AUTO TOOLS CHANGE WITH SPACE ALLOWANCE FOR TOOL REJECTION OF SPINDLE

摘要

An auto tools change with space allowance for tool rejection of spindle includes an arm seat, an arm shaft, a tools change arm, a flat cam, and a driving arm, while the flat cam has a driving groove for driving the driving arm to swing and thus facilitates the tool clamping and tool unclamping. Therein, the driving arm has a tool clamping section having an allowance groove, a first transition section, a tool unclamping section, and a second transition section. Therefore, a larger width of the allowance groove is provided on the driving groove, thereby offering a sliding space for the tools change arm. Thus, a space allowance is produced during tool pushing process, thereby not only preventing the main shaft and the tool from being damaged, but also preventing the tools change arm from deformation.

主权项

1. An auto tools change with space allowance for tool rejection of spindle, comprising:
an arm seat, with an arm shaft installed inside and thereby capable of rotating and axially sliding therein, while one end of the arm shaft exposes outward from the arm seat for being installed with a tools change arm; a flat cam, axially and rotatably disposed in the arm seat by a rotation axle, and concavely provided with a driving groove thereon, while the driving groove is formed by a tool clamping section, a first transition section, a tool unclamping section, and a second transition section that are orderly provided; and a driving arm, with one end thereof as a swinging end axially disposed in the arm seat and the other end thereof as a driving end, and a rolling member capable of moving in the driving groove disposed between the swinging end and the driving end, while the driving end is connected to the arm shaft for enabling the driving arm to make the arm shaft axially slide along the shape variation of the driving groove during the rotation of the flat cam, wherein the tool clamping section of the driving groove is provided with an allowance groove, whereby a larger width is offered to the driving groove, and an axial sliding space is thus produced for the tools change arm as a space allowance for the spindle to move during tool rejection.