CN106475478B - Expanding machine and its expanding head protective device - Google Patents
Expanding machine and its expanding head protective device Download PDFInfo
- Publication number
- CN106475478B CN106475478B CN201610906527.XA CN201610906527A CN106475478B CN 106475478 B CN106475478 B CN 106475478B CN 201610906527 A CN201610906527 A CN 201610906527A CN 106475478 B CN106475478 B CN 106475478B
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- Prior art keywords
- expanding
- groove
- annular seat
- guide pad
- protective device
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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
- 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 protective device.Expanding head protective device includes annular seat (100), protective cover (200) and main guide pad (300)；Wherein：Annular seat (100) is provided with the first groove on one end of the expanding voussoir (500) of expanding head, and the first groove is radially extended along annular seat (100)；Main guide pad (300) is used to be fixed on the end of expanding voussoir (500), and with the first groove in the direction location fit parallel with the axis of annular seat (100), main guide pad (300) is slidably matched in the radial direction of annular seat (100) with the first groove；Protective cover (200) is arranged on the other end that annular seat (100) deviates from expanding voussoir (500), and occlusion part is formed with the position of annular seat (100) 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 from the inner wall of straight seam welded pipe in expanding work is stuck.
Description
Technical field
The present invention relates to expanding machine technical field more particularly to a kind of expanding machines and its expanding head protective device.
Background technology
Expanding machine is to realize the equipment for implementing finishing to straight seam welded pipe, expanding rear whole for that will weld the straight seam welded pipe completed
Circle, reaches the finished product requirement of straight seam welded pipe.Expanding head includes expanding voussoir and bullet, and expanding voussoir is used to be attached to straight weld
The inner wall of pipe, bullet are arranged in the inner cavity of expanding voussoir, and with expanding truncated wedge wedgewise mechanism, with bullet by
The inner cavity of expanding voussoir is gradually stretched into, expanding voussoir is moved radially outwards under the action of bullet, so as to play extension vertical masonry joint
The effect of welded tube diameter after expanding completion, withdraws bullet, and expanding voussoir can be fallen after rise after departing from the support of bullet, finally
Depart from straight seam welded pipe.
By above-mentioned expanding process, bullet and expanding voussoir are moving body, expanding to cause straight weld
The iron scale of inside pipe wall drops on the cooperation inclined-plane of bullet and expanding voussoir, and then causes the two stuck, final to influence
Expanding work is normally carried out.It will be apparent that iron scale caused by expanding work comes off, problems demand solves.Due to expanding voussoir
With bullet respectively towards radial and axial movement, traditional protective cover can not be installed, therefore be difficult to play a role.
The content of the invention
In view of this, the present invention discloses a kind of expanding head protective device of expanding machine, to solve the expansion of current expanding machine
Footpath head is easier to the problem of iron scale to be come off from the inner wall of straight seam welded pipe is stuck in expanding work.
In order to solve the above technical problems, the present invention is disclosed directly below technical solution：
The expanding head protective device of expanding machine, including annular seat, protective cover and main guide pad；Wherein：
The ring-type seats against and the first groove is provided on one end of the expanding voussoir of nearly expanding head, and first groove is along institute
State radially extending for annular seat；The main guide pad is used to being fixed on the end of the expanding voussoir, and with first groove
In the direction location fit parallel with the axis of the annular seat, radial direction and institute of the main guide pad in the annular seat
The first groove is stated to be slidably matched；
The protective cover is arranged on the other end that the annular seat deviates from the expanding voussoir, and with the annular seat and its
Corresponding position forms occlusion part, and the occlusion part is located on the bullet of the expanding head.
Preferably, above-mentioned expanding head protective device further includes secondary guide pad, wherein：
The pair guide pad is used to be arranged on the end of the annular seat, and the ring-type seats against the one of the nearly expanding voussoir
End is provided with the second groove；Second groove radially slides cooperation with the secondary guide pad in the annular seat.
Preferably, in above-mentioned expanding head protective device, the main guide pad is T-shaped guide pad, and first groove is T-shaped
Slot.
Preferably, in above-mentioned expanding head protective device, the exterior side port of first groove and second groove
Cover board is releasably provided with to block the port of first groove and the second groove.
Preferably, in above-mentioned expanding head protective device, the slot bottom of first groove is provided with perforation to the annular seat
The other end dismounting avoid holes；The main guide pad is by that can pass through the threaded connector of the dismounting avoid holes to be fixed on institute
It states on expanding voussoir.
Preferably, in above-mentioned expanding head protective device, the protective cover is cylindric protective cover.
Expanding machine, including：
As above any expanding head protective device.
The expanding head protective device of expanding machine disclosed by the invention has the advantages that：
In expanding head protective device disclosed by the invention, protective cover is arranged on annular seat, and annular seat passes through the first groove
Cooperation with main guide pad so that expanding voussoir can move entire protective device compared with protective device in expanding work, and
Expanding head protective device is not influenced to block iron scale, and then iron scale is avoided to enter between expanding voussoir and bullet
Mating surface, that is, be avoided that iron scale both causes stuck phenomenon occur.
Description of the drawings
Technical solution in order to illustrate the embodiments of the present invention more clearly or in background technology, below will be to embodiment or the back of the body
Attached drawing is briefly described needed in the description of scape technology, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of the expanding head protective device of expanding machine disclosed by the embodiments of the present invention；
Fig. 2 is the top view of part-structure in Fig. 1；
Fig. 3 is the A-A direction views of Fig. 1.
Reference sign：
100- ring-types seat, 200- protective covers, the main guide pads of 300-, 310- threaded connectors, 400- pairs guide pad, 500- expand
Footpath voussoir, 600- bullets.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example is only the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiments obtained without making creative work, should all belong to guarantor of the present invention
The scope of shield.
- 3 are please referred to Fig.1, the embodiment of the present invention discloses a kind of expanding head protective device of expanding machine.Disclosed expanding head
Protective device includes annular seat 100, protective cover 200 and main guide pad 300.
Annular seat 100 is cyclic structure, is docked at one end of the expanding voussoir 500 of expanding head.Annular seat 100 is close to expanding
The first groove is provided on one end of voussoir 500, the first groove is radially extended along annular seat 100.
Main guide pad 300 is used to be fixed on the end of expanding voussoir 500, and with the first groove in the axis with annular seat 100
The parallel direction location fit of line, main guide pad 300 are slidably matched in the radial direction of annular seat 100 with the first groove, also
It is to say, main guide pad 300 is connected with the first groove, can only cause main guide pad 300 compared with the first groove in annular seat 100
It radially slides.
Protective cover 200 is arranged on the other end that annular seat 100 deviates from expanding voussoir 500, protective cover 200 and annular seat 100
Position corresponding thereto forms occlusion part, and occlusion part is located on the bullet 600 of expanding head.
The course of work of expanding head protective device disclosed by the embodiments of the present invention is as follows：
Expanding machine implement expanding work when, bullet 600 to put in direction (i.e. towards Fig. 1 views place orientation a left side
Side direction) movement, expanding voussoir 500 radially extension movement under the action of the bullet 600 gradually put in, this process
In, main guide pad 300 moving radially away from the center of circle in annular seat 100 along the first groove so as to fulfill main guide pad 300 and is expanded
Footpath voussoir 500 is compared with the movement of annular seat 100, and annular 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 exist so that squeezing the iron scale fallen in expanding work
Bullet 600 be cannot be introduced under the barrier effect of occlusion part on the cooperation inclined-plane of expanding voussoir 500, also can not just cause the two
Generation stuck phenomenon.
After expanding work is completed, bullet 600 is towards the direction of retraction (i.e. towards the right side in orientation where Fig. 1 views
Side direction) movement, with withdrawing for bullet 600, expanding voussoir 500 is gradually fallen after rise, and during this, main guide pad 300 is along the
One groove is moved in annular seat 100 radially adjacent to center of circle direction, opposite so as to fulfill main guide pad 300 and expanding voussoir 500
In the relative movement of annular seat 100, equally, in whole process, occlusion part is still within occlusion state so that expanding work is squeezed
It is stuck with the two on the cooperation inclined-plane of expanding voussoir 500, can not also be caused to occur that the iron scale fallen cannot be introduced into bullet 600
Phenomenon.
By the above-mentioned job analysis to expanding machine, expanding head protective device disclosed by the embodiments of the present invention
In, protective cover 200 is arranged on annular seat 100, and annular seat 100 is whole by the cooperation of the first groove and main guide pad 300
In expanding work, expanding voussoir 500 can move a protective device compared with protective device, without influencing expanding head protective device
Iron scale is blocked, and then avoids iron scale into the mating surface between expanding voussoir 500 and bullet 600, it can
Avoid iron scale that the two is caused stuck phenomenon occur.
During expanding voussoir 500 is moved compared with expanding head protective device, can main guide pad 300 relatively stable
It is that expanding voussoir 500 can be compared with the premise of expanding head protective device stable motion, in order to improve that ground is slided along the first groove
The stability of movement, the first groove can set multiple, and multiple first grooves can be in discrete point of the circumferencial direction of annular seat 100
Cloth.Based on this, main guide pad 300 can also set identical quantity, coordinate correspondingly with the first groove.First groove and master
Guide pad 300 can be uniformly distributed, and assembling caused by avoiding error is difficult and moves stuck phenomenon.
In order to further improve the stability that expanding voussoir 500 is moved compared with expanding head protective device, the present invention is implemented
Expanding head protective device disclosed in example can also include secondary guide pad 400.Secondary guide pad 400 is used to be arranged on annular seat 100
End, annular seat 100 are provided with the second groove close to one end of expanding module 500, and the second groove is with secondary guide pad 400 in ring-type
Seat 100 radially slides cooperation.Cooperation with the first groove and main guide pad 300 can unlike, the second groove is led with pair
Between the two can be without location fit in the direction parallel with the axis of annular seat 100 to block 400, and only exist along annular seat
100 radially slide cooperation.Specifically, the first groove can be square groove, corresponding, secondary guide pad 400 can be square block.
In the present embodiment, main guide pad 300 can be T-shaped guide pad, and correspondingly, the first groove can be T-slot.The
One groove is usually straight slot, and main guide pad 300 can be wherein matched by one end entrance of the first groove.Certainly, dominate
Combined mechanism can also be used to block 300, is installed to by the notch of T-slot in T-slot and realizes 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 installation, the first groove and the second groove can be straight slots, and as described above, the first groove is the equal of
The slideway of main guide pad 300, the second groove are the equal of the slideway of secondary guide pad 400.During expanding, iron scale can
It can fall into the first groove and the second groove, and then between the sliding surface of main 300 and first groove of guide pad and secondary being oriented to
Between the sliding surface of 400 and second groove of block, this can influence the movement of above-mentioned slide construction.Therefore, it is preferred that the first groove and
The exterior side port of second groove is detachably provided with cover board 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 slot bottom of slot is provided with perforation to the dismounting avoid holes of the other end of annular seat 100, and main guide pad 300 is by that can pass through dismounting to keep away
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 fallen and drop into expanding voussoir 500 and circular cone 600, in vertical masonry joint
The problem of iron scale of welded tube bottom is there is usually no falling, therefore, protective cover 200 can rise at the position that iron scale falls
To the effect of blocking.Preferably, protective cover 200 is cylindric protective cover, cylindric protective cover can realize it is comprehensive block,
Play better protection effect.
Based on expanding head protective device disclosed by the embodiments of the present invention, a kind of expanding machine, institute is also disclosed in the embodiment of the present invention
Disclosed expanding machine includes the expanding head protective device as described in any in foregoing embodiments.
Herein, only emphasis describes difference with other schemes to each preferred embodiment, as long as each preferred embodiment
Do not conflict, can be combined, the embodiment formed after combination is also within scope disclosed in this specification, it is contemplated that
Text is succinct, herein with regard to no longer individually being described to combining formed embodiment.
The above is only the specific embodiment of the present invention, is made skilled artisans appreciate that or realizing this hair
It is bright.A variety of modifications of these embodiments will be apparent to one skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (7)
1. the expanding head protective device of expanding machine, which is characterized in that including annular seat (100), protective cover (200) and main guide pad
(300)；Wherein：
The ring-type seat (100) is provided with the first groove on one end of the expanding voussoir (500) of expanding head, and described first is recessed
Slot is radially extended along annular seat (100)；The main guide pad (300) is used to be fixed on the expanding voussoir (500)
End, and with first groove in the direction location fit parallel with the axis of the annular seat (100), the main guide pad
(300) it is slidably matched in the radial direction of the annular seat (100) with first groove；
The protective cover (200) is arranged on the other end that the annular seat (100) deviates from the expanding voussoir (500), and with institute
Occlusion part is collectively formed in the position corresponding to the protective cover (200) for stating annular seat (100), and the occlusion part is located at described
On the bullet (600) of expanding head.
2. expanding head protective device according to claim 1, which is characterized in that the expanding head protective device further includes pair
Guide pad (400), wherein：
The pair guide pad (400) is used to be arranged on the end of the annular seat (100), and the ring-type seat (100) is close to described
One end of expanding voussoir (500) is provided with the second groove；Second groove is with the secondary guide pad (400) in the annular seat
(100) radially slide cooperation.
3. expanding head protective device according to claim 2, which is characterized in that the main guide pad (300) is T-shaped guiding
Block, first groove are T-slot.
4. expanding head protective device according to claim 3, which is characterized in that first groove and second groove
Exterior side port be detachably provided with cover board to block the port of first groove and the second groove.
5. expanding head protective device according to claim 1, which is characterized in that the slot bottom of first groove, which is provided with, to be passed through
Pass to the dismounting avoid holes of the other end of the annular seat (100)；The main guide pad (300) is by that can pass through the dismounting to keep away
The threaded connector (310) in hole is allowed to be fixed on the expanding voussoir (500).
6. expanding head protective device according to claim 1, which is characterized in that the protective cover (200) is cylindric anti-
Shield.
7. expanding machine, which is characterized in that including：
Any expanding head protective device 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 CN106475478A (en) | 2017-03-08 |
| CN106475478B true 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 |
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| Country | Link |
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| CN (1) | CN106475478B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798955A (en) * | 1971-09-06 | 1974-03-26 | Mannesmann Roehren Werke Ag | Tube expander |
| CN201046482Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding set |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5865529A (en) * | 1981-10-16 | 1983-04-19 | Hitachi Ltd | Pipe expanding method |
| JP3467545B2 (en) * | 2000-10-17 | 2003-11-17 | オーエヌ工業株式会社 | Expansion device for thin-walled stainless steel pipe |
-
2016
- 2016-10-18 CN CN201610906527.XA patent/CN106475478B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798955A (en) * | 1971-09-06 | 1974-03-26 | Mannesmann Roehren Werke Ag | Tube expander |
| 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 |
| CN201046482Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding set |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| 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 |
|---|---|
| CN106475478A (en) | 2017-03-08 |
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