CN218015213U - Steel pipe school circle mould - Google Patents
Steel pipe school circle mould Download PDFInfo
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- CN218015213U CN218015213U CN202220384969.3U CN202220384969U CN218015213U CN 218015213 U CN218015213 U CN 218015213U CN 202220384969 U CN202220384969 U CN 202220384969U CN 218015213 U CN218015213 U CN 218015213U
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Abstract
The utility model discloses a steel pipe school circle mould, including last mould and the lower mould that can close from top to bottom, it is the block body to go up mould and lower mould, just go up mould and lower mould and constitute by arc and base, the interior concave surface of arc is the semicylindrical face, and its outer convex surface with the base links to each other through dismantling connection structure. The utility model discloses can slowly push down through last mould, to closing with the lower mould, constantly operate repeatedly, correct any deformation of steel pipe and be the positive deviation position, the circularity requirement of steel pipe in according with Q GDW 391-2015 "transmission line steel pipe tower structure design rule" until, the school circle deviation is little, the school circle is efficient, and low in cost, can realize the change of different specification moulds so that be applicable to the steel pipe school circle of different pipe diameters through the detachable connection structure between arc and the base in addition, it is easy to change, high durability and convenient use.
Description
Technical Field
The utility model relates to a steel pipe school circle mould.
Background
The welded steel pipe can be used for a transmission line pipe tower, an extra-high voltage line pipe tower, an offshore wind power pipe tower or a water conveying pipeline, a gas pipeline, a heating pipeline, an electric appliance pipeline and the like. The welded steel pipe is formed by butt welding or spiral seam welding a steel plate rolled into a pipe shape. Because of design defects of a bending machine and welding deformation, the section of the welded steel pipe is peach-shaped or flat, and therefore the welded steel pipe usually needs to be rounded.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, low in manufacturing cost, school circle deviation are little, the efficient steel pipe school circle mould of school circle.
The purpose of the utility model is realized through the following technical measures: the steel pipe roundness correction die is characterized by comprising an upper die and a lower die which can be vertically closed, wherein the upper die and the lower die are both block-shaped bodies, the upper die and the lower die are both composed of an arc-shaped plate and a base, the inner concave surface of the arc-shaped plate is a semi-cylindrical surface, and the outer convex surface of the arc-shaped plate is connected with the base through a detachable connection structure.
The utility model discloses can slowly push down through last mould, to closing with the lower mould, constantly operate repeatedly, it is the normal deviation position to rectify any deformation of steel pipe, until meeting the circularity requirement of steel pipe in Q/GDW 391-2015 "transmission line steel pipe tower structural design regulation", the school circle deviation is little, the school circle is efficient, and low in cost, and can realize the change of different specification moulds so that be applicable to the steel pipe school circle of different pipe diameters through the detachable connection structure between arc and the base, it is easy to change, high durability and convenient use.
Be equipped with the upper plate muscle on the evagination face of arc, the base includes the bottom plate and locates the lower plate muscle on the bottom plate, can dismantle connection structure is located the upper plate muscle of arc and the lower plate muscle of base on.
Go up the longitudinal extension of slab muscle, extend along the length direction of arc semicircle cylindrical surface promptly, lower slab muscle vertically and horizontally staggered, can dismantle connection structure is located the last slab muscle of arc and the longitudinal slab muscle of base.
Can dismantle connection structure dovetail and fixture block on one of the vertical slab muscle two of the last slab muscle of locating the arc and base, dovetail and fixture block longitudinal extension and the two looks adaptation, the fixture block gets into and blocks in wherein with connection arc and base from the tip opening of dovetail.
The last board muscle of arc and the vertical board muscle of base are arranged side by side respectively and are a plurality of, and vertical board muscle is connected to the horizontal board muscle of base, just height such as vertical board muscle and horizontal board muscle.
The bottom plate edge of base is equipped with and is used for assembling the rectangular shape mounting hole on the hydraulic press, and the outer pore edge of this mounting hole is described for the breach.
The height of the upper plate rib of the utility model is 40-182 mmm, and the width is 400-600 mm.
The height of the vertical plate rib of the base of the utility model is 80-100 mm, and the width is 400-600 mm.
Compared with the prior art, the utility model discloses has following effect that is showing:
the utility model discloses can slowly push down through last mould, to closing with the lower mould, constantly operate repeatedly, correct any deformation of steel pipe and be the positive deviation position, the circularity requirement of steel pipe in according with Q GDW 391-2015 "transmission line steel pipe tower structure design rule" until, the school circle deviation is little, the school circle is efficient, and low in cost, can realize the change of different specification moulds so that be applicable to the steel pipe school circle of different pipe diameters through the detachable connection structure between arc and the base in addition, it is easy to change, high durability and convenient use.
Drawings
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
FIG. 1 is a schematic structural view of an arc plate with upper plate ribs of the present invention;
fig. 2 is a front view of the base of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 2;
fig. 5 is a top view of the base of the present invention;
fig. 6 is a side view of the overall structure of the present invention.
Detailed Description
As shown in fig. 1-6, be the utility model relates to a steel pipe school circle mould, including last mould and lower mould 1 that can close from top to bottom, it is the same with lower mould 1 to go up the structure of mould, goes up mould and lower mould 1 and is the massive body, and goes up mould and lower mould 1 and constitute by arc 2 and base 3, and the interior concave surface of arc 2 is the semicylindrical face, and its outer convex surface links to each other through detachable connection structure with base 3.
Specifically, the outer convex surface of the arc-shaped plate 2 is provided with an upper plate rib 4, the base 3 comprises a bottom plate 5 and a lower plate rib arranged on the bottom plate 5, and the detachable connecting structure is arranged on the upper plate rib 4 of the arc-shaped plate 2 and the lower plate rib of the base 3. In the present embodiment, the upper plate rib 4 extends longitudinally, i.e. along the length direction of the semi-cylindrical surface of the arc-shaped plate 2, the height of the upper plate rib 4 is 40-182 mmm, and the width is 400-600 mm. The lower plate ribs are criss-cross and comprise transverse plate ribs and longitudinal plate ribs 6, the height of the longitudinal plate ribs 6 is 80-100 mm, and the width of the longitudinal plate ribs is 400-600 mm. The upper plate ribs 4 of the arc-shaped plate 2 and the longitudinal plate ribs of the base 3 are respectively arranged in parallel into a plurality of strips, the transverse plate ribs 7 are connected with the longitudinal plate ribs 6, and the longitudinal plate ribs 6 and the transverse plate ribs 7 are equal in height.
The detachable connecting structure is positioned on the upper plate rib 4 of the arc-shaped plate 2 and the longitudinal plate rib 7 of the base 3. The detachable connecting structure specifically comprises a dovetail groove 8 arranged on an upper plate rib 4 of the arc-shaped plate 2 and a fixture block 9 arranged on a longitudinal plate rib 7 of the base 3, wherein the dovetail groove 8 and the fixture block 9 longitudinally extend and are matched with each other, and the fixture block 9 enters from an opening at the end part of the dovetail groove 8 and is clamped in the dovetail groove to connect the arc-shaped plate 2 and the base 3.
The edge of the bottom plate 5 of the base 3 is provided with a long strip-shaped mounting hole 10 for mounting the base 3 on a hydraulic press, and the outer hole edge of the mounting hole 10 is in a notch shape.
The steel pipe with the specification of Q345B, the diameter of 457mm and the thickness of 10mm is used for carrying out experiments, when the outer circle is subjected to butt joint correction, the circular arc of the circle correcting die is made into an upper die and a lower die with the diameter of 477 mm. And operating a gantry type 300-ton hydraulic press to enable the edge with larger deviation of the welded steel pipe to coincide with the concave surface of the arc-shaped plate of the lower die, slowly pressing the upper die downwards, pressing the steel pipe downwards by the arc-shaped plate of the lower die until the steel pipe deforms by 2mm, loosening the steel pipe, clamping the steel pipe, and loosening the steel pipe again, repeatedly correcting any deformation of the steel pipe to be a positive deviation position until the roundness size of the steel pipe meets the requirements of Q/GDW 391-2015 structural design regulation of the steel pipe tower of the power transmission line.
Before the upper die is pressed down each time, the sizes of the steel pipe in 4 directions are measured so as to control the correction amount to meet the requirement. The dimensions were measured at 45 °,90 °,130 °,180 ° with respect to the horizontal direction, and the values obtained are shown in table 1.
(Table 1)
Through experiments, data obtained after 4 times of pressing down meet the requirements of Q/GDW 391-2015 'structural design rule of steel tube tower of power transmission line', namely, the allowable deviation of the diameter of the steel tube after roundness correction is as follows: plus or minus 1.5mm.
The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, according to the common technical knowledge and the conventional means in this field, without departing from the basic technical idea of the present invention, the present invention has another embodiment, therefore, the present invention can also make other modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (5)
1. The utility model provides a steel pipe school circle mould which characterized in that: the die comprises an upper die and a lower die which can be folded up and down, wherein the upper die and the lower die are both block-shaped bodies, the upper die and the lower die are both composed of an arc-shaped plate and a base, the inner concave surface of the arc-shaped plate is a semi-cylindrical surface, and the outer convex surface of the arc-shaped plate is connected with the base through a detachable connection structure; the outer convex surface of the arc-shaped plate is provided with an upper plate rib, the base comprises a bottom plate and a lower plate rib arranged on the bottom plate, and the detachable connecting structure is positioned on the upper plate rib of the arc-shaped plate and the lower plate rib of the base; the upper plate ribs extend longitudinally, namely extend along the length direction of the semicircular surface of the arc-shaped plate, the lower plate ribs are criss-cross, and the detachable connecting structures are positioned on the upper plate ribs of the arc-shaped plate and the longitudinal plate ribs of the base; the detachable connecting structure comprises a dovetail groove and a clamping block which are arranged on one of an upper plate rib of the arc-shaped plate and a longitudinal plate rib of the base, the dovetail groove and the clamping block extend longitudinally and are matched with each other, and the clamping block enters from an opening at the end part of the dovetail groove and is clamped in the dovetail groove to connect the arc-shaped plate and the base.
2. The steel pipe roundness correction die of claim 1, characterized in that: the upper plate ribs of the arc-shaped plate and the longitudinal plate ribs of the base are respectively arranged in parallel into a plurality of strips, the transverse plate ribs of the base are connected with the longitudinal plate ribs, and the longitudinal plate ribs and the transverse plate ribs are equal in height.
3. The steel pipe roundness correction die of claim 2, characterized in that: the edge of a bottom plate of the base is provided with a long-strip-shaped mounting hole used for being assembled on the oil press, and the outer hole edge of the mounting hole is in a notch shape.
4. The steel pipe roundness correction mold according to claim 3, characterized in that: the height of the upper plate rib is 40-182 mmm, and the width is 400-600 mm.
5. The steel pipe roundness correction mold of claim 4, characterized in that: the height of the longitudinal plate rib of the base is 80-100 mm, and the width is 400-600 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384969.3U CN218015213U (en) | 2022-02-23 | 2022-02-23 | Steel pipe school circle mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384969.3U CN218015213U (en) | 2022-02-23 | 2022-02-23 | Steel pipe school circle mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218015213U true CN218015213U (en) | 2022-12-13 |
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ID=84338650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220384969.3U Active CN218015213U (en) | 2022-02-23 | 2022-02-23 | Steel pipe school circle mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218015213U (en) |
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2022
- 2022-02-23 CN CN202220384969.3U patent/CN218015213U/en active Active
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