论文部分内容阅读
笔者在设计组合镗床过程中,遇到了镗轴承孔且在孔内切卡簧槽的实际问题。若是在精镗后再上车床切槽,就会增加加工成本,加工质量难以控制。为此,设计了一种简单实用的复合镗刀(如图所示)。 1.结构原理该镗刀由主轴接杆1通过浮动卡头与主轴相连接。拨杆3与接杆1和刀杆10连接,且可在接杆1上的曲线槽内滑动。切槽刀装夹在滑块5上,滑块可作径向移动。弹簧2的最小工作载荷稍稍大于精镗刀4的轴向进给力与摩擦力之和。刀杆10在精镗刀4完成镗孔后,调节螺母9至档住导向套7止,使精镗刀4不再轴向进给,而主轴接杆1则继续前进,由曲线槽推动圆柱销,通过拨杆3拨动滑块5径向移动至切槽深,切槽完毕后,由弹簧2的作用,使滑块复位。 2.特点 (1)镗孔精度由导向套7保证,安全可靠;切槽位置尺寸靠刀具保证,位置准确。
The author in the design process of combination boring machine, encountered boring bearing hole and cut the spring in the hole of the actual problem. If the boring machine after fine boring slot, it will increase the processing costs, processing quality is difficult to control. To this end, the design of a simple and practical composite boring tool (as shown). 1. Structural principle The boring knife from the spindle post 1 through the floating chuck connected with the spindle. The shift lever 3 is connected with the rod 1 and the rod 10 and can slide in the curve groove on the rod 1. Grooving knife installed in the slider 5, the slider can be used for radial movement. The minimum working load of the spring 2 is slightly greater than the sum of the axial feed force and the frictional force of the fine boring tool 4. After the boring bar 10 is completed by the fine boring tool 4, the adjusting nut 9 is stopped until the guide sleeve 7 stops, so that the fine boring tool 4 no longer feeds axially, and the spindle post 1 continues to advance and the cylinder is pushed by the curved groove Pin, through the shift lever 3 to move the slider 5 to move radially to the slot depth, slotted by the spring 2, the slider reset. 2. Features (1) Boring accuracy guaranteed by the guide sleeve 7, safe and reliable; cutting slot size by the tool to ensure that the location is accurate.