不锈钢攻牙应如何选择机器转速  不锈钢钻孔攻牙除丝攻本身因素制约外,另外受很多其他条件影响,主要表现在:攻牙前底孔径、机械转速、冷却液、机械本身等。今天,BINDE宾得动力头能跟大家讲述的是机械转速对不锈钢攻牙的影响。  动力头主轴转速是指刀具在一定时间内运行速度,包括纵向运行与横向运行.        对高硬度材质与难切削材料钻孔攻牙时,主轴旋转速度与给进转速相互匹配,(以M2作为例子 ):M2*0.75 攻牙作业时,丝攻主轴电机旋转旋转一圈,给进电机纵向前进0.75MM。  BINDE宾得攻牙动力头内置可选择的攻牙和牙距参数,提前设置好机壳按照匹配参数进行攻牙攻丝作业   转速计算:      以不锈钢材料进行说明:转速大小决定丝攻寿命长短,生产成本高低。不同的材料适合用不同的转速,即使丝攻相同,材料相差,主轴转速差别也很大。        那么如何选择呢,具体计算如下:  机械转速=攻牙速度*1000/3.14*D  (其中1000为系数,3.14为系数,D为丝攻直径)  第一类:303不锈钢: 推荐使用丝攻SU-SP,SU+SP,SUXSP三款,  当丝攻为SU-SP时,丝攻为M3时,攻牙速度5m/min(机械转速=5m/min*1000/3.14*D=5*1000/3.14*3=530转/分).  第二类、304不锈钢:推荐丝攻为SU+SP,当丝攻为M3时,攻牙速度为5m/min-10m/min,机械转速为: 8m/min*1000/3.14*3=875转/分 , 攻牙 转速取中间值.  第三类、316不锈钢:推荐丝攻为SU2+SP,SUXSP两款,当丝攻外径为M3时,攻牙速度为10-15m/min,机械转速为: 13m/min*1000/3.14*3=1422转/分.  故在选择合适的攻丝攻牙转速对于不同的硬度材料,均需要不同的合适工作转速,需要根据不同的需求,选择合适的BINDE宾得攻牙动力头的匹配转速!
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在机械加工的中,钻孔以及攻牙加工是一种常见的加工工艺。在多个零件联系在一起,往往需要合适的螺牙螺杆才能方便紧固的链接在一起,因此,孔内必须要有合适的螺纹,才可固锁螺丝。      攻牙通常是在一般的工具机上进行,例如: 攻牙动力头机,铣床,数控重型等。可是,使用通常的工具机在大量生产的钻孔攻牙作业而言,效率会很低,且工件的上料下料以及装夹会变得费时费工。      攻牙动力头加工的方法与钻孔不一样。首要要选用准确标准的丝攻(刀具),再者主轴的旋转有必要调配恰当的进给,才能加工为需要的螺纹的轨道。有三种方法能够实现攻牙动作:      1. 一对齿轮,一个连接滚动轴,一个连接进给轴。所以刀具滚动及行进能够变成螺纹轨道。      2. 主轴的尾端连接一个牙规。牙规在螺帽中,行进撤退。因为螺帽固定于动力头本体,不旋转。所以当牙规旋转时,它就会推进主轴,按照牙纹的轨道旋转行进。      3. 双伺服攻牙:在旋转轴及进给轴各运用一个伺服马达驱动,分别通过不同的驱动器在控制旋转转速。电机系统控制,主轴转速及合作进给速度,使得主轴的滚动行进构成螺纹。因应量产化的需要,在三十年前在台湾首要开发攻牙动力头,供给业界运用。从早期早的攻牙动力头F6N-60开端,此后陆续开发制作不一样尺度的攻牙动力头。因为每一个客户所运用的环境及条件的不一样,从原有的动力头衍生出不一样尺度,不一样主轴鼻端型式,不一样传动方法的动力头。因而当前的机种能够含盖攻牙范围,从M1 ~ 4”PT。是当前机种*完好的专业制作商。      以下是BINDE宾德攻牙动力头的优势特点:一、 构造本体     1. 选用高等级铸件。     2. 通过热处理以后,耐磨而且不易变形。二、 机械加工     1. 选用优质母床来加工,轴套等各个部件加工尺度准确。     2. 尺度准确,各个产品一致性好。三、 攻牙方法     1. 牙规     2. 伺服四、 齿轮及牙规攻牙方法的对比      齿轮式: 由马达传动到主轴一起要通过牙距齿轮,中心起码要通过八个齿轮。通常八个齿轮的累计差错会超越0.4 mm。所以要用绷簧顶住,避免差错过大。因为齿轮的误差较大,一般在使用一段时间后,此轮空隙就会发作。所以齿轮组需要不定期的替换。      牙规式: 是由一组牙规连接在主轴的尾端。当螺杆在螺帽中滚动,螺杆就会按照螺纹轨道推进主轴行进。因为牙规选用高强度材料并施以精细加工,因而螺杆及螺帽的紧密度合作。马力耗费少,效率高。传动的过程中,不需要通过其它传动的零配件,因而没有背隙及噪音的疑问
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什么是伺服钻孔攻牙动力头?  BINDE宾得“伺服系列钻孔攻牙动力头”的开发理念及特点BINDE宾得双伺服式钻孔攻牙动力头不仅能够提高加工效率、提升加工精度、最大限度减少毛刺,而且能够实现多品种、多规格对应,是具有出色通用性的数控式钻孔攻牙动力头。1.追求高速切削·  提高钻孔攻牙动力头的主轴转速。·  除机械原点外,也可设定加工原点(第2原点)。·  可支持硬质合金钻头、特殊滚压头的加工。2.追求通用性· 可任意调整主轴转速和进给速度的钻削动力头。· 支持Z轴的长行程。3.追求高精度、高刚性·  采用了也可进行铣削加工、端面加工的高刚性结构。4.追求小型化· 将钻孔攻牙动力头的全长缩短至极限,结构紧凑。5.追求低成本·  通过将钻孔攻牙动力头的结构简单化,与以往钻孔攻牙动力头和部件的共通化,降低成本。 特点1.无主轴转速和进给速度的任意设定“伺服系列钻孔攻牙动力头”使用专用伺服控制主轴转速,使用专用控制器攻牙程序控制进给速度。因此,可任意设定主轴转速、进给速度,以配合切削刀具达到最佳的加工效果。1. 刀具的磨损较少由于通过机电式机构进行的加工切削进给固定,因此刀具刀口所受到的切削阻力也固定,因此减少了刀具的早期损耗。2. 孔位置精度的稳定通过在开始切削时减缓进给速度,可减少刀具咬合时的偏离情况,实现稳定的孔位置精度。3. 减少毛刺通过在刀具贯穿时减缓进给速度,可减少毛刺的产生。4. 实现高精度的深孔加工由于在进行深孔加工时,可任意设定步骤次数,因此可实现高精度的深孔加工。5. 无振纹产生在通过组合刀具的钻孔加工后的锪圆柱沉孔、倒角加工中,未产生振纹。2.标准配置了13种加工模式“伺服系列钻削动力头”采用了标准配置步进钻削、反面加工、间跳(间跳式进给 )加工等13种加工模式的多功能设计。选择相应的加工模式,只需输入“主轴转速”、“切削加工时的进给速度”、“全行程”等数据的相应参数,即可简单地使其运作。此外,可登录99种程序,在使用时指定程序号,即可立即进行加工。模式实例 3.实现高精度、高刚性采用了通过滑动部位保持主轴的端面部分,并通过导轨保持后端部分的本公司独特的保持机构(PAT.),大幅提高了主轴的径向刚性和扭转刚性 。结果,在使用铣削的锪圆柱沉孔加工中,实现了良好的加工,并未产生振纹。使用铣削的加工样品 4.紧凑设计和长行程“伺服系列钻孔攻牙动力头”采用了机内电动机,在确保了Z轴的长行程的同时,也成功实现了小型化。BINDE宾得BD型与本公司传统机器相比,Z轴的行程增加至2倍,全长缩短至2/3.与传统机器相比,  《伺服钻削》动力头使用实例“伺服钻削动力头”BINDE宾得BD3通过组合客户所准备的XY滑动装置,可制作成本低,通用性高的加工机。使 用 实 例
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随着高性能电子设备和设备创新的加速,电子行业的发展在全球的发展中迈出了一步。电子创新正在蓬勃发展,无论是汽车,军事,航空航天,国防,海洋,电信和许多其他领域。电子设备中使用的基础和主要产品之一是高密度互连(HDI)构建印刷电路板。这些PCB在每层上的绞线之间具有导电性,其由内部层通孔控制。这是电路钻孔在PCB布局和制造中起着至关重要的作用。本文是电路板钻孔基础知识的指南。它突出了钻井技术的当前趋势。几十年前,PCB板钻孔钻孔是通过简单的钻床完成的。钻孔操作员必须手动移动面板以调整和校正x和y坐标并拖动杠杆进行钻孔,这是一项耗时的操作。随着技术的进步,成为电子市场中的不变事件,引入了新的钻孔技术,现在,PCB足以拥有超过10000个不同尺寸的钻孔。让我们更多地了解PCB布局和PCB制造中的钻孔操作。钻孔       当通常在板底上钻孔以热和电连接板层时被称为在电路板上钻孔。连接电路板层时的这些孔称为过孔。在PCB制造过程中执行钻孔操作的主要目的是插入通孔元件引线或连接板层以在PCB上形成平滑电路。从一开始,这就成为项目的关键部分,包括决定PCB布局,要使用的材料,制造PCB的方法以及连接电路板层所需的过孔类型。采取一个错误的步骤可能被证明是一个代价高昂的事情,因为痕迹上的一个撕裂或损坏可能导致显示失败,最终会更多地使用该批次生产中的材料和缺陷。钻孔机和钻孔技术       多年来,通过技术创新,钻孔过程变得简单。现在PCB钻孔可以用小直径钻头,自动钻孔机,数控钻孔机和许多其他有效的钻孔机器完成,适合多种类型电路板的PCB制造。自动钻孔攻牙机可以通过用计算机控制钻孔操作来钻孔电路板上的孔。当需要钻出不同尺寸和直径的多个孔时,数控机床是节省时间和生产成本的有效解决方案之一。使用BINDE宾德钻孔攻牙动力头作业PCB电路板具备,高精密细孔加工,使用快速上料下料机构,可以大大提升作业效率,降低作业成本。在钻孔注册孔的情况下,确保在钻孔上进行进一步钻孔。内层垫的中心将是精确的,使用X射线钻。当通孔将铜层连接在一起并在引线元件上钻孔时,使用该技术。如果通孔直径很小,使用机械钻头会导致电路板上的断裂增加转而增加成本。因此,研究人员已经提出了一种激光钻孔技术,以获得钻孔微孔的精确解决方案,而不会在电路板上破损。当钻入非常小的孔,板和与板层连接时,它们被称为微通孔。目前广泛使用的钻井技术之一是CO2激光钻孔,用于钻孔和加工内层通孔。如果要钻孔仅用于连接一些铜层而不是通过整个电路板,可以在PCB层压或激光钻孔机构之前单独进行深度钻孔控制或在板材上进行预钻孔。建议在PCB项目的初始阶段借助PCB钻孔专家,同时决定PCB制造中的PCB布局和生产技术。如何精确钻孔有助于降低成本?    钻孔作业阶段以最佳速度进行钻孔时的成本会降低。在钻孔电路板上的孔时,每个操作都应该齐头并进。通过更快地钻孔,还应控制速度以确保刀具破损问题不成问题。这可以控制钻头尺寸与板厚比。有了这个,通过控制pcb布局所消耗的时间,成本可以自动控制。因此,选用我司BINDE宾德钻孔动力头,具备有极高的旋转精度,极小的经向跳动,保证毛细孔的钻孔作业同时,极大保证PCB板孔的质量,提高产品加工成品率!
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The development trend of electric spindle technology is mainly reflected in the following aspects:One. High speed, high stiffnessDue to the needs of high-speed cutting and practical applications, with the development of spindle bearings and their lubrication technology, precision machining technology, precision dynamic balancing technology, high-speed tools and their interface technology, the high-speed CNC spindles have become the current development. The general trend, such as electric spindle for drilling and milling, the speed of HF42 of Swiss IBAG reaches 140,000r/min, the D1733 of the PCB drilling electromechanical spindle of WestWind in the United Kingdom has reached 250,000r/min; the electric spindle of machining center, the highest of FISCHER in Switzerland The speed reached 42000r/min and the Italian CAMFIOR reached 75000r/min. In terms of the system stiffness of the electric spindle, due to the development of bearings and their lubrication technology, the system stiffness of the electric spindle is getting larger and larger, which meets the needs of high-speed, high-efficiency and precision machining development of CNC machine tools.Second, high speed and high power. Low speed and high torqueAccording to the needs of actual use, most CNC machine tools need to meet the requirements of heavy cutting and high-speed cutting during low-speed roughing. Therefore, the machine tool spindle should have low-speed, high-torque, high-speed and high-power performance. For example, the electric spindles of machining centers produced by manufacturers such as CAMFIOR of Italy, Step-Tec of Switzerland, and GMN of Germany, it is not difficult to output torque to 200Nm in low speed section. The maximum torque of CNC milling machine and lathe electric spindle of CYTEC in Germany is Up to 630 N·m; in the high-speed section, the power is generally 10 to 50 kW; the maximum output power of the CYTEC electric spindle is 50 kW; the maximum power of the Swiss Step-Tec electric spindle is 65 kW (S1) for aircraft manufacturing. And mold processing; more reports that the electric spindle power reaches 80kW.Third, further development towards high precision, high reliability and extended working lifeThe user puts higher and higher requirements on the precision and reliability of the CNC machine tool. As one of the core functional components of the CNC machine tool, the electric spindle requires higher precision and reliability. For example, the radial runout of the main shaft is within 0.001mm, and the axial positioning accuracy is less than or equal to 0.0005mm. At the same time, due to the use of special precision spindle bearings, advanced lubrication methods and special preload application methods, the life of the electric spindle has been extended accordingly, and its reliability is getting higher and higher. Step-Tec's electric spindle is also equipped with an acceleration sensor to reduce the vibration acceleration level of the bearing. In order to monitor and limit the vibration on the bearing, a vibration monitoring module is installed to extend the working life of the electric spindle.Fourth, the electric spindle has built-in motor performance and form diversificationIn order to meet the needs of practical applications, the performance of the electric spindle motor has been improved. For example, the ratio of constant torque high speed to constant power high speed (ie constant power speed regulation range) of the Swiss FISCHER spindle motor output has reached 1:14. In addition, the permanent magnet synchronous motor electric spindle has appeared. Compared with the asynchronous motor electric spindle of the same power, the outer diameter of the synchronous motor electric spindle is small, which is beneficial to increase the power density and realize small size and high power.FIVE. Development towards rapid start and stopIn order to shorten the auxiliary time and improve the efficiency, it is required that the start and stop times of the CNC machine tool spindle are as short as possible, so a high start and stop plus (minus) speed is required. At present, the acceleration and start-up acceleration of the foreign machine tool electric spindle can reach more than lg, and the full-speed start and stop time is within ls.SIX. Bearings and their preload application methods and diversification of lubrication methodsIn addition to conventional steel rolling bearings, ceramic ball hybrid bearings have been widely used in recent years. Lubrication methods include grease, oil mist, oil and gas, etc., especially oil and gas lubrication methods (also known as Oil-air). The characteristics of environmental protection and energy conservation have been widely promoted and applied. The preload application method of rolling bearings is developed in addition to rigid preload (also known as positioning preload) and elastic preload (also known as constant pressure preload). An intelligent preloading method is to apply a preload to the bearing by using a hydraulic cylinder, and the preload can be controlled according to the specific working conditions of the spindle speed and load, so that the bearing performance of the bearing is more excellent. In the non-contact type bearing-supported electric spindle, such as magnetic bearing, air bearing electric spindle (Swiss IBAG, etc.), liquid floating bearing electric spindle (Ingersoll, etc.), etc., there are already a series of commodity supply markets.Seven, the tool interface gradually tends to HSK, Capto tool holder technologyAfter the machine tool spindle is speeded up, due to the centrifugal force, the traditional CAT (7:24) shank structure can no longer meet the requirements of use, and it is necessary to adopt HSK (1:10) and other shank interface forms that meet the high speed requirements. HSK shanks feature outstanding static and dynamic coupling stiffness, high torque transfer capability, high tool repeatability and coupling reliability, making them ideal for high speed, high precision applications. Therefore, the HSK toolholder interface has been widely adopted for high-speed electric spindles (such as IBAG in Switzerland, CYTEC in Germany, CAMFIOR in Italy, etc.). In recent years, the Capto tool interface proposed by SANDVIK has also been applied in the machine tool industry. The basic principle is similar to the HSK interface, but the ability to transmit torque is slightly larger. The disadvantage is that the inner hole of the spindle shaft is difficult to process and the process is complicated. .Eight, multi-functional, intelligentIn terms of multi-function, there are angular stop precise positioning (quasi-stop), C-axis drive, tool-opening air blowing, hollow-pass coolant, shaft end gas seal, low-speed torque amplification, axial positioning precision compensation, tool change automatic Dynamic balance technology, etc. In terms of intelligence, it is mainly manifested in various safety protection and fault monitoring and diagnosis measures, such as tool change interlock protection, bearing temperature monitoring, motor overload and overheat protection, bearing unloading protection when loosening the knife, spindle vibration signal monitoring and fault abnormality. Diagnostics, automatic compensation of axial position change, signal monitoring and automatic control of grinding wheel dressing process, tool wear and damage signal monitoring, etc. For example, the Step-Tec electric spindle is equipped with a diagnostic module, and the maintenance personnel can read the data through the infrared interface to identify the overload. Calculate the working life of the electric spindle.
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2008、2009年国际金融风暴开始席卷全球,世界工业领域大幅减产,实体经济陷入严重衰退,世界精密加工行业也将随之衰退。2010、2011年属于出口恢复性增长。2012年受欧洲债务危机影响,新一轮世界经济衰退期开始显现,我国电动机出口企业应在2015年后抓住机遇,摆脱低价恶性竞争,不断提高动力头产品质量,开拓国际新兴市场。  钻孔攻牙动力头行业要推进产能合作,避免低端恶性竞争。攻牙动力头行业在实施“走出去”战略、推进国际产能合作方面已经有发电、输变电龙头企业率先垂范,并取得了一定的成绩。因此,行业内凡具备一定条件的优势企业,都应当积极拓宽国际合作领域、扩大市场空间,提高国际化水平。  摆脱国内动力头无序竞争的根本在于避开市场的恶性低价竞争,走高端产品、特色产品之路。国内钻孔攻牙动力头行业应从根本上改变品种单调、精度较低局面,瞄准高端市场,重新定位,提高产品使用精度,使用寿命。在国外,欧盟国家电机制造业总体上以中小企业为主,其高技术含量电机的市场定位比较稳固,一方面他们积极生产高品质攻牙产品,;另一方面,他们再对同样的产品进行巧妙设计,使电气性能比我国同等功率的动力头产品要好很多,使用便捷性优势明显,西德克攻牙动力头产品逐步形成自己的特色,参与全球的市场中去。  钻孔攻牙动力头行业要加快在重点行业全面推进“智能制造”,专注细分的细牙攻牙,细孔钻攻领域,提升自身定位优势。面对产品价格持续走低、人工成本不断上升、利润降低、企业生存压力加大的情况,加之下游行业对于动力头技术性能和质量要求不断提高,  BINDE宾德精密钻孔攻牙动力头行业要智能驱动,借力“一带一路”。为进一步拓展国内精密钻孔攻牙动力头产品在国内的市场,已优质的产品特性,过硬的产品品质赢得客户信任,扎根细分高精密加工领域,踏实推进增加市场份额,逐步形成国产产品逐步替换进口方技动力头、速技能动力头,翰坤动力头等品牌。逐步改变钻孔攻牙动力头的市场国产占有率。
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