SKR7620C internal thread grinding center
Mainly used in ball screw industry, used for grinding ball screw nut
Classification:
Complete set of ball screw processing equipment
Product accessories:
- Main use
- CNC system configuration
- Working accuracy
- Technical features
- Main specifications and parameters
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- Commodity name: SKR7620C internal thread grinding center
Mainly used in ball screw industry, used for grinding ball screw nut
It is mainly used in the ball screw industry for grinding ball screw nuts. It can complete the compound precision grinding of the outer circle, end face and internal thread raceway of ball screw nuts in one clamping.
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• Using SIEMENS 828D numerical control system, control to achieve three-axis two linkage;
• Number of control axes: 3 axes
Longitudinal motion of Z-axis table with full closed-loop control of grating ruler
X-axis inner and outer grinding wheel frame transverse feed motion with grating ruler full closed loop control
Rotational Motion of C- axis Workpiece Spindle with Full Closed-loop Control of Grating Ruler
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1. Grinding arc internal thread
(1) Pitch accuracy
Basic lead limit deviation: 0.003mm
Cumulative lead deviation over a length of 25mm: 0.005mm;
Cumulative lead deviation over a length of 50mm: 0.006mm;
(2) Thread pitch diameter: 0.01mm;
(3) Surface roughness: Ra0.4μm;
2. Grinding of excircle and flange end face
(1) Cylindricity of excircle: 0.008mm
(2) Roughness of excircle: Ra0.4um;
Roughness of flange end face: Ra0.63μm;
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• Workpiece spindle is directly driven by motor: X and Z axes are directly driven by linear motor;
• External grinding wheel spindle is directly driven by high-power built-in motor;
• The inner grinding wheel spindle adopts high-power and high-speed electric spindle;
• The inner grinding wheel is trimmed by forming diamond roller, and the outer grinding wheel is trimmed by gold pen;
• Equipped with hydraulic power chuck to realize automatic clamping of workpiece;
• Configure automatic tool set device;
• Configuration of special grinding software with independent intellectual property rights;
• The machine tool has remote diagnosis and monitoring functions;
• Optional function: diamond disc wheel CNC plug repair counter.
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• Maximum workpiece length: 200mm
• Maximum rotary diameter: 200mm
• Maximum grinding workpiece diameter
Internal thread: 20 -- 150mm
Excircle: 20 -- 200mm
• Maximum grinding workpiece length
Cylindrical internal thread: 125mm
Excircle: 150mm
• Grinding thread pitch: 1~24mm
• Maximum lead angle of grinding thread: ± 12 °
• Number of grinding thread heads: 1-45 arbitrary
• Maximum rotation speed of grinding wheel
Internal grinding wheel: 24000r
External grinding wheel: 2000r
• Grinding wheel diameter dimensions
Maximum grinding wheel: 80mm
Minimum grinding wheel: 16mm
External grinding wheel: 400mm
• Machine host weight: about 6.5 tons
• Machine host dimensions: 3100x2050x2400mm
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