China Gear Hobbing Machine

Performance and features of this machine
This machine is suitable for large batch, small batch and single production of cylindrical spur, helical gears, worm wheel and chain wheel etc. with the process method of continuous cent.
This machine tool with wide bed, has features of good rigidity, high strength and precision, easy operation, adjustment and maintenance etc. Indexing worm gear of work table adopts precise worm wheel machine tool and special worm rod grinding bed for processing, which ensured high index precision. The worm wheel is made of high-quality copper which enhanced capacity of abrasion resistance.
The casting parts of machine tool is processed with precipitation heat treatment, which eliminated casting internal stress and avoided machine tool deformation. Machine bed and column guideway is processed with grinding treatment after quenching, which raised the hardness of guideway surface and enhanced capacity of abrasion resistance.
The adoption of drive gear for grinding and shaving process, which ensured the transmission accuracy.

Specifications and main technical parameters

Maximum hobbing modulusSteel 12 mmCast iron16 mmMaximum workpiece diameter when processing straight tooth gearWith rear column1000 mmWithout rear column1250 mmMaximum workpiece width when processing straight tooth gear (width between centre≥200)450 mmMaximum travel of tool post slide470 mmDistance between cutter axis and work table Maximum 690 mmMinimum 220 mmDistance between axis of cutter and work tableMaximum 750 mmMinimum 100 mmSpindle holeMorse 6Maximum dimension of cutterDiameter260 mmLength300 mmDiameter of changeable hobbing centre axis27, 32, 40, 50,60 mmMaximum axial movement of cutter100 mmMaximum loading capacity of work table3 tonsDiameter of work table1000 mmPore diameter of work table220 mmTaper bore of workpiece mandrelMorse 6Degree of spindle rotationClass 7 Rotary range of spindle16-125 r/mDegree of vertical feed rateClass 8Range of vertical feed rate0.39-4.39 mm/ work table rotationVertical rapid moving speed of sliding carriage0.525 m/minVertical manual rotation speed of sliding carriage0.63 mm/rRapid moving speed of work table0.47 m/minAccuracy of radial manual federate of work table0.02 mmPower and rated speed of main motorN=11 Kw 1440 r/mPower and rated speed of rapid motorN=3 Kw 1420 r/mPower and rated speed of rapid motor of work tableN=1.5 Kw 940 r/mPower and rated speed of motor of hydraulic oil pumpN=2.2 Kw 940 r/mPower and rated speed of motor of cooling pumpN=0.4 Kw 2800 r/mMachine overall dimension (lengthxwidthxheight)3750x2040x2500 mmMachine weight(about)13.5T