CN214290376U - Stamping die - Google Patents

Abstract

The utility model relates to the technical field of mold, specifically a stamping die. The device comprises an upper die and a lower die, wherein the lower die is positioned below the upper die and movably connected with the upper die; wherein, slide wedge punching press mechanism is including fixing the slide wedge punching press base member in upper die base bottom, installing at the punching needle subassembly of slide wedge punching press base member bottom and installing the slide wedge subassembly in the pressure material core upper end, and the punching needle subassembly slope is inserted to the slide wedge subassembly in to with slide wedge subassembly sliding fit. The utility model provides a stamping die, simple structure, cost of manufacture are low, and the cooperation precision is high, have improved the punching press quality, reduce punching press product error.

Description

Stamping die

Technical Field

The utility model relates to the technical field of mold, specifically a stamping die.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

Most of stamping surfaces of the existing stamping die are of a plane structure, so that side stamping at a certain angle cannot be realized, stamping operation cannot be performed in a direction completely perpendicular to a product, and a stamping error is large; and the existing stamping die has a complex structure and is inconvenient to maintain and replace.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the above-mentioned background art, the utility model provides a stamping die, simple structure, cost of manufacture are low, and the cooperation precision is high, have improved the punching press quality, reduce punching press product error.

The utility model adopts the following technical scheme: a stamping die comprises an upper die and a lower die, wherein the lower die is positioned below the upper die and movably connected with the upper die; the inclined wedge stamping mechanism comprises an inclined wedge stamping base piece fixed at the bottom end of the upper die base, a stamping pin assembly installed at the bottom end of the inclined wedge stamping base piece, and an inclined wedge assembly installed at the upper end of the pressing core, wherein the stamping pin assembly is obliquely inserted into the inclined wedge assembly and is in sliding fit with the inclined wedge assembly.

Furthermore, the wedge stamping base part comprises a wedge stamping base fixed at the bottom end of the upper die base and a connecting clamping block fixed at the bottom end of the wedge stamping base, and the connecting clamping block is obliquely arranged.

Furthermore, the punching needle assembly comprises a movable rod arranged at the bottom end of the wedge punching base piece, and a punching needle connecting plate and a punching needle which are sequentially and fixedly arranged at the free end of the movable rod.

Furthermore, a limiting clamping groove is formed in the fixed end of the movable rod, a clamping hook is formed at the bottom end of the connecting clamping block, and the limiting clamping groove is matched with the clamping hook.

Furthermore, the wedge component comprises a fixed block and a wear-resistant sleeve, the fixed block is arranged at the upper end of the pressing core, a second through hole is formed in the fixed block, and the wear-resistant sleeve is fixedly sleeved in the second through hole of the fixed block.

Furthermore, the wear-resisting sleeve is in a hollow cylindrical shape, a limiting boss is formed on the outer wall surface of the top of the wear-resisting sleeve, and the bottom surface of the limiting boss is abutted to the fixing block.

Furthermore, the wedge component further comprises a pressing block arranged on one side of the top of the wear-resistant sleeve and an anti-rotation pressing block arranged on the other side of the top of the wear-resistant sleeve in a pressing fit mode, and the bottom surface of the pressing block is abutted to the top surface of the limiting boss.

Further, a long-strip-shaped groove is formed in the side wall surface of the movable rod, and the groove is arranged along the sliding direction of the movable rod; and a stroke limiting pin is arranged on the fixed block, and the tail end of the stroke limiting pin extends into the groove of the movable rod.

Further, the lower die comprises a lower die base, a guide rod which is arranged at the upper end of the lower die base and is vertical to the lower die base, and an elastic piece which is sleeved on the guide rod; the bottom end of the guide rod is fixedly connected with the lower die base, the top end of the guide rod penetrates through the upper die base, and the upper die base is arranged along the guide rod in a vertically moving mode.

Furthermore, a die handle is arranged at the top end of the upper die base.

Compared with the prior art, the utility model discloses following beneficial effect has:

the stamping die of the utility model has simple structure and low manufacturing cost; the stamping die adopts an assembled connection mode among the parts, is convenient to install, is convenient for replacement and maintenance of easily damaged parts, and is high in debugging speed. Meanwhile, when the stamping die is used, the pressing core is placed on a workpiece to be processed, so that the stability of stamping operation is enhanced; and through the cooperation of punching needle subassembly and slide wedge subassembly, realize treating the punching press of processing work piece, the cooperation precision is high, improves the punching press quality, reduces the punching press product error.

Drawings

For a clearer explanation of 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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall structure diagram of the stamping die of the present invention;

FIG. 2 is a schematic structural view of FIG. 1 with the upper block removed;

FIG. 3 is a schematic structural view of FIG. 1 with the upper die holder, the upper cushion block, the upper supporting plate, and other structures removed;

FIG. 4 is a schematic structural view of a wedge punching mechanism in FIG. 1;

FIG. 5 is a cross-sectional view of the cam press mechanism of FIG. 1;

FIG. 6 is a schematic view of the construction of the core press of FIG. 1;

wherein: an upper die holder 1; the material pressing core 2 and the first through hole 20; the wedge stamping mechanism 3, the wedge stamping base part 30, the wedge stamping base 301, the connecting fixture block 302, the hook 302-1, the punch pin assembly 31, the movable rod 311, the limiting fixture slot 311-1, the groove 311-2, the punch pin connecting plate 312, the punch pin 313, the wedge assembly 32, the fixing block 321, the second through hole 321-1, the wear-resistant sleeve 322, the limiting boss 322-1, the pressing block 323, the anti-rotation pressing block 324, the stroke limiting pin 325 and the pressing plate 326; a workpiece 4 to be machined; a lower die holder 5; a guide rod 6; a lower template 7; a stroke limit block 8; an upper cushion block 9; an upper pallet 10; a die shank 11; and a lower pad 12.

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 present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be discussed in detail below with reference to fig. 1 to 6 and specific embodiments:

as shown in fig. 1 to 6, the present embodiment provides a stamping die, which includes an upper die and a lower die located below the upper die and movably connected to the upper die. The upper die comprises an upper die base 1, a material pressing core 2 and a wedge stamping mechanism 3, wherein the material pressing core 2 is located below the upper die base 1 and is movably connected with the upper die base 1, and the wedge stamping mechanism is located between the upper die base 1 and the material pressing core 2. The material pressing core 2 is placed above the workpiece 4 to be processed and tightly presses the workpiece 4 to be processed; the wedge stamping mechanism 3 realizes the stamping operation of the workpiece 4 to be processed. The wedge stamping mechanism 3 comprises a wedge stamping base member 30 fixed at the bottom end of the upper die holder 1, a stamping pin assembly 31 installed at the bottom end of the wedge stamping base member 30, and a wedge assembly 32 installed at the upper end of the pressing core 2. As shown in fig. 6, a first through hole 20 is opened on the pressing core 2 to form a sliding channel for the punch pin assembly 31 to move downwards and upwards. And obliquely inserting the punching pin assembly 31 into the wedge assembly 32, and slidably matching with the wedge assembly 32 to realize the punching operation of the workpiece to be processed. It can be known that, before the punching operation, the workpiece 4 to be processed is placed between the material pressing core 2 and the lower die, during the punching, the upper die base 1 moves downwards to drive the punching needle assembly 31 to move downwards, slides downwards in the wedge assembly 32, and penetrates through the first through hole 20 formed in the material pressing core 2 until the punching needle in the punching needle assembly 31 extends into the workpiece 4 to be processed, and pierces the workpiece 4 to be processed, so that the effect of punching a cut hole is achieved, and the punching operation of the workpiece 4 to be processed is realized. Correspondingly, the cut waste material slides out of the lower die. It should be noted that the utility model discloses well to do not specifically prescribe a limit to the inclination of towards needle subassembly 31, the user can be according to actual punching press angle, the mould product that the design corresponds, and the accurate punching press of being convenient for improves the off-the-shelf quality of punching press.

Further, in some embodiments of the present invention, as shown in fig. 4 and 5, the wedge punching base member 30, the punching pin assembly 31, and the wedge assembly 32 in the wedge punching mechanism 3 are respectively optimally designed, such as: the wedge stamping base member 30 comprises a wedge stamping base 301 fixed at the bottom end of the upper die holder 1 and a connecting fixture block 302 fixed at the bottom end of the wedge stamping base 31, wherein the connecting fixture block 302 is obliquely arranged, so that the stamping pin assembly 31 arranged on the connecting fixture block 302 can be obliquely arranged at the bottom of the wedge stamping base member 30, side stamping at a certain angle is realized, and stamping errors are reduced. The utility model discloses in do not specifically prescribe a limit to the fixed connection mode between upper die base 1 and slide wedge punching press base 301 and slide wedge punching press base 31 and connection fixture block 302, can adopt screw, bolted connection, buckle connection, or card key connection etc. all can, but preferred, adopt detachable connection, the equipment and the maintenance etc. of the structure of being convenient for.

This towards needle subassembly 31 is including installing movable rod 311 in slide wedge punching press base member 30 bottom and in proper order fixed mounting towards needle connecting plate 312 and towards needle 313 at movable rod 311 free end, realize towards the fixed connection between needle 313 and movable rod 311 through towards needle connecting plate 312, the same reason, the utility model discloses well do not specifically limit to movable rod 311, towards needle connecting plate 312 and towards the fixed connection mode between needle 313 three, can be screw, bolted connection, buckle connection etc. all can, but preferred adopts detachable connection, the equipment and the maintenance etc. of the structure of being convenient for. For the fixed connection between the bottom end of the wedge pressing base piece 30 and the movable rod 311, the following structural design is adopted in the embodiment: a limit clamping groove 311-1 is formed at the fixed end of the movable rod 311, a clamping hook 302-1 is formed at the bottom end of the connecting clamping block 302, the limit clamping groove 311-1 is matched with the clamping hook 302-1, and the clamping hook 302-1 is clamped at the limit clamping groove 311-1 of the movable rod 311, so that the fixed connection between the movable rod 311 and the connecting clamping block 302 is realized, and further, the fixed connection between the punch pin assembly 31 and the wedge punch base member 30 is realized; the structural design of the clamping hook and the clamping groove is adopted, the connecting structure is simple, the assembly is convenient, the clamping hook is connected in a clamping mode, and the connection is reliable.

This slide wedge subassembly 32 includes fixed block 321 and wear-resisting cover 322, the fixed block 321 is installed the upper end of briquetting core 2, and set up second perforating hole 321-1 in the fixed block 321, the fixed cover of wear-resisting cover 322 is established in the second perforating hole 321-1 of fixed block 321 forms the track of sliding, will dash needle subassembly 31 slope insert to slide track department of slide wedge subassembly 32 to with the slide track sliding fit of slide wedge subassembly 32, realize the sliding of towards needle subassembly 31. Specifically, the wear-resistant sleeve 322 is in a hollow cylindrical shape, a limiting boss 322-1 is formed on the outer wall surface of the top of the wear-resistant sleeve 322, the bottom surface of the limiting boss 322-1 is abutted to the upper end surface of the fixing block 321, and the wear-resistant sleeve 322 is limited and mounted on the fixing block 321. The utility model discloses in do not do the restriction to the concrete connection mode between wear-resisting cover 322 and fixed block 321, as long as realize the fixed connection between the two can. However, in some more specific embodiments, the connection form between the wear-resistant sleeve 322 and the fixing block 321 is defined, as in this embodiment: the wedge component 32 further comprises a pressing block 323 arranged on one side of the top of the wear-resistant sleeve 322 and an anti-rotation pressing block 324 arranged on the other side of the top of the wear-resistant sleeve 322 in a pressing fit mode, the bottom surface of the pressing block 323 is abutted to the top surface of the limiting boss 322-1, the pressing block 323 is pressed on the top surface of the limiting boss 322-1, the pressing block 323 is fixed on the fixing block 321 through screws, bolts and the like, and movement of the wear-resistant sleeve 322 is limited; the anti-rotation pressing block 324 is mounted on the side wall surface at the top of the wear-resistant sleeve 322 in a press fit mode, so that the wear-resistant sleeve 322 is prevented from rotating, the anti-rotation pressing block 324 can be fixed on the fixing block 321 through screws, bolts and the like, and the fixed connection between the wear-resistant sleeve 322 and the fixing block 321 is achieved. Preferably, the wear-resistant sleeve 322 is made of wear-resistant copper materials, the wear-resistant sleeve 322 is high in precision and can be used for a long time, and the service life of the whole equipment is prolonged.

Further, in some embodiments, as shown in fig. 4, a long-strip-shaped groove 311-2 is formed in a side wall surface of the movable rod 311, and the groove 311-2 is formed along the sliding direction of the movable rod 311; meanwhile, a stroke limit pin 325 is installed on the fixed block 321, the installation direction of the stroke limit pin 325 is perpendicular to the length direction of the groove 311-2, and the tail end of the stroke limit pin 325 is inserted into the groove 311-2 of the movable rod 311 to sense the sliding distance of the movable rod 311. Specifically, a corresponding pressing plate 326 may be further installed on the fixed block 321, and the pressing plate 326 is used to limit and press the stroke limiting pin 325, so as to prevent the stroke limiting pin 325 from running out of the groove 311-2 of the movable rod 311.

Further, in some embodiments, as shown in fig. 1 and 2, the lower mold includes a lower mold base 5, a guide rod 6 installed at the upper end of the lower mold base 5 and perpendicular to the lower mold base 5, and an elastic member (not shown) sleeved on the guide rod 6. The bottom end of the guide rod 6 is fixedly connected with the lower die holder 5, the top end of the guide rod penetrates through the upper die holder 1, and the upper die holder 1 is arranged along the guide rod 6 in a vertically moving mode, so that the upper die is movably connected with the lower die. In the die closing process, the upper die base 1 is continuously pressed down, the upper die base 1 drives the punch pin assembly 31 to move downwards together, at the moment, the upper die base 1 penetrates through the guide rod 6 and compresses the elastic piece to move downwards, the distance between the upper die and the lower die is gradually reduced, meanwhile, the spatial distance between the upper die base 1 and the material pressing core 2 is compressed, and finally die closing is completed. The elastic piece in this embodiment is a buffer spring, which plays a role in buffering and resetting. Preferably, two guide rods 6 are arranged in the embodiment and are respectively arranged at two ends of the lower die holder 5; set up two guide bars 6 and make stamping process steady, help improving the punching press precision. Specifically, the lower die further comprises a lower die plate 7 and a lower cushion block 12; the lower template 7 is arranged at the center of the lower die holder 5 and is matched with the upper die to realize the stamping operation. The lower cushion block 12 is fixedly arranged at the bottom of the lower die holder 5 to support the lower die holder 5. It should be noted that, the movable connection mode between the upper die holder 1 and the material pressing core 2 can be designed by those skilled in the art with reference to the movable connection mode between the upper die and the lower die.

Further, as shown in fig. 1 and 2, a plurality of extension rods are vertically installed at the bottom end of the upper die holder 1, the tail ends of the extension rods are suspended above the lower die holder 5, and stroke limit blocks 8 are arranged at the tail ends of the extension rods; the distance that upper die base 1 pushed down is controlled to cooperate stroke stopper 8, guarantees the safety of complete machine.

Furthermore, an upper cushion block 9 and an upper supporting plate 10 are sequentially and fixedly installed at the top end of the upper die holder 1, and a die shank 11 is arranged at the center of the top of the upper supporting plate 10, so that the assembly of the stamping die is facilitated.

The utility model discloses an equipment mode does: firstly, fixing a die shank 11 on an upper supporting plate 10, sequentially connecting an upper cushion block 9 and an upper die base 1, overturning the assembled upper die base 1 to the reverse side, installing an upper wedge stamping base 301 and a connecting fixture block 302 at the bottom end of the upper die base 1, and taking the assembled part as a first part. Next, the movable rod 311, the punch pin connecting plate 312, and the punch pin 313 are fixedly connected to each other, and the assembled component is defined as a second part. Next, the wear-resistant sleeve 322 is placed into the fixing block 321, the pressing block 323 and the anti-rotation pressing block 324 are sequentially placed into the fixing block 321, so that the wear-resistant sleeve 322 is fixedly mounted in the fixing block 321, then the fixing block 321 is fixed to the material pressing core 2, and the assembled part is used as a third part. Then, the second part is placed into the third part, a gap is configured, so that the second part and the third part achieve the effect of sliding fit, then the stroke limiting pin 325 is installed, the tail end of the stroke limiting pin 325 extends into the groove 311-2 of the movable rod 311, the sliding distance of the movable rod 311 is sensed, and the stroke limiting pin 325 is pressed by the pressing plate 326. Meanwhile, the first part is covered on the second part, and the first part is connected with the second part in a clamping way through the clamping hook 302-1 connected with the bottom end of the clamping block 302.

The stamping die of the utility model has simple structure and low manufacturing cost; the stamping die adopts an assembled connection mode among the parts, is convenient to install, is convenient for replacement and maintenance of easily damaged parts, and is high in debugging speed. Meanwhile, when in use, the material pressing core 2 is placed on the workpiece 4 to be processed, so that the stability of the stamping operation is enhanced; and through the cooperation of punching needle subassembly 31 and slide wedge subassembly 32, realize treating the punching press of processing work piece 4, the cooperation precision is high, improves the punching press quality, reduces the punching press product error.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims (10)

1. The utility model provides a stamping die, includes the mould and is located go up the mould below and with go up mould swing joint's lower mould, its characterized in that: the upper die comprises an upper die base, a material pressing core and a wedge stamping mechanism, wherein the material pressing core is positioned below the upper die base and movably connected with the upper die base, and the wedge stamping mechanism is positioned between the upper die base and the material pressing core;

the inclined wedge stamping mechanism comprises an inclined wedge stamping base piece fixed at the bottom end of the upper die base, a stamping pin assembly installed at the bottom end of the inclined wedge stamping base piece, and an inclined wedge assembly installed at the upper end of the pressing core, wherein the stamping pin assembly is obliquely inserted into the inclined wedge assembly and is in sliding fit with the inclined wedge assembly.

2. The stamping die of claim 1, wherein: the wedge stamping base piece comprises a wedge stamping base fixed at the bottom end of the upper die base and a connecting clamping block fixed at the bottom end of the wedge stamping base, and the connecting clamping block is obliquely arranged.

3. The stamping die of claim 2, wherein: the punching needle assembly comprises a movable rod arranged at the bottom end of the wedge punching base piece, and a punching needle connecting plate and a punching needle which are sequentially and fixedly arranged at the free end of the movable rod.

4. The stamping die of claim 3, wherein: the fixed end of the movable rod is provided with a limiting clamping groove, the bottom end of the connecting clamping block is provided with a clamping hook, and the limiting clamping groove is matched with the clamping hook.

5. The stamping die of claim 3, wherein: the wedge subassembly includes fixed block and wear-resisting cover, the fixed block is installed the upper end of pressing the material core, just set up the second perforating hole in the fixed block, the fixed cover of wear-resisting cover is established in the second perforating hole of fixed block.

6. The stamping die of claim 5, wherein:

the wear-resisting cover is in a hollow cylindrical shape, a limiting boss is formed on the outer wall surface of the top of the wear-resisting cover, and the bottom surface of the limiting boss is abutted to the fixing block.

7. The stamping die of claim 6, wherein:

the wedge component further comprises a pressing block arranged on one side of the top of the wear-resistant sleeve and an anti-rotation pressing block arranged on the other side of the top of the wear-resistant sleeve in a pressing mode, and the bottom surface of the pressing block is abutted to the top surface of the limiting boss.

8. The stamping die of claim 7, wherein: a long-strip-shaped groove is formed in the side wall surface of the movable rod and is arranged along the sliding direction of the movable rod; and a stroke limiting pin is arranged on the fixed block, and the tail end of the stroke limiting pin extends into the groove of the movable rod.

9. The stamping die of claim 1, wherein: the lower die comprises a lower die base, a guide rod which is arranged at the upper end of the lower die base and is vertical to the lower die base, and an elastic piece which is sleeved on the guide rod; the bottom end of the guide rod is fixedly connected with the lower die base, the top end of the guide rod penetrates through the upper die base, and the upper die base is arranged along the guide rod in a vertically moving mode.

10. The stamping die of claim 1, wherein: and a die handle is arranged at the top end of the upper die base.

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