NC press brake is a type of press brake that uses a numerical control (NC) system to control the bending process. This makes it a more precise and efficient tool than traditional press brakes, and allows it to produce more complex parts.
Before starting the NC press brake with E21, several preparations need to be done to ensure the safe and normal operation of the hydraulic press brake. Here are some common preparations:
Securing the NC press brake
Placing and securing your new NC press brake is an important step in ensuring the safe and efficient use of the equipment. Here is a simple procedure to guide first-time users on how to properly position and secure a NC press brake:
- Select a suitable location: Choose a stable and stationary location to place the NC press brake. Ensure that the area has enough space for you to freely operate and maintain the equipment. Additionally, ensure proper ventilation in the surrounding environment to prevent overheating and machine malfunctions.
- Prepare a firm and stable ground: Ensure that the surface where the equipment will be placed is hard, flat, and stable. Prioritize concrete floors or metal surfaces as they provide better stability. If the ground is not sufficiently sturdy, consider adding a thick metal plate or wooden board as a foundation.
- Use shims and leveling bolts: Before placing the press brake, use shims and leveling bolts to ensure the equipment is stable and level. This will help balance the machine and prevent issues caused by uneven ground. Gradually adjust the bolts according to the installation guide of the equipment until the machine is stable and balanced. Each NC press brake manufactured by KRRASS is equipped with leveling bolts at the four corners of the machine frame.
- Secure the NC press brake: After placing the press brake in the appropriate position and leveling it, it needs to be secured to the ground to prevent any movement or shaking during operation. Use suitable bolts or anchoring devices to secure the base or feet of the press brake to the ground.
- Check for fixation and stability: Once the NC press brake is secured to the ground, carefully inspect the stability of the equipment. Ensure that all fixation points are tight and secure. Try to move the equipment by gently pushing or shaking it to ensure it doesn’t have any noticeable movement or shaking.
About the horizontal correction of the fuselage
If you want to correct the horizontal position of the NC press brake, you need to use a spirit level or a spirit level. The specific calibration process is as follows:
1. Use a level ruler and place it in the middle and both sides of the NC press brake workbench in turn for horizontal correction;
2. The level ruler is placed in the middle of the workbench of the NC press brake and placed horizontally to correct the horizontal position of the left and right sides of the NC press brake;
3. The level ruler is placed longitudinally at both ends of the NC press brake workbench, and is used to correct the horizontal position of the front and rear sides of the NC press brake;
Please note that this is just a basic procedural guide, and the specific installation process may vary depending on the model of the NC press brake. To ensure proper installation and operation, always refer to the installation guide and user manual of the equipment, and consult technical service personnel if needed.
Adding Hydraulic Oil
Adding hydraulic oil to the NC press brake is an important step to ensure its proper operation and use. Here is a simple procedure on how to correctly add hydraulic oil to the hydraulic press brake:
- Prepare the required materials: Before adding hydraulic oil, ensure that you have the following materials ready:
- Hydraulic oil suitable for your NC press brake (refer to the equipment manual or consult service personnel for recommendations)
- Hydraulic oil filter (if applicable)
- Funnel or manual pump (for adding hydraulic oil)
- Locate the hydraulic oil filling port: Locate the hydraulic oil filling port on the hydraulic press brake. Typically, the filling port is located above the hydraulic oil tank of the equipment. Refer to the press brake user manual or the guidance provided by service personnel to ensure you find the correct filling port.
- Clean the work area: Before starting to add hydraulic oil, it is essential to clean the area around the hydraulic oil filling port. Use a clean cloth or tissue to wipe the filling port to prevent any impurities or dirt from entering the hydraulic system.
- Install the hydraulic oil filter (if applicable): If the hydraulic press brake is equipped with a hydraulic oil filter, properly install it on the filling port. The hydraulic oil filter helps remove impurities and contaminants from the oil, maintaining the cleanliness and normal operation of the hydraulic system.
- Add hydraulic oil: Slowly pour the hydraulic oil into the filling port, using a funnel or manual pump to avoid spillage. Determine the required hydraulic oil capacity based on the equipment’s user manual or manufacturer’s recommendations. Gradually add the hydraulic oil and monitor the oil level using the hydraulic system of the equipment.
- Monitor oil level and pressure: During the hydraulic oil filling process, the oil level and pressure of the hydraulic oil should be monitored frequently. Make sure that the height of the hydraulic oil is half the height of the detection port, and close the oil filling port after adding oil.
Please note that the above process is a basic guideline. To ensure proper hydraulic oil addition and avoid potential damage, always refer to the NC press brake‘s user manual and follow the guidance provided by service personnel. If you are uncertain or lack experience with this process, it is best to seek assistance from professional technicians or experienced personnel.
Install the encoder (some models)
Some types of press brakes may not have an encoder installed when you receive them, which requires you to install the encoder on the top of the oil pump of the press brake.
1. Install the two encoders on the left and right sides of the press brake according to the positions shown in the figure, and tighten the four fixing screws in sequence;
2. The connector between the encoder and the oil pump is an o-shaped device, and there are screw tops on the top and bottom sides that can be tightened. You need to tighten them to ensure the normal operation of the encoder.
Connecting Power Supply
Connecting the power supply for a newly purchased NC press brake is an important step to ensure its proper operation and use. Here is a simple procedure on how to correctly connect the power supply for a NC press brake:
1. Confirm power requirements: Before connecting the power supply, first confirm the power requirements of the NC press brake. Refer to the press brake’s specifications, user manual, or information provided by service personnel to understand the required voltage, phase, and frequency for its operation.
2. Prepare the power cord: Based on the power requirements of the NC press brake, select a suitable power cord. Ensure that the rated current and voltage of the power cord align with the equipment’s requirements. If necessary, purchase a standard-compliant power cord.
3. Check the power socket: Check if the power socket used for the power connection meets the requirements of the NC press brake. Ensure that the voltage, phase, and frequency of the socket match the equipment’s requirements. Additionally, ensure that the socket’s grounding is reliable to provide a safe electrical connection.
4. Connect the power cord: Connect the selected power cord to the power socket in the correct sequence. Ensure that the end of the power cord is fully connected to the socket and check that the plug is securely inserted into the socket.
5. Inspect the power connection: Once the power cord is connected to the socket, carefully inspect the power connection. Ensure that the power cord doesn’t have any obvious damage or looseness. Verify that the power cord is properly connected to the power input port of the NC press brake.
6. Power-on test: After connecting the power supply, perform a power-on test:
6.1 First check the emergency stop button on the controller panel of the NC press brake and the foot switch, and turn them clockwise to restore them;
6.2 Turn on the main power knob on the electric cabinet;
6.3 Turn the main power key on the controller panel clockwise to turn on the main power of the controller;
4. Quickly click the start and stop buttons of the main motor of the oil pump of the NC press brake in turn, and observe whether the main motor is running normally (if you purchased a bending machine with a servo hybrid system, you can skip this step). When turning on and off the main motor quickly, pay attention to the rotation direction of the fan blade at the end of the main motor on the back of the fuselage:
- If the fan blades of the main motor rotate clockwise, it indicates that the power phase sequence is connected correctly, and you can proceed with the next steps.
- If the fan blades of the main motor rotate counterclockwise, it indicates that the power phase sequence is connected incorrectly, and you need to interchange any two phases of the three-phase power line in the socket.
After confirming the power phase sequence, observe the display screen or indicator lights of the equipment to ensure that it starts up and operates normally.
These are the preparations that need to be done before starting NC press brake. We hope this information has been helpful.
