Operating a CNC gear hobbing machine requires following standardized procedures. The core procedures include equipment inspection, workpiece and tool clamping, parameter setting, and CNC programming to ensure machining accuracy and safety.
As a high-precision gear machining machine, the operation of a CNC gear hobbing machine integrates mechanical adjustment and digital control. The following is a systematic explanation of the key steps:
Pre-Operation Preparation
Equipment Status Inspection
Confirm that the lubricating oil level is adequate, the cooling system is normal, and there is no jamming in any moving parts.
If the machine has been shut down for more than 8 hours, the hydraulic lubrication system must be started and run for 5-10 minutes, and each axis should be manually run at low speed for a test run.
Check that the protective devices and limit switches are complete and effective. It is strictly forbidden to move or damage warning signs.
Environmental and Safety Requirements
Operators must wear protective clothing, goggles, earplugs, and other protective equipment.
Clean up debris around the machine tool. Tools or accessories must not be piled on the machine tool.
Hob and Workpiece Installation
Hob Clamping Requirements
The inner hole and end face of the hob, as well as the contact surfaces with the mandrel and washers, should be clean and properly fitted. Hobs with incorrect tapers or specifications must not be clamped.
After clamping, they must be securely tightened to prevent loosening that could lead to vibration or damage.
The radial runout of the hob shank end face should be less than 0.01mm to ensure positioning accuracy.
Workpiece Clamping Points
The workpiece must be firmly clamped to the worktable to prevent displacement during machining.
For sector gears, a counterweight should be added to the worktable to reduce vibration.
When lifting large workpieces, appropriate lifting tools should be selected to prevent collisions with the machine tool.