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常见问题 所在位置: 首页-新闻资讯-常见问题-数控机床选择加工刀具时应考虑哪方面的问题?

数控机床选择加工刀具时应考虑哪方面的问题?

发布时间:2021-08-31 来源:http://www.jnskdj.com/ 作者:admin

在选择标准数控刀具时,应结合实际情况,尽可能选用各种先进刀具,如可转位刀具、整体硬质合金刀具、陶瓷刀具等。今天,数控刀具回收厂小编就为大家简单介绍一下。

When selecting standard NC tools, various advanced tools should be selected as far as possible in combination with the actual situation, such as indexable tools, integral cemented carbide tools, ceramic tools, etc. Today, the small editor of CNC tool recycling factory will give you a brief introduction.

在选择数控机床加工刀具时,还应考虑以下几方面的问题:

When selecting NC machine tools, the following aspects should also be considered:

(1)数控刀具的类型、规格和精度等级应能够满足加工要求,刀具材料应与工件材料相适应。

(1) The type, specification and accuracy grade of NC cutting tools shall meet the processing requirements, and the cutting tool material shall adapt to the workpiece material.

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(2)切削性能好。为适应刀具在粗加工或对难加工材料的工件加工时能采用大的背吃刀量和高进给量,刀具应具有能够承受高速切削和强 力切削的性能。同时,同一批刀具在切削性能和刀具寿命方面一定要稳定,以便实现按刀具使用寿命换刀或由数控系统对刀具寿命进行管理。

(2) Good cutting performance. In order to adapt to the large back feed and high feed of the tool during rough machining or workpiece machining of difficult machining materials, the tool shall be able to withstand high-speed cutting and strong cutting. At the same time, the cutting performance and tool life of the same batch of tools must be stable in order to change tools according to tool life or manage tool life by NC system.

(3)精度高。为适应数控加工的高精度和自动换刀等要求,刀具必 须具有较高的精度,如有的整体式立铣刀的径向尺寸精度高达0.005mm。

(3) High precision. In order to meet the requirements of high precision of NC machining and automatic tool change, the tool must have high precision. For example, the radial dimension accuracy of some integral end mills is as high as 0.005mm.

(4)可靠性高。要保证数控加工中不会发生刀具意外损伤及潜在缺陷而影响到加工的顺利进行,要求刀具及与之组合的附件必 须具有很好的可靠性及较强的适应性。

(4) High reliability. In order to ensure that unexpected tool damage and potential defects will not affect the smooth progress of machining in NC machining, the tool and its combined accessories must have good reliability and strong adaptability.

(5)耐用度高。数控加工的刀具,不论在粗加工或精加工中,都应具有比普通机床加工所用刀具更高的耐用度,以尽量减少更换或修磨刀具及对刀的次数,从而提高数控机床的加工效率和保证加工质量。

(5) High durability. The tools for NC machining, whether in rough machining or finish machining, should have higher durability than the tools used in ordinary machine tools, so as to minimize the number of tool replacement or grinding and tool setting, so as to improve the machining efficiency of NC machine tools and ensure the machining quality.

(6)断屑及排屑性能好。数控加工中,断屑和排屑不像普通机床加工那样能及时由人工处理,切屑易缠绕在刀具和工件上,会损坏刀具和划伤工件已加工表面,甚至会发生伤人和设备事故,影响加工质量和机床的安 全运行,所以要求刀具具有较好的断屑和排屑性能。

(6) Good chip breaking and chip removal performance. In NC machining, chip breaking and chip removal can not be handled manually in time like ordinary machine tool machining. Chips are easy to wrap around the tool and workpiece, which will damage the tool and scratch the machined surface of the workpiece, and even hurt people and equipment accidents, affecting the machining quality and the safe operation of the machine tool. Therefore, the tool is required to have good chip breaking and chip removal performance.