CN214683857U

CN214683857U - Stamping die

Info

Publication number: CN214683857U
Application number: CN202120918626.6U
Authority: CN
Inventors: 修德校; 郑际华; 魏荣斌; 储昭辉
Original assignee: Zhejiang Nuoge Automobile Mould Co ltd
Current assignee: Zhejiang Nuoge Automobile Mould Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-12
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a stamping die, it includes die board and convex die board, and die board and convex die board parallel arrangement are provided with the boss on the convex die board, and the boss includes waste material district and two finished product districts, and the both sides in waste material district are located respectively to two finished product districts, and the lateral wall in waste material district is provided with the shrink piece, sets up on the die board and supplies boss male recess. The application has the effect that the periphery of a processed product cannot be wrinkled.

Description

Stamping die

Technical Field

The application relates to the field of mold forming technology, in particular to a pressing mold.

Background

The stamping die is a special process equipment for processing materials into parts or semi-finished products in cold stamping processing, and is called as 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.

In the related art, a patent document with publication number CN208772262U discloses a stamping die, which includes a pressing mechanism and a female die mechanism located below the pressing mechanism, wherein the pressing mechanism includes a drill bit mechanism, a punch and an upper fixing seat, the female die mechanism includes a punching female die corresponding to the drill bit mechanism, a notching female die adapted to the punch, and a lower fixing seat; a first sliding rail is arranged between the notching female die and the lower fixing seat, and the notching female die can move up and down along the first sliding rail; the upper fixing seat and the lower fixing seat are connected through a piston; the lower surface and the middle part of the upper fixed seat are respectively provided with a first groove and a second groove; the inner surface of the upper part of the upper fixed seat is provided with a spring groove, and a spring is arranged in the spring groove; one side of the upper fixing seat is provided with a through hole, and a bolt is inserted into the through hole; the middle part of the upper fixed seat is provided with a limit block; the top of the punch is provided with a bulge, and one side of the bulge is provided with a screw hole; the bolt is in threaded connection with the screw hole.

In view of the above-mentioned related art, the inventors believe that the product processed by the above-mentioned apparatus may have a case where the periphery is wrinkled, which affects the product quality.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the periphery of a product processed by a stamping die can wrinkle, the application provides the stamping die.

The application provides a stamping die adopts following technical scheme:

the utility model provides a stamping die, includes die board and convex plate, die board and convex plate parallel arrangement, be provided with the boss on the convex plate, the boss includes waste material district and two finished product districts, two the both sides in waste material district are located respectively to the finished product district, the lateral wall in waste material district is provided with the shrink piece, set up on the die board and supply boss male recess.

Through adopting above-mentioned technical scheme, treat that extruded material places on the boss, the die board receives the extrusion force and removes to the die board direction, and the material is pressed into corresponding shape when boss and recess cooperation extruded material, and at the material extruded in-process, the shrink piece makes the material that is in the finished product district draw close to the waste material district, and the product that extrudes this moment is in the peripheral part in finished product district and can not corrugate, improves the quality of the product of punching press out.

Optionally, a discharging plate is arranged between the concave template and the convex template, a positioning hole for the boss to pass through is formed in the discharging plate, a positioning assembly is arranged on the discharging plate and comprises positioning columns, and the positioning columns are circumferentially arranged at the opening edge of the positioning hole at intervals.

By adopting the technical scheme, the material to be punched is placed on the discharging block, and the lug passes through the boss and penetrates through the positioning hole to punch the material. The setting of reference column makes the material fix on the stripper, avoids stamping die to add man-hour to the material, and the condition that the material fell out from the stripper takes place.

Optionally, one end of the positioning column, which is far away from the discharging plate, is connected with a pre-positioning block, and the pre-positioning block and the positioning column are obliquely arranged.

Through adopting above-mentioned technical scheme, the preset block slope sets up and makes the material of treating processing can be easier place on the stripper to it is tight to be pressed from both sides by the reference column. Meanwhile, the pre-positioning column provides a slightly moving space for the material to be processed, so that the material is prevented from being extruded in the processing process, and the condition that the thickness of the material exceeds the positioning column when a worker adds the material to the discharging plate is avoided, so that the condition that the material flies out without being clamped in the processing process is avoided.

Optionally, the positioning assembly further includes a fixing seat and a reinforcing plate, the fixing seat is connected to the discharging plate, one end of the fixing seat, which is far away from the discharging plate, is connected to the reinforcing plate, and one end of the reinforcing plate is connected to the positioning column.

Through adopting above-mentioned technical scheme, in the course of working of material, the material is too big to the extrusion force of reference column, and the setting up of reinforcing plate has strengthened the resistant extrusion degree of reference column, makes the material at the in-process of punching press, and the reference column can not be because of the too big and buckled of extrusion force to guarantee the normal use of reference column.

Optionally, a threaded hole is formed in the discharging plate, a mounting hole aligned with the threaded hole is formed in the fixing seat, and the bolt penetrates through the mounting hole and is in threaded connection with the threaded hole.

Through adopting above-mentioned technical scheme, the fixing base passes through the bolt and is connected with the stripper, when having satisfied the fixed strength requirement, makes the fixing base easily install. When the reinforcing plate on the fixing seat is damaged, the fixing seat is convenient to replace. Meanwhile, the fixing seat also has a supporting effect on the positioning column, and the extrusion resistance degree of the positioning column is further enhanced.

Optionally, the male die plate is connected with a discharging screw, the discharging plate is provided with a fixing hole for the discharging screw to pass through, the female die plate is provided with a clamping groove aligned with the fixing hole, the side wall of the discharging screw is provided with a limiting ring, the side wall of the fixing hole is circumferentially provided with a limiting groove for the limiting ring to slide, and the limiting groove penetrates through one end of the discharging plate far away from the male die plate.

By adopting the technical scheme, the stripper plate can be fixed with the convex template, and the stripper plate is convenient to disassemble. When the stripper plate does not receive the extrusion force rebound of die plate, spacing ring and spacing groove bottom surface joint make the stripper plate can not break away from with the die plate, have guaranteed the normal use of stripper plate on the die plate.

Optionally, a placing groove is formed in one end, close to the discharging plate, of the concave die plate, and a discharging spring column is connected in the placing groove.

By adopting the technical scheme, when the die is used for stamping, the discharging spring column gives a pressing force to the unprocessed material, so that the material can not move due to the action of force before the die is processed. After the die finishes processing the material, the groove is tightly connected with the material, and the discharging spring column applies discharging force to the material, so that the groove and the material can be stably separated without influencing the deformation of the material.

Optionally, the end face of the convex die close to the stripper plate is provided with a lower limiting column, and the end face of the stripper plate close to the convex die is provided with an upper limiting column.

Through adopting above-mentioned technical scheme, when the staff to the high design mistake between boss and the recess, last spacing post supports tightly with lower spacing post in the stamping process, makes the stripper can not continue to remove to the convex die board and damage the mould to go up the setting of spacing post and lower spacing post and play the guard action to mould and inside mold insert.

Optionally, the die comprises an upper die holder and a lower die holder, wherein the upper die holder is arranged above the concave die plate, an upper padding plate is arranged between the upper die holder and the concave die plate, the lower die holder is arranged below the convex die plate, and a lower padding plate is arranged between the lower die holder and the convex die plate.

Through adopting above-mentioned technical scheme, the cope match-plate pattern carries out the application of force to the die board and makes the die board remove to the die board direction, and when boss and recess punched the material, the stress that the upper padding plate bore recess or inside mold insert lets back, avoids the cope match-plate pattern to take place to cave in or warp. The lower backing plate is used for bearing the force generated by the boss and the inner insert of the material in the stamping process, and preventing the lower die holder from sinking or deforming.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the shrinkage block ensures that the periphery of the produced product does not wrinkle in the stamping process of the material, thereby improving the quality of the product;

2. the arrangement of the positioning column enables the material to be processed to be positioned at a preset place, so that the processing failure caused by the movement of the material in the processing process is avoided;

3. the arrangement of the reinforcing plate improves the extrusion resistance degree of the positioning column, so that the positioning column can bear side force generated in the process of larger stamping.

Drawings

Fig. 1 is an exploded view of a stamping die according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a boss according to an embodiment of the present application;

FIG. 3 is an exploded view of the stripper plate and positioning assembly of an embodiment of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a cross-sectional view of a cavity plate and stripper plate in accordance with an embodiment of the present application;

fig. 6 is an enlarged view of a portion B in fig. 5.

Description of reference numerals: 1. a cavity plate; 2. a convex template; 3. a boss; 31. a waste zone; 32. a finished product area; 4. a contraction block; 5. a groove; 6. a stripper plate; 7. positioning holes; 8. a positioning column; 9. pre-positioning blocks; 10. a fixed seat; 11. a reinforcing plate; 12. a threaded hole; 13. mounting holes; 14. a discharge screw; 15. a fixing hole; 16. abutting against the groove; 17. a limiting ring; 18. a limiting groove; 19. a placement groove; 20. a discharge spring post; 21. a lower restraint post; 22. an upper limiting column; 23. an upper die holder; 24. a lower die holder; 25. an upper base plate; 26. and a lower cushion plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a stamping die. Referring to fig. 1 and 2, the stamping die includes an upper die base 23, and the upper die base 23 is rectangular parallelepiped. An upper backing plate 25 is welded on the lower end face of the upper die holder 23, the upper backing plate 25 is cuboid, and the upper backing plate 25 and the upper die holder 23 are coaxially arranged. The upper die holder 23 is used for applying extrusion force, and when the stamping die works, the upper backing plate 25 is arranged to bear the yielding stress of stamping, so that the upper die holder 23 is prevented from being extruded and dented or deformed. The die board 1 is welded at one end, far away from the upper die base 23, of the upper backing plate 25, the die board 1 is cuboid and the die board 1 and the upper backing plate 25 are coaxially arranged, and the cross section of the die board 1 is the same as that of the upper backing plate 25 in shape and size. A groove 5 is formed in one end face, far away from the upper backing plate 25, of the concave template 1, and the groove 5 and the concave template 1 are arranged coaxially. The lower part of the concave template 1 is coaxially provided with a convex template 2, and the cross section of the convex template 2 has the same shape and size as the cross section of the upper backing plate 25. The convex template 2 is welded with a boss 3 matched with the groove 5, and the boss 3 and the convex template 2 are coaxially arranged. The boss 3 is divided into a waste material area 31 and two finished product areas 32, the two finished product areas 32 are respectively connected to two sides of the waste material area 31, a shrinkage block 4 is welded on the side wall of the waste material area 31, and two sides of the shrinkage block 4 are close to the finished product areas 32. In the stamping process of the stamping die, the material to be processed is stamped into a corresponding shape through the matching of the boss 3 and the groove 5, and the material of the finished product area 32 is drawn close to the waste material area 31 through the shrinkage block 4, so that the material on the periphery of the finished product area 32 cannot wrinkle, and the quality of the produced product is ensured. The end of the convex die plate 2 far away from the concave die plate 1 is welded with a lower backing plate 26, the cross section of the lower backing plate 26 is the same as that of the convex die plate 2, and the lower backing plate 26 and the convex die plate 2 are coaxially arranged. The welding of the one end of keeping away from the convex die board 2 on the lower bolster 26 has lower bolster 24, and the shape of lower bolster 24 is cuboid and lower bolster 24 and the coaxial setting of lower bolster 26, and lower bolster 24 is used for placing some other mold inserts, the stamping die's of being convenient for use. The lower backing plate 26 is arranged for bearing the yielding stress generated by the boss 3 or other inserts in the stamping process, and the possibility of sinking or deformation caused by overlarge yielding stress on the lower die base 24 is reduced.

A stripper plate 6 is arranged between the cavity plate 1 and the cavity plate 2, and the stripper plate 6 and the cavity plate 1 are coaxially arranged. The setting of stripper 6 is used for placing the material of treating the processing and is convenient for take off the material that the processing was accomplished, sets up the locating hole 7 that supplies boss 3 to pass on the stripper 6, moves down extrusion stripper 6 at stamping process die board 1 and makes stripper 6 move down, and stripper 6 passes locating hole 7 and recess 5 cooperation to the in-process boss 3 that 2 are close to of die board, realizes treating the punching press of processing material. Eight upper limiting columns 22 are welded at the lower end face edge of the discharging plate 6 at intervals in the circumferential direction, lower limiting columns 21 aligned with the upper limiting columns 22 are welded on the upper end face of the convex template 2, the upper limiting columns 22 and the lower limiting columns 21 are both cylindrical, and the axes of the upper limiting columns 22 and the lower limiting columns 21 are perpendicular to the upper end face of the convex template 2. When a worker punches the mold due to wrong design of the height of the mold, the upper limiting column 22 and the lower limiting column 21 are tightly abutted to prevent the stripper plate 6 from continuously moving downwards, so that the possibility of damage to the mold due to continuous downward movement of the stripper plate 6 is reduced, and the mold and other inserts inside the mold are protected.

Referring to fig. 3 and 4, the stripper plate 6 is provided with a locating assembly at the edge of the opening of the locating hole 7. The positioning assembly comprises a positioning column 8. Fixing base 10 and reinforcing plate 11, the shape of reference column 8 is the cylinder and the axis of reference column 8 is perpendicular to the up end of stripper 6. The positioning posts 8 circumferentially abut against the opening edge of the positioning hole 7 at intervals, and the number of the positioning posts 8 is at least four, which is illustrated by eight positioning posts 8 in the embodiment. The setting of reference column 8 makes the material of treating processing place on stripper 6 when, can fix on stripper 6, can not remove on stripper 6, avoids the condition emergence that drops from stripper 6 at punching press in-process material. A pre-positioning block 9 is integrally formed at one end, far away from the discharging plate 6, of the positioning column 8, the pre-positioning block 9 is cylindrical, and the axis of the pre-positioning block 9 is intersected with the axis of the positioning column 8. The pre-positioning block 9 is arranged in a direction away from the center of the discharging plate 6 in an inclined way relative to the positioning column 8, so that the material to be processed can be more easily arranged and positioned on the discharging plate 6. Meanwhile, the materials are likely to move upwards in the process of stamping the materials, and the pre-positioning block 9 limits the materials so that the materials cannot fall out. The fixing base 10 is a cuboid, a reinforcing plate 11 is integrally formed on the upper end face of the fixing base 10, the cross section of the reinforcing plate 11 is in the shape of a right-angled triangle, a right-angled edge on the reinforcing plate 11 is attached to the upper end face of the fixing base 10, and the other right-angled edge is welded with the positioning column 8. The setting of reinforcing plate 11 has strengthened the interior extrusion degree of reference column 8, makes reinforcing plate 11 can bear bigger side force, avoids reference column 8 to receive too big side force and cracked condition emergence. The mounting hole 13 has been seted up on the fixing base 10, the setting of 13 perpendicular to fixing base 10 up end of mounting hole, screw hole 12 that aligns with mounting hole 13 is seted up to 6 up ends of stripper, passes mounting hole 13 through the bolt and realizes the fixed of locating component on stripper 6 with screw hole 12 threaded connection, when having the part to damage on the locating component, the cancellation bolt can be changed locating component with being connected of screw hole 12, the staff's of being convenient for operation.

Referring to fig. 5 and 6, the upper end surface of the male die plate 2 is in threaded connection with a discharging screw 14, a fixing hole 15 for the discharging screw 14 to pass through is formed in the discharging plate 6, the cross section of the fixing hole 15 is the same as that of the discharging screw 14, the discharging plate 6 and the male die plate 2 are fixed through the discharging screw 14, and meanwhile when the discharging plate 6 is extruded to move downwards, the discharging plate 6 can move along the track of the discharging screw 14, so that the discharging plate 6 cannot move left and right to affect the normal use of the stamping die. The lower end face of the concave die plate 1 is provided with a pressing groove 16 abutted with the discharging screw 14, and in the stamping process, the discharging screw 14 enters the pressing groove 16 and abuts against the bottom face of the pressing groove 16. The side wall circumference welding of unloading screw 14 has spacing ring 17, and the cross sectional shape of spacing ring 17 is the ring, and the lateral wall circumference of fixed orifices 15 is seted up the spacing groove 18 that supplies spacing ring 17 to slide, and spacing groove 18 runs through the up end of stripper 6, and in the stripper 6 reset process after the punching press was ended, spacing ring 17 and the joint of spacing groove 18 bottom surface made stripper 6 can not break away from with unloading screw 14. The lower end surface of the cavity plate 1 is provided with a plurality of placing grooves 19, the cross section of each placing groove 19 is circular, and the axis of each placing groove 19 is perpendicular to the lower end surface of the cavity plate 1. The holding groove 19 is provided with a discharge spring post 20, and when the cavity plate 1 is not contacted with the discharge plate 6, the end of the discharge spring post 20 extends out of the opening of the holding groove 19. When the cavity plate 1 contacts the stripper plate 6, the end of the stripper spring column 20 retracts into the placement groove 19, and a pressing force is applied to the material to be processed on the stripper plate 6, so that the material is pressed tightly, and the material does not move due to the action of force before the die is not processed. After the material is processed by the die, the groove 5 is tightly connected with the material, and the discharging spring column 20 applies discharging force to the material, so that the groove 5 and the material can be smoothly separated from each other without influencing the deformation of the material.

The implementation principle of the stamping die in the embodiment of the application is as follows: to treat that the material of processing is placed on stripper 6, fix the material through reference column 8, make upper die base 23 downstream to the application of force of upper die base 23, upper die base 23 drives die board 1 downstream, when die board 1 moves to and stripper 6 butt, die board 1 compresses tightly the material of treating the processing and drives stripper 6 downstream, boss 3 on the die board 2 passes locating hole 7 and recess 5 cooperation, the realization is to the punching press of material, in the punching press process, shrink piece 4 makes the peripheral material of finished product district 32 draw close to waste material district 31, therefore the peripheral material of finished product district 32 can not corrugate, product quality has been guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A stamping die is characterized in that: including die board (1) and die board (2), die board (1) and die board (2) parallel arrangement, be provided with boss (3) on die board (2), boss (3) are including waste material district (31) and two finished product districts (32), two the both sides in waste material district (31) are located respectively in finished product district (32), the lateral wall in waste material district (31) is provided with shrink piece (4), offer on die board (1) and supply boss (3) male recess (5).

2. The stamping die of claim 1, wherein: be provided with stripper (6) between die board (1) and die board (2), set up locating hole (7) that supply boss (3) to pass on stripper (6), be provided with locating component on stripper (6), locating component includes reference column (8), reference column (8) circumference interval sets up in locating hole (7) opening edge.

3. The stamping die of claim 2, wherein: one end, far away from the discharging plate (6), of the positioning column (8) is connected with a pre-positioning block (9), and the pre-positioning block (9) and the positioning column (8) are arranged in an inclined mode.

4. The stamping die of claim 3, wherein: the positioning assembly further comprises a fixed seat (10) and a reinforcing plate (11), the fixed seat (10) is connected to the discharging plate (6), one end, far away from the discharging plate (6), of the fixed seat (10) is connected to the reinforcing plate (11), and one end of the reinforcing plate (11) is connected to the positioning column (8).

5. The stamping die of claim 4, wherein: threaded holes (12) are formed in the discharging plate (6), mounting holes (13) aligned with the threaded holes (12) are formed in the fixing seat (10), and bolts penetrate through the mounting holes (13) to be in threaded connection with the threaded holes (12).

6. The stamping die of claim 2, wherein: the die plate is characterized in that the male die plate (2) is connected with a discharging screw (14), a fixing hole (15) for the discharging screw (14) to pass through is formed in the discharging plate (6), a tight abutting groove (16) aligned with the fixing hole (15) is formed in the female die plate (1), a limiting ring (17) is arranged on the side wall of the discharging screw (14), a limiting groove (18) for the limiting ring (17) to slide is formed in the circumferential direction of the side wall of the fixing hole (15), and the limiting groove (18) penetrates through one end, far away from the male die plate (2), of the discharging plate (6).

7. The stamping die of claim 1, wherein: a placing groove (19) is formed in one end, close to the discharging plate (6), of the concave template (1), and a discharging spring column (20) is connected into the placing groove (19).

8. The stamping die of claim 2, wherein: the end face, close to the stripper plate (6), of the convex template (2) is provided with a lower limiting column (21), and the end face, close to the convex template (2), of the stripper plate (6) is provided with an upper limiting column (22).

9. The stamping die of claim 1, wherein: still include upper die base (23) and die holder (24), die board (1) top is located in upper die base (23), be provided with between upper die base (23) and die board (1) upper padding plate (25), die holder (24) are located convex die board (2) below, be provided with between die holder (24) and convex die board (2) lower padding plate (26).