Before operating a CNC bending machine, we first need to understand its components. The overall structure of a CNC bending machine is mainly divided into three indispensable parts: the bracket, the clamping plate, and the workbench. During use, we must ensure that all three parts are in good condition before proceeding with operation.
The operating principle of a CNC bending machine is as follows: when the wire and coil are energized, they generate an attractive force on the pressure plate. Once this attractive force is generated, the pressure plate and the base can clamp the material together, thereby realizing the bending of the sheet metal. The specific operation tutorial is as follows:
The first step to using a CNC bending machine is to power it on:
- Turn on the power switch on the machine’s control panel;
- Then start the oil pump. If you hear the oil pump running, it indicates the machine is in normal condition;
- At this point, do not perform any other operations—let the oil pump run idly for approximately 80 seconds.
The second step is to test the machine and adjust the stroke. The specific operation is: when the upper die moves down to its lowest position, a gap equal to the thickness of the sheet metal must be reserved. This step is crucial to ensure the normal operation of the bending machine and extend its service life, so it must not be overlooked.
In this step, select the thickness of the material to be bent and the size of the notch, and set the program according to actual standards. Within industry standards, the size of the notch is determined by the thickness of the sheet metal: normally, the width of the notch should be 8 times the thickness of the sheet. For example, if bending a 3mm-thick sheet, a 24mm notch should be selected—the calculation is very simple.
This step mainly involves confirming the position and alignment of the back gauge to ensure it can work properly.
After completing the above preparation and testing work, you can step on the switch to start bending the sheet metal. It should be noted that the pedal of the bending machine can be released at any time, following a simple principle: step on the pedal to start operation, and release it to stop.
