Machining method for steel structural part large in ratio of length to diameter

• Main Authors: CHEN YIHUI, XU ZHOU, YE CAIMING, HUANG XIUQING, ZHENG XUEZHU, YANG JIANHUI, CHEN YANFANG, HUANG QIANGFEI
• Format: Patent
• Language: Chinese; English
• Published: 09.03.2016
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a machining method for a steel structural part large in ratio of length to diameter. The method is used for carrying out milling and turning combined machining on the part with the ratio of length to diameter larger than twenty through a seven-axis milling and turning combined machine tool. The method comprises the steps that firstly, one end of a raw material bar is clamped and a first shaft end is machined at the extending part of the raw material bar; then the two ends are clamped and a middle shaft part is machined; and the other end is switched to be clamped and machined to obtain a second shaft end. Machining of the steel structural part large in ratio of length can be completed only by utilizing the existing seven-axis milling and turning combined machine tool without other auxiliary structures, only one time of positioning is needed, the positions do not need to be frequently changed to adjust clamping, the adjustment and alignment time is shortened, and the production efficien