JPH06277922A - Composite machining device - Google Patents

Abstract

PURPOSE:To improve labour effectiveness for improving productivity by arrangedly providing a plurality of different kinds of rotary tools along the direction of cutting feed. CONSTITUTION:The tip of a driven shaft 13 passes through the front of a case 5 and protrudes toward the surface outside. A protrusive part protruding outward is provided with chuck parts 15,15, which can clamp different kinds of rotary tools 3, 4 such as an end mill. In addition, the direction of the cutting feed of a composite machining device 1 is that shown by an arrow, and a line connecting the two rotary tools 3, 4 coincides with the direction of the cutting feed. The rotary driving power of a spindle 2 is transmitted to a driving shaft 8, and then simultaneously transmitted to the two rotary tools 3, 4 through a driving gear 11 and a driven gear 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined machining apparatus in which a plurality of different rotary tools are attached to one machine to reduce machining steps.

[0002]

2. Description of the Related Art Conventionally, for example, end surface processing for processing an end surface of a work, groove processing for forming a groove, and the like are carried out by feeding an end mill in a direction orthogonal to a tool axis. The end face machining and the groove machining are usually performed in two steps using different kinds of end mills, in which a rough machining is first performed and then finishing is performed.

[0003]

However, the conventional two-step processing has a problem that the work efficiency is low, and it takes time and labor.

[0004]

In order to solve the above-mentioned problems, the present invention relates to a multi-tasking machine in which a machining feed is carried out in a direction orthogonal to a tool shaft, in which a drive shaft provided with a shank portion for spindle connection is driven. A gear is fixed, a pair of driven gears is meshed with the drive gear to fix the driven shaft to each driven gear, and a chuck portion is provided on the driven shaft. Then, different kinds of rotary tools were attached to the respective chuck parts, and the lines connecting the rotary tools were made to coincide with the machining feed direction.

[0005]

If the upstream side is a roughing tool and the downstream side is a finishing tool among a plurality of rotary tools arranged along the machining feed direction, roughing and finishing can be performed simultaneously in one step. You can do it. Further, depending on the combination of tools, for example, a groove having a special shape such as a stepped groove can be processed in one step.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the combined machining apparatus of the present invention will be described with reference to the attached drawings. 1 is a transverse sectional view of the device of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG.

As shown in FIGS. 1 and 2, the combined machining apparatus 1 of the present invention transmits the rotation of one spindle 2 to two different kinds of rotary tools 3 and 4 so that plural machining can be performed simultaneously. It is configured.

That is, the combined machining apparatus 1 is rotatable by a case 5, a detent pin 6 that projects rearward from the back side of the case 5 and also serves as a positioning member, and a bearing portion 7 in the center of the case 5. A drive shaft 8 supported by the drive shaft 8 is provided, and a taper shank portion 8a is formed at the protruding portion of the drive shaft 8 penetrating the back side of the case 5 and protruding to the outside.

The taper shank portion 8a can be fitted into the tapered shank insertion hole 2a provided on the tip end surface of the spindle 2, and the rotation stopping pin 6 is provided on the spindle housing 10. It can be inserted into the pin hole 10a.

A drive gear 11 is fixed to the drive shaft 8 in the case 5. A pair of left and right driven gears 12, 12 are meshed on both sides of the drive gear 11 with the drive shaft 8 interposed therebetween. The driven shafts 13, 13 integrated with the driven gears 12 are provided in the case 5. It is rotatably supported by bearings 14, 14.

The tip of the driven shaft 13 penetrates the front surface of the case 5 and projects toward the outside on the front side. A chuck portion 15 is provided on the protruding portion protruding outside, and the chuck portions 15 and 15 can clamp rotating tools 3 and 4 such as end mills of different types.

The machining feed direction of the composite machining apparatus 1 is the direction shown by the arrows in FIGS. 1 and 2, and the line connecting the two rotary tools 3 and 4 coincides with this machining feed direction. There is.

In the combined machining apparatus 1 thus constructed, the taper shank portion 8a of the drive shaft 8 is fitted into the shank insertion hole 2a of the spindle 2, and at the same time, the detent pin 6 is inserted into the pin hole 10a for positioning. Then, when the spindle 2 is rotated, the rotational driving force of the spindle 2 is
And is simultaneously transmitted to the two rotary tools 3 and 4 via the drive gear 11 and the driven gear 12.

Next, an example of a processing mode by the combined processing apparatus 1 will be described with reference to FIG.

FIG. 3 (A) shows that, in the machining of the groove m, rough machining and finish machining can be simultaneously performed. In other words, if the rotary tool 3a for rough cutting with a small diameter is arranged on the upstream side of the machining feed and the rotary tool 4a for finishing with a larger diameter is arranged on the downstream side for machining feed, the finishing machining of the groove m is performed. The work up to can be completed in one step.

Next, FIG. 3B shows that the two-step groove n can be processed without using a step cutter.
In this case, for example, the rotary tool 3b on the upstream side of the machining feed has a small diameter and a long length, and the rotary tool 4b on the downstream side has a larger diameter and a shorter length. It is possible to simultaneously process the two-step groove n having a second-step depth with a length difference d of 4b.

Further, FIG. 3C shows a structure in which rough cutting and finish cutting can be simultaneously performed in the end face cutting, and in this case also, as in the case of (A), the diameter is small on the upstream side of the working feed. If the rotary tool 3c for rough cutting is arranged and the rotary tool 4c for finishing sharpening having a larger diameter is arranged on the downstream side and the machining is fed, the work up to the finish machining of the end face can be performed in one step.

Further, FIG. 3D shows that a dovetail groove such as a T-shaped groove t can be simultaneously processed. That is, in this case, the rotary tool 3d such as an end mill is arranged on the upstream side of the machining feed, and the rotary tool 4d such as a T-groove milling machine is disposed on the downstream side.
Can be processed at the same time by arranging and feeding.

Needless to say, in such a machining mode, a large number of other shavings can be performed by combining tools. Note that, for example, the diameters of the left and right driven gears 12, 12 may be changed to change the rotational speeds of the rotary tools 3, 4.

[0020]

As described above, in the combined machining apparatus of the present invention, a plurality of different types of rotary tools are arranged along the direction of the machining feed, and the work conventionally required to be performed in two steps can be performed. Since it can be done in one process, it is possible to improve work efficiency and productivity. Also, the structure of the device is simple, and it can be constructed inexpensively and easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a combined machining device of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an explanatory diagram of a processing mode

[Explanation of symbols]

 1 Combined processing device 2 Spindle 3, 4 Rotating tool 8 Drive shaft 11 Dry gear 12 Driven gear 13 Driven shaft 15 Chuck part

Claims (1)

[Claims] 1. A composite machining apparatus adapted to machine and feed in a direction orthogonal to a tool shaft, wherein a drive gear is fixed to a drive shaft provided with a shank portion for spindle connection,
A pair of driven gears are meshed with this drive gear to fix the driven shaft to each driven gear and a chuck part is provided on this driven shaft. A multi-tasking machine characterized in that the directions are matched.