Bending machine controlling torque adjustment and roll bending through PLC and method

Abstract

The invention relates to a bending machine controlling torque adjustment and roll bending through a PLC and a method. The bending machine comprises a driving motor, a clamping-fixing seat and a PLC mainframe, wherein the driving motor, the clamping-fixing seat and the PLC mainframe are arranged on a machine frame, a bending shaft is installed on the driving motor, and a machined part is arranged on the clamping-fixing seat. The bending machine further comprises a capacitive sensing thickness detector installed on the machine frame through a support, a proximity switch installed on the clamping-fixing seat, a pressure sensor and a rolling shaft, wherein the rolling shaft is connected to the upper end face of an adjusting plate, and the lower end face of the adjusting plate is installed in an installing groove formed in the clamping-fixing seat by means of a rotary shaft and a spring. The bending machine adopts the pressure sensor to control clamping force, and excessive deformation and looseness of boards are avoided. Bending is performed by utilizing most suitable torque, and machining quality is improved. The bending machine automatically controls a bending angle through the arranged proximity switch and prevents excessive bending. The inner concave face of the machined part is rolled through the rolling shaft, and cracks and burrs at the position of the concave face are decreased.

Description

technical field [0001] The invention relates to the technical field of automatic sheet metal processing, in particular to a PLC-controlled sheet metal torque adjustment and roll bending bending machine and a bending processing method. Background technique [0002] Currently used sheet metal sheet metal bending machines are commonly used in two types: mechanical and hydraulic. Mechanical bending machines use motors to move up and down through a series of gears and eccentric wheels. The hydraulic bending machine is realized by using a hydraulic cylinder and a complete set of oil circuit control components. These sheet metal bending machines play an important role in the mass production of large enterprises, but their popularity is limited due to their high price and complex structure. [0003] With the development of the commodity economy, there are more and more stamping parts of various hardware daily commodities. Small enterprises and even self-employed households are in u...

AI Technical Summary

Problems solved by technology

[0004] At present, there are some small bending machines on the market. When working, the bending torque is set by the experience of the workers, which cannot be adjusted in real time according to the thickness of the sheet. The processing quality of the sheet is not high, and there are cracks in the sheet after bending when the bending torque is not suitable. 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 The workpiece has the defects of excessive deformation caused by excessive clamping force and loosening caused by too small clamping force

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