JP3390261B2 - Cutting oil jetting device for comb blade type lathe - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting oil jetting device for jetting cutting oil to a work being processed in a comb blade type lathe.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a main spindle 1 for holding a work W, which is horizontally provided, and a T-axis, which is perpendicular to the main spindle axis and is perpendicular to the main spindle axis, is attached to a tip portion of the main spindle 1. Turret 2 provided so as to be movable in any direction, and the turret 2
A plurality of tools 3a, 3b, 3c, 3 which are attached to one side of the spindle 1 and which are attached in a comb-like shape in the T-axis direction.
a first tool row 3 composed of d and 3e, and a second tool composed of a plurality of tools 4a, 4b, 4c, 4d, and 4e, which are mounted on the opposite side of the spindle 1 in the T-axis direction in a comb-like shape. The row 4, the X-axis slide 5 having a rail 5a for holding the tool rest 2 movably in the T-axis direction, and the bed (not shown) holding the spindle 1 are attached to the X-axis slide 5 A rail 6 that holds the tool movably in the X-axis direction that is perpendicular to the axis of the spindle and horizontal, a T-axis drive mechanism (not shown) that moves the tool rest 2 in the T-axis direction, and an X-axis slide. There is known a comb-blade lathe equipped with an X-axis drive mechanism (not shown) for moving 5 in the X-axis direction. In this comb blade type lathe, the tool rest 2 is moved in the T-axis direction to move a desired tool (3c in the drawing) to a processing position, and the X-axis slide 5 is moved in the X-axis direction, whereby the tool rest 2 is moved. And the tool 3c is sent in the X-axis direction to process the work W.

In such a comb blade type lathe, in order to supply the cutting oil to the processing position of the work W, the cutting oil jet nozzles 8a to 8e are provided adjacent to the fixed tools 3a to 3e, 4d and 4e, respectively. 9d and 9e are provided, and a cutting oil passage (not shown) formed in the tool rest 2 and a supply pipe 1 connected to the cutting oil passage are formed in the cutting oil ejection nozzles.
The cutting oil was supplied from the cutting oil supply device via 0.
Therefore, the cutting oil was jetted from all the cutting oil jet nozzles 8a to 8e, 9d, 9e during processing by any tool (for example, 3c).

[0004]

However, since the cutting oil is jetted from all the cutting oil jet nozzles in such a conventional configuration, the discharge pressure of the cutting oil does not rise, and the cooling effect of the work and the tool by the cutting oil and the work There was a problem that the lubrication effect between the tool and the tool did not improve and the removal of chips was insufficient.
There is also a problem that cutting oil is scattered over a wide range.

The present invention is intended to solve such a conventional problem and has a simple structure capable of ejecting cutting oil only from a cutting oil ejection nozzle corresponding to a tool moved to a machining position in the T-axis direction. An object of the present invention is to provide a cutting oil jetting device for a simple comb blade type lathe.

[0006]

In order to solve the above problems, the invention according to claim 1 of the present application makes it possible to move in a T-axis direction which is perpendicular to the main shaft for holding a work and the axis of the main shaft. a tool rest provided, on the blade material table, and the tool string comprising a plurality of tools which are arranged in a comb-teeth shape in the T-axis direction, the
Set the tool rest in the X-axis direction that is perpendicular to the axis of the main shaft and the T-axis direction.
In a comb blade type lathe equipped with an X-axis drive mechanism for moving to, a plurality of cutting oil ejection nozzles provided corresponding to the plurality of tools on the tool post, and cutting on the plurality of cutting oil ejection nozzles A cutting oil supply device for supplying oil, and the cutting oil from the cutting oil supply device is supplied to the plurality of cutting oils.
Rotary valve for switching and supplying to the jet nozzle
And the movement of the tool post in the T-axis direction
And a rotor rotation mechanism that rotates the rotor of the tally valve.
The rotary valve is provided on the turret,
A thin film held rotatably in the direction perpendicular to the T-axis direction.
It is a long rotor that is internally disconnected from the cutting oil supply device.
It has a passage connected to supply the cutting oil and
The rotor is provided at a plurality of locations apart from each other in the axial direction of the rotor from the passage
Front with multiple holes formed to communicate with the outer peripheral surface of
The rotor and the rotor at a position facing the outer peripheral surface of the rotor.
Multiple holes provided corresponding to the multiple holes formed on the
Ports, each of which is connected to the plurality of cutting oil ejection nozzles.
The rotor rotating mechanism having a plurality of communicating ports
Connected to the rotor so as to drive the rotor to rotate.
Installed pinion gear and the tool post along the movement path of the tool post.
And has a rack that meshes with the pinion gear.
The rotary valve and rotor rotation mechanism
SUMMARY cutting oil discharge device gang type lathe, characterized in that it is configured to supply cutting oil to the cutting oil ejection nozzles are combined into a tool sent to the processing position by the serial movement of the tool rest And

The invention according to claim 2 is the same as that of claim 1.
In the cutting oil jetting device of the comb blade type lathe, the tool post
Consists of multiple tools on each side of the spindle.
Hold the first tool row and the second tool row, and
The lube to the first tool row and the second tool row, respectively.
So that two of them are installed and the cutting oil supply device and two
Between the rotary valve and the cutting oil supply device,
Switching the cutting oil to one of the two rotary valves
Flow switching means to supply the
The changing means during the machining with the tools of the first tool row
For the rotary valve combined with the first tool row
Supply cutting oil during machining with the tools in the second tool row
Is a rotary valve combined with the second tool row
The X-axis direction of the tool post so as to supply cutting oil to the
That the flow path is switched according to the direction
It is a feature .

[0008]

The invention according to claim 1 of the present application has the above-mentioned structure.
When the tool post is moved in the T-axis direction and the desired tool in the tool row is moved to the machining position, the rotary valve operates in conjunction with the movement of the tool post and is combined with the tool at the machining position. The cutting oil is supplied only to the existing cutting oil jet nozzle. Therefore, compared with the conventional case where the cutting oil is ejected from all the cutting oil ejection nozzles, the ejection amount of the cutting oil is smaller, so that the ejection pressure is increased and the cutting oil is ejected to the machining position effectively. , The effect of cutting oil (cooling, lubrication, removal of chips, etc.) is improved. Also, unnecessary scattering of cutting oil is reduced. In addition, the rotary bar
The rotor provided on the lube has an elongated shape, and the rotor axis direction
From the internal passage to the outer peripheral surface of the rotor at multiple locations
Position where multiple holes are formed and facing the rotor outer peripheral surface
Select multiple ports to form holes and ports
By configuring the flow path switching by connection,
Compact rotary tool with a rotary valve
The rotor rotation mechanism,
A pinion gear for rotationally driving the rotor, and the blade
It is arranged along the moving path of the platform and meshes with the pinion gear.
By constructing a rack that fits together, the structure is simple and small.
Type rotor rotation mechanism, linked to the movement of the turret
The flow path of the rotary valve can be switched.

The invention according to claim 2 has the above-mentioned structure.
When the first tool row and the second tool row are provided on the tool post,
The first tool row or the second tool row.
Even when the tool is in the machining position,
It is possible to supply cutting oil only to the cutting oil jet nozzle.
This increases the discharge pressure and makes the cutting oil effective.
The effect of cutting oil (cooling, lubrication,
Elimination of chips, etc.)

[0010]

The preferred embodiments of the present invention will be described below. FIG. 1 is a schematic front view of a comb blade type lathe equipped with a cutting oil ejection device according to an embodiment of the present invention, FIG. 2 is a schematic sectional view of a tool rest in that embodiment, and FIG. Arrow A-
FIG. 8 is a schematic cross-sectional view as seen in the direction A, in which the same or similar parts as those of the conventional example shown in FIG. 7 are designated by the same reference numerals. That is, W is a work, 1 is a main spindle for holding the work W, 2 is a tool rest provided so as to be movable in the T-axis direction perpendicular to the main spindle 1, and 3 is positioned on one side of the main spindle 1. A first tool row 4 composed of a plurality of tools 3a to 3e held on the tool rest 2 and arranged in a comb-like shape in the T-axis direction.
Is held by the tool rest 2 so as to be located on the opposite side of the spindle 1, and a plurality of tools 4 arranged in a comb-like shape in the T-axis direction.
a second tool row consisting of a to 4e, 5 is an X-axis slide provided with a rail 5a for holding the tool rest 2 movably in the T-axis direction, and 6 is movably holding the X-axis slide 5 in the X-axis direction Rails 8a to 8e are tools 3a of the first tool row 3
Cutting oil jet nozzles provided corresponding to 3e, 9d,
Reference numeral 9e is a cutting oil jet nozzle provided corresponding to each of the tools 4d and 4e of the second tool row 4.

On the tool rest 2, cutting oil from an external cutting oil supply device (not shown) is supplied to the cutting oil jet nozzles 8a to 8e.
Rotary valve 12 for supplying is provided and is switched to 9 d, 9 e. This rotary valve 1
The rotor 2 is rotatably held by the tool rest 2 in a direction perpendicular to the T axis, and a plurality of ports 14a formed in the tool rest 2 so as to open at positions facing the rotor 13.
.About.14e. Ports 14a, 14b, 14c
Respectively communicate with the cutting oil ejection nozzles 8a, 8b, 8c of the first tool row 3 via the passages formed in the tool rest 2, and the ports 14d, 14e are provided outside the tool rest 2, respectively. The pipes 15d and 15e and the passages 16d and 16e formed in the tool rest 2 communicate with the cutting oil ejection nozzles 8d and 8e of the first tool row 3. Furthermore, this passage 16
The cutting oil ejection nozzles 9d and 9e of the second tool row 4 are also communicated with d and 16e, respectively.

The rotor 13 of the rotary valve 12 has a passage 18 therein, and a supply pipe 10 from a cutting oil supply device is connected to the passage 18 to supply cutting oil. Furthermore, as shown in FIG. 4 and FIG.
The rotor 13 has radial holes 20a to 20e at positions corresponding to the ports 14a to 14e, respectively. These holes 20a to 20e are formed so that any one of the holes 20a to 20e communicates with the corresponding port 14a to 14e depending on the rotational position of the rotor 13, and the formation position will be described later.

As shown in FIGS. 1 and 2, a pinion gear 22 is attached to one end of the rotor 13, and the X-axis slide 5 is moved along the moving path of the pinion gear 22.
A rack 23 is attached so as to mesh with the pinion gear 22. Thus, in order for the tool post 2 to index the desired tool to the machining position, the tool post 2 should be moved to the T-axis with respect to the X-axis slide 5.
When it moves in the axial direction, the pinion gear 22 and the rotor 13 rotate accordingly. Therefore, this pinion gear 2
2 and the rack 23 constitute a rotor rotating mechanism that rotates the rotor of the rotary valve in conjunction with the movement of the tool rest in the T-axis direction.

Here, the hole 2 formed in the rotor 13
Positions 0a to 20e and pinion gear 22 and rack 23
Is a cutting oil ejection nozzle combined with the tool positioned at the processing position, when any of the tools 3a to 3e of the first tool row 3 is positioned at the processing position by the movement of the tool rest 2 in the T-axis direction. It is configured to supply cutting oil only to the chisel. More specifically, in the present embodiment, when the turret 2 moves from a state in which the uppermost tool 3a is in the machining position to a state in which the lowermost tool 3e is in the machining position (at the time of full stroke of the turret 2). ), The diameter of the pinion gear 22 is determined so that the pinion gear 22 and the rotor 13 rotate twice (720 degrees), and when the tool 3a is set to the machining position, the hole 2 of the rotor 13
0a communicates with the port 14a to supply the cutting oil to the cutting oil jet nozzle 8a, and when the tool 3b is at the processing position, the hole 20b communicates with the port 14b to supply the cutting oil to the cutting oil jet nozzle 8b, When the tool 3c is set to the processing position,
When the hole 20c communicates with the port 14c to supply the cutting oil to the cutting oil jet nozzle 8c and the tool 3d is set to the processing position, the hole 20d communicates with the port 14d to send the cutting oil to the cutting oil jet nozzles 8d and 9d. When the tool 3e is supplied to the processing position, the hole 20e communicates with the port 14e to supply the cutting oil to the cutting oil jet nozzles 8e and 9e. The number of rotations of the pinion gear 22 with respect to the full stroke of the tool rest 2 is not limited to two,
It can be increased / decreased as appropriate, but if it is, for example, one rotation, the diameter of the pinion gear 22 becomes large. For this reason, it is preferable that the pinion gear 22 is made smaller by making two rotations as in the present embodiment.

Next, the operation of the comb blade type lathe provided with the cutting oil jetting device having the above construction will be described. When machining the workpiece W, the tool rest 2 is moved in the T-axis direction to index a desired tool (for example, 3c) to the machining position, and the rotor 1 of the rotary valve 12 is linked with the indexing movement of the tool rest 2.
3 rotates, the hole 20c of the rotor 13 communicates with the port 14c, and the other holes 20a, 20b, 20d, and 20e are closed. In this state, the X-axis slide 5 is moved in the X-axis direction, and machining is performed by the tool 3c. At this time, the cutting oil supplied from the cutting oil supply device to the passage 18 in the rotor 13 of the rotary valve 12 is supplied only to the cutting oil jet nozzle 8c adjacent to the tool 3c by the communication between the hole 20c and the port 14c. , Is ejected onto the work being processed. Thus, as compared with the conventional case where the cutting oil is discharged from all the cutting oil jet nozzles, the discharge amount of the cutting oil is smaller, so that the discharge pressure is increased and the cutting oil is processed at a high speed by the tool 3c. Is sprayed onto the work W and the work W and the tool 3c are cooled well, and the work W
Lubricates between the tool and the tool 3c, and removes chips well,
Good processing is done. The same applies when the other tools 3a and 3b are selected.

When the tool 3d or 3e is selected, the cutting oil is the cutting oil jet nozzle 8d or 8e on the first tool row 3 side.
Not only is it jetted from the cutting oil jet nozzle 9d or 9e on the second tool row 4 side. For this reason, the discharge pressure is slightly lower than the case where the cutting oil is ejected from only a single cutting oil ejection nozzle, but compared with the case where the cutting oil is ejected from all the cutting oil ejection nozzles as in the past, The discharge pressure of oil can be increased, and the effect of cutting oil can be enhanced. Even when the tool 4d or 4e of the second tool row 4 is selected, the cutting oil jet nozzle 9d or 9e in which the cutting oil is combined with the tool 4d or 4e is obtained by the indexing of the tool rest 2 in the T-axis direction. ,
The cutting oil jet nozzle 8d or 8e on the side of the first tool row 3 jets the cutting oil, so that the cutting oil can be jetted efficiently and good machining can be performed.

In the above embodiment, a rotary tool is used for the tools 4a, 4b, 4c of the second tool row 4 and a cutting oil injection nozzle is not provided. A cutting oil injection nozzle may be provided in, and, like the cutting oil injection nozzles 9d and 9e, the cutting oil may be injected together with the corresponding cutting oil injection nozzles 8a to 8c of the first tool row 3. Furthermore, instead of controlling the cutting oil supply to the cutting oil injection nozzle provided in the first tool row 3 and the cutting oil injection nozzle provided in the second tool row 4 by the common rotary valve 12, each is controlled separately. It is also possible to provide rotary valves of different configurations and control them separately.

FIG. 6 schematically shows an embodiment in that case. In this embodiment, a plurality of ports 25, 26 communicating with respective cutting oil supply nozzles (not shown) are formed on the left and right sides of the tool rest 2, and valve portions 27a, 27b for connecting and disconnecting the ports 25, 26, respectively. Is provided with a rotor 27, and the rotor 27 is rotated by the pinion 22 and the rack 23.
27b is provided with passages 28 and 29 from both ends so as to supply cutting oil. Therefore, the plurality of ports 25 and the valve portion 27a constitute a rotary valve for switching the cutting oil to the cutting oil jet nozzle provided in the tool row on the right side,
The plurality of ports 26 and the valve portion 27b constitute a rotary valve for switching the cutting oil to the cutting oil jet nozzle provided in the left tool row. Further, the X-axis slide 5 holding the tool rest 2 is provided with rotary as a flow path switching means for switching and supplying the cutting oil supplied from the cutting oil supply device through the supply pipe 10 to the two pipes 31 and 32. A valve 30 is attached, and its pipes 31 and 32 are connected to passages 28 and 29 of the rotor 27, respectively. The rotary valve 30 is a pinion gear 35 that meshes with a rack 34 mounted on a bed (not shown).
When the X-axis slide 5 moves the tool row on the right side on the tool rest 2 to the machining position, the pipe 31 on the right side is provided.
The cutting oil is supplied to the left side pipe 32 when the left side tool row is moved to the processing position. Thus, in the apparatus of this configuration, when one of the left and right tool rows provided on the tool rest 2, for example, the right side is selected, the X-axis slide 5 moves to a position corresponding to it and the rotary valve 30 moves the right side. Cutting oil is supplied to the pipe 31 corresponding to the tool row, then the tool rest 2 is moved in the T-axis direction by selecting the tool to be used, and the cutting oil injection corresponding to the selected tool is made by the valve portion 27a on the right side of the rotor 27. Cutting oil is supplied only to the nozzle.
In this embodiment, since the cutting oil injection nozzles provided on the left and right tool rows can be controlled respectively, the cutting oil can be discharged only from the cutting oil injection nozzle corresponding to the tool used for processing, and the cutting oil is extremely effective. Can be used to enhance the effect of cutting oil. The switching of the cutting oil to the pipes 31 and 32 is not limited to the rotary valve 30 as shown in the drawing, and other configurations can be used. For example, a slide type switching operation is performed by moving the X-axis slide 5. A valve may be used, and further, a solenoid valve may be attached to each of the pipes 31 and 32 to open and close according to the movement of the X-axis slide 5.

Further, in the above embodiment, the rotary valve 12 for intermittently supplying the cutting oil to each cutting oil injection nozzle is formed integrally with the tool rest 2, but instead of this, the rotary valve is made as a separate part. The valve may be attached to the tool rest 2. However, when the rotary valve 12 is formed integrally with the tool rest 2 as in the illustrated embodiment, there is an advantage that the device can be downsized.

[0020]

As described above, according to claim 1 of the present application.
In the cutting oil injection device according to the invention, when the tool rest is moved in the T-axis direction to move the desired tool in the tool row to the processing position, the rotary valve operates in conjunction with the movement of the tool rest. , It is possible to supply the cutting oil only to the cutting oil jet nozzle that is combined with the tool at the machining position, and the discharge pressure is higher than that in the conventional case where the cutting oil is jetted from all the cutting oil jet nozzles. The cutting oil can be sprayed at high speed, and the cooling effect, lubrication effect, and chip removal effect of cutting oil can be improved, good machining can be performed, and unnecessary scattering of cutting oil is reduced. It has the effect of being able to do so. Also, the rotary valve has an elongated form.
Can be installed compactly on the turret and
The structure of the data rotation mechanism can be made simple and small,
It also has the effect of downsizing the entire device.

According to a second aspect of the present invention, the tool rest is firstly provided.
When a tool row and a second tool row are provided, the first tool row
When machining with either the
Cutting oil jets that are combined with the set tool
Cutting oil can be supplied only to
More effectively sprays cutting oil from the cutting oil supply device to the processing position.
Can be produced, enhance the effect of cutting oil, and perform good processing.
It has the effect that

[Brief description of drawings]

FIG. 1 is a schematic front view of a comb blade type lathe equipped with a cutting oil jetting device according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of a tool post in the embodiment.

FIG. 3 is a schematic cross-sectional view of the turret in the direction of arrow AA in FIG.

FIG. 4 is a schematic sectional view showing an enlarged main part of a rotary valve used in the above embodiment.

5 is a schematic sectional view taken along the line BB of FIG.

FIG. 6 is a schematic sectional view showing another embodiment of the present invention.

FIG. 7 is a schematic front view of a conventional comb blade type lathe.

[Explanation of symbols]

W work 1 spindle 2 Turret 3 First tool row 3a to 3e tools 4 Second tool row 4a-4e tools 5 X-axis slide 8a-8e, 9d, 9e Cutting oil jet nozzle 10 supply piping 12 Rotary valve 13 rotor 14a-14e ports 18 passages 20a to 20e holes 22 pinion gear 23 racks

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B23B 21/00 B23B 25/00 B23Q 11/10

Claims (2)

(57) [Claims] 1. A spindle for holding a work, a tool rest provided so as to be movable in a T-axis direction perpendicular to the axis of the spindle, and the tool rest arranged in a comb-like shape in the T-axis direction. A tool row consisting of a plurality of tools and the tool post as the spindle axis.
X-axis drive to move in the X-axis direction perpendicular to the line and T-axis direction
In a comb blade type lathe provided with a mechanism, for the tool post, a plurality of cutting oil jet nozzles provided corresponding to the plurality of tools respectively, and for supplying cutting oil to the plurality of cutting oil jet nozzles Cutting oil supply device and the cutting oil supply device
Switching these cutting oils to the cutting oil jet nozzles
Rotary valve for supply and T-axis of the tool post
The rotor of the rotary valve
And a rotor rotating mechanism for rotating the rotor.
A leaf valve is attached to the tool post in a direction perpendicular to the T-axis direction.
An elongated rotor that is rotatably retained in
So that cutting oil is supplied to the part from the cutting oil supply device
With connected passages and separated in the rotor axis direction
In order to communicate with the outer peripheral surface of the rotor from the passage at multiple points
The rotor having a plurality of holes formed, and the rotor
At the position facing the outer peripheral surface, a plurality of rotors formed on the rotor
A plurality of ports provided corresponding to the holes,
Multiple ports, each communicating with several cutting oil jets
The rotor rotation mechanism is provided on the rotor.
A pinion gear connected to drive the
The pinion gear is arranged along the moving path of the tool post.
It has a rack that meshes with the
The blade and rotor rotation mechanism is configured to supply the cutting oil to the cutting oil jet nozzle which is combined with the tool sent to the processing position by the movement of the tool post, and the comb blade type lathe. Cutting oil jetting device. 2. The tool rest is provided on both sides of the main shaft.
Maintains a first tool row and a second tool row each consisting of multiple tools.
And has the rotary valve, the first tool row
And two are provided to correspond to the second tool row and
In addition, the cutting oil supply device and two rotary bars
Between the lube and the cutting oil supply device,
Supply by switching to one of the rotary valves
Flow path switching means is provided for switching the flow path.
The means is configured to provide the first tool during machining with the tools of the first tool row.
Cutting on a rotary valve combined with a tool row
The oil is supplied, and during machining by the tool of the second tool row,
For the rotary valve combined with the second tool row
To supply cutting oil, in the X-axis direction of the tool post
The cutting oil jetting device for the comb blade type lathe according to claim 1 , wherein the flow paths are switched according to the movement of the cutting oil.