CN210997000U - Automatic submerged arc welding device for pipe fitting inner seam - Google Patents
Automatic submerged arc welding device for pipe fitting inner seam Download PDFInfo
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- CN210997000U CN210997000U CN201922147083.8U CN201922147083U CN210997000U CN 210997000 U CN210997000 U CN 210997000U CN 201922147083 U CN201922147083 U CN 201922147083U CN 210997000 U CN210997000 U CN 210997000U
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Abstract
The utility model discloses an automatic submerged arc welding device of pipe fitting inseam belongs to metal welding technical field. The automatic submerged arc welding device for the inner seam of the pipe fitting comprises a welding trolley, a guide rail, a lifting mechanism, a welding arm and a guide wheel mechanism, wherein the guide rail is arranged at the bottom of the welding trolley, and the welding trolley can move along the guide rail; one end of the welding arm is hinged with the lifting mechanism, and the other end of the welding arm is fixedly connected with a welding gun; the guide wheel mechanism is fixedly arranged at the bottom of the welding arm. The utility model provides a pair of automatic submerged arc welding set of pipe fitting inner joint sets up guide wheel mechanism through the bottom at the welding arm, when welding pipe fitting welding seam, guide wheel mechanism can automatic machine tracking welding seam and provide the support to the welding arm, avoids the welding arm flagging and leads to rigidity not enough to can make the cross sectional dimension who welds the arm reduce by a wide margin, thereby can be to the inner straight seam welding of diameter 300 mm's tubule footpath work piece.
Description
Technical Field
The utility model relates to a metal welding technical field, in particular to automatic submerged arc welding device of pipe fitting inseam.
Background
At present, the small-pipe-diameter inner longitudinal seam submerged-arc welding in the market is mainly realized by two special machines, one is an inner straight seam welding manipulator formed by transforming a manipulator, and the other is a special fixed arm type inner longitudinal seam welding machine.
When the inner straight seam welding operation machine formed by transforming the operation machine is used for inner seam welding, the workpiece is fixed, and the welding gun is driven to move along the welding seam through the expansion of the welding arm, so that the inner straight seam welding is realized. However, the manipulator is suitable for short workpieces with the length of 0-3m only because the manipulator has huge sagging amount generated in the process of extending and retracting the welding arm, and cannot be used for workpieces with the length of 12 m.
When the inner seam of the special fixed-arm inner longitudinal seam welding machine is welded, the welding arm is fixedly suspended, a small tubular workpiece is sleeved on the welding arm through a bottom moving trolley, a welding gun at the end part of the welding arm is aligned to the inner longitudinal seam, the workpiece is dragged to withdraw from the welding arm while the welding trolley is welding, and the workpiece completely withdraws from the welding arm after welding. The special machine well solves the problem of the drooping of the welding arm, but in order to ensure that the welding arm does not droop, the section of the arm body must be ensured to be of a certain size, otherwise, the drooping of the welding arm in a static state occurs due to insufficient rigidity, and therefore welding is affected. Because the cross section of the arm body cannot be smaller than a certain size, the special machine can only weld workpieces with the diameter larger than 600mm, and is ineligible for long workpieces with the diameters within the range of 300-600 mm.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic submerged arc welding device of pipe fitting inseam to solve the problem that the flagging volume that the welding arm produced is great and leads to the rigidity not enough when the welding of the special machine of longitudinal joint submerged arc welding in the little pipe diameter on the existing market, can only weld the great work piece of diameter.
In order to solve the technical problem, the utility model provides an automatic submerged arc welding device of pipe fitting internal seam can weld the longitudinal joint of arbitrary pipe diameter pipe fitting, the automatic submerged arc welding device of pipe fitting internal seam includes:
welding a trolley;
the guide rail is arranged at the bottom of the welding trolley, and the welding trolley can move along the guide rail;
the lifting mechanism is arranged on the welding trolley;
one end of the welding arm is hinged with the lifting mechanism, and the other end of the welding arm is fixedly connected with a welding gun;
and the guide wheel mechanism is fixedly arranged at the bottom of the welding arm, can move along the welding line of the pipe fitting along with the movement of the welding trolley, and is used for tracking the welding line and supporting the welding arm.
Optionally, the guide wheel mechanism comprises:
the double guide wheels are fixedly connected to the bottom of one end, close to the welding gun, of the welding arm;
the auxiliary riding wheel is fixedly connected to the middle part of the welding arm;
the double guide wheels comprise a first wheel seat, a first guide wheel and a second guide wheel, wherein the first wheel seat is fixedly connected to the bottom of the welding arm, and the first guide wheel and the second guide wheel are respectively and rotatably connected to the first wheel seat along the axial direction of the welding arm;
the auxiliary supporting wheel comprises a second wheel seat and a first supporting wheel, wherein the second wheel seat is fixedly connected to the middle of the welding arm, and the first supporting wheel is rotatably connected to the second wheel seat.
Optionally, the guide rail is further provided with a plurality of auxiliary brackets for supporting the welding arm, and the auxiliary brackets can move along the guide rail.
Optionally, the lifting mechanism includes:
the stop sleeve is fixed on the welding trolley along the vertical direction;
the supporting rod is movably inserted into the stop sleeve;
the supporting rod is provided with a plurality of pin holes in parallel along the vertical direction, the pin holes are internally connected with positioning pins, and two ends of the positioning pins protrude out of the pin holes and are supported on the end face of the top of the stop sleeve.
Optionally, one end of the welding arm is hinged to the support rod through a hinge, and a limit baffle is further fixed on the support rod and used for supporting the welding arm.
Optionally, the welding trolley is further provided with a driving assembly for driving the welding trolley to move.
Optionally, the welding trolley is further provided with an electric control cabinet, and the electric control cabinet is electrically connected with the driving assembly.
Optionally, the welding trolley is further provided with a welding flux conveying hopper.
The utility model provides a pair of automatic submerged arc welding device of pipe fitting internal seam, through the bottom of welding the arm sets up guide wheel mechanism, it is right in the welded of pipe fitting welding seam, guide wheel mechanism can automatic machine tracking welding seam and right the welding arm provides the support, avoids the welding arm is flagging and leads to rigidity not enough, can satisfy the rigidity demand of longitudinal joint submerged arc welding special plane in the small pipe diameter, and can make the cross sectional dimension of welding arm reduces by a wide margin to the interior transversal joint welding of the little footpath work piece of diameter 300 mm.
Drawings
FIG. 1 is a schematic structural view of an automatic submerged arc welding device for an inner seam of a pipe fitting provided by the present invention;
FIG. 2 is a view in elevation of FIG. 1;
FIG. 3 is a schematic structural view of a dual guide wheel;
fig. 4 is a schematic structural view of the auxiliary idler.
Detailed Description
The automatic submerged arc welding device for the pipe inner seam provided by the invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides an automatic submerged arc welding device of pipe fitting inside joint can weld the longitudinal joint of arbitrary pipe diameter pipe fitting 4, and its structure is as shown in figure 1 and figure 2. The automatic submerged arc welding device for the inner seam of the pipe fitting comprises a welding trolley 1, a guide rail 2, a lifting mechanism, a welding arm 3 and a guide wheel mechanism, wherein the guide rail 2 is arranged at the bottom of the welding trolley 1, and the welding trolley 1 can move along the guide rail 2; one end of the welding arm 3 is hinged with the lifting mechanism, and the other end of the welding arm is fixedly connected with a welding gun; the guide wheel mechanism is fixedly arranged at the bottom of the welding arm 3, can move along the welding line of the pipe fitting 4 along with the movement of the welding trolley 1, and is used for tracking the welding line and supporting the welding arm 3.
Specifically, the guide wheel mechanism comprises a double guide wheel 51 and an auxiliary riding wheel 52, wherein the double guide wheel 51 is fixedly connected to the bottom of one end, close to the welding gun, of the welding arm 3 and is used for tracking a welding seam; the auxiliary riding wheel 52 is fixedly connected to the middle part of the welding arm 3 and is used for assisting in tracking a welding seam; referring to fig. 3, the dual guide wheel 51 includes a first wheel seat 510, a first guide wheel 511 and a second guide wheel 512, wherein the first wheel seat 510 is fixedly connected to the bottom of the welding arm 3, and the first guide wheel 511 and the second guide wheel 512 are respectively rotatably connected to the first wheel seat 510 along the axial direction of the welding arm 3; the double guide wheels 51 adopt the front and rear double wheels to be clamped into the welding line for guiding, so that double guiding insurance is realized. Referring to fig. 4, the auxiliary idler 52 includes a second wheel seat 520 and a first idler 521, wherein the second wheel seat 520 is fixedly connected to the middle portion of the welding arm 3, and the first idler 521 is rotatably connected to the second wheel seat 520.
With reference to fig. 1, the lifting mechanism includes a stop sleeve 61 and a support rod 62, and the stop sleeve 61 is fixed on the welding carriage 1 along the vertical direction; the supporting rod 62 is movably inserted into the stop sleeve 61; the support rod 62 is provided with a plurality of pin holes 63 in parallel along the vertical direction, a positioning pin 64 is connected in the pin holes 63, and two ends of the positioning pin 64 protrude out of the pin holes 63 and are supported on the end surface of the top of the stop sleeve 61.
One end of the welding arm 3 is hinged with the support rod 62 through a hinge 30, so that the welding arm 3 can adjust the height in an up-and-down follow-up manner, and a limit baffle 10 is further fixed on the support rod 62 and used for supporting the welding arm 3.
Still be equipped with a plurality of auxiliary bracket 6 on the guide rail 2 for support and weld arm 3, prevent in welding process weld arm 3 middle part flagging, gyro wheel 60 is all installed to auxiliary bracket 6's bottom, auxiliary bracket 6 can follow guide rail 2 removes. The welding tractor 1 is further provided with a driving assembly 7 for driving the welding tractor 1 to move, and in the first embodiment, the driving assembly 7 is a combined mechanism of a motor and a speed reducer. The welding tractor 1 is also provided with an electric control cabinet 8 which is electrically connected with the driving component 7. And the welding tractor 1 is also provided with a welding flux conveying hopper 9.
The working principle is as follows: when the welding tractor is used, the driving assembly 7 drives the welding tractor 1 to move along the guide rail 2, and the first guide wheel 511, the second guide wheel 512 and the first riding wheel 521 are clamped into a welding seam, so that the welding seam tracking is realized and the end part of the welding arm 3 is supported; and the welding trolley 1 drives a welding gun to weld the inner seam of the pipe fitting 4 while moving. When the welding trolley 1 drives the welding arm 3 to move, the auxiliary bracket 6 is supported in the middle of the welding arm 3, so that the middle of the welding arm 3 is prevented from sagging.
The utility model provides a pair of automatic submerged arc welding set of pipe fitting internal seam, through the bottom of welding arm 3 sets up guide wheel mechanism, it is right in 4 welding seam welded of pipe fitting, guide wheel mechanism can automatic machine tracking welding seam and right it provides the support to weld arm 3, avoids it is not enough to weld arm 3 flagging and leading to rigidity, can satisfy the rigidity demand of longitudinal joint submerged arc welding special plane in the small pipe diameter, and can make the cross sectional dimension of welding arm 3 reduces by a wide margin to the interior transversal joint welding of the little footpath work piece of diameter 300 mm.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (8)
1. The utility model provides an automatic submerged arc welding set of pipe fitting inside seam, can weld the longitudinal joint of arbitrary pipe diameter pipe fitting (4), its characterized in that, the automatic submerged arc welding set of pipe fitting inside seam includes:
a welding carriage (1);
the guide rail (2) is arranged at the bottom of the welding trolley (1), and the welding trolley (1) can move along the guide rail (2);
the lifting mechanism is arranged on the welding trolley (1);
one end of the welding arm (3) is hinged with the lifting mechanism, and the other end of the welding arm is fixedly connected with a welding gun;
and the guide wheel mechanism is fixedly arranged at the bottom of the welding arm (3), can move along the welding seam of the pipe fitting (4) along with the movement of the welding trolley (1), and is used for tracking the welding seam and supporting the welding arm (3).
2. The automatic submerged arc welding device for pipe internal seams as claimed in claim 1, wherein the guide wheel mechanism comprises:
the double guide wheels (51) are fixedly connected to the bottom of one end, close to the welding gun, of the welding arm (3);
the auxiliary riding wheel (52) is fixedly connected to the middle part of the welding arm (3);
the double guide wheels (51) comprise a first wheel seat (510), a first guide wheel (511) and a second guide wheel (512), wherein the first wheel seat (510) is fixedly connected to the bottom of the welding arm (3), and the first guide wheel (511) and the second guide wheel (512) are respectively and rotatably connected to the first wheel seat (510) along the axial direction of the welding arm (3);
the auxiliary riding wheel (52) comprises a second wheel seat (520) and a first riding wheel (521), wherein the second wheel seat (520) is fixedly connected to the middle of the welding arm (3), and the first riding wheel (521) is rotatably connected to the second wheel seat (520).
3. An automatic submerged arc welding device for pipe internal seams as claimed in claim 1, characterized in that a plurality of auxiliary brackets (6) are further provided on said guide rail (2) for supporting the welding arm (3), said auxiliary brackets (6) being movable along said guide rail (2).
4. The automatic submerged arc welding device for pipe internal seams as claimed in claim 1, wherein the lifting mechanism comprises:
the stop sleeve (61) is fixed on the welding trolley (1) along the vertical direction;
the supporting rod (62) is movably inserted into the stop sleeve (61);
the supporting rod (62) is provided with a plurality of pin holes (63) in parallel along the vertical direction, the pin holes (63) are internally connected with positioning pins (64), and two ends of the positioning pins (64) protrude out of the pin holes (63) and are supported on the end face of the top of the stop sleeve (61).
5. The automatic submerged arc welding device for pipe internal seams as claimed in claim 4, characterized in that one end of the welding arm (3) is hinged with the supporting rod (62) through a hinge (30), and a limit baffle (10) is further fixed on the supporting rod (62) and used for supporting the welding arm (3).
6. The automatic submerged arc welding device for the inner seam of the pipe fitting as claimed in claim 1, characterized in that the welding trolley (1) is further provided with a driving assembly (7) for driving the welding trolley (1) to move.
7. The automatic submerged arc welding device for the pipe inner seam as claimed in claim 6, characterized in that the welding trolley (1) is further provided with an electric control cabinet (8) and is electrically connected with the driving assembly (7).
8. The automatic submerged arc welding device for the inner seam of the pipe fitting as claimed in claim 1, characterized in that the welding trolley (1) is further provided with a flux conveying hopper (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147083.8U CN210997000U (en) | 2019-12-04 | 2019-12-04 | Automatic submerged arc welding device for pipe fitting inner seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147083.8U CN210997000U (en) | 2019-12-04 | 2019-12-04 | Automatic submerged arc welding device for pipe fitting inner seam |
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| Publication Number | Publication Date |
|---|---|
| CN210997000U true CN210997000U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922147083.8U Active CN210997000U (en) | 2019-12-04 | 2019-12-04 | Automatic submerged arc welding device for pipe fitting inner seam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399837A (en) * | 2023-12-15 | 2024-01-16 | 济南鲁能开源铁塔有限公司 | Inner seam welding equipment for metal pipe fittings |
-
2019
- 2019-12-04 CN CN201922147083.8U patent/CN210997000U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399837A (en) * | 2023-12-15 | 2024-01-16 | 济南鲁能开源铁塔有限公司 | Inner seam welding equipment for metal pipe fittings |
| CN117399837B (en) * | 2023-12-15 | 2024-02-13 | 济南鲁能开源铁塔有限公司 | Inner seam welding equipment for metal pipe fittings |
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