A metal expansion joint welding processing device

Abstract

This utility model relates to a metal expansion joint welding processing device, including: a clamping mechanism and a guide rail; the clamping mechanism includes: a base, a turntable, clamping components, and a drive assembly; the turntable is rotatably mounted on the base; the clamping components are slidably mounted on one end of the turntable along the radial direction; and multiple clamping components are evenly spaced along the circumferential direction of the turntable; the drive assembly simultaneously drives multiple clamping components to slide; the clamping mechanism has two opposing bases, and the two bases are slidably mounted on the guide rail; the sliding bases accommodate expansion joints of different lengths; the drive assembly drives multiple clamping components to clamp and position the inner walls of the flange and bellows, thereby accommodating expansion joints of different diameters, and also causing the flange and bellows to be coaxially arranged, facilitating subsequent welding; then the turntable is rotated, and the turntable drives multiple clamping components to rotate, thereby driving the flange and bellows to rotate, thus enabling convenient welding between the flange and bellows through the welding head.

Description

Technical Field

[0001] This utility model relates to the field of metal expansion joint processing technology, specifically to a metal expansion joint welding processing device. Background Technology

[0002] Expansion joints, also commonly called compensators or expansion joints, consist of a bellows (an elastic element) that forms the main working part, along with accessories such as end pipes, supports, and conduits. Expansion joints are used to compensate for additional stress caused by temperature differences and mechanical vibrations. During the manufacturing process of expansion joints, welding equipment is required to weld the central bellows to the end flanges.

[0003] For example, patent CN219852915U discloses an expansion joint welding processing device. This patent installs an expansion joint limiting mold inside the top of a limiting slider. After installation, the expansion joint material is placed inside the expansion joint limiting mold. When movement is required during the welding process, an electric telescopic rod is activated to push the piston rod, connecting plate, and limiting slider along the moving groove on the limiting slide. The expansion joint is welded during the movement. This structure is relatively simple and can be used for moving welding.

[0004] However, the expansion joint limiting mold can only limit expansion joints of a single size. When positioning expansion joints of different sizes, multiple limiting molds are required, which increases the overall cost. Utility Model Content

[0005] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by this utility model is that the expansion joint limiting mold can only limit expansion joints of a single size. When positioning expansion joints of different sizes, multiple limiting molds are required, which increases the overall cost.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a metal expansion joint welding processing device, comprising:

[0007] A clamping mechanism includes: a base, a turntable, clamping members, and a drive assembly; the turntable is rotatably mounted on the base; the clamping members are slidably mounted on one end of the turntable along its radial direction; and multiple clamping members are evenly spaced along the circumferential direction of the turntable; the drive assembly simultaneously drives multiple clamping members to slide; and

[0008] The guide rail has two opposing clamping mechanisms, and the two bases are slidably mounted on the guide rail.

[0009] Preferably, the clamping member is arranged in an arc shape on the side away from the turntable axis.

[0010] Preferably, the drive assembly includes: a threaded rod, a nut seat, and a connecting rod; the threaded rod is coaxially and rotatably mounted on the turntable; the nut seat is threadedly connected to the threaded rod; the connecting rod corresponds one-to-one with the clamping member, and one end of the connecting rod is hinged to the clamping member, and the other end of the connecting rod is hinged to the nut seat.

[0011] Preferably, it further includes a telescopic component and a limiting component; the telescopic component is disposed between the two threaded rods; one end of the telescopic component is coaxially fixed to one end of one of the threaded rods, and the other end of the telescopic component is fixedly installed with a limiting component; the limiting component is polygonal, and one end of the other threaded rod has a limiting groove that cooperates with the limiting component.

[0012] Preferably, it further includes a rotating plate and a rocker arm; the rocker arm and the threaded rod are parallel to each other and offset from each other; one end of the rotating plate is vertically fixed to one of the threaded rods, and the rocker arm is installed at the other end of the rotating plate.

[0013] Preferably, the crank handle is slidably inserted into the rotating plate along its axial direction; the rotating plate slidably abuts against one of the turntables; a plurality of insertion holes are provided on one end of the turntable near the rotating plate, which are engaged with the crank handle, and the plurality of insertion holes are evenly spaced along the circumferential direction of the turntable, and the insertion holes are located on the stroke of the crank handle.

[0014] Preferably, it further includes an adjusting plate and a bolt; each of the clamping members is provided with an adjusting plate on the side away from the turntable axis; the adjusting plate slides against one end of the turntable; the bolt is provided along the sliding direction of the clamping member, and one end of the bolt passes through the clamping member and is threadedly connected to the clamping member, and one end of the bolt is rotatably connected to the adjusting plate.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] 1. In this utility model, the expansion joint is placed between two clamping mechanisms, and then the base is slidable so that multiple clamping parts on the base are inserted into the ends of the flange and the bellows to accommodate expansion joints of different lengths. Then, the drive assembly is controlled to move, causing multiple clamping parts to slide the same distance, so that multiple clamping parts simultaneously abut against the inner walls of the flange and the bellows. This achieves clamping and positioning of the inner walls of the flange and the bellows, thus accommodating expansion joints of different diameters and also causing the flange and the bellows to be coaxially arranged, which facilitates subsequent welding. Then, the turntable is rotated, and the turntable drives multiple clamping parts to rotate, thereby driving the flange and the bellows to rotate. This allows for convenient welding between the flange and the bellows through the welding head.

[0017] 2. In this utility model, rotating the threaded rod causes the nut seat to move along the length of the threaded rod, thereby causing the connecting rod to rotate and move. In turn, the connecting rod pushes the corresponding clamping parts to move, thus enabling synchronous control of multiple clamping parts, so that the sliding distance of multiple clamping parts is the same.

[0018] 3. In this utility model, after the clamping member clamps and fixes the expansion joint, the telescopic member is controlled to move, and the telescopic member drives the limiting member to slide into the limiting groove; so that when one threaded rod is rotated, the other threaded rod can also rotate synchronously, reducing manual operation steps and thus reducing the clamping time of the expansion joint.

[0019] 4. In this invention, rotating the crank handle causes the threaded rod to rotate via the rotating plate, thereby adjusting the clamping component. After the clamping component has secured the expansion joint, the crank handle can be slid to the nearest insertion hole, thus limiting the threaded rod and further preventing it from rotating on the turntable. Specifically, the number of insertion holes is set according to the specific situation; one insertion hole corresponds to one inner diameter of the expansion joint, ensuring that after rotating the threaded rod, the expansion joint can be clamped and the crank handle can be inserted into the insertion hole.

[0020] 5. In this utility model, the distance between the adjusting plate and the clamping component can be adjusted by rotating the threaded rod; so that when the inner diameters of the flange and the bellows are different, the inner diameters of the flange and the bellows can be adapted by adjusting the distance between the adjusting plate and the clamping component, thus ensuring that both the flange and the bellows can be clamped and fixed. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a perspective view of a metal expansion joint welding processing device provided in this embodiment.

[0023] Figure 2 This is a perspective view of the driving component provided in this embodiment.

[0024] Reference numerals: 1. Base; 2. Turntable; 3. Clamping component; 31. Adjusting plate; 32. Bolt; 4. Drive assembly; 41. Threaded rod; 42. Nut seat; 43. Connecting rod; 44. Telescopic component; 45. Limiting component; 46. Limiting groove; 47. Turning plate; 48. Crank handle; 49. Insertion hole; 5. Guide rail. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] See Figures 1-2 The present invention provides an embodiment of a metal expansion joint welding processing device, comprising: a clamping mechanism and a guide rail 5; the clamping mechanism includes: a base 1, a turntable 2, clamping members 3, and a driving assembly 4; the turntable 2 is rotatably mounted on the base 1; the clamping members 3 are slidably mounted on one end of the turntable 2 along the radial direction of the turntable 2; and multiple clamping members 3 are evenly spaced along the circumferential direction of the turntable 2; furthermore, the side of the clamping member 3 away from the axis of the turntable 2 is arranged in an arc shape; thus, it can more conveniently abut against the inner wall of the flange and the bellows; the driving assembly 4 simultaneously drives multiple clamping members 3 to slide; and the clamping mechanism is arranged in two opposite directions, with two bases 1 slidably mounted on the guide rail 5.

[0027] In practice, the expansion joint is placed between two clamping mechanisms, and then the base 1 is slid so that multiple clamping parts 3 on the base 1 are inserted into the ends of the flange and the bellows to accommodate expansion joints of different lengths. Then, the drive assembly 4 is controlled to move, causing multiple clamping parts 3 to slide the same distance, so that multiple clamping parts 3 simultaneously abut against the inner walls of the flange and the bellows. This clamps and positions the inner walls of the flange and the bellows, thus accommodating expansion joints of different diameters and also causing the flange and the bellows to be coaxially arranged, which facilitates subsequent welding. Then, the turntable 2 is rotated, and the turntable 2 drives multiple clamping parts 3 to rotate, thereby driving the flange and the bellows to rotate. In this way, welding can be easily performed between the flange and the bellows through the welding head.

[0028] See Figures 1-2 In other embodiments, the drive assembly 4 includes: a threaded rod 41, a nut seat 42, and a connecting rod 43; the threaded rod 41 is coaxially and rotatably mounted on the turntable 2; the nut seat 42 is threadedly connected to the threaded rod 41; the connecting rod 43 corresponds one-to-one with the clamping member 3, and one end of the connecting rod 43 is hinged to the clamping member 3, and the other end of the connecting rod 43 is hinged to the nut seat 42. In specific implementation, rotating the threaded rod 41 causes the nut seat 42 to move along the length of the threaded rod 41, thereby causing the connecting rod 43 to rotate and move, and then pushing the corresponding clamping member 3 to move through the connecting rod 43, thereby achieving synchronous control of multiple clamping members 3, so that the sliding distance of multiple clamping members 3 is the same.

[0029] See Figures 1-2In other embodiments, the expansion joint also includes a telescopic member 44 and a limiting member 45. The telescopic member 44 is disposed between two threaded rods 41. One end of the telescopic member 44 is coaxially fixed to one end of one of the threaded rods 41, and the limiting member 45 is fixedly installed on the other end of the telescopic member 44. The limiting member 45 is polygonal, and one end of the other threaded rod 41 is provided with a limiting groove 46 that cooperates with the limiting member 45. In specific implementation, the telescopic member 44 can be a structure that can extend and adjust its length, such as a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. After the clamping member 3 clamps and fixes the expansion joint, the telescopic member 44 is controlled to move, and the telescopic member 44 drives the limiting member 45 to slide into the limiting groove 46. This allows the other threaded rod 41 to rotate synchronously when one of the threaded rods 41 is rotated, reducing manual operation steps and thus reducing the clamping time of the expansion joint.

[0030] See Figures 1-2 In other embodiments, a rotating plate 47 and a crank 48 are also included; the crank 48 is parallel to and offset from the threaded rod 41; one end of the rotating plate 47 is vertically fixed to one of the threaded rods 41, and the crank 48 is installed at the other end of the rotating plate 47. In specific implementation, rotating the crank 48 causes the rotating plate 47 to rotate, and the rotating plate 47 causes the threaded rod 41 to rotate, thus making it easier to rotate the threaded rod 41.

[0031] See Figures 1-2 In other embodiments, the crank handle 48 is slidably inserted into the rotating plate 47 along its axial direction; the rotating plate 47 slidably abuts against one of the turntables 2; the turntable 2 has multiple insertion holes 49 near the rotating plate 47, which are evenly spaced along the circumferential direction of the turntable 2 and located on the stroke of the crank handle 48. In specific implementation, rotating the crank handle 48 can drive the threaded rod 41 to rotate through the rotating plate 47, thereby adjusting the clamping member 3; after the clamping member 3 has clamped and fixed the expansion joint, the crank handle 48 can be slid so that the crank handle 48 slides into the nearest insertion hole 49, thereby limiting the threaded rod 41 and further preventing the threaded rod 41 from rotating on the turntable 2. Specifically, the number of insertion holes 49 is set according to the specific situation; one insertion hole 49 corresponds to one inner diameter of the expansion joint, so as to ensure that after rotating the threaded rod 41, the expansion joint can be clamped and the crank handle 48 can be inserted into the insertion hole 49.

[0032] See Figures 1-2In another embodiment, an adjusting plate 31 and a bolt 32 are also included. Each clamping member 3 has an adjusting plate 31 on the side away from the axis of the turntable 2. The adjusting plate 31 slides against one end of the turntable 2. The bolt 32 is arranged along the sliding direction of the clamping member 3, and one end of the bolt 32 passes through the clamping member 3 and is threadedly connected to it. One end of the bolt 32 is rotatably connected to the adjusting plate 31. In specific implementation, rotating the bolt 32 adjusts the distance between the adjusting plate 31 and the clamping member 3. This allows the flange and bellows to be fitted with the appropriate diameters by adjusting the distance between the adjusting plate 31 and the clamping member 3 when the inner diameters of the flange and bellows are different, ensuring that both the flange and bellows can be clamped and fixed.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A metal expansion joint welding processing device characterized by, include: The clamping mechanism includes: a base, a turntable, clamping components, and a drive assembly; the turntable is rotatably mounted on the base; The clamping members are slidably mounted on one end of the turntable along the radial direction of the turntable; and multiple clamping members are evenly spaced along the circumferential direction of the turntable; the driving assembly simultaneously drives multiple clamping members to slide; and The guide rail has two opposing clamping mechanisms, and the two bases are slidably mounted on the guide rail.

2. The metal expansion joint welding device of claim 1, wherein, The clamping member is arranged in an arc shape on the side away from the turntable axis.

3. The metal expansion joint welding apparatus of claim 1, wherein, The drive assembly includes a threaded rod, a nut seat, and a connecting rod; the threaded rod is coaxially and rotatably mounted on the turntable; the nut seat is threadedly connected to the threaded rod; the connecting rod corresponds one-to-one with the clamping member, and one end of the connecting rod is hinged to the clamping member, and the other end of the connecting rod is hinged to the nut seat.

4. The metal expansion joint welding processing device according to claim 3, characterized in that, It also includes a telescopic component and a limiting component; the telescopic component is disposed between the two threaded rods; one end of the telescopic component is coaxially fixed to one end of one of the threaded rods, and the other end of the telescopic component is fixedly installed with a limiting component; the limiting component is polygonal, and one end of the other threaded rod has a limiting groove that cooperates with the limiting component.

5. The metal expansion joint welding processing device according to claim 4, characterized in that, It also includes a rotating plate and a rocker arm; the rocker arm and the threaded rod are parallel to each other and offset from each other; one end of the rotating plate is vertically fixed to one of the threaded rods, and the rocker arm is installed at the other end of the rotating plate.

6. The metal expansion joint welding processing device according to claim 5, characterized in that, The crank handle is slidably inserted into the rotating plate along its axial direction; the rotating plate slidably abuts against one of the turntables; a plurality of insertion holes are provided on one end of the turntable near the rotating plate, which are engaged with the crank handle, and the plurality of insertion holes are evenly spaced along the circumferential direction of the turntable, and the insertion holes are located on the stroke of the crank handle.

7. The metal expansion joint welding processing device according to claim 1, characterized in that, It also includes an adjusting plate and bolts; each of the clamping members is provided with an adjusting plate on the side away from the turntable axis; the adjusting plate slides against one end of the turntable; the bolt is provided along the sliding direction of the clamping member, and one end of the bolt passes through the clamping member and is threadedly connected to the clamping member, and one end of the bolt is rotatably connected to the adjusting plate.

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