A combined stamping processing device for U-shaped parts with holes for automobile parts and a method of using the same

Abstract

The present invention relates to the field of stamping processing. The present invention discloses a combined stamping processing device for a U-shaped part with a hole in an automobile component and a method for using the device. The device comprises a side partition template, an upper die seat, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force pressing block, a forming template and a blanking template. The middle part of the forming groove is rotatably connected with a forming block, the bottom surface of the upper movable plate is fixedly connected with a force pressing block matched with the forming block, and the top of the upper movable plate is slidably connected with the linkage secondary pressing and punching transmission rod. An open cavity is adopted to form a bending component by a rotating forming block and two force pressing blocks, and a punching linkage mechanism is arranged inside the force pressing block and above the upper movable plate, so that the stamping process is carried out inside the forming groove, and the position change of the upper die seat and the upper movable plate is realized at the same time, and a hole is punched out of the U-shaped part of the side wall of the forming block by the linkage part inside the force pressing block.

Description

Technical Field

[0001] The present invention relates to the field of stamping processing, and specifically to a combined stamping processing device for a U-shaped part with a hole of an automobile component and a use method thereof. Background Art

[0002] Among automobile stamping parts, some become automobile parts directly after stamping, while others become automobile parts after subsequent welding, machining and surface treatment. Due to the different internal structures and functional types of different cars, the forms of automobile stamping parts are diverse;

[0003] A Chinese patent discloses a stamping, bending and punching die, and its publication number is (CN111069418A). The patent adopts a cam mechanism to achieve bending and punching, and the two are carried out simultaneously. Although this method can be implemented, since the cam mechanism is set at the bottom, the height of the entire die needs to be greatly increased. Since the die itself is too heavy, after the height of the bottom of the die is increased, if the support stability of the bottom is insufficient, the stability of the upper die cannot be guaranteed. If the stability of the upper die is to be guaranteed, a higher-strength material is required to support the bottom. Combined with the height, the weight of the die is too high, which makes the loading and unloading and transportation of the die very inconvenient. Summary of the invention

[0004] The object of the present invention is to provide a combined stamping processing device for U-shaped parts with holes of automobile parts and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A combined punching processing device for U-shaped parts with holes of automobile parts, comprising a side partitioning template, an upper die seat, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force applying block, a forming template, and a blanking template;

[0007] Two side partition templates are fixedly connected to both sides of the blanking template, the forming template is fixedly connected to the top surface of the blanking template, the forming template, the upper movable plate, and the upper die seat are slidably connected through guide pillars, and the upper die seat and the upper movable plate are elastically connected through a secondary downward pressure spring;

[0008] The surface of the forming template is provided with a forming groove, the middle part of the forming groove is rotatably connected with a forming block, the bottom surface of the upper movable plate is fixedly connected with a force-applying pressure block matched with the forming block, and the force-applying pressure blocks are formed in pairs with the forming block;

[0009] The top of the upper movable plate is slidably connected with the linkage secondary pressing and punching transmission rod, the inner wall of the force-applying pressure block is provided with a receiving hole, and the receiving hole is slidably connected with a punching rod that is linked and telescopically telescoped by the linkage secondary pressing and punching transmission rod through the up-and-down displacement;

[0010] A waste bin is provided inside the forming block, the bottom of the waste bin is an open structure, and shear holes matching with the punching rod are provided on both sides of the waste bin, and the shear holes are communicated with the waste bin.

[0011] As a further solution of the present invention: a connecting cutting groove is opened on the top of the upper movable plate, a connecting cutting tool is slidably connected in the connecting cutting groove, and the top of the connecting cutting tool is fixedly connected to the upper mold base for separating the molded part from the coil by the connecting cutting tool.

[0012] As a further solution of the present invention: the punching rod is slidably connected to the inside of the storage hole, a section of the punching rod is fixedly connected with a matching wedge block, the bottom end of the linked secondary pressing and punching transmission rod is provided with an inclined surface matching with the matching wedge block, and the matching wedge block and the force-applying pressure block are elastically connected by a return spring.

[0013] As a further solution of the present invention: a switching feed drive is installed on one side of the side partition template, and an output shaft is fixedly connected to the output end of the switching feed drive, and several forming blocks are fixed to each other by connecting shafts, and one of the forming blocks is fixedly connected to the output shaft of the switching feed drive.

[0014] As a further solution of the present invention: the upper and lower ends of the molding groove are both open structures, the top surface of the molding groove is flush with the top surface of the molding template, and the surface of the blanking template is provided with a blanking groove corresponding to the molding groove.

[0015] As a further solution of the present invention: the bottom surface of the blanking template is fixedly connected to two symmetrically distributed support plates, the bottom of the waste bin has a closing transition slope near the open end, and the length and width of the open end of the bottom of the waste bin are both greater than the diameter of the shear hole.

[0016] As a further solution of the present invention: both ends of the side partition template are fixedly connected with a feeding mechanism for positioning the coiled material, and the bottom end of the force-applying pressure block is provided with an anti-scratch chamfer near the corner of the matching wedge block.

[0017] As a further solution of the present invention, a method for using a combined punching processing device for a U-shaped part with a hole of an automobile component comprises:

[0018] S1: Pass the pre-cut C-shaped cutting opening coil through the feeding mechanism between the upper movable plate and the forming template, and pass it out through the other feeding mechanism.

[0019] S2: Push the upper die base to descend through the cylinder at the top of the upper die base. At this time, the upper movable plate slides on the guide post along with the upper die base, and the force-applying block slides into the inside of the forming groove. The two force-applying blocks cooperate with the forming abutting block to extrude, so that the coil at the cutting part is in a U shape. At this time, the upper movable plate contacts the forming template.

[0020] S3: Continue to move. The secondary downward pressure spring undergoes elastic deformation. The upper movable plate fits tightly with the forming template. As the relative distance between the upper die base and the upper movable plate decreases, the connecting cutting tool approaches the connection node between the U-shaped part and the coil until the connecting cutting tool contacts the connection node, realizing the separation of the U-shaped part and the coil.

[0021] S4: Synchronously with S3, as the relative distance between the upper die base and the upper movable plate decreases, the linkage secondary pressing and punching transmission rod slides into the force-applying block under the influence of the upper die base. The cooperating wedge block is affected by the movement of the linkage secondary pressing and punching transmission rod, driving the punching rod to slide out of the receiving hole, contacting the side wall of the U-shaped part on the forming abutting block, and shearing through the cooperation of the punching rod and the shearing hole. The sheared material enters the inside of the waste bin and is discharged through the bottom of the waste bin.

[0022] S5: The upper die base rises, the linkage secondary pressing and punching transmission rod and the connecting cutting tool move upward, the punching rod is received into the receiving hole, the upper movable plate is separated from the forming template, and the forming abutting block is rotated 180 degrees by switching the blanking driving part to unload the profile on the forming abutting block, and then the forming abutting block is rotated 180 degrees again to prepare for secondary stamping.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The present invention adopts an open cavity, forms a bending assembly through the rotating forming abutting block and two force-applying blocks, and arranges the punching linkage mechanism inside the force-applying block and above the upper movable plate, so that the stamping process is carried out inside the forming groove, and at the same time, the positions of the upper die base and the upper movable plate are changed. The U-shaped part on the side wall of the forming abutting block is punched through the linkage part inside the force-applying block. At the same time, during the punching process, the material is put into the waste bin and discharged by dropping. Subsequently, unloading is realized through the reverse rotation of the forming abutting block. The whole device utilizes the processing parts inside the force-applying block and the forming abutting block, so that when the upper movable plate contacts the forming template, punching and discharging waste can be realized inside. At the same time, after the upper movable plate rises, bottom blanking is realized through the rotation of the forming abutting block, greatly reducing the volume of the whole device, reducing the significant increase in self-weight caused by the increase in height, and at the same time reducing the device volume and simplifying the structure. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a three-dimensional schematic diagram of a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0027] Figure 2 It is a three-dimensional schematic diagram of a joint stamping processing device for U-shaped parts with holes in automobile parts after the side partition template is disassembled;

[0028] Figure 3 It is a three-dimensional schematic diagram from one viewing angle of a joint stamping processing device for a U-shaped part with a hole in an automobile component after the middle side partition template is disassembled;

[0029] Figure 4 It is a schematic diagram of the cooperation before stamping of an upper die base, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force applying block, and a forming template in a joint stamping processing device for a U-shaped part with a hole of an automobile component;

[0030] Figure 5 It is a schematic diagram of the bending of an upper die base, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force applying block, and a forming template in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0031] Figure 6 It is a schematic diagram of the side punching of an upper die base, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force pressing block, and a forming template in a joint punching processing device for a U-shaped part with a hole in an automobile component;

[0032] Figure 7 It is a three-dimensional schematic diagram of an upper die base, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force-applying pressure block, and a forming template in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0033] Figure 8 It is a three-dimensional schematic diagram from another perspective of an upper die base, an upper movable plate, a linkage secondary pressing and punching transmission rod, a force applying block, and a forming template in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0034] Fig. 9 It is a three-dimensional schematic diagram of an upper movable plate and a force-applying pressure block in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0035] Fig.10It is a top view schematic diagram of a forming template in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0036] Fig.11 It is a three-dimensional schematic diagram of a forming template in a combined stamping processing device for a U-shaped part with a hole in an automobile component;

[0037] In the figure: 1. Side partition template; 11. Switching blanking drive member; 12. Feeding mechanism; 2. Upper die seat; 21. Connecting cutting tool; 3. Upper movable plate; 31. Secondary downward pressure spring; 32. Connecting cutting groove; 4. Linked secondary pressing and punching transmission rod; 5. Force pressure block; 51. Storage hole; 52. Matching wedge block; 53. Punching rod; 54. Reset spring; 55. Anti-scratch chamfer; 6. Forming template; 61. Forming groove; 62. Forming block; 63. Waste bin; 64. Shear hole; 7. Blanking template; 71. Support plate; 72. Blanking trough. DETAILED DESCRIPTION

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The composition of the present invention

[0039] It includes a side partition template 1, an upper die seat 2, an upper movable plate 3, a linkage secondary pressing and punching transmission rod 4, a force applying block 5, a forming template 6, and a blanking template 7;

[0040] Two side partition templates 1 are fixedly connected to both sides of the blanking template 7, and the forming template 6 is fixedly connected to the top surface of the blanking template 7. The forming template 6, the upper movable plate 3, and the upper die seat 2 are slidably connected through guide pillars, and the upper die seat 2 and the upper movable plate 3 are elastically connected through a secondary downward pressure spring 31;

[0041] A forming groove 61 is provided on the surface of the forming template 6, and a forming stopper 62 is rotatably connected to the middle of the forming groove 61. A force-applying pressure block 5 cooperating with the forming stopper 62 is fixedly connected to the bottom surface of the upper movable plate 3. The force-applying pressure blocks 5 are formed in pairs with the forming stopper 62.

[0042] The top of the upper movable plate 3 is slidably connected with a linkage secondary pressing and punching transmission rod 4, and the inner wall of the force-applying pressure block 5 is provided with a receiving hole 51, and a punching rod 53 is slidably connected in the receiving hole 51, which is linked to the linkage secondary pressing and punching transmission rod 4 in an upward and downward displacement linkage and telescopic manner;

[0043] A waste bin 63 is provided inside the forming block 62. The bottom of the waste bin 63 is an open structure. Shear holes 64 cooperating with the punching rod 53 are provided on both sides of the waste bin 63. The shear holes 64 are connected to the waste bin 63.

[0044] There are two side partition templates 1, which are distributed on both sides of the entire processing mechanism. A vertical sliding space is formed between the two side partition templates 1, which guides multiple templates of the processing mechanism. At the same time, the setting of the side partition template 1 can provide installation space for subsequent expansion mechanisms;

[0045] The upper die base 2 is mainly used for fixed connection with the stamping drive component. The output end of the stamping drive component is fixed to the upper die base 2, thereby driving the upper movable component to slide downward to stamp the material.

[0046] The upper movable plate 3 slides synchronously with the upper die holder 2. After the upper movable plate 3 contacts the forming template 6, the upper die holder 2 is driven to drive the secondary downward pressure spring 31 to undergo elastic deformation, so that the distance between the upper die holder 2 and the upper movable plate 3 changes. In order to control the subsequent hole opening and separation, the hole opening, separation and bending are processed in two stages on the basis of synchronization.

[0047] The linkage secondary pressing and punching transmission rod 4 is located above the upper movable plate 3. Under normal conditions, the linkage secondary pressing and punching transmission rod 4 is only in contact with the upper die base 2. When the upper die base 2 and the upper movable plate 3 do not undergo elastic deformation, the linkage secondary pressing and punching transmission rod 4 will not move. When the upper die base 2 and the upper movable plate 3 are displaced, the linkage secondary pressing and punching transmission rod 4 is affected by the contact between the upper die base 2 and the upper movable plate 3 and starts to perform the hole opening process.

[0048] The force-applying pressure block 5 is located below the upper movable plate 3. Two force-applying pressure blocks 5 are provided. When the two force-applying pressure blocks 5 enter the interior of the forming groove 61, they cooperate with the forming block 62 to form a bending cavity, and the material is squeezed through the force-applying pressure block 5 and the forming block 62 to bend the material into shape.

[0049] The forming template 6 provides an area for the entire processing process. Bending, punching and separation are all performed in the forming groove 61. The waste material and the U-shaped piece can be separated and unloaded by the rotating forming block 62.

[0050] The blanking template 7 is mainly used to further guide out the U-shaped parts and waste materials discharged by the forming template 6. The height of the blanking template 7 is raised by the support plate 71 so that a tray can be set below for collection.

[0051] The use process of the present invention

[0052] Bending stage

[0053] The coil is guided and conveyed by two feeding mechanisms 12 to slide above the forming template 6. The coil moves to the processing area, the conveying mechanism stops, and the stamping drive drives the side partition template 1 to descend. At this time, affected by the guide column, the upper die seat 2 and the upper movable plate 3 slide downward and slide between the two side partition templates 1 until the force-applying pressure block 5 first contacts the coil. The coil is affected by the pressure of the force-applying pressure block 5 and is rolled inward. The anti-scratch chamfer 55 prevents the corner from contacting and sliding with the coil, causing damage to the outer wall of the coil. As the upper die seat 2 and the upper movable plate 3 descend, until the upper movable plate 3 is completely in contact with the forming template 6, the forming The mold block 62, the upper movable plate 3 and the force-applying pressure block 5 completely bend the coil into shape. At this time, the displacement between the upper mold base 2 and the upper movable plate 3 may be affected by the elastic deformation of the secondary downward pressure spring 31 driven by the self-weight of the upper movable plate 3 and the mechanical error, causing a slight displacement change between the upper mold base 2 and the upper movable plate 3. However, there is a margin between the connecting cutting groove 32 and the connecting cutting tool 21, and between the storage hole 51 and the punching rod 53. A slight position change will not cause the connecting cutting tool 21 to cut the material, and the punching rod 53 will not be ejected from the storage hole 51. At this time, the U-shaped piece is formed, but it is not separated from the coil.

[0054] Segmentation phase

[0055] A connecting cutting groove 32 is provided at the top of the upper movable plate 3, and a connecting cutting tool 21 is slidably connected in the connecting cutting groove 32. The top of the connecting cutting tool 21 is fixedly connected to the upper die base 2, and is used to separate the molded part from the coil by the connecting cutting tool 21.

[0056] As the driving member continues to press downward, the connecting cutting tool 21 moves downward in the connecting cutting groove 32 until the connecting cutting tool 21 cuts the connection node between the U-shaped member and the coil, so that the U-shaped member is completely separated from the coil. At this time, the U-shaped member is a semi-finished product.

[0057] Punching phase (concurrent with separation phase)

[0058] The punching rod 53 is slidably connected to the inside of the storage hole 51, and a section of the punching rod 53 is fixedly connected to a matching wedge block 52. The bottom end of the linkage secondary pressing punching transmission rod 4 is provided with an inclined surface that matches the matching wedge block 52. The matching wedge block 52 and the force-applying pressure block 5 are elastically connected through a reset spring 54. The bottom surface of the blanking template 7 is fixedly connected to two symmetrically distributed support plates 71. The bottom of the waste bin 63 is provided with a closing transition inclined surface near the open end. The length and width of the open end at the bottom of the waste bin 63 are both greater than the diameter of the shear hole 64.

[0059] Although the punching stage and the separation stage are carried out simultaneously, during this process, the U-shaped part is always pressed by the force-applying pressure block 5, the forming block 62, and the upper movable plate 3. At this time, the U-shaped part will not be displaced. At this time, after the displacement of the upper die seat 2 and the upper movable plate 3 changes, the upper die seat 2 supports the linkage secondary pressing and punching transmission rod 4 and pushes the linkage secondary pressing and punching transmission rod 4 downward, so that the inclined surface at the bottom of the linkage secondary pressing and punching transmission rod 4 contacts and cooperates with the inclined surface of the matching wedge block 52, so that the matching wedge block 52 is affected by the inclined surface and moves inward, and the punching rod 53 is affected by the matching wedge block. The waste material after shearing is pushed into the waste bin 63 by the punching rod 53. As the waste bin 63 has a closing guide mechanism at the bottom, the material is guided and falls to the bottom through the bottom channel of the waste bin 63, and falls to the tray in the space formed by the support plate 71 below the blanking template 7 through the blanking groove 72 on the blanking template 7.

[0060] Separation phase

[0061] The driving member is lifted, and the upper die seat 2 moves upward. Although the secondary downward pressure spring 31 is released at this time, the secondary downward pressure spring 31 is still in an elastic contraction state. At this time, the upper movable plate 3 still maintains a contact state with the forming template 6 until the secondary downward pressure spring 31 is completely released. When the upper die seat 2 and the upper movable plate 3 are displaced, the connecting cutting tool 21 is retracted into the connecting cutting groove 32, and the secondary pressing and punching transmission rod 4 moves upward. The reset spring 54 is elastically deformed to push the matching wedge block 52 to slide to both sides, so that the punching rod 53 is pulled out from the shear hole 64 and the storage hole 51. At this time, the U-shaped member can be separated from the forming block 62 until the upper movable plate 3 is completely separated from the forming template 6, and the pressure block 5 rises from the forming groove 61.

[0062] Unloading stage

[0063] A switching blanking drive member 11 is installed on one side of the side partition template 1, and an output shaft is fixedly connected to the output end of the switching blanking drive member 11. A plurality of forming blocks 62 are fixed to each other through a connecting shaft, and one of the forming blocks 62 is fixedly connected to the output shaft of the switching blanking drive member 11. The upper and lower ends of the forming groove 61 are both open structures, and the top surface of the forming groove 61 is flush with the top surface of the forming template 6. A blanking groove 72 corresponding to the forming groove 61 is opened on the surface of the blanking template 7;

[0064] By switching the unloading drive member 11 to drive the driving shaft to rotate, a number of forming blocks 62 rotate in the forming groove 61. At this time, the U-shaped part located on the top of the forming block 62 rotates to the bottom, so that the U-shaped part falls under the influence of gravity. As an expansion of unloading, an inflation hole is set on the top of the forming block 62, and a vent pipe is set inside the connecting shaft between adjacent forming blocks 62. A dynamic sealing structure is used to connect the air pipe at one end of the shaft, and the U-shaped part on the forming block 62 is pushed out to the tray below the blanking template 7 by gas for collection.

[0065] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined stamping device for U-shaped parts with holes for automobile parts, characterized in that: It comprises a side partition template (1), an upper die seat (2), an upper movable plate (3), a linkage secondary pressing and punching transmission rod (4), a force applying block (5), a forming template (6), and a blanking template (7); Two side partition templates (1) are fixedly connected to both sides of the blanking template (7); the forming template (6) is fixedly connected to the top surface of the blanking template (7); the forming template (6), the upper movable plate (3) and the upper die seat (2) are slidably connected via guide pillars; the upper die seat (2) and the upper movable plate (3) are elastically connected via a secondary downward pressure spring (31); The surface of the forming template (6) is provided with a forming groove (61), the middle part of the forming groove (61) is rotatably connected to a forming block (62), the bottom surface of the upper movable plate (3) is fixedly connected to a force-applying pressure block (5) that cooperates with the forming block (62), and the force-applying pressure blocks (5) are arranged in groups of two to cooperate with the forming block (62) for forming; The top of the upper movable plate (3) is slidably connected to the linkage secondary pressing and punching transmission rod (4); the inner wall of the force-applying pressure block (5) is provided with a receiving hole (51); the receiving hole (51) is slidably connected to a punching rod (53) that moves up and down in linkage with the linkage secondary pressing and punching transmission rod (4) to cooperate with telescopic movement; A waste bin (63) is provided inside the molding stopper (62), the bottom of the waste bin (63) is an open structure, and shear holes (64) matching with the punching rod (53) are provided on both sides of the waste bin (63), and the shear holes (64) are connected to the waste bin (63); A connecting cutting groove (32) is provided on the top of the upper movable plate (3), a connecting cutting tool (21) is slidably connected in the connecting cutting groove (32), and the top of the connecting cutting tool (21) is fixedly connected to the upper die seat (2) for separating the molded part from the coil by means of the connecting cutting tool (21); The punching rod (53) is slidably connected to the inside of the receiving hole (51); a section of the punching rod (53) is fixedly connected to a matching wedge block (52); a bottom end of the linkage secondary pressing punching transmission rod (4) is provided with an inclined surface matching the matching wedge block (52); the matching wedge block (52) and the force applying block (5) are elastically connected via a return spring (54); A switching material discharge drive member (11) is installed on one side of the side partition template (1), and an output shaft is fixedly connected to the output end of the switching material discharge drive member (11), and a plurality of the forming blocks (62) are fixed to each other via a connecting shaft, and one of the forming blocks (62) is fixedly connected to the output shaft of the switching material discharge drive member (11).

2. The combined punching processing device for U-shaped parts with holes of automobile parts according to claim 1 is characterized in that: The upper and lower ends of the molding groove (61) are both open structures, the top surface of the molding groove (61) is flush with the top surface of the molding template (6), and the surface of the blanking template (7) is provided with a blanking groove (72) corresponding to the molding groove (61).

3. The combined punching processing device for U-shaped parts with holes of automobile parts according to claim 2 is characterized in that: The bottom surface of the blanking template (7) is fixedly connected with two symmetrically distributed support plates (71). The bottom of the waste bin (63) has a converging transition inclined surface near the open end, and the length and width of the open end of the bottom of the waste bin (63) are both larger than the diameter of the cutting hole (64).

4. The combined punching processing device for U-shaped parts with holes of automobile parts according to claim 3 is characterized in that: Feeding mechanisms (12) for positioning the coil are fixedly connected to both ends of the side separation template (1). An anti-scratch chamfer (55) is provided at the corner of the bottom end of the force-applying pressing block (5) near the mating wedge block (52).

5. The combined punching device for U-shaped parts with holes for automobile parts according to claim 4 is characterized in that: The usage method of the processing device includes: S1: Pass the coil with a pre-cut C-shaped cutting opening through the space between the upper movable plate (3) and the forming template (6) via the feeding mechanism (12), and pass it out through the other feeding mechanism (12). S2: Push the upper die base (2) to descend by the cylinder at the top of the upper die base (2). At this time, the upper movable plate (3) slides on the guide post along with the upper die base (2), and the force-applying pressing block (5) slides into the forming groove (61). The two force-applying pressing blocks (5) cooperate with the forming abutting block (62) to squeeze, making the coil at the cutting part in a U shape. At this time, the upper movable plate (3) contacts the forming template (6). S3: Continue to move, the secondary compression spring (31) undergoes elastic deformation, and the upper movable plate (3) closely fits with the forming template (6). The connecting cutting tool (21) approaches the connection node between the U-shaped part and the coil as the relative distance between the upper die base (2) and the upper movable plate (3) decreases, until the connecting cutting tool (21) contacts the connection node, realizing the separation of the U-shaped part and the coil. S4: Synchronously with S3, as the relative distance between the upper die base (2) and the upper movable plate (3) decreases, the linkage secondary pressing and punching transmission rod (4) slides into the force-applying pressing block (5) under the influence of the upper die base (2). The mating wedge block (52) is affected by the movement of the linkage secondary pressing and punching transmission rod (4), driving the punching rod (53) to slide out of the receiving hole (51), contacting the side wall of the U-shaped part on the forming abutting block (62), and shearing through the cooperation of the punching rod (53) and the cutting hole (64). The sheared material enters the waste bin (63) and is discharged from the bottom of the waste bin (63). S5: The upper die base (2) rises, the linkage secondary pressing and punching transmission rod (4) and the connecting cutting tool (21) move upward, the punching rod (53) retracts into the receiving hole (51), the upper movable plate (3) separates from the forming template (6). The forming abutting block (62) is rotated 180 degrees by switching the blanking driving part (11) to unload the profile on the forming abutting block (62), and then the forming abutting block (62) is rotated 180 degrees again to prepare for secondary stamping.

Images