design of hand vice of drilling machine

hand vice used to hold small piece

1. LIST OF FIGURES
Figure 1. Bench vice.....................................................................................................................................2
Figure 2. Pin vice..........................................................................................................................................3
Figure 3. Pipe vice........................................................................................................................................3
Figure 4. v-block with v clamp.....................................................................................................................4
Figure 5. Leg vice.........................................................................................................................................4
Figure 6. Hand vice......................................................................................................................................6
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2. LIST OF TABLES
Table 1: requesting of materials
Table 2: Parts of hand vice
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3. Table of Contents
ABSTRACT...................................................................................................................................................iv
CHAP I. GENERAL INTRODUCTION...............................................................................................................1
CHAP II. VICE................................................................................................................................................2
II.1. INTRODUCTION.................................................................................................................................2
II.2. TYPES OF VICE...................................................................................................................................2
II.3. FUNCTION OF VICE...........................................................................................................................4
CHAP III. HAND VICE....................................................................................................................................5
III.1. Introduction.....................................................................................................................................5
III.2. Basic parts of a hand vice.....................................................................................................................5
III.2. Function of hand vice.......................................................................................................................6
III.3. Application of hand vice..................................................................................................................6
CHAP IV. MANUFACTURING PROCESS.........................................................................................................7
IV.1. EXPLANATION AND DEFINITION......................................................................................................7
IV.2. Manufacturing of the parts of hand vice.........................................................................................9
IV.5. RESULTS AND DISCUSSION............................................................................................................12
IV.5.1. Result (Testing and inspections).........................................................................................13
IV.5.2. Error in fabrication process.................................................................................13
IV.6. MAINTENANCE OF HAND VICE......................................................................................................13
CHAP V. CONCLUSION AND RECOMMANDETION......................................................................................14
V.1. CONCLUSION..................................................................................................................................14
V.2. RECOMMENDETION.......................................................................................................................14
V.3 REFERENCE......................................................................................................................................15
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4. ABSTRACT
A vice has a pair of parallel, work-piece clamping jaw-members, which jaw-members are spaced
laterally apart. The first jaw-member is a fixed one, while the second jaw-member is completely
movable as an integral unit, and also allows for the two jaw-elements thereof of which it is
comprised to be movable toward and away from each, whereby the second jaw-member may be
used separately to hold a workpiece, and may be used in conjunction with the first jaw-member
for assisting the first jaw-member in firmly and safely clamping a workpiece in order to provide
a more stable holding of the workpiece during the working. Therefore, the second movable jaw
member may be adjusted for holding the smaller-diameter portion of a long workpiece, while the
fixed jaw member holds and clamps the larger diameter portion of the same work piece. The
second workpiece may be used alone for holding and clamping workpieces that are more
difficult to grip, and also may be used for holding a tool, while the first, fixed jaw member
clamps a workpiece associated with the tool being clamped by the movable jaw member.
This invention relates to vises, and more particularly has reference to an improved bench vise of
the double jaw type.
Heretofore various forms of bench clamps have been devised for special purposes, but so far as I
am aware, none have been of general application and embodied the improved features of the
present invention. In previous designs of bench clamps, certain forms of special clamp jaw
arrangements were provided, but none of the bench type having double jaws for firmly clamping
a work piece at four points in the particular manner of this invention are in common and well
known use.
It is the object of the present invention to provide an improved bench vise of general application
having improved means for firmly clamping or gripping a work piece. Another object is to
provide an improved bench vise of the double jaw type wherein two sets of clamping jaws are
disposed in rectangular related relation on a common base. Still another object is to provide an
improved bench vise of the double jaw type having embodied therein improved jaw supporting
means wherein an article may be extended through an opening in the supporting means and
clamped at a point intermediate its ends in an improved manner. Yet another object of this
invention is to provide an improved vise sup-port having improved clamping means so arranged
that a work piece of elongated form may be arranged in a vertical position in the vise jaws and
clamped therein at any point between its ends, the improved vise having a novel arrange ment of
clamping jaws whereby the work piece is firmly held in position at four points. These and other
objects and advantages of the invention will, however, hereinafter more fully appear in the
following description and as more particularly pointed out in the appended claims.
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Design of hand vice of drilling machine

5. CHAP I. GENERAL INTRODUCTION
Today’s vises range in configuration from relatively simple single-station models to very
elaborate multiple-station designs. Most vises consist of base or body that is secured to the
machine table, a fixed jaw against which part material to be machined is located, a movable jaw
and screw mechanism.
When tightened, the movable jaw is pushed or drawn forward by the screw mechanism thus
clamping the work piece against the fixed jaw.
Vises are simple, relatively fast and easy to operate. Their advancements were greatly
accelerated in the 1960s with the coming of CNC machines when the demand for higher
precision parts and greater productivity gave birth to a patented precision machine vise. Early
vise designs, when under pressure, deflected so that part alignment was a constant problem.
To address the work holding needs of a particular machining operation, one needs to consider
part size, material, machine speed, feed rate and the quantity of parts to be produced. Process
planning requires dividing the machining process into steps best suited to the available
machines. Smaller machine shops are more likely to plan their work holding around knee mills.
By the process of making the vice it must help the operator to hold the work piece in order to
carry out their process.
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Design of hand vice of drilling machine

6. CHAP II. VICE
II.1. INTRODUCTION
Definition: A vice is a mechanical apparatus used to clamp an object securely in order for
construction to be completed on it.
II.2. TYPES OF VICE
Following are the various types of vice used for different purposes.
1. Bench vice
It is firmly fixed to the bench with the help of nut and bolt. It consists of a cast iron body and
cast iron jaws. Two jaw plates are fitted on both the jaws. The holding surface of the jaw plates
is knuckled in order to increase the dripping. Jaw plates are made up of carbon steel and wear
resistant.
One jaw is fixed to the body and the second slides on a square threaded screw with the help of a
handle.
The jaws are opened up to required length jab is placed in the two jaws and is fully tightened
with the help of handle. Handle is used to move the movable jaw.
Figure 1. Bench vice
2. Pin vice
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Design of hand vice of drilling machine

7. It is used to hold wire or small diameter rods. It consists of a self-centered three jaw chuck made
up of a tool steel.
Figure 2. Pin vice
3. Pipe vice
It is used to hold pipes, shaft or round jobs. It works on the same principle as the bench vice. It
consists of a vertical screw with square to move the movable jaw, which is fixed on the lower
end of the screw. It grips the work out four points.
Figure 3. Pipe vice
4. v-block with v clamp
In v-block, v grooves are provided to hold the round objects longitudinally, the screw of the
clamp applies the holding pressure. When the handle is rotated there is movement in the screw.
The two end (i.e. face and peen) must be hardened and tampered and the center of the head with
the eye is lift soft.
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Design of hand vice of drilling machine

8. Figure 4. v-block with v clamp
5. Hand vice
Hand vice is vice which is portable and is used to hold small pieces of metal while they are being
drilled. It has jaws used to hold the piece, some are fixed jaw other are movable jaw that are
screwed mechanically.
6. leg vice
The blacksmith leg vise or "solid box vise" is one of the most important tools in the blacksmiths
shop. It firmly holds hot iron while it is hammered, chiseled or twisted. These are the only vise
that is designed to take this kind of use day in and day out.
Figure 5. Leg vice
II.3. FUNCTION OF VICE
It is used to clamp or hold the work piece that are getting: grinding, drilling, cutting…
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Design of hand vice of drilling machine

9. CHAP III. HAND VICE
III.1. Introduction
A hand vice is similar in appearance to a pair of tongs, and has a simple design which consists of
two connected handles, each with an integrated jaw on the end. It is called a hand vice because it
is designed to be used in the hand.
A hand vice is probably the most versatile of all the hand-held vice types, as its tong-like
structure means it can be used to hold minute workpieces as well as slightly larger ones.
Another use for a hand vice would be to hold small objects in need of grinding or sanding.
Grinding is a dangerous machining process which uses a grinding wheel as a cutting
tool. Similarly, sanding involves removing any small abrasions using a wheel on which
sandpaper is mounted.
III.2. Basic parts of a hand vice
Jaws (fixed and movable)
Handle
Screw
Base
Pin
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Design of hand vice of drilling machine

10. Figure 6. Hand vice
III.2. Function of hand vice
Used to hold small objects tight while grinding, drilling, filing, hammering, sanding, shaping,
etc. Jaws have vertical and horizontal V grooves for holding round objects. Use a hand vise and
save your fingers. Hand vise has a handle attached to a set of jaws which can clamp down on
various items.
III.3. Application of hand vice
It is applicable for held a work while making these operations:
Cutting
Drilling
Grinding
Joining
Sanding
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Design of hand vice of drilling machine

11. CHAP IV. MANUFACTURING PROCESS
IV.1. EXPLANATION AND DEFINITION
In manufacturing process, we follow many processes in order to manufacture the hand vice.
Some of the processes are:
1. Measuring is the process of getting the length, width, diameter, etc… In order to manufacture
the object.
2. Cutting is the process of separating unwanted materials from wanted materials. In this
process we use different materials to carry out this process.
3. Plain milling also called surface milling and slab milling, is milling flat surfaces with the
milling cutter axis parallel to the surface being milled. Generally, plain milling is accomplished
with the workpiece surface mounted to the milling machine table and the milling cutter mounted
on a standard milling machine arbor.
4. End milling process is the machining surfaces which is perpendicular to the axis of the cutter
and in this operation the use cutter called end milling cutter.
5. Machining: is the process of cold working the metal into different shapes by using different
types of machine tools. In this process is mainly used to bring the metals objects produced by
means of different fabrication techniques to final dimensions.

6. End facing is the machining of the face of the fall of the work piece to make It also called
squaring the work piece is held in the chuck and is rotated. The falling tool in the tool post is fed
perpendicular to the axis of rotation.
7. Parallel turning is an operation of removing excess amount of material from the surface of
cylindrical work piece. This operation is done to reduce the diameter of the workpiece, in this
process the tool is perpendicular to the axis of the work piece.
8. Chamfering is the operation of beveling or turning a taper at the end of the work piece.
It is the process of removing burrs after the operations such as knurling, turning and thread
cutting. Here the workplace is rotated and the chamfering tool is fed perpendicular to the axis of
rotation.
9. Knurling is an operation which is done to give good gripping surface on the work piece. It
can also be used to increase the diameter slightly.
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Design of hand vice of drilling machine

12. 10 Threading is the operation of producing a helical groove of specific shape, say v or square
on a cylindrical surface. This operation is done on lathe machine by using a single point cutting
tool.
11 Drilling is the operation by which a hole is produced in the work piece. For drilling, the work
piece is held in a chuck and is rotated. The drill bit which is the tool for drilling is held in the
tailstock. When the drill bit is fed into the rotating work piece, the drill removes the material and
performs the drill.
12. Tapping is the operation of cutting internal thread by means of a cutting tool called tap.
Tapping in drilling machine may be performed by hand or by power, when the tap is screwed
into the hole, it removes metal and cut internal thread which will fits into external thread of the
same size.
REQUESTING OF MATERIALS
N
o
ITEM NAME QUANTITY UNITYCost/unity in
FRW
TOTAL in FRW
1 Flat bar 30 * 70*200 3 Kg 5,000 15,000
2 Mild steel rod Æ 35 1 Kg 5,000 5,000
3 Saw blade 2 1,000 2,000
4 Paint ½ Kg 2,000 1,000
SUB TOTAL 23,500
Man power 25 % of S/ total 6,500
TOTAL MAX 30,000
Table 1: requesting of materials
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Design of hand vice of drilling machine

13. IV.2. Manufacturing of the parts of hand vice
Table 2: Parts of hand vice
Base: is a part of hand vice which made in mild steel type. In manufacturing of base part, we
perform many operations and we need the many materials and tools that are shown below:
Operation:
·Measuring operation
·Cutting operation
·Plain milling operation
·End milling operation
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Design of hand vice of drilling machine
Parts List
Items Quantity Part Name Description
A 1 Base Mild steel
B 1 Movable Jaw Mild steel
C 2 Fixed Jaw Mild steel
D 1 Handle Mild steel
E 2 Pin Mild steel
F 1 Screw Mild Steel

14. ·Drilling operation ·Tapping operation
 Materials/tools:
·Steel ruler
·Mild steel workpiece
·Hacksaw
·Scriber
·Plain milling cutter
·End milling cutter (two
fluted end mill)
·Milling machine
·Arbor
·Vernier caliper
·Cutting fluid
·Drill tool
·Tap and die
Jaws: is the parts of hand vice which is used to hold or clamp the workpiece in order to perform
your operation. Our hand vice has two types of jaws that are fixed and movable jaws.
Fixed jaw is a jaw which is stationary (it is in rest position)
Movable jaw is which is moving and attack the fixed jaw in order to hold the workpiece.
We manufacture the jaws in different operations and using different materials/tools that are
illustrated below:
Operations:
·Measuring operation
·Cutting operation
·Plain milling operation
·Filing operation
·Drilling operation
·Knurling operation
Materials used to make jaws are as follow:
·Steel ruler
·Scriber
·Mild steel workpiece
·Hacksaw
·Plain milling cutter
·Milling machine
·Cutting fluid
·Vernier caliper
·Arbor
·File
·Bench vice
·Two fluted end mill
cutter
·Drilling tool
·Drilling machine
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Design of hand vice of drilling machine

15. Pin: is the part of hand vice which helps the movable jaw to slide and connect the movable and
fixed together in order to perform their function. We have some operation and materials needed
in manufacture it that are:
Operations:
·Measuring operation
·Cutting operation
·End facing operation
·Parallel turning operation
Material/tools:
·Steel ruler
·Hacksaw
·Mild steel workpiece
·Scriber
·Lathe machine
·Cutting tool (single edge
cutting tool)
·Cutting fluid
·Vernier caliper
Screw: is part of the hand vice that are threaded, which act as connecting rod. It connects the
jaws and handle in order to perform the function of it. They are some processes and
materials/tools that are used:
Operations:
·Measuring operation
·Cutting operation
·End facing operation
·Parallel turning operation
·Parting operation
·Drilling operation
·Threading operation
Materials:
·Hacksaw
·Steel ruler
·Mild steel workpiece
·Scraber
·Lathe machine
·Cutting tool (single edge
cutting tool)
·Cutting fluid
·Vernier caliper
·Turning tool
·Parting tool
·Drilling tool
·Threading tool
·Thread gauge
Handle: is the parts of hand vice that are knurled and is used to move the movable jaws in
forward or backward direction in the purpose of holding the workpiece. Operation and materials
used to manufacture it are as follow:
Operations:
·Measuring operation
·Cutting operation
·End facing operation
·Parallel turning operation
·Drilling operation
·Threading operation
·Parting operation
·Knurling operation
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Design of hand vice of drilling machine

16. Materials/tools:
·Hacksaw
·Steel ruler
·Workpiece
·Scraber
·Lathe machine
·Cutting tool (single edge
cutting tool)
·Cutting fluid
·Vernier caliper
·Drilling tool
·Drill chuck
·Threading tool
·Pitch gauge
·Parting tool
·Knurling tool
ASSEMBLING PRODUCT
IV.5. RESULTS AND DISCUSSION
As result, we get the hand vice that are able to use it on drilling machine. And it works correctly.
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Design of hand vice of drilling machine

17. IV.5.1. Result (Testing and inspections)
After manufacturing the hand vice, we test it by using it to hold a workpiece and it holds up
carefully without losing your precision
In inspection, we must have oiled it and give it their maintenance on the daily life or monthly.
IV.5.2. Error in fabrication process
The error in fabrication are as follows:
Poor maintenance of machine using to manufacture the hand vice
Unavailable materials needed to manufacture hand vice
Short period of time in operation of producing hand vice
IV.6. MAINTENANCE OF HAND VICE
1. Vices should be kept clean and free from dust and metal chips using a brush,
2. The vice should never be used as an anvil,
3. It should be occasionally oiled,
4. The serrated jaws should be covered with soft metal clamps when finished work is held.
5. Don’t use hammer to move the handle.
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Design of hand vice of drilling machine

18. CHAP V. CONCLUSION AND RECOMMANDETION
V.1. CONCLUSION
The topic for our project is "the design of hand vice of drilling machine". Our group have two
members and we all have equal participation in this project. With this co-ordination we can
complete our work as perfect as possible. When we do this project we got an idea, how can we
do a project. We think that, this design of hand vice of drilling machine project experience will
help in our job when we complete the studies and will help in our daily life activities according
to our carrier.
V.2. RECOMMENDETION
In recommendation, we recommend that all technician must be able to do this project
·We are also inviting any person who wants to develop this project to tell us about that
innovation and join us.
·We recommend the school to purchase materials needed in the period of teaching the
student
As general recommendation, we recommend the workforce development authority in Rwanda
to enforce the technical secondary school and give the apparatus to the schools in order to
facilitate the student to learn the technical courses and in order to increase large number of
technician in countries.
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Design of hand vice of drilling machine

19. V.3 REFERENCE
1.Wikipedia
2.Work shop instructors
3.Work shop practice
4.Google
5.Class note
6.Class mate idea
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Design of hand vice of drilling machine