Bending machine and its bending processing method based on PLC-based X-ray thickness detection and bending speed adjustment

Abstract

The invention relates to an X-ray thickness detection and bending speed adjusting bending machine based on a PLC. The X-ray thickness detection and bending speed adjusting bending machine comprises a driving motor, a clamping fixing base, a main machine as well as an X-ray thickness detector, a first pressure sensor, a second pressure sensor and a detection feedback device, wherein the driving motor is arranged on a rack; the main machine is used for controlling the driving motor; a bending shaft is mounted on a motor shaft of the driving motor; a processed workpiece is arranged on the clamping fixing base; the X-ray thickness detector is mounted on the rack through a first bracket; the first pressure sensor and the second pressure sensor are arranged on the clamping fixing base; the detection feedback device comprises an ultrasonic crack detector which is arranged on the clamping fixing base through a second bracket. The invention further provides a bending processing method adopting the bending machine. Due to PLC controlled sectional processing and positioning detection, the phenomenon of bending deviation or bending omission can be avoided, and the processing reliability can be improved; the processed workpiece can be bent according to most appropriate torque, so that the processed workpiece is prevented from being affected by too large or too small torque, bending cracks can be reduced, and the processing quality can be improved.

Description

technical field [0001] The invention relates to the field of mechanical processing equipment, in particular to bending equipment. 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 machines have appeared ...

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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 torque 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 not often too large or too small Causes the workpiece to be processed to be loose during bending or the deformation of the clamping part is too large; the lack of positioning device is prone to empty bending or bending deviation

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