A holding fixture for a workpiece 37.5 mm thick at the clamp locations is being designed. The detail of one of the clamps is shown in the figure. A spring is required to drive the clamp upward when removing the workpiece with a starting force of 45 N. The clamp screw has an M10x1.25 thread. Allow a diametral clearance of 1.25 mm between it and the uncompressed spring. It is further specified that the free length of the spring should be Lo S 48 mm, the solid height Ls S 31.5 mm, and the safety factor when closed solid should be n, 21.2. Starting with d=2 mm, design a suitable helical coil compression spring for this fixture. For A227 HD steel, wire diameters are available in 0.2-mm increments between 0.2 to 3.2 mm.
A holding fixture for a workpiece 37.5 mm thick at the clamp locations is being designed. The detail of one of the clamps is shown in the figure. A spring is required to drive the clamp upward when removing the workpiece with a starting force of 45 N. The clamp screw has an M10x1.25 thread. Allow a diametral clearance of 1.25 mm between it and the uncompressed spring. It is further specified that the free length of the spring should be Lo S 48 mm, the solid height Ls S 31.5 mm, and the safety factor when closed solid should be n, 21.2. Starting with d=2 mm, design a suitable helical coil compression spring for this fixture. For A227 HD steel, wire diameters are available in 0.2-mm increments between 0.2 to 3.2 mm.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![A holding fixture for a workpiece 37.5 mm thick at the clamp locations is being designed. The
detail of one of the clamps is shown in the figure. A spring is required to drive the clamp upward
when removing the workpiece with a starting force of 45 N. The clamp screw has an M10x1.25
thread. Allow a diametral clearance of 1.25 mm between it and the uncompressed spring. It is
further specified that the free length of the spring should be Lo ≤ 48 mm, the solid height L, S
31.5 mm, and the safety factor when closed solid should be n, 21.2. Starting with d=2 mm,
design a suitable helical coil compression spring for this fixture. For A227 HD steel, wire diameters
are available in 0.2-mm increments between 0.2 to 3.2 mm.
Spherical washer
Slot
Workpiece -
Clamp screw
AAAAAA
Clamp
Groove
Pin](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F983b1431-c744-46c0-a98d-7321dca3086c%2Fd9784e61-8bf6-470c-8bfb-d009b572ed2d%2Fkur68pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A holding fixture for a workpiece 37.5 mm thick at the clamp locations is being designed. The
detail of one of the clamps is shown in the figure. A spring is required to drive the clamp upward
when removing the workpiece with a starting force of 45 N. The clamp screw has an M10x1.25
thread. Allow a diametral clearance of 1.25 mm between it and the uncompressed spring. It is
further specified that the free length of the spring should be Lo ≤ 48 mm, the solid height L, S
31.5 mm, and the safety factor when closed solid should be n, 21.2. Starting with d=2 mm,
design a suitable helical coil compression spring for this fixture. For A227 HD steel, wire diameters
are available in 0.2-mm increments between 0.2 to 3.2 mm.
Spherical washer
Slot
Workpiece -
Clamp screw
AAAAAA
Clamp
Groove
Pin
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