| Subject name (in Hungarian, in English) | Mechatronic design of CNC system | |||
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Mechatronic design of CNC system
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| Neptun code | BMEGEGTBM61 | |||
| Type | study unit with contact hours | |||
| Course types and number of hours (weekly / semester) | course type: | lecture (theory) | exercise | laboratory excercise |
| number of hours (weekly): | 2 | 2 | 2 | |
| nature (connected / stand-alone): | - | coupled | coupled | |
| Type of assessments (quality evaluation) | exam | |||
| ECTS | 6 | |||
| Subject coordinator | name: | Németh István | ||
| post: | associate professor | |||
| contact: | nemeth.istvan@gpk.bme.hu | |||
| Host organization | Department of Manufacturing Science and Engineering | |||
| https://manuf.bme.hu/ | ||||
| Course homepage | https://manuf.bme.hu/?page_id=517 | |||
| Course language | hungarian | |||
| Primary curriculum type | mandatory | |||
| Direct prerequisites | Strong prerequisite | BMEGEGTBM01 | ||
| Weak prerequisite | ||||
| Parallel prerequisite | ||||
| Milestone prerequisite | at least obtained 0 ECTS | |||
| Excluding condition | none | |||
Aim
The aim of teaching the course is to acquaint students with the structural elements, mechanical design, drive systems, sensor systems and control elements of modern CNC machine tools. Students will become familiar with the design of typical servomechanisms used in machine tools and the basics of selecting their structural units. The course introduces students to the basics of NC programming for machine tools. Students can deepen their acquired, acquired theoretical knowledge through design and laboratory exercises.
Learning outcomes
Competences that can be acquired by completing the course
Knowledge
He knows the motion system of machine tools, serial and parallel kinematics, variations of the construction of components on top of each other. He is aware of the structural elements of machine tools, the types of spindles, and their main characteristics. Informed about the components of machine tools (sliding, rolling and hydrostatic lines; linear drives: ball spindle, linear motor, gear rack; rotary drives: worm gear, gear, torque motor; encoders, etc.). He is familiar with CNC lathes, turning centers, turning cells, their structural and technological characteristics, as well as automated tool and workpiece supply solutions. He is familiar with CNC drilling and milling machining centers, milling cells, their structural and technological features, and automated tool and workpiece supply solutions. He informed about the principle of CNC integration, about the electric drives of machine tools (basics of motors, servo control circuits). He possesses geometric and kinematic modeling of machine tools. You are aware of the different types of axis motion interpolation (straight, circle, spline). Knows the basics of NC program structured text processing. He is aware of the role of PLC control in CNC controllers. He owns the NC programming of CNC lathes and the turning cycles. It owns NC programming and milling cycles for CNC milling machines and machining centers.
Ability
It is able to take into account the kinematic and structural structure of machine tools, static and dynamic properties and the peculiarities of control in an integrated way during machine selection. Analyzes the structural elements of machine tools (foundations, moving slides, spindles). Selects the components of the servo drives (eg servomotor, ball screw, roller line, bearings, couplings). It identifies CNC lathes, turning centers, turning cells, their structural and technological characteristics, and automated tool and workpiece supply solutions. It identifies CNC drilling and milling machining centers, milling cells, their structural and technological features, and automated tool and workpiece supply solutions. He interprets the principle of CNC integration, what he has learned about the electric drives of machine tools. Creates a geometric and kinematic model of machine tools. Apply different types of interpolation motion description (straight line, circle, spline). Able to interpret NC programs and program simpler manufacturing tasks. Identifies PLC control tasks in CNC controllers. Solves the tasks of NC programming of CNC lathes. Solves the tasks of NC programming for CNC milling machines and machining centers.
Attitude
It is open to collaboration with the instructor and fellow students as the knowledge expands. It expands your professional knowledge by constantly acquiring knowledge. Open to the use of information technology tools. It seeks to learn about and routinely use the system of tools needed to solve problems. It strives for an accurate and error-free solution.
Independence and responsibility
She independently thinks through tasks and problems and solves them based on specific resources. Accepts well-founded professional and other critical remarks. In some situations, as part of a team, you work with your fellow students to solve tasks. With his knowledge, he makes a responsible, informed decision based on his analyzes. He feels responsible for the design and operation of CNC equipment.
Teaching methodology
The teaching of the subject consists of lecture, practice and laboratory practice. The lectures basically introduce students to the information defined by the knowledge competence elements using the technique of frontal education. The slide shows used in the lectures can be downloaded from the online interface of the subject. The practical sessions in connection with the lectures help to apply the knowledge and acquire it at the skill level. The topics of the laboratory exercises are also related to the lectures, during which the students apply the acquired knowledge in practice.
Support materials
Textbook
Lecture notes
Online material
http://manuf.bme.hu/?page_id=517
Validity of the course description
| Start of validity: | 2023. September 1. |
| End of validity: | 2028. July 15. |
General rules
The assessment of learning outcomes consists of two mid-year partial performance assessments and a year-end exam. The two partial performance assessments consist of two homework assignments made individually by the students. The exam asks for the knowledge of the lectures. The exam consists of two parts: a compulsory written part and an optional oral part. To obtain a signature and to be eligible for the exam, you must complete the two submitted design assignments, each corresponding to a performance of at least 40%, and complete all laboratory exercises.
Assessment methods
Detailed description of mid-term assessments
| Mid-term assessment No. 1 | ||
| Type: | formative assessment, simple | |
| Number: | 1 | |
| Purpose, description: | A complex way of evaluating the knowledge, ability, attitude, as well as autonomy and responsibility type competence elements of the subject, the form of which is an individually designed design homework; the design task is the mechanical design of a servo drive. With the planning task you can get a minimum of 6 points and a maximum of 15 points, but it is also possible to get extra points. At least 40% completion of the task is required to obtain a signature. The result of the task is included in the result of the exam. The detailed content of the assignment, the requirements, the deadline for submission, and the method of assessment - which will be announced in the first lesson of the semester - are determined jointly by the person in charge of the subject and the instructors of the subject. | |
| Mid-term assessment No. 2 | ||
| Type: | formative assessment, simple | |
| Number: | 1 | |
| Purpose, description: | A complex way of evaluating the knowledge, ability, attitude, as well as autonomy and responsibility type competence elements of the subject, the form of which is an individually designed design homework; the design task is the production planning of a given workpiece and the preparation of its NC program. With the planning task you can get a minimum of 6 points and a maximum of 15 points, but it is also possible to get extra points. At least 40% completion of the task is required to obtain a signature. The result of the task is included in the result of the exam. The detailed content of the assignment, the requirements, the deadline for submission, and the method of assessment - which will be announced in the first lesson of the semester - are determined jointly by the person in charge of the subject and the instructors of the subject. | |
Detailed description of assessments performed during the examination period
Elements of the exam:
| Written partial exam | ||
| Obligation: | mandatory (partial) exam unit, failing the unit results in fail (1) exam result | |
| Description: | The written part of the exam is mandatory. The written exam measures the level of learning of students determined by knowledge and ability type competencies. The written exam focuses in part on theoretical knowledge and in part on the application skills acquired during the exercises and laboratory exercises. A maximum of 70 points can be obtained in the written exam, and the exam results of students who perform below 40% (28 points) are insufficient. Examiners score 40% or more based on the written dissertation and the design assignments. To determine the recommended exam mark, a minimum of 2x6 = 12 points and a maximum of 2x15 = 30 points can be obtained from the two planning assignments (but it is also possible to earn extra points during the semester) and a minimum of 28 points and a maximum of 70 points can be obtained in the written exam. | |
| Oral partial exam | ||
| Obligation: | (partial) exam unit chosen by the student, the exam result assessed by other partial exam unit can be changed unrestrictedly | |
| Description: | The oral part of the exam is not obligatory, the student can take an oral exam after obtaining the offered grade in the hope of getting a better result. The oral examination may cover both theoretical knowledge and the application skills acquired during the exercises or laboratory exercises. The oral exam can be not only corrective but also degrading. The student is given preparation time for the questions received in the oral exam, during which he / she can also take notes. | |
| Practical partial exam | ||
| Obligation: | does not apply | |
| Description: | ||
| Inclusion of mid-term results | ||
| Obligation: | mandatory (partial) exam unit, but failing the unit does not results in fail (1) exam result | |
| Description: | The exam grade includes the mid-year performance evaluation, ie the result of the two planning tasks. To determine the grade offered after the written exam, a minimum of 2x6 = 12 points and a maximum of 30 points can be obtained from the design assignments, to which is added the score obtained in the written exam (provided that the written exam was successful). As extra points can be earned with the design tasks, their value also increases the score that can be obtained in the exam. | |
The weight of mid-term assessments in signing or in final grading
| ID | Proportion |
|---|---|
| Mid-term assessment No. 1 | 100 % |
| Mid-term assessment No. 2 | 100 % |
The condition for signing is that the score obtained in the mid-year assessments is at least 40%.
The weight of partial exams in grade
| Type: | Proportion |
|---|---|
| Written partial exam | 70 % |
| Oral partial exam | 70 % |
| Inclusion of mid-term results | 30 % |
Determination of the grade
| Grade | ECTS | The grade expressed in percents |
|---|---|---|
| very good (5) | Excellent [A] | above 91 % |
| very good (5) | Very Good [B] | 86 % - 91 % |
| good (4) | Good [C] | 71 % - 86 % |
| satisfactory (3) | Satisfactory [D] | 56 % - 71 % |
| sufficient (2) | Pass [E] | 40 % - 56 % |
| insufficient (1) | Fail [F] | below 40 % |
The lower limit specified for each grade already belongs to that grade.
Attendance and participation requirements
Must be present at at least 70% (rounded down) of lectures.
At least 85% the exercises (rounded down) must be actively attended.
At least 100% of laboratory practices (rounded down) must be actively attended.
Special rules for improving, retaken and replacement
The special rules for improving, retaken and replacement shall be interpreted and applied in conjunction with the general rules of the CoS (TVSZ).
| Can the submitted and accepted partial performance assessments be resubmitted until the end of the replacement period in order to achieve better results? | ||
| yes | ||
| Taking into account the previous result in case of improvement, retaken-improvement: | ||
| new result overrides previous result | ||
| The way of retaking or improving a partial assessment for the first time: | ||
| partial assesment(s) in this group can be improved or repeated once up to the end of the repeat period | ||
| Completion of unfinished laboratory exercises: | ||
| missed laboratory practices must be performed in the repeat period | ||
| Repetition of laboratory exercises that performed incorrectly (eg.: mistake in documentation) | ||
| incorrectly performed laboratory practice (e.g. Incomplete/incorrect report) can be corrected upon improved re-submission | ||
Study work required to complete the course
| Activity | hours / semester |
|---|---|
| participation in contact classes | 84 |
| mid-term preparation for practices | 14 |
| preparation for laboratory practices | 14 |
| elaboration of a partial assessment task | 8 |
| exam preparation | 42 |
| additional time required to complete the subject | 18 |
| altogether | 180 |
Validity of subject requirements
| Start of validity: | 2023. September 1. |
| End of validity: | 2028. July 15. |
Primary course
The primary (main) course of the subject in which it is advertised and to which the competencies are related:
Mechatronics engineering
Link to the purpose and (special) compensations of the Regulation KKK
This course aims to improve the following competencies defined in the Regulation KKK:
Knowledge
- Student has the knowledge and application in context of the scientific and technical theories and causal relationships relevant to the profession of mechatronics engineer.
Ability
- Student has the ability to design complex mechatronic systems globally, based on a systems- and process-oriented, theoretically sound way of thinking.
Attitude
- Based on student's acquired knowledge, Student plays an integrative role in the integrated application of engineering disciplines (in particular mechanical, electrical and computer engineering) and in the technical support of all disciplines where engineering applications and solutions are required by professionals in the field.
Independence and responsibility
- Student takes an independent and proactive approach to solving professional problems.
Prerequisites for completing the course
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Knowledge type competencies
(a set of prior knowledge, the existence of which is not obligatory, but greatly facilitates the successful completion of the subject) |
none |
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Ability type competencies
(a set of prior abilities and skills, the existence of which is not obligatory, but greatly contributes to the successful completion of the subject) |
none |