Method utilizing middle and high-frequency induction to heat radial forging to form screws

A technology of high-frequency induction heating and radial forging, applied in metal processing equipment, etc., can solve the problems of large-diameter screw rods formed by radial forging without warm forming technology

Active Publication Date: 2014-04-30
XI AN JIAOTONG UNIV
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Problems solved by technology

In the patent with the publication number CN102814436A, a method of wheel-rolled warm forming screw parts is disclosed, but the warm forming technology has not been applied to the plastic processing technology of radial forging and forming large-diameter screw

Method used

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  • Method utilizing middle and high-frequency induction to heat radial forging to form screws
  • Method utilizing middle and high-frequency induction to heat radial forging to form screws
  • Method utilizing middle and high-frequency induction to heat radial forging to form screws

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Embodiment Construction

[0046] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0047] This example uses four hammer heads, which are arrayed at equal intervals along the axis of the workpiece in space, and the screw material is 42CrMo high-strength steel.

[0048] A method for a medium and high frequency induction heating radial forging lead screw, comprising the following steps:

[0049] Step 1: Clamp the workpiece 2, and one end of the workpiece 2 is clamped by the first manipulator 1;

[0050]Step 2, the surface of the end area of ​​the forming lead screw segment on the workpiece 2 is locally heated, specifically:

[0051] 2.1. Reference figure 1 , the workpiece 2 is fed in the direction of the radial forging hammer head 3, the formed lead screw segment on the workpiece 2 enters the medium and high frequency induction heater 4, and the medium and high frequency induction heater 4 is arranged between the hammer head 3 and the ...

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Abstract

The invention discloses a method utilizing middle and high-frequency induction to heat radial forging to form screws. The method includes clamping workpieces, heating partial surface of forming screw section end portion area of the workpieces, conveying workpieces heat section in a radial forging hammer direction, performing middle and high-frequency induction heating continuously, finishing thread shape forming of 1/2-2/3 portion of the forming screw section of workpieces via the hammer, clamping the other end of the workpieces via a second mechanical arm, loosening and retreating the first mechanical arm, performing middle and high-frequency induction heating continuously, finishing thread shape forming of unformed portion of the forming screw section of workpieces via the hammer, rapidly conveying the workpieces via the second mechanical arm in a clamping shaft direction, and discharging materials. The forming screw parts are formed via the middle and high-frequency induction heating and radial forging method, material using rate is increased, production circle is shortened, forming load is small, material flowing performance is good, forming accuracy is high, surface quality is good, screws with large material deformation resistance, high in hardness and large in diameter.

Description

technical field [0001] The invention belongs to the technical field of advanced material forming, and in particular relates to a method for forming a lead screw by medium and high frequency induction heating by radial forging. Background technique [0002] Rolling functional components are not only the basic functional components of machine tools, but also widely used in aviation, aerospace, vehicles, medical equipment and other fields. They are important general basic components in the machinery industry, and lead screws are an important part of rolling functional components. With the rapid development of aviation, aerospace, weapon industry and equipment manufacturing industry, functional components with high thrust, high speed, heavy load, high strength, high performance and long life are increasingly required. In particular, the demand for high-speed, heavy-duty, high-performance large-diameter lead screws using high-strength, hard-to-deform materials is increasing. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J1/06B21J5/00
Inventor 张大伟赵升吨张超
Owner XI AN JIAOTONG UNIV
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