Automatic wire coiling device for automatic production line of coreless motor rotor

Abstract

The invention discloses an automatic coiling device for an automatic production line of a coreless motor rotor, the automatic coiling device comprises a rotating base and a wire pressing device, the rotating base comprises a mounting platform, a guide rail, a cylinder, a motor, a rotating shaft, an ejector rod, a carrier positioning block and a material shifting device, the motor is connected with the rotating shaft, and the carrier positioning block is mounted at the top end of the rotating shaft; the carrier positioning block comprises a top plate, a side plate and a bottom plate, and a through hole serving as a moving channel of the ejector rod is formed in the bottom plate; the material shifting device comprises a material shifting block and a multi-axis motion platform, and a material shifting groove is formed in the material shifting block; the cylinder is fixedly connected with the lower end of the ejector rod; the wire pressing device comprises a pressing head driving cylinder and a pressing head, and the pressing head driving cylinder is connected with the pressing head. Thread ends on a coreless motor rotor can be pressed down through the pressing head, then the carrier positioning block of the rotating base drives the carrier to rotate, a circle of thread ends on a thread cup are sequentially pressed on a commutator, the device is suitable for being used on a production line, and automatic production is easy to achieve.

Description

Technical Field

[0001] The invention belongs to the field of automatic production equipment for coreless motor rotors, and more specifically, relates to an automatic winding device for an automated production line of coreless motor rotors. Background Art

[0002] With the development of science and technology and the increase in labor costs, production automation has become more and more in line with the current situation. Replacing manual production with fully automatic production lines has become the choice of more and more manufacturing companies.

[0003] Hollow cup motors are widely used in military, aerospace, civil appliances, industrial products and other fields because of their outstanding features such as high energy conversion efficiency, rapid starting and braking, stable and reliable operation, and small speed fluctuation.

[0004] The conventional structure of the coreless rotor includes a wire cup, a rotor frame, a rotor shaft and a commutator. The rotor frame is fixedly mounted on the rotor shaft, the commutator is mounted on the rotor frame, the wire cup covers the rotor frame, and a circumferentially distributed circle of wire ends on the wire cup is pressed together with a circumferentially distributed circle of commutator segments of the commutator.

[0005] In the prior art, before the wire ends of the wire cup of the hollow cup motor rotor and the commutator segments of the commutator are crimped, most of the wire ends of the wire cup are upright or slightly deflected at a relative angle, that is, roughly parallel to the axis of the wire cup, and the top surface of the commutator is horizontal. Therefore, the wire ends need to be pressed down to a roughly horizontal position to be close to the top surface of the commutator. In the prior art, this is usually done manually on an operating table and then the wire is crimped, which requires special personnel to operate and is relatively time-consuming and labor-intensive. Summary of the invention

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides an automatic wire winding device for an automated production line of a coreless motor rotor, which can press down the wire ends on the coreless motor rotor through a pressure head, and then rotate the carrier positioning block of the base to drive the carrier to rotate, thereby pressing a circle of wire ends on the wire cup onto the commutator in turn. The device is suitable for use on a production line and is easy to realize automated production.

[0007] To achieve the above object, according to the present invention, an automatic wire winding device for an automated production line of a coreless motor rotor is provided, characterized in that it comprises a rotating base and a wire pressing device, wherein:

[0008] The rotating base includes a mounting platform, a guide rail, a cylinder, a motor, a rotating shaft, a push rod, a carrier positioning block and a material dispensing device. The guide rail is horizontally mounted on the mounting platform to guide the movement of a carrier for carrying a hollow cup motor rotor. The motor and the cylinder are respectively mounted on the mounting platform. The rotating shaft is vertically arranged and rotatably mounted on the mounting platform. The motor is connected to the rotating shaft. The carrier positioning block is mounted on the top end of the rotating shaft. The carrier positioning block has an inner cavity. The carrier positioning block includes a top plate, a side plate and a bottom plate for receiving the carrier. The side plate connects the top plate and the bottom plate. The bottom plate is provided with a moving channel for the push rod. The through hole; the material-digging device comprises a material-digging block and a multi-axis motion platform, the material-digging block is mounted on the multi-axis motion platform, and a material-digging groove is arranged on the material-digging block so as to dig the carrier on the guide rail so as to allow the carrier to extend into the inner cavity of the carrier positioning block; the rotating shaft has a through hole that passes through from top to bottom, the rotating shaft and the push rod are coaxially arranged, and the push rod is movably installed inside the rotating shaft, and the cylinder is fixedly connected to the lower end of the push rod to drive the push rod to move up and down, so that when the push rod moves upward, the top end of the push rod cooperates with the top plate of the carrier positioning block to clamp the carrier, and when the push rod moves downward, the clamping of the carrier is released;

[0009] The wire pressing device includes a pressure head driving cylinder and a pressure head. The pressure head is connected to the pressure head driving cylinder to drive the pressure head to move horizontally, so that the pressure head presses down the standing wire head on the wire cup of the hollow cup motor rotor on the carrier.

[0010] Preferably, the end surface of one end of the pressure head for contacting the wire end is an arc surface, and arc transition angles are respectively provided at the upper edge and the lower edge of the arc surface.

[0011] Preferably, a blocking strip is provided along the length direction of the guide rail to block the carriers transmitted to the guide rail by the external transmission mechanism.

[0012] Preferably, a guide groove is provided on the top plate, and the guide groove is parallel to the guide rail, so that the carrier moves along the guide groove to the carrier positioning block.

[0013] Preferably, the carrier is provided with two mutually planar first guide surfaces, and correspondingly, the inner wall of the carrier positioning block is also provided with two mutually parallel second guide surfaces, and each of the second guide surfaces is respectively in contact with one of the first guide surfaces.

[0014] Preferably, the rotating base further includes an encoder, a photoelectric sensor and a sensing sheet, the encoder is connected to the output shaft of the motor, and the photoelectric sensor and the sensing sheet are respectively installed on the mounting platform and the rotating shaft to obtain the rotational position of the rotating shaft.

[0015] Preferably, the rotating shaft is mounted on the mounting platform via a bearing, an outer wall of the rotating shaft is provided with an external thread, and a locking nut is connected to the external thread of the rotating shaft, thereby locking the rotating shaft on the inner ring of the bearing.

[0016] Preferably, a receiving hole is provided on the guide rail, and the carrier positioning block is located at the receiving hole.

[0017] Preferably, the plane of the bottom plate used for carrying the carrier is coplanar with the plane of the guide rail used for carrying the carrier.

[0018] Preferably, a guide groove is arranged on the top plate throughout its length, and the guide groove is parallel to the guide rail;

[0019] There are two material shifting grooves on the material shifting block, and the two material shifting grooves are arranged along the length direction of the guide rail, so as to shift one of the carriers into the carrier positioning block and shift the other carrier out of the carrier positioning block at the same time.

[0020] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0021] 1) The present invention is an automatic wire winding device for an automated production line of a coreless motor rotor. The motor can drive a rotating shaft and a carrier positioning block on the rotating shaft to rotate, thereby rotating a carrier mounted on the carrier positioning block and a coreless motor rotor mounted on the carrier, so that a wire pressing device disposed next to a rotating base can automatically press the wire ends on the wire cup of the coreless motor rotor, thereby helping to realize the automation of wire pressing.

[0022] 2) The present invention provides an automatic wire winding device for an automated production line of hollow cup motor rotors. The push rod can extend from the through hole on the bottom plate of the carrier positioning block into the carrier positioning block to support the carrier, thereby cooperating with the top plate of the carrier positioning block to fix the carrier, preventing the carrier from being misaligned along the radial direction of the rotating shaft when the rotating shaft drives the carrier positioning block to rotate, thereby preventing the wire pressing device above the rotating base from performing normal wire pressing on the hollow cup motor rotor.

[0023] 3) The present invention is an automatic wire winding device for an automated production line of hollow cup motor rotors. The material shifting block can be moved under the drive of a multi-axis motion platform to allow the carrier to enter the material shifting groove, thereby shifting the carrier into the carrier positioning block to achieve the installation of the carrier, which is convenient for the wire pressing device above the rotating base to perform the wire pressing work.

[0024] 4) The automatic wire winding device for the automated production line of coreless motor rotors of the present invention fully mechanically and automatically drives the carrier and the coreless motor rotor mounted on the carrier to rotate, and cooperates with the wire pressing device above the rotating base to press a circle of wire ends on the wire cup of the coreless motor rotor and a circle of commutator segments of the commutator in sequence. No manual operation is required, which greatly liberates productivity, improves production efficiency, and effectively eliminates the risks of burns and the like caused by manual operation.

[0025] 5) The arc surface and arc transition angle of the pressure head end face are set to make the wire end fit perfectly in the middle of the commutator segment without being distorted, which is convenient for the next welding station, reduces false welding and improves the yield rate. The arc surface is equivalent to forming a groove, which can avoid the protective sleeve on the rotor shaft of the hollow cup motor rotor during the wire pressing process (the protective tube can prevent welding slag from falling into the commutator to produce defective products) to avoid damage to the protective sleeve during the winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 , Figure 3 It is a schematic diagram of the structure of the voltage line device of the present invention at different viewing angles;

[0028] Figure 4 It is a structural schematic diagram of the rotating base in the present invention;

[0029] Figure 5 This is a schematic diagram of the coreless cup motor rotor mounted on a carrier before the thread end of the spool is pressed down;

[0030] Figure 6 This is a schematic diagram of a coreless motor rotor mounted on a carrier with the spool thread already pressed down. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figure 1 to Figure 6 , an automatic wire coiling device for an automated production line of a coreless motor rotor, comprising a rotating base 200 and a wire pressing device 100, wherein:

[0033] The rotating base 200 includes a mounting platform 35, a guide rail 48, a cylinder 18, a motor 37, a rotating shaft 54, a push rod 56, a carrier positioning block 42 and a material shifting device, wherein:

[0034] The guide rail 48 is horizontally mounted on the mounting platform 35 to guide the movement of the carrier 15 for carrying the hollow cup motor rotor. It is preferably mounted on the mounting platform 35 through a mounting seat 49, and a blocking strip 47 is provided along the length direction of the guide rail 48 to block the carrier 15 for carrying the hollow cup motor rotor that is transported to the guide rail 48 by an external transport mechanism. The carrier 15 is equivalent to a tooling for installing and carrying the hollow cup motor rotor. The external transport mechanism can be a conveyor belt or a manipulator. If it is a conveyor belt, the conveyor belt is perpendicular to the guide rail 48, and the front carrier 15 is transported to the guide rail 48 in a direction perpendicular to the guide rail 48. Since the front carrier 15 is blocked by the blocking strip 47, the following carriers 15 are lined up on the transport mechanism and wait for the front carrier 15 to be sent away before they can be transported to the guide rail 48 in order.

[0035] The motor 37 and the cylinder 18 are respectively mounted on the mounting platform 35 . The rotating shaft 54 ​​is vertically arranged and rotatably mounted on the mounting platform 35 . The motor 37 is connected to the rotating shaft 54 ​​.

[0036] The carrier positioning block 42 is installed at the top end of the rotating shaft 54, and the carrier positioning block 42 has an inner cavity, and the carrier positioning block 42 includes a top block 421, a side connecting block 422 and a bottom block 423 for receiving the carrier 15, the side connecting block 422 connects the top block 421 and the bottom block 423, and the bottom block 423 is provided with a through hole serving as a moving channel for the top rod.

[0037] The material shifting device includes a material shifting block 8 and a multi-axis motion platform, the material shifting block 8 is installed on the multi-axis motion platform, and a material shifting groove is provided on the material shifting block 8 to shift the carrier 15 on the guide rail 48, so that the carrier 15 can extend into the inner cavity of the carrier positioning block 42 and be received by the bottom block 423 of the carrier positioning block 42, then the carrier 15 can be placed on the bottom block 423 of the carrier positioning block 42, and preferably the base 44 of the carrier 15 enters the inner cavity of the carrier positioning block 42.

[0038] The carrier 15 has many structural forms, as long as it can carry the hollow cup motor rotor. After the hollow cup motor rotor composed of the coil, the rotor frame and the commutator 45 is placed on the carrier 15, the soldering device above the rotating base 200 can perform welding operations on the hollow cup motor rotor.

[0039] The rotating shaft 54 ​​has a through hole that passes through from top to bottom. The rotating shaft 54 ​​and the push rod 56 are coaxially arranged, and the push rod 56 is movably installed inside the rotating shaft 54, that is, the rotating shaft 54 ​​and the push rod 56 are not fixed together, but are independent of each other, and the two can rotate and move relative to each other. The cylinder 18 is fixedly connected to the lower end of the push rod 56 to drive the push rod 56 to move up and down, so that when the push rod 56 moves upward, the top end of the push rod 56 cooperates with the push block 421 of the carrier positioning block 42 to clamp the carrier 15, and when the push rod 56 moves downward, it is convenient to release the clamping of the carrier 15. The lower end of the push rod 56 preferably exceeds the lower end of the rotating shaft 54, so that the cylinder 18 is connected to the push rod 56. When the push rod 56 moves upward, the carrier 15 is pressed against the push block 421, so that the carrier 15 cannot move. In this way, when the rotating shaft 54 ​​drives the carrier positioning block 42 and the carrier 15 to rotate together, the carrier 15 will not shift, thereby not affecting the soldering work of the soldering device above the rotating base 200 on the hollow cup motor rotor.

[0040] Furthermore, the cylinder 18 has a push rod 19, which is connected to the push rod 56 through a push rod connector 57. The push rod 19 is pushed upward to drive the push rod 56 to move upward. The cylinder 18 is fixedly mounted on the mounting platform 35 through a mounting block.

[0041] Furthermore, the top block 421 is provided with a guide groove 4211, and the guide groove 4211 is parallel to the guide rail 48, so that the carrier 15 moves along the guide groove 4211 to the carrier positioning block 42. If a portion of the carrier 15 extends upward beyond the top block 421, the guide groove 4211 can well adapt to the shape of the carrier 15, so that the carrier 15 can still enter the inner cavity of the carrier positioning block 42.

[0042] Furthermore, the carrier 15 is provided with two mutually planar first guide surfaces, and correspondingly, the inner wall of the carrier positioning block 42 is also provided with two mutually parallel second guide surfaces, and each of the second guide surfaces is respectively fitted with one of the first guide surfaces. If the carrier 15 and the carrier positioning block 42 have cylindrical structures, the first guide surface and the second guide surface are respectively formed into flat structures, and the two guide surfaces can make the flat positions fit together well, and can also prevent the carrier 15 from having rotational displacement when the carrier positioning block 42 drives the carrier 15 to rotate, thereby affecting the normal welding of the hollow cup motor rotor by the soldering device.

[0043] Furthermore, the motor 37 is connected to the rotating shaft 54 ​​through a gear mechanism, and the gear mechanism includes a driving gear 16 and a driven gear 17, and the driving gear 16 and the driven gear 17 are meshed with each other, so the driving gear 16 is installed on the output shaft of the motor 37, and the driven gear 17 is fixedly installed on the rotating shaft 54. The driven gear 17 drives the rotating shaft 54 ​​to rotate, and the rotating shaft 54 ​​drives the carrier positioning block 42 to rotate, and the carrier positioning block 42 drives the carrier 15 to rotate, and the carrier 15 drives the spool 14 on the carrier 15 and the hollow cup motor rotor to rotate. The induction sheet 39 is arranged above the driven gear 17.

[0044] Furthermore, the multi-axis moving platform is an XY-axis moving platform, which is used to drive the material shifting block 8 to move horizontally in a direction parallel to the guide rail and in a direction perpendicular to the guide rail, wherein the X-axis of the XY-axis moving platform is parallel to the guide rail 48, and the Y-axis is perpendicular to the guide rail 48. When the material shifting block 8 moves in a direction perpendicular to the guide rail 48, the material shifting groove can be stuck on the carrier 15. When it moves in a direction parallel to the guide rail 48, the carrier 15 can be moved, so that the carrier 15 can move along the length direction of the guide rail 48 to extend into the inner cavity of the carrier positioning block 42.

[0045] Reference Figure 1 The multi-axis motion platform includes a first cylinder 6, a slider, a mounting frame 22, a second slider 20, and a second cylinder 7. The material-pickup block 8 is fixedly mounted on the mounting frame 22, the mounting frame 22 is fixedly mounted on the first slider 381, the first slider 381 is pushed by the first cylinder 6, the first cylinder 6 pushes the first slider 381 to move forward and backward, the forward and backward movement of the first slider 381 drives the mounting frame 22 fixedly connected to the first slider 381 to move forward and backward, and the forward and backward movement of the mounting frame 22 drives the forward and backward movement of the material-pickup block 8. At the same time, the first cylinder 6 is fixedly mounted on the second slider 20, and the second slider 20 is pushed by the second cylinder 7, and the second cylinder 7 is fixedly mounted on the mounting platform 35. The second cylinder 7 pushes the second slider 20 to move left and right, and the first cylinder 6 fixedly mounted on the second slider 20 moves left and right. At the same time, it drives the material shifting block 8 to move left and right, so that the material shifting block 8 can achieve the functions of moving forward, right, backward, and left, and the carrier 15 carrying the wire cup 14 and the rotor frame that have not yet been welded is moved to the bottom of the solder gun for welding operation.

[0046] Furthermore, the rotating base 200 further includes an encoder, a photoelectric sensor 40 and a sensing sheet 39. The encoder is connected to the output shaft of the motor 37. The photoelectric sensor 40 and the sensing sheet 39 are respectively mounted on the mounting platform 35 and the rotating shaft 54 ​​to obtain the rotation position of the rotating shaft 54. The encoder can be used to obtain the rotation angle of the rotating shaft 54, and the photoelectric sensor 40 and the sensing sheet 39 can cooperate to obtain the initial position of the rotating shaft 54. The encoder, the photoelectric sensor 40 and the sensing sheet 39 can cooperate to obtain the rotation position of the rotating shaft 54.

[0047] Furthermore, the rotating shaft 54 ​​is mounted on the mounting platform 35 via a bearing, an outer wall of the rotating shaft 54 ​​is provided with an external thread, and a locking nut 53 is connected to the external thread of the rotating shaft 54, thereby locking the rotating shaft 54 ​​on the inner ring of the bearing to prevent axial shaking of the rotating shaft 54 ​​when the rotating shaft 54 ​​rotates. The rotating shaft 54 ​​is mounted on the mounting platform 35 via two bearings, the two bearings are a first bearing 51 and a second bearing 55, the first bearing 51 is above the second bearing 55, and the locking nut 53 locks the rotating shaft 54 ​​on the inner ring of the first bearing 51.

[0048] Furthermore, a receiving hole is provided on the guide rail 48, and the carrier positioning block 42 is located at the receiving hole. Then, the carrier positioning block 42 divides the guide rail 48 into two sections, one section is used to allow the carrier 15 to enter the carrier positioning block 42, and the other section is used to allow the carrier 15 that has completed the welding process to leave the carrier positioning block 42 and move to the next process.

[0049] Furthermore, the plane of the bottom block 423 for carrying the carrier 15 is coplanar with the plane of the guide rail 48 for carrying the carrier 15 , which facilitates the carrier 15 on the guide rail 48 to enter and exit the carrier positioning block 42 .

[0050] Furthermore, the guide groove 4211 on the top block 421 is arranged throughout the length, and there are two material-dividing grooves on the material-dividing block 8, and the two material-dividing grooves are arranged along the length direction of the guide rail 48, so as to be used to dial one of the carriers 15 into the carrier positioning block 42 and dial the other carrier 15 out of the carrier positioning block 42 at the same time.

[0051] The base rotating device is integrally arranged below the soldering gun of the soldering device. The motor 37 is preferably a reduction motor 37 having a gearbox 36. The driving gear 16 is fixedly mounted on the output shaft of the gearbox 36. The motor 37 is connected to an encoder to form a closed-loop control. The gearbox 36 is fixedly mounted on the flange 41 and fixedly mounted on the mounting platform 35 through the flange 41. The rotating shaft 54 ​​is fixedly mounted on the mounting platform 35 through a bearing. A plurality of support columns 34 are respectively arranged around the mounting platform 35 for mounting on the table of the production line.

[0052] A locking nut 53 is arranged above the induction sheet 39, and a bearing and a bearing support ring 50 are arranged at the upper end of the locking nut 53. The bearing and the bearing support ring 50 are arranged inside the bearing mounting seat 52, and the bearing mounting seat 52 is installed on the mounting platform 35. The carrier positioning block 42 is arranged at the upper end of the rotating shaft 54 ​​and is fixedly installed with the rotating shaft 54. The wire cup 14 and the rotor of the hollow cup motor 37 are arranged on the carrier 15 at the same time. The outer side of the rotor shaft 43 of the hollow cup motor 37 is provided with a protective sleeve 13. The protective sleeve 13 is used to protect the commutator 45. In the case of high-temperature welding, the tin beads and rosin will not splash into the slots of the commutator 45 to prevent the generation of defective products.

[0053] The wire pressing device 100 includes a pressure head driving cylinder 2 and a pressure head 5. The pressure head driving cylinder 2 is installed on the mounting platform 35 or the base 1. The pressure head 5 is connected to the pressure head driving cylinder 2 to drive the pressure head 5 to move horizontally, so that the pressure head 5 can press down the standing wire head on the wire cup of the hollow cup motor rotor on the carrier (initially, part of the wire head on the wire cup is upright, and another part is relative to the upright position, with a certain deflection angle inward or outward, and needs to be pressed down to a roughly horizontal position and close to the commutator to achieve welding of the wire head and the commutator). The pressure head driving cylinder 2 is preferably a slider cylinder, and the slider 3 is connected to the mounting block 4, and the pressure head 5 is preferably connected through the mounting block. Two wire pressing devices 100 can be set at the same time, and are arranged symmetrically on both sides of the wire cup 14, which can improve work efficiency.

[0054] The end face of one end of the pressing head 5 for contacting the thread end is an arc surface 52, and arc transition angles are respectively provided on the upper and lower edges of the arc surface 52, namely an upper arc transition angle 53 and a lower arc transition angle 51. The upper arc transition angle 53 can contact the thread end 141 that is standing and deflected outward at a certain angle, and the lower arc transition angle 51 can contact the thread end 141 that is standing and deflected inward at a certain angle. Then the pressing head 5 moves horizontally to press the thread end 141 to a roughly horizontal state.

[0055] The working process of the present invention is as follows:

[0056] 1)Reference Figure 1 , Figure 4, the first cylinder 6 pushes the first slider 381 forward, driving the material-dispensing block 8 installed with the first slider 381 to move to the left, and the material-dispensing groove on the material-dispensing block 8 is stuck on the carrier 15. Then, the second cylinder 7 pushes the second slider 20 forward, and the movement of the second slider 20 drives the material-dispensing block 8 forward, driving the carrier 15 to move forward as well. The flat part of the carrier 15 is loaded into the carrier positioning block 42, and at the same time, the cylinder pushes the push rod 19 upward, and the push rod 19 pushes the push rod 56 through the connector 57, so that the push rod 56 moves upward to support the carrier 15, and the push rod 56 and the top block 421 of the carrier positioning block 42 clamp the carrier 15 together, so that the carrier 15 is fixed in the carrier positioning block 42. At the same time, the material-dispensing block 8 retreats to the right, and then moves backward to return to the initial position.

[0057] 2) The pressing heads 5 of the left and right wire pressing devices 100 move horizontally at the same time, pressing the two wire ends 141 on the wire cup 14 down to a position close to the commutator at the same time.

[0058] 3) The pair of soldering guns of the soldering device above the rotating base first move downwards, and after the soldering guns are powered on, the two wire ends 141 in the wire cup 14 are welded to the commutator 45 (the commutator 45 has already been welded with solder points). After welding, the pair of soldering guns of the soldering device above the rotating base 200 are retracted upwards.

[0059] 4) The motor 37 drives the driving gear 16 to rotate, and then drives the driven gear 17 meshing with the driving gear 16 to rotate. The rotation of the driven gear 17 drives the rotating shaft 54 ​​fixedly mounted on the driven gear 17 to rotate. The rotation of the rotating shaft 54 ​​drives the sensor sheet 39 mounted on the rotating shaft 54 ​​to rotate a set angle, and at the same time drives the carrier positioning block 42 to rotate a set angle. The carrier positioning block 42 drives the carrier 15 to rotate a set angle. The set angle of rotation of the rotating shaft 54 ​​is determined by the sensor sheet 39 and the photoelectric sensor 40.

[0060] 5) If the number of the wire ends 141 is an even number, repeat the above steps 2), 3) and 4) until all the wire ends 141 are welded to the commutator 45 .

[0061] If the number of wire ends 141 is odd, when there is only one unwelded wire end 141, the pressure head on one side moves next time, and the solder gun on one side moves downward to weld the last wire end 141 of the wire cup 14 to the commutator 45. In this way, the welding of all wire ends 141 and the commutator 45 is completed.

[0062] After welding is completed, the push rod 19 falls back, pulling the push rod 56 back, and the push rod 56 releases the clamping of the carrier 15, so that the material shifting block 8 can smoothly shift the carrier 15 from the carrier positioning block 42, allowing the carrier positioning block 42 to enter the next process with the carrier and the hollow cup motor rotor carried on the carrier.

[0063] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic winding device for an automated production line of a coreless motor rotor, characterized in that: It includes a rotating base and a wire pressing device, wherein: The rotating base includes a mounting platform, a guide rail, a cylinder, a motor, a rotating shaft, a push rod, a carrier positioning block and a material dispensing device. The guide rail is horizontally mounted on the mounting platform to guide the movement of a carrier for carrying a hollow cup motor rotor. The motor and the cylinder are respectively mounted on the mounting platform. The rotating shaft is vertically arranged and rotatably mounted on the mounting platform. The motor is connected to the rotating shaft. The carrier positioning block is mounted on the top end of the rotating shaft. The carrier positioning block has an inner cavity. The carrier positioning block includes a top plate, a side plate and a bottom plate for receiving the carrier. The side plate connects the top plate and the bottom plate. A through hole is provided on the bottom plate as a moving channel for the push rod. The tool is provided with a material-dividing groove so as to move the carrier on the guide rail so as to allow the carrier to extend into the inner cavity of the carrier positioning block; the rotating shaft has a through hole which passes through the upper and lower parts, the rotating shaft and the push rod are coaxially arranged, and the push rod is movably installed inside the rotating shaft, and the cylinder is fixedly connected to the lower end of the push rod to drive the push rod to move up and down, so that when the push rod moves upward, the top end of the push rod cooperates with the top plate of the carrier positioning block to clamp the carrier, and when the push rod moves downward, the clamping of the carrier is released; The wire pressing device includes a pressure head driving cylinder and a pressure head. The pressure head is connected to the pressure head driving cylinder to drive the pressure head to move horizontally, so that the pressure head presses down the upright wire head on the wire cup of the hollow cup motor rotor on the carrier.

2. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The end surface of one end of the pressure head for contacting the thread head is an arc surface, and arc transition angles are respectively provided on the upper edge and the lower edge of the arc surface.

3. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: A material blocking strip is arranged along the length direction of the guide rail to block the carrier that is transported to the guide rail by an external transport mechanism.

4. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The top plate is provided with a guide groove, and the guide groove is parallel to the guide rail, so that the carrier moves along the guide groove to the carrier positioning block.

5. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The carrier is provided with two mutually planar first guide surfaces, and correspondingly, the inner wall of the carrier positioning block is also provided with two mutually parallel second guide surfaces, and each of the second guide surfaces is respectively in contact with one of the first guide surfaces.

6. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The rotating base also includes an encoder, a photoelectric sensor and a sensing sheet. The encoder is connected to the output shaft of the motor. The photoelectric sensor and the sensing sheet are respectively installed on the mounting platform and the rotating shaft to obtain the rotation position of the rotating shaft.

7. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The rotating shaft is installed on the mounting platform through a bearing. An external thread is provided on the outer wall of the rotating shaft. A locking nut is connected to the external thread of the rotating shaft, thereby locking the rotating shaft on the inner ring of the bearing.

8. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The guide rail is provided with a receiving hole, and the carrier positioning block is located at the receiving hole.

9. The automatic winding device for an automated production line of a coreless motor rotor according to claim 1, characterized in that: The plane of the bottom plate used for carrying the carrier is coplanar with the plane of the guide rail used for carrying the carrier.

10. The automatic winding device for an automated production line of a coreless motor rotor according to claim 9, characterized in that: A guide groove is arranged on the top plate throughout its length, and the guide groove is parallel to the guide rail; There are two material shifting grooves on the material shifting block, and the two material shifting grooves are arranged along the length direction of the guide rail, so as to shift one of the carriers into the carrier positioning block and shift the other carrier out of the carrier positioning block at the same time.

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