Single Pass Honing Machine - SP 650
 
Single Pass Honing Machine
 
 
The Process
Single pass honing process, as the name indiatces, is just passing the honing tool once in the bore. The tools are barrel shaped and pre-set with consecutively increasing size. The tool is passed through the bore while it is rotating. Conventional honing tool reciprocates, expands while honing and retracts after completion of cycle. While Single Pass honing tool is slow wearing diamond impregnated, adjustable and pre-set to size, it does not have to expand and retract during the cycle. Hence, consistency of the bore size is ensured.

SP 650 is a six spindle machine designed to meet the requirements of high production for components of bore dia up to 38 mm.

Standard Machine Design features

• Two axis CNC controller.
• CNC Servo controlled vertical axis.
• CNC Servo index table.
• Vertical stroke 450mm.
• Pneumatic cylinders with fine pressure regulator to counter
   balance the head.
• Pre-lubed, P4 Class duplex spindle bearings.
• Tr36 tool holder with vertical, bidirectional float.
• Rigid, compact machine base.
• Auto-Lube system.
• Electrical panel with isolation transformer.
• Overload interlock to spindle motor.
• Tool overload sensors.
• Fabricated, stress relieved machine structure.
 
The process is most suitable for components like Gears, connecting rod, rocker arm, gear shifter fork, bush, hydraulic valve, crank case of hermetically sealed compressor, sewing machine components, pistol barrles etc. The process gives 2-3 microns size repeatability over a long batch size.
Applying Single Pass Diamond abrasive Bore finishing technology, extremely close tolerances can be achieved consistently in mass production at a lesser per piece cost. Diamond plated finishing tools are capable of achieving micron/sub micron accuracy.
SP 650 is a six spindle machine designed to meet the requirements of high production for components of bore dia up to 38 mm. Here the configuration is six spindle and eight stations. Two stations are idle always for loading / unloading of the component. In case of material removal upto 0.030 on dia, pair of three spindles can be configured to finish the component. Hence, two components can be finished every cycle. The productivity is doubled.