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The Mechanism Characteristics of High-speed Motor Spindle of PCB Drilling Machine

From:sochi

  Kunshan Sochi is professional motor spindle manufacturers who can provide you with high-quality products with maximum RPM up to 60,000 ~ 180,000r / min. Since any small unbalance in the spinning part may cause a huge centrifugal force and result in vibration of the machine tool, thus affecting the quality of parts processing. Therefore, the motor spindle must be very strictly calibrated to make the dynamic balance accuracy reach ISO standard G0.4 level, that is, at the highest speed, due to residual dynamic imbalance caused by the vibration of the maximum allowable value of 0.4mm / s.

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  For this reason, the principle of structural symmetry must be strictly observed in the design of the motor spindle structure. The dynamic balance structure of the high-speed motor spindle must be rigorous. The torque is transmitted between the motor rotor and the spindle by the interference fit produced by the interference sleeve, and the key, thread and other parts connection should be avoided as far as possible; when dismantling the spindle, high-pressure oil is pressed into the annular bore e from the small hole a at the left end of the rotor inner sleeve with a high-pressure pump, and the inner diameter of the interference sleeve 1should be expanded under the pressure of high-pressure oil, so that the rotor can be easily removed. In order to ensure the symmetry of the spindle unit structure, another small hole b is machined symmetrically on the left end face of the rotor inner interference sleeve 1 (plugged with a screw plug after machining), which is designed for balance.

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  Kunshan Sochi Electronics Co.Ltd is a professional manufacturer who dedicated to provide High quality PCB equipment&consumable collet parts.CNC drilliing & routing machine(HITACHI, SCHMOLL, POSALUX, EXCELLON, PLURITEXC, ANDERSON etc..parts: lenses, scanning mirror, laser head, XYZ axis motor, PR mirror, MCU substrate, IO board, RU4B board, TUMA board,M22 servo board, pressure foot, grippers, knife break detection board, cables, sensors, amplifier, DLR Measuring Unit, air cylinder, collet, tool holder, tool cassette, pressure feed, tube brush, rubber roller, etc..MTSUBSHI/HITACHI laser machine parts.

 

 


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