Die for lateral hole flanging of upper cross plate of automobile seat backrest

Abstract

The invention discloses a die for lateral hole flanging of an upper cross plate of an automobile seat bracket. The die comprises a lower die base arranged on a working table, wherein a first punch is arranged on the lower die base; a first concave die and a second concave die are sequentially and correspondingly arranged on the working table and one the same side of the first punch; a cavity of the first concave die and a cavity of the second die right face the first punch; a lower cavity is arranged between the first concave die and the second concave die; a punch guide through hole is formed in the upper part of the lower cavity; a second punch penetrates through the punch guide through hole and right faces the first punch; and orientations of the second punch and the first punch are consistent. The die has the remarkable effects as follows: the two punches are used for punching, so that the stroke of a single punch is reduced, the punch stability is improved, hole flanging concentricity is high, the punch quality is stable, and the qualified rate of a product is high; and besides, a punch return device is arranged ingeniously, and the structure is compact.

Description

technical field [0001] The invention relates to the field of stamping dies for automobiles, in particular to a die used for turning over holes in a horizontal plate on the back of an automobile seat. Background technique [0002] The top of the backrest of the car seat is provided with a headrest, the headrest is provided with a headrest rod, the top of the backrest of the car seat is provided with a headrest conduit, and the headrest rod is inserted into the headrest conduit to connect the headrest to the car seat. The top of the backrest is attached. There are two conduit insertion holes on the upper horizontal plate of the backrest of the car, and the same headrest conduit is inserted into the two corresponding conduit insertion holes; stamping is an important way to form the conduit insertion holes; In order to ensure the smooth insertion of the headrest conduit into the conduit insertion hole, the two corresponding conduit insertion holes should have good concentricity...

AI Technical Summary

Problems solved by technology

There are two conduit insertion holes on the upper horizontal plate of the backrest of the car, and the same headrest conduit is inserted into the two corresponding conduit insertion holes; stamping is an important way to form the conduit insertion holes; In order to ensure the smooth insertion of the headrest conduit into the conduit insertion hole, the two corresponding conduit insertion holes should have good concentricity and turn the holes to the same side; The mold uses a punch to stamp the two facing flanges of the upper horizontal plate in turn to form concentric turning holes. The stroke of this kind of turning punching die is long, the stability is not good, and the quality of the stamped products is not high.

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