Beam-adjustable laser-assisted turning device and machining method

A beam-adjustable laser-assisted turning device, comprising a lathe X/Y-axis moving platform, a lathe tool changing and positioning table, a beam-adjustable turning tool module, a beam fixing module, a laser beam emission module, and a modulatable laser generator;

• wherein the lathe tool changing and positioning table is fixed at a position above and on a side of the lathe X/Y-axis moving platform;
• the beam-adjustable turning tool module is fixed on a side of the lathe tool changing and positioning table;
• and the beam-adjustable turning tool module is provided with a turning tool insert, a laser beam directional hole, and the laser beam emission module;
• the beam fixing module is fixed above the lathe X/Y-axis moving platform and on a side of the lathe tool changing and positioning table;
• the laser beam emission module is fixed on a side of the lathe tool changing and positioning table and the beam-adjustable turning tool module via the beam fixing module, and a laser emission port of the laser beam emission module is maintained in a coaxial position with the laser beam directional hole to achieve a function of coaxial transmission of a laser beam;
• the modulatable laser generator is connected to a beam receiving port of the laser beam emission module through a laser fiber to achieve a function of laser beam input;
• the beam-adjustable turning tool module comprises a detachable turning tool insert, an insert fixing pressure plate, a turning tool shank, the laser beam directional hole, a beam regulation lens mounting internal groove, a detachable collimating lens, and a collimating lens mounting plate;
• the detachable turning tool insert is mounted on the insert fixing pressure plate;
• the insert fixing pressure plate is mounted on an upper side of the turning tool shank;
• the laser beam directional hole is located at a front end of the turning tool shank;
• and the detachable collimating lens is fixed on an inner side of the collimating lens mounting plate by means of flexible bonding, and the collimating lens mounting plate is fixed in the beam regulation lens mounting internal groove of the turning tool shank via clearance fit to achieve a function of laser beam regulation;
• and
• the turning tool shank comprises a shank body, and a front end of the shank body protrudes laterally to form a front mounting portion;
• and the detachable turning tool insert is mounted at a corner position of the front mounting portion, the beam regulation lens mounting internal groove is disposed in an interior of the front mounting portion, and the beam regulation lens mounting internal groove penetrates a side surface of the shank body, so that the collimating lens mounting plate is capable of being inserted into the beam regulation lens mounting internal groove from the side surface of the shank body to an interior of the shank body, and a laser beam directional hole is disposed on the front mounting portion, and the laser beam directional hole allows a laser emitted by the laser beam emission module to pass through the collimating lens.