CN109630793A - Hydraulic lining core integral piece and its processing method of bending - Google Patents
Hydraulic lining core integral piece and its processing method of bending Download PDFInfo
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- CN109630793A CN109630793A CN201910112233.3A CN201910112233A CN109630793A CN 109630793 A CN109630793 A CN 109630793A CN 201910112233 A CN201910112233 A CN 201910112233A CN 109630793 A CN109630793 A CN 109630793A
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- cylinder
- lining core
- bending
- slot
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- 238000005452 bending Methods 0.000 title claims abstract description 58
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 230000002441 reversible effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000007514 turning Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 2
- 230000004899 motility Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/062—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for use with attachments, e.g. reduction units, T-pieces, bends or the like
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Forging (AREA)
Abstract
The present invention discloses a kind of hydraulic lining core integral piece and its processing method of bending, including lining core of bending, first end successively forms sealing rotary table, connection cylinder and limit ladder from outside to inside, the big end of sealing rotary table connects with cylinder is connect, core print seal groove is offered on sealing rotary table side wall, is embedded with sealing ring in core print seal groove；It is external that attaching nut is sheathed on connecting column, and axially position part is provided between attaching nut and connection cylinder, axial movement of the axially position part for limited connection nut relative to connection cylinder；Core tail seal groove is offered on second end outer wall and withholds slot, it is provided with and withholds that slot is matched withholds protrusion on connection sleeve, after connection sleeve is withheld on the side wall for the second end for being arranged with hydralic hose, hydralic hose inner sidewall adapts to core tail seal groove flexible deformation, form the seal convexity being embedded in core tail seal groove, the service performance of the hydraulic lining core integral piece that bends can be improved, reduce production cost.
Description
Technical field
The present invention relates to hydraulic joint technical fields, more particularly to a kind of hydraulic lining core integral piece and its processing side of bending
Method.
Background technique
Hydraulic fitting is the component connected between high-pressure oil pipe and high-pressure oil pipe in hydraulic system, and therefore, hydraulic tube connects
Oil pressure is very big in head, and the hydraulic lining core integral piece that bends is commonly used in connecting the high-pressure oil pipe of different directions, due to oil liquid conveying side
To change, oil liquid to it is hydraulic bend lining core integral piece internal impact effect it is bigger, it is hydraulic bend lining core integral piece to its material,
Structural strength and leakproofness have strict demand.And existing hydraulic fitting, the poor sealing performance with high-pressure oil pipe junction,
And processing technology is complicated, difficulty of processing is big, and wastage of material is more, and forms step and vibration in its lining core of bending after hole machined
Line, surface quality is poor, increases oil temperature, and the lining core flat ratio that bends is not up to standard, unsightly and
Influence service performance.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic bend lining core integral piece and its processing methods, to solve above-mentioned existing skill
Art there are the problem of, improve the service performance of the hydraulic lining core integral piece that bends, reduce production cost.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of hydraulic lining core integral piece that bends, including lining core of bending, attaching nut and connection sleeve, described
Lining core of bending is the tube body of axial bore perforation, and the lining core of bending includes the first end successively to connect, middle part core and the
Two ends, first end successively form sealing rotary table, connection cylinder and limit ladder, the sealing rotary table from outside to inside
Big end connect with the connection cylinder, it is described sealing rotary table side wall on offer core print seal groove, the core print seal groove
Inside it is embedded with sealing ring；The attaching nut is sheathed on the connecting column in vitro and can rotate relative to the connection cylinder,
And axially position part is provided between the attaching nut and the connection cylinder, the axially position part is for limiting the company
Axial movement of the connected nut relative to the connection cylinder, the end face of the attaching nut and the end face of the limit ladder connect
It touches, is provided with screw thread on the inner sidewall of the attaching nut；Core tail seal groove is offered on the outer wall of second end and is withheld
Slot is provided on the connection sleeve and withholds that slot is matched to withhold protrusion with described, the connection sleeve is withheld and is being arranged with
After on the side wall of second end of hydralic hose, the inner sidewall of hydralic hose adapts to the core tail seal groove flexible deformation,
Form the seal convexity being embedded in the core tail seal groove.
Preferably, the axially position part includes a steel wire, offers on the external side wall of connecting column and wears steel wire inside groove,
It is offered on the inner sidewall of the attaching nut and wears steel wire outer groove and wear threaded hole of steel, it is described to wear threaded hole of steel and described wear steel wire outer groove
Connection, steel wire, which is worn threaded hole of steel described in and penetrated to described, to be worn steel wire outer groove and described wears in the limiting slot formed between steel wire inside groove
For limiting axial movement of the attaching nut relative to the connection cylinder.
Preferably, the core tail seal groove includes auxiliary seal groove and strong sealing slot, the auxiliary seal groove and described
The spacing that strong sealing slot is provided with the strong sealing slot of multiple and adjacent two is less than two adjacent auxiliary
The spacing of seal groove.
Preferably, the circular cone drift angle of the sealing rotary table is 24 °, and the sealing ring is O-ring seal, the lining core of bending
The inner hole at both ends is equipped with fillet, and the radius of the fillet is 5mm.
The present invention also provides a kind of processing methods of hydraulic lining core integral piece that bends as described above, comprising the following steps:
Step 1: cutting steel wool roundwood material obtains blank cylinder；
Step 2: pier nose is hot-forged to the blank cylinder using hot forged mould, blank cylinder one end diameter is made to become larger
Stub end is formed, the other end is core tail end；
Step 3: stub end described in turning obtains the sealing rotary table, the connection cylinder and the limit ladder, in institute
It states turning on the side wall of sealing rotary table and forms the core print seal groove；Core tail end described in turning and obtain the core tail seal groove and
It is described to withhold slot, the middle part core is obtained in the middle part of blank cylinder described in turning；
Step 4: along the blank cylinder axial drilling, straight lining core is obtained；
Step 5: the heating straight lining core, and described bend is obtained using the reversible deformation bending device straight lining core of bending
Lining core；
Step 6: the attaching nut and the connection sleeve are respectively fitted on the both ends of the lining core of bending.
Preferably, the reversible deformation bending device includes R mould, movable mold, stent and guided mode, and the R mould is cylindrical body,
The stent is fixedly connected on the side wall of the R mould, is opened on the side wall of the R mould and respectively on the side wall of the stent
Equipped with R model slot and stent type groove, the R model slot and the stent type groove connect for straight lining core described in support, institute
It states and offers movable mold type groove and guided mode type groove on movable mold and the guided mode respectively, the guided mode is driven by guided mode driving device
And it can be pressed in one end of the straight lining core, the movable mold is driven by movable mold driving device and can be by the straight lining core
The other end be pressed in the stent, rotate the R mould around the R mold shaft line, the movable mold and the stent
It follows the R mould to rotate and pushes the straight lining core bending deformation to obtain the lining core of bending by the limit ladder.
Preferably, the R model slot, the stent type groove, the movable mold type groove and the guided mode type groove are column
Face slot, and the cylinder radius of the R model slot, the stent type groove, the movable mold type groove and the middle part core is outer
Radius of circle is identical, and the guided mode type groove includes circumferential the first cylinder, the second cylinder and the third cylinder successively to connect, and described first
Cylinder is identical with the radius of the third cylinder and exradius that be equal to the middle part core, the radius of second cylinder
Less than the exradius of the middle part core, and the opening width of the guided mode type groove is less than the outer diameter of the middle part core.
Preferably, the guided mode type groove is axial symmetry type groove.
Preferably, it is provided with positioning protrusion in the stent, is provided in the movable mold and the positioning protrusion
The positioning groove matched.
It preferably, further include a limit insert, the limit insert is fixedly installed on the R mould described straight for limiting
The bending angle of lining core.
The present invention achieves following technical effect compared with the existing technology:
The hydraulic lining core integral piece that bends provided by the invention, is threadedly coupled by attaching nut with transit joint, and spiral shell is connected
Master tape dynamic sealing rotary table is squeezed into the inner conical surface of transit joint, in the male cone (strobilus masculinus) and transit joint using sealing rotary table
The angled sealing of cone-shaped, and the inner conical surface for the male cone (strobilus masculinus) and transit joint for sealing rotary table is additionally provided with sealing ring, realizes angle
The dual-seal of degree sealing and sealing ring sealing, effectively enhances the transit joint of hydraulic bend lining core integral piece and high-pressure oil pipe
The sealing performance of connection.Core tail seal groove is arranged in lining core core tail, and connection sleeve is withheld in the second end for being arranged with hydralic hose
After on the side wall of head, the inner sidewall of hydralic hose adapts to core tail seal groove flexible deformation, and formation is embedded in core tail seal groove
Seal convexity improves the connection sealing of hydraulic bend lining core integral piece and hydralic hose, can effectively resist hydraulic system
Pulse shock, ensure the compactness that last and sebific duct is withheld.
Hydraulic lining core integral piece processing method of bending provided by the invention, the processing is simple, and hot forging pier nose can effectively save original
Material, primary drilling i.e. molding obtain lining core inner hole, not will form step and chatter mark in lining core after hole machined, and surface quality is high, has
Effect reduces the oil temperature in the hydraulic system course of work, is bended using reversible deformation bending device, and lining core of bending flat ratio reduces, beautiful
And improve service performance.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 withholds the structure after on hydralic hose for the hydraulic lining core integral piece connection sleeve that bends in embodiment one and shows
It is intended to；
Fig. 2 is that the hydraulic structure that lining core integral piece connection sleeve is withheld before hydralic hose of bending in embodiment one is shown
It is intended to；
Fig. 3 is the structural schematic diagram of the lining core of bending of the hydraulic lining core integral piece that bends in embodiment one；
Fig. 4 is the structural schematic diagram of the attaching nut of the hydraulic lining core integral piece that bends in embodiment one；
Fig. 5 is to be hot-forged the blank cylinder body shape schematic diagram after pier nose in embodiment two to blank cylinder using hot forged mould；
Fig. 6 is the status diagram before bending straight lining core in embodiment two using reversible deformation bending device；
Fig. 7 is the status diagram after bending straight lining core in embodiment two using reversible deformation bending device；
Fig. 8 is the cross-sectional view of the guided mode of reversible deformation bending device；
In figure: 1- bends lining core；The first end 11-；Core in the middle part of 12-；The second end 13-；131- auxiliary seal groove；
132- strong sealing slot；14- seals rotary table；15- connection cylinder；151- wears steel wire inside groove；16- core print seal groove；17- limit rank
Ladder；18- withholds slot；19- fillet；2- attaching nut；21- wears steel wire outer groove；22- wears threaded hole of steel；3- connection sleeve；31- is withheld
Protrusion；41- stub end；42- core tail end；5-R mould；6- movable mold；7- stent；8- guided mode；9- limits insert；The hydraulic glue of 10-
Pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of hydraulic bend lining core integral piece and its processing methods, to solve above-mentioned existing skill
Art there are the problem of, improve the service performance of the hydraulic lining core integral piece that bends, reduce production cost.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in figures 1-4, the present embodiment provides a kind of hydraulic lining core integral pieces that bends, including lining core 1 of bending, connection spiral shell
Mother 2 and connection sleeve 3, lining core of bending 1 be inner hole perforation tube body, lining core of bending 1 include successively connect the first end 11, in
Portion's core 12 and the second end 13, the first end 11 successively form sealing rotary table 14, connection cylinder 15 and limit from outside to inside
The big end of ladder 17, sealing rotary table 14 connects with cylinder 15 is connect, and seals and offers core print seal groove 16 on the side wall of rotary table 14,
Sealing ring is embedded in core print seal groove 16；Attaching nut 2 is sheathed on outside connection cylinder 15 and can be relative to connection cylinder 15
Rotation, and axially position part is provided between attaching nut 2 and connection cylinder 15, axially position part is used for limited connection nut 2
Relative to the axial movement of connection cylinder 15, the end face of attaching nut 2 is contacted with the end face of limit ladder 17, attaching nut's 2
Screw thread is provided on inner sidewall；Core tail seal groove is offered on second end, 13 outer wall and withholds slot 18, core tail seal groove and is buckled
Indent 18 is annular groove, connect sleeve 3 on be provided with and withhold slot 18 it is matched withhold protrusion 31, will connection sleeve 3 withhold
After on the side wall for the second end 13 for being arranged with hydralic hose, the inner sidewall of hydralic hose adapts to core tail seal groove elasticity and becomes
Shape forms the seal convexity in a ring being embedded in core tail seal groove.
Limit ladder 17, connection cylinder 15, middle part core 12 outer diameter be respectively 42mm, 33mm, 30mm, lining core inner hole is straight
Diameter is 19mm.
The hydraulic lining core integral piece that bends provided in this embodiment, is threadedly coupled by attaching nut 2 with transit joint, connection
Nut 2 is squeezed into dynamic sealing rotary table 14 to the inner conical surface of transit joint, male cone (strobilus masculinus) and transition using sealing rotary table 14
The inner conical surface of connector forms angle seals, and the inner conical surface for the male cone (strobilus masculinus) and transit joint for sealing rotary table 14 is additionally provided with sealing
Circle realizes the dual-seal of angle seals and sealing ring sealing, effectively enhances hydraulic lining core integral piece and the high pressure oil of bending
The sealing performance of the transit joint connection of pipe.Lining core core tail be arranged core tail seal groove, will connection sleeve 3 withhold be arranged with it is hydraulic
After on the side wall of second end 13 of sebific duct, the inner sidewall of hydralic hose adapts to core tail seal groove flexible deformation, and formation is embedded in
Seal convexity in core tail seal groove improves the connection sealing of hydraulic bend lining core integral piece and hydralic hose, Ke Yiyou
Effect resists the pulse shock of hydraulic system, ensures the compactness that last and sebific duct is withheld.
Axially position part includes a steel wire, connects to offer on 15 lateral wall of cylinder and wears steel wire inside groove 151, attaching nut 2
Inner sidewall on offer to wear and steel wire outer groove 21 and wear threaded hole of steel 22, wear threaded hole of steel 22 and be connected to steel wire outer groove 21 is worn, steel wire oneself
Threaded hole of steel 22 is worn to penetrate to wearing steel wire outer groove 21 and wear in the limiting slot that is formed between steel wire inside groove 151 for limited connection nut
2 axial movement relative to connection cylinder 15, this structure setting simplify the structure of the hydraulic lining core integral piece that bends.
In order to further enhance the connection sealing of hydraulic bend lining core integral piece and hydralic hose, core tail seal groove includes
Auxiliary seal groove 131 and strong sealing slot 132, auxiliary seal groove 131 and strong sealing slot 132 are provided with multiple and adjacent
Two strong sealing slots 132 spacing be less than two adjacent auxiliary seal grooves 131 spacing.
The circular cone drift angle for sealing rotary table 14 is 24 °, and sealing ring is O-ring seal.
The inner hole at 1 both ends of lining core of bending is equipped with fillet 19, and the stream of hydraulic oil can be effectively improved in hydraulic system
Dynamic speed is reduced the resistance generated due to step and played very so as to reduce the raising of oil temperature to integrated hydraulic system
Good facilitation, specifically, the radius of fillet 19 is 5mm.
Embodiment two
The present embodiment provides a kind of processing methods of the hydraulic lining core integral piece that bends in embodiment one, including following step
It is rapid:
Step 1: cutting steel wool roundwood material obtains blank cylinder；Specifically, use diameter for45# steel wool circle
Material, the blank cylinder for being about 2880g at 353mm long (length of straight lining core is 350mm), weight by sawing machine material cutting；
Step 2: pier nose is hot-forged to blank cylinder using hot forged mould, as shown in figure 5, becoming blank cylinder one end diameter
Big to form stub end 41, the other end is core tail end 42；The blank cylinder being hot-forged is transmitted in insulation barrel by conveyer belt, is kept the temperature
Bucket is handled using Q235 material using aluminising, and insulation barrel surrounding and bung have installed heat preservation asbestos additional, it is therefore an objective to play to hot forging
The insulation effect of blank avoids the too fast generation internal stress of cooling velocity, softens blank, is convenient for following process.
Step 3: since the machining allowance of blank after hot forging heading is fewer, so that it may direct finishing processing；Firstly, folder
It holds position turning stub end 41 among blank and obtains sealing rotary table 14, connection cylinder 15 and limit ladder 17, in sealing rotary table 14
Side wall on turning form core print seal groove 16, and the angle of falling R of R5 fallen to end face；Then, turning core in position among clamping blank
Tail end 42, turning core tail end 42 simultaneously obtain core tail seal groove and withholding slot 18, and process end face and fall the angle of falling R of R5；Finally, clamping
Stub end 41, lining core tail portion are held out against in the middle part of turning blank cylinder with top, reach intermediate position and do not connect under knife, a knife, avoid
The generation of intermediate step obtains middle part core；
Step 4: along blank cylinder axial drilling, straight lining core is obtained；Lining core inner hole is being stood upside down deeply using cold gun drill in high pressure
Lining core inner hole is disposably processed on hole machine tool, drill gun is put into the spitting drill bushing of drill gun lathe in installation of standing upside down, core tail end 42, on
Withstanding tight block hydraulic compression is punched with drill gun in face, and drill gun throws into along spitting drill sets of holes, using high-pressure oil pump by the iron filings in drill gun
Discharge downwards, and the iron filings being discharged are in clastic, avoid iron filings and can not arrange damage surface to be machined；
Step 5: heating straight lining core, and obtains lining core 1 of bending using reversible deformation bending device straight lining core of bending；
Step 6: attaching nut 2 and connection sleeve 3 are respectively fitted to bend on the both ends of lining core 1；By pneumatically wearing steel
Silk nut assembly machine improves assembly efficiency and assembling quality, adds to nipples are worn and overlength lining core carries out assembly processing
Organic glass semiclosed protection not only ensure that personal safety, but also be convenient for assembly manipulation；It is buckled using the fragrant treasured NC201S20 type of Finland
Press is hydraulic to overlength to hydraulic buckle machine to bend lining core 1 and hydraulic integral sleeve carries out withholding assembly, and buckle machine is micro- using PLC
Computer control, withholding precision can achieve ± 0.02, and withholding size has very big guarantee.
Hydraulic lining core integral piece processing method of bending provided by the invention, the processing is simple, and hot forging pier nose can effectively save original
Material, primary drilling i.e. molding obtain lining core inner hole, not will form step and chatter mark in lining core after hole machined, and surface quality is high, has
Effect reduces the oil temperature in the hydraulic system course of work, is bended using reversible deformation bending device, and lining core of bending flat ratio reduces, beautiful
And improve service performance.
The present invention use diameter for45# steel wool roundwood material, by sawing machine material cutting at 381mm long, weight is about
For 2880g, the mode by being hot-forged heading forms lining core blank, can be than original same money product materials weight savings
1530g, the 8 hours one day rates of output can improve 38%, save raw material, production cost is effectively reduced.
With drill gun punching cost than first feather plucking hole again 1.3 yuan of cost savings of bore hole/only, since drill gun punching is primary
Property get through, centre without step, finish can achieve Ra3.2 μm, effectively improve the hydraulic lining core integral piece total quality that bends.
As can be seen from figures 6 to 8, reversible deformation bending device includes R mould 5, movable mold 6, stent 7 and guided mode 8, and R mould 5 is cylinder
Body, stent 7 are fixedly connected on the side wall of R mould 5, offer on the side wall of R mould 5 and respectively R model on the side wall of stent 7
Slot and stent type groove, R model slot and stent type groove connect for the straight lining core of support, open up respectively on movable mold 6 and guided mode 8
There are movable mold type groove and guided mode type groove, guided mode 8 is driven by guided mode driving device and can be pressed in one end of straight lining core, and makes to lead
The inner sidewall of model slot is contacted with the lateral wall of straight lining core, and movable mold 6 is driven by movable mold driving device, so that straight lining core is another
One end is pressed in stent by movable mold, and lateral wall of the inner sidewall of movable mold type groove and stent type groove with straight lining core connects
Touching；Specifically, guided mode 8 slides into locking bit behind the one end for being pressed in straight lining core by one guided mode sliding rail of guided mode driving device drives edge
It sets, movable mold 6 locks after sliding into the other end for being pressed in straight lining core by one movable mold sliding rail of movable mold driving device drives edge
Position；Later, control R mould is rotated around R mold shaft line, and movable mold 6 and stent 7 follow R mould 6 to rotate and push away by limiting ladder 17
It moves straight lining core bending deformation and obtains lining core 1 of bending.
Reversible deformation bending device uses the hot-die Steel material H13 processing for being hot-forged processing, avoids because product temperature is excessively high
Unfavorable annealing effect is played to mold, to guarantee the processing quality of die life and the hydraulic lining core integral piece that bends.
R model slot, stent type groove, movable mold type groove and guided mode type groove are cylinder slot, and R model slot, fixed model
Slot, the cylinder radius of movable mold type groove are identical as the exradius of middle part core 12, and guided mode type groove includes circumferentially successively connecting
First cylinder, the second cylinder and third cylinder, the first cylinder is identical with the radius of third cylinder and is equal to middle part core 12
Exradius is 15mm, the exradius that the radius of the second cylinder is less than middle part core 12 is 12.5mm, and guided mode type groove is opened
The outer diameter that mouth width degree is less than middle part core 12 is 29.4mm.
The guided mode type groove shape of reversible deformation bending device use reversible deformation double R design, after bending the flat ratio of lining core from
1.3 originally are promoted within 1.1, are improved the aesthetics of lining core and are used new energy.
Guided mode type groove is the axial symmetry type groove about guided mode axisymmetrical.
It is provided with positioning protrusion in stent, is provided in movable mold and the matched positioning groove of positioning protrusion.
Reversible deformation bending device further includes a limit insert 9, and limit insert 9 is fixedly installed on R mould 5 for limiting straight lining
The bending angle of core.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of hydraulic lining core integral piece that bends, it is characterised in that: described including lining core of bending, attaching nut and connection sleeve
Lining core of bending is the tube body of axial bore perforation, and the lining core of bending includes the first end successively to connect, middle part core and the
Two ends, first end successively form sealing rotary table, connection cylinder and limit ladder, the sealing rotary table from outside to inside
Big end connect with the connection cylinder, it is described sealing rotary table side wall on offer core print seal groove, the core print seal groove
Inside it is embedded with sealing ring；The attaching nut is sheathed on the connecting column in vitro and can rotate relative to the connection cylinder,
And axially position part is provided between the attaching nut and the connection cylinder, the axially position part is for limiting the company
Axial movement of the connected nut relative to the connection cylinder, the end face of the attaching nut and the end face of the limit ladder connect
It touches, is provided with screw thread on the inner sidewall of the attaching nut；Core tail seal groove is offered on the outer wall of second end and is withheld
Slot is provided on the connection sleeve and withholds that slot is matched to withhold protrusion with described, the connection sleeve is withheld and is being arranged with
After on the side wall of second end of hydralic hose, the inner sidewall of hydralic hose adapts to the core tail seal groove flexible deformation,
Form the seal convexity being embedded in the core tail seal groove.
2. the hydraulic lining core integral piece that bends according to claim 1, it is characterised in that: the axially position part includes a steel
Thread, it is offered on the external side wall of connecting column and wears steel wire inside groove, offered and worn outside steel wire on the inner sidewall of the attaching nut
Slot and threaded hole of steel is worn, the threaded hole of steel of wearing is connected to the steel wire outer groove of wearing, and steel wire, which is worn threaded hole of steel described in oneself and penetrated to described, to be worn
Steel wire outer groove and described wear are used to limit the attaching nut relative to the connection in the limiting slot formed between steel wire inside groove
The axial movement of cylinder.
3. the hydraulic lining core integral piece that bends according to claim 1, it is characterised in that: the core tail seal groove includes auxiliary
Seal groove and strong sealing slot, the auxiliary seal groove and the strong sealing slot are provided with two multiple and adjacent institutes
The spacing for stating strong sealing slot is less than the spacing of two adjacent auxiliary seal grooves.
4. the hydraulic lining core integral piece that bends according to claim 1, it is characterised in that: the circular cone drift angle of the sealing rotary table
It is 24 °, the sealing ring is O-ring seal, and the inner hole for bending lining core both ends is equipped with fillet, and the radius of the fillet is
5mm。
5. a kind of processing method of the hydraulic lining core integral piece that bends according to any one of claims 1 to 4, it is characterised in that:
The following steps are included:
Step 1: cutting steel wool roundwood material obtains blank cylinder；
Step 2: pier nose is hot-forged to the blank cylinder using hot forged mould, blank cylinder one end diameter is made to become larger to be formed
Stub end, the other end are core tail end；
Step 3: stub end described in turning obtains the sealing rotary table, the connection cylinder and the limit ladder, described close
It seals turning on the side wall of rotary table and forms the core print seal groove；Core tail end described in turning simultaneously obtains the core tail seal groove and described
Slot is withheld, obtains the middle part core in the middle part of blank cylinder described in turning；
Step 4: along the blank cylinder axial drilling, straight lining core is obtained；
Step 5: the heating straight lining core, and the lining core of bending is obtained using the reversible deformation bending device straight lining core of bending；
Step 6: the attaching nut and the connection sleeve are respectively fitted on the both ends of the lining core of bending.
6. processing method according to claim 5, it is characterised in that: the reversible deformation bending device includes R mould, activity
Mould, stent and guided mode, the R mould are cylindrical body, and the stent is fixedly connected on the side wall of the R mould, the R mould
R model slot and stent type groove, the R model slot and the fixation are offered on side wall and respectively on the side wall of the stent
Model slot connects for straight lining core described in support, offers movable mold type groove and guided mode respectively on the movable mold and the guided mode
Type groove, the guided mode are driven by guided mode driving device and can be pressed in one end of the straight lining core, and the movable mold is by activity
Mould driving device drives and the other end of the straight lining core can be pressed in the stent, makes the R mould around the R mould
Axis rotation, the movable mold and the stent, which follow the R mould to rotate and pass through the limit ladder, pushes the straight lining
Chip bending deforms to obtain the lining core of bending.
7. processing method according to claim 6, it is characterised in that: the R model slot, the stent type groove, described
Movable mold type groove and the guided mode type groove are cylinder slot, and the R model slot, the stent type groove, the motility model
The cylinder radius of slot is identical as the exradius of the middle part core, and the guided mode type groove includes circumferential the first column successively to connect
Face, the second cylinder and third cylinder, first cylinder is identical with the radius of the third cylinder and is equal to the middle part core
The exradius of body, the radius of second cylinder be less than the exradius of the middle part core, and the guided mode type groove is opened
Mouth width degree is less than the outer diameter of the middle part core.
8. processing method according to claim 7, it is characterised in that: the guided mode type groove is axial symmetry type groove.
9. processing method according to claim 6, it is characterised in that: positioning protrusion is provided in the stent, it is described
It is provided in movable mold and the matched positioning groove of the positioning protrusion.
10. processing method according to claim 6, it is characterised in that: further include a limit insert, the limit insert is solid
Surely it is set on the R mould for limiting the bending angle of the straight lining core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910112233.3A CN109630793B (en) | 2019-02-13 | 2019-02-13 | Hydraulic bending lining core integrated piece and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910112233.3A CN109630793B (en) | 2019-02-13 | 2019-02-13 | Hydraulic bending lining core integrated piece and processing method thereof |
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| CN109630793A true CN109630793A (en) | 2019-04-16 |
| CN109630793B CN109630793B (en) | 2023-11-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704695A (en) * | 2022-02-28 | 2022-07-05 | 芜湖骏航机电科技有限公司 | Rolling connection type lip-shaped sealing joint |
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|---|---|
| CN109630793B (en) | 2023-11-28 |
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