《3轴加工中心(CATIA Version 5 Release 12).pdf》由会员分享，可在线阅读，更多相关《3轴加工中心(CATIA Version 5 Release 12).pdf（387页珍藏版）》请在三一文库上搜索。
1、3 Axis Surface Machining Preface Methodology Recommendations Where to Find More Information Whats New Getting Started Operation-oriented Machining Entering the Workbench Rough Machining the Part Zlevel Machining of the Outside of a Part ZLevel Machining of the Inside Walls of a Part Machining with p
2、arallel contours Checking the results Creating a Rework Area Reworking Generating an NC Output File Generating an NC Output File Generating NC Shopfloor Documentation Area-oriented Machining Entering the workbench Defining the areas to machine Defining the tools to use Rough machining the part Sweep
3、ing the top surface Sweeping the side areas ZLevel on vertical walls Reworking between contours Generating an output file Generating workshop documentation User Tasks Selecting Geometry Using Geometrical Zones Changing the Tool Axis Roughing operations Sweep roughing Roughing Roughing - Ordering Zon
4、es Roughing - Automatic Rough Stock Roughing - Offset on Part 1Page 3 Axis Surface Machining Version 5 Release 12 1Page 3 Axis Surface Machining Version 5 Release 12 Finishing and Semi-finishing Operations Sweeping ZLevel machining Contour-driven machining Contour-driven - Stepover Strategy Contour
5、Driven View and Options Strategy Isoparametric Machining Spiral milling Contouring Points and Lines Wizards Reworking Operations Pencil operations Roughing rework Machining features Defining an area to machine Defining an area to rework Offset Groups Tool path Editor Editing a point Editing an area
6、Transformations Connecting toolpaths Reversing a toolpath Approaches and Retracts in tool paths Packing a tool path Checking tool holder collision Importing Files STL Files Importing Files Workbench Description Menu bar description Toolbar description Machining Operations Toolbar Tool Path Editor To
7、olbar Machining Features Toolbar Geometry Management Specification Tree Reference Information Sweep Roughing Parameters Roughing Parameters Sweeping Parameters ZLevel Parameters Spiral Milling Parameters Contour-driven Parameters Pencil Parameters Isoparametric Machining Parameters Tool Path Editor
8、Parameters Machining/Slope Areas Parameters 2Page 3 Axis Surface Machining Version 5 Release 12 2Page 3 Axis Surface Machining Version 5 Release 12 Macros Parameters Glossary Index 3Page 3 Axis Surface Machining Version 5 Release 12 3Page 3 Axis Surface Machining Version 5 Release 12 Preface 3 Axis
9、Surface Machining is a new generation product that defines and manages NC programs. 3 Axis Surface Machining is dedicated to the machining of 3D geometry work parts with 3-axis machining techniques. It is particularly adapted to the needs of mold, die and tool makers and prototype manufacturers in a
10、ll branches and at all levels of industry. 3 Axis Surface Machining offers easy-to-learn and easy-to-use shopfloor-oriented tool path definition for 3-axis manufacturing. 3 Axis Surface Machining is based on industry-recognized, leading-edge technologies which offer the tightest integration between
11、tool path definition, verification and instant cycle updates. 3 Axis Surface Machining covers full design-to-manufacture processes offering functions for: defining the areas you want to machine, rough machining either by vertical or horizontal planes, roughing rework, sweeping, ZLevel machining, pen
12、cil operations, contour-driven operations, profile contouring, drilling, detecting residual material, defining areas to rework, visualization of the result of the machining program, the production of shopfloor documentation. 3 Axis Surface Machining gives you the freedom to choose the working method
13、s that best suit your needs. Methodology Recommendations Where to Find More Information 4Page 3 Axis Surface Machining Version 5 Release 12 4Page 3 Axis Surface Machining Version 5 Release 12 Methodology Surface Machining is a versatile application, fully adapted to your needs and your working metho
14、ds whether they are machining area-oriented or operation-oriented. You can either define the machining areas on your part and then assign an operation to each of them or you can define your machining process as a series of operations with an area to machine for each operation. A machining area can b
15、e: the whole part (for example, in roughing), a subset of the faces on the part, a subset of faces on the part with a limiting contour. The Getting Started chapter contains two sections, one which demonstrates operation- oriented machining and another which demonstrates area-oriented machining. Befo
16、re starting work with Surface Machining, please ensure that you have an open file (CATPart or CATProduct) and that you are in the Surface Machining workbench (Start NC Manufacturing Surface Machining). Here is a suggested order for operations in a machining program: rough machining operations, (semi
17、-)finishing operations, detection of unmachined areas, reworking of unmachined areas, generation and output of documentation. Area-orientedArea-oriented methodology is useful when you have a complex part to machine and you know in advance what kind of operation you are going to apply to each separat
18、e area. This approach is of great use when, for example, you are going to machine a “family“ of similar parts and when you have dedicated machines for mass production. You define the areas on one part, you assign an operation to each area, and then you machine. At the end you have a program that you
19、 can apply to all of the “members“ of the “family“ at least working cost because: the machining strategy has already been defined (chosen operations), the tool has already been defined, only the area need be redefined, you know exactly what kind of output you require, 5Page 3 Axis Surface Machining
20、Version 5 Release 12 5Page 3 Axis Surface Machining Version 5 Release 12 and as a result the computation can be run in batch to further reduce time loss. 1.Define all of the separate areas to machine on your work piece. 2.Select the area or areas you want to machine with a particular operation. 3.Cl
21、ick the appropriate icon (for example, sweeping). 4.Change the parameters in that operation (if required). The only mandatory data for a operation is the area to machine (with the exception of roughing which requires a rough stock too) and all of the other parameters have default values. We recommen
22、d that you use the default parameters first unless you are sure of the values you wish to enter. 5.Compute the operation. If the results are satisfactory, repeat steps 2, 3, and 4 for all of the other areas to machine. Operation-orientedUse operation-oriented machining when you want to progressively
23、 define your machining program operation-by-operation sequentially. Each operation has the area it deals with defined as part of its data. This approach is useful for single or limited part production because it allows you to define your requirements step-by-step. 1.Choose the operation you want to
24、use. 2.Click the “part“ area in the geometric components of the operation. 3.Select the area(s) to machine either as the whole part with the contextual menu or as a face or group of faces with the face selection wizard. 4.Change the other parameters in the operation (if required). The only mandatory
25、 data for a operation is the area to machine (with the exception of roughing which requires a rough stock too) and all of the other parameters have default values. We recommend that you use the default parameters first unless you are sure of the values you wish to enter. 5.Compute the operation. If
26、the results are satisfactory, continue defining the remaining operations for your machining program. 6Page 3 Axis Surface Machining Version 5 Release 12 6Page 3 Axis Surface Machining Version 5 Release 12 Recommendations If you intend to create complementary geometry, before you start 3 Axis Surface
27、 Machining go to Tools/Options and, in the Display tab of the NC Manufacturing options, tick the box that allows you to create a CATPart to store necessary geometry. If you are not going to modify the geometry, then make sure that this box is not ticked. Before starting 3 Axis Surface Machining, go
28、to Tools/Options and in the Operation tab of the NC Manufacturing option and tick the Use default values of the current program box. This will ensure that when a new operation is created its parameters will be initialized with default values that are appropriate to that operation and not with the va
29、lues from the operation just before it. You should save your CATProcess before generating HTML workshop documentation. If you have defined a safety plane, you should deactivate the Optimize retracts option. If you do not, the safety plane will be ignored. In an operation, if you cannot see the whole
30、 dialog box (particularly the OK, Apply and Cancel buttons), exit your CATIA session and use Settings Control Panel Display Settings to: give a higher value for your screen resolution, or, if you are using large fonts, use small fonts. Depending on your screen size, you may have to use both of the s
31、olutions. 7Page 3 Axis Surface Machining Version 5 Release 12 7Page 3 Axis Surface Machining Version 5 Release 12 Where to Find More Information Prior to reading this book, we recommend that you read the Version 5 Manufacturing Infrastructure Users Guide. 8Page 3 Axis Surface Machining Version 5 Rel
32、ease 12 8Page 3 Axis Surface Machining Version 5 Release 12 Whats New? Enhanced Functionalities Slope area Better visualization of the results. Enable to hide/show Horizontal or Intermediate or Vertical areas. Macros New user interface to define approach/retract. in SMG operation including a builder
33、 if the user needs to create a dedicated macro. Operating mode information can be found in the Sweeping User Task, while all macro data information are available in the Macro Parameters chapter. Roughing Cutting mode is respected for helical strategy. Helical tool path type is now allowed for Part C
34、ontouring. 9Page 3 Axis Surface Machining Version 5 Release 12 9Page 3 Axis Surface Machining Version 5 Release 12 Getting Started Before getting to grips with all of the Surface Machining capacities, here are two short step-by step tutorials that will help guide you through the key functionalities.
35、 You will learn how to use the functions listed below and learn how to define areas on the part to machine, use specific machining operations on the part and output data. There are two ways of defining your machining program, you can either base it on operation definition or on area definition. Try
36、both tutorials to see which method suits your working techniques best. The tutorials should take you 30 minutes each to complete. Operation-oriented Machining Area-oriented Machining 10Page 3 Axis Surface Machining Version 5 Release 12 10Page 3 Axis Surface Machining Version 5 Release 12 Operation-o
37、riented Machining Operation-oriented machining is a method where you define each operation one-by-one. When you define an operation you decide (using the geometry tab) which areas of the part you want to machine with that particular operation. This tutorial teaches you how to: define the operations
38、necessary for the machining of the part below, run the program to create the tool paths, check for residual material, rework the unmachined areas, and produce an APT file and a workshop document. Entering the Workbench Rough Machining the Part Zlevel Machining of the Outside of a Part ZLevel Machini
39、ng of the Inside Walls of a Part Machining with parallel contours Checking the results Creating a Rework Area Reworking Generating an NC Output File Generating an NC Output File Generating NC Shopfloor Documentation 11Page 3 Axis Surface Machining Version 5 Release 12 11Page 3 Axis Surface Machining
40、 Version 5 Release 12 Entering the Workbench This task shows you how to open a part and enter the Surface Machining workbench. 1. Open the SurfaceMachining3.CATProduct file in the samples directory. 2. Select NC Manufacturing Surface Machining from the Start menu. The Surface Machining workbench is
41、displayed. The part surrounded by the rough stock is displayed in the Set Up Editor window along with the manufacturing specifications. 3. Select Product1 containing the shape to machine and the rough stock in the specifications tree and display them in wireframe mode using this icon . 12Page 3 Axis
42、 Surface Machining Version 5 Release 12 12Page 3 Axis Surface Machining Version 5 Release 12 Double click Part Operation.1 in the tree. In the dialog box that is displayed and click the design part icon. Select Open-body.1 in Shape to Machine in the tree and double click in the viewer to validate yo
43、ur selection and redisplay the dialog box. Then click the stock icon, select PartBody in Rough Stock in the tree and double click in the viewer to redisplay the dialog box. 13Page 3 Axis Surface Machining Version 5 Release 12 13Page 3 Axis Surface Machining Version 5 Release 12 Click OK to confirm.
44、The design part defines the reference part that will be used by the application to compute the residual material. The rough stock is the rough stock for the overall part. Each successive operation works on the residual material that is left by the operation before it in the manufacturing program. 4.
45、 Select Manufacturing Program.1 (under PartOperation.1) in the specifications tree to make it the current entity. A program must be current before you can insert program entities such as machining operations, tools and auxiliary commands. 14Page 3 Axis Surface Machining Version 5 Release 12 14Page 3
46、 Axis Surface Machining Version 5 Release 12 Rough Machining the Part This task shows you how to insert a rough machining operation in the program. As this operation will use the default tool and options proposed by the program, you just specify the geometry to be machined. 1. Select the Roughing ic
47、on . A Roughing.1 entity and a default tool are added to the program. The Roughing dialog box is displayed. The status light on the Geometric components tab is red () which means that you must select the part geometry in order to create the operation. 2. Click the red area that represents the part.
48、15Page 3 Axis Surface Machining Version 5 Release 12 15Page 3 Axis Surface Machining Version 5 Release 12 The dialog box shrinks to allow you to select the part in the viewer. 3. In the viewer, click the part. Double click anywhere in the viewer to confirm your selection and to redisplay the dialog
49、box. The red area in the geometric area is now green to indicate that the geometry has been selected. 4. Click the sensitive area that represents the rough stock. The dialog box shrinks to allow you to select the rough stock in the viewer. 5. In the viewer, click the geometry that defines the rough stock. The red area in the geometric components tab is now green to indicate that the geometry has been selected. 16Page 3 Axis Surface Machining Version 5 Release 12 16Page 3 Axis Surface Machining Version 5 Release 12 6. Click Replay. The tool path is displayed