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Charging device for a bush expander for punched bush blanks made of steel, for example, and method for forging punched bush blanks

A charging device and sleeve technology, applied in forging/pressing/hammer devices, driving devices of forging presses, forging presses, etc., can solve the problem of changing the taper and forming the sleeve, affecting the degree of structural forging, and being unsuitable for partial forging. and other problems, to achieve the effect of high accuracy and flexible operation mode

Inactive Publication Date: 2011-12-21
BRIGHTON EQUIP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] DE 2420921A1 is not suitable for partial forging due to the degree of forging affecting the structure, changing the conicity and forming the sleeve

Method used

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  • Charging device for a bush expander for punched bush blanks made of steel, for example, and method for forging punched bush blanks
  • Charging device for a bush expander for punched bush blanks made of steel, for example, and method for forging punched bush blanks
  • Charging device for a bush expander for punched bush blanks made of steel, for example, and method for forging punched bush blanks

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Embodiment Construction

[0112] In the accompanying drawings, the present invention is applied to a sleeve diameter expanding device, which is configured as a forging press and marked with 1 .

[0113] The sleeve blank 3 can be fed to the sleeve diameter expanding device 1 by means of the cart-type charging device indicated as a whole by the symbol 2 , and the sleeve blank 3 can also be transported out of the sleeve diameter expanding device 1 .

[0114] The sleeve blank 3 can consist, for example, of steel and is fed to the sleeve expansion device 1 at a forging temperature of more than 1200° C. in the case of steel, in which the sleeve blank 3 remains for a certain period time, for example 1-2 hours, and then the sleeve blank 3 is returned to, for example, a heating furnace through the charging device 2, and reheated therein to the forging temperature. Other sleeve blanks 3 can be heated in other heating furnaces at the same time, and other sleeve blanks are alternately fed to the same sleeve diamet...

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Abstract

The invention relates to a charging device for a bush expander for punched bush blanks, having a charging weight of, in the warm state, many hundreds of tonnes, for example 200 to 800 tonnes, preferably 200 to 600 tonnes, and to a method for forging punched bush blanks.

Description

technical field [0001] The invention relates to a charging device for a sleeve expanding device for a perforated sleeve blank. The invention also relates to a method for forging a perforated sleeve blank. Background technique [0002] WO 2009 / 146715A1 discloses a sleeve expansion device, in which a perforated sleeve blank can be placed on a forging mandrel, which can be internally cooled by a coolant, and the perforated sleeve blank can be placed on a support roll On the other hand, the outer side of the perforated sleeve blank can be partially deformed by at least one laterally placed forming tool, with intermittent rotation of the sleeve blank about its own longitudinal axis, driven by, for example, hydraulic pressure The device is driven intermittently and the sleeve blank is internally supported on a forging mandrel. With previously known sleeve expanding devices, the sleeve blank has a unit weight of several hundred tons, for example a weight between 200-600 tons, pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/08
CPCB21J9/02B21K1/761B21J9/12B21J9/20B21J13/10B21J1/06
Inventor S·格罗埃
Owner BRIGHTON EQUIP CORP