Novel arc spray gun

Abstract

The utility model discloses a novel arc spray gun which comprises a gun body, a wire feeding pipe and an air pipe. The gun body is divided into a main body and two auxiliary bodies, the main body and the auxiliary bodies of the gun body are fixed through screws, holes are symmetrically formed in the interfaces, and cylindrical through holes are formed in the middles of the holes. The wire feeding pipe and the spherical positioning piece are welded into a whole, and the outer diameter of the spherical positioning piece is slightly larger than the inner diameter of the spherical cavity. The interface aperture is greater than the outer diameter of the wire feeding pipe; the wire feeding pipe, the positioning ball piece and the contact tube assembly are arranged in the cylindrical through hole and the spherical cavity. In this way, in the using process, the main body and the auxiliary body can be separated first, the angle between the wire feeding pipe and the cylindrical through hole is adjusted, in the adjusting process, the spherical positioning piece concentrically rotates relative to the spherical cavity and can play a positioning role, the screw is locked after the two wires are completely aligned, and therefore it can be guaranteed that in the whole spraying process, the wire feeding pipe is not prone to falling off. The stability of equipment operation and the quality of a coating are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray gun technical field more particularly, relate to a novel electric arc spray gun. BACKGROUND

[0002] The existing electric arc spray gun includes the gun body and two wire feeding pipe channels opened on the gun body, and the wire feeding pipe channel is a through hole penetrating the gun body. The electric arc spray gun will gradually deform after long time use, and there is a machining precision problem when the spray gun is opened, which causes the two wire materials to be misaligned when coming out of the electrically conductive nozzle during use, and thus causes phenomena such as sparking, unstable spraying, and low machining precision, thereby affecting the smoothness of spraying and the quality of the coating.

[0003] Therefore, how to provide an electric arc spray gun capable of ensuring the alignment of the wire material after long time use has become a technical problem to be solved in the field. SUMMARY

[0004] The utility model discloses a kind of electric arc spray guns that can still ensure the alignment of wire material after long time use.

[0005] The utility model provides a novel electric arc spray gun, including gun body, gas pipe and wire feeding pipe;

[0006] The gun body includes a main body and two sub-bodies. The two sides of the main body include two first mating surfaces arranged opposite to each other, and the first mating surface is provided with a first long slot and a first spherical cap slot. The first spherical cap slot is located in the extended middle part of the first long slot, and the first long slot penetrates the first spherical cap slot.

[0007] The sub-body includes a second mating surface, and the second mating surface is provided with a second long slot and a second spherical cap slot. The second spherical cap slot is located in the extended middle part of the second long slot, and the second long slot penetrates the second long slot.

[0008] The two sub-bodies are respectively detachably connected to the opposite sides of the main body. The first mating surface is in opposite connection with the second mating surface. The first long slot and the second long slot are mutually engaged to form a cylindrical through hole. The first spherical cap slot and the second spherical cap slot are mutually engaged to form a spherical cavity.

[0009] The extended middle part of the wire feeding pipe is sleeved with a spherical positioning member, and forms a wire feeding assembly with the electrically conductive nozzle. The outer diameter of the spherical positioning member is greater than the inner diameter of the spherical cavity. The outer diameter of the wire feeding pipe is smaller than the inner diameter of the cylindrical through hole. The wire feeding pipe is arranged in the cylindrical through hole, and the spherical positioning member is concentrically arranged in the spherical cavity.

[0010] Optionally, the outer diameter of the spherical positioning member is 0.2-1mm larger than the inner diameter of the spherical cavity.

[0011] Optionally, the main body and the sub-body are connected by screws.

[0012] The gun body includes threaded holes that pass through the main body and the sub-body in sequence. The threaded holes do not intersect with the cylindrical through holes; the screws are threaded into the threaded holes.

[0013] Optionally, the main body is also provided with an air passage hole, and an air pipe is installed in the air passage hole;

[0014] Adjusting the angle of the wire feeding tubes within the cylindrical through-hole allows the axes of the two wire feeding tubes and the air tube to intersect at a single point.

[0015] Optionally, the diameter of the trachea is 6mm-12mm.

[0016] Optionally, a conductive nozzle may be detachably connected to the front end of the wire feeding tube.

[0017] Optionally, the front end of the wire feeding tube includes an external thread section, and the rear end of the conductive nozzle includes an internal thread section, with the external thread section and the internal thread section engaging and connecting.

[0018] Optionally, the gun body is made of non-metallic material, and a metal cap is provided on the inner circumference of the muzzle.

[0019] Optionally, the metal cap extends 0-20mm beyond the gun body.

[0020] Optionally, the inner diameter of the cylindrical through hole is 2mm-10mm larger than the outer diameter of the wire feeding tube.

[0021] Based on the technical content disclosed in this utility model, the following beneficial effects are achieved:

[0022] This novel arc spray gun provides a design where a first and second long groove interlock to form a cylindrical through-hole, and a first and second spherical cap groove interlock to form a spherical cavity. A spherical positioning element is fitted around the outer periphery of the middle extension of the wire feeding tube, with the outer diameter of the spherical positioning element equal to the inner diameter of the spherical cavity. The outer diameter of the wire feeding tube is smaller than the inner diameter of the cylindrical through-hole. The wire feeding tube is positioned within the cylindrical through-hole, and the spherical positioning element is concentrically positioned within the spherical cavity. This design allows for the separation of the main body and sub-body during use, enabling adjustment of the angle between the wire feeding tube and the cylindrical through-hole. During adjustment, the spherical positioning element rotates concentrically relative to the spherical cavity, providing positioning functionality. Once the two wires are fully aligned, the screws are tightened, ensuring the stability of the equipment and the quality of the coating throughout the spraying process.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0025] Fig. 1 The utility model discloses a novel electric arc spray gun profile view.

[0026] Fig. 2 The utility model discloses a wire feeding pipe profile view.

[0027] Fig. 3 The utility model discloses a novel electric arc spray gun use state profile view.

[0028] The drawing label explanation: 1, main body, 2, spherical cavity, 3, screw, 4, metal gun cap, 5, vice body, 6, wire feeding pipe, 7, spherical positioning member, 8, electrically conductive nozzle, 9, wire material, 10, cylindrical through hole, 11, gas path through hole, 12, gas pipe. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present utility model will now be described in detail with reference to the drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present utility model unless specifically stated otherwise.

[0030] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the present utility model and its application or uses.

[0031] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, techniques, methods, and apparatus should be considered part of the description of the present utility model.

[0032] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Thus, other examples of the exemplary embodiments can have different values.

[0033] Note that like reference numerals and letters indicate like items in the following drawings and, as such, no further discussion of the same will be provided.

[0034] Referring to Figs. 1 to 3 The utility model discloses a novel electric arc spray gun, including gun body and wire feeding pipe:

[0035] The gun body comprises a main body 1 and two auxiliary bodies 5; the two sides of the main body 1 comprise two first matching surfaces arranged oppositely, the first matching surfaces are provided with a first long slot and a first spherical cap slot, the first spherical cap slot is located in the middle of the extension of the first long slot, and the first long slot penetrates the first spherical cap slot; the auxiliary body 5 comprises a second matching surface, the second matching surface is provided with a second long slot and a second spherical cap slot, the second spherical cap slot is located in the middle of the extension of the second long slot, and the second long slot penetrates the second long slot; the two auxiliary bodies 5 are respectively detachably connected to the opposite sides of the main body 1, the gun body comprises screw holes penetrating the main body 1 and the auxiliary body 5 in sequence, the screw holes do not intersect with the cylindrical through hole 10, and the screw 3 is in threaded connection with the screw hole. The first matching surface is in opposite connection with the second matching surface, the first long slot and the second long slot are mutually buckled to form the cylindrical through hole 10, and the first spherical cap slot and the second spherical cap slot are mutually buckled to form the spherical cavity 2; the outer periphery of the middle of the extension of the wire feeding pipe is sleeved with a spherical positioning member 7, the spherical positioning member 7 is fixed in an integral whole with the wire feeding pipe 6 in a welding mode and forms a wire feeding assembly with the electrically conductive nozzle, the spherical positioning member 7 can be made of stainless steel, the outer diameter of the spherical positioning member 7 is slightly larger than the inner diameter of the spherical cavity 2 by 0.2mm-1mm, and the main body 1 and the auxiliary body 5 can lock the spherical positioning member 7; the outer diameter of the wire feeding pipe is smaller than the inner diameter of the cylindrical through hole 10; the wire feeding pipe is arranged in the cylindrical through hole 10, and the spherical positioning member 7 is arranged concentrically in the spherical cavity 2. The main body 1 is provided with a gas passage through hole 11, the gas passage through hole 11 is provided with a gas pipe 12, and the diameter of the gas pipe 12 is 6mm-12mm. The angle of the wire feeding pipe in the cylindrical through hole 10 can be adjusted, so that the axes of the two wire feeding pipes and the axis of the gas pipe intersect at a point. In the use process, the two wires 9 are completely aligned, and the connection point is completely at the center of the gas pipe 12, so that the gas flow uniformly acts on the molten wire 9.

[0036] In the use process, the screw 3 can be loosened first, the two wires 9 in the two wire feeding pipes 6 are completely aligned, and then the screw 3 is locked, so that the stability of the equipment in the whole spraying process and the quality of the coating can be ensured.

[0037] The gun body is made of non-metallic material, the inner periphery of the muzzle of the gun body is provided with a metal gun cap 4, the metal gun cap 4 extends out of the gun body by 0-20mm, the non-metallic gun body can be protected, and the gun body can be made of plastic or bakelite.

[0038] Further, the front end of the wire feeding pipe 6 is detachably connected with the electrically conductive nozzle 8. The inner diameter of the electrically conductive nozzle 8 matches the diameter of the wire, the electrically conductive nozzle 8 can be individually detached and replaced through the nozzle of the spray gun, specifically, the front end of the wire feeding pipe 6 comprises an external thread section, the rear end of the electrically conductive nozzle 8 comprises an internal thread section, and the external thread section is in matched connection with the internal thread section.

[0039] Further, during use, the air pipe 12 (arranged in the air passage through hole 11) with different diameters can be replaced according to the requirements of the process, and the diameter of the air pipe 12 is specifically 6mm-12mm. The diameter of the wire 9 is 1.5mm-3mm.

[0040] The diameter of the spherical positioning member 7 is greater than that of the wire feeding pipe 6, and specifically, the diameter of the spherical positioning member 7 can be between 20mm-30mm, and too small is not convenient for locking. The inner diameter value of the cylindrical through hole 10 is greater than the outer diameter value of the wire feeding pipe by 2mm-10mm, which is convenient for the wire feeding pipe 6 / conductive nozzle 8 to have a certain movement space, so as to facilitate the adjustment of the direction, and specifically, the diameter of the wire feeding pipe 6 can be designed as 12mm, and the inner diameter of the cylindrical through hole 10 is 20mm.

[0041] In summary, the novel electric arc spray gun provided by the utility model, which comprises a gun body, a wire feeding pipe and an air pipe. The gun body is divided into a main body and two auxiliary bodies, and the main body and the auxiliary body part of the gun body are fixed by screws, and symmetrically opened holes are arranged at the joint surface, and a cylindrical through hole is formed in the middle part of the hole. The wire feeding pipe and the spherical positioning member are welded to form a whole, and the outer diameter of the spherical positioning member is slightly larger than the inner diameter of the spherical cavity. The diameter of the joint surface is greater than the outer diameter of the wire feeding pipe. The wire feeding pipe, the positioning spherical member and the conductive nozzle assembly are arranged in the cylindrical through hole and the spherical cavity. In this way, during use, the main body and the auxiliary body can be separated first, and the angle between the wire feeding pipe and the cylindrical through hole can be adjusted. During the adjustment process, the spherical positioning member rotates concentrically relative to the spherical cavity, and can play a positioning role. When the two wires are completely aligned, the screws are locked, so that the stability of the equipment during the whole spraying process and the quality of the coating can be ensured.

[0042] Although some specific embodiments of the utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1.A novel electric arc spray gun comprising a gun body, a gas pipe and a wire feeder pipe, characterized in that: the gun body comprises a main body and two auxiliary bodies; the two sides of the main body comprise two first mating surfaces arranged opposite to each other, the first mating surfaces are provided with a first long slot and a first spherical cap slot, the first spherical cap slot is located in the middle of the extension of the first long slot, and the first long slot penetrates the first spherical cap slot; the auxiliary body comprises a second mating surface, the second mating surface is provided with a second long slot and a second spherical cap slot, the second spherical cap slot is located in the middle of the extension of the second long slot, and the second long slot penetrates the second long slot; the two auxiliary bodies are respectively detachably connected to the opposite sides of the main body, the first mating surface is opposite to the second mating surface, the first long slot and the second long slot are mutually engaged to form a cylindrical through hole, and the first spherical cap slot and the second spherical cap slot are mutually engaged to form a spherical cavity; a spherical positioning member is sleeved on the outer periphery of the middle of the extension of the wire feeder pipe, and forms a wire feeding assembly with a conducting nozzle, the outer diameter of the spherical positioning member is greater than the inner diameter of the spherical cavity, the outer diameter of the wire feeder pipe is smaller than the inner diameter of the cylindrical through hole, the wire feeder pipe is arranged in the cylindrical through hole, and the spherical positioning member is arranged concentrically in the spherical cavity. 2.The novel electric arc spray gun according to claim 1, characterized in that: the outer diameter of the spherical positioning member is 0.2mm-1mm greater than the inner diameter of the spherical cavity. 3.The novel electric arc spray gun according to claim 2, characterized in that: the main body and the auxiliary body are connected by a screw; the gun body comprises screw holes which penetrate the main body and the auxiliary body in sequence, the screw holes do not intersect with the cylindrical through hole, and the screw is threadedly connected with the screw hole. 4.The novel electric arc spray gun according to any one of claims 1 to 3, characterized in that: a gas passage through hole is further provided on the main body, and the gas pipe is arranged in the gas passage through hole; adjusting the angle of the wire feeder pipe in the cylindrical through hole can make the axes of the two wire feeder pipes and the axis of the gas pipe intersect at a point. 5.The novel electric arc spray gun according to claim 4, characterized in that: the diameter of the gas pipe is 6mm-12mm. 6.The novel electric arc spray gun according to any one of claims 1 to 3, characterized in that: a conducting nozzle is detachably connected to the front end of the wire feeder pipe. 7.The novel electric arc spray gun according to claim 6, characterized in that: the front end of the wire feeder pipe comprises an external thread section, the rear end of the conducting nozzle comprises an internal thread section, and the external thread section is connected with the internal thread section. 8.The novel electric arc spray gun according to any one of claims 1 to 3, characterized in that: the gun body is made of non-metallic material, and a metal gun cap is arranged on the inner periphery of the gun port of the gun body. 9.The novel electric arc spray gun according to claim 8, characterized in that: the metal gun cap protrudes from the gun body by 0-20mm. 10.The novel electric arc spray gun according to any one of claims 1 to 3, characterized in that: the inner diameter of the cylindrical through hole is 2mm-10mm greater than the outer diameter of the wire feeder pipe.

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