CN108907776A - A kind of hydraulic knife handle of combined connecting - Google Patents
A kind of hydraulic knife handle of combined connecting Download PDFInfo
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- CN108907776A CN108907776A CN201810929072.2A CN201810929072A CN108907776A CN 108907776 A CN108907776 A CN 108907776A CN 201810929072 A CN201810929072 A CN 201810929072A CN 108907776 A CN108907776 A CN 108907776A
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- main body
- inner ring
- elastic thin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
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Abstract
The present invention relates to a kind of hydraulic knife handles of combined connecting to be provided with hydraulic oil oil pocket including holder main body and the elastic thin-wall inner ring being set to inside holder main body between holder main body and elastic thin-wall inner ring；Elastic thin-wall inner ring is set as the tubbiness thin-wall construction of both ends thickness intermediate thin, two end side outer circle of elastic thin-wall inner ring and holder main body inner hole branch face contact.The present invention is fixed holder main body and elastic thin-wall inner ring with the connection type that interference fit connection combines by soldering connection, reduce influence of the stress to holder main body and elastic thin-wall inner ring switching performance, prevent holder main body under high pressure conditions from tearing with elastic thin-wall inner ring junction, to improve the service life of hydraulic knife handle；At the same time, structure improvement is carried out by the structure to piston rod and piston sleeve, realizes to the Fast-Maintenance of piston sleeve, improves the overall tightness of hydraulic path, improve the integral strength of hydraulic knife handle.
Description
Technical field
The present invention relates to NC cutting tool production technical field, in particular to a kind of hydraulic knife handle of combined connecting.
Background technique
Relative to the rigid knife handle of the diversified forms such as spring pocket cartridge type, hot charging formula, side-strengthened, conical surface needle roller compression type, liquid
Push type broach handle can substantially reduce the damage of cutter when knife handle shakes with the fixed characteristic of its flexibility, in modern numerical control
It is used widely on process equipment.
The working principle of hydraulic knife handle is：By the way that oil pocket is arranged inside hydraulic knife handle, oil pocket on holder main body by having
Cooperate on the cavity and liner of oil groove with reeded outer circle and formed, holder main body is equipped with oil circuit and communicates with oil groove, oil circuit
The other end be equipped with pressure bolt, filled with hydraulic oil in oil circuit and oil groove, pressed bolt by rotation, push hydraulic oil, make oil
Hydraulic oil in chamber compresses liner, and the elastic hole wall of liner is deformed under the action of hydraulic pressure, cutter is fixedly clamped,
Complete holding action.
It was verified that there is also many defects in use for existing hydraulic knife handle, it mainly include following side
Face：1. under high pressure swelling state, the oil in oil pocket is situated between using the holder main body and liner of the connection of single sealing ring sealing means
Matter can be leaked from the cavity of holder main body and the contact surface of liner outer circle, limit knife handle under limit high pressure conditions
It uses；2. using the holder main body and liner of welding manner connection, high to the quality requirement of welding under normal conditions, bottom hole position
The operating space set is narrow, and welding difficulty is larger, and soldering reliability, which is unable to get, to be effectively ensured, and generalling use is hard solder
Mode, seperated replacement and maintenance can not be carried out after welding to holder main body and liner, improve use cost；3. existing liquid
After long-term CONTACT WITH FRICTION, internal clearance and smoothness can become the piston rod and piston sleeve of its mounted inside of push type broach handle
Change, affects the leakproofness of entire hydraulic path, reduce the bearing capacity of hydraulic knife handle.
Based on the above analysis, technological improvement is carried out to existing hydraulic knife handle, a kind of hydraulic knife handle of combined connecting is designed, mentions
The bearing capacity of high hydraulic knife handle connects the connection type combined for holder main body and bullet with interference fit by soldering connection
Property thin-walled inner ring fix, reduce influence of the stress to holder main body and elastic thin-wall inner ring switching performance, prevent under high pressure conditions
Holder main body is torn with elastic thin-wall inner ring junction, to improve the service life of hydraulic knife handle；At the same time, pass through
Structure improvement is carried out to the structure of piston rod and piston sleeve, realizes to the Fast-Maintenance of piston sleeve, improves hydraulic path
Overall tightness improves the integral strength of hydraulic knife handle.
Summary of the invention
The object of the present invention is to be directed to existing hydraulic knife handle, it is hydraulic to design a kind of combined connecting
Knife handle improves the bearing capacity of hydraulic knife handle, connects the connection type combined for knife handle with interference fit by soldering connection
Main body is fixed with elastic thin-wall inner ring, is reduced influence of the stress to holder main body and elastic thin-wall inner ring switching performance, is prevented height
Holder main body is torn with elastic thin-wall inner ring junction under pressure condition, to improve the service life of hydraulic knife handle；With this
Meanwhile structure improvement is carried out by the structure to piston rod and piston sleeve, it realizes the Fast-Maintenance to piston sleeve, improves liquid
The overall tightness for pressing access, improves the integral strength of hydraulic knife handle.
The invention is realized by the following technical scheme：
A kind of hydraulic knife handle of combined connecting, structure include holder main body (1) and the bullet for being set to holder main body (1) inside
Property thin-walled inner ring (2), is provided with hydraulic oil oil pocket (100) between holder main body (1) and elastic thin-wall inner ring (2)；The knife handle
Main body (1) is additionally provided with hydraulic oil note drain oil (103), pressurization hole (102), and for hydraulic oil to be infused drain oil (103)
And the hydraulic oil deflector hole (101) that pressurization hole (102) is connected to hydraulic oil oil pocket (100)；Setting at the top of the pressurization hole (102)
Hydraulic channel；The hydraulic channel assembles mutually matched piston rod (11), piston bush (9), and is used for regulating piston bar
(11) the pressure screw (14) slid；
Described hydraulic oil note drain oil (103) outboard end is provided with steel-ball type plug (7) and for steel-ball type plug
(7) carry out squeezing the lock-screw (6) of locking；
One end on the holder main body (1) for connecting with elastic thin-wall inner ring (2) is hydraulic knife handle head (1a), knife
One end opposite with hydraulic knife handle head (1a) is hydraulic knife handle tail portion (1b) in handle main body (1)；
It is characterized in that：
The elastic thin-wall inner ring (2) is set as the tubbiness thin-wall construction of both ends thickness intermediate thin, elastic thin-wall inner ring (2) two
End side outer circle and holder main body (1) inner hole are interference fitted；
Level-one weld-ring slot (201), second level weld-ring slot (202) and three-level weld-ring are provided on the elastic thin-wall inner ring (2)
Slot (203) assembles level-one solder ring (3) on level-one weld-ring slot (201), and second level solder ring is assembled on second level weld-ring slot (202)
(4), three-level weld-ring slot (203) assembly three-level solder ring (5)；
The region that elastic thin-wall inner ring (2) outer peripheral surface is located between level-one solder ring (3) and second level solder ring (4) is
Level-one clearance fit face (205), elastic thin-wall inner ring (2) outer peripheral surface are located at the setting of the region on the right side of second level solder ring (4) second level
Clearance fit face (206), second level clearance fit face (206) right side are radial interference fit face (204)；
The position setting tip-clearance that elastic thin-wall inner ring (2) periphery is located at three-level solder ring (5) lower right side cooperates
End contact face (207) are arranged in face (208), tip-clearance mating surface (208) bottom side；
Match with holder main body (1) axial gap in the level-one clearance fit face (205) of elastic thin-wall inner ring (2) outer peripheral surface
It closes；
Match with holder main body (1) axial gap in the second level clearance fit face (206) of elastic thin-wall inner ring (2) outer peripheral surface
It closes；
Elastic thin-wall inner ring (2) periphery be located at the tip-clearance mating surface (208) of three-level solder ring (5) lower right side with
The cooperation of holder main body (1) axial gap；
The diameter radial interference fit face (204) of elastic thin-wall inner ring (2) outer peripheral surface and holder main body (1) inner hole interference
Cooperation；
The end contact face (207) and holder main body (1) inner hole branch face contact of elastic thin-wall inner ring (2) periphery.
Further, the piston bush (9) is set as detachable structure.
Further, piston bush (9) outboard end is provided with the stop screw (8) for being limited to piston bush (9),
Pressure screw (14) of the assembly for regulating piston bar (11) sliding on the outside of stop screw (8).
Further, piston bush (9) bottom assembly bottom end O-ring seal (10).
Further, annular retaining ring (12) are set on the inside of the piston bush (9), it is embedded on the inside of annular retaining ring (12) to be equipped with
Inner end O-ring seal (13).
Further, straight trough (2040) are evenly arranged with week on the outside of diameter radial interference fit face (204).
Further, second level clearance fit face (206) are connected to hydraulic by uniformly distributed several straight troughs (2040)
Oil pocket (100).Further, the level-one solder ring (3), second level solder ring (4) and three-level solder ring (5) are tin-lead solder
Structure.
Further, level-one clearance fit face (205), second level clearance fit face (206) and tip-clearance mating surface
(208) fit clearance is 0.01mm~0.05mm.
The present invention provides a kind of hydraulic knife handles of combined connecting, and compared with prior art, beneficial effect is：
1, the hydraulic knife handle of combined connecting that the present invention designs, elastic thin-wall inner ring (2) are set as both ends thickness intermediate thin
Tubbiness thin-wall construction, (2) two end side outer circle of elastic thin-wall inner ring and holder main body (1) inner hole branch face contact；Elastic thin-wall inner ring
(2) level-one weld-ring slot (201), second level weld-ring slot (202) and three-level weld-ring slot (203) are provided on, on level-one weld-ring slot (201)
It assembles level-one solder ring (3), assembles second level solder ring (4) on second level weld-ring slot (202), assemble three on three-level weld-ring slot (203)
Grade solder ring (5)；Elastic thin-wall inner ring (2) periphery be located at the tip-clearance mating surface (208) of three-level solder ring (5) lower right side with
The cooperation of holder main body (1) axial gap；Elastic thin-wall inner ring (2) outer peripheral surface is located at level-one solder ring (3) and second level solder ring (4)
Between region be level-one clearance fit face (205), elastic thin-wall inner ring (2) outer peripheral surface is located on the right side of second level solder ring (4)
Second level clearance fit face (206) are arranged in region, are on the right side of second level clearance fit face (206) radial interference fit face (204)；It is above-mentioned
Design, by the interference fit of (2) two end side outer circle of elastic thin-wall inner ring and holder main body (1) inner hole, is transmitted by frictional force
Torque improves the integral strength of hydraulic knife handle；By level-one solder ring (3) and second level solder ring (4) to sealing fluid pressure oil into
The sealing of row left end carries out right end sealing to sealing fluid pressure oil by three-level solder ring (5), hydraulic oil is avoided to exosmose；In Welder
Skill require at a temperature of, level-one solder ring (3), second level solder ring (4) and three-level solder ring (5) fusing after under capillary effect into
Enter corresponding level-one clearance fit face (205), second level clearance fit face (206) and tip-clearance mating surface (208), completes to correspond to
The welded connecting at position realizes hydraulic oil seal, connects the connection type that combines for knife with interference fit using soldering connection
Handle main body is fixed with elastic thin-wall inner ring, is reduced influence of the stress to holder main body and elastic thin-wall inner ring switching performance, is prevented
Holder main body is torn with elastic thin-wall inner ring junction under high pressure conditions, to improve the service life of hydraulic knife handle.
2, the hydraulic knife handle of combined connecting that the present invention designs, piston bush (9) are set as detachable structure, such design side
Formula is convenient for the fast quick-detach of piston bush (9), realizes quick polishing and maintenance to piston bush (9), can effectively ensure that work
The smoothness of plug sleeve (9) inner sidewall and the contact site of piston rod (11), raising piston bush (9) cooperate close with piston rod (11)
Feng Xing improves the integral strength of hydraulic knife handle.
3, the combined connecting hydraulic knife handle that the present invention designs is evenly arranged in week on the outside of radial interference fit face (204)
Straight trough (2040), the straight trough (2040) of design are discharged and are generated convenient for gas during the brazing process capillary effect, it is fine to be conducive to solder
Filling gap, improve welding efficiency, guarantee welding quality, at the same time, by be arranged straight trough (2040) also further avoid
Slipping phenomenon occurs in torque transmittance process, improves torque-transfer capability.
4, the hydraulic knife handle of combined connecting that the present invention designs, passes through the mistake of elastic thin-wall inner ring (2) and holder main body (1)
It is full of cooperation, ensure that position precision of the elastic thin-wall inner ring (2) in holder main body (1), under normal conditions elastic thin-wall inner ring
(2) inner hole is finished after welding to guarantee that inner hole is beated, and general gap fiting mode will lead in elastic thin-wall
It is even to enclose (2) swelling region wall unevenness, and then causes circumferencial direction deformation after pressurization uneven, eventually leads to by folder folder object bounce
It is bad.5, the hydraulic knife handle of combined connecting that the present invention designs, level-one solder ring (3), second level solder ring (4) and three-level solder ring
(5) it is tin-lead solder structure, belongs to slicken solder structure, is convenient for the fractionation of holder main body (1) and elastic thin-wall inner ring (2), has
It is replaced and is safeguarded conducive to holder main body (1), elastic thin-wall inner ring (2) and related accessory, reduce such hydraulic knife handle
Use cost.
6, the hydraulic knife handle of combined connecting that the present invention designs, elastic thin-wall inner ring (2) outer peripheral surface are located at level-one solder ring
(3) region between second level solder ring (4) is level-one clearance fit face (205), and elastic thin-wall inner ring (2) outer peripheral surface is located at two
Second level clearance fit face (206) are arranged in region on the right side of grade solder ring (4)；Elastic thin-wall inner ring (2) periphery is located at three-level solder
Tip-clearance mating surface (208) are arranged in the position of ring (5) lower right side；Above-mentioned design, in holder main body (1) and elastic thin-wall inner ring
(2) after assembling, between the position corresponding with holder main body (1) inner hole of level-one clearance fit face (205), second level clearance fit face
(206) between position corresponding with holder main body (1) inner hole and tip-clearance mating surface (208) connects with holder main body (1)
Between fill tin-lead solder, fill the sealing realized after tin-lead solder to hydraulic oil, while facilitating torque transmitting.
7, the hydraulic knife handle of combined connecting that the present invention designs, tip-clearance mating surface (208) bottom side are arranged end and contact
Face (207)；It is on the right side of second level clearance fit face (206) radial interference fit face (204)；In holder main body (1) and elastic thin-wall
After inner ring (2) assembly, pass through the interference fit of corresponding position on tip-clearance mating surface (208) and holder main body (1), Yi Jijing
To interference fit face (204) and the obverse interference fit of holder main body (1) inner hole, help to transmit torque, meanwhile, make to be brazed
Region prevents brazing area when pressurization from tearing, ensure that overall performance and the use of hydraulic knife handle far from maximum stress point
Service life.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram of the hydraulic knife handle of the present invention.
Fig. 2 is the main structure cross-sectional view of the hydraulic knife handle of the present invention.
Fig. 3 be in the present invention in Fig. 2 A-A to structural schematic diagram.
Fig. 4 is the structural schematic diagram one of elastic thin-wall inner ring in the present invention.
Fig. 5 is the structural schematic diagram two of elastic thin-wall inner ring in the present invention.
Fig. 6 is the radial cross section of the hydraulic knife handle of the present invention.
Fig. 7 is the enlarged structure schematic diagram of straight trough in the present invention.
Fig. 8 is the joint structural schematic diagram in second level clearance fit face and radial interference fit face in the present invention.
Specific embodiment
The present invention is described further refering to attached drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8.
The present invention relates to a kind of hydraulic knife handle of combined connecting, structure includes holder main body (1) and is set to holder main body
(1) internal elastic thin-wall inner ring (2), is provided with hydraulic oil oil pocket between holder main body (1) and elastic thin-wall inner ring (2)
(100)；The holder main body (1) is additionally provided with hydraulic oil note drain oil (103), pressurization hole (102), and is used for hydraulic oil
The hydraulic oil deflector hole (101) that note drain oil (103) and pressurization hole (102) are connected to hydraulic oil oil pocket (100)；The pressurization hole
(102) hydraulic channel is arranged in top；The hydraulic channel assembles mutually matched piston rod (11), piston bush (9), and is used for
The pressure screw (14) of regulating piston bar (11) sliding；
Described hydraulic oil note drain oil (103) outboard end is provided with steel-ball type plug (7) and for steel-ball type plug
(7) carry out squeezing the lock-screw (6) of locking；
One end on the holder main body (1) for connecting with elastic thin-wall inner ring (2) is hydraulic knife handle head (1a), knife
One end opposite with hydraulic knife handle head (1a) is hydraulic knife handle tail portion (1b) in handle main body (1)；
It is characterized in that：
The elastic thin-wall inner ring (2) is set as the tubbiness thin-wall construction of both ends thickness intermediate thin, elastic thin-wall inner ring (2) two
End side outer circle and holder main body (1) inner hole branch face contact；
Level-one weld-ring slot (201), second level weld-ring slot (202) and three-level weld-ring are provided on the elastic thin-wall inner ring (2)
Slot (203) assembles level-one solder ring (3) on level-one weld-ring slot (201), and second level solder ring is assembled on second level weld-ring slot (202)
(4), three-level weld-ring slot (203) assembly three-level solder ring (5)；
The region that elastic thin-wall inner ring (2) outer peripheral surface is located between level-one solder ring (3) and second level solder ring (4) is
Level-one clearance fit face (205), elastic thin-wall inner ring (2) outer peripheral surface are located at the setting of the region on the right side of second level solder ring (4) second level
Clearance fit face (206), second level clearance fit face (206) right side are radial interference fit face (204)；
The position setting tip-clearance that elastic thin-wall inner ring (2) periphery is located at three-level solder ring (5) lower right side cooperates
End contact face (207) are arranged in face (208), tip-clearance mating surface (208) bottom side；
Match with holder main body (1) axial gap in the level-one clearance fit face (205) of elastic thin-wall inner ring (2) outer peripheral surface
It closes；
Match with holder main body (1) axial gap in the second level clearance fit face (206) of elastic thin-wall inner ring (2) outer peripheral surface
It closes；
Elastic thin-wall inner ring (2) periphery be located at the tip-clearance mating surface (208) of three-level solder ring (5) lower right side with
The cooperation of holder main body (1) axial gap；
The radial interference fit face (204) of elastic thin-wall inner ring (2) outer peripheral surface connects with holder main body (1) inner hole branch face
Touching；
The end contact face (207) and holder main body (1) inner hole branch face contact of elastic thin-wall inner ring (2) periphery.
As an improvement, the piston bush (9) is set as detachable structure.
As an improvement, piston bush (9) outboard end is provided with the stop screw for being limited to piston bush (9)
(8), pressure screw (14) of the assembly for regulating piston bar (11) sliding on the outside of stop screw (8).
As an improvement, piston bush (9) bottom assembly bottom end O-ring seal (10).
As an improvement, annular retaining ring (12) are set on the inside of the piston bush (9), embedded assembly on the inside of annular retaining ring (12)
There are inner end O-ring seal (13).
As an improvement, being evenly arranged with straight trough (2040) week on the outside of the radial interference fit face (204).
As an improvement, second level clearance fit face (206) is connected to liquid by uniformly distributed several straight troughs (2040)
Pressure oil oil pocket (100).
As an improvement, the second level weld-ring slot (202) is connected to second level clearance fit by 3 uniformly distributed half slots
Face (206), the half slot in axial direction extend to second level clearance fit face (206).
As an improvement, the level-one solder ring (3), second level solder ring (4) and three-level solder ring (5) are tin-lead solder knot
Structure.
As an improvement, level-one clearance fit face (205), second level clearance fit face (206) and tip-clearance mating surface
(208) fit clearance is 0.01mm~0.05mm.
Compared with prior art, the hydraulic knife handle of combined connecting that the present invention designs, elastic thin-wall inner ring (2) are set as two
Hold the tubbiness thin-wall construction of thick intermediate thin, (2) two end side outer circle of elastic thin-wall inner ring and holder main body (1) inner hole branch face contact；
Level-one weld-ring slot (201), second level weld-ring slot (202) and three-level weld-ring slot (203), level-one are provided on elastic thin-wall inner ring (2)
Level-one solder ring (3) are assembled on weld-ring slot (201), assemble second level solder ring (4) on second level weld-ring slot (202), three-level weld-ring slot
(203) three-level solder ring (5) are assembled on；Elastic thin-wall inner ring (2) periphery is located at the tip-clearance of three-level solder ring (5) lower right side
Mating surface (208) and holder main body (1) axial gap cooperate；Elastic thin-wall inner ring (2) outer peripheral surface be located at level-one solder ring (3) with
Region between second level solder ring (4) is level-one clearance fit face (205), and elastic thin-wall inner ring (2) outer peripheral surface is located at second level weldering
Expect that second level clearance fit face (206) are arranged in the region on the right side of ring (4), matches on the right side of second level clearance fit face (206) for radial interference
Conjunction face (204)；Above-mentioned design, by the interference fit of (2) two end side outer circle of elastic thin-wall inner ring and holder main body (1) inner hole,
Torque is transmitted by frictional force, improves the integral strength of hydraulic knife handle；Pass through level-one solder ring (3) and second level solder ring (4)
Left end sealing is carried out to sealing fluid pressure oil, right end sealing is carried out to sealing fluid pressure oil by three-level solder ring (5), avoids hydraulic oil
Extravasation；Welding process requirement at a temperature of, level-one solder ring (3), second level solder ring (4) and three-level solder ring (5) fusing after
Enter corresponding level-one clearance fit face (205), second level clearance fit face (206) and tip-clearance mating surface under capillary effect
(208), the welded connecting of corresponding position is completed, realizes hydraulic oil seal, is combined using soldering connection with interference fit connection
Connection type holder main body and elastic thin-wall inner ring are fixed, reduce stress to holder main body and elastic thin-wall inner ring connectivity
The influence of energy, prevents holder main body under high pressure conditions from tearing with elastic thin-wall inner ring junction, to improve hydraulic knife handle
Service life.
The hydraulic knife handle of the combined connecting that the present invention designs, piston bush (9) are set as detachable structure, such design side
Formula is convenient for the fast quick-detach of piston bush (9), realizes quick polishing and maintenance to piston bush (9), can effectively ensure that work
The smoothness of plug sleeve (9) inner sidewall and the contact site of piston rod (11), raising piston bush (9) cooperate close with piston rod (11)
Feng Xing improves the integral strength of hydraulic knife handle.
The combined connecting that the present invention designs hydraulic knife handle is evenly arranged with directly in week on the outside of radial interference fit face (204)
Slot (2040), the straight trough (2040) of design are discharged during the brazing process convenient for gas, improve welding efficiency, guarantee welding quality, with this
Meanwhile by the way that straight trough (2040) are arranged also further avoiding that slipping phenomenon occurs in torque transmittance process, it improves torque and transmits energy
Power.
The hydraulic knife handle of the combined connecting that the present invention designs, second level weld-ring slot (202) pass through 3 uniformly distributed half slots
It is connected to second level clearance fit face (206), half slot in axial direction extends to second level clearance fit face (206), and increased half
Circular groove is conducive to tin-lead solder and is adsorbed to gap location well, improves welding quality.
The hydraulic knife handle of the combined connecting that the present invention designs, level-one solder ring (3), second level solder ring (4) and three-level solder
Ring (5) is tin-lead solder structure, belongs to slicken solder structure, is convenient for the fractionation of holder main body (1) and elastic thin-wall inner ring (2),
Be conducive to that holder main body (1), elastic thin-wall inner ring (2) and related accessory are replaced and safeguarded, reduce such hydraulic knife
The use cost of handle.
The hydraulic knife handle of the combined connecting that the present invention designs, elastic thin-wall inner ring (2) outer peripheral surface are located at level-one solder ring (3)
Region between second level solder ring (4) is level-one clearance fit face (205), and elastic thin-wall inner ring (2) outer peripheral surface is located at second level
Second level clearance fit face (206) are arranged in region on the right side of solder ring (4)；Elastic thin-wall inner ring (2) periphery is located at three-level solder ring
(5) tip-clearance mating surface (208) are arranged in the position of lower right side；Above-mentioned design, in holder main body (1) and elastic thin-wall inner ring
(2) after assembling, between the position corresponding with holder main body (1) inner hole of level-one clearance fit face (205), second level clearance fit face
(206) between position corresponding with holder main body (1) inner hole and tip-clearance mating surface (208) connects with holder main body (1)
Between fill tin-lead solder, fill the sealing realized after tin-lead solder to hydraulic oil, while facilitating torque transmitting.
End contact face is arranged in the hydraulic knife handle of the combined connecting that the present invention designs, tip-clearance mating surface (208) bottom side
(207)；It is on the right side of second level clearance fit face (206) radial interference fit face (204)；In holder main body (1) and elastic thin-wall
After enclosing (2) assembly, pass through the interference fit of corresponding position on tip-clearance mating surface (208) and holder main body (1), and radial direction
Interference fit face (204) and the obverse interference fit of holder main body (1) inner hole help to transmit torque, meanwhile, make brazing area
Domain prevents brazing area when pressurization from tearing far from maximum stress point, ensure that the overall performance of hydraulic knife handle and uses the longevity
Life.
The present invention assembles level-one solder ring (3) on level-one weld-ring slot (201), second level weld-ring in processing and assembling process
Second level solder ring (4) are assembled on slot (202), three-level weld-ring slot (203) assembles three-level solder ring (5)；In a cold or frozen state, it completes
The assembly of holder main body (1) and elastic thin-wall inner ring (2) assembly, then carries out thermal weld, in heating process, in capillarity
Under, between the position corresponding with holder main body (1) inner hole of level-one clearance fit face (205), second level clearance fit face (206) and knife
Between the corresponding position of handle main body (1) inner hole and between tip-clearance mating surface (208) and holder main body (1) joint
Tin-lead solder is filled, tin-lead welding is completed；
In the specific application process, tool assembly is on the inside of elastic thin-wall inner ring (2) close to hydraulic knife handle head (1a) one
End, due to being filled with hydraulic oil in hydraulic oil oil pocket (100), by tightening pressure screw (14), can compression piston bar (11),
Hydraulic oil in further compression hydraulic oil oil pocket (100) forms interior pressure, elastic thin-wall inner ring to elastic thin-wall inner ring (2)
(2) the clamping cutter on the inside of elastic thin-wall inner ring (2) is clamped after being denaturalized；When carrying out cutter disassembly, pressed by loosening
Screw (14), piston rod (11) move up, and elastic thin-wall inner ring (2) restores to the original state, due to level-one solder ring (3), second level solder ring
(4) and three-level solder ring (5) is all made of tin-lead solder, is soft solder, convenient for melting again, and will not to holder main body (1) and
Elastic thin-wall inner ring (2) structure impacts, easy to disassemble.
As described above, the present invention can be applied.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of hydraulic knife handle of combined connecting, structure includes holder main body (1) and the elasticity for being set to holder main body (1) inside
Thin-walled inner ring (2) is provided with hydraulic oil oil pocket (100) between holder main body (1) and elastic thin-wall inner ring (2)；The knife handle master
Body (1) be additionally provided with hydraulic oil note drain oil (103), pressurization hole (102), and for by hydraulic oil note drain oil (103) and
The hydraulic oil deflector hole (101) that pressurization hole (102) is connected to hydraulic oil oil pocket (100)；Liquid is set at the top of the pressurization hole (102)
Pressure passageway；The hydraulic channel assembles mutually matched piston rod (11), piston bush (9), and is used for regulating piston bar (11)
The pressure screw (14) of sliding；
Hydraulic oil note drain oil (103) outboard end be provided with steel-ball type plug (7) and for steel-ball type plug (7) into
Row squeezes the lock-screw (6) of locking；
One end on the holder main body (1) for connecting with elastic thin-wall inner ring (2) is hydraulic knife handle head (1a), knife handle master
One end opposite with hydraulic knife handle head (1a) is hydraulic knife handle tail portion (1b) on body (1)；
It is characterized in that：
The elastic thin-wall inner ring (2) is set as the tubbiness thin-wall construction of both ends thickness intermediate thin, (2) two end side of elastic thin-wall inner ring
Outer circle and holder main body (1) inner hole branch face contact；
Level-one weld-ring slot (201), second level weld-ring slot (202) and three-level weld-ring slot are provided on the elastic thin-wall inner ring (2)
(203), level-one solder ring (3) are assembled on level-one weld-ring slot (201), assemble second level solder ring (4) on second level weld-ring slot (202),
Three-level weld-ring slot (203) assembles three-level solder ring (5)；
It is level-one that elastic thin-wall inner ring (2) outer peripheral surface, which is located at the region between level-one solder ring (3) and second level solder ring (4),
Clearance fit face (205), elastic thin-wall inner ring (2) outer peripheral surface are located at the setting second level gap of the region on the right side of second level solder ring (4)
Mating surface (206), second level clearance fit face (206) right side are radial interference fit face (204)；
Elastic thin-wall inner ring (2) periphery is located at the position setting tip-clearance mating surface of three-level solder ring (5) lower right side
(208), tip-clearance mating surface (208) bottom side setting end contact face (207)；
The level-one clearance fit face (205) of elastic thin-wall inner ring (2) outer peripheral surface and holder main body (1) axial gap cooperate；
The second level clearance fit face (206) of elastic thin-wall inner ring (2) outer peripheral surface and holder main body (1) axial gap cooperate；
Elastic thin-wall inner ring (2) periphery is located at the tip-clearance mating surface (208) and knife handle of three-level solder ring (5) lower right side
The cooperation of main body (1) axial gap；
The radial interference fit face (204) of elastic thin-wall inner ring (2) outer peripheral surface and holder main body (1) inner hole branch face contact；
The end contact face (207) and holder main body (1) inner hole branch face contact of elastic thin-wall inner ring (2) periphery.
2. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that the piston bush (9) is set as just
Tear formula structure open.
3. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that piston bush (9) outboard end is set
It is equipped with the stop screw (8) for being limited to piston bush (9), assembly is used for regulating piston bar on the outside of stop screw (8)
(11) the pressure screw (14) slid.
4. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that piston bush (9) the bottom assembly
Bottom end O-ring seal (10).
5. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that setting on the inside of the piston bush (9)
Annular retaining ring (12), annular retaining ring (12) inside is embedded to be equipped with inner end O-ring seal (13).
6. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that the radial interference fit face
(204) outside is evenly arranged with straight trough (2040) week.
7. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that level-one clearance fit face
(205), the fit clearance of second level clearance fit face (206) and tip-clearance mating surface (208) is 0.01mm~0.05mm.
8. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that the second level weld-ring slot (202) is logical
It crosses 3 uniformly distributed half slots and is connected to second level clearance fit face (206), the half slot in axial direction extends to second level
Clearance fit face (206).
9. the hydraulic knife handle of combined connecting according to claim 1, which is characterized in that the level-one solder ring (3), second level
Solder ring (4) and three-level solder ring (5) are tin-lead solder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929072.2A CN108907776B (en) | 2018-08-15 | 2018-08-15 | Composite connection type hydraulic knife handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929072.2A CN108907776B (en) | 2018-08-15 | 2018-08-15 | Composite connection type hydraulic knife handle |
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| Publication Number | Publication Date |
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| CN108907776A true CN108907776A (en) | 2018-11-30 |
| CN108907776B CN108907776B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929072.2A Active CN108907776B (en) | 2018-08-15 | 2018-08-15 | Composite connection type hydraulic knife handle |
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| CN110900228A (en) * | 2019-12-12 | 2020-03-24 | 四川沛菲克机器人科技有限公司 | Hydraulic expansion clamping device and use method thereof for machining center tool magazine |
| CN111730388A (en) * | 2020-06-19 | 2020-10-02 | 广州市昊志机电股份有限公司 | Hydraulic tool handle and machine tool |
| CN115179217A (en) * | 2022-08-17 | 2022-10-14 | 成都成林数控刀具股份有限公司 | Hydraulic clamp |
| CN115229540A (en) * | 2022-08-17 | 2022-10-25 | 成都成林数控刀具股份有限公司 | Hydraulic tool shank |
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|---|---|
| CN108907776B (en) | 2023-10-17 |
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Address after: 610000 No. 7, Rongtai Avenue, Chengdu cross strait science and Technology Industrial Development Park, Wenjiang District, Chengdu, Sichuan Applicant after: Chengdu Chenglin CNC Tool Co.,Ltd. Address before: 610000 No. 7, Rongtai Avenue, Chengdu cross strait science and Technology Industrial Development Park, Wenjiang District, Chengdu, Sichuan Applicant before: CHENGDU CHENGLIN NUMERICAL CONTROL CUTTING TOOLS CO.,LTD. |
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