Welded pipeline machining device

Abstract

The utility model discloses a welded pipeline machining device which comprises a toothed rail ring assembly, the toothed rail ring assembly is composed of two semicircular toothed rails, a sliding block device is arranged on the toothed rail ring assembly and comprises two rotating gears, and the two sides of each rotating gear are connected with a first connecting block and a first mounting frame correspondingly; the two ends of the first connecting block are rotationally connected with the two rotating gears correspondingly, the bottom end of the first connecting block is rotationally connected with a first driven wheel, the other side of each rotating gear is rotationally connected with the first mounting frame, the bottom end of the first mounting frame is rotationally connected with a second driven wheel, the side face of the first connecting block is connected with a supporting rod, and a cutting and grinding device is mounted at the bottom end of the supporting rod. A first telescopic rod is arranged on the inner ring of the semicircular toothed rail, a motor is mounted on the first mounting frame, and the output end of the motor is in transmission connection with the rotating gear. Compared with an existing pipeline machining device, the pipeline does not need to be disassembled for grinding machining, and compared with the mode that a cutting and grinding device is manually held to grind a welding seam, the labor cost can be saved, and the grinding efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline welding, and in particular relates to a welding pipeline processing device. Background Art

[0002] With the development of industry, pipelines have been used in many fields. Pipes often need to be welded during use. When welding pipelines with unequal wall thicknesses, when the thick-walled side of the thick-walled pipeline is welded to the thin-walled side of the thin-walled pipeline, a cone angle will be generated on the welding surface. When there is a geometric discontinuity at the welding surface, stress concentration will occur at the cone surface. The stress concentration area usually has increased stress and uneven stress distribution, which will lead to damage to the welding material and easily cause cracking and failure at the pipeline weld.

[0003] Therefore, it is necessary to cut and grind the conical surface of the pipeline welding point to make the welding point smooth and continuous. If manual grinding is used, the grinding efficiency is low, so there is an urgent need for a welding pipeline processing device to improve the grinding efficiency of the pipeline welding point. Utility Model Content

[0004] The present application proposes a welding pipeline processing device, which is used to grind the weld after pipeline welding, thereby improving the grinding efficiency of the pipeline weld.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A welding pipe processing device comprises a rack ring assembly, wherein the rack ring assembly is composed of two semicircular racks, the two semicircular racks are detachably connected, a slider device is arranged on the rack ring assembly, the slider device comprises two rotating gears, the rotating gear is meshed with the outer ring of the semicircular rack, the two sides of the rotating gear are respectively connected with a first connecting block and a first mounting frame, the first connecting block is installed on one side of the rotating gear, the two ends of the first connecting block are respectively rotatably connected with the two rotating gears, the bottom end of the first connecting block is rotatably connected with a first driven wheel, the first driven wheel contacts the inner side surface of the rack of the semicircular rack, the other side of the rotating gear is rotatably connected with the first mounting frame, the bottom end of the first mounting frame is rotatably connected with a second driven wheel, the side of the first connecting block is connected with a support rod, the bottom end of the support rod is installed with a cutting and grinding tool, the inner ring of the semicircular rack is provided with a first telescopic rod, the first mounting frame is installed with a motor, and the output end of the motor is transmission-connected with the rotating gear.

[0007] In one embodiment of the present application, fixing columns are provided on the inner side surfaces of both ends of the semicircular rack, and the fixing columns are used to be sleeved with the orifice plate.

[0008] In one embodiment of the present application, the inner ring of the semicircular rack is provided with a plurality of first telescopic rods, and the number of the first telescopic rods is more than two.

[0009] In one embodiment of the present application, a fastening bolt is connected to the fixing block, and an arc-shaped clamping block is connected to the extended end of the first telescopic rod.

[0010] In one embodiment of the present application, a buffer layer is adhered to the concave surface of the arc-shaped clamping block.

[0011] In one embodiment of the present application, the support rod is composed of a second telescopic rod and a third telescopic rod, one end of the second telescopic rod is connected to the first connecting block, the other end of the second telescopic rod is connected to one end of the third telescopic rod, the second telescopic rod and the third telescopic rod are arranged vertically, and the other end of the third telescopic rod is installed with a cutting and grinding tool.

[0012] In one embodiment of the present application, two sets of slider devices are provided on the rack ring assembly.

[0013] In summary, the technical solution proposed in this application includes the following beneficial technical effects: This application fixes two semicircular rack sleeves on the outside of the welding pipeline, and a slider device is provided on the rack ring assembly. The slider device can make a circular motion along the rack ring, thereby driving the cutting and grinding tool at the bottom of the support rod to grind around the weld of the pipeline. Compared with the existing pipeline processing device, this application does not need to disassemble the pipeline for grinding, and can directly set the two semicircular rack sleeves on the pipeline for grinding. Compared with manually holding a cutting and grinding tool to grind the weld, this application can save labor costs and improve grinding efficiency. In addition, by controlling the rotation of the motor and then controlling the movement of the grinding tool, the movement of the grinding tool can be made more stable and uniform, which is beneficial to improving the grinding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a welding pipeline processing device provided in one embodiment of the present application;

[0016] Figure 2 A schematic structural diagram of a welding pipeline processing device provided in one embodiment of the present application;

[0017] Figure 3 A schematic diagram of the side structure of a welding pipeline processing device provided in one embodiment of the present application;

[0018] Figure 4 A schematic diagram of the three-dimensional structure of a welding pipeline processing device provided in one embodiment of the present application;

[0019] Figure 5 A schematic diagram of the structure of a welding pipeline processing device provided in one embodiment of the present application;

[0020] In the figure: rack ring assembly-1, semicircular rack-11, first telescopic rod-111, fixed column-112, orifice plate-113, arc clamping block-114;

[0021] Slider device-2, rotating gear-21, first connecting block-22, first driven wheel-221, first mounting frame-23, second driven wheel-231, motor-232;

[0022] Support rod-3, second telescopic rod-31, third telescopic rod-32;

[0023] Cutting and grinding tools-4. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0025] It should be noted that in the description of the present application, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] The terms "installed", "connected" and "connected" in this application should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0027] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] This embodiment provides a welding pipeline processing device, see Figure 1-Figure 5 As shown, it includes a rack ring assembly 1, which is composed of two semicircular racks 11, and the two semicircular racks 11 are detachably connected. A slider device 2 is provided on the rack ring assembly 1, and the slider device 2 includes two rotating gears 21, and the rotating gears 21 are meshed with the outer rings of the semicircular racks 11. The two sides of the rotating gear 21 are respectively connected with a first connecting block 22 and a first mounting frame 23, and the first connecting block 22 is installed on one side of the rotating gear 21, and the two ends of the first connecting block 22 are respectively rotatably connected with the two rotating gears 21, and the bottom end of the first connecting block 22 is rotatably connected. A first driven wheel 221 is connected, and the other side of the rotating gear 21 is rotatably connected to the first mounting frame 23. The bottom end of the first mounting frame 23 is rotatably connected to the second driven wheel 231. The first driven wheel 221 and the second driven wheel 231 are in contact with the inner side of the semicircular rack 11. The side of the first connecting block 22 is connected to a support rod 3, and a cutting and grinding tool 4 is installed at the bottom end of the support rod 3. The inner circle of the semicircular rack 11 is provided with a first telescopic rod 111. A motor 232 is installed on the first mounting frame 23, and the output end of the motor 232 is transmission-connected to the rotating gear 21.

[0029] In the above embodiment, the two semicircular racks 11 are detachably connected. When in use, the two semicircular racks 11 are sleeved and fixed on the outside of the welding pipeline. A slider device 2 is provided on the rack ring assembly 1. The slider device 2 includes a rotating gear 21, which is meshed with the outer ring of the semicircular rack 11. The first connecting block 22 and the first mounting frame 23 are respectively connected to the two sides of the rotating gear 21. The bottom end of the first connecting block 22 is rotatably connected to the first driven wheel 221, and the bottom end of the first mounting frame 23 is rotatably connected to the second driven wheel 231. The first connecting block 22 and the first mounting frame 23 are used to limit the rotating gear 21 to prevent the rotating gear 21 from being separated from the rack. The first driven wheel 221 and the second driven wheel 231 are in contact with the inner side of the rack of the semicircular rack 11 to reduce the friction between the first connecting block 22 and the first mounting frame 23 when following the movement of the rotating gear 21, which is beneficial to improving the smoothness of the movement of the slider device 2. A motor 232 is installed on the first mounting frame 23, and the output end of the motor 232 is transmission-connected with a rotating gear 21, and the output end of the motor 232 drives a rotating gear 21 to rotate. The two rotating gears 21 are connected to the first mounting frame 23 through the first connecting block 22, that is, one rotating gear 21 rotates and moves on the rack, and then the other rotating gear 21 is pulled to rotate on the rack through the first connecting block 22 and the first mounting frame 23, so that the slider device 2 as a whole can make a circular motion along the rack ring. Two rotating gears 21 are set, and the balance is maintained by the supporting effect of the two rotating gears 21, which is beneficial to improving the stability of the slider device 2 during movement. A support rod 3 is connected to the side of the first connecting block 22, and a cutting and grinding tool 4 is installed at the bottom end of the support rod 3. The slider device 2 drives the cutting and grinding tool 4 at the bottom end of the support rod 3 to grind around the weld of the pipeline. Compared with the existing pipeline processing device, the present application does not need to disassemble the pipeline for grinding processing, and can directly sleeve two semicircular racks 11 on the pipeline for grinding processing. The inner ring of the semicircular rack 11 is provided with a first telescopic rod 111. The length of the first telescopic rod 111 is adjusted to contact the pipeline to support the semicircular rack 11, so that the rack ring assembly 1 remains stable. Compared with manually hand-held cutting and grinding tools 4 for grinding welds, the present application can save labor costs and improve grinding efficiency. In addition, by controlling the rotation of the motor 232 and then controlling the movement of the grinding tool, the movement of the grinding tool can be made more stable and uniform, which is beneficial to improving the grinding accuracy.

[0030] In one embodiment of the present application, see Figure 1 and Figure 2 As shown, the inner side surfaces of both ends of the semicircular rack 11 are provided with fixing columns 112 , and the fixing columns 112 are used for sleeve connection with the orifice plate 113 .

[0031] In the above embodiment, the two semicircular racks 11 are connected by respectively sleeve-fitting the fixing columns 112 on the inner sides of the two semicircular racks 11 close to both ends with the orifice plate 113, and the two semicircular racks 11 can be separated by disassembling the orifice plate 113, so that the two semicircular racks 11 can be detachably connected. The simple structure is beneficial to improving the convenience of the disassembly operation.

[0032] In one embodiment of the present application, refer to Figure 2 As shown, the inner circle of the semicircular rack 11 is provided with a plurality of first telescopic rods 111 , and the number of the first telescopic rods 111 is more than two.

[0033] In the above embodiment, the length of the first telescopic rod 111 is adjusted so that the extended end of the first telescopic rod 111 abuts against the side wall of the pipe. The multiple first telescopic rods 111 increase the supporting contact points between the telescopic rod and the pipe, thereby improving stability. In addition, the lengths of different telescopic rods can be adjusted to adapt to pipes of different shapes.

[0034] In one embodiment of the present application, see Figure 2 , Figure 4 As shown, the extended end of the first telescopic rod 111 is connected to an arc-shaped clamping block 114 .

[0035] In the above embodiment, when the extended end of the telescopic rod comes into contact with the curved pipe, the small contact surface may easily cause the contact end to slip away. The arc-shaped clamping block 114 may fit the outer curved surface of the pipe, and the concave surface of the arc-shaped clamping block 114 may increase the contact area between the telescopic rod and the pipe, which is beneficial to improving the stability of clamping the pipe.

[0036] In one embodiment of the present application, see Figure 2 and Figure 3 As shown, a buffer layer is pasted on the concave surface of the arc-shaped clamping block 114 .

[0037] In the above embodiment, the buffer pad can reduce the hardness of the contact surface between the arc-shaped clamping block 114 and the pipeline to prevent the pipeline wall from being scratched.

[0038] In one embodiment of the present application, see Figure 3 As shown, the support rod 3 is composed of a second telescopic rod 31 and a third telescopic rod 32, one end of the second telescopic rod 31 is connected to the first connecting block 22, the other end of the second telescopic rod 31 is connected to one end of the third telescopic rod 32, the second telescopic rod 31 and the third telescopic rod 32 are arranged vertically, and the other end of the third telescopic rod 32 is installed with a cutting and grinding tool 4.

[0039] In the above embodiment, by adjusting the extension or shortening of the second telescopic rod 31 and the third telescopic rod 32, the horizontal and vertical positions of the cutting and grinding tool 4 relative to the pipeline are adjusted, thereby increasing the flexibility of the cutting and grinding tool 4, which is beneficial to improving the grinding accuracy of the cutting and grinding tool 4 on the weld.

[0040] In one embodiment of the present application, see Figure 1 and Figure 5 As shown, two sets of slider devices 2 are arranged on the rack ring assembly 1.

[0041] In the above embodiment, the two sets of slider devices 2 can drive the cutting and grinding tool 4 to perform grinding work up and down at the same time, which is beneficial to improving work efficiency.

[0042] During the actual use of the present application: when in use, the two semicircular racks 11 are sleeved and fixed on the outside of the welding pipeline, and the inner circle of the semicircular rack 11 is provided with a first telescopic rod 111. The length of the first telescopic rod 111 is adjusted to contact the pipeline to support the semicircular rack 11, so that the rack circle assembly 1 remains stable, and a slider device 2 is provided on the rack circle assembly 1. The slider device 2 includes a rotating gear 21, and the rotating gear 21 is meshed with the outer circle of the semicircular rack 11. The first connecting block 22 and the first mounting frame 23 are respectively connected to the two sides of the rotating gear 21. The first mounting frame 23 is installed with a motor 232, and the output end of the motor 232 is transmission-connected to the rotating gear 21. The output end of the motor 232 drives the rotating gear 21 to rotate, so that the slider device 2 can make a circular motion along the rack circle, thereby driving the cutting and grinding tool 4 at the bottom end of the support rod 3 to grind around the weld of the pipeline.

[0043] Furthermore, if Figure 5 As shown, this device is suitable for large pipelines, especially for grinding welds after welding of pipelines with different wall thicknesses, so that the welds are more uniform and continuous to improve the welding strength. In addition, this device can also be installed on the pipeline before butt welding. For example, before welding a thick-walled pipeline with a thin-walled pipeline, the welding port of the thick-walled pipeline is pre-processed with a transition slope according to the actual situation to facilitate the subsequent welding work. After welding is completed, the device is used to grind and trim the weld to make the pipeline welding place continuous and smooth, reduce stress concentration, and improve the strength of the welding place.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A welding pipeline processing device, characterized in that: The invention comprises a rack ring assembly (1), wherein the rack ring assembly (1) is composed of two semicircular racks (11), wherein the two semicircular racks (11) are detachably connected, and a slider device (2) is arranged on the rack ring assembly (1), wherein the slider device (2) comprises two rotating gears (21), wherein the rotating gears (21) are meshed with the outer rings of the semicircular racks (11), and wherein the two sides of the rotating gears (21) are respectively connected with a first connecting block (22) and a first mounting frame (23), wherein the first connecting block (22) is mounted on one side of the rotating gear (21), wherein the two ends of the first connecting block (22) are respectively rotatably connected to the two rotating gears (21), and the bottom end of the first connecting block (22) is rotatably connected to the rotating gears (21). A first driven wheel (221) is connected, the other side of the rotating gear (21) is rotatably connected to a first mounting frame (23), the bottom end of the first mounting frame (23) is rotatably connected to a second driven wheel (231), the first driven wheel (221) and the second driven wheel (231) are in contact with the inner side surface of the semicircular rack (11), the side of the first connecting block (22) is connected to a support rod (3), the bottom end of the support rod (3) is installed with a cutting and grinding tool (4), the inner ring of the semicircular rack (11) is provided with a first telescopic rod (111), the first mounting frame (23) is installed with a motor (232), the output end of the motor (232) is transmission-connected to the rotating gear (21).

2. The welding pipe processing device according to claim 1, characterized in that: The inner side surfaces of both ends of the semicircular gear rail (11) are provided with fixing columns (112), and the fixing columns (112) are used for sleeve connection with the orifice plate (113).

3. The welding pipe processing device according to claim 1, characterized in that: The inner ring of the semicircular rack rail (11) is provided with a plurality of first telescopic rods (111), and the number of the first telescopic rods (111) is more than two.

4. The welding pipe processing device according to claim 3, characterized in that: The extended end of the first telescopic rod (111) is connected to an arc-shaped clamping block (114).

5. The welding pipe processing device according to claim 4, characterized in that: A buffer layer is pasted on the concave surface of the arc-shaped clamping block (114).

6. The welding pipe processing device according to claim 1, characterized in that: The support rod (3) is composed of a second telescopic rod (31) and a third telescopic rod (32); one end of the second telescopic rod (31) is connected to the first connecting block (22); the other end of the second telescopic rod (31) is connected to one end of the third telescopic rod (32); the second telescopic rod (31) and the third telescopic rod (32) are arranged perpendicularly; the other end of the third telescopic rod (32) is installed with a cutting and grinding tool (4).

7. The welding pipeline processing device according to any one of claims 1 to 6, characterized in that: The rack ring assembly (1) is provided with two sets of slider devices (2).

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