346-5006/01 – Construction and Production of Fixtures (KVP)
| Gurantor department | Department of Machining, Assembly and Engineering Metrology | Credits | 4 |
| Subject guarantor | prof. Dr. Ing. Ivan Mrkvica | Subject version guarantor | prof. Dr. Ing. Ivan Mrkvica |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2019/2020 | Year of cancellation | |
| Intended for the faculties | FS | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Students after completion of the course will focus on issues of special machine construction plant. They will learn the principles of the constitution and clamped workpiece in products with security capabilities required by the production of precision products and resources that can be used for clamping. A practical verification of acquired knowledge is developing its own project preparation for machining a particular part.
Teaching methods
Lectures
Tutorials
Summary
Lectures subject develops chapters connected with fixative equipment
construction. It is based on knowledge of subjects: Flexibility and fixity,
Machine parts and Mechanics. During the lectures frame students familiarize
their selves with principles of workpiece establishment and its clamping in
advance working, with basic elements for mechanical, pneumatically and
hydraulic workpiece clamping, with production precision during cutting in
advance period and with the basic characteristics of special, universal,
associated and constructional fixtures. In the lectures framework students
work individually construction design on the concrete technological procedure
operation of given detail. After lectures termination is graduate able to
solve individually construction for appropriate cutting operation.
Compulsory literature:
Recommended literature:
KALPAKJIAN, S. Manufacturing enginering and technology. Addison – Wesley, Publishing Copany, Inc. 1989. 1199 p.
FRONOBER, M., HENNIG, W., THIEL, H., WIEBACH, H. Vorrichtungen - Gestalten, Bemessen, Bewerten, VEB Verlag Technik Berlin, 1980, 340 S.
Way of continuous check of knowledge in the course of semester
Work on the program. Submission in the credit week.
E-learning
BRYCHTA, J.; ČEP, R.; SADÍLEK, M.; PETŘKOVSKÁ, L.; NOVÁKOVÁ, J. Nové směry v progresivním obrábění [online]. Ostrava : Fakulta strojní VŠB-Technická univerzita Ostrava, 2007 [cit. 2009-1-8]. Scripta electronica. s. 251. Dostupné na WWW:. ISBN 978-80-248-1505-3.
Other requirements
List of check questions:
1. Jigs - definitions, classification, effect.
2. Setting theory with regard to staking out of required degree of freedom.
3. Influence of proportion tolerance on mistakes by setting.
4. Setting mistakes.
5. Calculation of pilot pin proportion.
6. Calculation of pilot pin length by settiong on one or two pins.
7. Mechanical setting parts - division, characteristic.
8. Eccentrics and cams.
9. Clamping screws.
10. Disc expanding holders.
11. Clamping with string collets.
12. Power clamping transmissions.
13. Power and construction calculations of clamps.
14. Jointed leve clamps.
15. Fixtures with plastics medium.
16. Fixtures with hydraulic and pneumatic clamping.
17. Magnetic and electromechanical clamping.
18. Drill bushings and its influence on holes.
19. Partition and parting equipment.
20. Fixture seating on machine tool.
21. Kind of rotating fixture seating.
22. Design process of fixture.
23. Comparison system of fixture design versions.
24. Fixture design calculations.
25. Fixture design for drilling.
26. Fixture for turning.
27. Modular and group fixtures.
28. Universal fixtures and clamping equipment.
30. Economical evaluation of fixtures.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
The program of lectures:
1. Definitions and classification of fixtures.
2. Principles of the workpiece in preparation.
3. Clamping of workpieces - clamping force, mechanical clamping, power transmission, clamping pressure media.
4. Tools piloting - drill sheets and templates, indirect tools piloting.
5. Position of jigs on the machine tool.
6. Design of jigs - for milling, drilling, turning, ...
7. Group and modular jigs.
8. Economy of jigs - the cost of jigs.
Program of exercises and seminars + individual students' work
1. Introductory exercises, introduction to reading.
2. Practice setting up two different parts.
3. Analysis of errors by setting of the workpiece.
4. Clamping of workpieces in jigs.
5. Principles of jig design.
6. Entering the program for independent work - design of specific jig for worpiece machining.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction