An automatic nut tapping equipment is provided. The automatic nut tapping equipment includes a tap rotating mechanism, a nut clamping mechanism, an axial transmission mechanism, and a nut placing slot. The tap rotating mechanism includes a tap rotary motor and a tap, wherein the tap is driven by the tap rotary motor. The nut clamping mechanism includes a clamping assembly and a sliding rail, wherein the clamping assembly is disposed on the sliding rail and is configured for clamping a to-be-tapped nut to restrict the to-be-tapped nut from rotating. The axial transmission mechanism controls the clamping assembly to axially translate one pitch in response to the tap rotating one revolution, such that a forward nut-tapping motion and a backward nut-retracting motion are performed by the nut clamping mechanism. The nut placing slot is configured to arrange and control the dropping of another to-be-tapped nut.

An automatic nut tapping equipment is provided. The automatic nut tapping equipment includes a tap rotating mechanism, a nut clamping mechanism, an axial transmission mechanism, and a nut placing slot. The tap rotating mechanism includes a tap rotary motor and a tap, wherein the tap is driven by the tap rotary motor. The nut clamping mechanism includes a clamping assembly and a sliding rail, wherein the clamping assembly is disposed on the sliding rail and is configured for clamping a to-be-tapped nut to restrict the to-be-tapped nut from rotating. The axial transmission mechanism controls the clamping assembly to axially translate one pitch in response to the tap rotating one revolution, such that a forward nut-tapping motion and a backward nut-retracting motion are performed by the nut clamping mechanism. The nut placing slot is configured to arrange and control the dropping of another to-be-tapped nut.

A tapping machine (10), for tapping perforated products such as nuts (14), bushings or the like, comprises a spindle (11) on the longitudinal axis (12) of which a tapping tool (13) is rotatably mounted which tapping tool (13) is provided with a stem (21) having a longitudinal axis and a head having a threading to be inserted inside an appropriate hole provided in a nut (14) to be threaded, as well as pusher devices (16) for pushing a nut (14) against the threading surface of the tapping tool (13). Said machine further comprises an anti-vibration centring group (19) which acts on the stem of the tapping tool (13), substantially constraining the tapping tool (13) in a radial direction, preventing a de-alignment of the longitudinal axis (12) of the stem of the tapping tool and maintaining freedom of rotation thereof. Said anti-vibration centring group (19) is selectively movable along the stem of the tapping tool (13) in a parallel direction to the longitudinal axis of said stem (21).