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

Composite positioning device and method for chassis foundation large-size component and FE end of multiple units

A technology for positioning devices and large parts, applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of time-consuming, labor-intensive, poor precision, and high labor intensity in the measurement process, achieve ingenious structural design and reduce production The effect of cost, convenient maintenance and maintenance

Active Publication Date: 2017-11-17
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In order to solve the cumbersome process steps of the existing EMU underframe synthesis method, the staff need to repeatedly perform long-distance size measurement for the positioning of the FE end at the assembly welding station tens of meters long. The measurement process is time-consuming, laborious, and has poor accuracy. The production efficiency is low. Due to the butt weld between the edge beam and the floor in the form of lap joint, the FE end will not be able to be plugged and mated with the two edge beams from the opening end of the inner curved section of the two edge beams, resulting in The automatic welding technology cannot be directly implemented, and the welding seam of tens of meters must be completed by manual welding, resulting in the technical problems of low welding seam strength, high labor intensity, and low production efficiency. The invention provides an EMU underframe foundation Synthetic positioning device and method for large parts and FE ends

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
  • Composite positioning device and method for chassis foundation large-size component and FE end of multiple units
  • Composite positioning device and method for chassis foundation large-size component and FE end of multiple units
  • Composite positioning device and method for chassis foundation large-size component and FE end of multiple units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0065] Such as Figure 9As shown, the composite positioning device of the large part of the EMU underframe foundation and the FE end of the present invention includes the FE end positioning tool, the underframe centerline positioning tool 1 and the lateral tightening mechanism 2 in the middle of a plurality of side beams, and the FE end positioning tool is used for Clamping and positioning the FE end 11-3 of the underframe 11, the underframe centerline positioning tool 1 is used to locate the centerline of the underframe 11 in the length direction and the center of the underframe, and the lateral tightening mechanism 2 in the middle of multiple side beams is used for Position the middle part of the side beam 11-2 of the underframe 11; the centerline positioning tooling 1 of the underframe includes four positioning bases, and the four positioning bases are suc...

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 composite positioning device and method for a chassis foundation large-size component and an FE end of multiple units, and belongs to the field of assembly welding positioning auxiliary devices and application methods for chassis foundation large-size components and FE end components of multiple units. The composite positioning device comprises an FE end positioning tool, a chassis center line positioning tool and multiple boundary beam middle lateral tightening mechanisms, wherein the FE end positioning tool is used for clamping and positioning an FE end of a chassis, the chassis center line positioning tool is used for positioning a center line of the chassis in the length direction and the center of the chassis, and the boundary beam middle lateral tightening mechanisms are used for positioning the middles of boundary beams of the chassis. The FE end positioning tool of the composite positioning device can be modularly produced in batches, overhauling and maintenance are facilitated, production cost is reduced, the composite positioning device becomes a basis component of assembly line work, and a new subsequent process method of integrated machining after chassis assembly welding can become possible. The subsequent new method can effectively guarantee chassis geometric sizes and is beneficial to improving the product manufacturing precision and forming quality.

Description

technical field [0001] The invention belongs to the field of assembly welding positioning aids for large parts of the underframe foundation and FE end parts of an EMU and a method for using the same, and specifically relates to a combined positioning device and method for a large part of the underframe foundation of an EMU and an FE end. Background technique [0002] Such as Figure 1 to Figure 4 As shown, the head car underframe 11 of the existing Chinese standardized EMU train is a large part assembled and welded as a whole tens of meters long, and the underframe 11 includes a floor 11-1, two side beams 11-2, FE (underframe front end; bottom frame front end) end 11-3 and end bottom frame 11-4, two side beams 11-2 are symmetrical to each other, and its front end is provided with side beam inner curved arc section 11-2-1. [0003] Such as Figure 6 a and Figure 6 As shown in b, the end chassis 11-4 includes the long cover plate 11-4-1 of the end chassis and the short cove...

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): B23K37/04B23K37/00
CPCB23K37/00B23K37/0443
Inventor 王世君王永亮李香子
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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