A mechanism for controlling axial bending of a surface build-up welding of a continuous casting roll

Abstract

The utility model provides a kind of continuous casting roller surface surfacing axial bending control mechanism, belong to continuous casting roller surfacing technical field.It includes workbench, surfacing machine, control panel and be used for to the clamping assembly of continuous casting roller clamping, workbench is equipped with sliding block, telescopic cylinder is provided on sliding block, two articulated pedestals are symmetrically set on the piston rod of telescopic cylinder, arc clamping block is hingedly set on articulated pedestal, arc clamping block inside is provided with multiple auxiliary clamping rollers, the surface of auxiliary clamping roller is provided with a layer of rubber pad, and the top of arc clamping block is equipped with locking bolt.A kind of continuous casting roller surface surfacing axial bending control mechanism of the utility model, the middle different parts of continuous casting roller can be clamped by adjusting the position of sliding block, the coaxial balance of middle part and two ends of continuous casting roller can be guaranteed, and the bending of middle part caused by local overheating of continuous casting roller is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of continuous casting roll overlay welding technology, and specifically relates to an axial bending control mechanism for overlay welding on the surface of a continuous casting roll. Background Technology

[0002] Continuous casting rolls are core components in continuous casting production, and they must withstand high temperatures, wear, thermal fatigue, and erosion from molten steel for extended periods. Their surface properties directly determine their service life. Surface overlay welding is a key technology that involves fusing a layer of high-performance alloy material onto the surface of the continuous casting roll substrate to repair worn rolls or enhance the surface properties of new rolls. The entire process requires strict control of process parameters to ensure a strong bond between the weld overlay layer and the substrate, and uniform performance.

[0003] During the surface cladding of continuous casting rolls, the two ends of the roll are typically clamped and fixed, and the cladding is performed sequentially from left to right on the roll surface. However, the large temperature difference between the cladding and uncladding areas on the continuous casting roll can easily cause axial bending, affecting the cladding quality and the performance of the roll. Therefore, an axial bending control mechanism for surface cladding of continuous casting rolls is needed to solve this problem. Utility Model Content

[0004] The technical problem to be solved by this utility model is to reduce the deformation of the continuous casting roll by supporting and limiting the surface of the continuous casting roll during the welding process.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an axial bending control mechanism for surface overlay welding of continuous casting rolls, including a worktable, an overlay welding machine, a control panel, and a clamping assembly for clamping the continuous casting rolls. A sliding block is installed on the worktable, and a telescopic cylinder is provided on the sliding block. Two hinged bases are symmetrically arranged on the piston rod of the telescopic cylinder, that is, the telescopic cylinder can drive the hinged bases to move in the vertical direction. An arc-shaped clamping block is hinged on each hinged base. The arc-shaped clamping block has a hollow structure inside and multiple auxiliary clamping rollers are provided inside. That is, the auxiliary clamping rollers can clamp and limit the continuous casting rolls while rotating synchronously with the continuous casting rolls. A rubber pad is provided on the surface of the auxiliary clamping rollers, and the rubber pad abuts against the surface of the continuous casting rolls. That is, the rubber pad can protect the surface of the continuous casting rolls. A locking bolt is provided on the top of the arc-shaped clamping block through a plate. That is, the locking bolt can lock and fix the two arc-shaped clamping blocks.

[0006] Optionally, a bidirectional lead screw is provided on the worktable, and two sliding blocks are symmetrically arranged on the bidirectional lead screw. That is, each sliding block is equipped with a telescopic cylinder, a hinge base, an arc-shaped clamping block, and an auxiliary clamping roller, which can strengthen the support and fixation of the continuous casting roll. The two sliding blocks move towards each other. Auxiliary rods located on the worktable are installed on both sides of the bidirectional lead screw. That is, the auxiliary rods can ensure the stability of the sliding blocks and prevent the sliding blocks from deviating during movement.

[0007] Optionally, a temperature detector is installed on the welding head of the surfacing machine. The temperature detector is electrically connected to the control panel, that is, the temperature detector detects the temperature of the welding head in real time and transmits the temperature information to the control panel for display.

[0008] Optionally, the clamping assembly includes a fixed support plate and a sliding support plate mounted on the worktable. A pneumatic three-jaw chuck is rotatably mounted on both the fixed support plate and the sliding support plate. A drive motor connected to the pneumatic three-jaw chuck is mounted on the fixed support plate. The drive motor drives the pneumatic three-jaw chuck on the fixed support plate to rotate, which in turn drives the two pneumatic three-jaw chucks and the continuous casting roll to rotate, facilitating the welding machine to uniformly deposit welds on the surface of the continuous casting roll.

[0009] Optionally, a second drive motor is installed on the worktable, and a drive screw is installed on the output shaft of the second drive motor. A driven screw is installed on one side of the drive screw. Both the drive screw and the driven screw are installed through the fixed support plate and the sliding support plate. A conveyor belt is connected between the drive screw and the driven screw. That is, the linkage between the second drive motor and the conveyor belt can drive the drive screw and the driven screw to rotate synchronously, thereby driving the sliding support plate to move.

[0010] Optionally, a first receiving plate is provided on the top of the telescopic cylinder, and a second receiving plate is installed on the bottom of the two hinged bases. The second receiving plate is bolted to the first receiving plate and is detachable. That is, the second receiving plate can be disassembled and replaced to replace the arc-shaped clamping block and the auxiliary clamping roller according to the different diameter specifications of the continuous casting roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The telescopic cylinder can drive the hinged base and the arc-shaped clamping block to move upward, so that the auxiliary clamping roller is clamped on the continuous casting roll. By adjusting the position of the sliding block, different parts of the middle of the continuous casting roll can be clamped. Compared with traditional technology, it can ensure the coaxial balance between the middle part and the two ends of the continuous casting roll, prevent the middle part from bending due to local overheating of the continuous casting roll, and thus ensure the uniformity of the welding and the straightness of the continuous casting roll.

[0013] 2. The real-time monitoring of the temperature detector and the linkage with the control panel can help the staff to know the temperature change of the welding head of the surfacing machine by detecting the temperature data, and then adjust the temperature of the welding head in a timely manner to reduce the difference in heat output, maintain the temperature stability during the surfacing process, and prevent the continuous casting roll from bending due to excessive temperature difference.

[0014] 3. The detachable design of the receiving plate allows for the replacement of the arc-shaped clamping block and auxiliary clamping rollers, accommodating various continuous casting rollers of different diameters. The combined use of the drive motor, the active lead screw, the driven lead screw, and the conveyor belt can move the sliding support plate closer to or further away from the fixed support plate, enabling the pneumatic three-jaw chuck to adapt to clamping continuous casting rollers of different lengths, thus enhancing the flexibility and practicality of the mechanism. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 ;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the telescopic cylinder, hinged base, arc-shaped clamping block and auxiliary clamping roller of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Welding machine; 12. Control panel; 13. Two-way lead screw; 14. Auxiliary rod; 2. Anti-bending control assembly; 21. Sliding block; 22. Telescopic cylinder; 221. Support plate one; 23. Hinge base; 231. Support plate two; 24. Arc-shaped clamping block; 25. Auxiliary clamping roller; 26. Rubber pad; 27. Locking bolt; 28. Temperature detector; 3. Clamping assembly; 31. Fixed support plate; 32. Sliding support plate; 33. Pneumatic three-jaw chuck; 34. Drive motor one; 35. Drive motor two; 36. Driving lead screw; 37. Driven lead screw; 38. Conveyor belt. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] like Figure 1-3As shown, an axial bending control mechanism for surface cladding of a continuous casting roll includes a worktable 1, a cladding machine 11, and a control panel 12. It also includes an anti-bending control component 2 and a clamping component 3. Both the anti-bending control component 2 and the clamping component 3 are mounted on the worktable 1. The anti-bending control component 2 is positioned between the clamping components 3 and directly below the continuous casting roll. The anti-bending control component 2 supports different parts of the continuous casting roll to reduce axial bending during the cladding process. The clamping component 3 clamps the continuous casting roll and drives it to rotate. The cladding machine 11 is slidably mounted on the worktable 1 along the axial direction of the continuous casting roll to facilitate surface cladding of the roll. The control panel 12 is mounted on the worktable 1 and controls the electric system of the mechanism.

[0022] like Figure 1 and Figure 2 As shown, the clamping assembly 3 includes a fixed support plate 31, a sliding support plate 32, a pneumatic three-jaw chuck 33, a first drive motor 34, a second drive motor 35, a driving lead screw 36, a driven lead screw 37, a wire drum, and a conveyor belt 38. The worktable 1 is equipped with a fixed support plate 31 and a sliding support plate 32. Both the fixed support plate 31 and the sliding support plate 32 are equipped with pneumatic three-jaw chucks 33. The fixed support plate 31 is equipped with a first drive motor 34 connected to the pneumatic three-jaw chuck 33. The first drive motor 34 drives the pneumatic three-jaw chuck 33 on the fixed support plate 31 to rotate. The sliding support plate 32 is equipped with a pneumatic three-jaw chuck 33 via a sealed bearing. Compared to a two-jaw chuck, the pneumatic three-jaw chuck 33 can clamp the end of the continuous casting roll more stably. Under the action of the first drive motor 34, the two pneumatic three-jaw chucks 33 and the continuous casting roll can rotate around the axis of the continuous casting roll, facilitating uniform welding of the continuous casting roll surface by the welding machine.

[0023] A second drive motor 35 is installed on the workbench 1. A drive screw 36 is installed on the output shaft of the second drive motor 35. A driven screw 37 is installed on one side of the drive screw 36. A screw drum that cooperates with the screw is installed on the sliding support plate 32. Both the drive screw 36 and the driven screw 37 are installed through the fixed support plate 31 and cooperate with the screw drum on the sliding support plate 32. A conveyor roller is provided at the end of the driven screw 37. A conveyor belt 38 is installed between the connection between the drive screw 36 and the output shaft of the second drive motor 35 and the conveyor roller of the driven screw 37. Through the linkage of the second drive motor 35 and the conveyor belt 38, the drive screw 36 and the driven screw 37 can be driven to rotate synchronously, thereby driving the sliding support plate 32 to move, realizing the clamping of continuous casting rolls of different lengths and specifications, improving the flexibility of the clamping assembly 3, and facilitating the welding operation.

[0024] like Figure 1As shown, a bidirectional lead screw 13 and an auxiliary rod 14 are installed on the worktable 1. The bidirectional lead screw 13 is driven by an externally connected motor. The bidirectional lead screw 13 is located on the worktable 1 directly below the pneumatic three-jaw chuck 33 and the continuous casting roll, and is installed between the fixed support plate 31 and the sliding support plate 32. The auxiliary rod 14 is installed on both sides of the bidirectional lead screw 13, and the auxiliary rod 14 is also installed through the fixed support plate 31 and the sliding support plate 32.

[0025] like Figure 2 and Figure 3 As shown, the anti-bending control assembly 2 includes a sliding block 21, a telescopic cylinder 22, a first receiving plate 221, a hinge base 23, a second receiving plate 231, an arc-shaped clamping block 24, an auxiliary clamping roller 25, a rubber pad 26, a locking bolt 27, and a temperature detector 28. Two sliding blocks 21 are symmetrically arranged on the bidirectional lead screw 13 of the worktable 1. The sliding blocks 21 are located directly below the continuous casting roll. The two sliding blocks 21 move towards each other. Each sliding block 21 is equipped with a telescopic cylinder 22. The top of the telescopic cylinder 22 is equipped with a first receiving plate 221. The top of the first receiving plate 221 is bolted to a second receiving plate 231. The second receiving plate 231 is symmetrically arranged with two hinged bases 23. The telescopic cylinder 22 can drive the hinged bases 23 to move vertically. Each hinged base 23 is hinged with an arc-shaped clamping block 24. When clamping the continuous casting roll, the arc of the arc-shaped clamping block 24 is coaxial with the continuous casting roll. The arc-shaped clamping block 24 has a hollow internal structure and multiple auxiliary clamping rollers 25 inside. The auxiliary clamping rollers 25 can clamp and limit the continuous casting roll while rotating synchronously with the continuous casting roll. A rubber pad 26 is provided on the surface of the auxiliary clamping roller 25, and the rubber pad 26 abuts against the surface of the continuous casting roll. The rubber pad 26 can protect the surface of the continuous casting roll. The top of the arc-shaped clamping block 24 is provided with a locking bolt 27 through a plate. The locking bolt 27 can lock and fix the two arc-shaped clamping blocks 24. The design of the arc-shaped clamping block 24 and the auxiliary clamping rollers 25 enables the continuous casting roll to remain stable during the welding process, effectively reducing the probability of axial bending and improving the accuracy and efficiency of welding.

[0026] A temperature detector 28 is installed on the welding head of the welding machine 11. The temperature detector 28 is electrically connected to the control panel 12. The temperature detector 28 detects the temperature of the welding head in real time and transmits the temperature information to the control panel 12 for display. This allows the operator to adjust the temperature of the welding head on the welding machine 11 according to the temperature information, so that the temperature remains relatively stable and the continuous casting roll is prevented from bending due to large local temperature differences, thus ensuring the quality of the welding.

[0027] Working principle: In use, firstly, according to the length specification of the continuous casting roll, start the second drive motor 35. The second drive motor 35 drives the active lead screw 36 to rotate. The active lead screw 36 drives the driven lead screw 37 to rotate synchronously through the conveyor belt 38, which in turn drives the wire drum on the sliding support plate 32 to move on the active lead screw 36 and the driven lead screw 37. The two pneumatic three-jaw chucks 33 realize the stable clamping of continuous casting rolls of different length specifications. Then, start the first drive motor 34 through the control panel 12. The first drive motor 34 drives the pneumatic three-jaw chuck 33 on the fixed support plate 31 to rotate, which in turn drives the continuous casting roll to rotate around the axis.

[0028] Afterwards, the position of the sliding block 21 on the bidirectional lead screw 13 is adjusted so that the auxiliary clamping roller 25 clamps different parts of the continuous casting roll, ensuring the coaxial balance between the middle part and both ends of the continuous casting roll, preventing local overheating of the continuous casting roll and bending of the middle part, thereby ensuring the uniformity of the weld and the straightness of the continuous casting roll. The operator can observe the welding head temperature information displayed in real time by the temperature detector 28 through the control panel 12, and adjust the welding head temperature of the weld overlay machine 11 in a timely manner as needed to maintain a relatively stable temperature and prevent bending of the continuous casting roll due to large local temperature differences.

[0029] During the welding process, the two ends of the continuous casting roll can be welded first, and the middle part can be welded last. This can reduce the axial bending of the continuous casting roll caused by the large temperature difference between the two ends and the middle part during the welding process. The two ends of the continuous casting roll are welded first, and their temperature will be relatively stable. When the middle part is welded later, the two ends have cooled down, which can effectively reduce the risk of overall bending caused by the accumulation of welding heat.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A continuous casting roll surface surfacing axial bending control mechanism, comprising a worktable (1), a surfacing machine (11), a control panel (12), and a clamping assembly (3) for clamping the continuous casting roll, characterized in that: A sliding block (21) is installed on the workbench (1). A telescopic cylinder (22) is provided on the sliding block (21). Two hinged bases (23) are symmetrically arranged on the piston rod of the telescopic cylinder (22). An arc-shaped clamping block (24) is hinged on each of the hinged bases (23). The arc-shaped clamping block (24) is hollow inside and has multiple auxiliary clamping rollers (25). A rubber pad (26) is provided on the surface of the auxiliary clamping rollers (25). The rubber pad (26) abuts against the surface of the continuous casting roller. A locking bolt (27) is provided on the top of the arc-shaped clamping block (24) through a plate.

2. The axial bending control mechanism for surface overlay welding of continuous casting rolls as described in claim 1, characterized in that: The workbench (1) is provided with a bidirectional lead screw (13), and two sliding blocks (21) are provided on the bidirectional lead screw (13) and are symmetrically arranged. The two sliding blocks (21) move towards each other. Auxiliary rods (14) located on the workbench (1) are respectively installed on both sides of the bidirectional lead screw (13).

3. The axial bending control mechanism for surface overlay welding of continuous casting rolls as described in claim 1, characterized in that: The welding head of the welding machine (11) is equipped with a temperature detector (28), which is electrically connected to the control panel (12).

4. The axial bending control mechanism for surface overlay welding of continuous casting rolls as described in claim 1, characterized in that: The clamping assembly (3) includes a fixed support plate (31) and a sliding support plate (32) mounted on the workbench (1). A pneumatic three-jaw chuck (33) is rotatably mounted on both the fixed support plate (31) and the sliding support plate (32). A drive motor (34) connected to the pneumatic three-jaw chuck (33) is mounted on the fixed support plate (31).

5. The axial bending control mechanism for surface overlay welding of continuous casting rolls as described in claim 4, characterized in that: A second drive motor (35) is installed on the workbench (1). A drive screw (36) is installed on the output shaft of the second drive motor (35). A driven screw (37) is installed on one side of the drive screw (36). The drive screw (36) and the driven screw (37) are both installed through the fixed support plate (31) and the sliding support plate (32). A conveyor belt (38) is connected between the drive screw (36) and the driven screw (37).

6. The axial bending control mechanism for surface overlay welding of continuous casting rolls as described in claim 1, characterized in that: The top of the telescopic cylinder (22) is provided with a first support plate (221), and the bottom of the two hinged bases (23) is provided with a second support plate (231). The second support plate (231) is bolted to the first support plate (221) and is detachable.

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