Electric displacement setting-out device and lofting method of heteromorphic spiral body intersecting line

Abstract

The invention relates to an electric displacement setting-out device and a lofting method of a heteromorphic spiral body intersecting line. The electric displacement scoring device comprises a screw rod sliding platform and one or more setting-out mechanisms mounted on the screw rod sliding platform, wherein the screw rod slipway is used for driving the setting-out mechanism to move and score according to displacement information; each setting-out mechanism adopts a self-adapting control structure, and comprises a bottom plate, a bracket, a fixing rod, a rod sleeve, a spring and a pen head; each bracket is vertically mounted at one end of the corresponding bottom plate; each fixing rod is horizontally mounted at the upper end of the corresponding bracket; each rod sleeve is arranged on thecorresponding fixing rod in a sleeving manner; each pen head is mounted at the front end of the corresponding rod sleeve; and each spring is arranged between the corresponding rod sleeve and the corresponding bracket, and is arranged on the corresponding fixing rod in a sleeving manner. The method disclosed by the invention adopts the setting-out device for lofting, so that the problems of a conventional two-dimensional three-view setting-out method is tedious in steps, and requirements for space imagination capacity and orthographic view reading level of constructors are high, are avoided, and the problems that when an intersecting line of a large-diameter circular pipe placed on a positioner is lofted, avoiding the positioner is needed, and during section relay lofting on the surface ofthe circular pipe, positioning is easy to be inaccurate, and the construction and the mounting accuracy are influenced, are solved.

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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