| 摘要 |
A carbon dioxide welding machine is provided to enable defective parts to be easily repaired or replaced by obtaining a required speed reduction ratio through a simple structure without using a plurality of gears or shafts, increase the working efficiency of workers by reducing weight of the welding machine, and perform precision welding. A carbon dioxide welding machine comprises: a drive motor(10) in which an encoder is installed; a reduction gear unit for receiving a drive force by the drive motor; a wire feeding unit(30) for receiving a reduced rotary power by an output shaft of the reduction gear unit; and a frame(40) on which the wire feeding unit is installed, and which has a control box installed on the front thereof. The reduction gear unit includes: a drive shaft having a worm formed on one side thereof; a speed reduction gear formed as a worm gear and rotatably engaged with the worm of the drive shaft; and a speed reducer housing for housing the worm and the speed reduction gear. The wire feeding unit includes: a fixed bracket on which a drive unit is installed, and in which an inlet and an outlet are oppositely formed; a rotary bracket of which one side is rotatably connected to an upper portion of the outlet, and on which a driven unit engaged with the drive unit is installed and rotated to transfer a welding wire(50); and a pressing lever which is rotatably connected to an upper portion of the inlet, and closely adheres the other side of the rotary bracket to the fixed bracket. The pressing lever includes a rotation bar, a pressing body, a coil spring, and a rotary body.
|
