Press fitting tooling for gear shaft

The invention discloses a press fitting tooling for a gear shaft. The press fitting tooling comprises a press machine and an aligning mechanism, wherein the press machine is used for pressing the gearshaft to a corresponding casing; the aligning mechanism comprises a drive part and a clamping part for clamping the gear shaft, the drive part is used for driving the clamping part to align the gearshaft and a to-be-pressed piece; the press fitting tooling further comprises a supporting mechanism, and the supporting mechanism comprises a supporting part used for supporting the to-be-pressed piece and bears press fitting force of the press machine; when the to-be-pressed piece is supported and positioned at the supporting part and the clamping part clamps the gear shaft and is located in thepress fitting position, the gear shaft is coaxial with the to-be-pressed piece. According to the scheme, the drive part of the aligning mechanism can drive the clamping part to move to the press fitting position, and the gear s