Method and die for processing bolt

A processing method and technology of bolts, applied in the direction of bolts, manufacturing tools, metal processing equipment, etc., can solve the problems of low dimensional accuracy, low productivity, and low screw straightness of light screws, so as to avoid processing defects, easy installation and positioning, and easy operation. The effect of simple mold structure

Active Publication Date: 2012-11-07
浙江中航来宝精工科技有限公司
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the defects of low dimensional accuracy of the obtained smooth screw rod, low screw straightness and low productivity in the bolt processing method of the prior art, and to provide a method that not only has high production efficiency, but also obtains a smooth screw rod with high dimensional accuracy and high production efficiency. High-efficiency processing method of slender bolts and mold used therefor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and die for processing bolt
  • Method and die for processing bolt
  • Method and die for processing bolt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0044] Take the bolt of processing a concrete elongated screw rod as example below, the present invention is described in detail.

[0045] The dimensions of the desired finished bolts are as follows: Image 6 As shown, the diameter of its elongated screw is The elongated screw has a length of 320 mm.

[0046] 1. Cutting according to the length of a single piece of material - the diameter is obtained by through-grinding rod member 21;

[0047] 2. According to Image 6 Select the appropriate upper die 5 for the bolt head size shown;

[0048] Select the extended mold cover 8 with a height of 270mm and put it into the through hole of the lower template 7, then place the lower mold pad 14 with a height of 70mm on the extended mold cover 8, and put the cushion block 9 into the axis hole 19 Inside, adjust the length of the rod 21 in the axial hole 19 with the spacer 9, the length of the rod 21 in the axial hole is 320 mm, press the gland 6 on the shoulder 20 and use the bolts ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method and a die for processing a bolt. The defects that methods for processing long and thin bolts in the prior art are low in unthreaded screw dimensional precision, low in screw straightness and low in production rate are eliminated. The die comprises an upper die and a lower die, an upper die cavity which is matched with a bolt head is arranged on the upper die, the lower die is composed of a lower die sleeve, a lower die sleeve fixing device and a cushion block, an axis center hole is arranged on the lower die sleeve, and the outer diameter of the cushion block is matched with the inner diameter of the axis center hole. The processing method uses the die. By the aid of the method and the die, the production efficiency is high, and the obtained unthreaded screw dimensional precision is also high.

Description

technical field [0001] The invention relates to a bolt processing method and a used mold, in particular to a slender bolt processing method and a used mold. Background technique [0002] At present, the processing of slender bolts mostly uses the head of the bolt to be hot-upset first to obtain a bolt blank that meets the size requirements of the bolt head, and then turn the screw on a lathe to obtain a smooth screw with the required accuracy and size requirements, and then proceed on the smooth screw. Thread processing to obtain finished bolts. The processing of light screws is mostly carried out on lathes. Since the screws are thin and long, in order to prevent the deformation of the screws due to thermal expansion and contraction during turning and elastic deformation during cutting, auxiliary devices such as live centers, counter rests, and center frames are usually used to control the screw. Provide auxiliary support. Here, the live center is mainly used to solve the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21K1/46
Inventor 陆勤标王涛陈菊姚国燕顾建平杨徐帆
Owner 浙江中航来宝精工科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap