Nghiên cứu phát triển phần mềm chuyển đổi mã STEP NC (ISO 14649) sang mã NC (ISO 6983)

vi

MC LC
TRANG


 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 vi
 ix
Chng 1:TNG QUAN Error! Bookmark not defined.
1 Error! Bookmark not defined.
1.1.1 : Error! Bookmark not defined.
-NC Error! Bookmark not defined.
1.1.2.1 Ni dung Error! Bookmark not defined.
1.1.2.2 Mi quan h gia STEP và STEP-NC Error! Bookmark not defined.
1.1.2.3 Mô hình d liu STEP-NC Error! Bookmark not defined.
1.1.2.4 H thng STEP-NC Error! Bookmark not defined.
1.1.2.5 Các kiu STEP-NC Error! Bookmark not defined.
-NC: Error! Bookmark not defined.
1.1.3.1 Mô hình ng dng STEP-NC trong k thut to mu nhanh (ropid
prototyping) 8
1.1.3.2 Mô hình ng dng STEP-NC  công ty Steptools 9
 Error! Bookmark not defined.
 Error! Bookmark not defined.
1.2.2 Nghiê Error! Bookmark not defined.
 Error! Bookmark not defined.
 12
-NC: Error! Bookmark not defined.

1. Error! Bookmark not defined.
1.4.1  Error! Bookmark not defined.
 Error! Bookmark not defined.
vii

1. Error! Bookmark not defined.
Chng 2: C S Lụ THUYT Error! Bookmark not defined.
-NC: . Error! Bookmark not defined.
-NC Error! Bookmark not defined.
2.2.1 hearder [3] Error! Bookmark not defined.
2.2.2  [3] Error! Bookmark not defined.
2.2.3 Error! Bookmark not defined.
 Error! Bookmark not defined.
2.2.5 Thông tin v phôi (workpiece) Error! Bookmark not defined.
2.2.6  20
ng dn k thut: 21
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
nh: Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
-NC: 30
Chng 3: GII THUT CÔNG C PHN MM CHUYN ĐI Error!
Bookmark not defined.
3 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.

 Error! Bookmark not defined.
Chng 4: THC HIN VĨ KIM NGHIM 50
 : 50
 Error! Bookmark not defined.
 60
 Error! Bookmark not defined.
viii

 Error! Bookmark not defined.
Chng 5: KT LUN VĨ HNG PHỄT TRIN CA Đ TÀI 61
 61
 61
 62





ix

DANH MC CỄC HỊNH
TRANG

-NC [7] Error! Bookmark not defined.
 Error! Bookmark not defined.
-NC [4] Error! Bookmark not defined.
 -NC Error! Bookmark not defined.
 Error! Bookmark not defined.
- Error! Bookmark not defined.
-NC Error! Bookmark not defined.

- Error! Bookmark not
defined.
-code [2] Error! Bookmark not defined.

Error! Bookmark not defined.
-NC [2] Error! Bookmark not defined.
-NC Error! Bookmark not defined.
-NC Error! Bookmark
not defined.
-NC Error! Bookmark
not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
Hình 2.8: T Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
Hì Error! Bookmark not defined.
 Error! Bookmark not defined.
 Error! Bookmark not defined.
x

Hình -NC Error! Bookmark not
defined.
 Error! Bookmark not
defined.

Error! Bookmark not defined.
 
Error! Bookmark not defined.


Error! Bookmark not defined.

Error! Bookmark not defined.

1

Chng 1
TNG QUAN
1.1 Tng quan chung v lƿnh vc nghiên cu:
1.1.1 Đ̣t v́n đ:
g







 -NC.  











 cùng 



. 
 





 
tin -NC nêu trên. C



  :
 

 





 STEP-NC
 








 -

-Code.




 STEP-





 -NC
 -NC
1.1.2 Gii thiu STEP-NC





            


 
-






2



-

 
                

 

        -



 



-
         

máy và c-

         

trình STEP-



 [4]
     

3



-
-

              
 [4]
1.1.2.1 Ni dung
STEP-
và máy CNC. Mã G-

 


     
      -

            -NC còn
thông tin thiết lập như mô hình hình học, quá trình lập kế hoạch.
STEP-NC cho phép bỏ qua các hệ thống CAM 



STEP-    tích hợp giữa thông tin thiết kế và
thông tin sản xuất
[10]
1.1.2.2 Mi quan h gia STEP và STEP-NC
STEP-         
CNC, hình 1.1 -NC (ISO 14649).


4

            

10303 Part 28 cho XML.

Hình 1.1: Mối quan hệ giữa STEP và STEP-NC [7]
STEP-          
Standardization Organization - 
 -
NC:
 
reference Model). [5]
 

STEP
 -





             -NC là AP203
-NC. [5]
5


Hình 1.2: Hệ sản xuất dựa trên STEP [6]

1.1.2.3 Mô hình d liu STEP-NC
- [6]
 Part 1 
 Part 2 : 
 Part 3 
 Part 9 
 Part 10 
 Part 11 
 
 Part 12 
 Part 13 
 Part 50 
 Part 51 
 Part 52 
 Part 53 


6

1.1.2.4 H thng STEP-NC
STEP-NC 
    
CAD/CAPP/CAM -


1
CAD, CSDL CAPP, và CSDL CAM.

 

Hình 1.3: Kiến trúc giao diện STEP-NC [4]
-

 

 

 
Soft-


1

7



 
trình STEP-NC.

Hình 1.4: Quan hệ những công nghệ STEP-NC
1.1.2.5 Các kiu STEP-NC
-
--NC:[11]

 
 
 

-
 

-NC, 
và              

8

                 

minh i ngoài -


g thông tin thông




1.1.3 ng dng ca STEP-NC:
1.1.3.1 Mô hình ng dng STEP-NC trong k thut to mu nhanh (ropid
prototyping)
 ên STEP _NC
 :

Hình 1.5: Mô hình sản xuất nhanh ở Hàn Quốc

9

1.1.3.2 Mô hình ng dng STEP-NC  công ty Steptools:
 


Hình 1.6: Mô hình ứng dụng STEP-NC ở Steptools [4]

-

G-
 

Hình 1.7: Hiệu quả thu được từ STEP-NC

 
 
 

 
 

10

 -NC:


Hình 1.8: Các giai đoạn ứng dụng STEP-NC ở Steptool [4]

1.2 Tình hình nghiên cu trong vƠ ngoƠi nc:
1.2.1 Nghiên cu ngoƠi nc:
 -
 D án STEP-NC Châu Âu:
ISO 1  t     -     
công   ARM và
Part 2l-formal [WZL RWTHAachen]
 D án STEP-NC IMS:
- 
âu và -2004 [WZL RWTH Aachen]
i tn STEP-NC
 D án mô hình cao ćp:
 
.Trao
 
 Báo cáo v STEP Ắ NC AP 2381 đu tiên  M:
11



.
 Báo cáo nhng li ích ca AP238:

 
- 

ng Gibbs CAM 
ng STEP-Machine sinh ra mã G thì
mt 15 phút. 
-CAM
 ISW-University of Stuttgart (Germany):

    u trình CAD-CAPP/CAM-   
 m 
-NC.
 POSTECH (South Korea):
-
   -   -       
-

1.2.2 Nghiên cu trong nc:
STEP-

-


 Có

12

- -
.       
-t phay và  . 


 [2]
-  p quy trình công n -
NC  
   STEP-NC; X          
STEP/STEP--NC machine. 
t
 [3]
-  -
KS.2012

1.3 Tính ćp thit ca đ tƠi:
1.3.1 Nhng nhc đim ca tiêu chuẩn ISO 6983:




Hình 1.9: Nhược điểm của NC-code [2]


13

 -Processing):
-c


            


 -



mã G- ánh thô
 
 
c- 

 

.
 
 

 g gia công (features)
1.3.2 u đim ca STEP-NC:
 

 
 
 
 t
 
14

 
 hách hàng.
-
(G-
 
-


-NC sang
mã NC-














Hình 1.10: So sánh mô hình CAD/CAPP/CAM giữa ISO 6983 với ISO 14649 [5]
1.4 Nhim v đ tƠi vƠ phm vi nghiên cu:
1.4.1 Nhim v đ tƠi:
 -NC
 C
 -code.
  -
-Code.
 ong STEP-NC sang G-Code.
 -NC sang G-Code.
15

 -

-
công.
1.4.2.Phm vi nghiên cu:
 
 
1.5 Phng pháp nghiên cu:
 
 





















16

Chng 2
C S Lụ THUYT

2.1 Nghiên cu ću trúc mt chng trình STEP-NC:
-






















Hình 2.1: Cấu trúc chương trình STEP-NC [2]

2.2 Các thƠnh phn ca chng trình STEP-NC
2.2.1 Đi lng ―hearder‖: [3]



HEADER;
FILE_DESCRIPTION((''),'2;1');
FILE_DESCRIPTION((''),'2;1');
FILE_NAME(' VI_DU_GIA_CONG_STEP-
NC_TIEN ',
'2003-07-03T',('NGUYEN DINH NGHIA'),(''),
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;

#1= PROJECT('VI_DU_GIA_CONG_
STEP-,$,$);
/* PROJECT: bắt đầu một ct gia công */
#2= WORKPLAN('MAIN WORKPLAN',
(#3,$, $,$,$),$,#11,$);

#36= WORKPIECE('SIMPLE WORKPIECE'
,#37,0.01,$,$,$,());
#37= MATERIAL('ST-50','STEEL',(#38));

#29= MACHINING_WORKINGSTEP
('WS ROUGH CIRCULAR_FACE 2',#43,#5,#15);
#30= MACHINING_WORKINGSTEP
('WS FINISH CIRCULAR_FACE 2',#28,#5,#58);

#48= TURNING_MACHINE_FUNCTIONS
(.T.,$,$,(),.F.,$,$,(),$,$,$);

17

FILE_NAME(' VI_DU_GIA_CONG_STEP-NC_TIEN ','2003-07-
03T',('NGUYEN DINH
NGHIA'),(''),
'PRO/ENGINEER BY PARAMETRIC TECHNOLOGY CORPORATION,
2007450',
'PRO/ENGINEER BY PARAMETRIC TECHNOLOGY CORPORATION,
2007450','');
FILE_SCHEMA(('CONFIG_CONTROL_DESIGN'));
ENDSEC;
2.2.2 Đi lng ―project‖: [3]


công.
Project */
Project 

Cú pháp:
ENTITY project;
its_id: identifier;
main_workplan : workplan;
its_workpieces :SET [0:?] OF workpiece;
its_owner:OPTIONAL person_and_address;
its_release:OPTIONAL date_and_time;
its_status:OPTIONAL approval;
END_ENTITY;


Its_id: . 

main_workplan: 
its_workpieces: 
its _owner: 
its_release :
18

its_status :t





2.2.3.Đi lng ―workplan‖ vƠ ―executables‖:





 

Cú pháp:
ENTITY workplan
SUBTYPE OF (program_structure);
its_elements :LIST[0:?] OF executable;
its_channel: OPTIONAL channel;
its_setup:OPTIONAL setup;
its_effect:OPTIONAL in_process_geometry;

END_ENTITY;

its_elements :
its_setup: c




2.2.4 Đi lng ―machining workingstep‖


its_id= PROJECT('VI_DU_GIA_CONG_STEP-NC ',main_workplan,
its_workpieces,its_owner,its_release,its_status);

Its_id= WORKPLAN('MAIN WORKPLAN',its_elements,its_channel,
its_setup,its_effect,in_process_geometry);

19




Cú pháp:
ENTITY turning_workingstep
SUBTYPE OF (workingstep);
its_features : LIST [2:?] OF manufacturing_feature;
its_operation : turning_machining_operation;
its_effect : OPTIONAL in_process_geometry;
END_ENTITY;


its_feature : 
its_operation: h






2.2.5 Thông tin v phôi (workpiece)
Cú pháp:
ENTITY workpiece;
its_id : identifier;
its_material:OPTIONAL material;
global_tolerance: OPTIONAL length_measure;
its_rawpiece: OPTIONAL workpiece;
its_geometry:OPTIONAL shape_representation;
its_bounding_geometry : OPTIONALounding_geometry_select;
clamping_positions:SET [0:?] OF cartesian_point;
Its_id=TURNING_WORKINGSTEP(' its_featureits_operation,
its_effect);

20

END_ENTITY;

its_id: 
its_material: t
global_tolerance: 
its_rawpiece: phôi thô
its_geometry: 

 






2.2.6 Thông tin v vt liu (material)
Cú pháp:
ENTITY material;
standard_identifier: label;
material_identifier: label;
material_property : SET [0:?] OF property_parameter;
END_ENTITY;

standard_identifier :
hay công ty)
material_identifier: 
material_property: c









Its_id= WORKPIECE('SIMP
global_tolerance, global_tolerance, its_rawpiece,

its_geometry, its_bounding_geometry);


global_tolerance, global_tolerance, its_rawpiece,
its_geometry, its_bounding_geometry);