CN212384784U

CN212384784U - Flange positioning tool and flame brazing system comprising same

Info

Publication number: CN212384784U
Application number: CN202020355826.0U
Authority: CN
Inventors: 刘刚
Original assignee: Contitech Fluid Technology Changchun Co ltd
Current assignee: Contitech Fluid Technology Changchun Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-01-22
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a flange location frock and flame brazing system including this flange location frock, flame brazing system is still including flange and pipe fitting. The flange positioning tool is used for assisting in carrying out flame brazing on the flange and the pipe fitting, the flange is provided with a main body part, an installation convex part extending outwards from the main body part, and an installation hole which is formed in the main body part, is communicated with the connecting hole of the pipe fitting and penetrates through the installation convex part, and the flange positioning tool comprises a positioning groove used for containing the installation convex part and a heat absorbing part used for extending into the installation hole. In the flame brazing process, the heat absorbing piece can absorb part of heat at the mounting convex part, so that the heating degree of the mounting convex part is reduced, the mounting convex part is prevented from being deformed due to too high heating, and the yield of products is effectively improved.

Description

Flange positioning tool and flame brazing system comprising same

[ technical field ] A method for producing a semiconductor device

The utility model relates to a flange location frock and flame brazing system including this flange location frock, it can be applied to automotive filed, and the assistance is carried out flame brazing to a flange and a pipe fitting.

[ background of the invention ]

In many technical fields, products need to be welded, and welding processes are various, such as laser welding, arc welding, ultrasonic welding, flame brazing and the like, and the welding temperature of the welding processes is relatively high. Taking flame brazing as an example, in the field of automobiles, people often adopt a flame brazing process to weld an aluminum flange and an aluminum pipe in an automobile air conditioning system, the welding temperature of the aluminum flange can reach 580 to 620 ℃, the aluminum flange is generally provided with a connecting hole connected with the aluminum pipe and an installation convex part connected with an air conditioner compressor, an expansion valve and the like, the installation convex part is provided with an installation hole communicated with the connecting hole, and the thickness of the installation convex part is generally thinner than the main body structure of the flange. In some applications, the size requirement of the mounting convex part is small, the influence of a flame brazing process on the mounting convex part is also small, in some applications, the size requirement of the mounting convex part is large, and if the flange and the metal pipe are welded by flame brazing, the mounting convex part is easy to deform after welding is completed, so that the yield of products is low.

Therefore, the present invention is intended to provide a novel technical solution to solve the above technical problems.

[ Utility model ] content

The utility model discloses the technical problem that will solve lies in: the utility model provides a flange location frock and contain the flame brazing system of this flange location frock, it can improve the yield of product.

In order to solve the technical problem, the utility model discloses following technical scheme can be adopted: a flange positioning tool is used for assisting in carrying out flame brazing on a flange and a pipe fitting, the flange is provided with a main body part, an installation convex part extending outwards from the main body part, a mounting hole which is formed in the main body part, is communicated with a connecting hole of the pipe fitting and is communicated with the connecting hole and penetrates through the installation convex part, and the flange positioning tool comprises a positioning groove used for containing the installation convex part and a heat absorbing part used for extending into the mounting hole.

In a preferred embodiment, the heat absorbing member is made of heat resistant stainless steel.

In a preferred embodiment, said heat absorbing member is made of a material containing a composition OCr25N i₂O stainless steel.

In a preferred embodiment, the heat absorbing member has a heat absorbing portion extending into the mounting hole, the heat absorbing portion having a cylindrical shape.

In a preferred embodiment, the flange positioning tool comprises a base, the base is provided with the positioning groove, the positioning groove is provided with a bottom, and the heat absorbing piece extends outwards from the bottom.

In a preferred embodiment, the heat absorbing member is detachably mounted to the base.

In a preferred embodiment, the base has an assembly groove with an internal thread, the heat absorbing member has a first end portion and a second end portion which are oppositely arranged, and the first end portion is provided with an external thread matched with the internal thread.

In a preferred embodiment, the second end portion is provided with a "I" or "cross" shaped operating slot.

In a preferred embodiment, the base has a drain hole communicating the positioning groove and the outside.

In order to solve the technical problem, the utility model discloses following technical scheme still can be adopted: a flame brazing system comprises a pipe fitting assembly and a flange positioning tool in any one of the embodiments, wherein the pipe fitting assembly comprises a flange and a pipe fitting, the flange is provided with a main body part, a mounting convex part extending outwards from the main body part, a connecting hole arranged on the main body part and connected with the pipe fitting, and a mounting hole communicated with the connecting hole and penetrating through the mounting convex part, the mounting hole is provided with an inner surface, and when the flange is mounted to the flange positioning tool, a gap exists between a heat absorbing part and the inner surface.

Compared with the prior art, the utility model discloses following beneficial effect has: in the flame brazing process, the heat absorbing piece can absorb part of heat at the mounting convex part, so that the heating degree of the mounting convex part is reduced, the mounting convex part is prevented from being deformed due to too high heating, and the yield of products is effectively improved.

[ description of the drawings ]

Fig. 1 is a perspective view of a flame brazing system according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view of a tube assembly of the flame brazing system of FIG. 1, including a close-up view.

FIG. 3 is a perspective view of a flange positioning fixture of the flame brazing system of FIG. 1, including a close-up view.

FIG. 4 is a partial cross-sectional view of the flame brazing system of FIG. 1.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, other embodiments obtained by the skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a flame brazing system 1000 including a pipe assembly 100 and a flange positioning tool 200.

Referring to fig. 2 and 4, the pipe assembly 100 includes a flange 1 and a pipe 2. The flange 1 has a main body 10, a mounting protrusion 11 extending outward from the main body 10, another mounting protrusion 12, a connecting hole 13 provided in the main body 10 to connect with the pipe 2, another connecting hole 14, a mounting hole 15 communicating with the connecting hole 13 and penetrating the mounting protrusion 11, and another mounting hole 16 communicating with the other connecting hole 14 and penetrating the other mounting protrusion 12. The mounting convex portion 11 and the other mounting convex portion 12 are each cylindrical, and the mounting convex portion 11 is larger in size than the other mounting convex portion 12. The mounting hole 15 has an inner surface 150 and the further mounting hole 16 has a further inner surface 160. In this embodiment, the pipe assembly 100 is used in an automotive air conditioning system (not shown), the flange 1 and the pipe 2 are preferably made of aluminum, the flange 1 is used for matching with an expansion valve (not shown) of the automotive air conditioning system, the mounting protrusion 11 and the other mounting protrusion 12 are mounted in the expansion valve, the mounting hole 15 is connected with an inner pipe (not shown) of the pipe 2 for conveying a refrigerant, and the other mounting hole 16 is connected with an outer pipe (not shown) of the pipe 2 for conveying a gas. Of course, in other embodiments, when the pipe assembly 100 is used for other purposes, the pipe 2 does not have the structural arrangement of the inner pipe and the outer pipe, but only one pipe, and the flange 1 may also have no other mounting protrusion 12, another connecting hole 14, and another mounting hole 16.

Referring to fig. 2 to 4, the flange positioning tool 200 is used to assist in flame brazing the flange 1 and the pipe 2. The flange positioning tool 200 comprises a positioning groove 3 for accommodating the mounting convex part 11, another positioning groove 4 for accommodating the other mounting convex part 11, a heat absorbing member 5 for extending into the mounting hole 15, and a fixing member 6 for clamping and fixing the pipe fitting 2. In the flame brazing process, the heat absorbing member 5 can absorb part of heat at the mounting convex part 11, so that the heating degree of the mounting convex part 11 is reduced, the mounting convex part 11 is prevented from being deformed due to too high heating, and the yield of products is effectively improved. The heat absorbing member 5 is made of heat-resistant stainless steel, preferably containing the component OCr25N i₂O, so that the heat resistance and the heat absorbing effect of the heat absorbing member 5 can be secured. The heat absorbing member 5 has a heat absorbing portion 50 extending into the mounting hole 15, and the heat absorbing portion 50 is preferably cylindrical, so as to be completely matched with the mounting hole 15, which is more favorable for ensuring the heat absorbing effect, and of course, in other embodiments, the heat absorbing portion 50 may be configured in other shapes, only the heat absorbing effect is poor.

Referring to fig. 3 and 4, the flange positioning fixture 200 includes a base 7, and the base 7 is provided with the positioning groove 3 and another positioning groove 4. The positioning slot 3 has a bottom 30 and the heat absorbing member 5 extends outwardly from the bottom 30. The heat absorbing member 5 is detachably mounted to the base 7, in this embodiment, the base 7 has an assembling groove 70, the assembling groove 70 has an internal thread (not shown), the heat absorbing member 5 has a first end portion 51 and a second end portion 52 which are oppositely arranged, the first end portion 51 is provided with an external thread (not shown) matched with the internal thread, the second end portion 52 is provided with a linear or cross-shaped operation groove 521, so that the heat absorbing member 5 can be rotatably assembled to the base 7 by using a linear or cross-shaped screwdriver. The base 7 further has a liquid discharge hole 71 communicating the positioning groove 3 with the outside and another liquid discharge hole 72 communicating the other positioning groove 4 with the outside, and in this embodiment, the base 7 is provided with four liquid discharge holes 71, and the four liquid discharge holes 71 are uniformly arranged around the heat absorbing member 5. When flange 1 with pipe fitting 2 accomplishes the flame brazing back, need use the coolant liquid to cool off, the utility model discloses a set up outage 71 with another outage 72 will flow into the constant head tank 3 with the coolant liquid in another constant head tank 4 is discharged base 7, and can not influence the welding of next flange and pipe fitting.

Referring to fig. 2 and 4, when the flange 1 is mounted to the flange positioning tool 200, a gap 53 exists between the heat absorbing member 5 and the inner surface 150, in this embodiment, the diameter of the heat absorbing portion 50 is smaller than the diameter of the mounting hole 15, so as to form the gap 53 therebetween, so that the flange 1 can be prevented from being difficult to be removed from the flange positioning tool 200 after the mounting protrusion 11 and the heat absorbing member 5 are expanded during the flame brazing process. In addition, the base 7 further has a side wall 73 surrounding and forming the positioning groove 3, the side wall 73 and the mounting protrusion 11 are also arranged at intervals, in the embodiment, the flange 1 is provided with a positioning portion 17 with a diameter larger than that of the mounting protrusion 11 at a root portion of the mounting protrusion 11, the positioning portion 17 is provided with a circumferential positioning surface 171 and a mounting surface 172 perpendicular to the positioning surface 171, and during the flame brazing process, the side wall 73 is matched with the positioning surface 171 to form a gap between the side wall 73 and the mounting protrusion 11.

It is to be understood that the above-described embodiments of the present invention can be combined with each other to obtain further embodiments, without conflict. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims

1. The utility model provides a flange location frock, its is used for assisting carrying out flame brazing to a flange and a pipe fitting, the flange have the main part, from the installation convex part that the main part outwards extended, set up in the main part be used for with the connecting hole that the pipe fitting links to each other and with the connecting hole communicates with each other and runs through the mounting hole of installation convex part, its characterized in that: the flange positioning tool comprises a positioning groove for accommodating the mounting convex part and a heat absorbing piece extending into the mounting hole, the heat absorbing piece is provided with a heat absorbing part extending into the mounting hole, the flange positioning tool comprises a base, the base is provided with the positioning groove, the positioning groove is provided with a bottom, and the heat absorbing piece extends outwards from the bottom.

2. The flange positioning tool according to claim 1, characterized in that: the heat absorbing member is made of heat-resistant stainless steel.

3. The flange positioning tool according to claim 1, characterized in that: the heat absorbing member is made of stainless steel.

4. The flange positioning tool according to claim 1, characterized in that: the heat absorbing part is cylindrical.

5. The flange positioning tool according to any one of claims 1 to 4, characterized in that: the heat absorbing member is detachably mounted to the base.

6. The flange positioning tool according to claim 5, characterized in that: the base is provided with an assembling groove, the assembling groove is provided with internal threads, the heat absorbing piece is provided with a first end portion and a second end portion which are oppositely arranged, and the first end portion is provided with external threads matched with the internal threads.

7. The flange positioning tool according to claim 6, characterized in that: the second end portion is provided with a linear or cross-shaped operation groove.

8. The flange positioning tool according to any one of claims 1 to 4, characterized in that: the base is provided with a liquid discharge hole which is communicated with the positioning groove and the outside.

9. A flame brazing system, characterized by: the flame brazing system comprises a pipe fitting assembly and the flange positioning tool as claimed in any one of claims 1 to 8, wherein the pipe fitting assembly comprises a flange and a pipe fitting, the flange is provided with a main body part, a mounting convex part extending outwards from the main body part, a connecting hole arranged on the main body part and used for being connected with the pipe fitting, and a mounting hole communicated with the connecting hole and penetrating through the mounting convex part, the mounting hole is provided with an inner surface, and when the flange is mounted on the flange positioning tool, a gap exists between the heat absorbing part and the inner surface.