CN215315113U

CN215315113U - Elastic sheet stamping die

Info

Publication number: CN215315113U
Application number: CN202120328862.2U
Authority: CN
Inventors: 张亚毅; 傅英军; 梁华; 杜都都
Original assignee: Ningbo Hengbo Electromagnetic Technology Co ltd
Current assignee: Ningbo Hengbo Electromagnetic Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-28
Anticipated expiration: 2031-02-05

Abstract

The utility model provides a spring plate stamping die and relates to the technical field of dies. An elastic piece stamping die, comprising: the material belt clamping mechanism is arranged on the base; the mold clamping mechanism comprises a first mold clamping assembly and a second mold clamping assembly which are oppositely arranged on the base; the stamping mechanism comprises a first stamping component and a second stamping component which are respectively and correspondingly inserted on the first die assembly component and the second die assembly component; and the pressing mechanism comprises a pressing plate, a first guide rod and a second guide rod, the first guide rod and the second guide rod are respectively fixedly connected with the pressing plate, the first guide rod is in wedge-shaped fit with the first die closing assembly, the first guide rod is in butt fit with the first stamping assembly, the second guide rod is in wedge-shaped fit with the second die closing assembly, and the second guide rod is in butt fit with the second stamping assembly. Through the elastic sheet stamping die, the stamped-out parting line of the elastic sheet can be positioned in the middle of the side surface of the elastic sheet.

Description

Elastic sheet stamping die

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a spring plate stamping die.

Background

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 thereof, thereby obtaining a desired part. 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).

Chinese utility model patent that publication number is CN110405072A discloses a metal shrapnel stamping die, including base, template, extension board, hydraulic stem, bed die, connecting axle, first gear, fixed axle, backup pad, connecting plate, first spring, cross axle, second gear, rocking handle, guide bar, stay cord, slide, second spring, clamp plate, baffle, montant, third spring, loop bar, bottom plate, first mould, mould on the second, connecting rod, roof, pinion rack, riser, gear shaft, band pulley, belt and motor.

The stamping mode of shell fragment among the prior art is generally that the compound die is carried out to vertical direction, and the drift carries out unilateral punching press from top to bottom, and the parting line of the shell fragment of punching press is partial to one side to there is slight difference in the mechanical properties of messenger's shell fragment tow sides.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a spring plate stamping die which can convert the vertical motion of a pressing mechanism into the horizontal motion of a die assembly mechanism and a stamping mechanism, so that double-side stamping is realized, and the parting line of the stamped spring plate is positioned in the middle of the side surface of the spring plate.

The purpose of the utility model can be realized by the following technical scheme: an elastic piece stamping die, comprising:

the material belt clamping mechanism is arranged on the base;

the clamping mechanism comprises a first clamping component and a second clamping component which are oppositely arranged on the base;

the stamping mechanism comprises a first stamping component and a second stamping component which are respectively and correspondingly inserted on the first die assembly component and the second die assembly component;

the pressing mechanism comprises a pressing plate, a first guide rod and a second guide rod, the first guide rod and the second guide rod are fixedly connected with the pressing plate respectively, the first guide rod is in wedge-shaped fit with the first die assembly component, the first guide rod is in butt fit with the first stamping component, the second guide rod is in wedge-shaped fit with the second die assembly component, and the second guide rod is in butt fit with the second stamping component.

As a further development of the utility model, the first guide bar comprises a first long bar which is in wedge-fit engagement with the first clamping unit and a first short bar which is in abutting engagement with the first punch unit, and the second guide bar comprises a second long bar which is in wedge-fit engagement with the second clamping unit and a second short bar which is in abutting engagement with the second punch unit.

As a further improvement of the present invention, the length of the first stub is not identical to the length of the second stub.

As a further improvement of the present invention, the first and second stamping assemblies each include a stamping block, a stamping rod, an inner punch and an outer punch, the first and second die closing assemblies each include a first die plate, the first die plate is provided with a second groove, the stamping block is disposed in the corresponding second groove, one end of the stamping rod is fixedly connected to the corresponding stamping block, the other end of the stamping rod is fixedly connected to the corresponding outer punch, and the inner punch is inserted into the corresponding outer punch.

As a further improvement of the utility model, the outer punch comprises a punching part and an enclosing part, a third through hole is arranged on the cross section of the punching part, an outer ring waist-shaped hole far away from the edge and an inner ring waist-shaped hole close to the edge are arranged along the edge of the third through hole, the gap between two adjacent outer ring waist-shaped holes corresponds to the position of the inner ring waist-shaped hole, and the third through hole, a first ring enclosed by the plurality of inner ring waist-shaped holes and a second ring enclosed by the plurality of outer ring waist-shaped holes are coaxially arranged.

As a further improvement of the present invention, an elastic ring is sleeved on the stamping part, and the elastic ring abuts against the surrounding part.

As a further improvement of the utility model, the second groove is provided with two opposite waist holes, wherein the connecting rod penetrates through the stamping block, and two ends of the connecting rod are respectively in inserting fit with the corresponding waist holes.

As a further improvement of the present invention, the present invention further comprises a reset mechanism, wherein the reset mechanism comprises a rod member, a spring and a limit piece, the rod member is inserted into the first template, the limit piece is sleeved on the rod member and is fixedly connected with the rod member, the reset spring is sleeved on the rod member, one end of the reset spring is abutted against the limit piece, and the other end of the reset spring is abutted against the first template.

The improved clamping device further comprises a guide rod, wherein the guide rod is arranged in the clamping mechanism in a penetrating mode and used for guiding the clamping mechanism.

As a further improvement of the present invention, the first mold clamping unit and the second mold clamping unit are engaged with each other in a concavo-convex manner during mold clamping.

Drawings

Fig. 1 is a schematic view of the spring plate stamping die.

Fig. 2 is a schematic view of the present spring plate press mold (excluding the mold clamping mechanism).

Fig. 3 is a top view of the second pressing plate in the spring plate stamping die.

Fig. 4 is a front view of the first guide rod in the spring plate stamping die.

Fig. 5 is a front view of the second guide bar in the present spring plate stamping die.

Fig. 6 is a front view of the first mold plate in the present spring plate stamping mold.

Fig. 7 is a front view of the present spring plate press mold (excluding the mold clamping mechanism).

Fig. 8 is a sectional view of the present spring plate press mold.

Fig. 9 is a left side view of the inner punch of the spring plate punching die.

Fig. 10 is a front view of the inner punch of the present spring plate press mold.

Fig. 11 is a left side view of the outer punch of the present spring plate press mold.

Fig. 12 is a front view of the outer punch of the present spring plate press mold.

In the figure, 110, a first pressure plate; 111. a first through hole; 120. a second platen; 121. a second through hole; 122. a first blind hole; 210. a first guide bar; 211. a first long rod; 212. a first short bar; 213. a second inclined plane; 220. a second guide bar; 221. a second long rod; 222. a second short bar; 223. a third inclined plane; 310. a first template; 311. a first inclined plane; 312. a first groove; 313. a second groove; 314. mounting holes; 315. a waist hole; 320. a second template; 330. a third template; 340. a fourth template; 350. a fifth template; 360. a guide bar; 410. a rod member; 420. a spring; 430. a limiting sheet; 510. stamping the blocks; 511. a connecting rod; 520. a stamping rod; 530. an inner punch; 531. a rod portion; 531a, a first protrusion; 532. a limiting part; 540. an outer punch; 541. a punching part; 541a, a third through hole; 541b, a kidney-shaped hole; 542. an enclosing section; 550. an elastic ring; 600. a material belt clamping seat; 700. a base.

Detailed Description

The following is a specific embodiment of the present invention, and the technical solution of the present invention is further described with reference to fig. 1 to 6, but the present invention is not limited to this embodiment.

The utility model provides a spring plate stamping die, which comprises: base 700, locking mechanism, punching press mechanism and pushing down the mechanism. Base 700 integrated into one piece has a bottom surface and two sides, is "character cut in bas-relief", the center of base 700 bottom surface is provided with a fillet rectangle through-hole for receive stamping forming's shell fragment, the both sides of fillet rectangle through-hole are provided with material area grip slipper 600, are used for the material area of the punching press is treated in the centre gripping.

The clamping mechanism comprises a first clamping assembly and a second clamping assembly which are oppositely arranged on the base. The first mold closing assembly comprises a first mold plate 310, a second mold plate 320 and a fourth mold plate 340 which are sequentially arranged on the base, and the second mold closing assembly comprises a first mold plate 310, a second mold plate 320 and a fifth mold plate 350 which are sequentially arranged on the base. Optionally, the first and second clamp assemblies further comprise one or more third dies 330 for guiding the press mechanism.

The stamping mechanism comprises a first stamping component and a second stamping component, the first stamping component is inserted into the first die assembly component, and the second stamping component is inserted into the second die assembly component.

The pressing mechanism comprises a first pressing plate 110, a second pressing plate 120, a first guide rod 210 and a second guide rod 220, wherein six first through holes 111 are formed in the first pressing plate 110. The second pressing plate 120 is provided with two second through holes 121 and two first blind holes 122, the second through holes 121 are rectangular, and the first pressing plate 110 and the second pressing plate 120 are connected through the second through holes 121 and the first blind holes 122 by bolts. The first guide rod 210 is provided with two first long rods 211 and a first short rod 212, and the first short rod 212 is arranged between the two first long rods 211; the second guide rod 220 is provided with two second long rods 221 and a second short rod 222, and the second short rod 222 is arranged between the two second long rods 221. The first guide bar 210 and the second guide bar 220 are respectively inserted into the two second through holes 121, and are connected to the first pressing plate 110 by bolts through the four first through holes 111. The first guide bar 210 and the second guide bar 220 respectively abut against the two first templates 310. When the pressing mechanism presses downwards for a certain distance along the vertical direction, the first die closing assembly and the second die closing assembly are folded along the horizontal direction, and when the pressing mechanism continues to press downwards for a certain distance, the first punching assembly and the second punching assembly punch oppositely. This application can convert the vertical motion of pushing down the mechanism into the horizontal motion of locking mechanism and punching press mechanism, realizes two side punching presses simultaneously for the parting line of the shell fragment of punching press out is in the intermediate position of shell fragment side.

Further, the first mold plate 310 is provided with two first inclined surfaces 311, one side of the first long rod 211 and the second long rod 221 abutting against the first mold plate 310 is provided with a second inclined surface 213 and a third inclined surface 223, the first inclined surface 311 of one first mold plate 310 abuts against the second inclined surface 213, and the first inclined surface 311 of the other first mold plate 310 abuts against the third inclined surface 223. By providing the inclined surfaces on the first guide bar 210, the second guide bar 220, and the first mold plate 310, the vertical movement of the pressing mechanism can be efficiently converted into the horizontal movement of the mold clamping mechanism.

Further, the first punching assembly and the second punching assembly each comprise a punching block 510, a punching rod 520, an inner punch 530 and an outer punch 540. The first template 310 has a first groove 312 and a second groove 313 which are communicated with each other, and in an initial state, the first short rod 212 and the second short rod 222 are respectively arranged in the corresponding first grooves 312. The punching block 510 is disposed in the second groove 313, one end of the punching rod 520 is disposed on the punching block 510 and fixedly connected to the punching block 510, the other end of the punching rod is disposed on the outer punch 540 and fixedly connected to the outer punch 540, the inner punch 530 is inserted into the outer punch 540 and abuts against the second die plate 320, the punching block 510 and the outer punch 540 are connected by disposing the punching rod 520, so that the vertical movement of the first short rod 212 or the second short rod 222 can be used to control the punching action of the outer punch 540, and the inner punch 530 is disposed to abut against the second die plate 320, so that the action of the inner punch 530 can be controlled by controlling the first long rod 212 or the second long rod 222.

Further, the outer punch 540 is integrally formed and comprises a punching part 541 and a surrounding part 542, the inner punch 530 comprises a rod part 531 and a limiting part 532, the rod part 531 is provided with a plurality of first protrusions 531a, and the limiting part 532 is sleeved on the first protrusions 531 a. The cross section center of the punching part 541 is provided with a third through hole 541a, and a waist-shaped hole 541b is arranged along the edge of the third through hole 541 a. The waist-shaped holes 541b comprise outer ring waist-shaped holes far away from the edge of the third through hole 541a and inner ring waist-shaped holes close to the edge of the third through hole 541a, a gap between every two adjacent outer ring waist-shaped holes corresponds to the position of each inner ring waist-shaped hole, and the third through hole 541a, a first circular ring formed by the plurality of inner ring waist-shaped holes and a second circular ring formed by the plurality of outer ring waist-shaped holes are coaxially arranged. The arrangement is such that the shape of the punch is adapted to the shape of the spring plate to be punched.

Further, the stamping part 541 is sleeved with an elastic ring 550, one end surface of the elastic ring 550 abuts against the surrounding part 542, the other end surface abuts against the fourth mold plate 340 or the fifth mold plate 350, when the outer punch 540 performs stamping, the elastic ring 550 is compressed, and the outer punch is reset through the elasticity of the elastic ring after the stamping is completed.

Further, the lengths of the first short rod 212 and the second short rod 222 are different, and in this embodiment, the length of the first short rod 212 is smaller than that of the second short rod 222. The lengths of the first short rod 212 and the second short rod 222 are set to be different, the corresponding outer punches 540 can be controlled to punch at different time, the outer punch 540 corresponding to one side with the long length of the short rod can punch firstly, and the other side with the short length of the short rod can punch secondly.

Further, a connecting rod 511 is arranged in the stamping block 510 perpendicularly to the moving direction, a waist hole 315 is arranged on the first template 310, and two end portions of the connecting rod 511 are inserted into the waist hole 315. The first template 310 moves towards the middle of the base under the action of the corresponding long rod, the first template 310 drives the stamping block 510 to move towards the middle of the base through the connecting rod 511, and the waist hole 315 enables the stamping block 510 to be applied in a small range under the condition that the first template 310 is not moved, namely, the outer punch 540 can perform stamping action.

Further, two first templates 310 are provided with a reset mechanism respectively, and the reset assembly includes: the rod piece 410 penetrates through the base 700 and is inserted into the mounting hole 314 of the first template 310, the limiting piece 430 is sleeved on the rod piece 410, the limiting piece 430 is fixedly connected with the rod piece 410, the reset spring is sleeved on the rod piece 410, one end of the reset spring is abutted against the limiting piece 430, and the other end of the reset spring is abutted against the base 700. The two first templates 310 are reset by setting a reset component.

Further, a third groove is formed in the fourth mold plate 340, a second protrusion is formed in the fifth mold plate 350, the fourth mold plate 340 and the fifth mold plate 350 are in concave-convex fit after mold closing, and meanwhile, four guide rods 360 penetrate through the mold closing mechanism and are used for controlling the movement direction of each mold plate in the mold closing process.

In summary, the present embodiment has at least the following technical effects:

1. according to the die clamping mechanism, the vertical motion of the pressing mechanism can be converted into the horizontal motion of the die clamping mechanism, and meanwhile, double-side stamping is realized, so that the parting line of the stamped elastic sheet is located in the middle of the side face of the elastic sheet;

2. the elastic ring is arranged on the outer punch, so that the outer punch can reset after one-time punching is finished;

3. set up first quarter butt length and be less than the length of second quarter butt for the first punching press of outer drift that the second quarter butt corresponds, punching press behind the outer drift that first quarter butt corresponds.

The stamping process of the stamping die for the spring plate of the embodiment is as follows:

1. the first pressing plate 110 is pressed down, and the long rods on the two sides push the die closing mechanism to move towards the middle;

2. when the long rods on the two sides move to be separated from the first inclined surface 311, the first die closing assembly and the second die closing assembly are closed, and meanwhile, the inner punch heads on the two sides tighten the material belt;

3. the first pressing plate 110 continues to move downwards, and the second short rod 222 pushes the corresponding punching block 510, so that the outer punch 540 corresponding to the second short rod 222 punches the material strip;

4. the first pressing plate 110 continues to move downwards, and the first short rod 212 pushes the corresponding punch block 510, so that the outer punch 540 corresponding to the first short rod 212 punches the strip, and the outer punch 540 corresponding to the second short rod 222 retreats under the action of the elastic ring 550.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides an elastic sheet stamping die which characterized in that includes:

the material belt clamping mechanism is arranged on the base;

2. The spring plate stamping die of claim 1, wherein the first guide bar comprises a first long bar in wedge engagement with the first clamp assembly and a first short bar in abutting engagement with the first stamping assembly, and the second guide bar comprises a second long bar in wedge engagement with the second clamp assembly and a second short bar in abutting engagement with the second stamping assembly.

3. The spring plate stamping die of claim 2, wherein the length of the first short rod is not consistent with the length of the second short rod.

4. The spring plate stamping die according to claim 2, wherein the first stamping assembly and the second stamping assembly each include a stamping block, a stamping rod, an inner punch and an outer punch, the first die assembly and the second die assembly each include a first die plate, a second groove is formed in the first die plate, the stamping block is arranged in the corresponding second groove, one end of the stamping rod is fixedly connected with the corresponding stamping block, the other end of the stamping rod is fixedly connected with the corresponding outer punch, and the inner punch is inserted into the corresponding outer punch.

5. The spring plate stamping die according to claim 4, wherein the outer punch comprises a stamping portion and a surrounding portion, a third through hole is formed in the cross section of the stamping portion, an outer ring waist-shaped hole far away from the edge and an inner ring waist-shaped hole close to the edge are formed in the edge of the third through hole, a gap between every two adjacent outer ring waist-shaped holes corresponds to the position of the inner ring waist-shaped hole, and a first circular ring formed by the third through hole, the plurality of inner ring waist-shaped holes and a second circular ring formed by the plurality of outer ring waist-shaped holes are coaxially arranged.

6. The spring plate stamping die according to claim 5, wherein an elastic ring is sleeved on the stamping part and abuts against the surrounding part.

7. The spring plate stamping die according to claim 4, wherein the second groove is provided with two opposite waist holes, wherein the connecting rod penetrates through the stamping block, and two ends of the connecting rod are respectively in inserting fit with the corresponding waist holes.

8. The spring plate stamping die according to claim 4, further comprising a reset mechanism, wherein the reset mechanism comprises a rod piece, a spring and a limiting piece, the rod piece is inserted into the first template, the limiting piece is sleeved on the rod piece and is fixedly connected with the rod piece, the spring is sleeved on the rod piece, one end of the spring is abutted against the limiting piece, and the other end of the spring is abutted against the first template.

9. The spring plate stamping die according to claim 1, further comprising a guide rod, wherein the guide rod is arranged in the die clamping mechanism in a penetrating manner and used for guiding the die clamping mechanism.

10. The spring plate stamping die of claim 1, wherein the first clamping assembly and the second clamping assembly are engaged in a concave-convex manner when clamped.