CN-224222484-U - Slitting and flanging composite die structure suitable for automobile sheet parts

CN224222484UCN 224222484 UCN224222484 UCN 224222484UCN-224222484-U

Abstract

The utility model discloses a slitting and flanging composite die structure suitable for automobile sheet parts, which comprises a lower die assembly, an upper die assembly, a lower die assembly and a lower die assembly, wherein the lower die assembly comprises a lower die base, a lower die cutter block fixed on the lower die base and a support device elastically connected with the lower die base, the upper end faces of the lower die base, the lower die cutter block and the support device are flush to form a part placing face, the upper die assembly comprises an upper die base, a first press elastically connected with the upper die base and an upper die cutter block detachably connected with the upper die base, the first press is used for pressing the front section of an automobile part, and a slitting cutting edge and a flanging face corresponding to a flanging opening of the support device are formed on the lower end face of the upper die cutter block.

Inventors

LIAO ZHONGCHUAN
SHI YUNDONG
CHEN HONGYAN
YE WENZHONG

Assignees

厦门金龙汽车智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (7)

1. The utility model provides a cut and turn-ups compound die structure suitable for automobile sheet part which characterized in that includes: The upper die assembly comprises an upper die base, a first presser elastically connected with the upper die base and an upper die cutter block detachably connected with the upper die base, wherein the first presser is used for pressing the front section of the automobile part; The lower end face of the upper die cutter block is provided with a cutting edge and a flanging face which correspond to the flanging opening of the workpiece supporting device, wherein the cutting edge is convexly arranged towards the direction of the part placing face; The upper end face of the lower die cutter block is provided with a shearing cutting edge which is used for forming shearing fit with the cutting edge, and the shearing cutting edge is positioned at the adjacent side of the flanging opening and corresponds to the flanging opening to form a forming space for accommodating flanging deformation of the part; When the upper die assembly descends, the pre-pressing device presses the front section of the part, the flanging surface of the upper die cutter block presses the part to finish flanging, and the cutting edge and the shearing edge are in shearing fit to divide the part into the front section and the rear section.
2. The composite die structure for slitting and flanging automobile sheet parts as claimed in claim 1, wherein the workpiece supporting device is elastically connected with the lower die holder through a first guide post and a first spring, and the axis of the first guide post is perpendicular to the part placing surface.
3. The composite die structure for slitting and flanging automobile sheet parts as claimed in claim 2, wherein the pre-pressing device is elastically connected with the upper die holder through a second guide post and a second spring, the axis of the second guide post is perpendicular to the part placing surface, and the compression stroke of the second spring is larger than that of the first spring.
4. A composite cut and flange mold structure for automotive sheet parts as set forth in claim 3 wherein both the first and second springs are configured as nitrogen springs.
5. The composite die structure for slitting and flanging automobile sheet parts as claimed in claim 1, wherein the upper die blade block comprises a base and a blade block, the blade block is formed below the base, and the slitting cutting edge and the flanging surface are formed on the blade block.
6. The composite die structure for slitting and flanging automobile sheet parts according to claim 5, wherein the upper die cutter block is L-shaped, the base is configured as a horizontal section, the blade block is configured as a vertical section, the horizontal section is used for being attached to an upper die holder, and the vertical section is formed with the slitting cutting edge and the flanging surface.
7. A composite die structure for slitting and flanging automobile sheet parts as defined in claim 1, The automatic feeding device is characterized by further comprising two groups of material supporting frames used for supporting two side ends of the part respectively, wherein the two groups of material supporting frames are symmetrically arranged at two side ends of the lower die base respectively, and material supporting surfaces on the two groups of material supporting frames are flush with the part placing surface.

Description

Slitting and flanging composite die structure suitable for automobile sheet parts Technical Field The utility model relates to the technical field of automobile die manufacturing, in particular to a slitting and flanging composite die structure suitable for automobile sheet parts. Background In the manufacturing process of automobile sheet parts, the slitting and flanging of the sheet parts are key procedures in the stamping process, and directly affect the assembly accuracy of the automobile body and the appearance of the product. The traditional processing mode generally adopts a process route of independent separation processing of a slitting die and a flanging die, the current improvement of the die is focused on single-procedure optimization (such as service life improvement and flanging angle control) and the problems that the die is overlooked are that firstly, the separated die processing procedure is too dependent on manual transportation and cannot be adapted to an automatic production line, productivity improvement is restricted, the efficiency is low, secondly, a certain quality hidden trouble exists, flanging dimensional deviation is often caused by repeated positioning of a part product on the die, assembly precision is affected, the occurrence of positioning errors also easily causes wrinkling of the part, the appearance of the product is seriously damaged, the later repair cost is increased, thirdly, the cost is high, multiple-user multiple-set die operation is needed, the equipment and maintenance cost is high, and the labor cost is increased. In view of the above-mentioned deficiencies in the prior art, there is a need for further optimization and improvement of existing mold structures. Disclosure of utility model The utility model provides a cutting and flanging composite die structure suitable for automobile sheet parts, which has the advantages of simple structure, easy realization and low cost, can synchronously complete cutting and flanging of the automobile sheet parts in one set of die, and solves the problems of low operation efficiency and hidden danger in production quality caused by the adoption of a multi-die operation processing mode for the existing automobile sheet parts, and the utility model mainly adopts the following technical scheme: The cutting and flanging composite die structure suitable for the automobile sheet parts comprises a lower die assembly, an upper die assembly, a lower die assembly and a detachable upper die assembly, wherein the lower die assembly comprises a lower die base, a lower die cutter block fixed on the lower die base and a workpiece supporting device elastically connected to the lower die base, the upper end faces of the lower die base, the lower die cutter block and the workpiece supporting device are flush with each other to form a part placing face, the upper die assembly comprises an upper die base, a pre-pressing device elastically connected to the upper die base and an upper die cutter block detachably connected to the upper die base, the pre-pressing device is used for pressing the front section of the automobile parts, a cutting edge and a flanging face corresponding to a flanging opening of the workpiece supporting device are formed on the lower end face of the upper die cutter block, the cutting edge is convexly arranged towards the direction of the part placing face, the flanging face is an arc-shaped face continuously transiting with the cutting edge, the upper end face of the lower die cutter block is provided with a shearing edge used for forming shearing fit with the cutting edge, the shearing edge is located on the adjacent side of the flanging opening and corresponds to the upper die cutter block, the forming a forming space for accommodating flanging deformation, the shearing edge is located between the cutting edge and the upper die cutter block and the flanging, the cutting edge is located between the lower die block and the upper die block and the flanging face and the part supporting device, and the cutting edge is pressed to the front and the part when the cutting edge and the part is pressed and the front cut and the part is pressed. Preferably, the carrier is elastically connected with the lower die holder through a first guide post and a first spring, and the axis of the first guide post is perpendicular to the part placing surface. Preferably, the pre-pressing device is elastically connected with the upper die holder through a second guide post and a second spring, the axis of the second guide post is perpendicular to the part placing surface, and the compression stroke of the second spring is larger than that of the first spring. Preferably, both the first spring and the second spring are configured as nitrogen springs. Preferably, the upper die cutter block comprises a base and an edge block, wherein the edge block is formed below the base, and the cutting edge and the flanging surface are formed on the edge block.