Đồ án tốt nghiệp - Constructing a three-axis machine tool with a PLC

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION

FACULTY OF INTERNATIONAL EDUCATION

-  -

GRADUATION PROJECT
CONSTRUCTING A THREE-AXIS MACHINE
TOOL WITH A PLC
SUPERVISOR:

LE HOANG LAM

STUDENT’S NAME:

NGUYEN QUANG THUAN

20142269

NGUYEN QUANG HUY

19142072

MAJOR: ELECTRICAL AND ELECTRONICS ENGINEERING

THE SOCIALIST REPUBLIC OF VIETNAM

Independence – Freedom– Happiness

Ho Chi Minh City, January , 2025

Graduation project tasks
Students full name 1: Nguyen Quang Thuan

ID:20142269

Students full name 2: Nguyen Quang Huy

ID:19142072

Major: Electrical and electronics engineering
Training system: Regular university

I. PROJECT TITLE :
Constructing a three-axis machine tool with a PLC

II. TASKS ARE ASSIGNED :
1. Initial figures:
- The maximum tap size the machine can handle: M4.
- The drilling material is aluminum.

2. Implementation content:
-

Calculate the tapping speed.

-

Connect the AutoCAD drawings with the Mitsubishi Q-series PLC.

-

Explore communication standards such as CC-LINK and RS232.

-

Research the absolute positioning system.

-

Study how to control an AC Servo motor operating in absolute position control
mode.

-

Write a ladder logic program to control the Mitsubishi Q-series PLC.

-

Design a monitoring and control interface using the HMI SoftGot 2000.
Construct the model and perform the electrical wiring.

-

Conduct multiple test runs, record results, and provide observations,
evaluations, and conclusions about the model.

i

III. DATE OF ASSIGNING TASK: 08/2024
IV. DATE OF COMPLETING TASK: 05/01/2025
V. FULL NAME OF SUPERVISOR: MSc. LE HOANG LAM

CHAIR OF THE PROGRAM
(Sign with full name)

SUPERVISOR
(Sign with full name)

ii

THE SOCIALIST REPUBLIC OF VIETNAM

Independence – Freedom– Happiness

Ho Chi Minh City, January , 2025

Graduation project implementaton schedule
Students full name 1: Nguyen Quang Thuan

ID:20142269

Students full name 2: Nguyen Quang Huy

ID:19142072

Major: Electrical and electronics engineering
Training system: Regular university
Project title:Constructing a three-axis machine tool with a PLC

Week/day

Teacher

Content

confirmation

Overview of the topic (Problem statement,
objectives of the topic, research content, scope of
26/08/2024

the topic, and evaluation tools). Research on

(2 weeks)

design software such as AutoCAD and related
control

software

like

GX

Works2,

GT

SoftGOT2000, etc.
09/09/2024

Research on CC-Link Communication for PLC


...

...
mm.

-

CC-Link offers a fast data transfer rate and can be expanded to connect
multiple devices through the CC-Link module in the future.

-

The tapping system uses AC servo motors and brushless DC motors, ensuring
quiet operation and low noise levels.

-

The HMI display is designed to be simple and user-friendly, facilitating easy
system operation. Most errors are displayed and alerted on the HMI screen.

 Disadvantages:
-

The exact coordinates of the borehole must be located before starting the
tapping process.

-

Tapped holes may have uneven or rough internal details after tapping.

-

The project has only performed tapping on thin and medium flat workpieces,
and the actual control screen is unavailable, with operations limited to a
computer interface.

-

The system loses its coordinate position when the power supply is suddenly
interrupted.

6.2. Development directions:
Research and Address the Existing Limitations.
-

Get a backup PIN that the driver can memorize the location in order to avoid
unforeseen power outages.

-

Design an external physical Emergency stop button to help us proactively stop
the system when there is a problem.

-

Design and integrate an automatic tool-change mechanism to enhance
efficiency and minimize downtime.

-

Use high-quality taps with special coatings for better cutting performance and
longer lifespan.
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-

Develop an automated alignment system using sensors to accurately position
the boreholes.

-

Upgrade the HMI Interface: Add advanced diagnostic features to the HMI
interface for easier fault detection and resolution.

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REFERENCES
[1] Mitsubishi Electric, Mitsubishi Programmable Logic Controller Training Manual.
QD75 Positioning course Q-series.
[2] Mitsubishi Electric, Programable Logic Controller User’s Manual. (Melsec System Q)
[3] Mitsubishi Electric, MELSEC Q QD75MH Positioning Module - Users Manual.
(Details)
[4] Mitsubishi Electric (2014), MR-J3-A Servo Amplifier Instruction Manual.
[5] Mitsubishi Electric, Mitsubishi Programmable Controller Training Manual Q series
basic course. (for GX Works2)
[6] Mitsubishi Electric, Mitsubishi Programmable Logic Controller Melsec – Q
[7] Oriental Motor (2011), BLE Series CC-Link Installation/Connection OPERATING
MANUAL.
[8] Mitsubishi Electric, QJ61BT11 Control &amp Communication Link System Master
/Local Module.
[9] Mitsubishi Electric (2012), Mitsubishi Programmable Controller Training Manual Qseries basic course (for GX Works2).

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