Bolt-welding combined type steel tower double-sided machining system

Abstract

The utility model discloses a double-sided machining system for a bolting and welding combined type steel tower, and belongs to the technical field of machining of end faces of large-section bolting and welding combined type steel towers. According to the technical scheme, the end face machining device is arranged between a first machining station and a second machining station, the posture adjusting systems are arranged on the first machining station and the second machining station, and the end face machining device is provided with two milling cutter discs which are coaxial in height and correspond to the first machining station and the second machining station. The adjacent sections of the steel tower are located on the two sides of the end face machining equipment correspondingly. The system further comprises a posture adjusting system. Compared with the prior art, the steel tower has the beneficial effects that firstly, the machining period of the steel tower is greatly shortened; secondly, the planeness requirement and the matching property of adjacent end faces are effectively guaranteed; thirdly, forming an end face machining assembly line; and fourthly, the purposes of reducing cost and increasing efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology for the end face of large-section bolt-welded steel towers, and particularly to a double-sided machining system for bolt-welded steel towers. Background Technology

[0002] Compared with concrete main towers, steel structure main towers (hereinafter referred to as steel towers) have advantages such as light weight, small size, good seismic resistance, high degree of automation and low cost. With the development of construction technology, large steel towers are being used in more and more long-span bridges across rivers and seas.

[0003] Bolted and welded steel towers mainly bear vertical pressure. Axial pressure needs to be transmitted through the metal-to-metal contact between the two end faces. Therefore, the matching of the end faces of the segments and the requirements for machining are very high during the manufacturing of steel towers.

[0004] Traditional steel tower end face machining involves transporting individual steel tower segments to the machining station, adjusting the segment's orientation, and then machining the end face of the segment. After machining one end face, the segment is rotated to machine the other end face. Because both the orientation adjustment before machining and the end face machining require considerable time, this construction technique has a long processing cycle and high processing costs. Furthermore, due to machining errors, the metal-to-metal contact rate between adjacent segment end faces cannot be guaranteed reliably.

[0005] Moreover, existing steel tower end face machining systems often use a single support structure, with the base typically placed on the ground. During processing, the base bears significant processing force and weight, which may lead to displacement or deformation, resulting in insufficient stability and affecting processing accuracy and safety. Furthermore, due to the large weight of the base, the distance between the two bases is difficult to adjust, limiting its applicability to steel tower segments of different sizes.

[0006] When machining large or heavy steel tower segments, existing equipment may not provide sufficient stability for the hydraulic jack system, which may lead to instability and increased risk of accidents during the machining process.

[0007] How to solve the above-mentioned technical problems is the challenge facing this utility model. Utility Model Content

[0008] To address the above technical problems, this utility model provides a bolt-welded double-sided machining system for steel towers, which improves the stability, adjustability, processing efficiency, and accuracy of the double-sided machining system, reduces processing costs, and realizes automation and assembly line operation, thus having significant economic benefits and market application value.

[0009] This utility model is achieved through the following measures: a double-sided machining system for a bolt-welded steel tower, including an end face machining equipment set between machining station one and machining station two, and an attitude adjustment system set on machining station one and machining station two. The end face machining equipment is equipped with two milling cutter discs with coaxial heights corresponding to machining station one and machining station two. Adjacent sections of the steel tower are located on both sides of the end face machining equipment.

[0010] It also includes an attitude adjustment system, with the PLC system control console serving as the control unit for the attitude adjustment system and the three-way hydraulic jack system serving as the adjustment unit for the attitude adjustment system.

[0011] The processing station 1 is set up on the side away from the end face machining equipment, and the processing station 2 is set up on the side away from the end face machining equipment.

[0012] The hydraulic flatbed truck is a transport vehicle for transferring steel tower segments between different workstations. Adjacent steel tower segments are transported to both sides of the end-face machining equipment and placed on the attitude adjustment system using the truck.

[0013] By performing double-sided synchronous processing, processing efficiency is improved while ensuring processing accuracy and metal contact rate between adjacent segment end faces.

[0014] The attitude adjustment system includes eight sets of three-way hydraulic jacks symmetrically arranged around the end-face machining equipment. These symmetrically arranged jacks provide balanced adjustment force, ensuring the stability and precision of the steel tower segments during machining.

[0015] The three-way hydraulic jack system includes a base and a three-way hydraulic jack mounted on the base;

[0016] The base has movable rails at its bottom, with two bases mounted on each rail. These rails allow the bases to move and adjust their position. This movement of the bases allows for flexible adjustment of the jack's position to accommodate steel tower segments of different sizes, improving the system's adaptability and flexibility.

[0017] A support plate is provided at one end of the top of the base, and the three-way hydraulic jack is provided on the upper surface of the base.

[0018] The three-way hydraulic jack is located on one side of the support plate. The design of the support plate enhances the stability of the jack, ensuring safety and reliability when adjusting the attitude of steel tower segments.

[0019] The base has an inverted T-shaped positioning groove in the center of its upper surface. Two positioning vertical plates are slidably installed within the positioning groove, fixing the three-way hydraulic jack from both sides. This design of the positioning vertical plates makes the three-way hydraulic jack more stable and improves the accuracy of posture adjustment.

[0020] The main body of the positioning vertical plate is inverted T-shaped, with a slot in the middle of the top, which is matched with a three-way hydraulic jack.

[0021] The slot has vertical plates on both sides, and horizontal plates are provided on the outer side of the vertical plates;

[0022] Both the vertical plate and the horizontal plate are provided with threaded holes, and threaded columns are threaded into the threaded holes;

[0023] The threaded post on the vertical plate secures the three-way hydraulic jack with a nut;

[0024] The upper surface of the base has several evenly distributed threaded holes, and the threaded post on the horizontal plate fixes the positioning vertical plate to the upper surface of the base with nuts. This structural design makes the three-way hydraulic jack more securely fixed, while also facilitating adjustment and maintenance.

[0025] The upper surface of the moving track has an inverted T-shaped sliding groove, and the bottom of the base has an inverted T-shaped slider that slides in sync with the sliding groove. This slider and groove design allows the base to move smoothly, improving the system's flexibility and efficiency.

[0026] The moving track is equipped with baffles at both ends, and an electric push rod is installed on one side of each baffle. The fixed end of the electric push rod is fixedly connected to the side wall of the baffle, and the telescopic end of the electric push rod is fixedly connected to the side wall of the slider. The use of electric push rods makes the movement of the base more convenient and faster, improving the automation level of the entire system.

[0027] The base is equipped with ear plates at both ends. The ear plates facilitate the handling and installation of the base, improving the deployment efficiency of the system.

[0028] The base has a horizontal insertion hole at its bottom for easy movement by forklift. This insertion hole design allows the base to be moved quickly by forklift, improving the system's mobility and flexibility.

[0029] This invention optimizes the traditional single-segment, single-sided machining method into a double-segment, double-sided, synchronous matching machining method. Adjacent steel tower segments are located on either side of the end-face machining equipment. After the two steel tower segments adjust their postures synchronously, they are simultaneously matched and machined on the two contacting end faces of the adjacent segments. This improves the machining efficiency of the steel tower segments while ensuring machining accuracy. To meet the double-sided machining requirements, an end-face machining equipment is provided. This equipment is a large, high-precision milling and boring machine equipped with two coaxial milling cutter heads. To ensure synchronized posture of the segments on both sides, a posture adjustment system is provided. This system includes eight sets of three-way hydraulic jacks symmetrically arranged about the end-face machining equipment. The hydraulic jacks are controlled by a PLC for overall adjustment. To reduce scheduling time, a workstation layout assembly line is set up. The machining equipment is located in the center of the work area, and the steel tower segments to be processed are located on either side of the machining equipment. The segments enter from one direction and exit from the other, forming the end-face machining assembly line.

[0030] Using the aforementioned attitude adjustment system, the attitude of the steel tower segments can be quickly adjusted via PLC numerical control to ensure that the axis and horizontal plane of the segments on both sides of the processing equipment are in the same position.

[0031] Using the aforementioned end-face machining equipment, double-sided machining is completed, and the two end faces of adjacent steel towers that are in contact are simultaneously machined.

[0032] Hydraulic flatbed trucks are used to transfer steel tower segments, forming an assembly line operation.

[0033] The end face machining equipment and the three-way hydraulic jack system are existing technologies and will not be described in detail here.

[0034] Compared with the prior art, the beneficial effects of this utility model are as follows: This solution provides a double-sided machining system for bolted-welded steel towers, including a posture adjustment system with CNC PLC control, a high-precision end-face matching machining method, and a high-precision end-face machining equipment with a double-sided milling cutter; it can simultaneously position two adjacent segments of a large-section bolted-welded steel tower structure and perform matching machining on adjacent rings, and can be widely used in the machining of the end faces of large-section bolted-welded steel towers;

[0035] Compared with the prior art, the advantages of this invention are mainly reflected in the following aspects:

[0036] Improved processing efficiency: Double-sided synchronous processing reduced the processing cycle and improved the machining efficiency of steel tower segments.

[0037] Ensuring machining accuracy: The symmetrically arranged three-way hydraulic jack system and precise posture adjustment ensure stability and accuracy during the machining process, effectively guaranteeing the flatness requirements and matching of adjacent end faces.

[0038] Enhanced system stability: The design of the fixed vertical plate and the movable slide rail enhances system stability and ensures safety during the processing.

[0039] Enhanced adaptability and flexibility: The base's movable track design allows the system to be flexibly adjusted to accommodate steel tower segments of different sizes, thus improving the system's adaptability and flexibility.

[0040] Achieving automation and assembly line operations: Through PLC numerical control and a reasonable workstation layout, an assembly line operation mode is formed, which improves production efficiency and reduces project production cycle.

[0041] Cost reduction: While improving processing efficiency and precision, manual intervention was reduced; material and time costs were lowered; thus achieving cost reduction and efficiency improvement.

[0042] Improving metal contact rate: The contact end faces of adjacent steel tower segments are machined simultaneously using the same set of tools, which greatly improves the contact rate of the end faces;

[0043] To improve the stability of the three-way hydraulic jack: the bottom of the positioning vertical plate slides and matches the positioning groove, which can adjust the positioning vertical plates on both sides of the three-way hydraulic jack. Then, the threaded column on the vertical plate fixes the three-way hydraulic jack from both sides with nuts. The threaded column on the horizontal plate fixes the positioning vertical plate to the upper surface of the base with nuts, thereby improving the stability of the three-way hydraulic jack.

[0044] Improving base stability: The design of baffles at both ends of the moving track and the electric push rod makes the base movement more convenient and faster, improving the automation level of the entire system. The telescopic end of the electric push rod is fixedly connected to the side wall of the slider, ensuring the stability of the base after it reaches the appropriate position. Attached Figure Description

[0045] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0046] Figure 1 This is a schematic diagram illustrating the processing of an embodiment of the present utility model.

[0047] Figure 2 This is a schematic diagram of the processing production line according to an embodiment of the present utility model.

[0048] Figure 3 This is a schematic diagram of the moving track and base in an embodiment of the present invention.

[0049] Figure 4 for Figure 3 A magnified view of part A.

[0050] Figure 5 This is a schematic diagram of the structure of the base and slider in an embodiment of this utility model.

[0051] Figure 6 This is a structural schematic diagram of the positioning vertical plate in an embodiment of the present utility model.

[0052] The attached diagram is labeled as follows: 1. Workstation to be processed; 2. Processing station one; 3. Processing station two; 4. Finished station; 5. Hydraulic flatbed cart; 6. End face machining equipment; 7. Milling cutter head; 8. PLC system control console; 9. Three-way hydraulic jack system; 10. Base; 11. Moving track; 1001. Support plate; 1002. Positioning slide; 12. Positioning vertical plate; 1202. Vertical plate; 1203. Horizontal plate; 13. Threaded column; 15. Nut; 1101. Moving slide; 16. Slider; 17. Baffle; 18. Electric push rod; 20. Ear plate; 21. Insertion hole. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0054] Example 1

[0055] The bolt-welded steel tower double-sided machining system provided in this embodiment includes an end-face machining device 6 set between machining station 1 2 and machining station 2 3, and an attitude adjustment system set on machining station 1 2 and machining station 2 3. The end-face machining device 6 is equipped with two coaxial milling cutter heads 7 corresponding to machining station 1 2 and machining station 2 3. Adjacent steel tower segments are located on both sides of the end-face machining device 6. Figures 1 to 2 As shown, it also includes an attitude adjustment system. The PLC system control console 8 is the control unit of the attitude adjustment system, and the three-way hydraulic jack system 9 is the adjustment unit of the attitude adjustment system.

[0056] Processing station 1, 2, is set up on the side away from the end face machining equipment 6, and processing station 2, 3, is set up on the side away from the end face machining equipment 6, and finishing station 4 is set up on the side away from the end face machining equipment 6.

[0057] Hydraulic flatbed truck 5 is a transport vehicle used to move steel tower sections between different workstations.

[0058] The attitude adjustment system includes 8 sets of three-way hydraulic jacks 9 symmetrically arranged about the end face machining equipment 6.

[0059] Ear plates 20 are provided at both ends of the base 10.

[0060] The base 10 has a horizontal insertion hole 21 at its bottom for transfer via a forklift, such as... Figure 6 As shown.

[0061] This invention optimizes the traditional single-segment, single-sided machining method into a double-segment, double-sided, synchronous matching machining method. Adjacent steel tower segments are located on either side of the end-face machining equipment. After the two steel tower segments adjust their postures synchronously, they are simultaneously matched and machined on the two contacting end faces of the adjacent segments. This improves both the machining efficiency and accuracy of the steel tower segments. To meet the double-sided machining requirements, an end-face machining equipment is provided. This equipment is a large, high-precision milling and boring machine equipped with two coaxial milling cutter heads. To ensure synchronized posture of the segments on both sides, a posture adjustment system is provided. This system includes eight sets of three-way hydraulic jacks symmetrically arranged around the end-face machining equipment. The hydraulic jacks are controlled by a PLC for overall adjustment. To reduce scheduling time, a workstation layout assembly line is set up. The machining equipment is located in the center of the work area, and the steel tower segments to be processed are located on either side of the machining equipment. The segments enter from one direction and exit from the other, forming the end-face machining assembly line.

[0062] The attitude adjustment system, controlled by PLC numerical control, can quickly adjust the attitude of the steel tower segments to ensure that the axis and horizontal plane of the segments on both sides of the processing equipment are in the same position.

[0063] Using end-face machining equipment, double-sided machining is completed, and the two end faces of adjacent steel towers that are in contact are matched and machined simultaneously.

[0064] Hydraulic flatbed trucks are used to transfer steel tower segments, forming an assembly line operation.

[0065] The end face machining equipment and the three-way hydraulic jack system are existing technologies and will not be described in detail here.

[0066] The steel tower machining production line has four workstations: station 1 is the waiting station, stations 2 and 3 are the machining stations, and station 4 is the finished station. The steel towers at these four workstations are continuous adjacent steel tower segments. The hydraulic flatbed cart 5 is a transport vehicle for transferring steel tower segments between different workstations. The end face machining equipment 6 is a high-precision floor-type milling and boring machine for machining the end face of the steel tower. The main column of the equipment includes milling cutter discs 7 with coaxial height on both sides. The PLC system control console 8 is the control unit of the attitude adjustment system, and the three-way hydraulic jack system 9 is the adjustment unit of the attitude adjustment system.

[0067] Two adjacent steel tower segments are transported to processing stations 2 and 3 respectively via hydraulic flatbed trucks 5, and positioned on both sides of the end-face machining equipment 6. The three-way hydraulic jack system 9 is controlled by the PLC system control console 8 to adjust the posture of the two adjacent steel tower segments at processing stations 2 and 3 to meet processing requirements. After the double-sided milling cutter disc 7 on the end-face machining equipment 6 is aligned with the end faces of the steel towers at processing stations 2 and 3, the end-face machining equipment 6 is started to simultaneously perform matching machining of the end faces of the two adjacent steel tower segments at stations 2 and 3. After processing, the steel tower segments at station 3 are transported to the completion station 4 for inspection using hydraulic flatbed trucks 5. After passing inspection, they leave the workshop and proceed to the next process. The steel tower segments at processing station 2 are then transported to the completion station 4 using hydraulic flatbed trucks 5. The steel tower segment is transported to processing station 2 (3) for machining the other end face of this segment. A hydraulic flatbed cart (5) is used to transport the steel tower segment from processing station 1 to processing station 2 for machining the first end face of this segment. The hydraulic flatbed cart (5) is then used to transport the previously completed steel tower segment to processing station 1 for machining. This process is repeated for the next set of steel tower end faces... This cycle continues until all steel tower end faces are machined, forming a streamlined production line for steel tower segment end face machining. This significantly improves production efficiency and reduces the project's production cycle. Furthermore, because adjacent steel tower segments' contact ends are machined simultaneously using the same set of tools, the contact rate of the end faces is greatly increased, effectively improving the machining accuracy of the steel tower end faces.

[0068] Example 2

[0069] Based on Embodiment 1, the device includes an end face machining equipment 6 set between machining station 1 2 and machining station 2 3, and an attitude adjustment system set on machining station 1 2 and machining station 2 3. The end face machining equipment 6 is equipped with two milling cutter discs 7 with coaxial heights corresponding to machining station 1 2 and machining station 2 3. Adjacent sections of the steel tower are located on both sides of the end face machining equipment 6.

[0070] It also includes an attitude adjustment system, with the PLC system control console 8 serving as the control unit for the attitude adjustment system and the three-way hydraulic jack system 9 serving as the adjustment unit for the attitude adjustment system;

[0071] Processing station 1, 2, is set up on the side away from the end face machining equipment 6, and processing station 2, 3, is set up on the side away from the end face machining equipment 6, and finishing station 4 is set up on the side away from the end face machining equipment 6.

[0072] Hydraulic flatbed truck 5 is a transport vehicle used to move steel tower sections between different workstations.

[0073] The attitude adjustment system includes 8 sets of three-way hydraulic jacks 9 symmetrically arranged about the end face machining equipment 6.

[0074] The three-way hydraulic jack system 9 includes a base 10 and a three-way hydraulic jack mounted on the base 10;

[0075] The bottom of the base 10 is provided with a moving track 11, and two bases 10 are provided on each moving track 11.

[0076] A support plate 1001 is provided at one end of the top of the base 10, and a three-way hydraulic jack is provided on the upper surface of the base 10; such as Figure 3 As shown;

[0077] The three-way hydraulic jack is located on one side of the support plate 1001.

[0078] A T-shaped positioning groove 1002 is provided in the middle of the upper surface of the base 10. Two positioning vertical plates 12 are slidably arranged in the positioning groove 1002. The two positioning vertical plates 12 fix the three-way hydraulic jack from both sides. Figures 3 to 4 As shown.

[0079] The main body of the positioning vertical plate 12 is inverted T-shaped, with a slot in the middle of the top, which matches the three-way hydraulic jack.

[0080] The slot has vertical plates 1202 on both sides, and a horizontal plate 1203 is provided on the outer side of the vertical plates 1202; for example Figure 6 As shown;

[0081] Both the vertical plate 1202 and the horizontal plate 1203 are provided with threaded holes, and threaded posts 13 are threadedly connected to the threaded holes.

[0082] The threaded post 13 on the vertical plate 1202 secures the three-way hydraulic jack with a nut 15;

[0083] The upper surface of the base 10 has several evenly distributed threaded holes, and the threaded post 13 on the horizontal plate 1203 fixes the positioning vertical plate to the upper surface of the base 10 by means of nut 15.

[0084] The bottom of the positioning vertical plate 12 slides and matches the positioning slide groove 1002, allowing adjustment of the positioning vertical plates 12 on both sides of the three-way hydraulic jack. Then, the threaded post 13 on the vertical plate 1202 fixes the three-way hydraulic jack from both sides through the nut 15. The threaded post 13 on the horizontal plate 1203 fixes the positioning vertical plate to the upper surface of the base 10 through the nut 15, thereby improving the stability of the three-way hydraulic jack.

[0085] Example 3

[0086] Based on Embodiment 1, the device includes an end face machining equipment 6 set between machining station 1 2 and machining station 2 3, and an attitude adjustment system set on machining station 1 2 and machining station 2 3. The end face machining equipment 6 is equipped with two milling cutter discs 7 with coaxial heights corresponding to machining station 1 2 and machining station 2 3. Adjacent sections of the steel tower are located on both sides of the end face machining equipment 6.

[0087] It also includes an attitude adjustment system, with the PLC system control console 8 serving as the control unit for the attitude adjustment system and the three-way hydraulic jack system 9 serving as the adjustment unit for the attitude adjustment system;

[0088] Processing station 1, 2, is set up on the side away from the end face machining equipment 6, and processing station 2, 3, is set up on the side away from the end face machining equipment 6, and finishing station 4 is set up on the side away from the end face machining equipment 6.

[0089] Hydraulic flatbed truck 5 is a transport vehicle used to move steel tower sections between different workstations.

[0090] The attitude adjustment system includes 8 sets of three-way hydraulic jacks 9 symmetrically arranged about the end face machining equipment 6.

[0091] The three-way hydraulic jack system 9 includes a base 10 and a three-way hydraulic jack mounted on the base 10;

[0092] The bottom of the base 10 is provided with a moving track 11, and two bases 10 are provided on each moving track 11.

[0093] A support plate 1001 is provided at one end of the top of the base 10, and a three-way hydraulic jack is provided on the upper surface of the base 10.

[0094] The three-way hydraulic jack is located on one side of the support plate 1001.

[0095] The upper surface of the moving track 11 is provided with an inverted T-shaped moving groove 1101, and the bottom of the base 10 is provided with an inverted T-shaped slider 16, which slides and matches the moving groove 1101.

[0096] The moving track 11 is equipped with baffles 17 at both ends, and an electric push rod 18 is installed on one side of the baffle 17. The fixed end of the electric push rod 18 is fixedly connected to the side wall of the baffle 17, and the telescopic end of the electric push rod 18 is fixedly connected to the side wall of the slider 16. Figure 4 As shown.

[0097] Based on Example 1, Example 3 further adds an inverted T-shaped moving groove 1101 on the upper surface of the moving track 11 and an inverted T-shaped slider 16 on the bottom of the base 10, so that the base can move smoothly.

[0098] The design of the baffles 17 at both ends of the moving track 11 and the electric push rod 18 makes the movement of the base more convenient and faster, improving the automation level of the entire system. The telescopic end of the electric push rod 18 is fixedly connected to the side wall of the slider 16, ensuring the stability of the base after it reaches the appropriate position.

[0099] The design of the slider and groove allows the base to move smoothly, improving the system's flexibility and efficiency.

[0100] The application of electric actuators makes the base movement more convenient and faster, improves the automation level of the entire system, reduces manual operation, and lowers labor intensity.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-sided machining system for a bolt-welded steel tower, comprising an end face machining device (6) set between machining station one (2) and machining station two (3) and an attitude adjustment system set on machining station one (2) and machining station two (3), wherein the end face machining device (6) is provided with two milling cutter discs (7) with coaxial heights corresponding to machining station one (2) and machining station two (3), and adjacent segments of the steel tower are respectively located on both sides of the end face machining device (6); It also includes an attitude adjustment system, with the PLC system control console (8) serving as the control unit for the attitude adjustment system and the three-way hydraulic jack system (9) serving as the adjustment unit for the attitude adjustment system; Processing station 1 (2) is located on the side away from the end face machining equipment (6) and processing station 2 (3) is located on the side away from the end face machining equipment (6) and finishing station (4) is located. The hydraulic flatbed truck (5) is a transport vehicle for transferring steel tower segments between different work stations.

2. The double-sided machining system for bolted-welded steel towers according to claim 1, characterized in that: The attitude adjustment system includes eight sets of three-way hydraulic jack systems (9) symmetrically arranged with respect to the end face machining equipment (6).

3. The double-sided machining system for bolted-welded steel towers according to claim 1, characterized in that: The three-way hydraulic jack system (9) includes a base (10) and a three-way hydraulic jack mounted on the base (10); The bottom of the base (10) is provided with a moving track (11), and two bases (10) are provided on each moving track (11).

4. The double-sided machining system for bolted and welded steel towers according to claim 3, characterized in that: A support plate (1001) is provided at one end of the top of the base (10), and the three-way hydraulic jack is provided on the upper surface of the base (10); The three-way hydraulic jack is located on one side of the support plate (1001).

5. The double-sided machining system for bolted and welded steel towers according to claim 4, characterized in that: The base (10) has an inverted T-shaped positioning groove (1002) in the middle of its upper surface. Two positioning vertical plates (12) are slidably arranged in the positioning groove (1002). The two positioning vertical plates (12) fix the three-way hydraulic jack from both sides.

6. The double-sided machining system for bolted-welded steel towers according to claim 5, characterized in that: The positioning vertical plate (12) is in the shape of an inverted T, with a slot in the middle of the top, which is matched with a three-way hydraulic jack. The slot has vertical plates (1202) on both sides, and a horizontal plate (1203) is provided on the outside of the vertical plates (1202); Both the vertical plate (1202) and the horizontal plate (1203) are provided with threaded holes, and a threaded column (13) is threadedly connected to the threaded hole; The threaded post (13) on the vertical plate (1202) secures the three-way hydraulic jack with a nut (15); The upper surface of the base (10) has several evenly distributed threaded holes. The threaded post (13) on the horizontal plate (1203) fixes the positioning vertical plate to the upper surface of the base (10) by the nut (15).

7. The double-sided machining system for bolted and welded steel towers according to claim 3, characterized in that: The upper surface of the moving track (11) is provided with an inverted T-shaped moving groove (1101), and the bottom of the base (10) is provided with an inverted T-shaped slider (16), which slides and matches the moving groove (1101).

8. The double-sided machining system for bolted-welded steel towers according to claim 7, characterized in that: The moving track (11) is provided with baffles (17) at both ends, and an electric push rod (18) is provided on one side of the baffle (17). The fixed end of the electric push rod (18) is fixedly connected to the side wall of the baffle (17), and the telescopic end of the electric push rod (18) is fixedly connected to the side wall of the slider (16).

9. The double-sided machining system for bolted and welded steel towers according to claim 3, characterized in that: Ear plates (20) are provided at both ends of the base (10).

10. The double-sided machining system for bolted-welded steel towers according to claim 3, characterized in that: The base (10) has a horizontal insertion hole (21) at the bottom for transfer by forklift.

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