Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
1999-05-20
2003-02-18
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S183000, C700S185000, C700S186000, C700S192000, C700S193000, C700S195000
Reexamination Certificate
active
06522941
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a three dimensional linear processing machine, capable of performing three dimensional machining on a pipe or the like, such as a gas cutting machine, a plasma cutting machine and a three dimensional laser beam machine, and a method of composing and controlling machining program in the three dimensional linear processing machine.
As this kind of the three dimensional processing machine, for instance, a three dimensional laser beam machine, where the direction of a torch injecting laser beam is three dimensionally adjustable, is known. By using this three dimensional laser beam machine, cutting machining on a solid workpiece, such as a pipe, that is, three dimensional cutting machining, can be performed, adding to a plate-shaped workpiece. Three dimensional machining, for instance, cutting a pipe or punching a hole at the side portion of a pipe, is possible. When three dimensional cutting machining on a pipe is performed with such a three dimensional laser beam machine, machining is performed by setting and holding a pipe by a chuck provided on a table side in many cases.
However, in order to compose a machining program necessary for performing three dimensional cutting machining with the above-mentioned three dimensional laser beam machine, it is necessary to designate three dimensional machining route (to be concrete, the route for moving a top end of a torch). In a conventional way, such a machining route is designated by computing with complex calculation or by memorizing shapes by teaching. Furthermore, the method of composing the above-mentioned machining program by a CAD/CAM machine or the like separately provided from the three dimensional laser beam machine is also known. In this method, the final machining form of a workpiece is composed as three dimensional data, machining route is computed by this three dimensional data, and the machining program is composed on the basis of the computed machining route with a CAD/CAM machine or the like. However, long time is necessary for complex calculation or teaching, and skill is also necessary. Besides, the method with the CAD/CAM machine or the like is also inconvenient since it is necessary to provide the CAD/CAM machine or the like separately from the three dimensional laser beam machine.
Besides, when a pipe is set by a chuck, it is necessary to position the central axis of the pipe at a machine center (the axial center of the chuck). But, this positioning operation is difficult to correctly perform. Then, it is necessary to amend the shift of a pipe for correct machining. But, in a conventional three dimensional laser beam machine, such amendment is not easily performed. Even if the machining program is easily composed, performing correct machining by executing this machining program actually is not easy.
OBJECT OF THE INVENTION
Taking the above-mentioned circumstance into consideration, the object of the present invention is to provide a three dimensional linear processing machine and a method of composing and controlling machining program in the three dimensional linear processing machine, where long time or skill is not necessary for composing machining program, a CAD/CAM machine is not necessary to separately provide, the amendment of shift of a workpiece can be easily performed, then the operations from composing machining program to actual machining can be correctly and easily performed.
SUMMARY OF THE INVENTION
Of the present invention, the 1st invention is a three dimensional linear processing machine capable of performing a three dimensional linear machining, such as a three dimensional laser cutting machining, on a pipe, such as workpiece
60
,
61
, comprising:
a pipe rotating and holding means, such as a chuck
10
, capable of positioning and holding the pipe to be machined at any rotational angle position around an axial center of the pipe;
a first memory means, such as a graphic data memory
32
, storing machining modes concerning said pipe classified into a plurality of shape patterns, such as a shape pattern KPT, by machining shape;
a second memory means, such as an image information memory
30
, storing dimensional data items, such as longitudinal dimension H, lateral dimension W, angle Q, length L and diameter D, necessary for machining of said shape pattern concerning respective shape patterns classified by said machining shape;
a display, such as a display
23
;
a shape pattern display control means, such as an image control portion
27
and an image information memory
30
, for displaying said plurality of shape patterns on said display, selectable by an operator;
an input means of said shape pattern, such as a keyboard
22
;
a dimensional data display control means, such as an image control portion
27
, for displaying on said display by selecting dimensional data item concerning said input shape pattern from said dimensional data items stored in said second memory means concerning a specific shape pattern input from said input means of said shape pattern;
an input means of dimensional data, such as a keyboard
22
, capable of inputting dimensional data, such as a code parameter CP, corresponding to the dimensional data item on the basis of said dimensional data item displayed on said display;
a linear machining program composing means, a programming composing control portion
26
, a solid data producing portion
31
, a program computing and composing portion
35
, for composing three dimensional laser machining program, such as a machining program PRO, concerning said pipe to be machined on the basis of said dimensional data corresponding to the input dimensional data item and said input shape pattern;
a third memory means, such as a shift quantity detecting program memory
39
, for storing a shift quantity detecting program, such as a shift quantity detecting program ZPR, for measuring installation position shift quantity of said pipe, such as a shift quantity in a longitudinal direction TMz and a shift quantity in a lateral direction TMy, with respect to said pipe rotating and holding means when said pipe to be machined is installed on said pipe rotating and holding means;
an installation position shift quantity measuring means, such as a torch
15
, a shift quantity detecting operation control portion
37
, a driving control portion
40
, a moving and driving machine
40
a
, a movement quantity measuring means
40
b
, a movement quantity computing portion
41
, a shift quantity computing portion
42
, an arrival judgment portion
43
, a coordinate position detecting portion
51
, a coordinate position memory
52
and a distance sensor
70
, for reading out said shift quantity detecting program stored in said third memory means and for measuring installation position shift quantity of said pipe held by said pipe rotating and holding means; and
a machining control means, such as a driving control portion
40
, a machining control portion
46
, a laser generating control portion
47
and a program reading amendment, portion
49
for executing said three dimensional linear machining program concerning said pipe to be machined composed by said linear machining program composing means on the basis of measuring result of said installation position shift quantity measuring means, amending said installation position shift quantity by said pipe rotating and holding means, and for machining said pipe to be machined held by said pipe rotating and holding means.
Accordingly, when a machining program is composed, an operator can intuitively, visually, easily select shape patterns corresponding to a machining mode of a pipe to be machined watching a plurality of shape patterns displayed on the display. Furthermore, since the dimensional data items concerning the shape pattern are displayed on the display by inputting specific shape pattern corresponding to the machining mode through the input means of the shape pattern, it is possible to correctly acknowledge the dimensional data item necessary for inputting dimensional data, watching this display, and to i
Furuhashi Ryoichi
Iryoda Hikaru
Kumazaki Hitoshi
Tashiro Minoru
Gilly Richard P.
Wolf Block Schorr and Solis-Cohen LLP
Yamazaki Mazak Kabushiki Kaisha
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