Reverse tensioner and stator winding machine

Abstract

According to the reverse tensioner and the stator winding machine, when a wire is wound from a side surface corresponding to a long edge of a stator, two first wire guide wheels are driven to slide along with the tightening of the wire, and the two first wire guide wheels move close to each other, so that a sliding block slides along a sliding rod to extrude a first elastic piece, and the first elastic piece is driven to rotate; when the wire is wound from the side surface corresponding to the long side of the stator to the side surface corresponding to the short side, the winding flying fork rotates to wind the redundant wire due to the short winding stroke of the side surface corresponding to the short side, and at the moment, the first elastic piece rebounds to drive the sliding block to move and reset along the sliding rod; the two first wire guide wheels move along with the sliding block and move away from each other, so that redundant wound wires are dragged back, the wires are well prevented from being wound on a stator loosely, the situation that wound coils are irregular is avoided, and the quality and performance of the coils are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to stator winding machine technical field especially relates to a kind of reverse tensioner and stator winding machine. BACKGROUND

[0002] The existing stator core winding machine is disclosed in Chinese utility model patent on November 7, 2023, and the announcement number is CN219980625U, which comprises a rack, an iron core jig, an iron core corner device, a wire nozzle driving device, a wire nozzle and a damping tensioner; the iron core corner device, the wire nozzle driving device and the damping tensioner are all installed on the rack; the iron core corner device comprises an iron core limiting mechanism, a corner driving mechanism and a turntable connected with the corner driving mechanism, and the iron core jig is installed on the turntable; the wire nozzle is installed on the wire nozzle driving device, and the wire nozzle is provided corresponding to the iron core jig.

[0003] However, the stator core winding machine adjusts the tension of the enameled wire by using the damping tensioner, and the adjustment range is small, especially for the stator 62 with a large length-width ratio (not less than 3:1) as shown in the disc-type iron core. Figure 10 When winding from the long side to the short side of the stator 62, the excess wire cannot be pulled back well by the existing damping tensioner, resulting in loose winding of the wire on the stator, and finally making the wound coil irregular, which may affect the quality and performance of the coil. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a reverse tensioner and a stator winding machine to solve the problem that the existing damping tensioner cannot pull back the excess wire well, resulting in loose winding of the wire on the stator, and finally making the wound coil irregular, which may affect the quality and performance of the coil.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a reverse tensioner, comprising a support plate, two vertical rods are fixedly installed on one side of the support plate, at least two groups of reverse tensioning assemblies are provided between the two vertical rods, each group of the reverse tensioning assemblies comprises at least one sliding rod, a sliding block, a first elastic member and a first wire guide wheel, each sliding rod is fixed between the two vertical rods, a first elastic member is sleeved around each sliding rod, the sliding block is slidably arranged on the sliding rod, the first wire guide wheel is rotatably arranged on the side of the sliding block away from the support plate, the sliding block is fixedly connected to one end of the first elastic member, and the adjacent two groups of reverse tensioning assemblies are arranged in rotational symmetry.

[0006] Preferably, an incoming wire guide wheel and an outgoing wire guide wheel are rotatably arranged on one side of the support plate.

[0007] Preferably, the reverse tension assembly has two groups, each of which comprises two slide rods, each of which is arranged in parallel, and the wire inlet guide wheel and the wire outlet guide wheel are located on the opposite sides of the two vertical rods, and the connection line between the wire inlet guide wheel and the center point of a first guide wheel and the connection line between the wire outlet guide wheel and the center point of another first guide wheel are parallel to the slide rods.

[0008] A stator winding machine comprises a machine body, a positioning assembly is arranged on the machine body, the positioning assembly comprises a rotating disc, the rotating disc is rotatably arranged on the machine body, an iron core tool is detachably fixed on the rotating disc, the iron core tool comprises a circular plate and a plurality of stators arranged on the circular plate in a circumferential direction, the machine body is further provided with a winding mechanism, a wire clamping and cutting mechanism and a reverse tensioner.

[0009] Preferably, the winding mechanism comprises a fixed frame and a power assembly, a rotating rod is rotatably arranged on the fixed frame, a wire passing channel is arranged on the rotating rod, the power assembly is used for driving the rotating rod to rotate, a winding fly is fixedly installed on the outer surface of the rotating rod, a die head is arranged at one end of the rotating rod, a bottom groove with a size not smaller than that of the stator is arranged at the bottom of the die head, and the winding mechanism further comprises an anti-rotation assembly for limiting rotation of the die head.

[0010] Preferably, the anti-rotation assembly comprises a fixed block, the fixed block is fixedly connected with the winding fly, a rotating shaft is fixedly arranged through the fixed block, first and second rotating wheels with the same size are rotatably arranged at both ends of the rotating shaft and pass through the top surface and the bottom surface of the fixed block, a first fixed synchronous wheel is fixedly installed on the fixed frame, a first synchronous belt is arranged between the first fixed synchronous wheel and the first rotating wheel, a second fixed synchronous wheel is connected with the outer surface of the rotating rod through a bearing, the second fixed synchronous wheel is fixedly connected with the die head, and a second synchronous belt is arranged between the second fixed synchronous wheel and the second rotating wheel.

[0011] Preferably, the winding mechanism comprises a first lifting assembly, the output end of the first lifting assembly is fixedly installed with the fixed frame, and the die head is vertically provided with guide inclined surfaces inclined to the center of the bottom surface of the die head from top to bottom on both sides of the outer wall of the circular plate.

[0012] Preferably, the shearing line mechanism comprises an adjusting assembly and a shearing line assembly, the shearing line assembly comprises a first air cylinder, a cross plate, a fixed plate, a shearing plate, a second elastic element, a pressing block and a fixed seat, the output end of the first air cylinder is fixedly connected with the cross plate, one side of the cross plate is fixedly installed with the fixed seat, the fixed seat is opposite to the fixed plate, one side of the fixed plate is fixedly installed with the shearing plate, a bottom groove is formed in one end of the fixed plate opposite to the fixed seat, the second elastic element is fixedly installed on the inner wall of the bottom groove opposite to the fixed seat, the pressing block is fixedly installed at one end of the second elastic element, when the second elastic element is in the original length, the vertical distance between the pressing block and the fixed seat is smaller than the vertical distance between the shearing plate and the fixed seat, the vertical distance between the shearing plate and the fixed seat is smaller than the vertical distance between the fixed plate and the fixed seat, when the second elastic element is in the fully compressed state, the side of the fixed seat is parallel to the side of the shearing plate.

[0013] Preferably, the horizontal section of the stator is square-shaped, having two long sides and two short sides, the two long sides of the top surface of the stator extend outwardly with an outer edge, the top surface of the stator is provided with a guard plate, the guard plate extends along the two short sides of the stator and is provided with a side plate in the direction of approaching the circular plate.

[0014] Preferably, the top surface of the machine body is provided with a support column, two limiting plates are fixedly installed on the support column, the gap between the two limiting plates is larger than the size of one stator and smaller than the distance between two adjacent stators, the limiting plates are located above the stators, the length of the limiting plates is larger than the diameter of the wire flying fork rotating out of the wire, and the opposite faces of the two limiting plates are arc faces.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a driving winding mechanism makes the winding flying fork carry out winding, when the wire is wound from the side corresponding to the long side of the stator, two first wire guide wheels move close to each other driven by the tight wire, so that the sliding block slides along the slide rod and extrudes the first elastic element, and the wire is kept in the tight state and wound on the side corresponding to the long side of the stator, when winding from the side corresponding to the long side of the stator to the side corresponding to the short side, the wire will be wound in excess because the winding stroke of the side corresponding to the short side is short, at this time, the first elastic element rebounds and drives the sliding block to move along the slide rod and reset, so that the two first wire guide wheels move away from each other following the sliding block, and the excess wound wire is pulled back, so that the wire is well prevented from being wound on the stator in a loose state, and the wound coil is prevented from being disorderly, and the quality and performance of the coil are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model stator winding machine;

[0018] Figure 2 The first wire guide wheel position state structure schematic view of the counter-tensioner when winding on the side corresponding to the short side of the stator of the utility model;

[0019] Figure 3 The first wire guide wheel position state structure schematic view of the counter-tensioner when winding on the side corresponding to the long side of the stator of the utility model;

[0020] Figure 4 The winding mechanism structure schematic view of the utility model;

[0021] Figure 5 The clamping and shearing wire assembly structure schematic view of the utility model;

[0022] Figure 6 The utility model Figure 5 The structure schematic view of the middle A of the utility model;

[0023] Figure 7 The slide rail, the rotating disc, the guard plate, the fixing mechanism, the moving plate and the limiting plate structure schematic view of the utility model;

[0024] Figure 8 The moving plate, the clamping groove and the fixing mechanism structure schematic view of the utility model;

[0025] Figure 9 The circular plate, the stator, the rotating disc, the slide plate and the guard plate structure schematic view of the utility model;

[0026] Figure 10 The circular plate, the stator and the guard plate structure schematic view of the utility model;

[0027] 1, the machine body; 2, the winding mechanism; 21, the first lifting assembly; 22, the fixed frame; 23, the rotating rod; 24, the motor; 25, the die head; 26, the winding flying fork; 27, the anti-rotation assembly; 271, the fixed block; 272, the first rotating wheel; 273, the second rotating wheel; 28, the first fixed synchronous wheel; 29, the second fixed synchronous wheel; 210, the wire passing wheel; 3, the clamping and shearing wire mechanism; 31, the horizontal adjusting part; 32, the vertical adjusting part; 33, the clamping and shearing wire assembly; 331, the moving plate; 332, the first cylinder; 333, the horizontal plate; 334, the fixed seat; 335, the fixed plate; 336, the shearing plate; 337, the second elastic part; 338, the pressing block; 4, the counter-tensioner; 41, the support plate; 42, the vertical rod; 43, the slide rod; 44, the sliding block; 45, the first elastic part; 46, the first wire guide wheel; 47, the wire inlet guide wheel; 48, the wire outlet guide wheel; 49, the wire ring; 5, the slide rail; 6, the positioning assembly; 61, the circular plate; 62, the stator; 63, the rotating disc; 631, the sliding groove; 64, the slide plate; 65, the guard plate; 7, the fixing mechanism; 71, the support frame; 72, the second cylinder; 73, the pressing plate; 74, the third cylinder; 75, the top block; 8, the moving plate; 81, the clamping groove; 9, the limiting plate. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all, based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 10 , the utility model provides a counter-tensioner 4, including support plate 41, two vertical rods 42 are fixedly installed on one side of support plate 41, and at least two groups of counter-tensioning assemblies are arranged between two vertical rods 42, each counter-tensioning assembly includes at least one slide rod 43, sliding block 44, first elastic member 45 and first wire wheel 46, each slide rod 43 is fixed between two vertical rods 42, and each slide rod 43 is surrounded by first elastic member 45 (which can be provided as a spring), sliding block 44 is slidably arranged on slide rod 43, first wire wheel 46 is rotatably arranged on the side of sliding block 44 away from support plate 41, and sliding block 44 is fixedly connected to one end of first elastic member 45, and adjacent two groups of counter-tensioning assemblies are arranged in rotational symmetry.

[0030] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 9 and Figure 10 , a stator winding machine includes a machine body 1, the machine body 1 is provided with a positioning assembly 6, the positioning assembly 6 includes a rotating disc 63, the rotating disc 63 is rotatably arranged on the machine body 1, and the rotating disc 63 is detachably fixed with an iron core tool, the iron core tool includes a circular plate 61 and a plurality of stators 62 arranged on the circular plate 61 in a circle, and the machine body 1 is further provided with a winding mechanism 2, a wire clamping and cutting mechanism 3 and a counter-tensioner 4.

[0031] When winding the stator 62 as shown in Figure 10 Large width ratio, the winding mechanism 2 is driven to make the winding fly 26 wind, when the wire is wound from the side corresponding to the long side of the stator 62, the two first wire wheels 46 are slid along with the tightening of the wire, and the two first wire wheels 46 are transformed from Figure 2 Positional state to Figure 3The position state (the two first wire wheels 46 move away from each other) so that the excess winding wire is pulled back to keep it in a tight state, thereby preventing the wire from being loosely wound on the stator 62, avoiding the situation that the wound coil is not neat, and ensuring the quality and performance of the coil. Figure 3 The position state is transformed into Figure 2 The position state (the two first wire wheels 46 move away from each other) so that the excess winding wire is pulled back to keep it in a tight state, thereby preventing the wire from being loosely wound on the stator 62, avoiding the situation that the wound coil is not neat, and ensuring the quality and performance of the coil.

[0032] As shown in Figure 2 and Figure 3 , the support plate 41 on one side is provided with a wire inlet guide wheel 47 and a wire outlet guide wheel 48, and the support plate 41 on one side is further fixed with a wire guide ring 49 through a support.

[0033] As shown in Figure 2 and Figure 3 , two groups of counter-tensioning assemblies are taken as an example for illustration, and each counter-tensioning assembly includes two slide rods 43, so that two first elastic members 45 are required for each counter-tensioning assembly to make the rebounding force larger, thereby ensuring that the wire is pulled back to be tight when winding on the short side of the stator 62, and further ensuring the tightness of winding and the neatness of the coil, avoiding loose winding.

[0034] The slide rods 43 are arranged in parallel, the wire inlet guide wheel 47 and the wire outlet guide wheel 48 are located on the side opposite to the two vertical rods 42, the connection line between the wire inlet guide wheel 47 and the center point of one first wire wheel 46 and the connection line between the wire outlet guide wheel 48 and the center point of the other first wire wheel 46 are parallel to the slide rods 43, through such arrangement, the wire will not be wound together in the transmission process, and the wire between the wire outlet guide wheel 48 and one first wire wheel 46 and the wire between the wire inlet guide wheel 47 and the other first wire wheel 46 are relatively parallel to the slide rods 43, so that the subsequent wire pulling the first wire wheel 46 moves more smoothly.

[0035] The wire passes through the wire inlet guide wheel 47, the two first wire wheels 46, the wire outlet guide wheel 48 (at this time the wire is in Z shape) and the wire guide ring 49 in sequence, and finally enters the wire passage of the rotating rod 23, then passes through the wire guide wheel 210, and is finally guided out by the winding flyer 26.

[0036] As shown in Figure 9As shown, the dismounting principle of the specific iron core tooling is that a plurality of sliding grooves 631 are formed on the top surface of the turntable 63, and a sliding plate 64 is slidably arranged in the sliding grooves 631. The sliding plate 64 has a protruding portion, and the protruding portion is attached to the outer edge of the circular plate 61. After the circular plate 61 is placed on the turntable 63, the sliding plate 64 is adjusted to move along the sliding groove 631 until the protruding portion is attached to the outer edge of the circular plate 61. Then, the sliding plate 64 is fixed in the sliding groove 631 of the turntable 63 by using a screw, so as to complete the fixing of the circular plate 61, i.e. the iron core tooling. Conversely, after the winding is completed, the iron core tooling needs to be dismounted. The screw is dismounted, and then the sliding plate 64 is adjusted to move so that the protruding portion is no longer attached to the outer edge of the circular plate 61, so as to dismount the iron core tooling.

[0037] As shown in Figure 1 , Figure 7 and Figure 8 , the machine body 1 is provided with a sliding rail 5 and a fixing mechanism 7. The sliding rail 5 is slidably provided with a moving plate 8, and the moving plate 8 is rotatably provided with a turntable 63. The fixing mechanism 7 includes a support frame 71, a first fixing assembly and a second fixing assembly. The first fixing assembly includes a second air cylinder 72 and a pressing plate 73. The output end of the second air cylinder 72 is fixedly connected with the pressing plate 73. The pressing plate 73 is driven by the second air cylinder 72 to move, so as to press and fix the iron core tooling in the vertical direction, so that the iron core tooling is more stably placed on the turntable 63. The second fixing assembly includes a third air cylinder 74 and a top block 75. A clamping groove 81 adapted to the top block 75 is formed in the side wall of the moving plate 8. The third air cylinder 74 is adjusted to drive the top block 75 to enter the clamping groove 81, so as to limit the horizontal shaking of the moving plate 8 (i.e. the turntable 63), and further ensure the stability of the turntable 63.

[0038] As shown in Figure 4 , specifically, the anti-rotation assembly 27 includes a fixed block 271 fixedly connected with the winding flyer 26 (which has a wire outlet nozzle, and the specific structure is not described here), and a rotating shaft is fixedly penetrated through the fixed block 271. First and second rotating wheels 272 and 273 of the same size are rotatably arranged at the top surface and the bottom surface of the fixed block 271, respectively. A first fixed synchronous wheel 28 is fixedly installed on the fixed frame 22. The first and second fixed synchronous wheels 28 and 29 are of the same size and are concentrically arranged outside the rotating rod 23. A first synchronous belt (not shown in the figure) is arranged between the first fixed synchronous wheel 28 and the first rotating wheel 272. The rotating rod 23 is connected with the second fixed synchronous wheel 29 through a bearing on the outer surface. The second fixed synchronous wheel 29 is fixedly connected with the die head 25. A second synchronous belt (not shown in the figure) is arranged between the second fixed synchronous wheel 29 and the second rotating wheel 273.

[0039] When the motor 24 drives the rotating rod 23 to rotate, the rotating rod 23 drives the winding flying fork 26 to rotate, the winding flying fork 26 drives the fixed block 271 and the rotating shaft to rotate, because the first fixed synchronous wheel 28 is in a fixed state, so that when the rotating shaft rotates, the first rotating wheel 272 rotates along the first synchronous belt, and the second rotating wheel 273 rotates along the second synchronous belt, at this time the second fixed synchronous wheel 29 is stable, so as to ensure that the die head 25 is stable and does not rotate, through the anti-rotation assembly 27, the stability of the existing self-weight die head 25 is high, and the production cost is relatively low compared with the existing pneumatic or hydraulic or electric die head 25.

[0040] As shown in Figure 4 and Figure 7 , the winding mechanism 2 comprises a first lifting assembly 21 (which can be provided as a pneumatic cylinder or a hydraulic rod, etc.), and the output end of the first lifting assembly 21 is fixedly installed with a fixed frame 22, and the die head 25 is provided with a guide inclined surface inclined to the center of the bottom surface of the die head 25 from top to bottom on both sides of the outer wall of the circular plate 61.

[0041] By arranging the first lifting assembly 21, the fixed frame 22 is driven to move up and down, so as to drive the die head 25 to move up and down, which facilitates the wire to slide down the outer surface of the die head 25 and be tied on the outer surface of the stator 62.

[0042] As shown in Figure 1 , Figure 4 , Figure 5 and Figure 6 , the wire clamping and cutting mechanism 3 comprises an adjusting assembly and a wire clamping and cutting assembly 33 (the adjusting assembly here can be a two-axis motion assembly or a three-axis motion assembly, which is taken as a two-axis motion assembly here: a horizontal adjusting part 31 and a vertical adjusting part 32, wherein the horizontal adjusting part 31 and the vertical adjusting part 32 here can be provided as a pneumatic cylinder or a hydraulic rod, etc.), the output end of the horizontal adjusting part 31 is fixedly installed with a connecting plate, one side of the connecting plate is fixedly connected with the vertical adjusting part 32, the output end of the vertical adjusting part 32 is fixedly installed with a moving plate 331, and the moving plate 331 is fixedly installed with a first pneumatic cylinder 332 and a fixed plate 335.

[0043] Specifically, the clamp and cut wire assembly 33 comprises a first air cylinder 332, a horizontal plate 333, a fixed plate 335, a cutting plate 336, a second elastic member 337, a pressing block 338 and a fixed seat 334, the output end of the first air cylinder 332 is fixedly connected with the horizontal plate 333, the horizontal plate 333 is fixedly installed with the fixed seat 334 on one side, the fixed seat 334 is opposite to the fixed plate 335, the fixed plate 335 is fixedly installed with the cutting plate 336 on one side, a bottom groove is formed in one end of the fixed plate 335 opposite to the fixed seat 334, the second elastic member 337 (which can be a spring) is fixedly installed on the inner wall of the bottom groove opposite to one side of the fixed seat 334, the pressing block 338 is fixedly installed on one end of the second elastic member 337, when the second elastic member 337 is in the original length, the vertical distance between the pressing block 338 and the fixed seat 334 is smaller than the vertical distance between the cutting plate 336 and the fixed seat 334, the vertical distance between the cutting plate 336 and the fixed seat 334 is smaller than the vertical distance between the fixed plate 335 and the fixed seat 334, when the second elastic member 337 is in the completely compressed state, one side of the fixed seat 334 is parallelly attached to one side of the cutting plate 336;

[0044] When the clamp and cut wire work is needed, the adjusting assembly drives the clamp and cut wire assembly 33 to move, so that the wire end of the wire outlet end of the winding flying fork 26 is located between the fixed seat 334 and the pressing block 338, and then the first air cylinder 332 is adjusted to contract, so that the horizontal plate 333 is driven to move, the fixed seat 334 is driven to move close to the pressing block 338, until the fixed seat 334 and the pressing block 338 clamp and fix the wire, at this time, the cutting plate 336 does not contact the wire and the fixed seat 334;

[0045] When the subsequent cut wire work is performed, the first air cylinder 332 is continuously adjusted to contract, the fixed seat 334 is pressed against the pressing block 338, the pressing block 338 drives the second elastic member 337 to compress, until the fixed seat 334 moves to the side surface thereof being parallelly attached to the side surface of the cutting plate 336, so that the cutting plate 336 can cut the wire, and at this time, the other segment of the wire is still fixed and clamped by the fixed seat 334 and the pressing block 338, which facilitates the continuous winding work on the next stator 62.

[0046] As shown in the figure, Figure 10 The horizontal section of the stator 62 is square, for example, a trapezoid in the figure, having two long sides and two short sides, the two long sides of the top surface of the stator 62 extend outwardly with an outer edge to prevent the wire from detaching from the top surface of the stator 62 after being wound on the stator 62, the top surface of the stator 62 is provided with a guard plate 65, the guard plate 65 extends along the two short sides of the stator 62 to the direction close to the circular plate 61 and is provided with a side plate;

[0047] The guard plate 65 provided with the specific side plate makes the wire not completely tightly wound on the stator 62, so that after the winding is completed, the guard plate 65 can be removed, and the wire has a certain gap with the stator 62, thereby facilitating the subsequent binding of the coil.

[0048] AsFigure 7 As shown, the top surface of the body 1 is provided with a support column, and two limiting plates 9 are fixedly installed on the support column. The gap between the two limiting plates 9 is greater than the size of one stator 62 and less than the distance between two adjacent stators 62, so as to ensure that the wire is wound on one stator 62 each time. The limiting plates 9 are located above the stators 62, and the length of the limiting plates 9 is greater than the diameter of the wire fly 26 rotating out of the wire, so as to ensure that the wire can be guided and limited by the limiting plates 9 when the wire fly 26 rotates. The opposite faces of the two limiting plates 9 are arc faces, so that the wire can slide along the limiting plates 9 more smoothly.

[0049] As shown in the figure, Figure 4 The winding mechanism 2 includes a fixed frame 22 and a power assembly. The fixed frame 22 is rotatably provided with a rotating rod 23. The rotating rod 23 is provided with a wire passing channel. The rotating rod 23 is rotatably provided with a wire passing wheel 210, which facilitates the wire to pass through the wire passing channel and be guided to the wire fly 26. The power assembly is used to drive the rotating rod 23 to rotate. The power assembly here includes a motor 24, a transmission belt and a transmission wheel. The motor 24 is started to drive the rotating rod 23 to rotate under the cooperation of the transmission wheel and the transmission belt (this is a conventional structure design, and details are not described). The wire fly 26 is fixedly installed on the outer surface of the rotating rod 23. One end of the rotating rod 23 is provided with a die head 25. The bottom of the die head 25 is provided with a bottom groove which is not less than the size of the stator 62. This can ensure that the stator 62 is wrapped in the die head 25 during the downward movement of the die head 25, so as to ensure the normal winding work. The winding mechanism 2 further includes an anti-rotation assembly 27 for limiting the rotation of the die head 25. Through the setting of the anti-rotation assembly 27, the die head 25 can remain stable and not rotate when the rotating rod 23 drives the wire fly 26 to rotate;

[0050] As shown in the figure, Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 The specific winding principle is as follows:

[0051] One: the wire passes through the reverse tensioner 4, passes through the rotating rod 23, passes through the wire passing wheel 210 and is guided to the wire fly 26, and then the wire head at the wire outlet end of the wire fly 26 is clamped and fixed by the adjusting and clamping shear wire assembly 3;

[0052] Two: the vertical adjusting part 32 and the first lifting assembly 21 are adjusted at the same time, so that the clamping and shearing wire assembly 33, the wire head and the die head 25 move downward, until the bottom end of the die head 25 is attached to the circular plate 61, so that the bottom groove covers one stator 62, and at this time, the height position of the wire head is not higher than the height position of the circular plate 61. Then the motor 24 is started to drive the rotating rod 23 to rotate, so that the wire fly 26 performs the winding work. The motor 24 is started at the same time, and the first lifting assembly 21 is adjusted to reciprocate up and down at regular intervals. Under the action of the limiting plate 9, the wire is uniformly wound on the stator 62;

[0053] Three: when the wire is wound on the stator 62, the clamp and shear wire assembly 33 can be loosened and no longer fixed to the wire end, when the winding on a stator 62 is completed, the adjusting assembly drives the clamp and shear wire assembly 33 to move to clamp and shear the wire at the wire outlet end of the winding fly 26, avoiding the trouble of manual wire shearing (and the wire end sheared at this time is still fixed between the fixed seat 334 and the pressing block 338, facilitating the winding work of the next stator 62);

[0054] Four: then repeat the above steps two and three, that is, complete the winding work on each stator 62.

[0055] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A counter-tensioner characterized by: The utility model provides a kind of anti-tensioner, including support plate (41), one side of the support plate (41) is fixedly installed two vertical poles (42), at least two groups of reverse tensioning components are provided between two vertical poles (42), each group of the reverse tensioning component includes at least one slide rod (43), sliding block (44), first elastic member (45) and first wire wheel (46), each slide rod (43) is fixed between two vertical poles (42), first elastic member (45) is sleeved on the periphery of each slide rod (43), the sliding block (44) is slidably arranged on slide rod (43), the sliding block (44) is rotatably provided with first wire wheel (46) on the side away from support plate (41), the sliding block (44) is fixedly connected to one end of first elastic member (45), and adjacent two groups of the reverse tensioning component are rotationally symmetrical.

2. The counter-tensioner of claim 1, wherein: The support plate (41) is rotatably provided with an incoming wire guide wheel (47) and an outgoing wire guide wheel (48).

3. The counter-tensioner of claim 2, wherein: The reverse tensioning component has two groups, and each group of the reverse tensioning component includes two slide rods (43), each slide rod (43) is arranged in parallel, the incoming wire guide wheel (47) and the outgoing wire guide wheel (48) are located on the side away from the two vertical poles (42), and the connection line between the incoming wire guide wheel (47) and the center point of one first wire wheel (46) and the connection between the outgoing wire guide wheel (48) and the center point of another first wire wheel (46) are parallel to the slide rods (43).

4. A stator winding machine characterized by: Including body (1), the body (1) is provided with positioning assembly (6), the positioning assembly (6) includes rotary disc (63), the rotary disc (63) is rotatably arranged on the body (1), and the rotary disc (63) is detachably fixed with an iron core tool, the iron core tool includes a circular plate (61) and a plurality of stators (62) circumferentially arranged on the circular plate (61), the body (1) is further provided with a winding mechanism (2), a wire clamping and cutting mechanism (3) and the anti-tensioner (4) of any one of claims 1-3.

5. The stator winder of claim 4, wherein: The winding mechanism (2) includes a fixed frame (22) and a power assembly, the fixed frame (22) is rotatably provided with a rotating rod (23), the rotating rod (23) is provided with a wire passing channel, the power assembly is used to drive the rotating rod (23) to rotate, the rotating rod (23) is fixedly installed with a winding fly (26) on the outer surface, one end of the rotating rod (23) is provided with a die head (25), the bottom of the die head (25) is provided with a bottom groove not less than the size of the stator (62), and the winding mechanism (2) further includes an anti-rotation assembly (27) for limiting the rotation of the die head (25).

6. The stator winding machine of claim 5, wherein: The anti-rotation assembly (27) comprises a fixed block (271) fixedly connected with the winding flying fork (26), a rotating shaft is fixedly penetrated through the fixed block (271), the rotating shaft is rotatably provided with first and second rotating wheels (272 and 273) of the same size at two ends penetrating through the top surface and the bottom surface of the fixed block (271), the first fixed synchronous wheel (28) is fixedly installed on the fixed frame (22), the first synchronous belt is arranged between the first fixed synchronous wheel (28) and the first rotating wheel (272), the second fixed synchronous wheel (29) is connected with the outer surface of the rotating rod (23) through a bearing, the second fixed synchronous wheel (29) is fixedly connected with the die head (25), and the second synchronous belt is arranged between the second fixed synchronous wheel (29) and the second rotating wheel (273).

7. The stator winder of claim 5, wherein: The winding mechanism (2) comprises a first lifting assembly (21), and the output end of the first lifting assembly (21) is fixedly installed with the fixed frame (22); the die head (25) is vertically provided on both sides of the outer wall of the circular plate (61) from top to bottom and is provided with a guide inclined surface inclined to the center of the bottom surface of the die head (25).

8. The stator winder of claim 4, wherein: The clamping and shearing mechanism (3) comprises an adjusting assembly and a clamping and shearing assembly (33), the clamping and shearing assembly (33) comprises a first air cylinder (332), a horizontal plate (333), a fixed plate (335), a shearing plate (336), a second elastic element (337), a pressing block (338) and a fixed seat (334), the output end of the first air cylinder (332) is fixedly connected with the horizontal plate (333), one side of the horizontal plate (333) is fixedly installed with the fixed seat (334), the fixed seat (334) is opposite to the fixed plate (335), one side of the fixed plate (335) is fixedly installed with the shearing plate (336), a bottom groove is formed in one end of the fixed plate (335) opposite to the fixed seat (334), the second elastic element (337) is fixedly installed on the inner wall of the bottom groove opposite to one side of the fixed seat (334), one end of the second elastic element (337) is fixedly installed with the pressing block (338), when the second elastic element (337) is in the original length, the vertical distance between the pressing block (338) and the fixed seat (334) is smaller than the vertical distance between the shearing plate (336) and the fixed seat (334), the vertical distance between the shearing plate (336) and the fixed seat (334) is smaller than the vertical distance between the fixed plate (335) and the fixed seat (334), and when the second elastic element (337) is in the completely compressed state, one side of the fixed seat (334) is parallelly attached to one side of the shearing plate (336).

9. The stator winder of claim 4, wherein: The horizontal section of the stator (62) is square-shaped, has two long sides and two short sides, the two long sides of the top surface of the stator (62) extend outwardly and are provided with outer edges, the top surface of the stator (62) is provided with a guard plate (65), and the guard plate (65) is provided with side plates extending along the two short sides of the stator (62) and extending towards the circular plate (61).

10. The stator winder of claim 4, wherein: The top surface of the machine body (1) is provided with support columns, two limiting plates (9) are fixedly installed on the support columns, the gap between the two limiting plates (9) is greater than the size of a stator (62) and smaller than the distance between two adjacent stators (62), the limiting plates (9) are located above the stators (62), the length of the limiting plates (9) is greater than the diameter of the wire flying fork (26) rotating out of the wire, and the opposite surfaces of the two limiting plates (9) are arc surfaces.

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