Capacitor thickness detection and crack feedback plate bending machine based on PLC

Abstract

The invention relates to a capacitor thickness detection and crack feedback plate bending machine based on a PLC. The capacitor thickness detection and crack feedback plate bending machine comprises a driving motor, a clamping fixing base and a PLC host machine for controlling the driving motor. A bending shaft is installed on a motor shaft of the driving motor, and a machined piece is arranged on the clamping fixing base. The capacitor thickness detection and crack feedback plate bending machine further comprises a capacitor induction thickness detector installed on a machine frame, a pressure sensor arranged on the lateral side of a clamping groove of the clamping fixing base, a detection feedback device and a controller connected with the PLC host machine. The detection feedback device comprises an ultrasonic crack detector arranged on the clamping fixing base. The capacitor induction thickness detector, the ultrasonic crack detector and the pressure sensor are connected with the PLC host machine through a DSP module. The invention further provides a bending method. According to the capacitor thickness detection and crack feedback plate bending machine and method, sectioned machining is controlled through the PLC, the machined piece is bent at the most proper rotating speed, influences of the excessively-high or excessively-low rotating speed on the machined piece are avoided, bending cracks are reduced, and the machining quality is improved.

Description

technical field [0001] The invention relates to the field of mechanical processing equipment, in particular to bending equipment for sheet metal parts. Background technique [0002] The currently used sheet metal bending machines are commonly used in two types: mechanical and hydraulic. Mechanical bending machines use motors to move up and down through a series of gears and eccentric wheels. The hydraulic bending machine is realized by using a hydraulic cylinder and a complete set of oil circuit control components. These bending machines play an important role in the mass production of large enterprises, but their popularity is limited due to their high price and complex structure. With the development of the commodity economy, there are more and more stamping parts for small commodities for daily use. Small enterprises and even self-employed households urgently need sheet metal bending machines with low price and simple structure. [0003] At present, some small bending m...

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Problems solved by technology

[0003] At present, some small bending machines have appeared on the market, which can realize simple bending processing of plates, but they have the following disadvantages: the bending speed is set by the experience of workers during work, and cannot be adjusted in real time according to the thickness of the plate, and the quality of plate processing is not good. High, there are crack defects in the bent plate; the bent plate can only be detected by naked eyes, the detection is not accurate, and the effect is not good; the processed parts are clamped by manual adjustment, and the clamping force is often too large or too small, resulting in The workpiece to be processed is loose or the deformation of the clamping part is too large during bending

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