Is there an expert who knows the broach?!
A machine tool spindle broach mechanism, a spindle is in threaded inside a broach broach rod is connected with a rod, claw clamping device for clamping or loosening cutter, broach rod sleeve is provided with a force pushing device, force pushing device comprises a pushing rod and a wedge block, wedge block with double the inclined plane respectively a wedge-shaped groove and a push rod and inclined broach rod are wedged, to pull the rod with tight broach, forcing a push device component section shape is round, can keep dynamic balance and achieve good purpose of high-speed operation.
The broaching mechanism is an automatic tensioning and automatic releasing mechanism for the main shaft of a small numerical control machine tool.principleBy pre compressing the disc spring, sufficient upward broaching force is produced. When you need to change the knife, a knife loosening signal control system, through the electromagnetic reversing valve to control the hydraulic system, hydraulic cylinder pressure oil system will pass into the upper end of the main axle on the chamber, the piston pushing broach parts move down, continue to compress the disc spring, handle downward movement, and through the tool changing manipulator with complete change knife. At the upper end of the cylinder, there are two proximity switch to detect the cylinder piston is in place; if the cylinder is not in place, then the two proximity switches will not signal the NC system will not continue to the next procedure, to ensure the safety of CNC machine tools.
The rotary joint is connected and air cooling water in the water and gas into the rotary joint before all the way with the on-off valve, OTT rod which is provided with holes, similar to the valve, the locking rod cutter, shift lever, waterway connected, pneumatic on-off valve closed, the water is turned on. The coolant through the tool cooling hole nozzle. Similarly, when the rod is loose, the pull rod is pushed forward first, the air path on the pull rod is connected, and the waterway is closed, and the cone and the end face of the main shaft are blown and cleaned at this time.
