WO2019167697A1 - Coolant supply device, coolant supply method, and coolant ejection direction changing device - Google Patents

Abstract

The present invention pertains to a coolant supply means provided with a hole or groove for guiding a coolant. More specifically, the present invention pertains to a coolant supply means having a mechanism in which, when a coolant is ejected through a hole provided in a side surface of a body, the travel direction of the coolant is changed such that the coolant is ejected toward the direction of a cutting edge very close to the outer diameter of the cutting edge. A gutter (16), a coolant guide hole (18), and the like, are provided so as to be spaced from a coolant ejection port (12). Thus, a boring bar sleeve (15), etc., can be easily attached to a bite holder (11). An attachment or sleeve which is provided, in a side surface thereof, with a coolant inlet, and which is provided, in a boring bar (13) blade edge-side end surface thereof, with the coolant ejection port (12) connected to the inlet, can be mounted to the boring bar.

Description

Coolant supply device, coolant supply method, and coolant injection direction changing device

The present invention relates to a coolant supply device, a coolant supply method, and a coolant injection direction changing device for machine tool boring.

The conventional coolant supply device and coolant supply method uses a spherical nozzle provided on the turret body or the tool rest from the coolant supply source to the blade as much as possible, or uses a copper pipe to bring the coolant close to the tool and workpiece. What is supplied is known.

¡Coolant through uses a high-pressure pump to supply coolant to a small hole inside the blade and reliably supply coolant to the tip of the blade.

Patent Document 1 (Act No. 3143544) “Coolant supply means” improves the ease of manual adjustment in the coolant supply means, the durability of the tool, the machining accuracy of the workpiece, or the use effect of the cutting fluid on chip disposal. A coolant supply member is provided. "In the tool holder (H) according to claim 6, the coolant inlet (43) is formed in the holder front end (40), and the outer pipe (66). A tool holder characterized by connecting the two. "(Patent Document 1 claim 7).

Nikken NC lathe oil jetter drill sleeve LE-MT is also known.

Noto 3143544 Nikken NC Lathe Oil Jetter Drill Sleeve LE-MT (Niken Corporation 5-1-5-1 Minamishinda, Daito City, Osaka 574-0023) https://www.nikken-kosakusho.co.jp/product /index.php?seq=117 https://www.nikken-kosakusho.co.jp/about/company.html USP 4,213,354 Publication JP 2010-89206 A USP 6,382,887 USP 4,213,354 Publication USPAP2004 / 0013480 A1 Publication

There are still many problems remaining in internal diameter cutting in lathe processing. One of them is the cooling of the cutting edge. If sufficient coolant cannot be supplied to the cutting edge, the life of the cutting edge will be shortened, and there will be problems with the surface roughness and accuracy of the workpiece.
Conventional spherical nozzles and copper pipes, which are conventional coolant supply means, can only supply coolant to the entire cutting tool, and cannot concentrate coolant to the cutting edge portion where coolant should be supplied preferentially.
In addition, due to the positional relationship with the coolant injection port of the turret at the time of inner diameter cutting, the coolant may hit the outer diameter side of the workpiece and not enter the inner diameter side (see FIG. 31). As a result, the coolant does not hit the blade edge, and the blade edge is quickly damaged.

A CNC lathe used in general lathe processing is equipped with a platform on which a plurality of tools called turrets are mounted, and has a mechanism for automatically exchanging tools according to the cutting shape. One of the turret mechanisms includes a coolant supply mechanism.
In the conventional most common coolant supply means B attached to the CNC lathe A shown in FIG. 31, a coolant injection port 112 is provided in the tool post 111.
A boring bar sleeve 115 is attached to the tool post 111. A boring bar 113 as a tool is attached to the boring bar sleeve 115.
In the coolant supply means B, when the coolant 117 is injected from the coolant injection port 112, the coolant 117 injected from the coolant injection port 112 provided in the tool post 111 when the boring bar 113 enters the back of the workpiece 121 due to the structure. Has a problem that it hits the workpiece end surface 122 of the workpiece 121 and the coolant 117 does not enter the blade edge 114.
Furthermore, if the coolant 117 cannot be supplied to the cutting edge 114, the cutting edge 114 is damaged more quickly, and there is a problem in that chip discharge is bad.

That is, conventionally, it has been proposed to inject the coolant 117 directly from the coolant injection port 112 so as to be as parallel and nearly horizontal as possible in the longitudinal direction of the coolant injection target, which is a workpiece 121 such as a blade.
However, the coolant injection port 112 is provided around the mounting base of a coolant injection object such as a blade. Therefore, even when trying to inject horizontally with respect to the coolant injection object, since there is an angle, the coolant 117 is a workpiece, a workpiece, or the like in front of the tip, which is a coolant injection required portion of the coolant injection object such as a blade. The blade had a problem that it could not reach the tip.

On the other hand, although the coolant through can reliably supply coolant to the cutting edge, a high-pressure pump and a coolant filtration device must be introduced, which requires a large amount of cost and is not easy to maintain.

Patent Document 1 “Coolant Supply Unit” requires a pipe to connect the supply pipe to the side of the holder. Furthermore, since the coolant injection port on the end face of the holder is not in close contact with the inner diameter, when the cutting edge is inserted to the back of the work, the coolant hits the work end face and the coolant does not reach the back.
In addition, since it protrudes toward the workpiece from the end face of the holder, the cutter must be protruded from the holder accordingly.

Patent Document 2 “Nikken NC Lathe Oil Jetter Drill Sleeve LE-MT” is designed to be used with a tool that is closed on the back of the tool post. It is not possible to use it without a dedicated back cover or dedicated holder. For this reason, when it is necessary to shorten the protrusion of the boring bar from the tool post, the boring bar must be cut further.
Therefore, it is not very versatile.
In Patent Documents 3 to 7, the coolant is injected from the coolant injection port with a space between the coolant injection target and the conversion location provided near the attachment portion of the coolant injection target to the tool post. There is no statement to that effect.

The present invention solves these problems, and provides a coolant supply device, a coolant supply method, and a coolant injection direction change device for supplying coolant to a coolant injection target from the root to provide a space to a coolant injection required portion. I will provide a.

This invention
Coolant is injected from the coolant injection port provided on the tool post to a conversion point provided near the mounting part of the coolant injection object on the tool post that is different from the coolant injection required part. A coolant supply device that changes the injection direction and directs the coolant injection direction to the coolant injection required portion of the coolant injection object,
Consists of.

This invention
Coolant is injected from the coolant injection port provided on the tool post to a conversion point provided near the mounting part of the coolant injection object on the tool post that is different from the coolant injection required part. A coolant supply method that changes the injection direction and directs the coolant injection direction to the coolant injection required portion of the coolant injection object,
Consists of.

This invention
Installed at the coolant injection direction changing part provided near the mounting part of the coolant injection target provided on the tool post to the tool post, and changing the injection direction of the coolant injected from the coolant injection port with a space. A coolant injection direction changing device for directing the coolant injection direction to the coolant injection required portion of the coolant injection object,
Consists of.

The invention further provides:
A coolant supply device that can be attached to a boring bar or drill and has a ridge or a guide hole so that the coolant is injected from a position very close to the outer diameter of the boring bar or drill;
Consists of.

The invention further provides:
A coolant supply device having a current plate or a slope in the guide hole, or both a current plate and a slope,
Consists of.

The invention further provides:
A coolant supply device that has a coolant injection port in the center of the Jacob stapler of the drill chuck arbor and a coolant injection port on the side of the arbor,
Consists of.

The invention further provides:
A coolant supply device in which a funnel-shaped attachment or a funnel-shaped attachment with a ball joint is added to the coolant inlet;
Consists of.

The present invention solves these problems, and provides a coolant supply device and a coolant supply method for supplying coolant to a coolant injection target part along the coolant from the root. A space, a coolant guide hole, and the like are provided by leaving a space from the coolant injection port. Therefore, attachment to a tool post such as a boring bar sleeve becomes easy.

It is a side view of the 1st example concerning an embodiment of this invention. It is a detailed side view of the 1st example concerning an embodiment of this invention. It is a perspective view of the components of the 1st example concerning an embodiment of this invention. It is an exploded view of the 1st example concerning an embodiment of this invention. It is a perspective view of the components of the 2nd example concerning an embodiment of this invention. It is a perspective view of the components of 3rd Example based on embodiment of this invention. It is a side view of the 4th example concerning an embodiment of this invention. It is a detailed side view of the 4th example concerning an embodiment of this invention. It is an exploded view of the 4th example concerning an embodiment of this invention. It is a perspective view of the usage example of 4th Example which concerns on embodiment of this invention. It is a side view of the 5th example concerning an embodiment of this invention. It is a detailed side view of the 5th example concerning an embodiment of this invention. It is an exploded view of the 5th example concerning an embodiment of this invention. It is a side view of the 6th example concerning an embodiment of this invention. It is a detailed side view of 6th Example which concerns on embodiment of this invention. It is an exploded view of the 6th example concerning an embodiment of this invention. It is a side view of the 7th example concerning an embodiment of this invention. It is a detailed side view of the 7th example concerning an embodiment of this invention. It is a side view of the 8th example concerning an embodiment of this invention. It is a detailed side view of the 8th example concerning an embodiment of this invention. It is a side view of the 9th example concerning an embodiment of this invention. It is a detailed side view of 9th Example which concerns on embodiment of this invention. It is a perspective view of 10th Example which concerns on embodiment of this invention. It is an exploded view of 10th Example which concerns on embodiment of this invention. It is a front view of 11th Example based on embodiment of this invention. It is a side view of the 11th example concerning an embodiment of this invention. It is sectional drawing of 12th Example based on embodiment of this invention. It is a perspective view of 12th Example based on embodiment of this invention. It is sectional drawing of 13th Example based on embodiment of this invention. It is a perspective view of 13th Example which concerns on embodiment of this invention. It is a side view of the Example which concerns on the conventional form. It is an end view of the state which is not inserted in the workpiece | work of FIG. It is a front view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a rear view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a left view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a right view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a top view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a bottom view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is AA center sectional drawing of the front view of the boring bar sleeve of 4th Example which concerns on embodiment of this invention. It is a perspective view of the boring bar sleeve of the 4th example concerning an embodiment of this invention. It is the front view which represented the characteristic part of the boring bar sleeve of 4th Example based on embodiment of this invention with the continuous line, and was represented with the broken line. It is the rear view which represented the characteristic part of the boring bar sleeve of 4th Example which concerns on embodiment of this invention with the continuous line, and was represented with the broken line. It is the left view which represented the characteristic part of the boring bar sleeve of 4th Example based on embodiment of this invention with the continuous line, and others represented with the broken line. It is the right view which represented the characteristic part of the boring bar sleeve of 4th Example which concerns on embodiment of this invention with the continuous line, and was represented with the broken line. It is the top view which represented the characteristic part of the boring bar sleeve of 4th Example which concerns on embodiment of this invention with the continuous line, and others represented with the broken line. It is the bottom view which represented the characteristic part of the boring bar sleeve of 4th Example based on embodiment of this invention with the continuous line, and others represented with the broken line. It is AA center sectional drawing of the front view which represented the characteristic part of the boring bar sleeve of 4th Example based on Embodiment of this invention with the continuous line, and others were represented with the broken line. It is the perspective view which represented the characteristic part of the boring bar sleeve of 4th Example based on embodiment of this invention with the continuous line, and others represented with the broken line. It is a front view of a boring bar holder with a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. It is a rear view of the boring bar holder larger in diameter than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. It is a left view of the boring bar holder larger diameter than the diameter of the boring bar sleeve attached to one end part of the cylindrical boring bar sleeve of the 4th example concerning an embodiment of this invention. It is a right view of the boring bar holder larger diameter than the diameter of the boring bar sleeve attached to one end part of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. It is a top view of the boring bar holder larger in diameter than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. It is a bottom view of the boring bar holder larger in diameter than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. It is AA center sectional drawing of the front view of the boring bar holder larger diameter than the diameter of the boring bar sleeve attached to one end part of the cylindrical boring bar sleeve of 4th Example which concerns on embodiment of this invention. . It is a perspective view of a boring bar holder larger in diameter than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the front view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the rear view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the left view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the right view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the top view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the bottom view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is AA center sectional drawing of the front view represented with the broken line. The characteristic part of the boring bar holder having a diameter larger than the diameter of the boring bar sleeve attached to one end of the cylindrical boring bar sleeve of the fourth example according to the embodiment of the present invention is indicated by a solid line. It is the perspective view represented with the broken line.

A state in which the coolant supply means B is incorporated in a CNC lathe A used in general lathe processing will be described with reference to FIG. 10 showing a perspective view of a usage example of the fourth embodiment of the present invention.
The CNC lathe A is equipped with a platform on which a plurality of tools (boring bars 13) called turrets 01 are mounted, and has a mechanism for automatically exchanging tools depending on the shape to be cut. One of the mechanisms of the turret 01 includes a coolant supply mechanism or a coolant supply means B.
11 is a tool post. The tool post 11 is attached to the CNC lathe A. Reference numeral 12 denotes a coolant injection port which is the coolant supply means B. The coolant injection port 12 is provided on the front surface of the tool post 11. A boring bar sleeve 15 is attached to the front surface of the tool post 11. A boring bar 13 as a tool is attached to the boring bar sleeve 15. The tool post 11 is provided with a coolant injection port 12 in the vicinity of the base of the attached boring bar 13. A boring bar 13 as a tool is a coolant injection object.
In this embodiment, the coolant injected from the coolant injection port 12 is made of a liquid.
A flange 16 is provided with a space from the coolant injection port 12. Therefore, the boring bar sleeve 15 can be easily attached to the tool post 11.

Reference numeral 19 denotes an elbow which is the coolant supply means B. The elbow 19 is made of an L-shaped tube, and the base is attached to the coolant injection port 12. The tip of the elbow 19 is directed toward the boring bar sleeve 15. 18 is a coolant guide hole which is the coolant supply means B. The coolant guide hole 18 is provided in the boring bar sleeve 15.
21 is a workpiece and 17 is a coolant. Reference numeral 22 denotes an end face of the work 21. Reference numeral 14 denotes a cutting edge. The blade edge 14 is a location where coolant injection is necessary. The cutting edge 14 is attached to the tip of a boring bar 13 which is a coolant injection object.
The workpiece 21 is attached to the CNC lathe A and processed by the cutting edge 14. The coolant 17 is ejected from the coolant injection port 12.

In the fourth embodiment shown in FIGS. 7 to 10, the coolant guide hole 18 is provided in the boring bar sleeve 15 near the base of the boring bar 13.
The elbow 19 as the coolant supply means B is attached to the coolant injection port 12 as the coolant supply means B provided on the tool post 11, and adjustment is made so that the coolant enters the coolant guide hole 18 as the coolant supply means B. One or more coolant guide holes 18 are provided in accordance with the machine type and the position of the coolant injection port 12. The coolant guide hole 18 is bent internally so that the coolant inlet 181 and the coolant outlet 182 are substantially perpendicular.
In the fourth embodiment, the coolant guide hole 18 serves as a conversion location. In the fourth embodiment, the boring bar sleeve 15 serves as a coolant injection direction changing device.

When the coolant 17 is injected, the coolant 17 injected from the elbow 19 enters the coolant guide hole 18 from the coolant introduction port 181. The jet direction of the coolant 17 in the coolant guide hole 18 is converted into a substantially right angle direction.
The coolant passes through the coolant guide hole 18 and is injected from the coolant outlet 182 in parallel with the boring bar 13 from a position very close to the boring bar 13, and is supplied to the cutting edge 14 which is a coolant injection required portion.
This configuration can change the traveling direction of the coolant 17 injected from the elbow 19 at a short distance. In the fourth embodiment, the cutting edge 14 is a coolant injection required portion.

The elbow 19 and the coolant guide hole 18 which are the coolant supply means B are installed at a coolant injection direction changing portion provided in the vicinity of the coolant injection port 12 of the coolant injection object different from the coolant injection required portion. The elbow 19 and the coolant guide hole 18 change the injection direction of the coolant 17 injected from the coolant injection port 12, and the coolant injection direction is a boring bar in the work 21 that is a coolant injection required portion of the coolant injection object. Turn to 13 cutting edge 14.

In the first embodiment shown in FIGS. 1 to 4, a coolant guiding rod 16 as coolant supply means B is provided at the base of the boring bar 13 on the boring bar sleeve 15. The flange 16 is bent internally so that the bottom surface of the flange 16 is substantially perpendicular to the coolant introduction portion 161 and the coolant ejection portion 162. In the first embodiment, the ridge 16 is a conversion location. A flange 16 is provided with a space from the coolant injection port 12. Therefore, the boring bar sleeve 15 can be easily attached to the tool post 11.
The coolant 17 injected from the coolant injection port 12 that is the coolant supply means B provided on the tool post 11 enters the flange 16 from the coolant introduction portion 161. The jet direction of the coolant 17 is converted into a substantially right angle direction in the ridge 16. The coolant 17 is supplied from the root of the boring bar 13 along the boring bar 13 along the boring bar 13 bar to the boring bar 13 cutting edge 14 in the workpiece 21 which is a location where coolant is required to be injected.
In the first embodiment, the cutting edge 14 is a coolant injection required portion. In the first embodiment, the boring bar sleeve 15 serves as a coolant injection direction changing device.
The coolant guiding means 16 serving as the coolant supply means B converts the injection direction of the coolant 17 into a right angle and injects it horizontally with the boring bar 13.

FIG. 5 and FIG. 6 are component diagrams, and FIG. 5 shows a boring bar sleeve 15 according to the second embodiment. FIG. 6 shows a boring bar sleeve 15 according to the third embodiment.
As shown in the component drawing, the shape of the groove of the flange 16 serving as the conversion portion is a V-shaped cross section in the second embodiment shown in FIG. In the second and third embodiments, the boring bar sleeve 15 is a coolant injection direction changing device.

In the third embodiment illustrated in FIG. 6, the surface of the flange 16 serving as a conversion location is covered with a cover 163, and the coolant ejection portion 162 is opened. Since the surface of the flange 16 is covered with the cover 163, the coolant 17 is prevented from being scattered to the other side, and the coolant 17 is not wasted.
The coolant guiding means 16 serving as the coolant supply means B is installed at a coolant injection direction changing portion provided in the immediate vicinity of the coolant injection port 12 of the coolant injection object different from the coolant injection required portion. The coolant 17 injected from 12 is changed in the injection direction, and the coolant injection direction is directed to the boring bar 13 cutting edge 14 in the workpiece 21 which is a coolant injection required portion of the coolant injection object.

The fifth embodiment shown in FIGS. 11 to 13 is a sleeve 31 for a taper drill 32 provided with a morse taper 33 on its inner diameter. The coolant guide hole 18 of the fourth embodiment described in the previous section is used as the root of the taper drill 32. It is provided in the nearby sleeve 31.
The coolant guide hole 18 is bent internally so that the coolant inlet 181 and the coolant outlet 182 are substantially perpendicular. In the fifth embodiment, the coolant guide hole 18 serves as a conversion location. In the fifth embodiment, the sleeve 31 is a coolant injection direction changing device. A coolant guide hole 18 is provided in a space from the coolant injection port 12. Therefore, the attachment of the sleeve 31 to the tool post 11 is easy.
A boring bar holder 151 having a diameter larger than the diameter of the boring bar sleeve 15 is attached to one end of the cylindrical boring bar sleeve 15.

When the coolant 17 is injected, the coolant 17 injected from the elbow 19 serving as the coolant supply means B enters the coolant guide hole 18 serving as the coolant supply means B from the coolant introduction port 181. The jet direction of the coolant 17 in the coolant guide hole 18 is converted into a substantially right angle direction. The coolant passes through the coolant guide hole 18 and is injected from the coolant outlet 182 in parallel to the taper drill 32 from a position very close to the taper drill 32, and is supplied to the tip of the taper drill 32, which is a coolant injection required portion. This configuration can change the traveling direction of the coolant 17 injected from the elbow 19 at a short distance. In the fifth embodiment, the tip of the tapered drill 32 is the coolant injection required portion.

In the sixth embodiment shown in FIGS. 14 to 16, a straight arbor 41 for drill chuck is attached to the tool post 11. The coolant guide hole 18 is provided at the center of the Jacob stapler 42 of the straight arbor 41 for drill chuck. A coolant guide hole 18 is provided in a space from the coolant injection port 12. Therefore, the drill chuck straight arbor 41 can be easily attached to the tool post 11.
In the sixth embodiment, the core hole 44 of the drill chuck 43 is used and attention is paid to the structure in which the coolant 17 is injected from the claw 45 of the drill chuck 43 and the gap 47 between the chucked drill 46.
The coolant guide hole 18 that is the coolant supply means B is bent internally so that the coolant introduction port 181 and the coolant jet port 182 are substantially perpendicular. The coolant outlet 182 is the tip, and the tip is convex so that it can be fitted into the core hole 44 of the drill chuck 43. In the sixth embodiment, the coolant guide hole 18 becomes a conversion location. In the sixth embodiment, the drill chuck straight arbor 41 and the Jacob stapler portion 42 of the drill chuck straight arbor 41 serve as a coolant injection direction changing device.

When the coolant 17 is injected, the coolant 17 injected from the elbow 19 serving as the coolant supply means B enters the coolant guide hole 18 from the coolant introduction port 181. The jet direction of the coolant 17 in the coolant guide hole 18 is converted into a substantially right angle direction. The coolant passes through the coolant guide hole 18, enters the drill chuck straight arbor 41 from the coolant outlet 182, is injected along the drill 46 from a position very close to the drill 46, and is supplied to the tip of the drill 46 where coolant is required to be injected. Is done. This configuration can change the traveling direction of the coolant 17 injected from the elbow 19 at a short distance. In the sixth embodiment, the tip of the drill 46 is a location where coolant is required to be injected.

The elbow 19 that is the coolant supply means B and the coolant guide hole 18 are different in the coolant injection direction changing portion provided in the vicinity of the coolant injection port 12 that is the coolant supply means B of the coolant injection object that is different from the coolant injection required portion. Install in.
The elbow 19 and the coolant guide hole 18 change the injection direction of the coolant 17 injected from the coolant injection port 12, and the coolant injection direction of the coolant injection object needs to be injected through the core hole 44 of the drill chuck 43. The drill 46 is directed to the tip of the drill 46.

In the seventh embodiment shown in FIGS. 17 and 18, the boring bar sleeve 15 is provided with a coolant injection port 51 and a coolant injection port 52 as coolant supply means B. The coolant 17 injected from the coolant injection port 12 which is the coolant supply means B provided on the tool post 11 is injected into the coolant injection port 51 and injected from the coolant injection port 52. The coolant injection port 51 is provided with a space from the coolant injection port 12. Therefore, the boring bar sleeve 15 can be easily attached to the tool post 11.
The coolant injection port 51 and the coolant injection port 52 which are the coolant supply means B are bent inside so as to be substantially perpendicular. In the seventh embodiment, the coolant injection port 51 to the coolant injection port 52 serving as the coolant supply means B become the conversion location. In the seventh embodiment, the coolant inlet 51 and the boring bar sleeve 15 serve as a coolant injection direction changing device.
When the coolant 17 is injected, the coolant 17 injected from the coolant injection port 12 enters from the coolant injection port 51. Between the coolant injection port 51 and the coolant injection port 52, the jet direction of the coolant 17 is converted into a substantially right angle direction. The coolant is injected from the coolant injection port 52 in parallel to the boring bar 13 from a position very close to the boring bar 13 and is supplied to the cutting edge 14 which is a location where coolant is required to be injected. In the seventh embodiment, the cutting edge 14 is a coolant injection required portion.

In the eighth embodiment illustrated in FIGS. 19 and 20, the connection portion between the coolant inlet 51 and the boring bar sleeve 15 of the seventh embodiment is improved and a ball joint 61 is used as the base of the boring bar 13. Provide. As in the seventh embodiment, the basic structure is provided with a coolant injection port 61 and a coolant injection port 62 as coolant supply means B in the boring bar sleeve 15. A coolant injection port 61 is provided with a space from the coolant injection port 12. Therefore, the boring bar sleeve 15 can be easily attached to the tool post 11.
The coolant 17 injected from the coolant injection port 12 which is the coolant supply means B provided on the tool post 11 is injected into the coolant injection port 61 and then injected from the coolant injection port 62.

Since the connecting portion is the ball joint 61, the coolant 17 injected from the coolant injection port 12 does not leak to the other and the coolant 17 is not wasted.
The coolant injection port 61 and the coolant injection port 62 which are the coolant supply means B are bent inside so as to be substantially perpendicular to the coolant injection port 12. In the eighth embodiment, the coolant injection port 61 to the coolant injection port 62 which is the coolant supply means B becomes a conversion location. In the eighth embodiment, the coolant inlet 61 and the boring bar sleeve 15 serve as a coolant injection direction changing device.

When the coolant 17 is injected, the coolant 17 injected from the coolant injection port 12 enters from the coolant injection port 61. Between the coolant injection port 61 and the coolant injection port 62, the jet direction of the coolant 17 is converted into a substantially right angle direction. When injected from the coolant injection port 62, it is injected in parallel to the boring bar 13 from a position very close to the boring bar 13, and supplied to the cutting edge 14 which is a location where coolant is required to be injected. In the eighth embodiment, the cutting edge 14 is a coolant injection required portion.

In the ninth embodiment shown in FIGS. 21 and 22, the coolant supply means B directly enters the coolant guide hole 18 of the boring bar sleeve from the coolant injection port 12 which is the coolant supply means B provided on the tool post 11. A hose 71 and a joint 72 are provided at the base of the boring bar 13. The hose 71 and the joint 72 are used for connection and the coolant 17 is injected.
The coolant guide hole 18 is bent internally so that the coolant inlet 181 and the coolant outlet 182 are substantially perpendicular. In the ninth embodiment, the coolant guide hole 18 serves as a conversion location.

When the coolant 17 is injected, the coolant 17 injected from the hose 71 and the joint 72 enters the coolant guide hole 18 from the coolant introduction port 181. The jet direction of the coolant 17 in the coolant guide hole 18 is converted into a substantially right angle direction. It passes through the coolant guide hole 18 and is injected from the coolant outlet 182 in parallel to the boring bar 13 from a position very close to the boring bar 13, and is supplied to the cutting edge 14 which is a coolant injection required portion. In the ninth embodiment, the blade edge 14 is a coolant injection required portion. This configuration can change the traveling direction of the coolant 17 injected from the elbow 19 at a short distance.
In the ninth embodiment, the hose 71 and the boring bar sleeve 15 serve as a coolant injection direction changing device.

The tenth embodiment shown in FIGS. 23 and 24 is provided at the base of the boring bar 13 using the attachment type 81 when the hole 83 provided in the tool post 11 and the diameter of the boring bar 13 are the same. Since the attachment type 81 is fixed by the side lock screw 82, the coolant guide hole 18 can be fixed at an arbitrary place. In the tenth embodiment, the blade edge 14 is a coolant injection required portion.
The coolant guide hole 18 is bent internally so that the coolant introduction port 181 and the coolant jet port 182 are substantially perpendicular to each other. In the tenth embodiment, the coolant guide hole 18 serves as a conversion location. A coolant guide hole 18 is provided in a space from the coolant injection port 12. Therefore, the boring bar 13 and the attachment type 81 can be easily attached to the tool post 11.

When the coolant 17 is injected, the coolant 17 injected from the coolant guide hole 18 serving as the coolant supply means B enters the coolant guide hole 182 serving as the coolant supply means B from the coolant introduction port 181. The jet direction of the coolant 17 in the coolant guide hole 18 is converted into a substantially right angle direction. The coolant 17 passes through the coolant guide hole 18 and is injected from the coolant outlet 182. Further, the coolant 17 is injected in parallel to the boring bar 13 from a position very close to the boring bar 13 and is supplied to the cutting edge 14 which is a location where coolant is required to be injected.
This configuration can change the traveling direction of the coolant 17 injected from the elbow 19 at a short distance. In the tenth embodiment, the attachment type 81 is a coolant injection direction changing device.

25 and FIG. 26 is an eleventh embodiment in which a rectifying plate 93 is provided in the coolant guide hole 18 of the fourth embodiment. This is applicable to all embodiments.

In the twelfth embodiment shown in FIGS. 27 and 28, a hole 93 as coolant supply means B is formed in a portion protruding from the tool post 11 of the straight shank portion 92 of the collet chuck 91, and a relief 94 at the rear end portion of the collet. And penetrated. A hole 93 that is a coolant supply means B is provided by leaving a space from the coolant injection port 12. Therefore, it becomes easy to attach the straight shank portion 92 to the tool post 11.
When the coolant 17 is injected from the coolant injection port 12 serving as the coolant supply means B through the elbow 19 serving as the coolant supply means B, the coolant 17 enters the relief 94 at the rear end of the collet and passes through the gap between the collets 95 and the drill 46. The coolant 17 is applied. The hole 93 is bent inside so as to be substantially perpendicular.
In the twelfth embodiment, the hole 93 is a conversion location. In the twelfth embodiment, the tip of the drill 46 is a coolant injection required portion. In the twelfth embodiment, the collet chuck 91 is a coolant injection direction changing device.

In the thirteenth embodiment shown in FIGS. 29 and 30, an infinite number of coolant guide holes 18 are provided in the cover 97 of the reverse collet chuck 96. When the coolant is injected from the coolant injection port 12 that is the coolant supply means B of the tool post 11, the coolant 17 is passed through the elbow 19 that is the coolant supply means B into the coolant guide hole 18 that is the coolant supply means B of the cover 97. It is injected and applied to the drill 46. A coolant guide hole 18 is provided in a space from the coolant injection port 12. For this reason, the reverse collet chuck 96 can be easily attached to the tool post 11.
The coolant guide hole 18 is bent inside so as to be substantially perpendicular.
In the thirteenth embodiment, the coolant guide hole 18 serves as a conversion location. In the thirteenth embodiment, the tip of the drill 46 is a coolant injection required portion. In the tenth embodiment, the reverse collet chuck 96 to the cover 97 serve as a coolant injection direction changing device.

In the embodiments of these inventions, the coolant 17 is once provided in the vicinity of the coolant injection port 12 of the coolant injection object, which is different from the cutting edge 14 and the drill 46, which are coolant injection required portions, from the coolant injection port. Injected downwards substantially vertically toward the conversion point.
Next, the coolant 17 injection direction is changed, and the coolant 17 injection direction is supplied to the blade edge 14 which is the coolant injection required portion with the coolant 17 injection direction directed toward the blade edge 14 which is the coolant injection required portion of the coolant injection object. Therefore, in the embodiment of the present invention, the distance between the coolant injection port 12 and the boring bar 13 is extremely shortened, and the coolant 17 is easily supplied from the root to the blade (boring bar 13) and supplied to the cutting edge 14.

That is, the distance between the coolant injection port 12 and the coolant injection object is extremely shortened, and the coolant supply device, the coolant supply method, and the coolant injection that easily supply the coolant 17 along the coolant injection object from the root to the coolant injection required point 14 are provided. A direction changing device is provided.
And it is inexpensive and can be used regardless of the length of the tool rest, the inner diameter depth of the workpiece, and the machine model year without using special equipment. It is highly versatile and ensures that coolant is guided from the root to the tool. Provided is a coolant supply means that can be reached and that a large amount of coolant can be supplied to the cutting tool, thereby extending the tool life and quenching the chip immediately after cutting, causing cracks to be reduced and increasing chip discharging efficiency.

11 Tool post 12 Coolant injection port (Coolant supply means B)
13 Boring bar (coolant injection object)
14 Cutting edge (required coolant injection point)
15 Boring bar sleeve 16 樋 (conversion location, coolant supply means B)
17 Coolant 18 Coolant guide hole (conversion location, coolant supply means B)
21 Workpiece 22 Workpiece end surface B Coolant supply means

Claims (7)

Coolant is injected from the coolant injection port provided on the tool post to a conversion point provided near the mounting part of the coolant injection object on the tool post that is different from the coolant injection required part. A coolant supply device that changes the injection direction and directs the coolant injection direction toward the coolant injection required portion of the coolant injection object. Coolant is injected from the coolant injection port provided on the tool post to a conversion point provided near the mounting part of the coolant injection object on the tool post that is different from the coolant injection required part. A coolant supply method in which the injection direction is changed and the coolant injection direction is directed to the coolant injection required portion of the coolant injection object. Installed at the coolant injection direction changing part provided near the mounting part of the coolant injection target provided on the tool post to the tool post, and changing the injection direction of the coolant injected from the coolant injection port with a space. And a coolant injection direction changing device that directs the coolant injection direction to the coolant injection required portion of the coolant injection object. The coolant according to any one of claims 1 and 3, wherein a scissor or a guide hole is provided so that the coolant can be attached to the boring bar or drill and the coolant is injected from a position very close to the outer diameter of the boring bar or drill. Feeding device. The coolant supply device according to any one of claims 1, 3, or 4, wherein the guide hole is provided with a current plate or an inclination, or both the current plate and the inclination are provided. 6. The coolant supply device according to claim 1, wherein the coolant injection port is provided at a central portion of the Jacob stapler of the drill chuck arbor, and the coolant injection port is provided on a side surface of the arbor. The coolant according to claim 1, claim 3, claim 4, claim 5, claim 6, or claim 7, wherein a funnel-like attachment or a funnel-like attachment with a ball joint is added to the coolant inlet. Feeding device.

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