End face surfacing equipment for roller repair
By designing an end-face overlay welding device for roll repair, the device utilizes positioning and drive mechanisms to achieve precise positioning and rotation of the roll, thus solving the problem of inaccurate positioning during roll repair and improving welding quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-04-14
AI Technical Summary
The inability to effectively position the rolls during the repair welding process leads to inaccurate welding positions, poor weld formation, and affects quality while increasing safety hazards.
An end-face overlay welding device for roll repair was designed, comprising a positioning mechanism and a driving mechanism. The positioning mechanism fixes the roll, and the driving mechanism drives the roll to rotate and the welding head to move, thereby achieving precise welding.
It improves welding accuracy and efficiency, reduces repositioning and adjustment time, lowers operational risks, and ensures welding quality and safety.
Smart Images
Figure CN224115472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roll surfacing technology, specifically to an end face surfacing welding device for roll repair. Background Technology
[0002] Roll repair welding is a technique that uses welding to repair damaged rolls. This technique restores the roll to its normal working condition by adding high-strength welding material to the surface. Compared to replacing the roll with a brand new one, welding repair can be completed in a shorter time, reducing production downtime and costs. Welding repair also reduces the generation of scrap rolls, minimizing environmental impact, and the repaired rolls can be reused, reducing resource waste.
[0003] Currently, during roll repair welding, the rolls cannot be positioned properly and slight shaking occurs. This shaking can lead to inaccurate welding positions, poor weld formation, and even problems such as incomplete penetration, uneven welds, and difficulty in slag removal, affecting welding quality. Shaking also causes unstable welding operations, increasing welding time and difficulty, reducing repair efficiency, and the decline in welding quality may require additional repair work, further extending the repair time. During the welding process, if the rolls shake, it may pose safety hazards to the operators. For example, slag spatter and wire breakage may cause injury to the operators. Utility Model Content
[0004] The purpose of this invention is to provide an end-face overlay welding device for roll repair, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an end-face overlay welding device for roll repair, comprising a workbench, and further comprising:
[0006] A support frame is installed on the top of the workbench. A roller body is installed inside the support frame. A positioning mechanism is installed on the outer side of the roller body. The positioning mechanism includes roller heads fixed to both ends of the roller body. A first clamping plate and a second clamping plate are respectively engaged on the outer sides of the two roller heads. Limiting holes are formed in the inner walls of the roller heads. A slot is formed in the inner walls of both the first and second clamping plates. A spring is fixed to the inner wall of the slot. A limiting pin is fixed to one end of the spring and engages with the inner wall of the limiting hole. A positioning seat is fixed to one side of the first clamping plate and rotatably connected to the inner wall of the support frame. A rotating rod is fixed to the outer side of the second clamping plate. Support legs are fixed at the four corners of the bottom of the workbench. An adjustment mechanism for moving the second clamping plate is installed above the workbench.
[0007] A drive mechanism for rotating the metal to be cleaned is disposed above the workbench. The drive mechanism includes a mounting frame, a first motor is disposed on the inner side of the mounting frame, a drive gear is fixed to the output end of the first motor, a driven gear is meshed with the outer side of the drive gear, and the driven gear is fixed to one end of the rotating rod.
[0008] Preferably, the adjustment mechanism includes a second motor fixed to one side of the support frame, a first screw fixed to the output end of the second motor, the first screw being rotatably connected to the inner wall of the support frame, a first movable frame and a second movable frame being threadedly connected to the outer side of the first screw, the first movable frame and the second movable frame being rotatably connected to the outer side of the rotating rod, and the second movable frame being fixed to one side of the mounting frame.
[0009] Preferably, the top of the workbench is provided with a movable groove, and both the first movable frame and the second movable frame are slidably connected to the inner wall of the movable groove.
[0010] Preferably, one end of the first screw is rotatably connected to a support base, and the support base is fixed to the top of the worktable.
[0011] Preferably, the top of the support frame is provided with a through groove, the inner wall of the through groove is slidably connected to a movable plate, the top of the movable plate is fixed with a cylinder, and the piston rod of the cylinder is fixed with a welding head.
[0012] Preferably, the inner wall of the movable plate is threaded with a second screw, the second screw is rotatably connected to the inner wall of the support frame, one end of the second screw is fixed with a third motor, the third motor is fixed to one side of the support frame, and the inner wall of the movable plate is slidably connected with a slide rod, both ends of the slide rod being fixed to the inner wall of the support frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention uses a positioning mechanism to position the roll to be repaired by welding. Effective positioning ensures that the welding material is accurately added to the damaged part, avoiding repair failure or quality degradation due to positional deviation. It also reduces the time for repositioning and adjustment, improves work efficiency, and shortens the overall repair time. At the same time, fixing the roll reduces the risk to operators and avoids accidental injuries caused by roll movement. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of the end face overlay welding equipment for roll repair provided by this utility model;
[0016] Figure 2A schematic diagram of the adjustment mechanism provided by this utility model;
[0017] Figure 3 A schematic diagram of the positioning mechanism provided by this utility model;
[0018] Figure 4 A schematic diagram of the drive mechanism provided by this utility model.
[0019] In the diagram: 1. Workbench; 2. Support frame; 3. Roll body; 4. Positioning mechanism; 41. Roll head; 42. First clamping plate; 43. Second clamping plate; 44. Limiting hole; 45. Empty groove; 46. Spring; 47. Limiting pin; 48. Positioning seat; 5. Rotating rod; 6. Support leg; 7. Adjusting mechanism; 71. Second motor; 72. First screw; 73. First moving frame; 74. Second moving frame; 75. Moving groove; 76. Support seat; 8. Drive mechanism; 81. Mounting frame; 82. First motor; 83. Drive gear; 84. Driven gear; 9. Through groove; 10. Moving plate; 11. Cylinder; 12. Welding head; 13. Second screw; 14. Third motor; 15. Slide rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4As shown, an end-face welding device for roll repair includes a workbench 1 and a support frame 2 mounted on top of the workbench 1. A roll body 3 is housed inside the support frame 2. The workbench 1 and support frame 2 allow for the repair welding of the roll body 3. A positioning mechanism 4 is provided on the outer side of the roll body 3 to position it and prevent it from loosening during processing. The positioning mechanism 4 includes rolling heads 41 fixed to both ends of the roll body 3. The rolling heads 41 facilitate the fixing of the roll body 3 by a first clamping plate 42 and a second clamping plate 43. The outer sides of the two rolling heads 41 are respectively engaged with first clamping plates. The first clamping plate 42 and the second clamping plate 43 are used to clamp and fix the roll body 3. A limiting hole 44 is provided on the inner wall of the rolling head 41. A slot 45 is provided on the inner wall of both the first clamping plate 42 and the second clamping plate 43, through which a spring 46 can be installed. A spring 46 is fixed to the inner wall of the slot 45, and the spring 46 can extend and retract to move the limiting pin 47. A limiting pin 47 is fixed to one end of the spring 46, and the limiting pin 47 is engaged with the inner wall of the limiting hole 44. By engaging the limiting pin 47 with the limiting hole 44, the rolling head 41 can be fixed, thereby fixing the roll body 3. One side of the first clamping plate 42... A positioning seat 48 is fixedly attached to the inner wall of the support frame 2, and the positioning seat 48 supports the first clamping plate 42. A rotating rod 5 is fixed to the outer side of the second clamping plate 43, and the rotating rod 5 drives the second clamping plate 43 to rotate, thereby driving the clamped roll body 3 to rotate. Support legs 6 are fixed at the four corners of the bottom of the worktable 1, and the support legs 6 support and fix the worktable 1. An adjustment mechanism 7 is set above the worktable 1 to drive the second clamping plate 43 to move. The adjustment mechanism 7 drives the second clamping plate 43 to move and cooperate with the first clamping plate 42 to clamp and fix the roll body 3. The drive mechanism 8 for rotating the metal to be cleaned can automatically flip over during the welding process of the roll body 3. The drive mechanism 8 includes a mounting frame 81, which supports a first motor 82. The first motor 82 is installed inside the mounting frame 81, which drives the drive gear 83 to rotate. The output end of the first motor 82 is fixed with the drive gear 83, which drives the driven gear 84 to rotate. The driven gear 84 is meshed with the outer side of the drive gear 83. The driven gear 84 is fixed to one end of the rotating rod 5, and the rotation of the driven gear 84 drives the rotating rod 5 to rotate.
[0022] Please see Figure 2As shown, the adjusting mechanism 7 includes a second motor 71 fixed to one side of the support frame 2. The second motor 71 can drive the first screw 72 to rotate. The output end of the second motor 71 is fixed to the first screw 72. The first screw 72 can drive the first movable frame 73 and the second movable frame 74 to move simultaneously, thereby moving the second clamping plate 43. The first screw 72 is rotatably connected to the inner wall of the support frame 2. The outer side of the first screw 72 is threadedly connected to the first movable frame 73 and the second movable frame 74. Both the first movable frame 73 and the second movable frame 74 are rotatably connected to the outer side of the rotating rod 5. 4. Fixed to one side of the mounting bracket 81; the first movable bracket 73 and the second movable bracket 74 are both rotatably connected to the outside of the rotating rod 5, and the second movable bracket 74 is fixed to one side of the mounting bracket 81; a movable groove 75 is provided on the top of the workbench 1, and the first movable bracket 73 and the second movable bracket 74 can slide on the top of the workbench 1 by setting the movable groove 75; the first movable bracket 73 and the second movable bracket 74 are both slidably connected to the inner wall of the movable groove 75; one end of the first screw 72 is rotatably connected to a support seat 76, and the support seat 76 is fixed to the top of the workbench 1, and the first screw 72 can be rotated by setting the support seat 76.
[0023] Please see Figure 1 and Figure 2 As shown, the top of the support frame 2 has a through groove 9, which facilitates the movement of the movable plate 10 within it; the movable plate 10 is slidably connected to the inner wall of the through groove 9, and the movement of the movable plate 10 drives the welding head 12 to move; a cylinder 11 is fixed to the top of the movable plate 10, which drives the welding head 12 to move up and down; the piston rod of the cylinder 11 is fixed to the welding head 12, which enables laser cleaning of the metal surface; the inner wall of the movable plate 10 is threaded with... The second screw 13 is configured to rotate to move the movable plate 10. The second screw 13 is rotatably connected to the inner wall of the support frame 2. A third motor 14 is fixed to one end of the second screw 13, which can drive the second screw 13 to rotate. The third motor 14 is fixed to one side of the support frame 2. A slide rod 15 is slidably connected to the inner wall of the movable plate 10. Both ends of the slide rod 15 are fixed to the inner wall of the support frame 2. The slide rod 15 can improve the stability of the movement of the movable plate 10.
[0024] Working principle: The operator places the roll body 3 to be welded between the first clamping plate 42 and the second clamping plate 43. The second motor 71 is turned on, driving the first screw 72 to rotate. The first screw 72 drives the first moving frame 73 and the second moving frame 74 to move simultaneously, thereby moving the second clamping plate 43. The movement of the second clamping plate 43, in conjunction with the first clamping plate 42, clamps and fixes the roll body 3. The rolling heads 41 at both ends of the roll body 3 are engaged with the first clamping plate 42 and the second clamping plate 43. The limiting pins 47 are engaged with the limiting holes 44 by the spring force of the spring 46, thus securing the roll body. The roll body 3 is positioned, and then the cylinder 11 is opened to drive the welding head 12 to descend to a suitable height. The welding head 12 is used to repair and weld the roll body 3. At the same time, the first motor 82 can be opened to drive the drive gear 83 to rotate. The drive gear 83 drives the driven gear 84 to rotate. The driven gear 84 rotates to drive the rotating rod 5 to rotate, which in turn drives the clamped roll body 3 to rotate. The third motor 14 is opened to drive the second screw 13 to rotate. The second screw 13 drives the moving plate 10 to move, which in turn drives the welding head 12 to move, and welds are applied to different positions of the roll body 3.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An end-face overlay welding device for roll repair, comprising a workbench (1), characterized in that, Also includes: A support frame (2) is set on the top of the workbench (1). A roll body (3) is set inside the support frame (2). A positioning mechanism (4) is set on the outside of the roll body (3). The positioning mechanism (4) includes a rolling head (41) fixed to both ends of the roll body (3). A first clamping plate (42) and a second clamping plate (43) are respectively clamped on the outside of the two rolling heads (41). A limit hole (44) is opened on the inner wall of the rolling head (41). A slot (45) is opened on the inner wall of the first clamping plate (42) and the second clamping plate (43). The slot (45) is opened on the inner wall of the first clamping plate (42) and the second clamping plate (43). 5) has a spring (46) fixed on its inner wall. One end of the spring (46) is fixed with a limit pin (47). The limit pin (47) is engaged with the inner wall of the limit hole (44). A positioning seat (48) is fixed on one side of the first clamping plate (42). The positioning seat (48) is rotatably connected to the inner wall of the support frame (2). A rotating rod (5) is fixed on the outer side of the second clamping plate (43). Support legs (6) are fixed at the four corners of the bottom of the workbench (1). An adjustment mechanism (7) for moving the second clamping plate (43) is provided above the workbench (1). A drive mechanism (8) for rotating the metal to be cleaned is set above the workbench (1). The drive mechanism (8) includes a mounting frame (81). A first motor (82) is set on the inner side of the mounting frame (81). A drive gear (83) is fixed at the output end of the first motor (82). A driven gear (84) is meshed on the outer side of the drive gear (83). The driven gear (84) is fixed to one end of the rotating rod (5).
2. The end face welding equipment for roll repair according to claim 1, characterized in that: The adjustment mechanism (7) includes a second motor (71) fixed to one side of the support frame (2). The output end of the second motor (71) is fixed with a first screw (72). The first screw (72) is rotatably connected to the inner wall of the support frame (2). The outer side of the first screw (72) is threaded with a first movable frame (73) and a second movable frame (74). The first movable frame (73) and the second movable frame (74) are both rotatably connected to the outer side of the rotating rod (5). The second movable frame (74) is fixed to one side of the mounting frame (81).
3. The end face welding equipment for roll repair according to claim 2, characterized in that: The top of the workbench (1) is provided with a moving groove (75), and the first moving frame (73) and the second moving frame (74) are slidably connected to the inner wall of the moving groove (75).
4. The end face welding equipment for roll repair according to claim 2, characterized in that: One end of the first screw (72) is rotatably connected to a support base (76), which is fixed to the top of the workbench (1).
5. The end face welding equipment for roll repair according to claim 1, characterized in that: The support frame (2) has a through groove (9) at the top, and a movable plate (10) is slidably connected to the inner wall of the through groove (9). A cylinder (11) is fixed to the top of the movable plate (10), and a welding head (12) is fixed to the piston rod of the cylinder (11).
6. The end face welding equipment for roll repair according to claim 5, characterized in that: The inner wall of the movable plate (10) is threaded with a second screw (13), which is rotatably connected to the inner wall of the support frame (2). One end of the second screw (13) is fixed with a third motor (14), which is fixed to one side of the support frame (2). The inner wall of the movable plate (10) is slidably connected with a slide rod (15), both ends of which are fixed to the inner wall of the support frame (2).