99国产成人高清在线视频-99国产成人精品2021-99国产大尺度福利视频-99国产福利-99国产福利视频区-99国产福利视频在线观看

繁體中文
首頁   >   News   >   Common problem

How to take effective measures to prevent deformation of CNC vertical lathe?

The CNC vertical lathe is designed with a high-rigidity structure. The X-axis of the machine tool is designed with an over-positioning movable column structure and equipped with three guide rails. It has a large load-bearing section, so that the machine tool has a high rigidity and shock absorption, which can ensure high-precision and high-load cutting. The design of high efficiency and low noise makes the spindle of the machine tool adopt frequency conversion or AC servo main motor direct drive, and some models can be equipped with stepless speed change gearbox to increase the slow cutting force of the spindle. The front and rear ends of the high-rigidity spindle adopt imported high-precision spindle bearings, select ideal span support, and apply appropriate pre-tightening load, so that the spindle has high precision, high rigidity and high-speed rotation capacity. The machine tool is equipped with imported high-rigidity hydraulic reliable turret, which has high reliability and repeated positioning accuracy.

The thermal characteristics of CNC vertical lathe is one of the important factors affecting the machining accuracy. Because the spindle speed and feed rate of vertical lathe are much higher than those of ordinary machine tools, and the influence of hot cutting caused by large cutting parameters on the heat conduction of workpieces and machine parts is much more serious than that of ordinary machine tools, and the influence of thermal deformation on the machining accuracy is often difficult to be corrected by operators.

Therefore, special attention should be paid to the measures to reduce the thermal deformation of the vertical lathe. The common measures are as follows:

1. Improve the layout and structural design of the vertical lathe

For example, a thermal symmetrical structure is adopted for the heat source; The numerical control vertical lathe adopt a structure of an inclined lathe bed, a flat lathe bed and an inclined sliding plate; Heat balance measures are adopted in some heavy duty CNC machine tools due to structural limitations.

2. Control the temperature rise

Heat dissipation, air cooling and liquid cooling are adopted to control the temperature rise of the heating parts of the vertical lathe (such as the spindle box, hydraulic oil of the hydrostatic guide rail, etc.) To absorb the heat emitted by the heat source, which is a countermeasure widely used in various CNC machine tools to reduce the impact of thermal deformation.

3. Forced cooling measures shall be taken for the cutting parts.

The amount of hot chips that fall on the worktable, bed and other components is an important heat source when cutting with large cutting volume. Modern CNC machine tools, especially machining centers and CNC vertical lathes, generally use multi-nozzle and large-flow coolant to cool and remove these hot chips, and use large-capacity circulation or cooling devices to cool the coolant to control the temperature rise.

4. Thermal displacement compensation

The law of thermal deformation is predicted, and the mathematical model is established and stored in the computer for real-time compensation?


主站蜘蛛池模板: 99视频在线观看视频一区 | 欧美一级视频免费 | 日本免费网站视频 | 99久久这里只精品国产免费 | 男女性高爱潮久久 | 好吊色青青青国产在线播放 | 国产高清一区二区三区免费视频 | 久久精品一区二区三区日韩 | 嫩草视频在线播放 | 日韩毛片网 | www.国产福利视频.com | 快播激情视频 | 欧美猛交lxxxxxxxxx | 特巨大黑人性xxx凶猛 | 久久青草91免费观看 | 国产精品嫩草影院午夜 | 乱在线伦视频免费 | 91中文字幕在线播放 | 亚洲精品一区二区三区婷婷月 | 免费人成年激情视频在线观看 | 亚洲综合一区二区 | 在线免费观看一区二区三区 | 天天干天天干天天操 | 日韩欧美亚洲综合久久99e | 久久婷婷综合中文字幕 | 黄色网址视频在线播放 | 日本爽快片100色毛片 | 四虎永久精品免费观看 | 黄视频在线观看免费视频 | 日本高清视频网站 | 日本肉肉视频免费观看 | 国产综合在线播放 | 一级特黄国产高清毛片97看片 | 天天爽夜夜爽人人爽 | 在线观看亚洲精品专区 | 亚洲欧美另类日本久久影院 | 婷婷99视频精品全部在线观看 | 天天干夜夜爽 | 在线观看日本永久免费视频 | 国产淫语 | 四虎影院永久网址 |