Lathe Centering Tool

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Lathe Centering Tool

Preet Shah Ronak Shah

Department of Mechanical Engineering Department of Mechanical Engineering Gandhinagar Institute of Engineering and Technology Silveroak College of Engineering and technology Gandhinagar, India Ahmedabad, India

Abstract – As India trying to solve the problem of unemployment without looking to manufacturing sector it wont happen and enhancing the productivity through innovation and also enhance the competitive edge and tapping onto export business for engineering. Lathe is the oldest machine tool with certain machining operation and increasing the productivity on the operation mechanism through small changes of the process. With the thorough observation the starting process of machining is centering and lean changes can also improves productivity.

Keywords – Component; Lathe Machine, Tool Post, Chuck, Cutting Tool

INTRODUCTION

The lathe is one of the most essential machine tools. This multipurpose equipment is commonly used for executing a wide range of functions that includes shaping many solid substances such as wood, metal, etc. It is an important workshop tool which is extensively utilized in several industrial segments and especially in the metal shaping industries.

PROJECT PURPOSE

This project leads to: More productivity of crops Reduction in time

Less labor work Affordable equipment

DEFINITION

As lathe is the most conventional machine which remove chips from the job and chips is removed and desired shape is obtain on it. Beginning the procedure to start operation on lathe requires the centering of tool through proper balancing and taking the single point cutting tool to centre of job piece. It requires certain time at the beginning of process. If we are making a customized product than it would increase the time to adjust the tool and also more number of time we have to adjust that tool , so we are designing this tool to decrease overall time to manufacture product.

The purpose is to reduce the time consumption and make pro- duct most effective.

DESIGN AND CALCULATION

Simulation of Tool Post

Document Name and Reference

Treated As

Volumetric Properties

Document Path/Date

Modofied

L Pattern 1

Solid Body

Mass:0.698294 kg Volume:8.95248e- 005m^3 Weight:6.84328 N

D:\Laptop Backup_Oct 2017\DPP\BE

Project_2018\git student\Tool Post.SLDPR Oct 12 09:45:42

2018

Study Properties

Study name

Static 1

Analysis type

Static

Mesh type

Solid Mesh

Thermal Effect:

On

Thermal option

Include temperature loads

Zero strain temperature

298 Kelvin

Include fluid pressure effects from

Off

SOLIDWORKS Flow

Simulation

Solver type

FFEPlus

Inplane Effect:

Off

Soft Spring:

Off

Inertial Relief:

Off

Incompatible bonding options

Automatic

Large displacement

Off

Compute free body forces

On

Friction

Off

Use Adaptive Method:

Off

Result folder

SOLIDWORKS document (D:\Laptop

Backup_Oct 2017\DPP\BE

Project_2018\git

student)

Units

Unit system:

SI (MKS)

Length/Displacement

Mm

Temperature

Kelvin

Angular velocity

Rad/sec

Pressure/Stress

N/m^2

I. RESULTANT FORCES

Reaction forces

Selection set

Units

Sum X

Sum Y

Sum Z

Resultant

Entire Model

N

470.425

-0.242937

-0.0734186

470.425

Reaction Moments

Selection set

Units

Sum X

Sum Y

Sum Z

Resultant

Entire Model

N.m

0

0

0

0

STUDY RESULTS

Name

Type

Min

Max

Stress1

VON: von Mises Stress

57104.3 N/m^2

Node: 603

1.47901e+007

N/m^2 Node: 151

Tool Post-Static 1-Stress-

Name

Type

Min

Max

Displacement1

URES: Resultant Displacement

0 mm

Node: 151

0.00557972 mm

Node: 1322

Tool Post-Static 1-Displacement-Displacement1

Name

Type

Min

Max

Strain1

ESTRN:

Equivalent Strain

1.98638e-007

Element: 15353

4.3937e-005

Element: 6257

Tool Post-Static 1-Strain-

CONCLUSION

After the observation of lathe machines in industries we found some problem regarding the tool cantering in lathe. One of the major issue was the time consuming process of fixing the tool in tool post at required level with the help of the strips. In order to get required height of the tool, worker has to set the number of strips below the tool which quantity is unknown so worker has to perform that particular task number of tims just to set the tool. so we decided to fix this problem by eliminating the process of resting the strips below the tool. We design the tool post in which strips are not required and tool can be set in less time. The design required some essential analysis in solid work software for safety and performance of actual working model of our design. In process of analysis we have to change our design certain time for removing flaws from our design model.

REFERENCES

  1. HOLE SPACNG AND CENTERNG DEVICE by Henry Timpner, Milwaukee, Wis., assignor of one half to Robert F. Xainz, Milwaukee, Wis. Oct. 7, 1952.

  2. ANTIFRCTION SCREWAN NUT ASSEASY by Daniel F. Greby, Chicago, ii., assigicor, by mesae assign neigis, to Textron Eric Providence, R.E., a corporation of Rhode island, July 6, 1965.

  3. SELF-CENTERING CHUCK Kurt Reich, Dusseldorf, Germany, assignor to Paul Forkardt Kommanditgesellschaft, Dusseldorf, Germany, Dec. 2, 1969.

  4. LATHE CENTER DEVICE AND METHOD Claus Staplemann, Dover, N.J., assignor to Climax Engineering Co., Goleta, Calif. Oct. 5, 197.

  5. SCREW AND NUT MECHANISM , Inventor: Sven W. Nilsson, Partille, Sweden, Assignee: SKF Nova AB, Goteberg, Sweden , Dec. 21, 1982.

  6. DEVICE FOR POSITIONING AND LOCKING TURNING, MILLING OR OTHER TOOL HOLDERS ON TO MOBILE LATHE-MACHINING CENTER SLIDES WITH AN INTERNAL SPINDLE, Inventor: Alberto Cattani, Modena, Italy Assignee: Comau S.p.A., Grugliasco, Italy, Jun. 24, 1986.

  7. TOOL HOLDER ON WHICH NONROTATIONAL TOOL OF MACHINING CENTER IS MOUNTED Applicant: FANUC Corporation, Yamanashi (JP), Jun. 14, 2016.

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