Bending device and method based on rolling bending and torque controlling

Abstract

The invention relates to a bending device and method based on rolling bending and torque controlling. The bending device comprises a driving motor, a clamping fixing seat and a host which are installed on a rack; a bending shaft is installed on the driving motor, and a work piece is arranged on the clamping fixing seat; the bending device further comprises an X-ray thickness detector which is installed on the rack through a support, and a proximity switch, a first pressure sensor, a second pressure sensor and a roller which are installed on the clamping fixing seat; the first pressure sensor and the second pressure sensor are located on the side face and the bottom face of the work piece respectively, and the roller is located on the concave face side of the work piece. According to the bending device and method, the pressure sensors are adopted to control the clamping force, and therefore excessive deformation and looseness of sheet metal are avoided; bending is performed with the most suitable torque, and therefore the machining quality is improved; the proximity switch is arranged to automatically control the bending angel, and therefore excessive bending is prevented; the inner concave face of the work piece is rolled by the roller, and therefore cracks and burrs at the concave face are decreased.

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, there are some small bending machines on the market. When working, the bending torque is set by the experience of the workers. It cannot be adjusted in real time according to the thickness of the sheet. The processing quality of the sheet is not high. When the bending torque is not suitable, there are cracks in the sheet after bending. Defects; lack of angle control device, prone to excessive bending, and potential safety hazards; after bending, the concave plate material needs further processing due to cracks and burrs due to extrusion, resulting in a long processing cycle; according to experience, clamping is Processed parts have the defects of excessive deformation caused by excessive clamping force and looseness caused by too small clamping force; lack of sheet positioning structure, defects of bending offset and empty bending

Images