Novel Z-axis structure of three-axis screw machine

The utility model discloses a novel Z-axis structure of a three-axis screw machine, which relates to the field of Z-axis structures of three-axis screw machines and comprises a workbench, an X-axis guide rail, a Y-axis guide rail, a Z-axis guide rail, a driving motor, a screw rod, a moving block and a lubricating mechanism. And an auxiliary mechanism. The lubricating mechanism is arranged, the output end of the driving motor slowly rotates to drive the extrusion rod to move upwards through mechanical transmission, the first spring is stressed and extruded, the extrusion rod moves and makes contact with the piston rod, the piston rod is driven to move upwards, and the piston rod moves to drive the piston block to move. And then the output end of the driving motor rotates reversely and drives the moving block to move downwards, the moving block moves and carries the lubricating oil at the contact position of the moving block and the lead screw to the outer wall of the lead screw, and through the structure, lubr