Bars and tubes material unsymmetrical radial welding punched high performance precision blanking method

A precision blanking, asymmetric technology, applied in metal processing equipment, hammer driving devices, etc., can solve the problem of limited material range, and achieve the effect of wide processing range, high efficiency and good quality

Inactive Publication Date: 2007-10-24
XI AN JIAOTONG UNIV
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  • Claims
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Problems solved by technology

However, the range of applicable materials is still limited, and ...

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  • Bars and tubes material unsymmetrical radial welding punched high performance precision blanking method
  • Bars and tubes material unsymmetrical radial welding punched high performance precision blanking method
  • Bars and tubes material unsymmetrical radial welding punched high performance precision blanking method

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Embodiment Construction

[0017] The asymmetrical radial forging precision blanking method of the rod and tube material of the present invention utilizes the fatigue fracture mechanism of the rod and tube material, and cyclically loads the rod and tube material by depressing the radial direction of the rod and tube material by the hammer head. The working contour curve of the hammer head adopts a cycloid, which can perform radial sliding movement under the constraint of the radial sliding groove. In order to realize the radial feed movement of the hammer head, a cylindrical cam is used to cooperate with it. The cylindrical cam can rotate freely around its central axis, and the relative motion between the hammer head and the cylindrical cam is rolling friction. The rod and tube material is fixed and still, using 4 uniformly arranged hammerheads, which are constantly in contact with 7 cylindrical cams distributed along the circumference, so that the load is continuously applied in the radial direction, wh...

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Abstract

The invention relates to a feeding method with the bar tube set on the asymmetrical radial impact forging precision feeding device which mainly comprises the micro tuning turbine, micro tuning base, micro tuning lever, hammer feeding cylinder, micro tuning worm, micro tuning base shaft sleeve, hammer pole, feeding cam, main shaft, hammer, with the micro tuning worm driven by the exchange servo generator, controlling the rotation angle of the micro tuning turbine, hammer lever being able to slide inside the main shaft slide slot, working curvature of the hammer lever matching with the feeding cam, pushing the radial down of the hammer lever, with one hammer pushed down one time, 4 hammers in even distribution, 7 cams forming into roller structure. When the main shaft drive hammer lever working in circumference movement, it drives the cam loading, using the bar fatigue broken principle, fostering the fissure expanding along the radial circumference, to finish feeding and get fine cross section quality.

Description

technical field [0001] The invention belongs to the technical field of low energy consumption, near-net and high-efficiency precision molding. It specifically relates to a high-efficiency and precise blanking method for asymmetric radial forging and punching of rods and tubes. The method adopts the principle of radial forging and punching to realize the circumferential generation, expansion and fracture of fatigue cracks on rods under periodic radial loading, thereby completing the process. Precision blanking. Background technique [0002] The blanking problem of metal bars widely exists in the material preparation process of cold extrusion, die forging, metal chain pins, rolling bearing rollers, bolts, nuts, pins, and shafts, and in these blanking processes, the following The amount of materials is huge. For example, the chain township in Jinhua, Zhejiang Province produces metal chains with a length of hundreds of millions of meters every year. Beij...

Claims

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Application Information

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IPC IPC(8): B21J5/06B21J7/46
Inventor 赵升吨王振伟张立军雷净
Owner XI AN JIAOTONG UNIV
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