CN209830695U - Tube plate welding machine - Google Patents
Tube plate welding machine Download PDFInfo
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- CN209830695U CN209830695U CN201920086321.6U CN201920086321U CN209830695U CN 209830695 U CN209830695 U CN 209830695U CN 201920086321 U CN201920086321 U CN 201920086321U CN 209830695 U CN209830695 U CN 209830695U
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- collector ring
- driving shaft
- tube sheet
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Abstract
The utility model relates to a pipe-plate welding machine, which comprises a bracket, a positioning head, a welding gun, a driving shaft and a collector ring component; the positioning head, the driving shaft and the collector ring assembly are coaxially connected to the bracket; the welding gun is relatively fixed with the driving shaft through an adjusting device, and a gun mouth faces the positioning head; the driving shaft drives the welding gun to rotate around the shaft; the positioning head is used for fixing and welding a pipe fitting and can rotate relative to the welding gun; and a through hole for the welding protection gas of the welding gun to pass through is arranged in the collecting ring assembly. The utility model has the advantages as follows: utility model realizes automatic weld through the rotation of drive shaft drive welder, and the welding seam location is accurate, and the welding is even.
Description
Technical Field
The utility model relates to a welding machine, concretely a tube sheet welding machine.
Background
In industrial production, welding is an important technique, and in the welding technique, welding of pipe and plate is often involved. The tube plate welding is a difficult technology in the industry all the time, the tube plate welding can be completed only by multilayer multi-pass surfacing, the complex thermal cycle inevitably causes thermal stress and deformation, especially, various welding problems can be caused under the condition that the manual welding speed is not uniform or welding spots are not accurate, for example, when the circular welding is carried out, the circular shrinkage of welding seam metal is generated in the welding parallel direction, the radial shrinkage is generated in the direction vertical to the welding seam, and the angular deformation is generated in the thickness direction along with the increase of the number of welding seam channels.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims at providing a tube sheet welding machine can realize the automatic weld to pipe fitting and plate.
The technical scheme of the utility model as follows:
a pipe plate welding machine comprises a support, a positioning head, a welding gun, a driving shaft and a collector ring assembly; the positioning head, the driving shaft and the collector ring assembly are coaxially connected to the bracket; the welding gun is relatively fixed with the driving shaft through an adjusting device, and a gun mouth faces the positioning head; the driving shaft drives the welding gun to rotate around the shaft; the positioning head is used for fixing and welding a pipe fitting and can rotate relative to the welding gun; and a through hole for the welding protection gas of the welding gun to pass through is arranged in the collecting ring assembly.
Further, in the above tube sheet welding machine, the positioning head includes a housing, an expansion cone and a tip bead; the top bead and the expansion cone are arranged in the shell; the top bead is matched with the conical surface of the expansion cone so as to extend out of the shell to abut against the welded pipe fitting when the expansion cone moves downwards along the axis; the expansion cone is in driving connection with the air cylinder to move up and down along the axis.
Further, in the above-mentioned tube sheet welding machine, the adjusting device includes a horizontal adjusting mechanism for moving the welding gun perpendicular to the shaft and a vertical adjusting mechanism for moving the welding gun along the shaft.
Further, in the tube plate welding machine, the periphery of the welding gun is provided with the insulating sleeve.
Further, in the above tube sheet welding machine, the adjusting device and the driving shaft are connected by a connecting sleeve.
Further, in the above tube sheet welding machine, at least three support legs are mounted on the bracket.
Further, in the above tube sheet welding machine, the support leg is provided with a length adjusting device.
Further, in the above tube sheet welding machine, the leg comprises at least one adjusting leg; one end of the cross rod is connected with the rotating shaft of the support, and the other end of the cross rod is connected with the adjusting supporting leg.
Further, in the above tube sheet welding machine, the collector ring assembly includes a collector ring, a collector ring seat and a conductive ring; the collector ring is arranged on the collector ring seat, and the collector ring seat are electrically connected through the conducting ring; the collector ring is fixedly connected with the driving shaft, and the collector ring seat is fixedly connected with the bracket; the collector ring seat is connected with a welding cable and a welding wire; the collector ring is connected with a corresponding power supply cable; the through hole is arranged on the collector ring.
Further, in the above tube sheet welding machine, the driving shaft is driven by a motor; the driving shaft is connected with an output shaft of the motor through a gear; the driving shaft is connected with a gear on an output shaft of the motor through a gear anti-backlash mechanism.
The utility model has the advantages as follows:
1) the utility model discloses a drive shaft drive welder rotates and realizes automatic weld, and the welding seam location is accurate, and the welding is even.
2) The pipe fitting is fixed through the top bead, and the position of the pipe plate is fixed during welding.
3) Can be favorable to the fine setting in the welding process through adjusting device adjustment welder position.
4) The welding wire curvature is changed through the height of the connecting sleeves with different heights, and the trachea can be prevented from being bent.
5) Length adjustment device can adjust welder mouthful position through the height-adjusting on the one hand, and on the other hand can be adjusted different landing legs for not co-altitude and guarantee the drive shaft direction, avoids the influence that plate surface unevenness brought.
6) The landing leg can be adjusted and a proper supporting position can be selected, and the influence of obstacles on the plate on the support is avoided.
Drawings
Fig. 1 is a schematic diagram of a machine section structure of the tube sheet welding machine of the present invention.
FIG. 2 is a schematic structural view of a positioning head of the tube sheet welder of the present invention.
Fig. 3 is a schematic structural view of a collector ring assembly.
In the above drawings, 1, a positioning head; 2. a cylinder; 3. an adjustment device; 4. a welding gun; 5. a connecting sleeve; 6. a support; 7. a current collecting ring assembly; 8. a cable joint; 9. a sheath spring; 10. adjusting the supporting legs; 101. a housing; 102. expanding a cone; 103. a top bead; 301. a collector ring seat; 302. conducting rings; 303. a slip ring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model provides a pipe-plate welding machine, which is used for welding pipe fittings on holes of plate parts, and comprises a bracket 6, a positioning head 1, a welding gun 4, a driving shaft and a current collecting ring component 7; the positioning head 1, the driving shaft and the collector ring assembly 7 are coaxially connected to the bracket 6; the welding gun 4 is relatively fixed with the driving shaft through an adjusting device 3, and a gun mouth faces the positioning head 1; the driving shaft drives the welding gun 4 to rotate around the shaft; the positioning head is used for fixing and welding a pipe fitting and can rotate relative to the welding gun 4; a through hole for passing the welding shielding gas of the welding gun 4 is formed in the slip ring assembly 7.
As shown in fig. 2, the positioning head 1 comprises a housing 101, an expansion cone 102 and a top bead 103; the top bead 103 and the expansion cone 102 are arranged in the shell 101; the top bead 103 cooperates with the conical surface of the expansion cone 102 to project the housing 101 against the welded pipe as the expansion cone 102 moves axially downward; the expansion cone 102 is drivingly connected to the cylinder 2 to move up and down along an axis.
The relation between the outer diameter D1 of the positioning head 1 and the inner diameter D2 of the pipe wall of the pipe fitting is D1+1 which is D2, and a gap of 1 mm ensures that the positioning head 1 smoothly extends into/withdraws from the pipe wall. The cylinder 2 pushes the expansion cone, and the expansion cone pushes the top bead to tightly push the top bead and the pipe wall, so as to fix the center of the whole machine. The roughness Ra of the top bead is 1.6, and the smooth surface ensures that the top bead cannot be clamped.
The cylinder 2 inputs pressure air through the hose connector, pushes the piston, drives the expansion cone, and performs expansion positioning. After air leakage, the air cylinder 2 returns to the original position under the action of the spring, and at the moment, the top bead is not stressed and can exit from the pipe wall. The air tightness of the cylinder 2 is guaranteed by the sealing ring, the resilience of the cylinder 2 is guaranteed by the spring, and the expansion cone can rotate without sliding friction by the bearing.
The adjusting device 3 includes a horizontal adjusting mechanism for moving the welding gun 4 perpendicular to the shaft and a vertical adjusting mechanism for moving the welding gun 4 along the shaft.
Further, the periphery of the welding gun 4 is provided with an insulating sleeve to prevent sparking.
In fig. 1, the adjusting device 3 and the drive shaft are connected by a connecting sleeve 5. The height of the connecting sleeve 5 has the function of determining the curvature of the welding wire, and different requirements on the curvature of the welding wire can be met through different sleeve heights. The proper height of the sleeve is selected to prevent the trachea from generating dead bending.
At least three support legs are arranged on the support 6 to form a stable support. The legs are provided with length adjustment means (not shown in the figures). The supporting legs comprise at least one adjusting supporting leg 10; one end of the cross rod is connected with the rotating shaft of the bracket 6, and the other end of the cross rod is connected with the adjusting supporting leg 10.
As shown in fig. 3, the slip ring assembly 7 includes a slip ring 303, a slip ring receptacle 301, and a conductive ring 302; the collector ring 303 is arranged on the collector ring seat 301, and the collector ring seat are electrically connected through a conductive ring 302; the collector ring 303 is fixedly connected with the driving shaft, and the collector ring seat 301 is fixedly connected with the bracket 6; a welding cable and a welding wire are connected to the current collecting ring base 301; the collector ring 303 is connected with a corresponding power supply cable; the through-holes are provided on the slip ring 303. In this embodiment, the collector ring 303 and the collector ring holder 301 are a stator and a rotor, respectively, sandwiching a graphite conductive ring 302, which is fixed on the collector ring holder and slides and rubs with the collector ring. Welding shielding gas is fed into the through hole in the middle of the collector ring, and the air tightness is ensured through the check ring. The collector ring assembly 7 is further provided with a spring for pressing the collector ring so as to ensure that the collector ring is tightly contacted with the graphite conducting ring and ensure the conducting effect. The insulating sleeve keeps the slip ring from sparking. The collecting ring seat is connected with a cable joint 8. A sheath spring 9 is arranged on the cable connected with the cable joint 8; the sheath spring 9 is arranged in a spring seat on the bracket 6.
The driving shaft is driven by a motor; the driving shaft is connected with an output shaft of the motor through a gear; the driving shaft is connected with a gear on an output shaft of the motor through a gear anti-backlash mechanism. The motor provides rotation power, and the large gear is tightly attached to the small gear through the clearance eliminating mechanism, so that precise rotation is realized.
The utility model discloses a tube sheet welding machine use step as follows:
sleeving a pipe fitting on the positioning head 1, and starting an air pump to enable the ejector bead to abut against the pipe fitting;
the pipe fitting is aligned with the welding hole in the plate; the adjusting supporting legs (comprising the adjusting supporting legs 10 and the length adjusting devices) enable the support to stably stand on the plate;
the adjusting device finely adjusts the position of the welding gun 4 to enable the welding gun mouth to be aligned with the welding seam;
during welding, the motor drives the driving shaft to rotate, so that the welding gun 4 is driven to rotate, and stability in the rotating process is guaranteed.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. A tube sheet welding machine characterized by: comprises a bracket, a positioning head, a welding gun, a driving shaft and a collector ring assembly; the positioning head, the driving shaft and the collector ring assembly are coaxially connected to the bracket; the welding gun is relatively fixed with the driving shaft through an adjusting device, and a gun mouth faces the positioning head; the driving shaft drives the welding gun to rotate around the shaft; the positioning head is used for fixing and welding a pipe fitting and can rotate relative to the welding gun; and a through hole for the welding protection gas of the welding gun to pass through is arranged in the collecting ring assembly.
2. The tube sheet welder of claim 1, wherein: the positioning head comprises a shell, an expansion cone and a top bead; the top bead and the expansion cone are arranged in the shell; the top bead is matched with the conical surface of the expansion cone so as to extend out of the shell to abut against the welded pipe fitting when the expansion cone moves downwards along the axis; the expansion cone is in driving connection with the air cylinder to move up and down along the axis.
3. The tube sheet welder of claim 1, wherein: the adjustment device includes a horizontal adjustment mechanism for moving the welding gun perpendicular to the shaft and a vertical adjustment mechanism for moving the welding gun along the shaft.
4. The tube sheet welder of claim 1, wherein: and an insulating sleeve is arranged on the periphery of the welding gun.
5. The tube sheet welder of claim 1, wherein: the adjusting device and the drive shaft are connected by a connecting sleeve.
6. The tube sheet welder of claim 1, wherein: at least three support legs are arranged on the support.
7. The tube sheet welder of claim 6, wherein: and the supporting legs are provided with length adjusting devices.
8. The tube sheet welder of claim 7, wherein: the supporting leg comprises at least one adjusting supporting leg; one end of the cross rod is connected with the rotating shaft of the support, and the other end of the cross rod is connected with the adjusting supporting leg.
9. The tube sheet welder of any of claims 1-8, wherein: the collector ring assembly comprises a collector ring, a collector ring seat and a conducting ring; the collector ring is arranged on the collector ring seat, and the collector ring seat are electrically connected through the conducting ring; the collector ring is fixedly connected with the driving shaft, and the collector ring seat is fixedly connected with the bracket; the collector ring seat is connected with a welding cable and a welding wire; the collector ring is connected with a corresponding power supply cable; the through hole is arranged on the collector ring.
10. The tube sheet welder of any of claims 1-8, wherein: the driving shaft is driven by a motor; the driving shaft is connected with an output shaft of the motor through a gear; the driving shaft is connected with a gear on an output shaft of the motor through a gear anti-backlash mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920086321.6U CN209830695U (en) | 2019-01-18 | 2019-01-18 | Tube plate welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920086321.6U CN209830695U (en) | 2019-01-18 | 2019-01-18 | Tube plate welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830695U true CN209830695U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920086321.6U Active CN209830695U (en) | 2019-01-18 | 2019-01-18 | Tube plate welding machine |
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| Country | Link |
|---|---|
| CN (1) | CN209830695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117984025A (en) * | 2024-04-03 | 2024-05-07 | 高密鼎泰锅炉配件有限公司 | Automatic tube plate welding device |
-
2019
- 2019-01-18 CN CN201920086321.6U patent/CN209830695U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117984025A (en) * | 2024-04-03 | 2024-05-07 | 高密鼎泰锅炉配件有限公司 | Automatic tube plate welding device |
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