Argon arc welding gun

Abstract

The utility model belongs to the field of welding tools, and particularly relates to an argon arc welding gun which comprises a machining body, a handle, a heat insulation plate and a fixing structure, the machining body comprises a ceramic nozzle, one end of the handle is fixed to the middle of the machining body, and the ceramic nozzle is located below the handle. The heat insulation plate is fixed on the handle by means of the fixing structure, the heat insulation plate is positioned below the handle and is blocked behind the ceramic nozzle, and the heat insulation plate is made of heat insulation materials. Heat on a tungsten electrode bar can be prevented from being transmitted to the handle by means of the ceramic nozzle, so that the comfort of a worker holding the handle is ensured; the problem that a worker cannot normally hold the handle for welding operation due to too high heat of the handle is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of welding tools, and in particular relates to an argon arc welding gun. Background Art

[0002] Argon arc welding is a welding technology that uses argon gas to protect the welding material, and uses high current to melt the welding material into liquid on the metal to be welded to form a molten pool, so that the metal to be welded and the welding material are combined. Since argon gas is continuously supplied during high-temperature molten welding, the welding material cannot come into contact with oxygen in the air, thereby preventing the oxidation of the welding material. Therefore, argon arc welding can weld a variety of metals and alloy materials such as stainless steel and aluminum.

[0003] However, the argon arc welding gun (tungsten pole) will generate high heat during use, and the worker needs to hold the handle during welding. The tungsten pole is set in the workpiece, and the workpiece is connected to the handle. The heat generated by the tungsten pole will accumulate and finally generate high heat, which makes the hands unbearable and ultimately makes it impossible to perform normal welding operations. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the current argon arc welding gun generates high heat during welding operation, resulting in the worker's hand being unable to hold the handle normally, and ultimately unable to perform normal welding operations.

[0005] In order to solve the above technical problems, the utility model provides an argon arc welding gun, including a processing body, a handle, a heat insulation plate and a fixing structure, the processing body including a ceramic nozzle, one end of the handle is fixed to the middle part of the processing body, the ceramic nozzle is located below the handle, the heat insulation plate is fixed to the handle with the aid of the fixing structure, and the heat insulation plate is located below the handle, blocking behind the ceramic nozzle, and the heat insulation plate is made of insulation material.

[0006] Preferably, the processing body also includes a gun body, which is located above the ceramic nozzle, and the fixing structure includes an integrally formed steel wire hoop ring and a connecting handle and a sleeve steel wire, the steel wire tightening ring is clamped on the top of the gun body, the length direction of the connecting handle is consistent with the length extension direction of the handle, and extends from the rear part of the connecting handle to the front end of the handle, and the sleeve steel wire fixes the connecting handle, the handle and the heat insulation board together.

[0007] Preferably, the heat insulation board is provided with a through hole, the sleeve steel wire passes through the through hole and simultaneously surrounds and tightens the handle and the connecting handle from above, the upper edge of the heat insulation board is provided with a semicircular notch, the handle portion is located in the semicircular notch and fits with the semicircular notch, the sleeve steel wire and the semicircular notch cooperate together to fix themselves to the handle, and fix the connecting handle to the handle and connect the sleeve steel wire to the connecting handle.

[0008] Preferably, a plurality of heat dissipation fins are provided on a side of the heat insulation plate facing the ceramic nozzle.

[0009] Preferably, a cooling fan is also included, all the cooling fins extend laterally, and each cooling fin is provided with a coaxial and same-diameter air vent, the cooling fan comprises an air inlet and an air outlet, the air inlet is fixed on the cooling fin at the bottom and is connected to the air vent of the cooling fin at the bottom, the air outlet faces downward, and the air vents on all the cooling fins form a heat conduction duct.

[0010] The technical solution of the utility model has the following beneficial effects:

[0011] The utility model provides a heat insulation board on the argon arc welding gun so that the heat insulation board physically separates the ceramic nozzle and the handle. The heat insulation board is made of a heat insulation material, which directly blocks the heat generated by the tungsten pole during welding operation, reduces the heat transfer as much as possible, prevents excessive heat from the tungsten pole from being transferred to the handle along the ceramic nozzle, ensures the comfort of the worker holding the handle, and prevents the worker from being unable to hold the handle normally for welding due to excessive heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a first-view perspective stereoscopic image of the utility model;

[0014] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0015] Figure 3 This is a stereoscopic view of the second viewing angle of the utility model;

[0016] Figure 4 It is a three-dimensional schematic diagram of the heat insulation sheet of the utility model.

[0017] Explanation of the reference numerals: 1. Processing body; 11. Ceramic nozzle; 12. Gun body; 2. Handle; 3. Heat shield; 31. Perforation; 32. Heat dissipation fin; 33. Semicircular notch; 321. Vent; 4. Fixing structure; 41. Steel wire hoop ring; 42. Connecting handle; 43. Sleeve steel wire; 5. Cooling fan; 51. Air suction nozzle; 52. Air outlet nozzle; 6. Heat conduction pipe. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] The utility model provides an argon arc welding gun, comprising a processing body 1, a handle 2, a heat insulation board 3 and a fixing structure 4, wherein the processing body 1 comprises a ceramic nozzle 11, one end of the handle 2 is fixed to the middle part of the processing body 1, and the ceramic nozzle 11 is located below the handle 2, and further comprising: the heat insulation board 3 is fixed on the handle 2 by means of the fixing structure 4, and the heat insulation board 3 is located below the handle 2 and blocked behind the ceramic nozzle 11, and the heat insulation board 3 is made of a heat insulation material.

[0023] The heat insulation board 3 of the utility model is mainly used to resist the heat generated by the welding gun (the tungsten pole in the ceramic nozzle 11) when the worker holds the argon arc welding gun handle 2 for welding, so as to prevent the hands from being burned by excessive heat. The heat insulation board 3 is made of a material with good heat insulation effect, which can isolate most of the heat, making the worker more comfortable when working.

[0024] The processing body 1 of the utility model also includes a gun body 12, which is located above the ceramic nozzle 11. The fixing structure 4 includes an integrally formed steel wire hoop ring 41, a connecting handle 42, and a sleeve steel wire 43. The steel wire hoop ring is clamped on the top of the gun body 12. The length direction of the connecting handle 42 is consistent with the length extension direction of the handle 2, and extends from the rear part of the connecting handle 42 to the front end of the handle 2. The sleeve steel wire 43 fixes the connecting handle 42, the handle 2 and the heat insulation board 3 together. The steel wire sleeve ring and the connecting handle 42 force the heat insulation board 3 to be fixed on the gun body 12, and the sleeve steel wire 43 force the heat insulation board 3 to be fixed on the handle 2. The two-way fixation makes the fixation of the heat insulation board 3 more stable.

[0025] The specific fixing method of the sleeve steel wire 43 is as follows: two through holes 31 are provided on the insulation board 3, and the sleeve steel wire 43 passes through the two through holes 31, and the handle 2 and the connecting handle 42 are simultaneously surrounded and tightened from the top; a semicircular notch 33 is provided on the upper edge of the insulation board 3, and the handle 2 is partially located in the semicircular notch 33 and fits with the semicircular notch 33; the sleeve steel wire 43 and the semicircular notch 33 cooperate with each other to fix themselves on the handle 2, and fix the connecting handle 42 on the handle 2 and connect the sleeve steel wire 43 to the connecting handle 42.

[0026] The side of the heat insulation board 3 facing the ceramic nozzle 11 is provided with a plurality of heat dissipation fins 32, which can ensure that the heat around the heat insulation board 3 can be dissipated in time to prevent heat accumulation and affect the heat insulation effect. The heat on the heat insulation board 3 can be discharged away from the part held by the hand along the extension direction of the heat dissipation fins 32.

[0027] In order to further increase the speed of heat dissipation, the utility model is also provided with a heat dissipation fan 5, all heat dissipation fins 32 extend horizontally, and each heat dissipation fin 32 is provided with a coaxial and same-diameter vent 321, and the heat dissipation fan 5 includes an air suction nozzle 51 and an air outlet nozzle 52, the air suction nozzle 51 is fixed on the bottom heat dissipation fin 32, and is connected to the air vent 321 of the bottom heat dissipation fin 32, and the air outlet nozzle 52 faces downward. When the welding gun needs to perform welding operations, the worker turns on the main switch, and then the gun body 12 and the heat dissipation fan 5 are started at the same time, and the tungsten pole rod in the gun body 12 is passed through the current to generate an arc, and the heat dissipation fan 5 absorbs the heat on the side of the heat insulation board 3 facing the ceramic nozzle 11 through the air suction nozzle 51, and then out of the air outlet nozzle 52. The air vents 321 on the layers of heat dissipation fins 32 form a heat conduction pipe 6, which transmits and discharges the heat along the heat conduction pipe 6.

[0028] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An argon arc welding gun, comprising a processing body (1) and a handle (2), wherein the processing body (1) comprises a ceramic nozzle (11), one end of the handle (2) is fixed to the middle of the processing body (1), and the ceramic nozzle (11) is located below the handle (2), characterized in that: It also comprises a heat insulation board (3) and a fixing structure (4), wherein the heat insulation board (3) is fixed to the handle (2) by means of the fixing structure (4), and the heat insulation board (3) is located below the handle (2) and blocked behind the ceramic nozzle (11), and the heat insulation board (3) is made of a heat insulation material.

2. The argon arc welding gun according to claim 1, characterized in that: The processing body (1) also includes a gun body (12), the gun body (12) is located above the ceramic nozzle (11), the fixing structure (4) includes an integrally formed steel wire hoop ring (41) and a connecting handle (42) and a sleeved steel wire (43), the steel wire tightening ring is tightened on the top of the gun body (12), the length direction of the connecting handle (42) is consistent with the length extension direction of the handle (2), and extends from the rear part of the connecting handle (42) to the front end of the handle (2), and the sleeved steel wire (43) fixes the connecting handle (42), the handle (2) and the heat insulation board (3) together.

3. The argon arc welding gun according to claim 2, characterized in that: The heat insulation board (3) is provided with a through hole (31), the sleeve steel wire (43) passes through the through hole (31) and simultaneously surrounds and tightens the handle (2) and the connecting handle (42) from above, the upper edge of the heat insulation board (3) is provided with a semicircular notch (33), the handle (2) is partially located in the semicircular notch (33) and fits with the semicircular notch (33), the sleeve steel wire (43) and the semicircular notch (33) cooperate with each other to fix themselves on the handle (2), fix the connecting handle (42) on the handle (2) and connect the sleeve steel wire (43) to the connecting handle (42).

4. The argon arc welding gun according to claim 1, characterized in that: A plurality of heat dissipation fins (32) are provided on the side of the heat insulation plate (3) facing the ceramic nozzle (11).

5. The argon arc welding gun according to claim 4, characterized in that: It also includes a heat dissipation fan (5), all of the heat dissipation fins (32) extend laterally, and each heat dissipation fin (32) is provided with a coaxial and same-diameter vent (321), the heat dissipation fan (5) includes an air inlet and an air outlet (52), the air inlet is fixed on the bottom heat dissipation fin (32) and is connected to the vent (321) of the bottom heat dissipation fin (32), the air outlet (52) faces downward, and the vents (321) on all the heat dissipation fins (32) form a heat conduction pipe (6).

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