JPH0740124A - Front milling cutter - Google Patents

Abstract

PURPOSE:To eliminate the exchange time of a tool, etc., and shorten the time required in a finish process by applying a slide type to an edge for finishing, arranging a move part on the main spindle part of a machine main body and adjusting a cutting edge. CONSTITUTION:A front milling cutter main body has a cutting edge 1 for rough processing and a cutting edge 2 for finishing as its peripheral cutting edge. The cutting edge 1 for rough processing is fixed on a body 4 for rough processing through a cartrige 3. The cutting edge 2 for finishing is fixed on a finishing body 6 through a cartrige 5. The accuracy of the body 6 for finishing is kept by making a guide part in relation to the adjustment of the cutting edge by arranging a body 7 for setting to be fixed and a slide part 8 on the body 4 for rough processing. The accuracy of the body 6 for finishing is kept by arranging a main spindle move part 10 in the drive hole 9 of the body 4 for rough processing, moving the entire body 6 for finishing and interlocking it with the slide part 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a face milling machine mainly used for rough to finish cutting in a milling machine or the like, and particularly to eliminate the troublesomeness of tool exchange.

[0002]

2. Description of the Related Art Up to now, when a face milling machine has been attached to a machine such as an MC for flat machining, especially when a machining allowance is large and a finishing precision of the cutting surface is required, one machine tool is determined. In order to perform processing within the processing time, it is common to use a roughing cutter and a finishing cutter together. When performing cutting with a single cutter, the shape and arrangement of the throw-away tip can be used to improve the accuracy of the cutting surface while performing rough cutting by devising the wiper part and arranging the finishing tip inside the peripheral tip. There are also ways to improve. (As an example, JP-A-5-104318
Further, there is also proposed a method for adjusting the finishing blades at a time by separately providing a roughing blade portion and a finishing blade portion and rotating the ring member as in JP-A-62-124811. There is.

[0003]

However, these methods naturally require two cutters, and when one cutter is used, it takes time for tool adjustment, setup, tool exchange, and the like. In addition, JP-A-62-12
With the No. 4811 cutter, it is difficult to adjust the cutting edge, and the number of finishing blades is small, so in order to perform highly accurate processing, the feed rate is reduced to perform precision processing, resulting in poor efficiency and within the determined processing time. Difficult to process. Therefore, the present invention solves the above problems by providing a moving part in the front milling cutter body and adjusting both the roughing blade and the finishing blade as a sliding type.

[0004]

In order to achieve the above object, the present invention has the following constitutional requirements. That is, in a face mill having a blade for rough cutting and a blade for finishing, the rough cutting blade and the finishing blade are of a split type, and the finishing blade is slidable and moved to the main spindle of the machine body. A part is provided and the cutting blade is adjusted pneumatically or hydraulically or electrically.

[0005]

In the present invention, the roughing blade and the finishing blade are provided in one cutter, and after the roughing is completed, the finishing blade is lowered or advanced. Perform finishing. The roughing blade / shape / material and the finishing blade / shape / material can be set as desired, and the cutting specifications for finishing can also be set. It is also possible to provide a moving shaft of the finishing cutter by pneumatic pressure, hydraulic pressure or electric power on the main shaft instead of the specified dedicated machine.

The cutter of the present invention adopts an oil-through method to lubricate the sliding portion of the finishing cutter blade portion in addition to the injection of cutting fluid, and generate internal pressure in the finishing blade portion to slide chips and foreign matter. It is also possible to prevent the mixture from entering into the section. Hereinafter, the present invention will be described in detail based on examples.

[0007]

【Example】

FIG. 1 is a partially sectional development view schematically showing the structure of a front milling cutter according to the present invention used in a machining center, when the front milling cutter is mounted. In FIG. 1, the front milling cutter main body has a cutting blade 1 for roughing and a cutting blade 2 for finishing as outer peripheral cutting blades.
The roughing cutting blade 1 is fixed to a roughing body 4 via a cartridge 3. The cutting blade 2 for finishing is fixed to the finishing body 6 via a cartridge 5. The finishing body 6 is designed to have a setting body 7 fixed to the roughing body 4 and a sliding portion 8 so as to serve as a guide portion for adjusting the cutting edge and maintain accuracy.
Further, the finishing body 6 is provided with a spindle moving portion 10 in the drive hole 9 of the roughing body 4 so that the entire finishing body 6 moves and the precision is maintained by interlocking with the sliding portion 8.

Since the front milling cutter of the present invention is constructed as described above, the front milling cutter is mounted on the machining saiter after adjusting the run-out of the cutting edge and the like, and is first subjected to roughing.
The roughing is performed with a roughing cutting blade (16 blades in FIG. 2). Next, the spindle moving unit is moved by the driving force of the machining center to move the finishing cutting blade forward to perform finishing (8 blades in FIG. 2). Therefore, the feature is that the shape and material of the chips for roughing and finishing can be selected appropriately.

[0010]

EFFECTS OF THE INVENTION By the face milling cutter of the present invention, roughing blades and finishing blades are provided, and by moving the finishing blades, it is possible to eliminate the time required for exchanging tools and the like, and to perform various cutting operations during finishing blade processing. Originally, it is possible to shorten the time required for finishing because the shape and material of the chip etc. can be widely set.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a face milling cutter according to the present invention.

FIG. 2 shows a front view of FIG.

[Simple explanation of symbols]

 1 Cutting blade for roughing 2 Cutting blade for finishing 3 Cartridge (for roughing) 4 Body for roughing 5 Cartridge (for finishing) 6 Finishing body 7 Body for set 8 Sliding part 9 Drive hole 10 Spindle moving part

Claims (2)

[Claims] 1. A front milling machine having a rough cutting blade and a finishing blade, wherein the rough cutting blade and the finishing blade are of a split type, and the finishing blade is of a sliding type. A face milling machine characterized by a moving part provided on the part to adjust the cutting blade. 2. The front milling cutter according to claim 1, wherein the moving portion is adjusted by pneumatic / hydraulic or electric driving.