Imported motorized spindle manufacturer: an introduction to CNC lathe motorized spindle technology

The motorized spindle is a new technology emerging in recent years in the CNC machine tool industry that integrates the machine spindle with the servo motor. The high-speed main drive system removes belt drives and gears. The spindle is driven directly by the built-in motor, reducing the length of the main transmission to zero and achieving "zero transmission" for the machine. This "motor and spindle as one" drive structure makes the spindle assembly relatively independent from the machine's drive system and overall structure, so it can be built as a "spindle module", commonly known as the "motorized spindle".

Together with servo technology and high-speed tool technology, the motorized spindle has brought high-speed machining into a new era. A motorized spindle is a complete system consisting of the spindle itself and its accessories: the spindle, high-frequency inverter, oil-mist lubrication unit, cooling system, built-in servo motor and tool-setting device, etc. The motor rotor directly serves as the machine spindle, the spindle unit housing is the motor shaft, and other components work together to achieve full integration of motor and machine spindle.

With the rapid development and improvement of mechatronic drive-control technologies (frequency conversion, closed-loop motor control, etc.), the mechanical system of the high-speed main drive has been greatly simplified, and most belt drives and gears have been eliminated. Because motorized spindles mainly use AC high-frequency motors, they are also called "high-frequency spindles". Since there is no intermediate transmission stage, they are sometimes called "direct-drive spindles".

Imported motorized spindle manufacturer: causes of engraving-machine spindle damage

1. Spindle quality. As engraving machine spindles become more and more widely used, spindle quality varies greatly. A spindle of poor quality, under heavy-duty working conditions, is bound to fail sooner or later. Therefore, when purchasing an engraving machine spindle motor, customers should choose a reputable manufacturer and never buy inferior, counterfeit or reworked spindles just to save money.

2. Cooling system problems. The cooling systems of engraving machine spindles are mainly air-cooled or water-cooled. Both have their own advantages. Considering installation difficulty and seasonal influence, air-cooled spindles are simpler and more practical, avoiding problems such as water-tank freezing in winter that can affect the spindle.

3. Overlong continuous operation. The speed of a CNC engraving machine spindle can reach 18,000 rpm; running continuously under high-intensity load for too long is very harmful to the spindle, so continuous operation should generally not exceed 12 hours.

4. Operating errors. Some customers start engraving before the spindle has reached the specified working speed, which easily damages the bearings. When a motorized spindle starts work, it should run at low speed for a warm-up period of about 30 minutes.

Imported motorized spindle manufacturer: that is all for this article. Thank you for watching, see you next time.