Sheet metal bending system and method with detection feedback function and clamping control function

Abstract

The invention relates to a sheet metal bending system and method with the detection feedback function and the clamping control 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 a capacitance induction thickness detector, a rolling shaft, a proximity switch, a pressure sensor, a detection feedback device and a controller. The rolling shaft and the proximity switch are installed on the bending side of the machined workpiece. The detection feedback device comprises an ultrasonic crack detector installed on the clamping and fixing base. The capacitance induction thickness detector, the proximity switch, the pressure sensor and ultrasonic crack detector are all connected with the main machine through a DSP data processing module. According to the system, bending is performed through combination of crack detection and extrusion and friction of the rolling shaft, the quantity of cracks is greatly reduced, and machining quality is improved. The proximity switch is arranged to automatically control the bending angle, and excessive bending is prevented. The pressure sensor is used for controlling clamping pressure, and a plate is prevented from deforming or getting loose.

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 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 inaccurate and the effect is not good; the lack of angle control device is prone to excessive bending, and there are safety hazards; 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 part is too large

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