Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

New forging process for yoke shaft of transmission shaft

A technology of transmission shaft and new process, applied in the direction of manufacturing tools, engine components, metal processing equipment, etc., can solve the problems of large machining allowance, low production efficiency and high heating energy consumption of forgings, and achieve small machining allowance and reduce energy consumption. consumption effect

Active Publication Date: 2015-03-25
XUCHANG ZHONGXING FORGING +1
View PDF4 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Low production efficiency;
[0005] 2. The overall energy consumption of intermediate frequency heating is high;
[0006] 3. Large machining allowance for forgings;
[0007] 4. The average die cost per forging is high

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
  • New forging process for yoke shaft of transmission shaft
  • New forging process for yoke shaft of transmission shaft
  • New forging process for yoke shaft of transmission shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The new forging process of transmission shaft joint yoke shaft of the present invention comprises the following steps:

[0026] (1) Blanking: use a fully automatic CNC sawing machine or CNC shearing machine to blank the round steel into blanks of specified size;

[0027] (2) Local medium-frequency induction heating: Medium-frequency induction heating is performed on one-third of the length of each billet, and the heating temperature is controlled between 1100° and 1150°C, and the temperature measurement and control adopts an infrared thermometer;

[0028] (3) Billet making: put the heated billet into the billet making mold on the billet making press, operate the billet press to forge the heated end of the billet, take out the head after forging and forming, and operate the billet press to The head is flattened into the shape of an athletics track;

[0029] (4) Final forging: place the billet in the final forging die on the final forging press for forging, and after for...

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

A new forging process for a yoke shaft of a transmission shaft comprises the following steps that first, blanking is performed; second, local medium frequency induction heating is performed; third; blanks are formed, wherein heated blank materials are placed in a blank-forming mold on a blank-forming press machine, the blank-forming press machine is controlled to forge and press the heating ends of the blank materials, the blank materials are taken out after the heads are formed in a forged and pressed mode, and the blank-forming press machine is controlled to press the heads flat and enable the heads to be in the shape of a track for athletic running; fourth, final forging is performed, wherein the blank materials are placed in a final forging mold on a final forging press machine to be forged and pressed, and the blank materials become final forged pieces after being forged and pressed; fifth, edge cutting is performed, wherein middle recess parts or flash parts of the final forged pieces are cut off so that the final forged pieces can become forged piece products. Through the new forging process for the yoke shaft of the transmission shaft, stress concentration between blank material rods and the molds is avoided, the cost of pre-forging mold materials and the mold machining cost are saved, the mold production cycle is shortened, machining allowance is small, production efficiency is further improved, the labor intensity of workers is relieved, and production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of forging production of automobile transmission shafts, and in particular relates to a new forging process of transmission shaft joint yoke shafts. Background technique [0002] At present, the yoke shaft forging produced by the traditional forging process has a large machining allowance, high energy consumption, and low production efficiency. The traditional forging process of the yoke shaft is: blanking → overall intermediate frequency induction heating → billet making → pre-forging → final forging → trimming. The die forging slope of the blank after overall heating is ≥ 2 ° during forging, resulting in a large machining allowance during machining, and high energy consumption for overall heating. Because the traditional forging process of the yoke shaft is designed with pre-forging, pre-forging The increase in technology not only increases the cost of mold materials and mold processing, but also incr...

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): B21K1/06B21J13/02
CPCB21J13/02B21K1/06
Inventor 孟会涛刘其勇胡卫华郭艳珺张恒丁圣杰安伟浩陈喜乐赵世启宋航
Owner XUCHANG ZHONGXING FORGING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products