Plate edge searching mechanism, cutting machine and plate edge searching method

Abstract

The invention relates to the technical field of cutting machines, and discloses a plate edge searching mechanism, a cutting machine and a plate edge searching method. The plate edge searching mechanism comprises a cross beam, a measuring assembly and a scanning assembly. The cross beam extends in the X-axis direction and can slide in the Y-axis direction. The measuring assembly comprises a sensor which is arranged on the cross beam in a sliding mode and used for measuring the deflection angle of the straight line edge of a plate relative to the Y-axis direction. The scanning assembly comprises an infrared light curtain movably arranged on the cross beam, and the infrared light curtain can rotate by a deflection angle so that the extending direction of the infrared light curtain can be perpendicular to the straight line edge of the plate. The infrared light curtain can synchronously move along with the cross beam in the Y-axis direction and slide along the cross beam at the same time, so that the projection of the infrared light curtain in the vertical direction completely falls onto the plate, and a cutting datum point on the curve edge of the plate is scanned. According to the plate edge searching mechanism, the cutting datum point on the curve edge of the plate can be quickly and accurately found, and the cutting efficiency and cutting quality of the plate are improved.

Description

technical field [0001] The invention belongs to the technical field of cutting machines, and in particular relates to a plate edge-seeking mechanism, a cutting machine and a plate edge-finding method. Background technique [0002] With the increase of labor and raw material costs year by year, production enterprises have put forward higher requirements for the operation method and operation efficiency of sheet metal cutting and blanking. [0003] Such as figure 1 As shown, a conventional metal plate, such as a rough-edged steel plate, generally includes two opposite straight edges 101 and two opposite curved edges 102 . When cutting blanks, it is necessary to find the innermost point on the curved edge 102 and use it as the cutting reference point P3. The cutting line 103 at the location of the cutting reference point P3 is perpendicular to the straight edge 101, so as to cut the rough-edged steel plate into regular steel plate products of different sizes and avoid curved ...

AI Technical Summary

Problems solved by technology

The manual selection method is time-consuming and labor-intensive, and the selection accuracy of the cutting reference point is low, resulting in poor product quality after cutting

Moreover, the position of the rough-edged steel plate on the cutting platform of the cutting machine is uncertain. When the cutting coordinates of the cutting machine are deflected, it will be very difficult for the operator to correct the cutting coordinates of the rough-edged steel plate, which further increases the difficulty of cutting and reduces the cutting efficiency

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