When the zero point positioning system is combined with a numerical control machining center (CNC), compatibility needs to be optimized from multiple aspects such as physical interfaces, control systems, accuracy matching, and environmental adaptability. Here are the key solutions:
1. Physical interface compatibility
Installation of base plate: Fix the base plate of the zero positioning system on the T-shaped groove of the CNC worktable. Clean the surface and correct the flatness (error ≤ 0.01mm) before installation. Use high-strength bolts (such as 12.9 grade) to tighten according to the specified torque (such as M8 bolt torque 35Nm).
Dimensional standardization: The locator specifications (such as LQNC series Φ 138 × 53mm or Φ 172 × 63mm) need to be matched with the CNC worktable to avoid interference, and the distance error between the pull pins should be controlled within ± 0.01mm.
Pneumatic system integration: The unlocking pressure of the locator should be stable at 0.45-1.2MPa (recommended 6bar), and the CNC air source should be equipped with a gas storage tank to prevent pressure fluctuations; The gas interface is a standard G1/4 gas pipe joint.
2. Control system integration
Sensor docking: The locator is equipped with a built-in PNP sensor, which can detect the clamping status in real time. The signal line is connected to the CNC I/O module to achieve automated monitoring and safety feedback.
Offline pre adjustment support: The workpiece clamping and calibration (such as Z-axis accuracy ≤ 0.04mm) can be completed in advance through the pre adjustment station, reducing CNC online adjustment time and improving compatibility efficiency.
3. Accuracy and performance matching
Repetitive positioning accuracy: The zero point system has an accuracy of ≤ 0.005mm, ensuring seamless matching with CNC high-precision machining requirements.
Clamping force adaptation: Select the locator model according to the processing load (such as LQNC-10 clamping force of 10kN for light workpieces, LQNC-40 clamping force of 40kN for heavy workpieces), and leave 1.2-1.5 times the safety redundancy of the clamping force.
Environmental adaptability: The system operates within a temperature range of -20 ℃~80 ℃, with a corrosion-resistant design that is suitable for harsh environments in CNC workshops.
4. Operation and maintenance optimization
Regular verification: Check the clamping force and positioning accuracy every 100000 cycles to prevent compatibility degradation caused by wear and tear.
Automatic chip removal function: The locator has a built-in airflow blowing mechanism, which automatically removes chip impurities and avoids interference with the positioning surface.