JPS62176732A - Four shaft simultaneous manufacturing formation method on automatic programming - Google Patents

Abstract

PURPOSE:To reduce the time for preparing four shaft simultaneous manufacturing programming by dividing a manufacturing region according to input workpiece shape, raw material shape and tool data and by automatically forming four shaft simultaneous manufacturing data every a region. CONSTITUTION:When manufacturing information such as workpiece shape, raw material shape and tool data is input from a keyboard 2 as CRT 1 is being recognized, these data are memorized in an input data memory part 4 by means of an input data control part 3. Then, a divided point set part 5 automatically sets the point for dividing a manufacturing region in the direction of a longitudinal axis of a workpiece from workpiece shape and raw material shape, establishes a divided line of a manufacturing region from a set divided point in a shape divided set part 6, sets data such as workpiece shape, raw material shape, using tool information and cutting conditions to memorize in a divided data memory part 7. Accordingly, preparing of four shaft simultaneous manufacturing program is performed with an input operation, and the time for preparing can steeply be reduced.

Description

[Detailed description of the invention] 3.9. Explanation of N1llll14 (Technical Field of the Invention) Undeveloped Ill is the number 11 system W (N (:)! When machining a workpiece such as a shaft shape to be machined on the outer diameter using automatic programming of the machine on 4 axes simultaneously. , one machining operation for one workpiece [4 vehicles 114 positions in automatic programming that automatically creates 4-axis rotary machining L data such as machining range minute-1, 1 and tool information by information input operation Regarding Kacho generation method U:.

(Technical background of the invention and its problems) The majority of shaft-shaped workpieces do not require cutting of the inner diameter, but only the outer diameter is cut. Figure 3 (A)
Outside 18 like this! An example of a workpiece that is only subjected to cutting is shown below. When performing 4-axis simultaneous machining on this workpiece using an NC lathe S, etc., the method is to divide the machining range in the longitudinal axis direction of the workpiece. There is a method of simultaneously machining each of the divided machining ranges. However, although each of these divided machining ranges performs outer diameter cutting, conventionally, each machining range 1 is completely different! ,
II l') 1 It is necessary to input and specify machining information such as machining content, machining direction, tool information %2, etc. for each machining range as if it were a ffi level, and the manual operation is only cumbersome for the operator. However, there was a problem that it took a lot of time. (Objective of the Invention) The present invention was made in view of the above circumstances.1 The purpose of the present invention is to One operator per workpiece is used for simultaneous four-axis machining of a workpiece such as a shaft shape that is to be machined to cut the outer diameter.
The object of the present invention is to provide a 4-axis simultaneous machining generation method in automatic programming that automatically generates 4-axis simultaneous machining data for the workpiece by multiple machining information input operations.

(J!Key Point of the Invention) The present invention relates to a 4-axis machining generation force method in automatic programming using a numerically controlled lathe, and the present invention utilizes the automatic programming function of the numerically controlled lathe described above to create a workpiece for which outer diameter cutting is to be performed. When automatically generating 4-axis simultaneous machining data of For all concave angle points excluding the point, a line passing through each convex point and at a predetermined angle corresponding to the blade edge angle of the evaporator is drawn a: ii'L, and each of the above lines intersects the sawn shape with the corresponding intersection point. Select a workpiece shape point that does not intersect the workpiece shape with each view angle point, and set the workpiece shape point closest to the center of the workpiece shape in the longitudinal axis direction among the selected workpiece shape points as the division point. The machining range of the workpiece shape is divided, and four-axis simultaneous machining data is automatically generated for each of the divided machining ranges.

(Example 1) Fig. m1 is a block configuration diagram schematically showing a control device for an NG lathe that can make overuse of the 4-axis simultaneous machining generation method in automatic programming of the present invention. In Figure 1, CRT display! The display 1, which consists of A1, displays the program and data, etc., and the keyboard 2 displays information such as workpiece shape, material shape, usage [shell (cutting edge angle, ■ common number). 1), 0-manpower system fRn used when manually inputting machining information data such as cutting conditions etc. 3 reads various manually inputted data from E-article board 2 and displays it on the display l, as well as 1-person data storage Fs This manual data record + 11 PI 14 stores the fl data output from the L input iDI key section 3; Based on the shape data, machining am in the longitudinal axis direction of the workpiece is
The points (dividing points) are automatically set as described below. The shape division setting section 6 sets a division line of the machining range, which will be described later, by one point set by the division point setting section 5, and divides each machining range into independent machining ranges by this division line. The 0-division data storage section 7, which sets tool information, cutting conditions, etc., is the above-mentioned component; the workpiece shape for each valley machining range set in the setting section 11; Stores data such as material shape, information on tools used, and cutting conditions.

Using an HC lathe equipped with such a powerful control device, the present invention can be applied to a workpiece as shown in Fig.
Four-wheel time machining generation function Jυ in l-dynamic programming,
will be explained below with reference to the flowchart shown in FIG.

In the uninvented method, an operator selects a work w1 as shown in FIG. 3(A) while checking the L display l.
Machining information (points PI, P2, which indicate workpiece shape data)
..., points PI and P indicating coordinate values of P7 and material shape data
8. P? When inputting the coordinate values of and the cutting edge angle "9) of the tool T used" from the keyboard 2.

These processed information data are the input data 111 part 3.
Input data is stored by t! A4 (step S1), where the dividing point setting Paa is set to the point P1. P2. ... ,
P7 is sequentially read (steps 32 to S3), and each of the read workpiece shape points is determined as follows to set a machining range dividing point.

ΦFirst, if the sequentially read workpiece shape points 21 to P7 are the first workpiece shape point Pi or the last workpiece shape point P7, which are both end points of the workpiece, the workpiece shape points PI and P7 can be the dividing points. Since there is no workpiece shape point, the process returns to step S2 and the next workpiece shape point is determined, similarly determined, and other workpiece shape points 22 to P8 are selected as divisible points (step S4).

Q) Next, among the workpiece shape points P2 to PB, the concave point P2. Since P4 and Pe are inaccurate at 161 points, JJ! Then read the next workpiece shape point, set r1 in the same way, and select other workpiece shape points P3 and P5 as divisible points (
Step S5).

■Furthermore, as shown in Fig. 4 (^), assuming a line JIT with an angle 01 that has a margin of about 50 with respect to the cutting edge angle O of the tool T used, step 94. Line garden 3 passing through workpiece shape points P3 and P5 selected by S5
and about iTs.

It is determined whether there is an interference point with the workpiece shape w1 at IJll with the intersection of the material shape Nl& (step S8).

) Here, a workpiece v as shown in Fig. 4(C)
In the case of shape point P20 of 2, -h step S4. In S5, it is selected as the minute pg ur function point, but this 9
- If we assume that the above line I T2 (I) passes through the material shape point P20, then this line! 〒20 is the intersection point P with the material shape N2
It has an interference point PV20 with the workpiece shape w2 at II with P20! , this workpiece shape point P20 cannot be the desired divisible point. On the other hand, as shown in FIG. 4(B), lines 3 and j passing through the workpiece shape points P3 and P5 are
lT5 is the intersection point PP3 for the material shape old, respectively.
and PP5, and there are no interference points between them with the workpiece shape points, so these workpiece shape points p3 and P5 are respectively set as the above-mentioned divisible points (step S7
).

In this manner, steps 52 to S7 are repeated and when the setting of divisible points for all workpiece shape points Pi to P7 is completed, 1. As shown in FIG. 4 (+1), the L distribution marking point setting unit 5 selects the divisible points P3 and P5 set as E, as shown in FIG. 4 (+1).
The outer diameter machining range 111U in the longitudinal axis direction of this workpiece shape w1
Find the point P5 closest to the center of PI-P7 (step S8), and set this workpiece shape point P5 as the machining range dividing point for this workpiece pull (step S9), so as shown in FIG. 3(B). So, h shape division setting 2 Fi 6
is the above line that passes through this machining range dividing point P5! Assuming T5, the dividing line jlT5 is set, and each machining range -■ and 111 is divided by 1 at this dividing line ff1T5.
12 as independent machining@IM, the above workpiece shape data P1 to P7 and material shape data PI, Pal,
P7 is divided and set as shown in FIG. 4(E). Furthermore, the tool information such as the cutting edge angle of the tool T used above and the 1st cutting condition are also divided and set for each of the above machining ranges -11 and w12, and these divided shape machining information data are divided into the above-mentioned -1 data. Set in storage unit 7 (step 5IO)
.

In addition, in the above-mentioned embodiment, an example was shown in which the operator manually inputs the information on the workpiece shape by operating the keyboard, but other Wi1m devices and systems etc.
The determined data may be transferred and manually processed.

(Effect of the invention) As shown in H below, Book 9. 4 in automatic programming
According to the conventional method of generating shaft rotation time.

The operator sets the tth machining range dividing point, and
Simultaneous 4-axis machining of a workpiece that only performs outer diameter cutting, which used to involve inputting each marine machining condition for each machining range divided by points, is now possible.
Workpiece shape, material shape, and usage input in one operation:
[Since the optimal simultaneous machining data is automatically generated from data such as tools and machining conditions, the time required to create a 4-axis rotary machining program can be significantly shortened, and the burden on the operator can be reduced. .

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing an example of an apparatus to which the method of the present invention can be applied, FIG. 2 is a flowchart explaining the operation of the simultaneous processing and generation method of the present invention, and FIG.
(B) and FIGS. 4(^) to (E) are diagrams showing an example of a workpiece and a division point determination method for explaining a method of generating simultaneous machining of unreleased 1. l...display, 2...keyboard, 3...
Human power-control unit, 4... Input data storage unit, 5... Division point: a leg, 6... Shape division setting unit, 7... Division data storage unit, PI #P7. P20. Pi'～P7
°...Workpiece shape point, Pi, PI, P7. PP5.
PIo, P8°, PP5°--Material shape point, vt,
w2・1G material shape, wll, 1112-... processing range. Old, N2...Material shape, T...Tool used.

Claims (2)

[Claims] (1) In automatic programming of a numerically controlled lathe, when automatically generating 4-axis simultaneous machining data for outer diameter cutting,
The machining range of the workpiece is divided based on input workpiece shape, material shape, and tool data, and 4-axis simultaneous machining data is automatically generated for each divided machining range. 4-axis simultaneous machining generation method in automatic programming. (2) The machining range is divided by dividing all convex points of all workpiece shape points indicating the workpiece shape, excluding both end points and all concave points, by passing through each convex point according to the cutting edge angle of the tool. Assuming each line at a predetermined angle, selecting a workpiece shape point that does not intersect the workpiece shape between each intersection point where each of the lines intersects the material shape and each of the convex angle points,
According to claim 1, the machining range of the workpiece shape is divided by using the workpiece shape point closest to the center of the workpiece shape in the longitudinal axis direction as the dividing point among the selected workpiece shape points. 4-axis simultaneous machining generation method in automatic programming described above.