CN114310072A - Unsettled location tube sheet welding equipment - Google Patents
Unsettled location tube sheet welding equipment Download PDFInfo
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- CN114310072A CN114310072A CN202210158759.7A CN202210158759A CN114310072A CN 114310072 A CN114310072 A CN 114310072A CN 202210158759 A CN202210158759 A CN 202210158759A CN 114310072 A CN114310072 A CN 114310072A
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Abstract
The invention belongs to the technical field of welding, and particularly relates to suspended positioning tube plate welding equipment which comprises a horizontal moving locking mechanism and a welding device, wherein the horizontal moving locking mechanism is provided with a plurality of rotating arms which are sequentially hinged; the lifting mobile locking mechanism is connected with an execution end of the horizontal mobile locking mechanism; the suspended positioning mechanism is connected with the execution end of the lifting mobile locking mechanism and is provided with a positioning rod which is arranged in the same direction as the lifting direction and is telescopic, and the tail end of the positioning rod is provided with a welding gun height and rotating axis positioning structure; the welding gun adjusting mechanism is connected with the execution end of the lifting mobile locking mechanism and is rotationally connected with the positioning rod, and the welding gun adjusting mechanism comprises a horizontal adjusting mechanism and an angle adjusting mechanism; the positioning device realizes the positioning of the welding gun by the extension of the positioning rod and the height of the welding gun and the rotating axis positioning structure arranged at the tail end of the positioning rod, and avoids the welding of the positioning structure and the tube plate in the welding process by the retraction and suspension of the positioning rod.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to suspended positioning tube plate welding equipment.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Heat exchange equipment is widely applied in modern manufacturing industry and daily life, and tube plate welding in the heat exchange equipment is a very important manufacturing procedure. The number of the welding joints of the tube plate is large, and the welding position and the compactness of a welding seam are severe, so that the quality of the welding quality of the tube plate plays a decisive role in the operation of the heat exchanger, and the positioning and the movement of a welding head are the key for judging whether the automatic welding machine of the tube plate can reliably complete the welding.
At present, in many enterprises, especially small and medium-sized enterprises, a tube plate welding machine mostly adopts manual positioning for welding a tube plate, and the center positioning of a circumferential weld of the tube plate is mainly realized by a central rod and a tensioning block. However, the structure often causes the accident that the tensioning block and the welding part are welded together due to factors such as the position of a welding gun, the assembly position, the fluctuation of welding process parameters and the like, the quality of a welding seam is difficult to ensure, and the repair rate is high.
Disclosure of Invention
The invention aims to provide suspended positioning tube plate welding equipment to solve the problem that a tensioning block and a welding part are welded together. In order to achieve the above object, the present invention is achieved by the following technical solutions:
the invention provides a suspended positioning tube plate welding device, which comprises:
the horizontal movement locking mechanism is provided with a plurality of rotating arms which are sequentially hinged;
the lifting mobile locking mechanism is connected with an execution end of the horizontal mobile locking mechanism;
the suspended positioning mechanism is connected with the execution end of the lifting mobile locking mechanism and is provided with a positioning rod which is arranged in the same direction as the lifting direction and is telescopic, and the tail end of the positioning rod is provided with a welding gun height and rotating axis positioning structure;
and the welding gun adjusting mechanism is connected with the execution end of the lifting movable locking mechanism and is rotationally connected with the positioning rod, and the welding gun adjusting mechanism comprises a horizontal adjusting mechanism and an angle adjusting mechanism.
As a further technical scheme, the welding gun height and rotation axis positioning structure comprises a tensioning sleeve sleeved at the tail end of the positioning rod and connected with the positioning rod in a sliding manner, a positioning block fixed on the positioning rod and positioned above the tensioning sleeve, and a height positioning rod spirally connected with the positioning block;
and a spring is arranged between the tensioning sleeve and the positioning block.
As a further technical solution, an electromagnetic brake is provided in each of the horizontal movement locking mechanism and the lifting movement locking mechanism, and locking is performed by the electromagnetic brake.
As a further technical scheme, the device also comprises an upright post, wherein the horizontal movement locking mechanism comprises two sections of hinged rotating arms, and the starting end of one rotating arm is hinged with the upright post.
As a further technical scheme, the device also comprises a base for placing the tube plate, and the upright posts are fixed on the base.
As a further technical scheme, the lifting movement locking mechanism comprises a lifting arm and a gear rack lifting mechanism connected with the lifting arm.
As a further technical scheme, the welding gun adjusting mechanism further comprises a fixed disc and a rotating disc which are sleeved on the positioning rod, the lifting arm is fixedly connected with the fixed disc, a motor for driving the rotating disc to move is arranged on the fixed disc, and the rotating disc is connected with the horizontal adjusting mechanism.
As a further technical scheme, a gear transmission mechanism for transmitting the power of the motor is arranged between the fixed disc and the rotating disc.
As a further technical scheme, the horizontal adjusting mechanism comprises a slide rail and a slide block matched with the slide rail, an adjusting bolt used for adjusting the distance between the welding gun and the positioning rod is arranged on the slide block, the slide block is connected with the angle adjusting mechanism, and a welding gun clamp is arranged on the angle adjusting mechanism.
As a further technical solution, the positioning rod is provided with a driving device, and the driving device is an air cylinder.
The beneficial effects of the invention are as follows:
(1) the welding gun positioning device is provided with the suspended positioning mechanism, the positioning of the welding gun is realized through the extension of the positioning rod, the welding gun height and the rotating axis positioning structure arranged at the tail end of the positioning rod, the positioning structure is prevented from being welded with a tube plate in the welding process through the retraction and suspension of the positioning rod, and the welding seam quality is improved.
(2) According to the invention, under the telescopic action of the positioning rod, the tensioning sleeve is inserted into the pipe or withdrawn from the pipe, the positioning of a welding gun can be quickly realized by matching with the height positioning rod when the tensioning sleeve is inserted into the pipe, the positioning efficiency of the welding gun is improved, and the tensioning sleeve is quickly reset under the elastic action of the spring when the tensioning sleeve is withdrawn from the pipe, so that the device is ready for subsequent positioning.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. It will be further appreciated that the drawings are for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
FIG. 1 shows a schematic of the overall structure of the present invention;
FIG. 2 shows a schematic view of the horizontal motion locking mechanism of the present invention;
FIG. 3 shows a schematic view of the vertical motion locking mechanism of the present invention;
FIG. 4 is a schematic view of the automatic operating mechanism of the welding gun of the present invention;
figure 5 shows a schematic view of the flying positioning mechanism of the present invention.
In the figure: 1. a base; 2. a column; 3. a first electromagnetic brake; 3-1, fixing a first electromagnetic brake disc; 3-2, a first electromagnetic brake moving disc; 4. a first rotating arm connecting frame; 5. a first rotating arm; 6. a second rotating arm connecting frame; 7. a second rotating arm; 8. a second electromagnetic brake; 8-1, a second electromagnetic brake fixing disc; 8-2, a second electromagnetic brake moving disc; 9. a lifting mechanism shield; 10. a third electromagnetic brake; 11. a gear; 12. a lifting arm connecting frame; 13. a balancer; 14. a rack; 15. a slider; 16. a guide rail; 17. a lifting arm; 18. welding a head protective cover; 19. a cylinder; 20. a welding gun adjusting mechanism; 21. driving a stepping motor; 22. driving a stepping motor reducer; 23. a welding gun; 24. a tensioning sleeve; 25. a spring; 26. a set screw; 27. positioning blocks; 28. positioning a rod; 29. a bearing seat; 30. rotating the disc; 31. fixing the disc; 32. a drive gear; 33. a cylinder support; 34. a bearing; 35. a driven gear; 36. a positioning rod connecting rod; 37. a ball head connecting rod; 38. a welding gun support base; 39. a slide rail; 40. a slider; 41. a welding gun support; 42. welding gun clamp; 43. adjusting the bolt; 44. a rotating arm connecting shaft; 45. a bearing cap; 46. a first bearing housing; 47. and a second bearing seat.
Detailed Description
The technical solutions in the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 5, the present embodiment provides a suspended positioning tube plate welding apparatus, including:
the horizontal movement locking mechanism is provided with a plurality of rotating arms which are sequentially hinged;
the lifting mobile locking mechanism is connected with an execution end of the horizontal mobile locking mechanism;
the suspended positioning mechanism is connected with the execution end of the lifting mobile locking mechanism and is provided with a telescopic positioning rod 28 which is arranged in the same direction as the lifting direction, and the tail end of the positioning rod 28 is provided with a welding gun height and rotating axis positioning structure;
and the welding gun adjusting mechanism 20 is connected with the execution end of the lifting movable locking mechanism and is rotationally connected with the positioning rod, and the welding gun adjusting mechanism comprises a horizontal adjusting mechanism and an angle adjusting mechanism.
The welding gun positioning device is provided with the suspended positioning mechanism, the positioning rod extends out and the welding gun height and the rotating axis positioning structure arranged at the tail end of the positioning rod realize the positioning of the welding gun, the positioning structure is prevented from being welded with the tube plate together in the welding process by retracting the positioning rod in a suspending way, and the welding quality is improved.
As shown in fig. 1 and 2, the horizontal movement locking mechanism includes two sections of hinged rotating arms, wherein a starting end of one rotating arm is hinged to the upright 2, the two sections of hinged rotating arms are respectively a first rotating arm 5 and a second rotating arm 7, a first rotating arm connecting frame 4 is arranged at the top of the upright 2, the first rotating arm 5 is hinged to the first rotating arm connecting frame 4 through a rotating arm connecting shaft 44, bearings are arranged at two ends of the rotating arm connecting shaft 44, and the bearings are respectively placed in a first bearing seat 46 and a second bearing seat 47 and covered by a bearing cover 45.
The other end of the first rotating arm 5 is provided with a second rotating arm connecting frame 6, and the connection mode of the second rotating arm 7 and the second rotating arm connecting frame 6 is the same as the connection structure of the first rotating arm 5 and the first rotating arm connecting frame 4.
As shown in fig. 3, the elevating movement locking mechanism includes an elevating arm 17 and a rack and pinion elevating mechanism connected thereto. Specifically, the tail end of the second rotating arm 7 is provided with a lifting arm connecting frame 12, the lifting arm connecting frame 12 is provided with a sliding block 15, the lifting arm 17 is provided with a guide rail matched with the sliding block 15, the gear and rack lifting mechanism comprises a rack 14 arranged on the lifting arm 17 and a gear 11 arranged on the lifting arm connecting frame 12, and the gear 11 is rotatably connected with the lifting arm connecting frame 12 through a pin shaft.
It should be noted that, the horizontal movement locking mechanism and the lifting movement locking mechanism are both operated manually, and when the suspended positioning mechanism arranged at the execution end moves to the set position, locking operation is required.
In order to realize the locking operation, electromagnetic brakes are arranged in the horizontal movement locking mechanism and the lifting movement locking mechanism, and locking action is carried out through the electromagnetic brakes. Specifically, as shown in fig. 2 and 3, a first electromagnetic brake 3 is disposed at a hinged joint of a first rotating arm 5 and a first rotating arm connecting frame 4, and the first electromagnetic brake 3 includes a first electromagnetic brake fixed disc 3-1 and a first electromagnetic brake moving disc 3-2; a second electromagnetic brake 8 is arranged at the hinged position of the second rotating arm 7 and the second rotating arm connecting frame 6, and the second electromagnetic brake 8 comprises a second electromagnetic brake fixed disc 8-1 and a second electromagnetic brake moving disc 8-2; a third electromagnetic brake 10 is arranged at the rotary connection part of the gear 11 and the lifting arm connecting frame 12.
The welding equipment also comprises a base 1 for placing the tube plate, and the upright post 2 is fixed on the base 1.
As shown in fig. 5, the welding gun height and rotation axis positioning structure includes a tension sleeve 24 sleeved at the end of the positioning rod 28 and slidably connected therewith, a positioning block 27 fixed on the positioning rod 28 and located above the tension sleeve 24, and a height positioning rod spirally connected with the positioning block 27;
wherein, a spring 25 is arranged between the tensioning sleeve 24 and the positioning block 27.
Under the telescopic action of the positioning rod 28, the tensioning sleeve 24 is inserted into the pipe or withdrawn from the pipe, the positioning of a welding gun can be quickly realized by matching with the height positioning rod when the positioning rod is inserted into the pipe, the positioning efficiency of the welding gun is improved, and the tensioning sleeve 24 is quickly reset under the elastic force action of the spring 25 when the positioning rod is withdrawn from the pipe to prepare for subsequent positioning.
It is understood that the tensioning sleeve 24 is a positioning structure of the rotation axis of the welding gun, and the height positioning rod is a positioning structure of the height of the welding gun. Specifically, the positioning block 27 and the spring 25 are all sleeved on the positioning rod 28, the positioning block 27 and the positioning rod 28 are fixedly connected, and in this embodiment, the height positioning rod is a positioning screw 26.
As shown in fig. 4 and 5, the welding gun adjusting mechanism 20 further includes a fixed disk 31 and a rotating disk 30 sleeved on the positioning rod 28, the lifting arm 17 is fixedly connected with the fixed disk 31, the fixed disk 31 is provided with a motor for driving the rotating disk 30 to move, and the rotating disk 30 is connected with the horizontal adjusting mechanism.
The positioning rod 28 is provided with a driving device, which is a cylinder 19. As shown in fig. 1, the fixed plate 31 is provided with a cylinder bracket 33, and a ball connecting rod 37 and a positioning rod connecting rod 36 are further provided between the cylinder 19 and the positioning rod 28, as shown in fig. 5.
In this embodiment, a lifting mechanism shield 9 is arranged above the cylinder 19, and a balancer 13 is arranged between the lifting mechanism shield 9 and the lifting arm connecting frame 12 to balance the weight of the welding head and ensure that the welding head can hover at any position.
As shown in fig. 4 and 5, in the present embodiment, the motor fixed to the fixed disk 31 is a driving stepping motor 21, and a driving stepping motor reducer 22 is provided. A sliding sleeve is arranged between the fixed disc 31, the rotating disc 30 and the positioning rod 28, and the sliding sleeve is connected with the positioning rod 28 in a sliding manner. A bearing seat 29 is fixed on the sliding sleeve, a bearing 34 is arranged on the bearing seat 29, and the rotating disc 30 is connected with the bearing 34. A gear transmission mechanism for transmitting the power of the motor is arranged between the fixed disc 31 and the rotating disc 30. The gear transmission mechanism comprises a driving gear 32 and a driven gear 35, the driven gear 35 is connected with the rotating disc 30, and the driving gear 32 is connected with a motor output shaft.
The horizontal adjusting mechanism comprises a slide rail 39 and a slide block 40 matched with the slide rail, an adjusting bolt 43 used for adjusting the distance between the welding gun 23 and the positioning rod 28 is arranged on the slide block 40, the slide block 40 is connected with the angle adjusting mechanism, and a welding gun clamp 42 is arranged on the angle adjusting mechanism.
Specifically, the rotating disk 30 is connected to the welding gun support base 38, the sliding rail 39 is fixed to the welding gun support base 38, the sliding block 40 is connected to the welding gun support 41, the adjusting bolt 43 is connected to the welding gun support 41, and the welding gun support 41 and the welding gun clamp 42 are provided with the angle adjusting mechanism.
The suspension positioning working principle is as follows: when positioning is carried out, the electromagnetic brake is powered off, the piston rod of the air cylinder 19 is located at an extending position, the welding equipment is moved, the positioning rod 28 is suspended above the welding circular tube, the central shaft of the positioning rod 28 and the welding circular tube are approximately concentric, the welding equipment is moved downwards, the conical surface (the diameter of the lower end of the conical surface is smaller than the diameter of the welding circular tube) of the tensioning sleeve 24 is inserted into the welding circular hole, as the diameter of the upper part of the conical surface of the tensioning sleeve 24 is larger than the diameter of the welding circular tube, the tensioning sleeve 24 is contacted with the inner wall of the welding circular hole, the central shaft of the positioning rod 28 is concentric with the welding circular tube, meanwhile, the spring 25 is compressed and continuously moved to the positioning pin 26 (the position of the positioning pin 26 is determined according to the position of the welding gun when the position of the welding gun is adjusted) which is contacted with the welding plate and then stopped, the three locking electromagnetic brakes are powered on, the position of the welding equipment is locked, and positioning is completed; the cylinder 19 is reversed, the piston rod retracts, the ball head connecting rod 37, the positioning rod connecting rod 36 and the positioning rod 28 move upwards to drive the positioning pin 26, the positioning block 27, the tensioning sleeve 24 and the spring 25 to move upwards and suspend above the welded circular tube, a proper distance is kept, the tensioning sleeve 24 is separated from the welded circular tube, and suspension positioning is completed. And starting the welding machine and the rotating motor, and completing welding by rotating the welding gun around the welding pipe for one circle under the driving of the motor.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (10)
1. The utility model provides a unsettled fixed position tube sheet welding equipment which characterized in that includes:
the horizontal movement locking mechanism is provided with a plurality of rotating arms which are sequentially hinged;
the lifting mobile locking mechanism is connected with an execution end of the horizontal mobile locking mechanism;
the suspended positioning mechanism is connected with the execution end of the lifting mobile locking mechanism and is provided with a positioning rod which is arranged in the same direction as the lifting direction and is telescopic, and the tail end of the positioning rod is provided with a welding gun height and rotating axis positioning structure;
and the welding gun adjusting mechanism is connected with the execution end of the lifting movable locking mechanism and is rotationally connected with the positioning rod, and the welding gun adjusting mechanism comprises a horizontal adjusting mechanism and an angle adjusting mechanism.
2. The suspended positioning tube plate welding device as claimed in claim 1, wherein the welding gun height and rotation axis positioning structure comprises a tension sleeve sleeved at the end of the positioning rod and slidably connected with the positioning rod, a positioning block fixed on the positioning rod and located above the tension sleeve, and a height positioning rod spirally connected with the positioning block;
and a spring is arranged between the tensioning sleeve and the positioning block.
3. The suspended positioning tube plate welding device as claimed in claim 2, wherein electromagnetic brakes are arranged in the horizontal movement locking mechanism and the lifting movement locking mechanism, and locking is performed through the electromagnetic brakes.
4. The overhead positioned tube sheet welding apparatus of claim 2 further comprising a vertical column, wherein said horizontal motion locking mechanism comprises two articulated pivot arms, wherein a starting end of one of said pivot arms is articulated with said vertical column.
5. The overhead fixed-position tube sheet welding equipment as claimed in claim 4, further comprising a base for placing the tube sheet, wherein the upright is fixed on the base.
6. The overhead positioned tube sheet welding apparatus of claim 2 wherein said lift movement locking mechanism comprises a lift arm and a rack and pinion lift mechanism coupled thereto.
7. The welding equipment for the suspended positioning tube plate as claimed in claim 6, wherein the welding gun adjusting mechanism further comprises a fixed disk and a rotating disk sleeved on the positioning rod, the lifting arm is fixedly connected with the fixed disk, a motor for driving the rotating disk to move is arranged on the fixed disk, and the rotating disk is connected with the horizontal adjusting mechanism.
8. The overhead positioned tube sheet welding device of claim 7, wherein a gear transmission mechanism for transmitting the power of the motor is arranged between the fixed disc and the rotating disc.
9. The suspended positioning tube plate welding device as claimed in claim 8, wherein the horizontal adjusting mechanism comprises a slide rail and a slide block matched with the slide rail, the slide block is provided with an adjusting bolt for adjusting the distance between the welding gun and the positioning rod, the slide block is connected with the angle adjusting mechanism, and the angle adjusting mechanism is provided with a welding gun clamp.
10. The suspended positioning tube plate welding device as claimed in claim 1, wherein the positioning rod is provided with a driving device, and the driving device is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158759.7A CN114310072A (en) | 2022-02-21 | 2022-02-21 | Unsettled location tube sheet welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158759.7A CN114310072A (en) | 2022-02-21 | 2022-02-21 | Unsettled location tube sheet welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114310072A true CN114310072A (en) | 2022-04-12 |
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ID=81030235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210158759.7A Pending CN114310072A (en) | 2022-02-21 | 2022-02-21 | Unsettled location tube sheet welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114310072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275778A (en) * | 2023-05-17 | 2023-06-23 | 北京华艾鑫节能设备有限公司 | Automatic welding machine positioning device for heat exchanger tube plate |
| 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 |
-
2022
- 2022-02-21 CN CN202210158759.7A patent/CN114310072A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275778A (en) * | 2023-05-17 | 2023-06-23 | 北京华艾鑫节能设备有限公司 | Automatic welding machine positioning device for heat exchanger tube plate |
| CN116275778B (en) * | 2023-05-17 | 2023-07-21 | 北京华艾鑫节能设备有限公司 | Automatic welding machine positioning device for heat exchanger tube plate |
| 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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