Metal plate corner joint welding back argon filling auxiliary device

Abstract

The utility model discloses a metal plate corner joint welding back argon filling auxiliary device which comprises a gas collection base, a splitter plate, a gas inlet guide pipe and a fixing bolt. The gas collection base comprises a first base plate and a second base plate which are connected into a whole, and a groove for placing the splitter plate is formed in the first base plate on the outer side of the bent part; an argon flow dividing groove is formed in one side below the groove, and a threaded hole A is formed in the other side below the groove; one end of the gas collecting base is provided with a screw hole used for installing a gas inlet guide pipe, and the screw hole is communicated with the argon flow dividing groove; a countersunk threaded hole B matched with the threaded hole A is formed in one end of the splitter plate, a row of argon splitting holes are obliquely formed in the other end of the splitter plate, and the gas inlet ends of the argon splitting holes correspond to the argon splitting grooves; and the splitter plate is placed in the groove and is connected with the gas collection base through a fixing bolt. The butt joint device is simple and reliable in structure, convenient to operate and capable of improving the butt joint yield of argon arc welding plates and reducing the production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal sheet welding auxiliary tool technical field, concretely relates to a kind of metal plate corner joint welding back argon filling auxiliary device. BACKGROUND

[0002] Argon arc welding is a kind of welding method using argon as protective gas, which can effectively solve the problem that weld is easily oxidized at high temperature. However, when metal plate corner butt welding is carried out, argon protection can only be carried out on the front side. This argon protection method on the front side cannot effectively solve the problem of weld oxidation. Therefore, it is particularly necessary to design a device that can assist in argon protection on the back side during welding. SUMMARY

[0003] The utility model aims at solving the problems in the prior art, and provides a metal plate corner butt welding back argon filling auxiliary device, which can fill argon into the back of the weld during metal plate butt welding, effectively isolate air, ensure that the welding pool and high-temperature weld metal are not oxidized, and thus ensure the welding quality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal plate corner joint welding back argon filling auxiliary device, which comprises a gas collecting base, a flow dividing plate, a gas inlet pipe and a fixing bolt.

[0005] The gas collecting base is a bent piece with a ninety-degree included angle, comprising a first base plate and a second base plate connected as one body. A recess for placing the flow dividing plate is formed on the first base plate outside the bending part. An argon gas flow dividing groove is formed on one side below the recess, and a threaded hole A is formed on the other side. A threaded hole for installing the gas inlet pipe is formed at one end of the gas collecting base, and the threaded hole is in communication with the argon gas flow dividing groove.

[0006] The flow dividing plate is in the shape of a long strip, and a countersunk threaded hole B matched with the threaded hole A is formed at one end of the flow dividing plate. A row of argon gas flow dividing holes is formed at the other end of the flow dividing plate in an inclined manner, and the gas inlet end of the argon gas flow dividing holes corresponds to the argon gas flow dividing groove. The flow dividing plate is placed in the recess and connected with the gas collecting base by the fixing bolt.

[0007] Further, a through groove for reducing the counterweight is formed on the first base plate and the second base plate, and the number of through grooves is at least one.

[0008] Further, the number of threaded holes A is at least three, and the threaded holes are equally spaced. The number of countersunk threaded holes B is also at least three, and the threaded holes are equally spaced.

[0009] Further, the top surface of the flow dividing plate installed in the recess is flush with the top surface of the first base plate of the gas collecting base.

[0010] Further, the gas inlet pipe is provided with an external thread at one end, and a flange is formed at the other end as a gas inlet rubber pipe interface.

[0011] Further, the shunt plate is provided with a rounded corner at the outlet end of the argon shunt hole.

[0012] In use, two metal plates to be butt welded are placed above the device, the weld seam of the butt joint of the two metal plates is aligned and placed at the middle of the shunt plate, argon is connected through the gas inlet pipe, the inside of the gas collection base is filled with argon, the argon uniformly protects the high-temperature weld seam metal through the shunt hole and the shunt groove, and the welding work is completed.

[0013] The utility model discloses when carrying out argon arc welding metal plate butt joint welding, through filling argon in the weld seam back, effectively insulates the back air invasion, guarantees that the welding bath and high-temperature weld seam metal are not oxidized by air, and reduces the welding deformation, thereby improving the welding quality, adapts to the high-standard industrial welding requirement. The utility model discloses simple and reliable structure, convenient operation can improve the finished product rate when argon arc welding plate butt joint, reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the schematic diagram of the gas collection base of the utility model;

[0015] Figure 2 It is the side view of the utility model;

[0016] Figure 3 It is the A-A sectional view of Figure 1

[0017] Figure 4 It is the schematic diagram of the shunt plate of the utility model;

[0018] Figure 5 It is the B-B sectional view of Figure 4

[0019] Figure 6 It is the explosion drawing of the utility model;

[0020] Figure 7 It is the explosion drawing of another angle of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the utility model will be described with reference to the drawings, and those skilled in the art will understand that the following embodiments are only used for illustrating the utility model and should not be regarded as limiting the scope of the utility model. The specific technology, connection relationship or condition not noted in the embodiments is according to the technology, connection relationship, condition described in the literature in the field or according to the product instruction. The materials, instruments or equipment not noted the manufacturer are all conventional products that can be obtained by purchase.

[0022] ​​In the description of the utility model, it is necessary to explain, unless another definite provision and limitation, the term "installation", "connection", "be equipped with" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through the intermediate medium.

[0023] In combination Figures 1-7 The utility model provides a kind of metal plate corner joint welding back argon filling auxiliary device, including gas collection pedestal 1, splitter plate 2, gas inlet pipe 3 and fixed bolt 4;Wherein,

[0024] Gas collection pedestal 1 is the bending piece of ninety degrees included angle, is made of aluminum alloy, including the first base plate 11 and second base plate 12 that are integrated, recess 13 for placing splitter plate 2 is set on the first base plate 11 outside bending place;Argon gas shunt groove 14 is set on the side below recess 13, and threaded hole A15 is set on the other side;Gas collection pedestal 1 one end is provided with screw hole 16 for installing gas inlet pipe 3, and the screw hole 16 is communicated with argon gas shunt groove 14;Gas inlet pipe 3 one end is equipped with external thread 31, and the other end is processed with flange 32 as gas inlet rubber pipe interface;

[0025] Splitter plate 2 is long strip structure's purple copper splitter plate, and the thickness is 9mm, and one end is provided with countersunk head threaded hole B21 matched with threaded hole A15, and the other end is obliquely and evenly provided with a row of argon gas shunt hole 22, and the gas inlet end of argon gas shunt hole 22 corresponds with argon gas shunt groove 14;The diameter of argon gas shunt hole 22 is 3mm;Splitter plate 2 is placed into recess 13, and is connected with gas collection pedestal 1 by fixed bolt 4;The corner of the gas outlet end of argon gas shunt hole 22 of splitter plate 2 is guided with round angle, to facilitate gas flow-through;The number of threaded hole A15 is 5, and is evenly set, and the number of countersunk head threaded hole B21 is also 5, and is evenly set.

[0026] The gas collection pedestal of the embodiment is made of whole 6 series aluminum magnesium alloy material using numerical control machine tool, and the length is 300mm, the width is 170mm, and the height is 85mm.The splitter plate is made of purple copper bar stock, and the length is 300mm, the width is 30mm, the thickness is 9mm, the shunt groove depth is 7mm, the length is 300mm, the width is 20mm, and the shunt hole diameter is 3mm.

[0027] Further optimization scheme, the first base plate 11 and second base plate 12 of the utility model are all provided with through groove 5 for reducing counterweight, and the number of through groove 5 is at least one, and its shape is circular, oval, rectangular, triangular, kidney-shaped etc.

[0028] Further optimization scheme, install to the top surface of the shunt plate 2 in the groove 13 with the first base plate 11 top surface of the gas collecting base 1 flush.

[0029] When the butt joint argon arc welding of the auxiliary metal plate is used, two metal plates to be welded of 0.5-50mm thick are respectively placed on two sides, the back of butt joint welds of the two metal plates is aligned in the middle of the shunt plate, argon is connected through the gas inlet pipe, the gas collecting base is filled with argon, and then welding can be carried out. In the welding process, the back of the weld is filled with argon, which can effectively isolate the air invasion of the back, ensure that the welding pool and high-temperature weld metal are not oxidized by air, and improve the welding quality.

[0030] The utility model mainly applies to the metal plate welding needing back argon filling protection, can be used in actual product production, also can be used for doing welding experiment, process research, welding process evaluation etc., especially suitable for school welding skill teaching practical training use.

[0031] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the inventive concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. An argon-filling auxiliary device for welding the back side of a metal plate corner joint, characterized in that, It includes an air collection base (1), a flow divider (2), an air intake duct (3), and fixing bolts (4); among which, The gas collecting base (1) is a bent part with a 90-degree included angle, including a first base plate (11) and a second base plate (12) that are connected as one piece. A groove (13) for placing a flow divider plate (2) is opened on the first base plate (11) on the outside of the bend. An argon flow divider groove (14) is opened on one side below the groove (13), and a threaded hole A (15) is opened on the other side. A screw hole (16) for installing an air inlet duct (3) is opened at one end of the gas collecting base (1), and the screw hole (16) is connected to the argon flow divider groove (14). The diverter plate (2) is a long strip structure. One end of it is provided with a countersunk threaded hole B (21) that matches the threaded hole A (15). The other end is provided with a row of argon gas diverting holes (22). The inlet end of the argon gas diverting hole (22) corresponds to the argon gas diverting groove (14). The diverter plate (2) is placed in the groove (13) and connected to the gas collecting base (1) by fixing bolts (4).

2. The argon-filling auxiliary device for welding the back side of a metal plate corner joint according to claim 1, characterized in that, Both the first substrate (11) and the second substrate (12) have through slots (5) for reducing the weight, and the number of through slots (5) is at least one.

3. The argon-filling auxiliary device for welding the back side of a metal plate corner joint according to claim 1, characterized in that, The number of threaded holes A (15) is at least 3, and they are equally spaced; the number of countersunk threaded holes B (21) is also at least 3, and they are equally spaced.

4. The argon-filling auxiliary device for welding the back side of a metal plate corner joint according to claim 1, characterized in that, The top surface of the diverter plate (2) installed in the groove (13) is flush with the top surface of the first base plate (11) of the gas collecting base (1).

5. The argon-filling auxiliary device for welding the back side of a metal plate corner joint according to claim 1, characterized in that, The intake duct (3) has an external thread (31) at one end and a flange (32) at the other end as an intake hose interface.

6. The argon-filling auxiliary device for welding the back side of a metal plate corner joint according to claim 1, characterized in that, The flow divider (2) is equipped with an argon flow divider hole (22) with a rounded corner at one end of the outlet.

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