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TITLE PAGE

 

BY

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--/H2013/01430
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SCHOOL OF ---
INSTITUTE OF ---

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APPROVAL PAGE

This is to certify that the research work ''design and construction of hydraulic vise'' by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

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DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.

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ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
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A bench vise is a tool used to hold or clamp a workpiece to allow operations such as cutting, filing, milling, drilling, grinding, etc. It isusually made from cast iron with a fixed jaw and another parallel jaw which moves towards or away from the fixed jaw using the screw. Design and fabrication of a modified vise to improve the productivity, flexibility andcomfortability of the existing bench vises have been achieved in this study. In this vice, we can also hold components of different shapes with the help of the adjustable jaws that can be provided if needed. A lever slides the movable jaw, using a lead screw for forward and reverse movement of the movable jaw. Hydraulic machine vice can be used for all types of machines.  

TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
1.0      INTRODUCTION

• BACKGROUND OF THE PROJECT
• PROBLEM STATEMENT
• AIM AND OBJECTIVE OF THE PROJECT
• DVANTAGESANDDISADVANTAGES OF THE PROJECT
• APPLICATION OF THE PROJECT
• DEFINITION OF TERMS

CHAPTER TWO
LITERATURE REVIEW

• HYDRAULIC MACHINES
• HISTORICAL BACKGROUND OF HYDRAULIC MACHINES
• COMPONENTS OF HYDRAULIC MACHINES
• MACHINE VICE
• PARTS OF A MACHINE VICE
• REVIEW OF RELATED STUDIES

CHAPTER THREE

• MATERIALSANDCOMPONENTS USED
• Materialsrequired
• Components Used

CHAPTER FOUR

• MACHINE DESIGN
• WORKINGPRINCIPLE
• MACHINE LINEDIAGRAM
• SAFETYPRECAUTIONS
• SAFETY|OPERATORSAFETY

CHAPTER FIVE

• CONCLUSION
• REFERENCES

 

CHAPTER ONE
1.0                                                            INTRODUCTION
1.1                                             BACKGROUND OF THE PROJECT
Fluidpoweristhetechnologythatdealswiththegeneration,controlandtransmissionofpowerusingpressurizedfluids.Fluidpower systemsaregenerallygroupedundertwobroadclassifications.Thesearehydraulics and pneumatics Hydraulicsystems uses liquidssuchaspetroleumoil,water, syntheticoiletc.
Pneumatic system uses air or other gases, Liquids providea very rigid medium for transporting power and thus canprovide large forces to move loads with almost accuracy andprecision.Onotherhandpneumaticsystemsarelessexpensivetobuildandoperate.Fluidpowerequipmentranges in size from huge hydraulic presses to small fluidcomponentsused to buildreliablecontrolsystems.
A machine vice is like an extra hand. Its purpose is to hold material steady, allowing you to use both hands to work on the material with other tools.The machine vice is of the screw base bench design. It is a heavyweight, portable vice. It is attached to a table or bench with the mounting screw holes. It has rough jaws for holding material with stationary base. Screw base machine vices are considered most appropriate to hold light materials or in areas where a heavier vice is not available such as laboratories and school workshops.
It consists of a mounting base or body which is secured to the machine table, a stationary jaw against which work piece is located, a movable jaw and screw mechanism consisting of a buttress-threaded spindle and handle. When the spindle is rotated in the clockwise direction using the handle, the jaws move closer thus clamping the workpiece against the stationary jaw. This clamping action holds the part securely while the machining operation takes place. On the other hand, when turned in the anticlockwise direction, the jaws move away thus loosening the grip on the work piece
The stiffness created through the design that pulled the jaw down has the added benefit of pulling the nut and driving the movable jaw up creating a sandwich of vice body, nut and movable jaw. The resulting stiffness and dampening allowed a significantly lighter vice to be offered, allowing for manual lifting and positioning of the vice on a machine table, which contributed to its popularity.  The stationary jaw is cast integral with the vice body. It is a good selection when density and absolute minimum deflection is needed.This vice hardware is adaptable for installation in a variety of positions, and on different styles of bench tops.They are ideal for sawing, sanding, plaining,drilling, screwing and soldering.
Hydraulic viceis capable of holding small and minutework pieces with a large force thus enabling accurate and precise operation. The project combines the advantages ofhydraulics, thus eliminating the drawbacks that may be associated with the use of fluid power Also the hydraulic pressurepackamplifiers the force with which the vice grips the work piece. The highlights of this hydraulic vice are that it isveryeconomical,accurate,and easytooperate and haswide varietyofapplications.
1.2                                     PROBLEM STATEMENT
During machining, holding the component firmly is always a crucial task. Workpiece never has the same size, shape and material. It requires different forces and different sizes of clamping jaws. In an ordinary vice, the human power requirement is more to tighten the heavy jobs, but in the machine vice, the hydraulic arrangement is used to tighten the job automatically. In this paper, reduction of human effort and enhancing safety play a vital role while designing and fabricating the machine vice, which is used to hold the components during heavy machining works. In normal machine vice, the human labor involved in operating the handle to grip the component tightly is more. Excess amount of human effort generally results in damage to the workpiece. This may be avoided using hydraulic machine vice, in which the workpiece cannot be damaged while clamping the job, as only adequate amount of pressure is exerted to tighten the job.
1.3   AIM AND OBJECTIVES OF THE PROJECT
The main aim of the study is to fabricate a low cost hydraulic vise using available local material.
Themainobjectivesare:-

• Toreduce man power
• Toincreasetheefficiencyofthe plant
• Toreducethe workload
• Toreducethe productioncost
• Toreducetheproductiontime
• Toreducethe material handling
• Toreducethefatigueofworkers
• Toachievegoodproduct quality
• Lessmaintenance

1.4                         DVANTAGESANDDISADVANTAGES OF THE PROJECT

Advantages:-

• Reduces the working time in holding the workpieces.
• Accuracyinholdingwhencomparedtoordinarytoordinaryvices.
• Lesseffortrequired.
• Increasestheproductivity.

Disadvantages:-

• Inhydraulicsystemleakages willbethere.
• Dirtypremises.
• Expanseofcomponentsinhydraulicsystem

1.5     APPLICATION OF THE PROJECT
Hydraulic vises are versatile tools and are found in any shop, garage or maintenancedepartment.Theyprovidehands-freeoperationinbothhorizontalandverticalpositionstoperformclamping,pressingorwork-holdingapplications.Forexample:
U-joint removal
Form steel
Woodworking
Sawing Cutting
steel/metalDrilling & boring
Cuttingconduit
Fabrication
Assembly
Auto maintenance
Regripping golf clubs
Rebuilding regulators
Home projects
Planning
1.6                                      DEFINITION OF TERMS
Bench Vise:A bench vise is like an extra hand and is a common tool found in any shop or garage. It is attached toaworkbenchanditspurposeistoholdmaterialsteady,allowingyoutousebothhandstoworkonthematerialwithothertools. Theyareidealforsawing,sanding,planing,drilling,screwing,solderingandmore.
Conventional Bench Vise: A conventional bench vise is manually operated. The user has to crank down on a lever to operate it.This is a high risk for injury and/or strained muscles. It also cannot provide dependable power, controlorstability.Thisisevenmoreevidentwhenadditionalhelpisnecessaryforset-upandoperation.

HydraulicBench:Ahydraulicbenchviseprovidespowerandperformancewiththeefficiencyofhydraulicpower.Theuseroperatesthevisebyuse ofahydraulicfootpump.Itisuserandhandicapfriendlyandeliminatesphysicallimitationsandriskfactors.

CHAPTER FIVE
5.1                                                              CONCLUSION
A Hydraulic vise is one of the most versatile tools in the fitting and assembly workshops which firmly support and hold the workpiece toperformvaryingoperationslike;drilling,striking,filing,etc.
The main advantage of thehydraulic vice is that itreduceshumaneffort,workingtime.Theexpansewecontribute for making this can be got from the production.Becausethisdevicereducestheproductiontime,sothatproductionperdayincreases,becauseofthatprofitincreases. This hydraulic bench is a very useful and helpfuldevicefortheworkshopandindustries.Thesmooth andaccurate holding of work piece increases the quality of workbyusingthisdevice.

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CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of ''design and construction of hydraulic vise'' is also available. Order full work to download. Chapter two of ''design and construction of hydraulic vise'' consists of the literature review. In this chapter all the related work on ''design and construction of hydraulic vise'' was reviewed.

CHAPTER THREE: The complete chapter three of ''design and construction of hydraulic vise'' is available. Order full work to download. Chapter three of ''design and construction of hydraulic vise'' detector consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

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