Assembled chamfer mill
OwnerHsin-Tien Changinventor
Life of this patent
Estimating the term…
Abstract
An assembled chamfer mill comprises a tool holder, an extension shaft, and chamfer bits locked to two ends of the extension shaft. The chamfer bits each have upper blades and lower blades for chamfering the edges of a workpiece simultaneously. The length of a shaft body of the extension shaft may be set in various sizes. Depending on the thickness and shape of the workpiece, the shaft body having an appropriate length is selected, so as to control the distance between the two chamfer bits. Another extension shaft may be provided to connect a further chamber bit for chamfering the edges of the workpiece simultaneously.
Claims10
An assembled chamfer mill, configured to chamfer a workpiece, comprising:
- a tool holder, having its one end recessed with a tool holder inner taper hole and a tool holder inner screw hole extending inwardly from the tool holder inner taper hole;
- a chamfer bit, having opposing two ends formed with a cylindrical hole and a chamfer bit inner taper hole communicating with the cylindrical hole, one end of the chamfer bit having a taper top, a plurality of upper blades and a plurality of lower blades being arranged annularly on the chamfer bit;
- the chamfer bit being connected to the tool holder, the taper top being fitted with the tool holder inner taper hole so that the cylindrical hole and the chamfer bit inner taper hole communicate with the tool holder inner taper hole and the tool holder inner screw hole;
- a screw bolt, having opposing two ends provided with a screw thread and a screw bolt taper rod, the screw bolt being inserted into the chamfer bit inner taper hole and the cylindrical hole of the chamfer bit so that the screw thread is engaged with the tool holder inner screw hole of the tool holder and the screw bolt taper rod is fitted with the chamfer bit inner taper hole, thereby locking the chamfer bit.
Dependencies are inferred from the claim text.