WO2023058951A1

WO2023058951A1 - Multi-axis angle head device for machine tool

Info

Publication number: WO2023058951A1
Application number: PCT/KR2022/014132
Authority: WO
Inventors: 강영현
Original assignee: 강영현
Priority date: 2021-10-05
Filing date: 2022-09-21
Publication date: 2023-04-13
Also published as: KR102434409B1

Abstract

The present invention relates to a multi-axis angle head device for a machine tool. The multi-axis angle head device for a machine tool comprises: a collet chuck configured to rotate axially; a fixed body which is positioned on the lower portion of the collet chuck, and which has a cutting oil tube; a casing coupled to the lower portion of the fixed body; a center shaft which is installed in the casing so as to rotate axially, and which receives torque from the collet chuck and rotates thereby; multiple electrically-powered shafts which are disposed symmetrically around the center shaft so as to extend out of the casing, and which receive torque from the center shaft and rotate axially thereby; tool mounting portions provided on extension ends of the electrically-powered shafts such that tools are mounted thereon; a cutting oil guide portion provided in the casing so as to receive cutting oil supplied through the cutting oil tube such that the cutting oil passes along same; and an output unit having a nozzle portion for ejecting cutting oil transferred from the cutting oil guide portion. The multi-axis angle head device for a machine tool of the present invention, configured as above, has multiple tool mounting portions such that tools necessary for operations can be mounted/used at once. Accordingly, there is no need to replace tools, and rapid and efficient operations are possible. In addition, every tool mounting portion has a nozzle portion for ejecting cutting coil such that cutting coil can accurately reach the cutting point, and supply of cutting oil and blocking thereof can be easily adjusted.

Description

Multi-axis angle head device for machine tools

The present invention relates to an angle head mounted on and used in a machine tool, and more particularly, to a multi-axis angle head device for a machine tool capable of easily controlling the supply of cutting oil.

There are various types of machine tools that are essentially used in the machinery industry, and according to classification standards, they can be divided into general-purpose machine tools and dedicated machine tools. General-purpose machine tools are capable of performing various processes with one machine, and include lathes, milling machines, drilling machines, and the like. In contrast, dedicated machine tools are equipment capable of only one type of processing, and are applied to mass production lines to improve productivity.

Meanwhile, a spindle to which a tool is bitten and fixed is provided in a machining center or a milling machine. The spindle rotates at high speed by the rotational force transmitted from the motor while the tool is fixed, and allows the tool to cut the workpiece.

There are many types of tools that can be mounted on the spindle, including angle heads. The angle head is a device used when the rotational axis of the spindle and the rotational axis of the tool are different, for example, when the rotational axis of the tool must have a certain angle with respect to the rotational axis of the spindle. By applying such an angle head, it is possible to conveniently process a hole inclined with respect to the axial direction of the spindle.

In this regard, as a background technology of the invention, Korean Patent Publication No. 10-2017-0020111 (Anti Vibration Device for Angle Head) has been disclosed. The disclosed angle head anti-vibration device includes an angle head mounted on a spindle head of a machine tool; An angle upper body in which a conical cone head rotatably protrudes to the upper side of the angle head; An angle lower body in which a cutting tool such as an end mill is installed by being connected to the lower portion of the upper angle body; An anti-rotation pin protruding from one side of the upper angle body of the angle head and inserted into a fixing bracket installed on the spindle head to prevent rotation when the angle head is coupled to the spindle head of the machine tool; An anti-vibration device for an angle head comprising a clamp rod connected to the clamp head so that the clamp ball provided on the upper side of the upper cone head of the angle head is engaged and fixed with the clamp head inside the spindle head, which is installed on the spindle head A pin coupler in which a coupling step is integrally formed on one side of the lower portion of the fixing bracket and fixed as a coupling bolt, and a pin fixing hole is formed to be coupled and fixed to the lower side in the direction of inserting the anti-rotation pin of the fixing bracket; A pin connector connected in a horizontal direction through a coupler to one side of the angle upper body; A pin fixture that is integrally connected to the lower side of the anti-rotation pin protruding from the upper side of the pin connector through a step to support and fix the anti-rotation pin; A plurality of anti-rotation pins are cut so that a plurality of pin cut-out grooves are formed on the inside of the periphery of the anti-rotation pin so that they can be elastically and tightly fixed inside the pin fixing hole of the pin coupler, and an anti-rotation pin with a plurality of pin cut-out grooves formed on the periphery of the anti-rotation pin. A female screw is formed on the circular hole and the inner circumferential surface of the lower side of the circular hole at the inner center of the circular hole, and a pin contact fixing piece is provided with a male screw formed on the outside to be screwed after being inserted into the circular hole.

However, since the angle head is also used for cutting, cutting oil must be supplied to the cutting part when using the angle head. However, the conventional angle head does not itself have a dedicated supply means for supplying cutting oil. Accordingly, in order to supply cutting oil, there was no choice but to borrow a basic cutting oil spraying means previously installed in the corresponding machine tool.

In other words, the injection hose installed near the spindle of the machine tool should be pulled as far as possible and placed close to the cutting part. Aside from inconvenience, this process has a problem of not reaching the cutting oil in the correct direction.

In addition, the conventional angle head has a limitation that only one tool can be mounted. For example, it was impossible to operate with both types of tools used in the work equipped.

* Prior art literature

- (Patent Document 1) Korean Patent Publication No. 10-2017-0020111 (angle head anti-vibration device)

- (Patent Document 2) Korean Patent Registration No. 10-0996031 (Machine tool spindle attachment device)

-(Patent Document 3) Korean Patent Registration No. 10-1791073 (post processor for 5-axis machining using angle head spindle)

The present invention was created to solve the above problems, and there is no need to change tools during work, enabling quick and efficient work, and a multi-axis angle head device for machine tools that can accurately reach the cutting point with cutting oil. It is intended to provide

A multi-axis angle head device for a machine tool according to the present invention as a means of solving the problems for achieving the above object includes a collet chuck that rotates by receiving rotational force from the main shaft of the machine tool; a fixing body positioned below the collet chuck while being supported by the machine tool and having a cutting oil tube through which cutting oil supplied from the outside passes; A casing coupled to the lower part of the fixed body, a center shaft that is installed to be axially rotatable in the casing and rotates by receiving rotational force from the collet chuck, is symmetrically arranged with the center shaft at the center, extends to the outside of the casing, and transmits rotational force from the center shaft A plurality of electric shafts that receive and rotate, a tool mounting part provided at the extended end of the electric shaft and in which a tool is mounted, a cutting oil guide part provided inside the casing and receiving and passing the cutting oil supplied through the cutting oil tube, and cutting oil delivered from the cutting oil guide part. An output unit having a nozzle unit for ejecting is included.

In addition, the cutting guidance unit; A distribution tube for guiding the cutting oil received through the cutting oil tube to each nozzle unit, and the nozzle unit; A ball housing connected to the end of each distribution tube, an opening/closing ball rotatably provided inside the ball housing, having an inner passage through which cutting oil passes, and opening/closing the passage through a rotational motion, and an opening/closing ball fixed to the opening/closing ball It is provided with an extension injection pipe for ejecting the passing cutting oil.

In addition, the extension spray pipe is a hollow pipe extending in the longitudinal direction, and serves as a handle operated by the user to adjust the spray direction, and in the casing, the spray nozzle in a state in which the inner passage of the opening and closing ball is blocked A blocking parking groove is formed to accommodate and maintain the blocked state of the inner passage.

In addition, the cutting guidance unit; A distribution tube for guiding the cutting oil received through the cutting oil tube to each nozzle unit, and the nozzle unit; It is built in the casing but provides a space that is open to the outside of the casing, has a locking jaw on the inside, a first port connected to the distribution tube is formed on the side, and an open chamber in which a second port is formed through the rear wall , One end is connected to the distribution tube and the other end is connected to the second port, and guides some of the cutting oil inside the distribution tube to the inside of the open chamber, or guides the cutting oil inside the open chamber to the distribution tube when the internal pressure of the open chamber rises. A branch tube and a blocking block installed to be position-adjustable in the open chamber, which is moved toward the locking jaw side by the pressure of the cutting oil introduced through the branch tube and blocks the first port while being caught on the locking jaw, and the inside of the open chamber A ball housing that opens the first port by pushing the blocking block and at the same time accepts the cutting oil flowing through the first port, and an internal passage rotatably provided inside the ball housing and passing the cutting oil. An opening and closing ball that opens and closes the passage through the opening and closing ball, an extension injection pipe that is fixed to the opening and closing ball and extends to the outside of the casing and injects cutting oil passing through the opening and closing ball, and a latch that keeps the ball housing mounted in the open chamber. include

The multi-axis angle head device for a machine tool of the present invention made as described above has a plurality of tool mounting parts, so that tools necessary for work can be mounted and used at once, so there is no need to change tools and work is fast and efficient. make it possible

In addition, since the nozzles ejecting the cutting oil are disposed in all tool mounting parts, the cutting oil can be accurately delivered to the cutting point, and it is easy to supply and cut off the cutting oil.

1 is a perspective view of a multi-axis angle head device for a machine tool according to an embodiment of the present invention.

2 is an exploded perspective view of the hangle head device shown in FIG. 1;

3 is a view for explaining the internal configuration of the output unit of FIG. 2;

4 is a plan view of the output unit of FIG. 3;

FIG. 5 is a view showing the cutting guide part shown in FIG. 3 separately.

FIG. 6 is a schematic diagram for explaining an installation example of a cutting oil tube connecting the cutting oil injection unit and the distribution tube of FIG. 5 .

7 is a perspective view showing a modified example of a multi-axis angle head device for a machine tool according to an embodiment of the present invention.

FIG. 8 is a view showing the inside of the output unit shown in FIG. 7;

9A to 9C are views for explaining the configuration and operation of a nozzle unit applicable to a multi-axis angle head device for a machine tool according to an embodiment of the present invention.

10 to 12 are diagrams for explaining a different type of nozzle unit applicable to a multi-axis angle head device for a machine tool according to an embodiment of the present invention and an operating method of the nozzle unit.

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

The angle head device of the present invention has two or more tool mounting parts. That is, two or more tools can be mounted and used. Many tools can be preloaded, so there is no need to stop the machine to change tools. In addition, since the nozzle part for ejecting cutting oil is installed in each tool mounting part, it is easy to control the supply and cut-off of cutting oil.

1 is a perspective view of a multi-axis angle head device for a machine tool according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the hangle head device shown in FIG. 1 . 3 is a view for explaining the internal configuration of the output unit of FIG. 2, and FIG. 4 is a plan view of the output unit of FIG. In addition, FIG. 5 is a view separately showing the cutting oil guide part shown in FIG. 3, and FIG. 6 is a schematic diagram for explaining an example of installing a cutting oil tube connecting the cutting oil injection part and the distribution tube of FIG.

As shown, the multi-axis angle head device 10 according to the present embodiment has a basic configuration of a collet chuck 20, a fixing body 30, and an output unit 40.

The collet chuck 20 rotates by receiving rotational force from the main shaft while being inserted into the main shaft of a machine tool (not shown). Since the configuration and function of the collet chuck 20 are the same as those of a general collet chuck, a description thereof will be omitted.

The fixing body 30 has a main body 31 and a fixing part 33 . The main body 31 takes the shape of a disc having a predetermined thickness and diameter and supports the collet chuck 20 . In addition, a central passage 31a is provided in the center of the main body 31. The central passage 31a is a hole through which a rotary shaft (not shown) formed in the central shaft portion of the collet chuck 20 passes. The rotating shaft passes through the central passage 31a and applies a rotational force to the center shaft 43.

The fixing part 33 is a part coupled to the machine tool. A known fixing means for fixing the fixing part 33 is provided in the machine tool. After all, the angle head device 10 is to maintain a state mounted on the machine tool through the fixing body 30.

A cutting oil injection unit 34 is located above the fixing unit 33 . The cutting oil injection unit 34 serves to receive cutting oil supplied from the outside and guide it to the cutting oil tube 36 . In addition, the cutting oil injection unit 34 is provided with an injection hole 34a. The injection hole 34a is a hole through which cutting oil is injected. The cutting oil flowing into the injection hole 34a goes down to the cutting oil tube 36.

The cutting oil tube 36 is a hollow pipe having a certain inner diameter, and one end is connected to the injection hole 34a and the other end is connected to the distribution tube 53 of the cutting guide part 50. As shown in FIG. 6, the cutting oil tube 36 passes through the inside of the fixing part 33 and the main body 31.

The output unit 40 includes a casing 41, a center shaft 43, an electric shaft 45b, a tool mounting part 45c, a cutting guide part 50, and a nozzle part 57.

The casing 41 is fixed to the lower surface of the main body 31 and has an open passage 41a in the upper center. The open passage 41a is a passage through which the rotating shaft of the collet chuck described above passes.

The center shaft 43 is a member installed vertically to be axially rotatable inside the casing 41, and has a driving bevel gear 43a at its lower end. Since the fixed body 30 is coupled to the machine tool and the casing 41 is fixed to the lower portion of the fixed body 30, naturally the casing 41 is fixed and the center shaft 43 is inside the casing 41. pivot in

The transmission shaft 45b is an axis symmetrically disposed with the center shaft 43 at the center and has a driven bevel gear 45a at an end thereof. Although four electric shafts 45b are applied to the output unit 40 shown in FIG. 4, the applied number of electric shafts 45b may vary depending on the embodiment. For example, as shown in FIG. 7, two may be applied, or three or five or more may be applied. In addition, in this embodiment, the central axis of the electric shaft 45b and the central axis of the center shaft 43 are orthogonal. However, the angle between the transmission shaft 45b with respect to the center shaft 43 can also be designed differently.

The driven bevel gear 45a of the electric shaft meshes with the drive bevel gear 43a. Therefore, all the transmission shafts (45b) follow the shaft rotation of the center shaft (43) and rotate simultaneously.

In addition, each transmission shaft 45b extends to the outside of the casing 41 and has a tool mounting portion 45c at its extended end. The tool mounting portion 45c is a part to which a tool such as a drill or milling cutter is fixed.

Meanwhile, the cutting oil guide unit 50 serves to receive the cutting oil supplied through the cutting oil tube 36 and guide it toward the nozzle unit 57, and includes a plurality of distribution tubes 53. The cutting oil supplied through the cutting oil tube 36 is divided into each distribution tube 53 and flows.

The distribution tube 53 is a hollow pipe providing a flow path 53a, and four straight distribution tube parts are connected to form a substantially rectangular structure. A gate 55a and a nozzle unit 57 are provided at the end of each distribution tube 53 .

The gate 55a is a passage through which cutting oil passes and is opened and closed by a blocking screw 55b. When the gate 55a is blocked by the blocking screw 55b, the supply of cutting oil is naturally stopped. Cutting oil can be supplied to the nozzle unit 57 only when the blocking screw 55b is unscrewed to open the gate 55a.

The nozzle unit 57 injects cutting oil that has passed through the gate 55a, and includes a ball housing 57a, an opening/closing ball 57b, and an extension spray pipe 57e. The ball housing 57a is a mechanical element connected to the end of the distribution tube 53 and rotatably accommodates the opening and closing balls 57b. The ball housing 57a plays the same role as a valve casing in a ball valve.

The opening and closing ball 57b is a spherical member rotatably accommodated inside the ball housing 57a and has an inner passage 57c in the center. The inner passage 57c is a hole through which cutting oil passes. That is, the cutting oil passing through the flow path 53a is ejected to the outside through the inner passage 57c.

The extension pipe 57e is a hollow tube extending in the longitudinal direction, and is fixed to the opening/closing ball 57b and injects the cutting oil passing through the opening/closing ball to a target point. The inner diameter of the extended jet pipe 57e is the same as that of the inner passage 57c. In addition, the extended spray pipe 57e serves as a handle operated by the user to adjust the spray direction. That is, the user can adjust the injection direction by holding the extension injection pipe 57e with his hand and rotating the extension injection pipe 57e in the direction of the arrow a or other directions, for example. The opening and closing ball 57b and the extended spray pipe 57e constitute the spray nozzle 57f as one body.

7 is a perspective view showing a modified example of a multi-axis angle head device for a machine tool according to an embodiment of the present invention, and FIG. 8 is a view showing the inside of the output unit shown in FIG. 7 .

Hereinafter, the same reference numerals as the above reference numerals indicate the same members having the same function.

Referring to the drawings, it can be seen that two transmission shafts 45b are installed in the case 41. The electric shaft 45b receives the rotational force of the center shaft 43 and rotates the tool mounting portion 45c. In addition, a nozzle part 57 is disposed on the side of each tool mounting part 45c. The nozzle unit 57 ejects the cooling water that has passed through the receiver 51 and the distribution tube 53 to a target location.

As shown, a blocking parking groove 41f is formed on the outer side of the casing 41. The blocking parking groove 41f is a groove into which the extended injection pipe 57e rotated 90 degrees in the direction of arrow b is inserted. As the extension pipe 57e is inserted into the blocking parking groove 41f, the flow path 53a is blocked, and the ejection of cutting oil is stopped. The user can prevent unnecessary waste of cutting oil by turning the injection nozzle 57f in the direction of the arrow b. For example, cutting oil is supplied only to the side of the tool being used. Blocking parking grooves 41f are formed on the side of all injection nozzles 57f.

FIG. 9B shows a state in which the injection nozzle 57f opens the flow path 53a, and FIG. 9C shows a state in which the flow path 53a is blocked. The operation of the spray nozzle 57f is manually performed by a worker.

10 to 12 are diagrams for explaining another type of nozzle unit 60 applicable to the multi-axis angle head device 10 for a machine tool according to an embodiment of the present invention and an operation method of the nozzle unit.

As shown, the nozzle unit 60 of another form includes an open chamber 71, a branch pipe 54, a blocking block 63, a ball housing 61, a spray nozzle 57f, and a latch 65. provide

The open chamber 71 is a box-shaped member built into the casing 41 and having a space 71a open to the outside of the casing, and accommodates the blocking block 63 and the ball housing 61. The blocking block 63 is accommodated in the open chamber 71 to be position-adjustable, and the ball housing 61 is detachable from the open chamber 71 .

Further, the open chamber 71 is provided with a locking jaw 71f, first and

second ports

71c and 71e, and a latch hole 71k. The locking jaw 71f is a protruding portion supporting the blocking block 63 and prevents the blocking block 63 from falling out of the open chamber 71.

The first port 71c is a hole formed on one side of the open chamber 71 and communicates with the end of the distribution tube 53. The cutting oil supplied through the flow path 53a may flow into the space 71a through the first port 71c. The second port 71e is a through hole formed on the rear wall of the open chamber 71 and is coupled to the branch pipe 54. It communicates with the pressure passage 54a of the branch pipe 54.

The latch hole 71k is a through hole through which an end of a latch 65 to be described later passes. That is, by passing the latch 65 moving in the direction of the arrow m, the end of the latch 65 is fitted into the latch engaging groove 61a.

The branch pipe 54 is a hollow pipe having one end connected to the distribution tube 53 and the other end connected to the second port 71e. The branch pipe 54 passes some of the cutting oil inside the distribution tube in the direction of arrow g and guides it to the space 71a, or sends the cutting oil inside the space 71a to the distribution tube when the internal pressure of the open chamber rises. That is, when the blocking block 63 is pushed in the direction of the arrow k, the cutting oil inside the space 71a is guided to the distribution tube 53.

The blocking block 63 is a hexahedron-shaped member having a certain thickness and is positionally adjustable inside the open chamber 71 . That is, as shown in FIG. 10, under the pressure of the cutting oil coming in the direction of the arrow g, the open chamber 71 waits for being caught on the locking jaw 71f or when the ball housing 61 is pushed into the open chamber 71. ) is to retreat to the rear wall of the

In particular, the blocking block 63 blocks the first port 71c in a state caught on the locking jaw 71f. This is to prevent the cutting oil from flowing into the space portion 71a. When the ball housing 61 is separated, cutting oil simultaneously flows in through the first port 71c and the second port 71e, and the cutting oil flowing into the first port 71c flows directly out of the open chamber 71. Therefore, the blocking block 63 receives the pressure of the cutting oil flowing into the second port 71e and is pushed up to the locking jaw 71f to block the first port 71c. In a state in which the blocking block 63 blocks the first port 71c, cutting oil is not ejected through the corresponding open chamber 71.

In addition, a latch hole 41m and a restraining groove 41n are provided on one side of the open chamber 71 . The latch hole 41m is a passage for accommodating the latch 65 so as to be movable in the direction of arrow m or in the opposite direction. The restraining groove 41n is a groove for accommodating the receiving portion 65a of the latch 65. The accommodating and engaging portion 65a accommodates the restraining groove 41n and prevents the latch 65 from falling out.

As shown in FIG. 12, the latch 65 allows the ball housing 61 fitted in the open chamber 71 to remain mounted in the open chamber. That is, it is inserted into the latch locking groove 61a of the ball housing 61 inserted into the open chamber 71 to prevent the ball housing 61 from falling out.

The latch 65 takes the form of a plate having a certain thickness and has a holding portion 65a and a handle portion 65b. The accommodating and engaging portion 65a is a protrusion accommodated in the restraining groove 41n, and is movable within the restraining groove 41n. The handle portion 65b is a portion that the user holds by hand. The user may hold the handle portion 65b and move the latch 65 in the direction of the arrow m or in the opposite direction.

On the other hand, the ball housing 61, as a hexahedral member having a size that can be accommodated in the space portion 71a, incorporates the spray nozzle 57f described above. An inlet hole 61c is formed on the side of the ball housing 61 . In addition, a latch engaging groove 61a is provided on the opposite side of the inlet hole 61c.

As shown in FIG. 12, the inlet hole 61c faces the first port 71c in a state where the ball housing 61 is completely inserted into the open chamber 71. The cutting oil introduced through the first port 71c passes through the inlet hole 61c and the spray nozzle 57f and is ejected to the outside. When the ball housing 61 is completely inserted into the open chamber 71, the end of the latch 65 is fitted into the latch catching groove 61a of the ball housing 61 as described above.

Thus, the angle head device 10 of the type shown in FIGS. 10 to 12 is, so to speak, a ball housing 61 fitting method. That is, in order to spray the cutting oil, the ball housing is inserted into the open chamber 71, and when there is no need to spray the cutting oil, the ball housing 61 is simply separated. By separating the ball housing 61, waste of cutting oil can be prevented.

In the above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications are possible by those skilled in the art within the scope of the technical idea of the present invention.

Claims

A collet chuck that rotates by receiving rotational force from the main shaft of the machine tool;

a fixing body positioned below the collet chuck while being supported by the machine tool and having a cutting oil tube through which cutting oil supplied from the outside passes;

A casing coupled to the lower part of the fixed body, a center shaft that is installed to be axially rotatable in the casing and rotates by receiving rotational force from the collet chuck, is symmetrically arranged with the center shaft at the center, extends to the outside of the casing, and receives rotational force from the center shaft A plurality of axially rotating electric shafts, a tool mounting part provided at the extended end of the electric shaft and in which a tool is mounted, a cutting oil guiding part provided inside the casing and receiving and passing the cutting oil supplied through the cutting oil tube, and a cutting oil delivered from the cutting oil guiding part. Including an output unit having a nozzle unit for ejection,

Multi-axis angle head device for machine tools.
According to claim 1,

The cutting guide part;

A distribution tube for guiding the cutting oil received through the cutting oil tube to each nozzle unit,

Nozzle unit;

A ball housing connected to the end of each distribution tube;

An opening and closing ball rotatably provided inside the ball housing, having an inner passage through which cutting oil passes, and opening and closing the passage through a rotational motion;

Fixed to the opening and closing ball and having an extension injection pipe for ejecting cutting oil passing through the opening and closing ball,

Multi-axis angle head device for machine tools.
According to claim 2,

The extension spray pipe is a hollow pipe extending in the longitudinal direction, and serves as a handle operated by the user to adjust the spray direction,

In the casing, a blocking parking groove is formed to accommodate the injection nozzle in a state in which the internal passage of the opening and closing ball is blocked and maintain the blocking state of the internal passage,

Multi-axis angle head device for machine tools.
According to claim 1,

The cutting guide part;

A distribution tube for guiding the cutting oil received through the cutting oil tube to each nozzle unit,

Nozzle unit;

It is built in the casing but provides a space that is open to the outside of the casing, has a locking jaw on the inside, a first port connected to the distribution tube is formed on the side, and an open chamber in which a second port is formed through the rear wall ,

One end is coupled to the distribution tube and the other end is connected to the second port, and guides some of the cutting oil inside the distribution tube to the inside of the open chamber, or guides the cutting oil inside the open chamber to the distribution tube when the internal pressure of the open chamber rises. coffin,

A blocking block installed to be position-adjustable in the open chamber, which is moved toward the hooking jaw by the pressure of the cutting oil introduced through the branch pipe and blocks the first port while being caught on the hooking jaw;

A ball housing that enters the open chamber and opens the first port by pushing the blocking block and accepts the cutting oil flowing through the first port;

An opening and closing ball rotatably provided inside the ball housing, having an inner passage through which cutting oil passes, and opening and closing the passage through a rotational motion;

An extension spray pipe fixed to the opening and closing ball and extending to the outside of the casing and injecting cutting oil passing through the opening and closing ball;

Including a latch that keeps the ball housing mounted in the open chamber,

Multi-axis angle head device for machine tools.