Harmonic reducer bearing inner ring 90 ° V-shaped raceway ultrasonic pneumatic static pressure high-precision CNC grinder-Fornitore globale

“ZCS-NQM110 harmonic reducer bearing inner ring 90 º V-shaped raceway ultrasonic and static pressure high-precision CNC grinder”The grinding wheel shaft adopts a high rigidity air static pressure permanent magnet synchronous ultrasonic electric spindle, the workpiece shaft adopts an air static pressure permanent magnet synchronous electric spindle, and the formed grinding wheel has a 90 º V online dressing system. The X/Z axis adopts high-precision air static pressure guide rails, Spanish Fagor high-precision grating rulers, and Singapore Yakobes high-precision linear motors. The Y axis adopts high-precision cross guide rails and precision ball screws. The grinding wheel shaft is equipped with an imported AE air clearance sensor (optional), and the workpiece online measurement is equipped with a Japanese Dongjing measuring instrument (optional). The grinding wheel dressing is equipped with an optical online imaging 90 º V detection system (optional), and a Taiwan new generation bus type precision CNC system is used to form a fully closed-loop control system. Achieve a machining accuracy of 0.3um roundness and 0.1Ra/μ m surface roughness for the entire machine. The specific technical parameters are as follows:

1、 Technical features:
This machine tool is suitable for 90 º V-shaped raceway grinding and ultra precision grinding of the inner ring of harmonic reducer bearings.
The high precision of this machine toolHydrostatic electric spindleBoth, as well as the air static pressure guide rail, are made of "nano hollow permeable materials", which have the characteristics of high rigidity, large load-bearing capacity, low gas consumption, self-lubricating, non wear, low-carbon and green environmental protection.
The grinding wheel ultrasonic hydrostatic electric spindle adopts the company's innovative product ultrasonic vibration grinding technology. The built-in ultrasonic mechanism can adjust the ultrasonic stop and start, as well as the amplitude and frequency according to the process needs. It has the characteristics of improving processing efficiency, improving surface smoothness, extending the service life of the grinding wheel, not burning the workpiece, and not easily sticking to the grinding wheel. The drive adopts a variable frequency drive with stepless speed regulation.
The workpiece electric spindle adopts an air static pressure permanent magnet synchronous motor, with built-in encoder and synchronous driver driving stepless speed regulation, which has excellent characteristics such as high torque, high speed accuracy, and smooth rotation. Heartless electromagnetic fixture for clamping workpieces.
● Forming grinding wheel 90 º V online dressing system. ① The 90 º V dual grinding wheel dressing electric spindle is installed on the Y-axis column guide plate and can be roughly and precisely adjusted at a 45 degree angle. The Y-axis can move up and down to adjust the center point and elevation angle, ensuring that the center point of the 90 º V grinding wheel tip rotates in one plane. This dressing machine spindle adopts an air static pressure AC asynchronous electric spindle, which can be driven by a frequency converter for stepless speed regulation The optical imaging lens is installed on the upper part of the Y-axis column, which can magnify and monitor the real-time alignment between the 90 º V contour of the dressing grinding wheel and the CAD standard 90 º V line on the display screen. It has the advantages of convenient and fast angle adjustment, and accurate monitoring.
The X/Z axis adopts high-precision air static pressure guide rail, Spanish Fagor high-precision grating ruler, and Singapore Yakobeys high-precision linear motor non-contact drive, with a full stroke straightness of up to 1um. The Y-axis adopts high-precision cross guide rails and precision ball screws, driven by a new generation of high-precision CNC servo motors. The system adopts a Taiwanese new generation bus based precision CNC system with a resolution of 0.1um, achieving a machining accuracy of 0.3um roundness and 0.1Ra/μ m surface roughness for the entire machine.
Optional Japanese online outer diameter precision measuring instrument, with a repeated measurement accuracy of 0.2um/4 σ, used for measuring workpiece machining dimensions and achieving automatic compensation control of dimensional tolerances.
Optional AE sensor, built-in in the grinding wheel dressing electric spindle for quick tool alignment, reducing idle time, improving processing efficiency, and preventing collisions.
The workpiece cooling adopts oil cooling method, and the oil filtration adopts precision oil filtration system with a filtration accuracy of less than 1um.
● Equipped with independent electric spindle, linear motor chiller, and independent cutting oil cooling unit.
The grinding wheel electric spindle has an air seal+labyrinth waterproof and dustproof structure, and is equipped with a dynamic balance ring.
The workpiece is clamped using a centerless electromagnetic fixture.
The main structural components of the machine tool are made of high-quality natural marble, which has stable organization and solid structure. Fully enclosed outer cover.
The grinder is equipped with pressure sensors at the inlet of the air and water circuits, which have fault alarm protection functions such as overcurrent, overload, air pressure below the lower limit, and cooling water cut-off. And it has communication function with the upper computer (RS-485).

2、 Main Technical Parameters Table of the Whole Machine

IIIInternal structure diagram of machine tool

5、 Installation requirements for use

1. Operator requirements: This machine tool is a high-precision CNC grinder, and the operator is required to have basic skills in operating CNC grinders. They must receive training from Party B and master safety operating procedures before they can use it.
2. Installation and environmental requirements:
The fluctuation of the power supply voltage should be within ± 10%, and the working temperature should be installed in a constant temperature room (20 ℃± 1 ℃) for use. The humidity should be less than 75%, and the installation should be away from the seismic source. If conditions permit, isolation trenches can be used. The horizontal placement of the equipment should be less than 0.02mm, and the level can be adjusted with adjustable shims.
3. The compressed air source requires three-stage filtration, and this machine tool is equipped with a precision three-stage filter. However, the supply air source needs to be processed by a dryer, with a pressure in the range of 0.5-0.7MPa, a water content of less than 90%, an oil content of less than 90%, a temperature of 17-19 ℃, and an impurity content of less than 1um.
4. The spindle cooling water requires constant temperature, with a temperature range of 17-19 ℃, a flow rate of 2L/min, and a pressure of 2-3kg.