A gap-seeking sensor

Abstract

A joint seeking sensor comprises a CPU (Central Processing Unit) and a light transmitter and an optical receiver which are respectively arranged on two sides of a flake workpiece and mutually corresponding; the optical receiver comprises a plurality of photoelectric tubes which are arranged along a straight line which is perpendicular to a workpiece joint; an output end of every photoelectric tube is connected with an input port of the CPU through a signal conditioning unit; a casing of the optical receiver is fixed on a floating base of machining equipment through a receiver support; the CPU transmits shifted signals of a machining point to a controller of the machining equipment through an I / O (Input / Output) port. According to the joint seeking sensor, positions of flake workpiece joints are detected through the plurality of photoelectric tubes which are arranged along the straight line inside the optical receiver and then the offset direction of the machining point is obtained. The joint seeking sensor not only has high detection speed, can accurately detect the joint positions when the workpiece joint is mispositioned due to the fact that the optical receiver has a wide detection range and accordingly substantially improves the equipment machining efficiency and the machining quality.

Description

technical field [0001] The invention relates to a sensor capable of quickly and accurately detecting the seam position in the middle of a sheet-shaped workpiece (such as a steel plate, cloth, etc.), and belongs to the technical field of detection. Background technique [0002] During the processing of sheet workpieces, production equipment is often required to perform processing operations along the joints of the workpieces. For example, in the tailor welding process of steel plates, the welding torch is welded along the seams of the plates; another example is a large towel blank (such as image 3 Shown) during the splitting process, the blade cuts along the longitudinal slit and the transverse slit. During the processing of such workpieces, the controller of the production equipment uses the gap-seeking sensor to monitor the offset direction of the processing point relative to the workpiece joint in real time, and then realizes automatic gap-seeking by controlling the later...

AI Technical Summary

Problems solved by technology

The disadvantage of this gap-seeking sensor is that the speed of finding the seam is too slow, which affects the production efficiency of the equipment

Another example is that the slitting equipment for large towel blanks generally uses a C-type optical fiber sensor to detect the position of the slitting seam, and then obtains the offset direction of the blade. Since the detection range of the C-type optical fiber sensor is small and the size of the towel is uncontrollable, when When the longitudinal slit of the towel blank is misaligned at the transverse slit (longitudinal joint), the C-type optical fiber sensor cannot detect the position of the longitudinal slit after passing the joint, resulting in the inability to carry out the cutting operation smoothly

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