NX CAM : Deep Hole Drilling. Using pilot holes and a new operation subtype with additional cycle parameters to drill deep holes.

Transcription

1 Siemens PLM Software NX CAM : Deep Hole Drilling Using pilot holes and a new operation subtype with additional cycle parameters to drill deep holes. Answers for industry.

2 About NX CAM NX TM CAM software has helped many of the world s leading manufacturers and job shops produce better parts faster. You can also achieve similar benefits by making use of the unique advantages NX CAM offers. This is one of many hands-on demonstrations designed to introduce you to the powerful capabilities in NX CAM In order to run this demonstration, you will need access to NX CAM Visit the NX Manufacturing Forum to learn more, ask questions, and share comments about NX CAM. 2

3 Hands-on Demonstration: Deep Hole Drilling Deep Hole Drilling is a new operation subtype designed to meet the special requirements of drilling deep holes. Additional Cycle Parameters allow you to control spindle behavior when engaging into the pilot hole and retracting from the deep hole as well as to control coolant when engaging, cutting, and retracting. Control point Top Offset distance defines minimal approach clearance plane Rapto Offset distance defines starting plane Engage Conditions Cut Conditions Retract Conditions at bottom Retract Conditions at top Approach move from the clearance plane to the minimal approach clearance plane. Engage move from the minimal approach clearance plane to the starting plane. Feed move from the starting plane to the cut depth. Retract moves Note: The intersection handling required for cross holes is not fully implemented in NX Therefore, all intersections (large and small) are treated the same and crossed with the same feed rate. This will be improved in NX

4 Prerequisites: 1. You will need access to NX CAM in order to run this demonstration. 2. If you haven t done so already, download and unzip deep_hole_drilling.7z. Demo: 1. Open deep_hole_drilling.prt in NX. Create the pilot hole operation You will begin by drilling pilot holes. 1. Click Create Operation. 2. Select hole_making in the Type list. 3. Select Drilling. 4. Specify the following: Program: Tool: Geometry: Method: DRILL STD_DRILL_8MM FG_STEP1HOLE_STEP1POCKET DRILL_METHOD 5. Type PILOT in the Name box. 6. Click OK. 7. Click Specify Feature Geometry. The pilot hole should have a depth of roughly twice the tool diameter. 8. Double-click the Depth lock icon to unlock it. 4

5 9. Type in the Depth box and press Enter. The three features in the geometry group show the mm pilot hole depth. 10. Click OK in the Feature Geometry dialog box. 11. Click Generate. 12. Click Verify. 13. Select the Replay tab. 14. Set the Animation Speed to Click Play. 5

6 16. Click OK in the Tool Path Visualization dialog box. 17. Click OK in the Drilling dialog box. Create the deep hole drilling operation You will create a Deep Hole Drilling operation that uses the pilot holes. 1. Click Create Operation. 2. Select Deep Hole Drilling. 3. Specify the following: Program: Tool: Geometry: Method: DRILL GUN_DRILL_8MM FG_STEP1HOLE_STEP1POCKET DRILL_METHOD 4. Click OK. 5. Click Specify Feature Geometry. There are no intersecting holes, so there is no need to specify an intersection strategy. 6. Select None from the Intersection Strategy list. 6

7 The Control Point parameter is new. If Control Point is set to In-Process Feature, the tool will rapid through the pilot hole (1) as it approaches the control point (2) located at the in-process feature. This is generally an undesirable behavior. If Control Point set to Machining Feature, the tool will rapid to the control point at the machining feature (1) and then move through the pilot hole at the specified engage feed rate (2) as it approaches the in-process feature. This is the desirable behavior in most cases. 7. Be sure Machining Feature is selected from the Control Point list. 8. Click OK to accept the feature geometry. 9. Click Feeds & Speeds. 7

8 10. In the Feed Rates section of the dialog box under More, type in the Engage box so that the engage feed rate is 50% of the cut feed rate. 11. Click OK in the Feeds and Speeds dialog box. When the First Cut and Last Cut options are used (default values can be found by clicking Edit Cycle and viewing the First Cut and Last Cut values in the Cut Conditions section of the dialog box), it is useful to specify the colors for these motions in order to clearly see each move. Before generating the tool path, you will specify the First Cut and Last Cut display colors so you can see each move clearly. 12. In the Options section of the dialog box, Click Edit Display. 13. Click Path Display Colors. 14. Change First Cut to White and Last Cut to Black. 15. Click OK in the Path Display Colors dialog box. 16. Click OK in the Display Options dialog box. 17. Click Generate. 18. Change the view orientation to Front. 19. Click Verify. 20. Click Step to move the tool through the path one step at a time. 8

9 For each hole, the tool engages through the pilot hole (1) at the specified engage feed rate (50% cut feed rate) to the point defined by the Top Offset (2). It then continues at half the cut feed rate as it enters the material, traveling through the First Cut move (3) to the Control Point (4). It then deep drills (5) at the cut feed rate ( mmpm) to the Last Cut move (6) where it slows to half the cut feed rate (this applies to through holes only) before retracting. 21. Click OK to complete the tool path visualization. Two new Cycle options allow you to drill with or without chip breakage. 9

10 Deep drilling and Deep drilling with chip breakage cycles are new for Sequential Drilling and Deep Hole Drilling operations. Deep drilling with chip breakage contains the same cycle parameters as Deep drilling cycle, but with the additional parameters currently used for Breakchip drilling. 22. With Deep drilling selected from the Cycle list, click Edit Cycle. The Engage Conditions section of the Cycle Parameters dialog box is new. These options control the coolant and spindle behavior as the tool moves through the pilot hole. The Coolant options in the Cut Conditions section and the Spindle and Coolant options in the Retract Conditions section of the dialog box are also new. 10

11 In the Retract Conditions section of the dialog box, Location specifies where to apply the spindle and coolant retract conditions. At Bottom applies the specified spindle and coolant conditions before retracting out of the hole. At Top applies the specified spindle and coolant conditions at the deep drilling start plane conditions after retracting out of the hole. Bottom Release Distance specifies how far from the hole bottom to apply the coolant and spindle retract conditions. 23. Click OK in the Cycle Parameters dialog box. 24. Click OK. 25. Click OK to finish the operation. 26. Close the part without saving. 11

12 Siemens Industry Software Headquarters Granite Park One 5800 Granite Parkway Suite 600 Plano, TX USA Americas Granite Park One 5800 Granite Parkway Suite 600 Plano, TX USA Europe Stephenson House Sir William Siemens Square Frimley, Camberley Surrey, GU16 8QD +44 (0) Asia-Pacific Suites , 43/F AIA Kowloon Tower, Landmark East 100 How Ming Street Kwun Tong, Kowloon Hong Kong About Siemens PLM Software Siemens PLM Software, a business unit of the Siemens Industry Automation Division, is a leading global provider of product lifecycle management (PLM) software and services with seven million licensed seats and more than 71,000 customers worldwide. Headquartered in Plano, Texas, Siemens PLM Software works collaboratively with companies to deliver open solutions that help them turn more ideas into successful products. For more information on Siemens PLM Software products and services, visit Siemens Product Lifecycle Management Software Inc. Siemens and the Siemens logo are registered trademarks of Siemens AG. D-Cubed, Femap, Geolus, GO PLM, I-deas, Insight, JT, NX, Parasolid, Solid Edge, Teamcenter, Tecnomatix and Velocity Series are trademarks or registered trademarks of Siemens Product Lifecycle Management Software Inc. or its subsidiaries in the United States and in other countries. All other logos, trademarks, registered trademarks or service marks used herein are the property of their respective holders. 03/