Electric displacement scriber and setting-out method of pipeline intersecting lines

Abstract

The invention relates to an electric displacement scriber and a setting-out method of pipeline intersecting lines. The electric displacement scriber comprises a screw rod sliding table and a scribingdevice installed on the screw rod sliding table, and the screw rod sliding table drives the scribing device to move and scribe according to displacement information; the scribing device comprises a support, a driving mechanism and a scribing mechanism; the driving mechanism and the scribing mechanism are installed on the support, and a cam is installed at the output end of the driving mechanism; and the scribing mechanism comprises a connecting rod, a driven base and a scribing end, the driven base and the scribing end are installed at the two ends of the connecting rod, the driven base alwaysmakes contact with the cam, and the scribing end is used for scribing on a round pipe. The electric displacement scriber is adopted for the setting-out method, the tedious steps of a conventional two-dimensional three-view drawing method and the requirements for high spatial imagination ability and high graph identification level of constructors are avoided, the setting-out requirement of the intersecting lines can be met when large pipelines are connected, meanwhile the setting-out requirement of intersecting lines of a special-shaped spiral steel structure can be satisfied, the setting-outprecision is guaranteed, the operation and labor difficulty is reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of complex steel structure construction, in particular to an electric displacement line marker and a method for setting out intersecting lines of pipelines. Background technique [0002] When multiple pipes are connected, the intersection line formed by the junction between the pipes is called the intersecting line. The usual way to stake out pipeline intersecting lines is as follows: first, through the three views of the orthographic projection (front view, top view, left view Figure three Divide the circumference of the pipe into several equal parts, and determine the actual length of the prime line at each equal part; then expand the circumference of the bottom surface of the pipe into a straight line, and draw each prime line at each corresponding equal point of the straight line. The actual length of the pipe is connected by a curve to the upper end point of each element line to obtain the expansion di...

AI Technical Summary

Problems solved by technology

[0003] The above method is more convenient for the construction of small-diameter pipes, but the welding of large-diameter pipes is usually placed on the rotating tire. The conventional intersecting line expansion pattern layout technology needs to avoid the rotating tire. Segmentation and relay lofting on the surface of the pipe may easily cause inaccurate positioning. Accuracy, affect the installation accuracy

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