Course detail
Tool Jigs and Fixtures for Machining
FSI-HUP Acad. year: 2024/2025 Summer semester
The course is focused on the fundamentals of designing of cutting tools, jigs and fixtures for machining. It describes individual projection systems for tool design, as well as procedures applied for designing of operational fixtures in compliance with the proposed technology. The students will acquaint with individual types of cutting materials and their use for designing of tools.
Language of instruction
Czech
Number of ECTS credits
4
Supervisor
Department
Entry knowledge
Basic knowledge of construction with CAD applications, producing of technical drawings, knowledge of technical materials and their heat treatment, secondary school mathematics, basic knowledge of machining technology and methods of machining. Generating of technological processes.
Rules for evaluation and completion of the course
Course-unit credit requirements:
Participation in the exercises.
Include delivery of two programmes: designing a dimensional tool and fixture for the given component with the use of CAD application.
The examination:
Consists of a written (test or written exam) and oral part.
The teacher may in justified cases set a special condition.
Participation in the exercises 100%, excused absence max. 10%. If the student exceeds the limit of absences, the director of the institute may permit individual compensatory assignments. Missed lessons may be in well-founded cases compensated in the given week with other groups.
Aims
The aim of the course is to familiarise students with the fundamentals of designing the basic cutting tools and fixtures for machining. They will learn and manage designing tools in basic projection systems with the use of computer technology. Designing of operational fixtures in compliance with the proposed technology. They will get acquainted with individual types of cutting materials and their use for designing of tools in the given machining technology.
The use of 2D/3D CAD programmes for designing of tools and fixtures for machining.
Study aids
Theses from the lectures. Script Tools and fixtures for machining. Commercial catalogs of tools and parts of fixtures.
The study programmes with the given course
Programme N-STG-P: Manufacturing Technology, Master's
specialization STG: Manufacturing Technology, compulsory-optional
Type of course unit
Lecture
39 hours, optionally
Syllabus
- Characteristics of cutting tools, economic efficiency of cutting tools, fundamentals of designing cutter bits.
- Coordinate system in designing cutting tools, projection planes, bit geometry, bit diagrams of a cutting tool.
- Materials used for manufacturing of cutting tools, treatment, economic efficiency of the use, grinding materials.
- Cutting tools used in individual machining technologies
- Fixtures in the engineering production, importance, classification, use, impact on the productivity and costs ; economic efficiency.
- Principles of designing fixtures for machining, used materials, requirements for individual elements of the fixtures.
- Setting of a worked component ; setting elements. Fastening of the component ; fastening elements. Basic conditions for setting and fastening of the component.
- Fixture for individual basic types of machining technologies. Basic calculation of fastening forces. Mechanisation of the fastening.
Laboratory exercise
39 hours, compulsory
Syllabus
– Designing of a dimensional cutting tool according to the individual assignment (drills, reamer drills, reamers, countersinks, milling cutters, taps, thread cutting dies, etc.)
The structural design according to the Czech standard ČSN, with the use of computer technology.
- Design and construction of a simple operational fixture for a component and machining technology according to the individual assignment. (Operational fixture – drilling, milling, lathe, etc.)
The structural design of a system of the given operational fixture with the use of computer technology.