SU449757A1 - Stamp for punching holes in hollow parts - Google Patents

Description

one

1-1 the acquisition relates to the tooling for cold sheet punching and can be used in the field of radio engineering and electronics.

A well-known stamp for punching holes in these parts, comprising a carrier, a holder and a puller installed inside the product, as well as a matrix installed on the outside of the products.

To obtain holes in work places and an iodine angle to the product axis, as well as simplify the co-operation, the holder of the stamp is rigidly connected to the fixed plate, the matrix is fixed on the base plate and removed from the holder under the action of the upper plate.

In the drawing, the image described stamp.

The stamp consists of the top of a sliding plate 1, the matrix of which is fixed 2 and a pusher 3 with a lock nut 4. On the lower fixed plate 5 with viits 6 there is a holder 7, in which holder 8 and the puller 9 are molded 10 and 10. pin 11 secured the punch 12, which enters the hole of the puller 9 and at the base of the spring, a spring 13, which is adjusted by the viit 14.

There is an adjustable gap between the removal and the pusher 3.

Shtami works as follows. The hollow part 10 is put on the puller 9

and holder 8. When the upper plate 1 moves downward, the matrix 2 contacts the part and presses it to form a technical hole in accordance with the profile of the puller 9. With further movement, the pusher 3 immediately davts the puller 9 and brings it in motion with the hollow part 10 The part 10 moves towards the moving punch 12, as a result of which a hole is punched into the part with the exit

waste to the outside.

At the end of the punching cycle, the holes of the top nlita 1 return to their original position and the pusher 3, together with the die 2, releases the puller 9. Under

by the action of the spring 13, the puller returns to its original position, after which the part 10 of the tashm is removed.

The subject is invented and

25

Strain for punching holes in the piercing parts, containing iodvig and ipodviziu plates, located inside the workpiece, the holder carrying the punch and puller, and outside the matrix that differs 30

so that, in order to obtain holes in hard-to-reach places and at an angle to the axis of the part, as well as to simplify the stamp, the holder is rigidly connected to the fixed plnton,

the matrix is fixed on the slide plate, and the puller is made movable relative to the holder under the action of the upper plates.