后处理构造器说明书 毕业设计论文外文翻译.doc
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1、 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_tool.puiOnly
2、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 the blocks that
3、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 information for
4、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 Post Builder. U
5、se 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.Procedures in the Bas
6、e 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 overwrite proce
7、dures 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 longer guarantee
8、 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 the following
9、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 inch, all
10、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 inch to me
11、tric 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 your mach
12、ine 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 section
13、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 Your post ha
14、s 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 and Z),
15、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 that move
16、s 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, Mitsubishi, and
17、 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 machine. You ma
18、y 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 the dire
19、ction 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 controller type.
20、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 machine t
21、ools. 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 following proces
22、s: 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 with ne
23、w 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 Rapid M
24、ove 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.
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