A new energy motor special-shaped coil forming device

Abstract

The application relates to a new energy motor special-shaped coil forming device and belongs to the technical field of new energy motor processing. The device comprises a working panel, upper forming mechanisms and lower forming mechanisms are arranged on the upper and lower ends of the front surface of the working panel, a mold closing mechanism is arranged between the upper forming mechanisms and the lower forming mechanisms, a pair of side forming mechanisms are symmetrically arranged on the two sides of the mold closing mechanism, copper wire guide mechanisms, wire cutting mechanisms and shearing fixing mechanisms are sequentially arranged on the horizontal working plane corresponding to the mold closing mechanism from the inlet end to the fixed end; the mold closing mechanism comprises an openable and closable outer mold and an inner mold, the front surface of the inner mold is provided with an inner mold upper profiling convex edge, an inner mold side profiling convex edge and an inner mold lower profiling convex edge matched with the special-shaped coil finished product, the surface opposite to the inner mold of the outer mold is provided with an outer mold upper profiling convex edge matched with the inner mold upper profiling convex edge, and an outer mold mold closing cavity matched with the shape of the inner mold side profiling convex edge is arranged below the outer mold upper profiling convex edge.

Description

Technical Field

[0001] This invention relates to a device for forming irregular coils for new energy motors, belonging to the field of new energy motor processing technology. Background Technology

[0002] Currently, in the manufacturing of stator windings for new energy motors, it is necessary to install the coils into the stator coil slots. For stators of a specific shape, irregularly shaped coils are required. If the stamping of irregularly shaped coils is done manually, the efficiency will be low, and it will be time-consuming and labor-intensive.

[0003] In view of the above-mentioned shortcomings, the present invention aims to create a new energy motor irregular coil forming device, which makes it more valuable for industrial use. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to provide a device for forming irregular coils for new energy motors.

[0005] This invention discloses a new energy motor irregular coil forming device, comprising a working panel, with an upper forming mechanism and a lower forming mechanism respectively provided at the upper and lower ends of the front surface of the working panel, and a mold closing mechanism provided between the upper forming mechanism and the lower forming mechanism. A pair of side forming mechanisms are symmetrically arranged on both sides of the mold closing mechanism. On the horizontal working plane corresponding to the mold closing mechanism, a copper wire guiding mechanism, a wire cutting mechanism, and a cutting and fixing mechanism are arranged sequentially from the inlet end to the fixed end. The copper wire to be processed is guided through the copper wire guiding mechanism from the inlet end, passes through the wire cutting mechanism, the mold closing mechanism, and the cutting and fixing mechanism in sequence, and its end is pressed and fixed by the cutting and fixing mechanism, and then cut by the wire cutting mechanism to obtain a copper wire of a length that can be processed into an irregular coil finished product.

[0006] The mold closing mechanism includes an openable outer mold and an inner mold. The front surface of the inner mold is provided with an upper contouring flange, a side contouring flange, and a lower contouring flange that match the shape of the irregular coil product. The surface of the outer mold opposite to the inner mold is provided with an upper contouring flange that matches the upper contouring flange of the inner mold. Below the upper contouring flange of the outer mold is a mold closing cavity that matches the shape of the side contouring flange of the inner mold. In actual use, after the outer mold and inner mold are closed, the upper contouring protrusion of the inner mold and the upper contouring protrusion of the outer mold close together to form the forming mold surface of the upper outer V-shaped segment and the upper inner V-shaped segment in the irregular coil finished product. After the inner mold side contouring protrusion and the inner mold lower contouring protrusion are inserted into the outer mold closing cavity, due to the limiting of the upper contouring protrusion of the inner mold and the upper contouring protrusion of the outer mold, a section of the inner mold side contouring protrusion and the inner mold lower contouring protrusion will be reserved. The reserved inner mold side contouring protrusion forms the forming mold surface of the right outer vertical line segment, the left inner vertical line segment, the left outer vertical line segment and the right inner vertical line segment in the irregular coil finished product. At the same time, the reserved inner mold lower contouring protrusion forms the forming mold surface of the lower V-shaped segment in the irregular coil finished product.

[0007] The special-shaped coil product is a double-layer coil structure, which respectively comprises a lower V-shaped section at the bottom, a right outer vertical line section and a left inner vertical line section connected to the two sides of the lower V-shaped section, an upper outer V-shaped section and an upper inner V-shaped section connected to the top ends of the right outer vertical line section and the left inner vertical line section, and a left outer vertical line section and a right inner vertical line section connected to the other ends of the upper outer V-shaped section and the upper inner V-shaped section respectively.

[0008] Further, the upper and lower left and right edges of the upper and lower mold closing surfaces of the outer mold and the inner mold are respectively provided with a matched set of upper inclined surfaces of the outer mold and the inner mold, two matched sets of side inclined surfaces of the outer mold and the inner mold, and a matched set of lower inclined surfaces of the outer mold and the inner mold. Through the design of these matched inclined surfaces, the insertion molding of the upper molding mechanism, the lower molding mechanism and the side molding mechanism is limited, so that each molding mechanism can be accurately inserted into place to complete the coil profiling production.

[0009] Further, the back surface of the outer mold is drivingly connected to the output end of the outer mold driving cylinder, the outer mold driving cylinder is installed on the front surface of the working panel through the outer mold mounting plate, and a coil adjusting cylinder is also fixedly arranged on one side above the outer mold driving cylinder. An adjusting block is connected to the output end of the coil adjusting cylinder. In actual use, after the lower V-shaped section, the right outer vertical line section and the left inner vertical line section at the bottom and on both sides of the copper wire to be processed are stamped and formed, the left inner vertical line section is finely adjusted by the coil adjusting cylinder extending outward to drive the adjusting block, so that the left inner vertical line section moves inward and the right outer vertical line section moves outward, thereby facilitating the formation of a double-layer coil structure when the top of the copper wire to be processed is stamped.

[0010] Further, the back surface of the inner mold is drivingly connected to the output end of the inner mold driving cylinder, and the inner mold driving cylinder is installed on the back surface of the working panel through the inner mold mounting plate. In actual use, the inner mold and the outer mold are driven to move towards each other by the inner mold driving cylinder and the outer mold driving cylinder to achieve mold closing on the forming working surface. After the copper wire to be processed is stamped and formed into a special-shaped coil product, the inner mold and the outer mold are opened and retreated to the original position, and the special-shaped coil product falls through the collection slide rod to the coil collection mechanism for collection.

[0011] Further, the working panel is a cross-shaped plate structure, and an upper mounting plate, a lower mounting plate, a left mounting surface and a right mounting surface are sequentially arranged on the working panel in the up-down and left-right directions. The upper molding mechanism is installed on the upper mounting plate, the lower molding mechanism is installed on the lower mounting plate, and the side molding mechanisms are symmetrically installed on the left mounting surface and the right mounting surface respectively. A coil collection mechanism is also arranged in front of the working panel, and the coil collection mechanism is connected to the discharge end of the mold closing mechanism through a collection slide rod. The coil collection mechanism is used to collect the special-shaped coil products processed and formed.

[0012] Further, the shearing fixing mechanism comprises a shearing inlet end, a fixing inlet end and a fixing unit, the shearing inlet end is located at one side of the mold mechanism inlet, the fixing inlet end and the fixing unit are located at the other side of the mold mechanism, a horn-shaped inlet guide block is arranged on the top of the shearing inlet end, which is used for guiding the copper wire to be processed entering the mold mechanism, the fixing inlet end is located at the front end of the fixing unit, and a horn-shaped fixing guide block is arranged on the upper surface of the fixing inlet end.

[0013] Further, the fixing unit comprises a fixing support fixed on the surface of the workbench, a fixing base is arranged on the side wall of the fixing support, a fixing cylinder is further arranged at the position of the fixing support opposite to the fixing base, a fixing pressing block is connected to the output end of the fixing cylinder, an optical sensor is further arranged on the top of the fixing support and faces the fixing base, and the optical sensor is in signal connection with the fixing cylinder and the shearing mechanism. In actual work, when the optical sensor detects the copper wire to be processed extending into the fixing unit, detection signals are transmitted to the fixing cylinder and the shearing mechanism in sequence, the fixing pressing block is first driven by the fixing cylinder to extend forward to press and fix the copper wire to be processed on the fixing base, and then the shearing mechanism is started to shear the copper wire to be processed, so that the copper wire with the length of the finished product of the special-shaped coil can be obtained.

[0014] Further, the lower forming mechanism comprises left and right vertical slide rails arranged symmetrically on the surface of the workbench in the vertical direction, and a middle lower slide rail is arranged in the vertical direction at the middle position of the left and right vertical slide rails, left, right and middle lower forming blocks are slidably arranged on the surfaces of the left, right and middle lower slide rails respectively, and the bottoms of the left, right and middle lower forming blocks are in driving connection with the top output ends of left, right and middle lower forming cylinders in sequence.

[0015] The top end of the middle lower forming block is a middle lower forming tool bit, the middle lower forming tool bit is further provided with a middle lower tool bit profiling groove, and a middle lower forming slope is further arranged between the middle lower forming tool bit and the middle lower forming block body, and the size of the middle lower forming slope matches that of the outer mold lower slope and the inner mold lower slope. In actual use, the middle lower forming block is first driven upward by the middle lower forming cylinder, and the middle lower forming slope is matched with the outer mold lower slope and the inner mold lower slope, which saves the design space of the equipment on one hand, and the slope fitting plays a limiting effect on the other hand, so that the middle lower forming block can be accurately stopped after reaching the limited position, and the copper wire to be processed is punched to form a lower V-shaped section from the middle through the cooperation of the middle lower tool bit profiling groove and the inner mold lower profiling convex edge.

[0016] The left lower forming block and the right lower forming block are symmetrical to each other and arranged on the two sides of the middle lower forming block, and the left lower forming block and the right lower forming block are provided with lower forming tool bits on the side close to the middle lower forming block through lower forming inclined surfaces, and the lower forming tool bits are provided with lower forming guide arc edges at the top corners, which are used for guiding and protecting the copper wire during the stamping forming of the copper wire; and the lower forming inclined surfaces are matched with the outer mold side inclined surfaces and the inner mold side inclined surfaces. In actual work, when the lower V-shaped section is stamped and formed, the left lower forming cylinder and the right lower forming cylinder drive the left lower forming block and the right lower forming block to rise at the same time, and the outer mold side inclined surfaces and the inner mold side inclined surfaces and the lower forming inclined surfaces provide a guiding effect for the rising and falling process of the left lower forming block and the right lower forming block, improve the stability of the stamping forming, and finally stamp the right outer vertical line section and the left inner vertical line section at the two ends of the lower V-shaped section through the two symmetrical lower forming tool bits;

[0017] Further, each of the side forming mechanisms includes a sliding table cylinder which is slidably sleeved on a cylinder sliding rail in a horizontal direction, a forming mounting seat is fixedly connected to the sliding table cylinder through a connecting block below the sliding table cylinder, the forming mounting seat is slidably sleeved on the surface of a side moving sliding rail arranged horizontally, a side forming block is fixedly connected to the forming mounting seat in a horizontal direction, and a side forming tool bit is connected to the front section of the body of each side forming block through a side forming block inclined surface. The bottom of the side forming tool bit of the side forming mechanism mounted on the left mounting surface is provided with an inner side profiling edge, the bottom of the side forming tool bit of the side forming mechanism mounted on the right mounting surface is provided with an outer side profiling edge, and the two side forming block inclined surfaces are matched with two groups of outer mold side inclined surfaces and inner mold side inclined surfaces. Through the matched inclined surface design, the insertion forming of the side forming mechanism is limited, so that each forming mechanism can be accurately inserted into position to complete the coil profiling; in actual work, after the lower V-shaped section, the right outer vertical line section and the left inner vertical line section at the bottom and on both sides of the copper wire to be processed are stamped and formed, the left inner vertical line section is inwardly adjusted by the adjusting block driven by the outward extension of the coil adjusting cylinder, so that the left inner vertical line section moves inwardly and the right outer vertical line section moves outwardly, then the side forming mechanism is started, and the left inner vertical line section and the right outer vertical line section are horizontally stamped through the inner side profiling edge and the outer side profiling edge on the left side and the right side respectively, so that the top ends of the left inner vertical line section and the right outer vertical line section are cross-shaped, which is convenient for the final stamping forming of the upper forming mechanism;

[0018] Further, the upper forming mechanism comprises left and right vertical slide rails symmetrically arranged on the surface of the work panel in the vertical direction, and a middle upper slide rail is arranged in the middle position of the left and right vertical slide rails in the vertical direction, and a left upper forming block, a right upper forming block and a middle upper forming block are slidably arranged on the surfaces of the left and right vertical slide rails and the middle upper slide rail respectively, and the top of the left upper forming block, the right upper forming block and the middle upper forming block is sequentially and drivingly connected with the bottom output end of a left upper forming cylinder, a right upper forming cylinder and a middle upper forming cylinder respectively.

[0019] The bottom end of the middle upper forming block is a middle upper forming tool bit, and the end of the middle upper forming tool bit is crossly provided with an outer upper profiling groove and an inner upper profiling groove, and a middle upper forming block inclined surface is further arranged between the middle upper forming tool bit and the middle upper forming block body, and the size of the middle upper forming block inclined surface matches that of the outer upper inclined surface and the inner upper inclined surface; in actual use, the inner profiling edges and the outer profiling edges on the left and right sides of the side forming mechanism horizontally stamp the left inner vertical line segment and the right outer vertical line segment, and after the top ends of the left inner vertical line segment and the right outer vertical line segment are cross-formed, the upper forming mechanism is started, the middle upper forming block is driven to be pressed down by the middle upper forming cylinder, and the middle upper forming block inclined surface is matched with the outer upper inclined surface and the inner upper inclined surface, which on one hand saves the design space of the equipment, and on the other hand, through the matching of the inclined surface, the limiting effect is achieved, so that the middle upper forming block can be accurately stopped after reaching the limited position, and the cross right outer vertical line segment and the left inner vertical line segment are formed into an upper outer V-shaped segment and an upper inner V-shaped segment through the outer upper profiling groove and the inner upper profiling groove respectively cooperating with the outer upper profiling convex edge and the inner upper profiling convex edge.

[0020] The left upper forming block and the right upper forming block are symmetrically arranged on the left and right sides of the middle upper forming block and have the same shape, and the left upper forming block and the right upper forming block body are connected with an upper side forming tool bit through an upper side forming inclined surface on the side close to the middle upper forming block, and the upper side forming tool bit is provided with an upper side forming guide arc edge at the top corner, which is used for guiding and protecting the copper wire when stamping the unformed end of the upper outer V-shaped segment and the upper inner V-shaped segment; and the upper side forming inclined surface is matched with the outer side inclined surface and the inner side inclined surface. In actual work, after the outer V-shaped segment and the upper inner V-shaped segment are stamped and formed, the left upper forming cylinder and the right upper forming cylinder drive the left upper forming block and the right upper forming block to be pressed down respectively and simultaneously, and the outer side inclined surface and the inner side inclined surface and the upper side forming inclined surface provide a guiding effect for the ascending and descending process of the left upper forming block and the right upper forming block, improve the stability of the stamping and forming, and finally stamp the unformed end of the upper outer V-shaped segment and the upper inner V-shaped segment into the left outer vertical line segment and the right inner vertical line segment through the two symmetric upper side forming tool bits, so that the special-shaped coil product is obtained.

[0021] By the above scheme, the present application has at least the following advantages:

[0022] The new energy motor special-shaped coil forming device of the application can realize full-automatic punching forming of the special-shaped double-layer motor coil through linkage design of multiple mechanisms, has high operation precision, saves a large amount of manpower, greatly improves production efficiency, and has a wide application prospect.

[0023] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, and can be implemented according to the content of the specification, as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiment of the application, the following will briefly introduce the drawings needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the application, therefore should not be regarded as a limitation, for those skilled in the art, without creative labor, can also obtain other related drawings according to these drawings.

[0025] Figure 1 It is the integral structure schematic diagram of the new energy motor special-shaped coil forming device of the application;

[0026] Figure 2 It is the partial structure schematic diagram of the new energy motor special-shaped coil forming device of the application;

[0027] Figure 3 It is the shearing process structure schematic diagram of the new energy motor special-shaped coil forming device of the application;

[0028] Figure 4 It is the structure schematic diagram of the shearing fixing process of the new energy motor special-shaped coil forming device of the application;

[0029] Figure 5 It is the structure schematic diagram of the copper wire to be processed in the new energy motor special-shaped coil forming device of the application;

[0030] Figure 6 It is the structure schematic diagram of the die clamping mechanism in the new energy motor special-shaped coil forming device of the application;

[0031] Figure 7 It is the partial structure schematic diagram of the die clamping mechanism in the new energy motor special-shaped coil forming device of the application;

[0032] Figure 8 It is the partial structure schematic diagram of the die clamping mechanism in the new energy motor special-shaped coil forming device of the application;

[0033] Figure 9 It is the structure schematic diagram of the lower forming mechanism in the new energy motor special-shaped coil forming device of the application;

[0034] Figure 10 is a structural schematic view of the lower forming mechanism in the new energy motor special-shaped coil forming device of the present application;

[0035] Figure 11 is a partial structural schematic view of the lower forming mechanism in the new energy motor special-shaped coil forming device of the present application;

[0036] Figure 12 is a structural schematic view of the side forming mechanism in the new energy motor special-shaped coil forming device of the present application;

[0037] Figure 13 is a structural schematic view of the side forming block in the new energy motor special-shaped coil forming device of the present application;

[0038] Figure 14 is a structural schematic view of the side forming block in the new energy motor special-shaped coil forming device of the present application;

[0039] Figure 15 is a structural schematic view of the upper forming mechanism in the new energy motor special-shaped coil forming device of the present application;

[0040] Figure 16 is a partial structural schematic view of the upper forming mechanism in the new energy motor special-shaped coil forming device of the present application;

[0041] Figure 17 is a partial structural schematic view of the upper forming mechanism in the new energy motor special-shaped coil forming device of the present application.

[0042] In the figure:

[0043] 1, working panel; 2, upper forming mechanism; 3, lower forming mechanism; 4, side forming mechanism; 5, mold closing mechanism; 6, shearing fixing mechanism; 7, copper wire guide mechanism; 8, copper wire to be processed; 9, wire shearing mechanism; 10, coil collecting mechanism; 80, special-shaped coil product; 101, collecting slide rod;

[0044] 11, upper mounting plate; 12, lower mounting plate; 13, left side mounting surface; 14, right side mounting surface;

[0045] 61, shearing inlet end; 62, fixed inlet end; 63, fixed unit;

[0046] 611, inlet guide block; 621, fixed guide block; 631, fixed support; 632, fixed base; 633, fixed air cylinder; 634, fixed pressing block; 635, photoelectric sensor;

[0047] 81, lower V-shaped section; 82, right side outer vertical line section; 83, left side inner vertical line section; 84, upper outer V-shaped section; 85, upper inner V-shaped section; 86, left side outer vertical line section; 87, right side inner vertical line section;

[0048] 51, outer mold; 52, inner mold; 53, outer mold mounting plate; 54, outer mold driving cylinder; 55, coil adjusting cylinder; 56, adjusting block; 57, inner mold mounting plate; 58, inner mold driving cylinder;

[0049] 511, upper profiling ridge of outer mold; 512, outer mold closing cavity; 513, outer mold side bevel; 514, outer mold lower bevel; 515, outer mold upper bevel;

[0050] 521, upper profiling ridge of inner mold; 522, inner mold side profiling ridge; 523, inner mold lower profiling ridge; 524, inner mold side bevel; 525, inner mold lower bevel; 526, inner mold upper bevel;

[0051] 31, left vertical slide rail; 32, right vertical slide rail; 33, middle lower slide rail; 34, right lower forming cylinder; 35, left lower forming cylinder; 36, middle lower forming cylinder; 37, right lower forming block; 38, left lower forming block; 39, middle lower forming block;

[0052] 381, lower side forming bevel; 382, lower side forming tool head; 383, lower side forming guide arc edge;

[0053] 391, middle lower forming bevel; 392, middle lower forming tool head; 393, middle lower tool head profiling groove;

[0054] 41, slide table cylinder; 42, cylinder slide rail; 43, connecting block; 44, forming mounting seat; 45, side forming block; 46, side displacement slide rail;

[0055] 451, side forming block bevel; 452, side forming tool head; 453, inner side profiling edge; 454, outer side profiling edge;

[0056] 21, middle upper slide rail; 22, left upper forming cylinder; 23, right upper forming cylinder; 24, middle upper forming cylinder; 25, left upper forming block; 26, right upper forming block; 27, middle upper forming block;

[0057] 251, upper side forming bevel; 252, upper side forming tool head; 253, upper side forming guide arc edge;

[0058] 271, middle upper forming block bevel; 272, middle upper forming tool head;

[0059] 2721, outer side upper profiling groove; 2722, inner side upper profiling groove. DETAILED DESCRIPTION

[0060] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0061] Referring toFigures 1 to 3 The new energy motor special-shaped coil forming device of the preferred embodiment of the present application comprises a working panel 1, an upper forming mechanism 2 and a lower forming mechanism 3 are respectively arranged at the upper and lower ends of the front surface of the working panel 1, a mold closing mechanism 5 is arranged between the upper forming mechanism 2 and the lower forming mechanism 3, a pair of side forming mechanisms 4 are symmetrically arranged on both sides of the mold closing mechanism 5, a copper wire guide mechanism 7, a cutting mechanism 9 and a shearing fixing mechanism 6 are sequentially arranged on the horizontal working plane corresponding to the mold closing mechanism 5 from the inlet end to the fixed end, the copper wire to be processed 8 is guided to pass through the copper wire guide mechanism 7 from the inlet end, sequentially passes through the cutting mechanism 9, the mold closing mechanism 5 and the shearing fixing mechanism 6, and the end of the copper wire is fixed by the shearing fixing mechanism 6, then is cut by the cutting mechanism 9, and the copper wire with the length of the special-shaped coil product 80 is obtained;

[0062] The working panel 1 is a cross plate structure, an upper mounting plate 11, a lower mounting plate 12, a left side mounting surface 13 and a right side mounting surface 14 are sequentially arranged on the working panel 1 in the up-down and left-right directions, the upper forming mechanism 2 is mounted on the upper mounting plate 11, the lower forming mechanism 3 is mounted on the lower mounting plate 12, the side forming mechanisms 4 are symmetrically mounted on the left side mounting surface 13 and the right side mounting surface 14 respectively, a coil collecting mechanism 10 is further arranged in front of the working panel 1, the coil collecting mechanism 10 is connected with the discharge end of the mold closing mechanism 5 through a collecting slide rod 101, and is used for collecting the special-shaped coil product 80 processed and formed.

[0063] Referring to Figure 4The shearing fixing mechanism 6 includes a shearing inlet end 61, a fixing inlet end 62 and a fixing unit 63. The shearing inlet end 61 is located at one side of the mold closing mechanism 5, the fixing inlet end 62 and the fixing unit 63 are located at the other side of the mold closing mechanism 5, the top of the shearing inlet end 61 is provided with a trumpet-shaped inlet guide block 611 for guiding the copper wire 8 to be processed entering the mold closing mechanism 5, the fixing inlet end 62 is located at the front end of the fixing unit 63, the upper surface of the fixing inlet end 62 is provided with a trumpet-shaped fixing guide block 621 for guiding the copper wire 8 to be processed entering the fixing unit 63, the fixing unit 63 includes a fixing support 631 fixed on the surface of the workbench 1, the fixing support 631 is provided with a fixing base 632 on the side wall, and a fixing cylinder 633 is further arranged at the position of the fixing support 631 opposite to the fixing base 632. The output end of the fixing cylinder 633 is connected with a fixing pressing block 634, and a photoelectric sensor 635 opposite to the fixing base 632 is further arranged on the top of the fixing support 631. The photoelectric sensor 635 is in signal connection with the fixing cylinder 633 and the shearing mechanism 9. In the actual working process, when the photoelectric sensor 635 detects the copper wire 8 to be processed extending into the fixing unit 63, the detection signal is transmitted to the fixing cylinder 633 and the shearing mechanism 9 in sequence. The fixing pressing block 634 is driven by the fixing cylinder 633 to extend forward first, so as to press and fix the copper wire 8 to be processed on the fixing base 632, and then the shearing mechanism 9 is started to shear the copper wire 8 to be processed, so as to obtain the copper wire with the length of the shaped coil product 80.

[0064] Referring to Figure 5 The shaped coil product 80 is a double-layer coil structure, which includes a lower V-shaped section 81 at the bottom, right outer vertical line sections 82 and left inner vertical line sections 83 connected to both sides of the lower V-shaped section 81 respectively, upper outer V-shaped sections 84 and upper inner V-shaped sections 85 connected to the top ends of the right outer vertical line sections 82 and the left inner vertical line sections 83 respectively, and left outer vertical line sections 86 and right inner vertical line sections 87 connected to the other ends of the upper outer V-shaped sections 84 and the upper inner V-shaped sections 85 respectively and vertically downward.

[0065] Referring to Figures 6 to 8The die assembly mechanism 5 includes an openable outer die 51 and an inner die 52, the front surface of the inner die 52 is provided with an inner die upper profiling convex edge 521, an inner die side profiling convex edge 522 and an inner die lower profiling convex edge 523 which match the profiled coil finished product 80, the surface opposite to the inner die 52 of the outer die 51 is provided with an outer die upper profiling convex edge 511 which matches the inner die upper profiling convex edge 521, and below the outer die upper profiling convex edge 511 is provided with an outer die die assembly cavity 512 which matches the shape of the inner die side profiling convex edge 522; in actual use, after the outer die 51 and the inner die 52 are closed, the inner die upper profiling convex edge 521 and the outer die upper profiling convex edge 511 are tightly folded to form the forming die surface of the upper outer V-shaped section 84 and the upper inner V-shaped section 85 in the profiled coil finished product 80, and after the inner die side profiling convex edge 522 and the inner die lower profiling convex edge 523 are inserted into the outer die die assembly cavity 512, due to the limiting of the inner die upper profiling convex edge 521 and the outer die upper profiling convex edge 511, a section of the inner die side profiling convex edge 522 and the inner die lower profiling convex edge 523 will be reserved, wherein the reserved inner die side profiling convex edge 522 constitutes the forming die surface of the right outer vertical line section 82, the left inner vertical line section 83, the left outer vertical line section 86 and the right inner vertical line section 87 in the profiled coil finished product 80, and the reserved inner die lower profiling convex edge 523 forms the forming die surface of the lower V-shaped section 81 in the profiled coil finished product 80;

[0066] The width of the inner die upper profiling convex edge 521 and the outer die upper profiling convex edge 511 is equal to the diameter of the copper wire 8 to be processed,

[0067] The outer die 51 and the inner die 52 are provided with a set of matched outer die upper inclined surfaces 515 and inner die upper inclined surfaces 526, two sets of matched outer die side inclined surfaces 513 and inner die side inclined surfaces 524, and a set of matched outer die lower inclined surfaces 514 and inner die lower inclined surfaces 525 on the upper and lower left and right edges of the die assembly surface respectively; through the design of these matched inclined surfaces, the insertion forming of the upper forming mechanism 2, the lower forming mechanism 3 and the side forming mechanism 4 is limited, so that each forming mechanism can be accurately inserted into place to complete the coil profiling production;

[0068] The back surface of the outer die 51 is drivingly connected with the output end of the outer die driving air cylinder 54, the outer die driving air cylinder 54 is installed on the front surface of the working panel 1 through the outer die mounting plate 53, and a coil adjusting air cylinder 55 is also fixedly arranged at a position deviated to one side above the outer die driving air cylinder 54, and an adjusting block 56 is connected with the output end of the coil adjusting air cylinder 55; in actual use, after the lower V-shaped section 81, the right outer vertical line section 82 and the left inner vertical line section 83 at the bottom and both sides of the copper wire 8 to be processed are stamped and formed, the left inner vertical line section 83 is finely adjusted by the outer extension driving adjusting block 56 of the coil adjusting air cylinder 55, so that the left inner vertical line section 83 moves inward and the right outer vertical line section 82 moves outward, thereby facilitating the formation of a double-layer coil structure when the top of the copper wire 8 to be processed is stamped subsequently;

[0069] The back of the inner mold 52 is connected to the output end of the inner mold driving cylinder 58. The inner mold driving cylinder 58 is mounted on the back of the working panel 1 through the inner mold mounting plate 57. In actual use, the inner mold 52 and the outer mold 51 are driven to move towards each other to the forming working surface by the inner mold driving cylinder 58 and the outer mold driving cylinder 54 respectively to achieve mold closing. After the copper wire 8 to be processed is stamped and formed into a special-shaped coil product 80, the inner mold 52 and the outer mold 51 open the mold and retract to their original positions. The special-shaped coil product 80 slides down to the coil collecting mechanism 10 through the collecting slide rod 101 for collection.

[0070] See Figures 9 to 11 The lower forming mechanism 3 includes a left vertical slide rail 31 and a right vertical slide rail 32 symmetrically arranged on the surface of the working panel 1 along the vertical direction. A middle slide rail 33 is also arranged vertically in the middle position between the left vertical slide rail 31 and the right vertical slide rail 32. A left lower forming block 38, a right lower forming block 37 and a middle lower forming block 39 are slidably arranged on the surfaces of the left vertical slide rail 31, the right vertical slide rail 32 and the middle lower slide rail 33, respectively. The bottom of the left lower forming block 38, the right lower forming block 37 and the middle lower forming block 39 are sequentially connected to the top output end of the left lower forming cylinder 35, the right lower forming cylinder 34 and the middle lower forming cylinder 36.

[0071] The top of the middle and lower forming block 39 is a middle and lower forming cutter head 392. The end of the middle and lower forming cutter head 392 is also provided with a middle and lower forming cutter head contour groove 393. A middle and lower forming inclined surface 391 is also provided between the middle and lower forming cutter head 392 and the body of the middle and lower forming block 39. The dimensions of the middle and lower forming inclined surface 391 are matched with the dimensions of the outer mold lower inclined surface 514 and the inner mold lower inclined surface 525.

[0072] In actual use, the middle and lower forming block 39 is first driven to rise by the middle and lower forming cylinder 36. The middle and lower forming inclined surface 391 is matched with the lower inclined surface 514 of the outer mold and the lower inclined surface 525 of the inner mold. On the one hand, it saves the design space of the equipment. On the other hand, the inclined surface fits together to achieve a limiting effect, so that the middle and lower forming block 39 can be precisely stopped after reaching the limited position. The copper wire 8 to be processed is punched from the middle to form the lower V-shaped segment 81 by the cooperation of the middle and lower cutting head contour groove 393 and the lower contour protrusion 523 of the inner mold.

[0073] The left lower forming block 38 and the right lower forming block 37 are symmetrical to each other and arranged on both sides of the middle lower forming block 39, and the left lower forming block 38 and the right lower forming block 37 are provided with lower forming tool bits 382 on the side close to the middle lower forming block 39 through lower forming inclined surfaces 381, and the lower forming tool bits 382 are provided with lower forming guide arc edges 383 at the top corners, which are used for guiding and protecting the copper wire during the stamping forming of the copper wire 8; the lower forming inclined surfaces 381 are matched with the outer mold side inclined surfaces 513 and the inner mold side inclined surfaces 524; during actual work, when the lower V-shaped section 81 is formed by stamping, the left lower forming cylinder 35 and the right lower forming cylinder 34 drive the left lower forming block 38 and the right lower forming block 37 to move upward at the same time, and the outer mold side inclined surfaces 513 and the inner mold side inclined surfaces 524 and the lower forming inclined surfaces 381 provide a guide function for the upward and downward movement of the left lower forming block 38 and the right lower forming block 37, thereby improving the stability of the stamping forming, and finally the lower V-shaped section 81 is formed into the right outer vertical line section 82 and the left inner vertical line section 83 through the symmetrical lower forming tool bits 382 on both sides;

[0074] Referring to Figures 12 to 14 Each of the side forming mechanisms 4 includes a sliding table cylinder 41 slidably sleeved on a cylinder sliding rail 42, and a forming mounting seat 44 is fixedly connected below the sliding table cylinder 41 through a connecting block 43, the forming mounting seat 44 is slidably sleeved on the surface of a side moving sliding rail 46 arranged horizontally, and a side forming block 45 is fixedly connected on the forming mounting seat 44 in the horizontal direction, and the front section of the body of each side forming block 45 is connected with a side forming tool bit 452 through a side forming block inclined surface 451, wherein the bottom of the side forming tool bit 452 of the side forming mechanism 4 mounted on the left mounting surface 13 is provided with an inner side profiling edge 453, and the bottom of the side forming tool bit 452 of the side forming mechanism 4 mounted on the right mounting surface 14 is provided with an outer side profiling edge 454, and the pair of side forming block inclined surfaces 451 are matched with two groups of outer mold side inclined surfaces 513 and inner mold side inclined surfaces 524, and the matched inclined surfaces provide a limit for the insertion forming of the side forming mechanism 4, so that each forming mechanism can be accurately inserted into position to complete the coil profiling; during actual work, after the lower V-shaped section 81, the right outer vertical line section 82 and the left inner vertical line section 83 at the bottom and on both sides of the copper wire 8 are formed by stamping, the left inner vertical line section 83 is adjusted inward by the adjusting block 56 driven by the outward extension of the coil adjusting cylinder 55, so that the left inner vertical line section 83 moves inward and the right outer vertical line section 82 moves outward, then the side forming mechanism 4 is started, and the left inner vertical line section 83 and the right outer vertical line section 82 are horizontally stamped through the inner side profiling edge 453 and the outer side profiling edge 454 on the left side and the right side respectively, so that the top ends of the left inner vertical line section 83 and the right outer vertical line section 82 are cross-shaped, which is convenient for the final stamping forming of the upper forming mechanism 2;

[0075] Referring toFigures 15 to 17 The upper forming mechanism 2 comprises a left vertical slide rail 31 and a right vertical slide rail 32 symmetrically arranged on the surface of the work panel 1 in the vertical direction, and a middle upper slide rail 21 is arranged in the middle position of the left vertical slide rail 31 and the right vertical slide rail 32 in the vertical direction, and a left upper forming block 25, a right upper forming block 26 and a middle upper forming block 27 are slidably arranged on the surface of the left vertical slide rail 31, the right vertical slide rail 32 and the middle upper slide rail 21 respectively, and the top of the left upper forming block 25, the right upper forming block 26 and the middle upper forming block 27 is in turn in transmission connection with the bottom output end of a left upper forming cylinder 22, a right upper forming cylinder 23 and a middle upper forming cylinder 24;

[0076] The bottom end of the middle upper forming block 27 is a middle upper forming tool bit 272, and the end of the middle upper forming tool bit 272 is crossly provided with an outer upper profiling groove 2721 and an inner upper profiling groove 2722, and a middle upper forming block bevel 271 is further arranged between the middle upper forming tool bit 272 and the middle upper forming block 27, and the size of the middle upper forming block bevel 271 matches the size of the outer mold upper bevel 515 and the inner mold upper bevel 526;

[0077] In actual use, the inner profiling edge 453 and the outer profiling edge 454 on the left and right sides of the side forming mechanism 4 horizontally stamp the left inner vertical line segment 83 and the right outer vertical line segment 82, so that the top ends of the left inner vertical line segment 83 and the right outer vertical line segment 82 are cross-shaped after forming, the upper forming mechanism 2 is started, the middle upper forming block 27 is driven to be pressed down by the middle upper forming cylinder 24, and the middle upper forming block bevel 271 is matched with the outer mold upper bevel 515 and the inner mold upper bevel 526, which saves the design space of the equipment on the one hand, and plays a limiting effect through the bevel on the other hand, so that the middle upper forming block 27 can be accurately stopped after reaching the limited position, and the cross-shaped right outer vertical line segment 82 and left inner vertical line segment 83 are punched from the middle to form an upper outer V-shaped segment 84 and an upper inner V-shaped segment 85 through the cooperation of the outer upper profiling groove 2721, the inner upper profiling groove 2722, the outer mold upper profiling convex edge 511 and the inner mold upper profiling convex edge 521;

[0078] The left upper forming block 25 and the right upper forming block 26 are symmetrical to each other and arranged on the two sides of the middle upper forming block 27, and the left upper forming block 25 and the right upper forming block 26 are connected with the upper side forming tool bit 252 through the upper side forming slope 251 on the side close to the middle upper forming block 27, and the upper side forming tool bit 252 is provided with the upper side forming guide arc edge 253 at the top corner, which is used for guiding and protecting the copper wire when the upper outer V-shaped section 84 and the upper inner V-shaped section 85 are punched and formed; the upper side forming slope 251 is matched with the outer mold side slope 513 and the inner mold side slope 524; in actual work, when the upper outer V-shaped section 84 and the upper inner V-shaped section 85 are punched and formed, the left upper forming cylinder 22 and the right upper forming cylinder 23 drive the left upper forming block 25 and the right upper forming block 26 to press down at the same time, the cooperation of the outer mold side slope 513, the inner mold side slope 524 and the upper side forming slope 251 provides a guiding effect for the ascending and descending process of the left upper forming block 25 and the right upper forming block 26, improves the stability of the punching and forming, and finally the upper outer V-shaped section 84 and the upper inner V-shaped section 85 are punched to form the left outer vertical line section 86 and the right inner vertical line section 87 at the unformed end through the two symmetrical upper side forming tool bits 252, and finally the special-shaped coil product 80 is obtained.

[0079] The working principle of the present application is as follows:

[0080] In the actual use process of the new energy motor special-shaped coil forming device, first, the copper wire 8 to be processed is sent into the device through the previous process, guided through the copper wire guiding mechanism 7 from the entrance end, sequentially passes through the cutting mechanism 9, the mold closing mechanism 5 and the shearing fixing mechanism 6, when the photoelectric sensor 635 in the shearing fixing mechanism 6 detects the copper wire 8 inserted into the fixing unit 63, the detection signal is transmitted to the fixing cylinder 633 and the cutting mechanism 9 in turn, the fixing cylinder 633 is driven to drive the fixing block 634 to extend first, and the copper wire 8 to be processed is pressed and fixed on the fixing base 632, then the cutting mechanism 9 is started to cut the copper wire 8 to be processed, so that the copper wire with the length of the special-shaped coil product 80 can be obtained.

[0081] Then the inner mold 52 and the outer mold 51 are driven to move towards each other to the forming working surface to realize clamping by the inner mold driving cylinder 58 and the outer mold driving cylinder 54, respectively. After clamping, the upper outer V-shaped section 84 and the upper inner V-shaped section 85 in the special-shaped coil product 80 are formed by the upper profiled convex edges 521 and 511 of the inner mold and the outer mold, respectively. After the inner mold side profiled convex edge 522 and the inner mold lower profiled convex edge 523 are inserted into the outer mold clamping cavity 512, a certain length of the inner mold side profiled convex edge 522 and the inner mold lower profiled convex edge 523 are reserved due to the limitation of the upper profiled convex edges 521 and 511 of the inner mold and the outer mold. The reserved inner mold side profiled convex edge 522 forms the forming mold surface of the right outer vertical line section 82, the left inner vertical line section 83, the left outer vertical line section 86 and the right inner vertical line section 87 in the special-shaped coil product 80, and the reserved inner mold lower profiled convex edge 523 forms the forming mold surface of the lower V-shaped section 81 in the special-shaped coil product 80;

[0082] After clamping is completed, the middle lower forming block 39 is first driven upward by the middle lower forming cylinder 36. The middle lower forming slope 391 is matched with the outer mold lower slope 514 and the inner mold lower slope 525, which saves the design space of the equipment and limits the position of the middle lower forming block 39 through the slope fitting, so that the middle lower forming block 39 can be accurately stopped after reaching the limited position. The copper wire to be processed 8 is punched from the middle to form the lower V-shaped section 81 through the cooperation of the middle lower cutter head profiled groove 393 and the inner mold lower profiled convex edge 523. When the lower V-shaped section 81 is punched and formed, the left lower forming cylinder 35 and the right lower forming cylinder 34 drive the left lower forming block 38 and the right lower forming block 37 to move upward, respectively. The outer mold side slope 513 and the inner mold side slope 524 and the lower side forming slope 381 provide a guiding effect for the upward and downward movement of the left lower forming block 38 and the right lower forming block 37, thereby improving the stability of the punching and forming. Finally, the right outer vertical line section 82 and the left inner vertical line section 83 are punched at both ends of the lower V-shaped section 81 through the symmetrical lower side forming cutter head 382 on both sides.

[0083] When the lower V-shaped section 81, the right outer vertical line section 82 and the left inner vertical line section 83 at the bottom and both sides of the copper wire to be processed 8 are punched and formed, the left inner vertical line section 83 is adjusted inward by the adjusting block 56 driven by the coil adjusting cylinder 55. The left inner vertical line section 83 moves inward and the right outer vertical line section 82 moves outward. Then the side forming mechanism 4 is started, and the left inner vertical line section 83 and the right outer vertical line section 82 are horizontally punched by the inner side profiled edge 453 and the outer side profiled edge 454 on the left and right sides, respectively. The top ends of the left inner vertical line section 83 and the right outer vertical line section 82 are crossed to form a special-shaped coil product 80.

[0084] Subsequently, the upper forming mechanism 2 is started, the middle upper forming block 27 is driven to press down by the middle upper forming cylinder 24, the middle upper forming block slope 271 is matched with the outer mold upper slope 515 and the inner mold upper slope 526, which saves the design space of the equipment on the one hand, and plays a limiting effect through the slope fitting, so that the middle upper forming block 27 can be accurately stopped after reaching the limited position, and the right side outer vertical line segment 82 and the left side inner vertical line segment 83 are punched from the middle to form the upper outer V-shaped segment 84 and the upper inner V-shaped segment 85 through the outer side upper profiling groove 2721 and the inner side upper profiling groove 2722 matched with the outer mold upper profiling convex edge 511 and the inner mold upper profiling convex edge 521 respectively.

[0085] Finally, the left upper forming cylinder 22 and the right upper forming cylinder 23 drive the left upper forming block 25 and the right upper forming block 26 to press down respectively and simultaneously, the outer mold side slope 513 and the inner mold side slope 524 and the upper side forming slope 251 are matched to provide a guiding effect for the left upper forming block 25 and the right upper forming block 26 during the rising and falling process, thereby improving the stability of the stamping forming, and finally the left side outer vertical line segment 86 and the right side inner vertical line segment 87 are punched from the unformed end of the upper outer V-shaped segment 84 and the upper inner V-shaped segment 85 by the two sides of the symmetrical upper side forming tool head 252, thereby obtaining the special-shaped coil product 80, the inner mold 52 and the outer mold 51 are opened and retreated to the original position, the special-shaped coil product 80 is slid down to the coil collecting mechanism 10 through the collecting slide rod 101 for collection, and the reciprocating cycle is repeated to complete the automatic forming of the special-shaped coil.

[0086] The above only describes the preferred embodiments of the present application and is not used to limit the present application. It should be pointed out that for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A new energy motor special-shaped coil forming device, comprising a work panel, characterized in that: The upper and lower molding mechanisms are arranged at the upper and lower ends of the front surface of the work panel respectively, a mold closing mechanism is arranged between the upper and lower molding mechanisms, a pair of side molding mechanisms are symmetrically arranged on both sides of the mold closing mechanism, and a copper wire guiding mechanism, a wire cutting mechanism and a shearing fixing mechanism are sequentially arranged on the horizontal work plane of the mold closing mechanism from the entrance end to the fixed end. The mold closing mechanism comprises an openable and closable outer mold and an inner mold, the front surface of the inner mold is provided with an inner mold upper profiling convex edge, an inner mold side profiling convex edge and an inner mold lower profiling convex edge matched with the profiled coil product, the surface opposite to the inner mold of the outer mold is provided with an outer mold upper profiling convex edge matched with the inner mold upper profiling convex edge, and an outer mold mold closing cavity matched with the shape of the inner mold side profiling convex edge is arranged below the outer mold upper profiling convex edge. A matched set of outer mold upper inclined surfaces and inner mold upper inclined surfaces, two sets of matched outer mold side inclined surfaces and inner mold side inclined surfaces and a matched set of outer mold lower inclined surfaces and inner mold lower inclined surfaces are respectively arranged on the upper and lower left and right edges of the mold closing surface of the outer mold and the inner mold. The lower molding mechanism comprises left and right vertical slide rails symmetrically arranged on the surface of the work panel in the vertical direction, and a middle lower slide rail is arranged in the vertical direction at the middle position of the left and right vertical slide rails, and left, right and middle lower molding blocks are slidably arranged on the surfaces of the left, right and middle lower slide rails respectively, and the bottoms of the left, right and middle lower molding blocks are in transmission connection with the top output ends of left, right and middle lower molding cylinders in sequence. The top end of the middle lower molding block is a middle lower molding cutter head, the middle lower cutter head is further provided with a middle lower cutter head profiling groove, and a middle lower molding inclined surface is further arranged between the middle lower molding cutter head and the middle lower molding block body, and the size of the middle lower molding inclined surface matches that of the outer mold lower inclined surface and the inner mold lower inclined surface. The left and right lower molding blocks are symmetrically arranged on both sides of the middle lower molding block, and the left and right lower molding blocks are identical in shape.

2. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: The back surface of the outer mold is in transmission connection with the output end of the outer mold driving cylinder, the outer mold driving cylinder is installed on the front surface of the work panel through an outer mold mounting plate, a coil adjusting cylinder is further fixedly arranged above the outer mold driving cylinder and deviated to one side, and an adjusting block is connected to the output end of the coil adjusting cylinder.

3. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: The back surface of the inner mold is in transmission connection with the output end of the inner mold driving cylinder, and the inner mold driving cylinder is installed on the back surface of the work panel through an inner mold mounting plate.

4. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: The working panel is a cross-shaped plate structure, and an upper mounting plate, a lower mounting plate, a left side mounting surface and a right side mounting surface are sequentially arranged on the working panel in four directions of up, down, left and right.

5. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: The shearing fixing mechanism comprises a shearing inlet end, a fixing inlet end and a fixing unit, the shearing inlet end is located on one side of the mold closing mechanism inlet, the fixing inlet end and the fixing unit are located on the other side of the mold closing mechanism, a horn-shaped inlet guide block is arranged on the top of the shearing inlet end, which is used for guiding the copper wire to be processed into the mold closing mechanism, the fixing inlet end is located at the front end of the fixing unit, and a horn-shaped fixing guide block is arranged on the upper surface of the fixing inlet end.

6. The device for forming a profiled coil of a new energy motor according to claim 5, characterized in that: The fixing unit comprises a fixing support fixed to the surface of the working panel, a fixing base is arranged on the side wall of the fixing support, a fixing cylinder is also arranged at the position of the fixing support opposite to the fixing base, a fixing pressing block is connected to the output end of the fixing cylinder, and a photoelectric sensor opposite to the fixing base is arranged on the top of the fixing support.

7. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: Each side forming mechanism comprises a sliding table cylinder slidably sleeved on a cylinder sliding rail in a horizontal direction, a forming mounting seat is fixedly connected to the sliding table cylinder through a connecting block below the sliding table cylinder, the forming mounting seat is slidably sleeved on the surface of a horizontally arranged side moving sliding rail, a side forming block is fixedly connected to the forming mounting seat in a horizontal direction, and a side forming tool bit is connected to the front section of the body of each side forming block through a side forming block inclined surface, wherein the bottom of the side forming tool bit of the side forming mechanism mounted on the left side mounting surface is provided with an inner side profiling rib, the bottom of the side forming tool bit of the side forming mechanism mounted on the right side mounting surface is provided with an outer side profiling rib, and the side forming block inclined surfaces are matched with two groups of outer mold side inclined surfaces and inner mold side inclined surfaces.

8. The device for forming a profiled coil of a new energy motor according to claim 1, characterized in that: The upper forming mechanism comprises left and right vertical sliding rails symmetrically arranged on the surface of the working panel in a vertical direction, and a middle upper sliding rail is arranged on the middle positions of the left and right vertical sliding rails in a vertical direction, and left, right and middle upper forming blocks are slidably arranged on the surfaces of the left and right vertical sliding rails and the middle upper sliding rail, respectively, and the top portions of the left, right and middle upper forming blocks are in transmission connection with the bottom output ends of left, right and middle upper forming cylinders in sequence. The bottom end of the middle upper forming block is a middle upper forming tool bit, the end portion of the middle upper forming tool bit is also crossly provided with an outer side upper profiling groove and an inner side upper profiling groove, and a middle upper forming block inclined surface is further arranged between the middle upper forming tool bit and the middle upper forming block body. The bottom end of the middle upper forming block is a middle upper forming tool bit, the end portion of the middle upper forming tool bit is also crossly provided with an outer side upper profiling groove and an inner side upper profiling groove, and a middle upper forming block inclined surface is further arranged between the middle upper forming tool bit and the middle upper forming block body. The left upper forming block and the right upper forming block are symmetrically arranged on the two sides of the middle upper forming block, and the bodies of the left upper forming block and the right upper forming block are connected with upper side forming tool bits through upper side forming inclined surfaces on the side close to the middle upper forming block, and the upper side forming tool bits are provided with upper side forming guide arc edges at the top corners, which are used for guiding and protecting the copper wire when stamping and forming the unformed end of the upper outer V-shaped section and the upper inner V-shaped section. The upper side forming inclined surfaces are matched with the outer mold side inclined surface and the inner mold side inclined surface.

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