Brazing filling tool and filling method

Abstract

The invention relates to the technical field of industrial manufacturing, in particular to a brazing filler tool and a filler method.The brazing filler tool and the filler method can achieve the effects of clamping and positioning parts to be brazed and accurately filling welding flux, the brazing filler tool comprises a support mechanism, and the support mechanism comprises a bottom plate and a vertical frame arranged at the top of the bottom plate; the vertical frame provides support for the whole tool and parts clamped by the tool. The upper clamping mechanism can be used for clamping the upper half section of the part to be brazed, so that filling of the welding flux is facilitated; after the lower half section of the to-be-brazed part is fixed to the bottom supporting mechanism, the gap between the lower half section part and the upper half section part can be adjusted through the bottom supporting mechanism; and the filling mechanism is connected with the upper half part and the lower half part, meanwhile, the filling mechanism further wraps a gap between the upper half part and the lower half part, the gap is filled with welding flux, and then the whole tool and the parts can be put into a brazing furnace together for brazing.

Description

Technical Field

[0001] The invention relates to the technical field of industrial manufacturing, in particular to a brazing filler tool and a filler method. Background Art

[0002] Brazing is a welding technology for connecting metals. It uses a brazing filler metal (filler metal) with a melting point lower than that of the materials being connected to fill the gap in the joint. During the brazing process, the brazing filler metal melts and flows into the gap in the joint, while the parent material (the metal being connected) does not melt. After the brazing is completed, the brazing filler metal solidifies to form a strong joint. In the production of precision parts, brazing is often required. For example, for aircraft engine stator blades, a single stator blade must be brazed together to form a ring segment after casting. However, these parts are often special-shaped parts. It is difficult to precisely assemble the complex-shaped parts to be brazed, and it is difficult to quantitatively add paste brazing filler metal. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention is proposed.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a brazing filler tool, comprising:

[0005] A support mechanism, the support mechanism comprising a bottom plate and a stand arranged on the top of the bottom plate; an upper clamping mechanism; a bottom support mechanism; and a filling mechanism;

[0006] Wherein, the filling mechanism includes a feeding structure, and the feeding structure includes a feeding pipe.

[0007] As a preferred solution of the brazing filler tooling of the present invention, the upper clamping mechanism includes a clamping ring arranged on the side of the stand, the outer wall of the clamping ring is provided with a threaded rod, and the side of the threaded rod is provided with a chuck.

[0008] As a preferred solution of the brazing filler tooling of the present invention, the bottom support mechanism includes a bottom cylinder arranged on the top of the bottom plate, a telescopic platform is arranged inside the bottom cylinder, and fixing bolts are arranged on the outer wall of the telescopic platform.

[0009] As a preferred solution of the brazing filler tooling of the present invention, the filler mechanism includes a flexible collar arranged on the side of the stand, a through pipe arranged on the side of the flexible collar and a shaping structure arranged on the bottom of the flexible collar.

[0010] As a preferred solution of the brazing filler tooling of the present invention, one end of the through pipe penetrates the outer wall of the flexible collar and extends into the interior of the flexible collar.

[0011] As a preferred solution of the brazing filler tooling described in the present invention, the feeding structure includes a distribution pipe arranged above the flexible sleeve, the bottom of the distribution pipe is connected to the lower feed pipe, the top of the lower feed pipe is connected to the distribution pipe, and a feeding pipe is arranged on the side of the distribution pipe, and the feeding pipe is connected to the distribution pipe.

[0012] As a preferred solution of the brazing filler tooling of the present invention, there are multiple feed pipes, and the bottom of each feed pipe penetrates the outer wall of the flexible collar and extends into the interior of the flexible collar.

[0013] As a preferred solution of the brazing filler tooling of the present invention, the shaping structure includes a connecting plate, a plurality of the connecting plates are connected end to end to form a connecting ring, a support rod is provided on the side of the connecting plate, a surrounding foil is provided on the inner wall of the support rod, and a flexible bottom ring is provided at the bottom of the support rod.

[0014] The present invention also discloses a filling method, wherein the brazing filling tool described in any one of the above items further comprises:

[0015] Place the bottom section parts on the telescopic table;

[0016] Clamp the upper part onto the upper clamping mechanism;

[0017] Adjust the height of the telescopic table to adjust the gap between the two parts;

[0018] Wrap the bottom end of the upper part with a flexible collar, and wrap the top end of the bottom part with a flexible bottom ring;

[0019] Filling the paste solder used for brazing into the filler mechanism;

[0020] Put the tooling and parts into the brazing furnace for brazing.

[0021] As a preferred embodiment of the brazing filling method of the present invention, the paste solder used for brazing is filled into the filling mechanism, including:

[0022] When brazing parts with regular shapes, inject solder directly from the through-tube;

[0023] When brazing irregularly shaped parts, the solder is injected from the feed structure.

[0024] The beneficial effects of the present invention are as follows: the tooling can more accurately complete the solder filling during the brazing of special-shaped parts by utilizing the filling mechanism, thereby preventing poor welding quality caused by insufficient filling and waste caused by excessive solder filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the bottom support mechanism in the present invention.

[0028] Figure 3 It is a structural schematic diagram of the packing mechanism in the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, reference Figures 1 to 3 , which is the first embodiment of the present invention, provides a brazing filler tooling, which can achieve the effect of clamping and positioning the parts to be brazed and filling the solder more accurately, and includes:

[0033] The support mechanism 100 includes a base plate 101 and a stand 102 disposed on the top of the base plate 101, and the stand 102 provides support for the entire tooling and the parts clamped by the tooling; and,

[0034] An upper clamping mechanism 200, which can clamp the upper half of the part to be brazed to facilitate the filling of solder; and

[0035] The bottom support mechanism 300 is used to fix the lower half of the part to be brazed on the bottom support mechanism 300, and the gap between the lower half of the part and the upper half of the part can be adjusted by using the bottom support mechanism 300; and

[0036] The filling mechanism 400 connects the upper part box and the lower part. The filling mechanism 400 also covers the gap between the upper and lower parts. The solder is filled into the gap. The entire tooling and parts can be put into the brazing furnace for brazing. The filling mechanism 400 can also accurately fill in a certain amount of solder.

[0037] Specifically, first fix the lower half of the part to be brazed on the bottom support mechanism 300, clamp the upper half of the part on the upper clamping mechanism 200, use the bottom support mechanism 300 to adjust the gap between the lower half and the upper half, use the filler mechanism 400 to wrap the gap between the upper and lower half parts, fill the solder into the gap, and put the entire tooling and parts into the brazing furnace for brazing.

[0038] Example 2, reference Figures 1 to 3 , which is the second embodiment of the present invention. Different from the previous embodiment, the upper clamping mechanism 200 includes a clamping ring 201 arranged on the side of the stand 102, and the outer wall of the clamping ring 201 is provided with a threaded rod 202, and the threaded rod 202 is threadedly connected with the clamping ring 201, and the side of the threaded rod 202 is provided with a chuck 203. The upper half of the part is placed in the middle of the clamping ring 201, and the threaded rod 202 is rotated to clamp the upper half of the part with the chuck 203, so that the clamping and fixing of the upper half of the part can be completed.

[0039] Furthermore, the bottom support mechanism 300 includes a bottom tube 301 arranged on the top of the bottom plate 101, and a telescopic platform 302 is arranged inside the bottom tube 301. The telescopic platform 302 can slide up and down above the bottom tube 301, and the height of the telescopic platform 302 can be adjusted. The outer wall of the telescopic platform 302 is provided with fixing bolts 303. After the telescopic platform 302 is adjusted to a specified appropriate height, the fixing bolts 303 can be used to fix the telescopic platform 302.

[0040] Furthermore, the filling mechanism 400 includes a flexible ring 401 arranged on the side of the stand 102, a through pipe 402 arranged on the side of the flexible ring 401, a feeding structure 403 arranged above the flexible ring 401 and a shaping structure 404 arranged at the bottom of the flexible ring 401. One end of the through pipe 402 penetrates the outer wall of the flexible ring 401 and extends into the interior of the flexible ring 401. Preferably, the flexible ring 401 can be an aluminum foil or a stainless steel foil, which can fit the outer wall of the special-shaped parts more tightly to adapt to the wrapping of irregularly shaped parts and ensure the accurate quantitative filling of solder.

[0041] Furthermore, the feed structure 403 includes a feed distribution pipe 403a arranged above the flexible sleeve 401, a feed discharge pipe 403b is arranged at the bottom of the feed distribution pipe 403a, the top of the feed discharge pipe 403b is connected with the feed distribution pipe 403a, a feed pipe 403c is arranged on the side of the feed distribution pipe 403a, the feed discharge pipe 403c is connected with the feed distribution pipe 403a, there are multiple feed discharge pipes 403b, and the bottom of the feed discharge pipe 403b penetrates the outer wall of the flexible sleeve 401 and extends into the interior of the flexible sleeve 401.

[0042] Furthermore, the shaping structure 404 includes a connecting plate 404a, and multiple connecting plates 404a are connected end to end to form a connecting ring. The connecting ring composed of the connecting plates 404a can adjust its shape to adapt to parts of various shapes. A support rod 404b is provided on the side of the connecting plate 404a, and a surrounding foil 404c is provided on the inner wall of the support rod 404b. A flexible bottom ring 404d is provided at the bottom of the support rod 404b. The flexible sleeve 401 tightly wraps the bottom end of the upper half of the part, and the flexible bottom ring 404d tightly wraps the top end of the lower half of the part, and then the connecting plate 404a and the support rod 404b are used to adjust the shape of the surrounding foil 404c to make it close to the cross-sectional shape of the part to be brazed.

[0043] Specifically, the upper half of the part to be brazed is clamped on the upper clamping mechanism 200, the required gap between the two parts is calculated, the lower half of the part is placed on the telescopic table 302, the gap between the two parts is adjusted, and the gap is wrapped with the filling mechanism 400. When filling the gap with solder, if the shape of the part is relatively regular, such as close to a circle or rectangle, the filling can be completed by directly filling the paste solder from the through pipe 402. However, if the shape of the part is irregular, the solder is directly filled from the through pipe 402. When the solder flows in the irregular surrounding foil 404c, it is not easy to fill it into each corner. Therefore, the distribution pipe 403a and multiple discharge pipes 403b are used to allow the solder to be dispersedly filled into the surrounding foil 404c, so that it can be filled into each irregular corner as much as possible to improve the brazing quality.

[0044] Example 3, reference Figures 1 to 3 , which is the third embodiment of the present invention, is different from the previous embodiment in that this embodiment provides a filling method, which includes a brazing filling tool according to any one of claims 1 to 8, and further includes,

[0045] Place the bottom section parts on the telescopic table 302;

[0046] Clamp the upper part onto the upper clamping mechanism 200;

[0047] Adjust the height of the telescopic table 302 to adjust the gap between the two parts;

[0048] Wrap the bottom end of the upper part with a flexible collar 401 and wrap the top end of the bottom part with a flexible bottom ring 404d;

[0049] Filling the paste solder used for brazing into the filling mechanism 400;

[0050] Put the tooling and parts into the brazing furnace for brazing.

[0051] Further, the solder paste used for soldering is filled into the filler mechanism 400, including:

[0052] When brazing parts with relatively regular shapes, the solder is directly injected from the through pipe 402;

[0053] When soldering irregularly shaped parts, solder is injected from the feed structure 403 .

[0054] Specifically, first determine the gap between the two parts that need to be welded, then calculate the amount of solder to be filled, and then fix the parts on the tooling, adjust the gap between the two parts, and use the filler mechanism 400 to fill the solder into the gap between the two parts.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0056] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0057] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A brazing filler tool, characterized in that: include, A support mechanism (100), the support mechanism (100) comprising a bottom plate (101) and a stand (102) arranged on the top of the bottom plate (101); an upper clamping mechanism (200); a bottom support mechanism (300); and a filling mechanism (400); Wherein, the filling mechanism (400) comprises a feeding structure (403), and the feeding structure (403) comprises a feeding pipe (403b).

2. The brazing filler tooling as claimed in claim 1, characterized in that: The upper clamping mechanism (200) comprises a clamping ring (201) arranged on the side of the stand (102), the outer wall of the clamping ring (201) is provided with a threaded rod (202), and the side of the threaded rod (202) is provided with a clamping head (203).

3. The brazing filler tooling as claimed in claim 2, characterized in that: The bottom support mechanism (300) comprises a bottom cylinder (301) arranged on the top of the bottom plate (101), a telescopic platform (302) is arranged inside the bottom cylinder (301), and a fixing bolt (303) is arranged on the outer wall of the telescopic platform (302).

4. The brazing filler tooling as claimed in claim 3, characterized in that: The filling mechanism (400) comprises a flexible sleeve (401) arranged on the side of the stand (102), a through pipe (402) arranged on the side of the flexible sleeve (401), and a shaping structure (404) arranged on the bottom of the flexible sleeve (401).

5. The brazing filler tooling as claimed in claim 4, characterized in that: One end of the through pipe (402) penetrates the outer wall of the flexible sleeve (401) and extends into the interior of the flexible sleeve (401).

6. The brazing filler tooling as claimed in claim 5, characterized in that: The feed structure (403) includes a feed distribution pipe (403a) arranged above the flexible sleeve (401), the bottom of the feed distribution pipe (403a) is connected to the lower feed pipe (403b), the top of the lower feed pipe (403b) is connected to the feed distribution pipe (403a), and a feed pipe (403c) is arranged on the side of the feed distribution pipe (403a), and the feed pipe (403c) is connected to the feed distribution pipe (403a).

7. The brazing filler tooling as claimed in claim 6, characterized in that: There are multiple feed pipes (403b), and the bottom of each feed pipe (403b) penetrates the outer wall of the flexible sleeve (401) and extends into the interior of the flexible sleeve (401).

8. The brazing filler tooling as claimed in claim 7, characterized in that: The shaping structure (404) comprises a connecting plate (404a), wherein a plurality of the connecting plates (404a) are connected end to end to form a connecting ring, a supporting rod (404b) is arranged on the side of the connecting plate (404a), a surrounding foil (404c) is arranged on the inner wall of the supporting rod (404b), and a flexible bottom ring (404d) is arranged at the bottom of the supporting rod (404b).

9. A packing method, characterized in that: A brazing filler tooling comprising any one of claims 1 to 8, further comprising: Placing the bottom section parts on the telescopic table (302); Clamping the upper part onto the upper clamping mechanism (200); Adjusting the height of the telescopic platform (302) to adjust the gap between the two parts; Wrapping the bottom end of the upper part with a flexible sleeve ring (401) and wrapping the top end of the lower part with a flexible bottom ring (404d); Filling the paste solder used for brazing into the filler mechanism (400); Put the tooling and parts into the brazing furnace for brazing.

10. The packing method according to claim 9, characterized in that: Filling the solder paste used for brazing into the filler mechanism (400) includes: When brazing parts with relatively regular shapes, the solder is directly injected from the through pipe (402); When brazing irregularly shaped parts, solder is injected from the feed structure (403).

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