Friday, April 15, 2022

CNC INTRODUCTION, OPERATING SYSTEM AND WORKING SYSTEM

 

CNC INTRODUCTION, OPERATING SYSTEM AND WORKING SYSTEM

INTRODUCTION

            Lathe also known as Mother of machine, was invented by Hentry Maudsly. A branch of Lath tree is used to spin. Later the lathe machine gradually developed. The industry developed further and then the CNC (Computerized Numerical Control) machine appeared.

TYPES

·         CNC TURNING CENTER

·         CNC MACHINING CENTER

·         CNC HORIZONTAL MACHINING CENTER

·         CNC VERTICAL TURNING AND BORING MACHINES

·         CNC BORING MACHINE

·         CNC DRILLING MACHINE

·         CNC VERTICAL TURRET LATHE

·         CNC VERTICAL TURN MILL CENTER

·         CNC GEAR CUTTING MACHINE

·         CNC ENGRAING MACHINE

·         CNC PLANO MILLER

·         CNC TURRET PUNCH PRESS

·         CNC PRESS BRAKES

·         CNC TUBE BENGING MACHINE

·         CNC LASER ENGRAVING/MACHINING

·         CNC WELDING MACHINE/ROBOT

·         CNC FLAME CUTTING MACHINE

·         CNC WIRE CUTTING MACHINE

OPERATING SYSTEM

·         FANUC OPERATING SYSTEM

·         SINUMERIC OPERATING SYSTEM

·         MACKINO OPERATING SYSYTEM

·         FAGER OPERATING SYSTEM

·         ULTIMAX OPERATING SYSTEM

·         BROTHER OPERATING SYSTEM

 

 

WORKING SYSTEM

            1.         POSITIONING SYSTEM

                        i           POINT TO POINT POSITIONING

                        ii          CONTINUOUS – PATH

 

POINT TO POINT POSITIONING

            In this system tool moves in straight line only. It is used for drilling, reaming, boring and straight milling.

 

CONTINUOUS – PATH

            This system used for to machine arc and angle.

 

            2.         CONTROL SYSTEM

 

CLOSED LOOP SYSTEM

            Closed loop system is a system that has a feedback loop or a control system that uses a feedback signal to generate the output.





OPEN LOOP SYSTEM

            This is a non-feedback controller.

           



 

Sunday, March 17, 2019

CNC MILLING MIRRORING AND SUBPROGRAM


Create the part program for below drawing using subprogram and Mirroring





What is Subprogram?

Subprograms are normal CNC program which are called from a program (normally called Main Program) to add some kind of repeatable machining operations.


Syntax:




Co –ordinate Points:



Program :
G21 G40 G94
G91
G28 X0 Y0 Z0
M03 S1500
G90
G00 X0 Y0 Z5
M98 P1111
M70
M98 P1111
M71
M98 P1111
M80
M98 P1111
M81
G01 Z5
M05
M30

O1111
G00 X10 Y10 Z5
G01 Z-5
G01 X30
G01 Y20
G03 X40 Y30 R10
G01 Y40
G01 X30
G03 X20 Y30 R10
G01 X10
G01 X10 Y10
G01 Z5
G00 X0 Y0
M99

See my video  narrated step by step for beginners in tamil.

Please subscribe to my channel WIN CADD for new tutorials and share to others.

Thank you for your support and have a great day.


CNC MILLING LINEAR AND CIRCULAR INTERPOLATION


Create the part program for below showing diagram (linear and circular interpolation)




Diagram with co-ordinate points.




Program:


G21
G98
G90
G28 X0 Z0
G28 Z0
M06 T1
G00 X-35 Y-35 Z5
G01 Z-5 F50
G01 X-35 Y35
G01 X25 Y35
G01 X35 Y25
G01 X35 Y-35
G01 X10 Y-35
G03 X-10 Y-35 R10
G01 X-35 Y-35
G00 Z5
G28 X0 Y0 Z0
M05
M30


See my video  narrated step by step for beginners in tamil.
Please subscribe to my channel WIN CADD for new tutorials and share to others.

Thank you for your support and have a great day.

Monday, February 18, 2019

CNC PROGRAM (LINEAR,CIRCULAR AND GROOVING CYCLES)

How to create CNC Program for this Drawing?
(Linear,circular interpolation and Grooving Cycle)




G75 GROOVING CYCLE SYNTAX


G75 R_
G75 X_Z_P_Q_R_F_

R -> Retract distance in mm (x direction)
X -> Grooving diameter in mm
Z -> Grooving Length in mm 
(Length between work zero and end of groove)
P -> Depth of cut in micron(X direction)
Q -> Depth of cut in micron (Z direction)
R -> Relif amount of the tool at the cuuting bottom

F -> Feed rate in mm

Program

G21
G98
M06 T1
M03 S1500
G00 X30 Z0
G71 U1 R0.5
G71 P1 Q2 U0.5 W0.5 F70
N1 G01 X0 Z0 
G03 X15 Z-7.5 R7.5
G01 X15 Z-15
G02 X25 Z-20 R5
G01 X25 Z-35
N2 G01 X30 Z-35
G70 P1 Q2 F10
M05
M06 T2
M03 S750
G00 X30 Z-32
G75 R1
G75 X15 Z-35 P1000 Q250 F30
G00 X30 Z0
M05

M30



See my video narrated step by step for beginners in tamil.

Please subscribe to my channel WIN CADD for new tutorials and share to others.

Thank you for your support and have a great day.

Sunday, February 10, 2019

CNC PROGRAM

How to write  CNC  Program for this Drawing?





co- ordinate  points :



Program:

G21
G98
M06 T1
M03 S1500
G00 X30 Z0
G71 U1 R0.5
G71 P1 Q2 U0.5 W0.5 F70
N1 G01 X0 Z0 
G03 X15 Z-7.5 R7.5
G01 X15 Z-15
G02 X25 Z-20 R5
G01 X25 Z-30
N2 G01 X30 Z-35
G70 P1 Q2 F10
M05

M30


See my video how to simulate the above program narrated step by step for beginners in tamil.

Please subscribe to my channel WIN CADD for new tutorials and share to others.

Thank you for your support and have a great day.


Monday, January 28, 2019

How to create doors and windows in the civil plan?


How to create doors and windows in the civil plan?




Procedure:

1.      Open part1 drawing
2.      Door size is length 3’ and width 9” and window size is 4’in length and 9” in width.
3.      Use line, offset,trim, extend command to draw doors and windows as shown in below video.


See my video how to draw doors and windows narrated step by step for beginners in tamil.

Please subscribe to my channel WIN CADD for new tutorials and share to others.

Thank you for your support and have a great day.

Wednesday, January 23, 2019

How to draw simple 2D civil drawing in AutoCAD?

How to draw simple 2D  civil drawing  in AutoCAD?







Procedure:

1.      Open New drawing in imperial mode.
2.      Use units command
3.      Set limits
4.      Use line, offset,trim, extend command to draw plan


See my video how to draw simple 2D drawing  in AutoCAD narrated step by step for beginners.



Please subscribe to my channel WIN CADD for new tutorials.

Thank you for your support and have a great day