CN211413595U - Upper structure of continuous casting machine - Google Patents
Upper structure of continuous casting machine Download PDFInfo
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- CN211413595U CN211413595U CN201922339111.6U CN201922339111U CN211413595U CN 211413595 U CN211413595 U CN 211413595U CN 201922339111 U CN201922339111 U CN 201922339111U CN 211413595 U CN211413595 U CN 211413595U
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Abstract
The utility model relates to a conticaster superstructure is two three-dimensional markers of diagonal arrangement on two yoke of bale revolving platform, corresponds and arranges fixed profile appearance respectively near receiving package position and casting position, arranges the activity profile appearance that is used for scanning ladle bottom profile near receiving package position. The relative position relation between the ladle down nozzle and the three-dimensional marker is calculated through the cooperation of the three-dimensional marker, the fixed contourgraph and the movable contourgraph of the ladle receiving position, the position of the three-dimensional marker is actually measured through the fixed contourgraph arranged at the casting position, and the relative position relation between the ladle down nozzle and the loading and unloading robot is calculated, so that the loading and unloading robot can automatically load and unload the long nozzle, and the problem that the position of the ladle down nozzle at the casting position cannot be directly measured due to the fact that the ladle down nozzle is in a high-temperature environment is solved.
Description
Technical Field
The utility model belongs to the technical field of the continuous casting, a conticaster superstructure is related to.
Background
After the casting of the continuous casting machine is started, a ladle is placed on a fork arm of a ladle revolving platform by a travelling crane at a ladle receiving position, the ladle is waited to rotate 180 degrees to a casting position by the revolving platform, then an operator aligns a water gap on a long water gap manipulator to a ladle lower water gap, the long water gap manipulator keeps the contact state of the long water gap and the ladle lower water gap, and a sliding water gap is opened to start molten steel casting. And after the ladle molten steel is cast, closing the sliding nozzle, separating the long nozzle manipulator from the ladle lower nozzle by an operator, and rotating the ladle by 180 degrees to reach a ladle receiving position to finish the casting of a ladle of molten steel. The difficulty of loading and unloading long water gaps in the core process is high, the frequency is high, the requirements on the operation skill and the operation time of operators are high, the temperature on a bale operation platform is high, dust is large, the working environment is severe, workers are easy to be injured by labor after carrying out manual operation for a long time, and misoperation is easily caused due to fatigue, so that production accidents are caused.
A method for replacing manual disassembly of a nozzle is to use a robot to automatically assemble and disassemble a long nozzle, and the key technology is to measure the position of a ladle nozzle to guide the robot to assemble and disassemble the long nozzle below the long nozzle.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a conticaster superstructure can solve prior art's partial defect at least.
The utility model relates to a conticaster superstructure, including the bale revolving platform and arrange the loading and unloading robot that is used for loading and unloading the long mouth of a river on bale operation platform, the bale revolving platform has and receives a packet position and casting position, is provided with first three-dimensional marker respectively and these two first three-dimensional markers are the diagonal and arrange on two yoke arms of bale revolving platform, corresponds near receiving packet position and casting position near arranging the first fixed profile appearance that can scan first three-dimensional marker respectively, and near receiving packet position arranges the activity profile appearance that is used for scanning ladle bottom profile.
As one embodiment, a scanning robot is arranged near the bag receiving position, and the movable profiler is installed at the tail end of the arm of the scanning robot.
In one embodiment, an inspection platform is configured on one side of the receiving position, and the movable profiler and the first fixed profiler on the corresponding side are both arranged on the inspection platform.
As one embodiment, the first three-dimensional marker adopts a 2D laser range finder with a pan-tilt control, a binocular three-dimensional camera, a structured light camera or a 3D laser camera; the active profiler adopts a 2D laser range finder, a binocular stereo camera, a structured light camera or a 3D laser camera.
As one embodiment, the two forks of the bale rotary table are respectively provided with a second three-dimensional marker, the two second three-dimensional markers are arranged in a diagonal line, and a second fixed profiler capable of scanning the second three-dimensional markers is respectively arranged near the bale receiving position and the casting position.
In one embodiment, the first three-dimensional marker is disposed at the front end of one of the fingers of the corresponding prong, and the second three-dimensional marker is disposed at the side of the other finger of the corresponding prong.
As one embodiment, the second stereoscopic marker is a 2D laser range finder with a pan-tilt control, a binocular stereoscopic camera, a structured light camera, or a 3D laser camera.
As one embodiment, the continuous casting machine upper structure further includes a number acquisition unit for acquiring a ladle number.
The utility model discloses following beneficial effect has at least:
the utility model discloses an arrange first three-dimensional marker on the yoke of bale revolving platform, it arranges activity profile appearance and first fixed profile appearance to correspond near receiving the package position, calculate the relative position relation between mouth of a river and the first three-dimensional marker under the ladle, through the position of the first fixed profile appearance actual measurement this first three-dimensional marker that arranges near the casting position and calculate the mouth of a river under the ladle and the relative position relation between the loading and unloading robot, thereby can realize the long mouth of a river of loading and unloading robot auto-control, the problem of the unable direct measurement position in high temperature environment in the mouth of a river under the casting position ladle has been solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an upper structure of a continuous casting machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another continuous caster superstructure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the present invention provides a continuous casting machine superstructure, including a bale rotary table 1 and a loading and unloading robot 3 arranged on a bale operation platform and used for loading and unloading a long nozzle, the bale rotary table 1 has a bale receiving position and a casting position, two forks of the bale rotary table 1 are respectively provided with a first three-dimensional marker 51, and the two first three-dimensional markers 51 are arranged diagonally, corresponding to a first fixed profiler 52 capable of scanning the first three-dimensional marker 51 is arranged near the bale receiving position and near the casting position, and a movable profiler 4 used for scanning the bottom profile of a ladle 2 is arranged near the bale receiving position.
The bale rotary table 1 and the loading and unloading robot 3 are conventional devices in the field, and the specific structure is not described herein. In general, the ladle and casting stations are arranged symmetrically with respect to the axis of rotation of the turret 1, i.e. the turret 1 needs to be rotated 180 ° from the ladle to the casting station and from the casting station to the ladle station. The casting position is positioned right above the continuous casting tundish, so that the position of a ladle down nozzle is not convenient to detect from the lower part of the casting position.
The bale rotary table 1 generally comprises two fork arms which are respectively positioned at two ends of the bale rotary table 1 and can bear the ladles 2. The yoke generally comprises two fingers 11, two ear bearings of the ladle 2 are supported on the tops of the two fingers 11, and the two fingers 11 enclose a U-shaped groove to be matched with the side wall of the ladle 2.
In one embodiment, the first three-dimensional marker 51 is arranged at the front end of one of the fingers 11; in a further embodiment, the first three-dimensional marker 51 is arranged on a side of one of the fingers 11. It will be readily appreciated that the position of the first fixed profiler 52 is readily set by one skilled in the art, in accordance with the above requirements that the first fixed profiler 52 can scan the first spatial marker 51; taking the case that the first three-dimensional marker 51 is arranged at the front end of the finger 11 as an example, it is preferable that the first fixed profiler 52 at the wrapped position side is directly opposite to the first three-dimensional marker 51 on the finger 11 at the wrapped position; taking the case where the receiving site side first three-dimensional marker 51 is arranged on the corresponding side left-hand finger 11 as an example, the casting site side first three-dimensional marker 51 is arranged on the corresponding side right-hand finger 11. Since the two first three-dimensional markers 51 are arranged diagonally, the two first three-dimensional markers 51 can be scanned by the first fixed profiler 52 on the corresponding side, whether in the packing position or in the casting position.
It is easy to understand that the above-mentioned movable profiler 4 can be movable relative to the ladle turret 1 or relative to the ladle 2 on the ladle turret 1, so that it can be moved to the position below the ladle 2 to scan the bottom profile of the ladle 2 and can be moved away from the position below the ladle 2, on one hand, the flexibility is high, it is convenient to accurately scan and detect the position profile of the ladle down nozzle, it can adapt to the position detection of the ladle down nozzle with different casting times, on the other hand, the movable profiler 4 can be better protected, for example, the movable profiler 4 can be prevented from being lost by residual molten steel and steel slag at the bottom of the ladle 2 after casting. Regarding the mobility of the movable profiler 4, in the embodiment, the mobile profiler is realized by a robot, that is, the scanning robot 4 is arranged near the ladle receiving position, the movable profiler 4 is installed at the tail end of the arm of the scanning robot 4, the flexibility is high, the response speed is high, the work repeatability is high, the space positioning of the movable profiler 4 is accurate, and the accuracy and the reliability of the ladle drain port position detection structure can be ensured.
It is further preferred to construct an inspection platform on the side of the receiving site, on which the movable profiler 4 and the corresponding first fixed profiler 52 are mounted, in particular to facilitate the above-mentioned arrangement of the scanning robot 4. In addition, the detection platform can be configured to be used for assembling and disassembling the ladle sliding gate oil cylinder by an operator, used for maintaining and overhauling the ladle rotary table 1 and the like.
In an alternative embodiment, the first fixed profiler 52 may be a 2D laser range finder with a pan-tilt control, a binocular stereo camera, a structured light camera, or a 3D laser camera, and the movable profiler 4 may be a 2D laser range finder, a binocular stereo camera, a structured light camera, or a 3D laser camera.
In the embodiment, the first three-dimensional marker 51 is arranged on the fork arm of the ladle turret 1, the movable profiler 4 and the first fixed profiler 52 are correspondingly arranged near the ladle receiving position, the relative position relation between the ladle nozzle and the first three-dimensional marker 51 is calculated, the position of the first three-dimensional marker 51 is actually measured by the first fixed profiler 52 arranged near the casting position, and the relative position relation between the ladle nozzle and the loading and unloading robot 3 is calculated, so that the loading and unloading robot 3 can automatically load and unload the long nozzle, and the problem that the ladle nozzle cannot directly measure the position due to being in a high-temperature environment at the casting position is solved.
Further optimizing the above embodiment, as shown in fig. 2, the two forks of the bale rotary table 1 are respectively provided with a second three-dimensional marker 61, the two second three-dimensional markers 61 are arranged in diagonal lines, and a second fixed profiler 62 capable of scanning the second three-dimensional markers 61 is respectively arranged near the bale receiving position and the casting position. The diagonal arrangement of the two second stereoscopic markers 61 and the arrangement of the second fixed profilers 62 can be referred to the arrangement of the first stereoscopic marker 51 and the first fixed profiler 52 described above, which is omitted here. It will be understood that it is better to arrange the first three-dimensional marker 51 separately from the second three-dimensional marker 61, for example on the two fingers 11 of the corresponding side fork arm; furthermore, as shown in fig. 2, the first three-dimensional marker 51 is disposed at the front end of one of the fingers 11 of the corresponding prong, and the second three-dimensional marker 61 is disposed at the side of the other finger 11 of the corresponding prong, so that the detection result accuracy and reliability are higher.
By further arranging the second three-dimensional marker 61 and the second fixed profiler 62, the accuracy of the detection result of the position of the ladle drain nozzle can be improved, and the loading and unloading robot 3 can be ensured to smoothly and automatically load and unload the long drain nozzle.
Likewise, the second fixed profiler 62 may employ a 2D laser range finder with pan-tilt control, a binocular stereo camera, a structured light camera, or a 3D laser camera.
In one embodiment, the first three-dimensional marker 51 and the second three-dimensional marker 61 can both adopt the following structures: a group of hemispherical bulges distributed in an array are arranged on the corresponding plane plate, the position of the marker is represented by the position of the spherical center of one hemispherical bulge (which can also be understood as the center of a projection of the hemispherical bulge on the plane plate), and the position matching degree of the marker and the fixed profiler is high due to the hemispherical bulges distributed in the array. Of course, other planar or three-dimensional patterns with regular feature points and known feature point position relationship are also suitable for the present embodiment, such as a black-and-white chess board or a three-dimensional calibration board with colors.
Further optimizing the above embodiment, the upper structure of the continuous casting machine further comprises a number acquisition unit for acquiring the number of the ladle, the number acquisition unit can adopt an industrial camera photographing mode and also can adopt a mode that an RFID card reader is matched with an RFID tag arranged on the ladle 2, and the specific installation structure is not unfolded here. The ladle down nozzle position detection result can be calibrated through the historical data of the ladle 2 corresponding to the serial number, the accuracy of the ladle down nozzle position detection result is improved, the state of the ladle turret 1 can be diagnosed, whether the ladle turret 1 has potential safety hazards or not is judged, the potential safety hazards of the ladle turret 1 are eliminated to a certain extent, and the operation safety of a continuous casting machine can be improved.
The embodiment of the utility model provides a still relate to long mouth of a river automatic handling method based on foretell conticaster superstructure, including following step:
calculating a relation matrix RA1 between the coordinate system of the movable profiler 4 and the coordinate system of the first fixed profiler 52 at the casting position side through a hand-eye calibration algorithm, and calculating a relation matrix RA2 between the coordinate system of the loading and unloading robot 3 and the coordinate system of the first fixed profiler 52 at the casting position side through a hand-eye calibration algorithm;
after the ladle 2 is placed on the ladle receiving position fork arm, the first fixed contourgraph 52 at the ladle receiving position side acquires the profile data of the first three-dimensional marker 51 at the corresponding side, and the relative position information D1 between the first fixed contourgraph 52 at the ladle receiving position side and the first three-dimensional marker 51 at the corresponding side is calculated; acquiring profile data of the bottom of the ladle 2 through the movable profiler 4, and calculating relative position information D2 between a ladle down nozzle and the movable profiler 4;
calculating relative position information D3 between the ladle drain nozzle and the adjacent first three-dimensional marker 51 based on RA1 and D1 and D2;
after the ladle turret 1 rotates the ladle 2 to the casting position, the first casting position side fixed profiler 52 acquires profile data of the corresponding side first three-dimensional marker 51 (obviously, the first three-dimensional marker 51 is the same as the first three-dimensional marker 51 scanned by the first ladle position side fixed profiler 52 before), and calculates relative position information D4 between the first casting position side fixed profiler 52 and the corresponding side first three-dimensional marker 51;
and calculating relative position information D00 between the loading and unloading robot 3 and the ladle nozzle based on RA2, D3 and D4, and guiding the motion path of the loading and unloading robot 3 according to D00 to finish the operation of installing and detaching the ladle nozzle.
Further preferably, in an embodiment where the two forks of the bale turret 1 are respectively provided with a second three-dimensional marker 61, the method further comprises:
calculating a relation matrix RA3 between the coordinate system of the movable profiler 4 and the coordinate system of the second fixed profiler 62 at the casting position side through a hand-eye calibration algorithm, and calculating a relation matrix RA4 between the coordinate system of the loading and unloading robot 3 and the coordinate system of the second fixed profiler 62 at the casting position side through the hand-eye calibration algorithm;
after the ladle 2 is placed on the ladle receiving position fork arm, the second fixed contourgraph 62 at the ladle receiving position side acquires the profile data of the second three-dimensional marker 61 at the corresponding side, and the relative position information D5 between the second fixed contourgraph 62 at the ladle receiving position side and the second three-dimensional marker 61 at the corresponding side is calculated;
calculating relative position information D6 between the ladle drain nozzle and the adjacent second three-dimensional marker 61 based on RA3 and D2 and D5;
after the ladle turret 1 rotates the ladle 2 to the casting position, the second fixed profiler 62 at the casting position side acquires profile data of the second three-dimensional marker 61 at the corresponding side, and relative position information D7 between the second fixed profiler 62 at the casting position side and the second three-dimensional marker 61 at the corresponding side is calculated;
based on RA2, RA4, D3, D4, D6 and D7, calculating relative position information D01 between the loading and unloading robot 3 and the ladle nozzle, and guiding the action path of the loading and unloading robot 3 according to D01 to complete the operation of installing and detaching the ladle nozzle;
alternatively, the relative position information D00' between the handling robot 3 and the ladle nozzle is calculated based on RA4 and D6 and D7, and mutual calibration is performed between D00' and D00, or an alternative operation path of the handling robot 3 is provided according to D00 '.
Further preferably, in the above embodiment further provided with a number obtaining unit, the method further includes:
storing the D3 data calculated each time corresponding to the ladle number;
after the ladle 2 is placed on the ladle receiving position fork arm, the ladle number of the ladle 2 is obtained, the current D3 calculation is calibrated through the historical D3 data corresponding to the ladle 2, whether the current D3 data is in a normal range is judged, and if not, the calculation is repeated.
Further, the method further comprises:
correspondingly storing each calculated relative position information and the ladle number;
comparing each piece of currently obtained relative position information with historical information, diagnosing the state of the bale rotary table 1, and judging whether the bale rotary table 1 has potential safety hazards in working, wherein the state of the bale rotary table 1 comprises but is not limited to a fork arm levelness state and a rotary angle in-place state, the fork arm levelness state comprises a levelness situation in the length direction of the bale rotary table 1 and a levelness situation in the width direction of the bale rotary table 1, and the levelness situation diagnosis in the length direction of the bale rotary table 1 is of great significance for preventing the bale rotary table 1 from being toppled.
In the method, the calculation algorithm of each piece of relative position information based on the scanning result of each profiler on the marker is a conventional algorithm in the application field of the profilers, and no additional programming is needed; generally, for iron and steel enterprises, the profilers are all purchased devices, and the calculation can be completed in a profiler self controller.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a conticaster superstructure, includes bale revolving platform and arranges the loading and unloading robot that is used for loading and unloading long mouth of a river on bale operation platform, the bale revolving platform has and receives package position and casting position, its characterized in that: the ladle turret is characterized in that first three-dimensional markers are respectively arranged on two fork arms of the ladle turret and are arranged in a diagonal manner, first fixed contourgraph capable of scanning the first three-dimensional markers are respectively arranged near the ladle receiving position and the casting position correspondingly, and a movable contourgraph used for scanning the outline of the bottom of the ladle is arranged near the ladle receiving position.
2. The continuous caster superstructure as claimed in claim 1, characterized in that: a scanning robot is arranged near the bag receiving position, and the movable profiler is installed at the tail end of an arm of the scanning robot.
3. The continuous caster superstructure as claimed in claim 1, characterized in that: and a detection platform is constructed on one side of the packet receiving position, and the movable contourgraph and the first fixed contourgraph on the corresponding side are arranged on the detection platform.
4. The continuous caster superstructure as claimed in claim 1, characterized in that: the first three-dimensional marker adopts a 2D laser range finder with holder control, a binocular three-dimensional camera, a structured light camera or a 3D laser camera; the active profiler adopts a 2D laser range finder, a binocular stereo camera, a structured light camera or a 3D laser camera.
5. The continuous caster superstructure as claimed in claim 1, characterized in that: and second three-dimensional markers are respectively arranged on the two fork arms of the bale rotary table and are arranged in a diagonal manner, and second fixed contourgraph capable of scanning the second three-dimensional markers are respectively arranged near the bale receiving position and the casting position correspondingly.
6. The continuous caster superstructure as claimed in claim 5, characterized in that: the first three-dimensional marker is arranged at the front end of one interdigital of the corresponding fork arm, and the second three-dimensional marker is arranged at the side edge of the other interdigital of the corresponding fork arm.
7. The continuous caster superstructure as claimed in claim 5, characterized in that: the second three-dimensional marker adopts a 2D laser range finder, a binocular three-dimensional camera, a structured light camera or a 3D laser camera with holder control.
8. The continuous caster superstructure as claimed in claim 1, characterized in that: the device also comprises a number acquisition unit for acquiring the ladle number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339111.6U CN211413595U (en) | 2019-12-24 | 2019-12-24 | Upper structure of continuous casting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922339111.6U CN211413595U (en) | 2019-12-24 | 2019-12-24 | Upper structure of continuous casting machine |
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| CN211413595U true CN211413595U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976839A (en) * | 2019-12-24 | 2020-04-10 | 中冶南方工程技术有限公司 | Upper structure of continuous casting machine and automatic loading and unloading method of long nozzle |
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2019
- 2019-12-24 CN CN201922339111.6U patent/CN211413595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976839A (en) * | 2019-12-24 | 2020-04-10 | 中冶南方工程技术有限公司 | Upper structure of continuous casting machine and automatic loading and unloading method of long nozzle |
| CN110976839B (en) * | 2019-12-24 | 2021-06-11 | 中冶南方工程技术有限公司 | Upper structure of continuous casting machine and automatic loading and unloading method of long nozzle |
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