TWI782552B - Water guiding nut and its application - Google Patents

Abstract

The present invention disclosures a water guiding nut with an inner ring and an outer ring which is rotatable relative to the inner ring. Wherein a connecting hole, which is mounted through on the wall of the outer ring, and at least one inlet hole, which is mounted through on the wall of the inner ring, are communicate to each other directly or indirectly. The outer ring can be configured with a cutting fluid suppling device, then a cutting fluid may be guided into the inner ring from the connecting hole and the inlet hole. The present invention contributes a characteristic to reduce an overall volume of the machine equipment which is connected to the cutting fluid suppling device.

Description

Water outlet nut and equipment containing water outlet nut

A nut, especially a water outlet nut and equipment including the water outlet nut.

A processing machine, such as a lathe, milling machine or drilling machine, can produce processing techniques such as cutting a metal workpiece according to requirements, so that the processing machine is widely used in various metal processing fields. When the metal workpiece is processed by the processing machine, a cutting fluid is often used in conjunction with it. The cutting fluid can provide cooling and lubrication to a processing area where the machine tool and the metal workpiece are in contact with each other, and at the same time can help to exclude process to optimize the overall machining process of the metal workpiece.

The current way to provide the cutting fluid is to add a pipeline to the processing machine so that the cutting fluid can be sprayed towards the processing area through the pipeline. However, the installation of the pipeline cannot directly go from the center of a processing tool to the The direct injection of the processing area also makes the structure of the processing machine more complicated, and the outlet of the pipeline needs to be adjacent to the processing area, which may easily cause the range of the processing area to be disturbed or limited.

There is also a central water outlet device that can directly spray the cutting fluid toward the processing area on one of the central axis of the processing machine and the center of the machining tool. However, the center water outlet device is not only relatively expensive in equipment cost, but also because the cutting fluid requires It flows through the processing machine body, which causes troublesome cleaning, and because of its relatively large volume, it often interferes with the processing tool and affects the processing area. In view of this, the development of a A central water outlet device with a simple structure and reduced volume is an urgent goal for the development of related craft industries.

In order to develop a central water outlet device that can simplify the structure and reduce the excess volume, the present invention provides a water outlet nut, which includes an inner ring and an outer ring rotatably sleeved around the inner ring, the outer ring An interface is radially pierced on the outer ring wall of the inner ring, and at least one liquid inlet hole is pierced on the outer ring wall of the inner ring corresponding to the position of the interface, and the liquid inlet hole can directly or indirectly communicate with the interface.

Wherein, the outer ring wall of the inner ring is surrounded by a movable groove, and a groove bottom at the bottom and a groove side wall at both sides are further defined in the movable groove, and the liquid inlet is pierced on the bottom of the groove. The outer ring is rotatably accommodated in the movable groove, and when the outer ring is accommodated in the movable groove, a gap is formed between the outer ring and the inner ring.

Wherein, an indwelling space is formed between the side walls of the groove on both sides of the movable groove and partial areas of the two sides of the outer ring, and the indwelling space communicates with the gap.

Wherein, the two sides of the outer ring are provided with an annular groove to the recess of the inner wall of the ring, so that a stepped pattern with a depth difference is produced on the two sides of the outer ring. When the outer ring is placed in the movable groove , the indwelling space is generated between the annular groove located on both sides and the two side walls of the groove respectively.

Wherein, a sealing member protrudes around the inner wall of the inner ring, and the sealing member includes an elastic ring made of rubber.

Further, a transmission assembly is arranged between the outer ring and the inner ring, the transmission assembly includes a metal seat and a plurality of metal balls, the metal seat is a thin annular body, and the metal seat is sheathed in the groove of the movable groove Out of the bottom surface and accommodated in the gap, the ring side wall of the metal seat is perforated with a plurality of ball holes and a plurality of perforations, and a metal ball is rotatably accommodated in each of the ball holes, and the plurality of perforations are opposite to each other. It should be arranged near the axial position of the interface and/or the liquid inlet hole, and the liquid inlet hole can directly or indirectly communicate with the interface through a plurality of through holes.

Further, 24 ball holes are respectively circumscribed and spaced apart on the side walls of the rings at both ends of the metal seat.

Further, an interface portion protrudes radially outward from the outer ring wall of the outer ring, and the interface portion radially passes through the interface.

The water outlet nut provided by the present invention can achieve the following advantages:

1. Through the water outlet nut, the feature of spraying the cutting fluid directly towards the metal workpiece through the tool can be realized, and the service life of the tool can also be increased.

2. The water outlet nut has a simple structure and small volume, which effectively reduces the volume of the machining axis, and further prevents the tool from being affected by a liquid injection pipeline or a central water outlet when the tool is being processed. The device interferes to limit its processing area.

3. The water outlet nut can be applied to the processing axis currently on the market to prevent unnecessary waste of cost.

4. The water outlet nut changes the way the cutting fluid enters a machining axis, so that the cutting fluid only needs to pass through a part of the free end of the machining axis, making the cleaning of the machining axis more convenient and reducing labor costs burden and prolong the service life of the processing machine.

5. The setting of the water outlet nut reduces the overall volume of the machining axis, further reducing the interference between adjacent tools, so that a processing machine can increase the number of tools installed and perform finer processing means.

10: outer ring

11: Interface

11A: interface part

12: Annular groove

20: inner ring

21: Inlet hole

22: Activity slot

221: Groove bottom

222: groove side wall

223: Leave space

23: Assembly end

24: Fixture end

25: Seals

25A: elastic ring

30: Transmission components

31: metal seat

311: ball hole

312: perforation

32: metal ball

40: collet

41: Slit

50: Knife

51: work surface

52: Outlet channel

60: Machining axis

61: free end

62: diversion space

Fig. 1 is a perspective view of a preferred embodiment of the present invention

Figure 2 is an exploded view of a preferred embodiment of the present invention

Fig. 3 is a partial enlarged view of a preferred embodiment of the present invention

Fig. 4 is an assembly and exploded view of a preferred embodiment of the present invention

Figure 5 is a schematic diagram of the use of a preferred embodiment of the present invention

Please refer to Figures 1 to 3, which are preferred embodiments of the water outlet nut provided by the present invention, which include an outer ring 10 and an inner ring 20, the outer ring 10 and the inner ring 20 are connected by a metal material made, and the outer ring 10 is sleeved around the inner ring 20, and the outer ring 10 can rotate relative to the inner ring 20, and the outer ring wall of the outer ring 10 is radially pierced with an interface 11, In this embodiment, the outer ring wall of the outer ring 10 protrudes radially outwards with an interface portion 11A, and the interface portion 11A radially penetrates the interface 11, and the outer ring 10 can communicate with a cutting tool through the interface portion 11A. The fluid supply equipment is detachably connected, and communicates with the cutting fluid supply equipment through the interface 11 to introduce a cutting fluid.

The outer wall of the inner ring 20 , corresponding to the vicinity of the axial position of the interface 11 , is perforated with at least one liquid inlet hole 21 , and the liquid inlet hole 21 can directly or indirectly communicate with the interface 11 . In this implementation, the outer ring wall of the inner ring 20 is surrounded and arranged at intervals with four liquid inlet holes 21, and when each of the liquid inlet holes 21 is rotated to the axial position corresponding to the interface 11, each of the liquid inlet holes The bore 21 is not coaxial with the interface 11 .

The outer ring wall of the inner ring 20 is surrounded by a movable groove 22, which can further define a groove bottom surface 221 at the bottom and a groove side wall 222 on both sides, and the groove bottom surface 221 penetrates With the liquid inlet hole 21, the outer ring 10 can be rotatably accommodated in the movable groove 22, so that the relative rotational relationship between the inner ring 20 and the outer ring 10 can be accommodated in the movable groove according to the outer ring 10. The structure of the groove 22 is more stable and smooth. When the outer ring 10 is accommodated in the movable groove 22, a gap is formed between the outer ring 10 and the inner ring 20, so that when the cutting fluid is introduced through the interface 11, it can flow through the gap to the liquid inlet hole twenty one.

Preferably, an indwelling space 223 is formed between the groove side walls 222 on both sides of the movable groove 22 and part of the two sides of the outer ring 10, and the indwelling space 223 communicates with the gap, so that the cutting fluid passes through the interface When 11 is introduced, it can flow to the indwelling space 223, which can not only reduce the contact area between the inner ring 20 and the outer ring 10, and when the indwelling space 223 is filled with the cutting fluid, the cutting fluid can also A lubricating effect is generated, so that the rotation between the inner ring 20 and the outer ring 10 can be smoother.

In this embodiment, the two sides of the outer ring 10 are provided with an annular groove 12 to the inner wall of the ring, so that the two sides of the outer ring 10 are formed between the inner wall of the outer ring 10 and the outer wall. A stepped pattern with different depths, when the outer ring 10 is accommodated in the movable groove 22, the indwelling space is generated between the annular groove 12 on both sides and the two groove side walls 222 of the movable groove 22 respectively 223. In this way, the water outlet nut provided by the present invention can achieve the characteristics of reducing the contact area between the inner ring 20 and the outer ring 10 and producing a lubricating effect.

A transmission assembly 30 is arranged between the outer ring 10 and the inner ring 20, so that a relative rotation relationship can be generated between the outer ring 10 and the inner ring 20. The transmission assembly 30 is not limited, and it can be placed on the A rotating bearing in the gap or at least one metal ball can be rolled between any contact surface of the outer ring 10 and the inner ring 20 . In this embodiment, the transmission assembly 30 includes a metal seat 31 and a plurality of metal balls 32, the metal seat 31 is a thin annular body, and is sleeved outside the groove bottom surface 221 of the movable groove 22, and accommodated in the gap Inside, a plurality of ball holes 311 and a plurality of perforations 312 are perforated on the ring side wall of the metal seat 31. Preferably, each ball hole 311 is positioned symmetrically on the ring side wall of the metal seat 31, each The metal ball 32 is rotatably accommodated in the ball hole 311, and one of the two opposite places on the outer surface of the metal ball 32 placed in each of the ball holes 311 abuts against the groove bottom surface 221 and the outer surface respectively. The ring inner wall of the ring 10, so that the outer ring 10 can rotate relative to the inner ring 20 by rolling the metal ball 32.

In this embodiment, 24 ball holes 311 are arranged around and spaced apart from the sidewalls of both ends of the metal seat 31 , and each of the ball holes 311 is provided with a metal ball 32 . The metal seat 31 Each of the metal balls 32 provided at both ends can provide a uniform and symmetrical abutting force on the groove bottom surface 221 and the ring inner wall of the outer ring 10, so that the rotation between the inner ring 20 and the outer ring 10 can be avoided. Stuck due to uneven force.

A plurality of perforations 312 are correspondingly arranged near the axial position of the interface 11 and/or the liquid inlet 21, so that the liquid inlet 21 can directly or indirectly communicate with the interface 11 through the plurality of perforations 312. Preferably, The axial position of each of the perforations 312 is between the interface 11 and the liquid inlet hole 21. When each of the perforations 312 is rotated to the axial position corresponding to the interface 11 and/or the liquid inlet hole 21, the through holes 312 is not coaxial with each of the liquid inlet holes 21 and/or the interface 11 . In this embodiment, the outer ring wall of the metal seat 31 is surrounded by six perforations 312, and the diameter of each perforation 312 is slightly larger than the diameter of each liquid inlet hole 21. When each perforation 312 is rotated to When corresponding to the axial positions of the interface 11 and the liquid inlet 21 , each of the through holes 312 communicates with each of the liquid inlet 21 and is not coaxial with the interface 11 .

Please refer to Fig. 4 and Fig. 5, the water outlet nut provided by the present invention is used to assemble a rod-shaped tool 50 onto a machining axis 60, and the two ends of the inner ring 20 are respectively an assembly end 23 and A clamp end 24, the inner ring 20 protrudes around the inner wall of the clamp end 24 and is provided with a seal 25. Preferably, the seal 25 includes an elastic ring 25A made of rubber. When assembling, the inner The inner wall of the clamp end 24 of the ring 20 is provided with a conventional collet 40, and one end of the collet abuts against the sealing member 25. The collet 40 is a metal cylinder, and the collet 40 is On the ring wall, a plurality of slits 41 are provided alternately and spaced apart from each other in the axial direction, so that the collet 40 can deform radially through the plurality of slits 41 to produce elastic characteristics. In this way, the collet 40 can firmly hold one end of the tool 50 and make a working surface 51 of the other end of the tool 50 pass through the inner ring 20 and protrude from the clamp end 24 . The elastic ring 25A at the clamp end 24 can be further deformed according to the outer diameter of the tool 50 , so that the elastic ring 25A can produce an additional clamping effect.

Then, the inner ring 20 can install the collet 40 and the tool 50 on a free end 61 of the machining axis 60 through the assembly end 23, wherein, when the inner ring 20 is assembled on the free end 61, A flow guide space 62 is formed between the inner ring 20 and the free end 61 , and the flow guide space 62 can communicate with the liquid inlet hole. A liquid outlet channel 52 runs through the center of the cutter 50 in the axial direction, and the liquid outlet channel 52 communicates with the flow guide space 62 .

When the processing axis 60 rotates, the inner ring 20 rotates relative to the outer ring 10. At this time, the tool 50 clamped on the clamp end 24 can rotate through the inner ring 20, and the work can be further performed. The surface 51 produces a processing technology such as cutting on a metal workpiece, so that the metal workpiece is formed corresponding to the processing technology.

The outer ring 10 is connected to the cutting fluid supply device through the interface portion 11A, so that the cutting fluid can be introduced into the gap and the through hole 312 through the interface 11, and enter the liquid inlet hole 21. At this time, the cutting fluid will be Further flowing through the plurality of slits 41 on the collet 40, due to the arrangement of the seal 25 and the elastic ring 25A, the cutting fluid will not flow out directly toward the clamp end 24, thereby avoiding the cutting Fluid leaks between the inner ring 20 and the cutter 50 . Next, the cutting fluid flows along the slit 41 toward the assembly end 223, gathers in the flow guide space 62, and finally flows out of the tool 50 through the liquid outlet channel 52, so that the tool 50 can The feature of injecting the cutting fluid directly towards the center of the machined metal workpiece.

The water outlet nut provided by the present invention can achieve the following advantages:

1. Through the water outlet nut, the feature of spraying the cutting fluid directly towards the metal workpiece through the tool 50 can be realized, and the service life of the tool 50 can also be increased.

2. The water outlet nut has a simple structure and a small volume, which effectively reduces the volume of the machining axis 60 and further prevents the cutting tool 50 from being affected by a liquid injection pipeline or a liquid injection pipe currently on the market when it is being processed. The central water outlet device interferes to limit its processing area.

3. The outlet nut can be applied to the machining axis 60 currently on the market, preventing unnecessary waste of cost.

4. The water outlet nut changes the way the cutting fluid enters the machining axis 60, so that the cutting fluid only needs to pass through a part of the free end 61 of the machining axis 60, so that the machining axis 60 is clean It can be more convenient, reduce the burden of labor costs and prolong the service life of the machining axis 60 .

5. The setting of the water outlet nut reduces the overall volume of the machining axis, further reduces the interference between adjacent cutters 50, so that a processing machine can increase the number of cutters 50 installed, and perform finer processing means.

10: outer ring

11: Interface

11A: interface part

20: inner ring

23: Assembly end

24: Fixture end

Claims (7)

A water outlet nut, which includes an inner ring and an outer ring rotatably sleeved around the inner ring, the outer ring wall of the outer ring is radially pierced with a port, the outer ring wall of the inner ring, And corresponding to the position of the interface, at least one liquid inlet hole is perforated, and the liquid inlet hole can directly or indirectly communicate with the interface, wherein: a movable groove is provided in the concave surrounding the outer ring wall of the inner ring, and the movable groove is further There is a groove bottom at the bottom and a groove side wall at both sides, the bottom of the groove is pierced with the liquid inlet, the outer ring can be rotatably accommodated in the movable groove, and the outer ring is accommodated in the movable When in the groove, a gap is formed between the outer ring and the inner ring, and an indwelling space is formed between the side walls of the groove on both sides of the movable groove and parts of the two sides of the outer ring, and the indwelling space communicates with the gap; and a transmission assembly is arranged between the outer ring and the inner ring, the transmission assembly includes a metal seat and a plurality of metal balls, the metal seat is a thin annular body, and is sleeved outside the bottom surface of the movable groove , and accommodated in the gap, a plurality of ball holes and a plurality of perforations are perforated on the ring side wall of the metal seat, and a metal ball is rotatably accommodated in each of the ball holes, and the plurality of perforations are correspondingly arranged on the Near the axial position of the interface and/or the liquid inlet hole, the liquid inlet hole can directly or indirectly communicate with the interface through a plurality of through holes. As for the water outlet nut described in claim 1, an annular groove is provided on both sides of the outer ring to the inner wall of the ring, so that a stepped pattern with a difference in depth is formed on both sides of the outer ring. When the outer ring is accommodated in the movable groove, the indwelling space is formed between the annular groove on the two sides and the two side walls of the groove respectively. According to the water outlet nut described in claim 2, a sealing member protrudes around the inner wall of the inner ring, and the sealing member includes an elastic ring made of rubber. According to the water outlet nut described in claim 3, 24 ball holes are respectively surrounded and spaced on the side walls of the rings at both ends of the metal seat. According to the water outlet nut described in Claim 4, an interface portion protrudes radially outward from the outer ring wall of the outer ring, and the interface portion radially penetrates the interface. A device comprising a water outlet nut, which includes a water outlet nut as described in any one of Claims 1 to 5, and a processing axis and a processing shaft respectively connected to an assembly end of the water outlet nut end and a clamp end A cutting tool, wherein: a diversion space is formed between the inner ring and the machining axis, the diversion space communicates with the liquid inlet hole, and a liquid outlet channel runs through the center of the tool axially, the liquid outlet The flow channel communicates with the flow guiding space. As for the equipment including the water outlet nut described in claim 6, the inner ring is provided with a collet on the inner wall of the clamp end, the collet is a metal cylinder, and the two ends of the ring wall are alternately and spaced A plurality of slits are opened in the axial direction, and the collet produces elastic properties of radial deformation through the slits, and the collet holds the tool.

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