High-strength steel cylinder shape-preserving scribing and dotting device and method

Abstract

The high-strength steel cylinder shape-preserving lineation dotting device comprises base units, rotary shape-preserving units, lineation dotting units, a general control unit and a cylinder workpiece, the multiple sets of base units are arranged on the horizontal plane in the circumferential direction, and the rotary shape-preserving units and the lineation dotting units are assembled on the base units correspondingly; a general control unit is fixedly arranged on the side of the base unit, and cylindrical workpieces are assembled among the multiple groups of rotary shape-preserving units; automatic control is carried out through the master control unit, the rotary shape maintaining unit is adjusted to carry out positioning, rotating and shape maintaining operation according to the diameter size of the cylinder workpiece, then the scribing and dotting unit is operated to the interior or the exterior of the cylinder workpiece according to requirements to carry out scribing and dotting operation, and high-precision scribing and dotting on the large-size high-strength steel cylinder are achieved. The device is easy and convenient to operate, replaces a traditional manual measurement method, keeps the cylindricity of the workpiece all the time, effectively improves the scribing and dotting precision, and reduces the labor intensity of workers and construction risks.

Description

Technical Field

[0001] The invention relates to a device in the technical field of workpiece assembly, in particular to a device and method for shape-preserving marking and dotting of a high-strength steel cylinder. Background Art

[0002] At present, the production of large-scale compression-resistant cylindrical components is usually made of multiple large-sized high-strength steel cylinder workpieces that are butt-welded. In order to ensure the working strength of large-sized high-strength steel cylinders, calculations will be made according to demand, and reinforcement ribs will be added to some positions of the cylinder to strengthen the structural strength. Therefore, it is necessary to accurately calibrate the assembly welding position by marking and dotting. With the development of large-scale industrial equipment and tooling manufacturing industries, the marking and dotting technology on cylindrical workpieces is in urgent need of upgrading. At present, the marking and dotting work on the surface of large cylindrical workpieces in China still needs to be manually positioned using track tooling, and the positioning, correction and shape preservation of the cylindrical workpiece are achieved by adding self-made tooling such as strengthening structure pullers, and then the staff uses tools such as disc rulers and plate rulers to manually measure and complete. By calculating the parameters of the positioning points and positioning lines according to the drawings, the staff uses manual ladders or auxiliary tooling to reach the corresponding positions, and then uses tools such as foreign punches and scribing needles for manual positioning, dotting and marking. Then, the structures such as reinforcement ribs are assembled according to the calibrated positions and positioned and welded, providing better structural strength for large and complex workpieces.

[0003] In the actual construction process, due to the primitive measurement, marking and dotting methods of this method, the degree of automation is low, and the workers need to manually climb up to measure throughout the process, which makes it easy for the marking and dotting positions completed by this method to deviate, making it difficult to meet the positioning accuracy of subsequent parts positioning, installation, welding and other related work. At the same time, this method has low construction efficiency and a high risk of falling from height for construction workers, making the construction process more difficult, and it can no longer meet the needs of high-efficiency, high-precision marking and dotting of large-sized high-strength steel cylinders.

[0004] Therefore, how to make the marking and dotting of large-sized high-strength steel cylinders meet the high-precision technical requirements, improve construction efficiency, and reduce the risk of construction workers falling from heights has become an urgent problem to be solved. Summary of the invention

[0005] In order to improve the accuracy of marking and dotting for the shape preservation of large-sized high-strength steel cylinders, the present invention provides a device and method for marking and dotting for the shape preservation of high-strength steel cylinders. The method is automatically controlled by a master control unit, and the rotating shape preservation unit is adjusted according to the size of the cylindrical workpiece to perform positioning, rotation, and shape preservation operations, and then the marking and dotting unit is operated to the inside or outside of the cylindrical workpiece according to the needs to perform marking and dotting operations, so as to achieve high-precision marking and dotting for the shape preservation of large-sized high-strength steel cylinders, and solve the technical problems of poor construction accuracy, low construction efficiency and high construction risk caused by current manual operations.

[0006] The solution adopted by the present invention to solve the technical problem is: A high-strength steel cylinder shape-keeping marking and dotting device comprises a base unit, a plurality of groups of which are circumferentially arranged on a horizontal plane for providing installation and support; a rotating shape-keeping unit, which is assembled on the base unit and arranged in a circular array around a construction center; a marking and dotting unit, which is assembled on the base unit and is used for performing positioning marking and dotting operations; a general control unit, which is fixedly arranged on the side of the base unit and is used for controlling the working states of the rotating shape-keeping unit and the marking and dotting unit; a cylindrical workpiece, which is assembled between a plurality of groups of the rotating shape-keeping units, and shape-keeping is achieved by the rotating shape-keeping units of a symmetrical group, and high-precision and high-efficiency marking and dotting operations are achieved by the marking and dotting units.

[0007] The embodiment disclosed herein comprises a rail base, with multiple groups arranged on a horizontal plane, one end facing the construction center and the other end extending outward; a lead screw drive device, mounted on one end of the upper portion of the rail base; a bearing, fixed on the other end of the upper portion of the rail base; a transmission screw, mounted between the lead screw drive device and the bearing; and a slider assembly, sleeved on the periphery of the transmission screw and moving thereon under the influence of the rotation of the transmission screw.

[0008] The embodiment disclosed herein comprises a rotating shape-preserving unit comprising a rotating shape-preserving base, which is mounted on the upper part of the slider assembly and whose upper end surface is provided with a mounting groove; a frame body, one end of which is fixedly mounted on one side of the upper part of the rotating shape-preserving base and the other end of which extends vertically upward and whose side surface is provided with a mounting groove; a positioning wheel assembly, one end of which is mounted on the lower part of the side surface of the frame body and the other end of which is arranged toward the cylindrical workpiece for positioning the cylindrical workpiece; a shape-preserving wheel assembly, one end of which is mounted on the upper part of the side surface of the frame body and the other end of which is arranged toward the cylindrical workpiece, and a plurality of groups of shape-preserving wheel assemblies are arrayed along the side surface of the frame body for preserving the cylindrical workpiece; a rotating wheel assembly, one end of which is mounted on the inside of the rotating shape-preserving base and the other end of which can move up and down in a vertical direction for lifting the cylindrical workpiece.

[0009] The present embodiment discloses that the positioning wheel assembly includes a driving device I, which is assembled on the lower part of the side elevation of the frame; a telescopic rod I, whose rear end is assembled and connected to the driving device I and whose front end extends toward the cylindrical workpiece and can be telescoped in the horizontal direction; and a positioning wheel, which is assembled on the front end of the telescopic rod I and rotates in the vertical direction.

[0010] The embodiment disclosed herein comprises a drive device II, which is mounted on the upper side of the side elevation of the frame; a telescopic rod II, whose rear end is assembled and connected to the drive device II and whose front end extends toward the cylindrical workpiece and can be telescoped in the horizontal direction; a conforming wheel, which is mounted on the front end of the telescopic rod II and rotates in the horizontal direction to assist the rotation and conforming of the cylindrical workpiece.

[0011] The embodiment disclosed herein comprises a driving device III, which is mounted inside the rotating conforming base; a telescopic rod III, whose lower end is assembled and connected to the driving device III and whose upper end extends toward the cylindrical workpiece and can be telescoped in the vertical direction; a support frame, which is fixed to the upper end of the telescopic rod III and has an installation groove on its upper end surface; a driving device IV, which is fixed to the side elevation of the support frame; and a rotating wheel, which is rollingly mounted inside the support frame and is used to drive the rotating conforming of the cylindrical workpiece.

[0012] The present embodiment discloses that the marking and dotting unit includes a marking and dotting base, which is assembled on the upper part of the slider assembly; a steering mechanism, which is fixed on the upper part of the marking and dotting base; a robot arm I, one end of which is assembled and connected to the steering mechanism, and the other end of which extends vertically upward and can rotate on a horizontal plane through the steering mechanism; a robot arm II, one end of which is rotatably assembled on the upper end of the robot arm I, and the other end of which extends upward; a robot arm III, one end of which is rotatably assembled on the upper end of the robot arm II, and the other end of which extends upward; a driving device V, which is assembled on the upper end of the robot arm III; a marking and dotting tip, which is assembled on the output end of the driving device V, and is used for marking and dotting the cylindrical workpiece.

[0013] In order to further solve the technical problem to be solved by the present invention, the present invention provides a method for using a high-strength steel cylinder shape-preserving scribing and dotting device, comprising the following steps: Step 1. The positioning wheel assembly and the conformal wheel assembly are retracted into the frame, the rotating wheel assembly is retracted into the rotating conformal base, and the master control unit is calibrated to set this state as the initial state; Step 2. The master control unit drives the positioning wheel assembly to extend and automatically positions the cylindrical workpiece according to the diameter data; Step 3. The cylindrical workpiece is hoisted onto the rotating wheel assembly by a crane, and the positioning wheel assembly assists in receiving the material, so that the cylindrical workpiece is stably positioned on the rotating shape-preserving unit; Step 4. The driving device III drives the telescopic rod III to extend, so that the rotating wheel assembly lifts the cylindrical workpiece to the technically required position; Step 5. The driving device II drives the telescopic rod II to extend, so that the shape-retaining wheel extends and presses against the side wall of the cylindrical workpiece; Step 6. The driving device IV drives the rotating wheel to roll, so that the cylindrical workpiece rotates at a constant speed around its own central axis, and the shape-keeping wheel is driven to ensure the cylindricity of the cylindrical workpiece to achieve rotation and shape-keeping; Step 7. The marking and dotting unit moves to the inside or outside of the cylindrical workpiece according to the demand, and the master control unit calculates the position and running trajectory of the marking and dotting tip according to the three-dimensional space coordinates, and marks the corresponding position of the cylindrical workpiece in coordination with the rotation of the cylindrical workpiece, or drives the driving device V to dot in coordination with the rotation pause of the cylindrical workpiece; Step 8. After the marking and dotting operations are completed, the cylindrical workpiece is lifted away from the working area by a crane.

[0014] Positive effects: The present invention arranges multiple groups of base units circumferentially on a horizontal plane, and assembles a rotating shape-keeping unit and a marking and dotting unit on each group of base units, respectively. A general control unit is fixedly arranged beside the base unit, and a cylindrical workpiece is assembled between the multiple groups of rotating shape-keeping units. The general control unit performs automatic control, and adjusts the rotating shape-keeping unit according to the diameter size of the cylindrical workpiece to perform positioning, rotation, and shape-keeping operations. Then, the marking and dotting unit is operated to the inside or outside of the cylindrical workpiece according to demand to perform marking and dotting operations, thereby achieving high-precision marking and dotting of large-sized high-strength steel cylinders. This device is simple and convenient to operate, and is easy to disassemble and maintain. It replaces the traditional manual measurement method, always maintains the cylindricity of the workpiece, effectively improves the marking and dotting accuracy of large-sized high-strength steel cylindrical workpieces, and reduces the labor intensity and construction risks of workers. It is suitable for use as a high-strength steel cylinder shape-keeping marking and dotting device and method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the embodiment of the present application; Figure 2 A top view of an embodiment of the present application; Figure 3 This is a partially enlarged top view of an embodiment of the present application; Figure 4 This is a front view of the rotating shape-preserving unit structure of an embodiment of the present application; Figure 5 This is a front view of the structure of the scribing and dotting unit according to an embodiment of the present application; Figure 6 This is a schematic diagram of the scribing and dotting unit of the embodiment of the present application operating on the outside of a cylindrical workpiece; Figure 7 This is a schematic diagram of the scribing and dotting unit of an embodiment of the present application operating inside a cylindrical workpiece.

[0016] In the figure, 100. Base unit, 110. Track base, 120. Screw drive, 130. Bearing, 140. Drive screw, 150. Slider assembly; 200. Rotating shape-preserving unit, 210. Rotating shape-preserving base, 220. Frame, 230. Positioning wheel assembly, 231. Driving device I, 232. Telescopic rod I, 233. Positioning wheel; 240.Conformal wheel assembly, 241. Driving device II, 242. Telescopic rod II, 243. Conformal wheel; 250. Rotating wheel assembly, 251. Driving device III, 252. Telescopic rod III, 253. Support frame, 254. Driving device IV, 255. Rotating wheel; 300. Marking and dotting unit, 310. Marking and dotting base, 320. Steering mechanism, 330. Robotic arm I, 340. Robotic arm II, 350. Robotic arm III, 360. Driving device V, 370. Marking and dotting tip; 400. Master control unit; 500. Cylindrical workpiece. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0018] As shown in the figure, a high-strength steel cylinder shape-preserving marking and dotting device comprises: A base unit 100, with multiple groups arranged circumferentially on a horizontal plane, is used to provide installation and support; a rotating shape-keeping unit 200 is mounted on the base unit 100 and arranged in a circular array around the construction center; a marking and dotting unit 300 is mounted on the base unit 100 and is used to perform positioning marking and dotting operations; a general control unit 400 is fixedly mounted on the side of the base unit 100 and is used to control the working states of the rotating shape-keeping unit 200 and the marking and dotting unit 300; a cylindrical workpiece 500 is mounted between multiple groups of the rotating shape-keeping units 200, and shape retention is achieved through the symmetrical group of rotating shape-keeping units 200, and high-precision and high-efficiency marking and dotting operations are achieved through the marking and dotting units 300.

[0019] Specifically, the base units 100 are arranged in a plurality of groups circumferentially on a horizontal plane, and the circumferential angles of the arrangement positions are 0°, 30°, 60°, 120°, 180°, 240°, and 300°, respectively, for providing installation and support; the rotating shape-keeping units 200 are assembled on the base units 100 by bolt connection, and are arranged in a circular array around the construction center, and the circumferential angles of the arrangement positions are 0°, 60°, 120°, 180°, 240°, and 300°, respectively, and the cylindrical workpiece 500 assembled therein is maintained in cylindricality by the symmetrical group of rotating shape-keeping units 200; the marking and dotting units 300 is assembled on the base unit 100 by bolt connection, and the circular angle of the arrangement position is 30°, which is used for positioning, marking and dotting operations; the general control unit 400 is fixedly arranged on the side of the base unit 100, and is used to control the working states of the rotating shape-keeping unit 200 and the marking and dotting unit 300, so as to realize the overall automated management of the device; the cylindrical workpiece 500 is assembled between multiple groups of the rotating shape-keeping units 200, and the shape is maintained by the symmetrical group of the rotating shape-keeping units 200, and the high-precision and high-efficiency marking and dotting operations are realized by the marking and dotting units 300.

[0020] The base unit 100 includes a rail base 110, which is arranged in multiple groups on a horizontal plane, with one end facing the construction center and the other end extending outward; a screw drive device 120, which is assembled at one end of the upper part of the rail base 110; a bearing 130, which is fixed at the other end of the upper part of the rail base 110; a transmission screw 140, which is assembled between the screw drive device 120 and the bearing 130; a slider assembly 150, which is sleeved on the outer periphery of the transmission screw 140 and moves thereon under the influence of the rotation of the transmission screw 140.

[0021] Specifically, the rail base 110 is arranged in multiple groups circumferentially on a horizontal plane, with one end facing the construction center and the other end extending outward, and the circumferential angles of the arrangement positions are 0°, 30°, 60°, 120°, 180°, 240°, and 300° respectively; the lead screw drive device 120 is fixedly assembled at one end of the upper part of the rail base 110 by bolt connection, and is arranged away from the construction center; the bearing 130 is fixedly arranged at the other end of the upper part of the rail base 110 by welding, arranged close to the construction center, and coaxially arranged with the output end of the lead screw drive device 120; the transmission screw 140 is rotatably assembled between the lead screw drive device 120 and the bearing 130, and is driven by the lead screw drive device 120 to rotate forward and reverse on the bearing 130 as required; the slider assembly 150 is set on the periphery of the transmission screw 140, and a threaded hole adapted to the transmission screw 140 is opened inside the slider assembly, and moves horizontally at a uniform speed thereon under the influence of the rotation of the transmission screw 140.

[0022] The rotating shape-keeping unit 200 includes a rotating shape-keeping base 210, which is assembled on the upper part of the slider assembly 150 and has an installation groove on its upper end surface; a frame body 220, one end of which is fixed on one side of the upper part of the rotating shape-keeping base 210 and the other end of which extends vertically upward and has an installation groove on its side surface; a positioning wheel assembly 230, one end of which is assembled on the lower part of the side surface of the frame body 220 and the other end is arranged toward the cylindrical workpiece 500 for positioning the cylindrical workpiece 500; a shape-keeping wheel assembly 240, one end of which is assembled on the upper part of the side surface of the frame body 220 and the other end is arranged toward the cylindrical workpiece 500, and a plurality of groups of the shape-keeping wheel assemblies 240 are arranged along the side surface of the frame body 220 for shape-keeping the cylindrical workpiece 500; a rotating wheel assembly 250, one end of which is assembled inside the rotating shape-keeping base 210 and the other end of which can move up and down in the vertical direction for lifting the cylindrical workpiece 500.

[0023] Specifically, the rotating shape-keeping base 210 is assembled to the upper part of the slider assembly 150 by bolt connection, and its upper end surface is provided with a mounting groove for assembling the rotating wheel assembly 250; one end of the frame body 220 is fixedly arranged on one side of the upper part of the rotating shape-keeping base 210 by welding, and the other end extends vertically upward, and its side elevation is provided with a mounting groove for assembling the positioning wheel assembly 230 and the shape-keeping wheel assembly 240; one end of the positioning wheel assembly 230 is fixedly assembled to the lower part of the side elevation of the frame body 220 by bolt connection, and the other end extends toward the cylindrical workpiece 500, and is used to perform Positioning and assisting it to be smoothly positioned on the rotating shape-keeping unit 200; one end of the shape-keeping wheel assembly 240 is fixedly assembled on the upper side elevation of the frame 220 by bolt connection, and the other end is extended toward the cylindrical workpiece 500, and multiple groups of the shape-keeping wheel assemblies 240 are arrayed along the side elevation of the frame 220, and the cylindrical workpiece 500 is shape-maintained through the interaction of the symmetrical groups of shape-maintaining wheel assemblies 240; one end of the rotating wheel assembly 250 is fixedly assembled on the inside of the mounting groove of the rotating shape-maintaining base 210 by bolt connection, and the other end can move up and down in the vertical direction, so as to lift the cylindrical workpiece 500 to the technically required position.

[0024] The positioning wheel assembly 230 includes a driving device I231, which is assembled on the lower part of the side elevation of the frame 220; a telescopic rod I232, the rear end of which is assembled and connected to the driving device I231, and the front end extends toward the cylindrical workpiece 500, and can be telescoped in the horizontal direction; a positioning wheel 233, which is assembled on the front end of the telescopic rod I232 and rotates in the vertical direction.

[0025] Specifically, the driving device I231 is fixedly assembled on the lower side elevation of the frame 220 by bolt connection, and its output end is arranged toward the cylindrical workpiece 500; the rear end of the telescopic rod I232 is assembled and connected to the output end of the driving device I231, and its front end extends toward the cylindrical workpiece 500, and can be telescoped in the horizontal direction; the positioning wheel 233 is rotatably assembled on the front end of the telescopic rod I232, and rotates in the vertical direction, and is used to assist in material connection and positioning.

[0026] The conforming wheel assembly 240 includes a driving device II 241, which is assembled on the upper side of the side elevation of the frame 220; a telescopic rod II 242, whose rear end is assembled and connected to the driving device II 241 and whose front end extends toward the cylindrical workpiece 500 and can be telescoped in the horizontal direction; a conforming wheel 243, which is assembled on the front end of the telescopic rod II 242 and rotates in the horizontal direction to assist the rotation and conforming of the cylindrical workpiece 500.

[0027] Specifically, the driving device II 241 is fixedly assembled on the upper side elevation of the frame 220 by bolt connection, and its output end is arranged toward the cylindrical workpiece 500; the rear end of the telescopic rod II 242 is assembled and connected to the output end of the driving device II 241, and its front end extends toward the cylindrical workpiece 500 and can be telescoped in the horizontal direction; the shape-keeping wheel 243 is rotatably assembled on the front end of the telescopic rod II 242, and rotates in the horizontal direction to assist the rotation and shape-keeping of the cylindrical workpiece 500.

[0028] The rotating wheel assembly 250 includes a driving device III 251, which is assembled inside the rotating shape-preserving base 210; a telescopic rod III 252, the lower end of which is assembled and connected to the driving device III 251, and the upper end of which extends toward the cylindrical workpiece 500 and can be telescoped in the vertical direction; a support frame 253, which is fixed at the upper end of the telescopic rod III 252 and has a mounting groove on its upper end surface; a driving device IV 254, which is fixed on the side surface of the support frame 253; and a rotating wheel 255, which is rollingly assembled inside the support frame 253 and is used to drive the cylindrical workpiece 500 to rotate and maintain its shape.

[0029] Specifically, the driving device III251 is fixedly assembled on the inside of the rotating shape-preserving base 210 by means of bolt connection, and its output end is arranged toward the cylindrical workpiece 500; the lower end of the telescopic rod III252 is assembled and connected with the output end of the driving device III251, and its upper end extends toward the cylindrical workpiece 500, and can be telescoped in the vertical direction; the supporting frame 253 is fixedly arranged on the upper end of the telescopic rod III252 by welding, and a mounting groove for assembling the rotating wheel 255 is provided on its upper end surface; the driving device IV254 is fixedly arranged on the side elevation of the supporting frame 253 by means of bolt connection, and its output end is arranged toward the rotating wheel 255; the rotating wheel 255 is rollingly assembled on the inside of the supporting frame 253, and is connected to the output end of the driving device IV254 by a rotating shaft, and is used to drive the rotation and shape preservation of the cylindrical workpiece 500 and lift the cylindrical workpiece 500 to the technically required position.

[0030] The marking and dotting unit 300 includes a marking and dotting base 310, which is assembled on the upper part of the slider assembly 150; a steering mechanism 320, which is fixed on the upper part of the marking and dotting base 310; a robot arm I 330, one end of which is assembled and connected to the steering mechanism 320, and the other end extends vertically upward, and can rotate on a horizontal plane through the steering mechanism 320; a robot arm II 340, one end of which is rotatably assembled on the upper end of the robot arm I 330, and the other end extends upward; a robot arm III 350, one end of which is rotatably assembled on the upper end of the robot arm II 340, and the other end extends upward; a driving device V 360, which is assembled on the upper end of the robot arm III 350; a marking and dotting tip 370, which is assembled on the output end of the driving device V 360, and is used to mark and dot the cylindrical workpiece 500.

[0031] Specifically, the marking and dotting base 310 is assembled to the upper part of the slider assembly 150 by bolt connection; the steering mechanism 320 is divided into an inner and outer layer structure, the outer layer structure is fixedly arranged on the upper part of the marking and dotting base 310 by bolt connection, and the inner layer structure is used to achieve the steering effect; one end of the mechanical arm I 330 is assembled and connected with the steering mechanism 320, and the other end extends vertically upward, and can be rotated on the horizontal plane by the steering mechanism 320; one end of the mechanical arm II 340 is rotatably assembled to the upper end of the mechanical arm I 330, and the other end extends upward, and can be rotated on the mechanical arm I 3 30; one end of the robot arm III 350 is rotatably mounted on the upper end of the robot arm II 340, and the other end extends upward and can rotate freely on the robot arm II 340; the driving device V 360 is rotatably mounted on the upper end of the robot arm III 350, and its output end is arranged toward the cylindrical workpiece 500; the rear end of the marking and dotting tip 370 is mounted on the output end of the driving device V 360, and its front end is arranged toward the cylindrical workpiece 500, and the driving device V 360 drives the marking and dotting tip 370 to perform high-speed reciprocating motion to realize marking and dotting of the cylindrical workpiece 500.

[0032] The working process of this embodiment: A method for using a high-strength steel cylinder shape-preserving marking and dotting device comprises the following steps: Step 1. The positioning wheel assembly 230 and the shape-containment wheel assembly 240 are retracted into the frame 220, the rotating wheel assembly 250 is retracted into the rotating shape-containment base 210, and the master control unit 400 is calibrated to set this state as the initial state; Step 2. The master control unit 400 drives the positioning wheel assembly 230 to extend and automatically positions the cylindrical workpiece 500 according to the diameter data; Step 3. The cylindrical workpiece 500 is hoisted onto the rotating wheel assembly 250 by a crane, and the positioning wheel assembly 230 assists in receiving the material, so that the cylindrical workpiece 500 is stably positioned on the rotating shape-preserving unit 200; Step 4. The driving device III 251 drives the telescopic rod III 252 to extend, so that the rotating wheel assembly 250 lifts the cylindrical workpiece 500 to the technically required position; Step 5. The driving device II 241 drives the telescopic rod II 242 to extend, so that the shape-retaining wheel 243 extends and presses against the side wall of the cylindrical workpiece 500; Step 6. The driving device IV 254 drives the rotating wheel 255 to roll, so that the cylindrical workpiece 500 rotates at a constant speed around its own central axis, and the shape-keeping wheel 243 is driven to ensure the cylindricity of the cylindrical workpiece 500 to achieve rotation and shape-keeping; Step 7. The marking and dotting unit 300 moves to the inside or outside of the cylindrical workpiece 500 according to the demand, and the master control unit 400 calculates the position and running trajectory of the marking and dotting tip 370 according to the three-dimensional space coordinates, and marks the corresponding position of the cylindrical workpiece 500 in coordination with the rotation of the cylindrical workpiece 500, or drives the driving device V360 to dot in coordination with the rotation pause of the cylindrical workpiece 500; Step 8. After the marking and dotting operations are completed, the cylindrical workpiece 500 is lifted away from the working area by a crane.

[0033] Features of the present invention: The present invention arranges multiple groups of base units 100 circumferentially on a horizontal plane, and assembles a rotating shape-keeping unit 200 and a marking and dotting unit 300 on each group of base units 100, and a general control unit 400 is fixedly arranged beside the base unit 100, and a cylindrical workpiece 500 is assembled between multiple groups of rotating shape-keeping units 200. In actual use, the general control unit 400 performs automatic control, adjusts the rotating shape-keeping unit 200 according to the diameter size of the cylindrical workpiece 500 to perform positioning, rotation, and shape-keeping operations, and then runs the marking and dotting unit 300 to the inside or outside of the cylindrical workpiece 500 according to demand to perform marking and dotting operations, thereby achieving high-precision marking and dotting of large-sized high-strength steel cylinders. This technical solution replaces the traditional manual measurement method, and the cylindricity of the workpiece is always maintained, effectively improving the marking and dotting accuracy of the large-size high-strength steel cylindrical workpiece 500, meeting the positioning accuracy of subsequent component positioning, installation, welding and other related work. In addition, this device is simple and convenient to operate, and easy to disassemble and maintain, which effectively improves the construction efficiency of workers, thereby reducing the labor intensity and construction risks of workers.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength steel cylinder shape-preserving marking and dotting device, characterized in that: include: Base units (100), multiple groups of which are arranged circumferentially on a horizontal plane, for providing installation and support; Rotating shape-preserving units (200), mounted on the base unit (100) and arranged in a circular array around a construction center; A marking and dotting unit (300), mounted on the base unit (100), for performing positioning, marking and dotting operations; A main control unit (400) is fixedly mounted beside the base unit (100) and is used to control the working states of the rotating shape-preserving unit (200) and the marking and dotting unit (300); and The cylindrical workpiece (500) is assembled between a plurality of groups of the rotating shape-keeping units (200), and shape-keeping is achieved through the symmetrical groups of the rotating shape-keeping units (200), while high-precision and high-efficiency marking and dotting operations are achieved through the marking and dotting units (300).

2. According to claim 1, a high-strength steel cylinder shape-preserving marking and dotting device is characterized in that: The base unit (100) comprises: Track bases (110), multiple groups are arranged on a horizontal plane, one end faces the construction center, and the other end extends outward; A lead screw drive device (120) is mounted on one end of the upper portion of the track base (110); A bearing (130) is fixedly mounted on the other end of the upper portion of the track base (110); A transmission screw (140) is assembled between the screw drive device (120) and the bearing (130); and The slider assembly (150) is sleeved on the periphery of the transmission screw (140) and moves on the transmission screw (140) under the influence of the rotation of the transmission screw (140).

3. According to claim 2, a high-strength steel cylinder shape-preserving marking and dotting device is characterized in that: The rotating shape-preserving unit (200) comprises: A rotating shape-preserving base (210) is mounted on the upper portion of the slider assembly (150), and a mounting groove is formed on the upper end surface of the base; The frame (220) has one end fixedly mounted on one side of the upper portion of the rotating shape-preserving base (210), and the other end extending vertically upward, with a side elevation surface provided with a mounting groove; A positioning wheel assembly (230), one end of which is mounted on the lower part of the side elevation of the frame (220) and the other end of which is arranged toward the cylindrical workpiece (500) and is used to position the cylindrical workpiece (500); a shape-keeping wheel assembly (240), one end of which is mounted on the upper side of the side elevation of the frame (220), and the other end of which is arranged toward the cylindrical workpiece (500); a plurality of groups of the shape-keeping wheel assemblies (240) are arranged in an array along the side elevation of the frame (220) to keep the cylindrical workpiece (500) in shape; and A rotating wheel assembly (250) has one end mounted inside the rotating shape-preserving base (210), and the other end of the rotating wheel assembly (250) can move up and down in a vertical direction, and is used to lift the cylindrical workpiece (500).

4. According to claim 3, a high-strength steel cylinder shape-preserving marking and dotting device is characterized in that: The positioning wheel assembly (230) comprises: A driving device I (231), mounted on the lower part of the side elevation of the frame (220); A telescopic rod I (232), the rear end of which is assembled and connected to the driving device I (231), and the front end of which extends toward the cylindrical workpiece (500), and can be telescopic in the horizontal direction; and The positioning wheel (233) is mounted on the front end of the telescopic rod I (232) and rotates in the vertical direction.

5. According to claim 4, a high-strength steel cylinder shape-preserving marking and dotting device is characterized in that: The conforming wheel assembly (240) comprises: A driving device II (241) is mounted on an upper side elevation of the frame (220); A telescopic rod II (242), the rear end of which is assembled and connected to the driving device II (241), and the front end of which extends toward the cylindrical workpiece (500), and can be telescopic in the horizontal direction; and The shape-retaining wheel (243) is mounted on the front end of the telescopic rod II (242) and rotates in the horizontal direction to assist the rotation and shape-retaining of the cylindrical workpiece (500).

6. A high-strength steel cylinder shape-preserving marking and dotting device according to claim 5, characterized in that: The rotating wheel assembly (250) comprises: A driving device III (251), mounted inside the rotating shape-preserving base (210); A telescopic rod III (252), the lower end of which is assembled and connected to the driving device III (251), and the upper end of which extends toward the cylindrical workpiece (500) and can be telescopic in the vertical direction; A support frame (253) is fixedly mounted on the upper end of the telescopic rod III (252), and a mounting groove is formed on the upper end surface thereof; A driving device IV (254) is fixedly mounted on a side elevation of the support frame (253); and The rotating wheel (255) is rollingly mounted inside the support frame (253) and is used to drive the cylindrical workpiece (500) to rotate and maintain its shape.

7. A high-strength steel cylinder shape-preserving marking and dotting device according to claim 6, characterized in that: The marking and dotting unit (300) comprises: A scribing and dotting base (310) is assembled on the upper part of the slider assembly (150); A steering mechanism (320) is fixedly mounted on the upper portion of the marking and dotting base (310); A mechanical arm I (330), one end of which is assembled and connected to the steering mechanism (320), and the other end of which extends vertically upward and can rotate on a horizontal plane through the steering mechanism (320); A mechanical arm II (340), one end of which is rotatably mounted on the upper end of the mechanical arm I (330), and the other end of which extends upward; A mechanical arm III (350), one end of which is rotatably mounted on the upper end of the mechanical arm II (340), and the other end of which extends upward; A driving device V (360) mounted on the upper end of the mechanical arm III (350); and The marking and dotting tip (370) is mounted on the output end of the driving device V (360) and is used to mark and dot the cylindrical workpiece (500).

8. A method for using a high-strength steel cylinder shape-preserving marking and dotting device, characterized in that ： The high-strength steel cylinder conformal marking and dotting device according to claim 7 comprises the following steps: Step 1. The positioning wheel assembly (230) and the shape-preserving wheel assembly (240) are retracted into the interior of the frame (220), the rotating wheel assembly (250) is retracted into the interior of the rotating shape-preserving base (210), and the master control unit (400) is calibrated to set this state as an initial state; Step 2. The master control unit (400) drives the positioning wheel assembly (230) to extend and automatically positions the cylindrical workpiece (500) according to the diameter data; Step 3. The cylindrical workpiece (500) is hoisted onto the rotating wheel assembly (250) by a crane, and the positioning wheel assembly (230) assists in receiving the material, so that the cylindrical workpiece (500) is stably positioned on the rotating shape-preserving unit (200); Step 4. The driving device III (251) drives the telescopic rod III (252) to extend, so that the rotating wheel assembly (250) lifts the cylindrical workpiece (500) to the technically required position; Step 5. The driving device II (241) drives the telescopic rod II (242) to extend, so that the shape-retaining wheel (243) extends and presses against the side wall of the cylindrical workpiece (500); Step 6. The driving device IV (254) drives the rotating wheel (255) to roll, so that the cylindrical workpiece (500) rotates at a constant speed around its own central axis, and the shape-preserving wheel (243) is driven to ensure the cylindricity of the cylindrical workpiece (500) so as to achieve rotation and shape preservation; Step 7. The marking and dotting unit (300) moves to the inside or outside of the cylindrical workpiece (500) as required, and the master control unit (400) calculates the position and movement trajectory of the marking and dotting tip (370) according to the three-dimensional space coordinates, and marks the corresponding position of the cylindrical workpiece (500) in coordination with the rotation of the cylindrical workpiece (500), or drives the driving device V (360) to dot in coordination with the rotation pause of the cylindrical workpiece (500); Step 8. After the marking and dotting operations are completed, the cylindrical workpiece (500) is lifted away from the working area by a crane.

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