Sheet metal bending device based on clamping and positioning and feedback bending

Abstract

The invention relates to a sheet metal bending device based on clamping and positioning and feedback bending. The device comprises a drive motor on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the drive motor, and a machined part is arranged on the clamping and fixing base. The device further comprises an ultrasonic thickness detector, an ultrasonic crack detector, a pressure sensor, a rolling shaft and a controller connected with the main machine. The ultrasonic thickness detector, the ultrasonic crack detector and the pressure sensor are connected with the main machine through a DSP data processing module. Staged bending and feedback control are combined, the quantity of cracks is greatly reduced, and machining quality is improved. The rolling shaft is arranged to extrude and rub with the inner concave face of the machined part, protruding burrs and the cracks are effectively removed, and the subsequent machining process is omitted. By means of the pressure sensor, clamping pressure and positioning are controlled, plates are prevented from deforming or disengaging, 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. ...

AI Technical Summary

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 of the sheet material, further processing is required, resulting in a long processing cycle; the processed parts are clamped by manual adjustment, and the clamping force is often too large or too small, resulting in loosening of the processed parts during bending Or the deformation of the clamping place is too large; lack of positioning and bending angle control devices, prone to deviation, empty folding and excessive bending, posing safety hazards

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