International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Design and Manufacturing of Lathe Tool Post Grinding Attachment Sachin Bhosale1, Sagar Raut2, Swapnil Vipradas3, Sandeep Raut4 1, 2, 3 U.G.
4 Assistant
Student (B.E), Department of Mechanical Engineering, Anantrao Pawar College of Engineering & Research, Pune, Maharashtra, India
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 2. Objective 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 grinding processes such as 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 grinding and up to 12,000 RPM for internal grinding by varying size of driving and driven pulleys.
a. b. c. d.
The main objective is to reduce manufacturing time and cost of the product. To increase accuracy and minimize tolerance. To increase the safety of worker by reducing traveling of heavy jobs. Reduces the initial investment and maintenance cost.
3. Problem statement
Key Words: Lathe tool post grinding, modelling in catia.
To design and manufacture lathe tool post grinding attachment for surface finishing operations on cylindrical components with minimum operating and maintenance cost, low initial investment and reduced manufacturing time.
1. INTRODUCTION Any product can be finished or semi-finished by using one or 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 operation which is perpendicular to spindle axis i.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 designed and fabricated the Lathe tool post grinding attachment.
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.
The tool post grinder is used for surface finishing of any product with proper limits. The work piece is held in the 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.
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