CN111940982A - Novel flange welding tool and using method - Google Patents
Novel flange welding tool and using method Download PDFInfo
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- CN111940982A CN111940982A CN202010969629.2A CN202010969629A CN111940982A CN 111940982 A CN111940982 A CN 111940982A CN 202010969629 A CN202010969629 A CN 202010969629A CN 111940982 A CN111940982 A CN 111940982A
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- 238000003466 welding Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 3
- 238000005457 optimization Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a novel flange welding tool and a using method thereof, wherein the novel flange welding tool comprises a support body provided with a middle through hole, a lead screw penetrating through the middle through hole, a limiting device limiting the axial movement of the lead screw, and a flange plate fixedly arranged at the outer end of the support body, wherein the flange plate is provided with a bolt hole corresponding to a connecting hole of a flange to be welded; the supporting body is provided with a positioning table which is radially jacked to the joint of the flange to be welded and the cylinder barrel, and a plurality of tensioning blocks which are circumferentially distributed and are in sliding connection with the supporting body along the radial direction, and a taper sleeve of which the inner hole is connected with the screw rod through threads is arranged in the middle through hole. The positioning table is used for supporting the joint of the cylinder barrel and the flange to be welded, so that the stability of a workpiece during welding is improved; make the cylinder and treat the inner wall parallel and level of welded flange through setting up the location platform, removed the process of welding back turning location boss, improved the operating efficiency by a wide margin, fix a position more accurately moreover, high temperature resistant, coefficient of thermal expansion is little, repeatedly usable, easy dismounting.
Description
Technical Field
The invention relates to the field of welding tools, in particular to a novel flange welding tool suitable for welding a cylinder barrel and a flange and a using method.
Background
Flanges are common connecting parts and are generally welded to the ends of shaft or cylinder workpieces to facilitate the connection of the workpieces. At present, when a flange is welded at the end part of a cylinder barrel, in order to ensure that the flange and the cylinder barrel have better coaxiality, a positioning fit seam allowance (shown in figure 1) is usually reserved when the flange is machined, a positioning boss at the seam allowance is turned off after welding is completed, then an inner hole of the cylinder barrel flange is bored in a rolling manner (shown in figure 2), and the positioning boss is located inside a workpiece, so that turning is very inconvenient, and the machining efficiency is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel flange welding tool, which omits the process of turning a positioning boss and greatly improves the production efficiency.
The invention is realized by the following technical scheme, and provides a novel flange welding tool which comprises a support body provided with a middle through hole, a lead screw penetrating through the middle through hole, a limiting device limiting the axial movement of the lead screw, and a flange plate fixedly arranged at the outer end of the support body, wherein the flange plate is provided with a bolt hole corresponding to a connecting hole of a flange to be welded; the support body is provided with a positioning table which is radially jacked to the joint of the flange to be welded and the cylinder barrel, and a plurality of tensioning blocks which are circumferentially distributed and are in sliding connection with the support body along the radial direction, a taper sleeve is arranged in the middle through hole, an inner hole of the taper sleeve is connected with a screw rod through threads, the outer surface of the taper sleeve is a conical surface, one end of the taper sleeve, which faces the flange plate, is a small-diameter end, and one end of the tensioning block, which faces the screw rod, is provided.
When the tool is used, the cylinder barrel and the flange to be welded are connected through the bolt penetrating through the bolt hole, the cylinder barrel and the flange to be welded are sleeved on the positioning table, the inner wall of the cylinder barrel and the inner wall of the flange to be welded are parallel and level through the arranged positioning table, the rolling and boring processing amount is reduced, the taper sleeve is axially moved by utilizing the principle of the screw nut, the tensioning block is jacked against the inner wall of the cylinder barrel, the cylinder barrel is fixed, and the coaxiality of the cylinder barrel and the flange to be welded is improved; the seam is arranged at the positioning table, so that the welding stability is improved, and the quality of the welding seam is ensured.
As optimization, the two sides of the positioning table along the axial direction are both provided with tensioning blocks. This optimization scheme has realized tensioning when treating the welded flange to the cylinder and has improved the team effect through all setting up the tight piece that rises in locating table both sides.
As optimization, stop device establishes on the lead screw and is located the spacing gasket that the first spacing platform was kept away from to the taper sleeve including setting firmly the first spacing platform in lead screw inner and cover, and the overall dimension of first spacing platform is greater than the taper sleeve internal diameter, spacing gasket and supporter rigid coupling, set firmly the second spacing platform that is located spacing gasket and keeps away from one side of the taper sleeve on the lead screw, the external diameter of second spacing platform is greater than the internal diameter of spacing gasket. This stop device of optimization scheme simple structure, the cost of manufacture is low, and through first spacing platform restriction lead screw to flange dish side emergence axial displacement, through spacing gasket restriction lead screw to cylinder side emergence axial displacement to realized the two-way restriction to the lead screw, made the taper sleeve along axial displacement when it rotates.
As optimization, an anti-abrasion gasket sleeved on the lead screw is further arranged between the first limiting table and the taper sleeve. This optimization scheme is through setting up the abrasionproof gasket, causes mutual wearing and tearing when avoiding first spacing platform and taper sleeve to take place relative rotation, has prolonged life.
Preferably, the outer end of the screw rod is provided with a handle. This optimization scheme is through setting up the handle, conveniently rotates the operation to the lead screw to improve the operating efficiency.
This scheme still provides a novel flange welding frock's application method, includes following step:
1. the flange to be welded is connected with the flange plate through bolts penetrating through the bolt holes, so that one end, far away from the flange plate, of the flange to be welded extends to the positioning table, the overlapping length of the flange to be welded and the positioning table is not more than 1/2 of the axial length of the positioning table, enough sleeving length for the cylinder barrel is reserved, and the welding seam supporting effect is better;
2. sleeving a cylinder barrel to be welded on a positioning table, and jacking the cylinder barrel to a flange to be welded;
3. rotating the lead screw, enabling the taper sleeve to move towards the side of the flange plate along the axial direction by utilizing the thread effect of the lead screw and the taper sleeve, pushing the tensioning block to move along the radial direction by utilizing the conical surface, enabling the tensioning block to push against the inner walls of the cylinder barrel and the flange to be welded, and then welding the cylinder barrel and the flange to be welded;
4. after welding is finished, the screw rod is rotated reversely, the taper sleeve is moved away from the support body through the thread action of the screw rod and the taper sleeve, and the jacking action on the tensioning block is lost;
5. and (4) dismounting the connecting bolt of the flange to be welded and the flange plate, and drawing out the welding tool from the flange to be welded.
The invention has the beneficial effects that: the positioning table is used for supporting the joint of the cylinder barrel and the flange to be welded, and the cylinder barrel is tensioned and fixed through the tensioning block, so that the stability of a workpiece during welding is improved; make the cylinder and treat the inner wall parallel and level of welded flange through setting up the location platform, removed the process of welding back turning location boss, improved the operating efficiency by a wide margin, fix a position more accurately moreover, high temperature resistant, coefficient of thermal expansion is little, repeatedly usable, easy dismounting.
Drawings
FIG. 1 is a schematic diagram of a cylinder and a flange assembly in the prior art;
FIG. 2 is a schematic view of a prior art with a positioning boss turned off;
FIG. 3 is a schematic structural view of the present invention;
shown in the figure:
1. the device comprises a cylinder barrel, 2, a first limiting table, 3, a positioning table, 4, flanges to be welded, 5, a supporting body, 6, a flange plate, 7, a handle, 8, a limiting gasket, 9, a tensioning block, 10, a taper sleeve, 11 and a lead screw.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 3, the novel flange welding tool comprises a support body 5 provided with a middle through hole, a lead screw 11 penetrating through the middle through hole, a limiting device limiting axial movement of the lead screw, and a flange plate 6 fixedly arranged at the outer end of the support body, wherein a bolt hole corresponding to a flange connecting hole to be welded is formed in the flange plate 6, and a handle 7 is installed at the outer end of the lead screw.
The supporting body is provided with positioning tables 3 which are radially jacked to the joint of the flange 4 to be welded and the cylinder barrel 1, one end of the cylinder barrel, which is in contact with the flange to be welded, is sleeved on the positioning tables, the number of the positioning tables is more than or equal to three, the positioning tables are uniformly distributed along the circumferential direction, and the outer surfaces of the positioning tables are cambered surfaces matched with the inner walls of the cylinder barrel and the flange to be welded; the supporting body is also provided with a plurality of radial holes which are uniformly distributed along the circumferential direction, and tensioning blocks 9 which are connected with the supporting body in a sliding way along the radial direction are arranged in the radial holes in a sliding way.
A taper sleeve 10 is arranged in the middle through hole, an inner hole of the taper sleeve 10 is connected with the lead screw through threads, the outer surface of the taper sleeve is a conical surface, one end of the taper sleeve, facing the flange plate, is a small-diameter end, and one end, facing the lead screw 11, of the tensioning block 9 is provided with an inclined surface matched with the conical surface. In order to improve the tensioning effect, the tensioning blocks 9 are arranged on the two axial sides of the positioning table 3.
The limiting device comprises a first limiting table 2 fixedly arranged at the inner end of the screw rod and a limiting gasket 8 which is sleeved on the screw rod and located on one side, far away from the first limiting table, of the taper sleeve, the overall size of the first limiting table 2 is larger than the inner diameter of the taper sleeve, the limiting gasket is fixedly connected with the supporting body, a second limiting table which is located on one side, far away from the taper sleeve, of the limiting gasket is fixedly arranged on the screw rod, and the outer diameter of the second limiting table is larger than the inner diameter of the limiting gasket. In order to avoid the mutual abrasion between the first limiting table and the taper sleeve when the screw rod rotates, an abrasion-proof gasket sleeved on the screw rod is further arranged between the first limiting table and the taper sleeve.
The use method of the novel flange welding tool comprises the following steps:
1. connecting the flange to be welded with the flange plate through bolts penetrating through the bolt holes, extending one end, far away from the flange plate, of the flange to be welded to the positioning table, and enabling the overlapping length of the flange to be welded and the positioning table to be not more than 1/2 of the axial length of the positioning table;
2. sleeving a cylinder barrel to be welded on a positioning table, and jacking the cylinder barrel to a flange to be welded;
3. rotating the lead screw, enabling the taper sleeve to move towards the side of the flange plate along the axial direction by utilizing the thread effect of the lead screw and the taper sleeve, pushing the tensioning block to move along the radial direction by utilizing the conical surface, enabling the tensioning block to push against the inner walls of the cylinder barrel and the flange to be welded, and then welding the cylinder barrel and the flange to be welded;
4. after welding is finished, the screw rod is rotated reversely, the taper sleeve is moved away from the support body through the thread action of the screw rod and the taper sleeve, and the jacking action on the tensioning block is lost;
5. and (4) dismounting the connecting bolt of the flange to be welded and the flange plate, and drawing out the welding tool from the flange to be welded.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a novel flange welding frock which characterized in that: the welding device comprises a support body (5) provided with a middle through hole, a lead screw (11) penetrating through the middle through hole, a limiting device limiting the axial movement of the lead screw, and a flange plate (6) fixedly arranged at the outer end of the support body, wherein the flange plate (6) is provided with a bolt hole corresponding to a connecting hole of a flange to be welded;
the support body is provided with a positioning table (3) which is arranged along the radial direction from the top to the joint of the flange to be welded and the cylinder barrel, and a plurality of tensioning blocks (9) which are distributed along the circumferential direction and are in sliding connection with the support body along the radial direction, a taper sleeve (10) with an inner hole connected with a screw rod through a thread is arranged in the middle through hole, the outer surface of the taper sleeve is a conical surface, one end of the taper sleeve, which faces the flange plate, is a small-diameter end, and one end of each tensioning block (9), which faces the screw rod.
2. The novel flange welding tool of claim 1, characterized in that: and tensioning blocks (9) are arranged on the two sides of the positioning table (3) along the axial direction.
3. The novel flange welding tool of claim 1, characterized in that: the limiting device comprises a first limiting table (2) fixedly arranged at the inner end of the screw rod and a limiting gasket (8) which is sleeved on the screw rod and located on one side, far away from the first limiting table, of the taper sleeve, the overall size of the first limiting table (2) is larger than the inner diameter of the taper sleeve, the limiting gasket is fixedly connected with the supporting body, a second limiting table which is located on one side, far away from the taper sleeve, of the limiting gasket is fixedly arranged on the screw rod, and the outer diameter of the second limiting table is larger than the inner diameter of the limiting gasket.
4. The novel flange welding tool of claim 3, characterized in that: an anti-abrasion gasket sleeved on the lead screw is further arranged between the first limiting table and the taper sleeve.
5. The novel flange welding tool of claim 1, characterized in that: the outer end of the screw rod is provided with a handle (7).
6. A use method of the novel flange welding tool of any one of claims 1 to 5 is characterized by comprising the following steps:
(1) connecting the flange to be welded with the flange plate through bolts penetrating through the bolt holes, extending one end, far away from the flange plate, of the flange to be welded to the positioning table, and enabling the overlapping length of the flange to be welded and the positioning table to be not more than 1/2 of the axial length of the positioning table;
(2) sleeving a cylinder barrel to be welded on a positioning table, and jacking the cylinder barrel to a flange to be welded;
(3) rotating the lead screw, enabling the taper sleeve to move towards the side of the flange plate along the axial direction by utilizing the thread effect of the lead screw and the taper sleeve, pushing the tensioning block to move along the radial direction by utilizing the conical surface, enabling the tensioning block to push against the inner walls of the cylinder barrel and the flange to be welded, and then welding the cylinder barrel and the flange to be welded;
(4) after welding is finished, the screw rod is rotated reversely, the taper sleeve is moved away from the support body through the thread action of the screw rod and the taper sleeve, and the jacking action on the tensioning block is lost;
(5) and (4) dismounting the connecting bolt of the flange to be welded and the flange plate, and drawing out the welding tool from the flange to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969629.2A CN111940982A (en) | 2020-09-15 | 2020-09-15 | Novel flange welding tool and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969629.2A CN111940982A (en) | 2020-09-15 | 2020-09-15 | Novel flange welding tool and using method |
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| Publication Number | Publication Date |
|---|---|
| CN111940982A true CN111940982A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010969629.2A Pending CN111940982A (en) | 2020-09-15 | 2020-09-15 | Novel flange welding tool and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846827A (en) * | 2021-11-04 | 2021-12-28 | 中铁三局集团华东建设有限公司 | Jacking platform suitable for foundation ditch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606831Y (en) * | 2003-04-26 | 2004-03-17 | 大庆油田建设集团 | Slide block type pipeline flange mouth connector |
| CN104588941A (en) * | 2014-11-19 | 2015-05-06 | 广西大学 | Steel tube flange welding positioning clamp |
| CN108050323A (en) * | 2018-01-12 | 2018-05-18 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of band footpath flange and take over Dock With Precision Position device and its installation and application method |
| CN207777832U (en) * | 2018-01-12 | 2018-08-28 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of band diameter flange and take over Dock With Precision Position device |
| CN212443957U (en) * | 2020-09-15 | 2021-02-02 | 山东锐驰机械有限公司 | Novel flange welding tool |
-
2020
- 2020-09-15 CN CN202010969629.2A patent/CN111940982A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606831Y (en) * | 2003-04-26 | 2004-03-17 | 大庆油田建设集团 | Slide block type pipeline flange mouth connector |
| CN104588941A (en) * | 2014-11-19 | 2015-05-06 | 广西大学 | Steel tube flange welding positioning clamp |
| CN108050323A (en) * | 2018-01-12 | 2018-05-18 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of band footpath flange and take over Dock With Precision Position device and its installation and application method |
| CN207777832U (en) * | 2018-01-12 | 2018-08-28 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of band diameter flange and take over Dock With Precision Position device |
| CN212443957U (en) * | 2020-09-15 | 2021-02-02 | 山东锐驰机械有限公司 | Novel flange welding tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846827A (en) * | 2021-11-04 | 2021-12-28 | 中铁三局集团华东建设有限公司 | Jacking platform suitable for foundation ditch |
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