Clamping device for finned coil welding

Abstract

The utility model relates to the technical field of finned coil pipe production equipment, and discloses a clamping device for finned coil pipe welding, which comprises a mounting base and an L-shaped adjusting frame, a clamping assembly is installed on the vertical side wall of the L-shaped adjusting frame and comprises a positioning block and a threaded sleeve, the threaded sleeve is rotationally installed on the vertical side wall of the L-shaped adjusting frame, a moving block is installed on the outer side of the threaded sleeve, and folding frames are rotationally connected to the upper side of the positioning block and the upper side of the threaded sleeve correspondingly. A clamping piece is rotationally connected between the other ends of the two corresponding sets of folding frames, and a driving assembly is installed on the vertical side wall of the L-shaped adjusting frame. Compared with the prior art, the fin type coil pipe clamping device has the advantages that the clamping assembly penetrates to the inner side of one end of a fin type coil pipe, the two sets of folding frames drive the clamping pieces to move towards the inner wall of the fin type coil pipe, the multiple sets of folding frames support the inner wall of the fin type coil pipe, the function of clamping and positioning the fin type coil pipe is achieved, and the fin type coil pipe clamping device is not limited by the shape of the outer side of the fin type coil pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of finned coil production equipment, specifically to a clamping device for welding finned coils. Background Technology

[0002] Finned coils, also known as finned tubes, are a type of heat exchange element. To improve heat exchange efficiency, fins are typically added to the surface of the heat exchange tube, increasing its external (or internal) surface area, thereby enhancing heat exchange efficiency. As a heat exchange element, finned tubes operate under harsh conditions with high-temperature flue gas, such as in boiler heat exchangers where the environment is high-temperature, high-pressure, and corrosive. This necessitates that finned tubes possess very high performance specifications.

[0003] When welding existing finned tubes, it is often necessary to fix the finned tubes. Because the shape of the outer side of the finned tube is not regular and flat, the clamping device structure for the outer side of the finned tube is usually more complicated, and it is also more troublesome to clamp the finned tube. After the finned tube is positioned and clamped, it is not convenient to rotate the finned tube to adjust the angle, which makes it inconvenient to use.

[0004] To address the aforementioned technical problems, this application proposes a clamping device for the inner side of a finned coil used in welding finned coils. Utility Model Content

[0005] I. Technical problems to be solved

[0006] The technical problem this utility model aims to solve is that because the outer shape of the finned tube is not regular and flat, the clamping device structure for the outer side of the finned tube is usually more complicated, and clamping the finned tube is also more troublesome. After the finned tube is positioned and clamped, it is not convenient to rotate the finned tube to adjust the angle.

[0007] II. Technical Solution

[0008] To solve the above technical problems, the technical solution provided by this utility model is: a clamping device for welding finned coils, including a mounting base and an L-shaped adjusting frame. The mounting base is provided with a storage groove inside. The lower side wall of the L-shaped adjusting frame slides out of the storage groove. A positioning component is installed inside the storage groove to fix the L-shaped adjusting frame inside the storage groove.

[0009] A clamping assembly is installed on the vertical side wall of the L-shaped adjustment frame. The clamping assembly includes a positioning block and a threaded sleeve. The threaded sleeve is rotatably installed on the vertical side wall of the L-shaped adjustment frame. A positioning rod is installed on one side of the positioning block. One end of the positioning rod passes through the threaded sleeve and is fixedly connected to the L-shaped adjustment frame.

[0010] A movable block is installed on the outside of the threaded sleeve and connected by a thread. The positioning block and the upper side of the threaded sleeve are respectively rotatably connected to a folding frame. A clamping member is rotatably connected between the other ends of the two sets of folding frames. A driving component is installed on the vertical side wall of the L-shaped adjusting frame to drive the threaded sleeve to rotate.

[0011] As an improvement, the drive assembly includes a first gear and a second gear. The first gear is fixedly sleeved on the outside of the threaded sleeve, and the second gear meshes with the first gear. A motor is installed on the side wall of the L-shaped adjustment frame to drive the second gear to rotate. A control switch connected to the motor is installed on the side wall of the L-shaped adjustment frame.

[0012] As an improvement, the clamping member slides through a limiting rod inside, one end of the limiting rod is connected to a limiting slider, and the vertical side wall of the L-shaped adjusting frame is provided with a limiting groove that cooperates with the limiting slider and the limiting rod to slide, and the limiting groove has a convex shape structure.

[0013] As an improvement, the positioning component includes a threaded shaft, the upper end of which protrudes from the top of the receiving groove and is connected by a thread, a limit block is fixedly installed on the lower outer side of the threaded shaft, and a screw block is installed at the lower end of the threaded shaft.

[0014] As an improvement, a strip-shaped slide is provided on the lower side wall of the L-shaped adjustment frame, through which the threaded shaft slides. A groove is provided at the lower edge of the strip-shaped slide for a matching limiting block to pass through.

[0015] As an improvement, multiple sets of mounting brackets are installed on the underside of the mounting base.

[0016] III. Beneficial Effects

[0017] The advantages of this utility model compared with the prior art are as follows: the clamping component is inserted into the inner side of one end of the finned coil, the moving block moves on the outside of the threaded sleeve, and the clamping component is driven to move towards the inner wall of the finned coil through two sets of folding frames. Multiple sets support the inner wall of the finned coil, which plays the role of clamping and positioning the finned coil. It is not limited by the outer shape of the finned coil, has a simple structure, and low equipment cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the upper structure of a clamping device for welding finned coils according to this utility model.

[0019] Figure 2 This is a schematic diagram of the lower structure of a clamping device for welding finned coils according to this utility model.

[0020] Figure 3 This is a schematic diagram of the upper structure of the L-shaped adjusting frame of a clamping device for welding finned coils according to this utility model.

[0021] Figure 4 This is a schematic diagram of the lower side structure of the L-shaped adjusting frame of a clamping device for welding finned coils according to this utility model.

[0022] Figure 5 This is a schematic diagram of the lower side structure of the mounting base of a clamping device for welding finned coils according to this utility model.

[0023] As shown in the figure: 1. Mounting base; 2. L-shaped adjusting bracket; 3. Positioning rod; 4. Positioning block; 5. Threaded sleeve; 6. Moving block; 7. Folding frame; 8. Clamping component; 9. Limiting rod; 10. Limiting slide groove; 11. Limiting slider; 12. Gear one; 13. Gear two; 14. Motor; 15. Control switch; 16. Storage slot; 17. Threaded shaft; 18. Tightening block; 19. Limiting block; 20. Strip slide; 21. Slide groove; 22. Mounting bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] As attached Figure 1 As shown, a clamping device for welding finned coils includes a mounting base 1 and an L-shaped adjusting frame 2. Multiple sets of mounting frames 22 are installed on the lower side of the mounting base 1. The mounting base 1 is installed on the welding machine frame by means of bolts passing through the mounting frames 22.

[0027] As attached Figure 3 and attached Figure 4As shown, a clamping assembly is installed on the vertical side wall of the L-shaped adjusting frame 2. The clamping assembly includes a positioning block 4 and a threaded sleeve 5. The threaded sleeve 5 is rotatably mounted on the vertical side wall of the L-shaped adjusting frame 2. A positioning rod 3 is installed on one side of the positioning block 4. One end of the positioning rod 3 passes through the threaded sleeve 5 and is fixedly connected to the L-shaped adjusting frame 2. A moving block 6 is installed on the outside of the threaded sleeve 5 and is connected by a thread. Folding frames 7 are rotatably connected to the upper sides of the positioning block 4 and the threaded sleeve 5, respectively. A clamping member 8 is rotatably connected between the other ends of the two corresponding sets of folding frames 7. A drive assembly is installed on the vertical side wall of the frame 2. The drive assembly includes a first gear 12 and a second gear 13. The first gear 12 is fixedly sleeved on the outside of the threaded sleeve 5. The second gear 13 meshes with the first gear 12. A motor 14 is installed on the side wall of the L-shaped adjustment frame 2, which drives the second gear 13 to rotate. A control switch 15 connected to the motor 14 is installed on the side wall of the L-shaped adjustment frame 2. The motor 14 is started by the control switch 15, which drives the second gear 13 to rotate. The second gear 13 meshes with the first gear 12, which in turn drives the first gear 12 and the threaded sleeve 5 to rotate.

[0028] The threaded sleeve 5 drives the moving block 6 to move laterally. When the moving block 6 moves, it pushes the folding frame 7 to move. The included angle between the two sets of folding frames 7 decreases, and the clamping member 8 moves towards the inner wall of the finned coil to clamp and position the inner wall of the finned coil. The included angle between the two sets of folding frames 7 increases, and the clamping member 8 moves towards the threaded sleeve 5, away from the inner wall of the finned coil, so that the angle of the finned coil can be adjusted outside the multiple sets of clamping members 8.

[0029] To ensure smooth movement of the clamping components when holding the 8 pairs of finned coils, as shown in the attached... Figure 3 As shown, a limiting rod 9 slides through the inside of the clamping member 8. One end of the limiting rod 9 is connected to a limiting slider 11. The vertical side wall of the L-shaped adjusting frame 2 is provided with a limiting groove 10 that cooperates with the limiting slider 11 and the limiting rod 9 to slide. The limiting groove 10 has a convex structure, which allows the limiting rod 9 to slide out of the limiting groove 10. The limiting slider 11 slides within the limiting groove 10 to limit the limiting rod 9. The clamping member 8 is limited by the limiting rod 9 sliding through the inside of the clamping member 8.

[0030] Example 2

[0031] Based on Embodiment 1, in order to adapt the clamping device to finned coils of different lengths, as shown in the attached... Figure 2 Appendix Figure 4 and attached Figure 5As shown, the mounting base 1 has a storage groove 16 inside. The lower side wall of the L-shaped adjusting bracket 2 slides out of the storage groove 16. A positioning component is installed inside the storage groove 16. The positioning component includes a threaded shaft 17. The upper end of the threaded shaft 17 passes through the top of the storage groove 16 and is connected by a thread. A limit block 19 is fixedly installed on the lower outer side of the threaded shaft 17. A screw block 18 is installed at the lower end of the threaded shaft 17. Rotating the screw block 18 drives the threaded shaft 17 to rotate, and the threaded shaft 17 drives the limit block 19 to move up and down. The lower side wall of the L-shaped adjustment frame 2 is provided with a strip-shaped slide 20. The threaded shaft 17 slides through the strip-shaped slide 20. The lower edge of the strip-shaped slide 20 is provided with a groove 21 through which the limiting block 19 passes. The threaded shaft 17 passes through the inner side of the strip-shaped slide 20. The limiting block 19 is moved downward to release the limitation on the L-shaped adjustment frame 2. The L-shaped adjustment frame 2 slides inside the storage groove 16. The position of the clamping assembly is adjusted. The threaded shaft 17 is rotated upward to move the limiting block 19 upward and clamp it at the top of the groove 21. The L-shaped adjustment frame 2 is fixedly installed inside the storage groove 16.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A clamping device for welding finned coils, comprising a mounting base (1) and an L-shaped adjusting frame (2), characterized in that: The mounting base (1) has a storage slot (16) inside. The lower side wall of the L-shaped adjustment bracket (2) slides out through the storage slot (16). A positioning component is installed inside the storage slot (16) to fix the L-shaped adjustment bracket (2) inside the storage slot (16). A clamping assembly is installed on the vertical side wall of the L-shaped adjustment frame (2). The clamping assembly includes a positioning block (4) and a threaded sleeve (5). The threaded sleeve (5) is rotatably installed on the vertical side wall of the L-shaped adjustment frame (2). A positioning rod (3) is installed on one side of the positioning block (4). One end of the positioning rod (3) passes through the threaded sleeve (5) and is fixedly connected to the L-shaped adjustment frame (2). A movable block (6) is installed on the outside of the threaded sleeve (5) and connected by a thread. A folding frame (7) is rotatably connected to the upper side of the positioning block (4) and the threaded sleeve (5). A clamping member (8) is rotatably connected between the other ends of the two sets of folding frames (7). A driving component is installed on the vertical side wall of the L-shaped adjusting frame (2) to drive the threaded sleeve (5) to rotate.

2. The clamping device for welding finned coils according to claim 1, characterized in that: The drive assembly includes a first gear (12) and a second gear (13). The first gear (12) is fixedly sleeved on the outside of the threaded sleeve (5). The second gear (13) meshes with the first gear (12). A motor (14) is installed on the side wall of the L-shaped adjustment frame (2) to drive the second gear (13) to rotate. A control switch (15) connected to the motor (14) is installed on the side wall of the L-shaped adjustment frame (2).

3. The clamping device for welding finned coils according to claim 2, characterized in that: The clamping member (8) slides through the limiting rod (9) inside. One end of the limiting rod (9) is connected to the limiting slider (11). The vertical side wall of the L-shaped adjusting frame (2) is provided with a limiting groove (10) that cooperates with the limiting slider (11) and the limiting rod (9) to slide. The limiting groove (10) has a convex structure.

4. The clamping device for welding finned coils according to claim 1, characterized in that: The positioning component includes a threaded shaft (17), the upper end of which protrudes from the top of the receiving groove (16) and is connected by a thread. A limit block (19) is fixedly installed on the lower outer side of the threaded shaft (17), and a screw block (18) is installed on the lower end of the threaded shaft (17).

5. The clamping device for welding finned coils according to claim 4, characterized in that: The L-shaped adjusting frame (2) has a strip slide (20) on its lower side wall. The threaded shaft (17) slides through the strip slide (20). The lower edge of the strip slide (20) has a groove (21) through which the limiting block (19) passes.

6. The clamping device for welding finned coils according to claim 1, characterized in that: Multiple mounting brackets (22) are installed on the lower side of the mounting base (1).

Images