Design And Fabrication Of Shaft Spindle Using Catia V5

ABSTRACT

The growth of manufacturing industries largely depends on rate of production with better quality. To reach these requirements it is essential to develop a modern tools. In modern machine tool applications the performance of a machine tool is judged by its strength. The machine tool spindle has a profound impact on the overall machine performance. The work presented here provides machine tool – shaft spindle which aimed at developing a shaft spindles that are sufficiently stiff to meet their need. The shaft spindle is designed in cylinder block of cast iron material. After designing the shaft spindle 3D model was created by using the CATIA software.

TABLE OF CONTENTS

 TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWELDGEMENT

ABSTRACT

TABLE OF CONTENT

CHAPTER ONE

• INTRODUCTION
• BACKGROUND OF THE PROJECT
• AIM/OBJECTIVES OF THE PROJECT
• ADVANTAGES OF THE SHAFT SPINDLE
• DISADVANTAGES OF SHAFT SPINDLE
• APPLICATIONS OF THE PROJECT
• ADVANTAGES OF THE STUDY
• SIGNIFICANCE OF THE PROJECT
• SCOPE OF THE PROJECT

CHAPTER TWO

LITERATURE REVIEW

2.0      LITERATURE REVIEW

2.1      GENERAL DESCRIPTION OF A SHAFT

2.2      TYPES OF SHAFTS

2.3      REVIEW OF LITERATURES

CHAPTER THREE

3.0      MATERIAL AND METHOD

3.1      MATERIALS USED FOR SHAFT SPINDLE

3.2      PROJECT METHODOLOGY

CHAPTER FOUR

4.1      DESIGN OF SPINDLE SHAFT

4.2      SPINDLE 3D MODELING

4.3      PROPERTIES OF SPINDLE MATERIAL

4.4      STRESSES IN SHAFT

4.5         FABRICATING OF SHAFTS

CHAPTER FIVE

CONCLUSION AND RECOMMENDATION

• CONCLUSIONS
• RECOMMENDATION

CHAPTER ONE

1.0                                                        INTRODUCTION

1.1                                          BACKGROUND OF THE STUDY

In machine tools, a spindle is a rotating axis of the machine, which often has a shaft at its heart. The shaft itself is called a spindle, but also, in shop-floor practice, the word often is used metonymically to refer to the entire rotary unit, including not only the shaft itself, but its bearings and anything attached to it (chuck, etc.) (Hoffman et al., 2011).

A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe. The main spindle is usually the biggest one. References to “the spindle” without further qualification imply the main spindle. Some machine tools that specialize in high-volume mass production have a group of 4, 6, or even more main spindles. These are called multispindle machines (Hoffman et al., 2011).

A mechanical shaft is a rotating member, usually of a circular cross-section, either solid or hollow, which transmits power and rotational motion.

A mechanical shaft is a mechanical power transmission element, usually circular in cross-section, either solid or hollow, which transmits torque and rotational motion from one device to another.

Machine elements such as gears, pulleys, flywheels, clutches, and sprockets are mounted on various shaft types and are used to transmit power from the driving device, such as a motor or engine.

Shaft spindles are the rotating part of machine; it holds the tool or workspace. They are short shaft which is used in machines. Example: Spindle in lathe machine. This work focuses on the fabrication of a shaft spindle using catia v5 software.

1.2                                   AIM AND OBJECTIVES OF THE STUDY

The main aim of the study is to fabricate a shaft spindle using catia v5. The objectives of the project are:

1. To fabricate a simple and easy to use shaft spindle using involves using catia v5
2. To reduce the learning curve of shaft spindle usingcatia v5

iii.        To provide a simple means of designing a shaft spindle.

1.3                        ADVANTAGES OF THE SHAFT SPINDLE

1. They are less likely to jam.
2. They need less maintenance
3. They have high torsional strength.
4. They have high value of polar moment of inertia.
5. They are very strong and less likely to be failure.
6. Internal shape of a hollow shaft is hollow therefore they require less material.

1.4                                                     DISADVANTAGES OF SHAFT SPINDLE

1. Due to loose coupling they have power loss.
2. They generate a constant noise.

• Manufacturing and maintenance costs are high.

1. Difficult in manufacturing.
2. If failure takes place in shafts then it takes huge time in repairing.

1.5                             APPLICATIONS OF THE PROJECT

• Small and medium load transmission for four wheels.
• It is very useful in machine shop.
• Industrial Application.

1.6                                         SIGNIFICANCE OF THE PROJECT

This study will serve a means of assessing students competency in creativity. During the course of study, the student is put on a sound theoretical foundation of various mechanical engineering subjects and of course, to a satisfactory extent. Opportunities are made available to him to work on different kinds of machines, so that he is exposed to various kinds of manufacturing process.

This study shall serve as a means of making student to become technologically stronger.  The student involve shall attain a stage of perfection, when he himself is able to design and fabricate a device.

1.7                                                SCOPE OF THE PROJECT

A spindle is a rotating shaft with a fixture for holding a tool (in the case of a milling, grinding, or drilling spindle) or a workpiece (in the case of a turning spindle). The shaft spindle serves as a support, a positioner, and a rotary drive for the tool or workpiece. The scope of this work covers fabricating this device using catia V5 software.

This report discusses the necessity of the project and various aspects of planning, design, selection of materials, fabrication and testing.

CHAPTER FIVE

5.1                                CONCLUSION AND RECOMMENDATION

5.1     CONCLUSION

In current research work, design and fabrication of shaft spindle was carried out which is used for drilling hole of Ф14.25 mm with 178 mm depth. After designing, 3D model of shaft spindle was created in CATIA V5R20 software and finite element analysis was carried out using solid works software in static condition. The obtained value of von Mises stress is 9.2516 × 10⁶ N/m² which is less than yield tensile strength of the spindle material. Also, maximum displacement in the shaft spindle is less than theoretical value of maximum permissible displacement. Hence, design is safe.