Theory and Design of CNC Systems Part 2 doc

... SystemOpenApplicationFig. 1. 12 The construction of CNC 2. 3 Main CNC System Functions 45YXG17G 02 G03XZG18G 02 G03ZYG19G 02 G03Fig. 2. 8 CW and CCW directions for the XY, ZX and YZ planesThe end point of an ... func-tion of the CNC and the part program are slightly different for each CNC maker,the program manual should be referenced to ﬁnd out the detailed functions of anyparticular CNC. 2. 2 Part ProgramAlthough ... Coolant: command coolant on or off. (2) Start/End of a main and sub program: inform thebeginning and end of a part program.(3) Spindle: command a spindle to rotate in CCW or CWdirection and specify...

Theory and Design of CNC Systems Part 14 potx

... specifying part shape, 29 5milling cycle, 29 8milling machines, 3MMC, 33, 34MMI, 21 , 22 , 28 , 29 , 27 1 28 6, 28 8–311, 313MMI – monitoring and alarm functions, 23 MMI – operation functions, 22 MMI ... 320 programming language, 23 2, 23 4, 24 2, 24 4, 24 5programming method comparison, 28 4programming methods, 29 9, 300programming model, 24 4programming procedure, 29 2proportional control, 1 62, ... 27 29 , 22 9 25 0, 25 3 26 9, 28 4PLC – Executer, 27 PLC – loader, 27 PLC – program tasks, 364PLC –programmer, 27 PLC compiler, 23 3PLC conﬁguration elements, 24 8PLC element, 23 0PLC function, 25 PLC...

Theory and Design of CNC Systems Part 1 pps

... ImplementationofanAcc/DecController 21 56.3.3 Implementation of the Rough Interpolator. 22 26.3.4 The Mapping Module . . 22 56.4 Summary 22 6 Part II Open-architectural Soft CNC Systems 7 Programmable Logic Control 22 97.1 ... Open CNC 35310.1 Introduction . . 35310 .2 DesignofSoftwareArchitecture 35610 .2. 1 CNCSystemModeling 35610.3 DesignofSoft-NCSystem 35910.3.1 Design of Task Module . 35910.3 .2 DesignoftheSystemKernel ... AreaforStatusDisplay 27 18.1 .2 Area for Data Input 27 38.1.3 AreaforMPGHandling 27 38.1.4 AreaforMachineOperation 27 38 .2 StructureoftheMMISystem 27 58.3 CNCProgramming 27 88.3.1 TheSequenceofPartProgramming 27 88.3.2...

Theory and Design of CNC Systems Part 3 ppsx

... YyesyesnonoQ1=Q1+P1Q1≥RQ2=Q2+P2Q2≥Ryes yesnonoQ1=Q1 RQ2=Q2 RP1=P1 1P2=P2+1Pulse to XPulse to YQ1=Q1+AFig. 3.7 Software DDA interpolatorment of the X-andY-axes, and the initial value of variables Q1 and ... G06 .2 P4 K0. X-1.6953 Y 75 Z 23 58 F10N 120 K0. X-1.6544 Z 23 13N130 K0. X-1.57 52 Z 22 25N140 K0. X-1.4053 Z 20 67N150 K.0313 X-1.3031 Z 19 82 N160 K.0781 X-1. 121 5 Z 1847 N300 K.9063 X1.7085 Z 23 73N310 ... pointKnotWeight (Small amount of dada)Maximum machining errorFig. 2. 24 Indirect and direct NURBS interpolation3.3 Software Interpolator 79Q2=Q2+BQ1≥LQ2≥LQ1=Q1 LQ2=Q2 LPulse to XPulse to...

Theory and Design of CNC Systems Part 4 potx

... −2sinwt cos 2 wτ 2 + 2coswt sinwτ 2 coswτ 2 }=Kw 2 {2sinw(t −τ 2 ) −2sinw(t −τ 2 )coswτ 2 } (4. 42) =Kw 2 2(1 −coswτ 2 sint −τ 2 =8w 2 τ 2 (1 −coswτ 2 )(−Rw)sin(t −wτ 2 )Wx(t) ... average.156789104 321 211 13141516171819 20 21 22 23 24 25 26 27 28 2 46 2 4a(j)Mcmd(n)0 29 30Fig. 3.18 Linear ﬁne interpolationFigure 3.19 shows the moving average of the pulse train shown in Fig. 3.18 and Table ... −1wsinwt} 2{ t −τ 2 sinw(t −τ 2 }+{t −τ−1wsinw(t −τ)}] (4.41)Equation 4.41 is simpliﬁed as Eq. 4. 42. Wx(t)=Kw 2 {−sinwt +2sinw(t −τ 2 ) −sinw(t −τ)}=Kw 2 {2sinw(t −τ 2 ) −2sinwt...

Theory and Design of CNC Systems Part 5 potx

... −Aae−at+1wB 2 +C 2 w 2 sin(wt −θ) (4.48a)whereθ= cos−1B 2 +C 2 w 2 R=B 2 +C 2 w 2 = B1 +a 2 w 2 =−wKw 2 + a 2 1 +a 2 w 2 (4.48b)=−Ka11 +w 2 a 2 = −R11 +w 2 a 2 As ... F1·ZE1−ZS1L1,VX2= F 2 ·XE2−XS2L 2 ,VY2= F 2 ·YE2−YS2L 2 ,VZ2= F 2 ·ZE2−ZS2L 2 ,(4.89)where VAiis the A-axis component of velocity of block Ni,Liis the length of block NiThe difference ... Eq. 4.80.F 2 max2A+F 2 max−F 2 2D= L1(4.79)F 2 max−F 2 2A+F 2 max2D= L 2 (4.80)If Fis F 2 , the acceleration time of Block N1, TA1, is calculated by Eq. 4.81 and the deceleration...

Theory and Design of CNC Systems Part 6 pptx

... KR)KCT 2 iω 2 0+ 1T 2 dω 2 0+ 1Tiω 2 0α 2 T 2 dω 2 0+ 1(5 .20 )194 6 Numerical Control KernelAt ﬁrst, the feedrate is selected depending on the G-code type and the length of the ... because of the signiﬁcant ﬁgures of numerical computation on a com-5.4 Position Control 177G(z)=a0z 2 + a1z−1+ a 2 (5 .29 )where, a0=V3T 2 , a1= −V 2 T−2V3T 2 , a 2 = 1+V 2 T+V3T 2 The ... execution algo-rithms and implementation by pseudo-code. In this chapter, only the design of NCKwill be described and the overall design of the CNC system where the PLC and MMIunits are included...

Theory and Design of CNC Systems Part 8 ppsx

... Programming 23 9X00.0 MPG SelectionF05.0 CNC ReadyX00.1X00 .2 X00.3X00.4X00.5X00.6X00.7X01.0X01.1X01 .2 X01.3X01.4X01.5X01.6X01.7X 02. 0X 02. 1X 02. 2X 02. 3X 02. 4X 02. 5X 02. 6X 02. 7+X axis ... InterlockY00.0Y00.1Y00 .2 Y00.3Y00.4Y00.5Y00.6Y00.7Y01.0Y01.1Y01 .2 Y01.3Y01.4Y01.5Y01.6Y01.7Y 02. 0Y 02. 1Y 02. 2Y 02. 3Y 02. 4Y 02. 5Y 02. 6Y 02. 7Spindle CWSpindle CCWChuck ClampChuck UnlampServo(on/off)Hybraulic ... the values of the leftoperand and the middle operand and store the result to the rightoperand.Division DIV 4, 2, Y2 .2 When the input signal is ON, div-ide the value of the left operand bythe...

Theory and Design of CNC Systems Part 9 potx

... Handle mode, Incremental Moving mode, and Rapid Mov-ing mode. 28 2 8 Man–Machine Interface CLPRNT LI 82 =LINE/6 .25 ,-1.0 ,2. 0,0 .25 ,-1.0 ,2. 0 LI83 =LINE/0 .25 ,-1.0 ,2. 0 ,2. 0,3.5 ,2. 0 LI84 =LINE /2. 0,3.5 ,2. 0,6.7 525 ,1.1319 ,2. 0 ... =LINE /2. 0,3.5 ,2. 0,6.7 525 ,1.1319 ,2. 0 CI58 =CIRCLE/6 .25 07,0. 125 ,2. 0,1. 125 LI85 =LINE/6 .25 07,-1.0 ,2. 0,6 .25 ,-1.0 ,2. 0 CUTTER/0 .25 ,0.05,0.075,0.05,0.0,0.0,4.0 COOLNT/ON SPINDL/ 120 0 FEDRAT/1.0 ... Mode and Cutting Feature [1] Mode: BAR, CNR [2] Mode: THR [3] Mode: GVR [4] Mode: DRL [5] Mode: TAP1. #0 2. #1 3. #2 1. #0 2. #1 3. #2 1. #0 2. #1 3. #2 1. #0 2. #1 3. #2 1. #0 2. #1 3. #2 4....

Theory and Design of CNC Systems Part 10 pot

... P 12, P 22, and P 32 are as follows.P 12: D, EP 22: G, EP 32: J, KAfter that, the above steps are repeated until no shared tool is found in P11, P21,P31, P 12, P 22, and P 32, 8.6 Development of the ... P21, and P31 are as follows.P11: A, BP21: A, FP31: H, IIn Fig. 8.30, P 12, P 22, and P 32 are the part programs that should be executed afterusing the common tool and the tools used in P 12, ... depth d ,and nishingallowance k. The details of the algorithm can be summarized, with Fig. 8 .28 , asfollows:(c)(a)(b)dA(Q0)Q2Q1mBBQ1(q1x,q1z)Q2(q2x,q2z)L3L4A(Q0)L5L2L1Fig. 8 .28 ...

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