CN115106442A

CN115106442A - Stamping die and welding and riveting process method

Info

Publication number: CN115106442A
Application number: CN202210746113.0A
Authority: CN
Inventors: 赵洪林; 董月厚; 王建春; 杨清华
Original assignee: TIANJIN BOSHI FENGTONG TECHNOLOGY CO LTD
Current assignee: Tianjin Xiangshuo Body Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-27
Anticipated expiration: 2042-06-28
Also published as: CN115106442B

Abstract

The invention discloses a stamping die and a welding and riveting process method, which belong to the technical field of stamping forming process equipment. A spring guide column is vertically arranged on the discharging base, an integrally formed assembly is movably sleeved on the spring guide column, and a spring is sleeved on the spring guide column and used for supporting an upper template, so that the template is abutted against the punching machine, and the punching machine drives the template to move together. During the use, the pan feeding subassembly carries out the blanking process to the material area, and the subassembly of bending then bends the process to the material area, and integrated into one piece subassembly rear side is provided with shaping blanking subassembly, and the effect of automatic feed can be realized to integrated into one piece subassembly to accomplish fixing between nut and the material area, shaping blanking subassembly then is used for cutting fashioned hardware at last. The nut connecting structure is reasonable in design and compact in structure, and solves the problem that the connecting strength between the nut and hardware in the prior art is difficult to guarantee.

Description

Stamping die and welding and riveting process method

Technical Field

The invention relates to the technical field of punch forming process equipment, in particular to a stamping die and a welding and riveting process method.

Background

The small hardware of the riveting small nut is generally used as a connecting piece and the like, and the production process of the connecting piece and the like is generally finished by adopting two independent unrelated systems at present. Firstly, stamping the material belt into single stamping parts, then placing the hardware stamping parts prepared in the first step on a lower template, placing nuts at corresponding positions and then carrying out press riveting through riveting punches. The discontinuous two-time production method for finishing the production of the small stamping part by using the die and then pressing and riveting the small stamping part and the nut by using the riveting jig has at least three disadvantages: firstly, manual operation is labor-consuming and time-consuming, production efficiency is low, and labor cost is high; secondly, the quality of the product is difficult to ensure, and the connection strength between the nut and the hardware is difficult to ensure; thirdly, the manual operation is difficult to keep the attention of operators highly concentrated all the time, and safety accidents are easily induced.

Disclosure of Invention

Therefore, the invention provides a stamping die and a welding and riveting process method, which realize automatic nut supply through a single die, and improve the product quality by combining resistance pressure welding and riveting processes so as to solve the problem that the connection strength between a nut and hardware is difficult to guarantee in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

according to a first aspect of the present invention,

the invention provides a stamping die which comprises a discharging base, a forming blanking assembly, an integrally forming assembly, a bending assembly, a feeding assembly and spring guide columns, wherein four spring guide columns are vertically arranged on the discharging base, the integrally forming assembly is movably sleeved on the four spring guide columns, the bending assembly and the feeding assembly are sequentially arranged on the front side of the integrally forming assembly, and the forming blanking assembly is arranged on the rear side of the integrally forming assembly.

Further, the integrated into one piece subassembly includes push rod, material loading passageway, feed passage, connecting rod, welds and rivets forming mechanism and cope match-plate pattern, shaping blanking subassembly sets up and is welding the forming mechanism rear side of riveting, weld and rivet forming mechanism and feed passage intercommunication, the feed passage interpolation is equipped with the push rod, the push rod is articulated with the one end of connecting rod, the other end and the cope match-plate pattern of connecting rod are articulated, material loading passageway side and feed passage intercommunication.

Further, the welding and riveting forming mechanism comprises a cooling cylinder, a conductive piston rod, a reset switch, a riveting column and a cooling conductive seat, wherein the cooling cylinder is arranged on the upper template, the conductive piston rod is arranged in the cooling cylinder, the conductive piston rod is aligned with the riveting column, the riveting column is arranged in the cooling conductive seat, the reset switch is arranged between the cooling conductive seat and the conductive piston rod, and water cooling channels are arranged in the cooling cylinder and the cooling conductive seat.

Furthermore, the conductive piston rod comprises a spring air blowing pipe, a conductive piston pipe and a needle valve, the conductive piston pipe is movably inserted in the cooling cylinder, the spring air blowing pipe is arranged in the conductive piston pipe, and the needle valve is arranged at the end part of the spring air blowing pipe.

Further, arrange the material base and include spacing post, lower bolster, support base, finished product slide and unloading slide, the cope match-plate pattern offsets with spacing post, the vertical setting of spacing post is on the lower bolster, the tip of lower bolster is provided with the finished product slide, the lower bolster bottom is provided with the support base, set up the unloading slide on the support base.

Further, the pan feeding subassembly includes mounting panel, last plug-in components board, feed inlet, lower plug-in components board and lower mounting panel, the mounting panel is installed to the cope match-plate pattern, the fixed plug-in components board that is provided with in bottom of going up the mounting panel, be provided with the punching cutter on the last plug-in components board, it is provided with down plug-in components board to go up plug-in components board lower extreme, lower plug-in components board is installed under on the mounting panel, go up and be provided with the feed inlet between plug-in components board and the lower plug-in components board.

Further, the bending assembly comprises a female die, a male die, a plug board and an insert board, the female die is installed on the upper die plate and matched with the male die, the male die is inserted into the plug board, the plug board is arranged on the insert board, and the insert board is fixed with the male die in a threaded connection mode.

Furthermore, the forming blanking assembly comprises a positioning block, a positioning plate, a punch, a blanking block and a counter, the upper die plate is fixed with the positioning block in a threaded manner, the positioning block abuts against the punch, the punch is inserted into the positioning plate and aligned with the blanking block, and the counter is arranged at the end of the blanking block.

Further, the blanking block comprises a separating groove, a blanking groove and a block body, the punch is aligned with the separating groove, the separating groove is arranged at the center of the block body, and the blanking groove is arranged on two sides of the block body.

According to a second aspect of the present invention,

the invention relates to a welding and riveting process method, which applies the stamping die provided above and comprises the following steps;

s1, repeatedly opening and closing the upper template and the lower template to move back and forth, but the cooling cylinder is always started before the upper template, so that the conductive piston rod extends out first;

s2, electrically connecting the conductive piston rod with the cooling conductive seat through a reset switch after the conductive piston rod extends out, so that current passes through the nut and the material belt;

s3, the upper die plate moves downwards to drive the cooling cylinder to press the conductive piston rod downwards, the nut is riveted on the material belt, then the needle valve penetrates through the nut to abut against the material belt, meanwhile, the material belt abuts against the riveting column, the spring air blowing pipe ejects out of the part punched on the material belt out of the riveting column, and meanwhile, the needle valve is ejected to release strong air flow to the riveting column.

The invention has the following advantages:

this technical scheme has combined riveting and resistance welding technology in the method, when concrete implementation, at first make the electric current pass through nut and material area, because can produce a large amount of heats through the electric current between nut and the material area, thereby make the material area soften and melt even, recycle stamping die and exert certain power to the nut this moment and make nut and material area combine closely together, this technical scheme utilizes the cope match-plate pattern to remove simultaneously, it is concertina movement in feed channel to drive the push rod through the connecting rod, thereby realize the effect of automatic feed nut, compared the prior art, this technical scheme is effectual has saved the manpower, improve product quality, the problem that joint strength between nut and the hardware is difficult to guarantee among the prior art has been solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a perspective view of a stamping die provided by the present invention;

FIG. 2 is a perspective view of a forming and blanking assembly of a stamping die according to the present invention;

fig. 3 is a cross-sectional view of a conductive piston rod of a stamping die according to the present invention;

FIG. 4 is a perspective view of a rivet welding forming mechanism of a stamping die according to the present invention;

FIG. 5 is a perspective view of an integrally formed component of a stamping die according to the present invention;

FIG. 6 is a perspective view of a blanking block of a stamping die according to the present invention;

FIG. 7 is a perspective view of a bending assembly of a stamping die according to the present invention;

FIG. 8 is a perspective view of a feeding assembly of a stamping die according to the present invention;

FIG. 9 is a perspective view of a discharge base of a stamping die according to the present invention;

fig. 10 is a perspective view of a material strip forming of a stamping die according to the present invention;

FIG. 11 is a front view of an integrally formed component of a stamping die provided in accordance with the present invention;

in the figure: 1, a discharge base; 11, a limiting column; 12, a lower template; 13 supporting the base; 14, a finished product slide way; 15 a blanking slideway; 2, forming a blanking assembly; 21, positioning blocks; 22, positioning a plate; 23 punching head; 24 blanking blocks; 241 separating groove; 242 feeding chute; 243 block body; 25, a counter; 3 integrally forming the components; 31 a push rod; 32 a feeding channel; 33 a feed channel; 34 a connecting rod; 35 welding and riveting forming mechanism; 351 cooling the cylinder; 352 a conductive piston rod; 3251 spring blowing tube; 3252 an electrically conductive piston tube; 3253 needle valve; 353 a reset switch; 354 riveting columns; 355 cooling the conductive socket; 36, mounting a template; 4, bending the assembly; 41, a female die; a 42 male die; 43 inserting plates; 44 insert plate; 5, feeding a material assembly; 51, mounting a plate; 52, a plug-in board is arranged; a 53 feed inlet; 54 lower plug-in board; 55 a lower mounting plate; 6 spring guide post.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The invention discloses a stamping die which comprises a discharging base 1, a forming blanking assembly 2, an integral forming assembly 3, a bending assembly 4, a feeding assembly 5 and a spring guide post 6. As shown in fig. 1, the discharge base 1 is vertically provided with four spring guide posts 6, the four spring guide posts 6 are movably sleeved with an integrally formed assembly 3, the spring guide posts 6 mainly play a guiding role, meanwhile, the spring guide posts 6 are sleeved with springs for supporting the upper template 36, and the upper template 36 abuts against the punching machine, so that the upper template 36 always moves along with the punching machine. The front side of the integrated forming assembly 3 is sequentially provided with a bending assembly 4 and a feeding assembly 5, the feeding assembly 5 can perform a blanking process on the material belt, and the blanking process is shown in fig. 10, while the bending assembly 4 performs a bending process on the material belt, which is shown in fig. 10. The rear side of the integrated forming component 3 is provided with a forming blanking component 2, the integrated forming component 3 can realize the effect of automatic feeding and complete the fixation between the nut and the material belt. The forming and blanking component 2 is used for cutting formed hardware at last.

According to an embodiment of the present disclosure, the integrally-formed assembly 3 includes a push rod 31, a feeding channel 32, a feeding channel 33, a connecting rod 34, a welding and riveting forming mechanism 35, and an upper mold plate 36. The forming blanking assembly 2 is arranged on the rear side of the welding and riveting forming mechanism 35, the welding and riveting forming mechanism 35 is communicated with the feeding channel 33, as shown in fig. 5 and 11, a push rod 31 is inserted into the feeding channel 33, the push rod 31 is hinged to one end of a connecting rod 34, the other end of the connecting rod 34 is hinged to an upper template 36, when the upper template 36 moves, the push rod 31 can be driven to do telescopic movement in the feeding channel 33 through the connecting rod 34, the side surface of the feeding channel 32 is communicated with the feeding channel 33, the feeding channel 33 is connected with a vibration feeding machine, the vibration feeding machine sends batched nuts into the feeding channel 33 through the feeding channel 32 one by one, and then sends the batched nuts into the welding and riveting forming mechanism 35 through the rod 31.

According to an embodiment of the present disclosure, the welding and riveting forming mechanism 35 includes a cooling cylinder 351, a conductive piston rod 352, a reset switch 353, a riveting column 354, and a cooling conductive seat 355. The upper template 36 is provided with a cooling cylinder 351, a conductive piston rod 352 is arranged in the cooling cylinder 351, the conductive piston rod 352 is aligned to a riveting column 354, the riveting column 354 is arranged in a cooling conductive seat 355, a reset switch 353 is arranged between the cooling conductive seat 355 and the conductive piston rod 352, when the cooling cylinder 351 pushes the conductive piston rod 352 to move downwards, the conductive piston rod 352 presses a nut on the material belt through the reset switch 353, the cooling cylinder 351 and the cooling conductive seat 355 form a conductive loop, and a large amount of heat energy is generated between the nut and the material belt under the action of current to enable the material belt to be softened. And water cooling channels are arranged in the cooling cylinder 351 and the cooling conductive seat 355, so that the temperature of the cooling conductive seat 355 and the conductive piston rod 352 is reduced, and the hardness of the cooling conductive seat is maintained. The specific process flow is that the conductive piston rod 352 firstly pushes the nut to contact with the material belt in one step to form a current path, heat energy is generated on the material belt to increase the temperature of the material belt, then the punching machine drives the upper template 36 to move downwards, then the conductive piston rod 352 is driven to move downwards continuously, the conductive seat 355 is cooled to punch holes on the material belt in a matched mode and rivet the nut in the holes, and meanwhile current is continuously introduced for heating, so that the material belt is partially melted to weld and fix the nut on the material belt. When the conductive piston rod 352 moves upwards, the conductive piston rod 352 is withdrawn from the reset switch 353, at this time, the electric heating is stopped, and the material tape advances the conductive piston rod 352 to prepare for the next process step, as shown in fig. 4, the reset switch 353 is a contact switch with a torsion spring.

According to an embodiment of the present disclosure, the conductive piston rod 352 includes a spring blowing tube 3251, a conductive piston tube 3252 and a needle valve 3253, as shown in fig. 3, the conductive piston tube 3252 is movably inserted into the cooling cylinder 351, and the conductive piston tube 3252 is a conductor for forming a path with the cooling cylinder 351, so as to weld the nut and the material tape. Be provided with spring gas blow pipe 3251 in the electrically conductive piston pipe 3252, spring gas blow pipe 3251 can stretch out and insert in the nut at electrically conductive piston pipe 3252 to play the effect of location, spring gas blow pipe 3251's tip is provided with needle valve 3253 simultaneously, receives the extrusion and when opening when the needle valve, and the air current gushes out from needle valve 3253, not only plays the effect for the material area cooling, can also reduce the atmospheric pressure in the cooling cylinder 351 fast, avoids the interior cope match-plate pattern 36 of cooling cylinder 351 to crush.

According to a specific embodiment of the disclosure, the discharge base 1 includes a limiting column 11, a lower template 12, a supporting base 13, a finished product slideway 14 and a blanking slideway 15, as shown in fig. 9, an upper template 36 abuts against the limiting column 11, and the limiting column 11 is vertically arranged on the lower template 12 to prevent the die from being crushed by a punching machine. The end part of the lower template 12 is provided with a finished product slide way 14, the bottom of the lower template 12 is provided with a support base 13, a blanking slide way 15 is arranged on the support base 13, the finished product slide way 14 is used for conveying finished hardware, and the blanking slide way 15 is used for conveying blanked leftover materials.

According to an embodiment of the disclosure, the feeding assembly 5 includes an upper mounting plate 51, an upper plug-in board 52, a feeding port 53, a lower plug-in board 54, and a lower mounting plate 55, as shown in fig. 8, the upper mounting plate 51 is mounted on the upper die plate 36, the upper plug-in board 52 is fixedly disposed at the bottom of the upper mounting plate 51, and a punching knife is disposed on the upper plug-in board 52, so that the upper die plate 36 can drive the punching knife to move, thereby punching and blanking the material strip by using the punching knife, and forming the shape of the material strip as shown in fig. 10. The lower end of the upper plug-in board 52 is provided with a lower plug-in board 54, the lower plug-in board 54 is mounted on a lower mounting board 55, and a feed opening 53 is formed between the upper plug-in board 52 and the lower plug-in board 54, so that the material belt can be smoothly guided into the die.

According to one embodiment of the disclosure, the bending assembly 4 includes a female die 41, a male die 42, a plug plate 43 and an insert plate 44, the female die 41 is mounted on the upper die plate 36, the female die 41 is matched with the male die 42, the male die 42 is inserted into the plug plate 43, the plug plate 43 is disposed on the insert plate 44, and the insert plate 44 is screwed and fixed with the male die 42. When the lower die plate 36 is moved downwards, the female die 41 and the male die 42 are brought together and press the remaining portion of the strip of material, causing it to be plastically deformed, as shown in fig. 7.

According to one embodiment of the disclosure, the forming and blanking assembly 2 includes a positioning block 21, a positioning plate 22, a punch 23, a blanking block 24 and a counter 25, the upper die plate 36 is fixed to the positioning block 21 by screwing, the positioning block 21 abuts against the punch 23, as shown in fig. 6 and 2, the punch 23 is inserted into the positioning plate 22, the punch 23 is aligned with the blanking block 24, the punch 23 is used for punching the material belt finally, so that the product is formed finally, and the counter 25 is arranged at the end of the blanking block 24 for counting the number of the product.

According to an embodiment of the present disclosure, the blanking block 24 includes a separating groove 241, a blanking groove 242, and a block 243, the punch 23 is aligned with the separating groove 241, the final-blanked leftover material can be fed into the separating groove 241, the separating groove 241 is disposed at the center of the block 243, the blanking grooves 242 are disposed at both sides of the block 243, and the blanking grooves 242 are communicated with the finished product slide 14 for feeding the product out of the die.

Example 2

The invention discloses a welding and riveting process method, which is applied to a stamping die provided by the invention and is characterized by comprising the following steps;

s1, the upper mold plate 36 and the lower mold plate 12 are repeatedly opened and closed to make a reciprocating motion, but the cooling cylinder 351 is always started before the upper mold plate 36, so that the conductive piston rod 352 extends first, and thus, current passes through the conductive piston rod 352, the nut, the material strap and the cooling conductive seat 355, so as to electrically heat the nut and the material strap in advance, and the material strap is softened and easily broken by the riveting column 354;

s2, electrically connecting the conductive piston rod 352 with the cooling conductive seat 355 through the reset switch 353 after extending out, so that current passes through the nut and the material belt;

s3, the upper die plate 36 moves downwards to drive the cooling cylinder 351 to press the conductive piston rod 352 downwards, the nut is riveted on the material belt, then the needle valve 3253 penetrates through the nut to be abutted against the material belt, meanwhile, the material belt is abutted against the riveting column 354, the spring blowing pipe 3251 ejects out the punched part of the material belt from the riveting column 354, meanwhile, the needle valve 3253 is ejected to release strong airflow to the riveting column 354, therefore, the cooling effect is achieved in the process of welding and riveting and shaping of the nut material belt, meanwhile, the pressure of the cooling cylinder 351 can be timely relieved, and the cooling cylinder 351 is prevented from being damaged.

The using process of the invention is as follows:

the invention discloses a stamping die and a welding and riveting process method, when in specific use, firstly a material belt enters from a feed inlet 53, the material belt is punched and blanked by a blanking cutter, the material belt is extruded and bent by a female die and a male die to be molded, then the material belt enters into an integrated molding assembly 3, a cooling cylinder 351 is started before an upper template 36, a conductive piston rod 352 extends out first, thus current passes through the conductive piston rod 352, a nut, the material belt and a cooling conductive seat 355, thus the nut and the material belt are electrically heated in advance, the material belt is softened and is extruded and broken by a riveting column 354, finally a punch 23 punches the material belt, a product is molded finally, and a counter 25 is arranged at the end part of a blanking block 24 and used for calculating the number of the product.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a stamping die, its characterized in that, including arranging material base (1), shaping blanking subassembly (2), integrated into one piece subassembly (3), bend subassembly (4), pan feeding subassembly (5) and spring guide post (6), arrange material base (1) and go up vertical four spring guide posts (6) that are provided with, four the activity cover is equipped with integrated into one piece subassembly (3) on spring guide post (6), integrated into one piece subassembly (3) front side has set gradually bending subassembly (4) and pan feeding subassembly (5), integrated into one piece subassembly (3) rear side is provided with shaping blanking subassembly (2).

2. The stamping die as claimed in claim 1, wherein the integrally formed assembly (3) comprises a push rod (31), a feeding channel (32), a feeding channel (33), a connecting rod (34), a welding and riveting forming mechanism (35) and an upper die plate (36), the forming and blanking assembly (2) is arranged at the rear side of the welding and riveting forming mechanism (35), the welding and riveting forming mechanism (35) is communicated with the feeding channel (33), the push rod (31) is inserted into the feeding channel (33), the push rod (31) is hinged to one end of the connecting rod (34), the other end of the connecting rod (34) is hinged to the upper die plate (36), and the side surface of the feeding channel (32) is communicated with the feeding channel (33).

3. The stamping die as recited in claim 2, wherein the welding and riveting forming mechanism (35) comprises a cooling cylinder (351), a conductive piston rod (352), a reset switch (353), a riveting column (354) and a cooling conductive seat (355), the cooling cylinder (351) is arranged on the upper template (36), the conductive piston rod (352) is arranged in the cooling cylinder (351), the conductive piston rod (352) is aligned with the riveting column (354), the riveting column (354) is arranged in the cooling conductive seat (355), the reset switch (353) is arranged between the cooling conductive seat (355) and the conductive piston rod (352), and water cooling channels are respectively arranged in the cooling cylinder (351) and the cooling conductive seat (355).

4. The stamping die of claim 3, wherein the conductive piston rod (352) comprises a spring blow-off pipe (3251), a conductive piston pipe (3252) and a needle valve (3253), the conductive piston pipe (3252) is movably inserted in the cooling cylinder (351), the spring blow-off pipe (3251) is arranged in the conductive piston pipe (3252), and the needle valve (3253) is arranged at the end of the spring blow-off pipe (3251).

5. The stamping die according to claim 2, wherein the discharge base (1) comprises a limiting column (11), a lower template (12), a supporting base (13), a finished product slide way (14) and a blanking slide way (15), the upper template (36) abuts against the limiting column (11), the limiting column (11) is vertically arranged on the lower template (12), the finished product slide way (14) is arranged at the end of the lower template (12), the supporting base (13) is arranged at the bottom of the lower template (12), and the blanking slide way (15) is arranged on the supporting base (13).

6. The stamping die as recited in claim 2, wherein the feeding assembly (5) comprises an upper mounting plate (51), an upper plug-in board (52), a feeding port (53), a lower plug-in board (54) and a lower mounting plate (55), the upper mounting plate (51) is mounted on the upper die plate (36), the upper plug-in board (52) is fixedly arranged at the bottom of the upper mounting plate (51), a punching knife is arranged on the upper plug-in board (52), the lower plug-in board (54) is arranged at the lower end of the upper plug-in board (52), the lower plug-in board (54) is mounted on the lower mounting plate (55), and the feeding port (53) is arranged between the upper plug-in board (52) and the lower plug-in board (54).

7. A stamping die according to claim 2, wherein the bending assembly (4) comprises a female die (41), a male die (42), an insert plate (43) and an insert plate (44), the female die (41) is mounted on the upper die plate (36), the female die (41) is matched with the male die (42), the male die (42) is inserted into the insert plate (43), the insert plate (43) is arranged on the insert plate (44), and the insert plate (44) is fixed with the male die (42) in a threaded manner.

8. The stamping die as claimed in claim 2, wherein the forming blanking assembly (2) comprises a positioning block (21), a positioning plate (22), a punch (23), a blanking block (24) and a counter (25), the upper die plate (36) is fixed to the positioning block (21) in a threaded manner, the positioning block (21) abuts against the punch (23), the punch (23) is inserted into the positioning plate (22), the punch (23) is aligned with the blanking block (24), and the counter (25) is arranged at the end of the blanking block (24).

9. The stamping die of claim 8, wherein the blanking block (24) includes a separating groove (241), a blanking groove (242), and a block (243), the punch (23) is aligned with the separating groove (241), the separating groove (241) is disposed at the center of the block (243), and the blanking groove (242) is disposed on both sides of the block (243).

10. A welding and riveting process, which comprises the step of applying a stamping die as set forth in claim 4, wherein the welding and riveting process comprises the following steps;

s1, repeatedly opening and closing the upper template (36) and the lower template (12) to do reciprocating motion, but the cooling cylinder (351) is always started before the upper template (36) so that the conductive piston rod (352) extends out first;

s2, electrically connecting the conductive piston rod (352) with the cooling conductive seat (355) through a reset switch (353) after the conductive piston rod extends out, so that current passes through the nut and the material belt;

s3, the upper template (36) moves downwards to drive the cooling cylinder (351) to press the conductive piston rod (352) downwards, the nut is riveted on the material belt, then the needle valve (3253) penetrates through the nut to abut against the material belt, meanwhile, the material belt abuts against the riveting column (354), the punched part on the material belt is ejected out of the riveting column (354) through the spring air blowing pipe (3251), and meanwhile, the needle valve (3253) is ejected to release strong air flow to the riveting column (354).