The CNC gantry machining center actually has these features too!

Machining centers are typically developed on the basis of milling machines; therefore, they can be referred to as gantry milling machining centers, or simply gantry machining centers. Gantry machining centers are currently among the most widely produced and used CNC machine tools in the world, with the following key features:

Machining centers are typically developed on the basis of milling machines; therefore, they can be referred to as gantry milling machining centers, or simply gantry machining centers. Gantry machining centers are currently among the CNC machine tools with the highest production volumes and widest usage worldwide. Their main features are as follows:

(1) Based on a CNC boring machine or CNC milling machine, an automatic tool-changing device is added, enabling the workpiece to undergo multi-process machining on its surface in sequence after being clamped once and then again. The process is highly concentrated.

(2) Typically equipped with an automatically indexed rotary table or spindle head, which can automatically rotate to angles, enabling multiple processes—including machining on several planes or at multiple angular positions—to be completed automatically in a single operation.

(3) A machining center can automatically adjust the spindle speed, feed rate, tool path of the workpiece, and other auxiliary functions.

Function.

(4) If the machining center is equipped with a pallet changer, while the workpiece on the working table at the machining position is being processed, other workpieces can be unloaded from the unloading-position worktable without interfering with the processing of the currently active workpiece.

The above are some of the common key features of gantry CNC machining centers. Taking this opportunity, we will start with the characteristics of CNC gantry machining centers and provide a detailed introduction to the operating procedures.

(1) Use the device and implement a proper mechanism requiring operators to use operation certificates when operating equipment. For large-scale equipment operated by multiple personnel, there should be a dedicated supervisor.

(2) Operators should be familiar with the main technical specifications, structure, management requirements, and quality standards of the equipment in use.

(3) Preliminary Work Arrangements:

a. Inspect the equipment’s transmission system, operating system, lubrication system, pneumatic system, various switch and actuator positions, safety braking and protective devices, power regulation system, and electrical documentation. All these systems must be sound, accurate, sensitive, reliable, and complete. Ensure that all connections are tightly secured and that connectors are not loose.

b. Lubricate the equipment according to the lubrication chart.

c. Manually debug the spindle and all servo axes at low speed.

d. According to the part machining program sheet, in the CNC system’s memory table, you should check whether the tool compensation and zero-offset positions are correct, and then call up the appropriate tool compensation and zero-offset values to ensure their accuracy.

e. When inputting using paper tape, regularly check whether the paper being used is damaged and whether the photoelectric reader is functioning properly.

f. The specification for T-bolts used to tighten main components shall be consistent with the T-slot specifications of the equipment’s workbench. During tightening, apply appropriate force. It is strictly prohibited to apply force to any part of the equipment or to use force to correct components.

g. Ensure compliance with the precautions specified in the Machine User Manual.

(4) Items to check before operation after power-on:

After pressing the “ON” button to turn on the NC device’s power, the machine tool’s initial position coordinates will appear on the CRT display. Check the total pressure gauge installed on top of the machine tool; if the gauge reading is “4 MPa,” it indicates that the system pressure is normal and you can proceed with the formal operation.

(5) The correct procedure for the job is as follows:

a. Use the equipment according to the instruction manual and ensure it operates normally. Do not use it beyond its rated capacity, performance limits, or specifications.

b. During the first programming exam and machining process, the operator needs to work closely with the programmer and can only proceed to formal machining after confirming that the program is correct.