CNC press brakes are essential machines in the metalworking industry, used to bend sheet metal into various shapes. Proper input and management of system parameters are crucial for ensuring the machine operates correctly and efficiently. This article provides a detailed guide on how to input system passwords, calculate the static force for bending, and adjust parameters on a CNC press brake, specifically focusing on systems like the e22 and Fanuc 0.
How to Input the System Password?
System passwords protect the CNC press brake's system and data from unauthorized access. Here’s how you can input the system password:
Steps to Input the System Password
1. Turn on the Machine: Connect the power supply and turn on the key switch on the control panel.
2. Enter BIOS Settings:
- During startup, press the `F2` or `Delete` key to enter the BIOS settings interface.
3. Navigate to Security Options:
- Locate the `Security` or `Password` option in the BIOS menu.
4. Input the Correct Password: Enter the correct password to access or change settings.
Important Notes:
- Ensure the password is case-sensitive and correct to prevent system malfunctions.
- For security, regularly change the password and avoid using easy-to-guess passwords.
How to Calculate the Static Force for Bending?
Calculating the static force required for bending metal sheets is crucial for setting the correct parameters on the press brake.
Static Force Calculation Formula
Use the formula to calculate the static bending force required for a specific material and thickness:
\[
F = \frac{1.42 \times L \times T^2 \times UTS}{V}
\]
Where:
- \( F \) = Bending force (tons)
- \( L \) = Length of the bend (meters)
- \( T \) = Thickness of the material (mm)
- \( UTS \) = Ultimate tensile strength of the material (MPa)
- \( V \) = Die opening (mm)
How to Adjust Parameters on an e22 Press Brake System?
Once the static force is calculated, you can adjust the parameters on the e22 press brake system.
Steps to Adjust Parameters on e22 System
1. Turn on the Machine: Connect the power supply and turn on the key switch on the control panel.
2. Access Parameter Settings:
- On the management panel, press the appropriate keys to navigate to the parameter settings.
3. Input and Adjust Parameters:
- Enter the calculated values and other required parameters into the system.
- Make adjustments as needed to ensure the system operates correctly.
How to Display and Adjust Parameters on a Fanuc 0 System?
The Fanuc 0 system is widely used in CNC machines, including press brakes. Here’s how you can display and adjust parameters on this system.
Steps to Display and Adjust Parameters
1. Access Parameter Page:
- Press the `DGONOS/PARAM` key on the system's operation panel. If the DGNOS page appears, press the `DGONOS/PARAM` key again or use the soft operation key `PARAM` at the bottom of the CRT screen.
2. Enter MDI Mode:
- Press the `MDI` key on the machine's operation panel to enter MDI mode.
3. Navigate to Parameter Page:
- Press the `F/No.` key, followed by `0` and `INPUT` to bring up the page with parameter 0.
- Press the `PAGE` key until the screen displays `PWE=0`. Set `PWE` to `1`, which will trigger a `P/S100` alarm.
4. Enter Parameter Number:
- Use the numeric keys to enter the desired parameter number and press `INPUT`.
5. Adjust Parameter Value:
- Enter the new value for the parameter using the numeric keys and press `INPUT`. The value on the screen should change to the new setting.
6. Finalize Changes:
- Press the `F/No.` key, followed by `0` and `INPUT` to return to the parameter 0 page.
- Press the `PAGE` key until `PWE=1` appears and set `PWE` to `0`.
- Press the `RESET` key to clear the `P/S100` alarm.
Note: If you have made changes to critical parameters, a `P/S100` alarm may reappear. In this case, turn off the NC power and then turn it back on. The alarm will disappear, and the new parameters will take effect.
Troubleshooting Common Issues
If you encounter issues with the home positioning or parameter adjustments, consider the following troubleshooting steps:
Home Positioning Faults
1. Check Deceleration Block:
- Ensure the deceleration block is securely fastened and positioned correctly.
2. Inspect Deceleration Switch:
- Verify that the deceleration switch is functioning properly and not damaged.
3. Examine Encoder or Scale:
- Check if the pulse encoder or optical scale is operating correctly.
Parameter Adjustment Faults
1. Incorrect Password Entry:
- Ensure the password is entered correctly, paying attention to case sensitivity.
2. Parameter Misconfiguration:
- Double-check the values entered for parameters to ensure they are correct and appropriate for the specific operation.
Conclusion
Properly managing system passwords and parameter settings on a CNC press brake is crucial for its safe and efficient operation. By following the detailed steps outlined in this guide, operators can ensure accurate parameter adjustments and secure access to the system. Regular maintenance and adherence to security protocols will help maintain the press brake's performance and longevity.
