JPH091417A - Milling cutter attachment - Google Patents

Abstract

PURPOSE: To shorten the length of cut scrap to efficiently suck the cut scrap into a sucking cover, by providing an inhibiting plate, so that the cut scrap can abut on the rake faces of respective cutting blade tips, on the tip outer peripheral part of a milling cutter main body. CONSTITUTION: Cut scrap is led to an inhibiting plate 12, provided so that the cut scrap can abut on a rake faces 11a, along the rake faces 11a of respective cutting blade tips 11, and the cut scrap is struck to the plate 12 to be cut into short pieces. Moreover, the cut scrap, being cut into short pieces, is efficiently sucked by suction at respective suction ports provided on a sucking cover to be led between a milling cutter main body and the sucking cover. The cut scrap, thus led, is blown off by air being led from respective air lead-in ports to be recovered through the respective sucking ports.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milling apparatus used for cutting an object to be machined to perform a plane machining of the object, and more particularly, to sucking and discharging cutting chips generated by the cutting. TECHNICAL FIELD The present invention relates to a milling device provided with a suction cover having an open end so as to cover the periphery of a milling body having a plurality of cutting blade tips attached to the outer periphery of the end.

[0002]

2. Description of the Related Art Conventionally, when a workpiece is cut to perform planar processing on the workpiece, generally, as shown in FIG.
The plurality of cutting tips 1
1 is detachably attached at appropriate intervals in the circumferential direction,
The milling body 10 is rotated around its axis by a rotating device (not shown), and the object to be cut is cut and plane-processed by each of the cutting blade tips 11 attached to the milling body 10. .

[0003] Here, when the cutting object is cut by each cutting edge tip 11 of the rotating milling body 10, cutting chips are generated.

Conventionally, the cutting chips generated as described above are guided from the rake face 11a of each cutting edge tip 11 to the wall surface of the tip pocket 13 and rounded. To be discharged.

[0005] However, when the cutting chips are simply discharged outward in the circumferential direction of the milling body 10, the cutting chips are widely scattered to the surroundings with the rotation of the milling body 10, and as a result, There are problems that the working environment is degraded, danger is caused in the work, and that it takes time to process the chips after cutting.

Therefore, even in the past, the actual fairness 7-7
As shown in Japanese Patent No. 053, etc., as described above, a suction cover having an open tip is provided so as to cover the periphery of the milling cutter body which rotates around the axis, and the suction cover with the rake face of each cutting blade tip is provided. A cutting waste guide member is arranged on the outer periphery of the tip of the milling body so as to form a gap for guiding cutting waste between them, and a suction cover is provided for the cutting waste of the object cut by the cutting edge tip through this gap. Guide to the cutting waste storage chamber between the inner peripheral surface of the and the outer peripheral surface of the milling machine,
A device has been developed in which the cutting waste guided to the cutting waste storage chamber through the suction port provided in the suction cover is sucked and collected.

However, as described above, the cutting debris guide member is arranged so as to form a gap for guiding the cutting debris with the rake face of the cutting blade tip, and the cutting debris is passed through this gap to the cutting debris storage chamber. When it is guided, the length of the cutting waste cut by the cutting edge tip is long, and such long cutting waste is clogged and fused in the gap between the rake face of the cutting edge tip and the cutting waste guide member. , It becomes difficult to replace the cutting edge tip, long cutting chips are clogged in the chip pocket or cutting chip storage chamber, and air flows into the suction cover through the above gap, and the effect of sucking cutting chips decreases. There was a problem such as.

[0008]

SUMMARY OF THE INVENTION According to the present invention, as described above, a plurality of cutting blade tips are attached to the outer peripheral portion of the tip of the milling machine, and the suction is opened so that the periphery of the milling machine is covered. A cover for use, the milling body is rotated around the axis to cut the object to be cut by each cutting edge tip, and the cutting scraps thus cut are sucked through the suction cover and collected. The problem is to solve such problems.

That is, according to the present invention, as described above, the milling machine body is rotated about the axis, and the cutting object is cut by each cutting edge tip provided on the tip outer peripheral portion thereof, and the cutting waste generated by this When sucking and collecting through the above-mentioned suction cover provided so as to cover the periphery of the milling cutter, there is no possibility that the cutting waste will be fused to the cutting edge tip, etc. Therefore, it is an object of the present invention to make the cutting waste efficiently sucked into the suction cover and to be effectively collected.

[0010]

According to the present invention, in order to solve the above-mentioned problems, a plurality of cutting blade tips 11 are attached to a tip outer peripheral portion of a milling body 10 which rotates about an axis, and the milling body 10 is provided. In a milling device provided with a suction cover 20 having a tip end opened so as to cover the periphery of 10, the rake face 11a of each cutting blade tip 11 is provided on the tip outer periphery of the milling body 10.
The restraining plate 12 is provided so as to come into contact with.

[0011]

In the milling device according to the present invention, the cutting edge tips 11 attached to the outer peripheral portion of the tip of the milling body 10 as described above are restrained by contacting the rake face 11a of each cutting edge tip 11. Since the plate 12 is provided, when the milling body 10 is rotated around the axis line to cut the object to be cut by each cutting blade tip 11, the cutting waste generated by this is the rake face 11a of the cutting blade tip 11.
Is guided to the above-mentioned restraining plate 12 provided so as to come into contact with this rake face 11a, and the cutting chips are guided to this restraining plate 12a.
When it hits, it will be divided into short pieces.

The cutting chips thus cut and shortened are efficiently sucked into the suction cover 20 on the outer peripheral side of the milling main body 10, and the cutting chips shortly cut are successfully collected through the suction cover 20. Will be done.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

Also in the milling machine of this embodiment, as shown in FIG. 2, a plurality of cutting blade tips 11 are attached to the outer peripheral portion of the tip of the milling body 10.

Here, in the milling machine of this embodiment, as shown in FIGS.
In the outer peripheral portion of the tip of the
Was provided so as to abut on the rake face 11a of each cutting edge tip 11 at a position slightly above the tip of the. In this embodiment, as the restraint plate 12, as shown in FIG. 3, a bent part is used so that the part contacting with the outer peripheral side part of each cutting blade tip 11 is inclined slightly upward. However, the restraint plate 12 may have a flat plate shape.

When rotating the milling machine body 10 about its axis, as shown in FIG. 5, the mounting member 33 is fitted into the central hole portion 14 on the tip side of the milling machine body 10 and rotated by the rotating device 30. The milling machine body 10 is sandwiched between the adapter 32 mounted on the spindle 31 and the mounting member 33, and in this state, the mounting member 33 is mounted on the adapter 32 with a tightening member 34 such as a bolt. A key 35 provided between the main body 10 and the adapter 32
Thus, the milling body 10 is rotated around the axis with the rotation of the spindle 31.

Further, the suction cover 20 having an open tip is provided so as to cover the periphery of the milling body 10 mounted so as to rotate together with the spindle 31 as described above.

Here, as the suction cover 20,
As shown in FIGS. 5 and 6, the lower cover 20b is rotatably attached to the upper cover 20a by a hinge 21, and the lower cover 20b is attached to the upper cover 2a.
In this state, the lower cover 20b is fixed to the upper cover 20a by the retaining pin 22 in a state where the lower cover 20b is adjusted to 0a.

Further, in the lower cover 20b,
Around the periphery thereof, a cutting chip guide path 23 protruding so as to gradually expand to the outer peripheral side is provided, and the lower end on the inner peripheral side of the guide path 23 gradually protruding in this manner has elasticity to contact the surface of the workpiece 1. And a first suction port 25a for sucking and discharging cutting chips is provided at the end of the cutting chip guide path 23 on the swelling side. Two air inlets 26a and 26b for introducing air to a suitable position are provided, and in addition to the first suction port 25a, a second suction port 25b for sucking and discharging cutting chips is provided.

When the suction cover 20 is provided so as to cover the periphery of the milling cutter main body 10, the stopper pin 22 is removed, and the lower cover 20b is pivoted downward and opened. Top cover 20a
The spindle 31 is inserted into the upper cover 20a.
To be attached to the cover 36 of the rotating device 30.

Thereafter, the lower cover 20b which is in the opened state as described above is rotated upward to move the lower cover 2b.
0b is closed to the upper cover 20a, and in this state, the lower cover 20b is fixed to the upper cover 20a by the fixing pin 22.

When the workpiece 1 is cut by the milling apparatus of this embodiment and the surface is machined, the milling body 10 is rotated around the axis by the spindle 31 of the rotating device 30. While cutting the workpiece 1 by a plurality of cutting blade tips 11 provided on the outer periphery of the tip end of 10, the air is supplied from the air inlets 26a and 26b provided on the suction cover 20 to the suction cover 20. Introduced between the rotating milling cutter body 10 and each of the above suction ports 25
The suction is performed through the suction ports 25a and 25b, and the cut chips are collected through the suction ports 25a and 25b.

Here, when the object 1 to be cut is cut by the cutting edge chips 11 provided on the rotating milling cutter body 10 as described above, the cut chips are cut off by the cutting chips 11.
The cutting scraps are guided along the rake face 11a to the restraining plate 12 provided so as to come into contact with the rake face 11a, the cutting dust hits the restraining plate 12 and is shortly divided, and is provided on the suction cover 20. By the suction at the suction ports 25a and 25b, the cutting chips that have been divided into short pieces as described above are efficiently sucked and guided between the milling machine body 10 and the suction cover 20, and the cutting chips thus guided are collected. The cutting dust is blown off by the air introduced from the air inlets 26a and 26b, and the cutting dust is removed from the suction ports 25a and 25a.
It came to be collected through 25b.

[0024]

As described above in detail, in the milling device according to the present invention, the rake face of each cutting edge tip is attached to each cutting edge tip attached to the outer periphery of the tip of the milling body which rotates about the axis. When the milling tool is rotated around the axis and the cutting object is cut by each cutting edge tip, the cutting waste is restrained along the rake face of each cutting edge tip because the inhibition plate is provided so as to contact with the The chips are guided to the plate, hit the cutting plate with cutting chips, and are cut into short pieces.The cutting chips that have been cut and shortened in this way are efficiently sucked by the suction cover on the outer peripheral side of the milling machine, Guided between the suction cover and the suction cover, this cutting waste is efficiently collected through the suction cover.

As a result, when the object to be cut is cut by the milling device according to the present invention to perform the flat surface processing of the object to be cut, the length of the cutting waste cut as in the conventional case becomes long and various. It is possible to perform stable flat surface processing of the work piece, since there is no need to clog in any other part or to fuse to the cutting edge tip.

[Brief description of the drawings]

FIG. 1 is a partially sectional explanatory view of a conventional milling body.

FIG. 2 is a partially sectional explanatory view of a milling body used in the milling apparatus according to one embodiment of the present invention.

FIG. 3 is a partial explanatory view showing a state in which a restraining plate is provided so as to come into contact with a rake face of a cutting edge tip attached to a milling body in the milling device according to the above-described embodiment.

FIG. 4 is a partial explanatory view showing a state in which a cutting object is cut by a cutting blade tip attached to a milling body in the milling device according to the above-described embodiment.

FIG. 5 is a cross-sectional explanatory view showing a state in which the milling device according to the above-described embodiment rotates the milling body by the rotating device to cut the object to be cut by the cutting blade tip.

FIG. 6 is a schematic explanatory view of the bottom surface side of the milling device according to the above-described embodiment.

[Explanation of symbols]

 10 Milling Main Body 11 Cutting Blade Tip 11a Rake Face 12 Suppression Plate 20 Suction Cover

Claims (1)

[Claims] 1. A suction cover 20 having a plurality of cutting blade tips 11 attached to an outer peripheral portion of a tip of a milling cutter body 10 which rotates about an axis, and a suction cover 20 having an open tip so as to cover the periphery of the milling cutter body 10. In the milling machine provided, a restraining plate 12 is provided on the outer peripheral portion of the tip of the milling machine body 10 so as to come into contact with the rake face 11a of each cutting blade tip 11 described above.