Surfacing tool

Abstract

According to the surfacing welding tool, a fixing frame is arranged on the peripheral side of a base material body and fixedly connected with the base material body; a welding groove with a closed path is formed in the base material body, and the width of the welding groove is larger than that of a finished product. One end of the heat preservation part is fixedly connected with the outer side face of the first installation part, the other end of the heat preservation part is fixedly connected with the second installation part, and the heat preservation part is wound around the periphery of the second installation part; the second mounting piece is rotationally connected with the fixing frame; the first mounting piece is slidably connected with the fixing frame and can drive the heat preservation piece to cover a groove opening of the welding groove. The welding groove formed in the plate face of the base material body provides an operation space for surfacing operation, the width of the welding groove is larger than that of a finished product, welding seam shrinkage during large-area surfacing operation is avoided, and it is guaranteed that the finished product meets the target size. A worker can hold the first mounting piece by hand to slide on the fixing frame, so that the heat preservation piece is unfolded and covers the surfacing completed part, and the surfacing completed part is prevented from generating cracks due to rapid cooling.

Description

Technical Field

[0001] The present application relates to the technical field of surfacing welding, and in particular to a surfacing welding tool. Background Art

[0002] Hardfacing is a welding technique that deposits welding material onto a substrate to improve wear resistance or repair damaged parts. Commonly used methods include arc hardfacing, gas shielded arc hardfacing, and laser hardfacing. These methods utilize different heat sources and materials to achieve the desired hardfacing effect, making them suitable for a variety of industrial applications, particularly in mechanical repair and surface enhancement.

[0003] The base material used in existing hardening operations has a tendency to harden and is highly susceptible to cracking. Large-area hardening operations can easily cause weld deformation. Furthermore, the base material must be preheated before hardening and maintained during the process. If hardening is resumed after a pause, a second preheating step is required, which can easily lead to weld cracks. Furthermore, localized heating of the weldment during welding creates an uneven temperature field, leading to weld deformation. This affects the finished weld's dimensions and makes it difficult to meet work standards.

[0004] Therefore, a surfacing welding tool is urgently needed to solve the above problems. Utility Model Content

[0005] The embodiment of the present application provides a surfacing tool to ensure that the thermal stress on the weldment and / or the substrate body is reduced to meet the dimensional requirements of the formed weldment.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A surfacing tool, characterized by comprising a fixing frame and a heat-insulating component;

[0008] The fixing frame is arranged on the peripheral side of the substrate body and is fixedly connected to the substrate body;

[0009] A closed-path welding groove is provided on the plate surface of the substrate body, and the groove width of the welding groove is greater than the width of the finished product;

[0010] The thermal insulation component includes a first mounting member, a second mounting member and a thermal insulation member;

[0011] One end of the thermal insulation member is fixedly connected to the outer side surface of the first mounting member, and the other end thereof is fixedly connected to the second mounting member, and the thermal insulation member is used to be coiled around the periphery of the second mounting member;

[0012] The second mounting member is rotatably connected to a side of the fixing frame away from the first mounting member at both ends along its length direction;

[0013] The first mounting member is slidably connected to the frame bodies on two opposite sides of the fixing frame at both ends along the length direction thereof, and can drive the heat-insulating member to cover the notch of the welding groove.

[0014] Furthermore, the fixing frame includes two horizontal bars and two vertical bars;

[0015] Each of the horizontal bars is fixedly connected to each of the vertical bars in a staggered manner horizontally and vertically to form a rectangular frame structure;

[0016] The inner end surfaces of the two vertical rods are oppositely provided with sliding grooves, the groove walls of the sliding grooves at the lower position are flush with the groove openings of the welding grooves, and the groove length of the sliding grooves is greater than the length of the welding grooves on the substrate body;

[0017] The inner side surface of the cross bar is penetrated by a rotation groove along its width direction, and the rotation groove is provided with a rotation hole along its groove width direction. The hole wall of the rotation hole is rotatably connected to the second mounting member, and the rotation groove and the slide groove are arranged at different heights.

[0018] Furthermore, the head end of the thermal insulation component is fixedly connected to the lowest position of the first mounting component, the tail end of the thermal insulation component is set at the highest position of the second mounting component, and the bottom surface of the thermal insulation component is always flush with the notch of the welding groove.

[0019] Furthermore, the cross section of the chute is a convex structure, and the first mounting member is slidably connected to the groove wall of the chute at both end surfaces along its length direction.

[0020] Furthermore, a limiting rod is provided on one end face of the cross bar away from the substrate body, one end of the limiting rod is hinged to one end in the width direction of the cross bar, and the other end is plugged into the corresponding end face of the second mounting member.

[0021] Furthermore, a connecting hole is provided at the connection between the horizontal rod and the vertical rod, a through hole is provided on the substrate body, and a hole core of the connecting hole is coaxially arranged with a hole core of the through hole.

[0022] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects:

[0023] In this application, the weld grooves defined on the substrate body provide space for cladding operations. The groove width is greater than the width of the finished product, preventing weld shrinkage during large-area cladding operations and ensuring the finished product meets target dimensions. A worker can slide the first mounting member on the fixed frame, allowing the insulation to unfold and cover the completed cladding area, preventing cracks in the cladding area due to rapid cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of the assembly of the fixing frame and the substrate body provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of the fixing frame and the substrate body provided in an embodiment of the present application without being assembled;

[0027] Figure 3 A schematic structural diagram of a substrate body provided in an embodiment of the present application;

[0028] Figure 4 A schematic structural diagram of the first mounting member provided in an embodiment of the present application.

[0029] Icon: 10-substrate body; 101-welding groove; 102-through hole; 20-fixing frame; 21-vertical rod; 211-slide groove; 22-cross bar; 221-rotation groove; 222-rotation hole; 23-connecting hole; 30-insulation part; 40-first mounting part; 41-second mounting part; 42-limiting rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are 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 efforts are within the scope of protection of the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "fixed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0032] like Figures 1-4 As shown, a surfacing tool includes a fixing frame 20 and an insulation component; the fixing frame 20 is arranged on the peripheral side of the substrate body 10 and is fixedly connected to the substrate body 10; a welding groove 101 with a closed path is opened on the plate surface of the substrate body 10, and the groove width of the welding groove 101 is greater than the width of the finished product; the insulation component includes a first mounting member 40, a second mounting member 41 and an insulation member 30; one end of the insulation member 30 is fixedly connected to the outer side surface of the first mounting member 40, and the other end thereof is fixedly connected to the second mounting member 41, and the insulation member 30 is used to be coiled around the periphery of the second mounting member 41; the second mounting member 41 is rotatably connected to the side of the fixing frame 20 away from the first mounting member 40 at both ends along its length direction; the first mounting member 40 is slidably connected to the opposite side frames of the fixing frame 20 at both ends along its length direction, and can drive the insulation member 30 to cover the notch of the welding groove 101.

[0033] It should be noted that the finished product in this application is a ring structure. In the above scheme, the surfacing tool in this application includes components such as a fixing frame 20 and a heat preservation assembly. The fixing frame 20 is used to fix the substrate body 10 used for surfacing. The substrate body 10 in this application is a plate-like structure as a whole. The welding groove 101 opened on the plate surface of the substrate body 10 provides a working space for the surfacing operation, and the groove width of the welding groove 101 is greater than the width of the finished product to avoid the weld shrinkage when the substrate body 10 is subjected to large-area surfacing operation, so as to ensure that the finished product meets the target size. The structural shape of the substrate body 10 in this application can be a regular figure (square, equilateral triangle, etc.) or an irregular figure (circle, triangle, polygon), and the specific shape of the substrate body 10 is not limited.

[0034] It is feasible that the substrate body 10 in the present application is first made of a rectangular plate with a thickness of 22 mm, and a welding groove 101 with a depth of 3 mm is opened on both sides of the target welding position on the plate surface. The groove width has a 3 mm margin based on the forming size, thereby ensuring that the annular finished product will not produce cracks due to the tendency of hardening during the surfacing process.

[0035] In addition, the first mounting member 40 slides in the width direction of the fixing frame 20, the second mounting member 41 is rotatably connected to one side of the fixing frame 20, and the two ends of the insulation member 30 are fixedly connected to the first mounting member 40 and the second mounting member 41 respectively. The staff can hold the first mounting member 40 and slide it on the fixing frame 20, so that the insulation member 30 is unfolded and covers the completed surfacing portion, avoiding cracks in the surfacing portion due to rapid cooling. The insulation member 30 in this application is one or more of insulation cotton (blanket, cloth), ceramic fiber blanket, rock wool, and this application does not limit the material of the insulation member 30.

[0036] In practice, the fixing frame 20 of the present application can be disposed on one side of the substrate body 10, or on two opposite sides of the substrate body 10. Preferably, the fixing frame 20 of the present application is disposed on both sides of the substrate body 10, and welding grooves 101 are provided on the corresponding sides for simultaneous surfacing welding by workers, thereby improving the production efficiency of the finished product.

[0037] The fixing frame 20 includes two horizontal bars 22 and two vertical bars 21; each horizontal bar 22 is fixedly connected to each vertical bar 21 in a horizontal and vertical staggered manner to form a rectangular frame structure; the inner end faces of the two vertical bars 21 are oppositely provided with sliding grooves 211, and the groove wall of the sliding groove 211 at a low position is flush with the groove opening of the welding groove 101, and the groove length of the sliding groove 211 is greater than the length of the welding groove 101 on the substrate body 10; the inner side surface of the horizontal bar 22 is penetrated by a rotating groove 221 along its width direction, and the rotating groove 221 is provided with a rotating hole 222 along its groove width direction, and the hole wall of the rotating hole 222 is rotatably connected to the second mounting member 41, and the rotating groove 221 and the sliding groove 211 are arranged at a high and low position.

[0038] In the above solution, the frame-structured fixing frame 20 is fixedly connected to the periphery of the substrate body 10. The fixing frame 20 comprises horizontal bars 22 and vertical bars 21. The combination of the horizontal bars 22 and vertical bars 21 forms a rectangular space that provides a workspace for workers to perform surfacing welding on the substrate body 10. Slide slots 211 are provided along the length of the vertical bars 21.

[0039] In practice, the notch of the chute 211 faces the welded portion, facilitating the sliding of the first mounting member 40 on the vertical rod 21. The rotation groove 221 is provided to provide space for the second mounting member 41 to be installed with the thermal insulation member 30. The inner wall of the rotation member 222 is rotatably connected to the second mounting member 41, allowing a worker to extend the thermal insulation member 30 by pulling the first mounting member 40 and laying it on the surface of the welded portion. The rotation groove 221 and the chute 211 are staggered in spatial position, ensuring that the lower surface of the thermal insulation member 30 is always in contact with the welded portion.

[0040] To ensure that the insulation part 30 can be in stable contact with the surfacing part, the head end of the insulation part 30 is fixedly connected to the lowest position of the first mounting part 40, the tail end of the insulation part 30 is set at the highest position of the second mounting part 41, and the bottom surface of the insulation part 30 is always flush with the notch of the welding groove 101.

[0041] The cross section of the sliding groove 211 is a convex structure, and the first mounting member 40 is slidably connected to the groove wall of the sliding groove 211 at both end surfaces along the length direction.

[0042] In the present application, the cross-section of the chute 211 is a convex U-shaped structure, which can provide guidance for the first mounting member 40 when sliding on the vertical rod 21. On the other hand, it can prevent the first mounting member 40 from turning over in the chute 211 and causing wrinkles in the thermal insulation member 30. Alternatively, the cross-section of the contact portion between the first mounting member 40 and the chute 211 can also be a convex U-shaped structure to constrain the displacement path of the first mounting member 40 and prevent relative rotation between the first mounting member 40 and the chute 211.

[0043] A limiting rod 42 is provided on one end of the crossbar 22 away from the substrate body 10 . One end of the limiting rod 42 is hinged to one end in the width direction of the crossbar 22 , and the other end is plugged into the corresponding end face of the second mounting member 41 .

[0044] The limiting rod 42 in the present application is a C-shaped or J-shaped structure, one end of which is hinged to the crossbar 22, and the other end of which can be inserted into the end surface of the second mounting member 41 when the limiting rod 42 and the crossbar 22 rotate relative to each other. The purpose of this arrangement is to facilitate the operator to adjust the length of the thermal insulation member 30 according to the position of the cladding during the cladding process, while preventing the thermal insulation member 30 from retracting or swinging when covering the cladding area.

[0045] A connecting hole 23 is defined at the connection between the horizontal rod 22 and the vertical rod 21 . A through hole 102 is defined on the substrate body 10 . The core of the connecting hole 23 is coaxial with the core of the through hole 102 .

[0046] In the above solution, the connection hole 23 and the through hole 102 can both be threaded holes, which not only ensures a stable connection between the substrate body 10 and the cross bar 22 and vertical bar 21 brackets, but also prevents the substrate body 10 from being deformed due to thermal stress during the surfacing process. At the same time, it is convenient for workers to disassemble and install the fixing frame 20 and the substrate body 10, reducing the labor of workers.

[0047] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0048] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A surfacing tool, characterized in that: It includes a fixing frame (20) and a heat preservation component; The fixing frame (20) is arranged on the peripheral side of the substrate body (10) and is fixedly connected to the substrate body (10); A closed-path welding groove (101) is provided on the plate surface of the substrate body (10), and the groove width of the welding groove (101) is greater than the width of the finished product; The heat preservation assembly comprises a first mounting member (40), a second mounting member (41) and a heat preservation member (30); One end of the heat-insulating member (30) is fixedly connected to the outer side surface of the first mounting member (40), and the other end thereof is fixedly connected to the second mounting member (41), and the heat-insulating member is used to be wound around the periphery of the second mounting member (41); The second mounting member (41) is rotatably connected to a side of the fixing frame (20) away from the first mounting member (40) at both ends along its length direction; The first mounting member (40) is slidably connected to the two opposite sides of the fixing frame (20) at both ends along its length direction, and can drive the heat-insulating member (30) to cover the notch of the welding groove (101).

2. The surfacing tool according to claim 1, characterized in that: The fixing frame (20) includes two horizontal bars (22) and two vertical bars (21); Each of the horizontal bars (22) and each of the vertical bars (21) are fixedly connected in a horizontal and vertical staggered manner to form a rectangular frame structure; The inner end surfaces of the two vertical rods (21) are oppositely provided with sliding grooves (211), the groove wall of the sliding groove (211) at a lower position is flush with the groove opening of the welding groove (101), and the groove length of the sliding groove (211) is greater than the length of the welding groove (101) on the substrate body (10); The inner side surface of the cross bar (22) is penetrated by a rotation groove (221) along its width direction, and the rotation groove (221) is provided with a rotation hole (222) along its groove width direction. The hole wall of the rotation hole (222) is rotatably connected to the second mounting member (41), and the rotation groove (221) and the slide groove (211) are arranged at different heights.

3. The surfacing tool according to claim 1, characterized in that: The head end of the thermal insulation component (30) is fixedly connected to the lowest position of the first mounting component (40), the tail end of the thermal insulation component (30) is arranged at the highest position of the second mounting component (41), and the bottom surface of the thermal insulation component (30) is always flush with the notch of the welding groove (101).

4. The surfacing tool according to claim 2, characterized in that: The cross section of the slide groove (211) is a convex structure, and the first mounting member (40) is slidably connected to the groove wall of the slide groove (211) at both end circumferences along its length direction.

5. The surfacing tool according to claim 4, characterized in that: A limiting rod is provided on the end face of one side of the cross bar (22) away from the substrate body (10), one end of the limiting rod is hinged to one end in the width direction of the cross bar (22), and the other end is plugged into the corresponding end face of the second mounting member (41).

6. The surfacing tool according to claim 5, characterized in that: A connection hole (23) is provided at the connection between the horizontal rod (22) and the vertical rod (21), a through hole (102) is provided on the substrate body (10), and the hole core of the connection hole (23) is coaxially arranged with the hole core of the through hole (102).

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