Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore

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Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore CIE- 25 Marks Course Title: JIGS AND FIXTURES Scheme (L:T:P) : 4:0:0 Total Contact Hours: 52 Type

1 Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore CIE- 25 Marks Course Title: JIGS AND FIXTURES Scheme (L:T:P) : 4:0:0 Total Contact Hours: 52 Type of Course: Lectures, Self Study & Quiz Credit :04 Course Code: 15TD43T Core/ Elective: Core SEE- 100 Marks Prerequisites: Knowledge of elements of press tool, Engineering Graphics II and Mathematics. Course Objectives: 1. To provide basic concept of Jigs and Fixtures and their functions. 2. To know the types of Jigs & Fixtures. 3. To know the design considerations in relation to machine. 4. To know the purpose of work-piece location, and importance of fool proofing. 5. To know the applications and failures could occur in Industry. Course Outcomes: On successful completion of the course, the students will be able to attain CO: Course Outcome CL Linked PO Teaching Hrs CO1 CO2 To understand fundamental principles and applications of Jigs and fixtures in industry. R/U/A 1,2,3,4 To study the importance of work piece location and degrees of freedom R/U/A 1,2,3, CO3 To understand the requirements and types of clamping R/U/A 1,2,3,4 08 CO4 To study the guiding elements of jigs R/U/A 1,2,3,4,8 08 CO5 To understand Jigs and its types and failure causes and remedies To understand Fixtures and its types CO6 and failure causes and remedies. U/A 1,2,3,4,6,8, 10 U/A 1,2,3,4,6,8, Total sessions 52 Legend: R; Remember, U: Understand A: Application Directorate Of Technical Education Karnataka State 15TD43T 1

2 COURSE-PO ATTAINMENT MATRIX Course JIGS AND FIXTURES Programme Outcomes Level 3- Highly Addressed, Level 2-Moderately Addressed, Level 1-Low Addressed. Method is to relate the level of PO with the number of hours devoted to the COs which address the given PO. If >40% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 3 If 25 to 40% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 2 If 5 to 25% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 1 If < 5% of classroom sessions addressing a particular PO, it is considered that PO is considered not-addressed. COURSE CONTENT AND BLUE PRINT OF MARKS FOR SEE/ Unit No Unit Name Hour Questions to be set for SEE/Marks Marks weightage weightage (%) 1 2 INTRODUCTION TO JIGS & FIXTURES LOCATION AND DEGREES OF FREEDOM R U A CLAMPING GUIDING ELEMENTS JIGS FIXTURES Total Legend: R; Remember, U: Understand A: Application UNIT I: INTRODUCTION TO JIGS AND FIXTURES 08Hrs Introduction - Definition of jigs and fixtures, Role of Jigs and Fixtures in industries, Functions of Jig and Fixtures. Inter-changeability, Difference between jigs and fixtures, Design considerations for jigs and fixtures, Elements of jigs & fixture, Materials, Advantages and disadvantages, Applications. use of hydraulic and pneumatic power sources in Jigs and fixtures. UNIT II: LOCATION AND DEGREES OF FREEDOM 10Hrs Location - Definition and purpose of location - Degrees of freedom, Arresting the freedom of movement, Principles of location - Types of locators Locating methods and chip removal, Locating by Flat surface, support pads & pins Conical locators, Fixed & Adjustable, Diamond locators V Locators- Fixed & Adjustable - Redundant location Errors caused in locating - Fool proofing, Directorate Of Technical Education Karnataka State 15TD43T 2

3 Necessity of fool proofing, Necessity of feet in Jigs, Swarf removal. Clearing of chips UNIT III: CLAMPING 08Hrs Clamping - Definition and need - Requirements of a good clamping system - Types of clamping and their usage, Plate or strap clamp, Solid clamp with heel pin, Sliding clamps, slotted clamp, pivoted clamps, latch clamps, swing clamps, Quick action clamps, multiple clamps & Power clamps Failures of clamping. UNIT IV: GUIDING ELEMENTS 08 Hrs Guiding Elements - Introduction drill bushes, Classification of drill bushes - Types of bushes Fixed bush, Liner bush, Slip bush, Threaded bush - Special bushes Headed & Headless bushes, shaped bush, extended bushes. - Feet and Reference plugs, Materials and hardness requirements, Failures of elements UNIT V: JIGS 09Hrs Jigs, Types of Jigs - Introduction - Constructional features - Elements of a jigs - Types of jigs Plate Jig, Template Jig, Table Jig, Angle plate Jig, Sandwich Jig, Box Jig, Leaf Jig, Indexing Jig. Solid jig Post jig Pot jig Turn over jig Latch jig Box jig Drill Jig, Marking Jig. - Indexing Device, Liner & Rotary indexing - Design considerations - Jigs design for some simple components Rigidity factors. Easy handling. Failures of Jigs, causes and remedies. UNIT VI: FIXTURES 09Hrs Fixtures, Types of Fixtures - Introduction - Constructional features - Elements of a fixtures - Setting blocks and tenons - Types of fixtures, Assembly fixtures Collets, Turning fixtures -Mandrels and Chuks, Plate Fixtures and Angle Plate Fixtures. Milling fixtures Indexing fixtures, Grinding fixtures - Design considerations - Fixture design for some simple components Rigidity factors.easy handling. Failures of fixtures, causes and remedies. TEXT BOOKS 1. An Introduction to jig and Tool Design - M H A KEMPSTER 2. Jigs and Fixtures - P H Joshi 3. Jigs and Fixtures - Hiram E. Grant 4. Jigs and Fixtures - Franklin Jones 5. Jigs and Fixtures - Hoffman REFERANCE BOOKS Directorate Of Technical Education Karnataka State 15TD43T 3

4 1. Hand Book of Jigs & Fixture Design BOYES 2. Jigs and Fixture and gauges for Limited Production 3. Hand Book of Fixture Design FRANK W WILSON LIST OF SOFTWARE/LEARNING WEBSITES 1. IGS_AND%20FIXTURES.pdf SPECIAL INSTRUCTIONAL STRATEGIES UNIT NO UNIT NAME INTRODUCTION TO JIGS & FIXTURES LOCATION AND DEGREES OF FREEDOM CLAMPING STARATEGIES Industrial visits, Video Presentation. Discussions, Teaching, Demonstration Video Presentations. Demonstration of jigs and fixtures available in the premises. Industrial Visits 4 GUIDING ELEMENTS Demonstration, Video Presentation. 5 JIGS 6 FIXTURES Demonstration, Video Presentation. Industrial Visits Demonstration, Video Presentation. Industrial Visits SUGGESTED LIST OF STUDENT ACTIVITYS Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one) Each student should do any one of the following type activity or similar activity related to the course and before take up, get it approved from concerned Teacher and HOD. Each student should conduct different activity and no repeating should occur 1 Visit a nearby industry and study the use of Jigs and Fixtures in that industry and prepare a report of 500 words. Add necessary with sketch in the report Directorate Of Technical Education Karnataka State 15TD43T 4

5 2 3 Prepare a chart with relevant sketches and examples, emphasizing the importance of Fool Proofing. Prepare a chart on guiding elements used in Jigs and fixtures 4 The student should Download and present a presentations related to importance of jigs and fixtures in industry and submit a report of 500 words. MODEL OF RUBRICS /CRITERIA FOR ASSESSING STUDENT ACTIVITY RUBRICS FOR ACTIVITY( 5 Marks) Dimension Selection of industry Unsatisfactory Developing Satisfactory Good Exemplary Student Score Not related Below Suits the topic Most suitable Excellent Ex: Process Data & charts collection Not related Below above expectation Out standing coordination Lack of responsibilities Below Above expectation Outstanding Discuss and suggestion Poor Below Above expectation Excellent / Total marks= Note: This is only an example. Appropriate rubrics/criteria may be devised by the concerned faculty (Course Coordinator) for assessing the given activity. Directorate Of Technical Education Karnataka State 15TD43T 5

6 Students Students Course Assessment and Evaluation Scheme: Direct Assessment Indirect Assessment What CIE IA SEE End Exam Student Feedback on course End of Course Survey To whom When/Where (Frequency in the course) Three IA tests( of three tests will be computed) Student Activities End of the course Middle of the course End of the course Max Marks Evidence collected 20 Blue books 05 Activity sheets 100 Answer scripts at BTE Feedback forms Questionnaires Course outcomes Note: I.A. test shall be conducted for 20 marks. marks of three tests shall be rounded off to the next higher digit. 1,2,3,4,5,6 1,2,3,4,5,6 1,2,3Delivery of course 1,2,3,4,5,6 Effectiveness of Delivery of instructions & Assessment Methods Note to IA verifier: The following documents to be verified by CIE verifier at the end of semester 1. Blue books( 20 marks) 2. Student suggested activities report for 5 marks and should be assessed on RUBRICS 3. Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods. MODEL QUESTION PAPER (CIE) Test/Date and Time Semester/year Course/Course Code Max Marks Ex: I test/6 th week of IV SEM JIGS AND FIXTURES sem Am Year: Course code:15td43t 20 Name of Course coordinator : Units:1, Co: 1,2,3.4,10 Note: Answer all questions Q. no Question CL C O PO 1 Define jigs and Fixtures.Explain their role in Industry 5 MARKS R/U/A 1 1,2,3, 4 2 Explain the degrees of freedom 5 MARKS R/U/A 2 3 Illustrate the advantages of Jigs and Fixtures with examples. 10MARKS Or Explain the principle of location and explain with sketch Diamond Locators. 10MARKS R/U/A 1,2 1,2,3, 4 1,2,3, 4 Directorate Of Technical Education Karnataka State 15TD43T 6

7 MODEL QUESTION PAPER (SEE) Diploma in Tool and Die making. IV Semester Course title: Jigs and Fixtures (Answer any 6 questions from part A and Any 7 from Part B) PART-A (Each questions carries 5 marks) 1. Define fixture and list the purpose of fixture. 2. Define Jig and its application. 3. Name the factors considered while designing fixture 4. Explain chip removing process and its principles 5. Give example why fool proofing is necessary 6. Explain swing clamps with their advantages and disadvantages 7. Define drill bushes and their application 8. State the methods of determining the bushes 9. Explain Rotary device and their disadvantages 10. Distinguish between latch jig and sandwich jig PART-B (Each questions carries 10 marks) 1. Sketch Fixed and Adjustable locators 2. Write why Swarf removal is required 3. Sketch and label diamond locators and V locators. 4. Sketch and explain Power clamps 5. Explain the causes of clamping failure 6. Sketch Slips bushes and explain briefly 7. List the types of guiding elements and their application 8. Sketch and explain about Box jig and write their application 9. Explain Design consideration on jigs 10. Determine the types of turning fixtures. Directorate Of Technical Education Karnataka State 15TD43T 7

8 MODEL QUESTION BANK Diploma in Tool and Die Making IV Semester Course title: Jigs and Fixtures CO I:. To understand fundamental principles and applications of Jigs and fixtures in industry. LEVEL: REMEMBER QUESTIONS 1. Define Jig and its application. 2. Define fixture and list the purpose of fixture. 3. Name the factors considered while designing fixture LEVEL: UNDERSTANDING QUESTIONS 1. Explain jig and its disadvantages 2. Explain jig and its advantages 3. List the material used fir jigs and fixtures 4. Name the elements used for jigs and fixtures LEVEL: APPLICATION QUESTIONS 1. List the difference between jig and fixture. 2. Name any four advantages of fixture on machines. 3. List the functions of jigs CO 2:. To study the importance of work piece Location and Degrees of freedom LEVEL: REMEMBER 1. Define Location and its purpose. 2. Define degrees of freedom 3. State the principles of location LEVEL: UNDERSTANDING 1. Describe types of locators. 2. Explain six degrees of freedom. 3. Explain chip removing process and its principles 4. Give example why fool proofing is necessary LEVEL: APPLICATION 1. Sketch Fixed and Adjustable locators 2. Write why Swarf removal is required 3. Sketch and label diamond locators and V locators. C0 03: To understand the requirements and types of Clamping LEVEL: REMEMBER 1. Define clamping 2. List the types of clamping system 3. State the advantages of clamping LEVEL: UNDERSTANDING Directorate Of Technical Education Karnataka State 15TD43T 8

9 1. Distinguish between sliding clamps and slotted clamps 2. Classify the principles of clamping 3. Explain swing clamps with their advantages and disadvantages LEVEL: APPLICATION. 1. Sketch and explain Quick action clamp 2. Sketch and explain Power clamps 3. Explain the causes of clamping failure 4. Explain use Toggle clamp CO 04: To study the Guiding elements of jigs and fixtures LEVEL: REMEMBER 1. List the Guiding elements in jigs. 2. Define drill bushes and their application 3. State the methods of determining the bushes LEVEL: UNDERSTANDING 1. Differentiate between fixed bush and liner bushes 2. Explain the material and hardness used for guiding elements 3. Explain feet and resting plugs. 4. Explain Guiding elements in jigs. LEVEL: APPLICATION 1. Sketch Slips bushes and explain briefly 2. List the types of guiding elements and their application 3. Write the causes of failure in guiding elements. CO 05: To understand Jigs and its types and failure causes and remedies. LEVEL: REMEMBER 1. Define constructional features of jigs 2. List the features of jigs 3. List the type of jigs LEVEL: UNDERSTANDING 1. Explain Indexing device and their advantages. 2. Explain Rotary device and their disadvantages 3. Distinguish between latch jig and sandwich jig LEVEL: APPLICATION 1. Sketch and explain about leaf jig and label all the parts 2. Sketch and explain about Box jig and write their application 3. Explain Design consideration of jigs. 4. Explain Design consideration of fixtures. CO 06: To understand Fixtures and its types and failure causes and remedies. LEVEL: REMEMBER 1. List the types of turning fixtures. Directorate Of Technical Education Karnataka State 15TD43T 9

10 2. Define constructional features of Fixture 3. List the features of Fixture 4. List the type of fixture LEVEL: UNDERSTANDING 1. Explain setting block and tenons 2. Describe types of collect with neat sketch 3. Distinguish between Chucks and collets LEVEL: APPLICATION 11. Write the advantages of turning fixtures. 12. List the different types of chucks and their application 13. Sketch and explain Angle plate jig and label the parts. 14. Write the Rigidity factors on fixture Directorate Of Technical Education Karnataka State 15TD43T 10

Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore

Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore Course Title: MECHATRONICS Scheme (L:T:P) : 4:0:0 Total Contact Hours: 52 Type of Course: Lectures,