CN210280703U - Vertical machining center direct-connected main shaft center goes out water structure - Google Patents
Vertical machining center direct-connected main shaft center goes out water structure Download PDFInfo
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- CN210280703U CN210280703U CN201920609258.XU CN201920609258U CN210280703U CN 210280703 U CN210280703 U CN 210280703U CN 201920609258 U CN201920609258 U CN 201920609258U CN 210280703 U CN210280703 U CN 210280703U
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- base
- rotary joint
- rotary
- joint
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 230000007704 transition Effects 0.000 claims abstract description 36
- 238000007667 floating Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 27
- 230000000694 effects Effects 0.000 abstract description 8
- 210000001503 joint Anatomy 0.000 description 8
- 238000007664 blowing Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a vertical machining center direct-connected main shaft center goes out water structure, including hollow base, rotary joint mount pad and rotary joint, rotary joint sets up on the rotary joint mount pad, rotary joint is by the seal, floating body and flange body are constituteed, the seal sets up the inboard at the rotary joint mount pad, floating body sets up the upside and the floating installation in the inboard of the flange body at the seal, the flange body sets up the upper end at the rotary joint mount pad, the upper end and the shuttle valve connection of the flange body, the upper end knot of base is equipped with rotatory transition joint, form the labyrinth ring between the upper end of rotatory transition joint and base, the upper portion and the lower part of rotatory transition joint respectively with the lower part of seal and the top threaded connection of motor rotation axle, install a plurality of first drain joint on the lateral wall of rotary joint mount pad. The structure can effectively improve the overflow problem of the rotary joint when the shuttle valve is switched by water and gas, has better waterproof effect on the motor and better protects the motor.
Description
Technical Field
The utility model relates to a main shaft center goes out water structure specifically is a vertical machining center direct-connected main shaft center goes out water structure.
Background
The rotary joint of the existing direct-connected spindle center water outlet structure of the vertical machining center is generally installed on a rotary joint installation seat, the rotary joint installation seat is installed on the upper side of a base, and the base is fixed on a motor body. The rotary joint mounting seat is usually in a side blowing structural form, so that the problem of water overflow of the rotary joint during water-gas switching of the shuttle valve is solved. And a side blowing port is arranged on the side wall of one side of the rotary joint mounting seat, and a drainage joint is arranged on the side wall of the other side of the rotary joint mounting seat. When the rotary joint mounting seat works, air is blown to the inner side of the rotary joint mounting seat through the side air blowing port, and water is discharged outwards through the water discharging joint. However, water and gas are not in seamless butt joint in the water-gas switching process of the shuttle valve, the pressure and flow rate established by the water pump are delayed, the time delay is caused when the air source passes through the electromagnetic valve, the switching action of the shuttle valve is also delayed, all the time delay can cause that a small amount of water cannot be normally discharged outwards from the water discharging connector, but overflows from the water discharging connector and falls into the base, enters the lower part of the rotating shaft of the motor and flows to the tail end face of the motor body, and the part of water can be remained all the time, so that the performance of the motor can be influenced for.
Disclosure of Invention
The utility model aims to solve the technical problem that, to prior art not enough, provide a vertical machining center direct-connected spindle center water outlet structure that can effectively improve the overflow problem of rotary joint when shuttle valve aqueous vapor switches.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a vertical machining center direct-connected spindle center water outlet structure comprises a hollow base, a rotary joint mounting seat and a rotary joint, wherein the base is fixed at the upper end of a motor body, the rotary joint mounting seat is arranged on the upper side of the base, the rotary joint is arranged on the rotary joint mounting seat and consists of a sealing body, a floating body and a flange body, the sealing body is arranged on the inner side of the rotary joint mounting seat, the floating body is arranged on the upper side of the sealing body and is arranged on the inner side of the flange body in a floating mode through a spring, the flange body is arranged at the upper end of the rotary joint mounting seat, the upper end of the flange body is connected with a shuttle valve through a pipe joint and a pipeline, the upper end of the base is buckled with a rotary transition joint, and a labyrinth ring is formed between the rotary transition joint and the upper end of the base, the upper part of the rotary transition joint is in threaded connection with the lower part of the sealing body, the lower part of the rotary transition joint is in threaded connection with the top end of a motor rotating shaft, a plurality of first drainage joints are mounted on the side wall of the rotary joint mounting seat, and the first drainage joints are respectively communicated with the inner cavity of the rotary joint mounting seat.
The utility model discloses among the vertical machining center direct-connected main shaft center water outlet structure, the labyrinth ring that forms between the upper end of rotary transition joint and base can effectively improve the overflow problem of rotary joint when shuttle valve aqueous vapor switches, prevents that water from getting into the inner chamber of base to prevent that water from getting into the motor body tail end face from the inner chamber of base, play better motor water-proof effects, protect the motor better. Even if a small amount of water enters the inner cavity of the base through the labyrinth ring, the water can only slowly climb into the inner cavity of the base along the wall of the labyrinth ring instead of entering in a splashing way, so that the water amount entering the inner cavity of the base is controlled in a tiny range.
Preferably, the upper end of base an organic whole be provided with the bulge loop of epirelief, rotatory transition joint's lateral wall be provided with the annular, the bulge loop stretch into the annular in, the up end of bulge loop with the top surface of annular between form first clearance, the height of first clearance with the stroke looks adaptation of floating body, the lateral surface of bulge loop with the lateral surface of annular between form the second clearance, the width in second clearance be 0.3 ~ 0.8 mm. The small clearance of 0.3-0.8 mm can ensure the waterproof effect of the labyrinth ring.
Preferably, a first sealing ring is installed between the rotary transition joint and the sealing body, a second sealing ring is installed between the rotary transition joint and the motor rotating shaft, a third sealing ring is installed between the rotary joint installation seat and the base, the base spigot is centered and fixed at the upper end of the motor body through a screw, and a fourth sealing ring is installed between the base and the motor body. The first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring can guarantee the sealing effect among the rotary transition joint, the rotary joint mounting seat, the base and the motor body.
Preferably, the rotary joint mounting seat is positioned and mounted on the upper side of the base through the outer circle of the spigot of the base, the outer diameter of the rotary joint mounting seat is close to the outer diameter of the upper end of the motor body, the inner cavity of the rotary joint mounting seat is an enlarged inner cavity, and the upper part of the rotary transition joint is positioned in the inner cavity of the rotary joint mounting seat. The inner chamber of rotary joint mount pad enlarges, and the volume of the inner chamber of rotary joint mount pad enlarges promptly, can accelerate the steam diffusion, makes the water under high pressure disperse rapidly to the inner wall of rotary joint mount pad and directly discharge through a plurality of first water discharging connector to further improve the problem that rotary joint leaked.
Furthermore, a plurality of first drainage holes are formed in the side wall of the rotary joint mounting seat, and each first drainage hole is communicated with one first drainage joint. Through increasing a plurality of first drainage holes and a plurality of first water connectors of one-to-one and as drainage channel, can in time discharge the water in the rotary joint mount pad, effectively improve the problem that has water to spill over when shuttle valve aqueous vapor switches.
Preferably, a plurality of second drainage joints are installed at the bottom of the side wall of the base and are respectively communicated with the inner cavity of the base. On the basis of a plurality of first drainage joints, a plurality of second drainage joints are added to serve as drainage channels, so that water which breaks through the wall of the labyrinth ring and slowly enters the inner cavity of the base can be drained in time, and the water is prevented from further entering the tail end face of the motor body from the inner cavity of the base.
Furthermore, the bottom of the side wall of the base is provided with a plurality of second drain holes, and each second drain hole is communicated with one second drain joint. The second drain holes and the second drain joints which are in one-to-one correspondence have good drainage effect, and can quickly drain water in the base.
Preferably, the coaxiality, the roundness, the cylindricity, the verticality, the parallelism and the symmetry of the matching surface of the rotary transition joint are controlled within 0.008mm, and the coaxiality, the roundness and the cylindricity of the inner circle and the outer circle influencing the dynamic balance are controlled within 0.03 mm. Furthermore, the cylindricity, the verticality and the parallelism of the matching surface of the base are controlled within 0.008mm, and the planeness is controlled within 0.005 mm. Furthermore, the coaxiality, the cylindricity, the verticality and the parallelism of the matching surface of the rotary joint mounting seat are controlled within 0.008mm, and the planeness is controlled within 0.005 mm. The rotating transition joint, the base and the rotating joint mounting seat are respectively subjected to strict geometric tolerance and dimensional precision control, so that the original dynamic balance of the motor can be guaranteed not to be damaged, and the central water outlet effect and the spindle machining precision are guaranteed.
Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses a vertical machining center direct-connected main shaft center goes out water structure, the labyrinth ring that forms between the upper end of its rotatory transition joint and base can effectively improve the overflow problem of rotary joint when shuttle valve aqueous vapor switches, prevents that water from getting into the inner chamber of base to prevent that water from getting into motor body tail end face from the inner chamber of base, play better motor water-proof effects, protect the motor better.
Drawings
FIG. 1 is an external view of a core water outlet structure in the embodiment;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of FIG. 2 at B;
FIG. 4 is a schematic structural view of a rotary transition joint according to example 3;
FIG. 5 is a schematic structural view of a base in embodiment 3;
fig. 6 is a schematic structural view of a swivel mount in embodiment 3.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The vertical machining center direct-connected spindle center water outlet structure of embodiment 1, as shown in fig. 1 to 6, includes a hollow base 1, a rotary joint mounting seat 2 and a rotary joint, the base 1 is fixed on the upper end of a motor body 7, the rotary joint mounting seat 2 is arranged on the upper side of the base 1, the rotary joint is arranged on the rotary joint mounting seat 2, the rotary joint in this embodiment adopts a doblin 1129 type bearingless release type rotary joint, the rotary joint is composed of a sealing body 3, a floating body 4 and a flange body 5, the sealing body 3 is arranged on the inner side of the rotary joint mounting seat 2, the floating body 4 is arranged on the upper side of the sealing body 3 and is floatingly mounted on the inner side of the flange body 5 through a spring 41, the flange body 5 is arranged on the upper end of the rotary joint mounting seat 2, the upper end of the flange body 5 is connected with a shuttle valve 53 through a joint 51 and a pipeline 52, the rotary transition joint 6 is buckled on the upper end of the base 1, form labyrinth ring 61 between the upper end of rotatory transition joint 6 and base 1, the upper portion of rotatory transition joint 6 and the lower part threaded connection of sealing body 3, the lower part of rotatory transition joint 6 and the top end threaded connection of motor rotation axle 71, seted up four first drain holes 21 and installed four first drain joint 22 on the lateral wall of rotary joint mount pad 2, every first drain hole 21 communicates with each other with a first drain joint 22, two second wash ports 11 and install two second drain joint 12 have been seted up to the bottom of the lateral wall of base 1, every second wash port 11 communicates with each other with a second drain joint 12.
In embodiment 1, the upper end of the base 1 is integrally provided with a convex ring 13, the side wall of the rotating transition joint 6 is provided with a ring groove 62, the ring 13 extends into the ring groove 62, a first gap 63 is formed between the upper end surface of the ring 13 and the top surface of the ring groove 62, the height of the first gap 63 is adapted to the stroke of the floating body 4, a second gap 64 is formed between the outer side surface of the ring 13 and the outer side surface of the ring groove 62, and the width of the second gap 64 is 0.5 mm.
In embodiment 1, a first seal ring 81 is installed between the rotation transition joint 6 and the seal body 3, a second seal ring 82 is installed between the rotation transition joint 6 and the motor rotation shaft 71, a third seal ring 83 is installed between the rotation joint installation base 2 and the base 1, the spigot of the base 1 is centered and fixed to the upper end of the motor body 7 by a screw 14, and a fourth seal ring 84 is installed between the base 1 and the motor body 7.
The difference between the vertical machining center direct-connected spindle center water outlet structure of the embodiment 2 and the embodiment 1 is that in the embodiment 2, the rotary joint installation seat 2 is installed on the upper side of the base 1 through the spigot excircle centering and positioning of the base 1, the outer diameter of the rotary joint installation seat 2 is close to the outer diameter of the upper end of the motor body 7, the inner cavity 20 of the rotary joint installation seat 2 is an enlarged inner cavity, and the upper part of the rotary transition joint 6 is located in the inner cavity 20 of the rotary joint installation seat 2.
The difference between the vertical machining center direct-connected spindle center water outlet structure of the embodiment 3 and the embodiments 1 and 3 is that, in the embodiment 3, as shown in fig. 4, the coaxiality, the roundness, the cylindricity, the verticality, the parallelism and the symmetry at the matching surface of the rotary transition joint 6 are controlled within 0.008mm, and the coaxiality, the roundness and the cylindricity of the inner circle and the outer circle influencing the dynamic balance are controlled within 0.03 mm; as shown in fig. 5, the cylindricity, verticality and parallelism of the matching surface of the base 1 are controlled within 0.008mm, and the planeness is controlled within 0.005 mm; as shown in fig. 6, the coaxiality, cylindricity, verticality and parallelism at the mating surface of the rotary joint mounting base 2 are controlled to be within 0.008mm, and the flatness is controlled to be within 0.005 mm.
When the embodiment 1-3 work, the floating body 4 floats up and down in the flange body 5, when no central blowing or central water outlet exists, the floating body 4 and the sealing body 3 are separated normally due to the action of the spring 41, and the end face distance of the sealing body 3 and the floating body 4 when the sealing body is separated normally is 1 mm. When air or water comes, the floating body 4 and the sealing body 3 are jointed and communicated, and the discharged water is discharged. When the floating body 4 and the sealing body 3 are not completely contacted at the moment when the central water outlet is opened and closed, a small amount of water overflows. The unilateral width that forms between the upper end of rotary transition joint 6 and base 1 is 0.3 ~ 0.8 mm's labyrinth ring 61 can effectively improve the overflow problem of rotary joint when shuttle valve 53 aqueous vapor switches, prevents that water from getting into the inner chamber 10 of base 1 to prevent that water from getting into motor body 7 tail end face from the inner chamber 10 of base 1, play better motor water-proof effects, protect the motor better. Even if a small amount of water passes through the labyrinth ring 61 and enters the inner cavity 10 of the base 1, the water can only slowly climb into the wall of the labyrinth ring 61 instead of entering in a splashing manner, so that the water entering the inner cavity 10 of the base 1 is small, the water entering the inner cavity 10 of the base 1 can be discharged through the two second water discharging connectors 12 at the bottom of the side wall of the base 1, and the problem of water leakage of the bearing-free disconnecting type rotary joint of the high-speed spindle is effectively solved.
In the embodiments 2 and 3, since the inner cavity 20 of the rotary joint mounting base 2 is large enough and the outer diameter thereof is almost equal to the outer diameter of the upper end of the motor body 7, the high pressure water is rapidly dispersed to the inner wall of the rotary joint mounting base 2 due to the volume expansion of the inner cavity 20 of the rotary joint mounting base 2 and is directly discharged through the four first drain holes 21 and the four first drain joints 22.
For the vertical machining center direct-connected spindle center water outlet structure of the above embodiments 1 to 3, after 72-hour center water outlet and center air blowing switching operation test, it is found that the inner cavity 10 of the base 1 is dry after disassembly, which indicates that water does not enter the inner cavity 10 of the base 1. It has been found through long-term practical observation that water is substantially discharged through the four first water discharge fittings 22 on the rotary joint mount 2.
Claims (10)
1. A vertical machining center direct-connected spindle center water outlet structure is characterized by comprising a hollow base, a rotary joint installation seat and a rotary joint, wherein the base is fixed at the upper end of a motor body, the rotary joint installation seat is arranged on the upper side of the base, the rotary joint is arranged on the rotary joint installation seat and consists of a sealing body, a floating body and a flange body, the sealing body is arranged on the inner side of the rotary joint installation seat, the floating body is arranged on the upper side of the sealing body and is arranged on the inner side of the flange body in a floating mode through a spring, the flange body is arranged at the upper end of the rotary joint installation seat, the upper end of the flange body is connected with a shuttle valve through a pipe joint and a pipeline, a rotary transition joint is buckled at the upper end of the base, and a labyrinth ring is formed between the rotary transition joint and the upper end of the base, the upper part of the rotary transition joint is in threaded connection with the lower part of the sealing body, the lower part of the rotary transition joint is in threaded connection with the top end of a motor rotating shaft, a plurality of first drainage joints are mounted on the side wall of the rotary joint mounting seat, and the first drainage joints are respectively communicated with the inner cavity of the rotary joint mounting seat.
2. The vertical machining center direct-connected spindle center water outlet structure according to claim 1, wherein an upper end of the base is integrally provided with an upward protruding collar, a ring groove is formed in a side wall of the rotary transition joint, the collar extends into the ring groove, a first gap is formed between an upper end surface of the collar and a top surface of the ring groove, the height of the first gap is matched with the stroke of the floating body, a second gap is formed between an outer side surface of the collar and an outer side surface of the ring groove, and the width of the second gap is 0.3-0.8 mm.
3. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 1, wherein a first seal ring is installed between the rotary transition joint and the seal body, a second seal ring is installed between the rotary transition joint and the motor rotation shaft, a third seal ring is installed between the rotary joint installation seat and the base, the base spigot is centered and fixed at the upper end of the motor body through a screw, and a fourth seal ring is installed between the base and the motor body.
4. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 1, wherein the rotary joint mounting seat is installed on the upper side of the base through a spigot outer circle centering and positioning of the base, the outer diameter of the rotary joint mounting seat is close to the outer diameter of the upper end of the motor body, the inner cavity of the rotary joint mounting seat is an enlarged inner cavity, and the upper portion of the rotary transition joint is located in the inner cavity of the rotary joint mounting seat.
5. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 4, wherein a plurality of first water outlet holes are formed in a side wall of the rotary joint mounting seat, and each first water outlet hole is communicated with one first water outlet joint.
6. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 1, wherein a plurality of second water discharge connectors are installed at the bottom of the side wall of the base, and the second water discharge connectors are respectively communicated with the inner cavity of the base.
7. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 6, wherein a plurality of second water discharge holes are formed in the bottom of the side wall of the base, and each second water discharge hole is communicated with one second water discharge joint.
8. The vertical machining center direct-connected spindle center water outlet structure according to claim 1, wherein coaxiality, circularity, cylindricity, verticality, parallelism and symmetry at the matching surface of the rotary transition joint are controlled within 0.008mm, and coaxiality, circularity and cylindricity of inner and outer circles influencing dynamic balance are controlled within 0.03 mm.
9. The direct-connected spindle center water outlet structure of the vertical machining center according to any one of claims 1 to 8, wherein the cylindricity, verticality and parallelism at the matching surface of the base are controlled within 0.008mm, and the planeness is controlled within 0.005 mm.
10. The vertical machining center direct-connected spindle center water outlet structure as claimed in claim 9, wherein the coaxiality, cylindricity, verticality and parallelism at the matching surface of the rotary joint mounting seat are controlled within 0.008mm, and the flatness is controlled within 0.005 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609258.XU CN210280703U (en) | 2019-04-29 | 2019-04-29 | Vertical machining center direct-connected main shaft center goes out water structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609258.XU CN210280703U (en) | 2019-04-29 | 2019-04-29 | Vertical machining center direct-connected main shaft center goes out water structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210280703U true CN210280703U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920609258.XU Withdrawn - After Issue CN210280703U (en) | 2019-04-29 | 2019-04-29 | Vertical machining center direct-connected main shaft center goes out water structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210280703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153447A (en) * | 2019-04-29 | 2019-08-23 | 宁波海天精工股份有限公司 | A kind of direct-connected main-shaft core water flowing out structure of vertical machining centre |
-
2019
- 2019-04-29 CN CN201920609258.XU patent/CN210280703U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153447A (en) * | 2019-04-29 | 2019-08-23 | 宁波海天精工股份有限公司 | A kind of direct-connected main-shaft core water flowing out structure of vertical machining centre |
| CN110153447B (en) * | 2019-04-29 | 2024-02-02 | 宁波海天精工股份有限公司 | Vertical machining center directly links formula main shaft center play water structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240202 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240202 |