A cam is required for an automated transfer mechanism. The cam follower must rise upward 10 mm with constant velocity in 3.0 sec, dwell for 2 sec, fall with constant velocity in 4 sec, dwell for 1 sec, and then repeat the sequence . a) Determine the required speed of the cam. b) Draw the displacement diagram along with velocity curve. c) The base circle diameter of the cam is 50 mm. Plot the cam profile when a knife-edge follower is incorporated.

A cam is required for an automated transfer mechanism. The cam follower must rise upward 10 mm with constant velocity in 3.0 sec, dwell for 2 sec, fall with constant velocity in 4 sec, dwell for 1 sec, and then repeat the sequence . a) Determine the required speed of the cam. b) Draw the displacement diagram along with velocity curve. c) The base circle diameter of the cam is 50 mm. Plot the cam profile when a knife-edge follower is incorporated.

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter8: Computer Numerical Control

Section8.8: Computer-aided Design And Computer-aided Manufacturing

Problem 6RQ: Why should a toolpath be verified on the screen of a CAM system prior to creating the program code?

See similar textbooks

Similar questions

flat faced reciprocating follower has the following motion:a) The follower moves out for 80° of cam rotation with uniformacceleration and retardation, the acceleration being twice theretardation.b) The follower dwells for the next 80° of cam rotation.c) It moves in for the next 120° of cam rotation with uniformacceleration and retardation, the retardation being twice theacceleration.d) The follower dwells for the remaining period.The base circle diameter of the cam is 60 mm and the stroke of thefollower is 20 mm. The line of movement of the follower passes throughthe cam centre.Draw the displacement diagram and the profile of the cam very neatlyshowing all constructional details.
11:. A elearning.act.edu.om | 54. EN MIME3220-1 SK 2021-2 Topic 16 | Lab Test2(Cams) Question 6 Not yet answered Marked out of 0.50 P Flag question The smallest circle drawn, tangential to the cam profile is called O prime circle none O pitch cirlce O base circle Previous page Next page ( Belt Drives Jump to...
Table 1. Geometry of the cam. Point x (in.) | y (in.) 1 2.20 0.00 1.28 0.88 3 0.66 1.14 4 0.00 1.20 -0.60 1.04 6. -1.04 0.60 7 -1.20 0.00 e 1. Schematic of cam profile. If the cam follows a straight line profile from x=1.28 to x= 0.66, what is the value of y at x=1.10 using Newton's divided difference method of interpolation and a first order polynomial. If the cam follows a quadratic profile from x=2.20 to x=1.28 to x=0.66, what is the value of y at x=1.10 using Lagrange method of interpolation and a second order polynomial. Find the cam profile using all seven points in Table 1, Newton's divided difference method of interpolation and a sixth order polynomial. Find the cam profile using all seven points in Table 1, Least-Squares method of regression and a sixth order polynomial.
What good does it do to preview a toolpath in a CAM system before the real program code is written?
Given a cam motion 0 degrees to 90 degrees-dwell 90 degrees to 180 degrees- rise by 22mm using simple harmonic motion 180 degrees to 270°- dwell at 22mm 270 degrees to 360 degrees-fall by 22mm back to start position using simple harmonic Draw a rough sketch for the SVAJ Diagram
a)Find the degrees of freedom. b) Draw the kinematic chain. c) Find and mark the instantaneous centers of rotation on the figure d)Do the velocity analysis. e) Do the acceleration analysis.
The kinematic diagram is given as ?12 = 600 and the speed of the mechanism is constant and ?'-12 = 50 rad/second in the slide mechanism, the limb dimensions of which are given below. Find the following items. a) Write the vector closure equations. b) Put the vector closure equations in scalar form. c)Find ?13, ?14. d)Find s'13, ?14. e)Find s'', ?14.
Give a full presentation on Cams
In the kinematic diagram, limb dimensions are given below, in the arm slide mechanism, the actuating limb angular position is given as ?12 = 60° and the speed of the mechanism is given as ?'12 = 50rad/s. Do the following operations respectively. a)Write the Vector Closure Equation into scalar form. b)Find S13, ?14 by doing position analysis. c)Find S'13, ?̇'14 by analyzing velocity.
Why is it necessary to check a toolpath visually in a CAM system before the system generates the code for it?
The figure below represents a Whitworth quick-return mechanism which is used in shapers. It is required that the tool holder (link 6) maintain a nearly constant velocity during the cutting stroke but accelerates on the return stroke in order to reduce idle time. The inputs are: VA2=8m/s, a2=0. Find the following: a) The angular velocity m4 b) The magnitude of the sliding velocity and acceleration of A c) Angular acceleration a4 d) Find the acceleration of A via link 2 e) Find the acceleration of A using the angular velocity and acceleration along with the Coriolis effect and the acceleration along the axis of slip (via link 4) f) Find the acceleration of the tool holder (C). 2 (VA2 = 6 m/sec 02 4 B * 45° 0,04 0,A = 19.1 cm 0,B = 10.2 cm 35.6 cm 8.9 cm 04 BC
NEED A COMPLETE SOLUTION PLEASE.. Problem 1: The speed of crank Q2A is 71.62 rpm counter-clockwise. QzA is 2 ft. long and the rest of the members are drawn to scale as shown in the figure. Redraw the figure using our title block template. Solve for the velocity of point A in fps and ips and find the velocity of point B, C, D and E using the a) resolution and composition method and b) instantaneous of axis method. K, = 1 inch: 10 fps Kg = 1 inch: 1 foot