Theory and Design of CNC Systems Part 2 doc

... System Open Application Fig. 1. 12 The construction of CNC 2. 3 Main CNC System Functions 45 Y X G17 G 02 G03 X Z G18 G 02 G03 Z Y G19 G 02 G03 Fig. 2. 8 CW and CCW directions for the XY, ZX and YZ planes The 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 t...

Ngày tải lên: 11/08/2014, 20:21

... specifying part shape, 29 5 milling cycle, 29 8 milling machines, 3 MMC, 33, 34 MMI, 21 , 22 , 28 , 29 , 27 1 28 6, 28 8–311, 313 MMI – monitoring and alarm functions, 23 MMI – operation functions, 22 MMI ... 320 programming language, 23 2, 23 4, 24 2, 24 4, 24 5 programming method comparison, 28 4 programming methods, 29 9, 300 programming model, 24 4 programming pro...

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... ImplementationofanAcc/DecController 21 5 6.3.3 Implementation of the Rough Interpolator. 22 2 6.3.4 The Mapping Module . . 22 5 6.4 Summary 22 6 Part II Open-architectural Soft CNC Systems 7 Programmable Logic Control 22 9 7.1 ... Open CNC 353 10.1 Introduction . . 353 10 .2 DesignofSoftwareArchitecture 356 10 .2. 1 CNCSystemModeling 356 10.3 DesignofSoft-NCSystem 359 10.3.1...

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... Y yes yes no no Q1=Q1+P1 Q1≥R Q2=Q2+P2 Q2≥R yes yes no no Q1=Q1 R Q2=Q2 R P1=P1 1 P2=P2+1 Pulse to X Pulse to Y Q1=Q1+A Fig. 3.7 Software DDA interpolator ment 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 F10 N 120 K0. X-1.6544 Z 23 13 N130 K0. X-1.57 52 Z 22 25 N140 K0. X-1.4053 Z 20 67 N150 K.0313 X-1.3031 Z 19 82 N160...

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... −2sinwt cos 2 w τ 2 + 2coswt sin w τ 2 cos w τ 2 } = K w 2 {2sinw(t − τ 2 ) −2sinw(t − τ 2 )cos w τ 2 } (4. 42) = K w 2 2(1 −cos w τ 2 sint − τ 2 = 8 w 2 τ 2 (1 −cos w τ 2 )(−Rw)sin(t − w τ 2 ) W x (t) ... average. 15 6789 10 4 321 211 1314 15 16171819 20 21 22 23 24 25 26 27 28 2 4 6 2 4 a(j) Mcmd(n) 0 29 30 Fig. 3.18 Linear fine interpolation Figu...

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... − A a e −at + 1 w  B 2 + C 2 w 2 sin(wt − θ ) (4.48a) where θ = cos −1   B 2 + C 2 w 2  R  =  B 2 + C 2 w 2 = B  1 + a 2 w 2 = −wK w 2 + a 2  1 + a 2 w 2 (4.48b) = −K a 1  1 + w 2 a 2 = −R 1  1 + w 2 a 2 As ... F 1 · Z E1 −Z S1 L 1 , V X2 = F 2 · X E2 −X S2 L 2 ,V Y2 = F 2 · Y E2 −Y S2 L 2 ,V Z2 = F 2 · Z E2 −Z S2 L 2 , (4.89) where...

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... K R )K C  T 2 i ω 2 0 + 1  T 2 d ω 2 0 + 1 T i ω 2 0  α 2 T 2 d ω 2 0 + 1 (5 .20 ) 194 6 Numerical Control Kernel At 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 177 G(z)=a 0 z 2 + a 1 z −1 + a 2 (5 .29 ) where, a 0 = V 3 T 2 , a 1...

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... Programming 23 9 X00.0 MPG Selection F05.0 CNC Ready X00.1 X00 .2 X00.3 X00.4 X00.5 X00.6 X00.7 X01.0 X01.1 X01 .2 X01.3 X01.4 X01.5 X01.6 X01.7 X 02. 0 X 02. 1 X 02. 2 X 02. 3 X 02. 4 X 02. 5 X 02. 6 X 02. 7 +X axis ... Interlock Y00.0 Y00.1 Y00 .2 Y00.3 Y00.4 Y00.5 Y00.6 Y00.7 Y01.0 Y01.1 Y01 .2 Y01.3 Y01.4 Y01.5 Y01.6 Y01.7 Y 02. 0 Y 02. 1 Y 02. 2 Y 02. 3 Y 02. 4 Y 02. 5 Y 02. 6 Y 0...

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... 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 CU...

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... P 12, P 22, and P 32 are as follows. P 12: D, E P 22: G, E P 32: J, K After 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, B P21: A, F P31: H, I In Fig. 8.30, P 12, P 22, and P 32 are the part programs that should be executed after using the common tool and...

Ngày tải lên: 11/08/2014, 20:21