JPH0596444A - Tool holder - Google Patents

Abstract

PURPOSE:To inject cutting oil and compressed air toward the point end part of a tool from above and below at a suitable angle. CONSTITUTION:A through hole 13 for circulating cutting oil along the lengthwise direction is provided above a groove 12 in the inside of a supporting base 11. A through hole 14 and a communication hole 15 for circulating compressed air along the lengthwise direction are provided above and below the groove 12 in the inside of the supporting base 11. The first/second nozzles 16, 17 connected to the through holes 13, 14 are provided above a front end part of the supporting base 11. The third nozzle 18 connected to the communication hole 15 is provided below the front end part of the supporting base 11. By circulating the cutting oil in the through hole 13 of the supporting base 11, the cutting oil is injected by the first nozzle 16 at a suitable angle from above toward a rake face in the point end part of a tool 45. Compressed air is circulated in the through hole 14 and the communication hole 15 of the supporting base 11. The compressed air is injected by the second/third nozzles 17, 18 toward the point end part of the tool 45 from above and below at a suitable angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bite holder suitable for holding a bite of a cutting tool used for a machine tool such as a lathe.

[0002]

2. Description of the Related Art FIG. 21 shows a conventional bite holder.
As shown in FIG. 3, a groove 2 that opens laterally along the longitudinal direction is formed in the support base 1, and a plurality of screw holes 3 are provided between the upper surface of the support base 1 and the groove 2, respectively. A bolt 4 is screwed into the screw hole 3, a bite 5 is fixed to the groove 2 of the support 1 with a plurality of bolts 4, and a cutting oil is applied to the rake face of the tip of the bite 5 above the front of the support 1. A first nozzle 6 for injecting is provided, and a second nozzle 7 and a third nozzle 8 for injecting compressed air are provided above and below the front part of the support base 1 at the tip of the cutting tool 5, respectively. An oil pipe 9 for supplying cutting oil is connected to the nozzle 6 and an air pipe 10 for supplying compressed air to the second nozzle 7 and the third nozzle 8.
It is known that these are connected.

[0003]

However, in the conventional bite holder, the tip of the first nozzle 6 is manually bent by aligning the oil pipe 9 with the squeeze surface of the tip of the bite 5, or by the second bite. The tips of the nozzle 7 and the third nozzle 8 must be aligned above and below the tip of the cutting tool 5 by bending the air pipe 10 by hand, and the first nozzle 6, the second nozzle 7, and the third nozzle Since the nozzle 8 of No. 2 interferes with the cutting work of the work piece with the cutting tool 5, the tips of the first nozzle 6, the second nozzle 7, and the third nozzle 8 cannot be brought close to the tip of the cutting tool 5.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by merely holding a bite in a bite holding portion of a support base.
The tip of the bite of the first nozzle can be aligned with the squeeze surface of the bite, and at the same time, the alignment of the tip of the bite of the second nozzle and the third nozzle can be aligned with the first nozzle. It is not necessary to bend the No. 2 nozzle and the No. 3 nozzle to the tip of the cutting tool by manually bending the oil pipe and the air pipe, and the No. 1 nozzle, the No. 2 nozzle, and the No. 3 nozzle to the tip of the cutting tool. When cutting the workpiece with the cutting tool held in the cutting tool holding section of the supporting table, the cutting oil flows through the oil passage inside the supporting table, and the first nozzle transfers the cutting oil to the tip of the cutting tool. After spraying from above from an appropriate angle toward the rake face of the machine, and after the cutting work of the work piece is completed, the compressed air flows through the first air passage and the second air passage inside the support base. , The second nozzle and the third nozzle Le is toward the distal end of the byte of compressed air jetted from each of the upper and lower appropriate angles,
An object of the present invention is to provide a bite holder capable of blowing off the cutting dust wound around the tip part of the cutting tool by the compressed air sprayed from the second nozzle and the third nozzle to remove it.

[0005]

In the bite holder of the present invention, a tool holding part is formed on a supporting table, and an oil for circulating cutting oil is provided above the cutting tool holding part inside the supporting table along the longitudinal direction. A passage is provided, and a first air passage and a second air passage, through which compressed air flows along the longitudinal direction, are provided above and below the cutting tool holding portion inside the support base, respectively, and the front end of the support base is provided. Above the oil passage and the first
No. 1 and No. 2 nozzles communicating with the air passage of No. 3 are provided, and a third nozzle communicating with the second air passage is provided below the front end portion of the support base. It is a thing.

[0006]

The cutting tool holding section formed on the supporting table holds the cutting tool, and the cutting tool cuts the work.

Further, when cutting a work piece with a cutting tool, cutting oil circulates in an oil passage provided along the longitudinal direction above the cutting tool holding portion inside the support table and above the front end portion of the support table. The first nozzle communicating with the provided oil passage injects cutting oil from above the proper angle toward the rake surface of the tip of the cutting tool.

Further, after the cutting of the work piece by the cutting tool is completed, compressed air is provided above and below the cutting tool holding section inside the support along the longitudinal direction, respectively.
Of the compressed air toward the tip of the bite by a second nozzle that flows through the first air passage provided above the front end of the support base and that flows through the second air passage and the second air passage. At the same time as jetting from above, the second unit provided below the front end of the support base
No. 3 that communicates with the air passage of No. 3 injects compressed air toward the tip of the cutting tool from below at an appropriate angle, and the cutting dust wound around the tip of the cutting tool is sprayed from the second and third nozzles. Blow away with compressed air to remove.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1, reference numeral 11 denotes a support base. As shown in FIG. 2, the support base 11 is formed with a groove 12 which serves as a bite holding portion which opens laterally along the longitudinal direction. A through hole 13 serving as an oil passage for circulating cutting oil along the longitudinal direction is provided above the groove 12 inside 11 and above and below the groove 12 inside the support 11 along the longitudinal direction. A through hole 14 that serves as a first air passage and a communication hole 15 that serves as a second air passage are provided.

As shown in FIGS. 1 and 2, a first nozzle 16 and a second nozzle 17 communicating with the through hole 13 and the through hole 14 are provided above the front end of the support base 11, and A communication hole 1 is provided below the front end of the support 11.
A third nozzle 18 leading to No. 5 is provided.

As shown in FIG. 1, a receiving piece 19 projecting forward is formed near the center of the front end of the support base 11, and a front portion near the upper edge of the support base 11 is shown in FIG. As shown, a holding plate 20 serving as a first nozzle tip is arranged, and a partition plate 21 serving as a second nozzle tip is arranged between the receiving piece 19 of the support base 11 and the holding plate 20. Was
A pressing plate 22 serving as a third nozzle tip is provided in the front portion near the lower edge of the support base 11.

As shown in FIG. 3, a flat surface portion 23 is formed near the upper edge of the front end of the support base 11, and a tapered female screw opening rearward is provided near the upper edge of the rear end of the support base 11. A hole 24 is formed, and a through hole 13 is provided between the flat surface portion 23 of the support base 11 and the inner end of the tapered female screw hole 24 along the horizontal axis direction.

On both sides of the flat portion 23 of the support base 11,
As shown in FIG. 4, a female screw hole 2 opening forward
5 and 25 are formed respectively, and the through hole 13 is formed in the flat portion 23 of the support base 11 at a position corresponding to above the groove 12.
A guide groove 26 is formed which is open to the front and communicates with the guide groove 26.

In the taper female screw hole 24 of the support base 11,
As shown in FIG. 1, the tapered male screw portion 28 of the pipe joint 27 is shown.
Is connected to the pipe joint 27, and an oil pipe 29 for circulating cutting oil is connected to the pipe joint 27.
A cutting oil supply means (not shown) for supplying cutting oil is connected to the through hole 13.

The upper surface of the receiving piece 19 of the support base 11 is shown in FIG.
As shown in FIG. 3, an inclined portion 30 that is inclined obliquely downward is formed, and a tapered female screw hole 31 that opens rearward is formed at the rear end of the support base 11.
A through hole 14 is provided between the inclined portion 30 of the receiving piece 19 and the inner end of the tapered female screw hole 31 along the same central axis direction as the through hole 13.

As shown in FIG. 4, the inclined portion 30 of the receiving piece 19 of the support base 11 is formed with a concave groove 32 that opens obliquely upward at a position corresponding to the upper portion of the groove 12, and the receiving portion 19 also receives the concave groove 32. A guide groove 33, which communicates with the through hole 14 and opens toward the front, is formed on the side of the concave groove 32 of the inclined portion 30 of the piece 19, and the concave groove 32 of the inclined portion 30 of the support base 11 is the guide groove 3.
It is communicated with the through hole 13 through 3.

In the taper female screw hole 31 of the support base 11,
As shown in FIG. 1, the tapered male screw portion 35 of the pipe joint 34 is provided.
Is connected to the pipe joint 34, and an air pipe 36 for circulating compressed air is connected to the pipe joint 34. An air supply means (not shown) for supplying compressed air to the through hole 14 of the support 11 is connected to the air pipe 36. There is.

As shown in FIGS. 3 and 4, the lower surface of the support base 11 near the front end is a female screw hole 3 which opens downward.
7 is formed, and a communication hole 38 is provided between the front end of the through hole 14 of the support 11 and the inner end of the female screw hole 37 along the vertical axis direction intersecting with the through hole 14.

As shown in FIGS. 1 and 2, a plug 39 is screwed into the female screw hole 37 of the support base 11 to support the support base 11
The lower end of the communication hole 38 is closed by a plug 39.

A flat surface portion 40 is formed near the lower edge of the front end of the support base 11 as shown in FIG.
As shown in FIG. 4, female screw holes 41, 41 opening forward are formed on both sides of the flat portion 40 of No. 1, respectively.

The bottom surface of the receiving piece 19 of the support base 11 is shown in FIG.
As shown in FIG. 3, an inclined portion 42 inclined obliquely upward is formed, and the through hole 14 is provided between the flat surface portion 40 of the support 11 and the inclined portion 42 of the receiving piece 19 and the lower end of the communication hole 38.
A communication hole 15 is provided along the same central axis direction as that of the support hole 11. The communication hole 15 of the support base 11 is connected to the through hole 14 through the communication hole 38.
It is in communication with.

As shown in FIG. 4, the inclined portion 42 of the receiving piece 19 of the support base 11 is provided with a concave groove 43 which opens obliquely downward at a position corresponding to the lower portion of the groove 12 and is provided with a receiving groove. A guide groove 44 that communicates with the communication hole 15 and opens toward the front is formed on the side of the concave groove 43 of the inclined portion 42 of the piece 19, and the concave groove 4 of the inclined portion 42 of the receiving piece 19 of the support base 11 is formed.
3 is communicated with the communication hole 15 through the guide groove 44.

As shown in FIGS. 1 and 2, a bite 45 is arranged in the groove 12 of the support base 11, and between the upper surface of the support base 11 and the groove 12 is shown in FIGS. 3 and 4. As described above, a plurality of screw holes 46 are provided at regular intervals in the longitudinal direction, bolts 47 are respectively screwed into the screw holes 46 of the support base 11 from above, and the bite 45 is formed in the groove 12 of the support base 11. It is fixed by a plurality of bolts 47.

The front portion of the flat portion 23 of the support 11 is shown in FIG.
As shown in FIG. 2, a holding plate 20 is arranged, and fitting holes 48, 48 opening forward are formed on both sides of the front surface of the holding plate 20, as shown in FIG.
Between the inner ends of the fitting holes 48, 48 of the holding plate 20 and the back surface, as shown in FIG. 6, through holes 49, 49 communicating with the female screw holes 25, 25 of the flat surface portion 23 of the support base 11. Are provided respectively.

As shown in FIGS. 5 and 6, an inclined portion 50 inclined along the inclined portion 30 of the receiving piece 19 of the support 11 is formed on the lower surface of the pressing plate 20, and the pressing plate 20 is also formed.
In the inclined portion 50, a concave groove 51 that opens obliquely downward is formed at a position corresponding to above the groove 12 of the support base 11.

A partition plate 21 is disposed between the inclined portion 30 of the receiving piece 19 of the support base 11 and the inclined portion 50 of the pressing plate 20, as shown in FIGS. 1 and 2, and the lower surface of the partition plate 21. As shown in FIGS. 7 and 8, an inclined surface 52 that is inclined along the inclined portion 30 of the receiving piece 19 of the support base 11 is formed on the upper surface of the partition plate 21, and the inclined surface of the holding plate 20 is formed on the upper surface of the partition plate 21. An inclined surface 53 that is inclined along the portion 50 is formed.

As shown in FIG. 9, the inclined surface 52 of the partition plate 21 is engaged with the inclined portion 30 of the receiving piece 19 of the support 11, and the pressing plate 20 is attached to the inclined surface 53 of the partition plate 21. The inclined portion 50 of the
The back surfaces of the retainer plate 20 and the partition plate 21 are in contact with each other.

Bolts 54, 54 are inserted from the front into the through holes 49, 49 of the holding plate 20, and the tips of the bolts 54, 54 are respectively screwed into the female screw holes 25, 25 of the flat portion 23 of the support base 11. The head of the bolt 54 is fitted into the fitting hole 48 of the holding plate 20, and the holding plate 20 is attached to the flat surface portion 23 of the support base 11 with the bolts 54, 54 as shown in FIG.
The partition plate 21 is fixed to the upper portion of the inclined portion 30 of the receiving piece 19 of the support base 11 by the holding plate 20, and the concave groove 51 of the inclined portion 50 of the holding plate 20 is fixed by the support base 11.
It is communicated with the through hole 13 through the guide groove 26 of the flat portion 23.

As shown in FIG. 9, the front opening of the through hole 13 of the flat portion 23 of the support 11 and the front opening of the guide groove 26 are closed by the back surfaces of the holding plate 20 and the partition plate 21, as shown in FIG. A sealing material (not shown) is provided between the flat surface portion 23 of the support 11 and the back surfaces of the pressing plate 20 and the partition plate 21.

Further, the inclined portion 3 of the receiving piece 19 of the support base 11
The front opening of the through hole 14 of 0, the front opening of the guide groove 33 and the opening of the groove 32 diagonally above are closed by the inclined surface 52 of the partition plate 21, and the inclination of the receiving piece 19 of the support base 11 is increased. A sealing material (not shown) is provided between the portion 30 and the inclined surface 52 of the partition plate 21.

Further, the concave groove 5 of the inclined portion 50 of the holding plate 20
1 is closed by an inclined surface 53 of the partition plate 21, and a sealing material (not shown) is provided between the inclined portion 50 of the holding plate 20 and the inclined surface 53 of the partition plate 21. There is.

As shown in FIG. 9, the opening in front of the concave groove 51 of the inclined portion 50 of the holding plate 20 serves as the first nozzle 16 and the inclined portion 30 of the receiving piece 19 of the support 11 is formed. The opening in front of the groove 32 serves as the second nozzle 17, and
Nozzle 16 faces toward the rake face of the tip of the cutting tool 45, and the second nozzle 17 faces above the tip of the cutting tool 45.

The front portion of the flat portion 40 of the support 11 is shown in FIG.
Further, as shown in FIG. 2, the holding plate 22 is arranged, and fitting holes 55, 55 opening forward are formed on both sides of the front surface of the holding plate 22, as shown in FIG. Between the inner ends of the fitting holes 55, 55 of the holding plate 22 and the back surface, as shown in FIG. 11, through holes 56, 56 communicating with the female screw holes 41, 41 of the flat surface portion 40 of the support base 11. Are provided respectively, and an inclined surface 57 that is inclined along the inclined portion 42 of the receiving piece 19 of the support 11 is formed on the upper surface of the pressing plate 22.

As shown in FIG. 9, the inclined surface 57 of the holding plate 22 is engaged with the inclined portion 42 of the receiving piece 19 of the support base 11, and the back surface of the holding plate 22 is attached to the flat surface portion 40 of the support base 11. Are abutted.

Bolts 58 and 58 are inserted from the front into the through holes 56 and 56 of the holding plate 22, and the tips of the bolts 58 and 58 are respectively screwed into the female screw holes 41 and 41 of the flat surface portion 40 of the support base 11. The head portion of the bolt 58 is fitted into the fitting hole 55 of the holding plate 22, and the holding plate 22 is attached to the flat surface portion 40 of the support base 11 with the bolts 58, 58 as shown in FIG.
It is fixed by.

As shown in FIG. 9, the front portion of the flat surface 40 of the support base 11 and the front of the communication hole 15 of the inclined portion 42 is closed by the back surface of the holding plate 22, and the flat surface portion 40 of the support base 11 is closed.
A sealing material (not shown) is provided between the press plate 22 and the back surface of the holding plate 22.

Further, the inclined portion 4 of the receiving piece 19 of the support base 11
The diagonally downward opening of the concave groove 43 and the front opening of the guide groove 44 are closed by the inclined surface 57 of the pressing plate 22, and the inclined portion 42 of the receiving piece 19 of the support 11 and the inclined surface of the pressing plate 22 are closed. A seal member (not shown) is provided between the seal member 57 and the seal member 57.

As shown in FIG. 9, the front opening of the concave groove 43 of the inclined portion 42 of the receiving piece 19 of the support base 11 serves as the third nozzle 18, and the third nozzle 18 is the tip of the cutting tool 45. It is facing downwards.

Next, the operation of this embodiment will be described.

First, after the support base 11 is attached to a machine tool such as a lathe, when the cutting oil supply means supplies the cutting oil to the oil pipe 29, the cutting oil supplies the through hole 13, the guide groove 26 and the presser foot of the support base 11. The first nozzle 16 circulates through the concave groove 51 of the plate 20 and injects the cutting oil toward the rake face of the cutting tool 45 from above at an appropriate angle, so that the workpiece is grooved to the groove 12 of the support base 11.
The cutting work is performed by the cutting tool 45 fixed to.

After the cutting of the workpiece with the cutting tool 45 is completed, the air supply means supplies the compressed air to the air pipe 36, and one of the compressed air passes through the through hole 1 of the support 11.
4, while flowing through the guide groove 33 and the recessed groove 32, the other side of the compressed air flows through the through hole 14, the communication hole 38, the communication hole 15, the guide groove 44 and the recessed groove 43 of the support base 11, and the second nozzle 17 and the third nozzle 18 turn the compressed air into a bite 45.
The cutting dust is sprayed from above and below at an appropriate angle toward the tip of the cutting tool, and the cutting chips wound around the cutting tool 45 are blown away by the compressed air sprayed from the second nozzle 17 and the third nozzle 18.

FIG. 12 shows another embodiment of the present invention. As shown in FIG. 13, the support base 60 is opened laterally along the longitudinal direction as in the embodiment shown in FIG. Groove 1
2 is formed above the groove 12 inside the support base 60, and a through hole 13 serving as an oil passage for flowing cutting oil along the longitudinal direction.
In addition, the through hole 14 and the communication hole 15 are provided above and below the groove 12 inside the support 60 along the longitudinal direction for passing compressed air.

As shown in FIGS. 12 and 13, a first nozzle 61 and a second nozzle 62 communicating with the through hole 13 and the through hole 14 are provided above the front end of the support base 60, respectively. A third nozzle 63 communicating with the communication hole 15 is provided below the front end of the support base 60.

In the vicinity of the center of the front end of the support base 60, as shown in FIG.
As shown in FIG. 13, a receiving piece 64 projecting forward is formed, and at the front portion near the upper edge of the support base 60, as shown in FIG. 13, as in the embodiment shown in FIG. And a partition plate 65 serving as a second nozzle chip is disposed between the receiving piece 64 of the support base 60 and the pressing plate 20, and a front portion near the lower edge of the support base 60 is provided. A holding plate 66 that serves as a third nozzle tip is provided.

The upper surface of the receiving piece 64 of the support base 60 is shown in FIG.
As shown in FIG. 4, the slanted portion 67 slanted downward.
15 is formed, the inclined portion 67 of the receiving piece 64 of the support base 60 has a guide groove that is open to the front and communicates with the through hole 14 at a position corresponding to the upper portion of the groove 12, as shown in FIG. 68 is formed.

The bottom surface of the receiving piece 64 of the support base 60 is shown in FIG.
As shown in FIG. 4, an inclined portion 69 inclined obliquely upward.
As shown in FIG. 15, in the inclined portion 69 of the receiving piece 64 of the support base 60, a guide groove that is open to the front and communicates with the communication hole 15 is formed at a position corresponding to the lower portion of the groove 12. 70 is formed.

Since the other structure of the support base 60 is exactly the same as that of the embodiment shown in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG.
2 and FIG. 13, the holding plate 20 is arranged similarly to the embodiment of FIG. 1, and the structure of the holding plate 20 is exactly the same as that of the embodiment shown in FIG. 5 and FIG. Is attached and the description is omitted.

A partition plate 65 is disposed between the sloped portion 67 of the receiving piece 64 of the support base 60 and the sloped portion 50 of the pressing plate 20 as shown in FIGS. 12 and 13, and the lower surface of the partition plate 65. As shown in FIG. 16 and FIG.
The inclined surface 71 inclined along the inclined portion 67 of the receiving piece 64 of
And the pressing plate 2 is formed on the upper surface of the partition plate 65.
The inclined surface 72 is formed along the inclined portion 50 of 0, and the groove 12 of the support base 60 is formed on the inclined surface 71 of the partition plate 65.
A recessed groove 73 is formed at a position corresponding to the upper part of the above so as to open obliquely downward.

As shown in FIG. 18, the inclined surface 71 of the partition plate 65 is engaged with the inclined portion 67 of the receiving piece 64 of the support base 60, and the pressing plate 20 is attached to the inclined surface 72 of the partition plate 65. Of the flat portion 2 of the support base 60 by engaging the inclined portion 50 of the
The back surfaces of the holding plate 20 and the partition plate 65 are in contact with the sheet 3, respectively.

As in the embodiment shown in FIG. 2, the bolts 54, 54 are inserted from the front into the through holes 49, 49 of the holding plate 20, respectively, and the female screw hole 2 of the flat surface portion 23 of the support base 60 is inserted.
The tips of the bolts 54, 54 are screwed into the screws 5, 25, the head of the bolt 54 is fitted in the fitting hole 48 of the holding plate 20, and the holding plate 20 is supported as shown in FIG. Stand 6
The partition plate 65 is fixed to the flat surface portion 23 of the support member 0 by the bolts 54, 54, and the partition plate 65 is fixed to the upper portion of the inclined portion 67 of the receiving piece 64 of the support base 60 by the holding plate 20. The groove 51 communicates with the through hole 13 via the guide groove 26 of the flat surface portion 23 of the support base 60, and the concave groove 73 of the inclined surface 71 of the partition plate 65 guides the guide groove of the inclined portion 67 of the receiving piece 64 of the support base 60. It is communicated with the through hole 14 via 68.

As shown in FIG. 18, the front opening of the through hole 13 of the flat portion 23 of the support base 60 and the front opening of the guide groove 26 are closed by the back surfaces of the holding plate 20 and the partition plate 65, as shown in FIG. A sealant (not shown) is provided between the flat surface portion 23 of the support base 60 and the back surfaces of the pressing plate 20 and the partition plate 65.

Further, the inclined portion 6 of the receiving piece 64 of the support base 60
A part of the front opening of the through hole 14 of FIG. 7 and the front opening of the guide groove 68 is closed by the inclined surface 71 of the partition plate 65, and obliquely below the concave groove 73 of the inclined surface 71 of the partition plate 65. A part of the opening of the support plate 60 is closed by the inclined portion 67 of the receiving piece 64 of the support base 60, and the sealing material is provided between the inclined portion 67 of the receiving piece 64 of the support base 60 and the inclined surface 71 of the partition plate 65 (see FIG. (Not shown).

Further, the concave groove 5 of the inclined portion 50 of the pressing plate 20
The opening on the diagonally lower side of 1 is closed by the inclined surface 72 of the partition plate 65, and a sealing material (not shown) is provided between the inclined portion 50 of the holding plate 20 and the inclined surface 72 of the partition plate 65. There is.

As shown in FIG. 18, the opening in front of the concave groove 51 of the inclined portion 50 of the holding plate 20 serves as the first nozzle 61 and the concave groove 73 of the inclined surface 71 of the partition plate 65. The front opening is the second nozzle 62, the first nozzle 61 faces the rake face of the tip of the cutting tool 45, and the second nozzle 62 faces the top of the cutting tool 45. There is.

The front portion of the flat portion 40 of the support base 60 is shown in FIG.
As shown in FIG. 2 and FIG. 13, a holding plate 66 is arranged, and on both sides of the front face of the holding plate 66, as shown in FIG.
Fitting holes 74, 74 that open toward the front are formed, respectively, and between the inner ends of the fitting holes 74, 74 of the pressing plate 66 and the back surface, as shown in FIG. Part 40
Through holes 75, 75 communicating with the female screw holes 41, 41 are provided respectively, and an inclined surface 76 inclined along the inclined portion 69 of the receiving piece 64 of the support base 60 is formed on the upper surface of the pressing plate 66. At the same time, the support base 60 is attached to the inclined surface 76 of the pressing plate 66.
A groove 77 that opens obliquely upward is formed at a position corresponding to the lower portion of the groove 12.

As shown in FIG. 18, the inclined surface 76 of the pressing plate 66 is engaged with the inclined portion 69 of the receiving piece 64 of the support base 60, and the flat surface portion 40 of the support base 60 has the back surface of the pressing plate 66. Are abutted.

Bolts 78 and 78 are inserted from the front into the through holes 75 and 75 of the holding plate 66, and the tips of the bolts 78 and 78 are respectively screwed into the female screw holes 41 and 41 of the flat portion 40 of the support base 60. The head of the bolt 78 is fitted into the fitting hole 74 of the holding plate 66, and the holding plate 66 is attached to the flat surface portion 40 of the support base 60 with the bolts 78, 7 as shown in FIG.
And the concave groove 77 of the inclined surface 76 of the holding plate 66.
Is communicated with the communication hole 15 through the guide groove 70 of the receiving piece 64 of the support base 60.

As shown in FIG. 18, the flat portion 40 of the support base 60 and the front opening of the communication hole 15 of the inclined portion 69 are closed by the back surface of the holding plate 66, and the flat surface portion 4 of the support base 60 is closed.
A sealing material (not shown) between 0 and the back surface of the holding plate 66.
Is provided.

Further, the inclined portion 6 of the receiving piece 64 of the support base 60
A part of the front opening of the guide groove 70 of 9 is closed by the inclined surface 76 of the pressing plate 66, and a part of the opening of the inclined surface 76 of the pressing plate 66 obliquely above the concave groove 77 is supported by the support base. 60
Is blocked by the inclined portion 69 of the receiving piece 64 of the
A sealing material (not shown) is provided between the inclined portion 69 of the receiving piece 64 and the inclined surface 76 of the pressing plate 66.

The opening in front of the concave groove 77 of the inclined surface 76 of the pressing plate 66 is a third nozzle 63 as shown in FIG. 18, and the third nozzle 63 is located below the tip of the cutting tool 45. It is facing you.

Next, the operation of this embodiment will be described.

First, after mounting the support base 60 on a machine tool such as a lathe, when the cutting oil supply means supplies the cutting oil to the oil pipe 29, the cutting oil causes the cutting oil to penetrate the through hole 13, the guide groove 26 and the presser foot. The first nozzle 61 circulates through the concave groove 51 of the plate 20 and jets the cutting oil toward the rake face of the cutting tool 45 from above at an appropriate angle, so that the workpiece is groove 12 of the support base 60.
The cutting work is performed by the cutting tool 45 fixed to.

After the cutting of the work piece by the cutting tool 45 is completed, the air supply means supplies the compressed air to the air pipe 36, and one of the compressed air passes through the through hole 1 of the support base 60.
4, while flowing through the guide groove 68 and the recessed groove 73 of the partition plate 65, the other side of the compressed air passes through the through hole 14 of the support base 60.
The communication hole 38, the communication hole 15, the guide groove 70, and the concave groove 77 of the holding plate 66 flow, and the second nozzle 62 and the third nozzle 63 direct the compressed air toward the tip of the cutting tool 45 at an appropriate angle. The cutting waste, which is sprayed from above and below and is wound around the cutting tool 45, is supplied to the second nozzle 62 and the third nozzle 6 respectively.
It is blown away and removed by the compressed air injected from 3.

By exchanging the first nozzle tip with respect to the support base, it is possible to change the angle of the cutting oil jetted from the first nozzle toward the rake surface of the tip of the cutting tool. By replacing the second nozzle tip and the third nozzle tip with respect to the support base, the second nozzle and the third nozzle tip can be replaced.
It is also possible to change the angle of the compressed air jetted from the nozzle to the tip of the bite.

Further, if a cock for adjusting the flow rate of cutting oil is provided in the oil pipe, the injection amount of cutting oil from the first nozzle can be changed by the cock, and the flow rate of compressed air can be adjusted in the air pipe. If you provide a cook to
It is also possible to change the injection amount of the compressed air from the No. 3 nozzle and the No. 3 nozzle by a cock.

[0068]

As described above, according to the bite holder of the present invention, only the bite is held by the bite holding portion of the support table and the tip of the bite of the first nozzle is aligned with the rake surface. At the same time, the second nozzle and the third nozzle can be aligned with the tips of the cutting tools, and the first nozzle, the second nozzle, and the third nozzle can be connected to the oil pipe and The first nozzle, the second nozzle, and the third nozzle can be brought close to the tip of the bite without the need to bend the air pipe by hand to align it with the tip of the bite.

When cutting the workpiece with the cutting tool held by the cutting tool holding section of the supporting table, the cutting oil flows through the oil passage inside the supporting table, so that the first nozzle cuts the cutting oil. Is sprayed from above from an appropriate angle toward the rake surface of the tip of the blade, and the cutting oil sprayed from the first nozzle reduces heat generation due to friction between the cutting tool and the workpiece, and It is possible to prevent scattering.

Furthermore, since compressed air flows through the first air passage and the second air passage inside the support after the cutting of the work piece by the cutting tool is completed, the second nozzle and the third air passage are provided. The nozzle injects compressed air toward the tip of the cutting tool from above and below at an appropriate angle, and blows off the cutting dust wrapped around the tip of the cutting tool by the compressed air injected from the second nozzle and the third nozzle. Can be removed.

[Brief description of drawings]

FIG. 1 is a side view of a bite holder according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of FIG.

FIG. 3 is a side view of the support base of FIG.

4 is an enlarged front view of FIG.

FIG. 5 is a front view of the holding plate of FIG.

6 is a side view of FIG.

FIG. 7 is a front view of the partition plate of FIG.

8 is a side view of FIG.

9 is an enlarged view of a main part of FIG.

FIG. 10 is a front view of the holding plate of FIG.

11 is a side view of FIG.

FIG. 12 is a side view of a bite holder according to another embodiment of the present invention.

13 is an enlarged front view of FIG.

14 is a side view of the support base of FIG.

FIG. 15 is an enlarged front view of FIG.

16 is a front view of the partition plate of FIG.

FIG. 17 is a side view of FIG.

FIG. 18 is an enlarged view of a main part of FIG.

FIG. 19 is a front view of the holding plate of FIG.

FIG. 20 is a side view of FIG.

FIG. 21 is a side view of a conventional bite holder.

[Explanation of symbols]

 1 Support Base 2 Groove 3 Screw Hole 4 Bolt 5 Bit 6 First Nozzle 7 Second Nozzle 8 Third Nozzle 9 Oil Pipe 10 Air Pipe 11 Support Base 12 Groove 13 Through Hole 14 Through Hole 15 Communication Hole 16 First Nozzle 17 Second nozzle 18 Third nozzle 19 Receiving piece 20 Holding plate 21 Partition plate 22 Holding plate 23 Flat part 24 Tapered female screw hole 25 Female screw hole 26 Induction groove 27 Pipe joint 28 Tapered male screw part 29 Oil pipe 30 Inclined part 31 Tapered female screw hole 32 Recessed groove 33 Induction groove 34 Pipe fitting 35 Tapered male thread part 36 Air pipe 37 Female threaded hole 38 Communication hole 39 Plug 40 Flat part 41 Female threaded hole 42 Inclined part 43 Recessed groove 44 Induction groove 45 bytes 46 screw hole 47 bolt 48 fitting hole 49 through hole 50 inclined portion 51 concave groove 52 inclined surface 53 inclined Surface 54 Bolt 55 Fitting Hole 56 Through Hole 57 Inclined Surface 58 Bolt 60 Supporting Base 61 First Nozzle 62 Second Nozzle 63 Third Nozzle 64 Receiving Piece 65 Partition Plate 66 Holding Plate 67 Inclined Part 68 Induction Groove 69 Inclined Part 70 Guide groove 71 Inclined surface 72 Inclined surface 73 Recessed groove 74 Fitting hole 75 Through hole 76 Inclined surface 77 Recessed groove 78 Bolt

Claims (1)

[Claims] 1. A tool holder is formed on a support table, and an oil passage for circulating cutting oil is provided along the longitudinal direction above the tool holder section inside the support table. A first air passage and a second air passage for circulating compressed air are provided above and below the bite holding portion along the longitudinal direction, respectively, and the oil passage and the first air passage are provided above the front end portion of the support base. A first nozzle and a second nozzle communicating with the air passage of the second base, and the second nozzle is provided below the front end of the support base.
A bite holder characterized by having a third nozzle communicating with the air passage.