Bent pipe flange welding forming clamping device for automobile mixer

Abstract

The utility model provides an automobile mixer elbow pipe flange welding forming clamping device which comprises a base, one end of the base is provided with a supporting mechanism used for fixing a flange, and the side wall of the supporting mechanism is provided with a limiting mechanism used for limiting the flange. The other end of the base is provided with a fixing mechanism used for fixing a bent pipe, the fixing mechanism comprises guide rails, the guide rails are symmetrically installed on the surface of the base, and the surfaces of the guide rails are in sliding connection with a sliding seat; the side wall of the sliding base is fixedly connected with a supporting plate used for supporting the fixing block. The fixing block is clamped on the inner side wall of the bent pipe; the bottom end of the fixing block is fixedly connected with an elastic rod, a plurality of rubber blocks are installed on the bottom face of the elastic rod, and the rubber blocks are connected with the inner side wall of the bent pipe in a sliding mode. The bent pipe and flange welding forming clamping device for the automobile mixer has the advantages that the bent pipe and the flange can be conveniently and rapidly positioned and spliced, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixer welding, in particular to a elbow flange welding forming clamping device for automobile mixers. Background Art

[0002] The exhaust gas emitted by automobiles mainly contains pollutants such as NOx, HC, CO, and particulate matter. The pollutants are emitted near the ground and are easily absorbed by the human body. Exhaust pollutants enter the respiratory tract through the nasal cavity and oral cavity, causing damage in the human body, reducing the immunity of the respiratory system, and causing symptoms such as bronchitis and weakened lung function. In order to purify automobile exhaust, the DOC+DPF+mixer+SCR method is used to remove harmful substances in automobile exhaust. In the process of purifying exhaust, the role of the mixer is to crush the urea and mix it with the exhaust gas before entering the SCR.

[0003] During the welding process between the mixer components, the shorter end of the straight section of the elbow needs to be welded to the flange. During the welding process, since the longer end of the straight section of the elbow faces upward, the elbow is prone to fall downward under the action of the center of gravity, resulting in deviations in the connection between the elbow and the flange. There are differences in the size, angle, etc. after welding, which reduces the welding quality.

[0004] Therefore, it is necessary to provide a new automobile mixer elbow flange welding forming clamping device to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a welding and forming clamping device for an automobile mixer elbow flange, which is convenient for rapid positioning and splicing of the elbow and the flange and improves welding quality.

[0006] To solve the above technical problems, the present invention provides a welding and forming clamping device for an automobile mixer elbow flange, comprising: a base, one end of which is mounted a support mechanism for fixing the flange, and a side wall of the support mechanism is mounted with a limiting mechanism for limiting the flange; the other end of the base is mounted with a fixing mechanism for fixing the elbow, the fixing mechanism comprising guide rails symmetrically mounted on the surface of the base and slidably connected to a slide; the side wall of the slide is fixedly connected to a support plate for providing support for a fixing block; the fixing block engages the inner side wall of the elbow; the bottom end of the fixing block is fixedly connected to an elastic rod, the bottom surface of the elastic rod is mounted with a plurality of rubber blocks, and the rubber blocks are slidably connected to the inner side wall of the elbow.

[0007] Preferably, the support mechanism includes a support frame and a socket, the support frame is fixed to the surface of the base, and the top end of the support frame is fixedly connected to the socket for engaging with the flange.

[0008] Preferably, the limiting mechanism includes a second cylinder, the surface of the base is fixedly connected to the second cylinder, one end of the second cylinder is connected to a connecting plate, the side wall of the connecting plate is rotatably connected to three rotating plates, the top of the rotating plate is fixedly connected to a second limiting plate whose inner and outer walls are both arc-shaped, and the second limiting plate contacts the surface of the flange.

[0009] Preferably, the limiting mechanism further includes a clamping plate, a plurality of the clamping plates are fixed to the side walls of the support frame, the side walls of the rotating plate are provided with a "V"-shaped slot, and the clamping plates are slidably connected and engaged with the inside of the slot.

[0010] Preferably, a first cylinder is installed on the side wall of the base, and one end of the first cylinder is connected to the slide seat.

[0011] Preferably, the side wall of the rubber block is hemispherical, and the diameter of the rubber block gradually increases along the elastic rod toward the fixed block.

[0012] Compared with the related art, the elbow flange welding forming clamping device for automobile mixer provided by the utility model has the following beneficial effects:

[0013] The utility model provides a welding and forming clamping device for an elbow flange for an automobile mixer. When welding the flange and the elbow, first, the shorter end of the straight section of the elbow is spliced with the flange, the fixing block is aligned with the longer end of the straight section of the elbow, the flange is mounted on the surface of the support mechanism, and the limiting mechanism is opened to fix the position of the flange; the slide is moved and moves along the guide rail, and the fixing block drives the elastic rod and the rubber block to enter the interior of the elbow. After the rubber block enters the inner wall of the elbow, it is squeezed and deformed, and the rubber block reversely squeezes the elbow downward, thereby increasing the squeezing force and stability of the connection between the elbow and the flange. The diameter of the rubber block gradually increases along the elastic rod toward the fixing block. As the rubber block enters, the downward squeezing force of the rubber block on the elbow becomes greater and greater, thereby maintaining the stability of the connection between the elbow and the flange. As the fixing block enters the interior of the elbow, the position of the elbow is fixed, thereby avoiding dislocation of the connection between the elbow and the flange during welding and improving welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a preferred embodiment of the elbow flange welding and forming clamping device for automobile mixers provided by the utility model;

[0015] Figure 2 A front view of the overall structure provided for the utility model;

[0016] Figure 3 for Figure 1 A front view of the fixing mechanism structure shown;

[0017] Figure 4 for Figure 1 A top view of the base structure shown;

[0018] Figure 5 for Figure 2 Schematic diagram of the transfer plate structure shown;

[0019] Figure 6 This is a schematic diagram of the exploded structure of the elbow and flange provided by the utility model.

[0020] Numbers in the figure: 1. base, 2. fixing mechanism, 21. slide, 22. guide rail, 23. support plate, 24. first cylinder, 25. first limit plate, 26. fixing block, 27. elastic rod, 28. rubber block, 3. elbow, 4. flange, 5. support mechanism, 51. support frame, 52. holder, 6. limit mechanism, 61. second cylinder, 62. connecting plate, 63. rotating plate, 64. slot, 65. splint, 66. second limit plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0022] See also Figures 1 to 6 , Figure 1 This is a structural schematic diagram of a preferred embodiment of the elbow flange welding and forming clamping device for automobile mixers provided by the utility model; Figure 2 A front view of the overall structure provided for the utility model; Figure 3 for Figure 1 A front view of the fixing mechanism structure shown; Figure 4 for Figure 1 A top view of the base structure shown; Figure 5 for Figure 2 Schematic diagram of the transfer plate structure shown; Figure 6 This is an exploded schematic diagram of the elbow and flange structure provided by the present invention. The elbow flange welding and forming clamping device for automobile mixers comprises a base 1, one end of which is mounted a support mechanism 5 for securing a flange 4. The support mechanism 5 comprises a support frame 51 and a retaining seat 52. The support frame 51 is fixed to the surface of the base 1, and the top end of the support frame 51 is fixedly connected to the retaining seat 52 for engaging the flange 4. To facilitate engagement of the flange 4 with the retaining seat 52, the flange 4 is placed on the surface of the retaining seat 52, facilitating the splicing of the flange 4 with the elbow 3.

[0023] The side wall of the support mechanism 5 is installed with a limiting mechanism 6 for limiting the flange 4; the limiting mechanism 6 includes a second cylinder 61, the surface of the base 1 is fixedly connected to the second cylinder 61, one end of the second cylinder 61 is connected to the connecting plate 62, the side wall of the connecting plate 62 is rotatably connected to three rotating plates 63, the top of the rotating plate 63 is fixedly connected to the second limiting plate 66 with arc-shaped inner and outer walls, and the second limiting plate 66 contacts the surface of the flange 4; the limiting mechanism 6 also includes a splint 65, a plurality of the splints 65 are fixed to the side wall of the support frame 51, the side wall of the rotating plate 63 is provided with a "V"-shaped groove 64, the splint 65 is slidably connected and engages with the inside of the groove 64; when needed When fixing the flange 4, the second cylinder 61 is opened, and the second cylinder 61 pushes the connecting plate 62 to move downward, and the connecting plate 62 drives one end of the rotating plate 63 to move downward. At this time, the clamping plate 65 slides inside the slot 64, and the side wall of the slot 64 is "V"-shaped, and the rotating plate 63 is rotatably connected to the connecting plate 62. When the rotating plate 63 moves downward with the connecting plate 62, the "V"-shaped slot 64 moves along the side wall of the clamping plate 65, and the clamping plate 65 pushes the rotating plate 63 and the second limiting plate 66 to rotate toward the base 52, so that the second limiting plate 66 squeezes the flange 4 downward, fixing the flange 4 on the surface of the base 52.

[0024] The other end of the base 1 is equipped with a fixing mechanism 2 for fixing the elbow 3, and the fixing mechanism 2 includes a guide rail 22. The guide rail 22 is symmetrically installed on the surface of the base 1, and the surface of the guide rail 22 is slidably connected to the slide 21; the side wall of the slide 21 is fixedly connected to the support plate 23 for providing support for the fixing block 26; the fixing block 26 engages the inner side wall of the elbow 3; the bottom end of the fixing block 26 is fixedly connected to the elastic rod 27, and a plurality of rubber blocks 28 are installed on the bottom surface of the elastic rod 27, and the rubber block 28 is slidably connected to the inner side wall of the elbow 3; the side wall of the base 1 is equipped with a first cylinder 24, one end of the first cylinder 24 is connected to the slide 21, and when the first cylinder 24 is opened, the first cylinder 24 pushes the slide 21 to move along the guide rail 22, and the fixing block 2 6 drives the elastic rod 27 and the rubber block 28 to enter the interior of the bent pipe 3. After the rubber block 28 enters the inner wall of the bent pipe 3, it is squeezed and deformed. The rubber block 28 reversely squeezes the bent pipe 3 downward, increasing the squeezing force and stability of the connection between the bent pipe 3 and the flange 4. The side wall of the rubber block 28 is hemispherical, and the diameter of the rubber block 28 gradually increases along the elastic rod 27 toward the fixing block 26. As the rubber block 28 enters, the downward squeezing force of the rubber block 28 on the bent pipe 3 becomes greater and greater, maintaining the stability of the connection between the bent pipe 3 and the flange 4. As the fixing block 26 enters the interior of the bent pipe 3, the position of the bent pipe 3 is fixed, thereby avoiding dislocation of the connection between the bent pipe 3 and the flange 4 during welding, thereby improving the welding quality.

[0025] The surface of the base 1 is fixedly connected to the first limit plate 25, and the first limit plate 25 abuts against the bottom end of the slide 21. The first limit plate 25 fixes the slide 21 to prevent the slide 21 from moving too far, which causes the fixed block 26 to exert too much pressure on the bent pipe 3.

[0026] The working principle of the elbow flange welding and forming clamping device for automobile mixers provided by the utility model is as follows: the flange 4 is placed on the surface of the clamping seat 52, the shorter end of the straight section of the elbow 3 is first spliced with the flange 4, and the fixing block 26 is aligned with the longer end of the straight section of the elbow 3. Connect the first cylinder 24 and the second cylinder 61 to the air pump, open the second cylinder 61, the second cylinder 61 pushes the connecting plate 62 to move downward, and the connecting plate 62 drives one end of the rotating plate 63 to move downward. At this time, the clamping plate 65 slides inside the slot 64, and the side wall of the slot 64 is "V"-shaped, and the rotating plate 63 is rotatably connected to the connecting plate 62. When the rotating plate 63 moves downward with the connecting plate 62, the "V"-shaped slot 64 moves along the side wall of the clamping plate 65, and the clamping plate 65 pushes the rotating plate 63 and the second limiting plate 66 to rotate toward the base 52, so that the second limiting plate 66 squeezes the flange 4 downward to fix the flange 4 on the surface of the base 52. The first cylinder 24 is opened, and the first cylinder 24 pushes the slide 21 to move along the guide rail 22. The fixed block 26 drives the elastic rod 27 and the rubber block 28 to enter the interior of the bent pipe 3. After the rubber block 28 enters the inner wall of the bent pipe 3, it is squeezed and deformed. The rubber block 28 squeezes the bent pipe 3 downward in the opposite direction, thereby increasing the extrusion force and stability of the connection between the bent pipe 3 and the flange 4. The side wall of the rubber block 28 is hemispherical, and the diameter of the rubber block 28 gradually increases along the elastic rod 27 toward the fixed block 26. As the rubber block 28 enters, the downward extrusion force of the rubber block 28 on the bent pipe 3 becomes greater and greater, maintaining the stability of the connection between the bent pipe 3 and the flange 4. As the fixed block 26 enters the interior of the bent pipe 3, the position of the bent pipe 3 is fixed, thereby avoiding dislocation of the connection between the bent pipe 3 and the flange 4 during welding, thereby improving the welding quality.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding and forming clamping device for an automobile mixer elbow flange, characterized in that: include: A base (1), wherein a support mechanism (5) for fixing a flange (4) is installed at one end of the base (1), and a limiting mechanism (6) for limiting the flange (4) is installed on a side wall of the support mechanism (5); The other end of the base (1) is provided with a fixing mechanism (2) for fixing the curved pipe (3), the fixing mechanism (2) comprising a guide rail (22), the guide rail (22) being symmetrically mounted on the surface of the base (1), the surface of the guide rail (22) being slidably connected to a slide seat (21); the side wall of the slide seat (21) being fixedly connected to a support plate (23) for providing support for a fixing block (26); the fixing block (26) being engaged with the inner side wall of the curved pipe (3); the bottom end of the fixing block (26) being fixedly connected to an elastic rod (27), the bottom surface of the elastic rod (27) being provided with a plurality of rubber blocks (28), and the rubber blocks (28) being slidably connected to the inner side wall of the curved pipe (3).

2. The elbow flange welding and forming clamping device for automobile mixers according to claim 1, characterized in that: The support mechanism (5) comprises a support frame (51) and a clamping seat (52); the support frame (51) is fixed to the surface of the base (1); the top end of the support frame (51) is fixedly connected to the clamping seat (52) for clamping the flange (4).

3. The elbow flange welding and forming clamping device for automobile mixers according to claim 2, characterized in that: The limiting mechanism (6) includes a second cylinder (61), the surface of the base (1) is fixedly connected to the second cylinder (61), one end of the second cylinder (61) is connected to a connecting plate (62), the side wall of the connecting plate (62) is rotatably connected to three rotating plates (63), the top end of the rotating plate (63) is fixedly connected to a second limiting plate (66) whose inner and outer side walls are both arc-shaped, and the second limiting plate (66) contacts the surface of the flange (4).

4. The elbow flange welding and forming clamping device for automobile mixers according to claim 3, characterized in that: The limiting mechanism (6) further comprises a clamping plate (65), wherein a plurality of the clamping plates (65) are fixed to the side wall of the support frame (51), and the side wall of the rotating plate (63) is provided with a V-shaped card slot (64), and the clamping plates (65) are slidably connected and engage with the interior of the card slot (64).

5. The elbow flange welding and forming clamping device for automobile mixers according to claim 1, characterized in that: A first cylinder (24) is installed on the side wall of the base (1), and one end of the first cylinder (24) is connected to the slide seat (21).

6. The elbow flange welding and forming clamping device for automobile mixers according to claim 1, characterized in that: The surface of the base (1) is fixedly connected to a first limiting plate (25), and the first limiting plate (25) abuts against the bottom end of the slide seat (21).

7. The elbow flange welding and forming clamping device for automobile mixers according to claim 1, characterized in that: The side wall of the rubber block (28) is hemispherical, and the diameter of the rubber block (28) gradually increases along the elastic rod (27) toward the fixed block (26).

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