CN207154461U - A kind of variable sizing head for tube end sizing - Google Patents
A kind of variable sizing head for tube end sizing Download PDFInfo
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- CN207154461U CN207154461U CN201720905037.8U CN201720905037U CN207154461U CN 207154461 U CN207154461 U CN 207154461U CN 201720905037 U CN201720905037 U CN 201720905037U CN 207154461 U CN207154461 U CN 207154461U
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- inner cone
- cup
- pull bar
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Abstract
A kind of variable sizing head for tube end sizing, including inner cone, transition rings, supporter, front shroud, cup and pull bar, one end of the pull bar is fastened on one end of inner cone through cup, after inner cone by snap ring, and the other end of pull bar is connected by bearing pin with oil cylinder；The horizontal end outer surface of the transition rings and supporter is affixed, and a transition rings and the combination of a supporter form harmomegathus group, multiple harmomegathus groups are set around the outside inclined-plane circular array of inner cone, and the horizontal end inner surface of supporter is slidably connected with inner cone, and gap is left between adjacent harmomegathus group；The perpendicular end of the supporter, which is slided, to be installed in cup and the affixed rear circular ring surface space formed of front shroud.By above-mentioned technical proposal, the utility model proposes a kind of reducing sizing head that can be reduced and expand, so as to realize the change of sizing amount, the sizing value of different sizing deflections is provided according to the steel pipe of different-diameter, wall thickness, finally obtains required pipe end circularity precision.
Description
Technical field
It the utility model is related to pipe end circularity, the finishing equipment of precision of a kind of seamless steel pipe, and in particular to one kind is used for
The variable sizing head of tube end sizing.
Background technology
Common apparatus on seamless steel tube production chain can not meet the linearity on some steel pipe heads and the precision of circularity
It is required that part producer is configured with pipe end sizing apparatus for this.But due to equipment design when existing deficiency, in reality
Expected tube end sizing required precision can not be obtained during use.When thickness of steel pipe is thicker or the intersity limitation of material it is higher after sizing when
Occur that difficult and Sizing precision occurs to reply over time, do not reach expected result.
The sizing head that present pipe end sizing mill uses is the diameter head more bigger than pipe diameter with certain cone
The cylinder of degree, need first to clamp steel pipe body under oil cylinder force in the recruitment of body position in operation, then in steel pipe
Head is very big using an active force and solid cylindrical is pushed into pipe diameter by the controllable hydraulic cylinder of stroke, is squeezed by sizing head
Enter deforming to obtain required circularity precision for steel pipe head.Due to the external diameter of entity sizing head and the numerical difference of pipe diameter
Away from very little, caused sizing deflection is unable to reach correction circularity required precision sometimes.And sizing head is entering in steel pipe
Larger frictional force and relative motion during footpath be present, when smearing lubricant starvation on sizing head and steel pipe inner wall on steel pipe inner wall
Cut can be produced, detrimental effect is brought to steel pipe.
In view of existing pipe end sizing apparatus has above mentioned problem, manufacturing enterprise needs one kind to provide according to steel
The sizing head that the reducing value that pipe is actually needed can change, sizing head can be easily accessible pipe diameter and will not scratch inwall steel
Pipe, conveniently operation it can either ensure Sizing precision requirement.Therefore how creating a kind of tube end sizing head can either complete pair
Sizing head is enough easily put into pipe diameter and will not draw steel pipe inner wall by the expanding amount and can of the required diameter of plug
Wound, and possess efficient sizing head, turn into currently used unit and improved target is sought by manufacturer.
After the design to various structures, advanced development and test comparison, the pattern for the product that finalized the design almost.Protecting
Hold existing pipe end sizing mill fuselage and force oil cylinder it is constant in the case of, the structure type by changing sizing head reaches realization
Purpose that is easy to operate and improving Sizing precision, so as to eliminate or reduce the defects of existing structure is present.The utility model people's base
Abundant for many years practical experience and professional knowledge are manufactured in being engaged in such product design, and coordinates the utilization of scientific principle, is actively subject to
Research and innovation, to found a kind of tube end sizing head of new structure, improving the solid sizing head of existing fixation, to be changed to entity more
The sizing header structure of flap-type reducing, it is set to have more practicality.By constantly research, and by studying sample repeatedly and changing
After entering, the utility model having practical value is created finally.
The content of the invention
The purpose of this utility model is, the problem of overcoming the sizing head of existing pipe end sizing mill to exist, and provides a kind of
The variable sizing head of new structure, by traditional unalterable sizing head of diameter be changed to diameter can reduce and expand can
Reducing sizing head, so as to realize the change of sizing amount, deformed as different materials and diameter, the steel pipe of wall thickness provide different sizings
The sizing value of amount, finally obtain required pipe end circularity and precision.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.It is new according to this practicality
Type propose a kind of variable sizing head for tube end sizing, including inner cone, transition rings, supporter, front shroud, cup and
Pull bar, wherein inner cone are more faceted pebble cones, and supporter is in L types；One end of pull bar passes through snap ring after passing through cup, inner cone
One end of inner cone is fastened on, the other end of pull bar is connected by bearing pin with oil cylinder.The horizontal end outer surface of transition rings and supporter
It is affixed, and the combination of a transition rings and a supporter forms harmomegathus group, multiple harmomegathus groups surround the outside inclined-plane of inner cone
Circular array is set, and the horizontal end inner surface of supporter is slidably connected with inner cone, and gap is left between adjacent harmomegathus group；
The perpendicular end of the supporter, which is slided, to be installed in cup and the affixed rear circular ring surface space formed of front shroud.
Preferably, inner cone is provided with dovetail key, the horizontal end inner surface of supporter offers dovetail groove, the inner cone and branch
Support body forms sliding connection by dovetail key and dovetail groove.
The second lining is provided with preferably, being provided between the perpendicular end of each supporter and front shroud between the first liner plate and cup
Plate, wherein the first liner plate and front shroud are affixed, the second liner plate and cup are affixed.
Preferably, being equiped with copper sheathing between cup and pull bar, and gap is left between the pull bar and copper sheathing.
Preferably, transition rings are affixed by bolt with supporter.
Preferably, front shroud is affixed by bolt with cup.
Preferably, cup, oil cylinder are respectively installed in frame.
By above-mentioned technical proposal, the utility model proposes a kind of variable sizing head for pipe end sizing lead to
Cross and change inner cone displacement in the horizontal direction, using the proportionate relationship on inclined-plane can be supported body front shroud with
Formed after cup is affixed in circular ring surface space and move radially distance, so as to by controlling the displacement of inner cone to realize pipe
The change of sizing amount is held, is variable sizing amount by past fixed sizing quantitative change, disclosure satisfy that the use demand of more products.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technology of the present utility model
Means, and being practiced according to the content of specification, and to allow above and other purpose of the present utility model, feature and excellent
Point can become apparent, and below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is schematic cross-sectional view of the present utility model.
Fig. 2 is schematic side view of the present utility model.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below
With reference to accompanying drawing and preferred embodiment, to according to the utility model proposes a kind of variable sizing head for tube end sizing its have
Body embodiment, structure, feature and its effect, describe in detail as after.
As depicted in figs. 1 and 2, a kind of variable sizing head for tube end sizing, including inner cone 2, transition rings 3, branch
Support body 4, front shroud 5, cup 9 and pull bar 11, wherein inner cone 2 are just more faceted pebble cones, and transition rings 3 are in fan annular, supporter
It is L-shaped.
One end of pull bar 2 is fastened on one end of inner cone 2 through cup 9, after inner cone 2 by snap ring 1, pull bar 11 it is another
One end is connected by bearing pin 12 with the piston rod of oil cylinder 13；
The transition rings 3 and the horizontal end outer surface of supporter 4 are affixed, and the combination of a transition rings 3 and a supporter 4
Harmomegathus group 6 is formed, multiple harmomegathus groups 6 are set around the outside inclined-plane circular array of inner cone 2, and harmomegathus group 6 passes through supporter 4
Horizontal end inner surface can realize and be slidably connected with inner cone 2, and leave equal gap between adjacent harmomegathus group 6；The branch
The perpendicular end of support body 4, which is slided, to be installed in cup 9 and the affixed rear circular ring surface space formed of front shroud 5.As shown in Fig. 2 tool
Body, inner cone 2 is positive hexagonal pyramid face body, then corresponding supporter 4 and the quantity of transition rings 3 are also six.
Further, the conical surface of inner cone 2 is provided with dovetail key, and the horizontal end inner surface of supporter 4 offers dovetail groove, then
The inner cone 2 and supporter 4 are made up of dovetail key and dovetail groove and are slidably connected, so as to supporter 4 can keep with it is interior
The relativeness of cone 2 is without separating.
Further, in order to reduce the friction between supporter 4 and front shroud 5, cup 9, at the perpendicular end of each supporter 4
It is provided between front shroud 5 and the second liner plate 8 is provided between first liner plate 7 and cup 9, wherein the first liner plate 7 and front shroud 5 is solid
Connect, the second liner plate 8 and cup 9 are affixed.More preferably, the first liner plate 6 and the second liner plate 7 are made using copper material.
Further, copper sheathing 10 is equiped between cup 9 and pull bar 11, and gap is left between pull bar 11 and copper sheathing 10,
The gap is advantageous to the slip of pull bar 11, and another aspect copper sheathing 10 also can be as the intermediate supports point of pull bar 11.
Further, transition rings 3 and supporter 4 are affixed by bolt.
Further, front shroud 5 and cup 9 are affixed by bolt.
Further, cup 9, oil cylinder 13 are respectively installed in the frame 14 of sizing mill.
Specifically, operation principle of the present utility model is as described below：
, then not only can will when moving because gradient be present on the inclined-plane contact in inner cone 2 and supporter 4, slided
The larger horizontal displacement of inner cone 2 is converted into 4 less radial displacement of supporter, while will act on horizontal force on inner cone 2
The expanding power of the change pipe diameter of supporter 4 is converted into by inclined-plane.It is fixed in the transition rings 3 of fan annular on supporter 4
As the replacing part among supporter 4 and steel pipe, to adapt to the change of pipe diameter, more commutation is only needed when pipe diameter changes
Answer the transition rings 3 of specification.
Supporter 4 makes the shape similar to L-type, and its perpendicular end is used for limiting when inner cone 2 carries out transverse shifting to branch
The limitation of the transverse shifting of support body 4, supporter 4 is only allowed to make the change with occurring during 2 transverse shifting of inner cone in vertical direction
Caused movement, i.e., the diametric(al) that circular ring surface can only be formed in front shroud 5 and cup 9 produces change, so as to final
Change the diameter value of the transition rings 3 contacted with pipe diameter.It is further right and the first liner plate 7 and the second liner plate 8 are made of copper material
The perpendicular end progress of supporter 4 is spacing, and reduces the frictional force with the perpendicular end of supporter.And in order to ensure pipe diameter after sizing deformation
Numerical value, the external diameter value of transition rings 3 is the maximum distortion diameter value needed for plug value.
As shown in Fig. 2 harmomegathus group 6 is circumferentially divided on inner cone and between adjacent harmomegathus group 6 in circumferencial direction
Leave equal gap, its act on be when inner cone 2 is moved to the left, can by several angularly annular array set mistake
Cross when the circle that the extrados of ring 3 is formed is less than pipe diameter and do not produce interference.In order to be obtained to the steel tube end part being corrected
Diametric sizing effect, the external diameter of sizing head is larger than the internal diameter equal to steel pipe, but wants to enter in sizing head non-resistance
Need to reduce its diameter when entering pipe end, so as to need to leave gap between adjacent harmomegathus group of the present utility model, can including
Cone 2 is less than pipe diameter to the cylinder diameter that transition rings when moving to left 3 are formed.When inner cone 2 moves right, inner cone
2 are moved by slope driving supporter 4, and the perpendicular end of supporter 4 is under the first liner plate 7 and the limitation of the second liner plate 8 along between liner plate
The movement of sizing head enlarged-diameter is done, while ensures supporter 4 in diametric(al) kinematic accuracy.
Workflow of the present utility model is as described below：
Such as Fig. 1, when oil cylinder 13 makes thrust and motion to the left, pull bar 11 and inner cone 2 are simultaneously to left movement, support
Body 4 has movement tendency to the left under the dovetail groove constraint of inner cone 2, but in front shroud 5, the first liner plate 7, the second liner plate 8, cup
Under the limitation in circular ring surface spaces that seat 9 is formed, the direction reduced along diameter can only be made and moved, then now some annulars
The cylinder external diameter that the transition rings 3 of array form reduces, and transition rings 3 is separated with steel pipe inner wall, and then make sizing head out of steel pipe
Remove.When oil cylinder 13 makes pulling to the right, pull bar 11 and snap ring 1 promote inner cone 2 to move right simultaneously, and supporter 4 exists
Inner cone 2 has the trend that moves of direction for moving right and increasing along diameter under promoting, but front shroud 5, the first liner plate 7,
Under the circular ring surface space limitation that second liner plate 8, cup 9 are formed, it can only make along the direction of diameter increase and move.Then this
When annular array the cylinder external diameter expansion that is formed of transition rings 3 become big, specifically needed according to actual come to pipe end internal diameter
Circularity is corrected and it carried out expanding.
It is described above, only it is preferred embodiment of the present utility model, any person skilled in the art is not
Depart from the range of technical solutions of the utility model, according to the technical essence of the utility model to any letter made for any of the above embodiments
Single modification, equivalent variations and modification, in the range of still falling within technical solutions of the utility model.
Claims (7)
1. a kind of variable sizing head for tube end sizing, it is characterised in that including inner cone (2), transition rings (3), supporter
(4), front shroud (5), cup (9) and pull bar (11), wherein inner cone (2) are just more faceted pebble cones, and supporter (4) is L-shaped；
One end of the pull bar (11) is fastened on the one of inner cone (2) by snap ring (1) after passing through cup (9), inner cone (2)
End, the other end of pull bar (11) are connected by bearing pin (12) with oil cylinder (13)；
The transition rings (3) and the horizontal end outer surface of supporter (4) are affixed, and transition rings (3) and supporter (4)
Combination forms harmomegathus group (6), and multiple harmomegathus groups (6) are set around the outside inclined-plane circular array of inner cone (2), and supporter
(4) horizontal end inner surface is slidably connected with inner cone (2), and gap is left between adjacent harmomegathus group (6)；The supporter (4)
Perpendicular end slide and be installed in cup (9) and front shroud (5) is affixed afterwards in the circular ring surface space that is formed.
2. sizing head according to claim 1, it is characterised in that the inner cone (2) is provided with dovetail key, supporter (4)
Horizontal end inner surface offer dovetail groove, the inner cone (2) and supporter (4) are made up of dovetail key and dovetail groove and are slidably matched
Connection.
3. sizing head according to claim 1, it is characterised in that the perpendicular end of each supporter (4) and front shroud (5)
Between be provided with and be provided with the second liner plate (8) between the first liner plate (7) and cup (9), wherein the first liner plate (7) and front shroud (5) are consolidated
Connect, the second liner plate (8) and cup (9) are affixed.
4. sizing head according to claim 1, it is characterised in that be equiped with copper sheathing between the cup (9) and pull bar (11)
(10), and between the pull bar (11) and copper sheathing (10) gap is left.
5. sizing head according to claim 1, it is characterised in that the transition rings (3) are consolidated with supporter (4) by bolt
Connect.
6. sizing head according to claim 1, it is characterised in that the front shroud (5) and cup (9) are affixed by bolt.
7. sizing head according to claim 1, it is characterised in that the cup (9), oil cylinder (13) are respectively installed in frame
(14) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720905037.8U CN207154461U (en) | 2017-07-24 | 2017-07-24 | A kind of variable sizing head for tube end sizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720905037.8U CN207154461U (en) | 2017-07-24 | 2017-07-24 | A kind of variable sizing head for tube end sizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207154461U true CN207154461U (en) | 2018-03-30 |
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ID=61714297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720905037.8U Active CN207154461U (en) | 2017-07-24 | 2017-07-24 | A kind of variable sizing head for tube end sizing |
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| Country | Link |
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| CN (1) | CN207154461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633089A (en) * | 2020-06-28 | 2020-09-08 | 浙江金马逊机械有限公司 | Shaping device for rounding pipe end of metal conduit and inner support assembly thereof |
| CN111633088A (en) * | 2020-06-28 | 2020-09-08 | 浙江金马逊机械有限公司 | Shaping device for rounding pipe end of metal conduit |
-
2017
- 2017-07-24 CN CN201720905037.8U patent/CN207154461U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633089A (en) * | 2020-06-28 | 2020-09-08 | 浙江金马逊机械有限公司 | Shaping device for rounding pipe end of metal conduit and inner support assembly thereof |
| CN111633088A (en) * | 2020-06-28 | 2020-09-08 | 浙江金马逊机械有限公司 | Shaping device for rounding pipe end of metal conduit |
| CN111633089B (en) * | 2020-06-28 | 2022-04-15 | 浙江金马逊机械有限公司 | Shaping device for rounding pipe end of metal conduit and inner support assembly thereof |
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