Air conditioner heat exchanger welding equipment with welding spot polishing function

Abstract

The utility model discloses air conditioner heat exchanger welding equipment with a welding spot polishing function, and relates to the technical field of welding, the air conditioner heat exchanger welding equipment comprises a working table and a workpiece table, a supporting frame is installed above the working table, the workpiece table is arranged on the upper surface of the working table, a threaded rod is installed in the supporting frame, and the threaded rod is connected with the working table. A welding device and a polishing device are installed above the first sliding block and the second sliding block correspondingly. A clamping mechanism is mounted above the workpiece table; a scrap pump and a collecting box are sequentially installed on the right side of the supporting frame from top to bottom, supporting plates are installed on the inner side of the right side of the supporting frame, and a reciprocating lead screw is installed between the supporting plates. According to the air conditioner heat exchanger welding equipment with the welding spot polishing function, the welding function and the polishing function are integrated, workpieces do not need to be dismounted for polishing after welding, the time and the labor cost for assembling and disassembling the workpieces are reduced, and the production efficiency of air conditioner heat exchangers is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a welding equipment for air conditioning heat exchangers with a weld point grinding function. Background Technology

[0002] In the modern refrigeration and air conditioning industry, air conditioning heat exchangers are key components for heat exchange, and their performance directly determines the energy efficiency, stability, and lifespan of the air conditioner. With increasing demands for indoor comfort and the promotion of energy conservation and emission reduction policies, the air conditioning industry has set higher standards for the production quality and efficiency of heat exchangers. Welding, as a core process in air conditioning heat exchanger manufacturing, directly affects the heat exchanger's sealing performance, strength, and thermal conductivity, and the quality of the weld joints is paramount in the welding process. However, traditional air conditioning heat exchanger welding equipment has many problems and cannot meet the current needs of the industry.

[0003] For example, Chinese utility model patent application number 202221260785.2 discloses a reinforcement device for facilitating thin aluminum welding. It includes a placement device that, when in use, can activate a hydraulic telescopic rod. The hydraulic telescopic rod moves a clamping plate towards the front of the thin aluminum plate, which, in conjunction with the placement frame, clamps and fixes the thin aluminum plate to the frame. This allows the device to clamp and fix the thin aluminum plates during welding, preventing misalignment and ensuring processing accuracy. It performs well in use. However, this device still has certain shortcomings.

[0004] After the workpiece is welded, it needs to be disassembled and the weld points need to be ground in the next process. Frequent disassembly not only consumes a lot of manpower and time, but also easily damages the workpiece during the disassembly process, such as causing heat exchanger fin deformation, pipe joint loosening, etc., which in turn affects the overall performance of the heat exchanger.

[0005] Therefore, we propose an air conditioning heat exchanger welding device with weld point grinding function to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an air conditioning heat exchanger welding equipment with weld point grinding function, so as to solve the problem mentioned in the background art that after the workpiece is welded, it is necessary to disassemble the workpiece and proceed to the next process to grind the weld points. Frequent disassembly operations not only consume a lot of manpower and time, but also easily cause damage to the workpiece during the disassembly process, such as causing deformation of heat exchanger fins, loosening of pipe joints, etc., which in turn affects the overall performance of the heat exchanger.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an air conditioning heat exchanger welding equipment with weld point grinding function, comprising a workbench and a workpiece table, a support frame installed above the workbench, a workpiece table provided on the upper surface of the workbench, a threaded rod installed inside the support frame, and a first slider and a second slider installed sequentially from left to right on the threaded rod, and a welding device and a grinding device respectively installed above the first slider and the second slider.

[0008] A clamping mechanism is installed above the workpiece stage;

[0009] A chip pump and a collection box are installed sequentially from top to bottom on the right side of the support frame. A support plate is installed on the inner side of the right side of the support frame, and there are two support plates. A reciprocating screw is installed between the support plates, and a movable slider is installed on the reciprocating screw.

[0010] Preferably, a first servo motor is installed on the left side of the support frame, and the right side of the first servo motor is connected to a threaded rod via an output shaft. A first guide rod is provided above the threaded rod, and the first guide rod is fixed on the support frame. The first guide rod passes through the first slider and the second slider, and the first guide rod is slidably connected to the first slider and the second slider.

[0011] By adopting the above structural design, the positions of the welding and grinding devices are controlled, enabling the equipment to flexibly adjust its working position to adapt to the welding and grinding needs of different specifications of air conditioning heat exchangers, thereby improving the equipment's versatility and processing accuracy, and ensuring that welding and grinding operations are carried out accurately.

[0012] Preferably, limit blocks are provided on both the left and right sides of the first guide rod, and electric telescopic mechanisms are provided on both the welding device and the grinding device.

[0013] With the above structural design, the limiting block limits the first and second sliders to prevent them from moving excessively; the electric telescopic mechanism of the welding and grinding devices can flexibly adjust the position of the welding head and the grinding head, which not only improves the safety of equipment operation, but also accurately positions the welding and grinding parts according to the specific location of the welding point of the air conditioning heat exchanger, thereby improving the quality and efficiency of welding and grinding.

[0014] Preferably, the clamping mechanism includes a vertical plate, clamping bolts, and a circular clamping block. Vertical plates are installed on both the left and right sides of the upper surface of the workpiece table, and clamping bolts are installed on both vertical plates. A circular clamping block is installed on the opposite side of each clamping bolt.

[0015] The above structural design allows for flexible adjustment of clamping force and position according to workpiece size, effectively fixing the workpiece during welding and grinding, preventing workpiece displacement, ensuring processing accuracy, avoiding problems such as weak welding and uneven grinding caused by workpiece shaking, and improving product quality.

[0016] Preferably, a limiting rod is sleeved on the workpiece table, and limiting rings are installed on both the left and right sides of the limiting rod. A first connecting plate is installed on the right side of the workpiece table, and a first limiting bolt is installed on the first connecting plate. A threaded groove is opened on the workpiece table, and the first limiting bolt is threadedly connected to the threaded groove.

[0017] The above structural design facilitates the adjustment of the workpiece stage position, enabling the workpiece to be quickly positioned in the grinding area after welding without disassembly, reducing process changeover time, improving production efficiency, and ensuring the stability of the workpiece during grinding, thus guaranteeing grinding quality.

[0018] Preferably, the lower surface of the workpiece table is provided with a U-shaped groove, and a second connecting plate is installed on both the front and rear sides of the workpiece table. A second limiting bolt is installed on the second connecting plate, and a threaded groove is provided on the workpiece table. The second limiting bolt is threadedly connected to the threaded groove.

[0019] The above structural design further enhances the flexibility and detachability of the workpiece stage position adjustment. While meeting different processing requirements, it facilitates equipment maintenance and workpiece stage replacement, improves equipment maintainability and service life, and reduces equipment maintenance costs.

[0020] Preferably, an adjusting bolt is installed on the workpiece table, the adjusting bolt is threadedly connected to the workpiece table, a second guide rod is provided below the adjusting bolt, the second guide rod passes through the workpiece table, the workpiece table is slidably connected to the second guide rod, and both the second guide rod and the adjusting bolt are connected to the support frame.

[0021] The above structural design makes the adjustment of the workpiece stage position more convenient and efficient. By rotating the adjusting bolt, the workpiece on the workpiece stage can be quickly moved to the bottom of the grinding device, simplifying the operation process, further improving production efficiency, and reducing the labor intensity of operators.

[0022] Preferably, a chip extraction pipe and a chip discharge pipe are installed below and to the left of the chip extraction pump, respectively. The chip extraction pipe is connected to the movable slider and has an elastic and telescopic structure design. A chip extraction nozzle is installed on the left side of the chip extraction pipe. The chip discharge pipe is connected to the inside of the collection box. A second servo motor is installed on the upper surface of the upper support plate, and the lower part of the second servo motor is connected to the reciprocating lead screw through the output shaft. A third guide rod passes through the movable slider. The third guide rod is parallel to the reciprocating lead screw, and the movable slider is slidably connected to the third guide rod.

[0023] By adopting the above structural design, the grinding debris generated during the grinding process is cleaned up in a timely manner, keeping the working area clean, reducing the impact of debris on equipment and operators, optimizing the working environment, and avoiding secondary damage to equipment and workpieces caused by debris, thus extending the service life of the equipment and ensuring product quality.

[0024] Compared with the prior art, the beneficial effects of this utility model are: the air conditioning heat exchanger welding equipment with weld point grinding function:

[0025] 1. Improve production efficiency: It integrates welding and grinding functions, eliminating the need to disassemble the workpiece after welding and then grind it, reducing the time and labor costs of loading and unloading workpieces, and greatly improving the production efficiency of air conditioning heat exchangers.

[0026] 2. Optimize the working environment: The coordinated use of chip pumps, chip extraction pipes, chip extraction nozzles, and collection boxes promptly cleans up the chips generated during grinding, keeps the work area clean, reduces the impact of chips on equipment and operators, and improves the working environment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0029] Figure 3 This is a schematic diagram of the structure during the grinding of the weld joints of the air conditioner heat exchanger of this utility model.

[0030] Figure 4 This is a schematic diagram of the connection structure between the movable slider and the chip extraction tube of this utility model;

[0031] Figure 5 This is a schematic diagram of the position structure of the workpiece stage and the limiting rod of this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0033] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0034] In the diagram: 1. Worktable; 2. Support frame; 3. First servo motor; 4. Threaded rod; 5. First slider; 6. Second slider; 7. First guide rod; 8. Welding device; 9. Grinding device; 10. Workpiece table; 11. Clamping mechanism; 12. Limiting rod; 13. Limiting ring; 14. First connecting plate; 15. First limiting bolt; 16. U-shaped groove; 17. Second connecting plate; 18. Second limiting bolt; 19. Adjusting bolt; 20. Second guide rod; 21. Chip extraction pump; 22. Collection box; 23. Chip extraction pipe; 24. Chip discharge pipe; 25. Chip extraction nozzle; 26. Support plate; 27. Second servo motor; 28. Reciprocating lead screw; 29. ​​Movable slider; 30. Third guide rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1

[0037] Please see Figures 1-5 This utility model provides a technical solution: a welding device for air conditioning heat exchangers with weld point grinding function, including a worktable 1, a support frame 2, a first servo motor 3, a threaded rod 4, a first slider 5, a second slider 6, a first guide rod 7, a welding device 8, a grinding device 9, a workpiece table 10, a clamping mechanism 11, a limiting rod 12, a limiting ring 13, a first connecting plate 14, a first limiting bolt 15, a chip extraction pump 21, a collection box 22, a chip extraction pipe 23, a chip discharge pipe 24, a chip extraction nozzle 25, and a support plate. 26. A second servo motor; 27. A reciprocating lead screw; 28. A movable slider; 29. ​​A third guide rod; 30. A support frame 2 is installed above the worktable 1. A workpiece table 10 is provided on the upper surface of the worktable 1. A threaded rod 4 is installed inside the support frame 2, and a first slider 5 and a second slider 6 are installed on the threaded rod 4 from left to right. A welding device 8 and a grinding device 9 are respectively installed above the first slider 5 and the second slider 6. A first servo motor 3 is installed on the left side of the support frame 2, and the first servo motor 3 is mounted on the right side of the first servo motor 2. The output shaft is connected to the threaded rod 4. A first guide rod 7 is provided above the threaded rod 4 and is fixed on the support frame 2. The first guide rod 7 passes through the first slider 5 and the second slider 6 and is slidably connected to the first slider 5 and the second slider 6. When the first servo motor 3 is started, the first servo motor 3 drives the threaded rod 4 to rotate. The first slider 5 and the second slider 6 will move left and right on the threaded rod 4, thereby driving the welding device 8 and the grinding device 9 installed above them to move to the appropriate welding and grinding positions. The first guide rod 7 guides the left and right movement of the first slider 5 and the second slider 6. Limit blocks are provided on both the left and right sides of the first guide rod 7. Both the welding device 8 and the grinding device 9 are equipped with electric telescopic mechanisms. The electric telescopic mechanism on the welding device 8 can adjust the height of the welding head to adapt to the welding points at different positions of the air conditioning heat exchanger for welding operations. The electric telescopic mechanism on the grinding device 9 adjusts the position of the grinding head to facilitate the grinding of the welding points on the air conditioning heat exchanger.

[0038] A clamping mechanism 11 is installed above the workpiece stage 10. The clamping mechanism 11 includes a vertical plate, clamping bolts, and circular clamping blocks. Vertical plates are installed on both the left and right sides of the upper surface of the workpiece stage 10, and clamping bolts are installed on each vertical plate. Circular clamping blocks are installed on the opposite side of each clamping bolt. The air conditioner heat exchanger workpiece is placed on the workpiece stage 10 and fixed by the clamping mechanism 11. The clamping bolts on the vertical plate of the clamping mechanism 11 can adjust the position of the circular clamping blocks to accommodate workpieces of different sizes, ensuring the workpiece remains stable during welding and grinding. A limit rod 12 is sleeved on the workpiece stage 10. Limiting rings 13 are installed on both the left and right sides of the workpiece table 10. A first connecting plate 14 is installed on the right side of the workpiece table 10, and a first limiting bolt 15 is installed on the first connecting plate 14. A threaded groove is opened on the worktable 1. The first limiting bolt 15 is threadedly connected to the threaded groove. After welding is completed, without disassembling the workpiece, the first limiting bolt 15 is loosened, and then the workpiece table 10 is slid to abut against the limiting ring 13 on the right side, so that the air conditioning heat exchanger on the workpiece table 10 is located below the grinding device 9. Then the first limiting bolt 15 is rotated so that the first limiting bolt 15 is connected to the threaded groove of the worktable 1, thus completing the limiting of the workpiece table 10.

[0039] From top to bottom, a chip extraction pump 21 and a collection box 22 are installed sequentially on the right side of the support frame 2. A support plate 26 is installed inside the right side of the support frame 2, and two support plates 26 are provided. A reciprocating lead screw 28 is installed between the support plates 26, and a movable slider 29 is installed on the reciprocating lead screw 28. A chip extraction pipe 23 and a chip discharge pipe 24 are installed below and to the left of the chip extraction pump 21, respectively. The chip extraction pipe 23 is connected to the movable slider 29 and has an elastic and telescopic design. A chip extraction nozzle 25 is installed on the left side of the chip extraction pipe 23. The chip discharge pipe 24 is connected to the interior of the collection box 22. A second servo motor 27 is installed on the upper surface of the upper support plate 26, and the lower part of the second servo motor 27 is connected to the reciprocating lead screw 28 via an output shaft. The movable slider 29 is connected to the third guide rod 30, which runs through it. The third guide rod 30 is parallel to the reciprocating lead screw 28. The movable slider 29 is slidably connected to the third guide rod 30. During the grinding process, the chip extraction pump 21 and the second servo motor 27 are started. The second servo motor 27 drives the reciprocating lead screw 28 to rotate, causing the movable slider 29 to move up and down on the reciprocating lead screw 28. Since the chip extraction tube 23 is connected to the movable slider 29 and the chip extraction tube 23 has an elastic and telescopic structure, the chip extraction nozzle 25 will move up and down with the movable slider 29, sucking in the grinding debris through the chip extraction tube 23 and then discharging it into the collection box 22 through the chip discharge tube 24, keeping the working area clean and avoiding secondary damage to the equipment and workpiece caused by the debris.

[0040] It should be noted that the welding device 8 and the grinding device 9 in this application are existing components in the art, and their internal structure and working principle will not be described in detail here.

[0041] Example 2

[0042] Please see Figure 6 This utility model provides a technical solution: an air conditioning heat exchanger welding device with weld point grinding function, including a U-shaped groove 16, a second connecting plate 17, and a second limiting bolt 18. The difference between this embodiment and embodiment one is:

[0043] The lower surface of the workpiece table 10 is provided with a U-shaped groove 16. Second connecting plates 17 are installed on both the front and rear sides of the workpiece table 10, and second limiting bolts 18 are installed on the second connecting plates 17. The worktable 1 is provided with a threaded groove, and the second limiting bolts 18 are threadedly connected to the threaded groove. After welding is completed, without disassembling the workpiece, the second limiting bolts 18 are loosened, and then the workpiece table 10 is slid to abut against the limiting ring 13 on the right side, so that the air conditioning heat exchanger on the workpiece table 10 is located below the grinding device 9. Then the second limiting bolts 18 are rotated to connect with the threaded groove of the worktable 1, thus completing the limiting of the workpiece table 10. When it is necessary to disassemble the workpiece table 10, the second limiting bolts 18 are loosened, and the workpiece table 10 is pulled upward through the U-shaped groove 16.

[0044] Example 3

[0045] Please see Figure 7 This utility model provides a technical solution: an air conditioning heat exchanger welding device with weld point grinding function, including adjusting bolt 19 and second guide rod 20. The difference between this embodiment and embodiment one is:

[0046] An adjusting bolt 19 is installed on the workpiece table 10. The adjusting bolt 19 is threadedly connected to the workpiece table 10. A second guide rod 20 is provided below the adjusting bolt 19. The second guide rod 20 passes through the workpiece table 10 and is slidably connected to the workpiece table 10 and the second guide rod 20. Both the second guide rod 20 and the adjusting bolt 19 are connected to the support frame 2. After welding is completed, there is no need to disassemble the workpiece. Rotating the adjusting bolt 19 will move the workpiece table 10 to the right, so that the air conditioning heat exchanger on the workpiece table 10 is located below the grinding device 9. The operation is more convenient and faster.

[0047] Working principle: When using the air conditioner heat exchanger welding equipment with weld point grinding function, firstly, the air conditioner heat exchanger workpiece is placed on the workpiece table 10 and fixed by the clamping mechanism 11. The clamping bolts on the vertical plate of the clamping mechanism 11 can adjust the position of the circular clamping block to adapt to workpieces of different sizes and ensure that the workpiece remains stable during welding and grinding.

[0048] The first servo motor 3 is started, which drives the threaded rod 4 to rotate. The first slider 5 and the second slider 6 will move left and right on the threaded rod 4, thereby driving the welding device 8 and the grinding device 9 installed above them to move to the appropriate welding and grinding positions. The air conditioner heat exchanger is welded by the welding device 8.

[0049] After welding is completed, without disassembling the workpiece, the air conditioning heat exchanger on the workpiece table 10 is moved to below the grinding device 9, and the workpiece table 10 is limited. Then, the position of the grinding device 9 is moved using the above method to grind the air conditioning heat exchanger. During the grinding process, the chip extraction pump 21 and the second servo motor 27 are started. The second servo motor 27 drives the reciprocating screw 28 to rotate, causing the movable slider 29 to move up and down on the reciprocating screw 28. Since the chip extraction pipe 23 is connected to the movable slider 29 and the chip extraction pipe 23 has an elastic and extensible structure, the chip extraction nozzle 25 moves up and down with the movable slider 29, sucking in the grinding debris through the chip extraction pipe 23 and then discharging it into the collection box 22 through the chip discharge pipe 24, keeping the working area clean and preventing secondary damage to the equipment and workpiece caused by the debris, thus completing a series of tasks. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for air conditioning heat exchangers with weld point grinding function, comprising a workbench (1) and a workpiece table (10), wherein a support frame (2) is installed above the workbench (1), and the workpiece table (10) is provided on the upper surface of the workbench (1), characterized in that: The support frame (2) is equipped with a threaded rod (4), and a first slider (5) and a second slider (6) are installed on the threaded rod (4) from left to right. A welding device (8) and a grinding device (9) are installed above the first slider (5) and the second slider (6), respectively. A clamping mechanism (11) is installed above the workpiece stage (10). A chip pump (21) and a collection box (22) are installed sequentially from top to bottom on the right side of the support frame (2). A support plate (26) is installed on the inner side of the right side of the support frame (2), and there are two support plates (26). A reciprocating screw (28) is installed between the support plates (26), and a movable slider (29) is installed on the reciprocating screw (28).

2. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 1, characterized in that: The support frame (2) is equipped with a first servo motor (3) on the left side, and the right side of the first servo motor (3) is connected to the threaded rod (4) through the output shaft. A first guide rod (7) is provided above the threaded rod (4). The first guide rod (7) is fixed on the support frame (2). The first guide rod (7) passes through the first slider (5) and the second slider (6). The first guide rod (7) is slidably connected to the first slider (5) and the second slider (6).

3. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 2, characterized in that: Limit blocks are provided on both the left and right sides of the first guide rod (7), and electric telescopic mechanisms are provided on both the welding device (8) and the grinding device (9).

4. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 1, characterized in that: The clamping mechanism (11) includes a vertical plate, clamping bolts and a circular clamping block. Vertical plates are installed on both the left and right sides of the upper surface of the workpiece table (10), and clamping bolts are installed on both vertical plates. A circular clamping block is installed on the opposite side of the clamping bolts.

5. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 1, characterized in that: A limiting rod (12) is sleeved on the workpiece table (10). Limiting rings (13) are installed on both the left and right sides of the limiting rod (12). A first connecting plate (14) is installed on the right side of the workpiece table (10), and a first limiting bolt (15) is installed on the first connecting plate (14). A threaded groove is opened on the worktable (1), and the first limiting bolt (15) is threadedly connected to the threaded groove.

6. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 5, characterized in that: The lower surface of the workpiece table (10) is provided with a U-shaped groove (16), and the front and rear sides of the workpiece table (10) are provided with a second connecting plate (17), and a second limiting bolt (18) is provided on the second connecting plate (17). The worktable (1) is provided with a threaded groove, and the second limiting bolt (18) is threadedly connected to the threaded groove.

7. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 1, characterized in that: An adjusting bolt (19) is installed on the workpiece table (10). The adjusting bolt (19) is threadedly connected to the workpiece table (10). A second guide rod (20) is provided below the adjusting bolt (19). The second guide rod (20) passes through the workpiece table (10). The workpiece table (10) and the second guide rod (20) are slidably connected. Both the second guide rod (20) and the adjusting bolt (19) are connected to the support frame (2).

8. The air conditioning heat exchanger welding equipment with weld point grinding function according to claim 1, characterized in that: The chip pump (21) is equipped with a chip extraction pipe (23) and a chip discharge pipe (24) on its lower and left sides, respectively. The chip extraction pipe (23) is connected to the movable slider (29). The chip extraction pipe (23) has an elastic and telescopic structure design. A chip extraction nozzle (25) is installed on the left side of the chip extraction pipe (23). The chip discharge pipe (24) is connected to the inside of the collection box (22). A second servo motor (27) is installed on the upper surface of the upper support plate (26). The lower part of the second servo motor (27) is connected to the reciprocating screw (28) through the output shaft. A third guide rod (30) runs through the movable slider (29). The third guide rod (30) is parallel to the reciprocating screw (28). The movable slider (29) is slidably connected to the third guide rod (30).

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