Positioning system and positioning method for multi-station tube conveying transition vehicle on steel tube production line

Abstract

The invention discloses a positioning system and a positioning method for a multi-station tube conveying transition vehicle on a steel tube production line. The positioning system comprises a programmable controller connected with a transition vehicle low-speed running detection switch and a plurality of station detection approach switches. Each approach switch is in signal connection with a corresponding induction sheet, and one approach switch induction sheet is in signal connection with one station detection approach switch. Detection switch induction sheets and at least one approach switch induction sheet are installed at each station, and the transition vehicle low-speed running detection switch and the plurality of station detection approach switches are installed on the transition vehicle. By presetting codes of stations through the programmable controller, induction sheets induct the corresponding approach switches and generate a switching value signal level when working, and positioning park can be achieved when the switching value signal level coincides with the codes. The positioning system completely eliminates accumulated errors caused by positioning through an absolute coder of an existing positioning system and achieves accurate positioning of the tube conveying transition vehicle.

Description

technical field [0001] The invention belongs to the technical field of automatic control of mechanical processing equipment, and relates to a positioning system for a multi-station pipe-transporting vehicle for a steel pipe production line. The invention also relates to a method for using the positioning system to position the pipe transporting traverse vehicle. Background technique [0002] In the production line of large-diameter longitudinal submerged arc welded steel pipes, due to the complex pipe-making process and the large number of processing equipment, a steel plate needs to be processed by many stations from blank to qualified steel pipe. In order to improve production efficiency, a large number of waiting racks are arranged on the production site, and the steel pipes that are too late to be processed are placed on the waiting racks, which requires that the pipe transport truck can transport these steel pipes to each The processing station and the waiting platform...

AI Technical Summary

Problems solved by technology

In this positioning system, due to the influence of many aspects such as mechanical installation accuracy and control system accuracy, errors are easily generated

When the number of stations increases, the cumulative error will increase accordingly, resulting in inaccurate positioning, misoperation of the system, and great potential safety hazards for operators and equipment

On the other hand, the price of absolute encoder and high-speed counting module is relatively expensive, and the control system program is relatively complicated, which increases the cost of equipment and the workload of design and debugging personnel.

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