Molding method for angled screw cap of airplane

A forming method and angle type technology, applied in the direction of nuts, threaded fasteners, forging/pressing/hammering machinery, etc., can solve the problem that angle type nuts cannot meet the requirements and so on

Inactive Publication Date: 2017-01-25
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, as the aerospace industry has higher and higher requirements for high-strength, high-self-locking and high-corrosion angle nuts, the angle nuts manufactured and processed by traditional processes can no longer meet the requirements.

Method used

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  • Molding method for angled screw cap of airplane
  • Molding method for angled screw cap of airplane
  • Molding method for angled screw cap of airplane

Examples

Experimental program
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Embodiment Construction

[0017] The present invention is described in detail below in conjunction with accompanying drawing:

[0018] The cold heading die is installed on the cold heading machine, and the blank is transferred to the cutting bush 2 through the wire wheel, and then sent to the female mold 5 by the cutting knife 1 to ensure that the blank and the female mold are on the same horizontal line. When the female mold is in use, the cutting knife returns to the original position, and then the rough material is pushed into the female mold 5 through a punch 4, so that it can withstand the female mold ejector 6, and the punch 4 continues to move forward, and the head of the workpiece The primary upsetting main mold is used to preform the blank so that its head becomes an eccentric mushroom head shape. After the preforming is completed, the first punch 4 and the second punch 7 move vertically through the slider on the machine tool, and the second punch 7 After being sent to the upsetting line, the ...

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PUM

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Abstract

The invention relates to amolding method for an angledscrew capofan airplane, which is mainly used for connecting sheet metal parts of the airplane. A cold upsetting mold is arranged on a cold upsetting machine; a blank is conveyed into a cutting bushing through a pulley, and is then conveyed to a female mold through a cutter, so that the blank and the female mold are kept on the same horizontal line; when the blank slightly enters the female mold, the cutter gets back to an original position, and the blank is upset into the female mold through a stamping mold I, so that the blank is pressed against a female mold mandrel; when the stamping mold I moves forwards continually, the blank is pre-molded by aprimary upsetting master mold on the head part of a workpiece, so that the head part of the workpiece becomes an eccentric mushroom head shape; after the end of pre-molding, the stamping mold I and a stamping mold II move vertically through a slide block on a machine tool, and the stamping mold II is conveyed onto an upsetting line, so that finial upsetting is performed on the head, and the upset workpiece is pushed out of the female mold mandrel; meanwhile, a charging roller starts to rotate, so that a new working cycle is started.

Description

technical field [0001] The invention relates to a forming method for an angle nut used in an aircraft, which is mainly used for connecting sheet metal parts of the aircraft. Background technique [0002] Because of its good self-locking performance and high precision, the angle nut is mainly used for the connection of sheet metal parts and stamping parts on aircraft. Widely used in aircraft. Over the years, this part has been forged into a molded part and then machined. Because the cost of the molded part is high, the processing cycle is long, and the tolerance of the molded part is large, it has a great impact on the self-locking and service quality of the part. In order to improve work efficiency and reduce costs, the molded parts are changed to cold heading. In recent years, as the aerospace industry has higher and higher requirements for high-strength, high-self-locking and high-corrosion angle nuts, the angle nuts manufactured and processed by traditional technology c...

Claims

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Application Information

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IPC IPC(8): B21J13/02B21J13/08B21K1/64B21D28/14
CPCB21J13/02B21D28/14B21J13/08B21K1/64
Inventor 芦杰刘拥军徐健宇汪蕾任大为
Owner JIANGXI HONGDU AVIATION IND GRP
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