JPH0236049A - Preparation for mill work program - Google Patents

Abstract

PURPOSE:To quicken a prepared hole working speed and to extend the service life of an end mill by preparing the program for working a prepared hole by a drill from the program working the prepared hole by an end mill and performing the end mill work after working the prepared hole by the drill. CONSTITUTION:The program extracting the stage of a prepared hole working from a work program, collecting this program to a separate file, converting a tool to a drill, converting a cutting speed in the speed for the drill and returning to a reference point is added. As a result, working is executed by preparing the program performing the prepared hole working by a drill and using this work program for the prepared hole working and already prepared work program. For instance prepared holes 4a, 4b, 4c are executed by drilling at first on a work 1, in succession the work passages 5a, 5b, 5c of the groove inside are worked by an end mill tool and the whole working is finished.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mill processing program creation method for creating a processing program for mill processing using an interactive numerical control device, and particularly relates to a method for creating a processing program for mill processing using an interactive numerical control device. Concerning mill processing program creation method.

[Prior Art] In groove machining and pocket machining, an end mill is used, and before machining the side portion of the end mill tool, drilling is first performed with the same end mill tool.

FIGS. 5(a) and 5(b) show an example of groove machining using a conventional end mill tool. In the figure, ■ is the workpiece, and 3
is an end mill tool. First, as shown in FIG. 5(a), drilling is performed in the Z-axis direction using the end mill tool 3, and then, as shown in FIG. 5(b), grooving is performed.

(Problem to be solved by the invention) However, since end mill tools are made to be machined mostly from the side, when drilling with end mill tools, the tool life is short (and the machining speed has to be reduced). There wasn't.

The present invention has been made in view of these points, and it is an object of the present invention to provide a mill processing program creation method in which drilling is performed for preparing a prepared hole.

[Means to solve the problem]

In order to solve the above problems, the present invention searches for a machining program that includes groove machining or pocket machining in a mill machining program creation method in which a machining program for mill machining is created using an interactive numerical control device. Provided is a milling program creation method characterized by extracting a drilling program using an end mill and creating a processing program in which the end mill processing is converted into a drilling program using a drill.

[Effect]

In order to drill a pilot hole, extract the hole machining from the machining program and convert it into a drilling program.

Execute end milling while drilling the pilot hole.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIGS. 1(a), 1(b), and 1(c), 1 is a workpiece, 2 is a drill, and 3 is an end mill tool.

In the conventional machining program, the pilot hole 4 was also machined using the end mill tool 3. Therefore, first, the process of preparing a pilot hole is extracted from the machining program, and this is converted to drilling. This searches for the program G(N z−−−−−Ft−−; Add a program to convert to the desired speed and return to the reference point.

As a result, a machining program for drilling a pilot hole with a drill is completed. Actual machining is performed using this machining program for machining the prepared hole and the machining program that has already been completed.

In FIG. 1(a), a pilot hole is drilled using a drill 2 using a machining program newly created for drilling a pilot hole. Next, use the already completed machining program as shown in Figure 1 (b).
As shown in the figure, the lower part of the hole 4 is machined flat using the end mill tool 3. Subsequently, as shown in FIG. 1(C), machining is performed using the side surface of the end mill tool 3.

Figure 2 shows an example of groove machining. In the figure, 1 is a workpiece, and 5 is a groove to be machined. Machining begins with pilot hole 4a.
, 4b and 4c are performed by drilling, and then the processing passages 5a, 5b and 5c in the groove 4 are processed using the end mill tool 3.

Figure 3 shows an example of pocket processing. In the figure, 1 is a workpiece and 6 is a pocket. First, pilot holes 4a, 4b,
Pilot holes 4c, 4d, 4e, etc. are drilled with a drill 2, and then passages 7a, 7b, 7c, 7d, 7e, etc. are machined with an end mill tool 3.

FIG. 4 shows a schematic configuration diagram of the hardware of a numerical control device for implementing the present invention. In the figure, 11 is a processor that controls the entire numerical control device, 12 is ROIVf in which a system program is stored, and 13 is a RAM in which various data are stored.

14 is a display device, and a CRT or the like is used. A nonvolatile memory 15 stores machining programs, parameters, pitch error correction amounts, and the like.

16 is an operation panel, and 17 is a machine tool.

In this way, by creating a program for pilot hole machining, executing pilot hole machining with a drill, and then performing milling with an end mill tool, it is possible to speed up the machining speed of pilot hole machining and extend the life of the end mill tool. Can be done.

〔Effect of the invention〕

As explained above, in the present invention, a pilot hole machining program for machining a pilot hole with a drill is created from a machining program for machining a pilot hole with an end mill tool, the pilot hole is machined with a drill, and then the end mill tool Since the milling process is performed using the machine, it is possible to speed up the machining speed of the pilot hole and extend the life of the end mill tool.

[Brief explanation of the drawing]

Figures 1 (a), (b), and (C) are explanatory diagrams of the second method of creating a milling program according to the present invention, Figure 2 is a diagram showing an example of groove machining, and Figure 3 is an example of pocket machining. The figure shown in FIG. 4 is a schematic configuration diagram of the hardware of a numerical control device for implementing the present invention. FIGS. 5(a) and 5(b) are diagrams showing an example of groove machining using a conventional end mill tool. 1-1-----・-----11 Work 2-----・-
・−・−Drill 3−・−・・・・−−1−−−End mill tool 5−・
−・・−・−・−Groove 6−−−−−・−・・・Pocket 11−−m−・
−〜−−−−−−−Processor 12−=・・・・・・−−
---ROM1 3・----m----・--1-・
RAM 14 - - - - - - - - Display 15 -
・--・--Non-volatile memory 16・-----
11--------Operation panel 17---- Machine tool patent applicant FANUC Co., Ltd. agent Patent attorney Takeshi Hattori Figure 2

Claims (2)

[Claims] (1) In a mill processing program creation method in which a machining program for mill processing is created using an interactive numerical control device, a machining program that includes groove machining or pocket machining is searched, and a drilling machining program using an end mill is extracted from the machining program. A mill processing program creation method, characterized in that a processing program is created by converting the end mill processing into a drilling program using a drill processing. (2) A machining program is created that executes the drill machining program to drill a pilot hole, and then performs groove machining or pocket machining with an end mill. Mill processing program creation method.