A turnover device for radiator welding processing

Abstract

The utility model provides a kind of turnover device for radiator welding processing belongs to welding auxiliary equipment technical field.The utility model embodiment provides the turnover device for radiator welding processing, is turned over by turnover mechanism and drives welding table, so that welding table drives finned tube radiator to be turned over to the vertical state placement of the axial perpendicularity of heat dissipation pipe level surface, it is convenient for staff to weld U-shaped tube on the port of each heat dissipation pipe one by one, so that each port of adjacent root heat dissipation pipe is conducted by U-shaped tube.In the process of welding U-shaped tube in the port of heat dissipation pipe, since heat dissipation pipe is placed in the vertical state of the axial perpendicularity of level surface, effectively avoid the condition that welding flux slides along the outer circumferential surface of heat dissipation pipe, to prevent the phenomenon that welding spot is uneven in the welding place of the port of heat dissipation pipe and U-shaped tube, can ensure that the welding spot of the port of heat dissipation pipe and U-shaped tube is more uniform, it is favorable to improve the welding quality of heat dissipation pipe and U-shaped tube.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding auxiliary equipment, and in particular, relates to a flipping device for radiator welding processing. Background Technology

[0002] Finned tube radiators are one of the most widely used heat exchange devices in gas-liquid heat exchangers. They are commonly used in automotive engine cooling systems, effectively transferring heat generated by the engine to the surrounding air during operation. Therefore, the quality of the welding of finned tube radiators is crucial for maintaining normal engine operation. Finned tube radiators are typically assembled from multiple heat exchange tubes and fins, with U-shaped tubes connecting the ends of adjacent heat exchange tubes. Currently, when welding the U-shaped tubes to the ends of the heat exchange tubes, workers place the finned tube radiator horizontally on the welding table. Because the axis of the heat exchange tubes is parallel to the horizontal plane, the flux slides along the outer circumference of the heat exchange tubes under gravity during the welding process. This can easily lead to uneven weld spots at the weld between the heat exchange tube ends and the U-shaped tubes, reducing the welding quality and causing air or liquid leaks during the use of the finned tube radiator. Utility Model Content

[0003] Based on the aforementioned problems in the prior art, the purpose of this utility model embodiment is to provide a flipping device for radiator welding processing, which can flip the welding table and the finned tube radiator on the welding table so that the finned tube radiator is placed in a vertical state with the axis of the heat dissipation tube perpendicular to the horizontal plane. This avoids the flux sliding along the outer circumference of the heat dissipation tube during the welding of the U-shaped tube at the end of the heat dissipation tube, thus preventing uneven weld spots at the weld between the end of the heat dissipation tube and the U-shaped tube. This solves the technical problem in the prior art where the finned tube radiator is placed horizontally on the welding table, and because the axis of the heat dissipation tube is parallel to the horizontal plane, the flux slides along the outer circumference of the heat dissipation tube during the welding of the U-shaped tube at the end of the heat dissipation tube, resulting in uneven weld spots at the weld between the end of the heat dissipation tube and the U-shaped tube.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a flipping device for radiator welding processing, comprising: Base; A flipping mechanism is disposed on the base. The flipping mechanism includes a base disposed on the base, a first rotating shaft rotatably disposed on the base via a bearing, a first gear fixedly mounted on the first rotating shaft, a second gear rotatably disposed on the base and meshing with the first gear, a first drive motor driving the second gear to rotate, and a rotating bracket fixedly connected to the first rotating shaft. The first drive motor is fixedly disposed on the base, and the motor shaft of the first drive motor is connected to the second gear. A welding table is mounted on the rotating support, and the flipping mechanism can rotate the welding table from a horizontal position to a vertical position. Positioning components for positioning the finned tube heat sink to be welded on the welding table; and A support component is disposed on the base. The support component can stop and support the rotating bracket when the flipping mechanism drives the welding table to flip to a preset position, so that the welding table is placed vertically on the base.

[0005] Furthermore, the support assembly includes a support base fixedly mounted on the base, a stop support for stopping and supporting the rotating bracket, a guide slide rod mounted on the stop support, and a spring sleeved on the guide slide rod. A stepped hole is provided on the top surface of the support base. The end of the guide slide rod away from the stop support passes through the large hole of the stepped hole and is slidably inserted into the small hole of the stepped hole. The bottom end of the spring abuts against the stepped surface of the stepped hole, and the top end of the spring abuts against the stop support.

[0006] Furthermore, the flipping device for radiator welding processing also includes a rotating mechanism for driving the base to rotate. The rotating mechanism includes a sleeve vertically mounted on the base, a second rotating shaft rotatably mounted in the sleeve, a turntable connected to the second rotating shaft, a third gear integrally formed with the turntable, a fourth gear meshing with the third gear, a second drive motor driving the fourth gear to rotate, and a rolling assembly that rolls and supports the turntable on the top of the sleeve. The second drive motor is fixedly mounted on the base and / or the sleeve, and the motor shaft of the second drive motor is connected to the fourth gear. The base is fixedly mounted on the turntable.

[0007] Furthermore, the flipping device for radiator welding processing also includes a clamping mechanism for clamping the turntable to position the turntable. The clamping mechanism includes a pair of arc-shaped jaws arranged on opposite sides of the turntable, and two cylinders that drive the two arc-shaped jaws to move closer to or further away from each other. The cylinders are connected to the base and / or the support.

[0008] Furthermore, the rolling assembly includes a plurality of balls arranged in a ring array on the bottom surface of the turntable. The bottom surface of the turntable is provided with a hemispherical groove for accommodating and positioning the balls. Each ball is rotatably disposed in the corresponding hemispherical groove. The top surface of the sleeve is provided with a first annular groove with a semi-circular cross-section. The portion of each ball protruding from the bottom surface of the turntable is placed in the first annular groove.

[0009] Furthermore, the support base is cylindrical, and a plurality of stepped holes are equally spaced along the circumference of the top surface of the support base. The stop support is a support ring that matches the shape and size of the cylindrical support base. The support ring is provided with guide slide rods at the positions corresponding to each of the stepped holes, and each guide slide rod is fitted with a spring.

[0010] Furthermore, the top surface of the support ring is provided with a second annular groove with a semi-circular cross-section, and the rotating bracket is provided with a hemispherical protrusion. When the rotating bracket is supported on the support ring, the hemispherical protrusion can be placed into the second annular groove, and the hemispherical protrusion slides in contact with the second annular groove.

[0011] Furthermore, the flipping mechanism includes a third rotating shaft rotatably mounted on the base via a bearing, the second gear being fixedly mounted on the third rotating shaft, and the motor shaft of the first drive motor being connected to the third rotating shaft.

[0012] Furthermore, the diameter of the first gear is 3 to 5 times the diameter of the second gear.

[0013] Furthermore, the welding table is provided with a U-shaped positioning groove. The positioning component includes a positioning post, an anti-disengagement ring at one end of the positioning post, a threaded post at the other end of the positioning post, and a locking nut screwed onto the threaded post. The U-shaped positioning groove is provided with a positioning hole for the positioning post to be inserted. When the positioning post is inserted into the positioning hole, the positioning post can limit the finned tube heat sink in the U-shaped positioning groove.

[0014] Compared with the prior art, one or more technical solutions in the embodiments of this utility model have at least one of the following beneficial effects: The flipping device for radiator welding in this embodiment of the invention drives the welding table to flip, so that the welding table rotates the finned tube radiator to a vertical position where the axial direction of the heat dissipation tubes is perpendicular to the horizontal plane. This facilitates the worker to weld U-shaped tubes one by one to the ends of each heat dissipation tube, allowing the ends of adjacent heat dissipation tubes to be connected through the U-shaped tubes. During the welding of U-shaped tubes to the ends of the heat dissipation tubes, because the heat dissipation tubes are placed in a vertical position with their axial direction perpendicular to the horizontal plane, the flux is effectively prevented from sliding along the outer circumference of the heat dissipation tubes. This prevents uneven weld spots at the weld between the ends of the heat dissipation tubes and the U-shaped tubes, ensuring more uniform weld spots at the weld between the ends of the heat dissipation tubes and the U-shaped tubes. This is beneficial for improving the welding quality of the heat dissipation tubes and U-shaped tubes and reducing the occurrence of air or liquid leaks during the use of the finned tube radiator. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural schematic diagram of the flipping device for radiator welding processing provided by this utility model; Figure 2 for Figure 1 A top view of the flipping device used for radiator welding processing; Figure 3 for Figure 1 A cross-sectional view of the flipping device used for radiator welding processing shown in the figure; Figure 4 Another three-dimensional structural schematic diagram of the flipping device for radiator welding processing provided by this utility model; Figure 5 Assembly drawing of the flipping mechanism and rotating mechanism provided by this utility model; Figure 6 Another assembly drawing of the flipping mechanism and rotating mechanism provided by this utility model; Figure 7 Assembly drawing of the turntable and base provided for this utility model; Figure 8 An exploded view of the welding station and positioning assembly provided by this utility model.

[0017] The following are the labeling elements in the figure: 1-Base; 2-Tilting mechanism; 21-Base; 22-First rotating shaft; 23-First gear; 24-Second gear; 25-First drive motor; 26-Rotating bracket; 27-Stop support structure; 28-Third rotating shaft; 3-Welding station; 31-U-shaped positioning slot; 32-Positioning hole; 4-Positioning assembly; 41-Positioning post; 42-Anti-loosening ring; 43-Threaded post; 44-Locking nut; 5-Support assembly; 51-Support base; 511-Stepped hole; 52-Stop support; 521-Second annular groove; 53-Guide slide rod; 54-Spring; 6-Rotating mechanism; 61-Sleeve; 611-First annular groove; 62-Second rotating shaft; 63-Turntable; 631-Hemispherical groove; 64-Third gear; 65-Fourth gear; 66-Second drive motor; 67-Ball bearing; 7-Clamping mechanism; 71-Arc-shaped gripper; 72-Cylinder; 8-Hemispherical protrusion; 9-Finned tube radiator; 91-Radiation tube. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when an element is referred to as "connected to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "attached" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0021] Please refer to the following: Figures 1 to 8 The flipping device for radiator welding processing provided in this embodiment of the present invention will now be described. Please refer to the following for further details. Figure 1 , Figure 2 and Figure 3 The flipping device for radiator welding provided in this embodiment includes a base 1, a flipping mechanism 2, a welding table 3, a positioning component 4, and a support component 5. The flipping mechanism 2 is mounted on the base 1. Please refer to further details. Figure 3 , Figure 5 and Figure 6The flipping mechanism 2 includes a base 21 mounted on the base 1, a first rotating shaft 22 rotatably mounted on the base 21 via bearings, a first gear 23 fixedly mounted on the first rotating shaft 22, a second gear 24 rotatably mounted on the base 21 and meshing with the first gear 23, a first drive motor 25 driving the second gear 24 to rotate, and a rotating bracket 26 fixedly connected to the first rotating shaft 22. The first drive motor 25 is fixedly mounted on the base 21, and its motor shaft is connected to the second gear 24. The first drive motor 25 can be, but is not limited to, a servo motor with a reducer. The welding table 3 is mounted on the rotating bracket 26. The flipping mechanism 2 can rotate the welding table 3 from a horizontal position to a vertical position, thereby rotating the finned tube heat sink 9 to be welded on the welding table 3 from a horizontal position to a vertical position, so that the finned tube heat sink 9 to be welded is placed in a vertical position with the axis of the heat sink 91 perpendicular to the horizontal plane. Positioning component 4 is used to position the finned tube heat sink 9 to be welded on the welding table 3. Positioning component 4 is set on the welding table 3. Support component 5 is set on the base 1. When the flipping mechanism 2 drives the welding table 3 to flip to the preset position, the support component 5 can stop and support the rotating bracket 26 so that the welding table 3 is placed vertically on the base 1. At this time, the finned tube heat sink 9 to be welded is placed in a vertical state with the axis of the heat sink 91 perpendicular to the horizontal plane.

[0022] The flipping device for radiator welding provided in this embodiment of the utility model only requires the first drive motor 25 to drive the second gear 24 to rotate the first gear 23, the first gear 23 to rotate the first rotating shaft 22, and the first rotating shaft 22 to flip the welding table 3 connected to the rotating bracket 26, thereby adjusting the flipping angle of the welding table 3 through the rotating mechanism 6. When the welding table 3 is flipped to a horizontal position, the first drive motor 25 stops working, and the finned tube radiator 9 to be welded is placed on the welding table 3 in a horizontal position with the axis of the heat dissipation tube 91 parallel to the horizontal plane. Then, the first drive motor 25 is started again, and the flipping mechanism 2 drives the welding table 3 to flip 90° to the left (e.g., ...). Figure 1 As shown), at this time, the rotating bracket 26 of the flipping mechanism 2 is stopped by the support component 5, and the rotating bracket 26 of the flipping mechanism 2 is supported on the support component 5. The welding table 3 is flipped from the previous horizontal position to the vertical position, so that the finned tube heat sink 9 to be welded is placed in a vertical position with the axis of the heat sink 91 perpendicular to the horizontal plane, and the top end of each heat sink 91 is at the top and the bottom end of each heat sink 91 is at the bottom, which makes it convenient for the workers to weld the U-shaped tubes one by one to the bottom end of each heat sink 91, so that the bottom end of adjacent heat sink 91 is connected through the U-shaped tubes. When the welding of the U-shaped tubes to the bottom end of each heat sink 91 is completed, it is only necessary to start the first drive motor 25, which drives the welding table 3 to rotate 180° to the right through the flipping mechanism 2 (e.g., Figure 4 As shown), at this time, the rotating bracket 26 of the flipping mechanism 2 is stopped by the support component 5, and the rotating bracket 26 of the flipping mechanism 2 is supported on the support component 5. The welding table 3 is flipped from the previous upright vertical position to the inverted vertical position, so that the finned tube heat sink 9 to be welded is placed in a vertical position with the axis of the heat sink 91 perpendicular to the horizontal plane, and the bottom end port of each heat sink 91 is located above, and the top end port of each heat sink 91 is located below, which makes it convenient for the staff to weld the U-shaped tube to the top end port of each heat sink 91 one by one, so that the top end ports of adjacent heat sink 91 are connected through the U-shaped tube. During the welding of the U-shaped tube to the bottom end of the heat sink 91, the heat sink 91 is placed vertically with its axis perpendicular to the horizontal plane, which effectively prevents the flux from sliding along the outer circumference of the heat sink 91. This prevents uneven weld spots at the weld between the heat sink 91 and the U-shaped tube, ensuring more uniform weld spots at the weld between the heat sink 91 and the U-shaped tube. This improves the welding quality of the heat sink 91 and the U-shaped tube and reduces the occurrence of air or liquid leaks during the use of the finned tube radiator 9.

[0023] Please refer to the following: Figure 1 , Figure 2 and Figure 3In some embodiments, the support assembly 5 includes a support base 51 fixedly mounted on the base 1, a stop support 52 for stopping and supporting the rotating bracket 26, a guide slide rod 53 mounted on the stop support 52, and a spring 54 sleeved on the guide slide rod 53. A stepped hole 511 is formed on the top surface of the support base 51. The end of the guide slide rod 53 away from the stop support 52 passes through the large hole of the stepped hole 511 and is slidably inserted into the small hole of the stepped hole 511. The bottom end of the spring 54 abuts against the stepped surface of the stepped hole 511, and the top end of the spring 54 abuts against the stop support 52. In this embodiment, the stop support 52 stops and limits the rotating bracket 26, enabling the rotating mechanism 6 to stably and reliably rotate the welding table 3 to a vertical position where the axial direction of the heat sink 91 is perpendicular to the horizontal plane. Since the stop support 52 also supports the rotating bracket 26, it ensures the stability and reliability of the welding table 3 in a vertical position, which is beneficial for workers to weld the heat dissipation pipe 91 and the U-shaped pipe on the welding table 3. In addition, since the stop support 52 is movably installed on the top of the support base 51 through the sliding fit structure between the guide slide rod 53 and the stepped hole 511, and the guide slide rod 53 is fitted with a spring 54, at the moment the rotating frame contacts the stop support 52, the guide slide rod 53 guides the stop support 52 to move downward along the axial direction of the guide slide rod 53. At this time, the stop support 52 compresses the spring 54, and the spring 54 can buffer the stop support 52, thereby avoiding a strong impact on the stop support 52 and the support base 51 at the moment the rotating frame contacts the stop support 52.

[0024] Please refer to the following: Figure 2 , Figure 3 and Figure 5In some embodiments, the flipping device for radiator welding processing further includes a rotating mechanism 6 for driving the base 21 to rotate. The rotating mechanism 6 includes a sleeve 61 vertically disposed on the base 1, a second rotating shaft 62 rotatably disposed in the sleeve 61, a turntable 63 connected to the second rotating shaft 62, a third gear 64 integrally formed with the turntable 63, a fourth gear 65 meshing with the third gear 64, a second drive motor 66 driving the fourth gear 65 to rotate, and a rolling assembly for rollingly supporting the turntable 63 on the top of the sleeve 61. The second drive motor 66 is fixedly disposed on the base 1 and / or the sleeve 61. The motor shaft of the second drive motor 66 is connected to the fourth gear 65. The base 21 is fixedly disposed on the turntable 63. In this embodiment, the second drive motor 66 drives the fourth gear 65 to rotate the third gear 64, which in turn drives the turntable 63 to rotate. The turntable 63 then drives the flipping mechanism 2 and the welding table 3 on the flipping mechanism 2 to rotate. This allows the rotating mechanism 6 to rotate the finned tube heat sink 9 to be welded, making it easier for workers to rotate the finned tube heat sink 9 to a position favorable for welding. In addition, the base 21 is also provided with a stop and a stop support structure 27 that supports the rotating bracket 26 near the end of the first rotating shaft 22.

[0025] Please refer to the following: Figure 2 , Figure 3 and Figure 6 In some embodiments, the flipping device for radiator welding further includes a clamping mechanism 7 for clamping and positioning the turntable 63. The clamping mechanism 7 includes a pair of arc-shaped grippers 71 arranged on opposite sides of the turntable 63, and two cylinders 72 that drive the two arc-shaped grippers 71 to move closer or further apart. The cylinders 72 are connected to the base 1 and / or the support 51. In this embodiment, the two cylinders 72 drive the two arc-shaped grippers 71 to move closer or further apart. When the two arc-shaped grippers 71 move closer, the turntable 63 is clamped, preventing it from rotating. This helps to ensure that the flipping mechanism 2 and the welding table 3 on the turntable 63 remain in a fixed position for welding. When the two arc-shaped grippers 71 move further apart, the turntable 63 is released, allowing it to rotate. At this time, the second drive motor 66 can drive the turntable 63 to rotate, and the rotating mechanism 6 can then rotate and adjust the finned tube radiator 9 to be welded. It should be noted that cylinder 72 can be, but is not limited to, a double-rod cylinder 72, and the second drive motor 66 can be, but is not limited to, a servo motor with a reducer.

[0026] Please refer to the following: Figure 3 , Figure 6 and Figure 7In some embodiments, the rolling assembly includes a plurality of balls 67 arranged in a circular array on the bottom surface of the turntable 63. The bottom surface of the turntable 63 has hemispherical grooves 631 for accommodating and positioning the balls 67. Each ball 67 is rolled within its corresponding hemispherical groove 631. The top surface of the sleeve 61 has a first annular groove 611 with a semi-circular cross-section, and the portion of each ball 67 protruding from the bottom surface of the turntable 63 is placed within the first annular groove 611. In this embodiment, by rolling a plurality of balls 67 on the bottom surface of the turntable 63 and providing a first annular groove 611 on the top surface of the sleeve 61 to guide the movement of the balls 67, the friction between the turntable 63 and the sleeve 61 can be reduced, enhancing the smoothness of the turntable 63's rotation. It should be noted that the balls 67 can be, but are not limited to, steel balls.

[0027] Please refer to the following: Figure 1 , Figure 3 and Figure 4 In some embodiments, the support base 51 is cylindrical, and a plurality of stepped holes 511 are equally spaced along the circumference of the top surface of the support base 51. The stop support member 52 is a support ring that matches the shape and size of the cylindrical support base 51. Guide slide rods 53 are respectively provided on the support ring at the positions corresponding to each stepped hole 511, and springs 54 are sleeved on each guide slide rod 53. In this embodiment, by setting the stop support member 52 as a support ring, and providing a plurality of stepped holes 511 equally spaced along the circumference of the top surface of the support base 51, and providing guide slide rods 53 at the positions corresponding to each stepped hole 511, and sleeved on each guide slide rod 54, the buffering and shock absorption performance of the stop support member 52 at the moment of contact with the rotating bracket 26 can be improved.

[0028] Please refer to the following: Figure 1 , Figure 3 and Figure 5 In some embodiments, the top surface of the support ring is provided with a second annular groove 521 with a semi-circular cross-section, and the rotating bracket 26 is provided with a hemispherical protrusion 8. When the rotating bracket 26 is supported on the support ring, the hemispherical protrusion 8 can be placed into the second annular groove 521, and the hemispherical protrusion 8 slides in contact with the second annular groove 521. In this embodiment, when the rotating bracket 26 is supported on the support ring and the rotating mechanism 6 is not working, the hemispherical protrusion 8 can be placed into the second annular groove 521. The locking action between the second annular groove 521 and the hemispherical protrusion 8 can position the rotating bracket 26, enhancing the stability of the rotating bracket 26 supported on the support ring. When the rotating bracket 26 is supported on the support ring and the rotating mechanism 6 is working, since the hemispherical protrusion 8 slides in contact with the second annular groove 521, the movement of the hemispherical protrusion 8 is guided by the second annular groove 521, which can reduce the friction between the rotating bracket 26 and the support ring.

[0029] Please refer to the following: Figure 5 , Figure 6 and Figure 7 In some embodiments, the flipping mechanism 2 includes a third rotating shaft 28 rotatably mounted on a base 21 via bearings, a second gear 24 fixedly mounted on the third rotating shaft 28, and a motor shaft of a first drive motor 25 connected to the third rotating shaft 28. The first drive motor 25 is fixedly mounted on the base 1 via a motor mount, and the first drive motor 25 drives the third rotating shaft 28 to rotate, thereby enabling the third rotating shaft 28 to drive the second gear 24 to rotate.

[0030] Please refer to the following: Figure 3 , Figure 5 and Figure 6 In some embodiments, the diameter of the first gear 23 is 3 to 5 times the diameter of the second gear 24, which can enhance the stability and reliability of the rotation of the rotating support 26.

[0031] Please refer to the following: Figure 1 , Figure 5 and Figure 8 In some embodiments, the welding table 3 is provided with a U-shaped positioning groove 31, and the positioning component 4 includes a positioning post 41, an anti-detachment ring 42 provided at one end of the positioning post 41, a threaded post 43 provided at the other end of the positioning post 41, and a locking nut 44 screwed onto the threaded post 43. The U-shaped positioning groove 31 is provided with a positioning hole 32 for the positioning post 41 to be inserted. When the positioning post 41 is inserted into the positioning hole 32, the positioning post 41 can limit the finned tube heat sink 9 to be welded in the U-shaped positioning groove 31.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flipping device for radiator welding, characterized in that, include: Base; A flipping mechanism is disposed on the base. The flipping mechanism includes a base disposed on the base, a first rotating shaft rotatably disposed on the base via a bearing, a first gear fixedly mounted on the first rotating shaft, a second gear rotatably disposed on the base and meshing with the first gear, a first drive motor driving the second gear to rotate, and a rotating bracket fixedly connected to the first rotating shaft. The first drive motor is fixedly disposed on the base, and the motor shaft of the first drive motor is connected to the second gear. A welding table is mounted on the rotating support, and the flipping mechanism can rotate the welding table from a horizontal position to a vertical position. A positioning component for positioning the finned tube heat sink to be welded on the welding table; as well as A support component is disposed on the base. The support component can stop and support the rotating bracket when the flipping mechanism drives the welding table to flip to a preset position, so that the welding table is placed vertically on the base.

2. The flipping device for radiator welding as described in claim 1, characterized in that, The support assembly includes a support base fixedly mounted on the base, a stop support for stopping and supporting the rotating bracket, a guide slide rod mounted on the stop support, and a spring sleeved on the guide slide rod. A stepped hole is formed on the top surface of the support base. The end of the guide slide rod away from the stop support passes through the large hole of the stepped hole and is slidably inserted into the small hole of the stepped hole. The bottom end of the spring abuts against the stepped surface of the stepped hole, and the top end of the spring abuts against the stop support.

3. The flipping device for radiator welding as described in claim 2, characterized in that, The flipping device for radiator welding further includes a rotating mechanism for driving the base to rotate. The rotating mechanism includes a sleeve vertically mounted on the base, a second rotating shaft rotatably mounted in the sleeve, a turntable connected to the second rotating shaft, a third gear integrally formed with the turntable, a fourth gear meshing with the third gear, a second drive motor driving the fourth gear to rotate, and a rolling assembly for rollingly supporting the turntable on the top of the sleeve. The second drive motor is fixedly mounted on the base and / or the sleeve, and the motor shaft of the second drive motor is connected to the fourth gear. The base is fixedly mounted on the turntable.

4. The flipping device for radiator welding as described in claim 3, characterized in that, The flipping device for radiator welding further includes a clamping mechanism for clamping the turntable to position the turntable. The clamping mechanism includes a pair of arc-shaped jaws arranged on opposite sides of the turntable and two cylinders that drive the two arc-shaped jaws to move closer to or further away from each other. The cylinders are connected to the base and / or the support.

5. The flipping device for radiator welding as described in claim 3, characterized in that, The rolling assembly includes a plurality of balls arranged in a ring array on the bottom surface of the turntable. The bottom surface of the turntable is provided with a hemispherical groove for accommodating and positioning the balls. Each ball is rotatably disposed in the corresponding hemispherical groove. The top surface of the sleeve is provided with a first annular groove with a semi-circular cross-section. The portion of each ball protruding from the bottom surface of the turntable is placed in the first annular groove.

6. The flipping device for radiator welding as described in claim 3, characterized in that, The support base is cylindrical, and a plurality of stepped holes are equally spaced along the circumference of the top surface of the support base. The stop support is a support ring that matches the shape and size of the cylindrical support base. The support ring is provided with guide slide rods corresponding to the positions of each stepped hole, and each guide slide rod is fitted with a spring.

7. The flipping device for radiator welding as described in claim 6, characterized in that, The top surface of the support ring is provided with a second annular groove with a semi-circular cross-section, and the rotating bracket is provided with a hemispherical protrusion. When the rotating bracket is supported on the support ring, the hemispherical protrusion can be placed into the second annular groove, and the hemispherical protrusion slides in contact with the second annular groove.

8. The flipping device for radiator welding as described in claim 1, characterized in that, The flipping mechanism includes a third rotating shaft rotatably mounted on the base via a bearing, a second gear fixedly mounted on the third rotating shaft, and the motor shaft of the first drive motor connected to the third rotating shaft.

9. The flipping device for radiator welding as described in claim 1, characterized in that, The diameter of the first gear is 3 to 5 times the diameter of the second gear.

10. The flipping device for radiator welding as described in any one of claims 1 to 9, characterized in that, The welding table is provided with a U-shaped positioning slot. The positioning component includes a positioning post, an anti-disengagement ring at one end of the positioning post, a threaded post at the other end of the positioning post, and a locking nut screwed onto the threaded post. The U-shaped positioning slot is provided with a positioning hole for the positioning post to be inserted. When the positioning post is inserted into the positioning hole, the positioning post can limit the finned tube heat sink in the U-shaped positioning slot.

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