A card forming device for new energy flat wire motor

Abstract

The present invention discloses a hairpin forming device for a new energy flat wire motor. The key points of the technical solution are that it comprises a blanking device, which is used to remove the paint skin, straighten and cut the enameled wire to form a flat copper wire; and a forming device, which is used to form the flat copper wire formed by the blanking device to form a hairpin wire; the forming device comprises a first forming mechanism, which is used to fold the flat copper wire into a U-shaped copper wire; a second forming mechanism, which is used to form a Z-shaped structure at the end of the U-shaped copper wire; and a third forming mechanism, which is used to perform 3D bending on the end of the U-shaped copper wire; the enameled wire is processed into a flat copper wire by the blanking device, and then the flat copper wire is formed into a hairpin by the forming device, without the need for manual cutting, blanking and flat copper wire forming, thereby improving work efficiency and bending accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of card forming of new energy motors, and more specifically, to a card forming device for new energy flat wire motors. Background Art

[0002] With the vigorous development of new energy vehicles, the demand for flat wire motors widely used in new energy vehicles is also increasing. In the process of flat wire motor assembly, since the electronic copper wire winding is a flat thick copper wire, the stator wire package cannot be formed by winding like round copper wire. The flat copper wire must be processed one by one at a time. After being formed into a hairpin, the hairpin wire is inserted into the stator core, and then through subsequent expansion, twisting, welding, varnishing and other equipment, the finished motor stator is finally formed.

[0003] In the process of processing flat copper wire into hairpin wire, the raw material used is enameled wire. During the processing, the enameled wire needs to be unwound, and then the paint layer is removed and cut into flat copper wires of fixed length. The flat copper wire cut into a specific length is then bent multiple times to form the required shape. Taking the U-pin wire as an example, it is U-shaped, forming two wire legs. There is a Z-shaped bend at the connecting line of the two wire legs, and then the connection between the two wire legs will be bent and deformed again on the basis of the Z-shaped bend to form a specific shape according to needs, that is, 3D bending. In the existing technology, most of the cutting and forming are done manually, which not only has low work efficiency, but also is prone to problems with poor bending accuracy. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a hairpin forming equipment for new energy flat wire motors, which processes the enameled wire into a flat copper wire through a blanking device, and then forms the flat copper wire into a hairpin through a forming device. There is no need for manual cutting, blanking and flat copper wire forming, which improves work efficiency and bending accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A card forming device for a new energy flat wire motor, comprising a blanking device, the blanking device is used to remove the paint skin, straighten and cut the enameled wire to form a flat copper wire;

[0006] and a forming device, the forming device being used to form the flat copper wire formed by the blanking device into a hairpin wire;

[0007] The forming device comprises a first forming mechanism, and the first forming mechanism is used to fold the flat copper wire into a U-shaped copper wire;

[0008] a second forming mechanism, the second forming mechanism being used to form a Z-shaped structure at the end of the U-shaped copper wire;

[0009] and a third forming mechanism, wherein the third forming mechanism is used to perform 3D bending on the end of the U-shaped copper wire.

[0010] The present invention is further configured as follows: the first forming mechanism comprises a positioning assembly, the positioning assembly is used to clamp the flat copper wire and position one end of the flat copper wire;

[0011] and a forming assembly, the forming assembly being used to bend the flat copper wire positioned and clamped by the positioning assembly into a U-shaped copper wire;

[0012] The forming assembly comprises a bending plate, one end of which is formed with a forming surface matching the shape of the bending part of the U-shaped copper wire;

[0013] A rotating seat, the rotating seat rotates around a vertical axis;

[0014] And a folding line shaft, which is rotatably connected to the rotating seat and the rotating axis is vertical, and the axis of the folding line shaft is located on one side of the rotating axis of the rotating seat so that the flat copper wire can be pushed to fold into a U-shaped copper wire through the folding line shaft when the rotating seat rotates.

[0015] The present invention is further configured as follows: the positioning assembly comprises a clamping block, two of the clamping blocks are provided and the two clamping blocks can be close to each other and mutually closed in a horizontal direction to achieve clamping and loosening of the flat copper wire from both sides;

[0016] And a reference block, which is located on the side of the two clamping blocks away from the forming assembly, and is used to position the end of the flat copper wire.

[0017] The present invention is further configured as follows: the positioning assembly further comprises a clamping cylinder, the clamping cylinder is configured as a double-claw cylinder, two clamping blocks are respectively fixedly connected to two clamping claws of the clamping cylinder, and the reference block is fixed to the cylinder body of the clamping cylinder;

[0018] And a telescopic power piece, which is arranged as a linear module, and is used to drive the clamping cylinder to slide along a horizontal straight line so as to enable the clamping cylinder to approach and move away from the forming component.

[0019] The present invention is further configured as follows: the forming assembly further comprises a forming seat, the bending plate is fixedly connected to the top of the forming seat, and the forming surface on the bending plate is located at an end of the bending plate away from the positioning assembly;

[0020] A fixed support, the fixed support is fixedly connected to the bottom of the forming seat;

[0021] And a sliding table, which is arranged on a fixed support and can slide up and down on the fixed support, the rotating seat is rotatably connected to the top of the fixed support, and the forming seat is provided with a clearance hole which vertically penetrates the forming seat so that the rotating seat can move upward to the bending plate.

[0022] The present invention is further configured as follows: the second molding mechanism comprises a die pressing finger, wherein two die pressing fingers are provided, and the two die pressing fingers are close to or in contact with each other in a vertical direction;

[0023] And the forming dies, the forming dies are provided with four, the four forming dies are grouped in pairs, the two forming dies in the same group are respectively fixedly connected to the two sides where the two die fingers are close to each other, when the two die fingers are close to each other and the two forming dies in the same group are fitted to each other, the heights of the two groups of forming dies at the mold joints are different.

[0024] The present invention is further configured as follows: the third molding mechanism comprises an upper mold, and the upper mold can move in a vertical direction;

[0025] and a lower die, the lower die being arranged below the upper die and having a fixed position;

[0026] The upper die moves downward and achieves 3D bending of the U-shaped copper wire by cooperating with the lower die.

[0027] The present invention is further configured as follows: the unloading device comprises a wire unwinding mechanism, and the wire unwinding mechanism is used to unwind the enameled wire coil;

[0028] A straightening mechanism, wherein the straightening mechanism is used to straighten the enameled wire after unwinding;

[0029] A paint removal mechanism, which is used to remove the paint on the surface of the enameled wire after straightening to expose the copper wire;

[0030] A wire pulling mechanism, which is used to drive the copper wire to move at the same speed;

[0031] And a cutting mechanism, which is used for cutting the copper wire pushed forward by the wire pulling mechanism.

[0032] The present invention is further configured as follows: the wire pulling mechanism comprises two wire pulling assemblies, the two wire pulling assemblies are respectively configured as a front wire pulling assembly and a rear wire pulling assembly, the two wire pulling assemblies have the same structure and are arranged along the transmission direction of the copper wire;

[0033] The wire pulling assembly comprises a wire pulling seat, and the wire pulling seat can slide along the transmission direction of the copper wire;

[0034] and a clamping member, the clamping member is used to clamp the copper wire passing through the wire drawing assembly, when the wire drawing seat slides in a direction away from the wire releasing mechanism, the clamping member clamps the copper wire, and when the wire drawing seat slides in a direction close to the wire releasing mechanism, the clamping member releases the clamping of the copper wire;

[0035] At least one of the two wire pulling assemblies slides in a direction away from the wire releasing mechanism at the same time, and the two wire pulling assemblies slide in a direction away from the wire releasing mechanism at the same speed.

[0036] The present invention is further configured as follows: the paint removal mechanism is provided with two, namely a horizontal paint removal mechanism and a vertical paint removal mechanism;

[0037] The paint removal mechanism includes a fixed die, which is supported on one side of the copper wire;

[0038] A movable mold, wherein the movable mold can slide in a direction perpendicular to the contact side of the copper wire with the fixed mold to limit the copper wire between the movable mold and the fixed mold;

[0039] and a paint stripping knife, wherein the paint stripping knife can slide in a direction parallel to the sliding direction of the movable mold, an opening capable of accommodating the copper wire is provided on a side of the paint stripping knife close to the copper wire, and blades of the paint stripping knife are provided on both sides of the opening;

[0040] The movable die of the transverse paint removal mechanism slides in the vertical direction, and the sliding direction of the movable die of the longitudinal paint removal mechanism is horizontal and perpendicular to the copper wire transmission direction.

[0041] In summary, compared with the prior art, the present invention has the following beneficial effects: the present invention processes the enameled wire into a flat copper wire through a blanking device, and then forms the flat copper wire into a hairpin by a forming device, without the need for manual cutting and blanking and forming of the flat copper wire, thereby improving work efficiency and bending accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0043] Figure 2 is a schematic diagram of a wire-releasing mechanism of an embodiment;

[0044] Figure 3 is a schematic diagram of a straightening mechanism of an embodiment;

[0045] Figure 4 is a schematic diagram of a paint removal mechanism of an embodiment;

[0046] Figure 5 is a cross-sectional view of a paint removal mechanism of an embodiment;

[0047] Figure 6 for Figure 5 A magnified schematic diagram of part A;

[0048] Figure 7 is a schematic diagram of a wire pull assembly of an embodiment;

[0049] Figure 8 is a cross-sectional view of a wire pull assembly of an embodiment;

[0050] Fig. 9 is a schematic diagram of a cutting mechanism of an embodiment;

[0051] Fig.10 is a cross-sectional view of a cutting mechanism of an embodiment;

[0052] Fig.11 for Fig.10 An enlarged schematic diagram of part B;

[0053] Fig.12 is a schematic diagram of a first molding mechanism of an embodiment;

[0054] Fig.13 for Fig.12 An enlarged schematic diagram of part C of FIG.

[0055] Fig.14 A schematic diagram of a positioning assembly is shown in an embodiment;

[0056] Fig.15 for Fig.14 An enlarged schematic diagram of the D portion;

[0057] Fig.16 is a schematic diagram of a molding mechanism of an embodiment;

[0058] Fig.17 is a schematic diagram of a second molding mechanism of the embodiment;

[0059] Fig.18 is a schematic diagram of a third forming mechanism of the embodiment;

[0060] Fig.19 for Fig.18 Enlarged schematic diagram of part E of .

[0061] In the figure: 1, feeding device; 11, wire release mechanism; 111, base; 112, support wheel group; 1121, support shaft; 1122, support wheel; 113, balance seat; 114, balance wheel; 115, tensioner; 116, slide rail; 12, straightening mechanism; 121, first straightening wheel group; 122, second straightening wheel group; 13, paint removal mechanism; 131, paint removal seat; 132, Lifting seat; 133, fixed mold; 134, movable mold; 135, paint stripping rod; 136, floating seat; 137, paint stripping knife; 1371, knife seat; 14, wire pulling mechanism; 140, wire pulling assembly; 141, wire pulling seat; 142, clamping piece; 1421, wire supporting block; 1422, wire pressing block; 1423, guide block; 15, cutting mechanism; 151, cutting seat; 152, sliding seat; 153. Cutting upper die; 154. Cutting lower die; 155. Cutting rod; 156. Pressing block; 157. Cutting knife; 2. Forming device; 21. First forming mechanism; 211. Positioning assembly; 2111. Clamping block; 2112. Reference block; 212. Forming assembly; 2121. Wire-folding axis; 2122. Forming seat; 2123. Wire-supporting plate; 2124. Bending plate; 21241. Positioning groove; 2125. Wire-pressing plate; 2126. Fixed support; 2127. Rotating seat; 2128. Sliding table; 22. Second forming mechanism; 221. Pressing die finger; 222. Forming die; 223. Positioning seat; 224. Reference plate; 225. Support seat; 226. Scale; 227. Indicator needle; 23. Third forming mechanism; 231. Upper die; 232. Lower die. DETAILED DESCRIPTION

[0062] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0063] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0064] Embodiment: A card forming device for a new energy flat wire motor, see attached Figure 1 -Attached Fig.19 , including a feeding device 1 and a forming device 2, wherein the feeding device 1 is used to remove the paint, straighten and cut the enameled wire to form a flat copper wire; the forming device 2 is used to form the flat copper wire formed by the feeding device 1 to form a hairpin wire.

[0065] The unloading device 1 includes a wire unwinding mechanism 11, a straightening mechanism 12, a paint removing mechanism 13, a wire pulling mechanism 14 and a cutting mechanism 15. The wire unwinding mechanism 11 is used to unwind the enameled wire roll; the straightening mechanism 12 is used to straighten the enameled wire after unwinding; the paint removing mechanism 13 is used to remove the paint on the surface of the enameled wire after straightening to expose the copper wire; the wire pulling mechanism 14 is used to drive the copper wire to move at the same speed; the cutting mechanism 15 is used to cut the copper wire pushed forward by the wire pulling mechanism 14.

[0066] After the enameled wire is unwound at the unwound mechanism 11, it is first straightened by the straightening mechanism 12, and then enters the paint removal mechanism 13 to remove the paint. The exposed copper wire passes through the wire pulling mechanism 14 and then enters the cutting mechanism 15 to be cut according to the predetermined length. The wire pulling mechanism 14 provides power for the movement of the copper wire between the mechanisms.

[0067] The wire unwinding mechanism 11 comprises a base 111 and a support wheel 1122 group 112, wherein the position of the base 111 is fixed; two support wheels 1122 groups 112 are provided, and the enameled wire roller is supported on the two support wheels 1122 groups 112, and at least one support wheel 1122 group 112 of the two support wheels 1122 groups 112 is set as an active support wheel 1122 group 112; the support wheel 1122 group 112 comprises a support shaft 1121 and a support wheel 1122, wherein the support shaft 1121 is rotatably connected to the base 111, and the support shafts 1121 of the two support wheels 1122 groups 112 are parallel to each other; two support wheels 1122 are fixedly connected to each support shaft 1121, and the two sides of the bottom of the enameled wire roller are respectively supported on the support wheels 1122 of the two support wheels 1122 groups 112. The rotation of the support shaft 1121 can drive the enameled wire roller to rotate, thereby driving the enameled wire on the enameled wire roller to unwind.

[0068] Specifically, the wire pulling mechanism 14 includes two wire pulling assemblies 140, and the two wire pulling assemblies 140 are respectively arranged as a front wire pulling assembly 140 and a rear wire pulling assembly 140. The two wire pulling assemblies 140 have the same structure and are arranged along the transmission direction of the copper wire; the wire pulling assembly 140 includes a wire pulling seat 141 and a clamping member 142, and the wire pulling seat 141 can slide along the transmission direction of the copper wire; the clamping member 142 is used to clamp the copper wire passing through the wire pulling assembly 140, and when the wire pulling seat 141 slides in a direction away from the wire releasing mechanism 11, the clamping member 142 clamps the copper wire, and when the wire pulling seat 141 slides in a direction close to the wire releasing mechanism 11, the clamping member 142 releases the clamping of the copper wire; at least one of the two wire pulling assemblies 140 slides in a direction away from the wire releasing mechanism 11 at the same time, and the two wire pulling assemblies 140 slide in a direction away from the wire releasing mechanism 11 at the same speed.

[0069] When the front wire pulling mechanism 14 drives the copper wire to slide toward the direction close to the cutting mechanism 15, the rear wire pulling mechanism 140 slides toward the direction away from the cutting mechanism 15. When the rear wire pulling mechanism 14 slides toward the direction close to the cutting mechanism 15, the front wire pulling mechanism 14 slides toward the direction away from the cutting mechanism 15, so that the copper wire can always maintain a uniform forward transmission.

[0070] Specifically, the unwinding mechanism 11 also includes a balancing seat 113, a balancing wheel 114 and a tensioning member 115. The balancing seat 113 can slide along the transmission direction of the copper wire; the balancing wheel 114 is rotatably connected to the balancing seat 113, and the enameled wire unwound from the enameled wire reel is passed through the balancing wheel 114 away from the side of the straightening mechanism 12 and then transferred from the top of the balancing wheel 114 to the straightening mechanism 12; the tensioning member 115 applies a pulling force to the balancing seat 113 in the direction away from the straightening mechanism 12, and the unwinding speed of the enameled wire is greater than the moving speed of the wire pulling mechanism 14 pulling the copper wire. A slide rail 116 is provided on the top of the base 111 for the balance seat 113 to slide. When the enameled wire roll is unwinding, the speed of unwinding the enameled wire roll is greater than the speed of the wire pulling mechanism 14 pulling the copper wire to move. Therefore, under the action of the tensioning member 115, the balance seat 113 gradually moves toward the end of the slide rail 116 away from the wire pulling mechanism 14. During this process, due to the existence of the tensioning member 115, the copper wire is in a tensioned state. When the balance seat 113 approaches the end of the slide rail 116 away from the wire pulling mechanism 14, the enameled wire roll stops unwinding. At this time, under the action of the wire pulling mechanism 14, the balance seat 113 slides toward the end of the slide rail 116 close to the wire pulling mechanism 14. During this process, the copper wire remains in a tensioned state. When the balance seat 113 approaches the end of the slide rail 116 close to the wire pulling mechanism 14, the enameled wire roll starts unwinding again. Through the above arrangement, the enameled wire can always remain in a tensioned state during the unwinding process.

[0071] Specifically, the tensioning member 115 in the line-releasing mechanism 11 can be configured as an elastic member, such as a spring.

[0072] Specifically, the clamping member 142 includes a wire supporting block 1421 and a wire pressing block 1422. The wire supporting block 1421 is fixedly connected to the wire pulling seat 141; the wire pressing block 1422 is arranged above the wire supporting block 1421 and can move up and down. When the wire pressing block 1422 is close to the wire supporting block 1421, it can press the copper wire against the wire supporting block 1421.

[0073] Specifically, a sink groove for the copper wire to pass through is provided on the top of the wire supporting block 1421, and the wire pressing block 1422 can enter the sink groove from top to bottom to press the copper wire tightly in the sink groove.

[0074] Specifically, the clamping member 142 also includes a guide block 1423 , in which a guide hole vertically penetrating the guide block 1423 is provided, and the wire pressing block 1422 vertically passes through the guide hole to guide the vertical sliding direction of the wire pressing block 1422 through the guide block 1423 .

[0075] Specifically, each wire pulling assembly 140 includes two clamping members 142 , and the two clamping members 142 are arranged along the transmission direction of the copper wire.

[0076] Specifically, two paint removal mechanisms 13 are provided, namely, a horizontal paint removal mechanism 13 and a longitudinal paint removal mechanism 13; the paint removal mechanism 13 includes a fixed mold 133, a movable mold 134 and a paint removal knife 137, wherein the fixed mold 133 is supported on one side of the copper wire; the movable mold 134 can slide in a direction perpendicular to the contact side of the copper wire with the fixed mold 133 to limit the copper wire between the movable mold 134 and the fixed mold 133; the paint removal knife 137 can slide in a direction parallel to the sliding direction of the movable mold 134, and an opening capable of accommodating the copper wire is provided on the side of the paint removal knife 137 close to the copper wire, and the blades of the paint removal knife 137 are provided on both sides of the opening; The movable mold 134 of the horizontal paint removing mechanism 13 slides in the vertical direction, that is, when the paint removing knife 137 of the horizontal paint removing mechanism 13 clamps the copper wire at the opening, the blade can be moved to both sides of the copper wire transmission direction, so as to scrape off the paint on both sides of the copper wire; the sliding direction of the movable mold 134 of the longitudinal paint removing mechanism 13 is horizontal and perpendicular to the copper wire transmission direction, that is, when the paint removing knife 137 of the longitudinal paint removing mechanism 13 clamps the copper wire at the opening, the blade can be moved to the top and bottom of the copper wire, so as to remove the paint from the top and bottom of the copper wire, so that the paint removal of the four sides of the copper wire can be achieved through two paint removing mechanisms 13.

[0077] Specifically, the paint stripping mechanism 13 also includes a paint stripping seat 131, a lifting seat 132, and a paint stripping rod 135. The lifting seat 132 can slide on the paint stripping seat 131 along the sliding direction of the movable mold 134, and the fixed mold 133 is fixedly connected to the paint stripping seat 131; the paint stripping rod 135 is fixedly connected to the lifting seat 132 on the side close to the movable mold 134 and the length direction of the paint stripping rod 135 is arranged along the sliding direction of the lifting seat 132, and the paint stripping knife 137 is connected to the end of the paint stripping rod 135 close to the fixed mold 133 through the knife seat 1371; the paint stripping rod 135 is outerly provided with a floating seat 136 that can slide on the paint stripping rod 135 along the length direction of the paint stripping rod 135, and a spring is arranged between the floating seat 136 and the lifting seat 132 and is sleeved on the outside of the paint stripping rod 135, and the movable mold 134 is fixedly connected to the floating seat 136 on the side close to the fixed mold 133. When the lifting seat 132 slides toward the direction approaching the fixed mold 133, the movable mold 134 contacts the copper wire first, and the paint stripping knife 137 contacts the copper wire later.

[0078] Specifically, the paint stripping seat 131 can slide along the transmission direction of the copper wire.

[0079] Specifically, the straightening mechanism 12 includes a first straightening wheel group 121 and a second straightening wheel group 122. The first straightening wheel group 121 includes two groups of first straightening wheels respectively located at the top and bottom of the enameled wire, and multiple first straightening wheels in the same group are arranged along the transmission direction of the enameled wire, and the axis of the first straightening wheel is horizontal and perpendicular to the transmission direction of the enameled wire; the second straightening wheel group 122 includes two groups of second straightening wheels respectively located on both sides of the transmission direction of the enameled wire, and multiple second straightening wheels in the same group are arranged along the transmission direction of the enameled wire, and the axis of the second straightening wheel is vertical and perpendicular to the transmission direction of the enameled wire.

[0080] Specifically, the cutting mechanism 15 includes a cutting lower die 154 and a cutting knife 157. The cutting lower die 154 is supported at the bottom of the copper wire; the cutting knife 157 can slide up and down in the vertical direction to cooperate with the cutting lower die 154 to cut the copper wire under the action of shear force. The cutting mechanism 15 also includes a cutting seat 151, a sliding seat 152, a cutting rod 155, a pressing block 156 and a cutting upper die 153. The sliding seat 152 is arranged above the cutting lower die 154 and can move up and down. The cutting rod 155 is fixedly connected to the bottom of the sliding seat 152 and is vertically arranged. The cutting knife 157 is fixedly connected to one end of the bottom of the cutting rod 155; the pressing block 156 is sleeved outside the cutting rod 155 and can slide up and down outside the cutting rod 155. A spring sleeved outside the cutting rod 155 is arranged between the pressing block 156 and the sliding seat 152. The cutting upper die 153 is fixedly connected to the bottom of the pressing block 156. When the sliding seat 152 moves downward, the pressing block 156 first contacts the copper wire on the cutting lower die 154.

[0081] Specifically, the up and down movement of the sliding seat 152 and the lifting seat 132 can be achieved by a cylinder, an oil cylinder, or a lead screw.

[0082] Specifically, the unloading device 1 also includes a waste collection mechanism, which is configured as a dust collection device. The negative pressure fan extends through a pipeline to the horizontal paint removal mechanism 13 and the longitudinal paint removal mechanism 13, thereby absorbing the paint film generated during the paint removal process.

[0083] The forming device 2 includes a first forming mechanism 21, a second forming mechanism 22 and a third forming mechanism 23. The first forming mechanism 21 is used to fold the flat copper wire into a U-shaped copper wire; the second forming mechanism 22 is used to form a Z-shaped structure at the end of the U-shaped copper wire; the third forming mechanism 23 is used to perform a D-bend on the end of the U-shaped copper wire.

[0084] When the flat copper wire is being formed, the operator sequentially feeds the flat copper wire into the first forming mechanism 21, the second forming mechanism 22 and the third forming mechanism 23. The three forming mechanisms deform the flat copper wire three times at a time without manual forming, thereby improving the forming efficiency and accuracy.

[0085] Specifically, the first forming mechanism 21 includes a positioning component 211 and a forming component 212, wherein the positioning component 211 is used to clamp the flat copper wire and position one end of the flat copper wire; the forming component 212 is used to bend the flat copper wire positioned and clamped by the positioning component 211 into a U-shaped copper wire. The forming component 212 includes a bending plate 2124, a rotating seat 2127, and a folding line shaft 2121, wherein one end of the bending plate 2124 is formed with a forming surface matching the shape of the bending part of the U-shaped copper wire; the rotating seat 2127 rotates around a vertical axis; the folding line shaft 2121 is rotatably connected to the rotating seat 2127 and the rotating axis is vertical, and the axis of the folding line shaft 2121 is located on one side of the rotating axis of the rotating seat 2127 so that when the rotating seat 2127 rotates, the flat copper wire is pushed to be folded into a U-shaped copper wire through the folding line shaft 2121.

[0086] When the flat copper wire is folded into a U shape, the positioning assembly 211 is used to clamp the flat copper wire and position one end of the flat copper wire. At this time, the folding position of the flat copper wire is located at the forming surface of the bending plate 2124. Then, the rotating seat 2127 rotates, and the folding line shaft 2121 on the rotating shaft pushes the flat copper wire to fold into a U shape around the forming surface of the bending plate 2124. The folding line shaft 2121 is set to be rotatably connected to the rotating seat 2127, so that when the folding line shaft 2121 contacts the flat copper wire, no friction occurs, and it is not easy to wear the surface of the flat copper wire.

[0087] Specifically, a positioning groove 21241 penetrating the bending plate 2124 along the length direction of the flat copper wire is provided on the top of the bending plate 2124 , and the forming surface is located on the side of the positioning groove 21241 facing the bending direction of the flat copper wire.

[0088] Specifically, the positioning assembly 211 includes a clamping block 2111 and a reference block 2112. The clamping blocks 2111 are provided with two, and the two clamping blocks 2111 can approach each other and interlock with each other in the horizontal direction to achieve clamping and loosening of the flat copper wire from both sides; the reference block 2112 is located on the side of the two clamping blocks 2111 away from the forming assembly 212, and the reference block 2112 is used to position the end of the flat copper wire. When clamping and positioning the flat copper wire, the two clamping blocks 2111 are approached to each other to achieve clamping of the flat copper wire, and because the position of the reference block 2112 is fixed, one end of the flat copper wire is pressed against the side of the reference block 2112 close to the bending plate 2124, so that the bending part of the flat copper wire can be accurately aligned with the forming surface.

[0089] Specifically, the positioning assembly 211 also includes a wire clamping cylinder and a telescopic power piece. The wire clamping cylinder is configured as a double-claw cylinder, and two clamping blocks 2111 are respectively fixedly connected to the two clamping claws of the wire clamping cylinder, and the reference block 2112 is fixed on the cylinder body of the wire clamping cylinder; the telescopic power piece is configured as a linear module, and the telescopic power piece is used to drive the wire clamping cylinder to slide along a horizontal straight line to achieve the wire clamping cylinder approaching and moving away from the forming assembly 212. The wire clamping cylinder is configured as a double-claw cylinder, so that the two clamping claws can drive the two clamping blocks 2111 to slide toward or away from each other at a constant speed, so that the flat copper wire can be inserted into the positioning groove 21241 of the bending plate 2124 after being clamped. By configuring the telescopic power piece, the position of the reference block 2112 can be adjusted according to different flat copper wires, so that flat copper wires of different lengths can be bent.

[0090] Specifically, the forming assembly 212 also includes a forming seat 2122, a fixed support 2126 and a sliding table 2128. The bending plate 2124 is fixedly connected to the top of the forming seat 2122, and the forming surface on the bending plate 2124 is located at the end of the bending plate 2124 away from the positioning assembly 211; the fixed support 2126 is fixedly connected to the bottom of the forming seat 2122; the sliding table 2128 is arranged on the fixed support 2126 and can slide up and down on the fixed support 2126, the rotating seat 2127 is rotatably connected to the top of the fixed support 2126, and the forming seat 2122 is provided with a makeshift hole vertically penetrating the forming seat 2122 for the rotating seat 2127 to move upward to the bending plate 2124.

[0091] By setting the sliding table 2128, when the flat copper wire is fixed on the positioning assembly 211, the rotating seat 2127 and the folding line shaft 2121 can move downward to prevent the fixing of the flat copper wire from being blocked. After the flat copper wire is fixed, the sliding table 2128 drives the rotating seat 2127 and the folding line shaft 2121 to move upward to achieve bending of the flat copper wire. The sliding table 2128 is driven by the linear module to slide up and down on the fixed support 2126.

[0092] Specifically, the forming assembly 212 also includes a wire pressing plate 2125 and a wire supporting plate 2123. The wire pressing plate 2125 is arranged on the top of the forming seat 2122 and can slide on the forming seat 2122 in a horizontal direction. The wire pressing plate 2125 can move to the top of the flat copper wire by sliding, and the wire pressing plate 2125 slides from the side of the flat copper wire facing away from the bending direction toward the flat copper wire; the wire supporting plate 2123 is fixedly connected to the top of the forming seat 2122 and is located on the side of the bending plate 2124 away from the wire pressing plate 2125 to support and limit the bent flat copper wire.

[0093] By providing the wire pressing plate 2125 and the wire supporting plate 2123 , the flat copper wire can be prevented from being deformed in the vertical direction during the bending process, thereby further improving the quality of the bending forming.

[0094] Specifically, the second molding mechanism 22 includes a die finger 221 and a forming die. There are two die fingers 221, and the two die fingers 221 are close to or in opposition to each other in the vertical direction; there are four forming dies 222, and the four forming dies 222 are grouped in pairs. The two forming dies 222 in the same group are respectively fixedly connected to the two sides of the two die fingers 221 that are close to each other. When the two die fingers 221 are close to each other and the two forming dies 222 in the same group are in contact with each other, the heights of the two groups of forming dies 222 at the mold closing point are different.

[0095] The forming die 222 with different heights at the two combined dies can be bent into a Z-shape at the end of the U-shaped copper wire, that is, the connecting section between the two wire legs of the U-shaped copper wire. Specifically, the two die fingers 221 are driven to move by a double-claw cylinder and the two die fingers 221 are respectively fixedly connected to the two clamping jaws of the double-claw cylinder.

[0096] Specifically, the second molding mechanism 22 also includes a positioning seat 223 and a reference plate 224. The positioning seat 223 is arranged on one side of the opening of the two die fingers 221; the reference plate 224 is fixedly connected to the top of the positioning seat 223 to position the wire feet on one side of the U-shaped copper wire.

[0097] By setting the reference plate 224, one of the wire legs is positioned, thereby positioning the bending part of the U-shaped copper wire.

[0098] Specifically, the second molding mechanism 22 further includes a support seat 225, a scale 226 and an indicator needle 227. The positioning seat 223 can slide in the horizontal direction on the support seat 225, and the sliding direction of the positioning seat 223 is parallel to the arrangement direction of the two sets of molding dies 222; the scale 226 is fixedly connected to one side of the support seat 225; the indicator needle 227 is fixedly connected to the positioning seat 223 and is used to indicate the scale on the scale 226. Through the sliding of the positioning seat 223 on the support seat 225, the position of the reference plate 224 can be adjusted according to the U-shaped copper wires of different sizes, and the setting of the scale 226 and the indicator needle 227 makes the adjustment of the position of the reference plate 224 more accurate.

[0099] Specifically, the third forming mechanism 23 includes an upper die 231 and a lower die 232, wherein the upper die 231 can move in the vertical direction; the lower die 232 is arranged below the upper die 231 and is fixed in position; the upper die 231 moves downward and realizes the D-bending of the U-shaped copper wire by cooperating with the lower die 232. The lower die 232 is provided with a groove that cooperates with one of the downwardly protruding indentations after the Z-shaped bending of the end of the U-shaped copper wire, thereby facilitating the positioning of the U-shaped copper wire.

[0100] Specifically, the upper mold 231 is driven by a cylinder or a hydraulic cylinder to move up and down.

[0101] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A card forming device for a new energy flat wire motor, characterized in that: The invention comprises a feeding device (1), wherein the feeding device (1) is used for removing the paint coating, straightening and cutting the enameled wire to form a flat copper wire; and a forming device (2), wherein the forming device (2) is used to form the flat copper wire formed by the blanking device (1) into a hairpin wire; The forming device (2) comprises a first forming mechanism (21), wherein the first forming mechanism (21) is used to fold the flat copper wire into a U-shaped copper wire; A second forming mechanism (22), the second forming mechanism (22) being used to form a Z-shaped structure at the end of the U-shaped copper wire; and a third forming mechanism (23), wherein the third forming mechanism (23) is used to perform 3D bending on the end of the U-shaped copper wire; The first forming mechanism (21) comprises a positioning component (211), and the positioning component (211) is used to clamp the flat copper wire and position one end of the flat copper wire; and a forming assembly (212), wherein the forming assembly (212) is used to bend the flat copper wire positioned and clamped by the positioning assembly (211) into a U-shaped copper wire; The forming component (212) comprises a bending plate (2124), one end of the bending plate (2124) being formed with a forming surface matching the shape of a bending portion of the U-shaped copper wire; A rotating seat (2127), wherein the rotating seat (2127) rotates around a vertical axis; and a folding line shaft (2121), wherein the folding line shaft (2121) is rotatably connected to the rotating seat (2127) and the rotating axis is vertical, and the axis of the folding line shaft (2121) is located on one side of the rotating axis of the rotating seat (2127) so that when the rotating seat (2127) rotates, the folding line shaft (2121) can push the flat copper wire to be folded into a U-shaped copper wire.

2. The card forming equipment for a new energy flat wire motor according to claim 1 is characterized in that: The positioning assembly (211) comprises a clamping block (2111), two of the clamping blocks (2111) are provided, and the two clamping blocks (2111) can move closer to and farther from each other in a horizontal direction to achieve clamping and loosening of the flat copper wire from both sides; and a reference block (2112), wherein the reference block (2112) is located on a side of the two clamping blocks (2111) away from the forming assembly (212), and the reference block (2112) is used to position the end of the flat copper wire.

3. The card forming device for a new energy flat wire motor according to claim 2 is characterized in that: The positioning assembly (211) further comprises a wire clamping cylinder, wherein the wire clamping cylinder is configured as a double-claw cylinder, wherein two clamping blocks (2111) are respectively fixedly connected to two clamping claws of the wire clamping cylinder, and the reference block (2112) is fixed to a cylinder body of the wire clamping cylinder; and a telescopic power member, wherein the telescopic power member is arranged as a linear module and is used to drive the clamping cylinder to slide along a horizontal straight line so as to enable the clamping cylinder to approach and move away from the forming component (212).

4. The card forming device for a new energy flat wire motor according to claim 3 is characterized in that: The molding assembly (212) further comprises a molding seat (2122), the bending plate (2124) is fixedly connected to the top of the molding seat (2122), and the molding surface on the bending plate (2124) is located at an end of the bending plate (2124) away from the positioning assembly (211); A fixed support (2126), wherein the fixed support (2126) is fixedly connected to the bottom of the forming seat (2122); and a sliding platform (2128), wherein the sliding platform (2128) is arranged on the fixed support (2126) and can slide up and down on the fixed support (2126), the rotating seat (2127) is rotatably connected to the top of the fixed support (2126), and the forming seat (2122) is provided with a clearance hole vertically penetrating the forming seat (2122) so that the rotating seat (2127) can move upward to the bending plate (2124).

5. The card forming equipment for a new energy flat wire motor according to claim 1 is characterized in that: The second molding mechanism (22) comprises a die pressing finger (221), wherein two die pressing fingers (221) are provided, and the two die pressing fingers (221) are close to each other or away from each other in a vertical direction; And a molding die (222), wherein four molding dies (222) are provided, and the four molding dies (222) are grouped in pairs, and the two molding dies (222) in the same group are respectively fixedly connected to the two sides of the two die fingers (221) that are close to each other, and when the two die fingers (221) are close to each other and the two molding dies (222) in the same group are attached to each other, the heights of the two groups of molding dies (222) at the mold joint are different.

6. The card forming equipment for a new energy flat wire motor according to claim 1 is characterized in that: The third molding mechanism (23) comprises an upper mold (231), and the upper mold (231) is movable in a vertical direction; and a lower mold (232), wherein the lower mold (232) is arranged below the upper mold (231) and has a fixed position; The upper die (231) moves downward and achieves 3D bending of the U-shaped copper wire by cooperating with the lower die (232).

7. The card forming device for a new energy flat wire motor according to claim 1 is characterized in that: The unloading device (1) comprises a wire unwinding mechanism (11), and the wire unwinding mechanism (11) is used to unwind the enameled wire roll; A straightening mechanism (12), wherein the straightening mechanism (12) is used to straighten the enameled wire after unwinding; A paint removal mechanism (13), the paint removal mechanism (13) being used to remove the paint coating on the surface of the enameled wire after straightening to expose the copper wire; A wire pulling mechanism (14), wherein the wire pulling mechanism (14) is used to drive the copper wire to move at the same speed; And a cutting mechanism (15), wherein the cutting mechanism (15) is used to cut the copper wire pushed forward by the wire pulling mechanism (14).

8. The card forming device for a new energy flat wire motor according to claim 7 is characterized in that: The wire pulling mechanism (14) comprises two wire pulling assemblies (140), the two wire pulling assemblies (140) are respectively arranged as a front wire pulling assembly (140) and a rear wire pulling assembly (140), the two wire pulling assemblies (140) have the same structure and are arranged along the transmission direction of the copper wire; The wire pulling assembly (140) comprises a wire pulling seat (141), and the wire pulling seat (141) is capable of sliding along the transmission direction of the copper wire; and a clamping member (142), the clamping member (142) being used to clamp the copper wire passing through the wire drawing assembly (140); when the wire drawing seat (141) slides in a direction away from the wire releasing mechanism (11), the clamping member (142) clamps the copper wire; when the wire drawing seat (141) slides in a direction close to the wire releasing mechanism (11), the clamping member (142) releases the clamping of the copper wire; At least one of the two wire pulling assemblies (140) slides in a direction away from the wire releasing mechanism (11) at the same time, and the two wire pulling assemblies (140) slide in a direction away from the wire releasing mechanism (11) at the same speed.

9. The card forming device for a new energy flat wire motor according to claim 7 is characterized in that: The paint removal mechanism (13) is provided with two, namely a transverse paint removal mechanism (13) and a longitudinal paint removal mechanism (13); The paint removal mechanism (13) comprises a fixed die (133), wherein the fixed die (133) is supported on one side of the copper wire; A movable mold (134), wherein the movable mold (134) can slide in a direction perpendicular to a side of the copper wire in contact with the fixed mold (133) to limit the copper wire between the movable mold (134) and the fixed mold (133); and a paint stripping knife (137), wherein the paint stripping knife (137) can slide in a direction parallel to the sliding direction of the movable mold (134), an opening capable of accommodating the copper wire is provided on a side of the paint stripping knife (137) close to the copper wire, and blades of the paint stripping knife (137) are provided on both sides of the opening; The movable die (134) of the transverse paint removal mechanism (13) slides in a vertical direction, and the movable die (134) of the longitudinal paint removal mechanism (13) slides in a horizontal direction and perpendicular to the copper wire transmission direction.

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