• B2-K1017
  • Rock Bit Backcone Grinding Machine

    • Features of the machine tool performance and structure

    B2-K1017 Rock Bit Backcone Grinding Machine is a kind of CNC machine tool specially developed for petroleum drilling machines industry on basis of years experience accumulated by the Company in design, manufacture and application of new technology for CNC grinding machines. The machine is applied for precise processing backcone face for rock bit parts. It features simple operation and reliable performances.

      • With integral protective cover, the machine tool is convenient for maintenance and in conformity with human engineering requirements.
      • With a sleeve type hydrostatic/hydrodynamic mainshaftingadopted for the grinding wheel spindle, the machine tool features on the high rotary precision and good rigidity.
      • With two-axis linkage feeding, the machine tool is equipped with worktable (Z axis) and wheel head (X axis) drivenbyAC servomotor and ball screws. The minimum setting unit is 0.1μm, while the maximum fast feed speed can reach 5m/min.
      • The machine tool can be provided with various types of diamond dressers (installed on the rear side of the work head) according to the needs of customers, thus realizing precise trimming for complex wheel profileand automatic compensation.
      • The machine tool is provided with an imported or a domestic active measuring device, thus realizing the closed-loop control of grinding process.
      • The machine tool adopts an imported advanced CNC system and is provided with all-around controlling functions including grinding program changes, work-piece quality control, machine condition monitoring, fault self-diagnostics, abnormal alarm, and convenient menu type interface input.

    Specifications

    Specification Unit B2-K1017
    Maximum rotating diameter mm Æ450
    Distance between centers mm 450
    Height of center mm 240
    Maximum grinding diameter mm Æ450
    Maximum workpiece weight between centers kg 100
    Control system   FANUC     SIEMENS
    Grinding wheel (max) OD × W × ID mm Æ750×(50~75)×Æ305
    Linear speed mm/sec 45
    Wheel head Total travel mm 380
    Feed speed mm/min 0.05~5000
    Minimum setting unit mm 0.001
    Oblique angle ° 30~46 (adjustable)
    Worktable Type   Two layer conical degree adjusting worktable
    Feed speed mm/min 0.05~5000
    Minimum setting unit mm 0.001
    Work head Center   MT. No.5
    Rotating speed r/min 15~150 (stepless)
    Tailstock Center   MT. No.6
    Travel of center mm 380
    Electrical system Power of wheel spindle motor Kw 22
    Torque of wheel head feeding motor N.m 22(FANUC)/27(SIEMENS)
    Torque of worktable feeding motor N.m 22(FANUC)/27(SIEMENS)
    Power of work head spindle motor Kw 5.5Kw variable frequency motor
    Hydraulic pump motor Kw 0.75(4P)
    Motor of wheel spindle bearing lubrication pump Kw 0.75(4P)
    Cubage dimension Hydraulic and lubricating oil tank L 45
    Spindle bearings oil tank L 14
    Net Weight T 15


    Working accuracy (standard test specimen)

    Inspection item B2-K1017
    Roundness 0. 1mm
    Straightness 0.01/100mm
    Roughness Ra 0.8μm


    Layout plan


     

    Specifications, precision and appearance are subject to change without notice because of constantly development of our technology.