CN220196076U - Stamping die and stamping equipment - Google Patents

Abstract

The utility model discloses a stamping die and stamping equipment, and relates to the technical field of stamping processing, wherein the stamping die comprises an upper die and a lower die, the upper die comprises an upper die seat, a first male die and a second male die, the lower die comprises a lower die plate, the lower die plate is correspondingly and adaptively provided with a first female die and a second female die, the first male die is profiled with the outer contour of a blanking member, the second male die is annular, the outer annular end surface of the second male die exceeds the outer contour surface of the blanking member, the blanking stroke of the first male die is smaller than the thickness of the blanking member, and the second male die is used for blanking the outer side area of the blanking member. Wherein the stamping device comprises the stamping die. When the punching die and the punching equipment are used for processing the punched piece, the problem that microcracks on the profile section of the outer side of the punched piece are elongated to form a burr area is solved through twice forming and circumferential stripping, and the final quality of the punched piece is improved.

Description

Stamping die and stamping equipment

Technical Field

The utility model relates to the technical field of stamping processing, in particular to a stamping die and stamping equipment.

Background

The press working is a press working method for obtaining a desired blanking member by applying pressure to a material by using a press die mounted on a press machine, which is a main process equipment of the press working, to cause separation or plastic deformation thereof.

The stamping die on the stamping equipment in the prior art generally comprises an upper die and a lower die, wherein the upper die comprises a male die, the lower die correspondingly comprises a female die, the stamping equipment is used for forming a required blanking piece by driving the die closing of the upper die and the lower die, and finally the blanking piece is jacked and stripped by the female die inner insert.

However, when the punching device in the prior art processes the blanking member, deformation such as stretching, bending and transverse extrusion exists in the material belt material between the male die and the female die besides shear deformation, micro cracks can appear on the profile section of the blanking member near the edge of the male die and the female die, when the male die continues to move inwards the female die, the micro cracks can form burrs and be elongated, so that a burr area is formed and remains on the blanking member, and the burr area can influence the final quality of the blanking member.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problem that the quality of the blanking piece is affected because a burr area exists on the outer contour section of the blanking piece when the blanking piece is processed by punching equipment in the prior art.

In order to solve the above technical problems, the present utility model provides a stamping die, including an upper die and a lower die, the upper die includes:

an upper die holder;

the first male die is connected with the upper die base and is in profiling with the outer contour of the blanking piece;

the second male die is connected with the upper die holder, the second male die is annular, and the outer ring end face of the second male die exceeds the outer contour face of the blanking piece;

wherein the blanking travel of the first male die is smaller than the thickness of the blanking member, and the second male die is used for blanking the outer side area of the blanking member;

the lower die includes:

the lower die plate is provided with a first female die and a second female die, and the first female die is in embedded fit with the first male die; the second female die is in embedded fit with the second male die.

In one embodiment of the utility model, the upper die further comprises a spring and a stripper plate, two ends of the spring are respectively connected with the upper die base and the stripper plate, a plurality of abdication grooves are formed in the stripper plate, and the first male die and the second male die are arranged in the abdication grooves in a penetrating mode.

In one embodiment of the utility model, the upper die further comprises a guide post and a guide sleeve, wherein the guide post is connected with the upper die base, the guide sleeve is connected with the stripper plate, and the guide post is arranged in the guide sleeve in a penetrating manner and is in sliding connection.

In one embodiment of the present utility model, the upper die further includes a third punch, the third punch is connected to the upper die base, the third punch is disposed between the first punch and the second punch, and an end surface of the third punch exceeds an outer contour surface of the blanking member;

the lower die plate is provided with a third female die, an embedded part is arranged in the third female die, and the end face of the embedded part exceeds the outer contour face of the blanking part.

In one embodiment of the present utility model, the lower die further includes a lower die holder and a lower die pad plate, the lower die pad plate is connected between the lower die holder and the lower die plate, and one end of the insert is pressed against the lower die pad plate.

In one embodiment of the present utility model, the upper mold further includes an upper clamping plate, the upper clamping plate is connected to the upper mold base, and the first punch and the second punch are both connected to the upper clamping plate.

In one embodiment of the utility model, the upper die further comprises an upper backing plate, the upper backing plate is connected between the upper die holder and the upper clamping plate, and one ends of the first male die and the second male die are pressed against the upper backing plate.

In one embodiment of the utility model, the inner ring of the second punch is contoured to the outer contour of the blanking member.

In one embodiment of the present utility model, the upper die further includes a fourth punch, the fourth punch being connected to the upper die base, the fourth punch being disposed between the third punch and the second punch;

the lower die plate is provided with a fourth female die which is in embedded fit with the fourth male die.

In a second aspect, in order to solve the above technical problem, the present utility model provides a stamping device, including the stamping die.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the stamping die comprises an upper die and a lower die, wherein the upper die comprises an upper die seat, a first male die and a second male die, the lower die comprises a lower die plate, a first female die and a second female die are correspondingly and adaptively arranged on the lower die plate, when a blanking piece is processed, the first male die and the first female die are matched, the blanking stroke of the first male die is smaller than the thickness of the blanking piece, a material belt is broken under the action of the first male die and the first female die to form a semi-finished blanking piece, the semi-finished blanking piece is not separated from the material belt directly, the first male die stops moving downwards, and microcracks near a knife edge are prevented from being further elongated to form a burr area; and then the second male die and the second female die are matched at the position of the semi-finished product blanking piece, and the second male die blanks the outer side area, so that the material belt at the periphery of the semi-finished product blanking piece is forced to drop downwards, and the semi-finished product blanking piece is not required to move downwards to be stripped from the material belt, and the finished product blanking piece is obtained. When the punching die is used for processing the blanking piece, the problem that microcracks on the outer profile section of the blanking piece are elongated to form burr areas is solved through twice forming and circumferential stripping, and the final quality of the blanking piece is improved.

The stamping equipment comprises the stamping die, and the blanking die is used for blanking the material belt, so that the situation that a burr area appears on the section of the outer contour of the blanking part is reduced, and the quality of the blanking part is improved.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which

FIG. 1 is a schematic view showing the structure of a stamping die in a preferred embodiment of the present utility model;

FIG. 2 is an exploded view of the upper and lower dies of the stamping die shown in FIG. 1;

FIG. 3 is a cross-sectional view of a second punch of the stamping die shown in FIG. 1;

fig. 4 is a schematic view of the structure of the blanking member in the preferred embodiment of the present utility model.

Description of the specification reference numerals: 100. an upper die; 101. an upper die holder; 102. a first punch; 103. a second male die; 104. a spring; 105. a stripper plate; 106. a guide post; 107. guide sleeve; 108. a third male die; 109. an upper clamping plate; 110. an upper backing plate; 111. a fourth male die; 200. a lower die; 201. a lower template; 202. a first female die; 203. a second female die; 204. a third female die; 205. an insert; 206. a lower die holder; 207. a lower die backing plate; 208. a fourth female die; 300. and blanking the piece.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Example 1

Referring to fig. 1 to 4, the present utility model discloses a press mold including an upper mold 100 and a lower mold 200, the upper mold 100 including:

an upper die holder 101;

the first male die 102, the first male die 102 is connected with the upper die holder 101, and the first male die 102 is contoured with the outer contour of the blanking member 300;

the second male die 103, the second male die 103 is connected with the upper die holder 101, the second male die 103 is annular, and the outer ring end surface of the second male die 103 exceeds the outer contour surface of the blanking member 300;

wherein, the blanking travel of the first male die 102 is smaller than the thickness of the blanking member 300, and the second male die 103 is used for blanking the outer side area of the blanking member 300;

the lower die 200 includes:

the lower die plate 201, the lower die plate 201 is provided with a first female die 202 and a second female die 203, and the first female die 202 is embedded and matched with the first male die 102; the second female die 203 is in embedded fit with the second male die 103.

When the punching die is used for processing the blanking member, the first male die 102 and the first female die 202 are clamped, the blanking stroke of the first male die 102 is smaller than the thickness of the blanking member 300, so that a material belt is broken under the action of the first male die 102 and the first female die 202 to form a semi-finished product blanking member, the semi-finished product blanking member is not separated from the material belt directly, preferably, the blanking distance of the first male die 102 can be two thirds of the thickness of the blanking member 300, and the first male die 102 stops moving downwards, so that microcracks near a knife edge are prevented from being further elongated to form a burr area; then the second male die 103 and the second female die 203 are clamped at the position of the semi-finished blanking member, the second male die 103 punches the outer side area, so that the material belt on the periphery of the semi-finished blanking member is forced to drop downwards, the material belt can be separated from the material belt without downward movement of the semi-finished blanking member, and the finished blanking member 300 is obtained, preferably, a large blanking gap is arranged between the second male die 103 and the second female die 203, so that the material belt on the periphery of the semi-finished blanking member is forced to be separated from the semi-finished blanking member conveniently. When the punching die is used for processing the blanking piece, the problem that microcracks on the outer profile section of the blanking piece 300 are elongated to form burr areas is solved through twice forming and circumferential stripping, and the final quality of the blanking piece 300 is improved.

With reference to fig. 3 and 4, in the present embodiment, it is preferred that the inner ring of the second punch 103 follows the outer contour of the finished blanking member 300. The shape of the finished blanking member 300 is not particularly limited. By arranging the inner ring to be in profiling with the outer contour of the finished blanking member 300, the semi-finished blanking member is ensured to be smoothly separated from the peripheral side material belt along the outer contour line, so that the blanking member 300 is achieved, and the quality of the outer contour section of the blanking member 300 is improved.

Referring to fig. 1, in this embodiment, preferably, the upper mold 100 further includes a spring 104 and a stripper plate 105, two ends of the spring 104 are respectively connected with the upper mold base 101 and the stripper plate 105, the stripper plate 105 is provided with a plurality of relief grooves, and the first male mold 102 and the second male mold 103 are arranged in the relief grooves in a penetrating manner.

By arranging the stripper plate 105, the upper die holder 101 moves downwards when the stamping die processes the blanking piece, the stripper plate 105 is firstly contacted with the material belt, the material belt is compressed, and the stability during blanking is improved; then the upper die holder 101 drives the first punch 102 and the second punch 103 to move downwards continuously, and the spring 104 is compressed until the first punch 102 and the second punch 103 complete blanking action; then the upper die holder 101 drives the first male die 102 and the second male die 103 to move upwards, the stripper 105 continuously abuts against the material belt under the action of the elastic force of the spring 104, the first male die 102 and the second male die 103 are conveniently and rapidly separated from the material belt, and the upper die holder 101 continues to move upwards until the spring 104 is reset, and the stripper 105 is separated from contact with the material belt.

In this embodiment, specifically, the upper mold 100 further includes a guide pillar 106 and a guide sleeve 107, where the guide pillar 106 is connected to the upper mold base 101, the guide sleeve 107 is connected to the stripper plate 105, and the guide pillar 106 is disposed through the guide sleeve 107 and slidably connected.

Through setting up guide pillar 106 and guide pin bushing 107, play the guide effect to taking off flitch 105 motion, improved the stability that takes off flitch 105 motion, guaranteed blanking precision.

In this embodiment, the upper die 100 further includes a third punch 108, the third punch 108 is connected to the upper die holder 101, the third punch 108 is disposed between the first punch 102 and the second punch 103, and an end surface of the third punch 108 exceeds an outer contour surface of the blanking member 300;

the lower die plate 201 is provided with a third female die 204, an insert 205 is arranged in the third female die 204, and the end surface of the insert 205 exceeds the outer contour surface of the blanking member 300.

By arranging the third male die 108 and the embedded part 205, after the first male die 102 and the first female die 202 are used for punching to form a semi-finished product punching part, the semi-finished product punching part has a certain displacement relative to the thickness direction of the material belt, and the third male die 108 and the embedded part 205 are simultaneously pressed and leveled from two sides of the semi-finished product punching part, so that the semi-finished product punching part and the material belt are kept on the same plane again, the flatness requirement is ensured, the subsequent processing steps are convenient, and the punching quality is improved.

In this embodiment, the lower mold 200 further includes a lower mold base 206 and a lower mold pad 207, the lower mold pad 207 is connected between the lower mold base 206 and the lower mold plate 201, and one end of the insert 205 is pressed against the lower mold pad 207.

Through setting up lower mould backing plate 207, lower mould backing plate 207 sets up the one end at the inserts 205 for bear the atress of inserts 205 in the punching process and give back, avoid inserts 205 to cause the damage to die holder 206, improved stamping die's reliability.

In this embodiment, specifically, the upper die 100 further includes an upper clamping plate 109, the upper clamping plate 109 is connected to the upper die holder 101, and the first punch 102 and the second punch 103 are both connected to the upper clamping plate 109. The upper die 100 further comprises an upper base plate 110, the upper base plate 110 is connected between the upper die holder 101 and the upper clamping plate 109, and one ends of the first punch 102 and the second punch 103 are respectively pressed against the upper base plate 110. The upper die holder 101, the upper clamping plate 109 and the upper backing plate 110 are connected through bolts.

The upper clamping plate 109 is used for installing and connecting the first male die 102 and the second male die 103, and by arranging the upper base plate 110, the upper base plate 110 is used for bearing stress return of the first male die 102 and the second male die 103 during blanking, so that damage to the upper die holder 101 is avoided, and the reliability of the stamping die is improved.

In this embodiment, preferably, the upper die 100 further includes a fourth punch 111, the fourth punch 111 is connected to the upper die holder 101, and the fourth punch 111 is disposed between the third punch 108 and the second punch 103;

the lower die plate 201 is provided with a fourth female die 208, and the fourth female die 208 is in embedded fit with the fourth male die 111.

The fourth male die 111 and the fourth female die 208 are used for blanking and blanking the hole or the groove and other structures on the blanking member 300, and the fourth male die 111 is arranged behind the third male die 108 and continuously processes on the flattened semi-finished blanking member, so that the product quality is guaranteed, and the production efficiency is improved.

The implementation principle of the embodiment is as follows: when the punching die processes the blanking piece, the material belt sequentially passes through the positions of the first punch 102, the third punch 108, the fourth punch 111 and the second punch 103, and the first punch 102 and the first die 202 are clamped, so that the material belt is broken under the action of the first punch 102 and the first die 202 to form a semi-finished product blanking piece, and the semi-finished product blanking piece is not separated from the material belt directly; the third male die 108 and the embedded part 205 in the third female die 204 are clamped, so that the semi-finished blanking part and the material belt are kept on the same plane again, and the flatness requirement is ensured; the fourth male die 111 and the fourth female die 208 are matched, and blanking is carried out on structures such as holes or grooves on a semi-finished blanking piece; finally, the second male die 103 and the second female die 203 are clamped, and the second male die 103 punches a peripheral side area, so that the material belt on the peripheral side of the semi-finished punched part is forced to drop downwards, and the material belt can be removed from the material belt without downward movement of the semi-finished punched part, and the final punched part 300 is obtained.

Example two

The utility model also discloses stamping equipment, which comprises the stamping die.

The stamping die is used for stamping the material belt, so that the situation that burr areas appear on the outer profile section of the stamped part is reduced, and the quality of the stamped part is improved.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (10)

1. The utility model provides a stamping die, includes mould and bed die, its characterized in that: the upper die includes:

an upper die holder;

the first male die is connected with the upper die base and is in profiling with the outer contour of the blanking piece;

the second male die is connected with the upper die holder, the second male die is annular, and the outer ring end face of the second male die exceeds the outer contour face of the blanking piece;

wherein the blanking travel of the first male die is smaller than the thickness of the blanking member, and the second male die is used for blanking the outer side area of the blanking member;

the lower die includes:

the lower die plate is provided with a first female die and a second female die, and the first female die is in embedded fit with the first male die; the second female die is in embedded fit with the second male die.

2. The stamping die of claim 1, wherein: the upper die further comprises a spring and a stripper plate, two ends of the spring are respectively connected with the upper die base and the stripper plate, a plurality of abdication grooves are formed in the stripper plate, and the first male die and the second male die are arranged in the abdication grooves in a penetrating mode.

3. The stamping die of claim 2, wherein: the upper die further comprises a guide post and a guide sleeve, wherein the guide post is connected with the upper die holder, the guide sleeve is connected with the stripper plate, and the guide post is arranged in the guide sleeve in a penetrating manner and is in sliding connection.

4. The stamping die of claim 1, wherein:

the upper die further comprises a third male die, the third male die is connected with the upper die base, the third male die is arranged between the first male die and the second male die, and the end face of the third male die exceeds the outer contour face of the blanking piece;

the lower die plate is provided with a third female die, an embedded part is arranged in the third female die, and the end face of the embedded part exceeds the outer contour face of the blanking part.

5. The stamping die of claim 4, wherein: the lower die further comprises a lower die base and a lower die pad plate, wherein the lower die pad plate is connected between the lower die base and the lower die plate, and one end of the embedded part is propped against the lower die pad plate.

6. The stamping die of claim 1, wherein: the upper die further comprises an upper clamping plate, the upper clamping plate is connected with the upper die holder, and the first male die and the second male die are connected with the upper clamping plate.

7. The stamping die of claim 6, wherein: the upper die further comprises an upper base plate, the upper base plate is connected between the upper die base and the upper clamping plate, and one ends of the first male die and the second male die are pressed against the upper base plate.

8. The stamping die of claim 1, wherein: the inner ring of the second male die is contoured with the outer contour of the blanking member.

9. The stamping die of claim 4, wherein:

the upper die further comprises a fourth male die, the fourth male die is connected with the upper die holder, and the fourth male die is arranged between the third male die and the second male die;

the lower die plate is provided with a fourth female die which is in embedded fit with the fourth male die.

10. A stamping apparatus, characterized in that: comprising a stamping die according to any one of claims 1-9.