CS259579B1 - Forging tool with sliding and shaping ejector - Google Patents

Abstract

The forging tool with a sliding and shaped ejector is used for forging rotary parts with small central protrusions and with long thin protrusions. The above effect is achieved by the fact that a shaped ejector is slidably mounted in the die, in the cavity of which at least one sliding ejector is located, spring-loaded by a flexible filling, mounted in a housing and secured by a nut.

Description

259379

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a forging tool with a displaceable and shaped ejector, intended to form thin sheet but rotating parts with longer thin one-sided but both sides with automatic forging machines.

The forming of thin or rotating parts with longer one-sided or multi-sided protrusions is carried out by means of a die press using forging tools having corresponding bevels to the dividing plane in order to easily remove the die parts. In this fitting method, the die is molded out of the tool by means of an ejector. Before the forging itself, it is necessary to cut, or cut, the material of the required length, which is further heated in the resistance furnaces. The worker manually picks up the heated keys from the furnace, inserts the die cavities where the desired shape is transformed. After molding, the die is ejected from the die by a market ejector. Such a method of producing components is very laborious, low in productivity and energy intensive.

On automatic forging lines, parts of this type do not give rise to the ejection system, in which the component is ejected by a solid market ejector on a small flat. Accordingly, in the forging of components with small central projections on the forging pins, the component is collapsed and the molded part is rendered unusable when it is ejected from the die cavity.

In the forging of long-thin-extruded moldings, the thin-film pullers are broken again due to the large resistances. The production of rotary components with small central projections with long thin protrusions is provided by the technology of machining and machining on automatic lathes, which has the disadvantage of requiring a large consumption of high yield waste base material.

The aforementioned drawbacks in a considerable amount are removed by the forging tool and the sliding atvaric ejector. which consists in the fact that in the die there is a slidable insertion spreader, in which there is at least one slider, which is spring-loaded in a sleeve, secured by a nut. The advantages of a tool with a sliding atvarian insert are mainly the fact that it allows the forming of components with small central outlets and long thin protrusions on automatic forging machines, thereby significantly increasing the productivity of work during forging and further reaching saving on material. since the tool according to the invention allows for the forging of small-sized components with maximum processing of the base material with minimal waste. A further advantage of the solution according to the invention is that the molded part is initially stuck out of the die cavity with a molded extractor, and the molding is not discarded by ejection in the form of a thin sheet. Also, there is no breaking of thin thorn ejectors when forging components with thin, longer protrusions on automatic forging machines, since the die is loosened by a full ejector shaped ejector after the die forging, and then discarded by a sliding ejector with a ejector.

In the accompanying drawing, one example of an embodiment of a sliding and shape extractor is shown.

The forging tool with sliding and shape thrower consists of a die holder 1 in which the pressed die 2 is screwed tight by screws 16 through a support ring 8 and a spacer ring 9 with a bracket support 10 resting on the rear portion 11 in which the ejection pin 12 is slidable In the die 2, a slidable ejector 3 is disposed, which engages the sliding sleeve 5, the flexible infill 7. The flexible infill 7 and the ejector 11 with the ejection pin 12 is supported by a sliding ejector 4 extending through the cavity of the ejector 3.

The prestressing of the resilient filler 7, which must be larger than the friction resistances when exposing the molded part from the die cavity, is set by a nut 6 screwed into the sleeve 5 of the elastic filler 7 and secured against turning by the locking screw 13. Mutual half of the die holder 1 and the support arm 10 is secured with a tongue 13, a screw 14 screwed onto the spacer ring 9.

These elements provide for axially displacing the component from the die 2 so that the extruders do not protrude above the dividing plane and there is no damage or deformation of the component. The movable tool part is formed by a tamping bar 17, a tamper housing 18 and a retainer 19.

The forging tool with sliding and shape thrower according to the invention operates as follows:

The ejection system of the machine is pushed by the ejector pin 12 and the movable ejector 4 is pushed out by the ejector pin 12 and the movable ejector 4 is pushed out by the ejection pin 12. die 2. The sliding ejector 4 is moved in the mold 3 by sliding the shaped ejector 3 onto the back part of the die 2, thereby forcing the projection of the forging piece of the ejector 3 into the dividing line.

Claims (2)

SUBJECT A forging tool with a sliding and shaped ejector consisting of a die, a die holder and ejectors, characterized in that a shaped ejector (3) is displaceably mounted in the die (2), in the cavity of which at least one slide is located BACKGROUND OF THE INVENTION the ejector (4) is sprung by a flexible filling (7) housed in the housing (5). A forging tool with sliding and shaped ejector according to claim 1, characterized in that the spring (7) in the housing (5) is secured by a nut (6). 1 sheet of drawings I co Severography, n. p. Race 7, Moat Price 2, «KSt