Method for forming bearing tapered roller blanks through cold extrusion and corresponding die for method

A tapered roller and cold extrusion technology, applied in the direction of metal extrusion dies, etc., can solve the problems of poor quality, large blanking deformation, time-consuming waste materials, etc., and achieve the effect of less damage, improved precision and shape

Inactive Publication Date: 2013-01-30
周方义
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the problems of large blanking deformation in the forming process of tapered roller blanks and the poor quality and time-consuming waste materials of large-diameter rollers formed by lathe, a kind of diameter larger than 24mm roller cold extrusion molding method, and the corresponding shear die and cold extrusion molding die

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 for forming bearing tapered roller blanks through cold extrusion and corresponding die for method
  • Method for forming bearing tapered roller blanks through cold extrusion and corresponding die for method
  • Method for forming bearing tapered roller blanks through cold extrusion and corresponding die for method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Cold extrusion die structure: the upper die backing plate 37, the punch cover 35 and the forming punch 34 are sequentially installed under the upper template 21, and the guide sleeves 33 installed under the four corners of the upper template 21 are installed on the four corners of the lower template 26 On the guide post 32 of the guide post 34, there is an annular groove on the lower end surface of the forming punch 34, and the height of the round block raised in the center of the annular groove is lower than the lower end surface of the forming punch 34; a lower mold pad is installed on the lower template 26 Plate, the upper center of the lower mold backing plate is provided with a die cover 25, a cavity housing 24 is installed in the middle of the die cover 25, an alloy cavity 22 and a molded part 23 are installed in the cavity housing 24, and the alloy cavity The central part of the first half of 22 is a 2 ° tapered hole, the central part of the lower half is a cylind...

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

PropertyMeasurementUnit
Large head diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for forming bearing tapered roller blanks through cold extrusion and a corresponding shearing die and a cold extrusion forming die for the method. The method comprises the following steps of: I, putting bar stock in the shearing die, and shearing the bar stock into required cylindrical stock parts; II, polishing, washing and drying the surfaces of the stock parts; and III, putting the stock parts in the cold extrusion forming die, and performing punch forming to obtain the blanks. According to the method for forming tapered rollers through the cold extrusion, the current situation that only tapered rollers of which the diameters are within 24mm can be formed through the cold extrusion for so long in China is changed, so that tapered rollers of which the diameters are greater than 24mm can also be formed through the cold extrusion. Moreover, compared with a traditional method for forming the tapered rollers of which the diameters are within 24mm through the cold extrusion, the precision and the shape are greatly improved when the tapered rollers which are equal in diameter are processed by the method disclose by the invention.

Description

technical field [0001] The invention relates to a manufacturing method of a bearing tapered roller, a corresponding shearing die and a cold extrusion die. Background technique [0002] Roller production is bound by traditional models in terms of roller design, tooling design, process preparation and testing procedures, etc. Equipment, tooling, raw materials, management levels, and process quality control capabilities are restricted by traditional habits, resulting in roller production process routes. Long, large processing allowance, many processing procedures, and many times of loading and unloading. The tooling tools have not been improved for many years, the production process is backward, the raw materials are wasted, the production cost is high, and the process rationality is poor. [0003] Z31-25 and Z31-13 cold heading machines are basically used for blank forming of cylindrical rollers, tapered rollers and spherical rollers with a diameter below Φ24mm. The blanking...

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
IPC IPC(8): B21C23/02B21C25/02
Inventor 周方义
Owner 周方义
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