Drawing Die and Double Action Press

Abstract

The invention discloses a drawing die, and relates to the field of machining. The drawing die comprises a male die, an edge pressing ring, a female die and a pressing assembly. According to the drawing die, the pressing assembly is arranged on the overlapped part between the edge pressing ring and the male die, before the male die is in contact with a blank, the pressing assembly is pressed tightly, the pressure of the pressing assembly is transmitted to the pressing surface of the female die through the edge pressing ring, and in the whole male die forming process, the pressing assembly is kept in a pressed state all the time, the edge pressing force can be provided, so that the blank feeding is controlled to be uniform, and the wrinkling defect is avoided; and meanwhile, due to the factthat the pressing assembly is arranged on the overlapped part between the edge pressing ring and the male die, when the male die and the female die are closed, the distance between the male die and the edge pressing ring is reduced, the pressing assembly is triggered to be pressed tightly, the edge pressing force is provided, and when the male die and the female die are separated, the distance between the male die and the edge pressing ring is increased, the pressing assembly is loosened, the edge pressing force is removed, debugging is not needed, and the production efficiency is improved.

Description

technical field

[0001] The invention relates to the field of mechanical processing, in particular to a drawing die and a double-action press. Background technique

[0002] The press is a common cold stamping equipment used as a working platform for cold stamping dies. The plate-shaped blank is drawn by the drawing die on the press, and can become a workpiece with a three-dimensional structure. In actual production, workshops often have two types of presses: single-action presses and double-action presses. In order to balance the production capacity of the workshop, it is necessary to consider the switching problem of the same set of drawing dies between single-action presses and double-action presses.

[0003] At present, the drawing die that can be used normally on a single-action press will have insufficient blank-holding force after being replaced with a double-action press, resulting in uneven feeding of the blank, resulting in wrinkling. In the prior art, the drawing ...

Examples

Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] figure 1 It is a structural schematic diagram of a drawing die in a forming state in the related art. Such as figure 1 As shown, the drawing die includes: a punch 100 , a blank holder 200 and a die 300 . The male mold 100 has a molding surface 100a, the female mold 300 has a molding surface 300a, and the molding surface 100a and the molding surface 300a match each other. The binder ring 200 has a binder surface A, and the die 300 has a binder surface B matching the binder surface A. The binder surface B of the die 300 is located around the forming surface 300 a of the die 300 , and the binder surface A of the blank holder 200 is located around the forming surface 100 a of the punch 100 .

[0037] When in use, the punch 100 i...

technical field

[0001] The invention relates to the field of mechanical processing, in particular to a drawing die and a double-action press. Background technique

[0002] The press is a common cold stamping equipment used as a working platform for cold stamping dies. The plate-shaped blank is drawn by the drawing die on the press, and can become a workpiece with a three-dimensional structure. In actual production, workshops often have two types of presses: single-action presses and double-action presses. In order to balance the production capacity of the workshop, it is necessary to consider the switching problem of the same set of drawing dies between single-action presses and double-action presses.

[0003] At present, the drawing die that can be used normally on a single-action press will have insufficient blank-holding force after being replaced with a double-action press, resulting in uneven feeding of the blank, resulting in wrinkling. In the prior art, the drawing ...

Examples

Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] figure 1 It is a structural schematic diagram of a drawing die in a forming state in the related art. Such as figure 1 As shown, the drawing die includes: a punch 100 , a blank holder 200 and a die 300 . The male mold 100 has a molding surface 100a, the female mold 300 has a molding surface 300a, and the molding surface 100a and the molding surface 300a match each other. The binder ring 200 has a binder surface A, and the die 300 has a binder surface B matching the binder surface A. The binder surface B of the die 300 is located around the forming surface 300 a of the die 300 , and the binder surface A of the blank holder 200 is located around the forming surface 100 a of the punch 100 .

[0037] When in use, the punch 100 i...

Images