CN106216538A - A kind of major diameter ring mechanical expansion equipment - Google Patents
A kind of major diameter ring mechanical expansion equipment Download PDFInfo
- Publication number
- CN106216538A CN106216538A CN201610631061.7A CN201610631061A CN106216538A CN 106216538 A CN106216538 A CN 106216538A CN 201610631061 A CN201610631061 A CN 201610631061A CN 106216538 A CN106216538 A CN 106216538A
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- China
- Prior art keywords
- major diameter
- expansion equipment
- diameter ring
- mechanical expansion
- stationary work
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
- B21D41/026—Enlarging by means of mandrels
- B21D41/028—Enlarging by means of mandrels expandable mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a kind of major diameter ring mechanical expansion equipment, this staving press includes plug cylinder, prop up support plate, stationary work-table and slide block, described support plate upper surface center is provided with fixing work, it is connected with stationary work-table lower surface in described piston cylinder is installed on stationary work-table and by piston rod, at least two set toggle step-up systems are evenly arranged along stationary work-table circumferencial direction, it is evenly equipped with point lobe punch corresponding with described toggle step-up system along stationary work-table circumferencial direction on described support plate, often set point lobe male bottom is provided with guide groove, slide in radial guidance on a support plate under the most corresponding toggle step-up system effect.The present invention uses Toggle Force Amplifier, the power being applied on slide block by hydraulic cylinder is amplified, mechanical expansion equipment is made to be obtained in that bigger power output, it is particularly suitable for major diameter ring expanding of a diameter of more than 5m, additionally, toggle mechanism is easy to use, it is simple to maintenance and member replacing, produces and low cost of manufacture.
Description
Technical field
The present invention relates to a kind of expanding machine, particularly relate to a kind of major diameter ring mechanical hole reaming machine.
Background technology
Machinery expanding is a kind of advanced manufacturing technology, is to manufacture major diameter, Hi-grade steel pipeline steel tube and aerospace weapon
Equip by an important process link of large-scale connection ring.Machinery expanding typically uses skewback reaming principle, convex by point lobe
Mode division section makes ring produce plastic deformation, reaches to improve product size and form accuracy, elimination welding residual stress shape the most simultaneously
Become the residual stress state being conducive to improving goods bearing capacity, and improve the purpose of yield strength.
The expanding head of Mechanical expanding mill is made up of fan-shaped mould, skewback, sphenoid.Fan-shaped mould is fixed on skewback,
Skewback is connected with sphenoid, and sphenoid is connected with hydraulic cylinder piston rod by expanding axle.When hydraulic cylinder piston drives sphenoid
Time mobile, fan-shaped mould outward expansion.Expanding power acts on workpiece by skewback by fan-shaped mould so that ring or pipe
Diameter expanded.Chinese invention patent Publication No. CN104001817A, CN103920823A, CN103170521A,
The patents of invention of CN102965589A etc. are all the inventions relevant to such expanding machine.
When required expanding ring diameter is smaller, such expanding machine the most functionally meets demand, and has
The features such as dimensional accuracy is higher, be easy to compensate for die wear, the suitability is strong, thus be widely used.Along with aviation is navigated
The high speed development of it and heavy-duty industrial, primary load bearing component develops towards large-scale integration direction, connects the diameter of ring class A of geometric unitA also
By original 3～5 meters, extend to 8～10 meters, for such large ring, if expanding time still use traditional form
Expanding head, respectively forming skewback, sphenoid and fan-shaped mould due to expanding head is all solid, expanding machine sphenoid, skewback and fan
The overall dimensions of shape mould will be the hugest with volume, not only cause the waste of material, also can produce owing to needs promote huge
Energy loss that skewback and fan-shaped mould run and bring and energy waste.
Just can eliminate between steel pipe or the 1% of ring diameter～1.5% according to expanding knowable to domestic and international relevant information
Forming residual stress and improve circularity, directly spend, is computed, for the aluminium alloy rings of a diameter of 10 meters, reaches needed for expanding 3%
Power less than 30MN, the power applied to every piece of valve, less than 2.5MN, can use toggle mechanism to drive petal to enter completely
The expanding operation of row.
Summary of the invention
The major diameter that the technical problem to be solved is to provide a kind of compact conformation, volume is little and energy loss is low
Ring mechanical expansion equipment.
In order to solve above-mentioned technical problem, the major diameter ring mechanical expansion equipment that the present invention provides, including piston cylinder, support
Dish, stationary work-table and slide block, described support plate upper surface center is provided with stationary work-table, and described piston cylinder is installed on fixing
Being connected with slide block lower surface in the centre bore of workbench and by piston rod, at least two set toggle step-up systems are along stationary work-table
Circumferencial direction is evenly arranged, and described support plate is evenly equipped with relative with described toggle step-up system along stationary work-table circumferencial direction
Point lobe punch answered, often set toggle step-up system includes reinforcement bar, force application rod, and both are hinged on slide block circumference by a connecting piece
On wall, forming fixed point rotary mechanism, the described reinforcement bar other end is hinged in stationary work-table circumferential wall, forms fixed point rotary machine
Structure, the described force application rod other end point lobe punch corresponding thereto is hinged, and often set point lobe male bottom is provided with guide groove, described support
Dish upper surface is along the circumferential direction evenly equipped with the radial guidance matched with described guide groove, and often set point lobe punch is the most corresponding
Slide on radial guidance under toggle step-up system effect.
This staving press also includes that guide pillar guider, described guiding guide pillar lower end are fixed on stationary work-table, and guiding is led
Post columnar part coordinates with the fairlead in slide block, it is achieved the guiding of slide block.
Often set point lobe punch includes basis mould and the expanding petal being connected with described basis diebolt, described basis mould
Tool inner surface is welded with the contiguous block hinged with the force application rod of described toggle step-up system, and bottom has and described radial guidance phase
The guide groove coordinated.
Offer, bottom described expanding petal, the guide groove matched with described radial guidance.
The rotating mechanism that at least two cuff rotating ring parts rotate is installed, described rotating mechanism circumferentially side on described support plate
To uniform, by rotating ring, carrying out second reaming, what the gap between correcting due to point lobe punch was caused expanding uneven asks
Topic.
Described rotating mechanism includes rotary supporting roller, rotary supporting roller bearing block and drives hydraulic motor, described rotation
Supporting roller to be installed in radial guidance, a little higher than described radial guidance upper surface of roll surface height, rotary supporting roller drives ring to turn
Dynamic, ring is also guided by rotary supporting roller carrying ring weight.
The basic Design of Dies of described point of lobe punch is eccentric punch structure, and off-centre operation diameter needs according to actual process,
Determined by the minimum clearance value allowed between mold section.The expanding petal of described point of lobe punch is designed as eccentric mandrel structure, off-centre operation
Diameter needs according to actual process, the minimum clearance value allowed between mold section determine.
A diameter of more than 5m of described major diameter ring.
Beneficial effects of the present invention:
Using Toggle Force Amplifier, the power being applied on slide block by hydraulic cylinder is amplified so that mechanical expansion equipment can
Obtain bigger power output, fully meet the demand of the expanding power of large ring；The employing of toggle mechanism is possible not only to slide block
Vertical motion changes into the radial motion of mould, and radial displacement size is little affected by restriction and stroke facilitates adjustable, is prevented effectively from
The mold materials waste problem that traditional cone bar petal formula shape expanding machine is brought, has saved production and manufacturing cost, has been particularly suitable for
Major diameter ring expanding, it addition, toggle mechanism is easy to use in a diameter of more than 5m, it is simple to maintenance and member replacing, energy
Effectively reduce maintenance cost.
Dividing lobe punch design is the combinative structure being made up of with expanding petal basis mould, goes for different oval
Degree and the ring of internal via shape are expanding, when ring endoporus ovality and alteration of form or must not due to die surface abrasion
When not repairing a die, only need to repair external surface shape and the size of expanding petal, and without changing basis mould, can farthest save
About material and raising production efficiency.
The basic Design of Dies dividing lobe punch is eccentric punch structure, when score lobe punch can be made radially movable, punch
Side is the biggest the closer to its distance of position in the center of circle, can effectively prevent movement interference problem that may be present between punch, also allow for
Produce and manufacture.
The eccentric design of expanding petal, when expanding petal can be made radially movable, punch side is the closer to the center of circle
Its distance of position the biggest, can effectively prevent movement interference problem that may be present between punch, meanwhile, also allow for producing and system
Make.
Accompanying drawing explanation
Fig. 1 is the structure principle chart front view of major diameter ring mechanical expansion equipment of the present invention；
Fig. 2 is the structure principle chart top view of major diameter ring mechanical expansion equipment of the present invention；
Fig. 3 is the support plate structure schematic diagram of major diameter ring mechanical expansion equipment of the present invention；
Fig. 4 is toggle step-up system and a point lobe punch structure schematic diagram for major diameter ring mechanical expansion equipment of the present invention；
Fig. 5 is the eccentric foundation mould structure schematic diagram of major diameter ring mechanical expansion equipment of the present invention；
Fig. 6 is the bias expanding petal structural representation of major diameter ring mechanical expansion equipment of the present invention.
Label declaration: 1-fluid pressure drive device；11-lead；12-slide block；13-slide block contiguous block；14-stationary work-table
Contiguous block；15-stationary work-table；16-piston cylinder；2-toggle step-up system；21-connects sheet；22-reinforcement bar；23-force application rod；
3-support plate structure；31-rectangle radial guidance；32-rotary supporting roller；33-props up support plate；34-drives hydraulic motor；4-divides lobe convex
Mould；41-divides lobe punch contiguous block；42-basis mould；The expanding petal of 43-；5-workpiece.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention provide major diameter ring mechanical expansion equipment, this staving press include fluid pressure drive device 1,
Toggle step-up system 2, support plate structure 3 and point lobe punch 4, a support plate 33 fixes on the ground, and upper surface center is provided with
Stationary work-table 15, in piston cylinder 16 is installed on the centre bore of stationary work-table 15 and by piston rod and slide block 12 lower surface phase
Even, four lead 11 lower ends the most equally distributed are fixed on stationary work-table face, and columnar part is internal with slide block 12
Four fairlead matched in clearance, the upper and lower chamber of piston cylinder 16 is all connected to hydraulic circuit (being not drawn in figure), in hydraulic-driven system
Under the effect of system (being not drawn in figure), piston rod moves up and down, thus band movable slider is under the guide effect of four leads 11
Move the most smoothly.
As shown in Figure 1 and Figure 4,12 set toggle step-up systems are uniform along stationary work-table circumferencial direction, often set toggle reinforcement
Device is all made up of connection sheet 21, reinforcement bar 22 and force application rod 23, and one end of three is articulated with same pin joint, can be along hinged
Point rotates, and the other end of reinforcement bar 22 is articulated with on the contiguous block 14 being welded in the middle part of stationary work-table 15, force application rod 23 another
One end is articulated with on the contiguous block 41 being welded on the mould 42 of basis, and the other end of connection sheet is articulated with and is welded on slide block 12 lower end
Contiguous block 13 on.Each pin joint line of centres, point lobe punch centrage and center line of guide rail vertical projection are to a support plate table top
Overlapped time upper, to guarantee that point lobe punch can radially level slip on guide rail.
Shown in Fig. 2 and Fig. 3, a support plate 33 is circular, and upper surface is bolted the most uniform 12
Rectangle radial guidance 31；Along the circumferential direction it is evenly distributed with 3 set rotating mechanisms every 120 ° on described support plate table top the most simultaneously,
Often set rotating mechanism includes rotary supporting roller 32, rotary supporting roller bearing block and drives hydraulic motor 34, and rotary supporting roller 32 is pacified
It is placed in rectangle radial guidance 31, the upper surface of a little higher than support plate rectangle radial guidance 31 of its roll surface height, three rotations
Support roller carries the weight of ring 5 and guides ring 5.
As Figure 4-Figure 6, point lobe punch totally 12 set, often set point lobe punch structure is identical, uniformly divides at circumferencial direction
Cloth, often set point lobe punch is all formed by bolt compact siro spinning technology by 1 basic mould 42 and 1 expanding petal 43, described basis
Mould 42 and expanding petal 43 are designed as eccentric mandrel structure, it is ensured that distance δ between the mould of each basis2>δ1, can effectively prevent convex
Intermode movement interference that may be present problem, meanwhile, also allows for producing and manufacturing.Basis mould 42 and the bottom of expanding petal 43
Have guide groove and be vertically pressed on rectangle radial guidance 31, under the guide effect of the left and right sides of rectangle radial guidance 31,
Point lobe punch can slide along guide pass level, under the effect of expanding power, the outer surface of 12 pieces of expanding petals 43 by with ring 5
Inner surface contacts and promotes ring 5 toward moving radially, it is achieved expanding.
Expanding action to the present invention is further described below in conjunction with the accompanying drawings.
The expanding action of the present invention is divided into the most expanding and secondary is expanding:
As Figure 1-4, time the most expanding, hydraulic oil is filled into piston cylinder 16 by fluid power system (being not drawn in figure)
Upper end, drive connection slide block 12 on the piston rod of piston cylinder 16 down moves；Under the guide effect of lead 11, sliding
Block can be the most descending, and the 12 pieces of contiguous blocks being uniformly distributed along the circumference are respectively articulated with the connection sheet 21 of 12 set toggle step-up systems,
The active force that hydraulic cylinder 16 is applied on slide block 12 is divided into 12 grades and is conducted to the reinforcement bar of 12 set toggle step-up systems respectively
22, now pressure angle α tapers into, and reinforcement bar carries out power amplification, and power is delivered to point by reinforcement bar 22 by force application rod 23
On the basic mould 42 of lobe punch, form radial forces, due to basic mould 42 and the expanding petal 43 of 12 set point lobe punch
Bottom all have guide groove and be pressed in the most vertically on 12 pieces of rectangle radial guidances 31, in the guide effect of rectangular guideway 31
Under, radial forces promotes 12 pieces of points of lobe punch radially movable, it is achieved ring 5 expanding, fluid power system (is not drawn in figure
Go out) after pressurize certain time, hydraulic oil is filled into the lower end of piston cylinder 16, slide block 12 is up, and 12 set toggle step-up systems exist
Connect and radially reclaim under the drive of sheet 21, promote 12 pieces of points of lobe punch (containing basis mould 42 and expanding petal 43) radial contraction
And separate with ring 5, the most expanding action completes.
For the gap delta between correcting due to point lobe punch1(as shown in Figure 4) the expanding problem of non-uniform caused, needs to carry out
Secondary is expanding.Now prop up 3 set rotary supporting rollers 32 on support plate 33 to rotate under the effect of hydraulic drive motor 34, drive ring 5
Rotating 15 °, afterwards, hydraulic oil is filled into the upper end of piston cylinder 16 by fluid power system (being not drawn in figure) again, the company of driving
The slide block 12 being connected on the piston rod of piston cylinder 16 down moves, and toggle step-up system is (containing connecting sheet 21, reinforcement bar 22 and force
Bar 23) coordinate rectangle radial guidance 31 to guide the vertical motion of slide block 12 to be converted into 12 pieces of point lobe punch (containing basic mould 42
With expanding petal 43) radial motion, by that ring 5 carries out second time is the most expanding with for the first time expanding exact same way.
Claims (9)
1. a major diameter ring mechanical expansion equipment, including piston cylinder (16), a support plate (33), stationary work-table (14) and slide block
(12), it is characterised in that: described support plate (33) upper surface center is provided with fixing work (14), described piston cylinder (16) peace
In being loaded on the centre bore of described stationary work-table (14) and by slide block (12) lower end of piston rod with stationary work-table top
Face is connected, and at least two sets toggle step-up system (2) are evenly arranged along described stationary work-table (14) circumferencial direction, described support
It is evenly equipped with point lobe punch (4) corresponding with described toggle step-up system (2) along stationary work-table circumferencial direction, often on dish (33)
Set toggle step-up system includes reinforcement bar (22), force application rod (23), and both are hinged on slide block circumferential wall by a connecting piece (21)
On, forming fixed point rotary mechanism, described reinforcement bar (22) other end is hinged in stationary work-table circumferential wall, forms fixed point rotary
Mechanism, described force application rod (23) other end described point of lobe punch (4) corresponding thereto is hinged, described support plate upper surface edge
Circumferencial direction is evenly equipped with the radial guidance matched with described guide groove, and often set point lobe male bottom is provided with guide groove, the most relatively
Slide on radial guidance under described toggle step-up system (2) effect answered.
Major diameter ring mechanical expansion equipment the most according to claim 1, it is characterised in that: this staving press also includes that guide pillar is led
To device, described lead (11) lower end is fixed on described stationary work-table (14), in lead columnar part and slide block
Fairlead coordinate guide.
Major diameter ring mechanical expansion equipment the most according to claim 1 and 2, it is characterised in that: often point lobe described in set is convex
Mould (4) includes basis mould (42) and the expanding petal (43) being connected with described basis diebolt, table in the mould of described basis
Face is welded with the connection sheet (41) hinged with the force application rod of described toggle step-up system, and bottom has and matches with described radial guidance
The guide groove closed.
Major diameter ring mechanical expansion equipment the most according to claim 3, it is characterised in that: described expanding petal (43) bottom
Offer the guide groove matched with described radial guidance.
Major diameter ring mechanical expansion equipment the most according to claim 1 and 2, it is characterised in that: on described support plate (33)
Being provided with the rotating mechanism that at least two cuff rotating ring parts rotate, described rotating mechanism is the most uniform.
Major diameter ring mechanical expansion equipment the most according to claim 5, it is characterised in that: described rotating mechanism includes rotating
Supporting roller (32), rotary supporting roller bearing block and drive hydraulic motor (34), described rotary supporting roller (32) is installed on radially
In guide rail, a little higher than described radial guidance upper surface of roll surface height.
Major diameter ring mechanical expansion equipment the most according to claim 1 and 2, it is characterised in that: described point of lobe punch (4)
Basis mould (42) is eccentric punch structure.
Major diameter ring mechanical expansion equipment the most according to claim 1 and 2, it is characterised in that: described point of lobe punch (4)
Expanding petal (43) is eccentric mandrel structure.
9. according to the major diameter ring mechanical expansion equipment described in any one of claim 1-8, it is characterised in that: described major diameter ring
More than the diameter 5m of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631061.7A CN106216538B (en) | 2016-08-04 | 2016-08-04 | A kind of major diameter ring mechanical expansion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631061.7A CN106216538B (en) | 2016-08-04 | 2016-08-04 | A kind of major diameter ring mechanical expansion equipment |
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| Publication Number | Publication Date |
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| CN106216538A true CN106216538A (en) | 2016-12-14 |
| CN106216538B CN106216538B (en) | 2017-12-15 |
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| CN201610631061.7A Active CN106216538B (en) | 2016-08-04 | 2016-08-04 | A kind of major diameter ring mechanical expansion equipment |
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| CN106825274A (en) * | 2017-01-20 | 2017-06-13 | 山东省调水工程技术研究中心有限公司 | Large-diameter steel pipe enlarging/necking module and moulding process |
| CN106862390A (en) * | 2017-03-09 | 2017-06-20 | 山东省调水工程技术研究中心有限公司 | Bell and spigot makes mould |
| CN106862403A (en) * | 2017-01-20 | 2017-06-20 | 山东省调水工程技术研究中心有限公司 | Large-diameter steel pipe dilates mould |
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