Fin pressing mechanism of a head fin welding device

Abstract

The application provides a fin pressing mechanism of a head fin welding device and belongs to the technical field of machinery. The existing head and fin welding efficiency is improved. The welding device comprises a mounting frame, a sliding frame is slidably connected in the mounting frame, the pressing mechanism comprises a rotating plate, a limiting block, a first elastic member and a third elastic member, the rotating plate and the limiting block are both below the sliding frame, the rear end of the rotating plate is hinged to the sliding frame, the limiting block is hinged to the front end of the rotating plate, the bottom of the limiting block is provided with a limiting groove, the two ends of the first elastic member are respectively applied to the sliding frame and the limiting block, the first elastic member makes the limiting block always have a tendency to press on the head, the two ends of the third elastic member are respectively applied to the sliding frame and the rotating plate, and the third elastic member makes the rotating plate always have a tendency to rotate downward around the sliding frame and press on the head. The fin pressing mechanism has the advantages that the fin is pressed on the head, and the fin and the head can be automatically welded.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of machinery and relates to a fin pressing mechanism of a head fin welding device. BACKGROUND

[0002] Dryers and reaction kettles and the like equipment all include a shell, and a heat exchange jacket is generally arranged on the outer side wall of the shell, cold or hot coolant is introduced or discharged into the heat exchange jacket, the material in the reaction kettle is heated or cooled, a specific chemical reaction is realized, and material adhesion and deposition can be avoided, and the equipment is easy to clean and maintain.

[0003] The existing dryers and reaction kettles and the like equipment, for example, a winding fin type heat exchange equipment is disclosed in Chinese patent document [application number: 202222626092.7; authorized announcement number: CN218673238U], which includes an inner cylinder and a lower head, the lower head is fixedly connected with the lower end of the inner cylinder, the outer side of the inner cylinder and / or the lower head is provided with a jacket, the upper part of the jacket is provided with an upper cold and hot medium inlet and outlet, and the lower part is provided with a lower cold and hot medium inlet and outlet, the outer surface of the inner cylinder and / or the lower head is wound with a spiral fin, and the fin is welded and fixed with the corresponding inner cylinder or lower head.

[0004] The heat exchange equipment with the above structure has the spiral fin wound on the outer surface of the inner cylinder and / or the lower head, the heat exchange area is increased through the fin, and the heat exchange effect of the dryers and reaction kettles and the like equipment is improved. However, the fin of the heat exchange equipment with the above structure is welded and fixed on the inner cylinder and / or the lower head, and the welding is performed by manual operation of the operator, the operator needs to pull the fin with one hand and press the fin on the head, and holds the welding gun with the other hand to perform welding, which is time-consuming and laborious, and the welding efficiency is low; at the same time, the distance between the adjacent two circles of fins cannot be controlled well, and the distance between the fin and the inner cylinder and the lower head also cannot be accurately controlled, the welding quality is poor, and the heat exchange effect of the equipment is affected. SUMMARY

[0005] The fin pressing mechanism of the head fin welding device is proposed to solve the above problems in the prior art, and the technical problem of how to press the fin on the head is solved.

[0006] The object of the present application can be achieved by the following technical solutions: the fin pressing mechanism of the head fin welding device, the welding device comprising a mounting frame, a sliding frame being slidably connected in the mounting frame, characterized in that the pressing mechanism comprises a rotating plate, a limiting block, a first elastic member and a third elastic member, the rotating plate and the limiting block being located below the sliding frame, the rear end of the rotating plate being hinged to the sliding frame, the limiting block being hinged to the front end of the rotating plate, the bottom of the limiting block having a limiting slot for the fin to pass through, the two ends of the first elastic member acting on the sliding frame and the limiting block respectively, the first elastic member causing the limiting block to always have a tendency to press on the head, the two ends of the third elastic member acting on the sliding frame and the rotating plate respectively, the third elastic member causing the rotating plate to always have a tendency to rotate downward around the sliding frame and press on the head.

[0007] The fin pressing mechanism is part of the head fin welding device, in operation, the head is first positioned on the rotating mechanism, then the fin is passed through the limiting slot, under the action of the third elastic member, the pressing plate drives the limiting block to move towards the head, under the action of the first elastic member, the limiting block moves towards the head, the fin is pressed on the head, that is, through the cooperation of the third elastic member and the first elastic member, through the rotating plate and the limiting block, the fin is pressed on the head, the fin is positioned, so that the welding gun provided on the sliding frame can weld the fin on the head, the fin and the head can be automatically welded.

[0008] In the fin pressing mechanism of the head fin welding device, the first elastic member is located between the sliding frame and the limiting block, a positioning rod is fixedly connected in the sliding frame, the first elastic member is sleeved outside the positioning rod, the top of the first elastic member acts on the sliding frame, and the bottom of the first elastic member is located below the positioning rod and acts on the top of the limiting block. The positioning rod plays a positioning role, preventing the first elastic member from deviating from the set position, the bottom of the first elastic member is located below the positioning rod, ensuring that the first elastic member has sufficient elastic force acting on the limiting block.

[0009] In the fin pressing mechanism of the head fin welding device, the third elastic member is located between the sliding frame and the rotating plate, the number of the third elastic members is two, and the tops of the two third elastic members act on the two sides of the middle of the bottom of the sliding frame respectively, and the bottoms of the two third elastic members act on the two sides of the middle of the top of the rotating plate respectively. This structure improves the stability of the rotating plate, so that the limiting plate can more stably press the fin.

[0010] In the fin pressing mechanism of the head fin welding device, the first elastic member and the third elastic member are both cylindrical springs or conical springs.

[0011] In the fin pressing mechanism of the head fin welding device, the two ends of the limiting groove away from the front groove wall of the rotating plate are provided with first guide surfaces inclined outward, and the first guide surfaces make the two ends of the limiting groove in a flared shape. The first guide surface plays a guiding role and is adapted to the helical welding of the fin on the head, so that the fin can better enter and leave the limiting groove, and the fin and the limiting block do not have the problem of being stuck, so that the limiting block can better press the fin, and the fin and the head can be automatically welded.

[0012] In the fin pressing mechanism of the head fin welding device, the two sides of the limiting block away from the front end face of the rotating plate are provided with second guide surfaces inclined inward toward the corresponding end of the limiting groove. The second guide surface plays a guiding role and is adapted to the helical welding of the fin on the head, so that the limiting block moves downward along the helical fin, and the limiting block and the fin do not have the problem of being stuck, so that the limiting block can better press the fin, and the fin and the head can be automatically welded.

[0013] In the fin pressing mechanism of the head fin welding device, the bottom of the rear end of the limiting block is hinged to the front end of the rotating plate, the front end of the rotating plate is upwardly inclined, the front end of the rotating plate has a first avoiding space for welding of the welding gun, the rear end of the limiting block has a second avoiding space for welding of the welding gun, and the first avoiding space, the second avoiding space and the limiting groove are in communication. Reasonably utilize the space, so that the welding head of the welding gun can be inserted into and located at the set welding position, so that the welding gun can weld the fin and the head, and the fin and the head can be automatically welded; the front end of the rotating plate is upwardly inclined, so that the limiting block does not contact the head, the limiting block plays a role of active positioning of the fin, the fin does not have the problem of being stuck, the limiting block can better press the fin, the fin is guaranteed to be pressed in place and welded in place, and the welding precision is improved.

[0014] In the fin pressing mechanism of the head fin welding device, the front end of the rotating plate is rotatably connected with a pair of guide wheels, and the pair of guide wheels are partially located in the limiting groove. The guide wheels cooperate with the first guide surface to play a role of guiding and positioning the fin, reduce the contact friction between the fin and the limiting block, reduce the friction, make the fin move smoothly, and guarantee the fin to be pressed in place.

[0015] In the fin pressing mechanism of the head fin welding device, the rotating plate comprises a main body, an extension part and an adjusting rod, the rear end of the main body is hinged to the sliding frame, the front end has an extension slot, the rear end of the extension part is embedded into the extension slot, the limiting block is hinged to the front end of the extension part, the adjusting rod is located in the extension slot, the two ends of the adjusting rod are threadedly connected with the main body and the extension part respectively, and rotating the adjusting rod makes the extension part move relative to the main body.

[0016] In the fin pressing mechanism of the head fin welding device, the two side slot walls of the extension slot are provided with first guide slots in a strip shape, the two sides of the extension part are provided with second guide slots in a strip shape, and a plurality of balls are arranged in the first guide slots and the second guide slots.

[0017] Compared with the prior art, the fin pressing mechanism of the head fin welding device has the following advantages:

[0018] 1. The fin pressing mechanism is pressed on the head by the first elastic member, the third elastic member, the rotating plate and the limiting block, so that the fin is positioned, the welding gun arranged on the sliding frame can weld the fin on the head, and the fin and the head can be automatically welded.

[0019] 2. The fin is arranged in the limiting slot of the limiting block, the position of the fin is limited by the limiting block and the limiting slot, the fin can be spirally and equidistantly lowered, and the fin and the head can be automatically welded. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the processing state diagram of the fin pressing mechanism, the fin and the head.

[0021] Figure 2 is the structure schematic diagram of the fin pressing mechanism when the fin pressing mechanism is installed on the mounting frame.

[0022] Figure 3 is the overall structure schematic diagram of the fin pressing mechanism.

[0023] Figure 4 is the overall structure explosion diagram of the fin pressing mechanism.

[0024] Figure 5 is the bottom structure schematic diagram of the limiting block and the rotating plate of the fin pressing mechanism.

[0025] In the figure, 1. Mounting bracket; 2. Sliding bracket; 3. Rotating plate; 31. First clearance space; 32. Main body; 33. Extension part; 34. Adjusting rod; 35. Extension groove; 36. First guide groove; 37. Second guide groove; 38. Ball bearing; 4. Limiting block; 41. Second guide surface; 42. Second clearance space; 5. First elastic element; 6. Third elastic element; 7. Fin; 8. Limiting groove; 81. First guide surface; 9. End cap; 10. Positioning rod; 11. Guide wheel. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 1 As shown, the welding device includes a mounting frame 1, a sliding frame 2, and a clamping mechanism. The sliding frame 2 is slidably connected to the mounting frame 1. The clamping mechanism is mounted on the sliding frame 2 and includes a rotating plate 3, a limiting block 4, a first elastic element 5, and a third elastic element 6. The rotating plate 3 and the limiting block 4 are both located below the sliding frame 2. In this embodiment, the first elastic element 5 and the third elastic element 6 are both cylindrical springs. In actual production, the first elastic element 5 and the third elastic element 6 can both be disc springs.

[0028] like Figure 2 , Figure 3 , Figure 4 As shown, the rear end of the rotating plate 3 is hinged to the sliding frame 2, and the bottom of the rear end of the limiting block 4 is hinged to the front end of the rotating plate 3. The bottom of the limiting block 4 has a limiting groove 8 for the fins 7 to pass through. The front end of the rotating plate 3 has a first clearance space 31 for welding gun welding, and the rear end of the limiting block 4 has a second clearance space 42 for welding gun welding. The first clearance space 31, the second clearance space 42, and the limiting groove 8 are connected. The front end of the rotating plate 3 is tilted upwards, and a pair of guide wheels 11 are rotatably connected to the front end of the rotating plate 3. Both guide wheels 11 are partially located in the limiting groove 8.

[0029] The first elastic element 5 is located between the sliding frame 2 and the limiting block 4. A positioning rod 10 is fixedly connected in the sliding frame 2. The first elastic element 5 is sleeved on the positioning rod 10. The top of the first elastic element 5 acts on the sliding frame 2, and the bottom is located below the positioning rod 10 and acts on the top of the limiting block 4. The first elastic element 5 makes the limiting block 4 always tend to press against the end cap 9. The third elastic element 6 is located between the sliding frame 2 and the rotating plate 3. There are two third elastic elements 6. The tops of the two third elastic elements 6 act on the two sides of the bottom middle of the sliding frame 2, and the bottoms act on the two sides of the top middle of the rotating plate 3, respectively. The third elastic elements 6 make the rotating plate 3 always tend to rotate downward around the sliding frame 2 and press against the end cap 9.

[0030] The rotating plate 3 includes a main body 32, an extension 33, and an adjusting rod 34. The rear end of the main body 32 is hinged to the sliding frame 2, and the front end has an extension groove 35. The rear end of the extension 33 is embedded in the extension groove 35. The limiting block 4 is hinged to the front end of the extension 33. Both sides of the extension groove 35 have elongated first guide grooves 36, and both sides of the extension 33 have elongated second guide grooves 37. Ball bearings 38 are provided in the first guide grooves 36 and the second guide grooves 37. The adjusting rod 34 is located in the extension groove 35, and both ends of the adjusting rod 34 are threadedly connected to the main body 32 and the extension 33, respectively. Rotating the adjusting rod 34 causes the extension 33 to move relative to the main body 32.

[0031] like Figure 5 As shown, both ends of the front groove wall of the limiting groove 8 away from the rotating plate 3 have a first guide surface 81 that is inclined outward, making both ends of the limiting groove 8 flared. Both sides of the front end face of the limiting block 4 away from the rotating plate 3 have a second guide surface 41 that is inclined, and the second guide surface 41 is inclined inward toward the corresponding end of the limiting groove 8.

[0032] During operation, the end cap 9 is first positioned on the rotating mechanism, and then the fins 7 are passed through the limiting groove 8. Under the action of the third elastic element 6, the pressing plate drives the limiting block 4 to move toward the end cap 9. Under the action of the first elastic element 5, the limiting block 4 moves toward the end cap 9, pressing the fins 7 onto the end cap 9. Then the rotating mechanism is started, and the fins 7 are welded onto the end cap 9 in a spiral shape by welding with a welding gun.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0034] Although this document frequently uses terms such as mounting bracket 1, sliding bracket 2, rotating plate 3, first clearance space 31, main body 32, extension 33, adjusting rod 34, extension groove 35, first guide groove 36, second guide groove 37, ball bearing 38, limiting block 4, second guide surface 41, second clearance space 42, first elastic element 5, third elastic element 6, fin 7, limiting groove 8, first guide surface 81, end cap 9, positioning rod 10, and guide wheel 11, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A fin pressing mechanism of a head fin welding device, the welding device comprising a mounting frame (1) and a sliding frame (2) slidably connected in the mounting frame (1), characterized in that, The pressing mechanism comprises a rotating plate (3), a limiting block (4), a first elastic member (5) and a third elastic member (6), the rotating plate (3) and the limiting block (4) are both located below the sliding frame (2), the rear end of the rotating plate (3) is hinged to the sliding frame (2), the limiting block (4) is hinged to the front end of the rotating plate (3), the bottom of the limiting block (4) is provided with a limiting slot (8) for the fin (7) to pass through, the two ends of the first elastic member (5) are respectively applied to the sliding frame (2) and the limiting block (4), the first elastic member (5) makes the limiting block (4) always have a tendency to press on the head (9), the two ends of the third elastic member (6) are respectively applied to the sliding frame (2) and the rotating plate (3), the third elastic member (6) makes the rotating plate (3) always have a tendency to rotate downward around the sliding frame (2) and press on the head (9).

2. The head fin welding apparatus fin hold down mechanism of claim 1 wherein, The first elastic member (5) is located between the sliding frame (2) and the limiting block (4), the sliding frame (2) is fixedly connected with a positioning rod (10), the first elastic member (5) is sleeved outside the positioning rod (10), the top of the first elastic member (5) is applied to the sliding frame (2), and the bottom of the first elastic member (5) is located below the positioning rod (10) and is applied to the top of the limiting block (4).

3. The head fin welding apparatus fin hold down mechanism of claim 1 wherein, The third elastic member (6) is located between the sliding frame (2) and the rotating plate (3), the number of the third elastic member (6) is two, and the top of the two third elastic members (6) is respectively applied to the both sides of the middle of the bottom of the sliding frame (2), and the bottom of the two third elastic members (6) is respectively applied to the both sides of the middle of the top of the rotating plate (3).

4. The fin pressing mechanism of a head fin welding apparatus according to claim 1 or 2 or 3, characterized in that, The first elastic member (5) and the third elastic member (6) are both cylindrical springs or conical springs.

5. The fin pressing mechanism of a head fin welding apparatus according to claim 1 or 2 or 3, characterized in that, The two ends of the front slot wall of the limiting slot (8) away from the rotating plate (3) are both provided with first guide surfaces (81) which are obliquely outward inclined, and the first guide surfaces (81) make the two ends of the limiting slot (8) both be flared.

6. The fin pressing mechanism of a header fin welding apparatus according to claim 1 or 2 or 3, characterized by The two sides of the front end face of the limiting block (4) away from the rotating plate (3) are both provided with second guide surfaces (41) which are obliquely inward inclined.

7. The fin pressing mechanism of a header fin welding apparatus according to claim 1 or 2 or 3, characterized by The bottom of the rear end of the limiting block (4) is hinged to the front end of the rotating plate (3), the front end of the rotating plate (3) is upwardly inclined, the front end of the rotating plate (3) is provided with a first avoiding space (31) for a welding gun to weld, the rear end of the limiting block (4) is provided with a second avoiding space (42) for the welding gun to weld, and the first avoiding space (31), the second avoiding space (42) and the limiting slot (8) are communicated.

8. The fin pressing mechanism of a header fin welding apparatus according to claim 1 or 2 or 3, characterized by, The front end of the rotating plate (3) is rotatably connected with a pair of guide wheels (11), and the pair of guide wheels (11) are both partially located in the limiting slot (8).

9. The fin pressing mechanism of a header fin welding apparatus according to claim 1 or 2 or 3, characterized by, The rotating plate (3) comprises a main body (32), an extension part (33) and an adjusting rod (34), the rear end of the main body (32) is hinged to the sliding frame (2), the front end is provided with an extension groove (35), the rear end of the extension part (33) is embedded into the extension groove (35), the limiting block (4) is hinged to the front end of the extension part (33), the adjusting rod (34) is located in the extension groove (35), the two ends of the adjusting rod (34) are respectively screwed with the main body (32) and the extension part (33), and rotating the adjusting rod (34) can make the extension part (33) move relative to the main body (32).

10. The head fin welding apparatus fin hold down mechanism of claim 9 wherein, The two side groove walls of the extension groove (35) are both provided with first guide grooves (36) in the shape of long strips, the two sides of the extension part (33) are both provided with second guide grooves (37) in the shape of long strips, and a plurality of ball bearings (38) are arranged in the first guide grooves (36) and the second guide grooves (37).

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