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unitConventionalMachiningProcess要点.ppt
The cross slide is mounted on the dovetail guideways on the top of the saddle and it moved back and forth at 90°to the axis of the lathe by the cross slide lead screw. The lead screw can be hand or power activated. dovetail 燕尾槽 5.2 Turning and Lathe 横拖板安装在刀架鞍板上部的燕尾槽导轨上。它利用横拖板丝杠于车床轴线成90度夹角的方向上前后移动。丝杠可以手动或者自动驱动。 The compound rest is mounted on the cross slide and can be swiveled and clamped at any angle in a horizontal plane. The compound is typically used for cutting chamfers or tapers, but must also be used when cutting thread. The compound rest can only be fed by hand. There is no power to compound rest. The cutting tool and tool holder are secured in the tool post which is mounted directly to the compound rest. swivel [sw?v?l] v.旋转 5.2 Turning and Lathe 小刀架安装在横拖板上,它可以在水平面内转动或夹紧在任意角度位置。小刀架主要用来倒角和加工锥面,在车削螺纹时也必须用到小刀架。小刀架只能手动进给,没有动力传到小刀架上。刀具和刀夹被卡紧在直接安装在小刀架上的刀座上。 The tool saddle is an H shaped casting mounted on the top of the guideways and houses the cross slide and compound rest. It makes possible longitudinal, cross and angular feeding of the tool bit. 5.2 Turning and Lathe 刀架鞍板是一个安装在导轨上部的H形铸件,容纳有横拖板和小刀架。它可以实现刀尖的纵向、横向和斜向进给。 The apron is attached to the front of the carriage and contains the gears and feed clutches which transmit motion from the feed rod or lead screw to carriage and cross slide. When cutting screw threads, power is provided to the gearbox of the apron by the lead screw. In all other turning operations, it is the feed rod that drives the carriage. 5.2 Turning and Lathe 溜板箱位于拖板的前端,里面装有齿轮和将运动从光杠或丝杠传递至拖板或横向拖板的进给离合器。当切制螺纹时,动力通过丝杠传递到溜板箱中的变速齿轮箱。在其它车削加工时,依靠光杠来驱动拖板。 Tailstock is composed of a low base and the movable part of the tail-stock proper, the transverse adjustments being made with a cross screw furnished with a square head. The two parts are hold together by the holding-down bolts which secure the tailstock to the bed. transverse adj. 横向的,横切的; n. 横轴 holding-down bolts 压紧螺栓 5.2 Turning and Lathe 尾座由底座和尾座体的可移动部件组成。课移动部件的横向调整有带有四方头的横向丝杠来完成。底座
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