CN-122007246-A - Air-cutting structure and die comprising same

CN122007246ACN 122007246 ACN122007246 ACN 122007246ACN-122007246-A

Abstract

The invention provides a blank cutting structure and a die comprising the same, wherein the blank cutting structure comprises blank cutting material pressing ribs and blank cutting trimming cutters, the blank cutting trimming cutters are arranged on trimming die inserts of an upper die of the die, the blank cutting material pressing ribs are arranged on the blank cutting trimming cutters, the outer edges of the blank cutting material pressing ribs protrude out of the outer edge surfaces of the blank cutting trimming cutters, and when the die is closed, the blank cutting material pressing ribs are used for pressing materials, and the blank cutting trimming cutters are used for trimming. When the die is closed, the hollow material pressing rib is arranged on the hollow trimming cutter, and the outer edge of the hollow material pressing rib protrudes out of the outer edge surface of the hollow trimming cutter, so that a material pressing core is omitted, and the hollow material pressing rib is directly used for pressing materials, so that the hollow material pressing rib can be used for trimming by the hollow trimming cutter while pressing materials, and when the die returns, the hollow material pressing rib also returns along with the returning moment of the hollow trimming cutter, and the waste removing function is instantly completed, so that the production defect of clamping waste of the die can be effectively avoided.

Inventors

ZHU MEIYUN
ZHOU GAOZHEN
LI GUANGHUI
ZHU YONGCHUAN
PEI TINGTING
CHEN SHITAO
HUAI ZILI
ZHU HUI

Assignees

安徽江淮汽车集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260327

Claims (8)

1. The hollow cutting structure is characterized by comprising a hollow cutting material pressing rib and a hollow cutting trimming cutter, wherein the hollow cutting trimming cutter is arranged on a trimming concave die insert of an upper die of the die, the hollow cutting material pressing rib is arranged on the hollow cutting trimming cutter, the outer edge of the hollow cutting material pressing rib protrudes out of the outer edge surface of the hollow cutting trimming cutter, and when the die is closed, the hollow cutting material pressing rib is used for pressing materials, and the hollow cutting trimming cutter is used for trimming.
2. The air-cutting structure according to claim 1, wherein the air-cutting rib is provided at a middle position of an outer edge surface of the air-cutting trimming blade.
3. The void-cutting structure of claim 1, wherein the void-cutting swaged bead is embedded on the void-cutting trim knife.
4. The void-cutting structure of claim 1, wherein the void-cutting swage bead has the same shape as the void-cutting trim knife.
5. The blank cutting structure according to claim 1, wherein the blank cutting trimming knives are oppositely arranged on the left side and the right side of the trimming die insert, and the blank cutting pressing ribs are arranged on the outer edge surfaces of the two blank cutting trimming knives.
6. A mould comprising a void-cut structure as claimed in any one of claims 1 to 5.
7. The die of claim 6, comprising two trim die inserts, both of said trim die inserts having said relief structure disposed thereon.
8. The die of claim 7, wherein two hollow trimming knives are oppositely arranged on each trimming die insert in a left-right direction, and the hollow pressing ribs are arranged on the outer edge surface of each hollow trimming knife.

Description

Air-cutting structure and die comprising same Technical Field The invention belongs to the technical field of vehicle part manufacturing, and particularly relates to a hollow cutting structure and a die comprising the hollow cutting structure. Background The trimming and punching of the inner and outer plate stamping parts of the automobile after being pulled is realized by a trimming and punching die, the trimming and punching die is realized on a press, and the pressing and ejection are an important function of the trimming and punching die. The traditional material pressing mode adopts the material pressing core to press the material, but the structure easily makes the material pressing core after trimming is finished take off the material unsmoothly, causes card waste material, leads to the production defect that the waste material can not be discharged. Therefore, how to design a hollow cutting structure and a die to better avoid the production defect of the die that the card waste occurs becomes the technical problem that the skilled person needs to solve. Disclosure of Invention The invention aims to provide a hollow cutting structure and a die, which are used for solving the technical problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: the hollow cutting structure comprises a hollow cutting material pressing rib and a hollow cutting trimming cutter, wherein the hollow cutting trimming cutter is arranged on a trimming concave die insert of an upper die of the die, the hollow cutting material pressing rib is arranged on the hollow cutting trimming cutter, the outer edge of the hollow cutting material pressing rib protrudes out of the outer edge surface of the hollow cutting trimming cutter, when the die is closed, the hollow cutting material pressing rib is used for pressing materials, and the hollow cutting trimming cutter is used for trimming. Preferably, the hollow cutting pressing rib is arranged at the middle position of the outer edge surface of the hollow cutting trimming knife. Preferably, the hollow cutting material pressing rib is embedded on the hollow cutting trimming knife. Preferably, the shape of the blank pressing rib is the same as that of the blank trimming knife. Preferably, the left side and the right side of the trimming die insert are oppositely provided with the empty cutting trimming knives, and the outer edge surfaces of the two empty cutting trimming knives are respectively provided with the empty cutting material pressing ribs. A mould comprising a void cutting structure as defined in any one of the preceding claims. Preferably, the trimming die comprises two trimming die inserts, and the hollow cutting structure is arranged on each trimming die insert. Preferably, each trimming die insert is provided with two hollow trimming knives in a left-right opposite manner, and the outer edge surface of each hollow trimming knife is provided with a hollow pressing rib. The invention has the beneficial effects that: According to the blank structure and the die comprising the blank structure, when the die is closed, as the blank pressing rib is arranged on the blank trimming cutter, and the outer edge of the blank pressing rib protrudes out of the outer edge surface of the blank trimming cutter, a pressing core in the prior art can be omitted, the blank pressing rib protruding out of the outer edge surface of the blank trimming cutter is directly utilized for pressing, so that the blank pressing rib can be utilized for trimming while pressing, and when the die returns, the blank pressing rib also returns along with the returning moment of the blank trimming cutter, the waste removing function is instantaneously completed, and the production defect of clamping waste of the die can be effectively avoided. Drawings For a clearer description of embodiments of the present application or of the prior art, reference will be made briefly to the accompanying drawings, which are required to be used in the embodiments, and to further detail of specific embodiments of the present application, taken in conjunction with the accompanying drawings, wherein FIG. 1 is a schematic view of a hollow cut structure according to an embodiment of the present invention; fig. 2 is a schematic diagram of a mold according to an embodiment of the present invention. The reference numerals in the drawings: 11. Trimming die insert, 12, upper die of die, 21, empty cutting trimming knife; 31. and (5) cutting the material pressing ribs. Detailed Description Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. The following de