Induction heating brazing fixture

Abstract

To provide an induction heating brazing jig that solves the problems present in conventional induction heating brazing jigs, such as the inability to adjust the interval, the small pressing force, the inconvenience of adjusting the pressing force, and the narrow range of application since it can be used only for workpieces of a specified length and width. [Solution] The induction heating brazing jig comprises a base 1 and a support clamping mechanism. The support clamping mechanism includes a first support clamping assembly 2 and a second support clamping assembly 3. Each of the first support clamping assembly and the second support clamping assembly includes a support part and an adjustable clamping part. The support part has a first end movably connected to the base and a second end connected to the adjustable clamping part. The adjustable clamping part includes a clamping body, a fixed member and an adjustment member. The clamping body has a clamping portion, the fixed member is installed at the clamping portion, the adjustment member is installed on top of the fixed member, the workpiece 6 is placed on the fixed member, and the adjustment member is movably installed on the clamping body.

Description

[Technical field]

[0001] The present application is in the technical field of welding fixtures, and more particularly, to induction brazing fixtures. [Background technology]

[0002] With the development of industrial technology, the requirements for the welding quality of various products are increasing, and the requirements for the dimensional accuracy, consistency and stability of welded joints are becoming more stringent. As a result, workpiece welding jigs are becoming increasingly important as tools for achieving precision welding.

[0003] Conventional induction brazing jigs have a simple structure, for example, standing blocks extending upward are installed on a base, and a screw-type pressing structure is used at the top of each standing block to press a workpiece against the top end of the standing block, and an opening is formed between the two standing blocks for arranging an induction coil, thereby performing induction brazing. Since the standing blocks and the base are fixedly connected, the interval cannot be adjusted, and the jig can only be applied to workpieces of the corresponding length, and the range of application is narrow. Since the pressing structure uses a simple screw-type pressing, the area of ​​the workpiece that receives the force is limited, the pressing force is small, and manual adjustment is inconvenient. During the induction heating process, the filler material between the joint surfaces of the workpieces is melted by heat, and at this time the upper workpiece is displaced downward and may be tilted forward and backward, so a separate forward and backward positioning mechanism is required. However, since the workpiece is subjected to a clamping force applied in advance in the initial state, and is constantly subjected to the clamping force during the welding process, no forward and backward displacement of the workpiece occurs after the filler metal melts, and in this case, the installed forward and backward positioning mechanism interferes with the workpiece having a relatively large width, so this jig is not suitable for the workpiece having a relatively large width.

[0004] Therefore, there is a need to design an induction brazing fixture that can solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above, in order to overcome the deficiencies of the prior art, the present invention provides an induction brazing jig that can effectively solve the problems existing in the conventional induction brazing jig, such as the inability to adjust the gap, the small pressing force, the inconvenience of adjusting the pressing force, and the fact that it can only be used for workpieces of a specified length and width, resulting in a narrow range of application. [Means for solving the problem]

[0006] The induction heating brazing jig according to the present invention is used for welding workpieces, and the induction heating brazing jig comprises a base and a support clamping mechanism, the support clamping mechanism including a first support clamping assembly and a second support clamping assembly installed at a distance from each other, each of the first support clamping assembly and the second support clamping assembly including a support part and an adjustable clamping part, the support part having a first end movably connected to the base and a second end connected to the adjustable clamping part, the adjustable clamping part including a clamping body, a fixing member and an adjustment member, the clamping body having a clamping portion, the fixing member being installed at the clamping portion and the adjustment member being installed on an upper part of the fixing member, the workpiece being placed on the fixing member, and the adjustment member being movably installed on the clamping body.

[0007] Preferably, the induction heating brazing jig further includes a spacer group, the workpiece includes a first member and a second member, a lower end surface of the first member is connected to an upper end surface of the second member in the vertical direction via a filler material, the first member is placed in a clamping portion of the first support clamping assembly via the spacer group, and the second member is placed in a clamping portion of the second support clamping assembly.

[0008] Preferably, the second end of the support part is removably connected to the adjustment clamp part by a connecting plate.

[0009] Preferably, a first movable member is provided on the base, the support portion includes a second movable member, the second movable member is provided on each of both sides of a first end of the support portion, and the support portion is movably connected to the base via the second movable member and the first movable member.

[0010] Preferably, there are a plurality of the first moving members, and the plurality of the first moving members are sequentially installed on the base at intervals.

[0011] Preferably, the adjustment member includes a drive adjustment member, an adjustment rod, and an adjustment block, and a first end of the adjustment rod is inserted through an upper end of the clamping body and connected to the drive adjustment member, and a second end of the adjustment rod is connected to the adjustment block.

[0012] Preferably, each of the first support and clamping assembly and the second support and clamping assembly further includes a lifting member, and the support portion is mounted on the base so that the height of the support portion can be adjusted by the lifting member.

[0013] Preferably, the first moving member is a slide groove into which a nut member is fitted, and the second moving member is provided with a connection hole, and is connected to the connection hole by a screw member and the nut member.

[0014] Preferably, the driving adjustment member is a rotating handle, the adjustment rod and the adjustment block have a screw-and-nut structure, and the adjustment rod is rotationally driven by rotating the rotating handle, thereby driving the adjustment block so as to move it closer to or away from the fixed member.

[0015] Preferably, a weld seam is formed between the first member and the second member, the filler metal is placed in the weld seam, the thickness of the weld seam is H, the thickness of the first member and the thickness of the second member are H1, the spacer group includes a first spacer having a thickness h1, a second spacer having a thickness h2, a third spacer having a thickness h3, ... an n-th spacer having a thickness hn, the first spacer, the second spacer ... the n-th spacer are sequentially placed between the fixing member and the lower end surface of the first member, and h1=H1, h2+h3+...+h n =H is satisfied. Effect of the Invention

[0016] In the induction brazing jig of the present invention, the first and second support clamping assemblies of the support clamping mechanism are adjustable on the base through the cooperation of the base and the support clamping mechanism, and the distance between the first and second support clamping assemblies can be adjusted to accommodate workpieces of different lengths, and the induction brazing jig can accommodate workpieces of different specifications, with a wide range of application and easy adjustment. The unitized design of the first and second support clamping assemblies can effectively reduce processing costs and achieve high accuracy. The adjustable clamping part can clamp the workpiece quickly and easily, and the cooperation of the fixing member and the adjustment member can provide a large clamping area during the clamping process, allowing the workpiece to be fully and sufficiently clamped, with a large clamping force, stable clamping, and easy adjustment. Also, because the adjustable clamping portion of the first support and clamping assembly and the adjustable clamping portion of the second support and clamping assembly can be adjusted separately, the thickness of the seam can be controlled.

[0017] In order to make the above objects, features and advantages of the present application more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. [Brief description of the drawings]

[0018] In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings used in the embodiments are briefly described below. The drawings described are only for illustrating some embodiments of the present application, and are not intended to limit the scope. Those skilled in the art can obtain other related drawings based on these drawings without using their inventive abilities. [Figure 1] 1 is a schematic diagram of an induction heating brazing jig according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a schematic diagram of an induction heating brazing jig according to an embodiment of the present invention. [Diagram 3] 1 is a front view of an induction heating brazing jig according to an embodiment of the present invention; [Figure 4] FIG. 2 is a schematic diagram of a workpiece and a spacer according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below clearly and simply with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, but not all of the embodiments. The components in the embodiments of the present application shown in the drawings can be arranged and designed in various arrangement ways. Therefore, the detailed description of the embodiments of the present application shown in the drawings only shows selected embodiments of the present application, and does not limit the scope of the present application to be protected. All embodiments obtained by a person skilled in the art based on the embodiments of the present application without using any inventive ability belong to the protection scope of the present application.

[0020] In the description of the embodiments of this application, the directions or positional relationships expressed by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the drawings or are the normal arrangement directions or positional relationships of the products related to this application, and are merely for the purpose of simply and concisely explaining this application, and do not necessarily express or imply that the relevant devices or elements have a specific direction, or are configured or operated in a specific direction, and therefore do not limit this application. In addition, terms such as "first", "second", and "third" are merely for the purpose of distinction and description, and do not express or imply relative importance.

[0021] Additionally, terms such as "horizontal" and "vertical" do not mean that a component is placed absolutely horizontally or vertically, but may be slightly tilted. For example, "horizontal" means that the orientation of the component is merely more horizontal than "vertical," and does not require that the component be completely horizontal, but may be slightly tilted.

[0022] In the description of the embodiments of the present application, unless otherwise specified, the terms "installation", "attachment", "communication" and "connection" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may be mechanically connected or electrically connected. They may also be directly connected, indirectly connected via an intermediate object, or the insides of two elements may be connected. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0023] As shown in Figs. 1 to 4, the induction heating brazing jig according to the present invention is used for brazing work, and includes a base 1 and a supporting and clamping mechanism.

[0024] Hereinafter, specific structures of the base 1 and the supporting and clamping mechanism of the induction heating brazing jig will be described with reference to Figs.

[0025] As shown in Figs. 1 to 3, in the embodiment, the support and clamping mechanism includes a first support and clamping assembly 2 and a second support and clamping assembly 3 that are installed with a gap therebetween, and the first support and clamping assembly 2 and the second support and clamping assembly 3 are configured to support and clamp both ends of the workpiece 6 to be welded, respectively, so that the workpiece 6 is held by the induction heating brazing jig and brazed. The gap provided between the first support and clamping assembly 2 and the second support and clamping assembly 3 is used for installing the induction coil 10, and can also contribute to mounting workpieces of different lengths. The first support and clamping assembly 2 and the second support and clamping assembly 3 can be unitized members, which can contribute to mounting and removal, ensure precision, contribute to maintenance and replacement, and contribute to clamping the workpiece 6 at low cost.

[0026] Specifically, each of the first support and clamping assembly 2 and the second support and clamping assembly 3 includes a support part 4 and an adjustable clamping part. A first end of the support part 4 is movably connected to the base 1, and a second end of the support part 4 is connected to the adjustable clamping part. The first support and clamping assembly 2 and the second support and clamping assembly 3 each change their position on the base 1 by the support part 4, thereby adjusting the distance between the first support and clamping assembly 2 and the second support and clamping assembly 3, and thereby can accommodate workpieces 6 of different lengths.

[0027] Furthermore, the adjustable clamping unit includes a clamping body 501, a fixed member 502, and an adjustment member, a clamping portion is provided in the clamping body 501, and the work 6 is clamped in the clamping portion. The fixed member 502 is installed in the clamping portion, and the fixed member 502 can be understood to be the lower end portion of the clamping portion, and the work 6 may be placed on the fixed member 502, and one end surface of the work 6 may contact the fixed member 502 in the clamping portion. The adjustment member is installed on the upper portion of the fixed member 502 and is movably installed on the clamping body 501. When the work 6 is clamped, the position of the adjustment member is changed so that the adjustment member approaches the fixed member 502 and contacts the other end surface of the work 6, thereby realizing clamping. In addition, the opening direction of the clamping portion is shifted from the moving direction of the first support clamping assembly 2 and the second support clamping assembly 3, which can contribute to the insertion and removal of the work.

[0028] In this way, the first and second support clamping assemblies 2 and 3 of the support clamping mechanism are installed on the base 1 in an adjustable position by the cooperation of the base 1 and the support clamping mechanism, and the distance between the first and second support clamping assemblies 2 and 3 can be adjusted to suit workpieces of different lengths, so that the induction brazing jig can accommodate workpieces 6 of different specifications, and has a wide range of application and can be easily adjusted. The unitized design of the first and second support clamping assemblies 2 and 3 can effectively reduce processing costs and achieve high accuracy. The adjustable clamping part can clamp the workpiece 6 quickly and easily, and the cooperation of the fixing member 502 and the adjustment member can provide a large clamping area during the clamping process of the workpiece 6, allowing the workpiece 6 to be fully and sufficiently clamped, and a large clamping force can be stably clamped and easily adjusted. Also, since the adjustable clamping portion of the first support and clamping assembly 2 and the adjustable clamping portion of the second support and clamping assembly 3 can be adjusted separately, the thickness of the brazed joint can be controlled.

[0029] Preferably, in the embodiment, the clamping body 501 and the fixing member 502 are integrally molded, and the integrally molded clamping body 501 and fixing member 502 have a U-shaped structure. In this way, the adjustable clamping unit has a relatively small number of parts as a whole, which contributes to the assembly of the adjustable clamping unit and the adjustment by the adjustment member.

[0030] 1 to 4, in the embodiment, the induction heating brazing jig further includes a spacer group, and the workpiece 6 includes a first member 601 and a second member 602. In the vertical direction (here, the vertical direction means a direction from bottom to top or from top to bottom in FIG. 4), the lower end surface of the first member 601 is connected to the upper end surface of the second member 602 via a filler material, the first member 601 is placed at a clamping portion of the first support and clamping assembly 2 via the spacer group, and the second member 602 is placed at a clamping portion of the second support and clamping assembly 3. An induction coil 10 is placed at the position where the filler material is placed, thereby performing induction heating brazing. Since the first member 601 and the second member 602 are respectively installed in the adjustable clamping portion of the first support clamping assembly 2 and the adjustable clamping portion of the second support clamping assembly 3, by adjusting the positions of the clamped first member 601 and second member 602, it is possible to control the thickness of the brazed joint at the connection point between the first member 601 and the second member 602.

[0031] Preferably, as shown in Figs. 1 to 4, in the embodiment, the second end of the support part 4 is detachably connected to the adjustable clamping part by a connecting plate 8. Specifically, in the embodiment, the support part 4 and the adjustable clamping part are both block-shaped structures, and these two block-shaped structures are connected by the connecting plate 8. Connection screws are installed at both ends of the connecting plate 8, and both ends of the connecting plate 8 are connected to the support part 4 and the adjustable clamping part, respectively, to realize the fixation of the support part 4 and the adjustable clamping part. The support part 4 and the adjustable clamping part that are detachably connected can meet the requirement of unitization, thereby further improving the accuracy of use of both, and the adjustable clamping part with different specifications can be replaced as necessary to further accommodate workpieces 6 with different specifications, and the range of application is wide.

[0032] Preferably, in another embodiment, the support 4 and the adjustable clamp are integrally molded members, which contributes to installation, replacement and maintenance, and eliminates the need for the connecting plate 8, thereby reducing the number of parts. When the support 4 and the adjustable clamp are integrally molded, the clamping portion is required to have a specific height to avoid interference with the induction coil 10.

[0033] 1 and 2, in the embodiment, a first moving member 901 is installed on the base 1, the support 4 includes a second moving member 902, and the second moving member 902 is installed on each of both sides of the first end of the support 4, and the support 4 is movably connected to the base 1 via the second moving member 902 and the first moving member 901. The position of the support 4 is adjustable on the base 1, so that it can accommodate workpieces 6 of different lengths. The first moving member 901 can be elongated, arc-shaped, or other shapes, and the elongated first moving member 901 corresponds to the elongated workpiece 6, and the arc-shaped first moving member 901 corresponds to the arc-shaped workpiece 6, and the first moving member 901 of a corresponding shape can be selected according to the shape of the workpiece 6 to realize clamping of workpieces 6 of different shapes.

[0034] 1 and 2, in the embodiment, there are preferably a plurality of first moving members 901, and the plurality of first moving members 901 are sequentially installed at intervals on the base 1. In this way, a user can mount the first supporting and clamping assembly 2 and the second supporting and clamping assembly 3 at different positions to meet the clamping requirements for workpieces 6 of different shapes.

[0035] 1 to 4, in the embodiment, the adjustment member includes a drive adjustment member 503, an adjustment rod 504, and an adjustment block 505, and a first end of the adjustment rod 504 is inserted through an upper end of the clamping body 501 and connected to the drive adjustment member 503, and a second end of the adjustment rod 504 is connected to the adjustment block 505. A user can adjust the adjustment rod 504 by the drive adjustment member 503 to move and drive the adjustment block 505, thereby realizing clamping of the workpiece 6.

[0036] Preferably, in other embodiments, when spacers cannot be used to adjust the height at which the workpiece 6 is positioned, a lifting member (not shown) can be installed. A lifting member is installed in each of the first support clamping assembly 2 and the second support clamping assembly 3, and the support part 4 is installed on the base 1 so that the height can be adjusted by the lifting member. Specifically, the lifting member can be a screw guide rail or a cylinder for vertical movement, and the relative position between the first member 601 and the second member 602 can be changed by adjusting the position of the clamping part with the lifting member to achieve subsequent brazing.

[0037] Preferably, as shown in Figs. 1 to 3, in the embodiment, the first moving member 901 is a slide groove into which a nut member is fitted, and the second moving member 902 is provided with a connection hole, which is connected to the connection hole by a screw member and a nut member. The second moving member 902 and the support part 4 may be removably connected or may be integrally molded. If the second moving member 902 and the support part 4 are formed as a removable connection structure, it can contribute to adjustment and has high manufacturing accuracy. If the second moving member 902 and the support part 4 are integrally molded, it can contribute to installation and replacement, and the user can specifically select according to their needs.

[0038] When the screw member and the nut member are screwed together, the first support clamping assembly 2 and the second support clamping assembly 3 are fixed, and the screw member and the nut member are unscrewed but not separated, and the positions of the first support clamping assembly 2 and the second support clamping assembly 3 can be adjusted along the slide groove.

[0039] Preferably, in another embodiment, the first movable member 901 is a slide rail, and the second movable member 902 is a slide block, and the connection between the slide block and the slide rail can realize adjustment of the respective positions of the first support clamping assembly 2 and the second support clamping assembly 3.

[0040] Preferably, in an embodiment as shown in Figures 1 to 3, the drive adjustment member 503 is a rotating handle, and the adjustment rod 504 and the adjustment block 505 have a screw-and-nut structure, and by rotating the rotating handle, the adjustment rod 504 is rotationally driven, thereby driving the adjustment block 505 so as to move closer to or away from the fixed member 502.

[0041] Preferably, in another embodiment, the driving adjustment member 503 is a cylinder, the adjustment rod 504 is an extendable rod, and the adjustment block 505 is connected to the cylinder via the extendable rod, and by driving the cylinder, the adjustment block 505 is moved closer to or away from the fixed member 502, thereby realizing clamping of the workpiece 6.

[0042] 4, in the embodiment, the representative workpiece 6 is two elongated members connected vertically, and a filler material is placed between the connecting surfaces of the two elongated members, and the filler material is melted and formed into a seam. That is, a welded seam is formed between a first member 601 and a second member 602, the filler material is placed in the welded seam, the thickness of the welded seam is H, and the thickness of the first member 601 and the thickness of the second member 602 are H1.

[0043] The spacer group may include a first spacer 701 having a thickness h1, a second spacer 702 having a thickness h2, a third spacer having a thickness h3, ... an n-th spacer having a thickness hn (in the embodiment, two spacers, the first spacer 701 and the second spacer 702, are taken as an example). The first spacer 701, the second spacer 702, ... the n-th spacer are installed between the fixing member 502 and the lower end surface of the first member 601 in this order.

[0044] In FIG. 4, it is required that the thickness of the first spacer 701 and the thickness of the second member 602 for backing the first member 601 are the same, that is, h1=H1.

[0045] Furthermore, in FIG. 4, if the thickness of the weld seam and the thickness of the second spacer 702 are the same and more spacers are used, then h2+h3+...+h n =H.

[0046] The process of using the induction heating brazing jig is as follows: First, the positions of the first support clamping assembly 2 and the second support clamping assembly 3 are adjusted by the first moving member 901 and the second moving member 902 so that the distance between the first support clamping assembly 2 and the second support clamping assembly 3 meets the requirements for clamping the workpiece 6, and then the first member 601 of the workpiece 6 is placed at the clamping position of the first support clamping assembly 2, and the second member 602 of the workpiece 6 is placed at the clamping position of the second support clamping assembly 3. In this embodiment, when the first member 601 is placed, a spacer group is placed between the first member 601 and the fixed member 502, and the arrangement of the spacer group and the thickness of the weld seam are h2+h3+...+h n =H is satisfied, and the parallel connection of the workpiece 6 is guaranteed. Furthermore, the adjustment clamping portion is adjusted so that the workpiece 6 can be clamped by the adjustment member and the fixing member 502, and after the adjustment is completed, brazing is performed.

[0047] In the induction brazing jig, the first and second support clamping assemblies of the support clamping mechanism are adjustably installed on the base through the cooperation of the base and the support clamping mechanism, thereby adjusting the distance between the first and second support clamping assemblies, thereby accommodating workpieces of different lengths, and the induction brazing jig can accommodate workpieces of different specifications, with a wide range of application and easy adjustment. The unitized design of the first and second support clamping assemblies can effectively reduce processing costs and achieve high accuracy. The adjustable clamping part can clamp the workpiece quickly and easily, and the cooperation of the fixing member and the adjustment member provides a large clamping area during the clamping process, allowing the workpiece to be fully and sufficiently clamped, with a large clamping force, stable clamping, and easy adjustment. Also, because the adjustable clamping portion of the first support and clamping assembly and the adjustable clamping portion of the second support and clamping assembly can be adjusted separately, the thickness of the seam can be controlled.

[0048] The above examples are merely specific embodiments for explaining the technical solution of the present application, and the scope of protection of the present application is not limited thereto. The above examples are used to describe the present application in detail, but those skilled in the art may make improvements or modifications to the technical solutions described in the above examples within the technical scope of the present application, or may make equivalent substitutions for some of the technical features therein. These improvements, modifications or substitutions do not deviate the essence of the technical solution from the spirit and scope of the technical solutions of the examples of the present application of the present disclosure, and all fall within the scope of protection of the present application. Therefore, the scope of protection of the present application is subject to the proposed amendments to the claims. [Explanation of symbols]

[0049] 1 Base 2 First Support Clamp Assembly 3 Secondary support clamp assembly 4 Support part 501 Clamping body 502 Fixing member 503 Drive adjustment member 504 Adjustment rod 505 Adjustment Block 6 Work 601 First member 602 Second member 701 First Spacer 702 Second Spacer 8 Connection plate 901 First moving member 902 Second moving member 10 Induction Coil

Claims

1. An induction heating brazing jig used for welding a workpiece, comprising: The induction heating brazing jig includes a base and a support clamping mechanism, the support clamping mechanism including a first support clamping assembly and a second support clamping assembly spaced apart from each other, the first support clamping assembly and the second support clamping assembly each including a support portion and an adjustable clamping portion, the support portion having a first end movably connected to the base and a second end connected to the adjustable clamping portion, The adjustable clamping unit includes a clamping body, a fixed member, and an adjustment member. A clamping portion is provided in the clamping body. The fixed member is installed in the clamping portion. The adjustment member is installed on an upper portion of the fixed member. The workpiece is placed on the fixed member. The adjustment member is movably installed on the clamping body.

2. An induction heating brazing jig comprising:

2. The induction heating brazing jig further includes a spacer group, the work includes a first member and a second member, a lower end surface of the first member is connected to an upper end surface of the second member in a vertical direction via a filler material, the first member is placed in a clamping portion of the first support clamping assembly via the spacer group, and the second member is placed in a clamping portion of the second support clamping assembly.

2. The induction heating brazing jig according to claim 1 .

3. A second end of the support portion is removably connected to the adjustment clamp portion by a connecting plate.

2. The induction heating brazing jig according to claim 1 .

4. A first moving member is installed on the base, the support portion includes a second moving member, the second moving members are installed on both sides of a first end of the support portion, and the support portion is movably connected to the base via the second moving member and the first moving member.

2. The induction heating brazing jig according to claim 1 .

5. The first moving members are provided in a plurality, and the first moving members are sequentially installed on the base at intervals.

5. The induction heating brazing jig according to claim 4.

6. The adjustment member includes a drive adjustment member, an adjustment rod, and an adjustment block, and a first end of the adjustment rod is inserted through an upper end of the clamping body and connected to the drive adjustment member, and a second end of the adjustment rod is connected to the adjustment block.

2. The induction heating brazing jig according to claim 1 .

7. Each of the first support and clamp assembly and the second support and clamp assembly further includes a lifting member, and the support portion is installed on the base so that the height of the support portion can be adjusted by the lifting member.

2. The induction heating brazing jig according to claim 1 .

8. The first moving member is a slide groove into which a nut member is fitted, and the second moving member is provided with a connection hole, and is connected to the connection hole by a screw member and the nut member.

5. The induction heating brazing jig according to claim 4.

9. The driving adjustment member is a rotary handle, the adjustment rod and the adjustment block have a screw-nut structure, and the adjustment rod is rotationally driven by rotating the rotary handle, thereby driving the adjustment block to approach the fixed member or move away from the fixed member.

7. The induction heating brazing jig according to claim 6.

10. A weld seam is formed between the first member and the second member, the filler metal is placed in the weld seam, the weld seam has a thickness H, and the thickness of the first member and the thickness of the second member are H １ and The spacer group has a thickness h １ The first spacer has a thickness h ２ A second spacer having a thickness h ３ Third spacer: thickness h ｎ the first spacer, the second spacer, ... the nth spacer are sequentially disposed between the fixing member and the lower end surface of the first member, h １ =H １ , h ２ +h ３ +...+h ｎ = H is satisfied 3. The induction heating brazing jig according to claim 2.

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