CN112025184A - Positioning tool for welding short ring pipe outside cylinder - Google Patents
Positioning tool for welding short ring pipe outside cylinder Download PDFInfo
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- CN112025184A CN112025184A CN202011207623.8A CN202011207623A CN112025184A CN 112025184 A CN112025184 A CN 112025184A CN 202011207623 A CN202011207623 A CN 202011207623A CN 112025184 A CN112025184 A CN 112025184A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The positioning tool for welding the short ring pipe outside the cylinder is characterized by comprising a main body bolt (4), an annular cross reinforcing positioning nut (2), a welding protection ring (9), a fastening nut (5), a welding tool support piece (3) and a height adjusting nut (11), wherein the bolt head of the main body bolt (4) is vertically downward, the main body bolt (4) is sleeved with the annular cross reinforcing positioning nut (2), and the annular cross reinforcing positioning nut (2) is screwed downward and is abutted against the bolt head of the main body bolt (4); the invention overcomes the deformation of the welded cylinder caused by inaccurate positioning of the cylinder and the short ring pipe, effectively reduces the errors of the welding perpendicularity and the embedding distance of the outer part, improves the welding precision, improves the working efficiency and reduces the potential safety hazard. The processing quality of the cylinder body is ensured, and the requirements of users are met.
Description
Technical Field
The invention discloses a positioning tool for welding a short ring pipe outside a cylinder, relates to the welding positioning of the short ring pipe of a stainless steel cylinder type container, and particularly relates to technological equipment for accurately positioning the short ring pipe welded by corner joint of a thin-wall cylinder.
Background
In the prior art of equipment manufacturing, various short circular pipes are often welded by punching holes on a cylinder body and connecting the holes at an angle. After the cylinder is perforated, the short ring pipe is inserted into the circular hole along the radial direction of the cylinder, the axial direction of the short ring pipe is kept perpendicular to the axial direction of the cylinder, and the specified height of the fillet weld is reserved. And finally, fixing the short ring pipe and the cylinder along the intersecting line by argon arc welding. Because the container is cylindrical hollow structure, the difficulty of welding external parts, especially short ring pipes and other ring structures on the inner wall is very high, and the welding arc surface of the short ring pipe is ensured to be a fixed value from the arc surface of the inner wall of the cylinder, so that an operator is difficult to perform welding operation independently in the welding operation process.
At present, a short ring pipe to be welded is manually fixed by manpower in the field operation process, and another person measures the short ring pipe by using a caliper so as to ensure that the welding distance is a fixed value. The other operator carries out welding operation, and the positioning precision and the welding precision are far from the requirements; particularly, when the short ring pipe is jointed on a thin-wall equipment cylinder, the welding of the axial perpendicularity requirement of the short ring pipe and the cylinder and the shrinkage requirement of the welding position is carried out, the constraint degree of a welding line is larger than that of a free joint, the residual stress generated after welding is more concentrated, the welding deformation is more complex and cannot be controlled. The problems of part angle deviation, low precision and the like easily occur in the welding process under the condition of no positioning tool, and the problems that personnel are easily damaged by high temperature and arc light are assisted in the cooperation process.
Disclosure of Invention
The invention aims to provide a positioning tool for welding a short ring pipe outside a cylinder, which is used for reducing the positioning error of the thin-wall cylinder corner joint welding short ring pipe in the prior art and improving the welding precision.
A cylinder external welding short ring pipe positioning tool is characterized by comprising a main body bolt 4, an annular cross reinforcing positioning nut 2, a welding protection ring 9, a fastening nut 5, a welding tool support piece 3 and a height adjusting nut 11, wherein the bolt head of the main body bolt 4 is vertically downward, the main body bolt 4 is sleeved with the annular cross reinforcing positioning nut 2, and the annular cross reinforcing positioning nut 2 is screwed downward and is abutted against the bolt head of the main body bolt 4; the annular cross reinforcing and positioning nut 2 is a cross nut and is provided with four support legs, the surfaces of the four support legs are respectively provided with 1 arc-shaped bulge 12, and the four arc-shaped bulges 12 are part of a circular ring taking the central point of the annular cross reinforcing and positioning nut 2 as the center of the circle; the outer diameter of the ring where the four arc-shaped bulges 12 are positioned is matched with the inner diameter of the circular opening 13 on the thin-wall cylinder body 1; extending a main body bolt 4 sleeved with an annular cross reinforcing and positioning nut 2 from the circular opening 13 on the thin-wall cylinder 1 from bottom to top, and attaching the outer wall of an arc-shaped bulge 12 on the upper surface of the annular cross reinforcing and positioning nut 2 to the inner wall of the circular opening 13 of the thin-wall cylinder 1;
inserting the to-be-welded short ring pipe 8 into a circular opening 13 on the thin-wall cylinder 1, enabling the lower surface of the to-be-welded short ring pipe 8 to be tightly attached to the upper surfaces of four arc-shaped protrusions 12 of the annular cross-shaped reinforcing and positioning nut 2, then sleeving a welding protection ring 9 on the main body bolt 4 and tightly attached to the upper end surface of the to-be-welded short ring pipe 8, and tightly screwing the welding protection ring 9 on the to-be-welded short ring pipe 8 through a fastening nut 5 sleeved on the main body bolt 4, so that the relative position of the to-be-welded short ring pipe 8 and the thin-wall cylinder; sleeving a welding tool support piece 3 on the upper part of the main body bolt 4, wherein the upper part of the welding tool support piece 3 is provided with an opening, the opening on the welding tool support piece 3 is sleeved on the main body bolt 4, and a height adjusting nut 11 is also sleeved on the main body bolt 4 exposed on the welding tool support piece 3; the height adjusting nut 11 is fastened on the welding tool support piece 3, so that the lower surfaces of the frames on two sides of the welding tool support piece 3 are tightly attached to the thin-wall cylinder 1.
A threaded protective sleeve 7 is sleeved on the main body bolt 4 between the annular cross-shaped reinforcing positioning nut 2 and the welding protection ring 9.
A bottom layer anti-bruise heat insulation layer 6 is arranged between the bolt head of the main body bolt 4 and the annular cross reinforcing positioning nut 2.
A washer 10 is fixed on the top of the upper sleeve of the body bolt 4 between the welding tool support 3 and the height adjusting nut 11.
The invention overcomes the deformation of the welded cylinder caused by inaccurate positioning of the cylinder and the short ring pipe, effectively reduces the errors of the welding perpendicularity and the embedding distance of the outer part, improves the welding precision, improves the working efficiency and reduces the potential safety hazard. The processing quality of the cylinder body is ensured, and the requirements of users are met.
Compared with the prior art, the invention has the following advantages:
firstly, effectively reduce the outer part and weld straightness and embedding distance error that hangs down, improve the welding precision.
And secondly, overcoming the deformation of the welded cylinder caused by inaccurate positioning of the cylinder and the short ring pipe.
And thirdly, the damage of high temperature and arc light caused by manual operation is avoided.
Drawings
FIG. 1 is a cross-sectional view showing relative positions of a thin-wall cylinder 1, a short ring pipe 8 to be welded and an annular cross reinforcing and positioning nut 2 during welding;
FIG. 2 is an assembled partial cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a ring-shaped cross-shaped reinforced positioning nut 2 according to an embodiment of the present invention;
FIG. 4 is a schematic bottom view of FIG. 3;
fig. 5 is a perspective view showing the connection, positioning and assembly of the thin-wall cylinder 1 and the short ring pipe 8 to be welded by the present invention.
The welding tool comprises a thin-wall cylinder body 1, an annular cross reinforcing positioning nut 2, a welding tool support 3, a main body bolt 4, a fastening nut 5, a bottom layer anti-bruise thermal insulation layer 6, a thread protection sleeve 7, a short ring pipe 8 to be welded, a welding protection ring 9, a top fixing gasket 10, a height adjusting nut 11, an arc-shaped bulge 12 and a circular hole 13 in the thin-wall cylinder body 1.
Detailed Description
The first embodiment is as follows:
a cylinder external welding short ring pipe positioning tool is characterized by comprising a main body bolt 4, an annular cross reinforcing positioning nut 2, a welding protection ring 9, a fastening nut 5, a welding tool support piece 3 and a height adjusting nut 11, wherein the bolt head of the main body bolt 4 is vertically downward, the main body bolt 4 is sleeved with the annular cross reinforcing positioning nut 2, and the annular cross reinforcing positioning nut 2 is screwed downward and is abutted against the bolt head of the main body bolt 4; the annular cross reinforcing and positioning nut 2 is a cross nut and is provided with four support legs, the surfaces of the four support legs are respectively provided with 1 arc-shaped bulge 12, and the four arc-shaped bulges 12 are part of a circular ring taking the central point of the annular cross reinforcing and positioning nut 2 as the center of the circle; the outer diameter of the ring where the four arc-shaped bulges 12 are positioned is matched with the inner diameter of the circular opening 13 on the thin-wall cylinder body 1; extending a main body bolt 4 sleeved with an annular cross reinforcing and positioning nut 2 from the circular opening 13 on the thin-wall cylinder 1 from bottom to top, and attaching the outer wall of an arc-shaped bulge 12 on the upper surface of the annular cross reinforcing and positioning nut 2 to the inner wall of the circular opening 13 of the thin-wall cylinder 1;
inserting the to-be-welded short ring pipe 8 into a circular opening 13 on the thin-wall cylinder 1, enabling the lower surface of the to-be-welded short ring pipe 8 to be tightly attached to the upper surfaces of four arc-shaped protrusions 12 of the annular cross-shaped reinforcing and positioning nut 2, then sleeving a welding protection ring 9 on the main body bolt 4 and tightly attached to the upper end surface of the to-be-welded short ring pipe 8, and tightly screwing the welding protection ring 9 on the to-be-welded short ring pipe 8 through a fastening nut 5 sleeved on the main body bolt 4, so that the relative position of the to-be-welded short ring pipe 8 and the thin-wall cylinder; sleeving a welding tool support piece 3 on the upper part of the main body bolt 4, wherein the upper part of the welding tool support piece 3 is provided with an opening, the opening on the welding tool support piece 3 is sleeved on the main body bolt 4, and a height adjusting nut 11 is also sleeved on the main body bolt 4 exposed on the welding tool support piece 3; the height adjusting nut 11 is fastened on the welding tool support piece 3, so that the lower surfaces of the frames on two sides of the welding tool support piece 3 are tightly attached to the thin-wall cylinder 1.
A threaded protective sleeve 7 is sleeved on the main body bolt 4 between the annular cross-shaped reinforcing positioning nut 2 and the welding protection ring 9.
A bottom layer anti-bruise heat insulation layer 6 is arranged between the bolt head of the main body bolt 4 and the annular cross reinforcing positioning nut 2.
A washer 10 is fixed on the top of the upper sleeve of the body bolt 4 between the welding tool support 3 and the height adjusting nut 11.
The invention relates to an embedded positioning device for welding a thin-wall cylinder and a small-diameter short ring pipe. The composition includes thin wall barrel 1, treats welding short ring pipe 8, specific characterized in that:
1) the connecting structure of the thin-wall cylinder 1 and the short ring pipe 8 to be welded is designed to be an embedded horse-riding type structure, and the short ring pipe 8 to be welded is provided with a cambered surface with the same curvature as the welding part of the thin-wall cylinder 1;
2) the thin-wall cylinder body 1 is perforated in a water cutting mode; the welding between the short ring pipe 8 to be welded and the opening of the thin-wall cylinder 1 adopts an angle welding mode. The invention well controls the inaccurate radial or axial positioning of the thin-wall cylinder 1 and the short ring pipe 8 to be welded, the embedding distance is not easy to control, and the processing precision and the welding quality of the equipment are ensured.
3) The connecting structure of the thin-wall cylinder 1 and the short ring pipe 8 to be welded is designed to be an embedded horse-riding type structure, and the short ring pipe 8 to be welded is provided with a cambered surface for welding with a hole on the thin-wall cylinder 1 so as to ensure that the embedding distance of the short ring pipe is 1mm in the axial direction of the cambered surface of the short ring pipe; the thin-wall cylinder body 1 is perforated in a water cutting mode; the welding between the short ring pipe 8 to be welded and the hole of the thin-wall cylinder 1 adopts an embedded angle welding mode; the welding seam between the short ring pipe 8 to be welded and the hole of the thin-wall cylinder 1 is in a penetration welding and full-penetration state.
Example two:
the outer diameter of the thin-wall cylinder 1 is 356mm, and the wall thickness is 3 mm; the preferred short ring pipe 8 to be welded has an outer diameter of 35mm and a wall thickness of 3 mm.
The annular cross reinforcing and positioning nut 2 is in a round cross structure, the maximum thickness is 10mm, and the cross reinforcing and positioning nut 2 is attached to the inner surface of the thin-wall cylinder 1; have the external diameter to be 34mm on its laminating support piece inner wall, thickness is 2mm highly for 1 mm's arc arch, and its purpose is 1mm depths of trompil of embedding thin wall barrel, realizes the axial accurate positioning of short ring canal.
The connecting pieces are two M8 hexagon socket head cap bolts and M8 nuts, the length of each connecting piece is 80 mm.
The thread protective sleeve 7 is a rubber tube with the inner diameter 0.1mm larger than the diameter of the main bolt.
The welding protection ring 9 is made of an insulating bakelite material, and the sleeving size of the welding protection ring is matched with that of the short ring pipe.
The welding tool support piece 3 is preferably in a door-shaped structure, the length is 80mm, the width is 20mm, the height is 52 mm, the thickness is 3mm, and the welding tool support piece 3 is attached to the outer surface of the thin-wall cylinder body 1;
the preferred mode of opening the thin-wall cylinder 1 in the invention adopts a water cutting mode to open the holes.
The thin-wall cylinder 1 and the short ring pipe are made of stainless steel or titanium alloy metal materials.
The connection relation of the process equipment is that a main bolt 4 is used as a central connection bearing device of the whole process equipment, a bottom layer anti-bruise heat insulation layer 6 is sleeved at the bottom of the main bolt, then an annular cross-shaped reinforced positioning nut 2 is inserted, a thread protection sleeve 7 is sleeved on the main bolt, the bolt is installed from inside to outside from a welding hole of a thin-wall cylinder body 1, a short ring pipe 8 to be welded, a welding protection ring 9, a fastening nut 5, a welding tool support 3, a top fixing gasket 10 and a height adjusting nut 11 are sequentially sleeved on the outer wall of the cylinder from bottom to top, and the connection assembly of the process equipment is completed.
The invention relates to an embedded positioning device for welding a thin-wall cylinder body 1 and a small-diameter short ring pipe, which has the working principle that:
1) firstly, a hole is formed in the thin-wall cylinder body 1, then the structure of the short ring pipe is adjusted, the connecting structure of the end bevel of the short ring pipe and the hole in the thin-wall cylinder body 1 is in a riding type structure, the short ring pipe welding plane is ensured to be at the same distance from the arc inner wall of the thin-wall cylinder body 1, and preparation is made for angle welding.
2) When the tool is used for welding a short ring pipe, a bottom layer damage-proof heat-insulating layer 6 is sleeved at the bottom of a main body bolt, an annular cross-shaped reinforcing positioning nut is arranged at the bottom of the bolt and sleeved in a threaded protective sleeve, the cross-shaped reinforcing positioning nut is in contact with the inside of a thin-wall cylinder 1, an annular structure is embedded in a welding opening, a short ring pipe 8 to be welded is sleeved in the main body bolt 4 from the outer wall of the thin-wall cylinder 1 and is in complete contact with the surface of the annular structure, and a welding protection ring 9 is sleeved and placed at the top of the short ring; and screwing a fastening nut to pre-tighten the fastening nut, installing the welding tool support piece 3 in place, and fixing the part to be welded in the thin-wall cylinder 1 by clamping the top fixing gasket 10 and the height adjusting nut 11. The height-adjusting nut 11 is adjusted to achieve effective fixing of the thin-walled cylinder 1 carrying the outer parts to be welded. When in welding, the short ring pipe and the cylinder are welded at a plurality of uniform points on the external tangent line, so that the short ring pipe and the cylinder can be fixed on the thin-wall cylinder body 1, and the rest parts of the process equipment can be welded after being sequentially dismounted.
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings.
EXAMPLE III
The present invention will now be described in detail with reference to the accompanying drawings 1 and 2:
the invention relates to a positioning tool for welding a short ring pipe 8 on a thin-wall cylinder 1 in a connecting mode, and the specific connection relation is that a main bolt 4 is used as a center connection bearing device of the whole process equipment.
Firstly, a thin-wall cylinder body 1 is perforated, secondly, the structure adjustment of a short ring pipe 8 to be welded is carried out, the connection structure of the end bevel of the short ring pipe to be welded and the hole on the cylinder body is of a riding type structure, the welding plane of the short ring pipe is ensured to be at the same distance from the arc inner wall of the cylinder body, and the preparation is made for angle welding.
Sleeving a bottom layer anti-bruise thermal insulation layer 6 at the bottom of a main body bolt, then inserting an annular cross-shaped reinforcing positioning nut 2, sleeving a thread protective sleeve 7 on the main body bolt, installing the bolt from inside to outside through a welding hole of a thin-wall cylinder 1, and sequentially sleeving a short ring pipe 8 to be welded, a welding protection ring 9, a fastening nut 5, a welding tool support 3, a top fixing gasket 10 and a height adjusting nut 11 on the outer wall of a circular opening 13 of the thin-wall cylinder 1 from bottom to top to finish the connection and assembly of the invention.
When the short ring pipe 8 is welded, the bottom layer damage-proof heat-insulating layer 6 is sleeved at the bottom of the main body bolt 4, the annular cross-shaped reinforcing positioning nut 2 is arranged on the damage-proof heat-insulating layer 6 at the bottom of the main body bolt 4 and sleeved in the thread protective sleeve, the cross-shaped reinforcing positioning nut 2 is contacted with the inside of the circular opening 13 of the thin-wall cylinder 1, the arc-shaped bulge 12 is embedded into the circular opening 13 of the thin-wall cylinder 1, and the short ring pipe 8 to be welded is sleeved in the main body bolt 4 from the outer wall of the thin-wall cylinder 1 and is completely contacted with the surface of the arc-; sleeving a welding protection ring 9 on the main body bolt 4, and placing the welding protection ring 9 on the top of the short ring pipe 8 to be welded; and screwing the fastening nut 5 to pre-tighten the fastening nut, and fixing the short ring pipe 8 to be welded in the circular opening 13 of the thin-wall cylinder 1 by clamping the top fixing gasket 10 and the height adjusting nut 11 after the welding tool supporting piece 3 is installed in place. The height adjusting nut 11 is adjusted to realize the effective fixation of the short ring pipe 8 to be welded on the cylinder body. During welding, the short ring pipe 8 to be welded and the round opening 13 of the thin-wall cylinder 1 are uniformly arranged on the tangent line, so that the short ring pipe can be fixed on the thin-wall cylinder 1, and the rest parts of the process equipment can be welded after being sequentially dismounted.
The products welded by the prior art can not meet the requirements of precision and welding quality, and one product needs more than 1 hour and 20 minutes for welding, while the whole welding process of the invention is within 20 minutes, and the welding precision and the welding quality are very good, thus completely meeting the requirements of the products. The invention overcomes the deformation of the welded cylinder caused by inaccurate positioning of the thin-wall cylinder 1 and the short ring pipe 8 to be welded, effectively reduces the welding verticality and the embedding distance error of the external part, and avoids the damage of high temperature and arc light caused by manual operation.
The key and points to be protected of the present invention include:
the utility model provides a thin wall barrel corner joint welding short ring pipe location process equipment which characterized in that: the welding fixture comprises a thin-wall cylinder body 1, an annular cross reinforcing positioning nut 2, a welding tool support piece 3, a main body bolt 4, a fastening nut 5, a bottom layer anti-bruise heat insulation layer 6, a thread protection sleeve 7, a short ring pipe 8 to be welded, a welding protection ring 9, a top fixing gasket 10 and a height adjusting nut 11.
The main body bolt 4 is a round-head inner hexagonal metal bolt which is made of stainless steel materials, and the length range of the bolt is about 80mm-10 mm.
The bottom layer damage-proof heat-insulating layer 6 is made of an insulating thermosetting rubber material.
The annular cross reinforcing and positioning nut 2 is of a round cross structure and made of stainless steel, the maximum thickness of the annular cross reinforcing and positioning nut is 10mm, the annular cross reinforcing and positioning nut 2 and the inner wall of the thin-wall cylinder 1 are of an embedded positioning structure, the size and the shape of the annular cross reinforcing and positioning nut can realize the wide and diversified application of the process equipment, the design of the process equipment for welding and positioning the external short circular tube of the cylinder is realized, and the embedded positioning and fixing of various metal plates of a flat plate type, a convex type and a concave type can be realized.
Welding frock support piece 3 is the door word structure, and stainless steel material, length are 80mm, and the width is 20mm, and highly is 52, mm thickness 3mm, and welding frock support piece 3 laminates with thin wall barrel 1 surface.
The welding protection ring 9 is made of an insulating bakelite material, and the sleeving size of the welding protection ring is matched with that of the short ring pipe.
The thread protection sleeve 7 is made of insulating thermosetting rubber materials.
The method for realizing efficient welding by using the technological equipment comprises the steps of installing an annular cross reinforcing and positioning nut 2 at the bottom of a main body bolt 4, sleeving a thread protective sleeve 7, enabling the cross reinforcing and positioning nut 2 to be in contact with the inside of a thin-wall cylinder 1, enabling four arc-shaped protrusions 12 of the reinforcing and positioning nut 2 to be embedded into a welding opening, sleeving a short ring pipe 8 to be welded into the main body bolt 4 from the outer wall of the thin-wall cylinder 1, enabling the welding arc surface to be in complete contact with the upper surface of the arc-shaped protrusions 12 of the cross reinforcing and positioning nut 2, sleeving a welding protective ring 9, and placing the short ring pipe 8 to; screwing in the fastening nut 5 to pre-tighten the fastening nut, installing the welding tool support piece 3 in place, fixing the short ring pipe 8 to be welded in the thin-wall cylinder 1 by clamping of the top fixing gasket 10 and the height adjusting nut 11, and then starting welding spot fixation; during welding, the outer cross section of the to-be-welded short ring pipe 8 tangent to the thin-wall cylinder 1 is selected to be uniform and welded at a plurality of points, the to-be-welded short ring pipe 8 can be fixed on the thin-wall cylinder 1, and finally, the parts are sequentially dismounted to complete the welding work of the rest part of the to-be-welded short ring pipe 8.
Claims (5)
1. The positioning tool for welding the short ring pipe outside the cylinder is characterized by comprising a main body bolt (4), an annular cross reinforcing positioning nut (2), a welding protection ring (9), a fastening nut (5), a welding tool support piece (3) and a height adjusting nut (11), wherein the bolt head of the main body bolt (4) is vertically downward, the main body bolt (4) is sleeved with the annular cross reinforcing positioning nut (2), and the annular cross reinforcing positioning nut (2) is screwed downward and is abutted against the bolt head of the main body bolt (4); the annular cross reinforcing and positioning nut (2) is a cross nut and is provided with four support legs, the surfaces of the four support legs are respectively provided with 1 arc-shaped bulge (12), and the four arc-shaped bulges (12) are part of a circular ring taking the central point of the annular cross reinforcing and positioning nut (2) as the center of circle; the outer diameter of a circular ring where the four arc-shaped bulges (12) are positioned is matched with the inner diameter of a circular opening (13) on the thin-wall cylinder body (1); extending a main body bolt (4) sleeved with an annular cross reinforcing and positioning nut (2) from the circular opening (13) on the thin-wall cylinder body (1) from bottom to top, and enabling the outer wall of an arc-shaped bulge (12) on the upper surface of the annular cross reinforcing and positioning nut (2) to be attached to the inner wall of the circular opening (13) of the thin-wall cylinder body (1);
inserting a to-be-welded short ring pipe (8) into a circular opening (13) on a thin-wall cylinder body (1), enabling the lower surface of the to-be-welded short ring pipe (8) to be tightly attached to the upper surfaces of four arc-shaped bulges (12) of an annular cross-shaped reinforcing and positioning nut (2), then sleeving a welding protection ring (9) on a main body bolt (4) and tightly attached to the upper end surface of the to-be-welded short ring pipe (8), and tightly screwing through a fastening nut (5) sleeved on the main body bolt (4) to enable the welding protection ring (9) to be tightly pressed on the to-be-welded short ring pipe (8), so that the relative position of the to-be-welded short ring pipe (8) and the thin-wall; sleeving a welding tool support piece (3) on the upper part of the main bolt (4), wherein the upper part of the welding tool support piece (3) is provided with an opening, the opening on the welding tool support piece (3) is sleeved on the main bolt (4), and a height adjusting nut (11) is also sleeved on the main bolt (4) exposed on the welding tool support piece (3); the height adjusting nut (11) is fastened on the welding tool supporting piece (3) to enable the lower surfaces of the frames on two sides of the welding tool supporting piece (3) to be tightly attached to the thin-wall cylinder body (1).
2. The cylinder external welding short ring pipe positioning tool according to claim 1, characterized in that a threaded protective sleeve (7) is sleeved on the main body bolt (4) between the annular cross-shaped reinforcing positioning nut (2) and the welding protective ring (9).
3. The cylinder external welding short ring pipe positioning tool according to claim 1 or 2, characterized in that a bottom layer damage-proof heat-insulating layer (6) is arranged between the bolt head of the main body bolt (4) and the annular cross-shaped reinforcing positioning nut (2).
4. The cylinder outer welding short ring pipe positioning tool according to claim 1 or 2, characterized in that a top fixing gasket (10) is sleeved on the main body bolt (4) between the welding tool support (3) and the height adjusting nut (11).
5. The cylinder external welding short ring pipe positioning tool according to claim 3, characterized in that a top fixing gasket (10) is sleeved on the main body bolt (4) between the welding tool support (3) and the height adjusting nut (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011207623.8A CN112025184B (en) | 2020-11-03 | 2020-11-03 | Positioning tool for welding short ring pipe outside cylinder |
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|---|---|---|---|
| CN202011207623.8A CN112025184B (en) | 2020-11-03 | 2020-11-03 | Positioning tool for welding short ring pipe outside cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751954A (en) * | 2021-08-19 | 2021-12-07 | 哈电集团（秦皇岛）重型装备有限公司 | Anti-collapse device and method for welding large steam generator sleeve anti-seismic block |
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| CN103506790A (en) * | 2012-06-19 | 2014-01-15 | 中国石油化工股份有限公司 | Positioning device for welding of well cementation cement head |
| CN204771358U (en) * | 2015-07-13 | 2015-11-18 | 无锡化工装备股份有限公司 | Prevent tube sheet welding deformation's frock |
| CN207681836U (en) * | 2017-12-28 | 2018-08-03 | 北京航天新风机械设备有限责任公司 | A kind of cylindrical outer bushing welding positioning process equipment |
| CN110039233A (en) * | 2018-01-17 | 2019-07-23 | 兰州兰石重型装备股份有限公司 | The positioning device and its application method of Nozzle Zone of Vessels flange |
| CN207914874U (en) * | 2018-02-09 | 2018-09-28 | 兰州兰石集团有限公司 | Pressure vessel head is with pipe connecting flange group to tooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113751954A (en) * | 2021-08-19 | 2021-12-07 | 哈电集团（秦皇岛）重型装备有限公司 | Anti-collapse device and method for welding large steam generator sleeve anti-seismic block |
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