由于鋁板加工中心設(shè)備遠(yuǎn)比普通機(jī)床昂貴，所以受到的制約因素更多，機(jī)床選擇合理與否就更顯重要。正確選型是用好加工中心、使加工中心設(shè)備發(fā)揮效益的關(guān)鍵。在購買鋁板加工中心設(shè)備時，認(rèn)真考察這五大要點(diǎn)尤為重要：
Because the equipment of aluminum plate machining center is much more expensive than ordinary machine tools, so it is more important to choose reasonable machine tools. Correct selection is the key to make good use of machining center and make the equipment of machining center play an important role. When purchasing aluminum plate processing center equipment, it is particularly important to carefully investigate these five key points:
1、加工設(shè)備的剛度 鋁板生產(chǎn)廠家
1. Rigidity of processing equipment
由于加工中心設(shè)備的剛度直接影響機(jī)床的生產(chǎn)效率和加工精度，所以加工中心的加工速度遠(yuǎn)高于普通機(jī)床，電機(jī)的功率也高于普通機(jī)床同一規(guī)格的普通機(jī)床，其結(jié)構(gòu)設(shè)計的剛度遠(yuǎn)高于普通機(jī)床。訂貨時，可根據(jù)制造廠提供的數(shù)值，校核工藝要求、允許扭矩、功率、軸向力和進(jìn)給力的大值。為了獲得機(jī)床的高剛度，往往不局限于零件尺寸，而是選擇相對零件尺寸大于1～2規(guī)格的機(jī)床。
Because the rigidity of the machining center equipment directly affects the production efficiency and machining accuracy of the machine tool, the processing speed of the machining center is much higher than that of the ordinary machine tool, the power of the motor is also higher than that of the ordinary machine tool of the same specification, and the rigidity of the structure design is far higher than that of the ordinary machine tool. When ordering, the maximum value of process requirements, awesome torque, power, axial force and feed force can be checked according to the value supplied by the manufacturer. In order to obtain the high stiffness of machine tools, it is often not limited to the size of parts, but to choose the machine tool whose relative part size is larger than 1 ~ 2 specifications.
2、加工設(shè)備的加工精度
2. Machining accuracy of processing equipment
加工精度直接影響到產(chǎn)品的質(zhì)量。當(dāng)很多人否認(rèn)你的機(jī)床精度不好時，會直接影響買家的決定。需要注意的是，加工精度和機(jī)床精度的概念是不同的。把制造廠樣品或產(chǎn)品合格證的位置精度作為機(jī)床加工精度是錯誤的。樣品或證書上標(biāo)明的位置精度是機(jī)床本身的精度，而加工精度是整個工藝系統(tǒng)各種因素產(chǎn)生的誤差之和，包括機(jī)床本身的允許誤差。在選擇類型時，可以參考過程能力kp的評價方法作為選擇精度類型的依據(jù)。一般來說，計算結(jié)果應(yīng)大于1.33。
Machining accuracy directly affects the quality of products. When many people deny that your machine tool accuracy is not good, it will directly affect the buyer's decision. It should be noted that the concepts of machining accuracy and machine tool accuracy are different. It is wrong to regard the position accuracy of sample or product certificate of manufacturer as machining accuracy of machine tool. The position accuracy indicated on the sample or certificate is the accuracy of the machine itself, while the machining accuracy is the sum of the errors caused by various factors in the whole process system, including the allowable error of the machine tool itself. When selecting the type, the evaluation method of process capability KP can be used as the basis for selecting precision type. Generally speaking, the calculation result should be greater than 1.33.

3、 加工設(shè)備數(shù)控系統(tǒng)的選擇
3. Selection of CNC system for machining equipment
數(shù)控系統(tǒng)是加工中心運(yùn)行的核心大腦。數(shù)控功能分為基本功能和選擇功能。基本功能是不可避免的，只有當(dāng)用戶選擇這些功能時，選擇功能才會由制造商提供。數(shù)控系統(tǒng)的功能必須根據(jù)機(jī)床的性能要求來選擇。在訂貨時，不應(yīng)遺漏所需的全部功能，也應(yīng)避免因利用率低而造成的浪費(fèi)。我們還應(yīng)該注意這些功能之間的相互關(guān)系。在可選的數(shù)控系統(tǒng)中，性能差別很大。應(yīng)根據(jù)需要選擇，不能片面追求高目標(biāo)，以免造成浪費(fèi)。選擇多臺機(jī)床時，應(yīng)盡量選用同一廠家的數(shù)控系統(tǒng)，使操作、編程和維護(hù)更加方便。
CNC system is the core brain of machining center. CNC function is divided into basic function and selection function. Basic functions are inevitable, and only when the user selects these functions, the selection functions will be provided by the manufacturer. The function of the CNC system must be selected according to the performance requirements of the machine tool. When ordering, all the required functions should not be omitted, and waste caused by low utilization rate should also be avoided. We should also pay attention to the interrelationship between these functions. In the optional CNC system, the performance varies greatly. We should choose according to the needs and not pursue high goals unilaterally, so as to avoid waste. When selecting more than one machine tool, the same manufacturer's numerical control system should be selected as far as possible to make the operation, programming and maintenance more convenient.
4、坐標(biāo)軸和聯(lián)動軸的數(shù)量
4. Number of axes and linkage axes
坐標(biāo)軸數(shù)和聯(lián)動軸數(shù)應(yīng)滿足鋁板加工的要求。坐標(biāo)軸的數(shù)量也是機(jī)床等級的標(biāo)志。一般來說，同一廠家、同一規(guī)格、同一精度的機(jī)床，加一個標(biāo)準(zhǔn)坐標(biāo)軸，成本增加35%左右。雖然增加軸數(shù)可以增強(qiáng)機(jī)床的功能，但后還是要注意工藝要求和資金平衡。
The number of coordinate axes and linkage axes should meet the requirements of aluminum plate processing. The number of axes is also a sign of the machine level. Generally speaking, the cost of a machine tool with the same manufacturer, specification and precision will increase by about 35% if a standard coordinate axis is added. Although increasing the number of shafts can enhance the function of the machine tool, it is still necessary to pay attention to the process requirements and capital balance.
5、自動換刀器和刀具儲存容量
5. Automatic tool changer and tool storage capacity
動態(tài)換刀裝置的選擇主要考慮換刀的時間和可靠性。換刀時間短可以提高生產(chǎn)率，但換刀時間短。換刀裝置結(jié)構(gòu)復(fù)雜，故障率高，成本高。過分強(qiáng)調(diào)換刀時間會大大增加成本，提高故障率。據(jù)統(tǒng)計，加工中心約50%的故障與自動換刀裝置有關(guān)。因此，在滿足使用要求的前提下，應(yīng)盡量選用可靠性高的自動換刀裝置，以降低整機(jī)的故障率和成本。
The selection of dynamic tool change device mainly considers the time and reliability of tool change. Short tool change time can improve productivity, but tool change time is short. The tool changing device has complex structure, high failure rate and high cost. Overemphasizing the tool changing time will greatly increase the cost and increase the failure rate. According to statistics, about 50% of the failures in machining centers are related to the automatic tool changer. Therefore, in order to reduce the failure rate and cost of the whole machine, automatic tool changer with high reliability should be selected as far as possible under the premise of meeting the requirements of use.
自動換刀的質(zhì)量和刀具庫的容量將直接影響加工中心的性能和質(zhì)量。刀具庫容量的原則是滿足復(fù)雜加工零件對刀具的需求。
The quality of automatic tool change and the capacity of tool library will directly affect the performance and quality of machining center. The principle of tool library capacity is to meet the needs of complex machining parts for cutting tools.