CN219189061U

CN219189061U - Structure for reducing overflow accumulation of brazing filler metal during brazing

Info

Publication number: CN219189061U
Application number: CN202320155880.4U
Authority: CN
Inventors: 张运吉; 郭松; 刘湫浩
Original assignee: Guizhou Yonghong Radiator Co ltd
Current assignee: Guizhou Yonghong Radiator Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-16
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a structure for reducing overflow accumulation of brazing filler metal in brazing, which comprises a brazing matrix, wherein a mounting hole is formed in the brazing matrix, a nozzle is inserted into the mounting hole, a baffle ring structure for preventing the brazing filler metal from overflowing is arranged at the insertion end of the nozzle, and a brazing sheet is arranged in the baffle ring structure. The brazing sheet is placed in the baffle ring structure, and when brazing is performed, the brazing filler metal is blocked by the baffle ring structure in the melting process, so that the brazing filler metal is solidified in the baffle ring structure, and the problems of out-of-tolerance product surface roughness, poor external dimension, difficult repair and the like caused by overflow accumulation of the brazing filler metal are effectively avoided. The utility model has simple structure and high processing convenience, can effectively avoid overflow of solder in the brazing process, has good welding quality, saves repairing cost, can greatly improve the product percent of pass and has good economical practicability.

Description

Structure for reducing overflow accumulation of brazing filler metal during brazing

Technical Field

The utility model relates to a structure for reducing overflow accumulation of brazing filler metal in brazing, and belongs to the technical field of brazing product processing.

Background

As a processing technology of the existing radiator, the brazing is capable of effectively welding parts with different structural forms, has good reliability and high efficiency, and is widely applied to processing in the product fields of automobile water tanks, intercoolers, condensers, oil coolers and the like.

As shown in fig. 1, when the base metal 1.1 is brazed with the sleeve and the nozzle part 1.2, the brazing sheet 1.3 is directly sleeved at the welding end of the sleeve and the nozzle part 1.2, and the brazing sheet 1.3 is of a full-exposure structure, so that the brazing filler metal is uncontrollable from overflowing, and a part of the severe overflow condition can form brazing filler metal accumulation, so that the surface roughness of the product is out of tolerance, the external dimension is out of tolerance, reworking and repairing cannot be performed, and the product is scrapped.

Disclosure of Invention

In view of the above, the present utility model aims to provide a structure for reducing overflow accumulation of brazing filler metal in brazing, which can overcome the defects in the prior art.

The utility model aims at realizing the following technical scheme:

the utility model provides a brazing reduces excessive structure of piling up of solder, includes the brazing parent, is equipped with the mounting hole on the brazing parent, has the nozzle in the mounting hole joint, the nozzle grafting end is equipped with the stop ring structure that prevents the solder overflow, is equipped with the brazing sheet in the stop ring structure.

The baffle ring structure is a groove structure arranged at the plug-in end of the nozzle, and the outer diameter of the brazing sheet is slightly smaller than the inner diameter of the groove structure.

The groove structure is a sinking groove arranged at the shaft hole of the nozzle or the mounting hole of the brazing matrix.

The groove structure is a butt joint grooving structure with two halves oppositely arranged on the nozzle and the brazing matrix 1; the butt joint grooving structure is a U-shaped or triangular structure with two halves oppositely arranged.

The baffle ring structure is a hoop structure which is detachably sleeved on the outer side of the soldering lug.

The hoop structure is a clay hoop.

The hoop-shaped structure is a spliced clamp structure, the spliced clamp structure comprises two half-butted spliced elastic metal clamps, connecting lugs are arranged at the butt joint positions of the two half-butted spliced elastic metal clamps, and connecting bolts are arranged on the connecting lugs; the inner side walls of the two semi-elastic metal hoops are embedded with high temperature resistant plastics or rubber which is convenient for demoulding, and the butt joint parts of the two semi-elastic metal hoops are closely adhered.

Compared with the prior art, the structure for reducing the overflow accumulation of the brazing filler metal in the brazing comprises a brazing matrix, wherein a mounting hole is formed in the brazing matrix, a nozzle is inserted into the mounting hole, a stop ring structure for preventing the brazing filler metal from overflowing is arranged at the insertion end of the nozzle, and a brazing sheet is arranged in the stop ring structure. The brazing sheet is placed in the baffle ring structure, and when brazing is performed, the brazing filler metal is blocked by the baffle ring structure in the melting process, so that the brazing filler metal is solidified in the baffle ring structure, and the problems of out-of-tolerance product surface roughness, poor external dimension, difficult repair and the like caused by overflow accumulation of the brazing filler metal are effectively avoided.

The beneficial effects of the utility model are as follows:

the utility model has simple structure and high processing convenience, can effectively avoid overflow of brazing filler metal in the brazing process by adopting the baffle ring structure in the middle of the plug-in end of the nozzle, has good welding quality, saves repairing cost, can greatly improve the qualification rate of products, and has good economical practicability.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a prior art connection structure of a nozzle and a braze matrix;

FIG. 2 is a schematic structural diagram of embodiment 1 of the present utility model;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 4 is a schematic structural diagram of embodiment 3 of the present utility model;

FIG. 5 is a schematic structural diagram of embodiment 4 of the present utility model;

FIG. 6 is a schematic structural diagram of embodiment 5 of the present utility model;

FIG. 7 is a schematic structural view of the split clip configuration of FIG. 6;

fig. 8 is an enlarged schematic view of a portion a in fig. 7.

Detailed Description

Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

As shown in fig. 2-8, the structure for reducing overflow accumulation of brazing filler metal in brazing comprises a brazing matrix 1, wherein a mounting hole is formed in the brazing matrix 1, a nozzle 2 is inserted into the mounting hole, a stop ring structure for preventing overflow of brazing filler metal is arranged at the insertion end of the nozzle 2, and a brazing sheet 3 is arranged in the stop ring structure.

The baffle ring structure is a groove structure 4 arranged at the plug-in end of the nozzle, and the outer diameter of the brazing sheet 3 is slightly smaller than the inner diameter of the groove structure 4.

Specifically, the groove structure 4 is a countersink arranged at the shaft hole of the nozzle 2 or at the mounting hole of the brazing matrix 1; the processing of the countersink is determined by the thickness of the nozzle 2 wall and the braze matrix 1. Or the groove structure is a butt joint groove structure 5 which is formed by arranging two halves of the butt joint groove structure on the nozzle 2 and the brazing matrix 1 oppositely. The butt joint groove structure 5 is of a U-shaped or triangular structure with two half parts in butt joint; the butt joint grooving structure 5 is preferably suitable for parts with slightly thinner walls of the nozzle 2 and the brazing matrix 1, and adopts a U-shaped or triangular structure, so that the concentration of welding stress can be better avoided in the welding process, and the welding quality is better.

Or the baffle ring structure is a hoop structure which is detachably sleeved on the outer side of the brazing sheet, and the structure is particularly suitable for brazing the thin-wall base metal and the thin-wall pipe parts.

Specifically, the hoop-shaped structure is a clay hoop 6, a material blocking structure is formed on the outer side of the brazing sheet 4 by adopting a method of manufacturing the clay hoop 6 on site before the part enters a brazing furnace, and the clay hoop 6 is removed after brazing is finished. Or, the hoop-shaped structure is a spliced clamp structure 7, the spliced clamp structure 7 comprises two half-butted spliced elastic metal clamps 701, connecting lugs 702 are arranged at the butt joint positions of the two half-butted spliced elastic metal clamps, and connecting bolts 703 are arranged on the connecting lugs 702; the inner side walls of the two semi-elastic metal hoops 701 are embedded with high temperature resistant plastic or rubber 704 which is convenient for demoulding, and the butt joint parts of the two semi-elastic metal hoops 704 are closely adhered, so that solder can be prevented from overflowing from the butt joint parts during welding.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variations and modification made to the above embodiment according to the technical matter of the present utility model without departing from the technical scope of the present utility model still fall within the scope of the technical scheme of the present utility model.

Claims

1. The utility model provides a brazing reduces excessive structure of piling up of solder, includes braze welding parent (1), is equipped with the mounting hole on braze welding parent (1), has spliced nozzle (2), its characterized in that in the mounting hole: the plug-in end of the nozzle (2) is provided with a baffle ring structure for preventing solder from overflowing, and a soldering lug (3) is arranged in the baffle ring structure.

2. The brazing structure for reducing overflow accumulation of brazing filler metal according to claim 1, wherein: the baffle ring structure is a groove structure (4) arranged at the plug-in end of the nozzle, and the outer diameter of the brazing sheet (3) is slightly smaller than the inner diameter of the groove structure (4).

3. The brazing structure for reducing overflow accumulation of brazing filler metal according to claim 2, wherein: the groove structure (4) is a sinking groove arranged at the shaft hole of the nozzle (2) or the mounting hole of the brazing parent body (1).

4. The brazing structure for reducing overflow accumulation of brazing filler metal according to claim 2, wherein: the groove structure is a butt joint grooving structure (5) which is formed by arranging two halves of the butt joint grooving structure on the nozzle (2) and the brazing matrix (1) oppositely; the butt joint grooving structure (5) is of a U-shaped or triangular structure with two halves oppositely arranged.

5. The brazing structure for reducing overflow accumulation of brazing filler metal according to claim 2, wherein: the baffle ring structure is a hoop structure which is detachably sleeved on the outer side of the brazing sheet.

6. The brazing filler metal overflow accumulation reducing structure according to claim 5, wherein: the hoop-shaped structure is a clay hoop (6).

7. The brazing filler metal overflow accumulation reducing structure according to claim 5, wherein: the hoop-shaped structure is a spliced clamp structure (7), the spliced clamp structure (7) comprises two half-butted spliced elastic metal clamps (701), connecting lugs (702) are arranged at the butted positions of the two half-butted spliced elastic metal clamps, and connecting bolts (703) are arranged on the connecting lugs (702); the inner side walls of the two semi-elastic metal hoops (701) are embedded with high-temperature resistant plastics or rubber (704) which is convenient for demoulding, and the butt joint parts of the two semi-elastic metal hoops (704) are closely adhered.