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Precision CNC Internal Thread Grinding Machine for High-Quality Finishes2
CNC Machine Tools, CNC Internal Grinder Machine, Internal Thread Grinding Machine
Sunrise Mechatronic Technology Co., Ltd.
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Product Description Machine PictureMachine Introduction 1. Especially suitable for grinding large nuts. It can be applied to dressing of grinding wheels with complex shapes and adapting to different specifications of steel balls.2. Double grinding wheels compound grinding technology, one clamping can realise the compound processing of outer circle, end face and inner thread of ball nut;3. Full closed-loop control system, online automatic measurement, can automatically measure the position of ball nut reverser hole;4. Grindable large external diameter: Φ150mm; internal thread diameter: Φ20-Φ100mm, length: 200mm;There are two ways of nut raceway grinding wheel correction: one is to adopt moulding diamond roller, each specification steel ball, with one kind of diamond roller. One is to use disc-shaped diamond roller (SMK203 does not have this function), using X and W axis CNC interpolation correction, a disc wheel can be adapted to all specifications of steel ball, especially suitable for large nut grinding. It can be applied to grinding wheels of any shape. Machine ApplicationsThis machine tool is used for grinding the internal threads, outer circles and end faces of workpieces. Machine Features 1. This machine tool is used for grinding the internal threads, outer circles and end faces of workpieces. 2. The machine tool features a T-shaped flat bed structure. The bed is made of high-quality inoculated cast iron, which has excellent vibration damping capacity. The X-axis screw guide and Z-axis screw guide are arranged onthe bed. THK ball screws and THK linear guides are adopted, and the Xand Z axes are perpendicular to each other. The bed is fixed on a cast ironbase. The large-inclined-plane cast iron base is used to facilitate chip removal. 3. The machine tool is equipped with a servo-controlled electric spindle as the workpiece spindle, which is fixed on the Z-direction slide. A diamond pen dresser is also fixed on the Z-direction slide. A frequency-controlled internal hole grinding spindle and a frequency-controlled outer circle and end face grinding spindle are fixed on the X-direction slide. The diamond roller spindle is installed on the marble bed, and the dressing amount of the grinding wheel can be automatically compensated. 4. The workpiece spindle is an electric spindle directly driven by a built-in synchronous motor, and a Heidenhain hollow shaft encoder is used on the electric spindle. The workpiece spindle is equipped with a rotary oil cylinder and a hydraulic chuck to automatically clamp the workpiece. 5. The diamond pen dresser can shape the outer circle and end face grinding wheel. The outer circle and end face grinding share one grinding spindle. The diamond roller dresser can shape the internal thread grinding wheel. 6. The machine tool is equipped with a measuring device to measure the starting position of internal thread grinding. 7. All electric spindles on the machine tool are controlled by constant temperature cooling to ensure that the spindles and motors operate at a constant temperature. Meanwhile, it reduces the thermal deformation of the workpiece, bed and worktable caused by the thermal radiation and heat conduction of various heating devices on the machine tool. Each hydraulic pipeline on the machine tool is equipped with a pressure or flow detection device to ensure the protection of the electric spindles, guides and motors on the machine tool in case of failures of the cooling or pressure devices.8. The electrical cabinet is cooled by an air conditioner to ensure that the high-power drive components in the electrical cabinet can work normally within the allowable temperature range. 9. The machine tool is provided with a fully enclosed protective cover and a manually controlled protective door. An oil mist absorber is used to automatically absorb the oil mist to ensure the air quality in the workshopMachine Specifications ItemDetailsUnitParametersProcessingCapacityGrinding internal thread diametermmΦ30-120Grinding internal thread lengthmm250 ProcessingAccuracyGrindable internal thread helix angleDegreeRight 25°,Left 25°Dimensional tolerancemm0.008 Roundnessmm0.008 Cylindricitymm0.008/150Deviation in one pitch (trapezoidal internal thread)mm0.005 Deviation in 25mm lengthmm0.0008 Cumulative deviation over the full lengthmm0.010 Thread pitch diameter consistency errormm0.012 Surface roughnessμmRa≤0.4Internal ThreadGrinding Wheel SpindleMaximum spindle speed min-112000 Rated powerKW20 Outer diameter of spindle sleevemmφ170External GrindingWheel SpindleRated spindle speed min-11270 Rated powerKW5.5 Grinding wheel size (outer diameter×inner diameter×thickness)mmΦ350×Φ127×40Diamond RollerSpindleRoller size (outer diameter×inner diameter×thickness)mmφ100×φ25×30Maximum spindle speedmin-110000 WorkpieceSpindleSpindle speedmin-10-100Rated torqueNm64 Rated powerKW11 Minimum angular unitDegree0.001 Linear axisMachine travel (X/Z/W)mm750/400/50Minimum feedmm0.001 MachineparameterTotal powerKw25 Air pressureMP0.5 Cooling tank volumeL600LSize (Length/Width/Height)mm3500/2500/2410WeightTon8 Machine ConfigurationMachine tool standard configurationItemNameUnitQTY1Controller1setSIEMENS2Drive and motor1setSIEMENS3X,Z axis Grating scale1setGermany HEIDENHAIN4Work spindle encoder1setMagnetic gate sensor5Cutting fluid filtration system1setMagnetic separator + water tank6Spindle oil cooler1setTONGFEI7Compressed air drying filter1setPNEUMATECH8Grinding spindle frequency converter1setSHIHLIN9Dresser spindle frequency converter1setSHIHLIN10Electronic component1setOmron/Schneider11Electric cabinet constant temperature air conditioning1setTONGFEI12Self-lubrication System1setChina famous brand13Hydraulic system1setChina famous brand14Water injection rotary cylinder1setChina famous brand15Clamping fixture1setFactory customized16X,Z axis lead screw1setTHK17X,Z axis rail1setTHK18Oil mist absorber1setChina famous brandMachine tool optional parts configuration list1diamond roller1set 2internal thread grinding rod and wheel1set 3lathe tool rest1set
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