Laser welding flexible jig suitable for trial manufacturing new car models or producing car bodies in white in limited quantities

A laser welding and flexible fixture technology, applied in the field of mechanical engineering, can solve the problems of unchanged installation position, decreased efficiency, and increased body manufacturing costs, and achieves the effect of avoiding fixture design and manufacturing, reducing production sites, and reducing costs.

Inactive Publication Date: 2010-02-24
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main change of the car model comes from the change of the appearance. The body-in-white is composed of hundreds of parts with different shapes. The position of the jig of the production line cannot be adjusted (for example, it cannot be adjusted in height, left and right, and front and rear), so a new set of jigs must be redesigned, which leads to an increase in body manufacturing costs and a decrease in efficiency. R&D cycle

Method used

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  • Laser welding flexible jig suitable for trial manufacturing new car models or producing car bodies in white in limited quantities
  • Laser welding flexible jig suitable for trial manufacturing new car models or producing car bodies in white in limited quantities
  • Laser welding flexible jig suitable for trial manufacturing new car models or producing car bodies in white in limited quantities

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Experimental program
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Effect test

Embodiment 1

[0014] Wherein the horizontal adjustment member 41 is a flat plate with an elongated hole or an elongated groove, and the shape and structure of the vertical adjustment member 42 can be different, such as Figure 1-Figure 3 The horizontal adjuster 41 used under the shown clamping mechanism and the horizontal adjuster 41 used under the positioning mechanism are all flat plates with U-shaped grooves, but their vertical adjusters 42 are different. The vertical adjuster 42 used under the clamping mechanism Straight adjusting part 42 is mainly made up of an internal thread sleeve 43 and a screw rod 44, and internal thread sleeve 43 is fixedly connected on the horizontal adjusting part 41, and one end of screw rod 44 is connected with clamping mechanism 2, and the other end is connected with internal thread sleeve 43 ( See figure 1 and figure 2 ), the adjustment accuracy of this vertical adjustment member is high, but the adjustment speed is relatively slow. The vertical adjuster...

Embodiment 2

[0017] The clamping mechanism and positioning mechanism of the present invention can be required by different stations, and their shapes may be different, such as Figure 4 The illustration exemplifies another kind of clamping mechanism, which is a clamping mechanism required by another step in the welding process of the car body, although the shape is the same as figure 2 The clamping mechanism shown has a different shape, but can still be used figure 2 or image 3 Adjustment seat shown.

[0018] When the present invention is in use, take welding a car door as an example. When welding a car door of a certain model, the clamping mechanism 2, positioning mechanism 3 and adjustment seat 4 required by each station can be installed on the base 1, and these clamping The mechanism clamps the car door, and the positioning mechanism positions the car door. The position of the clamping mechanism in the two directions vertical to the horizontal plane can be adjusted by adjusting the...

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Abstract

The invention discloses a laser welding flexible jig suitable for trial manufacturing new car models and producing car bodies in white in limited quantities, comprising an abutment, a clamping mechanism and a positioning mechanism, wherein, the clamping mechanism and the positioning mechanism are installed on the abutment in the mode of three-dimensional adjusting respectively by an adjusting seat; the abutment is provided with a group hole base panel; the adjusting seat is composed of a horizontal adjusting piece and a vertical adjusting piece, wherein, the horizontal adjusting piece adjustshorizontal displacement, the vertical adjusting piece adjusts vertical displacement, the vertical adjusting piece is connected with the horizontal adjusting piece, and the horizontal adjusting piece is movably arranged on the group hole base panel. In the using process, the invention ensures that the whole car body is welded on one abutment, which not only greatly reduces production fields but also avoids great amounts of jig design and manufacturing, so that the developing cost of novel test cars and individual cars is lowered, and the cost of producing cars in limited quantities is lowered.

Description

technical field [0001] The invention relates to a flexible fixture for laser welding of a body-in-white suitable for trial production or small-batch production of new vehicle models, and belongs to the field of mechanical engineering. Background technique [0002] With the rapid development of the automobile manufacturing industry, the replacement cycle of automobiles is getting shorter and shorter, and there are more and more models of similar products. The main change of the car model comes from the change of the appearance. The body-in-white is composed of hundreds of parts with different shapes. The position of the jig of the production line cannot be adjusted (for example, it cannot be adjusted in height, left and right, and front and rear), so a new set of jigs must be redesigned, which leads to an increase in body manufacturing costs and a decrease in efficiency. development cycle. How to reduce costs and adapt to the development trend of small batch, multi-variety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/42B23K26/70
Inventor 陈根余王祖建李时春张明军曾利成刘旭飞
Owner HUNAN UNIV
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