SU1655635A1 - Device for feeding blanks to working zone of stamp - Google Patents

Abstract

The invention relates to the processing of metals by pressure. The purpose of the invention is to ensure the possibility of using a stamp of a consistent action in a B5 UE. The device contains a movable rail (PR) 1 with protrusions (B) 2 t locking paws (C) 5, guide bars for workpieces and a pressure bar For the working movement of PR 1 serves a wedge 6, and for returning the spring C 5 is set to axles 8 and spring 9. During the working stroke, PR 1 moves and B 2 moves the workpiece to the working position. The workpiece is pressed against the guide bars and to B 2 by the clamping bar and fixed to the working position. During the reverse stroke, B 2 passes under the blanks. The latter are lifted and held back by C 5. 1 Cp. f-ly, 3IL A-A 7 SL

Description

fig 2

The invention relates to the processing of metals by pressure, in particular to the tooling for feeding blanks.

The purpose of the invention is to ensure that a consistent action can be used in a stamp.

FIG. 1 shows a device for feeding the workpieces, installed, in particular, in the lower part of the sequential punch, (plan view); FIG. 2 is a section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The device contains movable strips 1 with pushing elements 2 and guiding strips 3 mounted on the bottom plate 4 of the stamp.

Each bar 1 is a toothed rack and locking dogs 5. A wedge 6 is provided for working movement of bar 1 and a spring 7 is provided for returning. Elements 2 form rows, dogs 5 also form row.

In each row, the elements 2 and the dogs 5 are located at a distance equal to the pitch between the positions of the stamp. Dogs 5 have the ability to rotate around the axes 8 and are equipped with springs 9. To clamp the blanks to the guide bars 3 there is a bar 10, spring-loaded to the plate 4 by the spring 11 and mounted on the bracket 12. On the bottom plate 4 there are dies 13, and on the top plate 14 - accordingly punches 15.

The workpiece is indicated by the position 16.

The device in the composition of the stamp works as follows.

The workpiece 16 (rod) is laid to its original position. At the working stroke of the plate 14, the wedge 6 moves the strips 1, and with its lugs 2 moves the workpiece

16 to the first job position. The blank 16 is pressed against the guide bars 3 and the protrusions 2 by the bar 10, which ensures accurate fixation. Processing occurs.

During the reverse course, the lath 1 is returned by the spring 7, the protrusions 2 lift the workpieces 16 and pass under them, and the workpieces 16 at this moment are locked by the dogs 5.

A new preform is placed in its original position and the cycle is repeated.

The implementation of the invention will ensure accurate fixation of the workpieces at several positions.

Claims (2)

1. A device for supplying piece blanks to a punch working area containing a movable bar with pushing elements installed in the lower part thereof, a bar for guiding the blanks and locking paws mounted in one row with the possibility of protruding over the bar for guiding, as well as means for returning -available movement of the movable bar, characterized in that, in order to ensure the possibility of using a sequential action in the stamp, the pushing elements are made in the form of teeth and are rigidly connected between an assembly th strip forming together with these elements, a rack, each tooth tip of the rack and the working end of each of the retaining pawl are turned to the upper die, and the device is provided with a clamp for workpieces in the form of strips, a spring-loaded guide plate. 2. The device according to claim 1, characterized in that it is provided with an additional movable bar, additional locking dogs and an additional guide bar, arranged symmetrically with the billets present relative to the feed axis. Xj /. N K ( U 3 ft / K Ш2С