SKR7612A internal thread grinding center
This machine is mainly suitable for ball screw factory, automobile steering gear factory and other machinery manufacturing industry
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: SKR7612A internal thread grinding center
This machine is mainly suitable for ball screw factory, automobile steering gear factory and other machinery manufacturing industry
The internal thread grinding center is a CNC control machine tool, which can automatically complete the grinding of the thread raceway surface, outer circle surface and shoulder surface of the nut in one clamping. This machine is mainly suitable for ball screw factory, automobile steering gear factory and other machinery manufacturing industries, with dry single, famous varieties and large quantities of ball screw nut grinding.
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The machine is a five-axis internal thread grinding center, using the German SIEMENS company 828D CNC system, the machine tool in the CNC axis name is as follows:
• Transverse movement X axis of inner and outer grinding wheel grinding heads
• Longitudinal Z-axis movement of the table
• Head frame spindle rotation C- axis
• Internal thread grinding head spiral lift angle automatic rotation A axis
• Drive parts X, Z, C and A adopt digital AC servo amplifier and digital AC servo motor of SIEMENS company. The machine is equipped with a network port for communication with a PC.
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• Arc internal thread grinding accuracy
• Basic lead limit deviation: 0.004mm
• Cumulative tolerance of lead in effective length: 0.006mm
• Roundness of middle diameter: 0.005mm
• Surface roughness: Ra≤ 0.4um
• External back grinding accuracy
• Concave column: 0.003mm
• Surface roughness accuracy
• Shoulder surface: Ra0.63um
• Outer circle: Ra0,4um
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• The machine adopts SIEMENS828D to control the feed movement of each servo motor, with automatic cycle grinding function, single stroke or double stroke grinding function.
• Automatic cycle grinding can realize automatic cycle feed and compensation, automatic dressing grinding wheel.
• The machine is equipped with diamond wheel dresser, which can complete the automatic dressing of the grinding wheel and the automatic compensation of the dressing amount through the numerical control system.
• The internal grinding wheel earth shaft has the function of automatic adjustment of spiral lifting angle and automatic clamping after adjustment.
• The machine tool is equipped with an automatic tool setting mechanism, which can measure the grinding starting point of the workpiece online and the machining allowance of the cylindrical end face before processing.
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• Maximum workpiece rotation diameter: 160mm
• Maximum workpiece installation length: 150mm
• Grinding workpiece diameter
• Internal thread: 12-80mm
• Outer circle: 20-120mm
• Maximum grinding workpiece length
• Internal thread: 125mm
• Excircle: 150mm
• Center height: 210mm
• Pitch of grindable thread: 1-24mm (metric)
• Maximum helix angle of grinding internal thread: 12 ° left, 12 ° right
• Grinding wheel spindle speed
• Internal thread: 30000 rpm
• Outer circle: 1672~2000rpm
• Grinding wheel size internal thread
• Maximum diameter: 60mm
• Minimum diameter: 16mm
• Excircle: 300-400mm
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