Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Automobile forming die anti-double-material device

A technology for automobiles and molds, which is applied in the field of anti-double-material devices for automobile forming molds, can solve the problems of inability to guarantee the double-material recognition rate, shutdown of automatic stamping production lines, and increased stress on mold inserts or mold bases, so as to achieve safe and reliable mold strength. , to ensure the effect of safety and service life

Active Publication Date: 2019-09-17
成都普什汽车模具有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The other is the mold structure for forming high-strength plates or thick plates. For example, when forming medium-high-strength plates with a thickness of 1.2mm, due to the high yield strength of medium-high-strength plates, when all the tonnage of the press is applied under the second sheet In the mold structure, according to the actual working conditions, the mold structure can hardly return to its original shape after the elastic deformation of more than 1.2mm, and most of the time, plastic fracture will occur at the stress concentration part of the mold
[0005] In terms of the probability of grabbing double materials and the degree of damage, the high-strength panels in automobile molds, such as A-pillars, B-pillars, etc., are beam-shaped in size, and the phenomenon of grabbing double-materials is particularly serious when automatic feeding devices are used to grab blanks. Although the anti-double material sensor can avoid the above phenomenon to a certain extent, sometimes it is not effective in some structures or production lines, and cannot guarantee a 100% double material recognition rate
According to previous quality accidents, when double material occurs, due to the small gap of the mold surface, when the thickness is increased by one plate, the force on the mold insert or mold base during forming increases sharply, resulting in the fracture of the mold base or insert , on the one hand, it will cause economic loss of the mold, and at the same time, it will cause the automatic stamping production line to stop production for more than one month

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
  • Automobile forming die anti-double-material device
  • Automobile forming die anti-double-material device
  • Automobile forming die anti-double-material device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 , figure 2 and Figure 5 As shown, the present invention includes a reference structural member 1, the top surface and the bottom surface of the reference structural member 1 are flat and parallel to each other, the height of the reference structural member 1 is marked as h; the front and back of the reference structural member 1 are flat, And parallel to each other; the middle part of the back of the reference structure 1 is provided with a groove, the bottom surface of the groove is a plane parallel to the back of the reference structure 1, and the depth of the groove is marked as d 1 , the groove runs through the upper and lower ends of the reference structural member 1, the width of the bottom surface of the groove is marked as a, along the length direction of the groove, the width of the bottom surface of the groove is th...

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 relates to an automobile forming die anti-double-material device, and belongs to the technical field of automobile covering part dies. The automobile forming die anti-double-material device is mainly suitable for a high-strength plate or thick plate die structure. The double-material device is additionally arranged between a wedge sliding block and insert of a die, and key parameters (breaking point relative position determined by fracture width b, f1 and f2, and receding distances d1 and d2 of two sides) are reasonably designed, so that the strength of the die is safe and reliable when a single plate material is formed in a normal state. When two plates are formed in a die cavity, the section A-A of the anti-double-material device is broken before a die main body structure loses effect. In the fracture process, the receding space in the device is used for buffering the contact stress of forming surfaces of the insert, a die seat and the like, so that the structure of the die is not damaged, and the safety and service life of the whole die can be ensured.

Description

technical field [0001] The invention relates to a double-material preventing device for automobile forming molds, which belongs to the technical field of automobile cover moulds. Background technique [0002] The original intention of the design structure of any mold is to form a sheet, mainly because there is no space in the design of the mold structure to form two sheets at the same time. When two sheets are formed by accident, there are two situations according to the thickness and tensile strength of the sheet: [0003] One is when forming two sheets, such as forming a single sheet with a thickness of 0.6mm in the outer sheet, due to an extra sheet thickness, all the force of the tonnage of the press will act on the second sheet, resulting in The thickness of the second sheet can only be avoided by the elastic deformation of 0.6mm in the stressed part of the mold. According to experience, usually after the elastic deformation of 0.6mm occurs in the mold structure, the m...

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): B21D55/00B21D37/10B21D53/88
CPCB21D37/10B21D53/88B21D55/00
Inventor 周厚保段彦宾王冀军陈科刘龙芬李键毛静莉
Owner 成都普什汽车模具有限公司
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
Eureka Blog
Learn More
PatSnap group products