JP3288144B2 - Coolant through device and compressed air supply device for rotating face plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coolant through device for a rotating face plate and a compressed air supply device.

[0002]

2. Description of the Related Art In a boring machine or a machining center, a surface perpendicular to a main spindle is continuously machined by feeding a tool in a radial direction (U-axis), or a hole is machined by automatically changing a cutting diameter of the tool. Can not do it. In order to compensate for these drawbacks, a rotating face plate having a tool slider operating in the radial direction is attached to the tip of the spindle to perform face machining and other machining.

[0003]

A cutting tool is attached to a tool slider via a tool holder for machining. When cutting is performed by injecting a coolant or compressed air into a cutting portion, a large-diameter rotation during rotation is performed. not be allowed closer coolant Nozzle Le only Ri near the outer diameter of the rotating surface plates are blocked by the face plate nearest the switching
There was a disadvantage that coolant was not effectively applied to the cut area.
In particular, in drilling and deep hole boring, it is difficult for the coolant to reach the cutting edge.

Therefore, in the present invention, the coolant is sent to the tool slider of the rotating face plate through the center of the main shaft, and the coolant is further supplied from the inside of the tool holder so that the coolant can be directly sprayed toward the cutting edge. and to improve efficiency.

When a tool slider which moves in the U-axis direction is provided with a tapered hole and a collet for automatic clamping so that a tool holder can be automatically changed, compressed air is sent to a tapered portion and an outer peripheral V-groove of the tapered holder for cleaning. Need to be done. However, supplying compressed air to the rotating face plate and the tool slider moving in the radial direction can only be achieved in a few cases .
Was .

Therefore, in the present invention, the compressed air can be supplied to the tapered hole of the tool holder and the V-groove of the tool holder through the air passage of the rotating face plate main body and the air discharge passage of the tool slider. a washing was set to obtain a row at the time of automatic exchange.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tool slider movably mounted in the U-axis direction on a side opposite to a main shaft of a rotary face plate body which rotates with a main shaft. In a device in which a taper hole is provided in the core direction, a tool holder provided with an end face lubrication hole is fitted into this taper hole, and the tool holder is detached with a draw bar provided inside the main spindle, coolant is introduced into the draw bar from the end face to the side. A hole is provided, a coolant pipe is attached to a discharge port of the coolant introduction hole, a coolant pipe is communicated with a coolant path passing through the inside of the rotating face plate body, and a coolant path is communicated with a coolant discharge path provided on the tool slider via a hose, coolant Sur rotating faceplate coolant discharge passage allowed communicating with a nozzle which communicates with the end face lubrication hole of the tool holder You configure the device.

A tool slider is movably mounted in the U-axis direction on the side opposite to the main shaft of the rotating face plate body which rotates with the main shaft, and a taper hole is provided in the axis direction of the main shaft of the tool slider, and a V-shaped groove is formed in the taper hole. In a device that fits a tool holder having a, and detaches the tool holder with a draw bar provided inside the main spindle, an air supply pipe is attached to the rotating face plate body,
Mounting the air socket on the spindle side of the air supply pipe communicates the other end to the air passage, the air passage when the centers of the drawbar of the tapered hole is located on a straight line
The tool slider is provided with an air discharge path communicating with the tool slider. The air discharge path is connected to a groove nozzle for supplying air to the V-shaped groove of the tool holder and a tapered hole, and the cylinder is moved to the air receiving port by the cylinder. The compressed air supply device of the rotating face plate was configured so as to connect an air supply bush having an air supply passage.

[0009]

SUMMARY OF THE INVENTION The present invention has the structure described above, when supplying the coolant fluid from the end of the coolant introduction hole of the drawbar, coolant passes through the outside of the hose from the coolant passage through the coolant piping, further tool slider Is supplied to the end face oil supply hole of the tool holder from the coolant discharge passage by the nozzle, and flows out from the cutting edge.

After the cutting operation is completed, the tool slider is returned so that the center of the tapered hole and the center of the draw bar are located on the same line, and then the cylinder is driven to connect the air supply bush to the air receiving port. Then, when the air is sent to the air supply pipe, the air is sent from the air supply pipe to the air passage, and further sent to the air discharge path of the tool slider, and the air that has passed through the air discharge path is sent to the groove nozzle and the tapered hole. It sent, respectively-to-be out-injection from these
Clean the V-shaped groove and tapered hole of the holder .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a rotating face plate A has a rotating face plate body 2 fixed to one end of a main shaft 1 and a tool slider provided in a guide groove 3 provided in a radial direction (U-shaped direction) on a side opposite to the main spindle of the rotating face plate body 2. 4 is mounted so that it can be moved without detaching.

The tool slider 4 is provided with a tapered hole 5 and a tool holder 6 is fitted therein, and a pull-stat 7 fixed to the tool holder 6 is clamped and opened by inserting and removing a collet 8 to hold and release the tool holder 6. It is supposed to do. It should be noted that the tool holder 6 having the end face oil supply holes 9, 9 is used.

A cover 1 is provided on the side of the collet 8 opposite to the tool holder.
0 is fixed to the tool slider 4, the cover 10 is provided with a fixing hole 11, and the draw bar 1 is fitted in the axial direction of the main shaft 1.
2 is fitted into the fixing hole 11 so that the rotating face plate body 2
And the tool slider 4 are integrated, and the tool holder 6 can be opened by pushing out the collet 8 at the tip of the draw bar 12.

[0014] Also, the rotating surface plate body 2 provided so as to penetrate the operation shaft hole 13 in the U-axis direction, the guide groove 3 of the actuating shaft hole 13
A guide communication hole 14 is provided in a part of the side so that the operation shaft hole 13 communicates with the guide groove 3. An operating shaft 15 is built in the operating shaft hole 13, a screw portion 16 is provided at one end, and a nut 18 fixed to a connecting portion 17 protruding from the tool holder 6 is screwed. A bevel gear 19 is fixed to the opposite side of the screw portion 16, and a bevel gear 20 meshing with the bevel gear 19 is fixed to an end of a hollow U-shaft 21 provided inside the hollow portion of the main shaft 1 to form a hollow U-shaft 21. rotating the operating shaft 15 by the driving of, it has become a tool slider 4 via the screw portion 16 is screwed to the nut 18 in such move in the U-axis direction
You .

The drawbar 12 is mounted inside the hollow U-shaft 21 so as to be movable in the axial direction.
2 has a through-hole 22 penetrating the operating shaft 15. The coolant device is configured as follows. That is, a coolant introduction hole 23 (see FIG. 4) is provided from the end of the draw bar 12 in the axial direction, and the draw bar 12 is bypassed from the formation portion of the through hole 22 to avoid the through hole 22.
A discharge port 24 is opened from a central portion of the through hole 22 in a direction orthogonal to the through hole 22.

A block 25 is fixed to the discharge port 24, a coolant pipe 26 is mounted in the working shaft hole 13, and a block 27 is fixed to the guide groove 3 side of the working shaft hole 13, and the coolant passage extends horizontally from the block 27. 28, an opening is provided at the end of the side face of the guide groove, and a joint 29 is attached to this end to connect one end of a flexible hose 30. The other end of the hose 30 is connected to a joint 31 attached to one end of the tool slider 4. This joint 31 is a tool slider 4
The coolant discharge passage 32 is attached to the opening of a coolant discharge passage 32 (see FIG. 2) provided therein. The coolant discharge passage 32 branches into two branch passages 33 and 34, and one branch passage 33 descends. And the end face lubrication hole 9 of the tool holder 6
The other branch passage 34 communicates with a nozzle 36 which communicates with the end face oil supply hole 9 on the opposite side.

The compressed air supply device is configured as follows. That is, two air supply pipes 37 and 37 ′ (see FIG. 3) are fixed to the shaft head (opposite the nut side) of the operation shaft 15 in the operation shaft hole 13 of the rotating face plate main body 2, and Air receiving ports 38, 38 'communicating with the air supply pipes 37, 37' are provided on the main shaft 1 side, respectively.
The other side of ′ passes through the inside of the rotating face plate body 2 and
Re bend communicates with the air passage 39,39' are then folded Re bent in the axial direction parallel to the horizontal direction. The openings on the tool slider 4 side of the air passages 39 and 39 ′ are connected to the air discharge passages 40 and 40 ′ provided in the tool slider 4 when the respective axes of the tapered hole 5 and the draw bar 12 are aligned. It is designed to communicate.

[0018] While the discharge side of the air discharge passage 40 extends horizontally, it is communicating with the nozzle block 41 which is provided at an end portion of the tool slide 4. Long hole 42 is provided in the nozzle block 41, being adapted to communicate with the air discharge passage 40, the central groove nozzles 43 blowing air to the V-groove of the tool holder 6 is opened .

The other air discharge passage 40 'is opened in the tapered hole 5 obliquely after descending as shown in FIG.
On the other hand, as shown in FIG.
Thus, the air supply bushes 44, 44 'are connected. The air supply bushes 44, 44 'are connected to a connecting plate 46 via shafts 45, 45'. The connecting plate 46 is fixed to a rod 49 of a cylinder 48 installed on a head 47.

Although not shown in the drawing, the connection plate 46 has air supply ports 50, 5 connected to air supply hoses.
0 ' is open, and the air supply ports 50, 50' are
The air supply buses 44, 44 'communicate with the air supply passages 51, 51' which are opened to the discharge side of the air supply bushes 44, 44 'through 5'.

This embodiment is constructed as described above.
For example, when the coolant is supplied from the coolant introduction hole 23 of the draw bar 12 while the rotary face plate body 2 is rotated by the rotation of the main shaft 1 and the drill is performed, the coolant passes through the coolant pipe 26 and the coolant passage. 28, once out of the rotary face plate main body 2, passes through the hose 30, passes through the coolant discharge passage 32 in the tool slider 4 and branches into the branch passages 33, 34 and the nozzles 35, 35 on both sides.
Through the oil supply holes 9 and 9 of the tool holder 6
Out, and supplies a coolant to the tip of the drill.

When the boring operation is completed and the drill is to be removed, the rotation of the main shaft 1 is stopped, and the tool slider 4 is driven by the hollow U-shaft 21 so that the center of the tapered hole 5 and the center of the draw bar 12 are aligned. To be located at Thereafter, the cylinder 48 is driven to the outlet side to advance the connecting plate 46, and the air supply bushes 44, 44 'are connected to the respective air receiving ports 38, 38', and the air supply ports 50, 50 'are connected.
When air is supplied from the air supply path 5
1, 51 ', from the air supply pipes 37, 37' through the air passages 37, 37 ', one of which is sent from the air discharge path 40 to the long hole 42 of the nozzle block 41, blows out from the groove nozzle 43, and the tool spraying al to V-grooves of the holder 6
It is and the other is discharged into the tapered hole 5 from the air discharge passage 40 '
Re that. Then, the drawbar 12 is advanced, and the collet 8 is moved.
When the tool holder 6 is pulled out from the tapered hole 5 through the above, the tapered hole 5 is cleaned cleanly by air.

In the above embodiment, the air receiving port is provided with two ports.
Has been described so as to provide to the point, and one air socket
And, the groove nozzle 43 one by the air discharge passage 40 of a single tool slider 4 is branched on the way corresponding thereto,
The other may be connected to the tapered hole 5 .

[0024]

The present invention has the above-described structure and operation, and has no effect on the supply of the coolant even if the tool slider moves, and the coolant is directly applied to the cutting edge. Injection can increase cutting efficiency. Further, air can be supplied to the V-shaped groove of the tool holder and also supplied to the tapered hole, so that the cleaning can be reliably performed.

[0025]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of a coolant through device and a compressed air supply device for a rotating face plate according to the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a plan view showing an air supply portion.

FIG. 4 is a cross-sectional plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main shaft 2 Rotating face plate main body 3 Guide groove 4 Tool slider 5 Taper hole 6 Tool holder 7 Pull stat 8 Collet 9 End face lubrication hole 10 Cover 11 Fixing hole 12 Drawbar 13 Working shaft hole 14 Guide communication hole 15 Working shaft 16 Screw part 17 Connection Part 18 nut 19 bevel gear 20 bevel gear 21 hollow U-shaft 22 through long hole 23 coolant introduction hole 24 discharge port 25 block 26 coolant pipe 27 block 28 coolant passage 29 joint 30 hose 31 joint 32 coolant discharge passage 33 branch passage 34 branch passage 35 nozzle 36 nozzle 37 air supply pipe 37 'air supply pipe 38 air receiving port 38' air receiving port 39 air path 39 'air path 40 air discharge path 40' air discharge path 41 nozzle block 42 long hole 43 groove nose 44 air supply bushing 44 'air supply bush 45 shaft 45' shaft 46 connecting plate 47 head 48 the cylinder 49 the rod 50 an air supply port 50 'air supply port 51 air supply passage 51' air supply passage

Claims (2)

(57) [Claims] 1. A tool slider is movably mounted in a U-axis direction on a side opposite to a main shaft of a rotating face plate body which is rotated by a main shaft, and a taper hole is provided in a shaft axis direction of a main shaft of the tool slider. In a device that inserts a tool holder provided with, and removes the tool holder with a draw bar provided inside the main spindle, a coolant introduction hole that penetrates from the end face to the side is provided in the draw bar, and a coolant pipe is attached to the outlet of the coolant introduction hole A nozzle that communicates a coolant pipe with a coolant passage passing through the inside of the rotating face plate body, communicates the coolant passage with a coolant discharge passage provided in the tool slider via a hose, and communicates the coolant discharge passage with an end face oil supply hole of the tool holder. A coolant through device for a rotating face plate, characterized in that it is in communication with the coolant. 2. A tool slider is movably mounted in the U-axis direction on a side opposite to the main shaft of the rotating face plate body which rotates on the main shaft, and a tapered hole is provided in the axis direction of the main shaft of the tool slider, and a V-shaped groove is formed in the tapered hole. In a device in which a tool holder having a tool holder is inserted and the tool holder is detached with a draw bar provided inside the main spindle, an air supply pipe is attached to the main body of the rotating face plate, and an air receiving port is attached to the main spindle side of the air supply pipe, and the opposite side. the communicating with the air passage is provided with an air discharge passage and center of the drawbar of the tapered hole is <br/> communicates with the air passage when positioned in a straight line to the tool slide, the d <br / > air supply Warped with air supply passages the earth discharge path V-groove of the tool holder caused to communicate to the grooves nozzle and tapered hole for supplying air, moved by the cylinder to the air receiving opening Compressed air supply device for a rotary surface plate, characterized in that the manner allowed to connect Interview.