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Combined mold for oil tube bolt processing

A technology of combining molds and bolts, applied in bolts, manufacturing tools, metal processing equipment, etc., can solve problems such as inability to guarantee quality and low efficiency, and achieve the effect of avoiding export and processing work, reducing production costs, and extending length.

Pending Publication Date: 2018-11-02
浙江裕泰汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, both the radial oil guide through hole and the axial oil guide channel of the oil pipe bolt need to be manufactured by lathe, which is inefficient and cannot guarantee the quality

Method used

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  • Combined mold for oil tube bolt processing
  • Combined mold for oil tube bolt processing
  • Combined mold for oil tube bolt processing

Examples

Experimental program
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Embodiment Construction

[0024] Referring to the accompanying drawings, the combined mold for oil pipe bolt processing includes: a first cold heading die, which is used to pre-puncture the wire blank 10 for making oil pipe bolts to obtain a first semi-finished blank 20; Preforming the head and the screw part of the first semi-finished blank 20 and performing secondary punching to obtain the second semi-finished blank 30; Flattening and punching three times to obtain the third semi-finished product blank 40; the fourth cold heading die is used to shape the head of the third semi-finished blank 40 into a hexagonal shape and punch four times to obtain the fourth semi-finished product Blank 50; the fifth cold heading die, for finishing the hexagonal head of the fourth semi-finished blank 50 and the hole of the screw rod to obtain the finished oil pipe bolt 60; the transmission mechanism, for transferring the wire blank to the first A cold heading mold 1, transfer the first semi-finished blank to the secon...

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Abstract

The invention discloses a combined mold for oil tube bolt processing. The mold is characterized by comprising a first cold heading mold for pre-perforating a wire billet for making an oil tube bolt toobtain a first semi-finished billet, a second cold heading mold for pre-forming the head and the screw portion of the first semi-finished billet and performing secondary punching to obtain a second semi-finished billet, a third cold heading mold for flattening the head of the second semi-finished billet and performing third punching to obtain a third semi-finished billet, a fourth cold heading mold for shaping the head of the third semi-finished billet into a hexagon and performing fourth punching to obtain a fourth semi-finished billet and a fifth cold heading mold for finishing the fourth semi-finished billet to obtain the oil tube bolt. Through five sets of molds, the oil tube bolt is punched five times to improve the quality of the punching, a waste material dug from each punching canbe used for extending the length of the bolt, the waste material can be fully utilized, and the production cost is reduced.

Description

technical field [0001] The invention discloses a mold for processing fasteners, in particular to a combined mold for processing oil pipe bolts. Background technique [0002] The oil pipe bolts on the market include screw rods. One end of the screw rod is provided with threads on the outer peripheral surface, and the other end is provided with a head that is coaxial with the screw rod and has a regular hexagonal surface on the peripheral surface. The oil guide channel is arranged coaxially with the screw rod, and the outer peripheral surface of the screw rod is provided with a radial oil guide through hole, and the radial oil guide through hole communicates with the axial oil guide channel. In the prior art, both the radial oil guide through hole and the axial oil guide channel of the oil pipe bolt need to be manufactured by lathe, which is inefficient and cannot guarantee the quality. Contents of the invention [0003] In view of the technical problems existing in the bac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21K1/46
CPCB21J13/02B21K1/46
Inventor 沈永瑞孔洪奎池辉罗燕汪斌董建形
Owner 浙江裕泰汽车配件有限公司
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