초록 ▼

A mobile device for simultaneously cutting and chamfering a pipe is provided having a frame, at least one pipe collet-clamp attached to the frame and defining a principal axis, a split carriage rotatably mounted with respect to the frame about the axis and adjacent to the clamp(s), a router affixed

A mobile device for simultaneously cutting and chamfering a pipe is provided having a frame, at least one pipe collet-clamp attached to the frame and defining a principal axis, a split carriage rotatably mounted with respect to the frame about the axis and adjacent to the clamp(s), a router affixed to the split carriage and having a cutting-chambering bit, and a drive motor for rotating the carriage. The router orbits around the pipe and simultaneously cuts it into two chamfered pipes. A method is also provided for cutting through a pipe and chambering the cut ends thereof.

대표청구항 ▼

The invention claimed is: 1. A mobile device for simultaneously cutting and chamfering a pipe, the improvement comprising: a mobile frame; a pair of pipe collet-clamps attached to the frame and defining a principal axis; a split carriage rotatably mounted with respect to the frame about the axis an

The invention claimed is: 1. A mobile device for simultaneously cutting and chamfering a pipe, the improvement comprising: a mobile frame; a pair of pipe collet-clamps attached to the frame and defining a principal axis; a split carriage rotatably mounted with respect to the frame about the axis and between the clamps; a router affixed to the split carriage and having a cutting-chamfering bit; and a drive motor for rotating the carriage; whereby the router orbits around the pipe simultaneously cutting it into two chamfered pipes. 2. The device of claim 1 further comprising pipe-end supports attached to the frame on opposite sides thereof. 3. The device of claim 1 wherein the router has spring-loaded pipe-follower pins on either side of the bit to force the bit away from the pipe during out-of-round pipe conditions. 4. The device of claim 1 wherein the router is spring-loaded thereby to accommodate out-of-round pipe conditions. 5. The device of claim 4 wherein the router has spring-loaded pipe-follower pins on either side of the bit to force the bit away from the pipe during out-of-round pipe conditions. 6. The device of claim 1 wherein the carriage has pipe-contact rollers thereon to facilitate relative rotation with the pipe. 7. The device of claim 1 wherein the frame has carriage-guide rollers thereon to maintain the axial position of the carriage. 8. The device of claim 1 wherein the drive motor rotates the carriage in forward and reverse directions. 9. The device of claim 1 further including a set of interchangeable collet-clamps to accommodate common pipe sizes. 10. A device for simultaneously cutting and chamfering a pipe, the improvement comprising: a mobile frame; a pair of pipe supports attached to the frame and defining with the pipe a principal axis; a split carriage mounted with respect to the frame relatively rotatable with respect to the supported pipe about the axis and, in the axial direction, between the pipe supports; a router affixed to the split carriage and having a cutting-chamfering bit; and a drive motor for motivating relative orbital rotation of the carriage around the pipe; whereby the pipe is simultaneously cut into two chamfered pipes.