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Method and apparatus for in-situ leveling of progressively formed sheet metal

A metal sheet and pre-forming technology, applied in the field of sheet metal stamping parts, which can solve the problems of unavailability of guide holes and punching of guide holes, etc.

Inactive Publication Date: 2006-02-22
GENCELL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Guide holes are not available, for example, when the material is too thin, or the end product makes it impossible to punch guide holes in the roll of material

Method used

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  • Method and apparatus for in-situ leveling of progressively formed sheet metal
  • Method and apparatus for in-situ leveling of progressively formed sheet metal
  • Method and apparatus for in-situ leveling of progressively formed sheet metal

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 A preferred embodiment of the stretch forming press 10 according to the present invention is shown. The press 10 includes a walking tool 12 having a ram 14 stroked by a crankshaft 16 to cycle the walking tool 12 between an open state and a closed state. Stroke 18 of ram 14 opens ram 14 to a known height and closes ram 14 to a known height when the walking tool 12 is in its open and closed states, respectively. The walking tool 12 consists of three stations and a roller feed mechanism 20 which advances a roll of sheet metal through the walking tool. The preforming station 22 has a pair of spaced apart dies 24, 26 which stretch form a pair of aligned recesses, such as channels, at a central portion of a sheet metal strip 32 supplied from an input roll 34 28 (see figure 2 ). The strip of metallic material 32 may be made of any material having elastic properties. When the sheet metal strip 32 is stretched into shape, snapback occurs. In a preferred embodimen...

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PUM

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Abstract

A stretch-forming press (10) for stamping continuously fed sheet metal (32) includes a ram (14), a base member (44), and a feed mechanism (20) configured to advance a strip of sheet metal through the stretch-forming press. A forming station (58) has a die (59) configured to form a desired pattern in the strip of sheet metal. A leveling station (86) has a pair of opposed jaws (88, 90) slidably received in corresponding recesses (92, 102) of the stretch-forming press, with the jaws oriented at an angle with respect to a direction of travel for the strip of sheet metal as it passes through the leveling station (86).

Description

technical field [0001] This invention relates to sheet metal stampings formed using progressivest amping tools, and more particularly to methods for leveling stamped sheet metal to remove or avoid unwanted deformation and device. Background technique [0002] Sheet metal is a common material used in high volume production manufacturing. Stepping tooling is often used to mass-produce parts from a roll of sheet metal by passing the sheet metal through a type of tool or series of tools such as a stamping press or a stretch forming press , step by step to form the part to be produced. This requires precise control of the feed distance (or pitch) of the tool that is doing the punching, the feed speed and frequency of the sheet metal coil (the frequency of opening and closing of the press determined by the revolutions per minute (RPM) of the crankshaft) . [0003] For example, in the case of a final product stamped from said coil and collected in a receiving box, for example i...

Claims

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Application Information

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IPC IPC(8): B21D31/04B21D1/00B21D25/00B21D35/00
CPCB21D1/00B21D35/00B21D25/00B21D31/04
Inventor 杰弗里·P·艾伦
Owner GENCELL INC