SU1215806A1 - Arrangement for stamping from piece blanks - Google Patents

Description

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The invention relates to the processing of metals by pressure and can be used in forging and pressing production of any branch of mechanical engineering and instrument-making, in particular, in the watch industry on presses when processing watch cases.

The purpose of the invention is to increase the efficiency of automation of stamping operations in small-scale production while simplifying the Design by separating the drive-feeder system.

Figure 1 shows the proposed device, a view in plan; FIG. 2 is a section A-A in FIG. I; figure 3 - section bb in fig 1.

In the proposed device for stamped as a stamping unit, an insert with two symmetrical column directions located along the stamp axis is used.

The disk 1 of the turret feeder is mounted on the guide column 2, fixed to the lower plate of the die. The workpieces 3 being processed are placed in the through windows 4 of the disk 1, where they are kept from falling out by a fixed plate. 5, {Located under the disk 1. The top plane of the plate 5 is at the level of the matrix 6 matrix. On the disk 1 of the feeder, according to the number of windows 4 (the slots for workpieces, there are stops 7 protruding on the surface of the disk, and bushings 8. On the second column 9 of the stamp is Bracket 10, on which axis 11 is mounted, is a spring-loaded lever J2, which interacts with stops 7, and the locking disk 1 of the rotary feeder 1.

In the upper movable part of the punch, a latch 14 is fixed on the plate 13, kinematically associated with the press shutdown mechanism (not repaired) if the latch 14 does not coincide with the hole 15 of the sleeve 8. As a mechanism, any safety device can be used, for example, instantly folding with a knee-lever system4:

The protruding part of the retainer 14 is larger than the protruding part of the punch 16 so that when the upper part of the die moves, the retainer 14 is ahead of the punch 16.

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On the press table, the pneumatic actuator 17 is hingedly mounted, the smooth rod-rod 18 of which is directed along. tangent to disk 1 and roller 19

5 - podzhat to the groove-20, made on the periphery of the disk 1. The roller 19 is installed on the axis 21 in the lever 22; which by means of a spring 23 / is deflected from the line of the centers of the roller and the feeder

10 at a certain angle o (. In view of this, when stem rod 18 moves in the direction of arrow S (Fig.). The force pressed against disk 1 increases, and when moving in the opposite direction, SRI (along arrow T) decreases.

The device works as follows.

Simultaneously with the movement of the top plate 13 stamp down manually or

20, with an automatic loading device (not shown), blanks are loaded into windows 4 located outside the die zone. After returning the top plate 13 of the stamp to its initial (top 25) position, the disk 1 of the feeder is turned one division. The rotation of the disk is carried out as follows. On the signal of the command device (not shown), the rod-rod 18 is pneumatic.

30 of the drive 17 moves in the direction of the SRI of the arrow S. Due to the fact that the rod 18 is pressed against the groove 20 of the disk 1 by the roller 19, the pressing force increases and the rod 18 rotates

35 disk 1 until the stop 7 slips under the spring-loaded lever 12. Thereafter, the movement of the rod-rod 18 is immediately reversed and it, slipping in the groove 20, presses the slipped stop 7 to the end of the lever 12, thus achieving fixation . Disk 1 revolver feeder on. Working position.

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After the disc 1 is fixed by the lever 12, the upper part of the stamp, together with the retainer 14 and the punch 16 mounted on the plate 13, starts to move downwards (the working stroke) by the action of a press (not shown). If the latch 14, ahead of the punch 16, enters the hole 15 of the sleeve 8, then the working stroke is completed and the technological operation will be performed. If for any reason the revolving disk 1 does not occupy an exact positional position above the working hole of the die, the latch 14 does not enter the hole 15 of the sleeve 8 and

rests on disc 1, the safety device operates and shuts off the press drive.

Upon completion of the technological operation, during the return stroke of the upper part of the stamp, 1 inertia 17 operates, with which the turret disk 1 is rotated to the next division.

When installing a stamp with an integrated revolving feeder, it is not required. To make an adjustment of the drive of the feeder mounted permanently on the press. It is enough to fix the stamp on the press table, 15806

to treat pressing the periphery of the disk 1. to the rod-rod 18 and turn on the drive of the feeder for one cycle. In this case, the disk 1 automatically rises in 5 the desired position after the interaction of upra 7 with the lever 12.

The proposed device with a considerable simplicity of constructive execution provides a quick replacement of the automated stamp when changing the press to another product, which, under conditions of small-scale production, allows to increase the cost-effectiveness of automation of the stamp work.

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Claims (1)

DEVICE FOR STAMPING OF PIECES OF PRODUCTS, comprising an upper plate with a punch, a lower plate with guide columns mounted on it, a turret disk with slots for blanks, rotatably mounted on one of the guide columns, a mechanism for periodically rotating a turret disk with a drive in the form, for example , a power cylinder with a rod and a mechanism for fixing the turret disk, characterized in that, in order to simplify the design, the mechanism of periodic rotation of the turret disk is made. th rod, installed with the possibility of tangential interaction with the peripheral surface of the turret disk and connected to the rod of the power cylinder and the pressure roller, spring-loaded towards the smooth rod, and the mechanism for fixing the turret disk is made in the form of a bracket with an axis mounted on the second guide column, one-arm lever and stops according to the number of slots for workpieces, while the stops are mounted on a turret disk, and the one-shoulder lever is on the axis of the bracket and is spring-loaded to the stops. 908eur ^ro Tis