A pipeline welding device for municipal construction

Abstract

The present invention relates to the technical field of pipeline welding, and specifically to a pipeline welding device for municipal construction, including a mounting seat for placing a pipeline and a wall thickness detection component, the wall thickness detection component including a movable frame and a movable disk movably mounted on the movable frame; a welding and grinding component, the welding and grinding component including a pressure plate provided with a driving shaft and pressure wheels arranged at both ends of the driving shaft, and also including a movable part rotatably arranged on the driving shaft, the movable part including a grinding part rotatably mounted on the driving shaft, and a welding part elastically mounted on the grinding part, a toggle part and a judgment component arranged on the pressure plate are provided on the driving shaft, the judgment component including a conductive rod, a conductive block and a grinding button, a reset button and a welding button elastically mounted from bottom to top in sequence, and used to start the welding part, the grinding part and the swinging welding part when the grinding part swings to different positions. The present invention can selectively perform butt welding and groove welding on the pipeline according to the wall thickness of the pipeline, and has a wide welding range and is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, and in particular to a pipeline welding device for municipal construction. Background Art

[0002] In municipal construction, pipes play an important role in clearing municipal sewage and road waterlogging. Municipal drainage pipes are generally installed underground. Since pipes of different lengths need to be welded according to needs to cooperate with construction and use, when welding these pipes for municipal construction, the existing technology generally uses welding workers to hold welding guns to weld the welds.

[0003] To this end, the China Patent Network has published a publication number: CN117260090A, named a pipeline welding device for municipal construction, which uses a motor to drive the gear column to rotate, so that the gear column drives the first bevel gear and the second bevel gear to rotate, and uses the rotation of the welding mechanism to drive the push plate to slide, so that the push plate switches the meshing state of the first bevel gear and the second bevel gear with the conical connecting teeth, thereby controlling the welding direction of the welding mechanism, so that the welding mechanism rotates in the opposite direction to weld after welding the outside of the pipeline for one circle, thereby performing surfacing welding on the pipeline, avoiding the power supply line of the welding device and the welding wire being entangled on the outside of the pipeline during the welding process.

[0004] In the above-mentioned public documents, pipelines can be welded continuously to reduce the labor intensity of welding and can effectively prevent the power supply lines and welding wires from being entangled with pipelines. However, its welding form limits the scope of use. Pipes with a thickness of ≤4mm can be welded. When welding pipes with a thickness of >4mm, simple butt welding can no longer meet the welding strength, resulting in insufficient strength after welding and easy to break again. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a pipeline welding device for municipal construction, which can effectively solve the problems in the prior art that only pipelines can be butt-welded, pipelines of different thicknesses cannot be welded, and the welding range is small.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a pipeline welding device for municipal construction, comprising a mounting seat for placing a pipeline, and further comprising:

[0008] A wall thickness detection assembly for fixing a pipeline and measuring the thickness of the pipeline, the wall thickness detection assembly comprising a movable frame arranged on a mounting seat and a movable disk movably mounted on the movable frame for locating the axis of the pipeline;

[0009] A welding and grinding assembly, the welding and grinding assembly includes a pressing plate provided with a driving shaft and pressing wheels provided at both ends of the driving shaft for resisting and driving the pipe to rotate, and also includes a movable part rotatably provided on the driving shaft, the movable part includes a grinding part rotatably installed on the driving shaft, and a welding part is elastically installed on the grinding part, and a toggle part for toggling the welding part to move back and forth is provided on the driving shaft;

[0010] And a judgment component is arranged on the pressure plate, which includes a conductive rod electrically connected to the toggle member, a conductive block, and a grinding button, a reset button and a welding button elastically installed from bottom to top, and is used to start the welding member, the grinding member and the swinging welding member when the grinding member swings to different positions.

[0011] Furthermore, the mounting seat includes a movable extrusion member arranged on the opposite side of the wall thickness detection component, which is used to push the pipeline to make it close to the wall thickness detection component.

[0012] Furthermore, transverse guide pillars and longitudinal guide pillars are slidably installed on the movable frame, and the movable plate is slidably connected to the transverse guide pillars and the longitudinal guide pillars respectively, so that the movable plate can move in any direction on the movable frame. A measuring ruler is provided on the movable frame, and a conical table is rotatably installed on one side of the movable plate close to the pipeline, and a movable bar for moving the measuring ruler is slidably installed on the conical table.

[0013] Furthermore, the conical table is composed of a circular disc and a frustum, and the circular disc and the movable disc are rotatably connected, and the cross section of the frustum is a right-angled isosceles triangle, which is used to convert the pipeline radius size into the moving size of the movable bar to push the measuring ruler.

[0014] Furthermore, the wall thickness detection assembly also includes a receiving plate for receiving signals and measuring height, and a transmitter is provided at the axis of the movable disk for projecting the axis of the pipeline onto the receiving plate.

[0015] Furthermore, the grinding part is rotatably arranged on the driving shaft through a bracket, and a friction plate is provided between the bracket and the driving shaft, which is used to drive the movable part to rotate when the driving shaft rotates, so that the welding part and the grinding part are selectively contacted with the pipeline for welding and grinding. The welding part is slidably arranged on the grinding part, and an elastic part is provided between the welding part and the grinding part. Two groups of symmetrically distributed guide rings are provided on the side of the welding part away from the grinding part, and the guide rings gradually become thicker from one end to the other end.

[0016] Furthermore, the toggle member is slidably arranged on the driving shaft, and a power member is arranged between the side of the toggle member away from the guide ring and the pressure plate, for pushing the toggle member to squeeze the guide ring and cooperate with the elastic member to reciprocate the welding member.

[0017] Furthermore, a fixed plate for pushing the conductive block is provided at the end of the polishing button, a pulling piece for pulling the conductive block is provided at the end of the reset button, and a shift bar is rotatably installed on the pulling piece, a torsion spring is provided between the pulling piece and the shift bar, a conical hole is provided on the end of the conductive block close to the conductive rod, and a frustum-shaped protrusion is provided on the side of the conductive rod close to the conductive block, which is used to drive the conductive block to displace and contact and energize when the conductive rod descends.

[0018] Furthermore, a push block is provided between the welding button and the conductive rod, which is used to push the conductive rod downward after the welding button is squeezed.

[0019] Beneficial Effects

[0020] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] 1. The contact sequence between the welding parts and the grinding parts and the pipeline is driven by the rotation of the driving shaft in different directions, so as to perform butt welding and groove welding on the pipeline. The grinding button, reset button and welding button as well as the cooperation of the conductive rod and the conductive block can automatically control the welding state of the welding parts according to the swing of the grinding parts, and automatically switch between butt welding and groove welding according to the needs, with a wide welding range;

[0022] 2. Through the cooperation of the movable frame, conical table, movable bar, measuring ruler and receiving plate, the thickness of the pipeline can be automatically measured while the pipeline is fixed, and the rotation direction of the drive shaft can be automatically controlled according to the thickness of the pipeline, thereby controlling the order of welding and grinding, and automatically adjusting the butt welding and groove welding, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the wall thickness measurement assembly of the present invention;

[0026] Figure 3 is a cross-sectional view of the conical stage of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the welding and grinding assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the partial structure of the welding and grinding assembly of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the judgment component of the present invention;

[0030] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0031] Figure 8 It is a schematic diagram of the structure of the conductive rod and the conductive block of the present invention;

[0032] Fig. 9 It is a state schematic diagram of the reset button and the conductive block of the present invention.

[0033] 1. Mounting seat; 11. Movable extrusion member; 2. Wall thickness detection assembly; 21. Movable frame; 211. Horizontal guide column; 212. Longitudinal guide column; 213. Measuring ruler; 22. Movable disk; 23. Conical table; 24. Movable bar; 25. Receiving plate; 3. Welding and grinding assembly; 31. Pressing plate; 32. Driving shaft; 33. Pressing wheel; 34. Movable member; 341. Welding member; 342. Grinding member; 343. Elastic member; 344. Guide ring; 345. Toggle member; 35. Judgment assembly; 351. Grinding button; 3511. Fixed plate; 352. Reset button; 3521. Pulling member; 3522. Toggle bar; 353. Welding button; 354. Conductive rod; 355. Conductive block; 3551. Conical hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The present invention will be further described below in conjunction with the embodiments.

[0036] Example:

[0037] A pipe welding device for municipal construction, see attached Figure 1-9 , including a mounting seat 1 for placing a pipe, the mounting seat 1 is provided with a plurality of sets of balls for moving and rolling the pipe, and also including:

[0038] The wall thickness detection component 2 is used to fix the pipeline and measure the thickness of the pipeline. The wall thickness detection component 2 includes a movable frame 21 arranged on the mounting seat 1 and a movable plate 22 movably mounted on the movable frame 21 for positioning the axis of the pipeline, wherein the movable frame 21 is a lifting frame, which is used to make room for the removal of the pipeline after welding is completed. At the same time, the mounting seat 1 also includes a movable extrusion piece 11 arranged on the opposite side of the wall thickness detection component 2, which is used to push the pipeline to make it close to the wall thickness detection component 2, so as to measure the inner diameter of the pipeline.

[0039] Specifically, a transverse guide column 211 and a longitudinal guide column 212 are slidably installed on the movable frame 21, and the transverse guide column 211 and the longitudinal guide column 212 are perpendicular to each other in the same plane, and the movable disk 22 is slidably connected to the transverse guide column 211 and the longitudinal guide column 212 respectively, so that the movable disk 22 can move in any direction on the movable frame 21 to determine the axis of the pipeline. A measuring ruler 213 is provided on the movable frame 21, and a conical table 23 is rotatably installed on the side of the movable disk 22 close to the pipeline, and a movable bar 24 for moving the measuring ruler 213 is slidably installed on the conical table 23. Since the conical table 23 is composed of a disc and a frustum, and the disc and the movable disk 22 are rotatably connected, the conical table 23 is pressed against the pipeline, and the pipeline squeezes the movable bar 24 to push the measuring ruler 213. Because the cross-section of the frustum is a right-angled isosceles triangle, when the pipeline is squeezed to the conical table 23, the size displayed by the measuring ruler 213 is the internal radius of the pipeline, thereby obtaining the inner diameter of the pipeline when the pipeline is fixed.

[0040] Furthermore, the wall thickness detection component 2 also includes a receiving plate 25 for receiving signals and measuring height. A transmitter is provided at the axis of the movable disk 22 for projecting the axis of the pipe onto the receiving plate 25. When the conical platform 23 on the movable disk 22 contacts the pipe, the movable disk 22 is guided to move on the movable frame 21 and determine the axis of the pipe, which is displayed on the receiving plate 25, so as to facilitate the subsequent measurement of the outer diameter of the pipe.

[0041] The welding and grinding assembly 3 is driven by an external driving source to move in the vertical direction so that it squeezes the pipe and fixes the pipe with the mounting seat 1. After fixation, the outer diameter of the pipe is detected with the axis on the receiving plate 25, so as to calculate the wall thickness of the pipe. Then, according to the judgment of the wall thickness of the pipe, the pipe is driven to rotate in different directions to cooperate with welding and grinding. When the wall thickness is less than or equal to 4mm, welding is performed directly. When the wall thickness is greater than 4mm, the pipe is grooved first and then welded. The welding and grinding assembly 3 includes a pressing plate 31 provided with a driving shaft 32 and a pressing plate 31 provided at both ends of the driving shaft 32 for resisting and driving the pipe. The rotating pressing wheel 33 has a friction belt on its outer circumference, which is used to increase the friction between the pressing wheel 33 and the pipe to prevent the pressing wheel 33 and the pipe from rotating relative to each other, thereby achieving the effect of lead welding and grinding. The pressing plate 31 is provided with a driving motor for driving the driving shaft 32 and the pressing wheel 33 to rotate, which is not shown in the figure. When the pressing plate 31 descends, the pressing wheel 33 is pressed against the pipe to achieve fixation. At this time, the receiving plate 25 is used to subtract the ground clearance of the driving shaft 32 from the ground clearance of the pipe axis to obtain the outer diameter of the pipe, and then the outer diameter is subtracted from the inner diameter to obtain the thickness of the pipe, thereby controlling the rotation direction of the driving shaft 32. The welding and grinding assembly 3 also includes a rotating motor set on the driving shaft 32 The movable part 34 includes a grinding part 342 rotatably mounted on the drive shaft 32. The grinding part 342 is rotatably mounted on the drive shaft 32 through a bracket, and a friction plate is provided between the bracket and the drive shaft 32, which is used to drive the movable part 34 to rotate when the drive shaft 32 rotates. A welding part 341 is elastically mounted on the grinding part 342, so that the grinding part 342 and the welding part 341 selectively contact the pipeline. When the pipeline wall thickness does not reach the groove welding, the drive shaft 32 drives the movable part 34 to rotate and makes the welding part 341 contact with the pipeline gap. When the pipeline wall thickness reaches the groove welding, the drive shaft 32 drives the movable part 34 to rotate and makes the grinding part 342 contacts with the gap of the pipeline and is polished. After the polishing is completed, the driving shaft 32 rotates in the opposite direction so that the welding piece 341 contacts with the pipeline for welding. A toggle piece 345 is provided on the driving shaft 32 for toggling the welding piece 341 to move back and forth, wherein a ring guide groove is provided on one side of the toggle piece 345. In addition, a driving cylinder is provided in the pressure plate 31, and the moving end of the driving cylinder extends into the ring guide groove on the toggle piece 345, so that the driving cylinder will not get stuck with the toggle piece 345 while pushing the toggle piece 345 to move, that is, the toggle piece 345 can still rotate with the driving shaft 32 after moving, and the welding piece 341 is toggled back and forth to complete the welding of the groove.

[0042] Among them, the welding part 341 is slidably arranged on the grinding part 342, and an elastic part 343 is arranged between the welding part 341 and the grinding part 342, which is used for resetting the welding part 341 and moving it away from the grinding part 342 when it is not squeezed. Two groups of symmetrically distributed guide rings 344 are arranged on the side of the welding part 341 away from the grinding part 342, and the guide ring 344 gradually becomes thicker from one end to the other end, and extends to the guide ring 344 when the toggle member 345 is pushed. Some of the toggle members 345 close to the guide ring 344 are provided with a toggle rod. When the toggle member 345 moves toward the guide ring 344, the toggle rod cooperates with the guide ring 344, and the guide ring 344 is continuously toggled with the rotation of the toggle member 345, thereby realizing the reciprocating toggle of the welding part 341 and welding the grinded groove.

[0043] In addition, the toggle member 345 is slidably disposed on the driving shaft 32 , and a power member is disposed between the side of the toggle member 345 away from the guide ring 344 and the pressure plate 31 , for pushing the toggle member 345 to squeeze the guide ring 344 and cooperate with the elastic member 343 to reciprocate the welding member 341 .

[0044] And a judgment component 35 is arranged on the pressure plate 31, and the judgment component 35 includes a conductive rod 354 and a conductive block 355 electrically connected to the toggle member 345. When the conductive rod 354 and the conductive block 355 are in contact, the power part of the toggle member 345 is powered, thereby realizing the movement of the toggle member 345. The grinding button 351, the reset button 352 and the welding button 353 are elastically installed from bottom to top, and are used to start the welding member 341, the grinding member 342 and the swing welding member 341 when the grinding member 342 swings to different positions.

[0045] In addition, a fixing plate 3511 for pushing the conductive block 355 is provided at the end of the grinding button 351, which is used to squeeze the grinding button 351 when the grinding member 342 swings, thereby pushing the conductive block 355 to the innermost position. A pulling member 3521 for pulling the conductive block 355 is provided at the end of the reset button 352, and a lever 3522 is rotatably mounted on the pulling member 3521. A torsion spring is provided between the pulling member 3521 and the lever 3522, which is used to pull the conductive block 355 in contact with the conductive rod 354, that is, the conductive block When the conductive block 355 is at the innermost position, the reset button 352 cannot be pulled out after being pressed. A conical hole 3551 is provided on the end of the conductive block 355 close to the conductive rod 354, and a frustum-shaped protrusion is correspondingly provided on the side of the conductive rod 354 close to the conductive block 355, which is used to drive the conductive block 355 to move and contact and energize when the conductive rod 354 descends, so that only after the conductive rod 354 drives the conductive block 355 to move, the lever 3522 of the reset button 352 can move the conductive block 355 after being pressed. Fig. 9 a and b in .

[0046] It is worth noting that a push block is provided between the welding button 353 and the conductive rod 354, which is used to push the conductive rod 354 down after the welding button 353 is squeezed. Before welding begins, the movable member 34 is in the reset position, that is, the grinding member 342 is against the reset button 352. During welding, when the pipe thickness is not reached, that is, the thickness is less than or equal to 4 mm, the driving shaft 32 rotates and makes the welding member 341 contact with the pipe, and at the same time, the grinding member 342 swings and disengages from the welding button 353 and contacts the welding button 353. At this time, the reset button 352 pulls the conductive block 355 to move. Fig. 9 As shown in a in the figure, the conductive rod 354 cannot contact the conductive block 355 when it descends. At this time, the toggle member 345 is stationary, and the welding member 341 realizes butt welding. When the pipe thickness reaches the point where a groove needs to be opened, that is, the thickness is greater than 4 mm, the drive shaft 32 rotates and makes the grinding member 342 contact the pipe. At the same time, the grinding member 342 swings and disengages from the welding button 353 and starts the grinding wheel on the grinding member 342. The pipe is polished, and the grinding button 351 is squeezed to cooperate with the fixing plate 3511 to push the conductive block 355 to the innermost part during the polishing. When the polishing is completed, the drive shaft 32 rotates in the opposite direction to make the welding member 341 contact with the pipe, and the grinding member 342 is lifted. During the lifting process, the grinding member 342 squeezes the reset button 352 and the reset button 352. Since the conductive block 355 is at the innermost part, the toggle bar 3522 cannot toggle the conductive block 355. When the welding button When the welding part 341 is welded, the movable part 342 is pressed against the groove, and the movable part 343 is pressed against the groove, and the movable part 343 is pressed against the groove, and the movable part 341 is pressed against the groove, and the movable part 342 is pressed against the groove, and the movable part 343 is pressed against the groove, and the movable part 342 ...

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe welding device for municipal construction, comprising a mounting seat (1) for placing a pipe, characterized in that: Also includes: A wall thickness detection assembly (2) for fixing a pipeline and measuring the thickness of the pipeline, the wall thickness detection assembly (2) comprising a movable frame (21) arranged on a mounting seat (1) and a movable disk (22) movably mounted on the movable frame (21) for locating the axis of the pipeline; A welding and grinding assembly (3), the welding and grinding assembly (3) comprising a pressing plate (31) provided with a driving shaft (32) and pressing wheels (33) provided at both ends of the driving shaft (32) for resisting and driving the pipe to rotate, and also comprising a movable part (34) rotatably provided on the driving shaft (32), the movable part (34) comprising a grinding part (342) rotatably provided on the driving shaft (32), and a welding part (341) being elastically provided on the grinding part (342), the grinding part (342) being rotatably provided on the driving shaft (32) through a bracket, and a friction plate being provided between the bracket and the driving shaft (32) for driving the movable part (34) to rotate when the driving shaft (32) rotates, so that the welding part (341) and the grinding part (342) are selectively brought into contact with the pipe for welding and grinding. The welding part (341) is slidably arranged on the grinding part (342), and an elastic part (343) is arranged between the welding part (341) and the grinding part (342); two groups of symmetrically distributed guide rings (344) are arranged on a side of the welding part (341) away from the grinding part (342), and the guide rings (344) gradually become thicker from one end to the other end; a toggle member (345) for toggling the welding part (341) to move back and forth is arranged on the driving shaft (32); the toggle member (345) is slidably arranged on the driving shaft (32), and a power member is arranged between a side of the toggle member (345) away from the guide ring (344) and the pressing plate (31), and is used to push the toggle member (345) to squeeze the guide ring (344) to cooperate with the elastic member (343) to move the welding part (341) back and forth; and a judgment component (35) disposed on the pressure plate (31), the judgment component (35) comprising a conductive rod (354) electrically connected to the toggle member (345), a conductive block (355), and a grinding button (351), a reset button (352), and a welding button (353) elastically installed in sequence from bottom to top, and used to start the welding member (341), the grinding member (342), and the swing welding member (341) when the grinding member (342) swings to different positions.

2. A municipal construction pipeline welding device according to claim 1, characterized in that: The mounting seat (1) comprises a movable extrusion member (11) arranged on the opposite side of the wall thickness detection component (2) and used for pushing the pipeline so that it is in close contact with the wall thickness detection component (2).

3. A municipal construction pipeline welding device according to claim 1, characterized in that: A transverse guide column (211) and a longitudinal guide column (212) are slidably mounted on the movable frame (21), and the movable plate (22) is slidably connected to the transverse guide column (211) and the longitudinal guide column (212) respectively, so that the movable plate (22) can move in any direction on the movable frame (21). A measuring ruler (213) is provided on the movable frame (21). A conical table (23) is rotatably mounted on a side of the movable plate (22) close to the pipeline, and a movable bar (24) for moving the measuring ruler (213) is slidably mounted on the conical table (23).

4. A municipal construction pipeline welding device according to claim 3, characterized in that: The conical platform (23) is composed of a circular disk and a frustum, and the circular disk and the movable disk (22) are rotatably connected. The cross section of the frustum forms a right-angled isosceles triangle, which is used to convert the pipeline radius size into the moving size of the movable bar (24) pushing the measuring ruler (213).

5. A pipeline welding device for municipal construction according to claim 4, characterized in that: The wall thickness detection assembly (2) further comprises a receiving plate (25) for receiving signals and measuring height, and a transmitter is provided at the axis of the movable disk (22) for projecting the axis of the pipeline onto the receiving plate (25).

6. A municipal construction pipeline welding device according to claim 1, characterized in that: A fixing plate (3511) for pushing the conductive block (355) is provided at the end of the polishing button (351), a pulling piece (3521) for pulling the conductive block (355) is provided at the end of the reset button (352), and a shifting bar (3522) is rotatably mounted on the pulling piece (3521), a torsion spring is provided between the pulling piece (3521) and the shifting bar (3522), a conical hole (3551) is provided at one end of the conductive block (355) close to the conductive rod (354), and a frustum-shaped protrusion is correspondingly provided on one side of the conductive rod (354) close to the conductive block (355), which is used to drive the conductive block (355) to move and contact and energize when the conductive rod (354) descends.

7. A municipal construction pipeline welding device according to claim 6, characterized in that: A push block is provided between the welding button (353) and the conductive rod (354), and is used to push the conductive rod (354) downward after the welding button (353) is squeezed.

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