CN216938562U - Rotary connector suitable for deep hole machining of machine tool - Google Patents
Rotary connector suitable for deep hole machining of machine tool Download PDFInfo
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- CN216938562U CN216938562U CN202220781466.XU CN202220781466U CN216938562U CN 216938562 U CN216938562 U CN 216938562U CN 202220781466 U CN202220781466 U CN 202220781466U CN 216938562 U CN216938562 U CN 216938562U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a rotary connector suitable for deep hole machining of a machine tool, which comprises a shell and a central shaft, wherein the central shaft is inserted into the shell, one end of the central shaft is fixedly connected with a tool shank of a machine tool spindle, and the other end of the central shaft is inserted and installed with a jet-suction drill bit; according to the utility model, the first bearing and the second bearing are arranged at two ends inside the shell, the first bearing and the second bearing are sleeved on the outer surface of the central shaft, so that the shell and the central shaft can rotate relatively, the first sealing cover and the second sealing cover are sleeved at two ends of the outer surface of the shell, the centers of the first sealing cover and the second sealing cover are sleeved with the central shaft through the central hole, and the inner side surfaces of the first sealing cover and the second sealing cover are respectively provided with two sealing rings with diameters gradually increased from the central hole to the outside, so that the connection gap between the shell and the central shaft is sealed, and the sealing performance of the rotary connector is improved on the premise of ensuring the rotation.
Description
Technical Field
The utility model relates to the technical field of deep processing of machine tools, in particular to a rotary connector suitable for deep hole processing of a machine tool.
Background
The current common deep hole drilling system comprises a gun drilling system, a single tube drilling system and a jet-suction drilling system. The gun drill system belongs to a chip removal mode of internal cooling and external discharging, cutting fluid reaches the head of a drill bit for cooling through the inside of a hollow drill rod, and chips are discharged from the drill bit and a V-shaped groove outside the drill rod. The jet-suction drilling system belongs to the deep hole drilling and processing mode of inner chip removal, a drilling pipe of the jet-suction drilling system is of a double-layer structure, cutting fluid enters from an oil delivery port on a combiner, and enters forward into an annular space between an inner drilling rod and an outer drilling rod, reaches the head of a cutter to be cooled and lubricated, and pushes chips into an inner cavity of the inner drilling rod to be discharged backwards. The spray drill system has the advantages that: the sealing requirement is not high, the method is suitable for processing intermittent deep holes, the guide sleeve can not be attached to a workpiece during processing, and the processing efficiency is 4-6 times higher than that of a gun drill; the disadvantages are that: by adopting a double-layer pipeline, the drilling depth of the inner drill rod is limited below 1 meter because the inner drill rod cannot be provided with a support frame. The single-pipe drilling system belongs to an external cooling and internal chip removal mode, cutting fluid enters from the space between the outer wall of a drill rod and the machined surface of a workpiece through an oil pressure head, reaches the head of a cutter for cooling and lubricating, and pushes chips out from the interior of the drill rod. The single pipe drilling system has the advantages that: the drill rod has good strength and high processing efficiency which is 4 to 6 times higher than that of a gun drill, and the depth of a processing hole can reach dozens of meters; the disadvantages are that: when in machining, a guide sleeve of the oil pressure head must be tightly attached to a workpiece, the machining range is limited, a machine tool spindle needs to be specially made into a hollow cavity, and scrap iron is discharged from the center of the spindle. The three deep hole drilling systems have the advantages and disadvantages, and particularly, the jet-suction drilling system and the single-pipe drilling system are more popular with manufacturers.
The rotary connector for the deep processing system of the machine tool is used in the prior art, the two ends of the rotary connector often have inevitable gaps, the phenomenon of leakage of cutting fluid is easy to occur, and meanwhile, a drill bit fixed on the rotary connector is complex to disassemble and assemble, and is not beneficial to follow-up disassembly and replacement.
Therefore, the rotary connector suitable for deep hole machining of the machine tool has the advantages of being good in sealing performance and convenient for assembling and disassembling of the drill rod, and further solves the problems in the background art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a rotary connector suitable for deep hole machining of a machine tool.
In order to achieve the purpose, the utility model adopts the following technical scheme: the rotary connector suitable for deep hole machining of the machine tool comprises a shell and a central shaft, wherein a central shaft is arranged inside the shell in an inserting mode, a machine tool main shaft cutter handle is fixedly connected to one end of the central shaft, a spray suction drill bit is installed at the other end of the central shaft in an inserting mode, a plurality of positioning strips are arranged on the surface of the spray suction drill bit in a surrounding mode and are installed inside the central shaft in an embedding mode, a fixing ring is attached to the end face of the other end of the central shaft, the edge of the surface of the fixing ring is fixedly connected with the end face of the central shaft through flat head screws, a first bearing and a second bearing are installed at two ends inside the shell respectively and are sleeved with the outer surface of the central shaft respectively, a first sealing cover and a second sealing cover are sleeved at two ends of the outer surface of the shell respectively, and the middle positions of the first sealing cover and the second sealing cover are sleeved with the central shaft through central holes, and the inner side surfaces of the first sealing cover and the second sealing cover are respectively provided with a sealing ring, and the sealing rings are in contact with the end surface of the shell.
As a further description of the above technical solution: a plurality of mounting holes are formed in the edge of the fixing ring in a surrounding mode, flat head screws are inserted into the mounting holes, a plurality of yielding openings are formed in the inner ring of the fixing ring in a surrounding mode, and the yielding openings correspond to the positioning strips one to one.
As a further description of the above technical solution: the inner side surfaces of the first sealing cover and the second sealing cover are respectively provided with two sealing rings, and the diameters of the two sealing rings are sequentially increased from the center hole to the outside.
As a further description of the above technical solution: the first bearing and the second bearing are deep groove ball bearings, and the first bearing and the second bearing are installed at the edges of the two ends inside the shell.
As a further description of the above technical solution: the mounting groove is seted up to the one end that the center pin kept away from lathe main shaft handle of a knife, and the mounting groove medial surface corresponds the location strip and has seted up the groove of stepping down to the periphery of mounting groove corresponds the grub screw and has seted up the thread groove.
As a further description of the above technical solution: the sealing ring is made of rubber and is bonded with the inner side surface of the first sealing cover or the second sealing cover.
The utility model has the following beneficial effects:
in the utility model, a first bearing and a second bearing are arranged at two ends inside a shell, the first bearing and the second bearing are sleeved on the outer surface of a central shaft, so that the shell and the central shaft can rotate relatively, a first sealing cover and a second sealing cover are sleeved at two ends of the outer surface of the shell, the centers of the first sealing cover and the second sealing cover are sleeved with the central shaft through a central hole, two sealing rings with diameters gradually increased from the central hole to the outside are arranged on the inner side surfaces of the first sealing cover and the second sealing cover, the connection gap between the shell and the central shaft is sealed, the sealing performance of a rotary connector is improved on the premise of ensuring the rotation, meanwhile, a spray-suction drill bit is inserted into the central shaft, so that a plurality of positioning strips arranged around the surface of the spray-suction drill bit are all embedded into corresponding abdicating grooves arranged in the central shaft, and in the process, a fixing ring jointed with the end surface of the central shaft is rotated, the dislocation of a plurality of notches of stepping down of the inner ring of the fixing ring and a plurality of positioning strips on the surface of the spray suction drill bit is promoted, and the flat head screw is matched with the mounting hole of the fixing ring and fixedly connected with the end face of the central shaft, so that the efficient mounting of the spray suction drill bit is realized, and the subsequent quick disassembly is convenient.
Drawings
FIG. 1 is a schematic structural view of a rotary connector suitable for deep hole machining of a machine tool according to the present invention;
FIG. 2 is a schematic view of a first seal cap of the rotary connector for deep hole machining of a machine tool according to the present invention;
fig. 3 is a schematic structural diagram of a fixing ring of the rotary connector suitable for deep hole processing of a machine tool according to the utility model.
Illustration of the drawings:
1. a housing; 2. a central shaft; 3. a first bearing; 4. a first seal cover; 5. a fixing ring; 6. a flat head screw; 7. a jet suction drill bit; 8. a positioning bar; 9. a second bearing; 10. a second seal cap; 11. a tool shank of a machine tool spindle; 12. a seal ring; 13. a central bore; 14. mounting holes; 15. and (5) a gap is avoided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, a rotary connector suitable for deep hole machining of a machine tool is provided.
The utility model will be further described with reference to the accompanying drawings and specific embodiments, as shown in fig. 1 to 3, a rotary connector suitable for deep hole processing of a machine tool according to an embodiment of the utility model includes a housing 1 and a central shaft 2, the housing 1 is internally provided with the central shaft 2 in an inserting manner, one end of the central shaft 2 is fixedly connected with a tool holder 11 of a machine tool spindle, the other end of the central shaft 2 is inserted and installed with an ejector drill bit 7, the surface of the ejector drill bit 7 is surrounded by a plurality of positioning strips 8, the plurality of positioning strips 8 are all embedded and installed inside the central shaft 2, the end surface of the other end of the central shaft 2 is attached with a fixing ring 5, the edge of the surface of the fixing ring 5 is fixedly connected with the end surface of the central shaft 2 through a flat head screw 6, the first bearing 3 and the second bearing 9 are respectively installed at two ends inside the housing 1, and the first bearing 3 and the second bearing 9 are all sleeved and connected with the outer surface of the central shaft 2, the two ends of the outer surface of the shell 1 are respectively sleeved with a first sealing cover 4 and a second sealing cover 10, the middle positions of the first sealing cover 4 and the second sealing cover 10 are respectively sleeved with a central shaft 2 through a central hole 13, the inner side surfaces of the first sealing cover 4 and the second sealing cover 10 are respectively provided with a sealing ring 12, the sealing ring 12 is contacted with the end surface of the shell 1, the spray-suction drill bit 7 is inserted into the central shaft 2 to enable a plurality of positioning strips 8 arranged around the surface of the spray-suction drill bit 7 to be embedded into corresponding abdicating grooves arranged in the central shaft 2, in the process, a plurality of abdicating notches 15 on the inner ring of the fixing ring 5 and a plurality of positioning strips 8 on the surface of the spray-suction drill bit 7 are enabled to be dislocated by rotating the fixing ring 5 attached to the end surface of the central shaft 2, and the flat head screw 6 is matched to penetrate through a mounting hole 14 of the fixing ring 5 to be fixedly connected with the end surface of the central shaft 2, so as to realize the efficient mounting of the spray-suction drill bit 7, the quick disassembly is convenient to follow, meanwhile, the first bearing 3 and the second bearing 9 are installed at the two ends inside the shell 1, the first bearing 3 and the second bearing 9 are sleeved on the outer surface of the central shaft 2, the shell 1 and the central shaft 2 can rotate relatively, the first sealing cover 4 and the second sealing cover 10 are sleeved at the two ends of the outer surface of the shell 1, the centers of the first sealing cover 4 and the second sealing cover 10 are sleeved with the central shaft 2 through the central hole 13, two sealing rings 12 with diameters gradually increased from the central hole 13 to the outside are arranged on the inner side surfaces of the first sealing cover 4 and the second sealing cover 10, the connection gap between the shell 1 and the central shaft 2 is sealed, and the sealing performance of the rotary connector is improved on the premise of ensuring the rotation;
in one embodiment, a plurality of mounting holes 14 have been seted up around to solid fixed ring 5 edge a week, and all alternate in a plurality of mounting holes 14 and be connected with grub screw 6, solid fixed ring 5's inner circle is encircleed and is seted up a plurality of opening 15 of stepping down, and a plurality of opening 15 of stepping down and a plurality of location strip 8 one-to-one, through all alternate in a plurality of mounting holes 14 and connect grub screw 6, can increase the steadiness of solid fixed ring 5 installation, can step down for a plurality of location strip 8 through a plurality of opening 15 of stepping down, and be favorable to that follow-up dislocation formula is fixed.
In one embodiment, two sealing rings 12 are arranged on the inner side surfaces of the first sealing cover 4 and the second sealing cover 10, the diameters of the two sealing rings 12 are sequentially increased from the central hole 13 to the outside, and the sealing performance of the first sealing cover 4 and the second sealing cover 10 can be improved through the two sealing rings 12 with different diameters.
In one embodiment, the first bearing 3 and the second bearing 9 are deep groove ball bearings, and the first bearing 3 and the second bearing 9 are both installed at the edges of two ends inside the housing 1, and the rotation of the central shaft 2 is facilitated through the first bearing 3 and the second bearing 9.
In one embodiment, the end of the central shaft 2, which is far away from the tool spindle shank 11, is provided with a mounting groove, the inner side surface of the mounting groove is provided with a yielding groove corresponding to the positioning strip 8, the periphery of the mounting groove is provided with a thread groove corresponding to the flat head screw 6, the insertion type mounting of the spray suction drill bit 7 is facilitated through the mounting groove and the yielding groove, and the flat head screw 6 is facilitated through the thread groove.
In one embodiment, the sealing ring 12 is made of rubber, and the sealing ring 12 is bonded to the inner side surface of the first sealing cover 4 or the second sealing cover 10, so that the sealing performance of the connection between the housing 1 and the central shaft 2 can be improved by the sealing ring 12.
The working principle is as follows:
when the jet-suction drill bit 7 is fixed, the jet-suction drill bit 7 is inserted into the central shaft 2 to enable a plurality of positioning strips 8 arranged on the surface of the jet-suction drill bit 7 in a surrounding manner to be embedded into corresponding abdicating grooves arranged in the central shaft 2, in the process, a plurality of abdicating notches 15 on the inner ring of the fixing ring 5 and a plurality of positioning strips 8 on the surface of the jet-suction drill bit 7 are enabled to be dislocated by rotating the fixing ring 5 attached to the end surface of the central shaft 2, the jet-suction drill bit 7 is efficiently installed by matching with a flat head screw 6 which penetrates through a mounting hole 14 of the fixing ring 5 and is fixedly connected with the end surface of the central shaft 2, so that the subsequent quick disassembly is convenient, meanwhile, the first bearing 3 and the second bearing 9 are installed at two ends inside the shell 1, and the first bearing 3 and the second bearing 9 are both sleeved on the outer surface of the central shaft 2, so that the shell 1 and the central shaft 2 can relatively rotate, and establish first sealed cowling 4 and second sealed cowling 10 through the both ends cover at the shell 1 surface, and the center department of first sealed cowling 4 and second sealed cowling 10 all cup joints with center pin 2 through centre bore 13, and first sealed cowling 4 and second sealed cowling 10 medial surface all set up two diameters by centre bore 13 outside gradually enlarged sealing washer 12, realize the shutoff in shell 1 and 2 joint clearance of center pin, promote swivelling joint ware's sealing performance under the rotatable prerequisite of assurance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (6)
1. Rotary connector suitable for lathe BTA, including shell (1) and central axle (2), its characterized in that: the inner part of the shell (1) is provided with a central shaft (2) in an inserting mode, one end of the central shaft (2) is fixedly connected with a machine tool spindle cutter handle (11), the other end of the central shaft (2) is provided with a spray suction drill bit (7) in an inserting mode, the surface of the spray suction drill bit (7) is surrounded with a plurality of positioning strips (8), the positioning strips (8) are installed in the central shaft (2) in an embedding mode, a fixing ring (5) is attached to the end face of the other end of the central shaft (2), the edge of the surface of the fixing ring (5) is fixedly connected with the end face of the central shaft (2) through flat head screws (6), a first bearing (3) and a second bearing (9) are installed at two ends of the inner part of the shell (1) respectively, the first bearing (3) and the second bearing (9) are sleeved with the outer surface of the central shaft (2), a first sealing cover (4) and a second sealing cover (10) are sleeved at two ends of the outer surface of the shell (1) respectively, and the middle positions of the first sealing cover (4) and the second sealing cover (10) are sleeved with the central shaft (2) through a central hole (13), the inner side surfaces of the first sealing cover (4) and the second sealing cover (10) are provided with sealing rings (12), and the sealing rings (12) are contacted with the end surface of the shell (1).
2. A rotary connector suitable for deep hole machining of machine tools according to claim 1, wherein: the edge of the fixing ring (5) is surrounded by a circle to be provided with a plurality of mounting holes (14), flat head screws (6) are inserted into the mounting holes (14), the inner ring of the fixing ring (5) is surrounded by a plurality of yielding openings (15), and the yielding openings (15) correspond to the positioning strips (8) one to one.
3. A rotary connector suitable for deep hole machining of machine tools according to claim 1, wherein: the inner side surfaces of the first sealing cover (4) and the second sealing cover (10) are respectively provided with two sealing rings (12), and the diameters of the two sealing rings (12) are sequentially increased outwards through a central hole (13).
4. A rotary connector suitable for deep hole machining of machine tools according to claim 1, wherein: the first bearing (3) and the second bearing (9) are deep groove ball bearings, and the first bearing (3) and the second bearing (9) are installed at the edges of the two ends inside the shell (1).
5. A rotary connector suitable for deep hole machining of machine tools according to claim 1, wherein: the mounting groove is formed in one end, away from the machine tool spindle tool handle (11), of the central shaft (2), the inner side face of the mounting groove is provided with a yielding groove corresponding to the positioning strip (8), and the periphery of the mounting groove is provided with a thread groove corresponding to the flat head screw (6).
6. A rotary connector suitable for deep hole machining of machine tools according to claim 1, wherein: the sealing ring (12) is made of rubber, and the sealing ring (12) is bonded with the inner side surface of the first sealing cover (4) or the second sealing cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220781466.XU CN216938562U (en) | 2022-04-06 | 2022-04-06 | Rotary connector suitable for deep hole machining of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220781466.XU CN216938562U (en) | 2022-04-06 | 2022-04-06 | Rotary connector suitable for deep hole machining of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216938562U true CN216938562U (en) | 2022-07-12 |
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ID=82301230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220781466.XU Active CN216938562U (en) | 2022-04-06 | 2022-04-06 | Rotary connector suitable for deep hole machining of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216938562U (en) |
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2022
- 2022-04-06 CN CN202220781466.XU patent/CN216938562U/en active Active
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