CN218224270U - Continuous stamping die of vane type spring holder - Google Patents

Abstract

The utility model provides a continuous stamping die of vane type spring holder, include: the device comprises an upper die assembly and a lower die assembly, wherein a punching module, a ball head downward stretching module, a ball head upward reverse stretching module, a ball head stretching forming module, a ball head stretching in-place forming module, a ball head contour shaping module, a positioning punching module, a blade first forward extending stretching module, a blade second forward extending stretching module, a blade third forward extending stretching forming module, a blade contour shaping module, a flange face forming module, a ball head convex hull hole blanking module, a convex hull hole stretching hole flanging module, a semi-finished product upward blanking module and a finished product blanking module are sequentially arranged between the upper die assembly and the lower die assembly from left to right according to the advancing direction of a care strip plate. The utility model discloses can realize that blade type spring holder material band plate's high accuracy processing such as punching a hole in succession, bulb stretch forming, blade stretch forming, flange face shaping and finished product blanking can improve machining precision and machining efficiency by a wide margin.

Description

Continuous stamping die of vane type spring holder

Technical Field

The utility model relates to a stamping die technical field, concretely relates to continuous stamping die of vane type spring holder.

Background

The blade type spring seat hardware is arranged inside the electromagnetic valve and mainly plays a role in fixing and supporting the spring, so that the expansion of the spring and the stability of the spring are controlled. The structure of the blade type spring seat is shown in fig. 1, and mainly comprises a ball head 100, wherein a stretched central through hole 200 is arranged in the center of the ball head 100, and three blades 300 bent upwards are arranged on the periphery of the ball head 100. The existing blade type spring seat is generally formed by adopting discontinuous die punch forming, namely, a material belt plate needs to be manually and continuously transferred among independent cutting, bending and stretching dies, and a single-process engineering die is difficult to position due to too small product and manual taking and placing; therefore, the requirements of appearance, shape, size and the like of products can be realized only by machining, and high-precision product machining cannot be realized, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a continuous stamping die of vane type spring holder can realize high accuracy processing such as the continuous punching a hole, bulb stretch forming, blade stretch forming, flange face shaping and the finished product blanking of vane type spring holder material belted sheet, has not only improved the machining precision of vane type spring holder, has improved the efficiency of vane type spring holder processing moreover by a wide margin.

In order to realize the technical scheme, the utility model provides a continuous stamping die of vane type spring holder, include: the lower die assembly comprises a lower die base, a lower base plate is arranged above the lower die base, and a lower die plate is arranged above the lower base plate; the upper die assembly comprises an upper die base, an upper base plate is installed below the upper die base, an upper die plate is installed below the upper base plate, a back stripping plate is installed below the upper die plate, a stripping plate is installed below the back stripping plate and located right above a lower die plate, and a punching module, a ball head downward stretching module, a ball head upward reverse stretching module, a ball head stretching in-place forming module, a ball head contour shaping module, a positioning punching module, a blade first forward stretching module, a blade second forward stretching module, a blade third forward stretching forming module, a blade contour shaping module, a flange face forming module, a ball head convex hull hole blanking module, a convex hull hole stretching hole flanging module, a semi-finished product upward blanking module and a finished product blanking module are sequentially installed between the upper die assembly and the lower die assembly from left to right according to the advancing direction of a material belt plate.

In the technical scheme, during actual processing, only the blade type spring seat material belt plate needs to be placed between the upper die assembly and the lower die assembly, then the stamping die is started, the blade type spring seat material belt plate moves from left to right, firstly, the central through hole of the ball head part is stamped out through the punching module, then, the ball head part is firstly stretched downwards through the ball head downward stretching module, then, the ball head upwards reversely primary stretching module is used for upwards reversely stretching, then, the ball head stretching in-place forming module is used for stretching forming of the ball head part, then, the ball head stretching in-place forming module is used for stretching forming the ball head part in place, then, the R angle and the shape outline of the ball head part are shaped through the ball head outline shaping module, and the size and the shape of the ball head part of the product are ensured to meet the size requirement of a product drawing through shaping. The method comprises the following steps of firstly, forming a strip plate, then, carrying out positioning and deviation rectification on the strip plate through a positioning stamping module, preventing the strip plate from deviating in the moving process, then, carrying out upward first forward extension stretching on three blades through a first forward extension stretching module of the blades, enabling the blades to be formed along demolding inserts of the blades, then, carrying out second forward extension stretching forming and third forward extension stretching forming on the three blades through a second forward extension stretching module of the blades and a third forward extension stretching forming module of the blades in place, finally, reshaping root R angles and integral contours of the connecting strip parts of the three blades through a blade contour reshaping module, then, carrying out flange face forming and semi-finished product reshaping after the previous forward extension forming through a flange face forming module, and ensuring the size and the integral structure size of a product. Then the protruding closure hole blanking of bulb is carried out to rethread bulb protruding closure hole blanking module, then carry out the shaping mode of half-stretch half-flanging hole downwards through the tensile hole flanging module in protruding closure hole to the hole after the blanking, guarantee the angle and the aperture size of protruding closure, later make progress the blanking module through the semi-manufactured goods and carry out half-cut blanking upwards to the semi-manufactured goods on the material strap board, get rid of the punching press burr of flange face a week, carry out product and material area separation from last to down through finished product blanking module at last, this structural design can eliminate the punching press burr of product flange face another side. Through the cooperation between the upward blanking module of the semi-finished product and the finished product blanking module, the product is firstly in a semi-connection state with the material belt plate in a semi-shearing mode from bottom to top, so that no burr is generated on the upper end of the flange surface of the product through a punch and a knife edge, the product is continuously conveyed to the next procedure in the forward direction, the product is blanked from top to bottom, the other side of the flange of the product is blanked without burr through the punch and the knife edge, and the problem of the generation of burrs on a broken product belt is solved. The continuous stamping die can realize high-precision processing of continuous punching, ball head stretching forming, blade stretching forming, flange face forming, finished product blanking and the like of the blade type spring seat material belt plate, not only improves the processing precision of the blade type spring seat, but also greatly improves the processing efficiency of the blade type spring seat.

Preferably, the ball head downward stretching module comprises an upper template insert, a stretching punch, a lower template insert, a first lower mold stripping block and a first lower mold thimble, wherein the stretching punch is assembled and fixed on the upper template through the upper template insert, the bottom of the stretching punch penetrates through the stripping plate to perform downward pre-stretching on the ball head part on the material strip plate, the first lower mold stripping block is assembled and fixed on the lower template through the lower template insert, and the first lower mold thimble is installed in the first lower mold stripping block and vertically and upwardly faces the stretching punch. When the material pulling device works actually, the stretching punch penetrates through the stripping plate to pre-stretch the ball head part of a product on the material belt plate downwards, the acting force of the first lower die ejector pin is exerted on the first lower die stripping block, so that the stretched material belt plate is separated from the lower die plate, and the situation that the material belt plate is not separated in the forward conveying process to generate material pulling product deformation is avoided.

Preferably, the ball head upward reverse stretching module comprises a first spring compression upper die thimble, a first demolding insert, a reverse stretching punch needle, a first punch needle protecting sleeve, a first lower die stripping block and a first spring compression lower die thimble, wherein the first spring compression upper die thimble is vertically and downwardly mounted on the upper die plate, the first demolding insert is mounted on the stripping plate, the first spring compression upper die thimble vertically and downwardly penetrates through the first demolding insert, the first spring compression lower die thimble is vertically and upwardly fixed on the lower die plate, the first lower die stripping block is mounted on the lower die plate, the reverse stretching punch needle is mounted in the first lower die stripping block, the bottom of the reverse stretching punch needle is in butt joint with the top of the first spring compression lower die thimble, the reverse stretching punch needle is arranged opposite to the first spring compression upper die thimble, and the first punch needle protecting sleeve is mounted at the top of the reverse stretching punch needle. The working principle of the upward reverse stretching module of the ball head is as follows: an upper die part: after the semi-finished product on the material belt plate is molded by the first spring compression upper mold thimble, the product is ejected out of the first demolding insert, so that the semi-finished product is prevented from being clamped in the first demolding insert, and the whole material belt cannot be continuously and smoothly conveyed for production due to the fact that the whole material belt is pulled; the lower die part: the first spring compresses the acting force of the lower die thimble to be arranged on the first lower die stripping block and the first punching needle protective sleeve, so that the floating height of the first lower die stripping block and the first punching needle protective sleeve must exceed the reverse stretching punching needle, and a product is completely separated from the reverse stretching punching needle, so that the phenomenon that the material belt plate is not separated from the reverse stretching punching needle in the forward conveying process to cause the dead jamming of the material belt plate and the deformation of the product is avoided.

Preferably, the first-time blade sequential stretching module comprises a second spring compression upper die thimble, a second demolding insert, a sequential stretching punch needle, a second punch needle protecting sleeve, a second lower die stripping block and a second spring compression lower die thimble, wherein the second spring compression upper die thimble is vertically and downwardly mounted on the upper die plate, the second demolding insert is mounted on the stripping plate, the second spring compression upper die thimble vertically and downwardly penetrates through the second demolding insert, the second spring compression lower die thimble is vertically and upwardly fixed on the lower backing plate, the second lower die stripping block is mounted on the lower die plate, the sequential stretching punch needle is mounted in the second lower die stripping block, the bottom of the sequential stretching punch needle is in butt joint with the top of the second spring compression lower die thimble, the sequential stretching punch needle is arranged opposite to the second spring compression upper die thimble, and the second punch needle protecting sleeve is mounted on the top of the sequential stretching punch needle. The working principle of the first-time blade forward-extending stretching module is as follows: an upper die part: the second spring compresses the upper die ejector pin to form the semi-finished product on the material strip plate and then ejects the product from the second demolding insert, so that the semi-finished product is prevented from being clamped in the second demolding insert, and the whole material strip cannot be continuously conveyed for production due to pulling; the lower die part: the second spring compresses the ejector pin of the lower die to exert force on the second lower die stripping block and the second punching pin protective sleeve, so that the floating height of the second lower die stripping block and the second punching pin protective sleeve must exceed the forward extension drawing punching pin, and a product is completely separated from the forward extension drawing punching pin, so that the forward material is prevented from being blocked and the product is prevented from being deformed because the forward extension drawing punching pin is not separated in the forward conveying process of the material strip plate.

Preferably, the convex hull hole stretching and flanging module comprises an upper die punching needle, a flanging punch, a demolding insert, a second lower die thimble and a second lower die stripping block, wherein the upper die punching needle is vertically downwards fixed on the upper die plate, the flanging punch is fixed at the bottom of the upper die punching needle, the demolding insert is fixed on the stripping plate, the upper die punching needle vertically downwards penetrates through the demolding insert, the second lower die stripping block is fixed on the lower die plate, the second lower die thimble is vertically upwards installed on the lower die plate and penetrates through the second lower die stripping block, and the upper die punching needle and the second lower die thimble are vertically arranged side by side and oppositely. During actual work, the upper die punching needle drives the hole flanging punch to be inserted into the central through hole of the material strip plate sphere, and then when the hole flanging punch is separated from the central through hole, the hole flanging punch is used for flanging the central through hole.

The utility model provides a pair of continuous stamping die of vane type spring holder's beneficial effect lies in: the continuous stamping die for the blade type spring seat is compact in layout and high in production continuity, and can realize high-precision machining of continuous punching, ball head stretching forming, blade stretching forming, flange face forming, finished product blanking and the like of a blade type spring seat material belt plate, so that the machining precision of the blade type spring seat is improved, and the machining efficiency of the blade type spring seat is greatly improved.

Drawings

Fig. 1 is a schematic structural view of a blade-type spring seat material band plate and a blade-type spring seat.

Fig. 2 is an assembly diagram of the internal structure of the present invention.

Fig. 3 is the utility model discloses in the structural schematic diagram of punching a hole module, bulb downward stretching module, the upwards reverse stretching module of bulb, the tensile shaping module that targets in place of bulb and bulb profile plastic module.

Fig. 4 is the utility model discloses well blade is for the first time in the same direction as the tensile module of extending, the tensile module of blade second time in the same direction as extending, the blade is for the third time in the same direction as the tensile forming module of extending, blade profile shaping module and flange face forming module's structural schematic.

Fig. 5 is the utility model discloses well bulb convex closure hole blanking module, the tensile hole flanging module in convex closure hole, the semi-manufactured goods make progress the structural sketch map of blanking module and finished product blanking module.

Fig. 6 is a schematic structural view of the middle ball head downward stretching module of the present invention.

Fig. 7 is a schematic structural view of the upward reverse stretching module of the middle ball head of the present invention.

Fig. 8 is a schematic structural view of the first forward-extending stretching module of the middle blade of the present invention.

Fig. 9 is a schematic structural view of the convex hull hole stretching flanging module of the present invention.

In the figure: 1. an upper die holder; 2. a base plate is arranged; 3. mounting a template; 4. a back stripping plate; 5. a material removing plate; 6. a lower template; 7. a lower base plate; 8. a lower die holder; 9. a lower foot pad; 10. a strip plate; 11. a punching module; 12. a ball head downward stretching module; 13. the ball head upwards and reversely stretches the module; 14. a ball head stretching and forming module; 15. the ball head is stretched to a forming module; 16. a ball head contour shaping module; 17. positioning the stamping module; 18. the first-time blade forward-extending and stretching module; 19. the second-time blade stretching module; 20. third-time stretching and forming module of the blade; 21. a blade profile shaping module; 22. forming a flange surface module; 23. a bulb convex hull hole blanking module; 24. stretching and flanging the hole module by the convex hull hole; 25. the semi-finished product is punched upwards to form a module; 26. a finished product blanking module; 100. a ball head; 200. a central through hole; 300. a blade.

121. An upper template insert; 122. stretching the punch; 123. a lower template insert; 124. a first lower die stripping block; 125. the first lower die thimble.

131. The first spring compresses the upper die thimble; 132. a first demold insert; 133. reversely stretching the punching needle; 134. a first punch needle protective sleeve; 135. a first lower die stripping block; 136. the first spring compresses the lower die thimble.

181. The second spring compresses the upper die thimble; 182. a second demolding insert; 183. stretching and punching the needle; 184. a second punch needle protective sleeve; 185. a second lower die stripping block; 186. the second spring compresses the lower die thimble.

241. Punching a needle on an upper die; 242. a hole flanging punch; 243. demolding the insert; 244. a second lower die thimble; 245. and a second lower die stripping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

The embodiment is as follows: a blade type spring seat continuous stamping die.

Referring to fig. 1 to 9, a blade-type spring seat continuous press mold includes: the lower die assembly comprises a lower die base 8, a lower pad 9 is arranged below the lower die base 8, a lower padding plate 7 is arranged above the lower die base 8, and a lower template 3 is arranged above the lower padding plate 7; the upper die assembly comprises an upper die base 1, an upper base plate 2 is arranged below the upper die base 1, an upper die plate 3 is arranged below the upper base plate 2, a back stripping plate 4 is arranged below the upper die plate 3, a stripping plate 5 is arranged below the back stripping plate 4, the stripping plate 5 is positioned right above a lower die plate 6, a punch can be fixed on the upper die assembly, a through hole of the stripping part can guide the punch, a guide needle can accurately guide and position the material belt, and the material belt of a product is prevented from being pulled by the punch in the punching process; the lower die component part is provided with a fixed knife edge and two parallel dual-purpose floating pins at two sides of the material belt, so that the material belt can be guided on the same horizontal line, and semi-finished products on the material belt can float at a height which is not interfered with the lower die parts, so that a feeder can smoothly convey the material belt to produce without blockage.

Referring to fig. 2 to 5, a punching module 11, a ball head downward stretching module 12, a ball head upward reverse stretching module 13, a ball head stretching forming module 14, a ball head stretching in-place forming module 15, a ball head contour shaping module 16, a positioning punching module 17, a blade first forward stretching module 18, a blade second forward stretching module 19, a blade third forward stretching forming module 20, a blade contour shaping module 21, a flange face forming module 22, a ball head convex hull hole blanking module 23, a convex hull hole stretching hole flanging module 24, a semi-finished product upward blanking module 25 and a finished product blanking module 26 are sequentially installed between the upper die assembly and the lower die assembly from left to right according to the advancing direction of the caring strip 10. During actual processing, only blade type spring seat material band plate 10 needs to be placed between an upper die assembly and a lower die assembly, then a stamping die is started, blade type spring seat material band plate 10 moves from left to right, a central through hole 200 of a ball head 100 part is stamped out through a punching module 11, then a ball head part of a product is firstly stretched downwards through a ball head downward stretching module 12, then upward reverse primary stretching is carried out through a ball head upward reverse stretching module 13, then stretching forming of the ball head part is carried out through a ball head stretching in-place forming module 14, stretching forming of the ball head part is carried out through a ball head stretching in-place forming module 15, then the R angle and the shape outline of the ball head part of the product are shaped through a ball head outline shaping module 16, and the size and the shape of the ball head part of the product are ensured to meet the size requirement of a product drawing through shaping. Then, the material belt plate 10 is positioned and corrected through a positioning and stamping module 17, the deviation of the material belt plate 10 in the moving process is prevented, then, the first upward forward extension of the three blades is carried out through a first blade forward extension module 18, the blades are formed along demolding inserts of the blades, then, the second forward extension forming and the third forward extension forming of the three blades are carried out in place through a second blade forward extension module 19 and a third blade forward extension forming module 20 in sequence, finally, the root R angle and the whole contour of the connecting belt of the three blades are shaped through a blade contour shaping module 21, then, the flange face forming and the semi-finished product reshaping are carried out after the forward extension forming is carried out through a flange face forming module 22, and the size and the whole structure size of the product are ensured. Then carry out the convex closure hole blanking of bulb through bulb convex closure hole blanking module 23, then carry out the shaping mode of half the tensile half hole flanging downwards through the tensile hole flanging module 24 of convex closure hole to the hole after the blanking, guarantee the angle and the aperture size of convex closure, later go up through half-finished product blanking module 25 and carry out the half-cut blanking upwards to the semi-finished product on the material strap board 10, get rid of the punching press burr of flange face a week, carry out product and material strap board 10 separation from top to bottom through finished product blanking module 26 at last, this structural design can eliminate the punching press burr of product flange face another side. Through the cooperation between the upward blanking module 25 and the finished product blanking module 26 of the semi-finished product, the product is firstly in a semi-connection state with the material belt plate in a semi-shearing mode from bottom to top, so that no burr is generated on the upper end of the flange surface of the product through a punch and a knife edge, the product is continuously conveyed to the next procedure in the forward direction, the product is blanked from top to bottom, the other side of the flange of the product is blanked without burr through the punch and the knife edge, and the problem of the generation of burrs on a broken product belt is solved. The continuous stamping die can realize high-precision processing such as continuous punching, ball head stretching forming, blade stretching forming, flange face forming and finished product blanking of the blade type spring seat material strip plate 10, not only improves the processing precision of the blade type spring seat, but also greatly improves the processing efficiency of the blade type spring seat.

Referring to fig. 6, the bulb downward drawing module 12 includes an upper template insert 121, a drawing punch 122, a lower template insert 123, a first lower die stripper block 124, and a first lower die thimble 125, wherein the drawing punch 122 is assembled and fixed on the upper template 3 through the upper template insert 121, the bottom of the drawing punch 122 passes through the stripper plate 5 to pre-draw the bulb portion of the strip plate 10 downward, the first lower die stripper block 124 is assembled and fixed on the lower template 6 through the lower template insert 123, and the first lower die thimble 125 is installed in the first lower die stripper block 124 and is vertically and upwardly opposite to the drawing punch 122. In actual operation, the stretching punch 122 passes through the stripper plate 5 to pre-stretch the ball head portion of the product on the material strap 10, and the first lower die ejector pin 125 acts on the first lower die stripper block 124 to separate the stretched material strap 10 from the lower die plate 6, so as to prevent the stretched product from deforming without being separated during the forward feeding of the material strap 10.

Referring to fig. 7, the ball upward reverse stretching module 13 includes a first spring compression upper die thimble 131, a first demolding insert 132, a reverse stretching punch needle 133, a first punch needle protecting sleeve 134, a first lower die stripper block 135 and a first spring compression lower die thimble 136, where the first spring compression upper die thimble 131 is vertically installed downward on the upper die plate 3, the first demolding insert 132 is installed on the stripper plate 5, the first spring compression upper die thimble 131 vertically penetrates through the first demolding insert 132 downward, the first spring compression lower die thimble 136 is vertically fixed upward on the lower die plate 7, the first lower die stripper block 135 is installed on the lower die plate 6, the reverse stretching punch needle 133 is installed in the first lower die stripper block 135, the bottom of the reverse stretching punch needle 133 is abutted against the top of the first spring compression lower die thimble 136, the reverse stretching punch needle 133 is disposed opposite to the first spring compression upper die thimble 131, and the first punch needle protecting sleeve 134 is installed on the top of the reverse stretching punch needle 133. The working principle of the ball head upward reverse stretching module 13 is as follows: an upper die part: after the first spring compression upper die ejector pin 131 is used for molding the semi-finished product on the material strip plate 10, the product is ejected out of the first demolding insert 132, so that the semi-finished product is prevented from being clamped in the first demolding insert 132, and the whole material strip cannot be continuously conveyed for production due to pulling; the lower die part: the first spring compresses the lower die thimble 136 to act on the first lower die stripper 135 and the first punch needle protection sleeve 134, so that the floating height of the first lower die stripper 135 and the first punch needle protection sleeve 134 must exceed the reverse stretching punch needle 133, and the product is completely separated from the reverse stretching punch needle 133, thereby preventing the forward material from being stuck and the product from being deformed because the reverse stretching punch needle 133 is not separated during the forward conveying of the strip plate 10.

Referring to fig. 8, the blade first sequential stretching module 18 includes a second spring compression upper die thimble 181, a second demolding insert 182, a sequential stretching punch pin 183, a second punch pin protecting sleeve 184, a second lower die stripper block 185 and a second spring compression lower die thimble 186, wherein the second spring compression upper die thimble 181 is vertically installed on the upper die plate 3 downward, the second demolding insert 182 is installed on the stripper plate 5, the second spring compression upper die thimble 181 vertically penetrates through the second demolding insert 182 downward, the second spring compression lower die thimble 186 is vertically fixed on the lower pad 7 upward, the second lower die stripper block 185 is installed on the lower die plate 6, the sequential stretching punch pin 183 is installed in the second lower die stripper block 185, the bottom of the sequential stretching punch pin 183 is butted with the top of the second spring compression lower die thimble 186, the sequential stretching punch pin 183 is opposite to the second spring compression upper die thimble 181, and the second punch pin protecting sleeve 184 is installed on the top of the sequential stretching punch pin 183. The working principle of the first-time blade stretching module 18 is as follows: an upper die part: after the semi-finished product on the material strip plate 10 is molded by the second spring compression upper mold ejector pin 181, the product is ejected out of the second demolding insert 182, so that the semi-finished product is prevented from being clamped in the second demolding insert 182, and the whole material strip cannot be continuously and smoothly sent to production due to pulling; the lower die part: the second spring compresses the lower die thimble 186 to act on the second lower die stripping block 185 and the second punch needle protecting sleeve 184, so that the floating height of the second lower die stripping block 185 and the second punch needle protecting sleeve 184 must exceed the forward extension punch needle 183, and the product is completely separated from the forward extension punch needle 183, thereby preventing the forward material from being stuck and the product from being deformed because the forward extension punch needle 183 is not separated during the forward feeding of the strip plate 10. In this embodiment, the first vane stretching module 18, the second vane stretching module 19 and the third vane stretching module 20 have substantially the same structure, and the difference is only the depth of the stretching punch 183;

referring to fig. 9, the convex hull hole stretching and flanging module 24 includes an upper die punch needle 241, a flanging punch 242, a demolding insert 243, a second lower die ejector pin 244 and a second lower die stripper block 245, wherein the upper die punch needle 241 is vertically fixed to the upper die plate 3 downward, the flanging punch 242 is fixed to the bottom of the upper die punch needle 241, the demolding insert 243 is fixed to the stripper plate 5, the upper die punch needle 241 vertically penetrates through the demolding insert 243 downward, the second lower die stripper block 245 is fixed to the lower die plate 6, the second lower die ejector pin 244 is vertically installed on the lower die plate 6 upward and penetrates through the second lower die stripper block 245, and the upper die punch needle 241 and the second lower die ejector pin 244 are arranged side by side up and down. In actual operation, the upper die punch needle 241 drives the hole flanging punch 242 to be inserted into the central through hole 200 of the ball portion of the material strap 10, and then when the hole flanging punch 242 is separated from the central through hole 200, the hole flanging punch 242 performs hole flanging on the central through hole 200.

The continuous stamping die for the blade type spring seat is compact in layout and high in production continuity, and can realize high-precision machining of continuous punching, ball head stretching forming, blade stretching forming, flange face forming, finished product blanking and the like of a blade type spring seat material belt plate, so that the machining precision of the blade type spring seat is improved, and the machining efficiency of the blade type spring seat is greatly improved.

The material belt plates are evenly connected, so that the stability of continuous and smooth feeding of the material belt is ensured, the molecular structure of the material is not changed when the blades of a product are stretched in a smooth mode, and the original thickness and performance of the material are kept; the die is designed into a downward stretching type structure at the ball head part, and then is designed into an upward reverse stretching and shaping mode, so that the structure of the ball head part at the bottom of a product is formed in place; after the ball head process is finished, the blade is subjected to forward-extending punching and drawing, shaping, flange bending and shaping bidirectional stripping structure design, so that a semi-finished product is subjected to plastic deformation under the condition that the material does not flow to obtain the appearance shape of the product and meet the size requirement of the product; after the product appearance and contour forming is finished, punching small holes, performing downward reverse drawing and hole flanging forming, and performing repeated reverse drawing, forward drawing and half-flanging to obtain smooth continuous punch forming of the product; the material belt and product separation structure is designed into a product which falls downwards after being half sheared upwards, so that the product is produced without punching burrs, and the problem that the assembly is poor due to the burrs of a punching part is reduced.

The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims (5)

1. A continuous stamping die for blade-type spring seats, comprising: the lower die assembly comprises a lower die base, a lower base plate is arranged above the lower die base, and a lower die plate is arranged above the lower base plate; the mould assembly comprises an upper mould base, an upper padding plate is installed below the upper mould base, an upper mould plate is installed below the upper padding plate, a back stripping plate is installed below the upper mould plate, a stripping plate is installed below the back stripping plate, and the stripping plate is located over a lower mould plate and is characterized in that: a punching module, a ball head downward stretching module, a ball head upward reverse stretching module, a ball head stretching forming module, a ball head stretching in-place forming module, a ball head contour shaping module, a positioning punching module, a blade first forward extending stretching module, a blade second forward extending stretching module, a blade third forward extending stretching forming module, a blade contour shaping module, a flange face forming module, a ball head convex hull hole punching module, a convex hull hole stretching hole flanging module, a semi-finished product upward punching module and a finished product punching module are sequentially arranged between the upper die assembly and the lower die assembly from left to right according to the advancing direction of the caring belt plate.

2. The continuous leaf spring seat stamping die of claim 1, wherein: the ball head downward stretching module comprises an upper template insert, a stretching punch, a lower template insert, a first lower die stripping block and a first lower die thimble, wherein the stretching punch is assembled and fixed on the upper template through the upper template insert, the bottom of the stretching punch penetrates through the stripping plate to perform downward pre-stretching on a ball head part on the material belt plate, the first lower die stripping block is assembled and fixed on the lower template through the lower template insert, and the first lower die thimble is installed in the first lower die stripping block and vertically and upwards arranged over against the stretching punch.

3. The blade spring seat continuous stamping die as claimed in claim 1, wherein: the ball head upward reverse stretching module comprises a first spring compression upper die ejector pin, a first demolding insert, a reverse stretching punch pin, a first punch pin protective sleeve, a first lower die stripping block and a first spring compression lower die ejector pin, wherein the first spring compression upper die ejector pin is vertically and downwardly installed on the upper die plate, the first demolding insert is installed on the stripping plate, the first spring compression upper die ejector pin vertically and downwardly penetrates through the first demolding insert, the first spring compression lower die ejector pin is vertically and upwardly fixed on the lower die base plate, the first lower die stripping block is installed on the lower die plate, the reverse stretching punch pin is installed in the first lower die stripping block, the bottom of the reverse stretching punch pin is in butt joint with the top of the first spring compression lower die ejector pin, the reverse stretching punch pin is arranged opposite to the first spring compression upper die ejector pin, and the first punch pin protective sleeve is installed at the top of the reverse stretching punch pin.

4. The blade spring seat continuous stamping die as claimed in claim 1, wherein: the first-time blade sequential-extension stretching module comprises a second spring compression upper die thimble, a second demolding insert, a sequential-extension stretching punch needle, a second punch needle protective sleeve, a second lower die stripping block and a second spring compression lower die thimble, wherein the second spring compression upper die thimble is vertically and downwardly mounted on the upper die plate, the second demolding insert is mounted on the stripping plate, the second spring compression upper die thimble vertically and downwardly penetrates through the second demolding insert, the second spring compression lower die thimble is vertically and upwardly fixed on the lower die plate, the second lower die stripping block is mounted on the lower die plate, the sequential-extension stretching punch needle is mounted in the second lower die stripping block, the bottom of the sequential-extension stretching punch needle is in butt joint with the top of the second spring compression lower die thimble, the sequential-extension stretching punch needle is opposite to the second spring compression upper die thimble, and the second punch needle protective sleeve is mounted at the top of the sequential-extension stretching punch needle.

5. The blade spring seat continuous stamping die as claimed in claim 1, wherein: the convex hull hole stretching and hole flanging module comprises an upper die punching needle, a hole flanging punch, a demolding insert, a second lower die thimble and a second lower die stripping block, wherein the upper die punching needle is vertically downwards fixed on an upper template, the hole flanging punch is fixed at the bottom of the upper die punching needle, the demolding insert is fixed on the stripping plate, the upper die punching needle vertically downwards penetrates through the demolding insert, the second lower die stripping block is fixed on a lower template, the second lower die thimble is vertically upwards installed on the lower template and penetrates through the second lower die stripping block, and the upper die punching needle and the second lower die thimble are vertically and oppositely arranged side by side.

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