| 摘要 |
The new tube-cutting machine includes a pivotable frame. A tube-cutting arbor, mounted in the frame, is used to penetrate the inside of the tube to be cut. After penetration, the tube-cutting arbor is rolled about the inside of the tube while shearing the tube for a complete cycle to shear off the end of the tube. At the end of the cycle, the shearing is automatically stopped, and the pivotable frame returned to its first position. |
