A precision winding machine

Abstract

The utility model relates to a precision winding machine belongs to motor rotor winding equipment technical field, including winding machine electrical cabinet, the upper portion of winding machine electrical cabinet is provided with fixed support bottom plate, the front of fixed support bottom plate is provided with the vertical setting rotor clamping mechanism, the top of fixed support bottom plate is provided with winding assembly, and the winding assembly includes the fixed clamping frame setting in the front, and the movable winding rotating speed box is set behind cooperation with fixed clamping frame, the top of fixed support bottom plate is provided with the liftable pressure rotor mechanism, and the pressure rotor mechanism sets near rotor clamping mechanism, and after the rotation axis is pressed into the rotation axis locking mouth sleeve set through pressure rotor mechanism, and the movable winding rotating speed box carries out the winding to rotor.

Description

Technical Field

[0001] This application belongs to the technical field of motor rotor winding equipment, and specifically relates to a precision winding machine. Background Technology

[0002] The motor rotor is the rotating component of an electric motor. An electric motor consists of two parts: a rotor and a stator. It is a device used to convert electrical energy into mechanical energy and vice versa. Motor rotors are divided into electric motor rotors and generator rotors.

[0003] With the continuous development of the motor industry, the requirements for motor performance are becoming increasingly stringent. As a crucial component of the motor, the quality of the winding of the motor rotor directly affects the overall performance of the motor. Traditional manual winding methods are not only inefficient but also prone to errors, failing to meet the needs of modern large-scale production.

[0004] In the publication document CN119696281A, regarding a motor rotor winding device, to improve production efficiency and solve problems such as low precision and poor adaptability, a main structure is constructed. A heat dissipation mechanism is located at the bottom of the main structure, and an electrostatic discharge mechanism is located at the top of the heat dissipation mechanism. The main structure includes a clamping component, a rotating winding assembly is fixedly connected to the outside of the clamping component, a housing is fixedly connected to the outside of the rotating winding assembly, and a rotating shaft is rotatably connected to the outside of the rotating winding assembly. A fixing rod is located on the outside of the clamping component, and the back of the fixing rod is installed with a connecting plate. An opening is located inside the fixing rod. It has a rotor shaft hole; the clamping component can move along the rotor axis, and the fixing rod can rotate to help the motor rotor adjust the position of the winding slot on the circumference. The clamping component consists of a base, a push plate, an adjustment mechanism, and a mounting shaft. The rotating winding assembly consists of a drive mechanism, a winding device, and a control system. The pushing device consists of a translation device, a transmission device, and a lifting device. All of these are existing technologies. In actual operation, the clamping component itself is fixedly connected to the outer shell and remains stationary. The rotating winding assembly is driven by the rotating shaft and the power is transmitted through gears, pulleys, and chains, enabling the rotating winding assembly to rotate around the clamping component.

[0005] However, according to the publicly available document, the production efficiency of individual workstations cannot be improved, and the fixed rod is directly mounted on the connecting plate. This rigid connection may cause parts to loosen or wear after long-term operation, affecting the overall stability and durability of the equipment. Moreover, the overall buffering and shock absorption design of the equipment is insufficient, especially when rotating at high speed and frequently adjusting the position of the winding groove, it is not enough to cope with the vibration and impact in this working scenario. Utility Model Content

[0006] The purpose of this invention is to address the problems of the prior art by providing a precision winding machine with at least two stations. This precision winding machine also increases winding efficiency by using a motor shaft for the fixing rod and solves the problem of the fixing rod being directly mounted on the connecting plate in the prior art.

[0007] To achieve the above technical objectives, the following technical solution is provided: A precision winding machine includes a winding machine electrical cabinet. A fixed support base plate is provided on the upper part of the winding machine electrical cabinet. A vertically arranged rotor clamping mechanism is provided at the front of the fixed support base plate. The rotor clamping mechanism includes at least two shaft locking nozzle kits, which are set on a horizontal plate. Connecting rods are provided at the four top corners of the horizontal plate. The horizontal plate is set below the fixed support base plate through the connecting rods. The upper end of the shaft locking nozzle kit passes through a through hole in the fixed support base plate. A winding assembly is provided above the fixed support base plate. The winding assembly includes a fixed clamping frame at the front and a movable winding speed box that cooperates with the fixed clamping frame and is located at the rear. A liftable rotor pressing mechanism is provided above the fixed support base plate and is located near the rotor clamping mechanism. After the rotor shaft is pressed into the shaft locking nozzle kit by the rotor pressing mechanism, the movable winding speed box winds the rotor.

[0008] In one feasible embodiment, the rotor clamping mechanism includes a first servo motor mounted on a horizontal plate, the shaft of the first servo motor passing downward through the horizontal plate and having a first synchronous pulley at its end; a second synchronous pulley is provided at the lower end of the shaft locking nozzle assembly, and the first and second synchronous pulleys are connected by a synchronous belt, so that one first servo motor can drive at least two shaft locking nozzle assemblies to rotate.

[0009] In one feasible embodiment, the pivot locking nozzle kit includes a base disposed on the upper surface of the horizontal plate, the base being provided with fasteners; the base has an internal cavity extending through the horizontal plate, and a bearing component is fixed within the cavity of the horizontal plate.

[0010] A threaded shaft is provided on the axis where the fasteners and bearings are located. The threaded shaft includes an inner shaft and an outer shaft. A second synchronous pulley is provided on the outer shaft at the bottom end of the threaded shaft, and a locking element is provided to fasten the second synchronous pulley and to the inner shaft.

[0011] The upper end of the threaded shaft has a locking nozzle base sleeved on the outer shaft. The locking nozzle base is located above the fastener, and a locking nozzle is connected above the locking nozzle base.

[0012] The locking nozzle includes a locking nozzle sleeve connected to the outer shaft and a locking inner clamp tube threaded to the inner shaft and threaded to the outer shaft. The outer shaft is rotated by the rotation of the second synchronous pulley, causing the locking inner clamp tube to make a lifting and lowering motion within the outer shaft, thereby achieving the clamping and loosening of the rotating shaft.

[0013] In one feasible embodiment, the movable winding speed gearbox includes a moving mechanism, a winding housing disposed on the moving mechanism, at least one pair of winding rods disposed on the winding housing, and a power mechanism that drives the at least one pair of winding rods and is disposed on the winding housing and located at the rear end, wherein the front end of the winding rods cooperates with a shaft locking nozzle assembly.

[0014] In one feasible embodiment, the winding rod includes a shaft fixed to the winding box via a first bearing, a third synchronous pulley fixed to the rear end of the shaft, and the third synchronous pulley connected to a fourth synchronous pulley fixed to the end of the shaft of a second servo motor serving as a power mechanism, which is located above the winding box via a first synchronous belt.

[0015] The front end of the shaft includes a support part and a rotating part. The support part is fitted with a wire exit mechanism fixed on the winding box. The rotating part includes a second bearing located at the front end of the shaft and extending into the wire exit mechanism.

[0016] In an implementable manner, the lead-out mechanism includes a fifth synchronous pulley fixed to the winding box, a second synchronous belt, a winding fork, a fork shaft, a sixth synchronous pulley, a winding head, a seventh synchronous pulley, a third synchronous belt, and an eighth synchronous pulley; wherein the fifth synchronous pulley is connected to the sixth synchronous pulley located at the rear end of the fork shaft at the bottom of the winding fork via the second synchronous belt.

[0017] The rear end of the winding head is fixed to the shaft by the second bearing, and a seventh synchronous pulley is provided on the outside of the rear end of the winding head. The seventh synchronous pulley is connected to the eighth synchronous pulley at the front end of the fork shaft located at the bottom of the winding fork seat by the third synchronous belt.

[0018] In one feasible embodiment, the moving mechanism includes a guide rail mounted on a base plate for a fixed support, and a slider fixed to the winding box is mounted on the guide rail.

[0019] It also includes a motor storage space, which includes a slot opened on the base plate of the fixed support. The front and rear ends of the slot are respectively provided with a first fixing plate and a second fixing plate. A third servo motor located below the base plate of the fixed support is provided on the second fixing plate.

[0020] The first and second fixed plates are provided with a housing shaft, which is located in an empty slot. Its rear end is connected to the shaft of the third servo motor. A fixing block is sleeved in the middle of the shaft and fixed to the winding housing.

[0021] The third servo motor drives the housing shaft to rotate, causing the fixed block located on the housing shaft to move back and forth. The fixed block then drives the winding housing to move along the guide rail.

[0022] In one feasible embodiment, the rotor pressing mechanism includes a pair of main support rods, on which a platform that moves up and down is mounted. At each end of the platform are a wire-cutting mechanism and a rotor pressing sleeve arranged parallel to the wire-cutting mechanism. It also includes a cylinder, the upper end of which is connected to the platform and the lower end of which is connected to a base plate for fixed support.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] This application has at least two winding stations, which greatly improves production efficiency, and the structure is simple; moreover, the numerical settings can make the rotor's center of gravity more stable. The motor rotor is tightly clamped by the rotor clamping mechanism. Compared with the simple fitting of the prior art, the clamping setting of this application can fix the rotor on the shaft before winding begins, or can be used for winding of rotors where the shaft and rotor slot are integrally formed.

[0025] The winding machine of this application has a more compact design. All components, such as the rotor clamping mechanism, winding assembly, and rotor pressing mechanism, are cleverly integrated into the fixed support base plate, which improves the overall integration and space utilization of the equipment.

[0026] Modular design, such as the moving mechanism and output mechanism of the movable winding speed box, makes the equipment more convenient to assemble, debug and maintain.

[0027] By introducing a first servo motor, a second servo motor, and a third servo motor, automated control of shaft locking, winding rod rotation, and winding box movement is achieved, significantly improving winding efficiency and consistency. Furthermore, intelligent monitoring and adjustment functions such as temperature monitoring and air pressure regulation can be added during subsequent modifications to enhance the equipment's adaptability and flexibility.

[0028] The equipment described in this application is simple to operate and improves work efficiency. It ensures accuracy and stability during the winding process through precise synchronous belt drive and bearing support structure, reducing errors and defect rates to improve winding accuracy. The overall stability of the equipment is enhanced through reasonable layout and structural design. In particular, it can better maintain the operating state of the equipment and enhance its stability when rotating at high speed and frequently adjusting the position of the winding groove. Attached Figure Description

[0029] 1. Electrical cabinet for winding machine; 2. Base plate for fixed support; 3. Rotor clamping mechanism; 4. Winding assembly; 5. Rotor pressing mechanism.

[0030] 31. Shaft locking nozzle kit; 32. Horizontal plate; 33. Connecting rod; 301. First servo motor; 302. First synchronous pulley; 303. Second synchronous pulley; 304. Synchronous belt; 310. Base; 311. Fastener; 312. Bearing; 313. Threaded shaft; 314. Locking fastener; 315. Locking nozzle base; 316. Locking nozzle; 3130. Inner shaft; 3131. Outer shaft; 3160. Locking nozzle sleeve; 3161. Locking inner clamp tube.

[0031] 41 Fixed clamping frame, 42 Movable winding speed gearbox, 420 Moving mechanism, 421 Winding box body, 422 Winding rod, 423 Power mechanism, 4201 Guide rail, 4202 Slider, 4203 Third servo motor, 4204 Box body shaft, 4205 Fixing block, 4220 Shaft, 4221 Third synchronous belt pulley, 4222 First synchronous belt, 4223 Second servo motor, 4224 Fourth synchronous belt pulley, 4225 Cable exit mechanism, 42250 Fifth synchronous belt pulley, 42251 Second synchronous belt, 42252 Winding fork, 42253 Sixth synchronous belt pulley, 42254 Winding head, 42255 Seventh synchronous belt pulley, 42256 Third synchronous belt, 42257 Eighth synchronous belt pulley, 42258 Fork shaft

[0032] 51 Main support rod, 52 Platform, 53 Wire cutting mechanism, 54 Rotor pressing sleeve, 55 Cylinder.

[0033] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0034] Figure 2 This is a schematic diagram of the internal structure of this embodiment;

[0035] Figure 3 This is a schematic diagram of the rotor clamping mechanism;

[0036] Figure 4 for Figure 3 Side view;

[0037] Figure 5 for Figure 4 Sectional view at point AA;

[0038] Figure 6 This is a schematic diagram of the winding assembly;

[0039] Figure 7 for Figure 6 Side view;

[0040] Figure 8 for Figure 7 Sectional view at point BB;

[0041] Figure 9 This is a schematic diagram of the rotor pressing mechanism. Detailed Implementation

[0042] like Figure 1 and Figure 3 The embodiment shown includes a precision winding machine, comprising a winding machine electrical cabinet 1. A fixed support base plate 2 is provided on the upper part of the electrical cabinet 1. A vertically arranged rotor clamping mechanism 3 is provided at the front of the fixed support base plate 2. The rotor clamping mechanism 3 includes at least two shaft locking nozzle assemblies 31, which are mounted on a horizontal plate 32. Connecting rods 33 are provided at the four corners of the horizontal plate 32. The horizontal plate 32 is positioned below the fixed support base plate 2 via the connecting rods 33. The upper end passes through a through hole set on the fixed support base plate 2; a winding assembly 4 is set above the fixed support base plate 2, the winding assembly 4 includes a fixed clamping frame 41 set at the front, and a movable winding speed box 42 that cooperates with the fixed clamping frame 41 and is set at the rear; a liftable rotor pressing mechanism 5 is set above the fixed support base plate 2, and the rotor pressing mechanism 5 is located near the rotor clamping mechanism 3; after the rotor shaft is pressed into the rotor locking nozzle kit 31 by the rotor pressing mechanism 5, the movable winding speed box 42 winds the rotor.

[0043] In this embodiment, in order to make the transmission of the rotor clamping mechanism 3 smoother and the synchronous tensioning more convenient, two shaft locking nozzle kits 31 are preferably provided.

[0044] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, the rotor clamping mechanism 3 includes a first servo motor 301 mounted on a horizontal plate 32. The shaft of the first servo motor 301 passes downward through the horizontal plate 32 and has a first synchronous pulley 302 at its end. A second synchronous pulley 303 is mounted at the lower end of the shaft locking nozzle assembly 31. The first synchronous pulley 302 and the second synchronous pulley 303 are connected by a synchronous belt 304, so that one first servo motor 301 can drive two shaft locking nozzle assemblies 31 to rotate.

[0045] In this embodiment, the pivot locking nozzle kit 31 includes a base 310 disposed on the upper surface of the horizontal plate 32, and the base 310 is provided with fasteners 311; the interior of the base 310 has a cavity that penetrates the horizontal plate 32, and a bearing 312 is fixed in the cavity of the horizontal plate 32.

[0046] A threaded shaft 313 is provided on the axis where the fastener 311 and the bearing 312 are located. The threaded shaft 313 includes an inner shaft 3130 and an outer shaft 3131. A second synchronous pulley 303 is provided on the outer shaft 3131 at the bottom of the threaded shaft 313, and a locking member 314 is provided to fasten the second synchronous pulley 303 and the inner shaft 3130.

[0047] The upper end of the threaded shaft 313 has a locking nozzle base 315 sleeved on the outer shaft 3131. The locking nozzle base 315 is located above the fastener 311, and a locking nozzle 316 is connected above the locking nozzle base 315.

[0048] The locking nozzle 316 includes a locking nozzle sleeve 3160 connected to the outer shaft 3131, and a locking inner clamp tube 3161 threadedly fastened to the inner shaft 3130 and threadedly connected to the outer shaft 3131. The outer shaft 3131 is driven to rotate by the rotation of the second synchronous pulley 303, so that the locking inner clamp tube 3161 makes a lifting and lowering motion within the outer shaft 3131, thereby achieving the clamping and loosening of the rotating shaft.

[0049] In this embodiment, as Figure 6 , Figure 7 and Figure 8 As shown, the movable winding speed gearbox 42 includes a moving mechanism 420, a winding box body 421 disposed on the moving mechanism 420, at least one pair of winding rods 422 disposed on the winding box body 421, and a power mechanism 423 that drives the at least one pair of winding rods 422 and is disposed on the winding box body 421 and located at the rear end, wherein the front end of the winding rod 422 cooperates with the shaft locking nozzle assembly 31.

[0050] First, the moving mechanism 420 includes a guide rail 4201 mounted on the fixed support base plate 2, and a slider 4202 fixed to the winding box 421 mounted on the guide rail 4201; it also includes a motor storage space, which includes a slot opened on the fixed support base plate 2, with a first fixing plate and a second fixing plate respectively mounted at the front and rear ends of the slot, and a third servo motor 4203 located below the fixed support base plate 2 mounted on the second fixing plate; a box shaft 4204 is mounted on the first and second fixing plates, located in the slot, with its rear end connected to the shaft of the third servo motor 4203, and a fixing block 4205 mounted in its middle and fixed to the winding box 421; the third servo motor 4203 drives the box shaft 4204 to rotate, causing the fixing block 4205 on the box shaft 4204 to move back and forth, and the fixing block 4205 drives the winding box 421 to move along the guide rail 4201.

[0051] The winding rod 422 includes a shaft 4220 fixed to the winding housing 421 via a first bearing. A third synchronous pulley 4221 is fixed to the rear end of the shaft 4220. The third synchronous pulley 4221 is connected to a fourth synchronous pulley 4224, which is located above the winding housing 421 and fixed to the end of the shaft of the second servo motor 4223, via a first synchronous belt 4222. The second servo motor 4223 is a power mechanism 423.

[0052] The front end of the shaft 4220 includes a support part and a rotating part. The support part is fitted with a wire outlet mechanism 4225 fixed on the winding box 421. The rotating part includes a second bearing disposed at the front end of the shaft 4220 and extending into the wire outlet mechanism 4225.

[0053] The lead-out mechanism 4225 includes a fifth synchronous pulley 42250 fixed to the winding housing 421, a second synchronous belt 42251, a winding fork 42252, a fork swivel 42258, a sixth synchronous pulley 42253, a winding head 42254, a seventh synchronous pulley 42255, a third synchronous belt 42256, and an eighth synchronous pulley 42257; wherein the fifth synchronous pulley 42250 is connected to the winding fork 421 via the second synchronous belt 42251. The sixth synchronous pulley 42253 is connected to the rear end of the fork shaft 42258 at the bottom of the winding fork 4252; the rear end of the winding head 42254 is fixed to the shaft 4220 by the second bearing, and a seventh synchronous pulley 42255 is provided on the outside of the rear end of the winding head 42254. The seventh synchronous pulley 42255 is connected to the eighth synchronous pulley 42257 at the front end of the fork shaft 42258 at the bottom of the winding fork 42252 via the third synchronous belt 42256. This ensures both wire output and timely reset of the winding head 42254 under the action of the synchronous belt group.

[0054] In this embodiment, the front end of the winding head 42254 cooperates with the fixed clamping bracket 41 to adjust the vertical angle of the rotor with a rotating shaft fixed at the locking nozzle 316. The position adjustment of the winding head 42254 is achieved by the moving mechanism 420.

[0055] In this embodiment, as Figure 9 As shown, the rotor pressing mechanism 5 includes a pair of main support rods 51, on which a vertically movable platform 52 is mounted. A wire-cutting mechanism 53 and a rotor pressing sleeve 54 arranged parallel to the wire-cutting mechanism 53 are respectively mounted at both ends of the platform 52. It also includes a cylinder 55, the upper end of which is connected to the platform 52, and the lower end to the fixed support base plate 2. The rotor pressing sleeve 54 and the locking nozzle 316 fix the rotor vertically, while the front end of the winding head 42254 cooperates with the fixed clamping frame 41 to fix the rotor horizontally. The rotor position is determined through positioning in four directions, facilitating precise winding. The rotor pressing sleeve 54 is essentially a tubular component that mates with the rotor's shaft.

[0056] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0059] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A precision winding machine, comprising a winding machine electrical cabinet (1), wherein a base plate (2) for fixing support is provided on the upper part of the winding machine electrical cabinet (1). Its features are, The front of the fixed support base plate (2) is provided with a vertically arranged rotor clamping mechanism (3). The rotor clamping mechanism (3) includes at least two shaft locking nozzle kits (31). The shaft locking nozzle kits (31) are arranged on the horizontal plate (32). Connecting rods (33) are arranged on the four top corners of the horizontal plate (32). The horizontal plate (32) is disposed below the fixed support base plate (2) via the connecting rod (33), wherein the upper end of the rotating shaft locking nozzle assembly (31) passes through the through hole disposed on the fixed support base plate (2); A winding assembly (4) is provided above the fixed support base plate (2). The winding assembly (4) includes a fixed clamping frame (41) at the front and a movable winding speed box (42) that cooperates with the fixed clamping frame (41) and is located at the rear. A liftable rotor pressing mechanism (5) is provided above the fixed support base plate (2), and the rotor pressing mechanism (5) is located near the rotor clamping mechanism (3); After the rotor shaft is pressed into the rotor locking nozzle assembly (31) by the rotor pressing mechanism (5), the movable winding speed box (42) winds the rotor.

2. The precision winding machine according to claim 1, characterized in that, The rotor clamping mechanism (3) includes a first servo motor (301) mounted on the horizontal plate (32). The shaft of the first servo motor (301) passes downward through the horizontal plate (32) and is provided with a first synchronous pulley (302) at its end. The lower end of the shaft locking nozzle assembly (31) is provided with a second synchronous pulley (303). The first synchronous pulley (302) and the second synchronous pulley (303) are connected by a synchronous belt (304), so that one first servo motor (301) can drive at least two shaft locking nozzle assemblies (31) to rotate.

3. The precision winding machine according to claim 2, characterized in that, The pivot locking nozzle kit (31) includes a base (310) disposed on the upper surface of the cross plate (32), and the base (310) is provided with fasteners (311); The base (310) has an internal cavity that extends through the horizontal plate (32). A bearing (312) is fixed inside the cavity of the horizontal plate (32). A threaded shaft (313) is provided on the axis where the fastener (311) and the bearing (312) are located. The threaded shaft (313) includes an inner shaft (3130) and an outer shaft (3131). A second synchronous pulley (303) is provided on the outer shaft (3131) at the bottom end of the threaded shaft (313), and a locking member (314) is provided to fasten the second synchronous pulley (303) and to the inner shaft (3130). The upper end of the threaded shaft (313) has a locking nozzle base (315) sleeved on the outer shaft (3131). The locking nozzle base (315) is located above the fastener (311), and the locking nozzle (316) is connected above the locking nozzle base (315). The locking nozzle (316) includes a locking nozzle sleeve (3160) connected to the outer shaft (3131) and a locking inner clamp tube (3161) threadedly fastened to the inner shaft (3130) and threadedly connected to the outer shaft (3131). The outer shaft (3131) is driven to rotate by the rotation of the second synchronous pulley (303), so that the locking inner clamp tube (3161) makes a lifting and lowering motion within the outer shaft (3131) to achieve clamping and loosening of the rotating shaft.

4. The precision winding machine according to claim 1, characterized in that, The movable winding speed gearbox (42) includes a moving mechanism (420), a winding box body (421) disposed on the moving mechanism (420), at least one pair of winding rods (422) disposed on the winding box body (421), and a power mechanism (423) that drives at least one pair of winding rods (422) and is disposed on the winding box body (421) and located at the rear end, wherein the front end of the winding rod (422) cooperates with the rotating shaft locking nozzle assembly (31).

5. The precision winding machine according to claim 4, characterized in that, The winding rod (422) includes a shaft (4220) fixed on the winding box (421) by a first bearing. A third synchronous pulley (4221) is fixed at the rear end of the shaft (4220). The third synchronous pulley (4221) is connected to a fourth synchronous pulley (4224) fixed at the end of the shaft of the second servo motor (4223), which is the power mechanism (423), above the winding box (421) via a first synchronous belt (4222). The front end of the shaft (4220) includes a support part and a rotating part. The support part is fitted with a wire outlet mechanism (4225) fixed on the winding box (421). The rotating part includes a second bearing disposed at the front end of the shaft (4220) and extending into the wire outlet mechanism (4225).

6. The precision winding machine according to claim 5, characterized in that, The lead-out mechanism (4225) includes a fifth synchronous pulley (42250) fixed to the winding box (421), a second synchronous belt (42251), a winding fork seat (42252), a fork seat shaft (42258), a sixth synchronous pulley (42253), a winding head (42254), a seventh synchronous pulley (42255), a third synchronous belt (42256), and an eighth synchronous pulley (42257); The fifth synchronous pulley (42250) is connected to the sixth synchronous pulley (42253) at the rear end of the fork shaft (42258) located at the bottom end of the winding fork (42252) via the second synchronous belt (42251); The rear end of the winding head (42254) is fixed to the shaft (4220) by the second bearing, and the seventh synchronous pulley (42255) is provided on the outside of the rear end of the winding head (42254). The seventh synchronous pulley (42255) is connected to the eighth synchronous pulley (42257) at the front end of the fork shaft (42258) located at the bottom end of the winding fork (42252) by the third synchronous belt (42256).

7. The precision winding machine according to claim 4 or 6, characterized in that, The moving mechanism (420) includes a guide rail (4201) disposed on the fixed support base plate (2), and a slider (4202) fixed to the winding box (421) is disposed on the guide rail (4201); It also includes a motor storage space, which includes a slot opened on the fixed support base plate (2). The front and rear ends of the slot are respectively provided with a first fixing plate and a second fixing plate. A third servo motor (4203) located below the fixed support base plate (2) is provided on the second fixing plate. The first fixing plate and the second fixing plate are provided with a housing shaft (4204). The housing shaft (4204) is located in the empty slot, and its rear end is connected to the shaft of the third servo motor (4203). A fixing block (4205) is sleeved in the middle and fixed to the winding housing (421). The third servo motor (4203) drives the housing shaft (4204) to rotate, causing the fixing block (4205) located on the housing shaft (4204) to move back and forth. The fixing block (4205) drives the winding housing (421) to move along the guide rail (4201).

8. The precision winding machine according to claim 1, characterized in that, The rotor pressing mechanism (5) includes a pair of main support rods (51), and a platform (52) that moves up and down is provided on the main support rods (51). A wire cutting mechanism (53) and a rotor pressing sleeve (54) arranged side by side with the wire cutting mechanism (53) are respectively provided at both ends of the platform (52). It also includes a cylinder (55), the upper end of which is connected to the platform (52) and the lower end of which is connected to the fixed support base plate (2).

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