CN214769520U

CN214769520U - Vacuum brazing tool

Info

Publication number: CN214769520U
Application number: CN202023320633.0U
Authority: CN
Inventors: 金李梅; 罗良良; 卓晓; 李江; 陈融
Original assignee: HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO Ltd
Current assignee: HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-19
Anticipated expiration: 2030-12-31

Abstract

The application relates to a vacuum brazing tool, including a backup pad, two fixed position base plates, the backup pad is rectangle, characterized by: the supporting plate is provided with a plurality of paired base material fixing areas, each base material fixing area is provided with a plurality of rows of transverse threaded through holes, and an open slot is formed between each pair of base material fixing areas. Two fixed position base plates are fixed on the supporting plate, the outer side faces of the two fixed position base plates are respectively flushed with the corresponding side faces of the supporting plate, two base materials of the brazing base material group are respectively fixed on two paired base material fixing areas through screws, opposite ends of the two base materials are aligned with the longitudinal center lines of the corresponding open grooves, all the thread through holes are the same, and the screws are matched with the thread through holes. And each base material fixing area is provided with two rows of transverse threaded through holes and eight rows of longitudinal threaded through holes. The utility model has the advantages of this application structure is succinct, convenient to use, and the counterpoint is accurate, and is fixed reliable, and the uniformity is good.

Description

Vacuum brazing tool

Technical Field

The application relates to a vacuum brazing tool which is mainly suitable for butt joint or lap joint brazing of materials with fixed sizes.

Background

In the performance detection of brazing filler metal and welded sample pieces, the quality of a brazed joint is particularly critical, in order to ensure the quality of the brazed joint, a tool is usually required to perform an auxiliary experiment in the brazing process, the structure of the currently used vacuum butt joint/lap joint tool is complex, or the alignment between two brazing base metals is difficult to be accurate and is not reliable enough in fixation, the brazing filler metal is easy to flow after being melted, so that the brazing rate is low, and the quality of the brazed joint is influenced.

Disclosure of Invention

The technical problem that this application was solved is to overcome the above-mentioned not enough that exists among the prior art, and provides a structure succinct, convenient to use, and the counterpoint is accurate, and is fixed reliable, the vacuum brazing frock that the uniformity is good.

The technical scheme adopted by the application for solving the technical problems is as follows:

a vacuum brazing tool comprises a support plate and two fixing position base plates, wherein the support plate is rectangular, the brazing base material group comprises a plurality of base material fixing areas, wherein the base material fixing areas are arranged on a supporting plate in pairs, each base material fixing area is provided with a plurality of rows of threaded through holes which are arranged in a corresponding mode in the transverse and longitudinal directions, an open slot is formed between each pair of base material fixing areas, two fixing position base plates are fixed on the supporting plate, the outer side faces of the two fixing position base plates are respectively flush with the corresponding side faces of the supporting plate, two base materials (two brazing base materials to be brazed together) of the brazing base material group are respectively fixed on the two base material fixing areas in pairs through screws, opposite ends of the two base materials are aligned with the longitudinal center line of the corresponding open slot (namely the opposite ends of the two brazing base materials are tightly attached to and located in the centers of the left and right directions of the open slot), all the threaded through holes are the same, and the screws are matched with the threaded through holes.

The brazing filler metal is characterized in that the number of the base metal fixing areas is four (two pairs), two rows of transverse threaded through holes and eight rows of longitudinal threaded through holes are formed in each base metal fixing area, the threaded through holes are transversely and uniformly arranged, and brazing filler metals are preset at joints of two base metal of a brazing base metal group.

The transverse distance between the nut parts of two screws which are transversely adjacent and used for fixing the same brazing base material is smaller than the transverse width of the brazing base material, and the distance between two corresponding threaded through holes of the two screws is not smaller than the transverse width of the brazing base material.

The open slot transversely runs through the two sides of the supporting plate in the up-down direction.

In the present application

Compared with the prior art, the application has the following advantages and effects: the structure is succinct, convenient to use, and the counterpoint is accurate, and is fixed reliable, and the uniformity is good.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present application and are not limited to the following examples. The directions described in the present application are relative to fig. 1, and the left-right direction in fig. 1 is a longitudinal direction, and the up-down direction is a transverse direction.

Referring to fig. 1, the vacuum brazing tool of the embodiment includes a supporting plate 1, two fixing substrates 2 and a plurality of screws 3. The supporting plate 1 is rectangular, a plurality of paired (i.e., two are in a group, so must be even) base material fixing areas 11 are arranged on the supporting plate 1, a plurality of rows (usually even rows) of threaded through holes 12 which transversely and longitudinally correspond and are transversely and uniformly distributed are arranged on each base material fixing area 11, and an open slot 13 is arranged between the paired two base material fixing areas 11, so that brazing filler metal between the two base materials is not contacted with a tool after being melted, and the quality of fixing and connecting the base materials is prevented from being influenced. The two fixed position base plates 2 are fixed on the supporting plate 1 by screws 3, and the outer side surfaces 21 of the fixed position base plates 2 are respectively flush with the corresponding side surfaces of the supporting plate 1.

All the threaded through holes 12 are the same, all the screws 3 are the same, and the screws 3 are matched with the threaded through holes 12.

The opening grooves 13 may be a plurality of, and this embodiment has three opening grooves (a first opening groove 131, a second opening groove 132, and a third opening groove 133), four base material fixing areas 11, where each base material fixing area 11 has two rows of transverse threaded through holes 12, and each row of threaded through holes 12 is 8 through holes uniformly distributed (that means that transverse distances between adjacent threaded through holes 12 are the same).

According to the application, the opening grooves 13 transversely penetrate through two sides of the supporting plate 1, namely, the opening grooves 13 of the tool form a passage, and molten brazing filler metal is easy to remove after the opening grooves 13 are solidified.

In this embodiment, the left end of the first brazing base material 41 abuts against the right side of the left fixing position substrate 2, and is screwed and fixed on the support plate 1 through the screw 3, the right side of the first brazing base material 41 is flush with the longitudinal center line of the corresponding open slot (the first open slot 131), the corresponding second brazing base material 42 is arranged at the mirror image position of the first brazing base material 41 relative to the longitudinal center line of the first open slot 131 and is fixed by the screw 3, so that a plurality of groups of brazing base material groups 4 to be brazed are formed, and the brazing filler metal is preset at the joint 43 of the opposite ends (butt joint/lap joint) of the first brazing base material 41 and the second brazing base material 42. The relative fixing preset action of the brazing base materials is repeated by a plurality of brazing base material groups. And finally, placing the assembled vacuum brazing tool clamp of the brazing base metal group 4 into a vacuum brazing furnace for brazing.

The transverse distance between the nut parts 31 of the two transversely adjacent screws 3 for fixing the same base material to be brazed is smaller than the transverse width of the brazing base material, that is, the nut parts 31 of the two transversely adjacent screws 3 for fixing the same base material to be brazed (for example, the two screws on the right side of the left corner mark 41 in fig. 1) can press the base material, and the distance between the two corresponding transversely adjacent threaded through holes 12 is not smaller than the transverse width of the base material (that is, the screw parts of the two screws 3 can be screwed into the two corresponding threaded through holes 12 from the transverse sides of the brazing base material respectively, and the base material does not need to be damaged), so that the base material can be clamped between the two transversely adjacent screws 3 for fixing.

In the embodiment, the designed vacuum brazing tool can be used for brazing a plurality of brazing base metal groups to be brazed at one time, and the consistency of brazing conditions is ensured.

All simple variations and combinations of the technical features and technical solutions of the present application are considered to fall within the scope of the present application.

Claims

1. The utility model provides a vacuum brazing frock, includes a backup pad, two fixed position base plates, the backup pad is rectangle, characterized by: be provided with a plurality of mated parent metal fixed area in the backup pad, be provided with a plurality of rows of horizontal screw through-holes on every parent metal fixed area, every is provided with the open slot between every pair of parent metal fixed area, two fixed position base plates are fixed in the backup pad, two fixed position base plate lateral surfaces flush with the corresponding side of backup pad respectively, two parent metals of brazing parent metal group are respectively through the screw fixation on two mated parent metal fixed areas and two parent metal looks remote sites all align with the vertical central line of corresponding open slot, all screw through-holes are the same, screw and screw through-hole cooperation.

2. The vacuum brazing tool according to claim 1, wherein: the number of the base material fixing areas is four, and each base material fixing area is provided with two rows of transverse threaded through holes and eight rows of longitudinal threaded through holes.

3. The vacuum brazing tool according to claim 2, wherein: the threaded through holes are transversely and uniformly arranged.

4. The vacuum brazing tool according to claim 1, wherein: the transverse distance between the nut parts of two screws which are transversely adjacent and used for fixing the same base material is smaller than the transverse width of the base material, and the distance between two corresponding threaded through holes of the two screws is not smaller than the transverse width of the base material.

5. A vacuum brazing tool according to any one of claims 1 to 4, wherein: the open slot transversely runs through the two sides of the supporting plate in the up-down direction.