CN216540433U

CN216540433U - Composite punching die

Info

Publication number: CN216540433U
Application number: CN202121614311.9U
Authority: CN
Inventors: 马会民; 陈汉杰; 郭好强; 吴佳帆
Original assignee: Henan Hongyuan Wheel Co Ltd
Current assignee: Henan Hongyuan Wheel Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-05-17
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a composite punching die which comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die plate, three punching upper cutters are detachably mounted at the bottom end of the upper die plate, and the three punching upper cutters are matched with holes to be punched on a workpiece; the lower die assembly comprises a lower die plate, three punching lower dies are detachably mounted on the top end of the lower die plate, the three punching lower dies are matched with the three punching upper dies, a material returning seat of a 7-shaped structure is detachably mounted at the punching lower dies on the lower die plate, a through hole in the material returning seat is matched with the size of the punching upper dies, and limiting plates mounted on the lower die plate are arranged at the punching lower dies located on the outermost sides in the three punching lower dies. A workpiece is placed on the lower template, one side of the workpiece is tightly attached to the material returning seat, one end of the workpiece is tightly propped against the limiting plate, one group of holes are machined through one-time punching, and machining efficiency is improved. The die structure is easy to return materials, three sets of punching dies are combined, the investment cost is low, the punching distance is ensured, and the punching quality is improved.

Description

Composite punching die

Technical Field

The utility model relates to the technical field of machining, in particular to a composite punching die.

Background

At present, a punching die is used for punching a single hole, and the punching die is used for completing processing by punching for multiple times. There are two methods for completing the punching, the first one is to use three sets of dies; and the second method is to utilize a set of punching die to punch three times, and then sequentially finish the processing of three through holes. The two methods have high input cost and low processing efficiency, and the punching distance is not easy to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model provides a composite punching die, and the existing punching die has the following problems of high input cost, low processing efficiency and difficulty in ensuring punching distance.

To solve the above technical problem, an embodiment of the present invention provides the following solutions:

the embodiment of the utility model provides a composite punching die, which comprises an upper die assembly and a lower die assembly;

the upper die assembly comprises an upper die plate, three punching upper knives are detachably mounted at the bottom end of the upper die plate, and the three punching upper knives are matched with the workpiece to be punched;

the lower die assembly comprises a lower die plate, three lower punching dies are detachably mounted at the top end of the lower die plate, the three lower punching dies are matched with the three upper punching knives, a material returning seat in a 7-shaped structure is detachably mounted at the lower punching dies on the lower die plate, a through hole in the material returning seat is positioned above a hole in the lower punching die seat, the through hole in the material returning seat is matched with the size of the upper punching knives, and a limiting plate mounted on the lower die plate is arranged at the lower punching die positioned at the outermost side in the three lower punching dies;

a guide post and guide sleeve is arranged between the upper template and the lower template;

preferably, the upper die assembly further comprises a connecting plate, the connecting plate is mounted at the bottom end of the upper die plate through screws and cylindrical pins, and the three punching upper knives are detachably mounted at the bottom end of the connecting plate.

Preferably, the lower die assembly further comprises a punching lower die base, the three punching lower die bases are detachably mounted at the top end of the lower die plate through a second positioning pin and a screw, and the punching lower die is embedded in the punching lower die base.

Preferably, the lower die assembly further comprises guide pillars, and two guide pillars are diagonally mounted at the top end of the lower die plate.

Preferably, the lower die assembly further comprises a first lower die base plate and a second lower die base plate, wherein the first lower die base plate is installed at two corners of one side of the bottom end of the lower die plate, and the second lower die base plate is installed at two corners of the other side of the bottom end of the lower die plate.

Preferably, the upper die assembly further comprises upper tool holders, the three upper tool holders are detachably mounted at the bottom end of the connecting plate through screws and positioning pins, and punching upper tools are mounted on the tool holders.

Preferably, the upper die assembly further comprises a die shank provided at a central position of the upper die plate and the connecting plate.

Preferably, the upper die assembly further comprises a guide sleeve, and two guide sleeves are diagonally arranged at the bottom end of the connecting plate.

Preferably, the limiting plate is detachably mounted on the lower template through a screw and is located at the outer side of the punching lower die located on the outermost side in the three punching lower dies.

Preferably, the material returning seat is detachably mounted at the top of the lower template through a screw, and the inner side of the material returning seat is tightly attached to the punching lower die seat.

The scheme of the utility model at least comprises the following beneficial effects:

according to the scheme, when the composite punching die is used, a workpiece is placed on the lower die plate, one side of the workpiece is tightly attached to the material returning seat, one end of the workpiece is tightly propped against the limiting plate, and one group of holes are punched at one time, so that the machining efficiency is improved; the die structure is easy to return materials, the three sets of punching dies are combined, the investment cost is low, the punching distance is ensured, the punching quality is improved, and the machining efficiency is high.

Drawings

FIG. 1 is a schematic view of a die-splitting structure of the composite punching die of the present invention;

FIG. 2 is a front view of the upper die assembly of the composite die of the present invention;

FIG. 3 is a bottom view of the upper die assembly of the composite die of the present invention;

FIG. 4 is a front view of the lower die assembly of the composite cutting die of the present invention;

FIG. 5 is a bottom view of the lower die assembly of the composite die of the present invention;

FIG. 6 is a front view of the stripper seat of the composite die of the present invention;

fig. 7 is a top view of the stripper seat of the composite die of the present invention.

Reference numerals:

1. a die shank; 2. mounting a template; 3. a second positioning pin; 4. a connecting plate; 5. punching and feeding; 6. a guide post; 7. an upper tool apron; 8. a guide sleeve; 9. a cylindrical pin; 10. a first positioning pin; 11. a lower die base plate I; 12. a second lower die base plate; 13. a lower template; 14. punching a lower die holder; 15. a material returning seat; 16. a limiting plate; 17. and (5) punching a lower die.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1, the present embodiment provides a composite blanking die including an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die plate 2, three punching upper knives 5 are detachably mounted at the bottom end of the upper die plate 2, the three punching upper knives 5 are matched with the workpiece to be punched, the space between the three punching upper knives 5 is matched with the hole pitch of the workpiece to be punched, and the punching upper knives 5 are matched with the size of the workpiece to be punched. The lower die assembly comprises a lower die plate 13, three lower punching dies 17 are detachably mounted at the top end of the lower die plate 13, the three lower punching dies 17 are matched with the three upper punching knives 5, material returning seats 15 in a 7-shaped structure are detachably mounted at the lower punching dies 17 on the lower die plate 13, through holes in the material returning seats 15 are located above holes in the lower punching die 17 seats 14, the through holes in the material returning seats 15 are matched with the upper punching knives 5 in size, the hole intervals of the three lower punching die 17 seats 14 are consistent with the intervals of the upper punching knives 5, the holes in the lower punching die 17 seats 14 are matched with the upper punching knives 5, and limiting plates 16 mounted on the lower die plate 13 are arranged at the lower punching dies 17 located on the outermost side in the three lower punching dies 17; a guide post 6 and a guide sleeve 8 are arranged between the upper template 2 and the lower template 13. In the use process of the composite punching die, a workpiece is placed on the lower die plate 13, one side of the workpiece is tightly attached to the material returning seat 15, one end of the workpiece is tightly propped against the limiting plate 16, one group of holes are punched at one time, and the machining efficiency is improved. The die structure of this embodiment is easily returned the material, and three sets of punching die combinations, the input cost is low, has guaranteed the interval of punching a hole, has improved the quality of punching a hole, and machining efficiency is high.

As shown in fig. 2 to 3, the upper die assembly of the present embodiment further includes a connecting plate 4, an upper tool post 7, and a die shank 1. The connecting plate 4 is arranged at the bottom end of the upper template 2 by screws and cylindrical pins 9, and the three punching upper cutters 5 are detachably arranged at the bottom end of the connecting plate 4. Specifically, three upper tool apron 7 are detachably mounted at the bottom end of the connecting plate 4 through screws and positioning pins I10, and the punching upper tool 5 is mounted on the tool apron. The die shank 1 is arranged at the central positions of the upper die plate 2 and the connecting plate 4, and the die shank 1 plays a role in positioning a die and is uniformly stressed when punching is carried out.

As shown in fig. 4 to 7, the lower die assembly of the present embodiment further includes a punching lower die 17 base 14, a lower die pad one 11, and a lower die pad two 12. Three lower mould 17 seats 14 that punch a hole pass through locating pin two 3 and screw demountable installation on the top of lower bolster 13, and the lower mould 17 that punches a hole is inlayed in lower mould 17 seats 14 that punch a hole, and material returned seat 15 passes through screw demountable installation at the top of lower bolster 13, and material returned seat 15's inboard pastes tight lower mould 17 seats 14 that punch a hole. Two corners of one side of the bottom end of the lower template 13 are provided with a lower die base plate I11, two corners of the other side of the bottom end of the lower template 13 are provided with a lower die base plate II 12, and the lower die base plate I11 and the lower die base plate II 12 are used for being connected with a workbench.

Specifically, the limit plate 16 is detachably mounted on the lower die plate 13 by a screw, and is located at an outer side of the outermost punching lower die 17 of the three punching lower dies 17.

As shown in fig. 1 to 5, the guide post and guide sleeve of the present embodiment includes a guide sleeve 8 and a guide post 6. The upper die assembly comprises a guide sleeve 8, and two guide sleeves 8 are diagonally arranged at the bottom end of the connecting plate 4. The lower die assembly comprises guide posts 6, and two guide posts 6 are diagonally arranged at the top end of the lower die plate 13.

The working process of the composite punching die is as follows:

and (3) placing the workpiece on the lower die base, wherein one side of the workpiece is tightly attached to the material returning base 15, one end of the workpiece is tightly pressed against the limiting plate 16, and one group of holes are punched at one time.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A composite punching die is characterized by comprising an upper die assembly and a lower die assembly;

and a guide post and guide sleeve is arranged between the upper template and the lower template.

2. The composite shear die of claim 1, wherein the upper die assembly further comprises a connecting plate mounted to the bottom end of the upper die plate by screws and cylindrical pins, and three punch upper blades are removably mounted to the bottom end of the connecting plate.

3. The composite punching die as claimed in claim 1, wherein the lower die assembly further comprises a punching lower die holder, the three punching lower die holders are detachably mounted at the top end of the lower die plate through a second positioning pin and a screw, and the punching lower die is embedded in the punching lower die holder.

4. The composite piercing die of claim 1, wherein the lower die assembly further includes a guide post, and two guide posts are diagonally mounted on the top end of the lower die plate.

5. The composite punching die according to claim 1, wherein the lower die assembly further comprises a first lower die base plate and a second lower die base plate, the first lower die base plate is mounted at two corners of one side of the bottom end of the lower die plate, and the second lower die base plate is mounted at two corners of the other side of the bottom end of the lower die plate.

6. The composite blanking die of claim 2, wherein the upper die assembly further comprises upper tool apron, three upper tool apron are detachably mounted at the bottom end of the connecting plate through a screw and a positioning pin, and a punching upper tool is mounted on the upper tool apron.

7. The composite piercing die of claim 2, wherein the upper die assembly further includes a die shank disposed centrally of the upper die plate and the web.

8. The composite blanking die of claim 2 wherein the upper die assembly further includes guide sleeves, two of which are diagonally mounted at the bottom end of the web.

9. The composite punching die according to claim 3, wherein the limiting plate is detachably mounted on the lower die plate through a screw and is located at the outer side of the lower punching die located at the outermost side of the three lower punching dies.

10. The composite punching die of claim 3, wherein the stripper seat is detachably mounted at the top of the lower die plate through a screw, and the inner side of the stripper seat is tightly attached to the punching lower die seat.