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Permanent tool for compression molding of composite coil spring

A preformed, variable technology used in tooling to solve problems such as increasing the cost of variable taper parts

Pending Publication Date: 2021-05-14
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The described process significantly increases the part cost per variable taper component

Method used

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  • Permanent tool for compression molding of composite coil spring
  • Permanent tool for compression molding of composite coil spring
  • Permanent tool for compression molding of composite coil spring

Examples

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Embodiment Construction

[0042] The following description is merely exemplary in nature and is not intended to limit the disclosure, application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0043] refer to Figure 2 to Figure 4A Through 4E, tool 20 for forming variable taper component 30 is shown. The tool 20 generally includes a several-piece inner mandrel 40 , which will be described in more detail below, and in some forms an outer mandrel 120 .

[0044] The inner mandrel 40 includes a main insert 60 , a plurality of interlocks 80 and a tapered inner sleeve 100 . As shown in the figures, a plurality of interlocking pieces 80 are arranged concentrically around the main insert 60, and each of the components of the inner mandrel 40 are designed to be assembled and disassembled in a specific order so that they can be assembled and disassembled in each It is reused in a subsequent forming operation to...

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PUM

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Abstract

The present disclosure provides a permanent tool for compression molding of a composite coil spring. A tool for use in forming a variable taper component is provided. The tool includes an inner mandrel and an outer mandrel disposed around the inner mandrel. The inner mandrel includes a master insert defining opposed tapered edge faces, an external surface having a variable taper and a plurality of recesses configured to receive at least a portion of the variable taper component, and a tapered internal surface. The inner mandrel also includes a plurality of interlocking pieces arranged concentrically around the master insert, and a tapered inner sleeve disposed against the tapered internal surfaces of the plurality of interlocking pieces and the master insert. The outer mandrel defines a corresponding plurality of recesses configured to receive at least a portion of the variable taper component, wherein a maximum width of the interlocking pieces and the master insert is smaller than a minimum width of ends of the variable taper component.

Description

technical field [0001] The present disclosure relates to tools, and more particularly to tools for forming variable taper components such as coil springs. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Most commercially available tools for variable taper components, such as composite coil springs, are broken after forming the variable taper component in order to remove the variable taper component from the coiled tool. For example, and referring to figure 1 , shows a variable taper composite coil spring 10 comprising a smaller diameter portion 12 at each end and a larger diameter portion 14 at the center. Then, after the variable-taper composite coil spring 10 is formed / cured, the inner mandrel (not shown) used to form the variable-taper composite coil spring 10 is "locked" inside. Therefore, in order to remove the variable taper composite coil ...

Claims

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Application Information

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IPC IPC(8): B21F3/10
CPCB21F3/10B29L2031/7742B29C33/485B29C45/4421B29C43/36B29C2043/3665B29C43/02B29C53/60B29C45/40B29C45/2614B29C45/00B29C45/2602B29C45/561
Inventor 大卫·安东尼·瓦格纳杰夫·迈克尔·哈特杰拉尔德·J·希思
Owner FORD GLOBAL TECH LLC
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