Design and Manufacturing of Lathe Tool Post Grinding Attachment
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The document describes the design and manufacturing of a lathe tool post grinding attachment. The attachment can be mounted on a lathe machine to allow grinding operations, reducing manufacturing time and costs compared to conventional grinding processes. It was designed to achieve grinding speeds up to 3,500 RPM for external grinding and 12,000 RPM for internal grinding. The main components include a spindle shaft, quill, covers, and base plate that attaches to the lathe tool post. The design was modeled in Catia software and components were selected based on calculations from spindle design literature. The attachment aims to improve accuracy, reduce costs and worker safety compared to moving workpieces between machines for additional operations.
![International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2390
Base plate is the main part which attaches grinding machine
to lathe machine on the tool post. Motor is attached on this
body and main spindle shaft is attached on the front side
with C-clamp. We choose C-clamp because it is easy to
remove the spindle shaft from body. This body is
manufactured by casting process.
Figure 5. Main Supporting Body
The standard parts like bearing, washers, nuts and bolts,
studs, power transmission elements are selected according
to dimensions which arecalculatedbyanalytical method. We
choose taper roller bearing for this application which is
suitable for this machine. The power transmission elements
are of different types like gear drive, belt pulley, direct
coupling and motor.
We select belt pulley as a power transmission element
because it has good torque and thermal characteristics.
Initial and Maintenance cost is low as compared to others
and it is also less noise producing.
The overall assembly of this machine shown in fig
Figure 6. CAD model of assembly
5. CONCLUSION
As compared to other grinding machines it requires less
initial and maintenance cost. It is compact in size and handy
to use. Can be easily moved from one location to other
without any special means of transportation. Accuracy and
surface finish of this grinder is same as conventional
grinding machine. Large size work piece can be easily
surface finish with this grinder by providing base plate to
supporting body. Accuracy up to 0.002mm can be achieved.
As initial investment is less, one can easily afford this
attachment. Also the maintenance cost and operationcostof
this attachment is low as compared to conventional grinding
machines. Hence, if kept idle in absence of jobs there is no
any considerable loss to the owner.
REFERENCES
[1] Z.W. Zhong, V.C. Venkatesh, Recent Developments in
Grinding of Advanced Materials, International Journal of
Advanced Manufacturing and Technology, 41(2009) 468-
480.
[2] S. Malkin, C. Guo, Theory and applications of machining
with abrasives, 2nd ed. Published by Industrial Press, Inc.
New York, 2008.
[3] R.L. Hecker, S.Y. Liang, Predictive Modeling of Surface
Roughness.
4] R. Alberdi, J.A.Sanchez, I.Pombo, N.Ortega, Strategies for
optimal use of fluids in grinding, International Journal of
Machine Tools & Manufacture, 2011
[5] Users Manual, MITUTOYO Surftest SJ-400
[6] Sijo M.T and Biju N, 2010, “Taguchi method for
optimization of cutting parameters in Turning Operations”
AMAE.2010.01.536pp-103-105.
[7] Prof J.S. Colton, Manufacturing processes and systems,
Georgia Institute of Technology 2009, version 1
pp. 21–39.
[8] Jayakrishnan J and Suraj R, Effect of Roller Burnishing
Process on Tool Steel Material Using CNC
Lathe. International Journal of Design and Manufacturing
Technology (IJDMT), 7(4), 2016, pp. 281–
288.
[9] Phan Bui Khoi, Do Duc Trung and Ngo Cuong, A Study on
Multi-Objective Optimization of Plunge
Centerless Grinding Process. International Journal of
Mechanical Engineering and Technology, 5(11),
2014, pp. 140–152.
[10] Gunwant D. Shelake, Harshal K. chavan, Prof. R. R.
Deshmukh, Dr. S. D. Deshmukh, Model For
Prediction of Temperature Distribution in Workpiece for
Surface Grinding Using Fea. International.](https://image.slidesharecdn.com/irjet-v4i3624-180108070818/85/Design-and-Manufacturing-of-Lathe-Tool-Post-Grinding-Attachment-3-320.jpg)
Design and Manufacturing of Lathe Tool Post Grinding Attachment
- 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2388 Design and Manufacturing of Lathe Tool Post Grinding Attachment Sachin Bhosale1, Sagar Raut2, Swapnil Vipradas3, Sandeep Raut4 1, 2, 3 U.G. Student (B.E), Department of Mechanical Engineering, Anantrao Pawar College of Engineering & Research, Pune, Maharashtra, India 4 Assistant Professor, Department of Mechanical Engineering, Anantrao Pawar College of Engineering & Research, Pune, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - Now a days every one want to reduce the cost and time required for manufacturing of any product. To reduce this time and money we can use the lathe tool post grinding attachment instead of conventional grindingprocessessuchas centreless grinding and cylindrical grinding. The lathe tool post grinding attachment is very handy to use. It attaches on lathe machine where tool post is attached. We can achieve speeds up to 3,500 RPM for external grindingandupto 12,000 RPM for internal grinding by varyingsizeof drivingand driven pulleys. Key Words: Lathe tool post grinding, modelling in catia. 1. INTRODUCTION Any product can be finished or semi-finishedbyusingoneor more processes on the same machine or different machines. So we have idea of designing and fabricating the multipurpose machine which can be attached on lathe machine. We have selected the lathe machine because it is most basic of all machines and this is why it is called as “mother of all machines”. In our project we tried to perform operationwhich is perpendicular tospindleaxisi.e., grinding. The conventional Lathe machine can perform limited operation such as Facing, Turning, Tapering, Knurling, Grooving, Parting etc. For further operations,such as surface finishing etc., we have to transform work pieces to another location. Due to this time required for manufacturing the product increases and also increases the cost of product. To overcome this problem, we designedand fabricated the Lathe tool post grinding attachment. The tool post grinder is used for surfacefinishingof any product with proper limits. The work piece is heldinthe chuck and the grinding wheel removes abrasive particles which are in contact with the wheel. The grinding wheel achieves speed up to 3,500 RPM for external grinding and 12,000 RPM for internal grinding. With the help of this attachment, we can achieve accuracy up to 0.002mm. 2. Objective a. The main objective is to reduce manufacturingtime and cost of the product. b. To increase accuracy and minimize tolerance. c. To increase the safety of worker by reducing traveling of heavy jobs. d. Reduces the initial investment and maintenance cost. 3. Problem statement To design and manufacture lathe tool post grinding attachment for surface finishing operations on cylindrical components withminimum operatingandmaintenancecost, low initial investment and reduced manufacturing time. 4. Design Methodology The main part of the lathe tool post grinding attachment is spindle shaft from design point of view. The parts of the spindle are Quill, Quill cover, Front and back cover, etc. The dimensions of all the above parts are calculated from standard spindle design book and standard parts are selected from the NSK standard spindle catalogue. For these parts we selected EN8 and EN19 (High alloy steel) material for manufacturing.
- 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2389 Spindle shaft is designed with dimensions which are calculated according to analytical process by using spindle design book. According to these dimensions we designed spindle shaft on Catia software. Spindle shaft is the main rotating body in this grinding machine. Due to this we selected EN19 material which is high quality alloy steel and it is well known for high ductility and shock resistance.Catia model of spindle shaft is shown in fig 1. Figure 1. Spindle Shaft The overall length of spindle is 330mm and maximum diameter is 40mm. The other parts in the assembly are supporting parts for proper working which are given below. These parts dimensions are also calculated by analytical method. Catia design of some main parts which supports the spindleare as follows Figure 2. Quill Cover Figure 3. Cup Figure 4. Grease seal
- 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2390 Base plate is the main part which attaches grinding machine to lathe machine on the tool post. Motor is attached on this body and main spindle shaft is attached on the front side with C-clamp. We choose C-clamp because it is easy to remove the spindle shaft from body. This body is manufactured by casting process. Figure 5. Main Supporting Body The standard parts like bearing, washers, nuts and bolts, studs, power transmission elements are selected according to dimensions which arecalculatedbyanalytical method. We choose taper roller bearing for this application which is suitable for this machine. The power transmission elements are of different types like gear drive, belt pulley, direct coupling and motor. We select belt pulley as a power transmission element because it has good torque and thermal characteristics. Initial and Maintenance cost is low as compared to others and it is also less noise producing. The overall assembly of this machine shown in fig Figure 6. CAD model of assembly 5. CONCLUSION As compared to other grinding machines it requires less initial and maintenance cost. It is compact in size and handy to use. Can be easily moved from one location to other without any special means of transportation. Accuracy and surface finish of this grinder is same as conventional grinding machine. Large size work piece can be easily surface finish with this grinder by providing base plate to supporting body. Accuracy up to 0.002mm can be achieved. As initial investment is less, one can easily afford this attachment. Also the maintenance cost and operationcostof this attachment is low as compared to conventional grinding machines. Hence, if kept idle in absence of jobs there is no any considerable loss to the owner. REFERENCES [1] Z.W. Zhong, V.C. Venkatesh, Recent Developments in Grinding of Advanced Materials, International Journal of Advanced Manufacturing and Technology, 41(2009) 468- 480. [2] S. Malkin, C. Guo, Theory and applications of machining with abrasives, 2nd ed. Published by Industrial Press, Inc. New York, 2008. [3] R.L. Hecker, S.Y. Liang, Predictive Modeling of Surface Roughness. 4] R. Alberdi, J.A.Sanchez, I.Pombo, N.Ortega, Strategies for optimal use of fluids in grinding, International Journal of Machine Tools & Manufacture, 2011 [5] Users Manual, MITUTOYO Surftest SJ-400 [6] Sijo M.T and Biju N, 2010, “Taguchi method for optimization of cutting parameters in Turning Operations” AMAE.2010.01.536pp-103-105. [7] Prof J.S. Colton, Manufacturing processes and systems, Georgia Institute of Technology 2009, version 1 pp. 21–39. [8] Jayakrishnan J and Suraj R, Effect of Roller Burnishing Process on Tool Steel Material Using CNC Lathe. International Journal of Design and Manufacturing Technology (IJDMT), 7(4), 2016, pp. 281– 288. [9] Phan Bui Khoi, Do Duc Trung and Ngo Cuong, A Study on Multi-Objective Optimization of Plunge Centerless Grinding Process. International Journal of Mechanical Engineering and Technology, 5(11), 2014, pp. 140–152. [10] Gunwant D. Shelake, Harshal K. chavan, Prof. R. R. Deshmukh, Dr. S. D. Deshmukh, Model For Prediction of Temperature Distribution in Workpiece for Surface Grinding Using Fea. International.