EXCERPT FROM OVERVIEW OF OCCUPATIONAL STANDARD
CNC MACHINE OPERATOR
OCCUPATIONAL STANDARD
Name of occupational group
Mechanical engineering and metal processing
Name of occupation
CNC machine operator
Level
III
Part one
1. Description of the occupation
A CNC machine operator works in the metal processing, wood, chemical, food, ship-building, car industry and other industrial branches. A CNC machine operator usually works directly in the production, on the manufacture of products, and uses measuring equipment and tools (movable measuring metre, depth gauge, micrometre, comparator,
templates and other measuring devices).
He/she prepares, monitors, supervises the work process of a machine, controls the quality of products and maintains the CNC machine. He/she introduces data, either manually or through some other data carrier, and implements occupational safety/fire protection and environmental protection measures.
In order to perform the above duties, a CNC machine operator should possess general psychical and physical abilities, hand and finger dexterity, good eyesight, hearing and have a good grasp of spatial relations.
A sense of responsibility, accuracy and preciseness is extremely important for the above profession.
2.2 Groups of duties, key duties and activities
Group of duties
Key duties
Activities
Analysis, planning and organisation of work
Organisation of one’s work
- Analysis of technical and technological documents for new products in cooperation with the staff in charge of technical preparation
Preparation of the workplace
Preparation of the workplace and takeover of tools and materials
Preparation of machines, devices and equipment
- Takeover of the work order
- Check of energy supply
- Takeover of raw materials, semi-finished products and tools
- Visual check of the machinery
- Cleaning of the machinery
- Check and lubrication of the cooling system
- Check of adequacy and functioning of tools
Operational duties
Review of technical and technological documents
Activation of the machinery
Preparation of the processing process
Implementation of the processing process
- Review of the work order
- Review of technical drawings
- Selection of prescribed tools
- Review of clamping of work pieces
- Review of the order of technological process operations
- Review of the programme sheet
- Activation of the machinery
- Activation of aggregates
- Annulment of previous orders/re-setting
- Positioning all aggregates in initial positions
- Takeover and entry of the product manufacture programme
- Positioning/clamping and calibration of tools
- Clamping of work pieces/adjusting of initial position of work pieces
- Adjusting of necessary work regimes
- Check of geometric characteristics of work pieces
- Check of good working order of the support and main movement
- Process simulation
- Initiation of processing
- Switching on/off transport and handling devices
- Switching on/off devices for removal of cutting chips and dust
- Switching on/off cooling and lubrication devices
- Monitoring and correction of control measurements
- Storage of final products
- Switching on/off all devices and aggregates
Administrative duties
Filling out necessary documents
Monitoring and keeping of prescribed documents
- Filling out the work order
- Filling out delivery/shipping notes
- Identification of errors in technological documents
- Keeping record of the number of work pieces
- Keeping record of the time of manufacture
- Monitoring and keeping record of periodical maintenance dates
- Keeping record of tool use periods
- Keeping record of breakdowns and stoppages
Communication and cooperation with others
Establishing good communication with company departments
Establishing good communication with work colleagues
- Development of business cooperation with superiors, co-workers and assistant staff
- Participation in the resolution of problems regarding the implementation of work tasks
- Participation in the team for preparation of work tasks
- Provision of occasional information on workplace changes to colleagues
Quality assurance
Entry control assurance
Technological process quality assurance
Product quality assurance
- Visual control of materials/semi-products
- Measuring of dimensions of raw materials
- Visual control of good working order/functioning of tools
- Monitoring of working conditions that can impact the quality of products
- Following the prescribed order of operations
- Control measurements by production phases
- Check prescribed measures
- Check processing quality
- Correct product processing measures and quality
- Control of work piece/product measures
- Control product functionality
- Check the completeness of support documents
Health and environmental protection
Application of occupational safety and fire prevention measures
Application of environmental protection measures
- Use of occupational safety measures and assets
- Implementation of fire prevention measures
- Supervision of good working order of energy plants and lines (containers under pressure, electricity lines, gas and oil installations)
- Implementation of waste material disposal measures
- Implementation of environmental protection measures in compliance with applicable regulations
3. Desired attitude
A CNC machine operator effectively uses working hours, assumes responsibility for his/her work, has a positive attitude towards the importance of good technical and functional working order of equipment and work instruments, is a team player, is willing to take initiative and adapts well to new situations.
He/she has a positive attitude towards the application of occupational safety measures, fire prevention measures, importance of conservation and protection of environment, as well as professional and ethical norms and values.
He/she is willing to develop an entrepreneurial spirit and civic competences.
He/she is willing to engage in life-long learning, application and acquisition of new knowledge, learn new languages and apply modern technologies, especially when it comes to following the development of IT technologies (special-purpose software and hardware) and CNC machinery.
4. Working environment and working conditions
A CNC machine operator works in plant maintenance and production of machine parts and devices at machine processing companies. Persons with such a profession independently perform duties and tasks that involve handling typical and numerically managed tool machinery in the production and manufacture of machine parts. A CNC machine operator mostly works in closed space. He/she spends working hours in artificially lighted space.
His/her working environment may contain an increased level of radiation, waste material particles in the air, concentrations of hazardous fumes and noise. The working position of his/her body is a standing position. It is necessary to apply prescribed occupational safety measures and assets. The health condition of a CNC machine operator is checked from time to time.
5. Connection to other occupations
The profession CNC machine operator is closely related to the following professions (they have common – generic professional competences): metal cutter, carpenter, mechanical engineering technician, mechanical engineering technician for computer-assisted design, mechatronics technician, CNC machine programmer, final wood processing technician (for CNC machines).
The profession CNC machine operator is related to professions that are linked to the following jobs: managers, engineers of various profiles, technicians of various profiles, all professions using CNC technologies in their work, assistant staff and maintenance staff.
Part two
IDENTIFICATION OF PROFESSIONAL COMPETENCES (knowledge, skills and attitudes)
In order to successfully perform duties/tasks/activities described in part one, a person has to possess knowledge, skills and personal competences (attitudes):
Knowledge – a person has to know how to:
Skills – a person has to be able to:
Personal competences:
Organisation of his/her own work
- identify elements of technical and technological documents
- define technical drawing rules
- distinguish material characteristics
- identify elements of technical and technological documents
- apply rules and principles of technical drawing
- recognise types of materials
- effectively use working hours
- assume responsibility for his/her work
- use resources rationally
- have a positive attitude towards the importance of good technical and functional working order of equipment and work assets
- demonstrate grasp of harmony and proportion
- demonstrate willingness to be a team player and cooperate
- demonstrate willingness to take initiative and adapt well to new situations
- have a positive attitude towards the application of occupational safety and fire prevention measures
- have a positive attitude towards the importance of nature conservation and environmental protection
- demonstrate willingness to engage in life-long learning, acquire new knowledge and apply modern technologies
- demonstrate willingness to develop entrepreneurial skills and civic competences
Preparation of the work place and takeover of tools and materials
- explain the term and manner of preparation of the work place
- define material characteristics
- define tool characteristics
- recognise good functional working order of a machine
- apply rules/procedures of preparation and maintenance of work space, tools and materials
- select an adequate manner of cleaning the work place
- select necessary materials
- select necessary tools
- conduct a visual check of energy lines
- conduct a visual check of the state of machinery
Preparation of machines, devices and equipment
- describe the procedure of machinery preparation and cleaning
- describe elements of energy and work lines of a machine
- explain basic characteristics and application of tools, equipment, measuring
- instruments and protection equipment
- select accurate machine cleaning procedures
- make an overview of the cooling and lubrication system
- prepare a cooling and lubrication mixture
- select necessary tools
- replace cutting elements of tools
Switching on the machine
- describe the procedure to switch on the machine and aggregate
- describe the procedure of re-setting orders
- define initial positions of the aggregate
- switch on the machine and aggregate
- reset orders
- position the aggregate in the initial position
Review of technical and technological documents
- define work order elements
- define technical drawing rules
- state basic tool characteristics
- identify the manner of clamping work pieces
- recognise the order of technological process operations
- define programme sheet elements
- define CNC programming elements
- review the content of the work order
- apply technical drawing rules
- select prescribed tools
- monitor the prescribed manner of clamping work pieces
- comply with the described order of technological process operations
- examine programme sheet elements
- apply CNC programming rules
Processing preparation
- describe the principles of computer use in production processes (CAD/CAM)
- define elements of clamping and adjusting of tools
- define the manner of clamping work pieces and determining their initial
position - identify necessary work regimes
- define geometric characteristic of work pieces
- identify devices for the main and secondary movement
- define the simulation
process
- enter new or use existing programmes
- apply clamping, calibration and adjustment of tools and work pieces
and their adaptation - apply or correct the processing regime
- handle devices for the main and secondary movement
- simulate the entered programme
Processing implementation
- define machine processing procedures
- explain transport and handling devices
- define devices for the removal of cutting chips and dust
- describe the working principle of the cooling and lubrication device
- define processing regimes
- define the types and function of the sensor
- describe tolerances regarding form and position
- select the correct product disposal procedure
- describe the procedure for turning off the device and aggregate
- check the good working order of the device for the disposal of cutting chips and dust
- apply the cooling and lubrication procedure- set processing regime parameters
- check the good working order of sensors
- conduct control measurements
- check the accuracy of prescribed measures
- accurately store finished products
- apply prescribed procedures for switching the device and aggregate off and on
Filling out necessary documents
- describe the procedure for filling out the work order
identify the elements of the work and technical and technological documents - recognise errors in the technical and technological documents
- identify elements of the working order
- apply prescribed data entry techniques for work documents
- identify errors in technological documents
Monitoring and keeping prescribed documents
- define the number of work pieces and time needed for their manufacture
- describe the periodical maintenance procedure
- keep record of the time needed for the manufacture
- keep record of tool use periods
- keep record of breakdowns and stoppages
- keep record of the number of work pieces and time needed for their
manufacture in prescribed documents - conduct a check in compliance with the maintenance plan
- state the dates and periodical maintenance measures
- give an overview of the manufacturing time and tool use periods
- give an overview of breakdowns
and stoppages
Establishing good communication with company departments
- describe communication methods with company departments
- identify problem solution methods related to work tasks
- apply accurate communication principles in compliance with the
organisational structure - select problem solving methods related to work tasks
Establishing good communication with work colleagues
- describe team work elements
- define the importance of timely information provided
to colleagues
- establish an adequate relationship with the superiors and colleagues
- use technical terminology
Entry control assurance
- describe the accuracy of materials/semi-products
- define dimensions and characteristics of raw materials
- briefly describe the good working order of tools
- recognise the types and quality of entry materials
- give an overview of dimensions of raw materials
- apply entry control rules and procedures
- apply measuring techniques
- check accuracy and good working order of tools
Technological process quality assurance
- define working conditions
- define the order of technological procedure operations
- briefly describe control measurement procedures
- describe the working principle of measuring instruments
- describe the manner of correcting measures
- define processing quality
- compare actual and prescribed working conditions
- apply prescribed technological procedure processes and rules
- apply control measurement procedures
- conduct processing quality checks
- modify processing parameters in compliance with the result of control
measurements
Product quality assurance
- define measuring units and measuring procedures
- identify the accuracy of units and functionality of products
- define the content of supporting and technological product documents
- apply measuring procedures
- identify finished product mistakes
- establish the completeness of supporting work and technological documents
Application of occupational safety and fire prevention measures
- define occupational safety measures and assets
- describe the importance of fire prevention measures
- identify energy plants, work and energy lines
- check the accuracy of occupational safety assets
- apply occupational safety measures
- check fire prevention assets
- apply fire prevention measures
- check good working order of energy and work lines
Application of environmental protection measures
- briefly describe waste material disposal measures and methods
- define environmental protection measures in compliance with applicable
regulations
- apply waste material disposal measures
- apply environmental protection measures
