The development of manufacturing market demands that 3-axis machining technology is never enough. As a highly automated intelligent processing equipment, 5-axis machining center is often used in high-end manufacturing. Five axis machining center is suitable for machining airframe parts of free-form surface, turbine parts of aircraft and ships and impeller. We can find that all the workpieces suitable for five axis machining center have the characteristics of high degree of curved surface and difficult to be processed and formed by one-time clamping. Therefore, the five axis machine tool can process the different sides of the workpieces without changing the position of the workpieces on the machine tool, greatly improving the processing efficiency of the prismatic parts. The five axis machining center has three moving axes x, y, Z and any two rotating axes. Compared with the traditional three axis machining center, the five axis linkage technology of the five axis machining center can locate and operate on five degrees of freedom when machining the workpiece with complex geometry.
很多朋友在了解五轴加工中心方面存在一个误区,认为五轴加工中心就是在三轴加工中心的基础上,添加2个旋转轴。这两个旋转轴先将切削刀具固定在一个倾斜位置,再由进给轴X、Y、Z进行移动和加工。这种加工方式实际上是由于第四轴和第五轴是用来确定在固定位置上刀具的方向,而不是在加工过程中连续不断的运行。因此这不是真正的五轴联动技术,3+2轴的加工中心可以满足普通加工中心无法完成的加工操作,但这也并不是真正的五轴加工中心。
Many friends have a mistake in understanding five axis machining center. They think that five axis machining center is to add two rotating shafts on the basis of three axis machining center. The two rotating axes fix the cutting tool in an inclined position, and then the feeding axes x, y, Z move and process. In fact, the fourth axis and the fifth axis are used to determine the direction of the tool in a fixed position, rather than continuous operation in the process of machining. Therefore, this is not a real five axis linkage technology. 3 + 2 axis machining center can meet the processing operations that ordinary machining centers cannot complete, but this is not a real five axis machining center.
真正的五轴加工中心具备刀点跟随功能,可以在不改变任何参数的情况下,确保高效的刀具的切削点和零件表面接触,避免造成切削陷坑。整个路径运动过程中可对刀具方向进行优化,同时进行刀具直线运动。这样,在整个路径上都可保持最佳切削状态。五轴加工中心在刀具应用和加工优化这一块也是非常重要,五轴加工中心目前在加工异面体加工、叶轮加工、箱体加工、齿轮加工、复杂腔体应用特别多。对一个国家的航空航天、军事科研、精密器械、汽车设备、高精医疗设备等领域有着举足轻重的影响力。
The real five axis machining center has the function of tool point following, which can ensure that the cutting point of the efficient tool contacts with the surface of the part without changing any parameters, so as to avoid the cutting pit. In the whole path movement process, the direction of the tool can be optimized, and the straight-line movement of the tool can be carried out at the same time. In this way, the best cutting state can be maintained in the whole path. Five axis machining center is also very important in tool application and machining optimization. At present, five axis machining center is widely used in machining different surfaces, impellers, boxes, gears and complex cavities. It plays an important role in aerospace, military research, precision equipment, automotive equipment, high-precision medical equipment and other fields of a country.
曲面制品关于现代人生活来说并不生疏,大到轿车、游艇美观漂亮的形体,小到手机、电脑鼠标之精美的外壳,曲面制品随处可见,并且花样、种类日益更新。曲面零件的出产进程离不开CNC数控机床。曲面产品在制作时,首先要由CNC数控机床加工出带有曲面形状的模具,然后由模具成批地复制出终究的产品。为此,CNC数控机床已成为当今现代化工业出产中最重要的机器设备。
Curved surface products are not new to modern life, ranging from beautiful shapes of cars and yachts to beautiful shells of mobile phones and computer mice. Curved surface products can be seen everywhere, and patterns and types are increasingly updated. The production process of curved surface parts is inseparable from CNC machine tools. In the manufacture of curved surface products, the mould with curved surface shape should be processed by CNC machine first, and then the final products should be copied by the mould in batches. Therefore, CNC machine tool has become the most important machine equipment in modern industrial production.
但是CNC数控机床加工曲面零件时的出产功率和加工质量并不尽如人意,原因是CNC数控机床必须使用球面铣刀,以防止刀具过切(即刀具将不应切除的工件资料刮掉,破坏了工件的造型)。球面铣刀之圆滑外表易于适应曲面零件的杂乱造型,不会与工件外表发作干涉,但是却严重地妨碍了CNC数控机床出产功率的正常发挥,一起也降低了产品的加工质量。长久以来,国内外专家、业者一直在研究代替球面铣刀、提高CNC机床出产功率的办法。端铣刀能够极大地提高CNC数控机床加工曲面制品时的出产功率,零件外表的加工质量也会得到根本性的改善。然而端铣刀的平直底面不易适应曲面零件的杂乱形状,会常常引发刀具的过切问题,形成工件产品的报废。因而实际出产中,端铣刀还没有被用于曲面零件的加工制作;并且在五轴刀具切削问题不能得到彻底解决以前,端铣刀根本无法使用于曲面零件的加工。
However, the production power and processing quality of CNC machine tools in machining curved parts are not satisfactory, because the CNC machine tools must use spherical milling cutter to prevent the cutter from over cutting (that is, the cutter scrapes off the information of the workpiece that should not be cut and destroys the shape of the workpiece). The smooth surface of the spherical milling cutter is easy to adapt to the disordered modeling of curved parts, and will not interfere with the surface of the workpiece. However, it seriously hinders the normal production power of CNC machine tools and reduces the processing quality of the products. For a long time, experts and manufacturers at home and abroad have been studying ways to replace the spherical milling cutter and improve the output power of CNC machine tools. The end milling cutter can greatly improve the output power of CNC machining curved surface products, and the machining quality of the part surface will also be fundamentally improved. However, the flat bottom of the end milling cutter is not easy to adapt to the disordered shape of curved parts, which often leads to the over cutting problem of the cutter and the scrap of workpiece products. Therefore, in the actual production, the end milling cutter has not been used in the processing and manufacturing of curved surface parts; and before the five axis cutting problem can not be completely solved, the end milling cutter can not be used in the processing of curved surface parts at all.
高效五轴铣刀切削曲面零件时刀具过切这一国际性技能难题已被本项目的创建人王印博士攻克,并树立起端铣刀快速切削曲面零件的有效办法。从而使端铣刀能够取代球面铣刀,自若地使用于曲面零件加工中。曲面快速切削这项先进技能的使用将从根本上改善曲面零件加工中CNC数控机床工时过高、加工质量过差、制作周期过长等种种不利因素,充分地发挥CNC数控机床的功能优势。本项目以使用曲面快速切削技能为基础,树立来料加工型出产企业,面向模具等曲面类零件使用最多的产品制作职业,供给曲面零件快速加工服务。以咱们高功率、高品质的服务赢得商场。在把曲面快速切削技能面向商场的一起,咱们还将尽力与国内各相关部分协作,尽快地制订出机械加工职业使用端铣刀代替球面铣刀的职业技能标准,并将其面向国际。
The international technical problem of cutter over cutting when the efficient five axis milling cutter is used to cut curved surface parts has been solved by Dr. Wang Yin, the creator of this project, and an effective method of rapid cutting curved surface parts with end milling cutter has been established. Thus, the end milling cutter can replace the spherical milling cutter and be used in the machining of curved surface parts. The application of the advanced technology of surface rapid cutting will fundamentally improve the disadvantages of CNC machine tools, such as high working hours, poor processing quality, long manufacturing cycle, etc., and give full play to the functional advantages of CNC machine tools. This project is based on the use of surface rapid cutting skills, to establish a manufacturing enterprise of incoming material processing type, to provide surface parts rapid processing services for the product manufacturing profession with the largest use of surface parts such as molds. With our high-power, high-quality service to win the market. We will also try our best to work with all relevant parts in China to develop the professional skill standard of using end milling cutter instead of spherical milling cutter for machining profession as soon as possible and face it to the international market.
曲面快速切削技能的使用领域非常广泛,涉及到所有现代化制作职业,如航天、航空工业,现代医疗、仪器制作业,轿车、轮船制作业,电子、电器、发电职业,塑料、橡胶工业等等;特别是,被称之为“工业之母”的模具,其制作进程更离不开先进的曲面零件CNC数控机床
The application field of surface rapid cutting technology is very wide, involving all modern manufacturing professions, such as aerospace, aviation industry, modern medical treatment, instrument manufacturing, car and ship manufacturing, electronics, electrical appliances, power generation, plastics, rubber industry, etc.; especially, the mold called "industrial mother" cannot be made without advanced surface parts CNC Numerical control machine
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