JPS58177250A - Rough and middle finishing processing method for circular arc and taper in simultaneous uniaxial nc machine tool - Google Patents

Abstract

PURPOSE:To reduce the processing cost by performing rough and middle finishing processing while inputting the amount of notching per one time and a processing shape into a simultaneous uniaxial NC machine tool and subjecting a processing routine to automatic programming. CONSTITUTION:When taper processing or circular arc processing is performed with a machine tool such as a lathe, it is possible to perform rough finishing and middle finishing processing even with a simultaneous uniaxial NC, offering more advantages in the processing cost and the duration of life of the machine tool as compared with the situation when using a high-class NC device. The processing dimensions X, Z, r, etc., of a workpiece is inputted into the simultaneous uniaxial NC machine tool. In case of the rough processing, the processing routine of a cutting tool is formed by automatic programming when the notching amount alpha per one time is inputted into the NC, and the workpiece is processed. For the middle finishing processing, the processing routine is evaluated by inputting an interpolation value P. Thereafter, the finishing processing is performed by the high-class NC machine tool.

Description

[Detailed description of the invention] Concerning a method of machining or semi-finishing, in particular, simultaneous 1
The minimum necessary data is input into the axis NC machine tool, and the machining efficiency is increased by automatically programming the machining path of the cutter.

Conventionally, machining using NC machine tools generally involves rough machining,
Each stage of processing, including semi-finishing and finishing, was carried out using high-grade NC machines. But like this,
It is not only economically disadvantageous to use high-end NC machines in trenches for rough machining and semi-finishing that do not require high machining accuracy. , which shortened the life of high-grade NC machines.

The present invention has been made in view of the above points, and a simple type of simultaneous 1@NC machine tool is equipped with a support for rough machining and semi-finishing, while a high-grade NC machine is used exclusively for finishing machining. This was designed to increase the economic effect. moreover,
Conventionally, in the machining of circular arcs, tapers, etc. using NC, the blade path was programmed by specifying the coordinates of each point and the interpolation pitch was fixed, but in the present invention,
Simultaneous 1 that increases machining efficiency by inputting the minimum necessary data to determine the machining path of the cutter through automatic programming, and by allowing the interpolation pinote to be selected arbitrarily.
This provides a method for roughing and semi-finishing arcs and tapers in axis NC machine tools.

Hereinafter, embodiments will be described in detail with reference to the drawings.

1 and 2 show examples of the present invention, respectively. FIG. 1 shows the case of circular arc machining, and FIG. 2 shows the case of cheek machining. X is the dimension from the center axis of the workpiece,
Z is the dimension from the end, r is the radius of curvature of the circular arc, and these main machining dimensions of the workpiece are simultaneously input into the 1-axis NC machine tool. Furthermore, in the case of rough cutting, the depth of cut per cut is input, and in the case of semi-finishing, the interpolation pitch on the circular arc surface is input.

FIG. 3(A) shows the machining path of the blade in the case of rough cutting, and the dimension α is the depth of cut per cut.

As mentioned above, when the minimum necessary data such as the main machining dimensions of the workpiece and the depth of cut α are entered into the simultaneous 1-axis NC machine tool, the machining path of the cutter is automatically programmed and the predetermined roughness is achieved. Processing is performed.

FIG. 3(B) shows the machining path of the cutter in the case of semi-finishing, and the dimension p is the interpolation pitch. In the present invention, the interpolation pitch, which was conventionally fixed, can be arbitrarily designated according to processing conditions. This allows processing efficiency to be significantly increased.

In addition, Fig. 3(c) shows the machining path of the cutter during finishing, and since high dimensional accuracy is required, high-grade N
C machine is used.

As explained above, according to the present invention, it is possible to simultaneously perform rough machining and semi-finishing of arcs and rough edges with a single-axis NC machine without using a high-end NC machine, and moreover, with the minimum amount of data. Since automatic programming and interpolation calculations are performed based on input, machining efficiency is significantly improved and economically advantageous. Furthermore, since high-grade NC machines are used exclusively for finishing, they have the advantage of maintaining high precision and extending their lifespan.

[Brief explanation of drawings]

Fig. 1 is a diagram showing circular arc machining according to an embodiment of the present invention;
The figure is a diagram showing chi/ya machining in another embodiment of the present invention, and Fig. 3 is a diagram showing the machining path of the cutter in each process of (N rough machining, (B) semi-finishing, and (C) finishing). α: Depth of cut, p: Interpolation pitch. Fig. 1

Claims (1)

[Claims] At the same time, the main machining dimensions of the workpiece and
In the case of rough cutting, input the depth of cut per cut and the interpolation pitch in the case of semi-finishing as data, and perform rough machining or semi-finishing of circular arcs, chisels, and grooves by automatically programming the machining path of the blade. Simultaneous 1 characterized by
@ Roughing and semi-finishing of circular arcs and tapers using NC machine tools.