CN106903178B - A kind of extruder with Combined extrusion axis - Google Patents
A kind of extruder with Combined extrusion axis Download PDFInfo
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- CN106903178B CN106903178B CN201710087250.7A CN201710087250A CN106903178B CN 106903178 B CN106903178 B CN 106903178B CN 201710087250 A CN201710087250 A CN 201710087250A CN 106903178 B CN106903178 B CN 106903178B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/20—Making uncoated products by backward extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/04—Mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C26/00—Rams or plungers; Discs therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
Abstract
The present invention provides a kind of extruder with Combined extrusion axis; comprising: be installed on the workbench of bottom of the frame; the workbench is fixedly arranged at the upper side the extruding shaft body with hollow structure; upper and lower displacement along the vertical direction is set in the hollow structure for squeezing shaft body, is used for the molding plug of extrusion billet; the upper end for squeezing shaft body is fixedly connected with the dummy block with the hollow duct to match with the plug outer diameter, and the top of the dummy block is arranged for cooperating the molding dynamic model mechanism of the plug extrusion billet.Extruder with Combined extrusion axis of the invention, can effectively improve operating efficiency, reduce cost.
Description
Technical field
The present invention relates to large-calibre seamless tubing production technical fields, have Combined extrusion more particularly, to one kind
The extruder of axis.
Background technique
Extruder is to realize the main equipment of extruding metal processing using plastic deformation pressure forming.Its main spy
Point is to be processed and formed at one time metal stock, and working process speed is fast, reliable in quality.
Heavy caliber pipe extruder is divided into long-range extruder and two kinds of short distance extruder.Short distance extruder refers to master cylinder row
Journey is shorter than conventional master cylinder stroke, can reduce empty stroke time, improve efficiency.The extruding axis of long-range extruder position opposite with plug
Fixation is set, therefore, the space for accommodating blank filling could be generated by needing to squeeze axis and the mobile longer stroke of plug in feeding.
On the whole, long-range extruder is more complicated than the design of short distance extruder, and occupied space is more, and cost is also higher.
In extrusion process heavy caliber ferrous metal thick-wall seamless material, because its extruding force is very big, it usually needs heavy
Extrusion equipment.The cost of design and manufacture for heavy extrusion equipment, long-range extruder will be apparently higher than short distance extruder.Together
When, since the extrusion cylinder tonnage of heavy type extruder equipment is larger, the difficulty in such a way that extrusion cylinder deviates extruding center line feeding
It is larger, therefore, in extrusion process heavy caliber ferrous metal thick-wall seamless material, mainly use extrusion cylinder, extruding axis, plug can
The short distance extruder structure of coincidence.
In the extrusion process of heavy caliber ferrous metal thick-wall seamless material short distance extruder, squeezes axis and plug is to squeeze work
Core mold required for skill, fatigue life, economy and structural compactness have very high requirement.Traditional extruding axis master
To use monolithic construction, that is, the internal diameter for squeezing axis is directly matched with the diameter of plug, squeezes the inner face and plug of axis
Outer end face close contact but can opposite sliding.This structure is simple to manufacture, but is needed when processing the steel pipe of different-diameter size
Integral replacing is wanted to squeeze axis and plug, higher cost.
When diameter of mandrel, which is less than, squeezes axis internal diameter, it is unable to complete steel tube extrusion technique, reason mainly has two o'clock.First,
When diameter of mandrel, which is less than, squeezes axis internal diameter, gap can be generated between plug and extruding axis inner hole, the blank of high temperature when squeezing
Flash can be formed along the gap reflux.It excessively will increase the abrasion that plug and extruding axis inner hole generate when flash is formed, simultaneously
Also extruding force can be made to increase.Meanwhile terminate in extruding, plug backhaul when, the presence of flash causes reverberation matrix method excessive or even can not
Realize backhaul.Second, an important parameter for squeezing tube quality quality is the eccentric degree of steel pipe, when steel pipe eccentric degree mistake
It can only be to scrap processing when big.For the eccentric degree for reducing steel pipe, plug need to have good rigidity.Since plug only has lower end
It is fixed, it is equivalent to the fixed suspended wall girder construction in one end.It when plug and squeezes between axis inner hole there are when certain interval, then plug
Fixed point will be transferred to the lower end of plug from the upper end position contacted with extruding axis, in this way, making the equivalent suspended wall beam length of plug
Degree increases, corresponding Stiffness, is unfavorable for the eccentric degree control to steel pipe is squeezed.
In addition, the most important structural parameters of steel pipe include pipe diameter and outer diameter, wherein outer diameter of steel pipes size is by extrusion die
Internal diameter determines；Pipe diameter size is then determined by diameter of mandrel.When squeezing the steel pipe of different size, need that correspondence is installed
Different extrusion dies and plug, therefore, it is also desirable to the extruding axis that corresponding replacement matches with plug.
It follows that traditional monoblock type, which squeezes axle construction, has the shortcomings that two is big: 1, when squeezing the steel pipe of different inner diameters
Need the plug using corresponding different-diameter.Corresponding different inner diameters are just needed replacing to match with the plug of different-diameter
Squeeze axis.Therefore, to squeeze the extruding axis that the steel pipe of different size just needs standing different size, meanwhile, it is big that these squeeze axis
Part-time will be in idle state again, cause a degree of waste.In addition, excessive monoblock type squeezes the maintenance of axis, dimension
Shield, update are also required to a large amount of cost, so that die cost is excessively high；2, axis and plug are squeezed in use, can deposited
It is also higher in the cost of a degree of abrasion, integral replacing.
Summary of the invention
The present invention, which provides, a kind of to be overcome the above problem or at least is partially solved capable of effectively improving not for the above problem
With internal diameter tubing processing efficiency, reduce the extruder with Combined extrusion axis of cost.
According to an aspect of the present invention, a kind of extruder with Combined extrusion axis is provided comprising: it is installed on machine
The workbench of frame bottom, the workbench are fixedly arranged at the upper side the extruding shaft body with hollow structure, the extruding shaft body
Hollow structure in setting along the vertical direction upper and lower displacement, be used for the molding plug of extrusion billet, it is described squeeze shaft body it is upper
End is fixedly connected with the dummy block with the hollow duct to match with the diameter of mandrel, and the top of the dummy block, which is arranged, to be used
In the cooperation molding dynamic model mechanism of plug extrusion billet.
On the basis of above scheme, the diameter for squeezing axis hollow structure is greater than the diameter of the plug.
On the basis of above scheme, the outer diameter of the dummy block is greater than the outer diameter for squeezing shaft body, and described crowded
The diameter in the hollow duct of pressure pad is less than the diameter for squeezing shaft body hollow structure.
On the basis of above scheme, the extruding shaft body includes top cylinder and bottom frustum, the bottom frustum
Outside be arranged and be screwed on the workbench and there is the fixed ring that matches with the bottom frustum outer end face.
On the basis of above scheme, the lower end of the plug is spirally connected along the vertical direction through the bottom of the frame and work
The driving device of platform.
On the basis of above scheme, the driving device includes the plunger case installed along the vertical direction and along the plunger
The plunger of cylinder upper and lower displacement and the plug bottom end that is spirally connected.
On the basis of above scheme, the dynamic model mechanism include driven by master cylinder and bottom offset in the vertical direction it is dynamic
Beam, the lower end surface of dynamic beam position corresponding with the plug are provided with extrusion die.
On the basis of above scheme, the upper end of the master cylinder is screwed onto the top of the rack, the lower end of the master cylinder
It is screwed onto the upside of the dynamic beam, the downside setting of the dynamic beam is used to support the dynamic beam and cooperates with the master cylinder and drive
Move the kicker cylinder of the dynamic beam upper and lower displacement.
On the basis of above scheme, the dynamic model mechanism further includes for driving extrusion cylinder bottom offset in the vertical direction
Extrusion cylinder supporting mechanism, the extrusion cylinder supporting mechanism includes symmetrically arranged two extrusions, and the extrusion includes solid
Due to supporting in the rack close to the mode locking of the dynamic beam, mode locking cylinder body is installed along vertical position in the mode locking support,
Mode locking sliding block is bolted on the mode locking cylinder plug of the mode locking cylinder body.
On the basis of above scheme, the mode locking sliding block includes radian arc identical with the extrusion cylinder outer end face radian
Shape piece and arc-shaped protrusions, the diameter of the inner face of the arc-like sheet are greater than the outer diameter of the extrusion cylinder, and the arc-shaped protrusions are vertical
It is set to the lower end of the arc-like sheet and extends inwardly, the diameter of the inner face of the arc-shaped protrusions is less than the extrusion cylinder
Outer diameter.
A kind of extruder with Combined extrusion axis that the application proposes, its advantages are mainly as follows:
(1) it using extruding shaft body and dummy block combination, then is matched with plug, there is extrusion process in difference
When the tubing of diameter, it is only necessary to replace dummy block and plug, squeeze shaft body without replacing, it is difficult not only to reduce replacement operation
Degree effectively reduces cost moreover, the reserve level for squeezing shaft body can be reduced, and enhancing squeezes the applicability of axis, in addition,
In the fabricated structure, for guarantee plug rigidity, it is only necessary to the cooperation of dummy block and plug, and squeeze shaft body and plug without
It directly contacts, the friction squeezed between shaft body and plug and its abrasion loss generated can be effectively reduced；
(2) diameter for squeezing the hollow structure of axis is greater than the diameter of plug, convenient for squeezing the core that different-diameter is arranged in axis
Stick；
(3) the dynamic model mechanism set in use, can increase extruding force；
(4) lower end for squeezing shaft body is set as frustum structure, can increase the stability for squeezing shaft body, meanwhile,
It can be preferably fixed on the worktable convenient for being matched with fixed ring；
(5) extrusion cylinder supporting mechanism is using arc-like sheet identical with extrusion cylinder outer end face radian and arc-shaped protrusions as a result, protecting
While demonstrate,proving extrusion cylinder upper and lower displacement, enhance its applicability to extrusion cylinder specification.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to a kind of extruder with Combined extrusion axis of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
It is shown in Figure 1, a kind of extruder with Combined extrusion axis comprising rack 1, rack 1 pass through rack branch
Support 11 is fixed on ground.Rack 1 further includes lower arched girder 12, cambered beam 13 and column 14, and at least four, column 14.Lower arched girder
12, steel wire winding is respectively adopted in cambered beam 13 or the mode that is spirally connected is fixed on the lower end and upper end of column 14.The column 14 of rack 1
It is screwed onto rack support 11, rack support 11 is fixed on ground.
Rack 1 further includes lower template beam 15 and upper bearing beam 16.Lower template beam 15 is screwed onto the upside of lower arched girder 12, upper 16 spiral shell of bearing beam
It connects in the downside of cambered beam 13.It is correspondingly arranged lower template beam 15 and upper bearing beam 16 in the corresponding position of lower arched girder 12 and cambered beam 13,
Convenient for the installation of other component in rack 1.
The upside installment work platform 2 of lower template beam 15, workbench 2 are screwed on lower template beam 15, are bolted on the upside of workbench 2 crowded
Last item ontology 3.Squeezing shaft body 3 has hollow structure, which is hollow cylinder structure, on the top for squeezing shaft body 3
End is provided with dummy block 5, and dummy block 5 has the structure in hollow duct.Shaft body 3 and dummy block 5 are squeezed by the way of being spirally connected
Fixed, bolt setting is corresponding on dummy block 5 to be fastened with nut on squeezing shaft body 3.
Plug 4 is provided in the hollow structure for squeezing shaft body 3, plug 4 is for extrusion billet to complete extrusion forming
Movement.Plug 4 is squeeze can be along the axial direction bottom offset in the vertical direction for squeezing shaft body 3 in shaft body 3.Also,
Plug 4 and the hollow duct of dummy block 5 match, make plug 4 in the vertical direction bottom offset when, can pass through dummy block 5 and
The offset of horizontal direction will not occur.
In the prior art, the maximum upper end i.e. blank for being plug is influenced through being squeezed on the eccentric degree for squeezing steel pipe
For the deformed area of steel pipe, therefore, the rigidity of plug to be improved should allow the fixed point of plug close to the upper end of plug as far as possible.When
There are when certain interval between plug and extruding axis inner hole, the fixed point of plug will be shifted from the upper end position contacted with extruding axis
To the lower end of plug, so increase the equivalent suspended wall beam length of plug, corresponding Stiffness is unfavorable for extruding steel
The eccentric degree of pipe controls.
And in the present invention, using squeeze shaft body 3 with extruding 3 upper end of shaft body dummy block 5 combine, dummy block 5 again with
The mode that plug 4 matches not only reduces the equivalent cantilever of plug 4, improves its rigidity, additionally it is possible to effectively reduce or avoid
Plug 4 and the abrasion loss for squeezing the friction and friction generation between shaft body 3, extend the service life for squeezing shaft body 3.
In such a way that extruding shaft body 3 is combined with the dummy block 5 for being set to extruding 3 top of shaft body, for not
With the plug 4 of diameter, corresponding dummy block 5 is set, different plugs 4 is made to be corresponding with the dummy block 5 to match.In dummy block
5 top is provided with dynamic model mechanism 6, and dynamic model mechanism 6 is for cooperating plug 4 to complete extrusion billet molding.
When squeezing the tubing of different inner diameters, does not need integral replacing and squeeze shaft body 3, it is only necessary to replace 5 He of dummy block
Plug 4, and squeezing shaft body 3 being capable of Reusability.Axis is squeezed compared to the monoblock type in existing method, using extruding shaft body
3 modes combined with dummy block 5 can reduce operation difficulty, improve replacement operation efficiency.Also, dummy block 5 is fixed on extruding
The top of shaft body 3, and matched with plug 4, fully ensure that the rigidity of plug 4.
In addition, dummy block 5 is in contact in the working condition of high temperature and pressure with blank during extrusion billet, it is easy to produce
Raw abrasion.When 5 abrasion loss of dummy block it is excessive and can not normal use when, only need to change dummy block 5, without replace squeeze
Shaft body 3.And monoblock type in existing method squeezes axis, it is excessive in the vertex abrasion amount that monoblock type squeezes axis and can not normally make
Used time, it is necessary to which integral replacing squeezes axis.Therefore, using the dummy block 5 for squeezing shaft body 3 with being set to extruding 3 top of shaft body
Combined mode can effectively reduce cost.
The diameter for squeezing the hollow structure of shaft body 3 is greater than the diameter of plug 4.Due to the hollow duct of dummy block 5 and core
Stick 4 matches, make plug 4 in the vertical direction bottom offset when, dummy block 5 can play the role of guiding, guarantee plug 4 perpendicular
Histogram to movement the offset of horizontal direction will not occur.And the diameter for squeezing 3 hollow structure of shaft body is greater than the straight of plug 4
Diameter, the plug 4 with different-diameter can be arranged by making to squeeze in shaft body 3.When needing replacing the plug 4 with different-diameter
When, it is only necessary to corresponding replacement dummy block 5 squeezes shaft body 3 without replacing.Same extruding shaft body 3 is set to cooperate
4 operation of plug with different-diameter, enhancing squeeze the applicability of shaft body 3.
The diameter in the hollow duct of dummy block 5 is less than the diameter for squeezing 3 hollow structure of shaft body, and the outer diameter of dummy block 5 is big
In the outer diameter for squeezing shaft body 3.For the ease of the plug 4 with different-diameter can be arranged in same extruding shaft body 3, it is applicable in
In the tubing for squeezing production different inner diameters, the diameter for squeezing the hollow structure of shaft body 3 is greater than the diameter of plug 4；Meanwhile to protect
The movement of card plug 4 in the vertical direction will not shift, in the hollow hole for squeezing the dummy block 5 being arranged on the upside of shaft body 3
The diameter in road need to match with the diameter of plug 4, i.e., the diameter in the hollow duct of dummy block 5 need to be less than and squeeze in shaft body 3
The diameter of hollow structure.
The outer diameter of dummy block 5 is greater than the outer diameter for squeezing shaft body 3.In extrusion process, for prevent blank from dummy block 5 with
It is reversely flowed out between extrusion cylinder, the matching gap between dummy block 5 and extrusion cylinder must be as small as possible, then dummy block 5 and extruding
Friction is unavoidably generated between cylinder.When the outer diameter of dummy block 5 be greater than squeeze shaft body 3 outer diameter when, only dummy block 5 and squeeze
Pressure cylinder inner end face contact, extruding shaft body 3 will not then be generated with extrusion cylinder inner face to be contacted, to greatly reduce to extruding axis sheet
The abrasion loss of body 3.Also, when dummy block 5 due to abrasion loss is excessive can not normal use when, it is only necessary to replace dummy block 5,
Shaft body 3 is squeezed without replacing, replacement operation efficiency can not only be improved, also can be effectively reduced cost.
Squeezing shaft body 3 includes top cylinder and bottom frustum, the cross of the outer diameter and top cylinder of bottom frustum upper surface
Cross-sectional outer diameter is identical.The outer sheath of bottom frustum is equipped with fixed ring 7, the outer end face phase of the inner face and bottom frustum of fixed ring 7
Matching, also, fixed ring 7 is spirally connected on the table.The setting of bottom frustum can not only enhance the stabilization for squeezing shaft body 3
Property, additionally it is possible to make to squeeze that shaft body 3 is easier is fixed on the worktable.
Fixed ring 7 is overall structure or two parts with symmetrical structure.In use, when fixed ring 7 is whole
When structure, fixed ring 7 is from top to bottom integrally sheathed on by the upper end of extruding shaft body 3 and squeezes the outer of 3 bottom frustum of shaft body
Side, then fixed ring 7 is spirally connected on the table, realize the fixation for squeezing shaft body 3.As two that fixed ring 7 is symmetrical structure
Timesharing directly by the symmetrically placed two sides in bottom frustum of two parts of fixed ring 7, and keeps fixed ring 7 and bottom frustum close
Fitting, then fixed ring 7 is spirally connected on the table, realize the fixation for squeezing shaft body 3.
The lower end of plug 4 is provided with the driving device 8 of driving plug 4 bottom offset in the vertical direction, driving device 8 and core
The lower end of stick 4 is spirally connected so that plug 4 is fixed in driving device 8, driving device 8 along the vertical direction through the bottom of rack 1 and
Workbench 2.
Driving device 8 includes the plunger case 81 and plunger 82 installed along the vertical direction.Plunger case 81 is installed under rack 1
In arched girder 12, plunger 82 be from bottom to top successively embedded at the lower arched girder 12 of rack 1, rack 1 lower template beam 15 and workbench 2 in,
The upper end of plunger 82 is spirally connected the lower end of plug 4.It is embedded at the driving device 8 in rack 1 and workbench 2 and squeezes in shaft body 3
The dummy block 5 at end ensures the accuracy and reliability that plug 4 is displaced in the vertical direction together.
The dynamic model mechanism 6 for being set to 4 top of plug includes master cylinder 61 and dynamic beam 62, and master cylinder 61 drives dynamic beam 62 in vertical side
To upper and lower displacement.Dynamic beam 62 lower end surface is towards plug 4 and position corresponding with plug 4 is provided with extrusion die, extrusion die spiral shell
It connects in the lower end surface of dynamic beam 62.When executing squeeze job, blank is placed between extrusion die and plug 4, and the two cooperation is completed to squeeze
Molded operation.
The lower end of the master cylinder 61 of dynamic 62 upper and lower displacement of beam is driven to be screwed onto the upper end of dynamic beam 62, the upper end of master cylinder 61 is screwed onto
On the upper bearing beam 16 of rack 1.
At least four kicker cylinders 63 are uniformly bolted with close to the position of dynamic 62 periphery of beam in dynamic 62 downside of beam, kicker cylinder 63
The other end is screwed onto kicker cylinder supporting block 64, and kicker cylinder supporting block 64 is fixed on the column 14 of rack 1.Kicker cylinder 63 is used for
Branch racking beam 62, and kicker cylinder 63 is matched with master cylinder 61.Beam 62 is moved when vertical direction is subjected to displacement when master cylinder 61 drives, and is returned
The displacement of the same direction, same size occurs for journey cylinder 63 and master cylinder 61.The setting of kicker cylinder 63, can not only returning for dynamic beam 62
Journey provides power, additionally it is possible to by the adjusting to each kicker cylinder 63, different support forces is provided, to adjust and fully ensure that dynamic beam
62 stationarity.
During extrusion billet, for determining that the extrusion cylinder of blank outer diameter is realized by extrusion cylinder supporting mechanism 65
Displacement on vertical direction.Extrusion cylinder supporting mechanism 65 includes two symmetrically arranged extrusions.Extrusion is vertical including being bolted in
Mode locking support on column 14, mode locking support are located at the top position in 14 middle part of column, are bolted with along the vertical direction in mode locking support
The mode locking cylinder body of installation is bolted with mode locking sliding block on the mode locking cylinder plug of mode locking cylinder body.
Mode locking sliding block includes arc-like sheet and arc-shaped protrusions, and mode locking cylinder plug is screwed onto the upper end of arc-like sheet.Arc-shaped protrusions are set
Be placed in the lower end of arc-like sheet, it is vertical with arc-like sheet and to the inside of arcuate structure extend, the inner face of arc-like sheet and arc-shaped protrusions
Radian is identical as the outer end face radian of extrusion cylinder.The overall structure or pass through spiral shell that arc-like sheet and arc-shaped protrusions are integrally formed
The mode for connecing or welding is fixed together, also, the diameter of arc-like sheet inner face is greater than the outer diameter of extrusion cylinder, and in arc-shaped protrusions
The diameter of end face is less than the outer diameter of extrusion cylinder.
The arc-shaped protrusions of mode locking sliding block are located at the lower end of extrusion cylinder, and arc-like sheet is located at the two sides of extrusion cylinder.Under hydraulic-driven,
Mode locking cylinder plunger actuation mode locking sliding block bottom offset in the vertical direction, to drive extrusion cylinder bottom offset in the vertical direction.When
When executing squeeze job, plunger 82 drives the downward backhaul of plug 4, so that the top of plug 4 is lower than the upper surface of dummy block 5, squeezes
Cylinder supporting mechanism 65 drives extrusion cylinder to be moved downward to and is overlapped with extruding shaft body 3, at this point, the height of dummy block 5 is higher by extruding
The height of cylinder.
Then, corresponding extrusion die is installed in the lower end surface of dynamic beam 62, would be heated to predetermined temperature blank be placed on it is crowded
On pressure pad 5.Extrusion cylinder supporting mechanism 65 drives extrusion cylinder to be moved upward to and contacts with dynamic beam 62 and extrusion cylinder is pressed on dynamic beam
On 62.At this point, plunger 82 drives 4 upward stroke of plug and passes through blank center to predetermined altitude.
Then, dynamic beam 62, extrusion die move to extrusion die with extrusion cylinder downwardly together and contact with blank, and blank is placed at this time
In extrusion cylinder, continue to push later to complete squeeze job,.After completing squeeze job, extrusion cylinder, extrusion die are servo-actuated beam 62 together
It moves up, takes out the steel pipe for squeezing and completing, the downward backhaul of plug to dummy block 5 is hereinafter, carry out next squeeze job.
Next squeeze job is carried out, when processing has the tubing of same inner diameter, no replacement is required plug 4 and dummy block 5, directly
It connects and places new blank progress squeeze job；When needing to process the tubing with different inner diameters and outer diameter, placing newly
Before blank, corresponding plug 4, dummy block 5 and extrusion die are first replaced, then carry out squeeze job.
A kind of extruder with Combined extrusion axis of the invention squeezes axis sheet using squeezing shaft body 3 and being set to
The combined mode of the dummy block 5 of 3 upper end of body, cooperation plug 4 complete squeeze job.There is the tubing of different inner diameters in extrusion process
When, it is only necessary to the plug 4 and dummy block 5 with corresponding diameter or internal diameter are replaced, squeezes shaft body 3 without replacing.It is squeezing
When pressure processing has the tubing of different inner diameters, the difficulty of replacement processing component is reduced, improves replacement efficiency.Also, it is squeezing
Pad 5 abrasion losses it is excessive and can not normal use when, it is only necessary to replace dummy block 5, without replace squeeze shaft body 3, Neng Gouyou
Effect reduces cost.
Specific movement of the extruder when executing extrusion process has the tubing of different inner diameters are as follows:
A. the downward backhaul of plug 4 to its top is placed in be set to squeeze 3 upper end of shaft body dummy block 5 upper surface it
Under；
B. extrusion cylinder is displaced downwardly to dummy block 5 and is pierced by from extrusion cylinder top by extrusion cylinder supporting mechanism 65；
C. extrusion die is installed on dynamic beam 62, the blank that would be heated to predetermined temperature is placed on 5 upper surface of dummy block, squeezes
Cylinder supporting mechanism 65 extrusion cylinder is raised to contact and compress with dynamic beam 62 on dynamic beam 62；
D. plug 4 is ejected upwards from the hollow structure for squeezing shaft body 3, across the hollow duct of dummy block 5 and base
Material, and be pierced by above blank；
E. the extrusion die that beam 62 and extrusion cylinder are moved downward on dynamic 62 lower end surface of beam is moved to contact with blank；
F. beam 62 is moved, extrusion cylinder moves down extrusion billet together with extrusion die and completes crush stroke；
G. dynamic beam 62, extrusion cylinder move up together with extrusion die, and the downward backhaul of plug 4 is to the upper surface of dummy block 5 hereinafter, taking
Steel pipe is squeezed out；
H. dummy block is removed, and the dummy block 5 and plug 4 of new different inner diameters is installed；
I. start the extruding of next different size steel pipes.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (9)
1. a kind of extruder with Combined extrusion axis, characterized in that it comprises: be installed on the work of rack (1) bottom
Platform (2), the workbench (2) are fixedly arranged at the upper side the extruding shaft body (3) with hollow structure, the extruding shaft body (3)
Hollow structure in setting along the vertical direction upper and lower displacement, be used for the molding plug of extrusion billet (4), the extruding shaft body
(3) upper end is fixedly connected with the dummy block (5) with the hollow duct to match with the plug (4) diameter, the extruding
The top for padding (5) is arranged for cooperating the molding dynamic model mechanism (6) of the plug (4) extrusion billet；
The dynamic model mechanism (6) includes being driven and the dynamic beam (62) of bottom offset in the vertical direction by master cylinder (61), the dynamic beam
(62) lower end surface position corresponding with the plug (4) is provided with extrusion die.
2. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: the extruding shaft body (3)
The diameter of hollow structure is greater than the diameter of the plug (4).
3. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: outside the dummy block (5)
Diameter is greater than the outer diameter for squeezing shaft body (3), and the diameter in the hollow duct of the dummy block (5) is less than the extruding axis sheet
The diameter of body (3) hollow structure.
4. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: the extruding shaft body (3)
Including top cylinder and bottom frustum, it is arranged on the outside of the bottom frustum and is screwed on the workbench (2) and has and institute
State the fixed ring (7) that bottom frustum outer end face matches.
5. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: the lower end of the plug (4)
It is spirally connected and runs through the driving device (8) of the rack (1) bottom and workbench (2) along the vertical direction.
6. a kind of extruder with Combined extrusion axis as claimed in claim 5, it is characterised in that: driving device (8) packet
Include the plunger case (81) installed along the vertical direction and along the plunger case (81) upper and lower displacement and the plug (4) bottom end that is spirally connected
Plunger (82).
7. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: the upper end of the master cylinder (61)
It is screwed onto the top of the rack (1), the lower end of the master cylinder (61) is screwed onto the upside of the dynamic beam (62), the dynamic beam
(62) downside setting is used to support the dynamic beam (62) and cooperates with the master cylinder (61) and drive the dynamic beam (62) up and down
The kicker cylinder (63) of displacement.
8. a kind of extruder with Combined extrusion axis as claimed in claim 1, it is characterised in that: the dynamic model mechanism (6) is also
Including for driving the extrusion cylinder supporting mechanism (65) of extrusion cylinder bottom offset in the vertical direction, the extrusion cylinder supporting mechanism
It (65) include symmetrically arranged two extrusions, the extrusion includes being fixed on the rack (1) close to the dynamic beam
(62) mode locking support, the mode locking, which is supported, is equipped with mode locking cylinder body, the mode locking cylinder column of the mode locking cylinder body along vertical position
It is bolted with mode locking sliding block beyond the Great Wall.
9. a kind of extruder with Combined extrusion axis as claimed in claim 8, it is characterised in that: the mode locking sliding block includes arc
Arc-like sheet identical with the extrusion cylinder outer end face radian and arc-shaped protrusions are spent, the diameter of the inner face of the arc-like sheet is greater than institute
The outer diameter of extrusion cylinder is stated, the arc-shaped protrusions are vertically installed in the lower end of the arc-like sheet and extend inwardly, and the arc is prominent
The diameter of the inner face risen is less than the outer diameter of the extrusion cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US3580037A (en) * | 1968-10-07 | 1971-05-25 | Universal Oil Prod Co | Tube extrusion apparatus including separable arrested mandrel tip tube cutoff |
| DE2549778A1 (en) * | 1974-11-07 | 1976-05-20 | Kobe Steel Ltd | METHOD AND DEVICE FOR HYDROSTATIC EXTRUSION |
| ITMI20082325A1 (en) * | 2008-12-24 | 2010-06-25 | Danieli Off Mecc | EXPANSION HEEL FOR PRESSES BY EXTRUSION OF CABLES |
| CN201543669U (en) * | 2009-10-30 | 2010-08-11 | 谭仁甲 | Efficient metal extruder |
| CN201676911U (en) * | 2010-04-22 | 2010-12-22 | 福建省闽发铝业股份有限公司 | Section aluminum extrusion shaft integration structure |
| WO2014041881A1 (en) * | 2012-09-12 | 2014-03-20 | 宇部興産機械株式会社 | Double-action extrusion press |
| US9713830B2 (en) * | 2013-12-04 | 2017-07-25 | Ube Machinery Corporation, Ltd. | Direct double-action extrusion press |
| CN104384222B (en) * | 2014-11-27 | 2017-04-05 | 内蒙古北方重工业集团有限公司 | The locked mode slide block of guide pad on the outside of quick detachable, fast changeable |
| CN104624686A (en) * | 2015-03-03 | 2015-05-20 | 太原重工股份有限公司 | Method and device for extruding aluminium alloy pipe with variable cross section |
| CN205904244U (en) * | 2016-08-17 | 2017-01-25 | 谢巧丽 | Binocular short stroke extruder |
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