A continuous cylindrical shell welding bracket

Abstract

The present invention relates to a continuous cylindrical shell welding bracket, which comprises a linear guide assembly, which is composed of a driving guide rail, a front end adjustment block, a rear end traction block and a linear drive mechanism, so as to realize the reciprocating movement of the traction block in the guide rail; the linear limit assembly is composed of a transverse limit groove and a guide plate, and a guide connecting piece is arranged in the guide plate; the spring support assembly comprises a spring body, a coolant flow cavity, an auxiliary clamping block and a heat conduction contact plate; the heat conduction cavity is connected with the coolant flow cavity, and is circulated and cooled by a heat exchanger component; the front end adjustment block, the rear end traction block and the guide connecting piece are respectively connected with the spring body; the heat conduction connection box is arranged on the spring body, contains a heat conduction cavity, and has a heat conduction bottom plate on the side wall for heat conduction contact with the workpiece.

Description

Technical Field

[0001] The invention relates to a continuous columnar shell welding bracket and belongs to the field of welding devices. Background Art

[0002] When welding large-diameter and long-length pipelines, the entire welding process lasts a long time, and the pipeline is more likely to accumulate heat. After the heat accumulates, the pipeline wall is prone to thermal stress deformation or accumulation of certain thermal stress. The deformation and accumulated thermal stress can easily affect the roundness of the pipeline welding position, and it is easy to crack during later use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to design a heat dissipation system which is attached to the pipeline and is easy to uniformly contact and separate from the pipeline, so as to preheat or cool the pipeline in real time during the welding process, thereby reducing the possibility of deformation of the pipeline due to uneven thermal stress.

[0004] The cooling mechanism support frame based on the large spring structure can quickly and evenly contact the pipe surface during the stretching process, and can replace the flow pipe of the coolant with high integrity.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A continuous cylindrical shell welding bracket, comprising:

[0007] The linear guide assembly includes a driving guide rail, a front end adjustment block is fixed to one end of the driving guide rail, a rear end traction block is slidably connected to the rear end of the driving guide rail, and the rear end traction block moves back and forth in the driving guide rail through a linear drive mechanism;

[0008] The linear limit assembly includes a transverse limit groove, in which a guide plate is slidably connected and can move along the transverse limit groove in a plane, and in which a plurality of guide connecting members are slidably connected through a longitudinal sliding groove mechanism;

[0009] The spring support assembly includes a spiral spring body, a coolant flow cavity is coaxially arranged in the spring body; a plurality of auxiliary clamping blocks are arranged in an array on the spring body, the auxiliary clamping blocks are arranged toward the inner side of the spiral of the spring body, a heat-conducting bottom plate for contacting the pipeline surface is arranged on the surface of the auxiliary clamping block, a heat-conducting cavity is arranged in the auxiliary clamping block, and the heat-conducting cavity is communicated with the coolant flow cavity;

[0010] The heat transfer cavity is connected to the cooling liquid flow cavity in the spring body, the cooling liquid flow cavity is filled with heat transfer liquid, the two ends of the spring body are connected to the heat exchanger assembly through a connector, and the heat transfer liquid circulates through the heat exchanger assembly for heat exchange;

[0011] Among them, a first connecting ring is rotatably connected to the front end adjustment block, and the inner ring of the first connecting ring is fixedly connected to the front end of the spring body; a second connecting ring is rotatably connected to the rear end traction block, and the inner ring of the second connecting ring is fixedly connected to the rear end of the spring body; a third connecting ring is rotatably connected to the guide connecting piece, and the inner ring of the third connecting ring is fixedly connected to the middle part of the spring body.

[0012] As a further improvement of the present invention, the auxiliary clamping block includes a heat-conducting connection box, a heat-conducting cavity is arranged inside the heat-conducting connection box, and a heat-conducting base plate for heat-conducting contact with the workpiece is arranged on the bottom surface of the heat-conducting connection box, and the heat-conducting base plate is in contact with the coolant in the heat-conducting cavity.

[0013] As a further improvement of the present invention, the spring body includes a plurality of arc-shaped spring tubes, two adjacent spring tubes are fixedly connected by a heat-conducting connection box, and connection openings communicating with the coolant flow chamber of the spring tube are arranged on both sides of the heat-conducting connection box;

[0014] The spring tube is designed with a split structure for the spring body, so that each spring tube can bend and change direction independently. Compared with the overall manufacturing cost, it is lower and easier to replace and maintain. It can also reduce the technical problem of stress concentration in large-span elastic parts.

[0015] As a further improvement of the present invention, a connecting flange is provided at the end of the spring tube, and the heat-conducting connecting box is connected to the spring tube via the connecting flange;

[0016] Compared with welding, the flange structure is stronger and less prone to tearing.

[0017] As a further improvement of the present invention, an end connector is slidably connected to each of the two ends of the guide plate, an end connector box is fixed to the end connector, a spring pipe at the end of the spring body is connected to the end connector box, the interior of the end connector box is connected to the coolant flow chamber, and a connecting valve for connecting the heat exchange tube is provided on the end connector box;

[0018] The end connection box allows the spring body to be transferred and buffered with the heat exchange liquid pipeline. The end connection box is arranged at the top, which is also conducive to exhausting air in the pipeline. Compared with setting a connection mechanism at the end of the spring pipe fitting, the cost is also lower.

[0019] As a further improvement of the present invention, an adjusting screw sleeve is arranged in the front end adjusting block, an adjusting screw rod is rotatably connected to the front end of the driving guide rail, and the adjusting screw rod is cooperatively connected to the adjusting screw sleeve.

[0020] As a further improvement of the present invention, the linear drive mechanism includes a drive motor, a drive screw is coaxially fixed on the motor shaft of the drive motor, a traction screw sleeve is fixed in the rear end traction block, and the traction screw sleeve is cooperatively connected with the drive screw.

[0021] As a further improvement of the present invention, the heat-conducting connection box is composed of a heat-dissipating shell with an opening at the bottom and a heat-conducting bottom plate sealed and fixed to the bottom of the heat-dissipating shell, and a plurality of heat-conducting sheets are welded in an array on the heat-conducting bottom plate, wherein the ends of the heat-conducting sheets located at odd positions of the heat-conducting sheet array are in sealed contact with one lateral end of the heat-dissipating cavity, and the ends of the heat-conducting sheets located at even positions of the array are in sealed contact with the other lateral end of the heat-dissipating cavity;

[0022] A zigzag flow guide cavity is formed in the heat dissipation cavity, so that the heat-conducting liquid can fully contact with the heat-conducting sheet in the heat dissipation cavity and perform heat exchange.

[0023] As a further improvement of the present invention, an auxiliary heat-conducting contact block is fixedly connected to the spring body between adjacent heat-conducting connection boxes, and an auxiliary heat-conducting plate is arranged at the front end of the auxiliary heat-conducting contact block, and the auxiliary heat-conducting plate is used for heat-conducting contact with the workpiece surface.

[0024] The auxiliary heat-conducting contact block can increase the heat exchange area and support points, and improve the heat dissipation efficiency and support performance of the workpiece.

[0025] The beneficial effects of the present invention are:

[0026] The welding bracket of the present invention has both the functions of fixing and cooling during pipeline welding, can conveniently and quickly evenly attach the cooling mechanism to the periphery of the pipeline, and evenly support the pipeline wall surface, effectively preventing thermal stress deformation occurring during pipeline welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is the connection diagram of spring pipe fittings;

[0030] Figure 3 is a schematic cross-sectional view of a thermally conductive connection box;

[0031] Figure 4 is a longitudinal cross-sectional schematic diagram of a thermally conductive connection box;

[0032] Figure 5 is a cross-sectional schematic diagram of a linear limit assembly;

[0033] Figure 6 It is a schematic diagram of the use of the present invention.

[0034] In the figure: 1. spring body; 2. heat-conducting connecting box; 3. heat-conducting bottom plate; 4. connecting flange; 5. heat-conducting sheet; 6. auxiliary heat-conducting contact block; 7. auxiliary heat-conducting plate; 8. guide connecting piece; 9. rotating sleeve; 10. guide groove; 11. guide plate; 12. guide slider; 13. transverse limit groove; 14. limit groove seat; 15. front end adjustment block; 16. front end connecting piece; 17. adjusting screw sleeve; 18. rear end connecting piece; 19. rear end traction block; 20. driving screw sleeve; 21. driving screw; 22. driving motor; 23. driving guide rail; 24. motor seat; 25. adjusting screw; 26. front end connecting box; 27. rear end connecting box. DETAILED DESCRIPTION

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0036] like Figure 1 The structure is mainly composed of a driving guide rail 23 at the bottom, a limiting groove seat 14 suspended above the driving guide rail 23, and a spring body 1 located between the driving guide rail 23 and the limiting groove seat 14;

[0037] like Figure 1 ,like Figure 2 ,like Figure 4 The spring body 1 is mainly composed of a plurality of arc-shaped spring tubes and a plurality of heat-conducting connection boxes 2 with heat dissipation cavities fixedly assembled by connecting flanges 4. The spring tubes have a cavity structure inside and are interconnected with the heat dissipation cavities; Figure 3 and Figure 4 The heat-conducting connection box 2 is composed of a heat-dissipating shell with an opening at the bottom and a heat-conducting base plate 3 fixed to the bottom in a sealed combination. A plurality of heat-conducting sheets 5 are welded in an array on the heat-conducting base plate 3, wherein the end of the first heat-conducting sheet 5 contacts one lateral end of the heat-dissipating cavity, the end of the second heat-conducting sheet 5 contacts the other lateral end of the heat-dissipating cavity, and so on, thereby forming a zigzag flow guide cavity in the heat-dissipating cavity, so that the heat-conducting liquid can fully contact the heat-conducting sheets 5 in the heat-dissipating cavity and exchange heat; the heat-conducting base plate realizes heat exchange with the workpiece by contacting the surface of the workpiece and under the heat exchange between the heat-conducting sheet 5 and the coolant.

[0038] like Figure 2An auxiliary heat-conducting contact block 6 is fixed in the middle of the spring tube fitting, an auxiliary heat-conducting plate 7 is arranged at the front end of the auxiliary heat-conducting contact block 6, a clamping block is fixed to the end of the auxiliary heat-conducting contact block 6 by bolts, a fixing hole for fixing the spring tube fitting is arranged between the clamping block and the auxiliary heat-conducting contact block 6, and the clamping block clamps the auxiliary heat-conducting contact block 6 to the wall surface of the spring tube fitting by bolts; the auxiliary heat-conducting contact block 6 can assist in heat conduction and assist in supporting and fixing the pipeline.

[0039] like Figure 6 When in use, the pipeline passes through the spring body 1, and the heat-conducting bottom plate 3 and the auxiliary heat-conducting plate 7 are pressed against the pipeline wall under the extrusion of the spring body 1, and the heat dissipation of the pipeline is achieved through the heat dissipation liquid in the spring body 1.

[0040] like Figure 1 The end connection box includes a front-end connector and a rear-end connector, wherein the front-end connector is fixed on the front end of the spring body 1, and the rear-end connector is fixed on the rear end of the spring body 1. The front-end connector of the spring body 1 is connected to a liquid inlet pipe, and the rear-end connector of the spring body 1 is connected to a liquid discharge pipe. The liquid inlet pipe and the liquid discharge pipe are connected to the heat exchange device. The low-temperature liquid is injected from the front end of the spring body 1 through the heat exchange device, and is discharged from the rear-end connector after passing through each heat dissipation cavity and exchanging heat with the heat dissipation cavity.

[0041] like Figure 1 Among them, a front end adjustment block 15 is slidably connected to one end of the driving guide rail 23, and an adjusting screw 25 is rotatably connected to the front end of the driving guide rail 23. An adjusting screw sleeve 17 is fixed in the front end adjustment block 15, and the adjusting screw sleeve 17 cooperates with the adjusting screw 25. The movement of the front end adjustment block 15 can be achieved by rotating the adjusting screw 25. A front end connecting piece 16 is fixed on the top of the front end adjustment block 15, and a front end connecting hole is provided in the middle of the front end connecting piece 16. The first connecting ring is rotatably connected in the front end connecting hole, and the front end of the spring body 1 passes through and is fixed to the first connecting ring to achieve the fixation of the front end of the spring body 1. The spring pipe fitting is pre-tightened by adjusting the position of the front end adjustment block 15.

[0042] like Figure 1A rear end traction block 19 is slidably connected to the rear end of the driving guide rail 23, and a driving motor 22 is connected to the end of the driving guide rail 23 through a motor seat 24. A driving screw 21 is coaxially fixed on the motor shaft of the driving motor 22, and a driving screw sleeve 20 is fixed in the rear end traction block 19. The adjusting screw 25 cooperates with the driving screw sleeve 20 sleeve, and the movement of the rear end traction block 19 is realized by the spiral of the driving screw 21. A rear end connector 18 is fixed on the top of the rear end traction block 19, and a rear end connecting hole is provided in the middle of the rear end connector 18. A second connecting ring is rotatably connected in the rear end connecting hole. The front end of the spring body 1 passes through and is fixed to the second connecting ring to realize the fixation of the rear end of the spring body 1. When the rear end traction block 19 moves, the entire spring body 1 will be elastically stretched. When the spring body 1 is elastically stretched, the entire diameter will become smaller. When the diameter of the spring body 1 becomes smaller, the heat conductive bottom plate 3 and the auxiliary heat conductive plate 7 attached to the spring body 1 will be pressed against the surface of the pipeline to be welded, so as to realize the fixation and heat dissipation of the pipeline.

[0043] like Figure 1 and Figure 5 A transverse limiting groove 13 is provided in the limiting groove seat 14 at the top, and the transverse limiting groove 13 extends along the longitudinal axis. A guide plate 11 is slidably contacted in the transverse limiting groove 13. Figure 2 The guide plate 11 is composed of two parts, a left part and a right part, a guide groove 10 is arranged between the guide plates 11, and a plurality of guide sliders 12 are arranged in an array in the guide plate 11. Two groups of transverse sliding grooves are symmetrically arranged on the inner wall of the wire groove of the guide plate 11, and transverse protrusions embedded in the transverse sliding grooves are symmetrically arranged on the guide slider 12. The guide slider 12 slides transversely through the cooperation between the transverse sliding groove and the transverse protrusion, and the guide connector 8 is fixed below the guide slider 12; end connectors are also slidably connected at both ends of the guide plate 11 through the transverse sliding groove, and the end connectors at both ends are respectively connected to the front end connectors The connecting box 26 is connected to the rear end connecting box 27, and the end of the guide connecting piece 8 located in the middle of the array is rotatably connected with a rotating sleeve 9. The spring tube passes through the rotating sleeve 9 and is fixed to the inner wall of the rotating sleeve 9. The spring tube can slide relative to the guide connecting piece 8 through the rotating sleeve 9; a third connecting ring is rotatably connected inside the guide connecting piece 8, and the middle part of the spring body is fixed to the third connecting ring. The guide connecting piece 8 can prevent the circumferential torsion of the spring body 1 during the stretching process, thereby ensuring that the heat dissipation shells on the spring body 1 will not slide on the surface of the pipeline during the stretching process.

[0044] When using, Figure 6When in use, two sets of this mechanism are used to fix two groups of pipe workpieces to be welded. First, the pipes are inserted into the spring bodies of the two sets of mechanisms through the brackets, and then the rear end traction blocks 19 are moved by the driving motors 22 on both sides, thereby stretching the spring body to tighten the workpieces, and then the welding mechanism is arranged between the pipe workpieces through the welding bracket to weld the pipes.

[0045] Based on the above-mentioned ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above-mentioned description. The technical scope of the present invention is not limited to the contents of the specification.

Claims

1. A continuous cylindrical shell welding bracket; characterized in that: include: A linear guide assembly, the linear guide assembly comprising a driving guide rail (23), a front end adjustment block (15) being fixed to one end of the driving guide rail (23), a rear end traction block (19) being slidably connected to the rear end of the driving guide rail (23), and the rear end traction block (19) being reciprocated in the driving guide rail (23) via a linear drive mechanism; A linear limit assembly, the linear limit assembly comprising a transverse limit groove (13), a guide plate (11) slidably connected in the transverse limit groove (13) and capable of plane movement along the transverse limit groove (13), and a plurality of guide connecting members (8) slidably connected in the guide plate (11) via a longitudinal sliding groove mechanism; A spring support assembly, the spring support assembly comprising a spiral spring body (1), a coolant flow cavity being coaxially arranged in the spring body (1); a plurality of auxiliary clamping blocks being arranged in an array on the spring body (1), the auxiliary clamping blocks being arranged toward the inner side of the spiral of the spring body (1), a heat-conducting bottom plate (3) being arranged on the surface of the auxiliary clamping blocks for contacting the surface of a pipeline, a heat-conducting cavity being arranged in the auxiliary clamping blocks, and the heat-conducting cavity being in communication with the coolant flow cavity; The heat transfer cavity is connected to the cooling liquid flow cavity in the spring body (1), the cooling liquid flow cavity is filled with heat transfer liquid, the two ends of the spring body (1) are connected to the heat exchanger assembly via a connector, and the heat transfer liquid circulates through the heat exchanger assembly for heat exchange; A first connecting ring is rotatably connected to the front end adjustment block (15), and the inner ring of the first connecting ring is fixedly connected to the front end of the spring body (1). A second connecting ring is rotatably connected to the rear end traction block (19), and the inner ring of the second connecting ring is fixedly connected to the rear end of the spring body (1). A third connecting ring is rotatably connected to the guide connecting member (8), and the inner ring of the third connecting ring is fixedly connected to the middle part of the spring body (1).

2. A continuous cylindrical shell welding bracket as claimed in claim 1, characterized in that: The auxiliary clamping block comprises a heat-conducting connection box (2), a heat-conducting cavity is arranged inside the heat-conducting connection box (2), a heat-conducting bottom plate (3) for heat-conducting contact with the workpiece is arranged on the bottom surface of the heat-conducting connection box (2), and the heat-conducting bottom plate (3) is in contact with the cooling liquid in the heat-conducting cavity.

3. A continuous cylindrical shell welding bracket as claimed in claim 1, characterized in that: The spring body (1) comprises a plurality of arc-shaped spring tubes, and two adjacent spring tubes are fixedly connected via a heat-conducting connection box (2). Connection openings communicating with the coolant flow chamber of the spring tubes are arranged on both sides of the heat-conducting connection box (2).

4. A continuous cylindrical shell welding bracket as claimed in claim 3, characterized in that: A connecting flange (4) is provided at the end of the spring tube, and the heat-conducting connecting box (2) is connected to the spring tube via the connecting flange (4).

5. The continuous cylindrical shell welding bracket according to claim 1, characterized in that: An end connection piece is slidably connected to each of the two ends of the guide plate (11), an end connection box is fixed on the end connection piece, a spring pipe piece located at the end of the spring body (1) is connected to the end connection box, the interior of the end connection box is connected to the coolant flow chamber, and a connection valve for connecting a heat exchange pipe is arranged on the end connection box.

6. A continuous cylindrical shell welding bracket as claimed in claim 1, characterized in that: An adjusting screw sleeve (17) is arranged in the front end adjusting block (15), and an adjusting screw rod (25) is rotatably connected to the front end of the driving guide rail (23), and the adjusting screw rod (25) is cooperatively connected to the adjusting screw sleeve (17).

7. The continuous cylindrical shell welding bracket according to claim 1, characterized in that: The linear drive mechanism comprises a drive motor (22), a drive screw (21) is coaxially fixed on the motor shaft of the drive motor (22), a traction screw sleeve is fixed in the rear end traction block (19), and the traction screw sleeve is cooperatively connected with the drive screw (21).

8. The continuous cylindrical shell welding bracket according to claim 1, characterized in that: The heat-conducting connection box (2) is composed of a heat-dissipating shell with an opening at the bottom and a heat-conducting base plate (3) sealed and fixed to the bottom of the heat-dissipating shell. A plurality of heat-conducting sheets (5) are welded in an array on the heat-conducting base plate (3), wherein the ends of the heat-conducting sheets (5) located at odd positions in the array of the heat-conducting sheets (5) are in sealed contact with one lateral end of the heat-dissipating cavity, and the ends of the heat-conducting sheets (5) located at even positions in the array are in sealed contact with the other lateral end of the heat-dissipating cavity.

9. The continuous cylindrical shell welding bracket according to claim 1, characterized in that: An auxiliary heat-conducting contact block (6) is fixedly connected to the spring body (1) between adjacent heat-conducting connection boxes (2), and an auxiliary heat-conducting plate (7) is arranged at the front end of the auxiliary heat-conducting contact block (6). The auxiliary heat-conducting plate (7) is used for heat-conducting contact with the surface of the workpiece.

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