Bending machine structure

The bending machine is an important equipment for bending and forming the workpiece in the sheet metal industry. Its function is to press the steel plate into various shapes according to the process requirements. As shown in the figure, the hydraulic sheet bending machine is mainly composed of left and right columns, workbench and beam. The left and right cylinders are fixed on the column. The slider is connected with the piston of the cylinder and along the guide rail fixed on the column. Movement, the lower mold is fixed on the workbench, the upper mold is installed at the lower end of the slider, the hydraulic system provides power, and the electric system gives instructions. Under the action of the oil cylinder, the slider drives the upper mold to the lower mold and the lower mold to realize the folding of the sheet material. 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 sum of the weights of the three large parts accounts for 70%~80% of the total weight of a bending machine. Its strength and rigidity directly determine the running accuracy, service life of the machine and the accuracy of the workpiece.


1. Slider part: hydraulic drive is adopted, and the slider part is composed of slider, oil cylinder and mechanical stop fine adjustment structure. The left and right cylinders are fixed on the frame, and the piston (rod) is driven by the hydraulic pressure to move the slider up and down, and the mechanical stop is controlled by the numerical control system to adjust the value;
2, the workbench part: operated by the button box, so that the motor drives the material rack to move back and forth, and the distance controlled by the numerical control system is controlled, the minimum reading is 0.01 mm (the front and rear positions have the limit of the travel switch);
3. Synchronous system: The machine consists of a mechanical synchronizing mechanism consisting of a torsion shaft, a swing arm and a joint bearing. The structure is simple, the performance is stable and reliable, and the synchronization precision is high. The mechanical stop is regulated by the motor and the numerical control system controls the value;
4, the material blocking mechanism: the material is driven by the motor, and the two screw rods move synchronously through the chain operation, and the numerical control system controls the size of the material.