Sheet metal bending system and method with angle regulating and controlling function and phased bending function

Abstract

The invention relates to a sheet metal bending system and method with the angle regulating and controlling function and the phased bending function. The system comprises a driving motor arranged on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the driving motor. A machined workpiece is installed on the clamping and fixing base. The system further comprises an ultrasonic thickness detector, an ultrasonic crack detector, a pressure sensor, a rolling shaft, a proximity switch and a controller connected with the main machine. The ultrasonic thickness detector, the ultrasonic crack detector, the pressure sensor and the proximity switch all connected with the main machine through a DSP data processing module. According to the system, the quantity of cracks is greatly reduced through combination of phased bending and feedback control. The rolling shaft is arranged to perform extrusion and friction on the inwards-concave face of the machined workpiece, and protruding burrs and the cracks are effectively removed. The proximity switch is used for controlling the bending angle so that excessive bending can be avoided. The clamping force is controlled through the pressure sensor, a plate is prevented from deforming or falling off, and machining reliability is improved.

Description

technical field [0001] The invention relates to the technical field of sheet metal processing, in particular to a sheet metal bending device. Background technique [0002] Currently used sheet metal bending machine, commonly used two types of organic pillow hydraulic, mechanical bending machine is to use the motor through a series of gear transmission and eccentric wheel to realize the up and down movement of the working joint. 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 due to their high price and complex structure, their popularization is limited. 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. ...

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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 with the thickness of the plate, and a constant The bending force cannot change with the change of the bending angle. The processing quality of the sheet is not high, and there are cracks in the sheet after bending; the sheet after bending can only be detected by naked eyes, which is not accurate and the effect is not good; Afterwards, due to cracks and burrs on the concave surface due to extrusion, further processing is required, resulting in a long processing cycle; the lack of angle control devices is prone to excessive bending, which poses a safety hazard; the workpiece to be processed is manually adjusted and clamped. The holding force is often too large or too small, resulting in the loosening of the workpiece or excessive deformation of the clamping part during bending

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