SU1479205A1 - Apparatus for making cup-shaped parts - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to devices for the manufacture of parts such as glasses, preferably with a protrusion on the inner bottom surface. The purpose of the invention is to improve the quality of the parts and expand the technological capabilities of the device. The device contains upper and lower plates, punches mounted on the upper plate, a matrix connected through pulling and driving, which is located on the upper plate, an annular inductor mounted on the upper surface of the matrix coaxially with the punch and connected through a controlled bit with a capacitive accumulator. During the direct course of the punch, the matrix moves towards it and is set in a predetermined position when it enters the stationary stage of the deformation process. The capacitive storage drives and the part of the workpiece is crimped. Upon completion of the deformation process, the die is lowered, and the resulting part is removed. 1 il.

Description

one

The invention relates to the processing of metals by pressure, in particular to the construction of devices for the manufacture of parts such as glasses, preferably with an internal protrusion.

The purpose of the invention is to improve the quality of the parts produced and the expansion of technological capabilities.

The drawing shows a diagram of the device for the manufacture of parts.

The device contains an upper llita 1, a lower plate 2 with a protrusion 3 for placing the workpiece, a punch 4 fixed on the upper plate, a matrix 5 connected via rods 6 with its movement drive located on the upper plate, a ring inductor 7 mounted on the matrix concentric to the punch and connected via a controlled discharger 8 to a capacitive storage device 9.

The device works as follows.

The blank is mounted on the protrusion 3, after which the top plate begins to move. When the limit switches are triggered, the matrix 5 moves to the punch until the gap between them exceeds the wall thickness of the resulting part by 30-50%.

After contact of the punch with the workpiece, the non-stationary stage of the reverse extrusion of the workpiece material into the conical cavity between the matrix 5 and the punch 4, as well as into the cavity of the punch under the process, begins.

At the onset of the stationary stage of the process, the load cell is triggered and the matrix drive establishes a gap corresponding to the wall thickness of the part. From the same strain gauge, the signal goes to the control circuit of the arrester 8, from which the capacitive drive 9 operates.

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Crimping part of the workpiece. Subsequent bits of the capacitive accumulator 9 occur automatically and are terminated by a signal from the limit switch at the end of the working stroke of the upper plate 1. After that, the plate 1 rises and the matrix 5 moves out of the working area, providing access to the obtained part. The cycle is repeated.

Claims (1)

Invention Formula A device for manufacturing parts such as glasses, preferably with an internal protrusion, comprising upper and lower plates, a punch with a cavity under the protrusion 0 the obtained part and the conical working part, fixed on the top plate, as well as a matrix with a working cavity and a conical lead-in surface, characterized in that, in order to improve the quality of the parts produced and expand technological capabilities, it is equipped with a ring inductor mounted on the die from the punch side with a radial gap relative to its lateral surface and connected via a controlled discharge to a capacitive storage, and the matrix is made with a through working cavity; A limited reciprocating movement relative to the punch and kinematically associated with the upper plate. one