project jig & fixture utm

UNIVERSITI TEKNOLOGI MALAYSIA

FAKULTY OF MECHANICAL ENGINEERING

SMR-4723 - 01

TOOLING FOR PRODUCTION

PROJECT 1 (JIG AND FIXTURE DESIGN)

LECTURER: PM. ZAINAL ABIDIN AHMAD

GROUP MEMBERS:

1. KIONG KHEE HUI AM090074

2. LEONG THYE JIEN AM090082

i

TABLE OF CONTENTS

Chapter Title Page

TABLE OF CONTENTS

LIST OF FIGURES

LIST OF TABLES

i

iii

iv

1 INTRODUCTION

1.1 Project Title

1

1

2 TOOL DESIGN

2.1 Introduction to Tool Design

2.2 Design Process

2

2

3

3 JIG AND FIXTURE

3.1 Introduction to Jig and Fixture

3.2 Jig

3.3 Fixture

6

6

7

8

4 MACHINING

4.1 Introduction to Machining

4.2 Drilling

4.3 Milling

4.3.1 Horizontal Milling Machine

4.3.2 Vertical Milling Machine

10

10

10

11

12

12

5 SUPPORT, LOCATOR AND BUSHING

5.1 Types of Support

5.1.1 Solid Support

5.1.2 Adjustable Support

14

14

14

15

ii

5.2 Types of Locator

5.2.1 Pin-Type

5.2.2 Diamond or Relieved Locator

5.2.3 Vee Locator

5.3 Types of Bushing

5.3.1 Press-Fit Bushing

15

15

16

17

17

17

6 MODULAR FIXTURE AND CLAMP

6.1 Modular Fixture

6.2 Type of Modular Fixturing Systems

6.2.1 Subplate System

6.2.2 "T"-Slot System

6.2.3 Dowel-Pin System

6.3 Clamp

6.3.1 Strap Clamp

19

19

21

21

22

23

25

25

7 OPERATIONS

7.1 Operation Description

7.2 Tool

7.3 Production Plan

7.4 Part Drawing

7.5 Drilling Operation

7.6 Milling Operation 1


26

26

28

28

30

32

39

43

8 CONCLUSION

48

REFERENCES

49

APPENDICES 50

iii

LIST OF FIGURES

FIGURE NO. TITLE PAGE

1.1

2.1

3.1

3.2

4.1

4.2

4.3

5.1

5.2

5.3

5.4

5.5

5.6

5.7

6.1

6.2

6.3

6.4

6.5

6.6

Part

Tool design process

Box jig

Angle plate fixture

Drilling machine

Horizontal milling machine

Vertical milling machine

Rest button

Adjustable support

Pin-type locator

Diamond locator

Schematic diagram of the method of using diamond locator

Vee locator

Different types of press-fit bushing

Modular fixture

Subplate system

"T"-slot system

Dowel-pin system

Special-purpose locating screw

Strap clamp

1

3

7

8

11

12

13

14

15

16

16

16

17

18

20

22

23

24

24

25

iv

LIST OF TABLES

TABLE NO. TITLE PAGE

7.1

7.2

Types of cutting tools chosen

Production Plan

28

28

1

CHAPTER 1

INTRODUCTION

1.1 Project Title

The component in figure 1.1 shown needs to be drilled all holes and machined on the

surface marked. Design a suitable jig or jigs and a fixture or fixtures. Make a process plan in

the form of a table. Decide the processing sequence and type of machining processes. Use

modular fixture design approach for machining the surface marked.

Figure 1.1: Part

2

CHAPTER 2

TOOL DESIGN

2.1 Introduction to Tool Design

Tool design is one of the four processes in product-planning process, together with

product design, manufacturing, and marketing. Tool design is the process of designing and

developing the tools, methods, and techniques necessary to improve manufacturing efficiency

and productivity. Tool design provides industry the machines and unique tooling necessary

for today’s high-speed, high-volume production. Since there is not a single tool or process

that can serve all forms of manufacturing, thus tool design is an ever-changing, growing

process of creative problem solving.

The main objective of tool design is to reduce overall manufacturing cost while

maintaining the quality of products and increase production rate. In order to accomplish this,

a tool designer must satisfy the following objectives:

i. Provide protection in design of tools for maximum safety of operators

ii. Design the tool to make it foolproof and prevent improper usage.

iii. Select the materials that will give adequate tool life.

iv. Provide simple, easy-to-operate tools for maximum efficiency.

v. Reduce manufacturing expenses by producing parts at the lowest possible cost.

vi. Design tools that consistently produce parts of high quality.

vii. Increase the rate of production with existing machine tools.

3

2.2 Design Process

Tool design is essentially an exercise in problem solving. The five-step process is

illustrated in the flow chart below:

Figure 2.1: Tool design process

1. Defining requirements

Defining requirements or statement of problem is the first step of tool design process.

A designer must first identify all the requirements or specifications in the problems to be

solved. The requirements must be stated broad but clear enough to define the scope of the

design project.

4

2. Gathering and Analyzing Information

All of the data will be collected and assembled for evaluation. When collecting the

information, ensure that the part documents and records such as part print, process sheets, and

machine specifications are current or the latest. Note-taking is essential part of this step

because it allows the designer to record or collect the important information which is

important for future references. Note-taking also prevent the lost of good ideas or thoughts.

Four categories have to be taken into considerations:

i. Workpiece Consideration

Usually the most important factors

Have the largest influence on the work-holder's final design

Considerations include:

Part size and shape

Required accuracy

Part material properties

Locating and clamping surfaces

Number of pieces

ii. Manufacturing Operations Consideration

Considerations include:

Type of operations required

Number of operation performed

Sequence of operations

Inspection requirements

Time restrictions

iii. Equipment Consideration

Controls the type of equipment needed for machining, assembly, and inspection

operations

Determines whether the work-holder is designed for single or multiple parts

Typically, equipment criteria include factors such as:

Types and sizes of machine tools

Inspection equipment

Scheduling

5

Cutting tools

General plant facilities

iv. Personnel Consideration

Deal with the end user or operator

The first and most important consideration in this phase is safety. Therefore, all

tools must be designed with complete safety to protect to operator

Operator fatigue, efficiency, economy of motion, and operation speed should be

considered too

Designer must understand well the general aspects of design safety and all

appropriate government and company safety rules and codes

3. Developing Several Options

Creativity is most needed in this step since a workpiece can be located and clamped in

different ways. Brainstorming is an important strategy for successful tool design. Several

good tooling alternatives should be brainstormed. Besides, more options should be added

during this phase to ensure that they are feasible.

4. Choosing the Best Options

This step is a cost or benefit analysis of different tooling options such as tooling

durability, operator comfort and safety, and etc.

5. Implementing the Design

This phase consists of turning the chose design approach into reality. Final details will

be decided, detailed drawings will be made, and the tooling will be built and tested.

6

CHAPTER 3

JIG AND FIXTURE

3.1 Introduction to Jig and Fixture

In manufacturing duplicate parts accurately, jigs and fixtures are used to hold

workpiece during the processes. Jigs and fixtures are designed and built to hold, support, and

locate every part to ensure that each is drilled or machined within the specified limits. A jig is

a special device that holds, supports, or is placed on a part to be machined while fixture is a

production tool that locates, holds, and supports the work securely so the required machining

operations can be performed. The design of jigs and fixtures are usually unique for particular

part or shape.

There are a few other components are used together with jigs and fixtures in order to

locate and position workpiece securely during machining operations to ensure precision and

accuracy, such as:

i. Supporting and locating elements

To position the workpiece accurately with respect to the tool guiding or setting

elements. Supporter is locators that positioned underneath a part while locators

are positioned by the edge of part

ii. Clamping and workholding elements

To hold and clamp the workpiece securely at a position and prevent movement

during machining operations

7

iii. Tool guiding and setting elements

To aid the setting or guiding of the tools in the correct position with respect to

the workpiece

3.2 Jig

Jig is usually used for drilling, boring, reaming, counterboring and other drilling

operations. Bushing is used to guide and align drilling operations. There are many types of

jigs such as template jigs, plate jigs, sandwich jigs, angle-plate jigs, box jigs and others

depending on the part shape and drilling operations required. Figure 3.1 shows the example

of box jig.

Figure 3.1: Box Jig

Requirements of a Good Jig:

i. Quick and accurate location of the workpiece.

ii. Easy loading and unloading of the workpiece and prevention of wrong loading.

8

iii. Prevention of bending or movement of the workpiece during drilling.

iv. Ample chip clearance with facilities for metal fillings removal and cleaning.

v. Light weight to minimize operator fatigue due to repeated handling.

vi. Prevention of loss of loose parts by chaining them to the jig body.

vii. Clearance for overshoot of the drill.

3.3 Fixture

Fixture on the other hand is generally used for milling operations. It is used together

with set blocks and feeler or thickness gauges as reference to cutter and workpiece. Due to

the larger tool forces, fixtures are generally built stronger, and heavier than jigs. Fixture can

also be classified into different categories such as plate fixtures, angle-plate fixtures, vise-jaw

fixtures, indexing fixtures and many more. Figure 3.2 shows the example of angle plate

fixture.

Figure 3.2: Angle plate fixture

9

Essentials of Fixture:

i. Strength to withstand heavy forces.

ii. Thrust should be directed towards a strong solid structure.

iii. Cutter setting piece should be provided.

iv. Milling fixtures should be aligned with locating tennons.

v. Rigid clamping.

vi. Motion economy through multiple/power clamping.

vii. Gates for chip removal.

10

CHAPTER 4

MACHINING

4.1 Introduction to Machining

Machining is a process that remove the material from a workpiece. This is a process

using power-driven tools, such as lathes, milling machines, and drill presses, and a sharp

cutting tool to cut the material mechanically to achieve the desired geometry. Metal cutting is

the term used when the material process is metallic. Material is very expensive for high

volume production. However, machining has very low set-up cost compared to forming,

moliding and casting processes. Machining is use when tight tolerances on dimensions and

finishes are required.

4.2 Drilling

Drilling process is one of the most common machining processes. Drilling process is

so common that is estimated that 75% of all metal-cutting material removed come from

drilling operations. Drilling is known as a creation of right circular cylinders by using a twist

drill. The chips of the material must exit through the flutes to the outside of the tool. Drilling

machine has different shapes and sizes. It has small hand-held power drills, bench mounted

and floor-mounted models. The drilling machine can perform many of operation other than

11

drilling process likes countersinking, counter boring, reaming, and tapping large or small

holes. Figure 4.1 shows the example of drilling machine.

Figure 4.1: Drilling machine

4.3 Milling

Milling process is explain as a process of cutting away material by feeding a

workpiece past a rotating multiple tooth cutter. This machining method is providing by the

cutting action of many teeth around the milling cutter. There are varieties of the machined

surface like flat, angular, or curved or any combination of shapes. A milling machine is a

machine tool used to machine solid materials. The milling machines are often classed in two

basic forms, horizontal and vertical which refers to the orientation of the main spindle.

12

4.3.1 Horizontal Milling Machine

This kind of machine is very robust and sturdy. They are variety of cutters available to

mill the material which is normally held in a strong machine vice. This kind of miller is used

when the vertical miller is less suitable. Horizontal milling machine normally used when a lot

of material has to be removed by the cutters or there is less of need for accuracy for the shape

material. Figure 4.2 shows the example of horizontal milling machine.

Figure 4.2: Horizontal milling machine

4.3.2 Vertical Milling Machine

This kind of milling machine produce machined surfaces by progressively removing

material from a work piece uses a rotating milling cutter. The vertical milling machine also

13

can function like a drill press because the spindle is perpendicular to the table and can be

lowered into the work piece. Figure 4.3 shows the example of vertical milling machine.

Figure 4.3: Vertical milling machine

14

CHAPTER 5

SUPPORT, LOCATOR AND BUSHING

5.1 Types of Support

5.1.1 Solid Support

Solid support is the easiest type of support to use on tool base. This type of support

can be machined or installed into the tool base. It is use when a machined surface acts as a

locating point. Figure 5.1 shows the rest button that can be used as supports, side locator pads,

and jig feet.

Figure 5.1: Rest button

15

5.1.2 Adjustable Support

Adjustable support is used when the surface is rough or uneven. Normally used with

one or more solid locator to allow any adjustment needed to level the work. Figure 5.2 shows

the examples of adjustable support.

Figure 5.2: Adjustable support

5.2 Types of Locator

5.2.1 Pin-Type

Pin-type locator is a precision locating pins with a tapered tip for easy part loading,

and a shoulder to resist downward forces (superior to standard dowel pins). Figure 5.3 shows

the example pin-type locator.

16

Figure 5.3: Pin-type locator

5.2.2 Diamond or Relieved Locator

Diamond pins and round pins are often used together to locate from two holes in a

workpiece, it reduce the time it takes to load and unload the tool. The diamond pin also acts

to restrict the movement of the part as shown in the figure 5.5 below. Figure 5.4 shows the

example of diamond locator.

Figure 5.4: Diamond locator

Figure 5.5: Schematic diagram of the method of using diamond locator

17

5.2.3 Vee Locator

Vee locator is mainly used for round work. It also can locate flat work with rounded

or angular ends and flat discs. The advantage of the vee locator is it have centralizing feature.

Figure 5.6 shows the examples of vee locator.

Figure 5.6: Vee locator (left: horizontal vee locator, right: vertical vee locator)

5.3 Types of Bushing

5.3.1 Press-Fit Bushing

There are 3 types of press-fit bushing which are head, headless and serrated. It is

permanently pressed into the jig plate, usually flush with the top surface. They are generally

used for single-operation drilling or reaming. Press-fit bushings can be mounted closer

together than headed bushings, but offer less resistance to heavy axial loads. Figure 5.7

shows the examples of different press-fit bushing.

18

Figure 5.7: Different types of press-fit bushing

19

CHAPTER 6

MODULAR FIXTURE AND CLAMP

6.1 Modular Fixture

The two major categories of workholding tool that have developed over the years are

general-purpose workholders and special-purpose workholders. Although these two forms of

fixtures cover almost every tooling requirement, but neither of it is economically suited for

every product. Thus, the third form of fixture called modular fixture is introduced to fill the

gap between general-purpose and special-purpose fixtures.

Modular fixturing is a workholding system that uses a series of reusable standard

components to build a wide variety of special-purpose workholding devices. It is designed to

be versatile and interchangeable to a number of different industrial applications. Modular

fixturing provide quick application changeover without sacrificing accuracy when holding a

work piece in place. Figure 6.1 shows the example of modular fixture.

20

Figure 6.1: Modular fixture

Unlike dedicated fixturing, a modular workholding system is comprised of many

interchangeable components that allow flexibility when designing custom fixtures from one

application to the next. The modular fixturing components can be assembled in different

combinations to build almost unlimited number of jigs and fixtures as desired. The modular

system can be used with other modular fixturing devices or independently with existing

tooling to immediately increase productivity while reducing setup times and fixture costs.

Modular fixturing components include items such as:

grid plates

tooling blocks

versatile clamps

adjustable stops

modular risers

spring loaded work supports

The process of building modular workholders is quite easy. Since the various

components are designed to work together, building a workholder is merely a process of

assembling necessary elements according to machining process and suitability. Once the

21

assembler has mastered basic assembly methods with simple jigs and fixtures, the assembler

can use his or her imagination and experience to build more detailed workholders. Therefore,

modular tooling systems can provide fixturing devices for just about any type of part.

6.2 Type of Modular Fixturing Systems

Modular-component workholding systems available can be categorized to three basic

types: subplate, "T"-slot, and dowel pin. There are some variations as well as slightly

different accessories made by different manufacturers within each of these categories. It is

normally depend upon the designer's requirements and machining operations that will be

performed in choosing specific type of modular-component workholding system.

6.2.1 Subplate System

Subplate system is the most elementary and basic type of modular fixturing system

which uses a series of flat grid plates, angle plates, multisided tooling blocks, and similar

components as major structural elements. These components can be used individually or

combined to assemble different workholders.

Although it is cheaper in price compare to "T"-slot and dowel-pin systems, it is less

versatile. However, by using master plate tooling method, this can be overcome. A tooling

plate acts as an adapter between workpiece and modular workholding elements. Rather than

being mounted directly to the modular elements, the workpiece is first attached to a dedicated

tooling plate, which is then mounted to the modular elements. The result is a combination of

modular and dedicated tooling elements, used together to fixture the workpiece. Figure 6.2

shows the example of subplate system.

22

Figure 6.2: Subplate system

6.2.2 "T"-Slot System

The "T"-slot systems uses a series of precisely machined base plates, mounting blocks

and other elements having machined and ground "T"-slots. These are used to mount and

attach the additional accessories. Regardless the shapes of the base plates or the types of

component, these "T"-slots are machined exactly perpendicular and parallel to each other.

The principal advantages of the "T"-slot system are its adaptability, strength and ease

of positioning the components. The "T"-slot permits more movement of the components on

the base plate and this ease the fixturing. Besides, it is also stronger than dowel pins.

The disadvantage of "T"-slot systems is in its repeatability from one tool to the next.

The repositioning of the elements in a "T"-slot system require precise measurement due to it

only have references point at the intersections of the "T"-slot systems. Figure 6.3 shows the

example of "T"-slot system.

23

Figure 6.3: "T"-slot system

6.2.3 Dowel-Pin System

Dowel-pin system is very similar in basic design with "T"-slot system, mainly the

overall size capabilities and range of components. The major difference is the grid pattern of

holes used to locate and mount the other accessories.

The major advantage of dowel-pin system is in the automatic positioning of the

components from one tool to the other. It is faster and easier to locate with dowel pins if a

tool must be built more than once.

The major problem with this type of system is in clamping. This is caused by the

spacing between the holes, the components, and arrangements made for clamping. The fixed

locating points in the base plates provided by the dowel pins, while desirable for repeatability,

do not permit movement of the components. In order to overcome this, the elements are used

with slots in individual components to achieve adjustability. Figure 6.4 shows the example of

Dowel-pin system.

24

Figure 6.4: Dowel-pin system

Dowel-pin systems are made with two different types of holes. One uses alternating

tapped holes separated with dowel-pin holes while the other combines both the locating

functions and mounting functions in the same hole by mounting a locating bushing on top of

a tapped hole. The first hole style permits both dowel pins and screws to be used to locate and

mount the components while the second requires a special-purpose locating screw which

capable in locating and holding the components. Figure 6.5 shows the example of special-

purpose locating screw.

Figure 6.5: Special-purpose locating screw

25

6.3 Clamp

The function of a clamp is to hold a part against the locators during the machining

cycle. To be effective and efficient, clamps must be planned into the tool design. Clamp

should always contact the work at its most rigid point. This prevents the clamping force from

bending or damaging the part. In modular fixture that used, strap clamp is chosen.

6.3.1 Strap Clamp

Strap clamp is the simplest clamp used for jigs and fixtures. In order to function this

clamp, first is to place it into position, then applied clamping force by fasten the clamp stud

until the workpiece is been firmly clamp. Figure 6.6 shows the example of strap clamp.

Figure 6.6: Strap clamp

26

CHAPTER 7

OPERATIONS

7.1 Operation Description

The part as shown from the figure 1.1 above is formed by casting. The part has to be

gone through drilling process by using CNC drilling machine. A total of 4 holes have to be

drilled to the part. For an easier loading method, box jig is selected to hold the workpiece for

drilling process. After all the drilling operations are done on the workpiece, the finishing

process on six selected surfaces of workpiece will be completed by using CNC milling

machine. In order to perform finishing milling process on all six surfaces, two milling

modular fixtures have been designed. Standard parts were chosen from Carrlane catalogue

and a few parts were customized to suit the processes. Both jigs and fixtures are designed to

hold workpiece and restrict any degree of freedom to achieve required surface specifications.

The following operations will be performed using the box jig and designed fixtures.

1. Drilling Operation using customized box jig:

i. Drilling of two Ø 0.3750 inches hole thru

ii. Drilling of Ø 0.7500 inches hole thru

iii. Drilling of Ø 1/4-20 UNF inches hole 5/8 deep

27

2. Milling Operation 1 using Fixture 1:

i. Milling of surface of two Ø 0.3750 inches holes

ii. Milling of surface of Ø 0.7500 inches hole

3. Milling Operation 2 using Fixture 2:

i. Milling of two surfaces 3.500 × 0.800 inches

ii. Milling of surface 2.500 × 0.800 inches

iii. Milling of surface 3.500 × 2.500 inches

Box Jig is used to perform the drilling operations. The box jig is designed with three

different bushings for the drilling of four holes (two holes with Ø 0.3750 inch, one hole with

Ø 0.7500 inch and one hole with Ø1/4-20 UNF 5/8 deep). Box jig is chosen because the part

can be completely machines on every surface without the need to reposition the part in the jig.

This can reduce the inaccuracy caused by the reposition of part.

Fixture 1 locates the part by using a round pin and a diamond pin. This reduces the

time it takes to load and unload the tool. The combination of round pin and diamond pin can

restrict eleven direction of movement of the workpiece. The last vertical degree of freedom is

restricted by using a strap clamp. A customized supporter is used to support the workpiece.

Fixture 2 utilizes the holes drilled in earlier process. A round pin and diamond pin is

used as in Fixture 1 to restrict eleven direction of movement of the workpiece. A customized

part with a pin welded is used to restrict the last vertical direction of movement. This is

because the length of diamond and round pin with this diameter is not suitable for the design.

Another customized supporter is used to support the workpiece.

28

7.2 Tool

The drilling cutting tool is selected from Mitutoyo catalogue. We choose three drill bit

from the catalogue which are shown in table 7.1 below. On the other hands, the milling

cutting tool is selected from ITS catalogue. We choose one of finishing end mills cutters from

the catalogue. Detail specification of all cutting tools are shown in table 7.1.

Table 7.1: Types of cutting tools chosen

Ø1/4' Drill Bit Ø3/8' Drill Bit Ø3/4' Drill Bit End Mill Cutter

Catalogue Mitutoyo Mitutoyo Mitutoyo ITS

Part No. 48516 24070 24310 S314DU

Diameter 0.2500' 0.3750' 0.7500' 20mm

No. of Flute 2 2 2 4

Total

Length

2-1/2' 3-1/8' 5' 110mm

Flute

Length

1-3/8' 1-13/16' 3-1/8' 45mm

7.3 Production Plan

Table 7.2 below shows a production plan for the operations.

PRODUCTION PLAN

P/N

1234-1

PART NAME

COMPONENT A

QUANTITY ORDER NO

DWG NO.

D-8975-1-1

PROCESS PLANNER

KIONG KHEE HUI

LEONG THYE JIEN

REVISION NO:

0

DATE:

14/11/2012

PAGE 1 OF 1

OPERATION DESCRIPTION

DEPT. MACH. TOOL

29

NO

1 DRILL 2 - Ǿ 3/8 INCH HOLES THRU *10

DRILLING

DRILL PRESS

*10-01

2 DRILL 1 - Ǿ 3/4 INCH HOLES THRU *10

DRILLING

DRILL PRESS

*10-02

3. DRILL 1 - Ǿ 1/4-20 UNF 5/8 DEEP *10

DRILLING

DRILL PRESS

*10-03

4. MILL FACE 2 - Ǿ 0.75 INCH TOP SURFACE *20

MILLING

HORIZONTAL MILL

*20-10

5. MILL END - Ǿ 1.5 + Ǿ 0.5 INCH RIGHT SURFACE *20

MILLING

HORIZONTAL MILL

*20-10

6.

MILL END 2 - 0.745×3.375 INCH *20

MILLING

HORIZONTAL MILL

*20-10

7.

MILL END - 0.745×2.500 INCH

*20

MILLING

HORIZONTAL MILL

*20-10

8. MILL FACE - 3.375×2.5 INCH *20

MILLING

HORIZONTAL MILL

*20-10

8.

HORIZONTAL MILL CUTTER

Ø 20mm

M. FIXTURE

F-A-02

7. HORIZONTAL MILL CUTTER Ø 20mm M. FIXTURE

F-A-02


F-A-02


F-A-01


F-A-01

3. DRILL BIT Ǿ 1/4' BOX JIG

J-A-01

2. DRILL BIT Ø 3/4' BOX JIG

J-A-01

1. DRILL BIT Ø 3/8' BOX JIG

J-A-01

OPERATION

NO

TOOL DESCRIPTION SIZE SPECIAL TOOL NO.

30

7.4 Part Drawing

32

7.5 Drilling Operation

39


43


48

CHAPTER 8

CONCLUSION

Throughout this project, we know that we should be able to design a simple and yet

effective tool that simplified the work of operator. A tool that is functioning well will lower

the cost while maintaining the quality of the product and also increasing the production rate.

Other than that, certain basic knowledge such as machine tool and cutter for different

operation should be familiarize so that we are prepare to put these knowledge into practice during

our future career.

We able to design one drilling operation and two milling operation that could function

properly. We have applied all the basic principles that we have learnt into this project. This helps

us to get a better understanding of designing jigs and fixtures.

49

REFERENCES

1. Edward G.Hoffman, Jig and Fixture Design, 2004, Delmar Cengage Learning

2. http://www.carrlane.com/Articles/StPartCL.cfm

3. http://www.manufacturinget.org/home/tech-4571-tool-design/introduction-to-tool-

design/

4. http://pdf.directindustry.com/pdf/arno/drill-system-shark-drill/17568-22485-_12.html

5. ITS_cutting_tools_catalogue

6. http://www.fastenal.com/web/search/product/cutting-tools-metalworking/holemaking-

and-drilling/screw-machine-

drills/_/Navigation?searchterm=&sortby=webrank&sortdir=descending&searchmode=&refin

e=~|categoryl1:%22601071%20Cutting%20Tools%209and%20Metalworking%22|~%20~|ca

tegoryl2:%22601075%20Holemaking%20and%20Drilling%22|~%20~|categoryl3:%2260234

7%20Screw%20Machine%20Drills%22|~

http://www.carrlane.com/Articles/StPartCL.cfm

http://www.manufacturinget.org/home/tech-4571-tool-design/introduction-to-tool-design/

http://www.manufacturinget.org/home/tech-4571-tool-design/introduction-to-tool-design/

50

APPENDICES

Standard Device Used in Drilling Operation

No. Device Standard Quantity

1. Rest button CL-7-RB 1

2. Rest button CL-14-RB 15

3. Thumb screw CLM-6-KHS 2

4. Veeblock CL-MF25-6002 1

5. Quarter turn screw CL-3-QTS 1

6. Press-fit bushing HC-32-12 1



1. Rest button: CL-7-RB

2. Rest button: CL-14-RB

51

3. Thumb screw: CLM-6-KHS

4. Veeblock: CL-MF25-6002

52

5. Quarter turn screw: CL-3-QTS

6. Press-fit bushing: HC-32-12



54

Fixture 1

Standard Device Used in Milling Operation 1

No Part Name Part Number Quantity

1 Rectangular Tooling Plate CL-MF25-0151 1

2 0.375 Round Pin CL-3-RP 1

3 0.375 Diamond Pin CL-3-DPX 1

4 Slotted-Heel Clamp Strap CL-6A-CS 1

5 Clamp Rest CL-4-CR 1

6 Clamp Spring CL-9-SPG 1

7 Flat Washer CL-2-FW 1

8 Stud CL-1/2-13 x 4.00 1

9 Hand Knob CL-40-HK-4 1

10 Spherical Washer CL-3-SW 2

11 Nut CL-8-JN 2

1. Rectangular Tooling Plate : CL-MF25-0151

55

2. 0.375 Round Pin : CL-3-RP

3. 0.375 Diamond Pin : CL-3-DPX

56

4. Slotted-Heel Clamp Strap : CL-6A-CS

5. Clamp Rest : CL-4-CR

57

6. Clamp Spring : CL-9-SPG

7. Flat Washer : CL-2-FW

58

8. Stud : CL-1/2-13 x 4.00

9. Hand Knob : CL-40-HK-4

59

10. Spherical Washer : CL-3-SW

11. Jam Nut : CL-8-JN

60

Fixture 2

Standard Device Used in Milling Operation 2

No Part Name Part Number Quantity

1 Rectangular Tooling Plate CL-MF25-0151 1

2 0.375 Round Pin CL-3-RP 1

3 0.375 Diamond Pin CL-3-DPX 1

4 Socket Head Cap Screw CL-1/2-13x2.00-SHCS 1

4. Socket Head Cap Screw : CL-1/2-13x2.00-SHCS

61

Drill Bit: Ø1/4'

Drill Bit: Ø3/8'

62

Drill Bit: Ø3/4'

Milling Cutter: Dc = 20 mm

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