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One time shaping method of grooved semi-axis nut

A forming method and shaft nut technology, applied in the directions of bolts, threaded fasteners, connecting components, etc., can solve problems such as multiple turnover costs, and achieve the effects of improving utilization, reducing logistics turnover costs, and saving costs.

Inactive Publication Date: 2019-11-08
上海纳特汽车标准件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multiple turnaround costs are required during production and processing

Method used

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  • One time shaping method of grooved semi-axis nut
  • One time shaping method of grooved semi-axis nut
  • One time shaping method of grooved semi-axis nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment one: if Figure 1-8 Shown:

[0031] The one-time forming method of the slotted axle nut comprises the following steps:

[0032] 1) Material cutting, the material knife and material cutting die cut the material into a specified length according to the length of the material to be formed, and then send it to the shaping die mouth;

[0033] 2) Shaping, the broken material is sent to the mouth of the shaping die, the shaping male mold punches the broken material blank into the shaping female mold, and then extrudes the blank to deform to achieve the required shaping shape and prepare for the next sequence;

[0034] 3) Preforming and slotting, and the shaped blank is sent to the opening of the slotting die by clamps;

[0035] 4) Upsetting and forming grooves, the pre-grooved blank is sent to the mouth of the upsetting die by the clamp, and the upsetting male mold punches the shaped blank into the upsetting female mold to perform upsetting and forming groove defo...

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PUM

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Abstract

The invention relates to a semi-axis nut processing technology field, and discloses a one time shaping method of a grooved semi-axis nut. The one time shaping method of the grooved semi-axis nut includes: using a grooving male die to beat a blank to be shaped into a grooving female die, and then deforming the blank through extrusion, wherein in the extrusion forming process, three preformed grooves are extruded out through the complete blank, and grooves are not completely shaped at the moment, and following reshaping is needed. An upsetting female die is provided with a needed grooving structure similar to a grooving structure of the grooving male die used in the last step, and therefore the grooves preformed in the last step need to be completely matched with the grooving structure of the grooving die used in the step. In the one time shaping method of the grooved semi-axis nut, not only is forming of a part in a shape consistent with a shape in a drawing is required in punching, butalso the part is needed to meet certain quality requirements. Cutting faces are required to be straight, bright and clean, and free of defects such as cracks. The surface of the part is required to be as flat as possible, and in other words, vault bends on the surface of the part are small, and furthermore the effect that dimensional accuracy cannot exceed a tolerance range specified in the drawing needs to be guaranteed. The one time shaping method of the grooved semi-axis nut omits a punch cutting process, saves cost of the punch cutting process, and can achieve the same effect.

Description

technical field [0001] The invention relates to the technical field of half-shaft nut processing, in particular to a one-time forming method for a slotted half-shaft nut. Background technique [0002] Cold heading forming is one of the few new technologies for non-cutting metal pressure processing. It is a processing method that uses the plastic deformation of metal under the action of external force, and with the help of molds, redistributes and transfers the metal volume to form the required parts or blanks. Existing axle nuts need to be punched out during production. Punching is a stamping process that uses a die to separate part of the material or process part from another part of the material, process (process) part or waste. Multiple turnover costs are required during production and processing. For this reason, we propose a one-time molding method for slotted half shaft nuts. Contents of the invention [0003] The present invention mainly solves the technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/44
CPCB21K1/44
Inventor 李龙
Owner 上海纳特汽车标准件有限公司
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