Expansion joint machining device

Abstract

The utility model relates to an expansion joint processing device which comprises a working base and a movable pedestal arranged on the working base in a sliding mode, the movable pedestal is provided with a pair of double-end supporting rods in a sliding mode, the distance between the double-end supporting rods can be adjusted, and each double-end supporting rod is fixedly provided with an upper limiting roller and a lower limiting roller. The upper limiting roller and the lower limiting roller are used for horizontally fixing the expansion joint; the movable pedestal is further provided with a supporting assembly used for vertically supporting the expansion joint. According to the expansion joint fixing device, expansion joints with different diameters can be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joint processing, in particular to an expansion joint processing device. Background Art

[0002] An expansion joint, also known as an expansion joint or flexible joint, is a device used to absorb axial, lateral or angular displacement in a piping system. Expansion joints are usually made of metal and they are able to cope with deformation caused by temperature changes, vibrations or stress during pipe installation. Expansion joints need to be welded before use.

[0003] A Chinese patent with patent number CN219852915U discloses an expansion joint welding processing device, including an operating table, a limiting slide is installed on the left side of the middle of the top of the operating table, a movable slide groove is opened in the middle of the limiting slide, a limiting slider is inserted into the movable slide groove, and an expansion joint limiting mold is installed on the top of the limiting slider. The device can perform mobile welding on the expansion joint during use.

[0004] However, different expansion joints have different diameters, and the prior art is not convenient for installing and fixing expansion joints of different sizes, resulting in a smaller application range of the device. Utility Model Content

[0005] Based on the above description, the utility model provides an expansion joint processing device to solve the problem that the expansion joint processing device is inconvenient to fix expansion joints of different diameters.

[0006] The utility model solves the above technical problems with the following technical solutions: an expansion joint processing device comprises a working base and a movable platform slidably arranged on the working base, a pair of double-headed support rods with adjustable spacing are slidably arranged on the movable platform, an upper limit roller and a lower limit roller are fixed on each of the double-headed support rods, and the upper limit roller and the lower limit roller are used to horizontally fix the expansion joint;

[0007] The movable pedestal is also provided with a support assembly for vertically supporting the expansion joint, and the height of the support assembly is adjustable.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, arc-shaped support plates are fixed to the side walls of both sides of the double-headed support rod, the upper limit roller and the lower limit roller are respectively fixed at the two ends of the arc-shaped support plates, and the two ends of the upper limit roller and the two ends of the lower limit roller are rotatably connected to the two arc-shaped support plates at the same time.

[0010] Furthermore, a limiting slide groove is provided on the movable base, and a rotatable bidirectional lead screw is arranged in the limiting slide groove. The bidirectional lead screw is threadedly connected to the two double-headed support rods at the same time, and rotating the bidirectional lead screw can drive the two double-headed support rods to move toward or away from each other.

[0011] Furthermore, the support assembly includes a bearing block and one or more rotating rods rotatably mounted on the bearing block, and a first electric telescopic rod is arranged below the bearing block.

[0012] Furthermore, both side walls of the arc-shaped support plate are also provided with a limit fixing assembly, and the limit fixing assembly includes a side fixing plate fixed on the arc-shaped support plate, and a threaded column passes through the internal thread of the side fixing plate. The threaded column is rotated toward the end of the other arc-shaped support plate and is provided with a baffle for limiting the expansion joint.

[0013] Furthermore, the limiting and fixing assembly also includes a limiting sliding post, one end of which is fixed to the baffle plate, and the other end of which passes through the side fixing plate, and the limiting sliding post is rotatably arranged with the side fixing plate.

[0014] Furthermore, one end of the double-headed support rod located in the limiting slide groove is T-shaped, and a portion of the upper wall of the double-headed support rod is in contact with the side wall of the limiting slide groove.

[0015] Furthermore, one or more T-shaped slide grooves are provided on the working base, and a corresponding number of T-shaped sliding blocks are provided under the movable base, and the T-shaped sliding blocks are correspondingly slidably installed in the T-shaped slide grooves.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The present application provides a pair of double-headed support rods with adjustable spacing, and the double-headed support rods are provided with upper limit rollers and lower limit rollers, and the expansion joint is fixed by the upper limit rollers and the lower limit rollers, and the vertical support of the expansion joint is achieved through the support assembly, so that the expansion joints of different diameters can be fixed, which effectively improves the application scope of the device;

[0018] 2. One end of the double-headed support rod is T-shaped, which can improve the connection stability between the double-headed support rod and the mobile base;

[0019] 3. The expansion joint processing device can drive the entire expansion joint to rotate by arranging a second servo motor to drive the lower limit roller to rotate, thereby providing convenience for welding the expansion joint during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of an expansion joint processing device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the mobile platform of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the double-headed support rod of the utility model;

[0023] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Working base; 2. Moving platform; 3. Limiting slide; 4. Support assembly; 5. Double-headed support rod; 6. Bidirectional lead screw; 7. First servo motor; 8. Arc support plate; 9. Upper limit roller; 10. Lower limit roller; 11. First electric telescopic rod; 12. Carrying block; 13. Rotating rod; 14. T-shaped slide; 15. T-shaped slider; 16. Limiting fixing assembly; 17. Side fixing plate; 18. Baffle; 19. Threaded column; 20. Knob; 21. Limiting slide; 22. Second servo motor; 23. Second servo motor. DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0028] See also Figures 1 to 4 The utility model provides an expansion joint processing device, including a working base 1, a movable platform 2 is slidably connected to the surface of the working base 1, and a limiting slide groove 3 is arranged on the surface of the movable platform 2; a support assembly 4 located on both sides of the limiting slide groove 3 is fixed on the surface of the movable platform 2, and two double-headed support rods 5 are provided for sliding inside the limiting slide groove 3. Specifically, a bidirectional lead screw 6 is rotatably provided inside the limiting slide groove 3, and the bidirectional lead screw 6 is threadedly connected to the part of the double-headed support rod 5 located in the limiting slide groove 3; a first servo motor 7 is fixedly connected to the end of the movable platform 2, and the first servo motor 7 is used to drive the bidirectional lead screw 6 to rotate.

[0029] Both sides of the double-headed support rod 5 are fixedly connected with an arc-shaped support plate 8, and an upper limit roller 9 and a lower limit roller 10 are rotatably arranged between the two arc-shaped support plates 8. The operation of the first servo motor 7 can drive the bidirectional screw 6 to rotate, and the rotation of the bidirectional screw 6 drives the double-headed support rod 5 to move in the limit slide groove 3, so as to realize the adjustment of the distance between the two double-headed support rods 5, thereby adjusting the distance between the two upper limit rollers 9 and the distance between the two lower limit rollers 10, which provides convenience for the installation and fixation of expansion joints of different diameters and effectively improves the application scope of the device.

[0030] The supporting assembly 4 includes a first electric telescopic rod 11, a bearing block 12 and two rotating rods 13. The first electric telescopic rod 11 is fixedly connected to the surface of the mobile platform 2, the bearing block 12 is fixedly connected to the upper end of the first electric telescopic rod 11, and the rotating rod 13 is rotatably connected to the surface of the bearing block 12. By setting the first electric telescopic rod 11, the bearing block 12 and the two rotating rods 13, the first electric telescopic rod 11 is used for extension and retraction, the height of the bearing block 12 and the rotating rod 13 can be adjusted, and the bottom of the expansion joint can be supported by the two rotating rods 13.

[0031] Two T-shaped grooves 14 are provided on the surface of the working base 1, and two T-shaped sliders 15 are fixedly connected to the lower surface of the movable platform 2, and the T-shaped sliders 15 are slidably arranged in the T-shaped grooves 14. The T-shaped grooves 14 are used to limit the T-shaped sliders 15, and the movable platform 2 can be limited, so that the movable platform 2 can move smoothly.

[0032] An electric push rod 23 is fixedly connected to the surface of the working base 1, and the telescopic end of the electric push rod 23 is fixedly connected to the movable platform 2. By setting the electric push rod 23 and utilizing the electric push rod 23 for telescoping, it provides convenience for welding the expansion joint during movement.

[0033] The upper and lower ends of the double-headed support rod 5 are both T-shaped. The lower end is set to a T shape to facilitate the limiting slide groove 3 to limit the double-headed support rod 5, and the upper end is set to a T shape to facilitate the installation of the arc support plate 8.

[0034] The side walls on both sides of the arc-shaped support plate 8 are fixedly connected to the limit fixing assembly 16, and the limit fixing assembly 16 includes a side fixing plate 17, a baffle 18, a threaded column 19, a knob 20 and a limit sliding column 21. The side fixing plate 17 is fixedly connected to the surface of the arc-shaped support plate 8, the threaded column 19 passes through the side fixing plate 17 and is threadedly connected to the side fixing plate 17, the knob 20 is fixedly connected to the end of the threaded column 19, the baffle 18 is rotatably connected to the end of the threaded column 19 away from the knob 20, the limit sliding column 21 is fixedly connected to the baffle 18, and the limit sliding column 21 forms a sliding connection with the side fixing plate 17.

[0035] The threaded column 19 can be driven to rotate by rotating the knob 20. The threaded connection between the threaded column 19 and the side fixing plate 17 is utilized, and the baffle 18 is limited by the limiting slide bar. The position of the baffle 18 can be adjusted. The front and rear ends of the expansion joint are blocked and limited by the baffle 18, which can effectively prevent the expansion joint from falling from the front and rear ends, thereby improving the installation firmness of the expansion joint.

[0036] In addition, a second servo motor 22 is fixed to the surface of the arc-shaped support plate 8, and the lower limit roller 10 is fixedly connected to the rotating end of the second servo motor 22. By setting the second servo motor 22 and utilizing the second servo motor 22 to drive the lower limit roller 10 to rotate, the entire expansion joint can be driven to rotate, which provides convenience for welding processing of the expansion joint during rotation.

[0037] When the expansion joint processing device of the present application is used, the expansion joint to be processed is first placed on the support assembly 4, and then the first electric telescopic rod 11 is controlled to be telescopic to adjust the height of the expansion joint. Then the first servo motor 7 is controlled to work, and the bidirectional screw 6 can be driven to rotate by the first servo motor 7. The bidirectional screw 6 is rotated, and the lower end of the double-headed support rod 5 is limited by the limiting slide 3, so that the spacing between the two double-headed support rods 5 can be adjusted, so that the spacing between the two upper limit rollers 9 and the spacing between the two lower limit rollers 10 can be adjusted. The expansion joint is clamped and fixed by the two upper limit rollers 9 and the two lower limit rollers 10, which provides convenience for installing and fixing expansion joints of different diameters. Finally, the knob 20 is rotated to drive the threaded column 19 to rotate, so that the position of the baffle 18 can be adjusted. The front and rear ends of the expansion joint are blocked and limited by the baffle 18, which can effectively prevent the expansion joint from falling from the front and rear ends, improve the installation firmness of the expansion joint, and the expansion joint can be conveniently welded by fixing the expansion joint.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An expansion joint processing device, characterized in that: It comprises a working base (1) and a movable platform (2) slidably arranged on the working base (1); a pair of double-headed support rods (5) with adjustable spacing are slidably arranged on the movable platform (2); an upper limit roller (9) and a lower limit roller (10) are fixed on each of the double-headed support rods (5); the upper limit roller (9) and the lower limit roller (10) are used to horizontally fix the expansion joint; The movable platform (2) is also provided with a support assembly (4) for vertically supporting the expansion joint, and the height of the support assembly (4) is adjustable.

2. An expansion joint processing device according to claim 1, characterized in that: The side walls of the double-headed support rod (5) are fixed with arc-shaped support plates (8), the upper limit roller (9) and the lower limit roller (10) are respectively fixed at the two ends of the arc-shaped support plate (8), and the two ends of the upper limit roller (9) and the two ends of the lower limit roller (10) are rotatably connected to the two arc-shaped support plates (8) at the same time.

3. An expansion joint processing device according to claim 1, characterized in that: The movable platform (2) is provided with a limit slide groove (3), and a rotatable bidirectional lead screw (6) is arranged in the limit slide groove (3). The bidirectional lead screw (6) is threadedly connected to the two double-headed support rods (5) at the same time, and the rotation of the bidirectional lead screw can drive the two double-headed support rods (5) to move towards or away from each other.

4. An expansion joint processing device according to claim 1, characterized in that: The support assembly (4) comprises a bearing block (12) and one or more rotating rods (13) rotatably mounted on the bearing block (12); a first electric telescopic rod (11) is arranged below the bearing block (12).

5. An expansion joint processing device according to claim 2, characterized in that: The side walls on both sides of the arc-shaped support plate (8) are also provided with a limit fixing assembly (16), and the limit fixing assembly (16) includes a side fixing plate (17) fixed on the arc-shaped support plate (8), and a threaded column (19) passes through the internal thread of the side fixing plate (17), and the threaded column (19) is rotated toward the end of the other arc-shaped support plate (8) and is provided with a baffle (18) for limiting the expansion joint.

6. An expansion joint processing device according to claim 5, characterized in that: The limiting and fixing assembly (16) further comprises a limiting sliding column (21), one end of which is fixed to the baffle (18), and the other end of which passes through the side fixing plate (17), and the limiting sliding column (21) is rotatably arranged with the side fixing plate (17).

7. An expansion joint processing device according to claim 3, characterized in that: One end of the double-headed support rod (5) located in the limiting slide groove (3) is T-shaped, and a portion of the upper wall of the double-headed support rod (5) is in contact with the side wall of the limiting slide groove (3).

8. The expansion joint processing device according to claim 1, characterized in that: The working base (1) is provided with one or more T-shaped sliding grooves, and a corresponding number of T-shaped sliding blocks (15) are provided below the movable platform (2), and the T-shaped sliding blocks (15) are correspondingly slidably installed in the T-shaped sliding grooves.

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