Mastercam后处理加工时间输出方法（方法二）

Mastercam后处理程序头输出加工时间--纯代码版方法。

此方法由官方提供，其原理利用了mill.set文件及buffer的方式来实现。

实现的原理及过程如下：

首先利用后处理调用mp.dll及mill.set，获取加工时间，并把加工时间保存为doc文件。

其次正常后处理程序，并向后处理中写入一个标志字符串。

最后再后处理运行结束前利用buffer重读nc文件，并搜索标志字符串。

Mastercam后处理基于钻孔开发测头(探针)源代码

找到标志字符串后替换标志字符串，并回写刀程序中，即可完成程序头或任意地方出加工时间。

1：定义各项数据

# Define strings used in building up the command line parameters for the DLL call
sspace    : " "     # SPACE character
ssq       : "'"     # Single Quote character
sdq       : '"'     # Double Quote character
sdoc      : ".doc"  # .doc extension
spath_in  : ""      # Will be the "path\name" of the NCI input file
spath_out : ""      # Will be the "path\name" of the DOC output file
sparams   : ""      # Will be the command parameter line passed to the DLL

Mastercam后处理 3+2刀尖跟随计算源代码

2：定义mp.dll文件路径，此路径可用绝对路径，也可用相对路径

sdll      : "D:\Program Files\Mastercam 2022\Mastercam\apps\MP.dll"  # Name of the .DLL to be called - update path as needed

3：定义mill.set文件路径，此路径可用绝对路径，也可用相对路径

s_setfile : "C:\Users\Public\Documents\Shared Mastercam 2022\mill\Posts\Mill.set"  # Define the path and name of the .set file to be used.

4：定义保存时间数据的函数

# Define strings used to read cycle time from .set output and write it to .pst output
set_time    : ""   #String to hold cycle time read from setup sheet output - entire line from .set output
scycle_time : ""   #String to hold cycle time read from setup sheet output - time only, prefix stipped from set_time string
scycle_time_out : "(cycle_time_here)"  #Keyword - This will be output where cycle time output is desired, then replace with the cycle time during ppost$.

loc_found   : 0    #Flag to indicate that cycle time output location has been found.

5：定义buff1数据

# --------------------------------------------------------------------------
#Buffer 1, Doc file created by setup sheet
wc1           : 1       #Buffer 1 write counter
rc1           : 1       #Buffer 1 read counter
size1         : 0       #Buffer 1 size
string1 : ""            #Buffer 1
fbuf 1 0 256 1 1        #Buffer 1

6：定义buff2数据

#Buffer 2, NC file after posting
wc2           : 1       #Buffer 2 write counter
rc2           : 1       #Buffer 2 read counter
size2         : 0       #Buffer 2 size
string2 : ""            #Buffer 2

fbuf 2 1 256 1 1        #Buffer 2

7：在ppost$下完成整个加工时的获取，输出，回写到程序中

ppost$ # This posblock is call AFTER all the files from the PST run are closed!
      spath_in = spathnci$ + snamenci$ + sextnci$
      spath_out = spathnc$ + snamenc$ + sdoc
      sparams = ssq + sdq + spath_in + sdq + sspace + sdq + s_setfile + sdq + sspace + sdq + spath_out + sdq + ssq
      result = dll(sdll, sparams)
     sbufname1$ = spath_out
     size1 = rbuf(one, zero)
     rc1 = size1
     set_time = rbuf(one, rc1)
     end_str_ix$ = zero
     if end_str_ix$ = zero, result = strstr(":", set_time)
     if end_str_ix$ = zero, result = strstr("=", set_time)
     scycle_time = brksps(end_str_ix$, set_time)
     sbufname2$ = spathnc$ + snamenc$ + sextnc$
     while loc_found = zero,
       [
       string2 = rbuf(two, rc2)
       if string2 = scycle_time_out,
         [
         wc2 = rc2 - one
         scycle_time = sopen_prn + "CYCLE TIME =" + scycle_time + sclose_prn
         scycle_time = wbuf(two, wc2)
         loc_found = one
         ]
       ]

8:在psof$或其他任何想要输出加工时间的地方下面增加下面的代码。

psof$
  *scycle_time_out，e$
  
  
  
  
  GIF

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