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Blank manufacturing process and tooling of a large double-head connecting shaft flange

A manufacturing process and flange technology, which is applied in the blank manufacturing process and tooling field of large double-head coupling flanges, can solve the problems of increasing machining costs, prolonging delivery time, and failing to meet customer delivery time

Active Publication Date: 2020-07-07
江阴普洋重工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One is that due to the free forging, the blank machining allowance is relatively large, especially because the outer circle of the neck section of the double-head coupling flange cannot be forged by free forging, and the outer circle of the neck section can only be turned out by turning. , thus greatly increasing the machining time, which increases the cost of machining on the one hand, and prolongs the delivery time on the other hand, which cannot meet the customer's delivery time requirements
[0005] The second is that the outer circle of the neck section is turned out by turning, and the remaining part turned into a large amount of scrap iron scraps, resulting in a low utilization rate of raw materials, which is not in line with the development direction of contemporary green manufacturing

Method used

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  • Blank manufacturing process and tooling of a large double-head connecting shaft flange
  • Blank manufacturing process and tooling of a large double-head connecting shaft flange
  • Blank manufacturing process and tooling of a large double-head connecting shaft flange

Examples

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Effect test

Embodiment 1

[0043] like Figures 1 to 3 Shown is an embodiment of the blank manufacturing process and tooling of a large double-head coupling flange of the present invention, including flange forging and flange rough machining after flange forging. In the flange forging process, free Forging Forge the double-ended connecting shaft flange 1 into a cylindrical forging blank, and the rough machining process of the flange includes the following process steps:

[0044] (1) Rough machining broaching knife: use a lathe and a turning tool to rough the surface of the cylindrical forging billet;

[0045] (2) Process groove: After rough machining the roughening knife, use groove cutting equipment and cutting tools to place the outer circle 2 of the neck section of the double-head coupling flange 1 close to the back of the upper flange 3 and close to the lower flange 4 A circle of process grooves 5 are respectively processed at the position of the back, and the distances between the process groove 5 a...

Embodiment 2

[0063] like Figures 1 to 3 Shown is an embodiment of the tooling used in the blank manufacturing process of the large-scale double-head connecting shaft flange in Example 1, and its specific structure is as follows: the tooling is used for the double-head connecting shaft flange 1 The wire-cutting guide frame 6 for performing wire-cutting processing on the outer circle 2 of the neck section, the wire-cutting guide frame 6 includes an upper guide rod 7 and a lower guide rod 8 arranged horizontally according to the upper and lower positions, and at least on the upper guide rod 7 1. The front end position of the lower guide rod 8 is respectively provided with a guide wheel 10 for positioning and installing wire cutting wire 9, the section height dimension of the upper guide rod 7 and the lower guide rod 8, the outer diameter dimension of the guide wheel 10 All are smaller than the width dimension of the process tank 5 .

[0064] The fixing method of the tooling on the wire cutt...

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Abstract

The invention relates to the technical field of machining, and discloses a large double-head shaft connecting flange blank manufacturing process and tool. The process comprises flange forging and flange rough machining after flange forging; and in the flange forging process, hammer forging is adopted for forging a double-head shaft connecting flange into a cylindrical forging blank. The flange rough machining process comprises the following process steps of (1) rough machining of a napping knife; (2) processing of a process groove; (3) preparation of a wire-electrode cutting guide frame; 4) wire-electrode cutting preparation; and (5) wire-electrode cutting of a neck section outer circle. Wire-electrode cutting processing is carried out to enable a cut rough machining allowance part on theneck section outer circle to form an allowance ring separated from a double-head shaft connecting flange body. By means of the large double-head shaft connecting flange blank manufacturing process andtool, the machining time is shortened, the processing cost is reduced, the utilization rate of raw materials is improved, resources are fully utilized, and green manufacturing is achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a blank manufacturing process and tooling of a large double-head connecting shaft flange. Background technique [0002] like image 3 Shown is a double-ended coupling flange used in a large-scale machinery. The material is an alloy structural steel forging or a stainless steel forging. Its shape directly exceeds 1 meter, and it belongs to a multi-variety, multi-variety, small-batch production mode. Due to the small quantity of double-ended coupling flanges of each specification, free forging is usually used to reduce mold costs and shorten production cycles. [0003] However, the above-mentioned double-ended coupling flange also has the following problems during production: [0004] One is that due to the free forging, the blank machining allowance is relatively large, especially because the outer circle of the neck section of the double-head coupling flange cannot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23H7/10
CPCB23H7/105B23P15/00
Inventor 秦雪忠
Owner 江阴普洋重工有限公司
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