Steel structure cutting device

Abstract

The present invention discloses a steel structure cutting device, which relates to the field of metal cutting technology. The present invention pre-arranges an array of fixture fixing holes on a base plate and combines a rotary table + an adjusting electric cylinder to enable workers to perform one-time clamping outside a safe area and remotely adjust the angle and cutting path. When the cutting tool disc breaks or smoke and dust fly, all dangerous events are confined to a closed processing area, significantly reducing the risk of personal injury and improving the occupational health and safety level. The transmission screw and the cutting wheel bracket form a 90-degree swing mechanism, which, combined with the pitch adjustment capability of the base rotary table, can quickly switch between vertical-bevel-horizontal, and complete complex multi-faceted cutting without moving steel parts.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, in particular to a steel structure cutting device. Background Art

[0002] At present, most of the steel structure cutting equipment commonly used in workshops are metal cutting forming machine tools, with fixed grinding wheel saws or single-axis plasma / oxy-fuel cutting machines as typical representatives. Such devices usually have the following shortcomings: Manual close operation: Workers need to manually adjust the angle, press the steel parts and monitor the tool wear in real time in the cutting area, which poses safety hazards such as chipping and splashing, spark burns and smoke inhalation. Single angle adjustment: Traditional models can only change the cutting angle by manually rotating the workpiece or loosening the head bolts. The positioning is slow and the repeatability is low, which makes it difficult to meet the needs of fast processing of complex components with multiple sides and angles. Lack of dynamic vibration reduction monitoring: Existing models usually only install vibration-damping gaskets in the machine base, which passively absorb high-frequency vibrations and cannot actively detect abnormal tool vibrations and stop the machine in time, which can easily lead to tool breakage and deterioration of cutting accuracy. Summary of the Invention

[0003] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0004] Preferably, the transmission screw is rotatably installed between the two side support plates; a passive meshing transmission disk is rotatably installed on one of the side support plates, and the passive meshing transmission disk is coaxially fixed with one end of the transmission screw, and an active meshing transmission disk is coaxially arranged on the side of the passive meshing transmission disk, and the active meshing transmission disk and the passive meshing transmission disk are magnetically matched, and teeth that can mesh with each other are arranged between the opposite surfaces of the passive meshing transmission disk and the active meshing transmission disk.

[0005] Preferably, a swing motor and a cutting motor are fixedly mounted on the vertical bracket, wherein the axis of the swing motor is coaxially arranged with the axis of the active meshing transmission disk, and a spline shaft is fixedly mounted on the output shaft of the swing motor, wherein the active meshing transmission disk is mounted on the spline shaft by a spline sliding manner, and a tension spring is provided around the outer side of the spline shaft, and the ends of the tension spring are rotatably engaged with the active meshing transmission disk and the outer shell of the swing motor. The ends of the tension spring can only rotate axially with the active meshing transmission disk and the swing motor, and cannot move axially, thereby preventing the ends of the tension spring from separating from the active meshing transmission disk and the outer shell of the swing motor. The tension spring pulls the active meshing transmission disk in a direction away from the passive meshing transmission disk.

[0006] Preferably, the cutting wheel bracket is located at the position of the transmission screw and is rotatably installed with a cutting drive gear, the cutting drive gear is coaxially arranged with the transmission screw, and the cutting wheel bracket is rotatably installed with the cutting tool disc bracket at one end away from the transmission screw, and the cutting tool disc bracket and the cutting drive gear are connected by a transmission belt; the cutting tool disc is fixedly installed on the cutting tool disc bracket in a manner that is easy to disassemble by a fixing nut, so that the cutting tool disc is rotatably installed on the cutting wheel bracket through the cutting tool disc bracket.

[0007] Preferably, a gear column is rotatably mounted between the two side support plates, and the gear column is slidably engaged with the cutting drive gear, wherein the gear column is fixedly mounted on the output shaft of the cutting motor; wherein the gear column is arranged parallel to the axis of the transmission screw.

[0008] Preferably, two parallel and symmetrical feed screws are rotatably mounted on the reinforcement frame composed of four vertical brackets, a feed motor is fixedly mounted on one of the vertical brackets, the output shaft of the feed motor is fixedly matched with one of the feed screws, the two feed screws are connected by a feed transmission chain, and a feed extrusion plate is threadedly arranged between the two feed screws, and the two feed screws are used to drive the feed extrusion plate to move along the axial direction of the feed screw on the four vertical brackets.

[0009] Preferably, a triangular bevel is fixedly provided on the cutting wheel bracket, which is in sliding contact with the edge of the feed extrusion plate to provide pressure to the cutting wheel bracket through the triangular bevel (providing contact pressure between the cutting tool disc and the steel structure being cut).

[0010] Preferably, a vibration sensor is fixedly mounted on the triangular bevel or cutting wheel bracket to detect the vibration of the cutting wheel bracket, triangular bevel and cutting tool disc; wherein the cutting wheel bracket is in contact and sliding cooperation with the bottom sliding beam and the top sliding beam.

[0011] Preferably, a plurality of clamp fixing threaded holes are provided in a rectangular array on the base plate below the cutting tool disc, and the clamp fixing threaded holes are used to install the clamp for fixing the steel structure on the base plate through screws; an adjusting electric cylinder is also movably installed on the base plate, and the end of the telescopic rod of the adjusting electric cylinder is movably connected to the circumferential edge of the turntable, so as to drive the turntable to swing on the base plate.

[0012] Compared with the prior art, the present invention has the following advantages: (1) The present invention pre-arranges an array of fixture fixing holes on the base plate and combines a rotary table + an adjusting electric cylinder to enable workers to clamp and adjust the angle and cutting path remotely outside the safety zone. When the cutting tool disc breaks or smoke and dust fly, all dangerous events are confined to the closed processing area, significantly reducing the risk of personal injury and improving the occupational health and safety level; (2) The transmission screw and the cutting wheel bracket of the present invention form a 90-degree swing mechanism. Combined with the pitch adjustment capability of the base rotary table, it can quickly switch between vertical-bevel-horizontal, and complete complex multi-faceted cutting without moving the steel part; (3) The two feed screws of the present invention synchronously drive the feed extrusion plate with a chain, and the axial displacement is converted into cutting pressure through the triangular inclined surface, forming a linear loading curve that can be adjusted in real time according to the thickness and hardness of the steel part. This structure avoids the uncontrolled slippage caused by gravity-type downward pressure, ensures a smooth cut, uniform shrinkage of the heat-affected zone, and significantly improves cutting quality. (4) The cutting wheel bracket or triangular bevel of the present invention integrates a vibration sensor to capture the vibration acceleration data of the cutter disc in real time to determine tool wear, chipping, or sudden change in workpiece material. When the amplitude exceeds the threshold, the system immediately cuts off the cutting motor and issues an alarm, avoiding fragment splashing and reducing material waste. At the same time, the sensor data can be fed back to the control system to optimize the feed rate and angle, forming a closed-loop adaptive processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a diagram showing the installation position of the swing motor of the present invention;

[0015] Figure 3 This is a structural diagram of the feed extrusion plate of the present invention;

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0017] Figure 5 This is a schematic diagram of the structure of the top sliding beam of the present invention;

[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0019] Figure 7This is a structural diagram of the gear column of the present invention;

[0020] Figure 8 This is a schematic diagram of the structure of the triangular bevel of the present invention;

[0021] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0022] Figure 10 For the present invention Figure 8 Schematic diagram of the structure at point D in the middle.

[0023] In the figure: 101-base plate; 102-clamp fixing threaded hole; 103-rotating table; 104-adjusting electric cylinder; 105-vertical bracket; 106-gear column; 107-feed motor; 108-feed extrusion plate; 109-feed screw; 110-swing motor; 111-cutting motor; 112-side support plate; 113-feed transmission chain; 114-bottom sliding beam; 115-cutting wheel bracket; 116-top sliding beam ;117-triangular inclined plane;118-vibration sensor;119-transmission screw;120-passive meshing transmission disc;121-cutting tool disc;122-transmission belt;123-active meshing transmission disc;124-spline shaft;125-tension spring;126-extrusion chute;127-cylindrical block;128-extrusion sleeve block;129-elastic rubber pad;130-cutting drive gear;131-cutting tool disc bracket;132-fixing nut. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1-10 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0025] The present invention provides a steel structure cutting device, comprising a base plate 101, a rotating table 103 is rotatably mounted on the base plate 101, a reinforcing frame consisting of four vertical brackets 105 is fixedly mounted on the rotating table 103, two symmetrically arranged side support plates 112 are fixedly mounted on the reinforcing frame, a bottom sliding beam 114 and a top sliding beam 116 are fixedly mounted between the two side support plates 112, a cutting wheel bracket 115 is arranged between the bottom sliding beam 114 and the top sliding beam 116, the cutting wheel bracket 115 is rotatably sleeved on a transmission screw 119, and the cutting wheel bracket 115 is arranged on the bottom sliding beam 114 with the transmission screw 119 as the axis. 14 and the top sliding beam 116 have a swing angle range of ninety degrees; a cylindrical block 127 is fixedly installed at the contact position between the cutting wheel bracket 115 and the transmission screw 119, and the cylindrical block 127 is threadedly sleeved on the transmission screw 119, and an extrusion chute 126 is also provided on the side of the cylindrical block 127, and an extrusion sleeve 128 is slidably provided in the extrusion chute 126, and an elastic rubber pad 129 is elastically connected between the extrusion sleeve 128 and the extrusion chute 126, and the elastic rubber pad 129 is used to push the extrusion sleeve 128 to extrude the circumferential surface of the transmission screw 119, wherein the extrusion sleeve 128 and the transmission screw 119 slide and frictionally cooperate. The transmission screw 119 is rotatably installed between the two side support plates 112; a passive meshing transmission disk 120 is rotatably installed on one of the side support plates 112, and the passive meshing transmission disk 120 is coaxially fixed with one end of the transmission screw 119, and an active meshing transmission disk 123 is coaxially arranged on the side of the passive meshing transmission disk 120, and the active meshing transmission disk 123 and the passive meshing transmission disk 120 are magnetically matched, and the opposite surfaces of the passive meshing transmission disk 120 and the active meshing transmission disk 123 are provided with teeth that can mesh with each other. A swing motor 110 and a cutting motor 111 are fixedly mounted on the vertical bracket 105. The axis of the swing motor 110 is coaxially arranged with the axis of the active meshing transmission disc 123. A spline shaft 124 is fixedly mounted on the output shaft of the swing motor 110. The active meshing transmission disc 123 is slidingly mounted on the spline shaft 124 via a spline. A tension spring 125 is sleeved around the outer side of the spline shaft 124. The ends of the tension spring 125 are rotatably engaged with the active meshing transmission disc 123 and the outer casing of the swing motor 110. The ends of the tension spring 125 can only rotate axially with the active meshing transmission disc 123 and the swing motor 110, but cannot move axially. This prevents the ends of the tension spring 125 from separating from the active meshing transmission disc 123 and the outer casing of the swing motor 110. The tension spring 125 pulls the active meshing transmission disc 123 toward the passive meshing transmission disc 120.A cutting drive gear 130 is rotatably mounted on the cutting wheel bracket 115 at the position of the transmission screw 119. The cutting drive gear 130 is coaxially arranged with the transmission screw 119. A cutting tool disc bracket 131 is rotatably mounted on the end of the cutting wheel bracket 115 away from the transmission screw 119. The cutting tool disc bracket 131 and the cutting drive gear 130 are connected by a transmission belt 122. The cutting tool disc 121 is fixedly mounted on the cutting tool disc bracket 131 in a manner that allows for easy removal, via a fixing nut 132. The cutting tool disc 121 is rotatably mounted on the cutting wheel bracket 115 via the cutting tool disc bracket 131. A gear column 106 is also rotatably mounted between the two side support plates 112. The gear column 106 is slidably engaged with the cutting drive gear 130. The gear column 106 is fixedly mounted on the output shaft of the cutting motor 111. The gear column 106 is arranged parallel to the axis of the transmission screw 119.

[0026] Two parallel and symmetrically arranged feed screws 109 are also rotatably mounted on the reinforcement frame composed of four vertical brackets 105. A feed motor 107 is fixedly mounted on one of the vertical brackets 105. The output shaft of the feed motor 107 is fixedly mated with one of the feed screws 109. The two feed screws 109 are connected by a feed transmission chain 113. A feed extrusion plate 108 is threadedly mounted between the two feed screws 109. The two feed screws 109 are used to drive the feed extrusion plate 108 to move axially along the four vertical brackets 105. A triangular bevel 117 is also fixedly mounted on the cutting wheel bracket 115. The triangular bevel 117 contacts and slidably engages with the edge of the feed extrusion plate 108, thereby applying pressure to the cutting wheel bracket 115 (providing contact pressure between the cutting tool disc 121 and the steel structure being cut). A vibration sensor 118 is fixedly mounted on the triangular bevel 117 or the cutting wheel bracket 115 to detect vibrations of the cutting wheel bracket 115, the triangular bevel 117, and the cutting tool disc 121. The cutting wheel bracket 115 slides in contact with the bottom sliding beam 114 and the top sliding beam 116. A plurality of threaded holes 102 for fixing fixtures are provided in a rectangular array on the base plate 101 below the cutting tool disc 121. These threaded holes 102 allow the fixtures for fixing the steel structure to be mounted on the base plate 101 via screws. An adjustable electric cylinder 104 is also movably mounted on the base plate 101. The end of the telescopic rod of the adjustable electric cylinder 104 is movably connected to the circumferential edge of the rotating table 103, driving the rotating table 103 to swing on the base plate 101.

[0027] The working principle of the steel structure cutting device disclosed in the present invention is as follows: a clamp is fixed to a base plate 101 using screws and corresponding clamp fixing threaded holes 102, and then the steel structure to be cut is fixed to the corresponding clamp. At this time, the user can stay away from the cutting site to prevent the user from being exposed to risks during the cutting process, such as chipping and damage of the cutting tool disc 121, and harmful gases generated during the cutting process. The electric cylinder 104 is remotely controlled and adjusted, and the telescopic rod of the adjustment electric cylinder 104 drives the rotating table 103 to swing on the base plate 101. Then, the angle between the cutting plane of the cutting tool disc 121 and the steel structure can be controlled (generally, the cutting tool disc 121 is controlled to be perpendicular to the steel structure, but the specific control needs to be selected according to the usage situation). Then, according to the position of the steel structure to be cut, the swing motor 110 is controlled, and the output shaft of the swing motor 110 drives the spline shaft 124 to rotate. The passive meshing transmission disk 120 is also started together with the swing motor 110 (the passive meshing transmission disk 120 is powered by the collector ring), and the passive meshing transmission disk 120 generates magnetic force (the inner wall of the passive meshing transmission disk 120 is embedded with an electromagnetic coil), and the passive meshing transmission disk 120 will attract the active meshing transmission disk 123, and the active meshing transmission disk 123 contacts and meshes with the passive meshing transmission disk 120. At this time, the active meshing transmission disk 123 is in contact with the passive meshing transmission disk 120. The meshing transmission disc 123 slides on the spline shaft 124, and the tension spring 125 is in a stretched state. The rotation of the spline shaft 124 drives the active meshing transmission disc 123 to rotate, and the rotation of the active meshing transmission disc 123 drives the passive meshing transmission disc 120 to rotate. The passive meshing transmission disc 120 drives the transmission screw 119 to rotate, and the rotation of the transmission screw 119 drives the cutting wheel bracket 115 to swing (the cutting wheel bracket 115 does not have an angle of contact with the top sliding beam 116 or the bottom sliding beam 114, that is, the cutting wheel bracket 115 is at the bottom sliding beam 114 and the top 116; it should be noted that at this time the electromagnetic coil inside the passive meshing transmission disc 120 loses power, allowing the passive meshing transmission disc 120 to separate from the active meshing transmission disc 123); however, in the default state, the cutting wheel bracket 115 is in contact with the top sliding beam 116, that is, when the transmission screw 119 rotates, the cutting wheel bracket 115 will slide against the top sliding beam 116, causing the cutting wheel bracket 115 to move along the axial direction of the transmission screw 119, adjusting the cutting tool disc 121 on the cutting wheel bracket 115 and the steel structure The distance between the component cutting position and the cutting tool disc 121 is moved to the upper part of the cutting position, and then the output shaft of the swing motor 110 is reversely controlled to make the transmission screw 119 rotate in the opposite direction, and the cutting wheel bracket 115 is separated from the top sliding beam 116 and swings toward the bottom sliding beam 114 (this is because the elastic rubber pad 129, the extrusion sleeve 128, and the extrusion chute 126 work together to create a rotational friction force between the cutting wheel bracket 115, the cylindrical block 127 and the transmission screw 119, and this friction force is used to drive the cutting wheel bracket 115 to swing.Sliding friction will only occur when the cutting wheel bracket 115 contacts the bottom sliding beam 114 or the top sliding beam 116), and eventually the cutting tool disc 121 contacts the cutting position of the steel structure. Then the cutting motor 111 is started, and the output shaft of the cutting motor 111 drives the gear column 106 to rotate. The rotation of the gear column 106 drives the cutting drive gear 130 to rotate. The cutting drive gear 130 drives the cutting tool disc bracket 131 to rotate through the transmission belt 122. The cutting tool disc bracket 131 drives the cutting tool disc 121 to rotate through the fixing nut 132, and then the cutting tool disc 121 will cut the steel structure. At this time, the feed motor 107 is started, and the output shaft of the feed motor 107 drives the feed screw 109 to rotate. The two feed screws 109 are connected by the feed transmission chain 11 3 rotate synchronously, and then the two feed screws 109 drive the feed extrusion plate 108 to move toward the triangular inclined surface 117 (the feed extrusion plate 108 is initially located at the extreme position away from the triangular inclined surface 117), so that the edge of the feed extrusion plate 108 contacts the inclined surface of the triangular inclined surface 117, and then the feed extrusion plate 108 will squeeze the inclined surface of the triangular inclined surface 117, applying the squeezing force to the cutting tool disc 121. At this time, the cutting tool disc 121 will squeeze and cut the steel structure, providing cutting feed pressure until the cutting tool disc 121 completely cuts off the steel structure (if the vibration is too large due to problems such as the cutting angle or material during the cutting process, the cutting action will be stopped, and the vibration sensor 118 is used to monitor the vibration amplitude of the equipment to prevent the cutting tool disc 121 from breaking). Finally, after waiting for a certain period of time, the user arrives at the site and removes the equipment, or proceeds to the next cutting position. At the same time, the output shaft of the swing motor 110 is controlled to rotate in the reverse direction, and the transmission screw 119 drives the cutting wheel bracket 115 to swing toward the bottom sliding beam 114, so that the cutting wheel bracket 115 contacts the bottom sliding beam 114, and then drives the cutting wheel bracket 115 to move along the transmission screw 119 to the initial position for reset. Finally, the output shaft of the swing motor 110 is controlled in the reverse direction, so that the cutting wheel bracket 115 swings to the position of contacting the top sliding beam 116; at the same time, the feed motor 107 also rotates in the reverse direction, driving the feed extrusion plate 108 to reset, and the equipment is powered off, facilitating the cutting action at the next station.

Claims

1. A steel structure cutting device, characterized in that: The invention comprises a base plate (101), a rotating table (103) is rotatably mounted on the base plate (101), a reinforcing frame composed of four vertical brackets (105) is fixedly mounted on the rotating table (103), two symmetrically arranged side support plates (112) are fixedly mounted on the reinforcing frame, a bottom sliding beam (114) and a top sliding beam (116) are fixedly mounted between the two side support plates (112), and a transmission screw (119) is rotatably mounted between the two side support plates (112); a passive meshing transmission disk (120) is rotatably mounted on one of the side support plates (112), the passive meshing transmission disk (120) is coaxially fixedly matched with one end of the transmission screw (119), and an active meshing transmission disk (120) is coaxially arranged on the side of the passive meshing transmission disk (120). An engaging transmission disk (123), the active engaging transmission disk (123) and the passive engaging transmission disk (120) are magnetically matched, and teeth capable of engaging with each other are provided between the opposing surfaces of the passive engaging transmission disk (120) and the active engaging transmission disk (123), a cutting wheel bracket (115) is provided between the bottom sliding beam (114) and the top sliding beam (116), wherein the cutting wheel bracket (115) is in contact and sliding cooperation with the bottom sliding beam (114) and the top sliding beam (116), the cutting wheel bracket (115) is rotatably sleeved on the transmission screw (119), and the cutting wheel bracket (115) swings between the bottom sliding beam (114) and the top sliding beam (116) with the transmission screw (119) as the axis, and the swing angle range of the cutting wheel bracket (115) between the bottom sliding beam (114) and the top sliding beam (116) is ninety degrees; A cylindrical block (127) is fixedly installed at the contact position between the cutting wheel bracket (115) and the transmission screw (119), and a threaded transmission sleeve of the cylindrical block (127) is arranged on the transmission screw (119), and an extrusion chute (126) is also opened on the side of the cylindrical block (127), and an extrusion sleeve block (128) is slidably provided in the extrusion chute (126), and an elastic rubber pad (129) is elastically connected between the extrusion sleeve block (128) and the extrusion chute (126), and the elastic rubber pad (129) is used to push the extrusion sleeve block (128) to extrude the circumferential surface of the transmission screw (119), wherein the extrusion sleeve block (128) and the transmission screw (119) are in sliding friction cooperation; A swing motor (110) and a cutting motor (111) are fixedly mounted on the vertical bracket (105), wherein the axis of the swing motor (110) is coaxially arranged with the axis of the active meshing transmission disc (123), and a spline shaft (124) is fixedly mounted on the output shaft of the swing motor (110), wherein the active meshing transmission disc (123) is sleeved on the spline shaft (124) in a spline sliding manner, and a tension spring (125) is provided around the outer sleeve of the spline shaft (124), and both ends of the tension spring (125) are rotatably matched with the active meshing transmission disc (123) and the outer shell of the swing motor (110); a cutting drive gear (130) is rotatably mounted on the cutting wheel bracket (115) at the position of the transmission screw rod (119), and the cutting drive gear (130) Coaxially arranged with the transmission screw (119), a cutting tool disc bracket (131) is rotatably mounted on one end of the cutting wheel bracket (115) away from the transmission screw (119), and the cutting tool disc bracket (131) is connected to the cutting drive gear (130) through a transmission belt (122); the cutting tool disc (121) is fixedly mounted on the cutting tool disc bracket (131) through a fixing nut (132); a gear column (106) is also rotatably mounted between the two side support plates (112), and the gear column (106) is slidably engaged with the cutting drive gear (130), wherein the gear column (106) is fixedly mounted on the output shaft of the cutting motor (111); wherein the gear column (106) is arranged parallel to the axis of the transmission screw (119).

2. A steel structure cutting device according to claim 1, characterized in that: Two parallel and symmetrically arranged feed screws (109) are also rotatably mounted on the reinforcing frame composed of four vertical brackets (105), a feed motor (107) is fixedly mounted on one of the vertical brackets (105), an output shaft of the feed motor (107) is fixedly matched with one of the feed screws (109), the two feed screws (109) are connected by a feed transmission chain (113), a feed extrusion plate (108) is provided between the two feed screws (109) via a threaded transmission, and the two feed screws (109) are used to drive the feed extrusion plate (108) to move along the axial direction of the feed screw (109) on the four vertical brackets (105).

3. The steel structure cutting device according to claim 2, characterized in that: A triangular inclined surface (117) is fixedly provided on the cutting wheel bracket (115), and the triangular inclined surface (117) is in contact and sliding engagement with the edge of the feed extrusion plate (108) for providing pressure to the cutting wheel bracket (115) through the triangular inclined surface (117).

4. The steel structure cutting device according to claim 3, characterized in that: A vibration sensor (118) is fixedly mounted on the triangular inclined surface (117) or the cutting wheel bracket (115) for detecting vibration conditions of the cutting wheel bracket (115), the triangular inclined surface (117), and the cutting tool disc (121).

5. The steel structure cutting device according to claim 4, characterized in that: A plurality of fixture fixing threaded holes (102) are provided in a rectangular array on the base plate (101) below the cutting tool disc (121), and the fixture fixing threaded holes (102) are used to fix a fixture for fixing a steel structure on the base plate (101) by screws; an adjusting electric cylinder (104) is also movably mounted on the base plate (101), and the end of the telescopic rod of the adjusting electric cylinder (104) is movably connected to the circumferential edge of the rotating table (103) for driving the rotating table (103) to swing on the base plate (101).

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