Motor winding wire reverse twisting and cutting device

Abstract

The invention discloses motor winding wire reverse twisting and cutting-off equipment which comprises a rack, a reverse twisting device and a cutting-off device, the reverse twisting device comprises a first motor lifting table, a pin inserting mechanism and a twisting mechanism, and the cutting-off device comprises a second motor lifting table and a movable cutter. According to the motor winding wire reverse twisting and cutting-off equipment, the pin inserting mechanism is flexibly adjusted through the telescopic driving mechanism, and wires and insulation paper are protected in the reverse twisting process; the reverse twisting block of the twisting mechanism can be matched with the bending block to complete complex reverse twisting forming in the lifting and rotating process, the consistency of the reverse twisting angle and force is guaranteed, and the winding wire is prevented from being damaged. And the movable cutter realizes high-precision cutting under the action of the translation driving mechanism, and cuts are neat and free of wire breakage. Meanwhile, the negative pressure pipe and the negative pressure fan are designed, so that waste can be cleaned in time, and the production environment is kept clean. The whole equipment is highly automatic, the machining quality and the production efficiency of the motor winding wire are greatly improved, and the production cost is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of motor production equipment, and in particular relates to a motor winding wire reverse twisting and cutting device. Background Art

[0002] The quality of motor winding wire processing plays a crucial role in the motor's performance and reliability. The winding process is complex, and different motor specifications require different air-winding techniques. Certain specially designed motors require reversing and cutting after conventional twisting. Currently, there is no simple mechanical device for reverse twisting and cutting, requiring manual operation. Manual operation relies on experience and feel to reverse the winding wire, which is not only inefficient but also difficult to ensure consistency in the reverse twisting angle and force. This can easily lead to winding wire damage or poor reverse twisting results, impacting the overall performance of the motor. Existing simple mechanical devices often lack flexibility in their structural design, making it difficult to accurately and stably reverse the winding wire. The devices also have limited functionality, requiring multiple devices to complete complex wire shaping. A single device cannot efficiently complete the complex reverse twisting and shaping of the winding wire. As the motor manufacturing industry develops towards high precision, high efficiency and automation, the traditional motor winding wire twisting and cutting methods can no longer meet the growing production needs. There is an urgent need for a motor winding wire twisting and cutting device with a more reasonable structure, more complete functions and higher degree of automation to improve the processing quality and production efficiency of the motor winding wire and reduce production costs. Summary of the Invention

[0003] In order to solve the above technical problems, the technical solution adopted by the present invention is: a motor winding wire reverse twisting and cutting device, comprising a frame, a reverse twisting device and a cutting device, The anti-twist device includes a first motor lifting platform, a pin insertion mechanism, and a twisting mechanism, the first motor lifting platform is driven to rise and fall by the first lifting drive mechanism, the pin insertion mechanism includes a plurality of pairs of pins, the frame includes a fixed plate, a central opening is provided in the middle of the fixed plate, the central opening is located directly above the first motor lifting platform, the pins are movably mounted on the fixed plate, the pins are driven by the telescopic drive mechanism to extend into or out of the central opening, a plurality of bending blocks are installed on the fixed plate, a bending block corresponds to a pair of pins, one end of the bending block is fixedly connected to the fixed plate, the other end extends into the central opening and is provided with a wire blocking portion, the twisting mechanism includes an anti-twist block, the anti-twist block is located above the central opening, the anti-twist block is driven to rise and fall by the second lifting drive mechanism, the anti-twist block is driven to rotate by the first rotation drive mechanism, a plurality of anti-twist parts are provided on the anti-twist block, the anti-twist part bending blocks correspond to each other one to one, a wire insertion groove is provided on the anti-twist part, and a new angle forming portion is provided at the lower side of the wire insertion groove; The cutting device includes a second motor lifting platform and a movable cutter. The second motor lifting platform is driven to rise and fall by a third lifting drive mechanism. The movable cutter is movably installed in a fixed tube. The movable cutter is driven to move in the fixed tube by a translation drive mechanism. One end of the fixed tube is located above the second motor lifting platform and is provided with a wire insertion port.

[0004] As a preferred embodiment of the above technical solution, the telescopic drive mechanism includes a second rotation drive mechanism and an annular rotating plate. An annular groove is provided on the fixed plate, and the annular rotating plate is rotatably installed in the annular groove. A plurality of linear slide rails are provided in the annular groove, and the linear slide rails all point to the center opening. The annular groove passes through a plurality of telescopic openings together with the center opening. A slider is installed on the linear slide rail, and a pair of pins is fixedly connected to the slider. Each pair of pins includes two spaced pins, and one end of the pin passes through the telescopic opening and points to the center opening. A plurality of arc guide grooves are provided on the annular rotating plate, and the arc guide grooves correspond to the sliders. Rollers are provided in the arc guide grooves, and the rollers are rotatably connected to the corresponding sliders. One end of the arc guide groove is close to the center opening, and the distance between the other end and the center opening gradually increases. The annular rotating plate is driven to rotate by the second rotation drive mechanism.

[0005] As a preferred embodiment of the above technical solution, the second rotation drive mechanism includes a first cylinder, a linear slide rail, and a swing arm. One end of the swing arm is fixedly connected to the annular rotating plate, and the other end is provided with a U-shaped movable opening. A pulley is provided in the U-shaped movable opening. A sliding block is installed on the linear slide rail. The first cylinder drives the sliding block to move on the linear slide rail, and the pulley is rotatably connected to the sliding block.

[0006] As a preferred embodiment of the above technical solution, the frame is fixedly connected with a plurality of upper guide rods, the upper guide rods are respectively covered with upper sliding sleeves, the anti-torsion block is fixedly installed on the lifting plate, and the upper sliding sleeves are respectively fixedly connected to the lifting plate, the second lifting drive mechanism includes a first motor and a first screw rod, the first screw rod is rotatably connected to the frame, the first motor drives the first screw rod to rotate, the first screw rod is cooperated with and installed on the first screw rod, and the first screw rod pair is fixedly connected to the lifting plate; the first rotation drive mechanism includes a second motor, and the second motor is fixedly installed on the lifting plate; the third lifting drive mechanism has the same structure as the first lifting drive mechanism, wherein the first lifting drive mechanism includes a third cylinder, a plurality of lower guide rods are fixedly connected to the first motor lifting platform, the lower guide rods are respectively covered with a lower sliding sleeve, the lower sliding sleeve is fixedly connected to the frame, the third cylinder is fixedly installed on the frame, and the output shaft of the third cylinder is connected to the first motor lifting platform.

[0007] As a preferred embodiment of the above technical solution, a protruding block is provided at the lower end of the wire blocking portion.

[0008] As a preferred embodiment of the above technical solution, a plurality of wire avoidance grooves are respectively provided on both sides of the bending block.

[0009] As a preferred embodiment of the above technical solution, the translation drive mechanism includes a second cylinder, the second cylinder is installed on the frame, and the output shaft of the second cylinder extends into the fixed tube and is connected to the movable cutter.

[0010] As a preferred embodiment of the above technical solution, the fixed pipe is connected to a negative pressure pipe, and the negative pressure pipe is connected to a negative pressure fan.

[0011] The beneficial effects of the present invention are as follows: in the motor winding wire reverse twisting and cutting equipment of the present invention, in the reverse twisting device, the pin mechanism is flexibly adjusted through the telescopic drive mechanism to protect the wire and the insulating paper during the reverse twisting process; the reverse twisting block of the torsion mechanism can cooperate with the bending block to complete complex reverse twisting forming during lifting and rotation, ensuring the consistency of the reverse twisting angle and force, and avoiding damage to the winding wire. In the cutting device, the movable cutter realizes high-precision cutting under the action of the translation drive mechanism, and the incision is neat without the problem of broken wire. At the same time, the design of the negative pressure pipe and the negative pressure fan can clean up waste in time and keep the production environment clean. The whole set of equipment is highly automated, which greatly improves the processing quality and production efficiency of the motor winding wire and effectively reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural diagram of the anti-torsion device; Figure 3 It is a structural diagram of the pin insertion mechanism; Figure 4 It is the intention of the cooperation process between the pin insertion mechanism and the torsion mechanism; Figure 5 It is a structural schematic diagram of the cutting device; Figure 6 This is a schematic diagram of the motor winding wire before, after and after reverse twisting. DETAILED DESCRIPTION

[0013] The technical solutions of the present invention are described clearly and completely below with reference to the accompanying drawings. It should be understood that the embodiments described herein are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0016] Motor winding wire reverse twisting and cutting equipment, such as Figure 1-6 As shown, it includes a frame 1, an anti-torsion device and a cutting device. The anti-torsion device includes a first motor lifting platform 2, a pin insertion mechanism, and a twisting mechanism. The first motor lifting platform 2 is driven to rise and fall by a first lifting drive mechanism 3. The pin insertion mechanism includes a plurality of pairs of pins 4. The frame 1 includes a fixed plate 5. A center opening 6 is provided in the middle of the fixed plate 5. The center opening 6 is located directly above the first motor lifting platform 2. The pins 4 are movably mounted on the fixed plate 5. The pins 4 are driven by the telescopic drive mechanism to extend into or out of the center opening 6. A plurality of bending blocks 7 are installed on the fixed plate 5. A bending block 7 is connected to the fixed plate 5. A pair of pins 4 correspond to each other. One end of the bending block 7 is fixedly connected to the fixed plate 5, and the other end extends into the center opening 6 and is provided with a wire blocking portion 8. The torsion mechanism includes an anti-twist block 9, which is located above the center opening 6. The anti-twist block 9 is driven to rise and fall by the second lifting drive mechanism 10 and driven to rotate by the first rotation drive mechanism 11. The anti-twist block 9 is provided with a plurality of anti-twist portions 12, which correspond one to each bending block 7. The anti-twist portions 12 are provided with wire insertion slots 13, and a new angle forming portion 14 is provided on one side and below the wire insertion slot 13. The motor stator 15 is placed on the first motor lifting platform 2. The first lifting drive mechanism 3 drives the first motor lifting platform 2 to rise, driving the motor stator 15 to rise. The winding wire 16 in the motor stator 15 extends into the center opening 6. The telescopic drive mechanism drives the pin 4 to extend into the center opening 6. The winding wire 16 that needs to be reversed is clamped between a pair of pins 4. The pins 4 protect the lower end of the corresponding winding wire 16 and the insulating paper 17 there. At this time, the wire blocking portion 8 on the bending block 7 is located on one side of the winding wire 16. The second lifting drive mechanism 10 drives the anti-twist block 9 to descend, so that the upper end of the winding wire 16 is gradually inserted into the wire insertion slot 13. Then, as the anti-twist block 9 continues to descend, the first rotary drive mechanism 11 drives the anti-twist block 9 to rotate at the same time, so that the originally bent R angle 50 of the winding wire 16 gradually extends into the wire insertion slot 13 and becomes straight. The anti-twist block 9 continues to rotate, driving the winding wire 16 to rotate accordingly. The lower end of the winding wire 16 touches the wire blocking portion 8, and the winding wire 16 bends to form a new R angle 51. Then the anti-twist block 9 stops rotating, the anti-twist block 9 rises and resets, the pin 4 retracts and resets, and the first motor lifting platform 2 descends.

[0017] The cutting device includes a second motor lift 18 and a movable cutter 19. The second motor lift 18 is driven to rise and fall by a third lift drive mechanism 20. The movable cutter 19 is movably mounted in a fixed tube 21. The movable cutter 19 is driven to move in the fixed tube 21 by a translation drive mechanism 23. One end of the fixed tube 21 is located above the second motor lift 18 and is provided with a wire insertion port 22. After the winding wire 16 is reversed, the motor stator 15 is transferred to the second motor lift 18. The second motor lift 18 drives the motor stator 15 to rise, so that the reversed winding wire 16 rises and is inserted into the fixed tube 21 through the wire insertion port 22. The translation drive mechanism 23 drives the movable cutter 19 to move, cutting off the excess portion that protrudes due to the straightening after reverse twisting. The movable cutter 19 then resets and the second motor lift 18 descends. When there are multiple reverse-twisted winding wires 16 in the motor stator 15 , the second motor lifting platform 18 is additionally provided with a third rotation drive mechanism 24 to drive the rotation of the motor stator 15 and cut the winding wires 16 one by one.

[0018] Furthermore, the telescopic drive mechanism includes a second rotation drive mechanism and an annular rotating plate 25. An annular groove 26 is provided on the fixed plate 5. The annular rotating plate 25 is rotatably installed in the annular groove 26. A plurality of linear slide rails 31 are provided in the annular groove 26. The linear slide rails 31 all point to the center opening 6. The annular groove 26 passes through a plurality of telescopic openings 29 together with the center opening 6. A slider is installed on the linear slide rail 31. A pair of pins 4 are fixedly connected to the slider. Each pair of pins 4 includes two spaced pins 4. One end of the pin 4 passes through the telescopic opening 29 and points to the center opening 6. A plurality of arc guide grooves 27 are provided on the annular rotating plate 25. The arc guide grooves 27 correspond to the sliders. Rollers 28 are provided in the arc guide grooves 27. The rollers 28 are rotatably connected to the corresponding sliders. One end of the arc guide groove 27 is close to the center opening 6, and the distance between the other end and the center opening 6 gradually increases. The annular rotating plate 25 is driven to rotate by the second rotation drive mechanism. As the annular rotating plate 25 rotates, rollers 28 within arcuate guide grooves 27 push the sliders along linear guide rails 31, causing the pins 4 to extend and retract synchronously. The gradual design of the arcuate guide grooves 27 allows the pins 4 to extend and exit the center opening 6 along a predetermined trajectory as the annular rotating plate 25 rotates, enabling multiple groups of pins 4 to clamp different winding wires 16.

[0019] Furthermore, the second rotational drive mechanism includes a first cylinder 30, a linear slide 31, and a swing arm 32. One end of the swing arm 32 is fixedly connected to the annular rotating plate 25, and the other end is provided with a U-shaped opening 33. A pulley 34 is mounted within the U-shaped opening 33. A sliding block 35 is mounted on the linear slide 31. The first cylinder 30 drives the sliding block 35 to move on the linear slide 31, and the pulley 34 is rotatably connected to the sliding block 35. The first cylinder 30 drives the sliding block 35 on the linear slide 31, transmitting power through the U-shaped opening of the swing arm 32 and the pulley 34, thereby driving the rotation of the annular rotating plate 25. The linear motion of the first cylinder 30 is converted into rotational motion of the annular rotating plate 25. The rotation angle is precisely controlled by mechanical limiters, thereby controlling the extension and retraction distance of the pins 4. The coordination between the swing arm 32 and the pulley 34 prevents rigid impact, ensuring smooth movement and extending the mechanical life.

[0020] Furthermore, the frame 1 is fixedly connected to a plurality of upper guide rods 36, and the upper guide rods 36 are respectively covered with upper sliding sleeves 37, the anti-torsion block 9 is fixedly mounted on the lifting plate 39, and the upper sliding sleeves 37 are respectively fixedly connected to the lifting plate 39, and the second lifting drive mechanism 10 includes a first motor and a first screw rod 38. The first screw rod 38 is rotatably connected to the frame 1, and the first motor drives the first screw rod 38 to rotate. The first screw rod 38 is matched with the first screw rod 38 and the first screw rod 38 pair is fixedly connected to the lifting plate 39; the first rotation drive mechanism 11 includes a second motor, and the second motor is fixedly mounted on the lifting plate 39; the third lifting drive mechanism 20 has the same structure as the first lifting drive mechanism 3, wherein the first lifting drive mechanism 3 includes a third cylinder, and the first motor lifting platform 2 is fixedly connected to a plurality of lower guide rods 41, and the lower guide rod 41 is covered with a lower sleeve 42, and the lower sleeve 42 is fixedly connected to the frame 1, the third cylinder is fixedly mounted on the frame 1, and the output shaft of the third cylinder is fixedly connected to the first motor lifting platform 2. Screw drives offer high precision, low noise, and strong self-locking properties, making them suitable for lifting operations requiring precise positioning. The combination of guide rods and sleeves enhances equipment rigidity and reduces vibration errors during processing. The drive mechanism for achieving linear motion can be selected from existing drive mechanisms capable of linear displacement, such as a combination of a cylinder, a motor, and a screw, a hydraulic cylinder, or a linear motor. To facilitate control of the travel of each component to be moved, improve production efficiency, and enable coordinated operation between components, additional mobile drive mechanisms can be added, such as a fourth lifting drive mechanism 54 to control the lifting of components such as the fixed tube 21 and the movable cutter 19.

[0021] Furthermore, a raised block 43 is provided at the lower end of the wire retaining portion 8. Because the winding wire 16 has a certain degree of elasticity, after being reverse-twisted to a set angle and forming a new rounded angle 51, the winding wire 16 will rebound to a certain angle. The addition of the raised block 43 increases the reverse twist angle of the winding wire 16, allowing the rounded angle formed after the winding wire rebounds to precisely reach the set value.

[0022] Furthermore, a plurality of wire avoidance grooves 44 are provided on both sides of the bending block 7. The wire avoidance grooves 44 are distributed on both sides of the bending block 7 to provide escape space for the winding wire 16 during the reverse twisting process to avoid damage to the adjacent wires caused by extrusion.

[0023] Furthermore, the translation drive mechanism 23 includes a second cylinder mounted on the frame 1. The output shaft of the second cylinder extends into the fixed tube 21 and is connected to the movable cutter 19. The second cylinder drives the cutting action quickly, cooperates with the fixed tube 21 to position, and the cut is smooth and burr-free, with high cutting accuracy.

[0024] Furthermore, the fixed tube 21 is connected to a negative pressure tube 45, which is connected to a negative pressure blower. During the cutting process, suction is generated, drawing the cut waste (such as wire scraps) into a collection device. This automatically cleans the waste and keeps the work area tidy.

[0025] It is worth mentioning that the technical features such as motors and cylinders involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional means in the field and should not be regarded as the inventive point of this patent. This patent will not be further elaborated.

[0026] The above describes in detail the preferred specific embodiments of the present invention. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. Motor winding wire reverse twisting and cutting device, characterized in that, It includes a frame, anti-torque device and cutting device. The anti-twist device includes a first motor lifting platform, a pin insertion mechanism, and a twisting mechanism, the first motor lifting platform is driven to rise and fall by the first lifting drive mechanism, the pin insertion mechanism includes a plurality of pairs of pins, the frame includes a fixed plate, a central opening is provided in the middle of the fixed plate, the central opening is located directly above the first motor lifting platform, the pins are movably mounted on the fixed plate, the pins are driven by the telescopic drive mechanism to extend into or out of the central opening, a plurality of bending blocks are installed on the fixed plate, a bending block corresponds to a pair of pins, one end of the bending block is fixedly connected to the fixed plate, the other end extends into the central opening and is provided with a wire blocking portion, the twisting mechanism includes an anti-twist block, the anti-twist block is located above the central opening, the anti-twist block is driven to rise and fall by the second lifting drive mechanism, the anti-twist block is driven to rotate by the first rotation drive mechanism, a plurality of anti-twist parts are provided on the anti-twist block, the anti-twist part bending blocks correspond to each other one to one, a wire insertion groove is provided on the anti-twist part, and a new angle forming portion is provided at the lower side of the wire insertion groove; The cutting device includes a second motor lifting platform and a movable cutter. The second motor lifting platform is driven to rise and fall by a third lifting drive mechanism. The movable cutter is movably installed in a fixed tube. The movable cutter is driven to move in the fixed tube by a translation drive mechanism. One end of the fixed tube is located above the second motor lifting platform and is provided with a wire insertion port.

2. The motor winding wire reverse twisting and cutting device according to claim 1, characterized in that: The telescopic drive mechanism includes a second rotation drive mechanism and an annular rotating plate. The fixed plate is provided with an annular groove, and the annular rotating plate is rotatably installed in the annular groove. A plurality of linear slide rails are provided in the annular groove, and the linear slide rails all point to the center opening. The annular groove passes through a plurality of telescopic openings together with the center opening. A slider is installed on the linear slide rail, and a pair of pins is fixedly connected to the slider. Each pair of pins includes two spaced pins, and one end of the pin passes through the telescopic opening and points to the center opening. A plurality of arc guide grooves are provided on the annular rotating plate, and the arc guide grooves correspond to the sliders. Rollers are provided in the arc guide grooves, and the rollers are rotatably connected to the corresponding sliders. One end of the arc guide groove is close to the center opening, and the distance between the other end and the center opening gradually increases. The annular rotating plate is driven to rotate by the second rotation drive mechanism.

3. The motor winding wire reverse twisting and cutting device according to claim 2, characterized in that: The second rotation drive mechanism includes a first cylinder, a linear slide rail, and a swing arm. One end of the swing arm is fixedly connected to the annular rotating plate, and the other end is provided with a U-shaped movable opening. A pulley is provided in the U-shaped movable opening. A sliding block is installed on the linear slide rail. The first cylinder drives the sliding block to move on the linear slide rail, and the pulley is rotatably connected to the sliding block.

4. The motor winding wire reverse twisting and cutting device according to claim 1, characterized in that: The frame is fixedly connected to a plurality of upper guide rods, the upper guide rods are respectively covered with upper sliding sleeves, the anti-torsion block is fixedly installed on the lifting plate, and the upper sliding sleeves are respectively fixedly connected to the lifting plate, the second lifting drive mechanism includes a first motor and a first screw rod, the first screw rod is rotatably connected to the frame, the first motor drives the first screw rod to rotate, the first screw rod is cooperated with and installed on the first screw rod, and the first screw rod pair is fixedly connected to the lifting plate; the first rotation drive mechanism includes a second motor, and the second motor is fixedly installed on the lifting plate; the third lifting drive mechanism has the same structure as the first lifting drive mechanism, wherein the first lifting drive mechanism includes a third cylinder, a plurality of lower guide rods are fixedly connected to the first motor lifting platform, the lower guide rods are respectively covered with a lower sliding sleeve, the lower sliding sleeve is fixedly connected to the frame, the third cylinder is fixedly installed on the frame, and the output shaft of the third cylinder is connected to the first motor lifting platform.

5. The motor winding wire reverse twisting and cutting device according to claim 1, characterized in that: A protruding block is provided at the lower end of the wire blocking portion.

6. The motor winding wire reverse twisting and cutting device according to claim 5, characterized in that: A plurality of wire-avoiding grooves are respectively provided on both sides of the bending block.

7. The motor winding wire reverse twisting and cutting device according to claim 1, characterized in that: The translation driving mechanism includes a second cylinder which is mounted on the frame. The output shaft of the second cylinder extends into the fixed pipe and is connected to the movable cutter.

8. The motor winding wire reverse twisting and cutting device according to claim 7, characterized in that: The fixed pipe is connected to a negative pressure pipe, and the negative pressure pipe is connected to a negative pressure fan.

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