Theory and Design of CNC Systems Part 10 pot
Theory and Design of CNC Systems Part 10 pot
... 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 events to the tasks, and switching ... minimized and in which the number of tool changes is minimized, verifying tool paths and the finished part, and estimating machining time based on the minimum user input...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 14 potx
... 26–29, 109 , 159, 187–226 NURBS, 59–61, 99 101 , 103 , 105 NURBS – interpolation, 59, 98, 99, 102 NURBS – interpolation algorithm, 101 NURBS – surface machining, 61 OAC, 30 of ine tasks, 4 offset ... Chung, D., Cheon, S. “Architecture and implementation of a shop-floor pro- gramming system for STEP-compliant CNC , Computer Aided Design, Vol. 35, pp. 106 9– 108 3, 2003. 141. Su...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 4 potx
... Output of Output of Output time: K Δ X(k) buffer register: Adder: S(k) Pulse: Δ X(k −5) Δ X 0 (k) 1 10 0 10 2 2 10 0 20 4 3 10 0 30 6 4 10 0 40 8 5 10 0 50 10 6 10 10 50 10 7 10 10 50 10 8 10 10 ... −1)+ Δ X(k) − Δ X(k −n) (4 .10) Δ X o (k)=S(k)/n ∆X(k) k 10 10 10 10 10 2 101 0 6 4 8 8 6 4 2 k 10 10 10 10 10 ∆X0(k) Fig. 4.6 Profiles Δ X = 10, ∑ Δ X =...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 5 potx
... 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 equipme...
Ngày tải lên: 11/08/2014, 20:21
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. ... used on the shop floor and has a good effect on productivity. In this text book, the design and development of Shopfloor Oriented Programming systems embedded...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 1 pps
... PC-NC and 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. 3.2 DesignoftheSystemKernel ... 341 9 .10 HardwareandOperatingSystems 344 9 .10. 1 Architecture of Multi-processing Hardware 344 9 .10. 2 Operating System Configuration 347 9 .10. 3 CNCSys...
Ngày tải lên: 11/08/2014, 20:21
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...
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Theory and Design of CNC Systems Part 3 ppsx
... algorithm and an example part program is below. The length unit of the example part program is BLU and a speed unit is BLU per second. G01 X0.Y10.F10 G02 G90 X10. Y0. I0. J -10. F10 The example part ... 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 s...
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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=...
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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...
Ngày tải lên: 11/08/2014, 20:21