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镗床和钻床的区别

2020-07-15 22:35来源:未知浏览:

镗床和钻床都是孔加工机床。他们的主要区别是抄所使用的刀具不同。镗床使用镗刀加工孔,钻床使用钻头钻孔。详细说来,钻床通常用于加工百尺寸较小,精度要求不太高的孔,在钻床上钻孔时,工件一般固定不动,刀具作旋转主运动,同时沿轴向作进给运动。而镗床通常用于加工尺寸度较大,精度要求较高知的孔,特别是分布在不同表面上,孔距和位置精度要求较高的孔,如各种箱体,汽车发道动机缸体等零件上的孔。一般镗刀的旋转为主运动,镗刀或工件的移动为进给运动。

1、镗床

主要用镗刀对工件已有的预制孔进行镗削的机床。通常,镗刀旋转为主运动,镗刀或工件的移动为进给运动。它主要用于加工高精度孔或一次定位完成多个孔的精加工,此外还可以从事与孔精加工有关的其他加工面的加工。

2、钻床

钻床指主要用钻头在工件上加工孔的机床。通常钻头旋转为主运动,钻头轴向移动为进给运动。钻床结构简单,加工精度相对较低,可钻通孔、盲孔,更换特殊刀具,可扩、锪孔,铰孔或进行攻丝等加工。

加工过程中工件不动,让刀具移动,将刀具中心对正孔中心,并使刀具转动(主运动)。钻床的特点是工件固定不动,刀具做旋转运动。

 

 

Both boring and drilling machines are hole processing machines. The main difference between them is that they use different cutting tools. Boring machine uses boring cutter to process holes, and drilling machine uses drill bit to drill holes. In detail, the drilling machine is usually used to process holes with small size and low accuracy requirements. When drilling on the drilling machine, the workpiece is generally fixed, and the tool rotates and feeds along the axial direction. The boring machine is usually used to process holes with large size and high accuracy requirements, especially for holes distributed on different surfaces, with high requirements for hole spacing and position accuracy, such as holes on various boxes, engine cylinder blocks and other parts. Generally, the rotation of boring tool is the main motion, and the movement of boring tool or workpiece is feed motion.

1. Boring machine

A machine tool that mainly uses boring cutter to bore the pre-existing holes of the workpiece. Generally, boring tool rotation is the main motion, and the movement of boring tool or workpiece is feed motion. It is mainly used for machining high-precision holes or finishing multiple holes at one time. In addition, it can also be used for machining other machining surfaces related to hole finishing.

2. Drilling machine

Drilling machine refers to the machine tool which mainly uses the drill bit to process holes on the workpiece. Generally, the rotation of the drill bit is the main motion, and the axial movement of the drill bit is the feed motion. The drilling machine has simple structure and relatively low machining accuracy. It can drill through holes and blind holes, replace special tools, expand, countersink, ream or tap.

During the machining process, the workpiece does not move and the tool moves. The tool center is aligned with the hole center and the tool is rotated (main motion). The characteristic of drilling machine is that the workpiece is fixed and the tool rotates.

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