Design and Development of Automation of Loading and Unloading to DX-100 CNC Turning Center

IJSTE - International Journal of Science Technology & Engineering | Volume 1 | Issue 11 | May 2015 ISSN (online): 2349-784X

All rights reserved by www.ijste.org

359

Design and Development of Automation of

Loading and Unloading to DX-100 CNC Turning

Center

Shivbhadrasinh Jhala Apurva Indrodia

PG Scholar Assistant Professor

Department of Mechanical Engineering Department of Mechanical Engineering

Marwadi Edu. Foundation Rajkot Marwadi Edu. Foundation Rajkot

R.L. Jhala

Principal Faculty of Technology

Department of Mechanical Engineering

Abstract

Design and Development of Automation of Loading and Unloading to DX-100 CNC Turning Center This paper involves the use of automation solution to reduce operator fatigue and increase efficiency. Industries in the recent day concentrating on CNC

machineries for mass production by replacing conventional lathes to improve productivity, But loading and unloading of job

carried over by manual , However Present work, machine tool manufacturer are coming with solutions including automatic

loading and unloading to reduce the fatigue of labor and reduce cycle time and increasing productivity. Productivity

Improvement on a CNC DX-100 by Automatic Loading and Unloading of Cylindrical Component includes analysis and detailed

study of manufacturing process including loading and unloading methods of components on a machine. Present work aims at

improving the productivity of cylinder components on a CNC turning center. Here emphasis is placed upon improving the

existing time consuming methods.

Keywords: Autoloader, Loading-Unloading, Automation, CNC, DX-100

________________________________________________________________________________________________________

I. INTRODUCTION

Turning operation is one amongst the foremost basic machining processes. within the family of DX series DX100 is developed

for batch kind production in trade. Its incline rigid mono block structure permits high dynamic parameters that absorb torsion and

damps vibration therefore guarantee in highest preciseness, metal cutting capability and gear life. There area unit several

operations will done by DX100 like Facing, shaping (external shaping and face grooving), tapper turning , parting, boring,

drilling, threading. Automation is that the use or introduction of automatic instrumentation during a producing or alternative

method or facility.

II. PROBLEM DEFINITION

In DX 100 Machine loading and unloading Is done by Manually, and manual work manpower Target is to Automation in DX

100 machine,. So By using robotics we can load & unload the components, which in turn reduces the cycle time & also require

less labour work. So, we compare the job in less time at high accuracy. Hence we can achieve the goal to reduce the cycle time &

increase the productivity.

III. PROBLEM APPROACH

Existing Scenario: A.

In DX 100 Operator friendly operating controls with simple job loading and unloading facilities. Selecting easy and human

ergonomically position labour adjust the distance from the machine and make the manual job loading unloading.In DX 100

machine, for calculating manual loading and unloading time, there is referred a particular job with following dimensions:

A cylindrical part with length of 148mm and diameter 0f 20mm

To calculate average time of loading and unloading job in manual operations, there are performed some practical to record their

different time of loading-unloading. Table -1

Design and Development of Automation of Loading and Unloading to DX-100 CNC Turning Center (IJSTE/ Volume 1 / Issue 11 / 062)


360

Sr

No.

operation

Time (Approximate)

Required Operator

1 Open the door and unload the finished job from chuck 8 to 10 sec 1

2 Put the finished job on table and bring the new job for machining 5 sec 1

3 Load the job in the chuck and close the door and start machining 8 to 10 sec 1

21 to 25 sec by one operator

To calculate average time of loading and unloading job in manual operations, there are performed some practical to record

their different time of loading-unloading. Table 2

Practical

No.

Time for Loading and

Unloading(Approximate) 7 22 sec

1 22 sec 8 28 sec

2 24 sec 9 30 sec

3 21 sec 10 25 sec

4 24 sec Average Time for loading-unloading 24.4 sec 25 sec

5 23 sec

6 25 sec

So, approximately, total time of finished job = machining time + Loading-unloading time

= 1 min 52 sec + 25 sec

= 2 min 17 sec =137 sec

According to this time for a single job,

Number of finished job per hour =

= 26.27 26 jobs So, there are 26 jobs which are completed in one hour.

As working condition of machine, it performs for 22 hour per day in company.

So, total number of finished job per day = number of job per hour * total working hour per day

= 26 * 22

= 572 job per day

To calculate average time for loading-unloading per day,

= average time of loading-unloading for single job * number of finished job per day

= 25 sec * 572

= 14,300 sec

= 238 min 20 sec

= 3 hour 58 min 20 sec

So, average time for loading-unloading per day is 3 hour 58 min 20 sec.

Cycle on Each Component: B.

The Auto Loader is one of the equipment which design for DX 100 Turning Machine and it manipulates the human as it is an

automatic device. It loads the work pieces on the chuck from the plate and because of that the production rate of DX 100 turning

machine can be increased.

IV. DEVELOPMENT OF LOADING UNLOADING SYSTEM

Turning operation is one amongst the foremost basic machining processes. With in the family of DX series DX100 is developed

for batch kind production in trade. Its incline rigid mono block structure permits high dynamic parameters that absorb torsion and

damps vibration therefore guaranteeing highest preciseness, metal cutting capability and gear life. There area unit several

operations will done by DX100 like Facing, shaping (external shaping and face grooving), tapper turning ,parting, boring,

drilling, threading. Automation is that the use or introduction of automatic instrumentation during a producing or alternative

method or facility.

Concept of Automation: A.

For automation in DX 100 machine, considering a plate which is used to store number of job pieces which are going to perform

for machining. The capacity of plate is 9 to 10 jobs. This is depended on the dimensions of job.



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Fig. 1: Job

Fig. 2: Plate

Design Possibility: Case I: Upper Side of the Chuck: B.

Fig. 3: Upper Side of the Chuck

Here, Plate is located at upper side of the chuck. A mechanism like gripper is used to hold job from the plate and to load in the

chuck. Dimension of gripper is approximately same as per job. The path of this mechanism is shown as line diagram in figure

4.3. The path of mechanism is denoted as 1-2-3-4-5. The unloading of the part is automatic, after the completion of machining

cycle, chuck will open and part will be dropped into the plate.



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Design Possibility: Case Ii: Lower Side of the Chuck: C.

Fig. 4: Lower Side of the Chuck

Here, Plate is located at lower side of the chuck. A mechanism like gripper is used to hold job from the plate and to load in the

chuck. The path of this mechanism is shown as line diagram in figure 4.4. The path of mechanism is denoted as 1-2-3-4-5.

Design of Autoloader And Its Assembly Component: D.

Fig. 5: Assembly of Auto Loader

Fig. 6: Exploded View of Auto Loader

Production Time for New Design: E.

Table 3

Sr. No. Operation Time(Approximate) Required Operator

1 Open the door and unload the finished job from chuck 5 to 6 sec 0

2 Put the finished job on table and bring the new job for machining 2 sec 0

3 Load the job in the chuck and close the door and start machining 5 to 6 sec 0

Total Time( Approximate) 12 to 14 sec

To calculate average time of loading and unloading job in manual operations, there are performed some practical to record their

different time of loading-unloading.



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Table 4 Average Loading Unloading Time for Job

Practical No. Time for Loading and Unloading(Approximate) 6 13

1 13 7 13

2 13 8 13

3 13 9 13

4 13 10 13

5 13 Average Time for loading-unloading 13

So, Average time for loading-unloading is 13 sec.

To calculate production of number of jobs per day, there is taking 1 min 52 sec as machining time for job. Here, machining

operation is considered as threading on the job.

So, approximately, total time of finished job = machining time + Loading-unloading time

= 1 min 52 sec + 13 sec

= 2 min 17 sec=125 sec

According to this time for a single job,

Number of finished job per hour =

= 28.8 29 jobs So, there are 29 jobs which are completed in one hour.

As working condition of machine, it performs for 22 hour per day in company.

So, total number of finished job per day = number of job per hour * total working hour per day

= 29 * 22

= 638 job per day

To calculate average time for loading-unloading per day, = average time of loading-unloading for single job by autoloader * number of finished job per day

= 13 sec * 638

= 8294 sec

= 137 min 14 sec

= 2 hour 17 min 14 sec

So, average time for loading-unloading per day is 2 hour 17 min 14 sec.

V. RESULT AND DISCUSSION

Table 5 Result and Discussion

Sr.

No. Operation Time(Approximate)

Required

Operator Time(Approximate)

Required

Operator

1 Open the door and unload the finished job from

chuck

with Auto loader Manually

- 0 8 to 10 sec 1

2 Put the finished job on table and bring the new

job for machining - 0 5 sec 1

3 Load the job in the chuck and close the door and

start machining - 0 8 to 10 sec 1

Total Time( Approximate) 12 to 14 sec by one operator 21 to 25 sec by one operator

Average Time for loading-unloading 13 sec 25

total time of finished job 125 sec 137 sec

Number of finished job per hour 29 jobs 26 jobs

finished job per day 638 job per day 572 job per day

average time for loading-unloading per day 2 hour 17 min 14 sec 3 hour 58 min 20sec

After experimental investigation we can conclude that implementation of Auto loader in cycle the DX100 CNC machines productivity increase.



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VI. CONCLUSION

Development of automatic loading and unloading arrangement in the in DX 100 reducing Labur cost and total cycle time is

minimized also increased productivity. Profit for industry is 638 job instead of 572 job per day using proposed Design of

autoloader in particularly DX 100 Machine

ACKNOWLEDGMENT

This Research work grateful to Department of Mechanical Engineering Faculty of PG Studies & Research, MEFGI and Mr

Yuvrajsinh Jadeja (Engineer- Customer Solution) &Jyoti CNC Ltd Rajkot for necessary Experimental facilities and all

testimonial provided for make successful Research.

REFERENCES

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[2] Karan Sharma, Naik Nitesh, Arun Prabhu and George Verghese, Setup Time Reduction for CNC Hobbing machine Implementing SMED snd Design of Split Fixture, in 6th SARC-IRF International Conference, 2014.

[3] Sandeep Soni & Ravindra Mane, Design & Modelling for Fixture for cylinder liner Honing operation by Automatic Loading & Unloading Device, in 2013.

[4] Sandeep S and K. R. Prakash, Automation of Loading and Unloading to CNC Turning Centre, in International Journal on Mechanical Engineering and Robotics 2013.

[5] Prof. P.R. Sawant, Mr. R. A.Barawade, Design and Development of SPM-A Case Study In Multi Drilling and Tapping Machine, in International Journal of Advanced Engineering Research and Studies, 2012.

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[7] Rohan Kulkarni, Mr. S. Shivkumar & Roopa K. Rao, Productivity Improvement on a CNC Lathe by Automatic Loading and Unloading of Throttle Valve Component, in December 2011.

[8] Jan Helge Bohn, William R. Saunders and Robert H. Sturges, Automated Loading and Unloading of the Stratasys FDM 1600 Rapid Prototyping System, Virginia in 2000.

Documents

Design and Development of Automation of Loading and Unloading to DX-100 CNC Turning Center