7. Read the assembly drawing of a Drill Jig, and finish the questions below. (30 points)...
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7. Read the assembly drawing of a Drill Jig, and finish the questions below. (30 points) (1) The front view is a Sectional Full Sectional view; (2) Explain the meanings of Ø12H7/n6, 012 Drill Bize H Hole base system In shaft designation this fit is Transition view, the left side view is a 7 IT grade of hole 6 lower deviation of shaft. (clearance, transition, interference); (3) Explain the meaning of M12-7H/6g, M Thread 12 diameter 7H Tolerance grade of neut 68 Tolerance grade of bolt, it is a bine (4) How to fix a workpiece as it is machined? By using drill Jig we can fix the workplece whash it is machimed. (5) Use a scale 1:1 and appropriate views for representing the structure of Jig body 1, dimension sizes reading from the assembly drawing directly, and complete the title block. G 5?? Note: Ø12H7: 12+0, 12+0.018; Ø12n6: 12+0.012, 12+0.023. (fine /coarse) tooth. Question 7 a workpiece 12H7 65 12-7H/6g Disassemble part 3 5 L Working principle: 3 A drill Jig is a device through which holes on a workpiece may be drilled accurately and efficiently. It positively locates and clamps a part and incorporates drill bushes for guiding. 2 1 No The workpiece to be machined is mounted on a location post 2 which is fitted into Jig body 1 where four drill bushes 5 are pressed. Parts 3 and 4 form the clamping device. Part 4 has a large outside diameter DRN and a slot which slips over the shank of the part 3. CHD 110 Drill bush Washer Screw Location post Jig body Description ZJLT (DATE) (DATE) 6 T10A 1 50 1 50 1 40 1 45 QTY Material Drill Jig Remarks Scale Total NAT DRN CHD DATE DATE Scale MATL QTY 7. Read the assembly drawing of a Drill Jig, and finish the questions below. (30 points) (1) The front view is a Sectional Full Sectional view; (2) Explain the meanings of Ø12H7/n6, 012 Drill Bize H Hole base system In shaft designation this fit is Transition view, the left side view is a 7 IT grade of hole 6 lower deviation of shaft. (clearance, transition, interference); (3) Explain the meaning of M12-7H/6g, M Thread 12 diameter 7H Tolerance grade of neut 68 Tolerance grade of bolt, it is a bine (4) How to fix a workpiece as it is machined? By using drill Jig we can fix the workplece whash it is machimed. (5) Use a scale 1:1 and appropriate views for representing the structure of Jig body 1, dimension sizes reading from the assembly drawing directly, and complete the title block. G 5?? Note: Ø12H7: 12+0, 12+0.018; Ø12n6: 12+0.012, 12+0.023. (fine /coarse) tooth. Question 7 a workpiece 12H7 65 12-7H/6g Disassemble part 3 5 L Working principle: 3 A drill Jig is a device through which holes on a workpiece may be drilled accurately and efficiently. It positively locates and clamps a part and incorporates drill bushes for guiding. 2 1 No The workpiece to be machined is mounted on a location post 2 which is fitted into Jig body 1 where four drill bushes 5 are pressed. Parts 3 and 4 form the clamping device. Part 4 has a large outside diameter DRN and a slot which slips over the shank of the part 3. CHD 110 Drill bush Washer Screw Location post Jig body Description ZJLT (DATE) (DATE) 6 T10A 1 50 1 50 1 40 1 45 QTY Material Drill Jig Remarks Scale Total NAT DRN CHD DATE DATE Scale MATL QTY
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Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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