What are the characteristics of CNC Gear Hobbing Machine?
(1) Small batch single-piece production of cylindrical bevel gears and worm gears can roll spline shafts within a certain parameter range.
(2)Can be easily adjusted to automatic parking facilities.
(3) Reliable safety devices and automatic lubricating rollers are the most widely used machines in gear processing machines. They can cut spur and helical gears on Gear hobbing machines, as well as machine worm gears and sprockets.
What are the classifications of gear hobbing machines?
Gear hobbing machines are divided into vertical and horizontal types according to their layout. Large and medium-sized rolls are mostly vertical, while small rolls and long-axis gear processing rolls are horizontal. Vertical gear hobbing machines are divided into two types: table movement and column movement. When the vertical gear hobbing machine is working, the hob is installed on the hob spindle and rotates driven by the main motor. The bracket can move vertically along the column rails and adjust its angle around the horizontal axis. The workpiece is installed on the workbench, driven to rotate by the pitch worm gear pair, and forms motion together with the movement of the hob. As the teeth tilt, the differential mechanism will further rotate the workpiece accordingly. The worktable (or column) can roll along the bed to accommodate different workpiece diameters and radial transfer. Some hobbing machine chucks can also move along the hob axis, using tangential feed to process the worm gear. Large gear hobbing machines also have single-tooth indexing mechanisms for processing herringbone gears, finger milling cutter holders, and differential switching mechanisms.
The extended outer hub bevel gear milling machine adopts the method of unfolding the extended outer hub bevel gear milling cutter or double-body combined end milling cutter, and uses a continuous indexing gear processing machine. During cutting, the workpiece of the table milling disc continuously rotates, and at the same time, the workpiece table is processed once through the transfer action of the worktable. The continuous rotation of the milling workpiece enables the workpiece to obtain a certain number of teeth for continuous indexing, forming a tooth length curve. The additional motion of the worktable rotating the workpiece is synthesized to produce motion, so that the workpiece obtains a tooth curve.
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