylinder 11, and utilizing thrust to achieve finished product unloading.

[0036] According to a specific embodiment of the present invention, n retractable positioning posts 21 are evenly arranged around the central cylinder 11; the method for synthesizing a hollow cup motor coil by stacking and winding multiple diamond coils further includes a material positioning step located after the material preparation step and before the coil stacking step, and the material positioning step includes: positioning n sheet-shaped diamond coils at a preset position, and the state of the sheet-shaped diamond coils after positioning is (refer to Figure 17-18): n sheet-like diamond coils are evenly arranged around the outer circumference of the central cylinder 11, and two adjacent sheet-like diamond coils are spaced apart. The side of each sheet-like diamond coil close to the diagonal point A is in contact with the outer side surface of the central cylinder 11, and the side of each sheet-like diamond coil close to the diagonal point B is spaced apart from the outer side surface of the central cylinder 11; n retractable positioning posts 21 are inserted into the inner holes of the n sheet-like diamond coils one by one; the coil stacking step also includes: using a simultaneous operation method to simultaneously pull apart the left and right sides of each sheet-like diamond coil, and when the left and right sides of the sheet-like diamond coil are pulled apart, the retractable positioning post 21 inserted into the inner hole of the sheet-like diamond coil is used to act on the diagonal point A; using a simultaneous operation method to apply pressure to all the sheet-like diamond coils at the same time, and make the diagonal points B of all the sheet-like diamond coils hang on the retractable positioning posts 21 at their respective predetermined positions at the same time.

[0037] In this embodiment, the diamond-shaped sheet coils are pre-arranged in a predetermined position, allowing a retractable positioning post 21 to precisely insert into the inner hole of a diamond-shaped sheet coil. This allows the retractable positioning post 21 to act as a tensioning member to pull the left and right sides of each diamond-shaped sheet coil apart, with the point of action being precisely diagonal point A. Therefore, in practice, only one tensioning member acting at point B is required to pull the left and right sides of the diamond-shaped sheet coil apart. Furthermore, because the diamond-shaped sheet coils are pre-arranged in a predetermined position, conditions are provided for simultaneously pulling apart all the diamond-shaped sheet coils and applying pressure to all of them. This simultaneous application of pressure to all the diamond-shaped sheet coils significantly shortens the time required for the overall coil winding process.

[0038] Please focus on Figure 3-4 According to a specific embodiment of the present invention, the hollow cup motor coil winding equipment includes a coil placement platform module 120 and an upper disk module 570 arranged in a ring on the upper part of the coil placement platform module 120; the central cylinder 11 and the retractable positioning column 21 belong to the coil placement platform module 120, the upper disk module 570 includes a synchronous pressure column device 7 and a synchronous coil pressing device 5, the synchronous pressure column device 7 includes a retractable pressure column unit 72, the synchronous coil pressing device 5 includes a retractable pressure coil unit 52, the retractable pressure column unit 72 is n groups, and the n groups of retractable pressure column units 72 are evenly arranged around the outside of the central cylinder 11; the retractable pressure coil units 52 are n groups, and the n groups of retractable pressure coil units 52 are evenly distributed with the central axis of the central cylinder 11 as the center, and the retractable pressure coil units 52 and the retractable pressure column units 72 are alternately arranged; and the angle between any group of retractable pressure coil units 52 and the two adjacent retractable pressure column units 72 is the same.

[0039] The material positioning step also includes: inserting n retractable pressure column units 72 into the inner holes of n sheet-shaped diamond coils one by one, and a retractable positioning column 21 and a retractable pressure column unit 72 located in the inner hole of the same sheet-shaped diamond coil form a group of pulling units.

[0040] The coil stacking step also includes: rotating the central cylinder 11 so that all the retractable positioning posts 21 rotate in the same direction, thereby simultaneously pulling apart the left and right sides of each sheet-like diamond coil; n retractable pressing coil units 52 correspond one to one to one to one side of the n sheet-like diamond coils close to the diagonal point B, and all the retractable pressing coil units 52 extend at the same time to simultaneously apply pressure to all the sheet-like diamond coils, and to make the diagonal points B of all the sheet-like diamond coils hang on the retractable positioning posts 21 at their respective predetermined positions at the same time.

[0041] The coil shaping step further includes: rotating the central cylinder 11 and repeatedly extending and retracting the retractable coil pressing unit 52 to repeatedly apply pressure to various locations on the outer wall of the initially wound circular coil 300 .

[0042] In this embodiment, the structure of the coreless motor coil winding equipment is further refined. The coreless motor coil winding equipment is centered around a central cylinder 11. The retractable positioning column 21, retractable pressure column unit 72, and retractable coil pressure unit 52 are all retractable and can be positioned around the central cylinder 11. Through precise alignment, telescoping, and lifting coordination, the subassemblies structurally support each other and functionally complement each other, collectively achieving an automated coil winding process.

[0043] Regarding the implementation structure of the coil stacking step: the central cylinder 11, the retractable positioning column 21, the retractable pressure column unit 72, and the retractable pressing coil unit 52 cooperate to achieve coil stacking. After the retractable pressure column unit 72 is extended, it cooperates with the retractable positioning column 21 to act on the diagonal points A and B of the sheet-like diamond coil respectively; the retractable pressure column unit 72 does not move, and the central cylinder 11 is rotated, driving all the retractable positioning columns 21 to rotate around the axis of the central cylinder 11, while pulling the left and right sides of each sheet-like diamond coil apart, and expanding the distance between the diagonal points A and B; in this state, all the retractable pressing coil units 52 are extended at the same time, acting on the side of the sheet-like diamond coil close to point B, and transferring the sheet-like diamond coil in contact with the retractable pressure column unit 72 to the retractable positioning column 21 at the predetermined position, so that the diagonal points B of all the sheet-like diamond coils are simultaneously hung on the retractable positioning columns 21 at their respective predetermined positions.

[0044] Regarding the implementation structure of the coil shaping step: the center cylinder 11, the retractable positioning post 21, and the retractable coil pressing unit 52 cooperate to achieve coil shaping. The retractable positioning post 21 is retracted into the center cylinder 11, and the center cylinder 11 is rotated to drive the initial circular coil 300 to rotate. The center cylinder 11 supports the inner side of the initial circular coil 300, and the retractable coil pressing unit 52 repeatedly expands and contracts to repeatedly apply pressure to various locations on the outer wall of the initial circular coil 300.

[0045] The structural design provided by this embodiment is ingenious, primarily manifested in the following aspects: (1) By utilizing the rotation of a single component, the central cylinder 11, all sheet-shaped diamond coils can be simultaneously pulled apart. The rotation of the central cylinder 11 also rotates the initial coil 300, allowing the retractable coil pressing unit 52 to hammer into various locations on the outside of the initial coil 300, improving the rounding effect. (2) The retractable pressing column unit 72 and the retractable coil pressing unit 52 are spaced apart, ensuring that each sheet-shaped diamond coil has a pulling member (retractable pressing column unit 72) and a pressing member (retractable coil pressing unit 52). This ensures that each sheet-shaped diamond coil is smoothly pulled apart and placed on the predetermined retractable positioning column 21, with the pulling and pushing positions being different, thus preventing interference. In addition to transferring the sheet-shaped diamond coil in contact with the retractable pressing column unit 72 to the predetermined position of the retractable positioning column 21 during the coil stacking step, the retractable coil pressing unit 52 is also used to fine-tune the initial coil 300 during the coil shaping step.

[0046] Please focus on Figure 10 According to a specific embodiment of the present invention, the coil placement platform module 120 further includes a fixed support plate 12 and a movable lifting plate 13 respectively arranged around the central cylinder 11; the fixed support plate 12 includes a fixed plate body 121 and n fixed clamping columns 122 fixed to the upper part of the fixed plate body 121, and the movable lifting plate 13 includes a movable plate body 131 and n movable clamping columns 132 fixed to the upper part of the movable plate body 131; the movable plate body 131 is located below the fixed plate body 121; the n fixed clamping columns 122 are evenly arranged around the central cylinder 11, and the n movable clamping columns 132 are evenly arranged around the central cylinder 11, and the ... The column 132 is arranged on the side of the fixed clamping column 122 close to the central cylinder 11, and a movable clamping column 132 is correspondingly provided on one side of each fixed clamping column 122; the movable lifting plate 13 includes an ascending state and a descending state; when the movable lifting plate 13 is in the ascending state: the movable clamping column 132 passes through the fixed plate body 121, and each movable clamping column 132 and a fixed clamping column 122 located on one side thereof jointly form a coil clamping groove 14; when the movable lifting plate 13 is in the descending state, the top of the movable clamping column 132 is lower than the upper surface of the fixed plate body 121, and a coil winding channel 19 is formed between the fixed clamping column 122 and the central cylinder 11.

[0047] The material positioning step also includes: making the movable lifting plate 13 in an ascending state, using each coil slot 14 to clamp and fix the lower part of a sheet-shaped diamond coil, so as to achieve positioning of n sheet-shaped diamond coils in a preset position; the coil winding step also includes: when the retractable pressure coil unit 52 applies pressure to all the sheet-shaped diamond coils, the movable lifting plate 13 is in a descending state.

[0048] In this embodiment, a structure for realizing the positioning of the sheet-shaped diamond coil is specifically designed, and the functions of each component are described as follows.

[0049] The fixed support plate 12 is a fixed structure having a plurality of fixed clamping posts 122. In a specific implementation, if 13 sheet-shaped diamond coils are required to form a wound coil 300, then n=13, and the number of fixed clamping posts 122 is correspondingly 13. The drawings of the present invention are also described using n=13 as an example.

[0050] The movable lift plate 13 is a liftable structure having a plurality of movable posts 132. The number of movable posts 132 is the same as that of fixed posts 122, and their positions correspond one to one. The movable lift plate 13 can be switched between an ascending state and a descending state by a movable lift power 15. The movable lift power 15 is used to drive the movable lift plate 13 up and down. The movable lift power 15 can be a lifting cylinder, or a power structure composed of a cam and spring combination, or a ramp and spring combination.

[0051] When the movable lifting plate 13 is in an ascending state, that is, the movable clamping column 132 passes through the corresponding hole on the fixed plate body 121, the movable clamping column 132 rises to the side of the fixed clamping column 122, and the fixed plate body 121 has n coil clamping grooves 14 distributed in a preset shape. The shapes of the fixed clamping column 122 and the movable clamping column 132 are set according to the bending curvature of the sheet-like diamond coil to ensure that the coil clamping groove 14 formed by the combination of the two just clamps the sheet-like diamond coil.

[0052] The additional structures (fixed support plate 12 and movable lifting plate 13) of this embodiment serve two purposes: Function 1: They form coil retaining slots 14, enabling the n-piece rhombus coils to be arranged vertically around the central cylinder 11. Function 2: They form coil retraction channels 19, ensuring that the movement of the rhombus coils toward the central cylinder 11 is not affected.

[0053] During specific implementation, by presetting the extension direction of the coil slot 14, after the sheet-shaped diamond coil is inserted into the coil slot 14, it can be ensured that the inner diagonal point A of the sheet-shaped diamond coil is just hung on a retractable positioning column 21. The n sheet-shaped diamond coils are inserted into the n coil slots 14 one by one by manual or mechanical means to position the n sheet-shaped diamond coils at the preset positions; after positioning is completed, the retractable pressure column unit 72 extends and extends into the sheet-shaped diamond coil, and the movable disk lifting power 15 puts the movable lifting disk 13 in a descending state. In this state, due to the descent of the movable clamping column 132, there is no protruding movable clamping column 132 between the fixed clamping column 122 and the central cylinder 11 to obstruct it, forming an unobstructed coil winding channel 19, which is conducive to the smooth implementation of the process of "deforming the sheet-shaped diamond coil and fitting it to the outer wall of the central cylinder 11" in the above embodiment.

[0054] As can be seen from the above, by adopting the solution of this embodiment, the coil slots 14 are distributed in a circular array with the central cylinder 11 as the center, so that multiple sheet-like diamond coils can be positioned at predetermined positions; the coil slots 14 are movable structures and will not affect the inward winding of multiple sheet-like diamond coils into a whole rolled coil 300.

[0055] Please continue to combine Figure 13 According to a specific embodiment of the present invention, the coil winding channel 19 is generally annular, and the bottom surface of the coil winding channel 19 is flat. The movable disk body 131 is generally annular, and the movable lifting disk 13 also includes a stripping ring 133 fixed to the upper inner portion of the movable disk body 131 and arranged around the center cylinder 11. The stripping ring 133 is generally annular and slidably connected to the center cylinder 11. When the movable lifting disk 13 is in a descending state, the top surface of the stripping ring 133 is lower than the upper surface of the fixed disk body 121; when the movable lifting disk 13 is in an ascending state, the top surface of the stripping ring 133 is higher than the upper surface of the fixed disk body 121. The stripping step also includes: the stripping ring 133 applies an upward force to the finished circular coil.

[0056] In this embodiment, the stripping ring 133 is used to directly act on the finishing round coil in the stripping step to achieve the ejection and stripping of the material.

[0057] This embodiment cleverly disposes a material stripping ring 133 on the upper portion of the movable tray body 131. The movable tray body 131, movable clamping column 132, and material stripping ring 133 form an integrated fixed structure. When the movable tray 13 is raised by the movable tray lifting power 15, the material stripping ring 133 rises synchronously to remove the material, eliminating the need for additional lifting power. Specifically, the power for "raising the movable clamping column 132 to form the coil retaining slot 14 with the fixed clamping column 122" and the power for "synchronously raising the material stripping ring 133 to remove the material" are the same. Furthermore, the processes of positioning the sheet-shaped diamond coil within the coil retaining slot 14 and ejecting the finished round coil to remove the material are performed sequentially, without interference. This embodiment has a simple and ingenious structure, uses shared power, and is low in cost.

[0058] Please focus on Figure 11 and Figure 14 According to a specific embodiment of the present invention, the center cylinder 11 is cylindrical as a whole, and n sliding holes 112 are arranged on the side wall of the center cylinder 11, and a retractable positioning column 21 is slidably connected in each sliding hole 112. The end of the retractable positioning column 21 away from the central axis of the center cylinder 11 is the positioning end 2121; the coil placement platform module 120 also includes a center push rod 22 with one end extending into the center cylinder 11, and the center push rod 22 includes a pushing section 222 which is a frustum-shaped push section 222. The pushing section 222 is used to push all the retractable positioning columns 21 out of the sliding hole 112 and make the retractable positioning columns 21 in a hanging state. The hollow cup motor coil winding equipment includes a column-column alignment state. When the hollow cup motor coil winding equipment is in the column-column alignment state, each group of retractable pressure column units 72 is arranged opposite to a retractable positioning column 21. All retractable pressure column units 72 are extended at the same time, and all retractable positioning columns 21 are completely pressed into the central cylinder 11 (that is, a fully accommodated state), so that the retractable positioning columns 21 are in a disengaged state.

[0059] In this embodiment, the center cylinder 11 is used as a stacking support for multiple diamond-shaped coils. The center cylinder 11 is cylindrical, providing a basis for the sheet-like diamond-shaped coils to form a circular array-like stacking shape. The center rod 22 is arranged along the axial direction of the center cylinder 11. The telescopic direction of the retractable positioning column 21 is consistent with the radial direction of the center cylinder 11. When the center rod 22 is extended, the frustum-shaped pushing section 222 pushes all the retractable positioning columns 21 out of the sliding hole 112, so that the retractable positioning columns 21 are in a hanging state, providing conditions for realizing the stacking of multiple sheet-like diamond-shaped coils along a circle. In specific implementation, the length of the retractable positioning column 21 extending from the outer wall of the center cylinder 11 must be ensured to be long enough, specifically to be able to firmly hang the sheet-like diamond coils.

[0060] The present invention is ingeniously designed, primarily as follows: (1) By extending a central stop rod 22, all retractable positioning posts 21 are secured in a hooked state, preventing them from retracting, thereby providing stable support for the hooking of the sheet-like diamond coils. (2) In addition to cooperating with the retractable positioning posts 21 to pull the sheet-like diamond coils apart, the retractable pressure post unit 72 also acts as a force to press the retractable positioning posts 21 into the center cylinder 11, allowing them to retract into the center cylinder 11 for easier unloading.

[0061] Please focus on Figure 4-6 , according to a specific embodiment of the present invention, the synchronous pressure column device 7 also includes: a front pressure positioning member fixing plate 71, a lower lifting ring plate 73 and a lower lifting power member 74; a retractable pressure column unit 72 is installed on the upper part of the front pressure positioning member fixing plate 71, and multiple sets of retractable pressure column units 72 are arranged around the central cylinder 11; the lower lifting ring plate 73 is connected to the front pressure positioning member fixing plate 71 along the vertical sliding connection; the retractable pressure column unit 72 includes: a double pressure point mounting plate 721, a lower driven force member and a positioning member pressure head 723 respectively provided at both ends of the double pressure point mounting plate 721; the double pressure point mounting plate 721 is connected to the lower lifting ring plate 73 along the horizontal sliding connection; the positioning member pressure head 7 23 is toward the central axis of the central cylinder 11, and a lower wedge-shaped active pressure block 75 is provided on the lower side of each lower driven force-bearing member, and the lower wedge-shaped active pressure block 75 is fixed on the lower lifting ring plate 73. The lower side of the lower wedge-shaped active pressure block 75 close to the lower driven force-bearing member is provided with an inclined lower active extrusion surface 751, and the lower active extrusion surface 751 abuts against the lower driven force-bearing member; the lower lifting power member 74 is connected to the lower lifting ring plate 73 and is used to drive the lower lifting ring plate 73 together with all the lower wedge-shaped active pressure blocks 75 to rise together, squeeze the lower driven force-bearing member, and drive all double pressure point mounting plates 721 carrying all positioning member pressure heads 723 to synchronously approach the central cylinder 11.

[0062] In this embodiment, the front pressure positioning member fixing plate 71 is a fixed structure, and the lower lifting ring plate 73 is a liftable structure. The lower lifting power member 74 is used to provide lifting power to drive the lower lifting ring plate 73 to move up and down relative to the front pressure positioning member fixing plate 71. The double pressure point mounting plate 721 is used to mount the lower driven force member and the positioning member pressure head 723. The positioning member pressure head 723 directly acts on the telescopic positioning column 21. During use, the lower lifting power member 74 extends, driving the lower lifting ring plate 73 to rise. Since the lower wedge-shaped active pressure blocks 75 are fixed to the lower lifting ring plate 73, all the lower wedge-shaped active pressure blocks 75 rise together with the lower lifting ring plate 73. Each lower wedge-shaped active pressure block 75 presses a lower driven force member upward. The lower wedge-shaped active pressure blocks 75 cooperate with the lower driven force member to convert the rising movement of the lower lifting ring plate 73 into the movement of the double pressure point mounting plate 721 and the positioning member pressure head 723 to move laterally closer to the telescopic positioning column 21.

[0063] During use, the lower lifting power member 74 drives the lower lifting ring plate 73 and all the lower wedge-shaped active pressure blocks 75 to rise together, squeezing the lower driven force-bearing member, driving all the dual-pressure point mounting plates 721 carrying all the positioning member pressure heads 723 to synchronously extend and approach the center of the central cylinder 11, applying pressure to the outer end surface of the telescopic positioning column 21, and completely pressing the multiple telescopic positioning columns 21 arranged around the central cylinder 11 into the central cylinder 11, completely separating the telescopic positioning columns 21 from the wound coil 300. Then, the lower lifting power member 74 drives the lower lifting ring plate 73 to descend, and the telescopic pressure column unit 72 is retracted; thus, the telescopic pressure column unit 72 is completely separated from the wound coil 300.

[0064] In specific implementation, the retraction of the telescopic pressure column unit 72 can be achieved through various structures. For example, the retraction of the telescopic pressure column unit 72 can be achieved by using the lower tension spring 76. For example, the lower driven force-bearing member is a wedge block 1531 structure that is slidingly connected to the lower wedge-shaped active pressure block 75.

[0065] When the cam 721 is in the closed position, the locking cam 722 is in the closed position, and the locking cam 722 is in the closed position, so that the cam 722 can be locked to the unlocked position, and the locking cam 722 can be locked to the unlocked position, and the locking cam 722 can be locked to the unlocked position, and the locking cam 722 can be locked to the unlocked position,

[0066] In this embodiment, a specific retractable pressure column unit 72 retraction structure is disclosed. Among them: the fixed cover seat 78 is fixed above the front pressure positioning member fixing plate 71 through the lower vertical rod 77, and the fixed cover seat 78 is used to fix one end of the lower tension spring 76. In this embodiment, a specific structure of the lower driven force-bearing member is also disclosed, that is, the driven member is the second runner 722. When in use, the lower active extrusion surface 751 squeezes the cylindrical second runner 722 to rotate, which can flexibly and smoothly convert the pressure of the lower wedge-shaped active pressure block 75 into the centripetal thrust of the double pressure point mounting plate 721. In specific implementation, the bearing can be directly used as the second runner 722, which is low in cost, easy to implement, and has good rotation flexibility.

[0067] According to a specific embodiment of the present invention, the front pressure positioning member fixing plate 71 is in the shape of a circular ring plate as a whole; the lower lifting ring plate 73 is in the shape of a circular ring plate coaxially arranged with the front pressure positioning member fixing plate 71, and the lower lifting ring plate 73 is sleeved on the outside of the front pressure positioning member fixing plate 71, and the lower wedge-shaped active pressure block 75 is fixed to the upper part of the lower lifting ring plate 73.

[0068] In this embodiment, the front pressure positioning member fixing plate 71 is set to a circular ring plate that matches the shape of the telescopic pressure column unit 72, and the lower lifting ring plate 73 is set to a circular ring plate that matches the shape of the front pressure positioning member fixing plate 71. By adopting this structure, the structure of the synchronous pressure column device 7 can be simplified, making the mass and volume smaller. The synchronous pressure column device 7 of the present invention has an overall cylindrical appearance.

[0069] In summary, the method of the present invention preferably includes the following steps (such as Figure 2 ): Material preparation steps: take n sheet-shaped diamond coils, wherein: the inner hole of the sheet-shaped diamond coil is diamond-shaped, and the inner hole wall includes diagonal points A and diagonal points B arranged oppositely in the left and right directions; and roll the sheet-shaped diamond coil into an arc shape as a whole.

[0070] Material positioning steps: put the movable lifting plate 13 in an ascending state, and use each coil slot 14 to clamp and fix the lower part of a sheet-shaped diamond coil to realize positioning of n sheet-shaped diamond coils in a preset position; the state of the sheet-shaped diamond coils after positioning is completed is: n sheet-shaped diamond coils are evenly arranged around the outer circumference of the central cylinder 11, and two adjacent sheet-shaped diamond coils are spaced apart, and the side of each sheet-shaped diamond coil close to the diagonal point A is in contact with the outer side surface of the central cylinder 11, and the side of each sheet-shaped diamond coil close to the diagonal point B is spaced apart from the outer side surface of the central cylinder 11, and the concave surface of the sheet-shaped diamond coil faces the central cylinder 11; n retractable positioning columns 21 and n retractable pressure column units 72 are respectively inserted into the inner holes of the n sheet-shaped diamond coils one by one, and a retractable positioning column 21 and a retractable pressure column unit 72 located in the inner hole of the same sheet-shaped diamond coil form a group of pulling units.

[0071] Coil stacking step: rotate the central cylinder 11 so that all the retractable positioning columns 21 rotate in the same direction, the retractable positioning columns 21 in each group of pulling units act on the diagonal point A, and the retractable pressing column unit 72 in each group of pulling units acts on the diagonal point B, so as to simultaneously pull the left and right sides of each sheet-shaped diamond coil apart and expand the distance between the diagonal point A and the diagonal point B to H; keep the distance between the diagonal point A and the diagonal point B to H, and keep the retractable positioning column 21 in the coil hanging state, n retractable pressing coil units 52 corresponds one by one to the side of n sheet-like diamond coils close to the diagonal point B. When the movable lifting plate 13 is in the descending state, all the retractable pressing coil units 52 are extended at the same time to apply pressure to all the sheet-like diamond coils at the same time, so that the sheet-like diamond coils are deformed and fit into the outer wall of the central cylinder 11, and the diagonal points B of all the sheet-like diamond coils are simultaneously hung on the retractable positioning columns 21 at their respective predetermined positions; all the sheet-like diamond coils are stacked and wound on the outer periphery of the central cylinder 11 according to a preset rule and together form an initial rolled circular coil 300.

[0072] Coil shaping steps: When the retractable positioning column 21 is in the disengaged state, the central cylinder 11 is rotated, and the retractable coil pressing unit 52 is repeatedly extended and retracted to repeatedly apply pressure to various locations on the outer wall of the initially wound circular coil 300, thereby finishing it into a circle and obtaining a finished circular coil.

[0073] Material stripping step: When the retractable positioning column 21 is in the disengaged state: the material stripping ring 133 applies an upward force to the finishing circular coil, moving the finishing circular coil upward for a distance.

[0074] In order to better implement the method of the present invention, the present invention further provides the following preferred embodiments.

[0075] In a further preferred embodiment, the arc radius of the outer wall of the arc-shaped sheet-like diamond coil 100 is R1, and the arc radius of the inner wall is R2; the side of the fixed clamping column 122 close to the center cylinder 11 is an arc surface that matches the curvature of the outer wall of the arc-shaped sheet-like diamond coil 100, and the side of the movable clamping column 132 away from the center cylinder 11 is an arc surface that matches the curvature of the inner wall of the arc-shaped sheet-like diamond coil 100.

[0076] In this embodiment, the two opposing surfaces of the fixed clamping post 122 and the movable clamping post 132 are arcuate surfaces that match the inner and outer surfaces of the arcuate sheet-shaped diamond coil 100. This structure facilitates the clamping and fixing of the arcuate sheet-shaped diamond coil 100. It should be noted that "matching" in this embodiment means that the radius of the arcuate surface is substantially the same as that of the object being matched, that is, the radius of the arcuate surface must be slightly larger or slightly smaller than that of the object being matched. For example, the arc radius of the side of the fixed clamping post 122 close to the center cylinder 11 is R1+0.5 to R1+1mm; or the arc radius of the side of the movable clamping post 132 away from the center cylinder 11 is R2-0.5 to R2-1mm. In specific implementation, the arcuate surface radius should be selected according to the actual thickness of the arcuate sheet-shaped diamond coil 100 to ensure that the arcuate sheet-shaped diamond coil 100 can be flexibly inserted and firmly fixed in the coil clamping slot 14.

[0077] This embodiment specifically discloses the shape of the arc-shaped sheet-shaped diamond coil 100 itself.

[0078] Please focus on Figure 12 , a further preferred embodiment, the coil placement platform module 120 also includes a movable disk lifting power 15 for driving the movable lifting disk 13 to switch between the ascending state and the descending state; the movable disk lifting power 15 includes: a descending drive spring 151, a guide disk 152, and a transverse telescopic power unit 153; the transverse telescopic power unit 153 includes a wedge 1531 and a transverse telescopic drive 1532; the descending drive spring 151 is arranged between the fixed disk body 121 and the movable disk body 131; the guide disk 152 is fixed to the lower part of the fixed disk body 121, and the outer side of the lower part of the guide disk 152 is a driven driving surface 1521, and the driven driving surface 1521 is a conical shape with a small bottom and a large top; the wedge 1531 An active driving surface 15311 is provided on the upper part, which abuts against the driven driving surface 1521. The active driving surface 15311 is an inclined surface matching the driven driving surface 1521; the transverse telescopic drive 1532 is installed laterally on one side of the guide plate 152, and the transverse telescopic drive 1532 is connected to the wedge block 1531, which is used to drive the wedge block 1531 to extend and retract; a rolling body 154 is embedded in the driven driving surface 1521, which is rollingly connected to the wedge block 1531, and the active driving surface 1531 abuts against the driven driving surface 1521 through the rolling body 154; the number of transverse telescopic power units 153 is m sets, m is 2 or 3, and the m sets of transverse telescopic power units 153 are evenly distributed on the outside of the guide plate 152.

[0079] This embodiment provides a specific structure for the movable plate lifting power unit 15. A wedge-shaped force transmission structure is formed between the guide plate 152 and the wedge block 1531. This structure converts the horizontal extension force of the lateral telescopic power unit 153 into vertical upward force for the guide plate 152. This force is then applied to the guide plate 152, causing the movable plate 13 to ascend. As the guide plate 152 ascends, it compresses the descending drive spring 151, causing it to accumulate elastic force. When the lateral telescopic power unit 153 retracts, the elastic force of the descending drive spring 151 causes the guide plate 152 to descend, carrying the movable plate 13 with it, placing the movable plate 13 in a descending position. The lateral telescopic power unit 153 is located on the side of the guide plate 152, driving it upward from the side, while the descending drive spring 151 lowers it. Through a rational layout, this embodiment ensures that the power driving the guide plate 152's elevation does not occupy the center below the guide plate 152, thus preserving space for mounting the telescopic drive 23 there. The addition of rolling elements 154 improves the smoothness of the push. Using multiple, evenly distributed, transversely retractable power units 153 ensures a smooth and uniform force distribution, further ensuring reliable and smooth operation. In practice, a bull's-eye bearing can be embedded within the wedge 1531, with its protruding rolling ball serving as the rolling element 154. Bull's-eye bearings can be purchased directly, making them readily available and inexpensive.

[0080] In a further preferred embodiment, the n sliding holes 112 are located at the same height of the central cylinder 11 and are evenly distributed around the central axis of the central cylinder 11. In this embodiment, this structure is used to ensure that all arc-shaped sheet-shaped diamond coils 100 are evenly stacked at the same height, thereby improving the accuracy of the wound coils 300.

[0081] In a further preferred embodiment, the center support rod 22 also includes a sliding section 223 fixed to the lower part of the pushing section 222 and a connecting section 224 fixed to the lower part of the sliding section 223; the pushing section 222 and the sliding section 223 are both located in the center cylinder 11, the connecting section 224 is located below the center cylinder 11, and the pushing section 222 as a whole is a frustum with a small top and a large bottom; the sliding section 223 is cylindrical, and the sliding section 223 is slidably connected to the inner wall of the center cylinder 11; the coil placement platform module 120 also includes a telescopic drive 23 connected to the connecting section 224 and used to drive the center support rod 22 to slide axially along the center cylinder 11; the end of the retractable positioning column 21 away from the positioning end 2121 is the abutment end 2111; when the coil placement platform module 120 is in the positioning state (the retractable positioning column 21 corresponds to the hanging state), the upper part of the sliding section 223 abuts against the abutment end 2111.

[0082] In this embodiment, the telescopic drive 23 is connected to the center rod 22 via the connecting section 224, which is used to provide lifting power for the center rod 22; when the center rod 22 rises, the outer peripheral surface of the pushing section 222 acts on the abutting end 2111 from bottom to top, pushing the telescopic positioning column 21 to extend outward, and the center rod 22 continues to rise until the sliding section 223 replaces the pushing section 222 and abuts the abutting end 2111, the center rod 22 stops rising, and this state is the positioning state. In this state, the outer surface of the cylindrical sliding section 223 abuts against the abutting end 2111. Even if external force is applied to the telescopic positioning column 21, the telescopic positioning column 21 will not move. The telescopic positioning column 21 corresponds to the hanging state, further ensuring the smooth implementation of the rolling process.

[0083] According to a further preferred embodiment, the retractable positioning column 21 includes a connected positioning main section 211 and a column head section 212; the positioning main section 211 is cylindrical as a whole, the column head section 212 is cylindrical as a whole, the positioning main section 211 and the column head section 212 are coaxially arranged, and the diameter of the column head section 212 is larger than the diameter of the positioning main section 211; the column head section 212 is located in the central cylinder 11, and the positioning main section 211 is slidingly connected to the sliding hole 112; the side of the column head section 212 away from the positioning main section 211 is the positioning end 2121; the side of the positioning main section 211 away from the column head section 212 is the abutment end 2111; the positioning end 2121 and the outer side surface of the column head section 212 are transitionally connected by a circular arc surface 2122.

[0084] In this embodiment, the retractable positioning post 21 is shaped like a threadless bolt, and the head section 212 has a larger diameter to prevent it from falling off. The main positioning section 211 and the head section 212 are connected by a circular arc surface 2122. This smooth transition structure facilitates contact with the guide surface 281 and compresses the guide surface 281 to move upward.

[0085] In a further preferred embodiment, the center rod 22 also includes a spring section 221 fixed to the top of the pushing section 222, and a raised support step ring 2211 is provided at the lower part of the spring section 221; the coil placement platform module 120 also includes a column head unit, which includes: a pressing piece 38, a compression spring 39 and a spring pressure ring 28; the pressing piece 38 is fixed to the top of the spring section 221; the spring pressure ring 28 is in the shape of a circular cover with an opening downward, and the upper part of the spring pressure ring 28 is movably sleeved on the support step ring 2211, and the inner side of the spring pressure ring 28 and the outer side of the spring section 221 are surrounded by a A column head clamping gap 27 is formed, and the outer bottom of the spring pressure ring 28 has an inclined guide surface 281; the compression spring 39 is arranged outside the spring section 221, and the two ends of the compression spring 39 are respectively in contact with the pressing piece 38 and the spring pressure ring 28; the coil placement platform module 120 also includes a transition state. When the coil placement platform module 120 is in the transition state, the compression spring 39 is in a compressed state under the extrusion action of the column head section 212; when the coil placement platform module 120 is in the material withdrawal state, the compression spring 39 is in a relaxed state, and the column head section 212 is clamped in the column head clamping gap 27.

[0086] In this embodiment, the spring section 221 is used to install the column head unit, and the two ends of the pressing piece 38 and the spring pressure ring 28 respectively abut the compression spring 39. The pressing piece 38 is a fixed structure, and the spring pressure ring 28 is a movable structure. Squeezing the spring pressure ring 28 can compress the compression spring 39.

[0087] When the coil placement platform module 120 is in the positioning state, the telescopic drive 23 drives the center rod 22 and the column head unit downward as a whole, so that the column head section 212 squeezes the guide surface 281, and the spring pressure ring 28 compresses the compression spring 39 upward. The compression spring 39 accumulates elastic force, so that the coil placement platform module 120 is in a transition state.

[0088] When the coil placement platform module 120 is in a transition state, under the action of an external device, the positioning end 2121 is squeezed axially along the retractable positioning column 21 until the column head section 212 moves to below the column head clamping gap 27, and under the action of the elastic force of the compression spring 39, the spring pressure ring 28 is pushed down, and the column head section 212 is clamped in the column head clamping gap 27 to realize the anti-retraction function, and the coil placement platform module 120 switches to the material withdrawal state (the retractable positioning column 21 is correspondingly in a disengaged state).

[0089] In this embodiment, a column head clamping unit is added to ensure that when the coil placement platform module 120 is in the material unloading state, the column head section 212 can be clamped in the column head clamping gap 27 to prevent the retractable positioning column 21 from moving, ensuring that during operation, even if there is an external force impact, the retractable positioning column 21 can be firmly fixed and will not extend out of the sliding hole 112, thereby ensuring the smooth unloading of the wound coil 300.

[0090] A further preferred embodiment is that the synchronous pressing coil device 5 also includes: a front pressing coil fixing plate 51, an upper lifting ring plate 53 and an upper lifting power piece 54; the retractable pressing coil unit 52 is installed at the lower part of the front pressing coil fixing plate 51, and the upper lifting ring plate 53 is connected to the front pressing coil fixing plate 51 along the vertical sliding direction; the retractable pressing coil unit 52 includes: a three-pressure point mounting plate 521, an upper driven force-bearing member and a coil pressure head 523 respectively arranged at both ends of the three-pressure point mounting plate 521; the three-pressure point mounting plate 521 is connected to the upper lifting ring plate 53 along the horizontal sliding direction; the coil pressure head 523 faces the central axis of the central cylinder 11, and an upper wedge-shaped active pressure block 55 is provided on one side of the upper part of each upper driven force-bearing member, and the upper wedge-shaped active pressure block 55 is fixed on the upper lifting ring plate 53. An inclined upper active extrusion surface 551 is provided on one side of the lower part close to the upper driven force-bearing member, and the upper active extrusion surface 551 abuts against the upper driven force-bearing member; the upper lifting power member 54 is connected to the upper lifting ring plate 53 and is used to drive the upper lifting ring plate 53 together with all the upper wedge-shaped active pressure blocks 55 to descend together, squeeze the upper driven force-bearing member, and drive all three-pressure point mounting plates 521 carrying all the coil pressure heads 523 to synchronously approach the central cylinder 11; the front pressure coil fixing plate 51 is an overall circular plate shape, and the middle upper part of the front pressure coil fixing plate 51 is a feeding port 511; the upper lifting ring plate 53 is an overall circular plate shape coaxially arranged with the front pressure coil fixing plate 51, and the upper lifting ring plate 53 is sleeved on the outside of the front pressure coil fixing plate 51, and the upper wedge-shaped active pressure block 55 is fixed to the lower part of the upper lifting ring plate 53.

[0091] It should be noted that the structure and function of the synchronous coil pressing device 5 are similar to those of the synchronous column pressing device 7 , and their working principles can be referenced to each other.

[0092] The front pressure coil fixing plate 51 is a fixed structure, and the upper lifting ring plate 53 is a liftable structure. The upper lifting power member 54 is used to provide lifting power to drive the upper lifting ring plate 53 to move up and down relative to the front pressure coil fixing plate 51. The three-pressure point mounting plate 521 is used to install the upper driven force member and the coil pressure head 523. The coil pressure head 523 directly acts on the arc-shaped sheet-shaped diamond coil 100. When in use, the upper lifting power member 54 extends to drive the upper lifting ring plate 53 to descend. Since the upper wedge-shaped active pressure block 55 is fixed on the upper lifting ring plate 53, all the upper wedge-shaped active pressure blocks 55 descend together with the upper lifting ring plate 53. Each upper wedge-shaped active pressure block 55 presses an upper driven force member downward. The upper wedge-shaped active pressure block 55 cooperates with the upper driven force member to convert the descending action of the upper lifting ring plate 53 into the action of the three-pressure point mounting plate 521 and the coil pressure head 523 approaching the arc-shaped sheet-shaped diamond coil 100 in the horizontal direction.

[0093] In practice, the retraction of the retractable pressure coil unit 52 and the retractable pressure column unit 72 can be achieved through various structures. For example, the retractable pressure coil unit 52 can be retracted using an upper tension spring 56 (described below). Another example is the upper driven force member being a wedge-shaped passive pressure block (not shown) slidably connected to the upper wedge-shaped active pressure block 55. A similar structure can be employed for the retractable pressure column unit 72.

[0094] The upper disk module 570 in the present invention can press multiple arc-shaped sheet-shaped diamond coils 100 arranged around the same central cylinder 11 toward the central cylinder 11, so that the arc-shaped sheet-shaped diamond coils 100 are arranged tightly against the central cylinder 11, and the upper lifting power part 54 is repeatedly lifted and lowered, so that pressure can be repeatedly applied to the outer surface of the arc-shaped sheet-shaped diamond coil 100.

[0095] In this embodiment, the front pressure coil fixing plate 51 is provided with a feed port 511 to facilitate the placement of the arc-shaped sheet-shaped diamond coil 100. The front pressure coil fixing plate 51 is set to a circular plate shape that matches the distribution shape of the retractable pressure coil unit 52, and the upper lifting ring plate 53 is set to a circular plate shape that matches the shape of the front pressure coil fixing plate 51, and the retractable pressure coil unit 52 surrounds the central axis of the central cylinder 11. With this structure, the structure of the upper disk module 570 can be simplified, making the mass and volume smaller. The hollow cup motor coil winding device in the present invention has a cylindrical shape as a whole.

[0096] In summary, the upper disk module 570 of the present invention is composed of a synchronous coil pressing device 5 and a synchronous column pressing device 7, which are coaxially arranged vertically. The retractable column pressing unit 72 and the retractable coil pressing unit 52 are staggered, forming an integrated structure that can simultaneously press the coil and the retractable positioning column 21. The structure is compact and reasonable, fully utilizes space, and occupies little space. The hollow cup motor coil winding equipment of the present invention provides specific structural support for the implementation of a new winding solution.

[0097] Please focus on Figure 7, a further preferred embodiment, a pressure piece mounting boss 7212 is provided on the top of the side of the double pressure point mounting plate 721 close to the center cylinder 11, a recessed positioning groove 72121 is provided on the side of the pressure piece mounting boss 7212 close to the center cylinder 11, and a screw mounting groove 72122 is provided on the side of the pressure piece mounting boss 7212 away from the center cylinder 11, which is connected to the positioning groove 72121; the positioning piece pressure head 723 includes: a pin sleeve 7231, a pressure pin 7232, a second compression spring 7233 and a connecting adjustment screw 7234; one end of the pin sleeve 7231 is inserted into the positioning groove 7212 1 and is positioned by the positioning groove 72121, the connecting adjusting screw 7234 passes through the screw mounting groove 72122 and extends into the pin sleeve 7231 and is threadedly connected to the pin sleeve 7231; one end of the pressure pin 7232 is located in the pin sleeve 7231, and the pressure pin 7232 is slidingly connected to the pin sleeve 7231, and the other end of the pressure pin 7232 extends out of the pin sleeve 7231 and faces the center cylinder 11; the second compression spring 7233 is located in the pin sleeve 7231, and the two ends of the second compression spring 7233 are respectively in contact with the pressure pin 7232 and the connecting adjusting screw 7234.

[0098] This embodiment specifically discloses the installation structure of the positioning member pressure head 723, and the positioning groove 72121 is used to position the pin sleeve 7231. This embodiment also specifically discloses the structure of the positioning member pressure head 723 itself. When the pressure pin 7232 applies pressure to the telescopic positioning column 21, it first compresses the second compression spring 7233 to absorb the impact energy and prevent damage to the pressure pin 7232 and the telescopic positioning column 21 due to rigid collision.

[0099] In a further preferred embodiment, the pressure pin 7232 is shaped like a stepped shaft, with smaller ends and a larger center. The end of the pressure pin 7232, which is closer to the second compression spring 7233, is inserted into one side of the interior of the second compression spring 7233 to position the second compression spring 7233. The end of the pressure pin 7232, which is farther from the second compression spring 7233, extends out of the pin sleeve 7231. The pin sleeve 7231 has a closed structure, which cooperates with the stepped structure on the pressure pin 7232 to prevent the pressure pin 7232 from completely falling out of the pin sleeve 7231.

[0100] Please focus on Figure 8, a further preferred solution, the upper disk module 570 also includes an upper tension spring 56 and an upper vertical rod 57, the fixed cover seat 78 is located below the front pressure coil fixing plate 51, and the two ends of the upper vertical rod 57 are respectively fixedly connected to the front pressure coil fixing plate 51 and the fixed cover seat 78; the two ends of the upper tension spring 56 are respectively connected to the fixed cover seat 78 and the three-pressure point mounting plate 521; when all the three-pressure point mounting plates 521 are synchronously approaching the central axis of the central cylinder 11, all the upper tension springs 56 are stretched and accumulate elastic force, and the upper lifting power member 54 drives the upper lifting ring When the plate 53 rises together with all the upper wedge-shaped active pressure blocks 55, under the action of elastic force, all three-pressure point mounting plates 521 carrying all coil pressure heads 523 are driven to synchronously move away from the central axis of the central cylinder 11; the upper driven force-bearing member is the first rotating wheel 522 rotatably connected to the three-pressure point mounting plate 521; the outer side surface of the first rotating wheel 522 abuts against the upper active extrusion surface 551; the lower tension spring 76 is located above the fixed cover seat 78, and the upper tension spring 56 is located below the fixed cover seat 78; the vertical rod 77 and the upper vertical rod 57 are staggered in the vertical direction.

[0101] In this embodiment, the fixed cover seat 78 also provides an installation foundation for the fixed connection of one end of the upper tension spring 56. The lower tension spring 76 and the upper tension spring 56 are respectively located at the upper and lower parts of the fixed cover seat 78, so that the synchronous pressing coil device 5 and the synchronous pressing column device 7 have a nested overlapping section in the structure. The front pressing coil fixing plate 51, the upper vertical rod 57, the fixed cover seat 78, the lower vertical rod 77 and the front pressing positioning member fixing plate 71 are fixedly connected from top to bottom to form an integrated fixed structure, providing a stable foundation for the installation and smooth operation of the retractable pressing coil unit 52 and the retractable pressing column unit 72. The staggered arrangement of the lower vertical rod 77 and the upper vertical rod 57 facilitates the staggered installation of the retractable pressing coil unit 52 and the retractable pressing column unit 72, so that the retractable pressing coil unit 52 and the retractable pressing column unit 72 can ultimately act on the same workstation to achieve the coil rolling and provide conditions for the material to be withdrawn after rolling.

[0102] This embodiment also discloses a specific retractable pressure coil unit 52 retraction structure. The retractable pressure coil unit 52 retractable structure is similar to the retractable pressure column unit 72, and can be achieved by the upper tension spring 56. This embodiment also discloses a specific structure of the upper driven force-bearing member, that is, the driven member is the first runner 522. When in use, the upper active extrusion surface 551 squeezes the cylindrical first runner 522 to rotate, which can flexibly and smoothly convert the pressure of the upper wedge-shaped active pressure block 55 into the centripetal thrust of the three-pressure point mounting plate 521. In specific implementation, the bearing can be directly used as the first runner 522, which is low-cost, easy to implement, and has good rotation flexibility.

[0103] Further preferred solution: the upper disk module 570 also includes an upper power component mounting plate 63, the upper power component mounting plate 63 includes: an upper mounting vertical plate 631, a first upper mounting horizontal plate 632 and a first lower mounting horizontal plate 633 respectively fixed to the upper and lower parts of the upper mounting vertical plate 631, the first upper mounting horizontal plate 632 and the first lower mounting horizontal plate 633 are respectively located on both sides of the upper mounting vertical plate 631, the first lower mounting horizontal plate 633 is fixedly installed on the upper part of the front pressure coil fixing plate 51, the upper lifting power component 54 is installed on the first lower mounting horizontal plate 633, the upper lifting power component 54 includes a first power telescopic shaft 541, and the protruding end of the first power telescopic shaft 541 is connected to the upper lifting ring plate 53.

[0104] Because the upper lift power member 54's fixed mounting member (the front pressure coil fixing plate 51) and the active member (the upper lift ring plate 53) are arranged horizontally, the upper lift power member 54 cannot be directly installed. In this embodiment, the upper power member mounting plate 63 has an overall stepped structure, which allows the upper lift power member 54 to be mounted on the front pressure coil fixing plate 51 and connects the first power telescopic shaft 541 to the upper lift ring plate 53.

[0105] In a further preferred embodiment, the upper plate module 570 further includes an upper vertical sliding assembly 59, and the upper lifting ring plate 53 is slidably connected to the front pressure coil fixing plate 51 via the upper vertical sliding assembly 59, wherein: the upper vertical sliding assembly 59 includes: an upper vertical slide rail 591, an upper vertical slider 592 slidably connected to the upper vertical slide rail 591, the upper vertical slide rail 591 is fixed to the upper lifting ring plate 53, and the upper vertical slider 592 is fixed to the front pressure coil fixing plate 51; the upper plate module 570 further includes a horizontal sliding assembly 60, a three-pressure point mounting plate 521 is slidably connected to the front pressure coil fixing plate 51 via a transverse sliding assembly 60. The transverse sliding assembly 60 comprises a transverse slide rail 601 and a first transverse slider 602 slidably connected to the transverse slide rail 601. The transverse slide rail 601 is fixed to the three-pressure point mounting plate 521, and the first transverse slider 602 is fixed to the front pressure coil fixing plate 51. The upper vertical sliding assembly 59 comprises two sets, and the two sets of upper vertical sliding assemblies 59 and an upper power member mounting plate 63 are evenly distributed around the central axis of the central cylinder 11. In a further preferred embodiment, the upper lifting power member 54 is an electric push rod.

[0106] In this embodiment, the upper vertical sliding assembly 59 is used to achieve the sliding connection between the upper lifting ring plate 53 and the front pressure coil fixing plate 51, and the horizontal sliding assembly 60 is used to achieve the sliding connection between the front pressure coil fixing plate 51 and the three-pressure point mounting plate 521. This ensures the smoothness and stability of the sliding connection of the components.

[0107] A further preferred solution is that the upper plate module 570 also includes a transverse sliding component 60, and the three-pressure point mounting plate 521 is slidingly connected to the front pressure coil fixing plate 51 through the transverse sliding component 60, wherein: the transverse sliding component 60 includes: a transverse slide rail 601, a first transverse slider 602 slidingly connected to the transverse slide rail 601, the transverse slide rail 601 is fixed to the three-pressure point mounting plate 521, and the first transverse slider 602 is fixed to the front pressure coil fixing plate 51.

[0108] In this embodiment, two sets of upper vertical sliding components 59 are provided to further improve the smoothness of sliding. The position of the upper power component mounting plate 63 determines the position of the upper lifting power component 54, that is, the upper lifting power component 54 and the two sets of upper vertical sliding components 59 are evenly distributed, which can further improve the balance and stability of the force.

[0109] A further preferred embodiment is that the three-pressure-point mounting plate 521 is in the shape of a right-angled plate composed of a horizontal right-angled side plate 5211 and a vertical right-angled side plate 5212; the horizontal slide rail 601 is fixed to the upper part of the horizontal right-angled side plate 5211; the pressure piece mounting groove 52121 is arranged on one side of the vertical right-angled side plate 5212 close to the central axis of the central cylinder 11, and each vertical right-angled side plate 5212 is provided with two pressure piece mounting grooves 52121 arranged up and down, and each set of retractable pressure coil units 52 includes two sets of coil pressure heads 523 installed in the two pressure piece mounting grooves 52121 in a one-to-one manner; each vertical right-angled side plate 5212 is also provided with a tension spring connecting adjustment screw 61, the tension spring connecting adjustment screw 61 is located between the two pressure piece mounting grooves 52121, and one end of the upper tension spring 56 is connected to the tension spring connecting adjustment screw 61; the positioning piece pressure head 723 is located between the two sets of coil pressure heads 523.

[0110] In this embodiment, two sets of coil pressing heads 523 and a first rotating wheel 522 are integrated on the three-pressure-point mounting plate 521. The two sets of coil pressing heads 523 are respectively used to press the upper and lower portions of the arc-shaped diamond coil 100, thereby expanding the range of action on the arc-shaped diamond coil 100 and improving the uniformity of deformation of the arc-shaped diamond coil 100. The first rotating wheel 522 is used to press the upper wedge-shaped active pressing block 55. In other words, three pressure points are formed on the three-pressure-point mounting plate 521.

[0111] It should be noted that although the retractable pressure coil unit 52 and the retractable pressure column unit 72 are respectively installed on the upper and lower front pressure coil fixing plate 51 and the front pressure positioning member fixing plate 71; however, relying on the structural design of the right-angle plate-shaped three-pressure point mounting plate 521, it is possible to ensure that the installation position of the retractable pressure coil unit 52 is relatively low, and relying on the structural design of the pressure member mounting boss 7212 located at the top of the double-pressure point mounting plate 721, it is possible to ensure that the installation position of the retractable pressure column unit 72 is relatively high; ultimately, the retractable pressure coil unit 52 and the retractable pressure column unit 72 can be designed to be vertically staggered to avoid interference; and can work together on the arc-shaped sheet-shaped diamond coil 100 located on the same workstation (coil placement platform module 120).

[0112] The tension spring connection adjustment screw 61 has two functions: first, it connects to the upper tension spring 56. Second, by rotating the tension spring connection adjustment screw 61, the extension length of the tension spring connection adjustment screw 61 can be adjusted to adjust the tightness of the upper tension spring 56. The tension spring connection adjustment screw 61 is located between the two pressure piece mounting slots 52121, which can improve the stability of the upper tension spring 56's force application.

[0113] A further preferred solution: the synchronous pressure column device 7 also includes a lower vertical sliding assembly 79, and the lower lifting ring plate 73 is slidably connected to the front pressure positioning member fixing plate 71 via the lower vertical sliding assembly 79, wherein: the lower vertical sliding assembly 79 includes: a lower vertical slide rail 791, a lower vertical slider 792 slidably connected to the lower vertical slide rail 791, the lower vertical slider 792 is fixed to the lower lifting ring plate 73, and the lower vertical slide rail 791 is fixed to the front pressure positioning member fixing plate 71; the synchronous pressure column device 7 also includes a second horizontal slider 80 fixed to the upper part of the front pressure positioning member fixing plate 71, the lower part of the double pressure point mounting plate 721 extends into the second horizontal slider 80, and the lower part of the double pressure point mounting plate 721 is provided with a horizontal guide structure 7211 which cooperates with the second horizontal slider 80 to form a sliding structure, wherein the horizontal guide structure 7211 is a recessed guide groove or a raised horizontal guide bar.

[0114] In this embodiment, the lower vertical sliding assembly 79 is used to realize the sliding connection between the lower lifting ring plate 73 and the front pressure positioning member fixing plate 71, and the second horizontal slider 80 and the horizontal guide structure 7211 are used to realize the sliding connection between the front pressure positioning member fixing plate 71 and the double pressure point mounting plate 721, thereby ensuring the smoothness and stability of the sliding connection of the components.

[0115] Further preferred solution: the synchronous pressure column device 7 also includes a lower power component mounting plate 81, and the lower power component mounting plate 81 includes: a lower mounting vertical plate 811, a second upper mounting horizontal plate 812 and a second lower mounting horizontal plate (not shown in the figure) respectively fixed to the upper and lower parts of the lower mounting vertical plate 811, the second upper mounting horizontal plate 812 and the second lower mounting horizontal plate are respectively located on both sides of the lower mounting vertical plate 811, the second upper mounting horizontal plate 812 is fixedly installed on the lower part of the front pressure positioning component fixing plate 71, and the lower lifting power component 74 is installed on the second lower mounting horizontal plate, and the lower lifting power component 74 includes a second power telescopic shaft 741, and the protruding end of the second power telescopic shaft 741 is connected to the lower lifting ring plate 73.

[0116] Because the lower lift power member 74's fixed mounting member (the front pressure positioning member fixing plate 71) and the active member (the lower lift ring plate 73) are arranged horizontally, the lower lift power member 74 cannot be directly installed. In this embodiment, the lower power member mounting plate 81 has an overall stepped structure, which allows the lower lift power member 74 to be mounted on the front pressure positioning member fixing plate 71 and connects the second power telescopic shaft 741 to the lower lift ring plate 73.

[0117] Please continue to combine Figure 8-9 , a further preferred solution: a concave pressure piece mounting groove 52121 is provided on one side of the three-pressure-point mounting plate 521 close to the central axis of the rotatable central cylinder 11; the coil pressure head 523 includes: a spring sleeve 5231, a first compression spring 5232 and a pressure head plunger, one end of the spring sleeve 5231 extends into and is fixed in the pressure piece mounting groove 52121, the spring sleeve 5231 is a hollow cylinder as a whole, and an elastic pressure piece mounting hole is provided inside the spring sleeve 5231; one end of the pressure head plunger is located in the elastic pressure piece mounting hole and is slidably connected to the spring sleeve 5231, and the other end of the pressure head plunger faces the central axis of the rotatable central cylinder 11; the first compression spring 5232 is provided in the elastic pressure piece mounting hole, and the two ends of the first compression spring 5232 respectively abut against the bottom of the pressure piece mounting groove 52121 and the pressure head plunger.

[0118] This embodiment specifically discloses the installation structure of the coil pressing head 523. The spring sleeve 5231 is secured by the pressing member mounting groove 52121, ensuring the secure installation of the spring sleeve 5231. This embodiment also specifically discloses the structure of the coil pressing head 523 itself. When the pressing head plunger applies pressure to the arcuate sheet-shaped diamond coil 100, it first compresses the first compression spring 5232 to absorb the impact energy, preventing damage to the pressing head plunger and the arcuate sheet-shaped diamond coil 100 due to rigid collision, thereby achieving flexible processing.

[0119] In a further preferred embodiment, the coil pressing head 523 further includes a set screw 62 that penetrates the vertical right-angled side plate 5212 and acts on the spring sleeve 5231. The set screw 62 is used to secure the spring sleeve 5231 within the pressing member mounting groove 52121. In this embodiment, the structure of locking and securing the spring sleeve 5231 with the set screw 62 is convenient and quick.

[0120] A further preferred solution: the pressure head plunger includes a plunger mounting rod 5233 and a spring plunger 5234, one end of the plunger mounting rod 5233 is provided with a raised second limiting ring 52331, the other end of the plunger mounting rod 5233 is provided with a connecting internal thread 52332, one end of the spring plunger 5234 is fixedly connected to the plunger mounting rod 5233 through the connecting internal thread 52332, one end of the spring plunger 5234 is provided with a raised pressure rod 52341, and the end of the pressure rod 52341 close to the central axis of the rotatable central cylinder 11 is a ball head structure 52342; the elastic pressure piece mounting hole includes a first mounting hole and a second mounting hole that are connected, the first compression spring 5232 and the second limiting ring 52331 are both arranged in the first mounting hole, and the connection between the first mounting hole and the second mounting hole forms a limiting step for preventing the second limiting ring 52331 from falling out of the elastic pressure piece mounting hole.

[0121] In this embodiment, the pressure head plunger comprises a plunger mounting rod 5233 and a spring plunger 5234, which are threadedly connected. This can expand the scope of application of the present invention. Specifically, during implementation, spring plungers 5234 of various sizes can be provided according to the different sizes of the arc-shaped, sheet-like, diamond-shaped coils. During use, the spring plunger 5234 of appropriate size can be selected and connected to the plunger mounting rod 5233 as needed.

[0122] A further preferred solution: the coil placement platform module 120 also includes a support frame 16, the support frame 16 includes a support chassis 161 and a plurality of support vertical frames 162 fixed to the outer side of the upper part of the support chassis 161; the top of each support vertical frame 162 is fixedly connected to the lower part of the fixed disk body 121; the upper part of the support chassis 161 is provided with a recessed center column insertion groove 1611, the lower section of the center cylinder 11 passes through the guide plate 152 and is slidably connected to the guide plate 152, and the bottom of the center cylinder 11 is inserted into the center column insertion groove 1611; the horizontal telescopic drive 1532 is arranged at a position directly opposite to the position between two adjacent support vertical frames 162.

[0123] In this embodiment, the support frame 162 provides a stable fixed support for the fixed plate body 121. The bottom of the central cylinder 11 is inserted into the groove, which facilitates the vertical positioning of the central cylinder 11. The horizontal telescopic drive 1532 and the support frame 162 are staggered to avoid interference.

[0124] A further preferred solution is as follows: a concave clamping ring groove 111 is provided on the outer side of the bottom of the central cylinder 11, the supporting chassis 161 is in the shape of a circular disk as a whole, and a locking member mounting hole 1612 is provided on the supporting chassis 161 that is connected to the outer side and the inner side of the supporting chassis 161, and the locking member mounting hole 1612 is also connected to the clamping ring groove 111; the coil placement platform module 120 also includes a locking screw 17, one end of the locking screw 17 is fixed in the locking member mounting hole 1612, and the other end of the locking screw 17 is fixed to the clamping ring groove 111. 11 abuts against the bottom of the groove; a raised first limit ring 1522 is further provided on the outer side of the guide plate 152, and the lower part of the first limit ring 1522 is a descending limit plane 15221; the coil placement platform module 120 also includes an adjusting screw 18, the lower part of the adjusting screw 18 is threadedly connected to the support chassis 161, and the upper part of the adjusting screw 18 is arranged opposite to the descending limit plane 15221; the top surface of the movable clamping column 132 is a plane, and the top surface of the material removal ring 133 and the top surface of the movable clamping column 132 are located in the same horizontal plane.

[0125] In this embodiment, locking screw 17 is inserted through locking member mounting hole 1612 to lock and secure support base 161 and center cylinder 11, ensuring that the lower portion of center cylinder 11 is secured within center column insertion slot 1611. Adjusting the position between the top of adjusting screw 18 and descent limit plane 15221 controls the descent travel of guide plate 152 under the force of descent drive spring 151, achieving precise control of the descent travel.

[0126] In this embodiment, the top surfaces of the movable clamping column 132 and the stripping ring 133 are located in the same horizontal plane, meaning they are at the same height. With this structure, the movable clamping column 132 and the stripping ring 133 can be simultaneously lowered below the upper surface of the fixed disk body 121, forming a smooth coil winding channel 19. The movable clamping column 132 and the stripping ring 133 can then be simultaneously raised to form the coil retaining groove 14 or used for stripping, eliminating any wasted travel. This structure minimizes the lifting stroke while still meeting the desired functionality, thus reducing the overall size of the device.

[0127] A further preferred embodiment: The coil placement platform module 120 further includes a rotation unit connected to the support chassis 161 and configured to drive the support chassis 161 to rotate. The rotation unit includes a rotation drive 40, a driving gear 41, and a driven gear 42. The driven gear 42 is a cylindrical gear coaxially arranged with the support chassis 161 and fixed to the lower portion or outer portion of the support chassis 161. The driving gear 41 meshes with the driven gear 42. The rotation drive 40 is disposed on one side of the support chassis 161 and is connected to the driving gear 41 and configured to drive the driving gear 41 to rotate.

[0128] In this embodiment, the rotating unit drives the supporting chassis 161 to rotate, which can drive the central cylinder 11 and the telescopic positioning column 21 to rotate synchronously.

[0129] Because the telescopic drive 23 is connected to the lower portion of the central stop 22, it occupies the rotation center of the support chassis 161, making it difficult to directly connect the rotational power at the rotation center. In this embodiment, the rotational drive 40 (e.g., a motor) is located on one side. The rotational drive 40 drives the driving gear 41 and the driven gear 42 to rotate, thereby achieving the overall rotation of the support chassis 161, the central cylinder 11, and the telescopic positioning column 21 driven by the side.

[0130] Since the central cylinder 11 needs to rotate at a relatively small angle during operation (satisfying the need to adjust the rotation angle of the retractable positioning column 21 to align with the inner hole of the arc-shaped rhombus coil 100; and slightly widen the distance between the diagonal points A and B), in specific implementation, the number of teeth on the driving gear 41 is smaller than the number of teeth on the driven gear 42, which is conducive to deceleration driving and facilitates precise control of the rotation angle of the support chassis 161.

[0131] A further preferred embodiment: The coil placement platform module 120 further includes: a base plate 24, a fixed ring 25 fixed above the base plate 24, and a bushing 26 provided inside the fixed ring 25. The lower portion of the bushing 26 is rotatably connected to the fixed ring 25 via a bearing, and the upper portion of the bushing 26 is fixedly connected to the driven gear 42 and the support chassis 161. The bushing 26 is cylindrical with upper and lower openings, and the connecting section 224 and the telescopic drive 23 extend into the bushing 26 from both ends of the bushing 26. A further preferred embodiment is that the base plate 24 is flat, the fixed ring 25 is annular, and the bushing 26 is annular as a whole. In this embodiment, the base plate 24 is used to provide fixed support, and the bushing 26, the support chassis 161, and the driven gear 42 are rotatably connected to the fixed ring 25 as a whole. This embodiment provides a rotationally supported structure, which is conducive to improving the overall stability and integrity of the present invention.

[0132] In a further preferred embodiment, a joint mounting bracket 30 is fixed to the lower portion of the base plate 24, on which a tracheal joint 31 is provided. The telescopic drive 23 is a cylinder, and a rotary joint 32 is provided at the bottom of the cylinder for introducing pressurized gas into the cylinder. A connecting air pipe is provided between the tracheal joint 31 and the rotary joint 32. In this embodiment, the tracheal joint 31 is used to introduce pressurized gas into the cylinder, and the rotary joint 32 satisfies the requirement for a rotary connection.

[0133] A further preferred solution: the coil placement platform module 120 also includes an induction component mounting frame 34, the upper part of the induction component mounting frame 34 is fixed to the connecting section 224, the lower part of the induction component mounting frame 34 extends downward from the bushing 26, and an induction ring 35 is fixedly installed below the induction component mounting frame 34, and a lifting position sensor is provided on one side of the induction ring 35 for use in conjunction with the induction ring 35 and for detecting the lifting position of the center support rod 22; the lifting position sensor includes a first sensor (not shown in the figure) and a second sensor 37 arranged upper and lower, and the first sensor and the second sensor 37 are respectively installed on the lower part of the base plate 24; the coil placement platform module 120 also includes a third sensor arranged on one side of the driven gear 42 and for detecting the rotation angle of the driven gear 42, and the driven gear 42 is provided with an induction plate for use in conjunction with the third sensor.

[0134] In this embodiment, the lifting position and rotation position of the center rod 22 can be detected by cooperating with the sensor and the induction ring 35 or the induction sheet, which is convenient for combination with the electrical control system to accurately control the lifting stroke of the cylinder and the rotation angle of the driven gear 42.

[0135] In summary, the coreless motor coil winding equipment of the present invention is centered around the "center cylinder 11," and the upper and lower modules (coil placement platform and upper plate) coordinate through precise alignment, telescoping, and lifting. The subassemblies structurally support each other and functionally complement each other, thereby jointly realizing an automated coil winding process.

[0136] Figure 22 The following are photos of the real object of the present invention, from left to right: a three-dimensional photo, a front view photo, and a top view partial photo.

[0137] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils, characterized in that: The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils applies hollow cup motor coil winding equipment, and the hollow cup motor coil winding equipment includes a central cylinder and n retractable positioning columns, n ≥ 3 and n is a natural number; the retractable positioning columns include a hanging state and a detached state for realizing unloading; when the retractable positioning column is in the hanging state: one end of the retractable positioning column is connected to the central cylinder, and the other end of the retractable positioning column protrudes from the outer side wall of the central cylinder, and n retractable positioning columns are arranged around the central cylinder; the retractable positioning column is put into the detached state: the retractable positioning column is completely detached from the central cylinder, or the retractable positioning column is completely accommodated in the central cylinder; The method for synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils comprises the following steps: Material preparation step: taking n sheet-shaped diamond coils, wherein: the inner hole of the sheet-shaped diamond coil is diamond-shaped, and the inner hole wall includes a diagonal point A and a diagonal point B arranged opposite to each other in the left and right directions; Coil stacking steps: pull the left and right sides of each sheet-like diamond coil apart, and expand the distance between the diagonal point A and the diagonal point B to H; keep the distance between the diagonal point A and the diagonal point B at H, and when the retractable positioning column is in the hanging state, apply pressure to the sheet-like diamond coil to deform the sheet-like diamond coil and fit the outer wall of the central cylinder, and make the diagonal point A and the diagonal point B of the sheet-like diamond coil respectively hang on two different retractable positioning columns; all the sheet-like diamond coils are stacked and wound on the outer circumference of the central cylinder according to a preset rule to form a preliminary round coil together.

2. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 1, characterized in that: In the material preparation step, the sheet-like diamond coil is rolled and pressed into an arc shape as a whole.

3. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 2, characterized in that: The method for synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils also includes a coil shaping step located after the coil stacking step. The coil shaping step includes: when the retractable positioning column is in the disengaged state, repeatedly applying pressure to various locations on the outer wall of the initially wound coil to achieve a fine rounding of the initially wound coil and obtain a fine round coil.

4. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 3, characterized in that: The method for synthesizing a hollow cup motor coil by stacking and winding multiple rhombus coils also includes a material stripping step located after the coil shaping step. The material stripping step includes: placing the retractable positioning column in the disengaged state, applying an upward force to the finished circular coil, and moving the finished circular coil upward by a certain distance.

5. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 4, characterized in that: n retractable positioning posts are evenly arranged around the central cylinder; the method of synthesizing hollow cup motor coils by stacking and winding multiple diamond coils also includes a material positioning step located after the material preparation step and before the coil stacking step, and the material positioning step includes: positioning n of the sheet-shaped diamond coils at a preset position, and the state of the sheet-shaped diamond coils after positioning is: n of the sheet-shaped diamond coils are evenly arranged around the outer circumference of the central cylinder, and two adjacent sheet-shaped diamond coils are spaced apart, and each of the sheet-shaped diamond coils is close to the diagonal point A on one side abutting against the outer side surface of the central cylinder, and each of the sheet-shaped diamond coils is close to the diagonal point A. One side of the corner point B is spaced apart from the outer side surface of the central cylinder; n of the retractable positioning posts are inserted into the inner holes of the n sheet-like diamond coils one by one; the coil stacking step also includes: using a simultaneous operation method to simultaneously pull apart the left and right sides of each sheet-like diamond coil, and when the left and right sides of the sheet-like diamond coil are pulled apart, the retractable positioning post inserted into the inner hole of the sheet-like diamond coil is used to act on the diagonal point A; using a simultaneous operation method to simultaneously apply pressure to all of the sheet-like diamond coils, and make the diagonal points B of all of the sheet-like diamond coils hang on the retractable positioning posts at their respective predetermined positions.

6. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 5, characterized in that: The hollow cup motor coil winding equipment includes a coil placement platform module and an upper disk module arranged on the upper part of the coil placement platform module; the central cylinder and the retractable positioning column belong to the coil placement platform module, the upper disk module includes a synchronous column pressing device and a synchronous coil pressing device, the synchronous column pressing device includes a retractable column pressing unit, the synchronous coil pressing device includes a retractable coil pressing unit, the retractable column pressing units are n groups, and the n groups of retractable column pressing units are evenly arranged around the outside of the central cylinder; the retractable coil pressing units are n groups, and the n groups of retractable coil pressing units are evenly distributed with the central axis of the central cylinder as the center, the retractable coil pressing units and the retractable column pressing units are alternately arranged; and the angle between any group of retractable coil pressing units and the two adjacent retractable column pressing units is the same; The material positioning step further includes: inserting n of the retractable pressure column units into the inner holes of the n sheet-shaped diamond coils in a one-to-one correspondence, wherein a retractable positioning column and a retractable pressure column unit located in the inner hole of the same sheet-shaped diamond coil form a set of pulling units; The coil stacking step further includes: rotating the central cylinder so that all the retractable positioning posts rotate in the same direction, the retractable positioning posts in each group of pulling units act on the diagonal point A, and the retractable pressing column units in each group of pulling units act on the diagonal point B, so as to simultaneously pull the left and right sides of each sheet-like diamond coil apart; n retractable pressing coil units correspond one to one to the side of n sheet-like diamond coils close to the diagonal point B, and all the retractable pressing coil units extend at the same time to simultaneously apply pressure to all the sheet-like diamond coils, and make the diagonal points B of all the sheet-like diamond coils hang on the retractable positioning posts at their respective predetermined positions; The coil shaping step further includes: rotating the central cylinder and repeatedly extending and retracting the retractable coil pressing unit to repeatedly apply pressure to various locations on the outer side wall of the initially wound circular coil.

7. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 6, characterized in that: The coil placement platform module also includes a fixed support plate and a movable lifting plate respectively arranged around the central cylinder; the fixed support plate includes a fixed plate body and n fixed clamping posts fixed to the upper part of the fixed plate body, the movable lifting plate includes a movable plate body and n movable clamping posts fixed to the upper part of the movable plate body; the movable plate body is located below the fixed plate body; the n fixed clamping posts are evenly arranged around the central cylinder, the n movable clamping posts are evenly arranged around the central cylinder, and the movable clamping posts are arranged on a side of the fixed clamping posts close to the central cylinder, and one movable clamping post is correspondingly provided on one side of each fixed clamping post; the movable lifting plate includes an ascending state and a descending state; when the movable lifting plate is in the ascending state: the movable clamping post passes through the fixed plate body, and each movable clamping post and a fixed clamping post located on one side thereof jointly form a coil clamping slot; when the movable lifting plate is in the descending state, the top of the movable clamping post is lower than the upper surface of the fixed plate body, and a coil winding channel is formed between the fixed clamping post and the central cylinder; The material positioning step also includes: placing the movable lifting plate in the ascending state, and using each coil slot to clamp and fix the lower part of a sheet-like diamond coil, so as to position n sheet-like diamond coils in a preset position; the coil stacking step also includes: when the retractable coil pressing unit applies pressure to all the sheet-like diamond coils, the movable lifting plate is in the descending state.

8. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 7, characterized in that: The coil winding channel is annular in shape as a whole, and the bottom surface of the coil winding channel is flat; the movable disk body is annular in shape as a whole, and the movable lifting disk further includes a stripping ring fixed to the upper inner side of the movable disk body and arranged around the central cylinder, the stripping ring is annular in shape as a whole, and is slidably connected to the central cylinder; when the movable lifting disk is in the descending state, the top surface of the stripping ring is lower than the upper surface of the fixed disk body; When the movable lifting plate is in the ascending state, the top surface of the stripping ring is higher than the upper surface of the fixed plate body; The stripping step further includes: applying an upward force to the finishing circular coil by the stripping ring.

9. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 8, characterized in that: The center cylinder is cylindrical as a whole, and n sliding holes are arranged on the side wall of the center cylinder, and each of the sliding holes is slidably connected to a retractable positioning column, and the end of the retractable positioning column away from the central axis of the center cylinder is a positioning end; the coil placement platform module also includes a center abutment with one end extending into the center cylinder, and the center abutment includes a pushing section that is a frustum-shaped as a whole, and the pushing section is used to push all the retractable positioning columns out of the sliding hole and make the retractable positioning columns in the hanging state; the hollow cup motor coil winding device includes a column-column alignment state. When the hollow cup motor coil winding device is in the column-column alignment state, each group of retractable pressure column units is arranged opposite to one of the retractable positioning columns, and all the retractable pressure column units are extended at the same time and all the retractable positioning columns are pressed into and completely accommodated in the center cylinder, so that the retractable positioning column is in the disengaged state.

10. The method for synthesizing hollow cup motor coils by stacking and winding multiple rhombus coils according to claim 9, characterized in that: The synchronous pressure column device also includes: a front pressure positioning member fixing plate, a lower lifting ring plate and a lower lifting power member; the retractable pressure column unit is installed on the upper part of the front pressure positioning member fixing plate, and multiple sets of the retractable pressure column units are arranged around the central cylinder; the lower lifting ring plate is connected to the front pressure positioning member fixing plate along the vertical sliding connection; the retractable pressure column unit includes: a double pressure point mounting plate, a lower driven force-bearing member and a positioning member pressure head respectively provided at both ends of the double pressure point mounting plate; the double pressure point mounting plate is connected to the lower lifting ring plate along the horizontal sliding connection; the positioning member pressure head faces the central cylinder The lower part of each driven force-bearing member is provided with a lower wedge-shaped active pressure block on one side, and the lower part of each driven force-bearing member is provided with a lower wedge-shaped active pressure block, and the lower part of the lower wedge-shaped active pressure block is provided with an inclined lower active extrusion surface on one side close to the lower driven force-bearing member; the lower lifting power member is connected to the lower lifting ring plate and is used to drive the lower lifting ring plate together with all the lower wedge-shaped active pressure blocks to rise together, squeeze the lower driven force-bearing member, and drive all the double pressure point mounting plates carrying all the positioning member pressure heads to synchronously approach The center cylinder; the synchronous pressure column device also includes: a lower tension spring, a lower vertical rod and a fixed cover seat, the fixed cover seat is located above the front pressure positioning member fixing plate, and the two ends of the lower vertical rod are respectively fixedly connected to the front pressure positioning member fixing plate and the fixed cover seat; the two ends of the lower tension spring are respectively connected to the fixed cover seat and the double pressure point mounting plate; when all the double pressure point mounting plates synchronously approach the center of the center cylinder, all the lower tension springs are stretched and accumulate a second elastic force, and the lower lifting power member drives the lower lifting ring plate together with all the lower wedge-shaped active pressure blocks When descending together, under the action of the second elastic force, all the double pressure point mounting plates carrying the positioning member pressure heads synchronously move away from the center of the central cylinder; the lower driven force-bearing member is a second rotating wheel rotatably connected to the double pressure point mounting plate; the outer side surface of the second rotating wheel abuts against the lower active extrusion surface; the front pressure positioning member fixing plate is a circular ring plate as a whole; the lower lifting ring plate is a circular ring plate coaxially arranged with the front pressure positioning member fixing plate, and the lower lifting ring plate is sleeved on the outside of the front pressure positioning member fixing plate, and the lower wedge-shaped active pressure block is fixed to the upper part of the lower lifting ring plate.

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