Large tubular structure piece platform scribing method

A technology for large cylinders and structural parts, which is applied in the field of platform marking of large cylindrical structural parts, can solve the problems of inability to operate on the installation site, and it is difficult to meet the high-precision installation requirements of large cylindrical structural parts, so as to reduce the difficulty of construction. Effect

Inactive Publication Date: 2005-03-02
中国船舶集团渤海造船有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Heavy equipment companies often manufacture super-large cylindrical structural parts with a length of more than ten meters and a weight of tens of tons with complex structures for various purposes. The marking work before assembly directly affects the quality of the installation of the whole machine. The traditional assembly work uses The marking method is to use tools such as stone pens, chalks, levels and rulers to draw lines on site, which is difficult to meet the high-precision installation requirements of large cylindrical structural parts
General scribing tools cannot be operated on the installation site, which requires a new scribing technology to adapt to it, that is, drawing on the platform scribing method to do the best simulated installation site scribing

Method used

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  • Large tubular structure piece platform scribing method
  • Large tubular structure piece platform scribing method
  • Large tubular structure piece platform scribing method

Examples

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Embodiment 1

[0022] This example is a typical large-scale cylindrical structural member, which is divided into an outer cylinder and an inner cylinder. For the structure of the outer cylinder, see figure 1 , the inner cylinder structure see Figure 7 .

[0023] Platform marking tool for large cylindrical structural members, figure 1 As shown, the platform 1 is 16200×4500mm, and the flatness is less than 0.2mm. The marking plate 3 is modified to increase the weight of the base of the marking plate, increase the height of the pillar, and install and weld two handles at the bottom of the pillar. The purpose is to Avoid shaking when marking as much as possible. Bending plate 2 and square box 4 are purchased by required size. Roller wheel 5 is a self-made special tool.

[0024] The method for scribing lines on a platform of a large cylindrical structural member includes the following process steps:

[0025] 1. Place the rotary tire 5 on the platform 1, adjust the distance between the two rot...

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Abstract

The platform scribing method for large tubular structure member includes fixed point lining method, ground sampling method, back measuring method and four point coplane method. The fixed point lining method for scribing in internal wall includes pointing long scriber held in scribing block to the inner wall of large tubular structure member, scribing with small scriber several points and lining these points. The ground sampling method is used to solve the problem of measuring overall size of large tubular member. The back measuring method and the four point coplane method are used in detecting and regulating the lines of the ground sampling method to obtain even high scribing precision. The present invention is used in scribing large tubular member in high precision and may be used in petroleum, metallurgy, ship making, military industry and other industry.

Description

(1) Technical field [0001] The invention relates to a scribing method before assembling a large cylindrical structural part and related parts. (2) Background technology [0002] Heavy equipment companies often manufacture super-large cylindrical structural parts with a length of more than ten meters and a weight of tens of tons with complex structures for various purposes. The marking work before assembly directly affects the quality of the installation of the whole machine. The traditional assembly work uses The marking method is to use tools such as stone pens, chalks, levels and rulers to draw lines on site, which is difficult to meet the high-precision installation requirements of large cylindrical structural parts. General scribing tools cannot be operated on the installation site, which requires a new scribing technology to adapt to it, that is, drawing on the platform scribing method to do the best simulated installation site scribing. (3) Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25H7/04
Inventor 盛维庆刘俊鹏
Owner 中国船舶集团渤海造船有限公司
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