1、后处理构造器说明书 外文翻译 外文翻译Post Builder HelpGetting StartedPost Builder creates and edits postprocessors.These postprocessors have three elements, 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: my_machine
2、_tool.puiOnly Post Builder uses this file.This file contains static information on how to write out the .tcl file.Although Post does not need this file, it must be present in the same directory as the .tcl and .def files in order to edit your postprocessor. my_machine_tool.tclThis file determines th
3、e blocks that need to be output from events that are generating by Post. This file uses the TCL language. Post Builder completely creates this file every time you save your postprocessor. Post also uses this file at run time to generate NC code. my_machine_tool.defThis file defines all the static in
4、formation for the postprocessor.This includes formats, address and NC blocks.The format of this file is a special syntax created by NX.This file is used by Post to postprocess the tool path and generate NC code. By default, Post Builder creates your postprocessor in the directory where you started P
5、ost 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 in NX you must add an entry to your template_post.dat file in your current postprocessor directory. Post Builder supports English dialogs only.Procedu
6、res in the Base FileNX Post depends heavily on procedures in the ugpost_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 possible to o
7、verwrite 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 procedures in ugpost_base.tcl are overwritten by the procedures in the postprocessor we no lo
8、nger guarantee that the post will continue to work correctly from one release to the next. Some of the critical files that may cause problems when modified are: Creating a New Post To create a post follow the steps below:1.Select the New File icon or select New in the file drop down menu. You have t
9、he following choices from the Create New Postprocessor dialog:2.You can select the name of your postprocessor or use the default name. You can change this name when saving.3.You can enter a text description of your postprocessor. 4.Specify whether the system outputs in inch or metric. If you select
10、inch, all coordinate output and formats are in inches. If 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 for how to change from
11、inch to metric or metric to inch after you have created the post. 5.Select a basic machine type. Once you have selected the machine type you can not change it again for this postprocessor. Your choices are explained in the following sections: Mill, Lathe, Wire EDM. MillSelecting this option defines
12、your machine as a mill type. The following mill types are available:3-Axis Your post has three linear axes ( X, Y and Z).3-Axis Mill Turn (XZC)Your post is the mill portion of a mill/turn. You can output standard Cartesian XYZ or output polar coordinates X (radius), Z and C(angle). See the Mill Turn
13、 section for more details. 4-Axis with Rotary TableYour post has three linear axes (X, Y and Z) and rotary indexing or contouring table (A, B or C).4-Axis with Rotary Head Your post has three linear axes (X, Y and Z) and rotary indexing or contouring head (A, B or C)5-Axis with Dual Rotary Heads You
14、r post has three linear axes (X, Y and Z) and two rotary indexing or contouring heads (A, B or C).5-axis with Dual Rotary Table Your post has three linear axes (X, Y and Z) and two rotary indexing or contouring tables (A, B or C).5-axis with Rotary Head and TableYour post has three linear axes (X, Y
15、 and Z), a rotary indexing, or contouring fourth axis head and a rotary indexing or contouring fifth axis table (A, B or C). LatheSelecting this option defines your machine as a lathe type. Typically lathes have two linear axes (Cartesian X and Z). The chuck rotates and the tool remains in a turret
16、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. Wire EDMSelect this option to create or edit a Wire EDM postprocessor. The system provides posts for three common wire EDM machine tools: Agie, Mitsub
17、ishi, and Charmilles. 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. 2 AxisYour post has two linear axes. 4 AxisWhen you select this option you get basic four-axis output that you need to customize for your machin
18、e. You may select either coordinate or angle output. For coordinate mode, the post will calculate the position on the upper plane where you need to have the wire to achieve the programmed tilt defined by the tool axis. For angles mode you get the basic Agie output. The post calculates the tilt along
19、 the direction of motion and the tilt perpendicular to the direction of motion. When you select the Agie control, you get the Agie Q and R angle output. When you select Mitsubishi or Charmiles, you get the U and V output for the upper plane coordinates. ControllerYou must now select a basic controll
20、er 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 Heidenhain mill controls. The choice of controllers is difficult for mill, lathe, or wire edm
21、machine tools. After making all your selections the system uses all the information you have selected to create your post. Changing Postprocessor KinematicsYou can start with any existing postprocessor created with Post Builder and change the kinematics or the inch/metric setting through the followi
22、ng process: 1.Make a new post.2.Select the new inch or metric setting.3.Select the new kinematics setting.4.Select the user option on the controller to browse for the post you want to change.5.Create the post.Your new post now has all of the custom commands and edits from your original post, but wit
23、h new kinematics and/or inch/metric settings. 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 below: 1.Go to Program & Tool PathProgramMotion. In this dialog you may need to change the Linear Move and Rapi
24、d Move blocks. To do this, follow the steps below: a.Click on the Linear Move, or Rapid Move blue event marker.b.In the dialog that displays, select the down arrow next to the drop down menu.c.From the drop down menu select fourth_axis.d.Click and hold the Add Word button until a block displays.e.Dr
25、ag the block over the block until a white outline appears, than release the mouse.If you have 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. 2.Go to Program & Tool PathProgramCanned Cycles and sele
26、ct the Common Parameters event marker. Add the fourth_axis word in the same manner as the Linear and Rapid Move event markers. OptionsValidate Custom CommandsYou can turn on or turn off error checking while importing or creating custom commands:Unknown CommandsWhen you set this option to active it d
27、etects any syntax error in the name of a command.Unknown BlocksWhen you set this option to active it detects any references to an undefined block. Unknown AddressesWhen you set this option to active it detects any reference to undefined addresses. This can be used to validate commands such as mom_fo
28、rce_once. Unknown FormatsWhen this option is set to active it detects references to undefined formats. This is a very useful feature that prevents many run-time errors that are much more difficult to debug in a run-time situation. If you select the dotted line you can create a detached dialog. Back
29、Up PostThis preference allows you to define how the system creates backup versions of Post Builder files. You have the following choices: Backup OriginalBacks up the original part. All intermediate versions are overwritten. Every SaveBacks up every time you save. This is the default settingNo Backup
30、The system only saves the last version. Help FunctionsBalloon HelpSelect this option to activate 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 He
31、lp during postprocessor creation mode. This example shows the name of the block the system outputs as well as the format of the output code.When you select the Balloon Help icon, it turns to a pink background color. When you cancel the selection, the icon returns to its gray background color.Context
32、 Sensitive HelpSelect 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 Context Sensitive Help mode and you select Program Start Sequence, the system displays the following description. This feature is not implemented for all dialogs and objects.When you activate this f
