Machining device with multidirectional clamping pressure detection and ultrasonic crack detection feedback functions

Abstract

The invention relates to a machining device with multidirectional clamping pressure detection and ultrasonic crack detection feedback functions. The machining device comprises a drive motor arranged on a rack, a clamping and fixing base and a main machine. A bending shaft is arranged on the drive motor, and a workpiece to be machined is arranged on the clamping and fixing base. The machining device further comprises a capacitive sensing thickness detector, a pressure sensor, an approach switch, a detection feedback device and a controller. The pressure sensor and the approach switch are arranged on the bent side of the workpiece to be machined. The detection feedback device comprises an ultrasonic crack detector arranged on the clamping and fixing base. The capacitive sensing thickness detector, the pressure sensor, the approach switch and the ultrasonic crack detector are connected with the main machine through DSP data processing modules. According to the machining device, the clamping force is controlled through the pressure sensor, the crack proportion is greatly reduced through crack detection and graded bending, and the machining quality is improved; and by controlling the bending angle, excessive bending is prevented, and the use safety of the machining device 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 speed is set by the experience of workers during work, and it cannot be adjusted in real time according to 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 crack defects 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; The angle control device is prone to excessive bending, and there are also potential safety hazards; the workpiece is clamped by manual adjustment, and the clamping force is often too large or too small, resulting in loosening of the workpiece or excessive deformation of the clamping place during bending Big

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