Weld joint treatment device for steel pipe production and machining

Abstract

The utility model belongs to the technical field of steel pipe production and processing, and particularly relates to a welding seam processing device for steel pipe production and processing, which comprises a supporting leg, a positioning structure mounted at the top of the supporting leg, a supporting structure mounted in the middle of the positioning structure, and a polishing structure mounted in the middle of the top surface of the positioning structure. The positioning structure comprises a butt joint unit and a clamping and positioning unit, the clamping and positioning unit is arranged at the top of the butt joint unit, the clamping and positioning unit comprises a mounting rod, a sliding block is mounted at the bottom end of the mounting rod, a mounting frame is fixedly mounted at the top end of the mounting rod, and a three-jaw chuck is detachably mounted in the middle of the top surface of the mounting frame. According to the weld joint treatment device for steel pipe production and machining, through the arrangement of the positioning structure, the three-jaw chuck can be used for conducting center clamping and positioning on pipe fittings, the workbench is used for driving the transmission piece and the linkage rod to conduct transmission, and therefore the mounting rod is used for driving the pipe fittings to be in butt joint, and the butt joint precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production and processing, and specifically relates to a weld treatment device for steel pipe production and processing. Background Technique

[0002] At present, the production of large-sized seamless steel pipes is not yet successful in the world. Firstly, it depends on its usage. If the quantity is not large, investing in a large-sized seamless pipe production line is costly, from continuous casting, heating furnace, hot rolling to finishing. Secondly, it is not cost-effective in terms of economic efficiency. While the welded pipe line has great flexibility, changing the specification has little impact on the cost, so it can be widely promoted on a large scale.

[0003] Traditional rust removal uses manual grinding with abrasives. Not only is the labor intensity high, the efficiency is low, the generated dust will also affect physical health, but also it is difficult to maintain uniform and regular grinding, which easily leads to the weld not being beautiful and problems with the overall performance of the product. For some existing rust removal devices, the overall abrasive does not have toughness adjustment, and the abrasive limit is not accurate and reliable enough, which will cause greater damage to the port and the abrasive. At the same time, it is difficult to make convenient adjustments to quickly remove rust from the edges of steel pipes with different diameters, and the applicable range is small.

[0004] As disclosed in a weld treatment device in the production and processing of metal threaded steel pipes in Chinese Patent CN214869581U, it includes a bottom plate, a pipe fitting, and the pipe fitting is arranged on the top of the bottom plate; a column, the column is fixedly installed on the top of the bottom plate; a support block, the support block is slidably installed on the outer wall of the column close to the pipe fitting; a hydraulic cylinder, the hydraulic cylinder is fixedly installed on the top of the bottom plate. The weld treatment device in the production and processing of metal threaded steel pipes has the advantages of being able to adjust the toughness of the abrasive, making the abrasive limit more accurate and reliable, effectively avoiding problems such as notches, indentations, and uneven ports that cause the grinding disc not to reach, and at the same time being able to make convenient positioning adjustments according to the diameter of the steel pipe to quickly and efficiently remove rust from the edges of steel pipes with different diameters, and having a wider applicable range.

[0005] However, in the prior art, when welding pipe fittings, the welded ports will be uneven, which will affect the weld after welding. It is necessary to grind the welded ends of the pipe fittings, and when welding, it is necessary to ensure that the two welded pipe fittings can be centered and aligned.

[0006] Therefore, we urgently need to provide a weld treatment device for steel pipe production and processing. Content of the Utility Model

[0007] The purpose of the present utility model is to provide a weld treatment device for steel pipe production and processing, so as to solve the problems in the prior art that when welding pipe fittings, the welded ports are uneven, which affects the weld after welding, and it is necessary to polish the welded ends of the pipe fittings, and it is necessary to ensure the central positioning and alignment of the two welded pipe fittings during welding.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A weld treatment device for steel pipe production and processing, including support legs, a positioning structure is installed at the top of the support legs, a support structure is installed in the middle of the positioning structure, and a grinding structure is installed in the middle of the top surface of the positioning structure.

[0009] The positioning structure includes a docking unit and a clamping and positioning unit, and the clamping and positioning unit is arranged on the top of the docking unit.

[0010] The clamping and positioning unit includes a mounting rod, a sliding block is installed at the bottom end of the mounting rod, a mounting frame is fixedly installed at the top end of the mounting rod, and a three-jaw chuck is detachably installed in the middle of the top surface of the mounting frame.

[0011] Preferably, the docking unit includes a workbench, an asynchronous motor is installed in the middle of the right side of the workbench, the output end of the asynchronous motor is connected to a transmission member, and a linkage rod is connected to the top surface of the transmission member.

[0012] Preferably, one end of the front and back of the top of the linkage rod is connected to the outer surface of the mounting rod near the bottom, the outer surface of the sliding block and the bottom end of the outer surface of the mounting rod are slidably connected inside the convex chute opened on one side of the left and right ends of the top surface of the workbench near the front and back, the bottom end of the middle of the linkage rod is slidably connected to the inner wall of the rectangular chute opened in the middle of the top surface of the workbench, and the bottom surface of the workbench is fixedly connected to the top end of the support leg. The transmission member is a threaded rod and a threaded barrel, and the inside of the threaded barrel is threadedly connected to the outer surface of the threaded rod with opposite threads at both ends.

[0013] Preferably, the grinding structure includes a support frame, an electric push rod 1 is installed at one end near the front of the middle of the top surface of the support frame, the output end of the electric push rod 1 is connected to a push plate, an electric push rod 2 is installed at the bottom end of the push plate, and the output end of the electric push rod 2 is connected to a grinding assembly.

[0014] Preferably, the bottom end of the support frame is fixedly connected to one end near the front and back of the middle of the top surface of the workbench, and the middle of the outer surface of the push plate is slidably connected to the inner wall of the chute opened in the middle of the top surface of the support frame.

[0015] Preferably, the support structure includes a hydraulic cylinder. The output end of the hydraulic cylinder is connected to a lifting plate. A lifting rod is installed on the top surface of the lifting plate. An installation block is fixedly installed at the top end of the lifting rod. A damping rod is installed in the middle of the top surface of the installation block. A support arc is installed at the top end of the damping rod.

[0016] Preferably, the top of the hydraulic cylinder is detachably connected to the middle of the bottom surface of the workbench. The outer surface of the lifting rod is slidably connected to the inner wall of the I-shaped hole opened in the middle of the top surface of the workbench. The lifting rod is an I-shaped rod. The bottom of the support arc is detachably connected to the top end of the damping rod.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. For the weld treatment device for steel pipe production and processing, through the setting of the positioning structure, the three-jaw chuck can be used to centrally clamp and position the pipe fittings, and the workbench is used to drive the transmission parts and the linkage rod for transmission, so as to drive the pipe fittings for butt joint by the installation rod, thereby ensuring the accuracy of the butt joint.

[0019] 2. For the weld treatment device for steel pipe production and processing, through the setting of the grinding structure and the support structure, the electric push rod 1 is used to drive the push plate for displacement, and the electric push rod 2 is used to drive the grinding assembly for displacement. It can be used to synchronously grind the two butt-jointed ends of the pipe fittings in cooperation with the positioning structure. When grinding, the hydraulic cylinder can be used to drive the lifting rod to lift and the support arc can be used to support the pipe fittings, thereby ensuring the stability during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall external structure schematic diagram of the present utility model;

[0021] Figure 2 is the internal structure schematic diagram of the present utility model;

[0022] Figure 3 is the enlarged internal structure diagram of the positioning structure of the present utility model;

[0023] Figure 4 is the enlarged internal structure diagram of the grinding structure of the present utility model;

[0024] Figure 5 is the enlarged view of the support structure of the present utility model.

[0025] In the figure: 1. Support leg; 101. Workbench; 102. Asynchronous motor; 103. Transmission part; 104. Linking rod; 105. Mounting rod; 106. Sliding block; 107. Mounting bracket; 108. Three-jaw chuck; 201. Hydraulic cylinder; 202. Lifting plate; 203. Lifting rod; 204. Mounting block; 205. Damping rod; 206. Support arc; 301. Support frame; 302. Electric push rod 1; 303. Pushing plate; 304. Electric push rod 2; 305. Grinding assembly. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0028] Embodiment 1:

[0029] A weld treatment device for steel pipe production and processing includes a support leg 1. A positioning structure is installed at the top of the support leg 1, a support structure is installed in the middle of the positioning structure, and a grinding structure is installed in the middle of the top surface of the positioning structure.

[0030] The positioning structure includes a docking unit and a clamping and positioning unit. The clamping and positioning unit is arranged on the top of the docking unit. The clamping and positioning unit includes a mounting rod 105. A sliding block 106 is installed at the bottom end of the mounting rod 105. An installation bracket 107 is fixedly installed at the top end of the mounting rod 105. A three-jaw chuck 108 is detachably installed in the middle of the top surface of the installation bracket 107. The docking unit includes a workbench 101. An asynchronous motor 102 is installed in the middle of the right side of the workbench 101. The output end of the asynchronous motor 102 is connected with a transmission part 103. The top of the outer surface of the transmission part 103 is connected with a linking rod 104.

[0031] One end of the front and back of the top of the linking rod 104 is connected to the outer surface of the mounting rod 105 near the bottom. The outer surface of the sliding block 106 and the bottom end of the outer surface of the mounting rod 105 are slidably connected to the inside of the convex chute opened on the left and right ends of the top surface of the workbench 101 near the front and back sides. The bottom end of the middle of the linking rod 104 is slidably connected to the inner wall of the rectangular chute opened on the middle of the top surface of the workbench 101. The bottom surface of the workbench 101 is fixedly connected to the top end of the support leg 1.

[0032] The grinding structure includes a support frame 301. At one end near the front of the middle of the top surface of the support frame 301, a first electric push rod 302 is installed. The output end of the first electric push rod 302 is connected to a push plate 303. At the bottom end of the push plate 303, a second electric push rod 304 is installed. The output end of the second electric push rod 304 is connected to a grinding assembly 305. The bottom end of the support frame 301 is fixedly connected to the middle of the top surface of the workbench 101 near one end of the front and the back. The middle of the outer surface of the push plate 303 is slidably connected to the inner wall of the chute opened in the middle of the top surface of the support frame 301.

[0033] Through the setting of the positioning structure, the three-jaw chuck 108 can be used to centrally clamp and position the pipe fitting, and the workbench 101 is used to drive the transmission part 103 and the linkage rod 104 to transmit, so that the installation rod 105 is used to drive the pipe fitting to be butted, thereby ensuring the accuracy of the butt joint.

[0034] When positioning and clamping the pipe fitting, the three-jaw chuck 108 is used to centrally position and clamp the pipe fitting. Then, the asynchronous motor 102 is started to drive the transmission part 103 to transmit. The output end of the asynchronous motor 102 drives the bidirectional threaded rod to rotate. By using the threaded connection between the threaded rod and the threaded cylinder, the threaded cylinder is used to drive the linkage rod 104 to displace. The linkage rod 104 drives the installation rod 105 to move. When the installation rod 105 moves, the outer surface of the sliding block 106 is slidably connected to the inside of the convex chute opened near the four corners of the top surface of the workbench 101, so as to limit the movement of the installation rod 105. The movement of the installation rod 105 is used to butt the pipe fitting. Then, the first electric push rod 302 is started to drive the push plate 303 to displace. Then, the second electric push rod 304 is started to drive the grinding assembly 305 to lift, so as to adjust the position of the grinding assembly 305 and grind the mutually approaching ends of the two butted pipes, so as to facilitate the subsequent welding of the two pipe fittings and ensure the quality of the welding seam.

[0035] Embodiment Two:

[0036] On the basis of Embodiment One, the support structure includes a hydraulic cylinder 201. The output end of the hydraulic cylinder 201 is connected to a lifting plate 202. On the top surface of the lifting plate 202, a lifting rod 203 is installed. At the top end of the lifting rod 203, an installation block 204 is fixedly installed. In the middle of the top surface of the installation block 204, a damping rod 205 is installed. At the top end of the damping rod 205, a support arc 206 is installed. The top of the hydraulic cylinder 201 is detachably connected to the middle of the bottom surface of the workbench 101. The outer surface of the lifting rod 203 is slidably connected to the inner wall of the I-shaped hole opened in the middle of the top surface of the workbench 101.

[0037] Through the settings of the grinding structure and the supporting structure, the electric push rod 302 drives the pushing plate 303 to displace, and the electric push rod 304 drives the grinding assembly 305 to displace. Cooperating with the positioning structure, the two ends of the pipe fitting butt joint can be ground synchronously. During grinding, the hydraulic cylinder 201 can be used to drive the lifting rod 203 to lift and lower, and the supporting arc 206 is used to support the pipe fitting, thus ensuring the stability during the grinding process.

[0038] When grinding and welding the mutually approaching ends of two pipe fittings, start the hydraulic cylinder 201 to drive the lifting plate 202 to lift and lower, thereby using the lifting plate 202 to adjust the height of the lifting rod 203, using the lifting rod 203 to drive the damping rod 205 and the supporting arc 206 to adjust the height, and using the supporting arc 206 to abut against the pipe fitting, thereby supporting the pipe fitting and ensuring the stability during the grinding and welding of the pipe fitting, thus ensuring the quality of the welding seam.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A weld processing device for steel pipe production and processing, comprising a support leg (1), characterized in that: A positioning structure is installed on the top of the support leg (1), a supporting structure is installed in the middle of the positioning structure, and a polishing structure is installed in the middle of the top surface of the positioning structure; The positioning structure includes a docking unit and a clamping and positioning unit, and the clamping and positioning unit is arranged on the top of the docking unit; The clamping and positioning unit comprises a mounting rod (105), a sliding block (106) is mounted on the bottom end of the mounting rod (105), a mounting frame (107) is fixedly mounted on the top end of the mounting rod (105), and a three-jaw chuck (108) is detachably mounted on the middle part of the top surface of the mounting frame (107).

2. A weld processing device for steel pipe production and processing according to claim 1, characterized in that: The docking unit comprises a workbench (101), an asynchronous motor (102) is installed in the middle of the right side of the workbench (101), an output end of the asynchronous motor (102) is connected to a transmission member (103), and a linkage rod (104) is connected to the top of the outer surface of the transmission member (103).

3. A weld processing device for steel pipe production and processing according to claim 2, characterized in that: The front and back ends of the top of the linkage rod (104) are connected to the outer surface of the mounting rod (105) near the bottom, the outer surface of the sliding block (106) and the bottom end of the outer surface of the mounting rod (105) are slidably connected to the inside of a convex sliding groove provided at the left and right ends of the top surface of the workbench (101) near the front and back sides, the middle bottom end of the linkage rod (104) is slidably connected to the inner wall of a rectangular sliding groove provided in the middle of the top surface of the workbench (101), and the bottom surface of the workbench (101) is fixedly connected to the top of the support leg (1).

4. The weld processing device for steel pipe production and processing according to claim 1 is characterized in that: The grinding structure comprises a support frame (301), an electric push rod 1 (302) is installed in the middle of the top surface of the support frame (301) near one end of the front side, the output end of the electric push rod 1 (302) is connected to a push plate (303), the bottom end of the push plate (303) is installed with an electric push rod 2 (304), and the output end of the electric push rod 2 (304) is connected to a grinding assembly (305).

5. A weld processing device for steel pipe production and processing according to claim 4, characterized in that: The bottom end of the support frame (301) is fixedly connected to the middle of the top surface of the workbench (101) close to the front and back ends, and the middle of the outer surface of the push plate (303) is slidably connected to the inner wall of the slide groove provided in the middle of the top surface of the support frame (301).

6. The weld processing device for steel pipe production and processing according to claim 1, characterized in that: The support structure comprises a hydraulic cylinder (201), the output end of the hydraulic cylinder (201) is connected to a lifting plate (202), a lifting rod (203) is installed on the top surface of the lifting plate (202), a mounting block (204) is fixedly installed on the top of the lifting rod (203), a damping rod (205) is installed in the middle of the top surface of the mounting block (204), and a supporting arc (206) is installed on the top of the damping rod (205).

7. A weld processing device for steel pipe production and processing according to claim 6, characterized in that: The top of the hydraulic cylinder (201) is detachably connected to the middle of the bottom surface of the workbench (101), and the outer surface of the lifting rod (203) is slidably connected to the inner wall of an I-shaped hole provided in the middle of the top surface of the workbench (101).

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