Auxiliary feeding device for pipe end surfacing

Abstract

A pipe end surfacing auxiliary feeding device comprises a support, the support is provided with a feeding mechanism used for conveying a pipeline and an auxiliary mechanism used for assisting pipeline welding, and the lower side of the feeding mechanism is connected with a lifting mechanism used for adjusting the height of the feeding mechanism; the feeding mechanism comprises a roller shaft and a feeding motor for driving the roller shaft to rotate; the auxiliary mechanism comprises rollers arranged on the two sides of the pipeline and used for supporting the pipeline. The rollers are connected with centering handles used for centering the rollers and a distance adjusting motor used for adjusting the distance between the rollers. Compared with the prior art, the feeding device has the advantages that the pipeline is supported by the rollers, so that the pipeline can be matched with a welding machine for rotary welding, the welding efficiency is improved, meanwhile, the rollers can be suitable for pipelines with different sizes under the action of the distance adjusting motor and the height adjusting motor, and the practicability of the feeding device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, and particularly relates to a pipe end surfacing auxiliary feeding device. Background Art

[0002] Pipe end surfacing technology is a surface additive process, which is widely used to repair or enhance the wear resistance and corrosion resistance of the ends of pipes and their components. This technology is mainly used in industries such as petroleum, chemical, electric power, and nuclear industries, especially in pipe systems that transport corrosive or highly abrasive media. The quality of the pipe end surfacing process is directly related to welding stability.

[0003] Chinese Patent with application number 202311437612.2 discloses an automatic feeding device for heating pipe terminal welding. The disclosed feeding device includes a conveying line, which is arranged on a workbench and extends along a predetermined direction for carrying and conveying terminals; a limiting welding mechanism, which is installed on the workbench for clamping and fixing the terminals and simultaneously welding the terminals to the wire harnesses on both sides; a fume purification mechanism, which is connected to the workbench for purifying the fumes generated during the welding operation; wherein, the limiting welding mechanism is externally placed in a cover body on the workbench, and the cover body and the purification box are connected by a first conduit fixed to a first air pump. Chinese Patent with application number 202211597586.5 discloses an automatic feeding device for heating pipe terminal welding. The disclosed feeding device includes spaced-apart frames, a table board is fixedly connected between the frames, and a platform for welding terminals to a heating pipe is arranged on one side of the table board. It further includes: a transfer unit, the transfer unit includes a moving seat slidably arranged on the table board along the length direction of the table board, and further includes four pulleys, both sides of the moving seat are rotatably connected with pulleys, a driving member and a support rod are arranged on the table board, the pulleys are respectively arranged at the top of the support rod and the output end of the driving member, an installation belt is wound around the four pulleys, a plurality of cross frames are fixedly arranged at intervals on the installation belt, and a column for sleeving the terminals is fixedly connected to the cross frames; a feeding unit, which is arranged at one end of the table board away from the platform.

[0004] In the above-disclosed prior art, the pipeline is conveyed through a conveying line, and the pipeline is clamped and fixed by a limiting welding mechanism. However, in the above scheme, the pipeline is prone to move during the conveying process, resulting in poor stability, so that the limiting welding mechanism cannot accurately clamp and fix the pipeline. At the same time, the pipeline cannot rotate under the action of the limiting welding mechanism. When welding the entire circumference of the pipeline, the clamping position needs to be readjusted, thereby reducing the welding efficiency of the pipeline. Content of the Utility Model

[0005] The utility model aims to overcome the defects in the above-mentioned prior art and provides an auxiliary feeding device for pipe end surfacing welding, which can ensure the stable transportation of the pipeline, ensure the stable rotation of the pipeline, and improve the welding efficiency.

[0006] To achieve the above utility model purpose, the following technical solutions are adopted in the utility model: an auxiliary feeding device for pipe end surfacing welding, including a bracket, on which a feeding mechanism for transporting the pipeline and an auxiliary mechanism for assisting the pipeline welding are provided, and a lifting mechanism for adjusting the height of the feeding mechanism is connected to the lower side of the feeding mechanism; the feeding mechanism includes a roller shaft and a feeding motor for driving the rotation of the roller shaft; the auxiliary mechanism includes roller wheels arranged on both sides of the pipeline for supporting the pipeline, a centering handle for centering the roller wheels is connected to the roller wheels, and a spacing adjusting motor for adjusting the spacing between the roller wheels; a height adjusting motor for adjusting the height of the roller wheels is further provided below the auxiliary mechanism.

[0007] As a preferred scheme of the utility model, a transmission shaft is arranged on the roller shaft, and the end of the transmission shaft is connected to the output end of the feeding motor.

[0008] As a preferred scheme of the utility model, support seats for supporting the transmission shaft are arranged at both ends of the transmission shaft, a support platform is arranged below the support seats, and the lifting mechanism is connected to the support platform.

[0009] As a preferred scheme of the utility model, the lifting mechanism includes a transmission worm for lifting the feeding mechanism and a lifting handle for controlling the lifting of the transmission worm, the transmission worm is connected to the support platform, and the end of the lifting handle is connected with a bevel gear meshing with the transmission worm.

[0010] As a preferred scheme of the utility model, a lifting indicating scale is arranged below the bracket, and a pointer is slidably connected to the lifting indicating scale.

[0011] As a preferred scheme of the utility model, the lifting indicating scale is vertically arranged at the bottom of the bracket, and the pointer is connected to the bottom of the support platform and synchronously lifted and lowered with the support platform.

[0012] As a preferred scheme of the utility model, both the roller wheels and the roller shaft are located on the moving path of the pipeline, and moving seats for driving the horizontal movement of the roller wheels are arranged on both roller wheels, and a centering lead screw connected to the centering handle is arranged on the moving seat.

[0013] As a preferred scheme of the utility model, an adjusting lead screw is connected to the output end of the spacing adjusting motor, and the adjusting lead screw is connected to the moving seat.

[0014] As a preferred scheme of the utility model, a lifting platform for supporting the moving seat is arranged at the bottom of the moving seat, and the moving seat is slidably connected to the lifting platform.

[0015] As a preferred embodiment of the present utility model, the output end of the height adjustment motor is connected to a lifting screw rod, and the lifting screw rod is connected to the bottom of the lifting platform.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The roller shaft is provided to realize the transportation of the pipeline. At the same time, under the action of the lifting mechanism, the height of the roller shaft is adjusted to ensure the stability during the high-altitude transportation process. In addition, the pipeline is supported by the roller wheels, ensuring that the pipeline can rotate and weld in cooperation with the welding machine, improving the welding efficiency. At the same time, under the action of the spacing adjustment motor and the height adjustment motor, the roller wheels can be applied to pipelines of different sizes, thereby improving the practicability of the feeding device;

[0018] 2. Further, the radial limit of the pipeline is realized by the roller wheels arranged on both sides of the pipeline, thereby ensuring the stability of the pipeline during rotation and improving the welding precision. In addition, the accuracy of the lifting distance of the feeding mechanism is ensured by the provided lifting indicating scale, so that the pipeline is in a horizontal state, thereby ensuring the stability of the pipeline transportation. Description of the Drawings

[0019] Figure 1 is a structural schematic diagram of the present utility model;

[0020] Figure 2 is a structural schematic diagram of the auxiliary mechanism of the present utility model

[0021] Reference numerals: bracket 1, feeding mechanism 2, roller shaft 201, transmission shaft 202, support seat 2021, feeding motor 203, support platform 204, lifting mechanism 3, lifting handle 301, bevel gear 302, transmission worm 303, lifting indicating scale 304, pointer 3041, pipeline 4, auxiliary mechanism 5, roller wheel 501, moving seat 5011, lifting platform 502, centering lead screw 503, centering handle 5031, spacing adjustment motor 504, adjustment lead screw 5041, height adjustment motor 505, lifting screw rod 506. Detailed Embodiment

[0022] The following will describe in detail the embodiments of the present utility model with reference to the drawings.

[0023] As Figure 1 - Figure 2As shown in the figure, a pipe end surfacing auxiliary feeding device includes a bracket 1, on which a feeding mechanism 2 for conveying a pipe 4 and an auxiliary mechanism 5 for assisting in welding the pipe 4 are provided. A lifting mechanism 3 for adjusting the height of the feeding mechanism 2 is connected to the lower side of the feeding mechanism 2; the feeding mechanism 2 includes a roller shaft 201 and a feeding motor 203 for driving the roller shaft 201 to rotate; the auxiliary mechanism 5 includes roller wheels 501 arranged on both sides of the pipe 4 for supporting the pipe 4. A centering handle 5031 for centering the roller wheels 501 and a spacing adjustment motor 504 for adjusting the spacing between the roller wheels 501 are connected to the roller wheels 501; a height adjustment motor 505 for adjusting the height of the roller wheels 501 is further provided below the auxiliary mechanism 5.

[0024] The utility model is applicable to the feeding and welding rotation actions of the pipe ends of steel pipes with an outer diameter of 114 mm - 610 mm and a wall thickness of 7 mm - 40 mm. Further, the device adopts a combined design of the feeding mechanism 2 and the auxiliary mechanism 5, and two sets are arranged at a certain distance to realize the radial and circumferential movements of the pipe 4. Specifically, the two devices are distributed at the left and right ends of the pipe 4, and can be stably fed into or out of the rotating structure. During the welding process, they rotate together with the rotating structure, which can greatly improve the horizontal control of the 12-m-long pipe 4, increase the stability of rotation, ensure the consistency of the pipe end surfacing welding quality, reduce labor costs and lower the technical requirements of the operator. Combined with the rotating mechanism, the pipe end surfacing work of the pipe 4 can be realized, achieving the reduction of transmission components, combined design, reduction of potential safety hazards, and meeting the technological actions.

[0025] Further, both the feeding mechanism 2 and the auxiliary mechanism 5 are movably arranged on the top of the bracket 1. The lifting of the feeding mechanism 2 is realized through the lifting mechanism 3, and at the same time, the height adjustment of the auxiliary mechanism 5 can be realized through the height adjustment motor 505.

[0026] The middle of the roller shaft 201 is thin and both ends are thick, and the pipe 4 is located in the middle of the roller shaft 201. Further, a transmission shaft 202 is arranged on the roller shaft 201, and the end of the transmission shaft 202 is connected to the output end of the feeding motor 203. The feeding motor 203 drives the transmission shaft 202 to rotate, and then drives the roller shaft 201 to rotate, thereby realizing the conveying of the pipe 4.

[0027] Support seats 2021 for supporting the transmission shaft 202 are provided at both ends of the transmission shaft 202. A support platform 204 is provided below the support seats 2021, and the lifting mechanism 3 is connected to the support platform 204. Further, the support seats 2021 are located at the opposite ends of the transmission shaft 202, and the transmission shaft 202 is rotatably connected to the support seats 2021. The support platform 204 is arranged on the bracket 1 and is slidably connected to the bracket 1, and the support and lifting of the entire feeding mechanism 2 are realized through the support platform 204.

[0028] The lifting mechanism 3 includes a driving worm 303 for lifting the feeding mechanism 2 and a lifting handle 301 for controlling the lifting of the driving worm 303. The driving worm 303 is connected to the support platform 204. The end of the lifting handle 301 is connected with a bevel gear 302 that meshes with the driving worm 303. Further, the driving worm 303 is vertically arranged and is connected to the bottom of the support platform 204. A bevel gear 302 is connected to the lifting handle 301, and the bevel gear 302 meshes with the driving worm 303. By rotating the lifting handle 301, the driving worm 303 is driven to lift, thereby realizing the lifting of the support platform 204.

[0029] A lifting indicating scale 304 is provided below the bracket 1, and a pointer 3041 is slidably connected to the lifting indicating scale 304. Specifically, the lifting indicating scale 304 is vertically arranged at the bottom of the bracket 1, and the pointer 3041 is connected to the bottom of the support platform 204 and lifts synchronously with the support platform 204. When the lifting handle 301 is rotated to control the lifting of the support platform 204, the accurate control of the lifting distance is realized through the cooperation of the pointer 3041 connected to the support platform 204 and the lifting indicating scale 304, thereby ensuring the support of the roller shaft 201 for the pipeline 4, and further enabling the pipeline 4 to be in a horizontal state, ensuring the stability of the pipeline 4 transportation.

[0030] The roller wheels 501 and the roller shafts 201 are both located on the moving path of the pipeline 4, and moving seats 5011 for driving the roller wheels 501 to move horizontally are provided on both roller wheels 501. A centering lead screw 503 connected to the centering handle 5031 is provided on the moving seat 5011. Further, the roller wheels 501 are abutted against the pipe wall of the pipeline 4, the roller wheels 501 are rotatably connected to the moving seats 5011, and the centering lead screw 503 is threadedly connected to the moving seats 5011. By rotating the centering handle 5031, the centering lead screw 503 is driven to rotate, thereby driving the moving seats 5011 to move, so that the middle parts of the two moving seats 5011 are located on the axis of the pipeline 4.

[0031] An adjusting lead screw 5041 is connected to the output end of the spacing adjusting motor 504, and the adjusting lead screw 5041 is connected to the moving seat 5011. Further, the adjusting lead screw 5041 is connected to the moving seat 5011 on the side close to the spacing adjusting motor 504. By controlling the movement of this moving seat 5011 through the spacing adjusting motor 504, the distance between the two moving seats 5011 meets the requirements for the support and rotation of the pipeline 4. After the spacing is adjusted, the centering handle 5031 is rotated to make the two moving seats 5011 move synchronously, thereby ensuring the centering of the two moving seats 5011 and the pipeline 4.

[0032] The bottom of the moving seat 5011 is provided with a lifting platform 502 for supporting the moving seat 5011, and the moving seat 5011 is slidably connected to the lifting platform 502. The output end of the height adjustment motor 505 is connected with a lifting screw rod 506, and the lifting screw rod is connected to the bottom of the lifting platform 502. Further, the lifting platform 502 is slidably connected to the bracket 1, the lifting screw rod 506 is vertically arranged, and the height of the lifting platform 502 is adjusted by driving the lifting screw rod 506 to rotate through the height adjustment motor 505. Specifically, the output end of the height adjustment motor 505 is connected with a bevel gear, and the bevel gear is engaged with the lifting screw rod 506. The height adjustment motor 505 drives the bevel gear to rotate, thereby driving the lifting bolt 506 to lift and lower.

[0033] The working principle of the auxiliary mechanism 5 is as follows:

[0034] Adjust the centering handle 5031 to control the centering of the roller 501. According to the specifications of the pipeline 4, operate the control system, start the height adjustment motor 505, and the lifting screw rod 506 drives the lifting platform 502 to lift and lower. Start the spacing adjustment motor 504 to adjust the spacing of the roller 501. After the pipeline 4 to be processed is fastened with the welding machine, the roller 501 and the welding machine fixture rotate in the same direction to assist the welding machine until the welding is completed. The roller 501 stops rotating, the height of the lifting platform 502 decreases, the roller shaft 201 lifts the pipeline 4 and pushes it out of the welding machine and sends it to the next process.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0036] Although the terms such as bracket 1, feeding mechanism 2, roller shaft 201, transmission shaft 202, support seat 2021, feeding motor 203, support platform 204, lifting mechanism 3, lifting handle 301, bevel gear 302, transmission worm 303, lifting indicating scale 304, pointer 3041, pipeline 4, auxiliary mechanism 5, roller 501, moving seat 5011, lifting platform 502, centering lead screw 503, centering handle 5031, spacing adjustment motor 504, adjustment lead screw 5041, height adjustment motor 505, lifting screw rod 506, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A pipe end cladding auxiliary feeding device, comprising a bracket (1), characterized in that: The support (1) is provided with a feeding mechanism (2) for conveying a pipeline (4) and an auxiliary mechanism (5) for assisting the welding of the pipeline (4); a lifting mechanism (3) for adjusting the height of the feeding mechanism (2) is connected to the lower side of the feeding mechanism (2); the feeding mechanism (2) comprises a roller shaft (201) and a feeding motor (203) for driving the roller shaft (201) to rotate; the auxiliary mechanism (5) comprises rollers (501) arranged on both sides of the pipeline (4) for supporting the pipeline (4); a centering handle (5031) for centering the rollers (501) and a spacing adjustment motor (504) for adjusting the spacing of the rollers (501) are connected to the rollers (501); a height adjustment motor (505) for adjusting the height of the rollers (501) is also provided below the auxiliary mechanism (5).

2. The pipe end cladding auxiliary feeding device according to claim 1, characterized in that: The roller shaft (201) is provided with a transmission shaft (202), and the end of the transmission shaft (202) is connected to the output end of the feeding motor (203).

3. The pipe end cladding auxiliary feeding device according to claim 2, characterized in that: Both ends of the transmission shaft (202) are provided with support seats (2021) for supporting the transmission shaft (202), a support platform (204) is provided below the support seat (2021), and the lifting mechanism (3) is connected to the support platform (204).

4. The pipe end cladding auxiliary feeding device according to claim 3, characterized in that: The lifting mechanism (3) comprises a transmission worm (303) for lifting the feeding mechanism (2) and a lifting handle (301) for controlling the lifting of the transmission worm (303); the transmission worm (303) is connected to the support platform (204); and a bevel gear (302) meshing with the transmission worm (303) is connected to the end of the lifting handle (301).

5. The pipe end cladding auxiliary feeding device according to claim 3, characterized in that: A lifting indicator scale (304) is provided below the support (1), and a pointer (3041) is slidably connected to the lifting indicator scale (304).

6. The pipe end cladding auxiliary feeding device according to claim 5, characterized in that: The lifting indicator scale (304) is vertically arranged at the bottom of the bracket (1), and the pointer (3041) is connected to the bottom of the supporting platform (204) and rises and falls synchronously with the supporting platform (204).

7. The pipe end cladding auxiliary feeding device according to claim 1, characterized in that: The rollers (501) and the roller shaft (201) are both located on the moving path of the pipeline (4), and both rollers (501) are provided with a moving seat (5011) for driving the rollers (501) to move horizontally, and the moving seat (5011) is provided with a centering screw rod (503) connected to the centering handle (5031).

8. The pipe end cladding auxiliary feeding device according to claim 7, characterized in that: An adjusting screw rod (5041) is connected to the output end of the spacing adjusting motor (504), and the adjusting screw rod (5041) is connected to the moving seat (5011).

9. The pipe end cladding auxiliary feeding device according to claim 7, characterized in that: A lifting platform (502) for supporting the moving seat (5011) is provided at the bottom of the moving seat (5011), and the moving seat (5011) is slidably connected to the lifting platform (502).

10. The pipe end cladding auxiliary feeding device according to claim 9, characterized in that: The output end of the height adjustment motor (505) is connected to a lifting screw (506), and the lifting screw is connected to the bottom of the lifting platform (502).

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