CN214919771U

CN214919771U - Die for stamping U-shaped opening by connecting insertion piece

Info

Publication number: CN214919771U
Application number: CN202023326498.0U
Authority: CN
Inventors: 孙亭亭; 衡思将
Original assignee: Xuzhou Yuntai Precision Technology Co ltd
Current assignee: Xuzhou Yuntai Precision Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-30
Anticipated expiration: 2030-12-31

Abstract

The utility model belongs to the technical field of stamping dies, in particular to a die for stamping U-shaped openings by inserting pieces, which comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base, an upper backing plate, a fixed plate, a backing plate and a stripper plate; the lower die sequentially comprises a lower die plate, a lower backing plate and a lower die base; in the complete die opening state, a movement stroke is reserved between the fixing plate and the base plate, a punch I and a punch II are fixed on the upper base plate and are symmetrically arranged on the upper base plate, and a punching block used for punching by the punch I and a punching block used for punching by the punch II are in completely consistent specific shape structures; the lower die plate is internally provided with an insert used for supporting a material belt, the insert is arranged on the material belt, and the material belt is positioned and guided through a hole in the middle between the upper die and the lower die. The stamping die can stably solve the size problem of the U-shaped opening of the inserting sheet, and is long in service life and high in efficiency.

Description

Die for stamping U-shaped opening by connecting insertion piece

Technical Field

The utility model belongs to the technical field of stamping die, concretely relates to be used for connecing inserted sheet punching press U-shaped open-ended mould.

Background

The U-shaped opening of the inserting sheet in the stamping die industry is of a structure with a smaller size, and various problems occur in the production process: a. the closing height of the die is not adjusted in place, so that a punch is not driven in place, and the size of an opening is out of tolerance; b. the actual height of the punch head is different from the theoretical height of the punch head designed by the die, so that the dimension of the U-shaped opening is out of tolerance; c. when the die is designed, a punch with smaller width is used for blanking, the punch is very weak, and deformation, fracture, non-perpendicularity and the like occur during linear cutting processing. Because the existence of above-mentioned difficulty leads to the U-shaped opening of current stamping die trade to connect the inserted sheet to accomplish the structure of less size: the punch is weak, the service life is short, and the cost is high.

Disclosure of Invention

In order to overcome the shortcoming of the prior art, the utility model provides a be used for connecing inserted sheet punching press U-shaped open-ended mould, according to metal material's plastic deformation principle, extrude certain degree of depth with the material of drift punching press mode both sides, the automatic shrink of U-shaped opening directly becomes the structure of less size.

The utility model discloses a realize through following technical scheme: a die for stamping a U-shaped opening by an inserting sheet comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base, an upper base plate, a fixed plate, a base plate and a stripper plate; the lower die sequentially comprises a lower die plate, a lower backing plate and a lower die base; in the complete die opening state, a movement stroke is reserved between the fixing plate and the base plate, a punch I and a punch II are fixed on the upper base plate and are symmetrically arranged on the upper base plate, and a punching block used for punching by the punch I and a punching block used for punching by the punch II are in completely consistent specific shape structures; the lower die plate is internally provided with an insert used for supporting a material belt, the insert is arranged on the material belt, and the material belt is positioned and guided through a hole in the middle between the upper die and the lower die.

Further, drift I passes through bolt I and upper padding plate bolted connection, drift II passes through bolt II and upper padding plate bolted connection.

Further, the upper die base, the upper backing plate and the fixed plate are connected into a whole through bolts, and the backing plate and the stripper plate are connected into a whole through bolts.

The utility model has the advantages that: according to the plastic deformation principle of metal materials, materials on two sides are extruded to a certain depth in a punch mode, so that the U-shaped opening is automatically contracted to a size meeting the requirement; the stamping die can stably solve the size problem of the U-shaped opening of the inserting sheet, and is long in service life and high in efficiency.

Drawings

Fig. 1 is a schematic structural view of the mold of the present invention when not closed;

fig. 2 is a schematic structural view of the mold of the present invention when closed;

FIG. 3 is a schematic view of the patch sheet on the tape;

in the figure, the die comprises an upper die base 1, an upper padding plate 2, a fixing plate 3, a fixing plate 4, a padding plate 5, a stripper plate 6, a lower die plate 7, a lower padding plate 8, a lower die base 9, a material belt 10, a punch I, a punch 11, a punch II, a punch 12, a bolt I, a bolt 13, a bolt II, a bolt 14, an insert, a hole 15 and a hole.

Detailed Description

The invention will be further explained below with reference to the drawings and examples.

As shown in fig. 1 to 3, a die for connecting an inserting sheet to punch a U-shaped opening comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base 1, an upper padding plate 2, a fixed plate 3, a padding plate 4 and a stripping plate 5, the upper die base 1, the upper padding plate 2 and the fixed plate 3 are connected into a whole through bolts, and the padding plate 4 and the stripping plate 5 are connected into a whole through bolts. The lower die sequentially comprises a lower die plate 6, a lower backing plate 7 and a lower die base 8; under the complete die sinking state, it has the motion stroke to reserve between fixed plate 3 and backing plate 4, be fixed with drift I10 and drift II 11 on the upper padding plate 2, drift I10 is through bolt I12 and upper padding plate 2 bolted connection, drift II 11 is through bolt II 13 and upper padding plate 2 bolted connection. The punch I10 and the punch II 11 are symmetrically arranged on the upper backing plate 2, and a punch block used for punching by the punch I10 and a punch block used for punching by the punch II 11 are in completely consistent specific shape structures; be equipped with the mold insert 14 that is used for supporting material area 9 in the lower bolster 6, connect the plug-in piece to arrange in material area 9, the material area 9 is just led through the hole 15 location in the intermediate position between last mould and lower mould, and during the first use, just lead with hole 15 and lower mould location through manual, later just carry out batch operation by feeding mechanism drive material area. When the stamping die works, an upper die (an upper die base 1, an upper padding plate 2, a fixing plate 3, a padding plate 4 and a stripper plate 5) slowly moves downwards, when the padding plate 4, the stripper plate 5 and a lower die are closed, a punch I10 and a punch II 11 are slowly pressed downwards through a punch press, the punch I10 and the punch II 11 are punched on the surface of a material belt 9, the lower surface of the material belt 9 is supported by an insert 14, and the insert 14 is fixed on a lower padding plate 7. As shown in figure 3, the shaded area is the impact point of the punch I10 and the punch II 11, the punch I10 and the punch II 11 are driven into the surface of the material 9 to a specific depth, the U-shaped opening of the tab is pressed to a certain depth from the state A to the state B before punching according to the plastic deformation principle of the metal material by using the punch punching mode, and the U-shaped opening is automatically contracted to be directly changed into a structure with a smaller size.

If the condition that B is smaller in size is out of tolerance in the mass production process, the heights of the punch I10 and the punch II 11 can be adjusted, namely the depth of the punch I and the punch II into the material belt 9 is controlled, and the smaller size of B is further ensured. Generally, the heights of the punch I10 and the punch II 11 are adjusted according to the required size of the U-shaped opening of the inserting piece, namely, the situation that the punch I10 and the punch II 11 are larger than the required size generally only occurs in the punching process, and if the punch I10 and the punch II 11 are smaller than the required size, the adjustment can be carried out by adjusting the heights of the punch I10 and the punch II 11.

And when B is changed in size and a die technician opens the upper die on the punch press, the punch I10 and the punch II 11 can be detached by rotating the bolt I12 and the bolt II 13 with a wrench, the punch is adjusted in a specific mode (namely, the side, close to the lower die, of the punch is far away from the upper backing plate), and the punch is installed on the upper die again for debugging so as to ensure that the size of the U-shaped opening is within the tolerance.

Claims

1. The utility model provides a be used for connecing inserted sheet punching press U-shaped open-ended mould which characterized in that: the die comprises an upper die and a lower die, wherein the upper die sequentially comprises an upper die base (1), an upper backing plate (2), a fixed plate (3), a backing plate (4) and a stripper plate (5); the lower die sequentially comprises a lower die plate (6), a lower backing plate (7) and a lower die base (8); in a complete die opening state, a movement stroke is reserved between a fixing plate (3) and a base plate (4), a punch I (10) and a punch II (11) are fixed on an upper base plate (2), the punch I (10) and the punch II (11) are symmetrically arranged on the upper base plate (2), and a punch block used for punching by the punch I (10) and a punch block used for punching by the punch II (11) are in completely consistent shape structures; and an insert (14) for supporting the material belt (9) is arranged in the lower template (6), the insert is arranged on the material belt (9), and the material belt (9) is positioned and guided through a hole (15) in the middle between the upper die and the lower die.

2. The die for punching the U-shaped opening by the tab according to claim 1, wherein: the punch I (10) is connected with the upper backing plate (2) through a bolt I (12) in a bolted mode, and the punch II (11) is connected with the upper backing plate (2) through a bolt II (13) in a bolted mode.

3. The die for punching the U-shaped opening by the tab according to claim 1, wherein: the upper die holder (1), the upper backing plate (2) and the fixed plate (3) are connected into a whole through bolts, and the backing plate (4) and the stripper plate (5) are connected into a whole through bolts.

4. The die for punching the U-shaped opening by the tab according to claim 1, wherein: the punch I (10) and the punch II (11) impact the material belt (9) through downward movement, so that the size change of the head end B of the material belt (9) meets the size requirement.