AX series relay armature and pull shaft crimping die and use method thereof

Abstract

The invention discloses an AX series relay armature and pull shaft crimping die and a using method thereof, and relates to the technical field of crimping dies, the AX series relay armature and pull shaft crimping die comprises a lower die, an upper die, a right die, an auxiliary plate, a back plate and a cutter, the lower die comprises a lower die body, and a pair of parallel balance supporting tables is arranged on the upper surface of the lower die body in the front-back direction; a left vertical plate is integrally formed on the left side of the lower die body, a right transverse plate is integrally formed on the right side of the lower die body, and a scrap storage area is arranged between the pair of balance supporting tables and corresponds to the rear side of the compression joint supporting table. Bending and cutting of the pull shaft, alignment feeding of the armature, crimping of the pull shaft and the armature and scrap blowing cleaning of the lower die can be carried out, the functions are complete, the automation degree is high, the labor intensity of workers is relieved, the crimping efficiency of the pull shaft of the armature is improved, copper scraps are prevented from being attached to the armature through scrap blowing cleaning of the lower die, and the quality of subsequent finished products is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crimping dies, in particular to an AX series relay armature and pull shaft crimping die and a use method thereof. Background Art

[0002] AX series relay is a heavy spring type DC electromagnetic relay, mainly used in railway signal equipment to ensure the stable operation of various automatic control and remote control signal equipment.

[0003] AX series relay is a kind of relay used for safety control, which belongs to safety relay. Safety relay mainly acts in control circuit, realizes the function of control signal through relay, and completes the control of start, stop, linkage, delay, etc. Therefore, the assembly process of relay is of utmost importance.

[0004] The armature assembly of a safety relay is one of the key components of a safety relay. It is usually made of magnetic materials. Its action drives the closing and opening of the contacts and plays a core role in the working process of the relay. The design and performance characteristics of the armature of a safety relay are often closely related to the safety and reliability of the relay.

[0005] The armature assembly is usually assembled from a pull shaft, a weight plate and a stop plate. The reliable connection between the pull shaft and the armature is extremely important for the quality of the entire assembly. The pull shaft is used to fix the weight plate after matching with the armature notch. The pull shaft is pressed into the armature notch, and the position control during assembly is extremely important. The existing assembly of the armature and the pull shaft has the following problems: 1. The existing method is to manually place the pull shaft that has been cut into a certain length in the slot of the armature, and then manually use a tool to hammer the pull shaft into the slot or use a press to press the pull shaft into the slot. However, this method has low work efficiency, high labor intensity and low accuracy; 2. During the assembly process, since the pull shaft is made of copper wire, it will be deformed during the pressing or hammering process and squeezed with the notch. Therefore, copper chips may be generated. These copper chips remain on the mold, so when the next armature pull shaft is crimped, these copper chips will be pressed on the surface of the next armature. If the copper chips are embedded in the armature assembly, as the relay moves, the armature will continue to vibrate, causing the iron chips to fall off and even fall onto the contact system, causing the relay contact system to be incorrectly connected or even signal upgrade.

[0006] In summary, an AX series relay armature and pull shaft crimping die and a method for using the same are urgently needed to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the present invention provides an AX series relay armature and pull shaft crimping die and a method of using the same, which can perform bending and cutting of the pull shaft, positioning and loading of the armature, crimping of the pull shaft and the armature, and chip blowing and cleaning of the lower die. It has complete functions and a high degree of automation, reduces labor intensity of personnel, improves the crimping efficiency of the armature pull shaft, and the chip blowing and cleaning of the lower die avoids copper chips adhering to the armature, thereby improving the quality of subsequent finished products.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an AX series relay armature and pull shaft crimping die, including a lower die, an upper die, a right die, an auxiliary plate, a back plate and a cutter, the lower die includes a lower die body, a pair of parallel balancing support platforms are arranged on the upper surface of the lower die body along the front-to-back direction, and a crimping support platform is arranged between the pair of balancing support platforms and perpendicular to the balancing support platforms, a left vertical plate is integrally formed on the left side of the lower die body, and a right horizontal plate is integrally formed on the right side, and the back side of the corresponding crimping support platform between the pair of balancing support platforms is A chip storage area is provided with a through chip removal port corresponding to the front side of the crimping support platform, a wire hole is provided on the left vertical plate at a position corresponding to the crimping support platform, and a chip blowing hole is provided on the left vertical plate near the wire hole, and the outer side of the chip blowing hole is connected to an external blowing system, and fixing holes are respectively provided on the left vertical plate and the right horizontal plate for fixing the lower mold by screws, a pair of first threaded holes is provided on the right horizontal plate, a pair of second threaded holes is provided on the front side wall of the lower mold body, and a pair of third threaded holes is provided on the rear side wall; the upper mold includes an upper mold body, and a The mounting plate is connected to the external vertical drive system, the upper mold body is arranged directly above the lower mold body, a pair of crimping protrusions are arranged on both sides of the bottom center of the upper mold body, a fourth threaded hole is opened on the side wall of the upper mold body corresponding to the wire hole, and a pair of fourth connecting holes corresponding to the fourth threaded hole are arranged on the cutter, and the cutter is connected to the upper mold body by screws penetrating the fourth connecting holes and screwing the fourth threaded holes; the right mold is vertically opened with a first connecting hole, and the right mold is connected to the right horizontal plate by screws penetrating the first connecting hole and screwing the first threaded hole. The right mold is horizontally provided with a bending groove at a position corresponding to the wire hole; the auxiliary plate includes a fixed plate and a support plate, the fixed plate is provided with a pair of second connecting holes corresponding to the second threaded holes, and the fixed plate is connected to the lower mold body by screws penetrating the second connecting holes and screwing the second threaded holes, the support plate is horizontally arranged and fixedly connected to the fixed plate, and the upper surface of the support plate is flush with the upper surface of the balance support platform; the back plate is provided with a pair of third connecting holes corresponding to the third threaded holes, and the back plate is connected to the lower mold body by screws penetrating the third connecting holes and screwing the third threaded holes.

[0009] Preferably, a fifth threaded hole is provided on the upper surface of the back plate, and a position sensor for detecting the position of the armature is provided on the back plate through the fifth threaded hole.

[0010] Preferably, the auxiliary plate comprises a limiting plate, which is vertically arranged on one side of the supporting plate, and the inner side wall of the limiting plate is flush with the outer side wall of the balancing support platform.

[0011] Preferably, a positioning claw is provided at the center of the bottom of the upper mold body, and the center of the positioning claw can be in the same straight line as the center of the wire hole and the bending groove.

[0012] Preferably, a chip guide opening is provided at the center of the crimping support platform.

[0013] Preferably, the upper mold and the lower mold are both made of SKD-11 material.

[0014] A method for using a crimping die for an armature and a pull shaft of an AX series relay, the steps are as follows: (i) Place the armature on the support plate, corresponding to the front of a pair of balancing support platforms. The personnel push the armature into the upper surface of the balancing support platform and the crimping support platform. A notch is pre-opened on the armature, and the position of the notch is aligned with the vertical direction of the crimping protrusion at the bottom of the upper die body; (ii) Insert the copper wire used to make the pull shaft from the outside of the left vertical plate into the wire hole and abut it against the bending groove; (iii) The upper die is driven downward by an external vertical drive system, so that the cutter connected to the upper die body cuts off the pull shaft copper wire at the wire hole position of the left vertical plate. At the same time, the upper die body pushes the pull shaft copper wire down, and the end of the copper wire is bent along the bending groove; (iv) The upper die continues to be driven downward by the external vertical drive system, and the upper die body pushes the pull shaft into the notch, and presses the pull shaft downward through the crimping protrusion so that it is squeezed tightly into the notch; (5) The upper die is driven upward by an external vertical drive system, returns to the initial position, and takes out the crimped armature and pull shaft; (6) Start the external air blowing system, blow air to the upper surface of the lower mold through the chip blowing hole, and blow the remaining copper chips to the chip storage area or chip discharge port; (VII) After the chip blowing is completed, the next crimping work between the armature and the pull shaft is carried out.

[0015] The present invention provides an AX series relay armature and pull shaft crimping die and a use method thereof, which has the following beneficial effects: 1. The present invention can be used for bending and cutting the pull shaft, positioning and loading the armature, crimping the pull shaft and the armature, and blowing and cleaning the lower die. It has complete functions and a high degree of automation, reduces the labor intensity of personnel, and improves the crimping efficiency of the armature and pull shaft. The chip blowing and cleaning of the lower die avoids the adhesion of copper chips on the armature, thereby improving the quality of subsequent finished products. 2. In the present invention, a positioning claw is provided at the bottom of the upper mold to ensure the position of the pull shaft copper wire entering from the wire hole, improve the alignment with the armature slot and the stability when the end is bent; the auxiliary plate includes a limit plate, which is arranged on one side of the support plate, and the armature is pushed toward the lower mold against the limit plate, which can ensure the accuracy of the left and right position of the armature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a schematic diagram of the lower mold of the present invention; Figure 3 It is a schematic diagram of the rear of the lower mold of the present invention; Figure 4 A schematic diagram of the upper mold of the present invention; Figure 5 It is a schematic diagram of the right mold of the present invention; Figure 6 is a schematic diagram of an auxiliary plate of the present invention; Figure 7 is a schematic diagram of a back plate of the present invention; Figure 8 is a schematic diagram of a cutter of the present invention; Fig. 9 It is a schematic diagram of the crimping connection between the armature and the pull shaft of the present invention.

[0017] In the figure: 1, lower mold; 2, upper mold; 3, right mold; 4, auxiliary plate; 5, back plate; 6, cutter; 7, armature; 8, pull shaft; 101, fixing hole; 102, limit hole; 103, first threaded hole; 104, crimping support platform; 105, chip storage area; 106, balance support platform; 107, chip guide port; 108, chip discharge port; 109, second threaded hole; 110, chip blowing hole; 111, wire hole; 112, left vertical plate; 113, Right horizontal plate; 114, third threaded hole; 115, lower mold body; 201, mounting plate; 202, fourth threaded hole; 203, crimping protrusion; 204, positioning claw; 205, upper mold body; 301, first connecting hole; 302, bending groove; 401, fixing plate; 402, second connecting hole; 403, supporting plate; 404, limiting plate; 501, third connecting hole; 502, fifth threaded hole; 601, fourth connecting hole; 701, notch. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-9As shown, a crimping die for an armature 7 and a pull shaft 8 of an AX series relay comprises a lower die 1, an upper die 2, a right die 3, an auxiliary plate 4, a back plate 5 and a cutter 6, wherein the lower die 1 comprises a lower die body 115, a pair of parallel balancing support platforms 106 are arranged on the upper surface of the lower die body 115 along the front-to-back direction, and a crimping support platform 104 is arranged between the pair of balancing support platforms 106 and perpendicular to the balancing support platforms 106, a left vertical plate 112 is integrally formed on the left side of the lower die body 115, and a right horizontal plate 113 is integrally formed on the right side, a chip storage area 105 is arranged at the rear side of the corresponding crimping support platform 104 between the pair of balancing support platforms 106, and a through chip discharge port 104 is arranged at the front side of the corresponding crimping support platform 104 8. A wire hole 111 is provided on the left vertical plate 112 at a position corresponding to the crimping support platform 104, and a chip blowing hole 110 is provided on the left vertical plate 112 near the wire hole 111. The outer side of the chip blowing hole 110 is connected to an external blowing system. The left vertical plate 112 and the right horizontal plate 113 are respectively provided with fixing holes 101 for fixing the lower mold 1 by screws. The right horizontal plate 113 is provided with a pair of first threaded holes 103, and the front side wall of the lower mold body 115 is provided with a pair of second threaded holes 109, and the rear side wall is provided with a pair of third threaded holes 114; the upper mold 2 includes an upper mold body 205, and a mounting plate 201 is provided on the top of the upper mold body 205, and the mounting plate 201 is connected to the external vertical The drive system is connected, the upper mold body 205 is arranged directly above the lower mold body 115, and a pair of crimping protrusions 203 are arranged on both sides of the bottom center of the upper mold body 205. A fourth threaded hole 202 is opened on the side wall of the upper mold body 205 corresponding to the wire hole 111, and a pair of fourth connecting holes 601 corresponding to the fourth threaded hole 202 are set on the cutter 6. The cutter 6 is connected to the upper mold body 205 by screwing through the fourth connecting hole 601 and screwing the fourth threaded hole 202; the right mold 3 is vertically opened with a first connecting hole 301, and the right mold 3 is connected to the right horizontal plate 113 by screwing through the first connecting hole 301 and screwing the first threaded hole 103. The right mold 3 corresponds to the wire hole 111 horizontally. A bending groove 302 is provided at the position of 11; the auxiliary plate 4 includes a fixed plate 401 and a support plate 403, the fixed plate 401 is provided with a pair of second connecting holes 402 corresponding to the second threaded hole 109, the fixed plate 401 is connected to the lower mold body 115 by screws penetrating the second connecting holes 402 and screwing the second threaded holes 109, the support plate 403 is horizontally arranged and fixedly connected to the fixed plate 401, and the upper surface of the support plate 403 is flush with the upper surface of the balancing support platform 106; a pair of third connecting holes 501 corresponding to the third threaded holes 114 are provided on the back plate 5, and the back plate 5 is connected to the lower mold body 115 by screws penetrating the third connecting holes 501 and screwing the third threaded holes 114;The upper end surface of the back plate 5 is provided with a fifth threaded hole 502, and a position sensor for detecting the position of the armature 7 is provided on the back plate 5 through the fifth threaded hole 502; the auxiliary plate 4 includes a limit plate 404, which is vertically arranged on one side of the support plate 403, and the inner side wall of the limit plate 404 is flush with the outer side wall of the balance support platform 106; a positioning claw 204 is provided at the bottom center of the upper mold body 205, and the center of the positioning claw 204 can be on the same straight line with the center of the wire hole 111 and the bending groove 302; a chip guide port 107 is provided at the center of the crimping support platform 104; the upper mold 2 and the lower mold 1 are both made of SKD-11 material. ;

[0020] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows: According to the instruction manual Figure 1-9 It can be known that the lower mold 1 of the present invention is fixed on the workbench used to support the entire device through the fixing holes 101 on the left vertical plate 112 and the right horizontal plate 113, and the lower mold 1 is fixed with screws. The outer side of the chip blowing hole 110 on the left vertical plate 112 is connected to the external blowing system. The outer side of the wire hole 111 on the left vertical plate 112 is loaded through the pull shaft 8 copper wire loading mechanism. The existing copper wire loading mechanism can be used. Of course, the manual pushing loading method can also be used. The upper mold 2 is driven by the external vertical drive system. The external vertical drive system can be set on the workbench. The above workbench, external blowing system, external vertical drive system and loading copper wire loading mechanism, as well as the installation position and connection relationship can all use the existing technology. The armature 7 is pre-opened with a slot 701 for placing the pull shaft 8. The so-called pull shaft 8 is the technical name for the pull shaft 8 copper wire after cutting and crimping in the slot 701. The above is a well-known technology for those skilled in the art. The dimensions of the wire hole 111 , the bending groove 302 , and the notch 71 in the present invention match the dimensions of the pull shaft 8 , which can be well understood by those skilled in the art.

[0021] During the crimping operation of the present invention, the armature 7 is placed on the support plate 403, corresponding to the front of a pair of balancing support platforms 106. The personnel push the armature 7 into the upper surfaces of the balancing support platform 106 and the crimping support platform 104, and make the position of the notch 701 correspond to the wire hole 111 and the bending groove 302. The wire hole 111 and the bending groove 302 will be slightly higher than the notch 701; the copper wire of the pull shaft 8 is inserted from the outside of the left vertical plate 112 to the wire hole 111 through the external copper wire feeding mechanism and abutted against the bending groove 302; the upper mold 2 is driven downward by the external vertical drive system, so that the cutter 6 connected to the upper mold body 205 cuts off the copper wire of the pull shaft 8 at the position of the wire hole 111 of the left vertical plate 112, and the side surface of the cutter 6 cuts the inner wall surface of the left vertical plate 112, and the cutting of the copper wire of the pull shaft 8 is more stable. At the same time, the upper mold body 205 moves downward to push the pull shaft 8, and the pull shaft 8 corresponds to the bending groove 3 The end of 02 is bent under the limiting action of the bending groove 302 shape. It should be understood that the purpose of bending the pull shaft 8 is: the bent part of the pull shaft 8 protrudes a height from the plane of the armature 7, and a part with a hole will be riveted to the armature 7 in the subsequent sequence. The hole is the bent part of the pull shaft 8, which plays a limiting role; the upper mold 2 continues to be driven downward by the external vertical drive system, and the upper mold body 205 pushes the pull shaft 8 into the slot 701, and presses the pull shaft 8 down through the crimping protrusion 203 to squeeze it tightly in the slot 701; the upper mold 2 is driven upward by the external vertical drive system, returns to the initial position, and takes out the crimped armature 7 and the pull shaft 8; starts the external blowing system, and blows the upper surface of the lower mold 1 through the chip blowing hole 110 to blow the remaining copper chips to the chip storage area 105 or the chip discharge port 108; after the chip blowing is completed, the next crimping work of the armature 7 and the pull shaft 8 is carried out. The present invention can perform bending and cutting of the pull shaft 8, alignment and loading of the armature 7, crimping of the pull shaft 8 and the armature 7, and chip blowing and cleaning of the lower die 1. It has complete functions and a high degree of automation, reduces the labor intensity of personnel, and improves the crimping efficiency of the armature 7 and the pull shaft 8. The chip blowing and cleaning of the lower die 1 avoids the adhesion of copper chips to the armature 7, thereby improving the quality of subsequent finished products.

[0022] Among them, a fifth threaded hole 502 is opened on the upper end surface of the back plate 5, and a position sensor for detecting the position of the armature 7 is arranged on the back plate 5 through the fifth threaded hole 502. The position sensor can detect whether the armature 7 is placed in place in the mold, and then the pull shaft 8 is crimped. After crimping, the position sensor detects that the armature 7 exits the lower mold 1, and the external blowing system works to blow air through the chip blowing hole 110 to blow away the remaining copper chips, thereby improving the degree of automation and ensuring the accuracy of the feeding position of the armature 7. The position sensor is a prior art and is not drawn in the attached drawings.

[0023] Among them, the auxiliary plate 4 includes a limit plate 404, which is vertically arranged on one side of the support plate 403. The inner wall of the limit plate 404 is flush with the outer wall of the balance support platform 106. Pushing the armature 7 toward the lower mold 1 along the limit plate 404 can ensure the accuracy of the left and right position of the armature 7.

[0024] Among them, a positioning claw 204 is set at the center position of the bottom of the upper mold body 205. The center of the positioning claw 204 can be in the same straight line with the center of the wire hole 111 and the bending groove 302, ensuring the position of the copper wire of the pull shaft 8 entering from the wire hole 111, improving the vertical alignment with the slot 701 of the armature 7, and also ensuring stability during bending.

[0025] A chip guide opening 107 is provided at the center of the crimping support platform 104 , and copper chips in the chip storage area 105 can be discharged to the chip discharge opening 108 through the chip guide opening 107 , which is simple and convenient.

[0026] Among them, the upper mold 2 and the lower mold 1 are both made of SKD-11 material, and the hardness meets the use requirements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crimping die for an armature (7) and a pull shaft (8) of an AX series relay, characterized in that: The invention comprises a lower mold (1), an upper mold (2), a right mold (3), an auxiliary plate (4), a back plate (5) and a cutter (6), wherein the lower mold (1) comprises a lower mold body (115), a pair of parallel balancing support platforms (106) are arranged on the upper surface of the lower mold body (115) along the front-back direction, and a crimping support platform (104) is arranged between the pair of balancing support platforms (106) and perpendicular to the balancing support platforms (106), a left vertical plate (112) is integrally formed on the left side of the lower mold body (115), and a right horizontal plate (113) is integrally formed on the right side, and a corresponding crimping support platform (104) is arranged between the pair of balancing support platforms (106) The rear side of the support platform (104) is a chip storage area (105), and a through chip removal port (108) is provided on the front side of the corresponding crimping support platform (104). A wire hole (111) is provided on the left vertical plate (112) at a position corresponding to the crimping support platform (104), and a chip blowing hole (110) is provided on the left vertical plate (112) near the wire hole (111). The outer side of the chip blowing hole (110) is connected to an external blowing system. The left vertical plate (112) and the right horizontal plate (113) are respectively provided with fixing holes (101) for fixing the lower mold (1) by screws. The right horizontal plate (113) is provided with a pair of first a threaded hole (103), a pair of second threaded holes (109) are arranged on the front side wall of the lower mold body (115), and a pair of third threaded holes (114) are arranged on the rear side wall; the upper mold (2) comprises an upper mold body (205), a mounting plate (201) is arranged on the top of the upper mold body (205), and the mounting plate (201) is connected to an external vertical drive system, the upper mold body (205) is arranged directly above the lower mold body (115), a pair of crimping protrusions (203) are arranged on both sides of the center of the bottom of the upper mold body (205), and the upper mold body (205) has a side corresponding to the wire hole (111) A fourth threaded hole (202) is provided on the wall, and a pair of fourth connecting holes (601) corresponding to the fourth threaded hole (202) are provided on the cutter (6), and the cutter (6) is connected to the upper mold body (205) by screws passing through the fourth connecting holes (601) and screwing the fourth threaded holes (202); a first connecting hole (301) is vertically provided on the right mold (3), and the right mold (3) is connected to the right horizontal plate (113) by screws passing through the first connecting holes (301) and screwing the first threaded holes (103); a bending groove (302) is provided on the right mold (3) at a position corresponding to the wire hole (111) horizontally;The auxiliary plate (4) comprises a fixing plate (401) and a supporting plate (403); the fixing plate (401) is provided with a pair of second connection holes (402) corresponding to the second threaded holes (109); the fixing plate (401) is connected to the lower mold body (115) by screws passing through the second connection holes (402) and screwing to the second threaded holes (109); the supporting plate (403) is horizontally arranged and fixedly connected to the fixing plate (401); the upper surface of the supporting plate (403) is flush with the upper surface of the balancing support platform (106); the back plate (5) is provided with a pair of third connection holes (501) corresponding to the third threaded holes (114); the back plate (5) is connected to the lower mold body (115) by screws passing through the third connection holes (501) and screwing to the third threaded holes (114). ; 2. The AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: A fifth threaded hole (502) is provided on the upper end surface of the back plate (5), and a position sensor for detecting the position of the armature (7) is provided on the back plate (5) through the fifth threaded hole (502).

3. The AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: The auxiliary plate (4) comprises a limiting plate (404), the limiting plate (404) being vertically arranged on one side of the supporting plate (403), and the inner side wall of the limiting plate (404) being flush with the outer side wall of the balancing supporting platform (106).

4. The AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: A positioning claw (204) is provided at the center of the bottom of the upper mold body (205), and the center of the positioning claw (204) can be on the same straight line as the centers of the wire hole (111) and the bending groove (302).

5. The AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: A chip guide opening (107) is provided at the center of the crimping support platform (104).

6. The AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: The upper mold (2) and the lower mold (1) are both made of SKD-11 material.

7. The method for using the AX series relay armature (7) and pull shaft (8) crimping die according to claim 1, characterized in that: Here are the steps: (i) placing the armature (7) on the support plate (403) corresponding to the front of a pair of balancing support platforms (106), and pushing the armature (7) into the upper surface of the balancing support platform (106) and the crimping support platform (104). A notch (701) is pre-opened on the armature (7), and the position of the notch (701) is vertically aligned with the crimping protrusion (203) at the bottom of the upper mold body (205); (ii) inserting a copper wire for making the pull shaft (8) from the outside of the left vertical plate (112) into the wire hole (111) until the copper wire abuts against the bending groove (302); (iii) the upper mold (2) is driven downward by an external vertical drive system, so that the cutter (6) connected to the upper mold body (205) cuts off the copper wire of the pull shaft (8) at the position of the wire hole (111) of the left vertical plate (112). At the same time, the upper mold body (205) pushes the copper wire of the pull shaft (8) downward, and the end of the copper wire is bent along the bending groove (302); (iv) the upper mold (2) continues to be driven downward by the external vertical drive system, the upper mold body (205) pushes the pull shaft (8) into the notch (701), and presses the pull shaft (8) downward by the crimping protrusion (203), so that it is squeezed tightly into the notch (701); (V) The upper die (2) is driven upward by an external vertical drive system, returns to the initial position, and takes out the crimped armature (7) and the pull shaft (8); (vi) starting the external air blowing system to blow air to the upper surface of the lower mold (1) through the chip blowing hole (110) to blow the remaining copper chips to the chip storage area (105) or the chip discharge port (108); (VII) After the chip blowing is completed, the next crimping work of the armature (7) and the pull shaft (8) is carried out.

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