Circulating cooling type cooling structure for welding gun

Abstract

The invention discloses a circulating cooling type cooling structure for a welding gun, and relates to the technical field of welding guns. Comprising a welding gun body, one end of the welding gun body is provided with a welding gun head, and the other end of the welding gun body is provided with a power connector; the handle is arranged at the bottom of the welding gun main body; the spiral pipes are arranged on the outer wall of the welding gun head, the two spiral pipes form a double-spiral structure, and the ends of the two spiral pipes are communicated with each other; and the two connecting pipes are respectively connected to one ends of the two spiral pipes. By arranging the spiral pipe, the circulating pipe and other structures, cooling water can be circulated through the spiral pipe based on water supply of the circulating water supply system, and effective cooling is achieved; and the handle heating mechanism is arranged, the handle heating mechanism can be communicated with the connecting pipe by controlling the shifting piece according to actual requirements such as the cold environment in winter, so that water flows through the handle, the handle is heated, the use comfort is guaranteed, and the practicability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding guns, and in particular to a circulating cooling type temperature reduction structure for welding guns. Background Art

[0002] A welding gun is a welding tool used for manual welding and automated welding. The welding gun uses the high current and high voltage of the welding machine to generate heat that gathers at the end of the welding gun, melting the welding wire. The molten welding wire penetrates into the part to be welded, and after cooling, the welded objects are firmly connected into one. The welding gun performs welding operations during the welding process. In order to prevent the welding gun from overheating, the welding gun needs to be cooled. Usually, internal heating and external heating welding guns need to be powered off to achieve cooling, which is inefficient. How to better cool the welding gun is a problem that needs to be considered.

[0003] After searching, the Chinese patent application number CN202222922603.X discloses a cooling mechanism of a water-cooled welding gun, including a welding gun body, a clamping cavity fixedly connected inside the welding gun body, a tungsten rod inside the clamping cavity, a cooling assembly fixedly connected to the top of the welding gun body, and the cooling assembly includes a first water inlet pipe, a second water inlet pipe fixedly connected to the other side of the top of the welding gun body, a first cooling cavity fixedly connected to the outside of the clamping cavity, a first drain pipe fixedly connected to the bottom of the welding gun body, a second cooling cavity fixedly connected inside the welding gun body, a second drain pipe fixedly connected to one end of the handle, a heat sink provided on the top of the welding gun body, and a fan fixedly connected inside the welding gun body. The cooling mechanism in the above-mentioned document has the following shortcomings: although it can meet certain cooling requirements, it cannot make good use of heat according to actual conditions, and there is still room for improvement. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a circulating cooling structure for a welding gun.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A circulating cooling type temperature reduction structure for a welding gun, comprising: A welding gun body, wherein a welding gun head is disposed at one end of the welding gun body and a power supply connector is disposed at the other end of the welding gun body; A handle, which is arranged at the bottom of the welding gun body; A spiral tube, the spiral tube is arranged on the outer wall of the welding gun head, the two spiral tubes form a double spiral structure, and the ends of the two spiral tubes are connected to each other; Connecting pipes, the two connecting pipes are respectively connected to one end of the two spiral pipes; A circulation pipe, the circulation pipe is connected to the connecting pipe, and the ends of the two circulation pipes are respectively connected to the input and output ends of the circulating water supply system; The handle heating mechanism is built into the handle, and the handle heating mechanism is connected to the end of the connecting tube. The connecting tube is provided with a control paddle for controlling the connection and disconnection between the connecting tube and the handle heating mechanism. Based on the movement of the control paddle, the handle heating mechanism and the connecting tube can be connected or disconnected.

[0006] As a preferred embodiment of the present invention: the handle heating mechanism comprises: A secondary tube, both ends of which are respectively connected to the ends of the two connecting tubes, a receiving cavity is provided in the handle, and the secondary tube is located in the receiving cavity; The first heat-conducting block is fixed in the accommodating cavity. A first heat-conducting plate is arranged at one end of the first heat-conducting block. The first heat-conducting plate is closely attached to the surface of the auxiliary pipe.

[0007] As a preferred embodiment of the present invention, a second heat-conducting block is further arranged in the accommodating cavity of the handle, one end of the second heat-conducting block is slidably connected to a heat-conducting slide, an arc plate is fixed to the end of the heat-conducting slide, the same second heat-transferring plate is arranged between the two arc plates, a fixing plate is fixed to the inner side of the second heat-conducting block, the fixing plate and the heat-conducting slide are connected by a spring, and the second heat-transferring plate is closely attached to the surface of the auxiliary pipe based on the elastic force of the spring; The accommodating cavity is also provided with a thermal expansion and contraction component, which expands according to the heating conditions, thereby extruding the arc plate to different degrees.

[0008] As a preferred embodiment of the present invention, the thermal expansion and contraction member adopts an expansion airbag, and the expansion airbag includes: A first airbag portion, the first airbag portion is in a U-shaped structure, the end of the first airbag portion is adapted to the position of the arc plate, and the width of the first heat transfer plate is smaller than the spacing of the U-shaped ends of the first airbag portion; The second airbag portion is connected to the first airbag portion via an annular elastic connection portion.

[0009] As a preferred embodiment of the present invention: a limit plate is also slidably connected to the accommodating cavity of the handle, the limit plate is located on the side of the inflation airbag away from the auxiliary tube, a side hole is opened on one side of the handle, an adjusting screw is threadedly connected to the side hole, one end of the adjusting screw is rotatably installed on the inner wall of the limit plate, a guide column is fixed to the outer wall of one side of the limit plate, and the guide column is slidably connected to the other side hole.

[0010] As a preferred embodiment of the present invention: heat transfer wires are fixed to the outer sides of the first heat conducting block and the second heat conducting block, the heat transfer wires are located in the handle, and the heat transfer wires are in a semi-enclosed or fully-enclosed structure adapted to the handle.

[0011] As a preferred embodiment of the present invention: a control switch for control is arranged on one side of the handle, a plurality of strip grooves are opened on the side of the handle, and silicone strips are detachably installed in the strip grooves.

[0012] As a preferred embodiment of the present invention: a slot for accommodating a control paddle is provided on one side of the welding gun body and the handle, an elastic boss is fixed in the slot, an opening is provided at the end of the control paddle, and the control paddle is connected to the outer wall of the elastic boss through the opening.

[0013] As a preferred embodiment of the present invention: a fixing buckle is fixed on the welding gun body, and the circulation pipe is fixed in the fixing buckle.

[0014] As a preferred embodiment of the present invention: a limit piece is installed in a pluggable manner in the strip groove of the handle, and pin holes adapted to the end of the limit piece are provided on the second heat conductive block and the heat conductive slide. The heat conductive slide can be locked and unlocked based on the plugging and unplugging of the limit piece.

[0015] The beneficial effects of the present invention are: 1. The present invention provides spiral tubes, circulating tubes and other structures, and can circulate cooling water through the spiral tubes based on the water supply of the circulating water supply system to achieve effective cooling. A handle heating mechanism is provided, and the handle heating mechanism and the connecting tube can be connected by controlling the paddle according to actual needs, such as in a cold winter environment, so that water flows through the handle to heat the handle, thereby ensuring comfort in use and improving practicality.

[0016] 2. The present invention provides an expansion airbag, which can expand when overheated, so that the end of the first airbag portion can be used to squeeze the arc plate, thereby separating the second heat transfer plate from the auxiliary pipe, reducing the heat transfer effect, achieving the purpose of temperature control, and ensuring the comfort of holding.

[0017] 3. The present invention provides structures such as a limit plate, and can control the limit plate to slide in the accommodating cavity of the handle by screwing an adjusting screw, thereby achieving the purpose of limiting the expansion space of the expansion airbag. The expansion space of the expansion airbag changes, which causes the critical expansion state of the extrusion arc plate at the end of the first airbag part to change, which means that the corresponding critical temperature changes, thereby achieving the purpose of adjustable temperature control effect.

[0018] 4. The present invention provides strip grooves and silicone strips, and the silicone strips can be installed and disassembled in the strip grooves according to needs. When the silicone strips are installed in the strip grooves, they can play a role in heat conduction and heat transfer. When the silicone strips are removed from the strip grooves, the strip grooves can play a role in perspiration, thereby meeting the needs in different environments.

[0019] 5. The present invention provides a limit piece, which can be inserted into the pin holes of the second heat-conducting block and the heat-conducting slide according to actual needs to lock the heat-conducting slide. Based on the limitation of the limit piece, the corresponding heat-conducting slide cannot be squeezed by the end of the first airbag portion, thereby realizing the customized function of the heat transfer condition of each second heat-conducting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a circulating cooling structure for a welding gun provided by the present invention, wherein the circulating cooling structure is arranged on the welding gun; Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another angle; Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle; Figure 4 A schematic diagram of a structure of a circulating cooling type temperature reduction structure handle heating mechanism for a welding gun proposed by the present invention; Figure 5 A schematic diagram of the structure of a circulating cooling type temperature reduction structure limit plate for a welding gun proposed by the present invention; Figure 6 It is a schematic diagram of the structure of the cooperation between the first heat conducting block, the second heat conducting block, the auxiliary pipe and the expansion airbag in a circulating cooling structure for a welding gun proposed by the present invention; Figure 7 A schematic diagram of the structure of a first heat-conducting block and a second heat-conducting block of a circulating cooling structure for a welding gun proposed by the present invention; Figure 8 This is a schematic structural diagram of a circulating cooling type temperature reduction structure limiter for a welding gun proposed in Example 2 of the present invention.

[0021] In the figure: 1 welding gun body, 2 connecting pipe, 3 spiral pipe, 4 welding gun head, 5 control switch, 6 handle, 7 silicone strip, 8 fixing buckle, 9 control paddle, 10 circulation pipe, 11 side hole, 12 arc plate, 13 card slot, 14 elastic boss, 15 first heat transfer plate, 16 auxiliary pipe, 17 first heat transfer block, 18 annular elastic connecting part, 19 limiter, 20 heat transfer wire, 21 limiter plate, 22 second air bag part, 23 fixing plate, 24 second heat transfer block, 25 first air bag part, 26 adjusting screw, 27 guide column, 28 spring, 29 heat conduction slide, 30 second heat transfer plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Embodiment 1: A circulating cooling structure for a welding gun, such as Figure 1-7 As shown, including: A welding gun body 1, wherein a welding gun head 4 is disposed at one end of the welding gun body 1 and a power supply connector is disposed at the other end of the welding gun body 1; A handle 6, which is arranged at the bottom of the welding gun body 1; The spiral tube 3 is arranged on the outer wall of the welding gun head 4, and the two spiral tubes 3 form a double spiral structure, and the ends of the two spiral tubes 3 are connected to each other; Connecting tubes 2, two connecting tubes 2 are respectively connected to one end of two spiral tubes 3; A circulation pipe 10, the circulation pipe 10 is connected to the connecting pipe 2, and the ends of the two circulation pipes 10 are respectively connected to the input and output ends of the circulating water supply system; A handle heating mechanism, which is built into the handle 6 and connected to the end of the connecting tube 2. The connecting tube 2 is provided with a control paddle 9 for controlling the connection and disconnection between the connecting tube 2 and the handle heating mechanism. The handle heating mechanism and the connecting tube 2 can be connected or disconnected based on the movement of the control paddle 9; By providing structures such as the spiral tube 3 and the circulation tube 10, cooling water can be circulated through the spiral tube 3 based on the water supply of the circulating water supply system to achieve effective cooling; a handle heating mechanism can be provided, and according to actual needs, such as the cold environment in winter, the handle heating mechanism and the connecting tube 2 can be connected by controlling the paddle 9, so that water flows through the handle 6 and heats the handle 6, thereby ensuring the comfort of use and improving practicality.

[0025] In order to facilitate heating the handle 6; Figure 4 , Figure 5 , Figure 7 As shown, the handle heating mechanism includes: A secondary tube 16, both ends of which are respectively connected to the ends of the two connecting tubes 2, and a receiving cavity is provided in the handle 6, and the secondary tube 16 is located in the receiving cavity; The first heat conducting block 17 is fixed in the accommodating cavity. A first heat transfer plate 15 is disposed at one end of the first heat conducting block 17 . The first heat transfer plate 15 is closely attached to the surface of the auxiliary pipe 16 .

[0026] In order to avoid overheating of the handle 6; Figure 6 , Figure 7 As shown, a second heat-conducting block 24 is further arranged in the accommodating cavity of the handle 6, one end of the second heat-conducting block 24 is slidably connected to a heat-conducting slide 29, an arc plate 12 is fixed to the end of the heat-conducting slide 29, a second heat transfer plate 30 is arranged between the two arc plates 12, a fixing plate 23 is fixed to the inner side of the second heat-conducting block 24, the fixing plate 23 and the heat-conducting slide 29 are connected by a spring 28, and the second heat transfer plate 30 is closely attached to the surface of the auxiliary pipe 16 based on the elastic force of the spring 28; The accommodating cavity is also provided with a thermal expansion and contraction component, which expands according to the heating conditions, thereby squeezing the arc plate 12 to different degrees.

[0027] In order to facilitate the extrusion of the arc plate 12; Figure 6 , Figure 7 As shown, the thermal expansion and contraction component adopts an expansion airbag, and the expansion airbag includes: The first airbag portion 25 is in a U-shaped structure, the end of the first airbag portion 25 is adapted to the position of the arc plate 12, and the width of the first heat transfer plate 15 is smaller than the spacing of the U-shaped ends of the first airbag portion 25; A second airbag portion 22, wherein the second airbag portion 22 is connected to the first airbag portion 25 via an annular elastic connection portion 18; By providing an expansion airbag, when the temperature is overheated, the end of the first airbag portion 25 can be used to squeeze the arc plate 12 based on the heat expansion of the expansion airbag, so that the second heat transfer plate 30 is separated from the auxiliary pipe 16, the heat transfer effect is weakened, the temperature control purpose is achieved, and the comfort of holding is ensured.

[0028] In order to facilitate the adjustment of control effects; Figure 5 , Figure 6 As shown, a limit plate 21 is also slidably connected in the accommodating cavity of the handle 6, and the limit plate 21 is located on the side of the inflation airbag away from the auxiliary tube 16. A side hole 11 is opened on one side of the handle 6, and an adjusting screw 26 is threadedly connected in the side hole 11. One end of the adjusting screw 26 is rotatably installed on the inner wall of the limit plate 21. A guide column 27 is fixed to the outer wall of one side of the limit plate 21, and the guide column 27 is slidably connected to the other side holes 11. By providing structures such as the limit plate 21, the limit plate 21 can be controlled to slide in the accommodating cavity of the handle 6 by screwing the adjusting screw 26, thereby achieving the purpose of limiting the expansion space of the expansion airbag. The expansion space of the expansion airbag changes, which causes the critical expansion state of the arc plate 12 squeezed at the end of the first airbag part 25 to change, which means that the corresponding critical temperature changes, thereby achieving the purpose of adjustable temperature control effect.

[0029] In order to improve the heat transfer effect; Figure 4 As shown, the outer sides of the first heat-conducting block 17 and the second heat-conducting block 24 are both fixed with heat-conducting wires 20, the heat-conducting wires 20 are located inside the handle 6, and the heat-conducting wires 20 are in a semi-enclosed or fully-enclosed structure adapted to the handle 6; By providing the heat transfer wire 20 , heat can be further evenly transferred to various parts of the handle 6 on the basis of heat transfer between the first heat conductive block 17 and the second heat conductive block 24 , thereby improving practicality.

[0030] To improve practicality; Figure 1As shown, a control switch 5 for control is provided on one side of the handle 6, and a plurality of strip grooves are provided on the side of the handle 6, and a silicone strip 7 is detachably installed in the strip groove; By setting the strip groove and the silicone strip 7, the silicone strip 7 can be disassembled and assembled in the strip groove according to needs. When the silicone strip 7 is installed in the strip groove, it can play a role in heat conduction and heat transfer. When the silicone strip 7 is removed from the strip groove, the strip groove can play a role in perspiration, thereby meeting the needs in different environments.

[0031] To improve practicality; Figure 3 As shown, a slot 13 for accommodating the control paddle 9 is provided on one side of the welding gun body 1 and the handle 6, an elastic boss 14 is fixed in the slot 13, an opening is provided at the end of the control paddle 9, and the control paddle 9 is connected to the outer wall of the elastic boss 14 through the opening; By providing structures such as the card slot 13 and the elastic protruding column 14, the control paddle 9 can be effectively fixed, thereby improving practicality.

[0032] To improve practicality; Figure 1 As shown, a fixing buckle 8 is fixed on the welding gun body 1 , and a circulation pipe 10 is fixed in the fixing buckle 8 .

[0033] Embodiment 2: A circulating cooling structure for a welding gun, such as Figure 8 As shown, in order to further adjust the temperature control effect; this embodiment makes the following improvements on the basis of embodiment 1: a limit member 19 is pluggable and installed in the strip groove of the handle 6, and a pin hole adapted to the end of the limit member 19 is provided on the second heat conducting block 24 and the heat conducting slide 29, and the heat conducting slide 29 is locked and unlocked based on the plugging and unplugging of the limit member 19; By setting the limit member 19, the limit member 19 can be inserted into the pin holes of the second heat-conducting block 24 and the heat-conducting slide 29 according to actual needs, so as to lock the heat-conducting slide 29. Based on the limitation of the limit member 19, the corresponding heat-conducting slide 29 cannot be squeezed by the end of the first airbag portion 25, thereby realizing the customized function of the heat transfer condition of each second heat-conducting block 24.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circulating cooling structure for a welding gun, characterized in that: include: A welding gun body (1), wherein a welding gun head (4) is provided at one end of the welding gun body (1), and a power supply connector is provided at the other end of the welding gun body (1); A handle (6), the handle (6) being arranged at the bottom of the welding gun body (1); A spiral tube (3), the spiral tube (3) being arranged on the outer wall of the welding gun head (4), the two spiral tubes (3) forming a double spiral structure, and the ends of the two spiral tubes (3) being connected to each other; Connecting tubes (2), wherein the two connecting tubes (2) are respectively connected to one end of the two spiral tubes (3); A circulation pipe (10), the circulation pipe (10) being connected to the connecting pipe (2), and the ends of the two circulation pipes (10) being respectively connected to the input and output ends of the circulating water supply system; A handle heating mechanism, the handle heating mechanism is built into the handle (6), the handle heating mechanism is connected to the end of the connecting tube (2), and the connecting tube (2) is provided with a control paddle (9) for controlling the connection and disconnection between the connecting tube (2) and the handle heating mechanism. Based on the movement of the control paddle (9), the handle heating mechanism and the connecting tube (2) can be connected or disconnected.

2. A circulating cooling structure for a welding gun according to claim 1, characterized in that: The handle heating mechanism comprises: An auxiliary tube (16), the two ends of the auxiliary tube (16) being respectively connected to the ends of the two connecting tubes (2); a receiving cavity is provided in the handle (6), and the auxiliary tube (16) is located in the receiving cavity; A first heat conducting block (17) is fixed in the accommodating cavity, a first heat transfer plate (15) is provided at one end of the first heat conducting block (17), and the first heat transfer plate (15) is closely attached to the surface of the auxiliary pipe (16).

3. A circulating cooling structure for a welding gun according to claim 2, characterized in that: A second heat-conducting block (24) is also arranged in the accommodating cavity of the handle (6); one end of the second heat-conducting block (24) is slidably connected to a heat-conducting slide (29); an arc plate (12) is fixed to the end of the heat-conducting slide (29); a second heat-transfer plate (30) is arranged between the two arc plates (12); a fixing plate (23) is fixed to the inner side of the second heat-conducting block (24); the fixing plate (23) and the heat-conducting slide (29) are connected via a spring (28); and the second heat-transfer plate (30) is closely attached to the surface of the auxiliary pipe (16) due to the elastic force of the spring (28); A thermal expansion and contraction component is also provided in the accommodating cavity, and the thermal expansion and contraction component expands based on the heating conditions, thereby extruding the arc plate (12) to different degrees.

4. A circulating cooling structure for a welding gun according to claim 3, characterized in that: The thermal expansion and contraction component adopts an expansion airbag, and the expansion airbag includes: A first airbag portion (25), the first airbag portion (25) being of a U-shaped structure, the end of the first airbag portion (25) being adapted to the position of the arc plate (12), and the width of the first heat transfer plate (15) being smaller than the spacing between the U-shaped ends of the first airbag portion (25); The second airbag portion (22) is connected to the first airbag portion (25) via an annular elastic connection portion (18).

5. A circulating cooling structure for a welding gun according to claim 4, characterized in that: A limit plate (21) is also slidably connected to the accommodating cavity of the handle (6). The limit plate (21) is located on a side of the inflation airbag away from the auxiliary tube (16). A side hole (11) is opened on one side of the handle (6). An adjusting screw (26) is threadedly connected to the side hole (11). One end of the adjusting screw (26) is rotatably mounted on the inner wall of the limit plate (21). A guide column (27) is fixed to the outer wall of one side of the limit plate (21). The guide column (27) is slidably connected to the other side hole (11).

6. A circulating cooling structure for a welding gun according to any one of claims 3 to 5, characterized in that: A heat transfer wire (20) is fixed to the outside of the first heat transfer block (17) and the second heat transfer block (24); the heat transfer wire (20) is located inside the handle (6), and the heat transfer wire (20) is in a semi-enclosed or fully-enclosed structure that matches the handle (6).

7. A circulating cooling structure for a welding gun according to claim 5, characterized in that: A control switch (5) for control is provided on one side of the handle (6), and a plurality of strip-shaped grooves are provided on the side of the handle (6), in which silicone strips (7) are detachably installed.

8. The circulating cooling structure for a welding gun according to claim 1, characterized in that: The welding gun body (1) and one side of the handle (6) are provided with a slot (13) for accommodating the control paddle (9), an elastic convex column (14) is fixed in the slot (13), an end of the control paddle (9) is provided with an opening, and the control paddle (9) is connected to the outer wall of the elastic convex column (14) through the opening.

9. The circulating cooling structure for a welding gun according to claim 1, characterized in that: A fixing buckle (8) is fixed on the welding gun body (1), and a circulation pipe (10) is fixed inside the fixing buckle (8).

10. A circulating cooling structure for a welding gun according to claim 7, characterized in that: A limit piece (19) is installed in a pluggable manner in the strip groove of the handle (6); a pin hole matching the end of the limit piece (19) is provided on the second heat conducting block (24) and the heat conducting slide (29); and the heat conducting slide (29) is locked and unlocked based on the plugging and unplugging of the limit piece (19).

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