Condensation pipe bending device for refrigerator production

Abstract

The invention provides a condenser pipe bending device for refrigerator production, and belongs to the technical field of condenser pipe bending, the condenser pipe bending device comprises a workbench and further comprises a mounting frame fixed on the workbench, the mounting frame is rotatably connected with a rotating shaft a, the workbench is provided with a bending unit matched with the rotating shaft a, the bending unit is used for bending a condenser pipe, and the rotating shaft a is fixed on the mounting frame; a bearing frame is fixed to the workbench, a discharging mechanism is arranged on the bearing frame, and the discharging mechanism facilitates material taking of the bent condenser pipe. The lubricating mechanism is arranged on the workbench, and the lubricating mechanism is used for lubricating the condenser pipe in the bending process; and through the lubricating mechanism, lubricating oil can be smeared on the full-circle roller, it is ensured that the surface of the condenser pipe is lubricated, scratches, stretching and sinking of the pipe wall caused by large friction in the bending process are avoided, and the bending precision and efficiency of the condenser pipe are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of condenser tube bending technology, and more particularly to a condenser tube bending device for refrigerator manufacturing. Background Technology

[0002] The condenser coil inside a refrigerator is a pipe used to cool and convert the high-temperature, high-pressure refrigerant gas discharged from the compressor into liquid, thereby transferring and dissipating heat. Typically, the condenser coil has a structure of multiple U-shaped coils connected end to end. This structure can make more efficient use of limited space, allowing the condenser coil to achieve a longer path within a limited volume, thereby increasing the heat dissipation area and improving heat exchange efficiency. As a core component of the refrigerator's refrigeration system, the condenser tube needs to be bent to form a specific pipe routing in order to maximize the heat exchange area and adapt to the installation space of the refrigerator body. This device is widely used in the condenser processing section of the refrigerator production line and is a key piece of equipment for connecting pipe cutting, welding and other processes. During the bending process of refrigerator condenser tubes, since condenser tubes are mostly made of relatively soft non-ferrous metals such as copper and aluminum, insufficient lubrication can cause severe dry friction or boundary friction between the tube and the bending die. This can lead to defects such as scratches, roughening, and pitting on the tube surface. In severe cases, local tearing or peeling of the tube wall may also occur. Currently, when insufficient lubrication occurs during bending, workers usually apply lubricating oil to the bending parts to ensure sufficient lubrication during bending. However, it is difficult to apply lubricating oil to the bending area in a timely manner, which affects the bending effect of the tube and makes it difficult to guarantee the product quality of the tube. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a condenser tube bending device for refrigerator production. Through a lubrication mechanism, lubricating oil can be applied to the full-circular rollers to ensure the surface of the condenser tube is lubricated, preventing scratches and dents on the tube wall caused by high friction during bending, and effectively improving the bending accuracy and efficiency of the condenser tube.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution to address the issue of insufficient lubrication during bending, which easily leads to severe friction and damage to the pipe, affecting the bending effect and making it difficult to guarantee the quality of the pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A condenser tube bending device for refrigerator manufacturing includes a workbench and further includes: A mounting bracket fixed to a workbench, on which a rotating shaft a is rotatably connected, and a bending unit adapted to the rotating shaft a is provided on the workbench for bending the condenser tubes. A support frame is fixed to the workbench, and a unloading mechanism is provided on the support frame for easy removal of the bent condenser tubes; and, A lubrication mechanism is provided on the workbench, which is used to lubricate the condenser tube during the bending process.

[0006] Preferably, the bending unit includes: a bracket a fixed on the worktable, and a servo motor fixed on the bracket a and coaxially fixed to the rotating shaft a; a rotating frame fixed on the rotating shaft a, and a shaft body rotatably connected to the rotating frame; a full-circular roller fixed on the shaft body; a rotating shaft b rotatably connected to the rotating frame; a semi-circular roller in contact with the full-circular roller fixed on the rotating shaft b; a swing arm fixed on the rotating shaft a; and a positioning mold fixed on the swing arm.

[0007] Preferably, the unloading mechanism includes: a spur gear a fixed on the rotating shaft b, and a cylinder fixed on the support frame, wherein a toothed plate is fixed to the output end of the cylinder, and the toothed plate is meshed with the spur gear a.

[0008] Preferably, the lubrication mechanism includes: a support frame b fixed on the workbench, an oil reservoir fixed on the support frame b, a cover plate rotatably connected to the oil reservoir, a connecting frame fixed on the oil reservoir, two guide rods slidingly passing through the connecting frame, and a mounting box fixed to both guide rods, a sponge block disposed inside the mounting box, a brush fixed on the sponge block, an oil delivery pipe a fixed on the oil reservoir, a valve disposed on the oil delivery pipe a, an oil delivery pipe b that slides inside the oil delivery pipe a fixed on the mounting box, and a sealing element disposed on the oil delivery pipe b for intermittently blocking the oil delivery pipe b.

[0009] Preferably, the support frame b is provided with a swinging component, the swinging component including: a toothed ring a fixed on a rotating swing frame, and a support plate fixed on the support frame b, and a transmission shaft a rotatably connected to the support plate, a transmission gear a fixed on the transmission shaft a and meshing with the toothed ring a, and a transmission shaft b rotatably connected to the support plate, a transmission gear b fixed on the transmission shaft b and meshing with the transmission gear a, a transmission plate fixed at one end of the transmission shaft b, and a connecting rod hinged between the transmission plate and the mounting box, a spring sleeved on the guide rod, one end of the spring fixed to the mounting box, and the other end of the spring fixed to the connecting frame.

[0010] Preferably, the sealing component includes: a mounting ring fixed inside the oil pipeline b, wherein the mounting ring has at least two through holes and a rod is fixed on the mounting ring; a sealing ring is fixed on the oil pipeline a; the diameter of the rod is the same as the inner diameter of the sealing ring; and a sealing ring is fixed on the rod.

[0011] Preferably, the support plate is fixed with a mounting frame, and both drive shaft a and drive shaft b are rotatably connected to the mounting frame, and the mounting frame has an L-shaped cross-section.

[0012] Preferably, a toothed ring b is fixed on the worktable, and a spur gear b is fixed on the shaft, and the spur gear b meshes with the toothed ring b. The central axes of the toothed ring a and the toothed ring b are both collinear with the central axis of the rotating shaft a.

[0013] Preferably, a frame is fixed on the workbench, and a guide frame is fixed on the frame. A groove adapted to the guide frame is provided on the toothed plate.

[0014] Preferably, a guide frame is fixed on the worktable, and a bracket b is fixed on the mounting frame. A guide module is fixed on both the bracket b and the guide frame. The central axis of the guide module is collinear with the central axis of the positioning mold.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a condenser tube bending device for refrigerator production. By setting up a lubrication mechanism, lubricating oil can be applied to the full-circle roller, thereby ensuring that the surface of the condenser tube remains sufficiently lubricated. This avoids the situation where the condenser tube wall is scratched, stretched, or dented due to excessive friction during the bending process, effectively improving the bending accuracy and efficiency of the condenser tube.

[0016] This invention provides a condenser tube bending device for refrigerator production. Through the design of the unloading mechanism, it enables rapid and convenient unloading of the condenser tubes. Compared to the unloading method used in traditional condenser tube bending devices, it demonstrates significant convenience in practical applications, making the entire unloading process easier and simpler. This not only greatly simplifies the cumbersome processing steps after condenser tube bending but also further improves the overall efficiency of condenser tube bending work, providing a strong guarantee for the efficient operation of related production processes.

[0017] This invention provides a condenser tube bending device for refrigerator production. Through the cooperation between the sealing component and the swing component, the oil supply to the brush can be cut off when the condenser tube is bent. After the bending component completes its action and resets, the oil supply channel to the brush is reopened, restoring it to the oil supply state. In this way, it can ensure that the brush part is always kept in a state with sufficient and good oil content. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a partial side view of the structure of the present invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure of region A in the middle; Figure 6 This is a schematic diagram of the bending unit structure of the present invention; Figure 7 for Figure 6 Enlarged schematic diagram of the structure of region B in the middle; Figure 8 This is a partial top view of the structure of the present invention; Figure 9 for Figure 8 Enlarged schematic diagram of the structure of region C in the middle; Figure 10 This is a schematic diagram of the lubrication mechanism of the present invention; Figure 11 This is a schematic diagram of the swing component structure of the present invention; Figure 12 for Figure 11 Enlarged schematic diagram of the structure of region D in the middle; Figure 13 This is a side sectional view of the oil storage tank of the present invention; Figure 14 This is a schematic diagram of the sealing component structure of the present invention; Figure 15 for Figure 14 Enlarged schematic diagram of the structure of region E in the middle.

[0020] Drawing Number Explanation: 1. Workbench; 2. Mounting Frame; 3. Rotating Shaft a; 4. Bending Unit; 5. Bearing Frame; 6. Unloading Mechanism; 7. Lubrication Mechanism; 8. Support a; 9. Servo Motor; 10. Rotating Swing Frame; 11. Shaft Body; 12. Full Circular Roller; 13. Rotating Shaft b; 14. Semi-Circular Roller; 15. Swing Arm; 16. Positioning Mold; 17. Spur Gear a; 18. Spur Gear b; 19. Cylinder; 20. Toothed Plate; 21. Support Frame b; 22. Oil Reservoir; 23. Cover Plate; 24. Connecting Frame; 25. Guide Rod; 26. Mounting Box; 27. Sponge Block; 28. Wool 29. Brush; 30. Oil pipe a; 31. Valve; 32. Oil pipe b; 33. Sealing component; 34. Swinging component; 35. Toothed ring a; 36. Support plate; 37. Drive shaft a; 38. Drive gear a; 39. Drive shaft b; 40. Drive gear b; 41. Drive plate; 42. Connecting rod; 43. Spring; 44. Mounting ring; 45. Through hole; 46. Rod body; 47. Sealing ring; 48. Mounting bracket; 49. Toothed ring b; 50. Frame body; 51. Guide frame; 52. Slide groove; 53. Material guide frame; 54. Support b; 55. Material guide module. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0023] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] Example 1: Please refer to Figure 1 - Figure 15A condenser tube bending device for refrigerator production includes a workbench 1, and further includes: a mounting frame 2 fixed on the workbench 1, a rotating shaft a3 rotatably connected to the mounting frame 2, and a bending unit 4 adapted to the rotating shaft a3 on the workbench 1 for bending the condenser tube; a support frame 5 fixed on the workbench 1, and a unloading mechanism 6 on the support frame 5 for facilitating the removal of the bent condenser tube; and a lubrication mechanism 7 on the workbench 1 for lubricating the condenser tube during the bending process. The workbench 1 is fixed with a guide frame 53, and the mounting frame 2 is fixed with a bracket b54. Both the bracket b54 and the guide frame 53 are fixed with guide modules 55. The guide modules 55 are set to assist in guiding the feed of the condenser tube before bending, so as to ensure that the feed of the condenser tube maintains relative stability.

[0026] Furthermore, the bending unit 4 includes: a bracket a8 fixed on the worktable 1, and a servo motor 9 fixed on the bracket a8 and coaxially fixed with the rotating shaft a3; a rotating swing frame 10 fixed on the rotating shaft a3; a shaft 11 rotatably connected to the rotating swing frame 10; a full-circular roller 12 fixed on the shaft 11; a rotating shaft b13 rotatably connected to the rotating swing frame 10; a semi-circular roller 14 in contact with the full-circular roller 12 fixed on the rotating shaft b13; a swing arm 15 fixed on the rotating shaft a3; a positioning mold 16 fixed on the swing arm 15; and the central axis of the material guiding module 55 and the central axis of the positioning mold 16 are collinearly arranged. The full-circular roller 12 and the semi-circular roller 14 are the same size and are located on the same horizontal plane. A toothed ring b49 is fixed on the worktable 1 and a spur gear b18 is fixed on the shaft 11. The spur gear b18 is meshed with the toothed ring b49. The central axes of the toothed ring a34 and the toothed ring b49 are collinear with the central axis of the rotating shaft a3. With the addition of the toothed ring b49 and the spur gear b18, the full-circular roller 12 rotates after being subjected to force when bending the condenser tube. It should be noted that by setting up bending unit 4, the bending process of the condenser tube can be completed precisely, ensuring that the condenser tube after bending meets the bending angle requirements, and the operation is simple and the bending efficiency is high. The bending principle of the condenser tube using bending unit 4 is as follows: First, the condenser tube is fed from the material guide module 55 to between the semi-circular roller 14 and the full-circular roller 12, ensuring that the condenser tube is in contact with the positioning mold 16. Driven by the servo motor 9, the rotating shaft a3 rotates synchronously, driving the rotating swing frame 10 and the swing arm 15 to rotate synchronously. The pressure applied to the condenser tube by the positioning mold 16 causes the inner side of the condenser tube to be subjected to compressive stress and the outer side to be subjected to tensile stress. When the stress exceeds the yield strength of the metal, the condenser tube undergoes plastic deformation. After the external force is removed, it can still maintain the bent shape and form the target shape, thereby completing the purpose of bending the condenser tube.

[0027] Furthermore, the unloading mechanism 6 includes: a spur gear a17 fixed on the rotating shaft b13, and a cylinder 19 fixed on the support frame 5. A toothed plate 20 is fixed at the output end of the cylinder 19, and the toothed plate 20 is meshed with the spur gear a17. The workbench 1 is fixed with a frame 50, and a guide frame 51 is fixed on the frame 50. The toothed plate 20 is provided with a sliding groove 52 that matches the guide frame 51. By adding the guide frame 51 and the sliding groove 52, the toothed plate 20 is guided, ensuring that the toothed plate 20 can move with relative stability. It should be noted that the unloading mechanism 6 enables a quick and convenient unloading operation of the condenser tubes. Compared with the unloading method used by the traditional condenser tube bending device, it has shown great convenience in practical applications, making the entire unloading process easier and simpler. This not only greatly simplifies the cumbersome processing steps after bending the condenser tubes, but also further improves the overall efficiency of the condenser tube bending work, providing a strong guarantee for the efficient operation of related production processes. The principle of using unloading mechanism 6 to release the condenser tube limit is as follows: Driven by cylinder 19, toothed plate 20 moves synchronously. Utilizing the meshing transmission between toothed plate 20 and spur gear a17, rotating shaft b13 is subjected to force and rotates, thereby driving semi-circular roller 14 to rotate 90 degrees, thus completing the limit of the condenser tube and making it convenient for workers to pick up the bent condenser tube.

[0028] Example 2: Please refer to Figure 10 - Figure 15 This embodiment further explains the first embodiment, the difference being the method of lubricating the pipe.

[0029] Furthermore, the lubrication mechanism 7 includes: a support frame b21 fixed on the workbench 1, an oil reservoir 22 fixed on the support frame b21, a cover plate 23 rotatably connected to the oil reservoir 22, a connecting frame 24 fixed on the oil reservoir 22, two guide rods 25 slidingly passing through the connecting frame 24, and a mounting box 26 fixed together on the two guide rods 25, a sponge block 27 provided inside the mounting box 26, and a brush 28 fixed on the sponge block 27. After the sponge block 27 absorbs lubricating oil, it conducts it to the brush 28. An oil delivery pipe a29 is fixed on the oil reservoir 22, and an oil delivery pipe b31 that slides inside the oil delivery pipe a29 is fixed on the mounting box 26. Both the oil delivery pipe a29 and the oil delivery pipe b31 are made of rigid pipe material. The oil pipeline b31 is provided with a sealing component 32, which is used to intermittently block the oil pipeline b31. The sealing component 32 includes: a mounting ring 43 fixed inside the oil pipeline b31, and the mounting ring 43 has at least two through holes 44. A rod body 45 is fixed on the mounting ring 43. A sealing ring 46 is fixed on the oil pipeline a29. The diameter of the rod body 45 is the same as the inner diameter of the sealing ring 46. A sealing ring 47 is fixed on the rod body 45. It should be noted that, through the setting of the lubrication mechanism 7, lubricating oil can be applied to the full-circle roller 12, thereby ensuring that the surface of the condenser tube is kept sufficiently lubricated, avoiding the situation where the tube wall is scratched, stretched, or dented due to excessive friction during the bending process, and effectively improving the bending accuracy and efficiency of the condenser tube. The lubrication principle of the lubrication mechanism 7 for the full-circular roller 12 is as follows: First, ensure that there is enough lubricating oil in the oil storage tank 22 and open the valve 30. The lubricating oil in the oil storage tank 22 flows into the oil supply pipe b31 through the oil supply pipe a29. The lubricating oil is absorbed by the sponge block 27, which maintains the oil content on the brush 28 and completes the lubrication work through friction between the brush and the full-circular roller 12.

[0030] Furthermore, a swing element 33 is provided on the support frame b21. The swing element 33 includes a toothed ring a34 fixed on the rotating swing frame 10, and a support plate 35 is fixed on the support frame b21. A transmission shaft a36 is rotatably connected to the support plate 35. A transmission gear a37 that meshes with the toothed ring a34 is fixed on the transmission shaft a36. A transmission shaft b38 is rotatably connected to the support plate 35. A transmission gear b39 that meshes with the transmission gear a37 is fixed on the transmission shaft b38. A transmission gear b39 is fixed at one end of the transmission shaft b38. The transmission plate 40 is hinged to the mounting box 26 by a connecting rod 41. A spring 42 is sleeved on the guide rod 25, with one end of the spring 42 fixed to the mounting box 26 and the other end of the spring 42 fixed to the connecting frame 24. An additional frame 48 is fixed on the support plate 35, and both the transmission shaft a36 and the transmission shaft b38 are rotatably connected to the additional frame 48. The cross-section of the additional frame 48 is L-shaped. By adding the additional frame 48, the stability of the transmission shaft a36 and the transmission shaft b38 is greatly improved, thereby enhancing the safety during movement. It should be noted that when bending the condenser tube, the brush 28 is moved by the swinging component 33, so that the brush 28 is separated from the full-circular roller 12 when the condenser tube is bent. When the full-circular roller 12 returns to its initial state, the brush 28 contacts it again. It should also be noted that, through the cooperation between the sealing component 32 and the swing component 33, the oil supply to the brush 28 can be cut off when the condenser tube is bent. After the bending component completes its action and resets, the oil supply channel to the brush 28 is reopened, restoring it to the oil supply state. In this way, it can be ensured that the brush 28 is always kept in a state with sufficient and good oil content. The principle of using the swing element 33 to drive the brush 28 to move is as follows: the rotation of the rotating swing frame 10 causes the toothed ring a34 to rotate synchronously. The meshing transmission between the toothed ring a34 and the transmission gear a37 drives the transmission shaft a36 to rotate. The meshing transmission between the transmission gear a37 and the transmission gear b39 drives the transmission shaft b38 to rotate, causing the transmission plate 40 to rotate under force. The transmission action of the connecting rod 41 causes the mounting box 26 to move linearly after being subjected to force, driving the oil pipe b31 to move synchronously and driving the rod body 45 to move. When the bending angle reaches the preset right angle, the sealing ring 47 on the rod body 45 fits with the sealing ring 46, thereby completing the sealing state of the oil pipe a29. When the rotating frame 10 is reset, the rod 45 moves towards the full circle roller, thereby releasing the sealing ring 46 and allowing the lubricating oil in the infusion tube a to remain in a circulating state.

[0031] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A condenser tube bending device for refrigerator production, comprising a workbench (1); Its features are, Also includes: A mounting bracket (2) is fixed on the workbench (1), and a rotating shaft a (3) is rotatably connected to the mounting bracket (2). A bending unit (4) adapted to the rotating shaft a (3) is provided on the workbench (1). The bending unit (4) is used for bending the condenser tube. A support frame (5) is fixed on the workbench (1), and a unloading mechanism (6) is provided on the support frame (5). The unloading mechanism (6) facilitates the removal of the bent condenser tube. A lubrication mechanism (7) is provided on the workbench (1), which is used to lubricate the condenser tube during the bending process.

2. The condenser tube bending device for refrigerator production according to claim 1, characterized in that, The bending unit (4) includes: a bracket a (8) fixed on the workbench (1), and a servo motor (9) fixed on the bracket a (8) and coaxially fixed with the rotating shaft a (3), a rotating swing frame (10) fixed on the rotating shaft a (3), and a shaft body (11) rotatably connected to the rotating swing frame (10), a full-circular roller (12) fixed on the shaft body (11), and a rotating shaft b (13) rotatably connected to the rotating swing frame (10), a semi-circular roller (14) in contact with the full-circular roller (12) fixed on the rotating shaft b (13), and a swing arm (15) fixed on the rotating shaft a (3), and a positioning mold (16) fixed on the swing arm (15).

3. The condenser tube bending device for refrigerator production according to claim 1, characterized in that, The unloading mechanism (6) includes: a spur gear a (17) fixed on the rotating shaft b (13), and a cylinder (19) fixed on the support frame (5). The output end of the cylinder (19) is fixed with a toothed plate (20), and the toothed plate (20) meshes with the spur gear a (17).

4. The condenser tube bending device for refrigerator production according to claim 1, characterized in that, The lubrication mechanism (7) includes: a support frame b (21) fixed on the workbench (1), an oil reservoir (22) fixed on the support frame b (21), and a cover plate (23) rotatably connected to the oil reservoir (22). A connecting frame (24) is fixed on the oil reservoir (22), and two guide rods (25) slide through the connecting frame (24). A mounting box (26) is fixed on both guide rods (25). Inside the mounting box (26) A sponge block (27) is provided, and a brush (28) is fixed on the sponge block (27). An oil pipeline a (29) is fixed on the oil storage cylinder (22), and a valve (30) is provided on the oil pipeline a (29). An oil pipeline b (31) that slides inside the oil pipeline a (29) is fixed on the mounting box (26). A sealing element (32) is provided on the oil pipeline b (31), and the sealing element (32) is used to intermittently block the oil pipeline b (31).

5. A condenser tube bending device for refrigerator production according to claim 4, characterized in that, The support frame b (21) is provided with a swinging component (33), the swinging component (33) includes: a toothed ring a (34) fixed on the rotating swing frame (10), and a support plate (35) fixed on the support frame b (21), and a transmission shaft a (36) rotatably connected to the support plate (35). A transmission gear a (37) meshing with the toothed ring a (34) is fixed on the transmission shaft a (36), and a transmission shaft is rotatably connected to the support plate (35). b (38), a transmission gear b (39) that meshes with the transmission gear a (37) is fixed on the transmission shaft b (38), a transmission plate (40) is fixed at one end of the transmission shaft b (38), and a connecting rod (41) is hinged between the transmission plate (40) and the mounting box (26). A spring (42) is sleeved on the guide rod (25), and one end of the spring (42) is fixed to the mounting box (26), and the other end of the spring (42) is fixed to the connecting frame (24).

6. The condenser tube bending device for refrigerator production according to claim 4, characterized in that, The sealing component (32) includes: a mounting ring (43) fixed inside the oil pipeline b (31), and at least two through holes (44) are opened on the mounting ring (43), and a rod body (45) is fixed on the mounting ring (43), a sealing ring (46) is fixed on the oil pipeline a (29), the diameter of the rod body (45) is the same as the inner diameter of the sealing ring (46), and a sealing ring (47) is fixed on the rod body (45).

7. A condenser tube bending device for refrigerator production according to claim 5, characterized in that, The support plate (35) is fixed with a mounting bracket (48), and both the drive shaft a (36) and the drive shaft b (38) are rotatably connected to the mounting bracket (48). The mounting bracket (48) has an L-shaped cross-section.

8. A condenser tube bending device for refrigerator production according to claim 2, characterized in that, A toothed ring b (49) is fixed on the workbench (1), and a spur gear b (18) is fixed on the shaft (11). The spur gear b (18) meshes with the toothed ring b (49). The central axes of the toothed ring a (34) and the toothed ring b (49) are both collinear with the central axis of the rotating shaft a (3).

9. A condenser tube bending device for refrigerator production according to claim 3, characterized in that, The workbench (1) is fixed with a frame (50), and a guide frame (51) is fixed on the frame (50). The toothed plate (20) is provided with a sliding groove (52) that matches the guide frame (51).

10. A condenser tube bending device for refrigerator production according to claim 2, characterized in that, The workbench (1) is fixed with a guide frame (53), and the mounting frame (2) is fixed with a bracket b (54). Both the bracket b (54) and the guide frame (53) are fixed with guide modules (55). The central axis of the guide module (55) is collinear with the central axis of the positioning mold (16).

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