Photoelectric tracking detecting mechanism for cold frame bending machine

Abstract

The invention discloses a photoelectric tracking detecting mechanism for a cold frame bending machine or a sectional bar forming machine. The photoelectric tracking detecting mechanism is characterized by comprising feeler levers, a cross rod connected with the feeler levers through hinges, a trolley, and a photoelectric tracker; the ends of the feeler levers abut against the detected edge of machined structural steel all the time, the moving track of the trolley is parallel to the feeler levers, and the end of the machined structural steel is connected with the trolley through a mechanical clamping arm and a hinge; and a sign is arranged on the side, facing the cross rod, of the trolley to serve as the target of photoelectric tracking, and the photoelectric tracker is arranged at the hinge axis of the feeler levers and the cross rod to track the target. The photoelectric tracking detecting mechanism can continuously, immediately and accurately feed back the deflection angle and the length displacement variable of the measured structural steel part and a relative reference point in a photoelectric tracking manner, and an effective supporting condition is provided for digital structural steel machining. The photoelectric tracking detecting mechanism is used for digitally controlling the whole process of cold frame bending.

Description

technical field [0001] The invention relates to a photoelectric tracking detection mechanism for a rib cold bending machine or a profile forming machine. The mechanism provides a detection device that can immediately reflect the bending deformation parameter value of the section steel when the cold bending machine is working. Provide technical support for digital control section steel processing. Background technique [0002] The ship's rib curve is composed of various spline curves with different curvatures. Numerically controlled rib cold bending machine processes and bends various types and specifications of steel according to the spline curve in the way of digital control to become the hull rib. How to measure the parameters of the steel deformation, and then control the parameters, has become the key to the CNC rib cold bending machine. Moreover, the main control parameter of rib cold bending is in the force-deformed part, generally in the middle of the bending die w...

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Problems solved by technology

[0004] In the previous rib cold bending method, whether it is the spline profiling method or the inverse straight line method, it is difficult to achieve continuous on-line control through visual inspection and intermittent alternating processes.

In addition, within the plane range of 15M×12M, the change value of angular deflection and length displacement between two moving point positions is reflected at the same time. In the past, steel wire traction was used as an intermediate, and the steel wire often broke, and the steel wire hindered the on-site operation. Inconvenient situations that damage the stability of the machine and hinder the normal operation of the whole machine

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