Upload
uma-shankar
View
96
Download
9
Embed Size (px)
Citation preview
CONTENTS
SL.NO DATE NAME OF THE EXERCISE PAGE NO REMARKS
CYCLE - 1
1INTRODUCTION TO CNC MACHINE& NC CODES
2CHAMFERING OPERATIONUSING CNC MACHINE
3GROOVING OPERATIONUSING CNC MACHINE
4PLAIN TURNING OPERATIONUSING CNC MACHINE
5FACING OPERATIONUSING CNC MACHINE
6TAPER TURNING OPERATIONUSING CNC MACHINE
7THREADING OPERATIONUSING CNC MACHINE
CYCLE – 1I
8LINEAR INTERPOLATION USING CNC MILLING MACHINE
9CIRCULAR INTERPOLATION USING CNC MILLING MACHINE
10DRILLING OPERATION USINGCNC MILLING MACHINE
11PECK DRILLING USING CNC MILLING MACHINE
12BORING OPERATION USING CNC MILLING MACHINE
13SOLID MODELLING OFUNIVERSAL COUPLING USING PRO-E
14SOLID MODELLING OFSCREW JACK USING PRO-E
EX.NO: - 2 CHAMFERING OPERATION USING CNC LATHE MACHINE
DATE:-
AIM: - To programme the Chamfering operation given work piece as per
given drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Turning tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the chamfering operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM:-
Billet X25 Z75;
G21 G98 G40;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z1;
G01 X25 Z0 F30;
G90 X25 Z-5 R0 F30;
X25 Z-5 R-1 F30;
X25 Z-5 R-2 F30;
X25 Z-5 R-3 F30;
X25 Z-5 R-4 F30;
X25 Z-5 R-5 F30;
M01;
G28 U0 W0;
M05;
M30;
EX.NO: - 3 GROOVING OPERATION USING CNC LATHE MACHINEDATE:-
AIM: - To programme the Grooving operation given work piece as per
given drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Grooving tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the Grooving operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM: -
Billet X25 Z75;
G21 G98;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z-35;
M01;
G75 R1;
G75 X10 w-5 P1000 Q250 f30;
M01;
G28 U0 W0;
M05;
M30;
EX.NO: - 4 PLAIN TURNING OPERATION USING CNC LATHE MACHINE
DATE:-
AIM: - To programme the Plain turning operation given work piece as per
given drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Turning tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the Plain turning operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM: -
Billet X25 Z75;
G21 G98 G40;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z1;
G90 X25 Z-40 F30;
X24;
X23;
X22;
X21;
X20;
M01;
G28 U0 W0;
M05;
M30;
EX.NO: - 5 FACING OPERATION USING CNC MACHINEDATE:-
AIM: - To programme the Facing operation given work piece as per given
drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Turning tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the Facing operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM: -
Billet X25 Z75;
G21 G98 G40;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z1;
G94 X0 -0.5 F30;
Z-1;
Z-1.5;
Z-2;
Z-2.5;
Z-3;
M01;
G28 U0 W0;
M05;
M30;
EX.NO: - 6 TAPER TURNING OPERATION USING CNC MACHINEDATE:-
AIM: - To programme the Taper turning operation given work piece as per
given drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Turning tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the Taper turning operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM: -
Billet X25 Z75;
G21 G98 G40;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z1;
G01 X25 Z0 F30;
G90 X25 Z-15 R0 F30;
X25 Z-15 R-1 F30;
X25 Z-15 R-2 F30;
X25 Z-15 R-3 F30;
X25 Z-15 R-4 F30;
X25 Z-15 R-5 F30;
M01;
G28 U0 W0;
M05;
M30;
EX.NO: - 7 THREADING OPERATION USING CNC MACHINEDATE:-
AIM: - To programme the Threading operation given work piece as per
given drawing using CNC turning centre.
APPARATUS REQUIRED:-
CNC Turning centre Turning & Threading tool Chuck key Work piece Vernier caliper Compressor
PROCEDURE:-
Power supply and controller on. Clean and oiling done. Open CNC door using compressed air. Work piece is fitted in chuck by using key. Enter the program is computer in compressor and hence the Simulation in computer. Tool offsetting should be done. Open the door and clean the chips. Dimension is checked.
RESULT:-
Thus the Threading operation on the given work piece as per the given drawing by using CNC lathe machine.
PROGRAM: -Billet X25 Z75;
G21 G98 G40;
G28 U0 W0;
M06 T01 01;
M03 S1200;
G00 X25 Z1;
G90 X25 Z-50 F30;
X24.5;
X24;
M01;
G28 U0 W0;
M06 T02 02;
G97;
M03 S1200;
G00 X24 Z1;
G01 X24 Z0;
G76 P041560 Q150 R0.1
G76 X20.32 Z-40 P1840 Q200 F3;
M01;
G28 U0 W0;
M05;
M30;
CYCLE – II
EX.NO: - 8 LINEAR INTERPOLATION USING CNC MILLING MACHINE
DATE:-
AIM: - To programme Linear interpolation on the given work piece as per
the given drawing by using CNC Milling machine.
APPARATUS REQUIRED:-
CNC Milling machine End mill cutter ( Dia 4 mm tool) Allen key Work piece Vernier caliper Compressor
PROCEDURE:-
Prepare the part programme as per the given specification and enter programme in computer system.
Lubricate the various parts of the CNC machine by using level provider at the left side.
Open CNC door and fix the given work piece in the chuck by using Allen key.
Fix the end mill tool in the tool holder. Close the CNC door using pneumatic air and simulate the
prepared part programme. Run the CNC programme. After the completion of programme. Remove the finished component and the clean the work piece.
RESULT:-
Thus the linear interpolation operation was completed by usingThe CNC milling machine.
PROGRAM: -
[BILLET X90 Y90 Z10;[EDGE MOVE X0 Y0 Z0;[TOOL DEF T01 D04;G21 G28 X0 Y0;M06 T01;M03 S1200;G90 G00 X10.Y10;G00 Z2;G01 Z-.5;X80;Y80;X10;Y10;X80. Y80;G00 Z2;G00 X10 Y80;G01 Z-5;X80 Y10;G00 Z2;G91 G28 Z2;G28 X0 Y0;
M05; M30;
EX.NO: - 9 CIRCULAR INTERPOLATION USING CNC MILLING MACHINE
DATE:-
AIM: - To programme Circular interpolation on the given work piece as
per the given drawing by using CNC Milling machine.
APPARATUS REQUIRED:-
CNC Milling machine End mill cutter ( Dia 4 mm tool) Allen key Work piece Vernier caliper Compressor
PROCEDURE:-
Prepare the part programme as per the given specification and enter programme in computer system.
Lubricate the various parts of the CNC machine by using level provider at the left side.
Open CNC door and fix the given work piece in the chuck by using Allen key.
Fix the end mill tool in the tool holder. Close the CNC door using pneumatic air and simulate the
prepared part programme. Run the CNC programme. After the completion of programme. Remove the finished component and the clean the work piece.
RESULT:-
Thus the Circular interpolation operation was completed by using
the CNC milling machine.
PROGRAM: -
[BILLET X90 Y90 Z10;[EDGE MOVE X0 Y0 Z0;[TOOL DEF T01 D04;G21 G28 X0 Y0;M06 T01;M03 S1200;G90 G00 X10 Y10;G00 Z2;G01 Z-0.5;G02 X80 Y10 R35;G02 X80 Y80 R35;G02 X10 Y80 R35;G02 X10 Y10 R35;G02 X10 Y80 R100;G02 X80 Y80 R100;G02 X80 Y10 R100;G02 X10 Y10 R100;G00 Z2;G91 G28 Z0;G28 X0 Y0;M05;
M30;
EX.NO: - 10 DRILLING OPERATION USING CNC MILLING MACHINEDATE:-
AIM: - To programme drilling operation on the given work piece as per
the given drawing by using CNC Milling machine.
APPARATUS REQUIRED:-
CNC Milling machine Drill ( Dia 4 mm tool) Allen key Work piece Vernier caliper Compressor
PROCEDURE:-
Prepare the part programme as per the given specification and enter programme in computer system.
Lubricate the various parts of the CNC machine by using level provider at the left side.
Open CNC door and fix the given work piece in the chuck by using Allen key.
Fix the end mill tool in the tool holder. Close the CNC door using pneumatic air and simulate the
prepared part programme. Run the CNC programme. After the completion of programme. Remove the finished component and the clean the work piece.
RESULT:-
Thus the drilling operation was completed by using the CNC milling machine.
PROGRAM: -
[BILLET X 100 Y 50 Z 10;
[EDGEMOVE X0 Y0 Z0;
[TOOLDEF T2 D4 = DRILL;
M06 T01 01;
M03 S1200;
G90 G99 G81 X20 Y20 Z-10 R0 F100;
X40;
X60. Z-10;
X80. Z-10;
G00 Z2;
G91 G28 Z0;
G28 X0. Y0;
M05;
M30;
EX.NO: - 11 PECK DRILLING OPERATION USING CNC MILLING MACHINE
DATE:-
AIM: - To programme Peck drilling operation on the given work piece as
per the given drawing by using CNC Milling machine.
APPARATUS REQUIRED:-
CNC Milling machine Drill ( dia 10 mm tool) Allen key Work piece Vernier caliper Compressor
PROCEDURE:-
Prepare the part programme as per the given specification and enter programme in computer system.
Lubricate the various parts of the CNC machine by using level provider at the left side.
Open CNC door and fix the given work piece in the chuck by using Allen key.
Fix the end mill tool in the tool holder. Close the CNC door using pneumatic air and simulate the
prepared part programme. Run the CNC programme. After the completion of programme. Remove the finished component and the clean the work piece.
RESULT:-
Thus the peck drilling operation was completed by using the CNC milling machine.
PROGRAM: -
[BILLET X100 Y100 Z10;[TOOLDEF T1 D10;[EDGEMOVE X0 Y0;G21 G94 G40 G91;G28 X0 Y0;G90;M06 T1;M03 S1500;G00 X20 Y25 Z5;G99;G83 X20Y25 Z-5 P1000 Q0.5 R0.5 R0.5 F30 K1;X50 Y25;X80 Y25;X80 Y75;X50 Y75;X20 Y75;G80;G91;G00 Z2;G28 X0 Y0;M05;M30;
EX.NO: - 12 BORING OPERATION USING CNC MILLING MACHINEDATE:-
AIM: - To programme Boring operation on the given work piece as per the
given drawing by using CNC Milling machine.
APPARATUS REQUIRED:-
CNC Milling machine Drill- dia 5mm, boring – dia 8mm tool Allen key Work piece Vernier caliper Compressor
PROCEDURE:-
Prepare the part programme as per the given specification and enter programme in computer system.
Lubricate the various parts of the CNC machine by using level provider at the left side.
Open CNC door and fix the given work piece in the chuck by using Allen key.
Fix the end mill tool in the tool holder. Close the CNC door using pneumatic air and simulate the
prepared part programme. Run the CNC programme. After the completion of programme. Remove the finished component and the clean the work piece.
RESULT:-
Thus the Boring operation was completed by using the CNC milling machine.
PROGRAM: -
[BILLET X100 Y100 Z10;[TOOLDEF T1 D5 = DRILL[TOOLDEF T2 D8 = BORING[EDGEMOVE X0 Y0;G21 G94 G40 G91;G28 X0 Y0;G90;M06 T1;M03 S1500;G00 X20 Y25. Z5;G99;G83 X20 Y25 Z-5 P1000 Q0.5 R1. F30. K1;X80 Y25;X80 Y75;X20 Y75;X50 Y50;G80;G91;G28 X0 Y0;G90;M06 T2;G00 X20 Y25 Z5;G99;G86 X20 Y25 Z-3 P100 Q0.5 R0.5 F30. K1;
X80 Y25;X80 Y75;X20 Y75;X50 Y50;G91;G28 X0 Y0;M05;M30;
EX.NO: - 13 SOLID MODELLING OF UNIVERSAL COUPLING USING PRO-E
DATE:-
AIM: To draw the given solid model using pro-e software.
SOFTWARE REQUIRED:
Windows XP
Pro – E wildfire – 2.0
HARDWARE REQUIRED:
1 GB RAM
160 GB HARDDISK
PROCESSOR INTEL DUALCORE 2.5 GHZ.
PROCEDURE:
Procedure to create solid model using commands like extrude, revolve, blend, sweep, etc.,
The 3D model is modified according to the requirements using the following commands cut, hole, fillet, chamfer, rib, etc.,
Thus 3D model is completed using pro-e with dimensions.
RESULT:
Thus the 3D model is completed using Pro-E wildfire software.
-----------------------------
UNIVERSAL COUPLING
EX.NO: - 14 SOLID MODELLING OF SCREW JACK USING PRO-EDATE:-
AIM: To draw the given solid model using pro-e software.
SOFTWARE REQUIRED:
Windows XP
Pro – E wildfire – 2.0
HARDWARE REQUIRED:
1 GB RAM
160 GB HARDDISK
PROCESSOR INTEL DUALCORE 2.5 GHZ.
PROCEDURE:
Procedure to create solid model using commands like extrude, revolve, blend, sweep, etc.,
The 3D model is modified according to the requirements using the following commands cut, hole, fillet, chamfer, rib, etc.,
Thus 3D model is completed using pro-e with dimensions.
RESULT:
Thus the 3D model is completed using Pro-E wildfire software.
-----------------------------
SCREW JACK
V.S.B. ENGINEERING COLLEGEKARUR – 639111.
DEPARTMENT OF MECHANICAL ENGINEERING
COMPUTER AIDED MANUFACTURINGLABORATORY MANUAL
PREPARED BYMR. R. DHILEEPAN KUMARASAMY, M.E,
T. PONNUSAMY, M.E,G.SUBRAMANI, AMIE,
LAB – INCHARGEMR. M.UMASHANKARAN, M.E,
(HEAD OF THE DEPT)
EX.NO:- 1 INTRODUCTION TO NC/CNC SYSTEMDATE:
INTRODUCTION:
The part programmed are written on a software using high
level language since computer has enhanced memory capacity the NC machine
operations are controlled by the computer. The NC system controlled by
computer are known as “computer numerical control” (CNC) here punched
tapes are replaced by floppy or ROM disc.
ADVANTAGES:-
Greater flexibility in manufacturing.
Improved quality control.
Accuracy is more.
The part programs can be easily edited.
Repeated operations can be stored as a sub-routine.
Advanced programming like mirroring, sub-routine etc.
Ability to store tool offset and tool compensation.
Production time is less.
Highly skilled and experienced operates is not necessary.
FUNCTION:-
To control the machine tool.
To do in process compensation.
To improve the programming & operating features.
To diagnose the machine tool.
CNC PART PROGRAMME – G CODES & M CODES
Part programme consist of numbers at blocks. Block consists of numbers
words. Word consists of numbers & alphabets.
ALPHABETS: - MEANING
A Rotation about x – axis
B Rotation about y – axis
C Rotation about z – axis
D&E Rotation about additional axis
F Feed function
G Preparatory function
I Interpolation parameter
J Thread pitch parallel to y – axis
K Thread pitch parallel to z – axis
M Miscellaneous function
N Block numbers
O Assign program number
P, Q, R Thread movement parallel to x, y, z axis
S Spindle speed function
T Tool function
U, V, W Second movement parallel to x, y, z axis
X Movement in X axis
Y Movement in Y axis
Z Movement in Z axis
G – CODES (PREPARATORY FUNCTIONS) FOR TURNNING
G – CODES FUNCTION
G00 - Rapid Traverse
G01 - Linear Interpolation (Feed)
G02 - Circular Interpolation (Clockwise)
G03 - Circular Interpolation (Counter Clockwise)
G04 - Dwell
G20 - Inch data input
G21 - Metric data input (mm)
G28 - Reference point return
G32 - Thread cutting
G40 - Tool nose radius compensation cancel
G41 - Tool nose radius compensation – left
G42 - Tool nose radius compensation – Right
G50 - Maximum spindle speed setting
G70 - Finishing cycle
G71 - Stock removal in turning (Multiple turning)
G72 - Stock removal in facing (Multiple facing)
G73 - Pattern repeating
G74 - Peck drilling in Z – axis
G75 - Multiple Grooving in X – axis
G76 - Multiple Thread cutting cycle
G90 - Turning cycle
G92 - Thread cutting cycle
G94 - Facing cycle
G96 - Constant surface speed control
G97 - Constant surface speed control cancel
G98 - Feed per minute
G99 - Feed per revolution
M – CODES (MISCELLANEOUS FUNCTIONS) FOR TURNING
M – CODES FUNCTION
M00 - Program stop
M01 - Optional stop
M02 - Program End
M03 - Spindle rotation (CW)
M04 - Spindle rotation (CW)
M05 - Spindle stop
M06 - Tool change
M08 - Coolant ON
M09 - Coolant OFF
M10 - Vice open
M11 - Vice close
M98 - Sub program call
M99 - Sub program exit
M30 - Program stop and Rewind
G – CODES (PREPARATORY FUNCTIONS) FOR MILLING
G – CODES FUNCTION
G00 - Rapid Traverse
G01 - Linear Interpolation (Feed)
G02 - Circular Interpolation (Clockwise)
G03 - Circular Interpolation (Counter Clockwise)
G04 - Dwell
G17 - XY plane selection
G18 - XY plane selection
G19 - YZ plane selection
G20 - Inch data input
G21 - Metric data input (mm)
G40 - Tool nose radius compensation cancel
G41 - Tool nose radius compensation – left
G42 - Tool nose radius compensation – Right
G74 - Counter tapping cycle
G76 - Fine Boring
G80 - Canned cycle cancel
G83 - Peck drilling cycle
G86 - Counter boring cycle
G89 - Boring cycle
G90 - Absolute method
G91 - Incremental method
G94 - Feed per Minute
G95 - Feed per revolution
G98 - Return to initial point in canned cycle
G99 - Return to R – point in canned cycle
M – CODES (MISCELLANEOUS FUNCTIONS) FOR MILLING
M – CODES FUNCTION
M00 - Program stop
M01 - Optional stop
M02 - Program End
M03 - Spindle rotation (CW)
M04 - Spindle rotation (CW)
M05 - Spindle stop
M06 - Tool change
M08 - Coolant ON
M09 - Coolant OFF
M10 - Vice open
M11 - Vice close
M98 - Sub program call
M99 - Sub program exit
M30 - Program stop and Rewind
M71 - X - Mirror ON
M71 - Y - Mirror ON
M80 - X – Mirror off
M81 - Y – Mirror off
M98 - Sub program call
M99 - Sub program exit
SYLLABUS