外文翻譯---后處理構(gòu)造器說明書

1、<p><b>　　外文翻譯</b></p><p>　　Post Builder Help</p><p>　　Getting Started</p><p>　　Post Builder creates and edits postprocessors. These postprocessors have three e

2、lements, each identified by the base name and one of three extensions.  Assuming your postprocessor name is my_machine_tool, these files would be the following: </p><p>　　By default, Post Builder create

3、s your postprocessor in the directory where you started Post Builder.  Use the Save As option in the file dialog to save your postprocessor in the directory of your choice.  In order to use your postprocessor i

4、n NX you must add an entry to your template_post.dat file in your current postprocessor directory. </p><p>　　Procedures in the Base File</p><p>　　NX Post depends heavily on procedures in the ugp

5、ost_base.tcl file. This file is located in the mach/postprocessor directory. The system uses it to support the file I/O and other basic functions. This is updated with each NX release, and should not be modified. It is p

6、ossible to overwrite procedures in this file through tcl programming, but this is not recommended. You can overwrite these procedures with a user created tcl file or by using the uplevel feature of tcl. When any of the p

7、rocedures in</p><p>　　Creating a New Post </p><p>　　To create a post follow the steps below:</p><p>　　Select the New File icon or select New in the file drop down menu. </p>

8、<p>　　You have the following choices from the Create New Postprocessor dialog:</p><p>　　You can select the name of your postprocessor or use the default name. You can change this name when saving.</p

9、><p>　　You can enter a text description of your postprocessor. </p><p>　　Specify whether the system outputs in inch or metric. If you select inch, all coordinate output and formats are in inches. I

10、f you specify metric, all coordinate output is in millimeters. All of the default parameters such as tolerances, minimums and maximums are based upon the output units. See the section on Changing Postprocessor Kinematics

11、 for how to change from inch to metric or metric to inch after you have created the post. </p><p>　　Select a basic machine type. Once you have selected the machine type you can not change it again for this p

12、ostprocessor. Your choices are explained in the following sections: Mill, Lathe, Wire EDM. </p><p><b>　　Mill</b></p><p>　　Selecting this option defines your machine as a mill type. T

13、he following mill types are available:</p><p><b>　　Lathe</b></p><p>　　Selecting this option defines your machine as a lathe type. Typically lathes have two linear axes (Cartesian X a

14、nd Z). The chuck rotates and the tool remains in a turret that moves in the X and Z-axis. In the machine section you can also specify your post as a four axis lathe with a fixed distance between the turrets. </p>

15、<p><b>　　Wire EDM</b></p><p>　　Select this option to create or edit a Wire EDM postprocessor. The system provides posts for three common wire EDM machine tools: Agie, Mitsubishi, and Charmil

16、les. They contain all the G and M codes used to control standard Wire EDM functions. They also contain the basic two and four axis motion. </p><p>　　Controller</p><p>　　You must now select a bas

17、ic controller type. You can choose a generic controller, a specific controller from the controller library, or a post you have previously created. The specific controllers have nurbs output for the Fanuc, Siemens and Hei

18、denhain mill controls. The choice of controllers is difficult for mill, lathe, or wire edm machine tools. </p><p>　　After making all your selections the system uses all the information you have selected to c

19、reate your post. </p><p>　　Changing Postprocessor Kinematics</p><p>　　You can start with any existing postprocessor created with Post Builder and change the kinematics or the inch/metric setting

20、 through the following process: </p><p>　　Make a new post.</p><p>　　Select the new inch or metric setting.</p><p>　　Select the new kinematics setting.</p><p>　　Select t

21、he user option on the controller to browse for the post you want to change.</p><p>　　Create the post.</p><p>　　Your new post now has all of the custom commands and edits from your original post,

22、 but with new kinematics and/or inch/metric settings. </p><p>　　You may need to add rotary words to the motion blocks when making a four or five axis post from a three axis post. To do this follow the steps

23、below: </p><p>　　Go to Program & Tool Path→Program→Motion. In this dialog you may need to change the Linear Move and Rapid Move blocks. To do this, follow the steps below: </p><p>　　Click on

24、 the Linear Move, or Rapid Move blue event marker.</p><p>　　In the dialog that displays, select the down arrow next to the drop down menu.</p><p>　　From the drop down menu select fourth_axis.<

25、;/p><p>　　Click and hold the Add Word button until a block displays.</p><p>　　Drag the block over the block until a white outline appears, than release the mouse.</p><p>　　If you have

26、a four axis post you may only need to add the fourth_axis word. If you have a five axis post you may need to add both the fourth_axis and fifth_axis. </p><p>　　Go to Program & Tool Path→Program→Canned Cy

27、cles and select the Common Parameters event marker. Add the fourth_axis word in the same manner as the Linear and Rapid Move event markers. </p><p><b>　　Options</b></p><p>　　Validate

28、 Custom Commands</p><p>　　You can turn on or turn off error checking while importing or creating custom commands:</p><p>　　This is a very useful feature that prevents many run-time errors that a

29、re much more difficult to debug in a run-time situation. If you select the dotted line you can create a detached dialog. </p><p>　　Back Up Post</p><p>　　This preference allows you to define how

30、the system creates backup versions of Post Builder files.  You have the following choices: </p><p>　　Help Functions</p><p>　　Balloon Help</p><p>　　Select this option to activat

31、e Balloon Help. When you place the cursor over many of the objects in the Post Builder dialogs, an icon appears and gives you more detail on the exact functionality of the object. You can turn on Balloon Help during

32、 postprocessor creation mode. </p><p>　　This example shows the name of the block the system outputs as well as the format of the output code.</p><p>　　Context Sensitive Help</p><p>

33、　　Select this option to activate Context Sensitive Help mode. When you activate this mode and select an item in Post Builder, the system displays a description of that item.  For example, when you activate Cont

34、ext Sensitive Help mode and you select Program Start Sequence, the system displays the following description. </p><p>　　This feature is not implemented for all dialogs and objects. When you activate thi

35、s feature, the dialogs do not behave as they did in postprocessor create mode and the cursor turns into a question mark during Context Sensitive Help. You must turn off Context Sensitive Help in order to return to postpr

36、ocessor create mode.  </p><p>　　Browse User Documentation</p><p>　　This option calls up the Post Builder online help documentation. The system displays this documentation and allows you to

37、browse through it at your leisure. </p><p>　　Machine Tool</p><p>　　This section allows you to configure the kinematics of your machine tool. You can define the limits and axis orientation of eac

38、h of the tools. The Machine Tool dialog is divided into three sections: General Parameters, Fourth Axis, and Fifth Axis. The general parameters section is available for all machine tool types. The dialogs for the fourth

39、and fifth axes are available only for four and five axis machine tools. </p><p>　　General Parameters</p><p>　　Display Machine Tool </p><p>　　Display Machine Tool button is located i

40、n the top left portion of your window. This option gives you an up to date picture of your machine tool. With this you can visualize the axis orientations. For a four and five axis milling machine the system also display

41、s the address leader designation (A, B or C) and limits for each rotary axis. This option is not available for mill/turn and wire edm. </p><p>　　Output Circular Record </p><p>　　You can set this

42、 option to Yes or No. If set to Yes, the system outputs all circles based on the circle motion parameters. If set to No the system does not output circle blocks (G2 or G3). </p><p>　　Linear Axis Travel Limit

43、</p><p>　　This option allows you to check travel limits when you import the custom command pb_cmd_check_travel_limits.tcl. </p><p>　　Home Position</p><p>　　This defines the default

44、FROM position if you have not specified a FROM position. </p><p>　　Linear Motion Resolution</p><p>　　This defines the minimum value to which the system rounds all coordinates. This does not nece

45、ssarily control the format of the coordinate data. To control the format of the coordinate data you must change the number of decimal digits output. </p><p>　　Traversal Feed Rate</p><p>　　This d

46、efines the feed rate that the system uses to calculate machine time for rapid motion. The system also uses this value to determine if a linear feed rate move is actually performed at rapid. </p><p><b>

47、　　Mill</b></p><p>　　Fourth Axis Parameters</p><p>　　The fourth axis parameters, unless specifically stated, also applies to the fifth axis. The default settings work for most machines.

48、60;The following options are available on the Fourth Axis dialog: </p><p>　　Rotary Axis Configuration</p><p>　　This dialog allows you to define the Plane of Rotation and Address Leader for both

49、the fourth and the fifth axis. You can access this dialog from either the fourth or the fifth axis configuration dialogs. Note that you must make sure you change the Address Leader when you change the rotary axis plane.

50、Note also that the plane of the fourth axis must be different than the plane of the fifth axis. This dialog is only available for specifying the parameters of a five-axis machine tool. It is not av</p><p>　　

51、In order to get the correct output for a dual head rotary five axis machine tool with a B axis (in the ZX plane) attached to a C axis (in the XY plane), you must define the fourth axis as B (ZX plane) and the fifth axis

52、as C (XY plane). The machine tool display function will not work correctly for this configuration. However, the output will be correct. </p><p>　　This follows a general restriction where the C axis (XY plane

53、) cannot be the fourth axis of a five axis machine tool.</p><p>　　Machine Zero to Rotary Axis Center</p><p>　　This option allows you to define where the center of the fourth axis is in relation

54、to your machine zero. The default value for this distance is (0,0,0). This value must be specified for the post processor to map correctly between the MCS programmed in NX and the Machine Tool Coordinate System</p>

55、<p>　　Rotary Motion Resolution</p><p>　　This option allows you to control the number of digits to which the system rounds the rotary angle. This is typically .001 degrees for most contouring axes. <

56、;/p><p><b>　　后處理構(gòu)造器說明書</b></p><p><b>　　入門</b></p><p>　　Post Builder創(chuàng)建和編輯后處理器。后處理器有三個組成部分，由基本名稱和三個擴(kuò)展名確定。假設(shè)你的后處理器名字是my_machine_tool，這些文件將是如下：</p><p>

57、　　一般情況下，由Post生成器創(chuàng)建的后處理在默認(rèn)的目錄中。使用另存為對話框保存后處理文件在您選擇的目錄下。為了使用NX中的后處理，你必須添加一個template_post.dat后處理文件在當(dāng)前目錄中。</p><p><b>　　基本文件的程序</b></p><p>　　NX后處理器在很大程度上取決于在ugpost_base.tcl文件的程序。此文件位于mach

58、/postprocessor目錄。該系統(tǒng)使用它來支持文件I / O和其他基本功能。這是每個NX的更新版本，不能被修改。它可以通過TCL編程文件覆蓋在此項目的程序，但不建議這樣做。您可以覆蓋用戶創(chuàng)建的這些程序文件或通過TCL語言高配置的功能。當(dāng)任何后處理的程序覆蓋ugpost_base.tcl后，我們不再保證Post程序?qū)⒗^續(xù)能從一個版本到下一個版的正確性。對一些重要文件修改時，可能導(dǎo)致以下出現(xiàn)問題：</p><p&g

59、t;<b>　　創(chuàng)建一個新的后處理</b></p><p>　　創(chuàng)建一個后處理器，請按照下列步驟</p><p>　　1．選擇新建的文件圖標(biāo)或選擇下拉菜單新建文件。你可以從新建后處理器對話框中進(jìn)行下面的選擇：</p><p>　　2 .您可以選擇您的后處理程序的名稱或使用默認(rèn)名稱。您也可以在保存時，更改此名稱。</p><p

60、>　　3 .您可以輸入您的后處理器的文字描述。</p><p>　　4. 指定是英寸或是公制輸出。如果您選擇英寸，所有的坐標(biāo)輸出和格式都是英寸。如果您指定公制，所有的坐標(biāo)輸出都以毫米為單位。默認(rèn)的參數(shù)如公差，最小值和最大值都由輸出單位決定。對于當(dāng)創(chuàng)建一個后處理后如何從英制改為公制或公制改為英制請參照后處理運動學(xué)部分。</p><p>　　5．選擇一個基本的機床類型。一旦你選擇了機類型

61、你不能改變這種后處理類型。您可以從以下幾個部分中進(jìn)行選擇：銑床，車床，線切割。</p><p><b>　　銑床</b></p><p>　　選擇此選項定義您的機床類型為銑床。以下的銑床種類可供你選擇：</p><p><b>　　車床</b></p><p>　　選擇此選項定義您的機床類型為車床。

62、通常車床有兩個線性軸（笛卡兒X和Z）。夾頭旋轉(zhuǎn)和刀具固定的溜板箱，在X和Z移動軸。在機床部分，您也可以指定你的處理器的第4軸與溜板箱之間的車床固定距離</p><p><b>　　線切割</b></p><p>　　選擇此選項創(chuàng)建或編輯線切割后處理器。該系統(tǒng)提供了三種常見的線切割加工機床：阿奇，三菱，夏米爾。它們包含所有G代碼和用于控制標(biāo)準(zhǔn)線切割功能M代碼。它們也包含

63、了基本的兩軸和四軸運動。</p><p><b>　　控制器</b></p><p>　　您現(xiàn)在必須選擇一個基本的控制器的類型。您可以選擇一個通用控制器，或從控制器庫創(chuàng)建一個特定的控制器。具體控制器有法納克，西門子和海德漢軋機控制器。、對于銑床、車床，電火花加工來說，控制器的選擇是比較困難的。</p><p>　　在完成你的所有機床信息選擇后，

64、你可以選擇創(chuàng)建一個后處理器。</p><p><b>　　更改動態(tài)的后處理器</b></p><p>　　您可以從任何現(xiàn)有處理程序開始創(chuàng)建一個后處理構(gòu)造器，并通過以下步驟來更改機床運動或英寸/公制參數(shù)設(shè)置。</p><p><b>　　新建一個后處理器</b></p><p>　　選擇新英寸或公制設(shè)

65、置。</p><p>　　選擇新的機床運動學(xué)設(shè)置。</p><p>　　選擇控制器上的用戶選項去更改你選擇的控制器。</p><p><b>　　創(chuàng)建后處理器</b></p><p>　　現(xiàn)在您的新后處理器已經(jīng)從原來的處理器得到了所有命令和編輯，但沒有新的運動學(xué)和/或英寸/公制設(shè)置。</p><p&g

66、t;　　您可能需要添加旋轉(zhuǎn)字符到運動塊上，已定義除了三軸外的第四軸或第五軸。為此請按照下列步驟：</p><p>　　訪問程序 刀具路徑→程序→運動。在這個對話框中你可能需要更改線性移動和快速移動塊。為此，請按照下列步驟：</p><p>　　單擊關(guān)于線性移動，或快速移動的藍(lán)色標(biāo)志事件。</p><p>　　在顯示的對話框中，選中下拉菜單旁邊的向下箭頭。</p

67、><p>　　從下拉菜單中選擇四軸</p><p>　　單擊并按住字按鈕添加一個新塊。</p><p>　　拖動塊，直到白色的輪廓出現(xiàn)，釋放鼠標(biāo)。</p><p>　　如果你有一個4軸后處理，您可能只需要添加fourth_axis。如果你有一個5軸后處理您可能需要添加fourth_axis和fifth_axis。</p><p

68、>　　訪問程序 刀具路徑→程序→循環(huán)周期，選擇標(biāo)記的普通參數(shù)。以相同的方式添加fourth_axis作為線性和快速移動事件的標(biāo)記。</p><p><b>　　選項</b></p><p><b>　　驗證自定義命令</b></p><p>　　當(dāng)你輸入或創(chuàng)建自定義命令時，您可以打開或關(guān)閉錯誤檢查。</p>

69、;<p>　　這是一個非常有用的功能，在運行時的情況進(jìn)行調(diào)試，可以防止許多運行時很難發(fā)現(xiàn)的錯誤。如果您選擇點線，您可以創(chuàng)建一個獨立的對話框。</p><p><b>　　備份后處理</b></p><p>　　這個首選項允許您定義如何備份您的后處理構(gòu)造器文件。您有以下選擇：</p><p><b>　　幫助功能</

70、b></p><p><b>　　幫助顯示框</b></p><p>　　選擇此選項激活氣球幫助。當(dāng)您放置您的光標(biāo)在后處理構(gòu)造器對話框?qū)ο笊蠒r，一個提示框會出現(xiàn)并且給你該對象的許多詳細(xì)信息和準(zhǔn)確功能。您可以在后處理創(chuàng)建模式中打開氣球幫助，這個例子說明了該塊的名稱和輸出代碼格式的名稱。</p><p><b>　　上下文相關(guān)的幫

71、助</b></p><p>　　選擇此選項激活上下文相關(guān)的幫助方式。當(dāng)您激活此模式并選擇生成項目后，系統(tǒng)會顯示該項目的描述。例如，當(dāng)您激活上下文相關(guān)的幫助模式和程序啟動序列，系統(tǒng)會顯示下面的說明。</p><p>　　此功能并不適用于所有的對話和對象。當(dāng)您啟用此功能時，對話框并不代表后處理模式，生成的光標(biāo)會變成一個問號在上下文相關(guān)幫助上。您必須關(guān)閉上下文相關(guān)的幫助，以便返回后處

72、理器創(chuàng)建模式。</p><p><b>　　瀏覽用戶文檔</b></p><p>　　這個選項要求后處理構(gòu)造器生成聯(lián)機幫助文檔。該系統(tǒng)顯示幫助文件，并允許您通過它瀏覽其他空閑的計算機。</p><p><b>　　機床</b></p><p>　　本部分允許您設(shè)置您的機床運動。您可以定義每個機床限制

73、軸和方向。該機床對話框分為三個部分：一般參數(shù)，第四軸和第五軸。一般參數(shù)部分可用于所有的機床類型。第四和第五軸的對話框僅適用于4到5軸機床。</p><p><b>　　一般參數(shù)</b></p><p><b>　　顯示機床</b></p><p>　　示機床按鈕位于你窗的左上半部分。此選項為您提供了最新的機床的圖片。有了這

74、個，您可以直觀地看到軸的方向。對于一個四，五軸銑床系統(tǒng)還顯示地址設(shè)計（A，B或C）和每一個旋轉(zhuǎn)軸限制。此選項不能用于磨床，線切割。</p><p><b>　　輸出循環(huán)記錄</b></p><p>　　您可以將此選項設(shè)置為Yes或No，如果設(shè)置為Yes，系統(tǒng)輸出基于整圓的圓圈運動參數(shù)。如果設(shè)置為NO，系統(tǒng)不輸出圓塊（G2和G3）。</p><p&g

75、t;<b>　　線性軸的行程限制</b></p><p>　　當(dāng)您導(dǎo)入自定義命令pb_cmd_check_travel_limits.tcl，這個選項允許你檢查行程限制。</p><p><b>　　開始位置</b></p><p>　　定義默認(rèn)開始位置，如果你還沒有指定從一個位置開始。</p><p&

76、gt;<b>　　直線運動的定義</b></p><p>　　這定義了系統(tǒng)所有坐標(biāo)的最小值。</p><p><b>　　橫向進(jìn)給速度</b></p><p>　　這個命令定義了進(jìn)給速度，該系統(tǒng)用來計算機床快速運動的時間。該系統(tǒng)還使用這個值來確定在快速進(jìn)行時是否輸出線性進(jìn)給速度。</p><p>&

77、lt;b>　　銑床</b></p><p><b>　　第四軸參數(shù)</b></p><p>　　第四軸參數(shù)，除非特別聲明，也適用于第五軸。默認(rèn)設(shè)置大多數(shù)機器。下面的選項適用于第四軸對話框：</p><p><b>　　旋轉(zhuǎn)軸配置</b></p><p>　　此對話框允許您定義的旋轉(zhuǎn)

78、平面和地址為第四和第五軸。請注意，當(dāng)您修改旋轉(zhuǎn)軸時,您必須確保您更改地址字的正確。還注意到，第四軸平面必須不同于第五軸平面。此對話框只提供給指定的5軸機床的參數(shù)。它不適用于4軸機床。</p><p>　　為了獲得了一個正確的雙頭旋轉(zhuǎn)帶B軸( 在ZX平面) 與C軸(在XY平面)的機床, 你必須定義B為第四軸（在ZX平面），而C為（XY平面）第五軸。機床顯示功能將不能正常使用此配置。然而，輸出將是正確的。</p

79、><p>　　在此之前，一般限制在C軸（XY平面）,不能以5軸機床作為第四軸。</p><p><b>　　機械零到旋轉(zhuǎn)軸中心</b></p><p>　　這個選項允許你定義在第四軸中心與你的機器零點位置。對于這個距離默認(rèn)值為（0,0,0）。此值必須指定為后處理器和NX機床坐標(biāo)系之間正確映射。</p><p><b&g