Electric Displacement Line Drawing Device and Stakeout Method for Intersecting Lines of Helicoids

Abstract

The invention relates to an electric displacement line drawing device and a method for setting out intersecting lines of special-shaped spiral bodies. The device includes a screw slide table and at least one line drawing mechanism installed on the screw slide table. The animated line mechanism moves and draws lines; the line-drawing mechanism is an adaptive adjustment structure, including a bottom plate, bracket, fixed rod, rod sleeve, spring and pen head. One end of the bottom plate is vertically installed with a bracket, and the upper end of the bracket is horizontally installed with a fixed rod. A rod sleeve is set on the upper sleeve, the nib is installed on the front end of the rod sleeve, a spring is arranged between the rod sleeve and the bracket, and the spring is sleeved on the fixed rod. The method of the present invention adopts the device for lofting, which avoids the cumbersome steps of the conventional two-dimensional and three-view drawing method, and requires high spatial imagination ability and map recognition level of construction personnel, and avoids the large-diameter circular pipes placed on the rotating tire intersecting When setting out the line, it is necessary to avoid turning the tire. Segmentation and relay setting out on the surface of the round pipe will easily cause inaccurate positioning and affect the installation accuracy and construction.

Description

technical field [0001] The invention relates to the technical field of complex steel structure construction, in particular to an electric displacement line drawing device and a method for setting out intersecting lines of special-shaped spiral bodies. Background technique [0002] In the construction of steel structures, the intersection line of the surfaces of two spatial shapes is called the intersecting line. The shape design of the process steel structure special-shaped spiral gate has many joints between curved surfaces, positioning, blanking, rolling, and production are troublesome, and the precision requirements are relatively high. The stakeout method of the intersecting line of the special-shaped helix is ​​divided into stakeout on the plane and stakeout on the curved surface: [0003] (1) Stakeout on the plane: First, through the three views of the orthographic projection (front view, top view, left view Figure three basic view), divide the helix circumference in...

AI Technical Summary

Problems solved by technology

However, the process steel structure welding is usually placed on the rotating tire. The above-mentioned intersecting line expansion pattern plate lofting technology needs to avoid the rotating tire. Segmentation and relay lofting on the surface of the helical body will easily cause inaccurate positioning and affect the installation accuracy.

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