The structure of the bending machine

by:JPSK     2021-06-09
The bending machine is an important equipment for the bending and forming of workpieces in the sheet metal industry. Its function is to press the steel plate into parts of various shapes according to the process requirements. As shown in the figure, it is a schematic diagram of the structure of a hydraulic sheet metal bending machine. The frame is mainly composed of left and right columns, workbenches, and beams. The left and right oil cylinders are fixed on the column, and the slider is connected with the piston of the oil cylinder and goes up and down along the guide rail fixed on the column. Movement, the lower mold is fixed on the worktable, the upper mold is installed at the lower end of the slider, the hydraulic system provides power, and the electrical system gives instructions. Under the action of the oil cylinder, the slider drives the upper mold downwards and closes the lower mold to realize the folding of the sheet. bend. The left and right columns, workbench and slider (hereinafter referred to as the three major parts) are the key parts of the bending machine. The total weight of the three major parts accounts for 70% to 80% of the total weight of a bending machine. Its strength and rigidity directly determine the operating accuracy, service life, and workpiece accuracy of the machine tool. 1. Slider part: hydraulic transmission is adopted, and the slider part is composed of a slider, an oil cylinder and a fine-tuning structure of a mechanical stopper. The left and right oil cylinders are fixed on the frame, and the piston (rod) drives the slider to move up and down through hydraulic pressure, and the mechanical stop is controlled by the numerical control system to adjust the value; 2. The workbench part: controlled by the button box, the motor drives the stopper to move forward and backward , And the distance of movement is controlled by the numerical control system (the front and rear positions are limited by the travel switch); 3. Synchronization system: the machine is composed of a torsion shaft, swing arm, joint bearing, etc., with a mechanical synchronization mechanism, simple structure, stable and reliable performance, High synchronization accuracy. The mechanical stop is adjusted by the motor, and the numerical control system controls the value; 4. The stopper mechanism: the stopper is driven by the motor, and the two screw rods are driven to move synchronously through the chain operation. The CNC system controls the size of the stopper.
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