A pipe positioning device for pipe jacking construction of municipal pipelines

Abstract

The application discloses a pipe positioning device for pipe jacking construction of municipal pipeline construction, which comprises a bottom plate, a frame installed on the top surface of the bottom plate, a clamping assembly installed on the top surface of the bottom plate, two sets of clamping stations arranged on the clamping assembly, two sets of bearing assemblies, a plane moving assembly installed on the frame, a mounting rack installed on the plane moving assembly, a head polishing mechanism, and a control unit for overall control. The head polishing mechanism comprises a head positioning assembly, a transmission assembly and a polishing assembly. The positioning assembly is rotatably connected to the mounting rack, the transmission assembly is fixed to the mounting rack, the transmission assembly is fixed between the positioning assembly, the polishing assembly is installed at the front end of the mounting rack and is arranged in correspondence with the positioning assembly. Through cooperation of the clamping assembly and the bearing assembly, the pipe can be accurately fixed at a suitable position, and the stability of the pipe during the construction process is ensured.

Description

Technical Field

[0001] This invention relates to the field of pipeline construction technology, and in particular to a pipeline positioning device for pipe jacking construction in municipal pipeline construction. Background Technology

[0002] In the field of municipal pipeline construction technology, pipe jacking technology has been widely used in the construction of underground pipeline networks for municipal drainage, water supply, and gas, due to its advantages such as not requiring large-scale ground excavation and minimal disruption to urban roads, green belts, and traffic. During pipe jacking construction, the precise positioning of the pipeline directly affects the connection quality of the municipal pipeline network, the accuracy of the construction axis, and the long-term stable operation of the pipeline.

[0003] Currently, most pipeline positioning devices on the market suffer from poor positioning accuracy, making it difficult to meet the high-precision construction requirements of municipal pipelines. Municipal pipelines have extremely high requirements for sealing; positioning deviations can easily lead to loose pipe connections, resulting in potential leaks such as water and gas leaks. This not only affects the function of the pipeline network but may also damage the road foundation and surrounding buildings. Furthermore, existing devices lack sufficient stability in clamping the pipeline, making it prone to loosening and shifting during the jacking process, further exacerbating positioning errors and increasing the risk of rework in municipal projects.

[0004] Furthermore, existing positioning devices are functionally limited and lack an integrated grinding mechanism for pipe ends. During production, transportation, and storage, municipal pipelines are prone to developing burrs, unevenness, and other defects at their ends. If left untreated, these defects severely impact the quality of pipe connections, failing to meet the stringent construction standards of municipal engineering. However, separate grinding equipment is required during construction, increasing equipment investment and construction procedures. Multiple transfers between positioning and grinding processes prolong the construction cycle, reduce efficiency, and make it difficult to meet the high-efficiency and precision requirements of modern municipal pipe jacking construction.

[0005] Therefore, developing a pipeline positioning device that integrates precise positioning, stable clamping, and end grinding is of great significance for improving the construction quality of municipal pipelines and shortening the construction period. Summary of the Invention

[0006] The purpose of this invention is to provide a pipe positioning device for pipe jacking construction in municipal pipeline construction, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides a pipe positioning device for pipe jacking construction in municipal pipeline construction, comprising:

[0008] A base plate, the top surface of which is fitted with a frame;

[0009] A clamping assembly is mounted on the top surface of the base plate, and the clamping assembly is provided with two sets of clamping stations;

[0010] The support assembly is provided in two sets, and the two sets of support assemblies are respectively installed on the top surface of the base plate and arranged corresponding to the two sets of clamping stations;

[0011] A planar moving assembly, which is mounted on the frame and has a mounting bracket installed on it;

[0012] An end-grinding mechanism includes an end-positioning component, a transmission component, and a grinding component. The positioning component is rotatably connected to the mounting frame, the transmission component is fixed to the mounting frame, and the transmission component is fixed to the positioning component. The grinding component is installed at the front end of the mounting frame and is arranged corresponding to the positioning component.

[0013] A control unit, which is used for overall control.

[0014] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the clamping assembly includes two sets, which are respectively arranged corresponding to the bearing assembly. The clamping assembly includes a mounting base, which is fixed to the top surface of the base plate. A clamping motor is fixedly connected to one side of the mounting base. A bidirectional screw is fixed to the output shaft of the clamping motor. The bidirectional screw is rotatably connected to the mounting base. A fixed seat is slidably connected to the mounting base. The fixed seat is threadedly connected to the bidirectional screw. A clamping plate is fixed to the top surface of the fixed seat. The two sets of clamping plates are arranged correspondingly between each other.

[0015] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the bearing component includes a bearing seat, the bearing seat is installed on the top surface of the base plate by a lifting component, the top surface of the bearing component is provided with a V-shaped groove along the length direction, and the two sides of the V-shaped groove are respectively provided with installation grooves, and a roller is rotatably connected in the installation groove.

[0016] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the planar moving component includes a planar slide, the planar slide being horizontally slidably connected to the frame, a planar moving motor being fixed on the frame, a transmission screw being fixed on the output shaft of the planar moving motor, the transmission screw being rotatably connected to the frame, and the planar slide and the transmission screw being threadedly engaged, a hydraulic push rod being fixedly connected to the top surface of the planar slide, the hydraulic push rod being fixed to the mounting frame, the mounting frame being slidably connected to the top surface of the planar slide via a track, and the hydraulic push rod and the transmission screw being arranged vertically.

[0017] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the positioning component includes an installation plate, which is rotatably connected to the mounting frame via a rotating shaft. The outer circumferential surface of the installation plate has circumferentially spaced grooves, and a sliding plate is slidably connected within the grooves. Arc-shaped positioning plates are fixed to the ends of the sliding plates, and several sets of arc-shaped positioning plates are spliced ​​together to form a ring structure. A stepped groove is provided on one side of each arc-shaped positioning plate. A spring is fixed between the bottom of the sliding plate and the bottom of the groove. A first linear motor is fixedly connected to the top of the mounting frame, and a first mounting plate is fixedly attached to the slider of the first linear motor. A positioning wheel is fixedly connected to the bottom of the first mounting plate. An annular edge is provided on the back of the arc-shaped positioning plate, and the positioning wheel and the annular edge are in a limiting fit.

[0018] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the transmission component includes a transmission motor, the transmission motor is fixed on the top surface of the mounting frame, a speed regulator is fixed on the mounting frame, the transmission motor and the input shaft of the speed regulator are driven by a sprocket and chain system, and the output shaft of the speed regulator is connected to the rotating shaft by a coupling.

[0019] According to the pipe positioning device for jacking construction of municipal pipelines provided by the present invention, the grinding component includes a second linear motor, the second linear motor is fixed on the mounting frame, a second mounting plate is fixed on the slider of the second linear motor, and a grinding wheel is fixedly connected to the bottom of the second mounting plate.

[0020] According to the pipe positioning device for pipe jacking construction of municipal pipelines provided by the present invention, the lifting assembly includes a scissor-type hydraulic lifter, which is installed on the base plate, and the support seat is fixed on the top of the scissor-type hydraulic lifter for controlling the height of the support seat.

[0021] The present invention discloses the following technical effects:

[0022] This invention uses a planar moving component to drive the mounting frame and end grinding mechanism to move flexibly, and works in conjunction with the end positioning component to accurately position the pipe end, effectively solving the problem of poor positioning accuracy in existing devices, ensuring the accuracy of the pipe connection axis, reducing the hidden dangers of water leakage, air leakage and other hazards caused by positioning deviations, and meeting the high-precision construction requirements of municipal pipelines.

[0023] The clamping assembly of this invention is equipped with two sets of clamping stations, which correspond to and cooperate with two sets of bearing components. This can form a stable clamp and support for the pipeline, reduce the loosening and displacement of the pipeline during the jacking process, reduce positioning errors, and reduce the risk of rework in municipal engineering projects.

[0024] This invention integrates an end-grinding mechanism, which drives the positioning component to operate through a transmission component, and works in conjunction with the grinding component to grind the pipe end. It eliminates the need for separate grinding equipment, avoids multiple transfers between the positioning and grinding processes, reduces equipment investment and construction procedures, shortens the construction cycle, improves construction efficiency, and meets the high-efficiency requirements of modern municipal pipe jacking construction.

[0025] The control unit of this invention enables overall control of all components, ensuring coordinated operation of processes such as clamping, positioning, and grinding, further guaranteeing construction quality and efficiency, and helping to improve the overall level of municipal pipeline construction. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This invention provides a schematic diagram of the pipe positioning device for pipe jacking construction in municipal pipeline construction. Figure I ;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 This invention provides a schematic diagram of the pipe positioning device for pipe jacking construction in municipal pipeline construction. Figure II .

[0030] The components are as follows: 1. Base plate; 2. Frame; 3. Mounting bracket; 4. Mounting base; 5. Clamping motor; 6. Fixed base; 7. Clamping plate; 8. Bearing base; 9. Roller; 10. Flat slide table; 11. Flat moving motor; 12. Transmission screw; 13. Hydraulic push rod; 14. Mounting plate; 15. Arc-shaped positioning plate; 16. First linear motor; 17. Positioning wheel; 18. Transmission motor; 19. Speed ​​regulator; 20. Second linear motor; 21. Grinding wheel. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1-3 This invention provides a pipe positioning device for pipe jacking construction in municipal pipeline construction, comprising:

[0034] Base plate 1, and frame 2 is installed on the top surface of base plate 1;

[0035] The clamping assembly is installed on the top surface of the base plate 1, and the clamping assembly is provided with two sets of clamping stations;

[0036] The load-bearing components are provided in two sets. The two sets of load-bearing components are respectively installed on the top surface of the base plate 1 and are arranged corresponding to the two sets of clamping stations.

[0037] A planar moving component is mounted on frame 2, and a mounting bracket 3 is mounted on the planar moving component.

[0038] The end grinding mechanism includes an end positioning component, a transmission component, and a grinding component. The positioning component is rotatably connected to the mounting frame 3, the transmission component is fixed to the mounting frame 3, and the transmission component is fixed to the positioning component. The grinding component is installed at the front end of the mounting frame 3 and is arranged corresponding to the positioning component.

[0039] Control unit: The control unit is used for overall control.

[0040] In operation, the pipe to be jacked is placed at the corresponding position on the top surface of the base plate 1. Two sets of clamping positions on the clamping assembly initially fix the pipe, ensuring its relative stability on the base plate 1. Simultaneously, two sets of bearing components support different parts of the pipe, working in conjunction with the clamping positions to further ensure the stability of the pipe placement and prevent shaking or displacement during subsequent operations. The control unit controls the planar movement component to move on the frame 2, which in turn moves the mounting frame 3. Through precise control of the planar movement component, the mounting frame 3 can move the end-grinding mechanism two-dimensionally on the horizontal plane, moving it to a suitable position directly above the pipe end to be ground, preparing for subsequent end-grinding operations. The end-positioning component is rotatably connected to the mounting frame 3. When the mounting frame 3 moves to the appropriate position, the control unit controls the end-positioning component to precisely align and position it with the pipe end, ensuring the grinding component can accurately grind the pipe end and guaranteeing the accuracy of the grinding position and angle. After positioning is completed, the transmission assembly begins operation under the control of the control unit. Since the transmission assembly and positioning assembly are fixedly connected, the transmission assembly drives the positioning assembly and the entire end-grinding mechanism to move accordingly. Simultaneously, the grinding assembly, driven by the transmission assembly, grinds the pipe end, removing burrs, uneven parts, etc., to achieve the required precision and surface quality. Throughout the entire process, the control unit plays a central control role, coordinating the actions of various components such as the clamping assembly, the planar movement assembly, and the end-grinding mechanism. This ensures that each step is performed in an orderly manner according to the predetermined program and requirements, achieving automation and precision in pipe positioning, movement, and grinding operations.

[0041] The scheme is further optimized. The clamping components include two sets, which are arranged corresponding to the bearing components. The clamping components include a mounting base 4, which is fixed to the top surface of the base plate 1. A clamping motor 5 is fixedly connected to one side of the mounting base 4. A bidirectional screw is fixed to the output shaft of the clamping motor 5. The bidirectional screw is rotatably connected to the mounting base 4. A fixed seat 6 is slidably connected to the mounting base 4. The fixed seat 6 is threadedly connected to the bidirectional screw. A clamping plate 7 is fixed to the top surface of the fixed seat 6. The two sets of clamping plates 7 are arranged correspondingly between each other.

[0042] Two sets of clamping components are arranged corresponding to the load-bearing components. The mounting base 4 is fixed to the top surface of the base plate 1 to provide stable support for the entire component. After the clamping motor 5 is started, its output shaft drives the bidirectional screw to rotate on the mounting base 4. Since the fixed base 6 is threadedly connected to the bidirectional screw and slidably connected to the mounting base 4, according to the principle of thread transmission, the rotation of the bidirectional screw will cause the two fixed bases 6 to move in opposite directions, thereby causing the clamping plates 7 fixed on the top surface of the fixed base 6 to move closer or further apart. After the pipe is placed on the load-bearing component, the clamping motor 5 is controlled to bring the clamping plates 7 closer together until the pipe is clamped and fixed, ensuring that the pipe will not shake or shift during subsequent operations, providing a stable foundation for the positioning and processing of the pipe.

[0043] The scheme is further optimized. The bearing component includes a bearing seat 8, which is installed on the top surface of the base plate 1 through a lifting component. A V-shaped groove is provided on the top surface of the bearing component along the length direction. Installation grooves are opened on both sides of the V-shaped groove, and rollers 9 are rotatably connected in the installation grooves.

[0044] The support seat 8 is mounted on the top surface of the base plate 1 via a lifting assembly, allowing for flexible height adjustment. A V-shaped groove along the length of the top surface of the support seat 8 is used to place the pipe, providing initial positioning and limiting for the pipe. Rollers 9 are rotatably connected within mounting slots on both sides of the V-shaped groove. When the pipe is placed within the V-shaped groove, the rollers 9 contact the pipe surface. During axial movement of the pipe or minor displacement due to other operations, the rollers 9 can roll, significantly reducing the friction between the pipe and the support seat 8, making pipe movement smoother and preventing damage to the pipe surface due to excessive friction. This also facilitates pipe installation and adjustment.

[0045] Further optimization of the scheme: the planar moving component includes a planar slide 10, which is horizontally slidably connected to the frame 2. A planar moving motor 11 is fixed on the frame 2. A transmission screw 12 is fixed on the output shaft of the planar moving motor 11. The transmission screw 12 is rotatably connected to the frame 2, and the planar slide 10 and the transmission screw 12 are threadedly engaged. A hydraulic push rod 13 is fixedly connected to the top surface of the planar slide 10. The hydraulic push rod 13 is fixed to the mounting frame 3. The mounting frame 3 is slidably connected to the top surface of the planar slide 10 via a track. The hydraulic push rod 13 and the transmission screw 12 are arranged vertically.

[0046] A planar slide 10 is horizontally slidably connected to a frame 2. A planar motion motor 11 is fixed to the frame 2, and its output shaft drives a transmission screw 12 to rotate on the frame 2. Since the planar slide 10 and the transmission screw 12 are threadedly engaged, according to the principle of threaded transmission, the rotation of the transmission screw 12 causes the planar slide 10 to move horizontally in a straight line on the frame 2. A hydraulic push rod 13 fixed to the top surface of the planar slide 10 is fixedly connected to a mounting frame 3, and the mounting frame 3 is slidably connected to the top surface of the planar slide 10 via a track. The hydraulic push rod 13 is arranged perpendicularly to the transmission screw 12. By controlling the extension and retraction of the hydraulic push rod 13, the mounting frame 3 can be driven to move in a straight line perpendicular to the direction of movement of the planar slide 10. Thus, through the coordinated control of the planar motion motor 11 and the hydraulic push rod 13, the mounting frame 3 can achieve precise two-dimensional movement within a plane, thereby moving the end-grinding mechanism mounted on the mounting frame 3 to a designated position to meet the grinding requirements of pipe ends at different locations.

[0047] Further optimization of the scheme: the positioning component includes a mounting plate 14, which is rotatably connected to the mounting frame 3 via a rotating shaft. The outer circumferential surface of the mounting plate 14 has circumferentially spaced grooves, and a sliding plate is slidably connected in the grooves. Arc-shaped positioning plates 15 are fixed to the ends of the sliding plates respectively. Several sets of arc-shaped positioning plates 15 are spliced ​​together to form a ring structure. A stepped groove is opened on one side of the arc-shaped positioning plate 15. A spring is fixed between the bottom of the sliding plate and the bottom of the groove. A first linear motor 16 is fixedly connected to the top of the mounting frame 3. A first mounting plate is fixed on the slider of the first linear motor 16. A positioning wheel 17 is fixedly connected to the bottom of the first mounting plate. An annular edge is provided on the back of the arc-shaped positioning plate 15. The positioning wheel 17 is in a limiting fit with the annular edge.

[0048] Mounting plate 14 is rotatably connected to mounting bracket 3 via a pivot, providing a rotational base for the entire positioning assembly. A sliding plate is slidably connected within circumferentially spaced grooves on the outer circumference of mounting plate 14. An arc-shaped positioning plate 15 fixed to the end of the sliding plate can slide along the grooves. In the initial state, the spring between the bottom of the sliding plate and the bottom of the groove is in a certain state, keeping the arc-shaped positioning plate 15 in a certain position. When positioning of the pipe end is required, the first linear motor 16 is activated, and its slider drives the first mounting plate and positioning wheel 17 downwards. The positioning wheel 17 engages with the annular edge on the back of the arc-shaped positioning plate 15. As the positioning wheel 17 descends, it compresses the arc-shaped positioning plate 15, causing the sliding plate to overcome the spring force and slide within the groove. Several sets of arc-shaped positioning plates 15 approach each other and interlock to form a ring structure, thereby tightly wrapping and positioning the pipe end, ensuring the positional stability of the pipe end during grinding and providing a guarantee for subsequent precise grinding.

[0049] Further optimization of the scheme: the transmission component includes a transmission motor 18, which is fixed on the top surface of the mounting bracket 3. A speed regulator 19 is fixed on the mounting bracket 3. The transmission motor 18 and the input shaft of the speed regulator 19 are connected by a sprocket and chain system. The output shaft of the speed regulator 19 is connected to the rotating shaft by a coupling.

[0050] The drive motor 18 is fixed to the top surface of the mounting bracket 3 as a power source, and its output power is transmitted to the input shaft of the speed controller 19 through a sprocket and chain system. The speed controller 19 can adjust the speed of the output shaft according to actual needs, achieving precise control of the rotation speed of the mounting plate 14. The output shaft of the speed controller 19 is connected to the rotating shaft of the mounting plate 14 through a coupling, transmitting the adjusted power to the rotating shaft, thereby driving the mounting plate 14 and the entire positioning and grinding assembly to rotate. Through this transmission method, the rotation speed during grinding can be flexibly adjusted according to the grinding requirements of the pipe end, ensuring the stability of the grinding effect and quality.

[0051] The scheme is further optimized. The grinding component includes a second linear motor 20, which is fixed on the mounting bracket 3. A second mounting plate is fixed on the slider of the second linear motor 20, and a grinding wheel 21 is fixedly connected to the bottom of the second mounting plate.

[0052] The second linear motor 20 is fixed on the mounting bracket 3, and a grinding wheel 21 is connected to the bottom of the second mounting plate fixed on its slider. When grinding of the pipe end is required, the second linear motor 20 is activated, and its slider drives the second mounting plate and the grinding wheel 21 to move linearly, so that the grinding wheel 21 contacts the pipe end. By controlling the speed and direction of the movement of the second linear motor 20, the grinding force and grinding range of the grinding wheel 21 on the pipe end can be adjusted. At the same time, combined with the precise positioning of the pipe end by the positioning component and the rotation of the grinding wheel 21 driven by the transmission component, the pipe end can be ground comprehensively and evenly, removing burrs, uneven parts, etc., so that the pipe end meets the required precision and surface quality requirements.

[0053] The solution is further optimized so that the lifting assembly includes a scissor lift, which is installed on the base plate 1, and the support seat 8 is fixed on the top of the scissor lift to control the height of the support seat 8.

[0054] The scissor lift is mounted on the base plate 1, and the support seat 8 is fixed to the top of the scissor lift. When the height of the support seat 8 needs to be adjusted, hydraulic oil is injected or discharged into the scissor lift by controlling the hydraulic system, changing the position of the piston in the hydraulic cylinder, thereby causing the scissor structure to extend and retract. The extension and retraction of the scissor structure will cause the support seat 8 to rise or fall, achieving precise control over the height of the support seat 8. In this way, the height of the support seat 8 can be flexibly adjusted according to the placement requirements of pipes of different specifications, so that the pipes can be accurately placed in the appropriate position, ensuring good fit between the pipes and the clamping components, positioning components, etc., improving the adaptability and ease of operation of the entire device.

[0055] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0056] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A pipe positioning device for pipe jacking construction in municipal pipeline construction, characterized in that, include: A base plate (1) is provided with a frame (2) mounted on its top surface. A clamping assembly is installed on the top surface of the base plate (1), and the clamping assembly is provided with two sets of clamping stations; The support assembly is provided in two sets, and the two sets of support assemblies are respectively installed on the top surface of the base plate (1) and arranged corresponding to the two sets of clamping stations; A planar moving component is mounted on the frame (2) and a mounting bracket (3) is mounted on the planar moving component. The end grinding mechanism includes an end positioning component, a transmission component and a grinding component. The end positioning component is rotatably connected to the mounting frame (3). The transmission component is fixed on the mounting frame (3). The transmission component is fixed to the end positioning component. The grinding component is installed at the front end of the mounting frame (3) and is arranged corresponding to the end positioning component. Control unit, which is used for overall control; The planar moving assembly includes a planar slide (10), which is horizontally slidably connected to the frame (2). A planar moving motor (11) is fixed on the frame (2). A transmission screw (12) is fixed on the output shaft of the planar moving motor (11). The transmission screw (12) is rotatably connected to the frame (2), and the planar slide (10) and the transmission screw (12) are threaded together. A hydraulic push rod (13) is fixedly connected to the top surface of the planar slide (10). The hydraulic push rod (13) is fixed to the mounting bracket (3). The mounting bracket (3) is slidably connected to the top surface of the planar slide (10) via a track. The hydraulic push rod (13) and the transmission screw (12) are arranged vertically. The end positioning assembly includes a mounting plate (14), which is rotatably connected to the mounting frame (3) via a rotating shaft. The outer circumferential surface of the mounting plate (14) is provided with circumferentially spaced grooves, and a sliding plate is slidably connected in the grooves. An arc-shaped positioning plate (15) is fixed at the end of the sliding plate. Several sets of arc-shaped positioning plates (15) are spliced ​​together to form a ring structure. A stepped groove is provided on one side of the arc-shaped positioning plate (15). A spring is fixed between the bottom of the sliding plate and the bottom of the groove. A first linear motor (16) is fixedly connected to the top of the mounting frame (3). A first mounting plate is fixed on the slider of the first linear motor (16). A positioning wheel (17) is fixedly connected to the bottom of the first mounting plate. An annular edge is provided on the back of the arc-shaped positioning plate (15). The positioning wheel (17) and the annular edge are mutually limiting and engaged.

2. The pipe positioning device for pipe jacking construction in municipal pipeline construction according to claim 1, characterized in that, The clamping assembly is provided in two sets, and the two sets of clamping assemblies are respectively arranged corresponding to the bearing assembly. The clamping assembly includes a mounting base (4), which is fixed to the top surface of the base plate (1). A clamping motor (5) is fixedly connected to one side of the mounting base (4). A bidirectional screw is fixed to the output shaft of the clamping motor (5). The bidirectional screw is rotatably connected to the mounting base (4). A fixed seat (6) is slidably connected to the mounting base (4). The fixed seat (6) is threadedly connected to the bidirectional screw. A clamping plate (7) is fixed to the top surface of the fixed seat (6). The two sets of clamping plates (7) are arranged correspondingly between each other.

3. A pipe positioning device for pipe jacking construction in municipal pipeline construction according to claim 1, characterized in that, The bearing component includes a bearing seat (8), which is installed on the top surface of the base plate (1) by a lifting component. The top surface of the bearing component is provided with a V-shaped groove along the length direction. The two sides of the V-shaped groove are respectively provided with mounting grooves, and a roller (9) is rotatably connected in the mounting groove.

4. A pipe positioning device for pipe jacking construction in municipal pipeline construction according to claim 1, characterized in that, The transmission assembly includes a transmission motor (18), which is fixed on the top surface of the mounting bracket (3). A speed regulator (19) is fixed on the mounting bracket (3). The transmission motor (18) and the input shaft of the speed regulator (19) are connected by a sprocket and chain system. The output shaft of the speed regulator (19) is connected to the rotating shaft by a coupling.

5. A pipe positioning device for pipe jacking construction in municipal pipeline construction according to claim 1, characterized in that, The grinding assembly includes a second linear motor (20), which is fixed on the mounting bracket (3). A second mounting plate is fixed on the slider of the second linear motor (20), and a grinding wheel (21) is fixedly connected to the bottom of the second mounting plate.

6. A pipe positioning device for pipe jacking construction in municipal pipeline construction according to claim 3, characterized in that, The lifting assembly includes a scissor lift, which is mounted on the base plate (1). The support seat (8) is fixed to the top of the scissor lift and is used to control the height of the support seat (8).

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