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How to choose a hydraulic sheet metal bending machine
In the application of sheet metal bending machines, attention should be paid to these aspects. The blade of the shearing machine is a widely used cutting tool in sheet metal cutting and processing. It can cut steel plates of various thicknesses and is suitable for various metal material manufacturing and processing industries. At present, commonly used shearing machine blades are divided into mechanical, hydraulic brake, and swing types. The hydraulic gate type shearing machine blade is currently the most widely used tool, which can cut steel plates with a thickness of less than 12mm. Due to the hydraulic transmission of the machine tool, it can perform single or continuous metal cutting. As the hydraulic swing shearing machine moves in a circular arc, and the production of circular arc shearing machine blades is quite difficult, ordinary shearing machine blades are generally used as shim compensation to ensure the precision of cutting.
At present, the precision of many hydraulic machine tools is not good, and the cut sheet metal is not ideal. It is only because the general cutting tools are rectangular, and the replaced shearing machine blades are made into sharp angles, so the force on the blades can be evenly distributed and the blade damage is relatively small. When operating the shearing machine, the gap between the blades of the shearing machine should be adjusted according to the specified thickness of the shearing machine. At the same time, when cutting two different specifications and materials of the board, the gap between the blades of the shearing machine should be adjusted to ensure the quality of the cutting. At the same time, when cutting the sheet metal, it is not allowed to stack and cut it. The surface of the cut sheet metal should be flat, and it is not allowed to cut narrow sheets that cannot be compressed tightly.
The sheet metal bending machine includes a bracket, a worktable, and a clamping plate. When in use, the coil is energized by a wire, which generates an attractive force on the pressing plate, thereby achieving the clamping of the thin plate between the pressing plate and the base. Due to the use of electromagnetic force clamping, the pressure plate can be made into various workpiece requirements, and can also process workpieces with side walls, making the operation very simple.
This product uses the equipped mold (universal or specialized mold) to bend metal sheets in a cold state into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing, widely used in sheet metal bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, railway vehicles, etc.
The precautions for using a CNC sheet metal bending machine are as follows:
1. Strictly follow the safety operation procedures for machine tool workers and wear labor protection equipment according to regulations
2. Before starting, it is necessary to carefully check whether the motor, switch, circuit, and grounding are normal and secure, and check that all operating parts and buttons of the equipment are stuck in the correct position.
3. Check the overlap and firmness of the upper and lower molds; Check whether each positioning device meets the requirements for processing.
4. When the skateboard and all positioning axes are not at the origin, run the return to origin program.
5. After the equipment is started, it should be run for 1-2 minutes by air, and the skateboard should be fully loaded 2-3 times. If any abnormal sound or malfunction is found, the vehicle should be stopped immediately, the fault should be eliminated, and everything should be normal before it can work.
6. During work, one person should be responsible for unified command, ensuring close cooperation between the operator and the feeding and pressing personnel, and ensuring that all cooperating personnel are in a safe position before issuing the bending signal.
7. Adjust the slider stroke and select the upper and lower molds and bending pressure based on the thickness, shape and size of the bent sheet metal. When selecting the size of the lower die and checking the bending force of the workpiece, it is necessary to refer to the bending force table on the right side of the machine tool. The working bending force should not exceed the nominal force.
8. When adjusting the gap between the upper and lower molds, the slider must stop at the top dead center. The gap must be adjusted from large to small. The initial adjustment of the gap between the upper and lower molds can generally be about 1 millimeter larger than the plate thickness. The gap must be greater than the plate thickness to avoid damaging the mold due to the absence of gaps.
9. When two or more people are bending, one person should be designated to step on the brake, and the power should be cut off when leaving the CNC sheet metal bending machine.
10. Do not stack debris and measuring tools between the upper and lower molds, and do not perform single-sided or single point load work.