Laser welding mechanism

A laser welding mechanism (A) comprising:

• a body (1) having a space (11) formed therein, two securing devices (12) respectively connected to two ends of the body (1);
• a linkage assembly (2) comprising a bearing (21) and a tube (22), the bearing (21) connected to two seats (13) on the body (1), the tube (22) connected to the bearing (21) and located within the space (11) of the body (1), the tube (22) having a slot (223) defined through a wall thereof;
• a refraction mirror unit (3) with two mirrors (31, 31a) each being connected to the tube (22) of the linkage assembly (2);
• a laser unit (4) pivotally connected to a swinging member (41), the swinging member (41) having a connecting part (43) connected to the tube (22) of the linkage assembly (2), the laser unit (4) located corresponding to the slot (223) of the tube (22);
• a drive unit (5) comprising a motor (51), a driving gear (52), and a driven gear (53), the motor (51) connected to the driving gear (52) which is engaged with the driven gear (53), the driven gear (53) connected to the swinging member (41), and a rotation unit (6) connected to the swinging member (41) of the laser unit (4) and driving the laser unit (4) to rotate an angle.