A disc cam-follower mechanism is required for an automated screw machine. The starting position is shown...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A disc cam-follower mechanism is required for an automated screw machine. The starting position is shown in the figure. The mounted part on the platform (i.e. the follower) is to move a distance, a = 4 cm to the right for to = 0.5 second, then remains stationary for 1 second to allow a screw to be added to hole A, then moves an additional distance, b = 2 cm to the right in to = 0.2 second followed by another 1 second when the platform remains stationary again while a screw is added to hole B, and finally returns to the start position in 1.3 second and the cycle repeats. The compression spring ensures that contact is maintained between the follower and the cam. disc cam (=8 0=0⁰ platform part The cam profile in the figure is for illustrative purpose only. It is not the actual profile. Not Scale Unit: cm Z Screw driver M Compression spring Design a cam mechanism for the automated screw machine. a) Determine the required rotational speed of the cam. Express the answer in both rad/s and rotation per minute, RPM (1 mark) b) Select the motion types for each segment and provide clear justifications (2 marks) c) Plot the s va diagrams. Use MATLAB / any other programs you are familiar with to do this task. You may modify the MATLAB codes provided in the tutorial solution. (2 marks) d) What are the maximum velocity and acceleration of the motion cycle? (1 mark) e) Design the cam-plate in Autodesk Inventor and build the simplified dynamic simulation model of the cam-follower showing the motion. Upload the movie file. (4 marks) A disc cam-follower mechanism is required for an automated screw machine. The starting position is shown in the figure. The mounted part on the platform (i.e. the follower) is to move a distance, a = 4 cm to the right for to = 0.5 second, then remains stationary for 1 second to allow a screw to be added to hole A, then moves an additional distance, b = 2 cm to the right in to = 0.2 second followed by another 1 second when the platform remains stationary again while a screw is added to hole B, and finally returns to the start position in 1.3 second and the cycle repeats. The compression spring ensures that contact is maintained between the follower and the cam. disc cam (=8 0=0⁰ platform part The cam profile in the figure is for illustrative purpose only. It is not the actual profile. Not Scale Unit: cm Z Screw driver M Compression spring Design a cam mechanism for the automated screw machine. a) Determine the required rotational speed of the cam. Express the answer in both rad/s and rotation per minute, RPM (1 mark) b) Select the motion types for each segment and provide clear justifications (2 marks) c) Plot the s va diagrams. Use MATLAB / any other programs you are familiar with to do this task. You may modify the MATLAB codes provided in the tutorial solution. (2 marks) d) What are the maximum velocity and acceleration of the motion cycle? (1 mark) e) Design the cam-plate in Autodesk Inventor and build the simplified dynamic simulation model of the cam-follower showing the motion. Upload the movie file. (4 marks)
Expert Answer:
Answer rating: 100% (QA)
a The required rotational speed of the cam is Rads 4 cm 2 cm05 s 02 s 13 s 523 rads RPM 523 rads60 s... View the full answer
Related Book For
Business Math
ISBN: 978-0133011203
10th edition
Authors: Cheryl Cleaves, Margie Hobbs, Jeffrey Noble
Posted Date:
Students also viewed these general management questions
-
Use the information in PA6-1 to complete the following requirements. Info PA6-1 a. New Books sold merchandise to Readers Corner at a selling price of $ 550,000. The merchandise had cost New Books $...
-
Use the information in PB6-1 to complete the following requirements. Info PB6-1 a. Southern Sporting Goods sold merchandise to Sports R Us at a selling price of $ 125,000. The merchandise had cost...
-
Complete the following reactions. If no reaction is tikety, explain why. (a) (b) CH,SH + NaOH -_, (1 equiv.) 25 C CH OH
-
Which of these statements is false? A. Assets = Liabilities + Equity B. Assets Liabilities = Equity C. Liabilities Equity = Assets D. Liabilities = Assets Equity
-
Find a power series representation for the function and determine the interval of convergence. a. b. c. 3 f(x)9 t x
-
Consider PowerBar, the strategy for which is summarized in the PowerBar case. What implications for the culture, structure, systems, and people would you suggest given the nature of the product and...
-
If the boundary layer on the hood of your car behaves as one on a flat plate, estimate how far from the front edge of the hood the boundary layer becomes turbulent. How thick is the boundary layer at...
-
With 19 different lodging or extended stay brands under the Marriott corporate umbrella, is Marriott at risk of making any positioning errors discussed in the chapter? That is, do they have too many...
-
7.) 3 pts. Write the RegExp that matches only the complete HEX number of length 3 or 6. Each number should be in its own line. Some good examples are: #1f1f1F, #AFAFAF, #1AFFal, # 222fff, #F00 But...
-
The balances in the general ledger accounts of Thunder Graphics are shown below. Instructions On the forms provided in your working papers: 1 . Open the accounts in the general ledger with their...
-
A project management plan is the foundation for all projects and contains the key information requested in a typical funding application. Developing a project management plan is a key responsibility...
-
(a) List five elements of the process of confirming accounts receivable which must remain under the auditors control. (b) Explain briefly why it is important that the auditee is not permitted to...
-
As technology advances further in the years to come, how do you think the nature of leadership in work organizations is likely to change?
-
The Fourth Amendment of the U.S. Constitution provides protection against? a. Free speech b. Free press c. Prohibits searches without probable cause d. Discrimination
-
The code of professional ethics applies only the CFE's. T or F
-
List the three facts a plaintiff must prove before a court will award damages against an auditor for negligence.
-
Find the length of the curve defined by the parametric equations ( x(t) = 3t^2 ) and ( y(t) = 2t^3 ) from ( t = 0 ) to ( t = 2 ).
-
The swap spread is the difference between the swap rate and the equivalent-maturity Treasury bond yield. Explain why a widening swap spread may be a signal of deteriorating economic conditions. Plot...
-
Find the tax on the following taxable incomes: $161,200 (head of household)
-
Pat Lechleiter pays an ordinary annuity of $2,500 quarterly at 8% annual interest compounded quarterly to establish supplemental income for retirement. How much will Pat have available at the end of...
-
Pam Trim earns $5,291 monthly, is married, and claims four withholding allowances. Her company pays her retirement, but she pays $52.83 each month for nonexempt insurance premiums. Find her net pay.
-
A Newtonian fluid with $\mathrm{SG}=0.8$ is forced through a capillary tube at a rate of $5 \mathrm{~cm}^{3} / \mathrm{min}$. The tube has a downward slope of $30^{\circ}$ to the horizontal, and the...
-
A liquid is draining from a cylindrical vessel through a tube in the bottom of the vessel, as illustrated in Figure P6.6 below. If the liquid has a specific gravity of 0.85 and drains out at a rate...
-
You must measure the viscosity of an oil that has an SG of 0.92 . To do this, you put the oil into a large container to the bottom of which a small vertical tube, $25 \mathrm{~cm}$ long, has been...
Study smarter with the SolutionInn App