Table: driven by AC servo motor through precision and pre-loaded ball screw. A linear grating scale is equipped at the front table to form a close-loop control.

Work spindle: driven by AC servo motor through precision worm gears. A rotary encoder is provided at the end of the spindle to form a close-loop control.

Wheel spindle: driven by permanent magnet synchronous motor; the spindle speed is stepless; a separate chiller is provided to ensure constant oil temperature.

Wheelstock: driven by AC servo motor through precision pre-loaded ball screw. A linear grating scale is equipped to form a closeloop control. Helix angle change is done manually.

Wheel dresser: a diamond disc driven by two independent AC servo motors moving in two direction simultaneously to dress grinding wheel.

Main usage

Machine is especially designed to grind big cylindrical and conical thread plugs.

Features

• A grinding wheel spindle combining a high-power built-in synchronous motor and high-precision rolling bearings significantly improves workpiece grinding efficiency and surface quality.
• A CNC grinding wheel dresser with multiple optimizations allows for higher dressing accuracy and better dressing flexibility for various grinding wheel shapes.
• A constant-temperature, high-flow-rate, dual-filtration cooling system greatly reduces the impact of temperature on the machining accuracy of the screw rotor.
• Upgrades to the constant-temperature, high-flow-rate, dual-filtration cooling system and the development of a multi-point workpiece shower cooling device further reduce the impact of temperature on the machining accuracy of the ball screw.
• Intelligent grinding software allows for flexible and convenient dressing of various grinding wheel shapes and grinding of different workpieces through human-machine interaction.
• Green manufacturing technologies comprehensively enhance the safety and environmental protection of the entire machine, comprehensively improving the anti-leakage and anti-seepage technologies of the machine tool’s hydraulic and lubrication systems, as well as the protective systems for guideways, motors, and optical gratings.

Main usage

It is mainly used for grinding precision screw rotor parts and other threaded parts with various irregular tooth surfaces in industries such as air compressors, refrigerators, and industrial pumps.

Features

• The non-contact alignment device is provided to realize fast pitch-matching.
• Wheel dressing is conducted by a formed diamond roller.
• Smart grinding program makes the machine have automatic grinding cylce,wheel dressing and self-compensation for wheel dressing.

Main usage

This machine is mainly used for mass production of automotive steering screws, ball screw nuts, triangular and ACME threads.

Features

• Employs high-precision lead screw-nut and gear transmission pairs to ensure high pitch accuracy on the workpiece;
• This machine tool has an automatic indexing mechanism with high indexing accuracy and reliable operation, enabling convenient grinding of single-start or multi-start worm gears;
• This machine tool is equipped with a hydraulic automatic template grinding wheel dresser, capable of grinding ZA, ZN, and ZI worm gears;
• The grinding wheel spindle uses a diaphragm feedback hydrostatic bearing, providing high rotational accuracy and rigidity to ensure high production efficiency and a smooth working surface;
• The workpiece and worktable are driven by an AC variable frequency motor, enabling stepless speed regulation;
• The machine tool features a fully enclosed casing and is equipped with an air purifier, providing a good working environment and an aesthetically pleasing appearance;
• This machine tool can be optionally equipped with a CNC grinding wheel dresser for convenient grinding of ZA, ZI, ZN, ZK, and ZC1 type worm gears.

Main usage

It is mainly used for grinding various cylindrical worm gears, such as normal straight profile worm gears, axial straight profile worm gears, and involute worm gears, and can also be used for grinding trapezoidal lead screws. It is suitable for grinding indexing worm gears or power transmission worm gears in machine tool manufacturing plants and other machinery plants.