Theory and Design of CNC Systems Part 8 ppsx
Theory and Design of CNC Systems Part 8 ppsx
... methods and the
method of designing a soft PLC system will be described together with design of
Soft-NC in the later in this textbook. In Soft-NC, a PC is used as the hardware plat-
form and all CNC ... Soft NC, Soft NC and
Soft PLC can be regarded as the same system. Soft PLC which is made by a user
interface and the PLC kernel based on the IEC1131-3 can be regarded as partia...
Theory and Design of CNC Systems Part 3 ppsx
... the interpreter of the CNC system is the soft-
ware module of the NCK unit that interprets the part program consisting of G&M-
code commands and related addresses such as S, T, and F. The interpreter ... –17 6 9 4 9
6 6 1 –17 5 9 5 9
7 –11 11 –15 5 8 5 8
8 0 13 –15 4 8 6 8
9 13 15 –15 3 8 7 8
10 –2 15 –13 3 7 7 7
11 13 17 –13 2 7 8 7
12 0 17 –11 2 6 8 6
13 17...
Theory and Design of CNC Systems Part 14 potx
... 41
G 58, 41
G59, 41
G61, 48, 126
G62, 49
G63, 49
G64, 48, 49, 126
G 68, 42
G70, 54
G71, 54
G72, 54
G73, 54
G74, 54
G75, 54
G76, 54
G80, 54
G81, 54
G82, 54
G83, 54
G84, 54
G84.2, 54
G84.3, 54
G85, ... 157
ADCAI, 107–1 28, 187
ADCBI, 107, 1 08, 1 28 155, 187 , 211
ADCBI-type NCK – architecture, 211
address, 237
aging, 3 28
AGV, 4
AIM, 404
and – AND, 260
and not – ANDN, 261
and stack –...
Theory and Design of CNC Systems Part 1 pps
... 271
8. 1.2 Area for Data Input 273
8. 1.3 AreaforMPGHandling 273
8. 1.4 AreaforMachineOperation 273
8. 2 StructureoftheMMISystem 275
8. 3 CNCProgramming 2 78
8.3.1 TheSequenceofPartProgramming 2 78
8.3.2 ... Open CNC 353
10.1 Introduction . . 353
10.2 DesignofSoftwareArchitecture 356
10.2.1 CNCSystemModeling 356
10.3 DesignofSoft-NCSystem 359
10.3.1 Design of Task Module . 359
10...
Theory and Design of CNC Systems Part 2 doc
... the concept of Soft-NC is
applied. The CNC shown in Fig. 1.19 is designed based on the concept of modular-
ization, standardization, and distributed processing and uses STEP-compatible part
programs ... representative indicator
that shows the design concept and the functional aspect of a CNC and is a big part of
33
26 1 Introduction to NC Systems
System
memory
Par...
Theory and Design of CNC Systems Part 4 potx
... 30 6
4 10 0 40 8
5 0 0 40 8
6 0 10 30 6
7 0 10 20 4
8 0 10 10 2
9 0 10 0 0
Σ
40 48
As shown in Table 4.2, the maximum value of output pulses is 8 and this is less
than the number of input pulses, ... to smooth the movement of a machine, the acceleration and deceleration for
the movementof the machineaxes should be controlled. For CNC systems, two kinds
of Acceleration...
Theory and Design of CNC Systems Part 5 potx
... method of minimizing the reduction of feedrate was introduced by considering the
commanded feedrate and the length of the successive blocks.
X (mm)
Y (mm)
-10 -8 -6 -4 -2 0 2 4 6 8 10
-2
0
2
4
6
8
10
12
Fig. ... Acceleration and Deceleration
trajectory is inversely proportional to the feedrate and sudden changes of feedrate
result in reduction of accuracy of the CNC e...
Theory and Design of CNC Systems Part 6 pptx
... execution algo-
rithms and implementation by pseudo-code. In this chapter, only the design of NCK
will be described and the overall design of the CNC system where the PLC and MMI
units are included ... (n=1,200)
pos
command(n)=10.0-real(n)*0.02; /Generation of position/
/command for simulation/
pos
command (n+100) =8. 0+real(n)*0.02;
end / Position control loop /
begin (n=1,...
Theory and Design of CNC Systems Part 9 potx
... task
is called CNC programming.
8. 3.1 The Sequence of Part Programming
Roughly, CNC programming is composed of the generation of a process plan from
a part drawing and the generation of the part program. ... TANTO,CI 58
GOFWD/CI 58, TANTO,LI85
THICK/0.0,0.13,0.0
GOFWD/LI85,ON,(LINE/(POINT/6.25,-1.255,1.0),PERPTO,(LINE/$
6.2507,-1.255,1.0,6.25,-1.255,1.0))
THICK/0.0,...
Theory and Design of CNC Systems Part 10 pot
... sequence of lines or arcs and is used for visual verification of the toolpath of a
part program (see Fig. 8. 19a). It provides the functions for checking for collisions
between tools and clamps and ... point of view. Furthermore, the design of
the system kernel, which plays the role of booting up the CNC system, terminating
the CNC system, communicating data and ev...
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