Welding device for finned radiator

Abstract

The invention relates to the technical field of finned radiator welding, in particular to a welding device for a finned radiator. According to the technical scheme, the welding device comprises a conveying frame and welding heads, lifting grooves are formed in the conveying frame at equal intervals, lifting frames are installed in the lifting grooves, the welding heads are installed in the side walls of the two ends of the conveying frame, and driving assemblies for driving the welding heads to move are arranged in the lifting grooves and correspond to the welding heads. The interior of the lifting frame is divided into a bottom cavity and an upper end cavity through a partition plate, and conveying wheels are arranged on the side wall of the bottom cavity, the side wall of the upper end cavity and the side wall of the conveying frame. The multiple lifting frames are arranged on the conveying frame, cooling fins on the lifting frames can be welded through falling of the lifting frames, in the subsequent feeding process, the lifting frames at different welding positions can be sequentially used for welding, setting of multiple welding positions is achieved on the same conveying frame, the working efficiency is improved, and the welding quality is improved. And compared with a plurality of conveying frame lines, the whole cost is relatively low.

Description

Technical Field

[0001] The present invention relates to the technical field of plate-type radiator welding, in particular to a welding device for a plate-type radiator. Background Art

[0002] A fin radiator is typically made of stacked metal fins, which are interconnected to form a device with a larger heat dissipation surface area. A transformer radiator utilizes two steel plates to form a fin group, with an internal cavity for the cooling flow of transformer oil. Multiple fin groups are then connected by pipes. The excellent thermal conductivity, large heat capacity, and high heat dissipation efficiency of the steel plate material allow heat to be dissipated quickly and effectively, achieving efficient heat dissipation through evenly distributed heat. During automated production welding, each fin group needs to be welded at both ends to ensure structural strength.

[0003] During the welding process, the welding device is usually installed on a conveyor rack, and the two ends are welded and fixed using the welding head added to the conveyor rack. During the whole process, the welding of one end can be carried out before the welding of the other end. The operation is relatively limited, resulting in low work efficiency. In addition, there is usually only one welding processing position on the conveyor rack without any diversion structure. When the welding length is long, it is very likely that the welding position will be stuck. It takes a long time to wait before the welding process of the next sheet can be carried out, which further reduces the work efficiency. In addition, when the sheets are carefully conveyed, some deviations are inevitable in the conveyor rack. If they are not calibrated and fixed, the weld position cannot be completely aligned with the welding head, which will lead to a decrease in the overall welding quality. Summary of the Invention

[0004] The object of the present invention is to provide a welding device for a fin-type heat sink to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a conveying frame and a welding head, the conveying frame is provided with lifting slots at equal intervals, a lifting frame is installed in the lifting slots, the welding head is installed in the side walls at both ends of the conveying frame, a driving component for driving the welding head to move is provided in the lifting slots and at a position corresponding to the welding head, the lifting frame is divided into a bottom cavity and an upper cavity by a partition, the bottom cavity, the upper cavity and the side walls of the conveying frame are all provided with conveying wheels, the conveying frame and the side walls of the lifting frame are both provided with induction motors that drive the conveying wheels to rotate independently, a lifting component for driving the lifting frame to move is provided in the lifting slots, and a calibration component is provided in the lifting frame.

[0006] Preferably, the driving assembly includes a mounting groove, which is opened on the side wall of the lifting groove and is aligned with the welding head. A telescopic plate is slidably connected in the mounting groove, and a mounting plate is slidably connected to the front end of the telescopic plate. The welding head is fixed on the mounting plate.

[0007] Preferably, an ejection telescopic cylinder is fixed to the inner side wall of the mounting groove, the output end of the ejection telescopic cylinder is fixed on the telescopic plate, a threaded rod is rotatably connected inside the telescopic plate, a servo motor for driving the threaded rod to rotate is provided on the outer side of the telescopic plate, the inner side of the mounting plate is located inside the telescopic plate, the threaded rod passes through the inner side of the mounting plate, and is threadedly connected to the mounting plate.

[0008] Preferably, the lifting assembly includes a lifting telescopic cylinder and a guide block, the lifting telescopic cylinder is fixed at the bottom of the lifting slot, and the output end is fixed at the bottom of the lifting frame, the guide block is fixed to the outer side wall of the lifting frame, and the side wall of the lifting slot is provided with a guide groove adapted to the guide block.

[0009] Preferably, the calibration assembly includes a stopper and a calibration plate, bottom blocks are fixed at both ends of the bottom cavity of the lifting frame, the stopper is installed at the upper end of the bottom block, a cylinder for driving the stopper to extend and retract is installed in the bottom block, a pair of bottom plates are fixed at the bottom of the lifting frame, the calibration plates are slidably connected to the bottom plates and are symmetrically distributed.

[0010] Preferably, a driving groove is opened on the bottom plate, a bidirectional screw is rotatably connected in the driving groove, the bottom of the calibration plate is slidably connected in the driving groove, the bidirectional screw passes through the calibration plate and is threadedly connected to the calibration plate, and a driving motor is fixed on the outside of the bottom plate to drive the bidirectional screw to rotate.

[0011] Preferably, a controller is installed on the conveying frame and at a position corresponding to the lifting frame, and a sensor is installed inside the conveying frame and the lifting frame and between the conveying wheels.

[0012] Preferably, an upper end block is fixed at the bottom of the partition and at a position corresponding to the bottom block, an extrusion block is installed at the bottom of the upper end block, and a hydraulic cylinder for driving the extrusion block to extend and retract is installed in the upper end block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Set up multiple lifting racks on the conveyor rack. By using the falling of the lifting rack, the heat sink on the lifting rack can be welded. When loading materials later, the lifting racks at different welding positions can be used for welding in turn. On the same conveyor rack, multiple welding positions can be set, which improves work efficiency. Compared with setting up multiple conveyor rack lines, the overall cost is relatively low.

[0015] 2. During the welding positioning process, the end is limited by a block, and the calibration plate is used to calibrate both sides to ensure the accuracy of the welding position. At the same time, on the same welding lifting frame, two welding heads are used to perform synchronous welding at both ends, which further improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a partially cutaway side structure of a welding device for a fin-type radiator according to the present invention;

[0017] Figure 2 It is a schematic diagram of a partial structure of a top view of a welding device for a fin-type radiator of the present invention;

[0018] Figure 3 This is a schematic diagram of the appearance structure of the bottom plate of the welding device for the fin type radiator of the present invention;

[0019] Figure 4 This is a schematic diagram of the combined structure of the telescopic plate and the mounting plate of the welding device for the fin-type radiator of the present invention;

[0020] Figure 5 The present invention is a welding device for a fin type radiator Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. Conveying rack; 11. Lifting slot; 12. Controller; 2. Lifting rack; 21. Partition; 22. Guide block; 23. Lifting telescopic cylinder; 24. Upper end block; 25. Extrusion block; 26. Bottom block; 27. Stop block; 3. Conveying wheel; 31. Sensor; 4. Welding head; 41. Mounting slot; 42. Telescopic plate; 43. Mounting plate; 44. Ejecting telescopic cylinder; 45. Threaded rod; 46. Servo motor; 5. Bottom plate; 51. Calibration plate; 52. Drive slot; 53. Bidirectional screw; 54. Drive motor. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5The present invention provides a technical solution: comprising a conveyor frame 1 and a welding head 4, the conveyor frame 1 is provided with lifting slots 11 at equal intervals, a lifting frame 2 is installed in the lifting slots 11, the welding head 4 is installed in the side walls at both ends of the conveyor frame 1, and a driving component that drives the welding head 4 to move is provided in the lifting slots 11 and at a position corresponding to the welding head 4. The lifting frame 2 is divided into a bottom cavity and an upper cavity by a partition 21, and the bottom cavity, the upper cavity and the side wall of the conveyor frame 1 are all provided with conveying wheels 3, and the side walls of the conveyor frame 1 and the lifting frame 2 are both provided with driving transmission components. The feeding wheel 3 is independently rotated by an induction motor, a lifting assembly for driving the lifting frame 2 to rise and fall is provided in the lifting slot 11, a calibration assembly is provided in the lifting frame 2, a controller 12 is installed on the conveying frame 1 and at a position corresponding to the lifting frame 2, a sensor 31 is installed in the conveying frame 1 and the lifting frame 2, and is located between the conveying wheel 3, an upper end block 24 is fixed at the bottom of the partition 21 and at a position corresponding to the bottom block 26, an extrusion block 25 is installed at the bottom of the upper end block 24, and a hydraulic cylinder for driving the extrusion block 25 to extend and retract is installed in the upper end block 24.

[0024] The driving assembly includes a mounting slot 41, which is opened on the side wall of the lifting slot 11 and is aligned with the welding head 4. A telescopic plate 42 is slidably connected in the mounting slot 41, and a mounting plate 43 is slidably connected at the front end of the telescopic plate 42. The welding head 4 is fixed on the mounting plate 43. A push-out telescopic cylinder 44 is fixed on the inner side wall of the mounting slot 41, and the output end of the push-out telescopic cylinder 44 is fixed on the telescopic plate 42. A threaded rod 45 is rotatably connected in the telescopic plate 42, and a servo motor 46 is provided on the outside of the telescopic plate 42 for driving the threaded rod 45 to rotate. The inner side of the mounting plate 43 is located in the telescopic plate 42, and the threaded rod 45 passes through the inner side of the mounting plate 43 and is threadedly connected to the mounting plate 43. By driving the push-out telescopic cylinder 44, the telescopic plate 42 and the mounting plate 43 can be extended from the mounting slot 41 to align the welding head 4 with the welding position. Finally, during welding, the servo motor 46 is used to drive the threaded rod 45 to rotate, driving the mounting plate 43 and the welding head 4 to slide linearly.

[0025] The lifting assembly includes a lifting and telescopic cylinder 23 and a guide block 22. The lifting and telescopic cylinder 23 is fixed to the bottom of the lifting groove 11, and the output end is fixed to the bottom of the lifting frame 2. The guide block 22 is fixed to the outer wall of the lifting frame 2. The side wall of the lifting groove 11 is provided with a guide groove compatible with the guide block 22. The cooperation between the guide block 22 and the guide groove can ensure that the lifting frame 2 can move up and down in a straight line.

[0026] The calibration assembly includes a stopper 27 and a calibration plate 51. Bottom blocks 26 are fixed at both ends of the bottom cavity of the lifting frame 2. The stopper 27 is installed at the upper end of the bottom block 26. A cylinder for driving the stopper 27 to extend and retract is installed in the bottom block 26. A pair of bottom plates 5 are fixed at the bottom of the lifting frame 2. The calibration plate 51 is slidably connected to the bottom plate 5 and is symmetrically distributed. A driving groove 52 is opened on the bottom plate 5. A bidirectional screw rod 53 is rotatably connected in the driving groove 52. The bottom of the calibration plate 51 is slidably connected in the driving groove 52. The bidirectional screw rod 53 passes through the calibration plate 51 and is threadedly connected to the calibration plate 51. A driving motor 54 is fixed on the outside of the bottom plate 5 to drive the bidirectional screw rod 53 to rotate. The drive of the driving motor 54 can drive the bidirectional screw rod 53 to rotate, and then the calibration plate 51 performs synchronous reverse movement to align the heat sink to the middle position and limit it to ensure that the heat sink is in the middle position.

[0027] Working principle: First, connect the entire device to an external power supply. During the heat sink welding process, the conveyor rack 1 is used to convey the heat sink. At this time, the position of the heat sink on the conveyor rack 1 can be determined by using the sensor 31. When the heat sink reaches the designated conveying wheel 3 position, the conveying wheel 3 at that position is driven to rotate. There is no need to keep all the conveying wheels 3 rotating all the time, thereby achieving the purpose of energy saving. Secondly, during welding, the heat sink will enter the bottom cavity of the lifting rack 2. At this time, the end block 27 will be extended from the bottom block 26 by the drive of the cylinder to limit the depth of entry of the heat sink. When the heat sink is fully entered, the lifting rack 2 can be driven by the lifting and telescopic cylinder 23 to fall until the welding position is aligned with the welding head 4, and then the welding operation is performed. At this time, the upper end cavity above the lifting rack 2 is aligned with the conveying position of the conveyor rack 1. While welding, it does not affect the normal conveying of other heat sinks, and enters the next lifting rack 2 position for welding operations. Using one conveyor rack 1, the purpose of multi-station welding operation is achieved, reducing waiting time. The time can greatly improve the working efficiency. Before welding, the driving motor 54 can be used to drive the bidirectional screw rod 53 to rotate, and then the calibration plate 51 can be synchronously reversed to align the heat sink to the middle position to ensure that the heat sink is in the middle position, which is more convenient for the alignment of the welding head 4 and improves the welding quality. After calibration, the hydraulic cylinder can be used to eject the extrusion block 25, squeeze and fix the end of the heat sink, and then extend the welding head 4, and slide the welding head 4 on the outside of the telescopic plate 42 to achieve the purpose of welding at both ends, further improving the working efficiency. After the welding head 4 is retracted to the inside of the mounting groove 41, it does not affect the normal lifting of the lifting frame 2. In this process, the driving of the ejection telescopic cylinder 44 can be used to extend the telescopic plate 42 and the mounting plate 43 from the mounting groove 41 to align the welding head 4 with the welding position. Finally, during welding, the servo motor 46 is used to drive the threaded rod 45 to rotate, driving the mounting plate 43 and the welding head 4 to slide linearly to complete the purpose of complete welding.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a fin-type heat sink, comprising a conveyor frame (1) and a welding head (4), characterized in that: The conveying frame (1) is provided with lifting slots (11) at equal intervals, a lifting frame (2) is installed in the lifting slots (11), the welding head (4) is installed in the side walls at both ends of the conveying frame (1), a driving component for driving the welding head (4) to move is provided in the lifting slots (11) and at a position corresponding to the welding head (4), the lifting frame (2) is divided into a bottom cavity and an upper cavity by a partition (21), the bottom cavity, the upper cavity and the side walls of the conveying frame (1) are all provided with conveying wheels (3), the side walls of the conveying frame (1) and the lifting frame (2) are both provided with induction motors for driving the conveying wheels (3) to rotate independently, a lifting component for driving the lifting frame (2) to move is provided in the lifting slots (11), and a calibration component is provided in the lifting frame (2).

2. The fin heat sink welding device according to claim 1, wherein: The driving assembly includes a mounting groove (41), the mounting groove (41) is opened on the side wall of the lifting groove (11), and is aligned with the welding head (4), a telescopic plate (42) is slidably connected in the mounting groove (41), a front end of the telescopic plate (42) is slidably connected to a mounting plate (43), and the welding head (4) is fixed on the mounting plate (43).

3. The fin heat sink welding device according to claim 2, wherein: An ejection telescopic cylinder (44) is fixed to the inner wall of the mounting groove (41), and an output end of the ejection telescopic cylinder (44) is fixed to the telescopic plate (42). A threaded rod (45) is rotatably connected to the inside of the telescopic plate (42). A servo motor (46) for driving the threaded rod (45) to rotate is provided on the outside of the telescopic plate (42). The inner side of the mounting plate (43) is located inside the telescopic plate (42), and the threaded rod (45) passes through the inner side of the mounting plate (43) and is threadedly connected to the mounting plate (43).

4. The fin heat sink welding device according to claim 1, wherein: The lifting assembly comprises a lifting telescopic cylinder (23) and a guide block (22); the lifting telescopic cylinder (23) is fixed to the bottom of the lifting slot (11), and the output end is fixed to the bottom of the lifting frame (2); the guide block (22) is fixed to the outer wall of the lifting frame (2); and the side wall of the lifting slot (11) is provided with a guide slot adapted to the guide block (22).

5. The fin heat sink welding device according to claim 1, wherein: The calibration assembly comprises a stopper (27) and a calibration plate (51); bottom blocks (26) are fixed at both ends of the bottom cavity of the lifting frame (2); the stopper (27) is installed on the upper end of the bottom block (26); a cylinder for driving the stopper (27) to extend and retract is installed in the bottom block (26); a pair of bottom plates (5) are fixed at the bottom of the lifting frame (2); the calibration plates (51) are slidably connected to the bottom plates (5) and are symmetrically distributed.

6. The fin heat sink welding device according to claim 5, characterized in that: A driving groove (52) is provided on the bottom plate (5), a bidirectional screw rod (53) is rotatably connected in the driving groove (52), the bottom of the calibration plate (51) is slidably connected in the driving groove (52), the bidirectional screw rod (53) passes through the calibration plate (51) and is threadedly connected to the calibration plate (51), and a driving motor (54) for driving the bidirectional screw rod (53) to rotate is fixed on the outside of the bottom plate (5).

7. The fin heat sink welding device according to claim 1, wherein: A controller (12) is installed on the conveying frame (1) and at a position corresponding to the lifting frame (2). A sensor (31) is installed inside the conveying frame (1) and the lifting frame (2) and between the conveying wheels (3).

8. The fin heat sink welding device according to claim 1, wherein: An upper end block (24) is fixed at the bottom of the partition (21) and at a position corresponding to the bottom block (26). An extrusion block (25) is installed at the bottom of the upper end block (24). A hydraulic cylinder for driving the extrusion block (25) to extend and retract is installed in the upper end block (24).

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