Welding device for double-exhaust-pipe flexible joint production

Abstract

The utility model discloses a welding device for double exhaust pipe flexible joint production, which comprises a base, one side of the top surface of the base is fixedly connected with a fixed plate, the other side of the top surface of the base is slidably connected with a movable plate, the inner side of the fixed plate is symmetrically provided with two rotating grooves which are communicated with each other, and the two rotating grooves are respectively and movably connected with a support shaft. The two supporting shafts are hollow shafts, clamping pieces are arranged in the supporting shafts, two driving pieces are symmetrically arranged on the inner side of the movable plate, and the two driving pieces are in transmission connection with the two supporting shafts correspondingly. The fixed plate and the movable plate are respectively arranged on the top surface of the base, the pair of supporting shafts is arranged between the fixed plate and the movable plate, and the two driving pieces which are in transmission connection with the supporting shafts are arranged in the movable plate, so that when two flexible joints are welded with a flange, automatic rotating machining is facilitated, manual rotating is not needed, and the working efficiency is improved. And therefore, the step of welding the flexible joints is omitted, and the convenience of welding the two flexible joints and the flange is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding device for the production of double exhaust pipe flexible joints. Background Technology

[0002] Flexible joints for automotive exhaust pipes are crucial connecting components in the automotive industry. Utilizing their inherent airtightness and employing a double-layer hydraulic process with water as the medium during molding, these flexible joints are designed to facilitate the emission of vehicle exhaust gases, minimizing environmental pollution caused by engine exhaust. They absorb vibrations from the exhaust system and prevent excessive thermal deformation, thus providing a comfortable ride. SUS304 stainless steel is the primary material used in the manufacture of flexible joints, as it can withstand high temperatures and corrosion from salt. The bellows can be fitted with a mesh sleeve and expansion joints, which help to reduce engine noise.

[0003] Existing automobiles are divided into single exhaust pipes and dual exhaust pipes. On the exhaust pipe of a dual exhaust pipe automobile, two flexible joints need to be installed. The two flexible joints are welded together by a flange. Then, the flange with the two flexible joints welded together is connected to the exhaust pipe of the automobile. When welding the two flexible joints to the flange, the flexible joints need to be manually adjusted and rotated for rotation welding. In the existing technology, the operator needs to manually rotate the flexible joints to adjust the welding angle, which leads to low efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding device for the production of dual-exhaust-pipe flexible joints.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welding device for producing a double exhaust pipe flexible joint, comprising a base, a fixed plate fixedly connected to one side of the top surface of the base, and a movable plate slidably connected to the other side of the top surface of the base. The fixed plate has two interconnected rotating grooves symmetrically arranged on its inner side, and a support shaft is movably connected to each of the two rotating grooves. Both support shafts are hollow shafts, and clamping members are provided inside the support shafts. Two driving members are symmetrically arranged on the inner side of the movable plate, and the two driving members are respectively connected to the two support shafts for transmission.

[0006] As a further description of the above technical solution: the clamping member includes a connecting plate suspended and fixed inside the support shaft, a partition plate fixedly connected to the side of the connecting plate, the partition plate fixed inside the support shaft, a plurality of second cylinders vertically fixed to the upper and lower sides of the connecting plate respectively, a support plate fixed to the end of each second cylinder on the same side, two telescopic rods symmetrically fixed to the end face of the support plate, the telescopic rods movably penetrating the interior of the support shaft, a guide rod vertically fixed to the end face of the support plate, the guide rod movably penetrating the interior of the support shaft, and a clamping plate fixed to the end of each telescopic rod and the end of the guide rod respectively.

[0007] As a further description of the above technical solution: the driving component includes two drive motors symmetrically fixed on the outside of the movable plate, the two drive motors rotating in opposite directions, and the output end of each drive motor is respectively connected to a rotating shaft. The rotating shaft rotates through the movable plate. The inner side of the movable plate is symmetrically provided with two grooves, and a connecting seat is rotatably connected to each groove. The connecting seat is fixedly connected to the rotating shaft. The end face of the connecting seat is provided with a positioning groove. Each end of the support shaft is provided with a positioning element, and the positioning element is inserted into the positioning groove.

[0008] As a further description of the above technical solution: the positioning component includes a positioning block inserted into the positioning groove, the positioning block movably passing through the support shaft, an electric push rod fixedly connected inside the support shaft, and the end of the electric push rod fixedly connected to the positioning block.

[0009] As a further description of the above technical solution: a ring-shaped limiting groove is concentrically arranged in each of the two rotating grooves, the two limiting grooves are interconnected, and a limiting block is slidably connected in each limiting groove, the limiting block being rotatably connected to the end of the support shaft.

[0010] As a further description of the above technical solution: two first cylinders are symmetrically fixed on the inner side of the fixed plate, and the output shafts of the two first cylinders are fixedly connected to the movable plate. The top surface of the base is symmetrically provided with two guide grooves, and a guide block is slidably connected in each guide groove. The two guide blocks are fixedly connected to the bottom surface of the movable plate.

[0011] As a further description of the above technical solution: the telescopic rod includes a sleeve rod that is vertically fixed to the end face of the support plate. The sleeve rod movably passes through the interior of the support shaft. Two sliding grooves are symmetrically provided inside the sleeve rod. A slider is slidably connected in each of the sliding grooves. A support rod is fixed between the two sliders. The support rod is slidably connected inside the sleeve rod. A spring is fixed between the support rod and the sleeve rod. The support rod is fixedly connected to the clamping plate.

[0012] This utility model has the following beneficial effects:

[0013] Compared with existing technologies, this welding device for producing dual-exhaust-pipe flexible joints features a fixed plate and a movable plate on the top surface of the base, with a pair of support shafts between them. Two drive components connected to the support shafts are located within the movable plate, facilitating automatic rotation of the two flexible joints during welding with the flange. This eliminates the need for manual rotation. Through the coordinated control of the drive motor and positioning blocks, the alternating automatic rotation welding of the two flexible joints is achieved, saving welding steps and improving the convenience of welding the two flexible joints to the flange. Clamping components on the support shafts facilitate radial clamping and fixing of the flange and flexible joint during welding, ensuring alignment of the flange's through-hole with the center of the flexible joint. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of a welding device for producing a dual-exhaust-pipe flexible joint, as proposed in this utility model.

[0015] Figure 2 A perspective view of the connection between the support shaft and the fixing plate of a welding device for producing a double exhaust pipe flexible joint, as proposed in this utility model.

[0016] Figure 3 This is a perspective view of the overall structure of the support shaft of a welding device for producing a double-exhaust-pipe flexible joint, as proposed in this utility model.

[0017] Figure 4 This is a main sectional view of the overall structure of the support shaft of a welding device for producing a dual-exhaust-pipe flexible joint, as proposed in this utility model.

[0018] Figure 5 This is a main sectional view of the connection between the support shaft and the movable plate of a welding device for producing a double exhaust pipe flexible joint according to this utility model.

[0019] Legend:

[0020] 1. Base; 2. Movable plate; 3. First cylinder; 4. Fixed plate; 5. Rotating groove; 6. Drive motor; 7. Limiting groove; 8. Clamping plate; 9. Support shaft; 10. Positioning block; 11. Telescopic rod; 12. Guide rod; 13. Support plate; 14. Second cylinder; 15. Connecting plate; 16. Partition plate; 17. Electric push rod; 18. Groove; 19. Connecting seat; 20. Rotating shaft; 21. Positioning groove. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1 to 5 This utility model provides a welding device for the production of a double exhaust pipe flexible joint: it includes a base 1, a fixed plate 4 fixedly connected to one side of the top surface of the base 1, and a movable plate 2 slidably connected to the other side of the top surface of the base 1. Two first cylinders 3 are symmetrically fixed inside the fixed plate 4, and the output shafts of the two first cylinders 3 are fixedly connected to the movable plate 2. Two guide grooves are symmetrically provided on the top surface of the base 1, and a guide block is slidably connected in each guide groove. The two guide blocks are fixedly connected to the bottom surface of the movable plate 2. Two interconnected rotating grooves 5 are symmetrically provided inside the fixed plate 4. A support shaft 9 is movably connected in each of the two rotating grooves 5. An annular limiting groove 7 is concentrically provided in each of the two rotating grooves 5. The two limiting grooves 7 are interconnected, and a limiting block is slidably connected in each limiting groove 7. The limiting block is rotatably connected to the end of the support shaft 9. Both support shafts 9 are hollow shafts and have clamping parts inside. Two driving parts are symmetrically provided inside the movable plate 2, and the two driving parts are respectively connected to the two support shafts 9.

[0023] The driving component includes two drive motors 6 symmetrically fixed on the outside of the movable plate 2. The two drive motors 6 rotate in opposite directions. The output end of each drive motor 6 is connected to a rotating shaft 20. The rotating shaft 20 rotates through the movable plate 2. The inner side of the movable plate 2 is symmetrically provided with two grooves 18. A connecting seat 19 is rotatably connected in each groove 18. The connecting seat 19 is fixedly connected to the rotating shaft 20. The end face of the connecting seat 19 is provided with a positioning groove 21. Each end of each support shaft 9 is provided with a positioning element, which is inserted into the positioning groove 21.

[0024] The positioning component includes a positioning block 10 inserted into the positioning groove 21. The positioning block 10 movably passes through the support shaft 9. An electric push rod 17 is fixedly connected inside the support shaft 9. The end of the electric push rod 17 is fixedly connected to the positioning block 10.

[0025] The clamping component includes a connecting plate 15 suspended and fixed inside the support shaft 9. A partition 16 is fixedly connected to the side of the connecting plate 15. An electric push rod 17 is horizontally fixed to the side of the partition 16. The partition 16 is fixed inside the support shaft 9. Multiple second cylinders 14 are vertically fixed to the upper and lower sides of the connecting plate 15. A support plate 13 is fixed to the end of the second cylinder 14 on the same side. Two telescopic rods 11 are symmetrically fixed to the end face of the support plate 13. The telescopic rods 11 move through the interior of the support shaft 9. A guide rod 12 is vertically fixed to the end face of the support plate 13. The guide rod 12 moves through the interior of the support shaft 9. A clamping plate 8 is fixed to the end of each telescopic rod 11 and the end of the guide rod 12.

[0026] The telescopic rod 11 includes a sleeve rod that is vertically fixed to the end face of the support plate 13. The sleeve rod moves through the interior of the support shaft 9. Two sliding grooves are symmetrically provided inside the sleeve rod. A slider is slidably connected in each groove. A support rod is fixed between the two sliders. The support rod is slidably connected inside the sleeve rod. A spring is fixed between the support rod and the sleeve rod. The support rod is fixedly connected to the clamping plate 8.

[0027] A fixed plate 4 and a movable plate 2 are respectively set on the top surface of the base 1, and a pair of support shafts 9 are set between the fixed plate 4 and the movable plate 2. Two drive components connected to the support shafts 9 are set in the movable plate 2, which facilitates the automatic rotation processing of the two flexible joints when welding with the flange. Through the coordinated control of the drive motor 6 and the positioning block 10, the alternating automatic rotation welding of the two flexible joints can be realized without manual rotation, thereby saving steps when welding the flexible joints and improving the convenience of welding the two flexible joints with the flange. The clamping component set on the support shaft 9 facilitates the radial clamping and fixing of the flange and the flexible joint during welding, so that the through hole of the flange is aligned with the center of the flexible joint.

[0028] Working principle: In use, the first cylinder 3 drives the movable plate 2 to move, increasing the distance between the movable plate 2 and the fixed plate 4. Simultaneously, the two support shafts 9 separate from the movable plate 2. Then, two flexible joints are respectively sleeved on the outer edges of the two support shafts 9. Next, the flange is sleeved on the outer edges of the two support shafts 9 through two through holes on its surface. Then, the first cylinder 3 pulls the movable plate 2 back to its original position, causing the ends of the support shafts 9 to fit against the inner side of the movable plate 2, and simultaneously causing the flange to abut against the inner side of the movable plate 2. One end of the flexible joint abuts against the inner side of the fixed plate 4, and the other end fits against the end face of the flange. Then, the second cylinder 14 drives the two connecting plates 15 to move in opposite directions, separating the two connecting plates 15. The guide rod 12 and telescopic rod 11 are not moved outwards from the support shaft 9. The telescopic rod 11 and guide rod 12 respectively drive each clamping plate 8 to move in the opposite direction, so that one pair of clamping plates 8 fits against the inner wall of the flange through hole, and the other two pairs of clamping plates 8 fit against the inner wall of the flexible joint. The clamping plate 8 on the telescopic rod 11 first contacts the flange, causing the support rod to move inwards from the sleeve rod. At the same time, the spring is compressed, causing the clamping plate 8 in the flexible joint to continue moving until the clamping plate 8 in the flexible joint fits against its inner wall, so that the flexible joint is aligned with the through hole of the flange. After the flange and the flexible joint are fixed, the electric push rod 17 in one side of the support shaft 9 drives the positioning pin to move out of the support shaft 9. The positioning block 10 is inserted into the positioning groove 21 on the connecting seat 19, while the positioning block 10 on the other side of the support shaft 9 remains inside the support shaft 9. Then, the drive motor 6 on the side connected to the positioning block 10 drives the connecting seat 19 to rotate via the rotating shaft 20. The connecting seat 19 drives the support shaft 9 to rotate within the rotating groove 5. The support shaft 9 with the positioning block 10 not extended will rotate around the support shaft 9 with the positioning block 10 extended, welding the non-rotating flexible joint to the flange. After the support shaft 9 with the positioning block 10 not extended has rotated one revolution around the support shaft 9 with the positioning block 10 extended, the welding of the flexible joint to the flange at that point is completed. Then, the drive motor 6 stops, and the welding of one side of the positioning block 10 is completed. Positioning block 10 is retracted into support shaft 9 by electric push rod 17. Positioning block 10 in support shaft 9 that has not been welded will extend out of support shaft 9 through electric push rod 17 and be inserted into positioning groove 21 at the corresponding position. Then, drive motor 6 at this position drives support shaft 9 on the welded side to rotate around support shaft 9 on the welded side as the center. At the same time, the unwelded flexible joint and flange are welded. After the welding is completed, second cylinder 14 retracts clamping plate 8. Then first cylinder 3 drives movable plate 2 to move, so that movable plate 2 is separated from the two support shafts 9. Then the welded part can be removed from the two support shafts 9, thus completing the welding work of the two flexible joints and flange.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A welding device for producing a double-exhaust-pipe flexible joint, comprising a base (1), characterized in that: A fixed plate (4) is fixedly connected to one side of the top surface of the base (1), and a movable plate (2) is slidably connected to the other side of the top surface of the base (1). Two interconnected rotating grooves (5) are symmetrically arranged on the inner side of the fixed plate (4). A support shaft (9) is movably connected in each of the two rotating grooves (5). Both support shafts (9) are hollow shafts. Clamping parts are provided in the support shafts (9). Two driving parts are symmetrically arranged on the inner side of the movable plate (2). The two driving parts are respectively connected to the two support shafts (9) for transmission.

2. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 1, characterized in that: The clamping component includes a connecting plate (15) suspended and fixed inside the support shaft (9). A partition plate (16) is fixedly connected to the side of the connecting plate (15). The partition plate (16) is fixed inside the support shaft (9). Multiple second cylinders (14) are vertically fixed to the upper and lower sides of the connecting plate (15). A support plate (13) is fixed to the end of each second cylinder (14) on the same side. Two telescopic rods (11) are symmetrically fixed to the end face of the support plate (13). The telescopic rods (11) move through the interior of the support shaft (9). A guide rod (12) is vertically fixed to the end face of the support plate (13). The guide rod (12) moves through the interior of the support shaft (9). A clamping plate (8) is fixed to the end of each telescopic rod (11) and the end of the guide rod (12).

3. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 1, characterized in that: The driving component includes two drive motors (6) symmetrically fixed on the outside of the movable plate (2). The two drive motors (6) rotate in opposite directions. The output end of each drive motor (6) is connected to a rotating shaft (20). The rotating shaft (20) rotates through the movable plate (2). The inner side of the movable plate (2) is symmetrically provided with two grooves (18). Each groove (18) is rotatably connected to a connecting seat (19). The connecting seat (19) is fixedly connected to the rotating shaft (20). The end face of the connecting seat (19) is provided with a positioning groove (21). Each end of the support shaft (9) is provided with a positioning element. The positioning element is inserted into the positioning groove (21).

4. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 3, characterized in that: The positioning component includes a positioning block (10) inserted into the positioning groove (21), the positioning block (10) movably passing through the support shaft (9), an electric push rod (17) fixedly connected inside the support shaft (9), and the end of the electric push rod (17) fixedly connected to the positioning block (10).

5. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 1, characterized in that: An annular limiting groove (7) is concentrically arranged in each of the two rotating grooves (5). The two limiting grooves (7) are interconnected, and a limiting block is slidably connected in each limiting groove (7). The limiting block is rotatably connected to the end of the support shaft (9).

6. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 1, characterized in that: Two first cylinders (3) are symmetrically fixed on the inner side of the fixed plate (4). The output shafts of the two first cylinders (3) are fixedly connected to the movable plate (2). The top surface of the base (1) is symmetrically provided with two guide grooves. A guide block is slidably connected in each guide groove. The two guide blocks are fixedly connected to the bottom surface of the movable plate (2).

7. The welding device for producing a dual-exhaust-pipe flexible joint according to claim 2, characterized in that: The telescopic rod (11) includes a sleeve rod that is vertically fixed to the end face of the support plate (13). The sleeve rod moves through the interior of the support shaft (9). Two sliding grooves are symmetrically provided inside the sleeve rod. A slider is slidably connected in each of the sliding grooves. A support rod is fixed between the two sliders. The support rod is slidably connected inside the sleeve rod. A spring is fixed between the support rod and the sleeve rod. The support rod is fixedly connected to the clamping plate (8).

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