Overlay welding machine capable of automatically repairing roller

Abstract

The invention discloses a surfacing welding machine capable of automatically repairing a roller, and relates to the technical field of surfacing welding machines, the surfacing welding machine comprises a base and a roller body installed on the base, the top of the base is fixedly connected with a supporting frame, and the supporting frame is provided with a surfacing welding gun for conducting surfacing welding treatment on the surface of the roller body; the supporting frame is further provided with a repairing assembly for conducting repairing treatment on the surfacing position. According to the surfacing welding machine capable of automatically repairing the roller, the threaded rod is driven by the servo motor to rotate, so that the moving frame in threaded connection with the threaded rod can accurately move left and right, and the design ensures that the position of the grinding belt can be accurately adjusted, so that effective surfacing welding treatment can be performed on different positions of the roller body; the grinding accuracy and efficiency are improved; and by means of a lifting rod, a guide wheel, a first damping spring, a positioning wheel and other assemblies, self-adaptive attachment and movement of the grinding belt in the moving process are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of surfacing welding machines, in particular to a surfacing welding machine for automatic repair of rolling mill rollers. Background Art

[0002] In the metal processing industry, the roller is an important process equipment. Its surface often suffers from wear, cracks or deformation due to long-term use or improper operation. These problems seriously affect the service life and processing quality of the roller. In order to solve these problems, the roller automatic repair surfacing machine came into being. It repairs the worn or damaged parts by surfacing treatment on the roller surface, thereby restoring the usability of the roller. However, although the existing technology has made certain progress, there are still some obvious defects. For example, some cladding machines often use a relatively simple mechanical structure when adjusting the position of the grinding belt, resulting in limited adjustment accuracy and unable to meet the needs of precise repair of minor damage to the roller surface. In addition, during the grinding process, some cladding machines may easily lead to poor grinding effects and even cause secondary damage to the roller surface due to unstable tension and contact force of the grinding belt. In addition, some existing cladding machines are complicated and not flexible enough to control the rotation angle of the roller and the inclination angle of the grinding belt, making it difficult to meet diverse repair needs. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a surfacing machine for automatic repair of rollers, which solves the technical problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a surfacing welding machine for automatic repair of a roll, comprising a base and a roll body mounted on the base, a support frame fixedly connected to the top of the base, a surfacing welding gun for surfacing the roll body surface is arranged on the support frame, and a repair component for repairing the surfacing position is also arranged on the support frame; The repair component includes a mobile frame which is laterally slidably installed on a support frame, and lifting rods are slidably connected to both sides of the bottom of the mobile frame. A mounting plate is slidably connected to the lifting rods, and a positioning frame is fixedly connected to the bottom of the mounting plate. The positioning frame is provided with a grinding belt for removing welding slag at the repaired part of the roller body.

[0005] As a further preferred embodiment of the present technical solution, a driving motor is fixedly connected to one side of the positioning frame, a driving wheel is provided at the output end of the driving motor, a rotating rod is rotatably connected to one side of the positioning frame, an adjusting rod is provided at the bottom of the positioning frame, a V-shaped frame is provided at the bottom of the adjusting rod, driven wheels are provided on both sides of the positioning frame, a tensioning wheel is provided on the rotating rod, and the driving wheel, the tensioning wheel and the two driven wheels are connected and provided through a grinding belt.

[0006] As a further preferred embodiment of the present technical solution, a second cylinder is arranged on the positioning frame, the output end of the second cylinder is connected to the rotating rod, the adjusting rod is fixedly mounted on the positioning frame by a first fixing bolt, a first arc groove is opened on the surface of the V-shaped frame, and a second fixing bolt connected to the adjusting rod is arranged in the first arc groove.

[0007] As a further preferred embodiment of the present technical solution, a servo motor is provided at one end of the support frame, a threaded rod is fixedly connected to the output end of the servo motor, and the movable frame is threadedly connected to the threaded rod.

[0008] As a further preferred embodiment of the present technical solution, guide wheels are arranged on the tops of the two lifting rods and positioning wheels are arranged on the bottoms. The lifting rods are provided with a first damping spring located between the movable frame and the mounting plate, and the guide wheels can slide on the horizontal plate and the inclined plate.

[0009] As a further preferred embodiment of the present technical solution, a support plate is fixedly connected to the top of the base, a rotating shaft is rotatably connected to the support plate, and the rotating shaft and the roller body are at the same axis, one end of the rotating shaft is fixedly connected to a connecting frame, a sliding rod is slidably connected to the connecting frame around, an arc-shaped clamping plate is fixedly connected to the outer end of the sliding rod, and a guide shaft is fixedly connected to the inner end of the sliding rod, a large gear is rotatably connected to the axis of the connecting frame, a second arc-shaped groove is opened on the surface of the large gear, and the guide shaft is slidably installed in the second arc-shaped groove, a control motor is fixedly installed at one end of the connecting frame, and a small gear meshing with the large gear is fixedly connected to the output end of the control motor.

[0010] As a further preference of the present technical solution, a rotating disk is fixedly connected to the rotating shaft, a first slot arranged in a circular array is opened inside the rotating disk, a second slot arranged in a circular array is opened outside the rotating disk, a positioning seat fixedly mounted on the support frame is provided on one side of the rotating disk, a swing rod is rotatably connected to the positioning seat, the upper and lower ends of the swing rod are respectively rotatably connected to a limit block and a push block, the push block is snap-fitted with the first slot, the limit block is snap-fitted with the second slot, and the push block and the limit block are connected by a second damping spring, and an extension rod is fixedly connected to the top of the swing rod.

[0011] As a further optimization of the present technical solution, a swing motor is arranged on the support frame, a reciprocating screw is fixedly connected to the output end of the swing motor, a linkage frame is threadedly connected to the reciprocating screw, and the linkage frame is laterally slidably installed on the support frame, and a groove matching the extension rod is opened on the surface of the linkage frame.

[0012] As a further preferred embodiment of the present technical solution, a support seat is fixedly connected to the top of the base, and the rolling roller body is placed on the base, and a fixed support seat and a movable support seat are respectively arranged on both sides of the support seat, the fixed support seat is fixedly installed on the base, and the movable support seat is slidably installed on the base through a first cylinder, and through holes are opened on the fixed support seat and the movable support seat, and bearing seats that are compatible with the rolling roller body are arranged in the through holes.

[0013] Compared with the prior art, it has the following beneficial effects: The threaded rod is driven to rotate by a servo motor, so that the moving frame threadedly connected to the threaded rod can move accurately left and right. This design ensures that the position of the grinding belt can be accurately adjusted, so that different positions of the roller body can be effectively surfacing, improving the accuracy and efficiency of grinding; the lifting rod, guide wheel, first damping spring, positioning wheel and other components are used to achieve adaptive fitting and movement of the grinding belt during movement. When the guide wheel slides on the cross plate, the elastic force of the first damping spring makes the grinding belt fit closely to the roller body for cleaning; and when the guide wheel moves to the inclined plate, each component moves upward, achieving effective movement and cleaning of the grinding belt at different positions; the motor is controlled to drive the small gear to rotate, thereby driving the large gear and the arc clamping plate to move inward, so as to achieve convenient clamping of the roller body. The roller body is held fixed, and this design facilitates the subsequent rotation of the roller body, so that the position of the roller body can be adjusted to ensure that the grinding belt can completely clean the welding slag at the surfacing; the rotating disk, the first slot, the second slot, the swing rod, the limit block, the push block and the second damping spring are used to realize the intermittent rotation of the rotating shaft. This design can intermittently drive the roller body to rotate, so as to further adjust the position of the roller body, and ensure that the grinding belt can continuously and effectively clean the welding slag at the surfacing; the reciprocating screw is driven to rotate by the swing motor, thereby driving the linkage frame to reciprocate on the support frame. This design enables the linkage frame to drive the swing rod to reciprocate with the positioning seat as the axis, thereby realizing the automatic control of the rotation angle of the roller body, and improving the automation degree and operation convenience of the entire device.

[0014] The grinding belt position can be precisely adjusted by the lateral sliding of the mobile frame on the support frame and the sliding of the lifting rod on the mounting plate. This design enables the grinding belt to be accurately positioned at the welding slag position of the roller body that needs to be repaired and cleaned, thereby improving the accuracy and efficiency of the repair. The grinding belt can be tensioned by using the second cylinder to drive the rotating rod and the tensioning wheel to move, thereby ensuring that the grinding belt maintains a stable tension and contact force during operation, thereby improving the cleaning effect. The adjusting rod, the V-shaped frame and the driven wheel can be moved up and down by loosening the first fixing bolt, thereby changing the grinding position of the grinding belt. This design enables the grinding belt to adapt to the welding slag cleaning needs at different positions, thereby increasing the accuracy and efficiency of the repair. Flexibility in repair; the design of the first arc groove and the second fixing bolt on the V-frame allows the inclination angle of the V-frame and the driven wheel on the adjusting rod to be adjusted. This adjustment can change the inclination angle of the grinding belt when cleaning the welding slag at the surfacing of the roller body, making the cleaning more thorough and reducing the possibility of welding slag residue; the grinding belt is connected through the driving wheel, the tensioning wheel and the two driven wheels to form a stable transmission system. This design ensures that the grinding belt can continuously and evenly contact the surface of the roller body and effectively remove the welding slag. At the same time, by accurately controlling the position and inclination angle of the grinding belt, efficient cleaning of the welding slag on the surface of the roller body can be achieved to ensure the quality of repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the base, the support base, the fixed support base, the movable support base and the roller body in the present invention; Figure 3 It is a schematic diagram of the structure of the support frame, the horizontal plate, the inclined plate, the moving frame and the guide wheel in the present invention; Figure 4 It is a schematic diagram of the structure of the mobile frame, lifting rod, guide wheel, mounting plate, grinding belt and positioning wheel in the present invention; Figure 5 It is a schematic diagram of the structure of the positioning frame, the driving motor and the grinding belt in the present invention; Figure 6 It is a schematic diagram of the structure of the positioning frame, the rotating rod, the adjusting rod, the V-shaped frame, and the grinding belt in the present invention; Figure 7 It is a schematic diagram of the structure of the reciprocating screw rod, linkage frame, extension rod, swing rod and rotating disk in the present invention; Figure 8 It is a schematic diagram of the structure of the rotating shaft, the connecting frame, the sliding rod and the arc-shaped clamping plate in the present invention; Fig. 9 It is a schematic structural diagram of the rotating disk, the pushing block and the limiting block in the present invention.

[0016] In the figure: 1, base; 2, support frame; 3, roller body; 4, surfacing welding gun; 5, repair component; 11, support seat; 12, fixed support seat; 13, mobile support seat; 14, first cylinder; 51, mobile frame; 52, lifting rod; 53, mounting plate; 54, positioning frame; 55, driving motor; 56, rotating rod; 57, V-shaped frame; 58, driving wheel; 59, tensioning wheel; 510, driven wheel; 511, grinding belt; 512, second cylinder; 513, adjusting rod; 514, first fixing bolt; 515, first arc groove; 516, second fixing bolt; 517, guide wheel; 518, first damping spring; 519, fixed Positioning wheel; 520, horizontal plate; 521, tilting plate; 522, servo motor; 523, threaded rod; 524, supporting plate; 525, rotating shaft; 526, connecting frame; 527, sliding rod; 528, arc clamping plate; 529, guide shaft; 530, large gear; 531, second arc groove; 532, control motor; 533, small gear; 534, rotating disk; 535, first slot; 536, second slot; 537, positioning seat; 538, swing rod; 539, pushing block; 540, limiting block; 541, second damping spring; 542, extension rod; 543, swing motor; 544, reciprocating screw rod; 545, linkage frame. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: Combination Figure 1-Figure 8 As shown, the present invention provides a technical solution: a surfacing welding machine for automatic repair of a roll, comprising a base 1, on which a roll body 3 is mounted, a support frame 2 is fixedly connected to the top of the base 1, a surfacing welding gun 4 is arranged on the support frame 2, and is used for surfacing the surface of the roll body 3, and in addition, a repair component 5 is also arranged on the support frame 2, and is used for repairing the surfacing position; The repair component 5 includes a mobile frame 51 which is laterally slidably mounted on the support frame 2, and lifting rods 52 are slidably connected to both sides of the bottom of the mobile frame 51, and a mounting plate 53 is slidably connected to the lifting rods 52. A positioning frame 54 is fixedly connected to the bottom of the mounting plate 53, and a grinding belt 511 is arranged on the positioning frame 54 for removing welding slags at the repaired part of the roller body 3; A driving motor 55 is fixedly connected to one side of the positioning frame 54, and a driving wheel 58 is provided at the output end of the driving motor 55. A rotating rod 56 is rotatably connected to one side of the positioning frame 54. An adjusting rod 513 is provided at the bottom of the positioning frame 54, and a V-shaped frame 57 is provided at the bottom of the adjusting rod 513. Two driven wheels 510 are provided on both sides of the positioning frame 54, and a tensioning wheel 59 is provided on the rotating rod 56. The driving wheel 58, the tensioning wheel 59 and the two driven wheels 510 are connected and provided through a grinding belt 511. A second cylinder 512 is provided on the positioning frame 54, and the output end of the second cylinder 512 is connected to the rotating rod 56. By turning on the second cylinder 512, the positions of the rotating rod 56 and the tensioning wheel 59 can be adjusted, so that the tensioning wheel 59 can tension the grinding belt 511. The adjusting rod 513 is fixedly installed on the positioning frame 54 by the first fixing bolt 514. When the first fixing bolt 514 is loosened, the adjusting rod 513, the V-shaped frame 57, and the driven wheel 510 can be moved up and down, thereby changing the grinding position of the grinding belt 511. A first arc groove 515 is provided on the surface of the V-shaped frame 57, and a second fixing bolt 516 connected to the adjusting rod 513 is provided in the first arc groove 515. When the second fixing bolt 516 is fed, the inclination angle of the V-shaped frame 57 and the driven wheel 510 on the adjusting rod 513 can be adjusted, and the inclination angle of the grinding belt 511 for cleaning the welding slag at the surfacing of the roller body 3 can be changed. In this way, by accurately controlling the position and inclination angle of the grinding belt 511, the welding slag on the surface of the roller body 3 can be effectively removed to ensure the repair quality; At one end of the support frame 2, a servo motor 522 is provided, and the output end of the servo motor 522 is fixedly connected to a threaded rod 523, and the movable frame 51 is connected to the threaded rod 523 by threads, so that when the servo motor 522 is started and drives the threaded rod 523 to rotate, the threaded rod 523 can drive the movable frame 51 to move left and right, and this movement mode enables the position of the grinding belt 511 to be accurately adjusted, thereby ensuring that the grinding belt 511 can effectively perform surfacing treatment on different positions of the roller body 3; A guide wheel 517 is provided at the top of each of the two lifting rods 52, and a positioning wheel 519 is provided at the bottom of each of the lifting rods 52. A first damping spring 518 is sleeved on the lifting rods 52 and is located between the moving frame 51 and the mounting plate 53. The guide wheel 517 can slide on the transverse plate 520 and the inclined plate 521. When the guide wheel 517 slides on the transverse plate 520, the mounting plate 53, the lifting rods 52, and the positioning frame 519 are moved under the elastic force of the first damping spring 518. 4. The grinding belt 511 and the positioning wheel 519 will move downward, and this movement makes the two positioning wheels 519 closely fit and slide against the outer wall of the roller body 3. At the same time, the grinding belt 511 moves to the surfacing of the roller body 3. Then, the surfacing of the roller body 3 is cleaned by the grinding belt 511. When the guide wheel 517 moves to the position of the inclined plate 521, the lifting rod 52, the mounting plate 53, the positioning frame 54, the grinding belt 511 and the positioning wheel 519 will move upward; The top of the base 1 is fixedly connected to a support plate 524, on which a rotating shaft 525 is rotatably connected. The rotating shaft 525 and the roller body 3 are coaxially located. One end of the rotating shaft 525 is fixedly connected to a connecting frame 526, and a sliding rod 527 is slidably connected to the surroundings of the connecting frame 526. An arc-shaped clamping plate 528 is fixedly connected to the outer end of the sliding rod 527, and a guide shaft 529 is fixedly connected to the inner end of the sliding rod 527. A large gear 530 is rotatably connected to the axis of the connecting frame 526, and a second arc-shaped groove 531 is provided on the surface of the large gear 530. The guide shaft 529 is slidably installed in the second arc-shaped groove 531. A control motor 532 is fixedly installed at one end of the connecting frame 526. The output end of the control motor 532 is fixedly connected with a small gear 533 meshing with the large gear 530. When the roller body 3 needs to be connected, the control motor 532 is turned on to drive the small gear 533 to rotate, so that the small gear 533 drives the large gear 530 to rotate. When the large gear 530 rotates, it cooperates with the second arc groove 531 and the guide shaft 529 to drive the sliding rod 527 and the arc clamping plate 528 to move inward, so that the arc clamping plate 528 clamps and fixes the end of the roller body 3, which is convenient for the subsequent rotation of the roller body 3, so that the position of the roller body 3 can be adjusted, so that the grinding belt 511 can clean the welding slag at the surfacing. A rotating disk 534 is fixedly connected to the rotating shaft 525. A first slot 535 arranged in a circumferential array is provided inside the rotating disk 534, and a second slot 536 arranged in a circumferential array is provided outside the rotating disk 534. A positioning seat 537 fixedly installed on the support frame 2 is provided on one side of the rotating disk 534. A swing rod 538 is rotatably connected to the positioning seat 537. The upper and lower ends of the swing rod 538 are rotatably connected to a limit block 540 and a push block 539 respectively. The push block 539 is snap-fitted with the first slot 535, and the limit block 540 is snap-fitted with the second slot 536. The push block 539 is connected to the limit block 540 through a second damping spring 541. An extension rod 542 is fixedly connected to the top of the swing rod 538. When the swing rod 538 rotates to one side with the positioning seat 537 as the axis, the swing rod 538 can drive the push block 539 to rotate. The movable block 539 moves to one side, so that the pushing block 539 cooperates with the first slot 535 to push the rotating disk 534 to rotate. At this time, the limiting block 540 moves from the second slot 536 to the next second slot 536. When the swing rod 538 rotates to the other side, the swing rod 538 drives the pushing block 539 to move to the next first slot 535. At the same time, under the elastic force of the second damping spring 541, the limiting block 540 and the pushing block 539 can be driven to engage with the second slot 536 and the first slot 535 respectively, and so on. The rotating disk 534 and the rotating shaft 525 are intermittently driven to rotate, and then the roller body 3 is driven to rotate intermittently through the rotating shaft 525 through the arc clamping plate 528, so that the position of the roller body 3 can be adjusted, so that the grinding belt 511 can clean the welding slag at the surfacing. A swing motor 543 is arranged on the support frame 2, and a reciprocating screw rod 544 is fixedly connected to the output end of the swing motor 543, and a linkage frame 545 is threadedly connected to the reciprocating screw rod 544. The linkage frame 545 is horizontally slidably installed on the support frame 2, and a groove matched with the extension rod 542 is provided on the surface of the linkage frame 545. By turning on the swing motor 543, the reciprocating screw rod 544 is driven to rotate synchronously, and the reciprocating screw rod 544 drives the linkage frame 545 located on the support frame 2 to move back and forth, so that the linkage frame 545 drives the extension rod 542 and the swing rod 538 to reciprocate around the positioning seat 537.

[0019] In the embodiment of the present invention, by starting the servo motor 522, the threaded rod 523 can be driven to rotate. The rotation of the threaded rod 523 can drive the moving frame 51 to move in the left and right directions. This movement allows the position of the grinding belt 511 to be adjusted, thereby achieving accurate surfacing treatment of different positions of the roller body 3. This process ensures that the grinding belt 511 can accurately contact a specific area of ​​the roller body 3 through precise mechanical transmission and control, so as to achieve the expected surfacing effect. At the same time, by starting the swing motor 543, the reciprocating screw rod 544 can be driven to rotate synchronously. The rotation of the reciprocating screw rod 544 drives the linkage frame 545 to reciprocate on the support frame 2. The movement of the linkage frame 545 drives the extension rod 542 and the swing rod 538 to reciprocate around the positioning seat 537. This reciprocating rotation design enables the swing rod 538 to rotate to one side under the action of the axis of the positioning seat 537. When the swing rod 538 rotates to one side, it will push the push block 539 to move to one side. The push block 539 cooperates with the first slot 535 to push the rotating disk 534 to rotate. At this time, the limit block 540 will move from the second slot 536 moves to the next second slot 536. When the swing rod 538 rotates to the other side, the push block 539 moves to the next first slot 535. Under the elastic force of the second damping spring 541, the limit block 540 and the push block 539 are respectively engaged in the second slot 536 and the first slot 535. This reciprocating motion design allows the rotating disk 534 and the rotating shaft 525 to rotate intermittently. The rotating shaft 525 drives the roller body 3 to rotate intermittently through the arc clamping plate 528, thereby realizing the precise adjustment of the position of the roller body 3. This adjustment allows the grinding belt 511 to effectively clean the welding slag at the surfacing. In addition, when the guide wheel 517 slides on the cross plate 520, the elastic force of the first damping spring 518 drives the mounting plate 53, the lifting rod 52, the positioning frame 54, the grinding belt 511 and the positioning wheel 519 to move downward. This movement makes the two positioning wheels 519 fit closely with the outer wall of the roller body 3 and slide. At the same time, the grinding belt 511 moves to the surfacing of the roller body 3. In this way, the grinding belt 511 can effectively clean the surfacing of the roller body 3 to ensure the flatness and smoothness of the surfacing area. This process ensures that the grinding belt 511 can accurately contact the specific area of ​​the roller body 3 through precise mechanical transmission and control to achieve the expected cleaning effect. The cladding welding gun 4 serves as a support and guide device for the electrode rod, ensuring that the electrode rod can be stably and accurately moved to the designated cladding position, which helps to ensure the uniformity and consistency of the cladding layer, thereby improving the cladding quality. Secondly, the wire feeding mechanism inside the cladding welding gun 4 is responsible for feeding the electrode rod into the cladding area and controlling its feeding speed and wire feeding amount. By accurately controlling the wire feeding speed and feeding amount of the electrode rod, the thickness and width of the cladding layer can be accurately controlled to meet different repair needs. In addition, the cladding welding gun 4 is also responsible for generating and maintaining the arc during the cladding process. The arc is the key heat source in the cladding process, which causes the material on the electrode rod to melt rapidly and transfer to the surface of the roller. The cladding welding gun 4 can control the arc thermal effect by adjusting parameters such as the arc length, current and voltage, thereby ensuring the stability and reliability of the cladding process. First, the roller body 3 to be repaired is installed on the bed of the support seat 11. Then, according to the size and shape of the roller, the position and height of the surfacing welding gun 4 are adjusted to ensure that the electrode rod can be surfacing perpendicular to the roller surface. When the preparation work is completed, the surfacing machine is started, and the electrode rod begins to feed downward at a certain speed to form an arc between the electrode rod and the roller surface. The high temperature of the arc causes the material on the electrode rod to melt rapidly. The molten electrode rod material is sprayed onto the roller surface under the action of the arc and fuses with the material on the roller surface to form a new surfacing layer. By adjusting welding parameters such as current, voltage, welding speed, etc. and the position of the machine head, the thickness, width and surfacing position of the surfacing layer can be controlled to meet different repair requirements. After the surfacing is completed, the surfacing machine is turned off and the surfacing layer is waited for to cool and solidify. Then, the surfacing layer is polished as necessary to ensure that its surface is flat and smooth and meets the use requirements.

[0020] Embodiment 2: Combination Figure 2 As shown, on the basis of Example 1, a support seat 11 is fixedly connected to the top of the base 1, and the roller body 3 is placed on the base 1, and a fixed support seat 12 and a movable support seat 13 are respectively arranged on both sides of the support seat 11, the fixed support seat 12 is fixedly installed on the base 1, and the movable support seat 13 is slidably installed on the base 1 through a first cylinder 14, and through holes are opened on the fixed support seat 12 and the movable support seat 13, and bearing seats that are compatible with the roller body 3 are arranged in the through holes.

[0021] In an embodiment of the present invention, after the distance between the movable support seat 13 and the fixed support seat 12 is increased by turning on the first cylinder 14, the roller body 3 to be repaired is placed on the movable support seat 13, and one end of the roller body 3 is rotatably connected to the bearing seat of the fixed support seat 12, and then the first cylinder 14 is turned on to push the movable support seat 13 closer to the roller body 3, so that the other end of the roller body 3 is rotatably connected to the bearing seat of the movable support seat 13, that is, when the arc-shaped clamping plate 528 moves inward, the end of the roller body 3 can be clamped, so that the arc-shaped clamping plate 528 can drive the roller body 3 to rotate when it rotates, thereby facilitating subsequent repair processing.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surfacing welding machine for automatic repair of a rolling mill roll, comprising a base (1) and a rolling mill roll body (3) mounted on the base (1), characterized in that: A support frame (2) is fixedly connected to the top of the base (1), a cladding welding gun (4) for cladding the surface of the roller body (3) is arranged on the support frame (2), and a repair component (5) for repairing the cladding position is also arranged on the support frame (2); The repair component (5) comprises a movable frame (51) which is laterally slidably mounted on a support frame (2); lifting rods (52) are slidably connected to both sides of the bottom of the movable frame (51); a mounting plate (53) is slidably connected to the lifting rods (52); a positioning frame (54) is fixedly connected to the bottom of the mounting plate (53); and a grinding belt (511) for removing welding slag at the repaired portion of the roller body (3) is provided on the positioning frame (54).

2. The surfacing welding machine for automatic roller repair according to claim 1 is characterized in that: A driving motor (55) is fixedly connected to one side of the positioning frame (54), an output end of the driving motor (55) is provided with a driving wheel (58), a rotating rod (56) is rotatably connected to one side of the positioning frame (54), an adjusting rod (513) is provided at the bottom of the positioning frame (54), a V-shaped frame (57) is provided at the bottom of the adjusting rod (513), driven wheels (510) are provided on both sides of the positioning frame (54), a tensioning wheel (59) is provided on the rotating rod (56), and the driving wheel (58), the tensioning wheel (59) and the two driven wheels (510) are connected and arranged through a grinding belt (511).

3. The surfacing welding machine for automatic roller repair according to claim 2 is characterized in that: A second cylinder (512) is arranged on the positioning frame (54), and an output end of the second cylinder (512) is connected to a rotating rod (56). An adjusting rod (513) is fixedly mounted on the positioning frame (54) via a first fixing bolt (514). A first arc groove (515) is provided on the surface of the V-shaped frame (57), and a second fixing bolt (516) connected to the adjusting rod (513) is arranged in the first arc groove (515).

4. The surfacing welding machine for automatic roller repair according to claim 3 is characterized in that: A servo motor (522) is disposed at one end of the support frame (2); a threaded rod (523) is fixedly connected to the output end of the servo motor (522); and the movable frame (51) is threadedly connected to the threaded rod (523).

5. The surfacing welding machine for automatic roller repair according to claim 4 is characterized in that: The two lifting rods (52) are provided with guide wheels (517) at the top and positioning wheels (519) at the bottom. The lifting rods (52) are sleeved with a first damping spring (518) located between the moving frame (51) and the mounting plate (53). The guide wheels (517) can slide on the transverse plate (520) and the inclined plate (521).

6. The surfacing welding machine for automatic roller repair according to claim 5 is characterized in that: The top of the base (1) is fixedly connected to a support plate (524), a rotating shaft (525) is rotatably connected to the support plate (524), and the rotating shaft (525) and the roller body (3) are located at the same axis, one end of the rotating shaft (525) is fixedly connected to a connecting frame (526), ​​and the connecting frame (526) is slidably connected to a sliding rod (527) around the periphery, and the outer end of the sliding rod (527) is fixedly connected to an arc-shaped clamping plate (528), and the inner end of the sliding rod (527) is fixedly connected to the arc-shaped clamping plate (528). A guide shaft (529) is fixedly connected to one end of the connecting frame (526); a large gear (530) is rotatably connected to the axis of the connecting frame (526); a second arc groove (531) is provided on the surface of the large gear (530); and the guide shaft (529) is slidably installed in the second arc groove (531); a control motor (532) is fixedly installed at one end of the connecting frame (526); and a small gear (533) meshing with the large gear (530) is fixedly connected to the output end of the control motor (532).

7. The surfacing welding machine for automatic roller repair according to claim 6, characterized in that: A rotating disk (534) is fixedly connected to the rotating shaft (525), a first clamping groove (535) arranged in a circumferential array is provided inside the rotating disk (534), a second clamping groove (536) arranged in a circumferential array is provided outside the rotating disk (534), a positioning seat (537) fixedly mounted on the support frame (2) is provided on one side of the rotating disk (534), a swing rod (538) is rotatably connected to the positioning seat (537), the upper and lower ends of the swing rod (538) are rotatably connected to a limit block (540) and a push block (539), the push block (539) is snap-fitted with the first clamping groove (535), the limit block (540) is snap-fitted with the second clamping groove (536), and the push block (539) is connected to the limit block (540) via a second damping spring (541), and an extension rod (542) is fixedly connected to the top of the swing rod (538).

8. The surfacing welding machine for automatic roller repair according to claim 7 is characterized in that: A swing motor (543) is arranged on the support frame (2), a reciprocating screw rod (544) is fixedly connected to the output end of the swing motor (543), a linkage frame (545) is threadedly connected to the reciprocating screw rod (544), and the linkage frame (545) is laterally slidably installed on the support frame (2), and a groove matching the extension rod (542) is provided on the surface of the linkage frame (545).

9. The surfacing welding machine for automatic roller repair according to claim 1, characterized in that: A support seat (11) is fixedly connected to the top of the base (1), and the roller body (3) is placed on the base (1). A fixed support seat (12) and a movable support seat (13) are respectively arranged on both sides of the support seat (11). The fixed support seat (12) is fixedly mounted on the base (1), and the movable support seat (13) is slidably mounted on the base (1) via a first cylinder (14). Through holes are provided on the fixed support seat (12) and the movable support seat (13), and bearing seats that are mutually compatible with the roller body (3) are arranged in the through holes.

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