CN106475478A - Expanding machine and its expanding head preventer - Google Patents
Expanding machine and its expanding head preventer Download PDFInfo
- Publication number
- CN106475478A CN106475478A CN201610906527.XA CN201610906527A CN106475478A CN 106475478 A CN106475478 A CN 106475478A CN 201610906527 A CN201610906527 A CN 201610906527A CN 106475478 A CN106475478 A CN 106475478A
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- China
- Prior art keywords
- expanding
- groove
- type seat
- ring
- guide pad
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Classifications
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Helmets And Other Head Coverings (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The present invention discloses a kind of expanding machine and its expanding head preventer.Expanding head preventer includes ring-type seat (100), protective cover (200) and main guide pad (300)；Wherein：Ring-type seat (100) is provided with the first groove on one end of expanding voussoir (500) of expanding head, and the first groove radially extends along ring-type seat (100)；Main guide pad (300) is used for being fixed on the end of expanding voussoir (500), and with the first groove in the direction location fit with the diameter parallel of ring-type seat (100), main guide pad (300) is slidably matched with the first groove in the radial direction of ring-type seat (100)；Protective cover (200) is arranged on the other end that ring-type seat (100) deviates from expanding voussoir (500), and forming occlusion part with ring-type seat (100) position corresponding thereto, occlusion part is located on the bullet (600) of expanding head.The iron scale that the above-mentioned expanding head that can solve the problems, such as current expanding machine is easier to be come off on the inwall of ERW in expanding work is stuck.
Description
Technical field
The present invention relates to expanding machine technical field, more particularly, to a kind of expanding machine and its expanding head preventer.
Background technology
Expanding machine is the equipment realizing ERW is implemented finishing, whole after the ERW for completing welding is expanding
Circle, the finished product reaching ERW requires.Expanding head includes expanding voussoir and bullet, and expanding voussoir is used for being attached to straight weld
The inwall of pipe, bullet is arranged in the inner chamber of expanding voussoir, and with expanding truncated wedge wedgewise mechanism, with bullet by
Gradually stretch into the inner chamber of expanding voussoir, expanding voussoir is moved radially outwards in the presence of bullet, thus playing extension vertical masonry joint
The effect of welded tube diameter, expanding complete after, withdraw bullet, expanding voussoir can fall after rise, finally after departing from the support of bullet
Depart from ERW.
By above-mentioned expanding process, bullet and expanding voussoir are moving body, expanding will certainly make straight weld
The iron scale of inside pipe wall drops on the cooperation inclined-plane with expanding voussoir for the bullet, and then leads to both stuck, final impact
Being normally carried out of expanding work.It will be apparent that the iron scale that expanding work leads to comes off, problems demand solves.Due to expanding voussoir
With bullet respectively towards radial and axial movement, traditional protective cover cannot be carried out installing, and is therefore difficult to play a role.
Content of the invention
In view of this, the present invention discloses a kind of expanding head preventer of expanding machine, to solve the expansion of current expanding machine
Footpath head is easier to the stuck problem of the iron scale that come off on the inwall of ERW in expanding work.
For solving above-mentioned technical problem, the present invention is disclosed directly below technical scheme：
The expanding head preventer of expanding machine, including ring-type seat, protective cover and main guide pad；Wherein：
Described ring-type seats against and is provided with the first groove on one end of expanding voussoir of nearly expanding head, and described first groove is along institute
State radially extending of ring-type seat；Described main guide pad is used for being fixed on the end of described expanding voussoir, and with described first groove
In the direction location fit with the diameter parallel of described ring-type seat, described main guide pad is in the radial direction of described ring-type seat and institute
State the first groove to be slidably matched；
Described protective cover is arranged on the other end that described ring-type seat deviates from described expanding voussoir, and with described ring-type seat and its
Corresponding position forms occlusion part, and described occlusion part is located on the described bullet of described expanding head.
Preferably, above-mentioned expanding head preventer also includes secondary guide pad, wherein：
Described pair guide pad is used for being arranged on the end of described ring-type seat, and described ring-type seats against the one of closely described expanding voussoir
End is provided with the second groove；Described second groove radially slides cooperation with described pair guide pad in described ring-type seat.
Preferably, in above-mentioned expanding head preventer, described main guide pad is T-shaped guide pad, and described first groove is T-shaped
Groove.
Preferably, in above-mentioned expanding head preventer, the exterior side port of described first groove and described second groove
Releasably it is provided with cover plate to block the port of described first groove and the second groove.
Preferably, in above-mentioned expanding head preventer, the bottom land of described first groove is provided with insertion to described ring-type seat
The other end dismounting avoid hole；Described main guide pad is fixed on institute by the threaded connector that described dismounting can be passed through to avoid hole
State on expanding voussoir.
Preferably, in above-mentioned expanding head preventer, described protective cover is cylindric protective cover.
Expanding machine, including：
As above arbitrary described expanding head preventer.
The expanding head preventer of expanding machine disclosed by the invention has the advantages that：
In expanding head preventer disclosed by the invention, protective cover is arranged on ring-type seat, and ring-type seat passes through the first groove
Cooperation with main guide pad makes whole preventer in expanding work, and expanding voussoir can move with respect to preventer, and
Do not affect expanding head preventer iron scale is blocked, and then avoid iron scale to enter between expanding voussoir and bullet
Mating surface, that is, be avoided that iron scale leads to both stuck phenomenon.
Brief description
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention or background technology, below will be to embodiment or the back of the body
Scape technology description in required use accompanying drawing be briefly described it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the expanding head preventer of expanding machine disclosed in the embodiment of the present invention；
Fig. 2 is the top view of part-structure in Fig. 1；
Fig. 3 is the A-A direction view of Fig. 1.
Description of reference numerals：
100- ring-type seat, 200- protective cover, the main guide pad of 300-, 310- threaded connector, 400- pair guide pad, 500- expand
Footpath voussoir, 600- bullet.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, real below in conjunction with the present invention
Apply the accompanying drawing in example, the enforcement it is clear that described is clearly and completely described to the technical scheme in the embodiment of the present invention
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of not making creative work, all should belong to the present invention and protect
The scope of shield.
Refer to Fig. 1-3, the embodiment of the present invention discloses a kind of expanding head preventer of expanding machine.Disclosed expanding head
Preventer includes ring-type seat 100, protective cover 200 and main guide pad 300.
Ring-type seat 100 is circulus, is docked at one end of the expanding voussoir 500 of expanding head.Ring-type seat 100 is near expanding
First groove is provided with one end of voussoir 500, the first groove radially extends along ring-type seat 100.
Main guide pad 300 is used for being fixed on the end of expanding voussoir 500, and with the first groove in the axle with ring-type seat 100
The parallel direction location fit of line, main guide pad 300 is slidably matched with the first groove in the radial direction of ring-type seat 100, also
It is to say, main guide pad 300 is connected with the first groove, main guide pad 300 can only be made in ring-type seat 100 with respect to the first groove
Radially slide.
Protective cover 200 is arranged on the other end that ring-type seat 100 deviates from expanding voussoir 500, protective cover 200 and ring-type seat 100
Position corresponding thereto forms occlusion part, and occlusion part is located on the bullet 600 of expanding head.
Disclosed in the embodiment of the present invention, the work process of expanding head preventer is as follows：
When expanding work implemented by expanding machine, bullet 600 is to putting in direction (i.e. towards the left side in Fig. 1 view place orientation
Side to) motion, expanding voussoir 500 radially extension movement in the presence of the bullet 600 gradually putting in, this process
In, main guide pad 300 moving radially away from the center of circle in ring-type seat 100 along the first groove, thus realizing main guide pad 300 and expanding
Footpath voussoir 500 is with respect to the motion of ring-type seat 100, and ring-type seat 100 and protective cover 200 are then due to the first groove and main guide pad
300 matching relationship and occlusion part can be kept to be in occlusion state, and then make in expanding work, to squeeze the iron scale falling and exist
Cannot be introduced under the barrier effect of occlusion part, on bullet 600 and the cooperation inclined-plane of expanding voussoir 500, also just to lead to both
There is stuck phenomenon.
After expanding work completes, bullet 600 is towards the direction retracted (i.e. towards the right side in Fig. 1 view place orientation
Side to) motion, with withdrawing of bullet 600, expanding voussoir 500 gradually falls after rise, and during this, main guide pad 300 is along the
One groove moves radially adjacent to center of circle direction in ring-type seat 100, thus realizing main guide pad 300 and expanding voussoir 500 relatively
In the relative movement of ring-type seat 100, equally, in whole process, occlusion part is still within occlusion state so that expanding work is squeezed
The iron scale falling cannot be introduced into, on bullet 600 and the cooperation inclined-plane of expanding voussoir 500, also both cannot being led to occur stuck
Phenomenon.
By the above-mentioned job analysis to expanding machine, expanding head preventer disclosed in the embodiment of the present invention
In, protective cover 200 is arranged on ring-type seat 100, and ring-type seat 100 is made whole by the cooperation of the first groove and main guide pad 300
In expanding work, expanding voussoir 500 can move individual preventer with respect to preventer, and does not affect expanding head preventer
Iron scale is blocked, and then avoids iron scale to enter the mating surface between expanding voussoir 500 and bullet 600, can
Iron scale is avoided to lead to both that stuck phenomenon occurs.
During expanding voussoir 500 is with respect to the motion of expanding head preventer, can main guide pad 300 relatively stable
It is that expanding voussoir 500 can be with respect to the premise of expanding head preventer stable motion, in order to improve that ground slides along the first groove
The stability of motion, the first groove can arrange multiple, and multiple first grooves can be in discrete point of the circumferencial direction of ring-type seat 100
Cloth.Based on this, main guide pad 300 can also arrange equal number, correspondingly with the first groove fit.First groove and master
Guide pad 300 all can be uniformly distributed, it is to avoid assembling difficulty and motion stuck phenomenon that error leads to.
In order to improve the stability that expanding voussoir 500 moves with respect to expanding head preventer further, the present invention is implemented
Expanding head preventer disclosed in example can also include secondary guide pad 400.Secondary guide pad 400 is used for being arranged on ring-type seat 100
End, ring-type seat 100 is provided with the second groove near one end of expanding module 500, and the second groove and secondary guide pad 400 are in ring-type
Seat 100 radially slide cooperation.Cooperation with the first groove and main guide pad 300 can unlike, the second groove and pair are led
To block 400 between the two the direction with the diameter parallel of ring-type seat 100 can no location fit, and only exist along ring-type seat
100 radially slide cooperation.Specifically, the first groove can be square groove, corresponding, and secondary guide pad 400 can be square block.
In the present embodiment, main guide pad 300 can be T-shaped guide pad, and accordingly, the first groove can be T-slot.The
One groove is usually groove, and main guide pad 300 can be entered wherein matched by one end of the first groove.Certainly, dominate
Combined mechanism can also be adopted to block 300, be installed in T-slot by the notch of T-slot and realize assembling.Certainly, the first groove
Can be dovetail groove, the present embodiment does not limit the concrete shape of the first groove.
For the ease of installing, the first groove and the second groove can be grooves, and as described above, the first groove is the equal of
The slideway of main guide pad 300, the second groove is the equal of the slideway of secondary guide pad 400.During expanding, ferrum oxide micromicro
Can fall in the first groove and the second groove, and then enter between main guide pad 300 and the sliding surface of the first groove and secondary guiding
Between the sliding surface of block 400 and the second groove, this can affect the motion of above-mentioned slide construction.For this reason, preferably, the first groove and
The exterior side port of the second groove is all detachably provided with cover plate to block the port of the first groove and the second groove.
Main guide pad 300 can may be detachably retained on expanding voussoir 500, and for the ease of dismounting, first is recessed
The dismounting that the bottom land of groove is provided with the other end to ring-type seat 100 for the insertion avoids hole, and main guide pad 300 is by keeping away through dismounting
The threaded connector 310 in hole is allowed to be fixed on expanding voussoir 500.As a same reason, secondary guide pad 400 can also be with dismountable side
Formula is fixed on expanding voussoir 500.
During expanding, squeeze the iron scale falling and drop in expanding voussoir 500 and circular cone 600, be in vertical masonry joint
The iron scale of welded tube bottom there is usually no the problem fallen, and therefore, the position that protective cover 200 can fall in iron scale is risen
Act on to blocking.Preferably, protective cover 200 is cylindric protective cover, cylindric protective cover enable omnibearing block,
Play more preferable protection effect.
Based on expanding head preventer disclosed in the embodiment of the present invention, the embodiment of the present invention is also disclosed a kind of expanding machine, institute
Disclosed expanding machine is included as described expanding head preventer arbitrary in foregoing embodiments.
Herein, each preferred version only emphasis describe different with other schemes, as long as each preferred version
Do not conflict, can combination in any, the embodiment being formed after combination also within category disclosed in this specification it is contemplated that
Text is succinct, is individually described with regard to no longer formed to combination embodiment herein.
The above is only the specific embodiment of the present invention, makes skilled artisans appreciate that or realizing this
Bright.Multiple modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (7)
1. the expanding head preventer of expanding machine is it is characterised in that include ring-type seat (100), protective cover (200) and main guide pad
(300)；Wherein：
Described ring-type seat (100) is provided with the first groove on one end of expanding voussoir (500) of expanding head, and described first is recessed
Groove radially extends along described ring-type seat (100)；Described main guide pad (300) is used for being fixed on described expanding voussoir (500)
End, and with described first groove in the direction location fit with the diameter parallel of described ring-type seat (100), described main guide pad
(300) radial direction in described ring-type seat (100) is slidably matched with described first groove；
Described protective cover (200) is arranged on the other end that described ring-type seat (100) deviates from described expanding voussoir (500), and with institute
State ring-type seat (100) position corresponding thereto and form occlusion part, described occlusion part is located at the bullet of described expanding head
(600) on.
2. expanding head preventer according to claim 1 is it is characterised in that described expanding head preventer also includes pair
Guide pad (400), wherein：
Described pair guide pad (400) is used for being arranged on the end of described ring-type seat (100), and described ring-type seat (100) is near described
One end of expanding voussoir (500) is provided with the second groove；Described second groove and described pair guide pad (400) are in described ring-type seat
(100) radially slide cooperation.
3. expanding head preventer according to claim 2 is it is characterised in that described main guide pad (300) is T-shaped guiding
Block, described first groove is T-slot.
4. expanding head preventer according to claim 3 is it is characterised in that described first groove and described second groove
Exterior side port be all detachably provided with cover plate to block the port of described first groove and the second groove.
5. expanding head preventer according to claim 1 is it is characterised in that the bottom land of described first groove is provided with and passes through
The dismounting passing to the other end of described ring-type seat (100) avoids hole；Described main guide pad (300) is by keeping away through described dismounting
The threaded connector (310) in hole is allowed to be fixed on described expanding voussoir (500).
6. expanding head preventer according to claim 1 is it is characterised in that described protective cover (200) is cylindric anti-
Guard shield.
7. expanding machine is it is characterised in that include：
Arbitrary described expanding head preventer in claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906527.XA CN106475478B (en) | 2016-10-18 | 2016-10-18 | Expanding machine and its expanding head protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906527.XA CN106475478B (en) | 2016-10-18 | 2016-10-18 | Expanding machine and its expanding head protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106475478A true CN106475478A (en) | 2017-03-08 |
| CN106475478B CN106475478B (en) | 2018-05-29 |
Family
ID=58270184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906527.XA Active CN106475478B (en) | 2016-10-18 | 2016-10-18 | Expanding machine and its expanding head protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106475478B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798955A (en) * | 1971-09-06 | 1974-03-26 | Mannesmann Roehren Werke Ag | Tube expander |
| JPS5865529A (en) * | 1981-10-16 | 1983-04-19 | Hitachi Ltd | Pipe expanding method |
| JP2002120029A (en) * | 2000-10-17 | 2002-04-23 | On Industries Ltd | Expansion device of thin-walled stainless steel tube |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| CN201046482Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding set |
| CN101235866A (en) * | 2007-01-30 | 2008-08-06 | 东海橡胶工业株式会社 | Dust-proof cover and assembling structure thereof |
| CN101653795A (en) * | 2009-09-04 | 2010-02-24 | 太原重工股份有限公司 | Vertical hydraulic straightening machine |
| CN203862880U (en) * | 2014-05-21 | 2014-10-08 | 无锡双友石化机械有限公司 | Wedge block protecting structure of diameter-expansion head |
-
2016
- 2016-10-18 CN CN201610906527.XA patent/CN106475478B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798955A (en) * | 1971-09-06 | 1974-03-26 | Mannesmann Roehren Werke Ag | Tube expander |
| JPS5865529A (en) * | 1981-10-16 | 1983-04-19 | Hitachi Ltd | Pipe expanding method |
| JP2002120029A (en) * | 2000-10-17 | 2002-04-23 | On Industries Ltd | Expansion device of thin-walled stainless steel tube |
| CN101235866A (en) * | 2007-01-30 | 2008-08-06 | 东海橡胶工业株式会社 | Dust-proof cover and assembling structure thereof |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| CN201046482Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding set |
| CN101653795A (en) * | 2009-09-04 | 2010-02-24 | 太原重工股份有限公司 | Vertical hydraulic straightening machine |
| CN203862880U (en) * | 2014-05-21 | 2014-10-08 | 无锡双友石化机械有限公司 | Wedge block protecting structure of diameter-expansion head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106475478B (en) | 2018-05-29 |
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