Continuous casting roller inner hole surfacing welding machine
The continuous casting roll inner hole welding machine, which integrates positioning and welding mechanisms, solves the problem of difficult-to-clean welding slag, ensures welding quality and cooling efficiency, and reduces maintenance costs.
Patent Information
- Application Number
- CN202522332002.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-11-04
AI Technical Summary
The weld slag remaining after welding the inner hole of the existing continuous casting roll is difficult to clean completely, which affects cooling efficiency and increases maintenance costs.
A continuous casting roll inner hole surfacing machine was designed, comprising a positioning mechanism and a surfacing mechanism. The positioning mechanism positions the inner hole of the continuous casting roll and drives it to rotate. Combined with the extension rod and cleaning plate, the surfacing and cleaning operations are integrated. The brush bristles form an angle with the inner hole wall for cleaning, ensuring the thorough removal of slag.
This ensures the quality of the weld overlay and maintains the inner hole size, avoids obstruction of the cooling medium flow, extends the service life of the continuous casting roll, reduces the need for manual cleaning, and lowers maintenance costs.
Smart Images
Figure CN223656379U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding equipment technical field, specifically, it relates to continuous casting roll inner hole surfacing machine. BACKGROUND
[0002] Continuous casting roll is the core component in steel continuous casting production, and an inner hole structure for cooling is usually arranged in the continuous casting roll. In the long-term working environment of high temperature and high pressure, the inner hole surface of the continuous casting roll is prone to wear, corrosion or crack and other damages, and the surface needs to be repaired and strengthened through surfacing technology to prolong the service life of the continuous casting roll and reduce the equipment replacement cost.
[0003] At present, the equipment for the inner hole surfacing of the continuous casting roll in the prior art cannot thoroughly clean the residual surfacing slag after the surfacing operation is completed due to the narrow space and deep depth of the inner hole of the continuous casting roll, and the residual surfacing slag is mostly attached to irregular areas, and the conventional cleaning tools (such as scrapers and brushes) cannot be deeply contacted.
[0004] The residual surfacing slag can change the actual size and surface flatness of the inner hole, which not only affects the flow efficiency of the subsequent cooling medium, but also can cause local overheating when the continuous casting roll works again, and aggravate the damage of the inner hole.
[0005] At the same time, in order to clean the surfacing slag as much as possible, a large amount of manual operation is required, which not only takes a long time, but also cannot guarantee the cleaning effect, and further increases the maintenance cost of the continuous casting roll. UTILITY MODEL CONTENTS
[0006] In order to overcome the above defects, the embodiments of the utility model provide the continuous casting roll inner hole surfacing machine, which solves the technical problem that a large amount of surfacing slag is easily left in the inner hole of the roll body after the surfacing machine in the prior art completes the surfacing operation of the inner hole of the continuous casting roll, and the inner hole is difficult to be thoroughly cleaned.
[0007] According to one aspect, at least one embodiment of the utility model provides a continuous casting roll inner hole surfacing machine, which comprises:
[0008] A workbench is provided with a positioning mechanism and a surfacing mechanism adjacent to each other on the workbench, the positioning mechanism is used for positioning the inner hole of the continuous casting roll towards the surfacing mechanism and driving the continuous casting roll to rotate around the axis line thereof; and the surfacing mechanism comprises:
[0009] A transverse sliding frame is transversely and slidingly connected to the workbench and located on the adjacent side of the positioning mechanism;
[0010] A penetrating rod is connected to one end of the transverse sliding frame close to one end of the positioning mechanism, and the penetrating rod can penetrate into the inner hole of the continuous casting roll under the sliding driving of the transverse sliding frame;
[0011] A surfacing head is arranged at the other end of the penetrating rod and used for surfacing the inner hole of the continuous casting roll.
[0012] A cleaning plate is arranged on the insertion rod, and the bottom surface of the cleaning plate is provided with a plurality of downward extending bristles, the arrangement direction of the bristles forms an angle with the length direction of the insertion rod, and the bristles are used to contact the inner hole wall of the continuous casting roller to clean the surfacing slag in the inner hole of the continuous casting roller when the continuous casting roller rotates.
[0013] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, a sliding cavity with a downward opening is arranged in the insertion rod, the cleaning plate is slidingly connected in the sliding cavity, and the bristles can be in contact with or separated from the inner hole wall of the continuous casting roller under the lifting of the cleaning plate.
[0014] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, a telescopic driving element is arranged on the side of the insertion rod away from the cleaning plate, and the telescopic end of the telescopic driving element is connected with the cleaning plate and used to drive the cleaning plate to slidingly lift in the sliding cavity.
[0015] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, one end of the insertion rod is rotationally connected to the end of the transverse sliding frame close to the positioning mechanism, and the surfacing head can adjust the surfacing angle under the rotation of the insertion rod.
[0016] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, the transverse sliding frame is vertically slidingly connected to the workbench.
[0017] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, a limiting strip is detachably arranged on the inner wall of the sliding cavity opening, and the limiting strip is used to abut against the telescopic end of the telescopic driving element to limit the sliding distance of the cleaning plate.
[0018] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, a material collecting box is slidingly connected to the workbench, and the material collecting box is used to collect the surfacing slag falling from the inner hole of the continuous casting roller.
[0019] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, the cleaning plate is detachably connected to the telescopic end of the telescopic driving element.
[0020] For example, in the continuous casting roller inner hole surfacing machine provided by at least one embodiment of the utility model, the positioning mechanism comprises:
[0021] A mounting seat is arranged on the workbench;
[0022] A chuck is rotationally connected to the mounting seat and used to position the continuous casting roller;
[0023] A rotation drive component, mounted on the mounting base, is used to drive the chuck to rotate the continuous casting roll.
[0024] For example, the continuous casting roll inner hole overlay welding machine provided in at least one embodiment of this utility model further includes:
[0025] A rotary table is provided on the worktable, and a positioning mechanism is provided on the rotary table.
[0026] The beneficial effects of the embodiments of this utility model are as follows:
[0027] In this invention, by placing the positioning mechanism and the welding mechanism adjacent to each other on the worktable, and by using the positioning mechanism to position the inner hole of the continuous casting roller toward the welding mechanism and drive the continuous casting roller to rotate around its own axis, the extension rod can be accurately aligned with the inner hole, avoiding collision with the hole wall when it is inserted. At the same time, the uniform rotation of the continuous casting roller provides circumferential uniform welding conditions for the welding head, effectively ensuring the welding quality and preventing uneven welding caused by positioning deviation.
[0028] By using the design of the transverse sliding frame in the welding mechanism to slide laterally to the worktable and drive the extension rod in and out of the inner hole, there is no need to set up an independent mechanism to drive the extension rod to move, which simplifies the overall structure of the equipment. Furthermore, the welding head and cleaning plate are set on the extension rod at the same time, so that welding and slag removal are completed through the movement of the same extension rod, eliminating the step of disassembling the continuous casting roll for separate slag removal after welding, which greatly shortens the operation cycle.
[0029] By using a design where the brush bristles on the bottom of the cleaning plate form an angle with the length of the extension rod, and in conjunction with the rotation of the continuous casting roller, the brush bristles can generate a lateral cleaning force on the weld slag in irregular areas of the hole wall. This solves the problem that conventional tools cannot clean deeply, ensuring that the weld slag is completely removed. This, in turn, guarantees the inner hole size and flatness, avoids obstruction of cooling medium flow and local overheating, extends the life of the continuous casting roller, and reduces repeated manual cleaning, thereby lowering maintenance costs. It is both practical and economical. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0031] Figure 1 This is a schematic diagram of the structure of the continuous casting roll inner hole overlay welding machine in one embodiment of the present invention;
[0032] Figure 2 for Figure 1 A schematic diagram of the welding mechanism in the embodiment;
[0033] Figure 3 Figure 1 is a schematic view of the welding mechanism in the embodiment of the present application; Figure 1 Figure 2 is a schematic view of the welding mechanism in the embodiment of the present application;
[0034] Figure 4 Figure 3 is a schematic view of the welding mechanism in the embodiment of the present application; Figure 3 Figure 4 is an enlarged view of A in Figure 3.
[0035] In the figure: 100, continuous casting roller, 1, workbench, 2, positioning mechanism, 3, welding mechanism, 31, transverse sliding frame, 32, extension rod, 33, welding head, 34, cleaning plate, 341, brush, 321, sliding cavity, 35, telescopic driving element, 322, limiting strip, 4, material collecting box, 21, mounting seat, 22, chuck, 23, rotating driving element, 24, indexing machine. DETAILED DESCRIPTION
[0036] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application.
[0037] In order to make the drawing simple, only the parts related to the disclosure are schematically shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this text, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0038] In this text, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0040] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0042] This embodiment relates to the field of welding equipment technology and is applied to the repair of the inner bore of continuous casting rolls in steel continuous casting production. In the steel continuous casting process, the continuous casting roll is a core component, and its inner bore is used to circulate cooling media to maintain the operating temperature. However, under long-term high-temperature and high-pressure environments, the surface of the inner bore is prone to wear, corrosion, or cracks, requiring repair through welding. Existing welding equipment, after operation, leaves the inner bore with narrow space and great depth, making it difficult to clean residual welding slag, affecting cooling efficiency and increasing maintenance costs. This embodiment solves these problems.
[0043] like Figure 1 As shown, the continuous casting roll inner hole surfacing machine includes a worktable 1. The worktable 1 serves as the basic load-bearing structure, providing stable support for the entire equipment. Its flat surface ensures the positional accuracy of each component after installation, reducing operational errors caused by unstable foundations. A positioning mechanism 2 and a surfacing mechanism 3 are arranged adjacent to each other on the worktable 1, and a receiving box 4 is slidably connected to it.
[0044] The positioning mechanism 2 is used for positioning and rotating the continuous casting roll 100. It includes a rotary indexer 24, a mounting base 21, a chuck 22, and a rotation drive component 23. The rotary indexer 24 is fixed on the worktable 1, and the mounting base 21 is connected to the rotating platform of the rotary indexer 24. The rotary indexer 24 can drive the mounting base 21 to rotate around the vertical axis. This design allows the orientation of the inner hole of the continuous casting roll 100 to be flexibly adjusted, and it can be aligned with the welding mechanism 3 without manual handling, reducing the intensity of manual labor. At the same time, the angle locking function of the rotary indexer can ensure the stability of the position after adjustment and improve the alignment accuracy.
[0045] The chuck 22 is connected to the top of the mounting base 21 through a rotating bearing, and the circumferential clamping claws thereof can be radially moved to adapt to the end of the continuous casting roller with different diameters, realize stable clamping, avoid the deviation of the continuous casting roller during operation, ensure the coaxiality of rotation, and provide a basis for uniform surfacing. The rotating drive member 23 is installed on the side surface of the mounting base 21, and the output shaft is connected with the chuck 22 through a shaft coupling, so that the continuous casting roller 100 can be driven to rotate around the axis thereof. The power transmission is direct and efficient, the rotation speed can be accurately controlled, the requirements of different surfacing processes on the rotation speed are met, and the stable rotation also provides a uniform circumferential movement basis for subsequent slag cleaning operation.
[0046] The surfacing mechanism 3 is used for inner hole surfacing and slag cleaning, and includes a transverse sliding frame 31, an insertion rod 32, a surfacing head 33 and a cleaning plate 34. The transverse sliding frame 31 is matched with the guide rail on the workbench 1 through a sliding block, can slide transversely along the axis direction of the continuous casting roller 100, and can also vertically slide in the vertical direction. The vertical sliding can adjust the overall height according to the installation height of the continuous casting roller 100, ensure that the surfacing head 33 is aligned with the center of the inner hole, and avoid the uneven surfacing caused by the height deviation; the transverse sliding drives the insertion rod 32 to accurately enter and exit the inner hole, replaces manual pushing, reduces the operation error, and the combination of the two greatly improves the adaptability of the equipment to different specifications of the continuous casting roller. The insertion rod 32 is connected to the transverse sliding frame 31 through a rotating structure at one end, can rotate around the shaft, so that the surfacing head 33 can adjust the angle, adapt to the inclined or locally damaged area of the inner hole wall, and ensure the completeness of the surfacing coverage, without the need to replace the surfacing head to cope with different damage forms.
[0047] The surfacing head 33 is arranged at the other end of the insertion rod 32 and is used for outputting welding material. The fixed connection between the surfacing head 33 and the insertion rod ensures the position stability during the surfacing process and improves the surfacing precision. The cleaning plate 34 is arranged on the insertion rod 32, and the bottom bristles 341 form an included angle with the length direction of the insertion rod. When the insertion rod 32 gradually drives the surfacing head 33 to enter the inner hole of the continuous casting roller 100, the bristles can effectively contact the inner hole wall when the continuous casting roller rotates. The included angle design enables the bristles to be in inclined contact with the surfacing slag generated in the continuous casting roller 100, so as to gradually clean and guide the surfacing slag to be discharged from the inner hole of the continuous casting roller 100; at the same time, the bristles can generate a transverse cleaning force on the surfacing slag in the irregular area, solve the problem that the conventional tools cannot be deeply cleaned, and ensure that the surfacing slag is completely cleaned out.
[0048] The material collecting box 4 is matched with the sliding groove of the workbench 1 through a pulley, the direction of the sliding groove is consistent with the axis of the continuous casting roller, the material collecting box 4 can be slid to be directly below the opening of the inner hole, directly receive the cleaned surfacing slag, avoid the scattering and pollution of the equipment or the workbench, reduce the subsequent cleaning workload, keep the operation environment clean, and the sliding design makes the material collecting box convenient to take and place, and improves the operation efficiency.
[0049] As Figure 2As shown, the telescopic driving member 35 is fixedly installed on the side of the extension rod 32 away from the cleaning plate 34, the fixed end of the telescopic driving member 35 is connected with the outer wall of the extension rod 32, and the telescopic end penetrates through the wall of the extension rod 32 and is fixedly connected with the side of the cleaning plate 34 away from the bristles 341. The telescopic driving member 35 provides automatic lifting power for the cleaning plate 34, replacing manual adjustment, which not only improves the operation efficiency, but also accurately adjusts the extension length of the bristles 341 by controlling the telescopic amount, avoids the inconsistent contact pressure of the bristles 341 and the inner hole wall caused by uneven force during manual adjustment, and ensures the stable slag removal effect; optionally, the telescopic driving member 35 can adopt a pneumatic cylinder or an electric push rod, and the linear power output characteristic can better adapt to the lifting demand of the cleaning plate 34.
[0050] Further, as shown in Figure 3 The extension rod 32 is internally provided with a downwardly open sliding cavity 321, and the outer wall of the cleaning plate 34 is attached to the inner wall of the sliding cavity 321 to form a lifting sliding fit. The sliding cavity 321 provides a dedicated sliding path for the cleaning plate 34, limits its movement direction, avoids deviation of the cleaning plate 34 during sliding, and ensures the accuracy of the contact position of the bristles 341 and the inner hole wall; at the same time, during the surfacing operation stage, the cleaning plate 34 can slide upward along the sliding cavity 321, so that the bristles 341 are withdrawn into the sliding cavity 321, avoiding interference of the bristles 341 with the welding material output of the surfacing head 33 or damage by high temperature in the surfacing process, prolonging the service life of the bristles 341; the switching between surfacing and slag removal states can be realized without disassembling the cleaning plate 34, simplifying the operation process.
[0051] As shown in Figure 4 The inner wall of the opening of the sliding cavity 321 is detachably provided with a limiting strip 322, and the limiting strip 322 extends transversely to the inner side of the sliding cavity 321. When the telescopic end of the telescopic driving member 35 drives the cleaning plate 34 to slide downward, the side of the telescopic end of the telescopic driving member 35 away from the cleaning plate 34 will abut against the side of the limiting strip 322 close to the telescopic driving member 35, thereby limiting the cleaning plate 34 from continuing to slide downward. This design can avoid excessive downward movement of the cleaning plate 34, which may cause excessive contact pressure of the bristles 341 and the inner hole wall, resulting in damage of the bristles 341 or scratching of the inner hole wall of the continuous casting roller 100, protecting the equipment parts and the continuous casting roller 100; at the same time, the detachable design of the limiting strip 322 allows replacement of limiting strips 322 of different lengths or thicknesses according to the diameter of the inner hole of the continuous casting roller 100, ensuring that the inner hole wall of different sizes can maintain appropriate contact pressure with the bristles 341, improving the versatility of the equipment; optionally, the limiting strip 322 can be fixed in the mounting groove by bolts or buckles, which is convenient to disassemble and assemble.
[0052] In addition, the cleaning plate 34 is detachably connected with the telescopic end of the telescopic driving member 35, for example, through a connecting flange and a bolt, or in the form of a clamping groove. When the bristles 341 are worn out after long-term use, or when the bristles 341 need to be replaced according to the hardness of the surfacing slag, the cleaning plate 34 can be separated from the telescopic driving member 35 by only unscrewing the bolt, and the whole extension rod 32 does not need to be replaced after the new cleaning plate 34 is assembled, which greatly reduces the maintenance cost; and the disassembly process does not require professional tools and is simple to operate, which shortens the equipment downtime.
[0053] The working process of the scheme described in the embodiment is as follows: aligning one end of the continuous casting roller 100 to be repaired with the clamping jaw of the chuck 22, controlling the radial movement of the clamping jaw of the chuck 22 to clamp the end of the continuous casting roller 100; starting the index table 24, the index table 24 drives the mounting seat 21 and the continuous casting roller 100 to rotate around the axis perpendicular to the workbench 1 until the inner hole of the continuous casting roller 100 faces the surfacing mechanism 3; then the index table 24 locks the rotating platform to keep the orientation of the continuous casting roller 100 stable. Through the stable clamping of the chuck 22 and the accurate adjustment of the index table 24, this process ensures the reliable positioning of the continuous casting roller 100, which lays a foundation for the subsequent surfacing and slag cleaning operations.
[0054] According to the diameter and installation height of the continuous casting roller 100, the transverse sliding frame 31 is controlled to slide vertically to adjust the overall height of the extension rod 32, the surfacing head 33 and the cleaning plate 34, so that the surfacing head 33 can be close to the inner hole wall of the continuous casting roller 100 by sliding; if there is a locally inclined damaged area on the inner hole wall of the continuous casting roller 100, the extension rod 32 can be rotated around the connecting shaft of the extension rod 32 and the transverse sliding frame 31 to adjust the surfacing angle of the surfacing head 33, so that it is aligned with the damaged area; at the same time, the material collecting box 4 is slid along the sliding groove on the workbench 1 to be directly below the opening of the inner hole of the continuous casting roller 100, ready to collect the surfacing slag. These adjustments are realized through mechanical structures, replacing manual alignment, which not only improves the adjustment efficiency, but also ensures the alignment accuracy.
[0055] The control transverse sliding frame 31 slides along the transverse direction, drives the extension rod 32 to move to the direction of the inner hole of the continuous casting roller 100, until the surfacing head 33 reaches the area to be surfaced in the inner hole; the rotating drive 23 is started, the rotating drive 23 drives the chuck 22 to rotate through the shaft coupling, and then drives the continuous casting roller 100 to rotate uniformly around its own axis; the surfacing head 33 is started, the surfacing head 33 outputs the welding material to the rotating inner hole wall, and the circumferential uniform surfacing is completed; after the surfacing operation is completed, the transverse sliding frame 31 is controlled to continue to slide along the transverse direction, while the continuous casting roller 100 is kept rotating, the telescopic drive 35 is started, the telescopic end of the telescopic drive 35 is extended and drives the cleaning plate 34 to slide downward along the sliding cavity 321, until the telescopic end of the telescopic drive 35 abuts against the limiting strip 322, at this time, the bristles 341 are in contact with the inner hole wall, and the surfacing slag on the inner hole wall is cleaned along with the rotation of the continuous casting roller 100, and the surfacing slag falls along the inner hole opening into the material collecting box 4 below. In this stage, the surfacing and slag cleaning are completed through the integrated structure of the surfacing mechanism 3, without the need to disassemble the continuous casting roller 100 for separate slag cleaning, the operation cycle is greatly shortened, and the slag cleaning process is automated, avoiding the incompleteness of manual cleaning.
[0056] After the slag cleaning is completed, the telescopic end of the telescopic drive 35 is controlled to retract, drives the cleaning plate 34 to slide upward along the sliding cavity 321, so that the bristles 341 are retracted into the sliding cavity 321; the transverse sliding frame 31 is controlled to slide reversely along the transverse direction, drives the extension rod 32 to withdraw from the inner hole of the continuous casting roller 100; the rotating drive 23 is stopped, and the clamping jaw of the chuck 22 releases the continuous casting roller 100; the material collecting box 4 is removed from the workbench 1, the surfacing slag collected in the interior is poured out, and then the material collecting box 4 is reset, and the single surfacing repair operation is completed. The whole process is coherent and efficient, reduces manual intervention, and reduces the operation strength.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.
Claims
1. A build-up welding machine for the inside hole of a continuous casting roll, characterized by, The utility model relates to a continuous casting roll inner hole surfacing device, including: Workbench (1), the workbench (1) is equipped with positioning mechanism (2) and surfacing mechanism (3) adjacently, the positioning mechanism (2) is used for positioning continuous casting roll (100) inner hole towards the surfacing mechanism (3), and drive continuous casting roll (100) rotates around own axis;The surfacing mechanism (3) includes: Transverse sliding frame (31) is connected in the slide on the workbench (1) with positioning mechanism (2) adjacent side; The end of the extension rod (32) is connected to the transverse sliding frame (31) near the positioning mechanism (2), and the extension rod (32) can be inserted into the inner hole of the continuous casting roll (100) under the sliding of the transverse sliding frame (31); Surfacing head (33) is arranged on the other end of the extension rod (32), which is used for surfacing the inner hole of the continuous casting roll (100); Cleaning plate (34) is arranged on the extension rod (32), and the bottom surface of the cleaning plate (34) has a plurality of downward extending bristles (341), the arrangement direction of the bristles (341) forms an angle with the length direction of the extension rod (32), and the bristles (341) are used for contacting the inner hole wall of the continuous casting roll (100) to clean the surfacing slag in the inner hole of the continuous casting roll (100) when the continuous casting roll (100) rotates.
2. The continuous casting roll bore overlay welding machine according to claim 1, characterized by, The extension rod (32) is provided with a downward opening sliding cavity (321), and the cleaning plate (34) is connected in the sliding cavity (321) in the lifting sliding mode, and the bristles (341) can contact or separate from the inner hole wall of the continuous casting roll (100) under the lifting of the cleaning plate (34).
3. The continuous casting roll bore overlay welding machine according to claim 2, characterized in that, The side of the extension rod (32) away from the cleaning plate (34) is provided with a telescopic driving element (35), and the telescopic end of the telescopic driving element (35) is connected with the cleaning plate (34) to drive the cleaning plate (34) to slide up and down in the sliding cavity (321).
4. The continuous casting roll bore overlay welding machine according to claim 1, characterized by, One end of the extension rod (32) is rotatably connected to the transverse sliding frame (31) near the positioning mechanism (2), and the surfacing head (33) can adjust the surfacing angle under the rotation of the extension rod (32).
5. The continuous casting roll bore overlay welding machine according to claim 1, characterized by, The transverse sliding frame (31) is vertically connected to the workbench (1) in the sliding mode.
6. The continuous casting roll bore overlay welding machine according to claim 3, characterized by The opening inner wall of the sliding cavity (321) is detachably provided with a limiting strip (322), and the limiting strip (322) is used for abutting against the telescopic end of the telescopic driving element (35) to limit the sliding distance of the cleaning plate (34).
7. The continuous casting roll bore overlay welding machine of claim 1 wherein, The workbench (1) is slidably connected with a material collecting box (4), and the material collecting box (4) is used for collecting the surfacing slag falling from the inner hole of the continuous casting roll (100).
8. The continuous casting roll bore overlay welding machine according to claim 3, characterized by, The cleaning plate (34) is detachably connected to the telescopic end of the telescopic driving element (35).
9. The continuous casting roll bore overlay welding machine of claim 1 wherein, The positioning mechanism (2) includes: Mounting seat (21), the mounting seat (21) is arranged on the workbench (1); Chuck (22), the chuck (22) is rotatably connected to the mounting seat (21), and is used for positioning the continuous casting roll (100). A rotating driving member (23) is arranged on the mounting base (21) and used to drive the chuck (22) to rotate the continuous casting roller (100).
10. The continuous casting roll bore overlay welding machine according to claim 9, characterized in that, Further comprising: A rotating machine (24) is arranged on the workbench (1), and the positioning mechanism (2) is arranged on the rotating machine (24).