A cooler bellows welding device

Abstract

The utility model belongs to welding equipment technical field relates to a kind of cooler bellows welding device, including machine table, two axial horizontal settings first rotating mechanism and second rotating mechanism are oppositely provided on the machine table, and the rotating end of the first rotating mechanism and the second rotating mechanism is respectively connected with cooler positioning tool and bellows positioning tool, the bottom end of the second rotating mechanism is connected with slide, the slide is slidably arranged on the machine table by transverse slide rail, and the machine table is connected with welding torch by XYZ axis movement module, and the machine table is provided with offset detection mechanism by support. The present application can realize the automatic welding of cooler and bellows, greatly improve the welding efficiency, the offset of cooler can be detected by the offset detection mechanism, and the position of welding torch is adjusted by the XYZ axis movement module to offset compensation, so as to ensure the welding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding device for a cooler bellows. Background Technology

[0002] Oil coolers are an indispensable part of modern automobile engines. Their main function is to maintain the temperature of the engine oil by dissipating heat, ensuring effective lubrication and cooling during high-intensity engine operation. To protect the equipment and pipelines, coolers are typically welded with bellows to prevent cracking caused by thermal expansion and contraction. In existing technologies, when welding bellows to the cooler, the cooler is usually clamped and fixed using tooling, and then the bellows is manually held and joined to the cooler before welding. This manual operation has low precision, and the weld seam of the bellows is circumferential, requiring a high level of skill from the welders. Therefore, this utility model proposes a bellows welding device for coolers. Utility Model Content

[0003] The main objective of this invention is to provide a cooling bellows welding device to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a cooling bellows welding device, comprising a machine base, on which two axially horizontally arranged first and second rotating mechanisms are provided opposite each other. The rotating ends of the first and second rotating mechanisms are respectively connected to a cooling unit positioning fixture and a bellows positioning fixture. The bottom end of the second rotating mechanism is connected to a sliding plate, which is slidably mounted on the machine base via a transverse slide rail. A welding torch is connected to the machine base via an XYZ axis moving module. An offset detection mechanism is provided on the machine base via a bracket.

[0005] Preferably, both the first rotating mechanism and the second rotating mechanism include vertical plates mounted on the machine base. A first turntable and a second turntable are respectively provided on the opposite side of the two vertical plates. A first servo motor and a second servo motor for driving the first turntable and the second turntable to rotate are respectively provided on the two vertical plates. A first mounting plate and a second mounting plate are respectively provided on the opposite side of the first turntable and the second turntable.

[0006] Preferably, the cooler positioning fixture includes two first connecting plates fixed on the first mounting plate. One end of each of the two first connecting plates is provided with a first connecting slope. A first support plate is fixed on the two first connecting slopes. The first support plate is provided with a U-shaped limiting space formed by a stop block and multiple side plates. The inner side of the stop block is provided with a concave limiting groove. The stop block is provided with a pipe opening clearance. A clamping component for pressing the cooler into the limiting space is connected to the side plate.

[0007] Preferably, the clamping assembly includes a first cylinder fixed to one side of the side plate. The rod end of the first cylinder is rotatably connected to one end of a first connecting rod via a pin. A connecting block is provided at the end of the first cylinder on one side of its rod. One end of a second connecting rod is rotatably connected to the connecting block via a pin. The other end of the second connecting rod is rotatably connected to the middle position of the first connecting rod via a pin. A third connecting rod is fixed to the other end of the first connecting rod and is parallel to it. A pressure plate is provided on the side of the third connecting rod facing the stop block.

[0008] Preferably, the corrugated pipe positioning fixture includes two second connecting plates fixed on the second mounting plate. One end of each of the two second connecting plates is provided with a second connecting slope. A T-shaped second support plate is fixed on each of the two second connecting slopes. The horizontal portion of the second support plate is fixed on the second connecting slope. A gripper cylinder is provided on the back of the horizontal portion of the second support plate. Each of the two gripper fingers of the gripper cylinder is fixed with an L-shaped clamping plate distributed on both sides of the vertical portion of the second support plate. The horizontal portion of the L-shaped clamping plate extends toward the upper surface of the second support plate. The flange of the corrugated pipe to be welded is clamped between the horizontal portion of the L-shaped clamping plate and the vertical portion of the second support plate.

[0009] Preferably, the offset detection mechanism includes a second cylinder whose extension direction is parallel to the width direction of the machine tool. An L-shaped plate is connected to the top rod of the second cylinder. The upper surface of the L-shaped plate is connected to a first laser displacement sensor for detecting the radial offset of the welded pipe opening of the cooler and a second laser displacement sensor for detecting the axial offset via a bracket. Both the second laser displacement sensor and the first laser displacement sensor are connected to a control terminal located on one side of the machine tool.

[0010] The beneficial effects of this utility model are as follows: the first rotating mechanism and the second rotating mechanism can drive the cooler installed in the cooler positioning fixture and the bellows installed in the bellows positioning fixture to rotate synchronously. The XYZ axis moving module then drives the welding torch to move above the welding point to perform circumferential welding, thereby greatly improving the welding efficiency. The offset detection mechanism can detect the offset of the cooler, and the XYZ axis moving module can adjust the position of the welding torch to compensate for the offset, thereby ensuring the welding accuracy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the cooling bellows welding device for an embodiment.

[0012] Figure 2 This is a schematic diagram of the welding torch structure.

[0013] Figure 3 This is a schematic diagram of the cooler positioning fixture structure.

[0014] Figure 4 This is a schematic diagram of the corrugated pipe positioning fixture structure.

[0015] Figure 5 This is a schematic diagram of the offset detection mechanism.

[0016] The numbers in the diagram represent: 1. Machine base; 2. First rotating mechanism; 3. Second rotating mechanism; 4. Cooler positioning fixture; 5. Bellows positioning fixture; 6. Slide plate; 7. XYZ axis moving module; 8. Welding torch; 9. First mounting plate; 10. Second mounting plate; 11. Third mounting plate; 12. Fourth mounting plate; 13. Connecting shaft; 14. Translation cylinder; 15. Clamp; 16. Offset detection mechanism; 17. Welding pipe end; 18. Vertical plate; 19. First turntable; 20. Second turntable; 21. First servo motor; 22. Second servo motor; 23. First connecting plate; 24. First... 25. Connecting inclined plane; 26. First support plate; 27. Stop block; 28. Side plate; 29. ​​Clamping assembly; 30. Limiting groove; 31. Pipe opening clearance; 32. First cylinder; 33. First connecting rod; 34. Connecting block; 35. Second connecting rod; 36. Third connecting rod; 37. Pressure plate; 38. Second connecting plate; 39. Second connecting inclined plane; 40. Gripper cylinder; 41. Gripper finger; 42. L-shaped clamping plate; 43. Flange; 44. Second cylinder; 45. L-shaped plate; 46. First laser displacement sensor; 47. Second laser displacement sensor. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments.

[0018] Example: As shown in Figure 5, a cooling coil bellows welding device of this utility model includes a machine base 1. Two axially horizontally arranged first rotating mechanisms 2 and second rotating mechanisms 3 are mounted on the machine base 1. The rotating ends of the first rotating mechanisms 2 and the second rotating mechanisms 3 are respectively connected to a cooling coil positioning fixture 4 and a bellows positioning fixture 5. A sliding plate 6 is connected to the bottom end of the second rotating mechanism 3. The sliding plate 6 is slidably mounted on the machine base 1 via a transverse slide rail. A welding torch 8 is connected to the machine base 1 via an XYZ axis moving module 7. The Z-axis moving part of the YZ-axis moving module 7 is provided with a third mounting plate 11. The bottom end of the third mounting plate 11 is fixed with a connecting shaft 13 perpendicular to its surface. A fourth mounting plate 12 is fixed on the connecting shaft 13. The welding torch 8 is axially slidably connected to the fourth mounting plate 12 through a guide sleeve. The fourth mounting plate 12 is provided with a translation cylinder 14 for driving the welding torch 8 to slide. The back of the fourth mounting plate 12 is connected to the connecting shaft 13 through a clamp 15, thereby facilitating the adjustment of the angle of the welding torch 8 in the vertical plane. The machine base 1 is equipped with an offset detection mechanism 16 via a bracket. A control terminal is located on one side of the machine base 1. The offset detection mechanism 16 and the XYZ axis moving module 7 are connected to the control terminal. The cooler and the bellows are placed into the cooler positioning fixture 4 and the bellows positioning fixture 5, respectively. The offset detection mechanism 16 detects the radial and axial offsets of the welded pipe opening 17 of the cooler and sends the detection data to the control terminal. The control terminal controls the XYZ axis moving module 7 to move, adjusts the position of the welding torch 8, performs offset compensation, and pushes the slide plate 6 to align the bellows to the left with the welded pipe opening 17 of the cooler. The first rotating mechanism 2 and the second rotating mechanism 3 synchronously drive the cooler and the bellows to rotate. The welding torch 8 performs circumferential welding on the connecting column of the cooler and the bellows, thereby greatly improving welding efficiency. The offset detection mechanism 16 can detect the offset of the cooler, and the XYZ axis moving module 7 can adjust the position of the welding torch 8 to perform offset compensation, thereby ensuring welding accuracy.

[0019] Both the first rotating mechanism 2 and the second rotating mechanism 3 include a vertical plate 18 mounted on the machine base 1. A first turntable 19 and a second turntable 20 are respectively mounted on the opposite side of the two vertical plates 18. A first servo motor 21 and a second servo motor 22 for driving the first turntable 19 and the second turntable 20 to rotate are respectively mounted on the two vertical plates 18. A first mounting plate 9 and a second mounting plate 10 are respectively mounted on the opposite side of the first turntable 19 and the second turntable 20.

[0020] The cooler positioning fixture 4 includes two first connecting plates 23 fixed on the first mounting plate 9. One end of each of the two first connecting plates 23 is provided with a first connecting inclined surface 24. A first support plate 25 is fixed on the two first connecting inclined surfaces 24. The first support plate 25 is provided with a U-shaped limiting space formed by a stop block 26 and multiple side plates 27. The inner side of the stop block 26 is provided with a concave limiting groove 29. The stop block 26 is provided with a pipe opening avoidance opening 30. A clamping component 28 for pressing the cooler into the limiting space is connected to the side plates 27. When the cooler is placed into the limiting space, the limiting groove 29 clamps the front end of the cooler. The welding pipe opening 17 of the cooler is exposed through the pipe opening avoidance opening 30. The clamping component 28 presses the other end of the cooler, thereby fixing the cooler.

[0021] The clamping assembly 28 includes a first cylinder 31 fixed to one side of the side plate 27. The rod end of the first cylinder 31 is rotatably connected to one end of a first connecting rod 32 via a pin. A connecting block 33 is provided on one side of the first cylinder 31's rod. One end of a second connecting rod 34 is rotatably connected to the connecting block 33 via a pin. The other end of the second connecting rod 34 is rotatably connected to the middle position of the first connecting rod 32 via a pin. A third connecting rod 35 is fixed to the other end of the first connecting rod 32, parallel to it. A pressure plate 36 is provided on the side of the third connecting rod 35 facing the stop block 26. After the cooler is installed into the limiting space, the rod of the first cylinder 31 extends, thereby driving the third connecting rod 35 and the pressure plate 36 to snap onto the cooler, thus clamping the cooler.

[0022] The corrugated pipe positioning fixture 5 includes two second connecting plates 37 fixed on the second mounting plate 10. One end of each of the two second connecting plates 37 is provided with a second connecting slope 38. A T-shaped second support plate 39 is fixed on each of the two second connecting slopes 38. The horizontal part of the second support plate 39 is fixed on the second connecting slope 38. A gripper cylinder 40 is provided on the back of the horizontal part of the second support plate 39. Each of the two gripper fingers 41 of the gripper cylinder 40 is fixed with an L-shaped clamping plate 42 distributed on both sides of the vertical part of the second support plate 39. The horizontal part of the L-shaped clamping plate 42 extends toward the upper end face of the second support plate 39. The flange 43 of the corrugated pipe to be welded is clamped between the horizontal part of the L-shaped clamping plate 42 and the vertical part of the second support plate 39.

[0023] The offset detection mechanism 16 includes a second cylinder 44 whose extension direction is parallel to the width direction of the machine base 1. An L-shaped plate 45 is connected to the top rod of the second cylinder 44. The upper end face of the L-shaped plate 45 is connected to a first laser displacement sensor 46 for detecting the radial offset of the welded pipe opening 17 of the cooler and a second laser displacement sensor 47 for detecting the axial offset via a bracket. Both the second laser displacement sensor 47 and the first laser displacement sensor 46 are connected to a control terminal located on one side of the machine base 1. After the cooler and the bellows are installed, the top rod of the second cylinder 44 extends. The first laser displacement sensor 46 scans the top end of the cooler pipe opening to detect the radial offset of the welded pipe opening 17, and the second displacement sensor scans the end face of the welded pipe opening 17 to detect the axial offset.

[0024] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A cooler bellows welding apparatus characterized by: The machine includes a machine base, on which two axially horizontally arranged first and second rotating mechanisms are provided. The rotating ends of the first and second rotating mechanisms are respectively connected to a cooler positioning fixture and a bellows positioning fixture. The bottom end of the second rotating mechanism is connected to a slide plate, which is slidably mounted on the machine base via a transverse slide rail. A welding torch is connected to the machine base via an XYZ axis moving module. An offset detection mechanism is provided on the machine base via a bracket.

2. A cooler bellow welding apparatus as defined in claim 1, wherein: Both the first rotating mechanism and the second rotating mechanism include vertical plates mounted on the machine base. A first turntable and a second turntable are respectively provided on the opposite side of the two vertical plates. A first servo motor and a second servo motor for driving the first turntable and the second turntable to rotate are respectively provided on the two vertical plates. A first mounting plate and a second mounting plate are respectively provided on the opposite side of the first turntable and the second turntable.

3. A cooler bellow welding apparatus as defined in claim 2, wherein: The cooler positioning fixture includes two first connecting plates fixed on the first mounting plate. One end of each of the two first connecting plates is provided with a first connecting slope. A first support plate is fixed on the two first connecting slopes. The first support plate is provided with a U-shaped limiting space formed by a stop block and multiple side plates. The inner side of the stop block is provided with a concave limiting groove. The stop block is provided with a pipe opening clearance. A clamping component for pressing the cooler into the limiting space is connected to the side plate.

4. A cooler bellow welding apparatus as defined in claim 3, wherein: The clamping assembly includes a first cylinder fixed to one side of the side plate. The rod end of the first cylinder is rotatably connected to one end of a first connecting rod via a pin. A connecting block is provided at the end of the first cylinder on one side of its rod. One end of a second connecting rod is rotatably connected to the connecting block via a pin. The other end of the second connecting rod is rotatably connected to the middle position of the first connecting rod via a pin. A third connecting rod is fixed to the other end of the first connecting rod, parallel to it. A pressure plate is provided on the side of the third connecting rod facing the stop block.

5. A cooler bellow welding apparatus as defined in claim 2, wherein: The corrugated pipe positioning fixture includes two second connecting plates fixed on the second mounting plate. One end of each of the two second connecting plates is provided with a second connecting slope. A T-shaped second support plate is fixed on each of the two second connecting slopes. The horizontal portion of the second support plate is fixed on the second connecting slope. A gripper cylinder is provided on the back of the horizontal portion of the second support plate. Each of the two gripper fingers of the gripper cylinder is fixed with an L-shaped clamping plate distributed on both sides of the vertical portion of the second support plate. The horizontal portion of the L-shaped clamping plate extends toward the upper surface of the second support plate. The flange of the corrugated pipe to be welded is clamped between the horizontal portion of the L-shaped clamping plate and the vertical portion of the second support plate.

6. The cooling bellows welding device according to claim 1, characterized in that: The offset detection mechanism includes a second cylinder whose extension direction is parallel to the width direction of the machine tool. An L-shaped plate is connected to the top rod of the second cylinder. The upper surface of the L-shaped plate is connected to a first laser displacement sensor for detecting the radial offset of the welded pipe opening of the cooler and a second laser displacement sensor for detecting the axial offset via a bracket. Both the second laser displacement sensor and the first laser displacement sensor are connected to a control terminal located on one side of the machine tool.

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