Arc welding device for air conditioner casing

Abstract

The invention discloses an arc welding device for an air-conditioning shell, and relates to the technical field of arc welding devices, comprising a box body and an argon arc welding body, wherein a strip opening is symmetrically opened on the top surface of the box body, a fixing plate is slidably arranged in the strip opening, a connecting shaft is rotatably arranged in the box body, a gear one and a gear two are respectively fixedly connected to the top and bottom of the connecting shaft, and a strip tooth plate two is arranged on the fixing plate; a bracket is fixedly connected to the top surface of the box body, a screw rod is rotatably arranged at the bottom of the bracket, a fixing assembly is arranged on the screw rod, and a gear three is arranged at the bottom of the screw rod; an electric push rod is installed in the box body, and a driving assembly is arranged at the telescopic end of the electric push rod; the invention realizes fixing the outer shell of the air-conditioning unit first by using the driving assembly and other auxiliary components, so as to avoid shaking when welding the foot of the outer shell of the air-conditioning unit, thereby causing misalignment of the foot welding, which is beneficial to the welding of the foot of the outer shell of the air-conditioning unit; then the foot is fixed on the outer shell of the air-conditioning unit, so as to improve the working efficiency of the foot welding.

Description

Technical Field

[0001] The invention relates to the technical field of arc welding devices, and in particular to an arc welding device for an air conditioner casing. Background Art

[0002] The arc welding device adopts the arc starting method of high-voltage breakdown; argon arc welding, namely tungsten inert gas shielded arc welding, refers to a welding method using industrial tungsten or active tungsten as an infusible electrode and inert gas (argon) as protection, referred to as TIG. It is generally used for 6-10mm thin plate welding and thick plate single-sided welding and double-sided forming bottom welding; the existing air conditioner outdoor unit needs to weld four feet at the bottom of the air conditioner outdoor unit during the production process, and an arc welding device is required when welding the feet; however, when the existing arc welding device is used, the air conditioner outdoor unit housing is not fixed, which will cause the air conditioner outdoor unit housing to move when welding the feet, thereby causing the feet to be welded incorrectly; at the same time, the worker needs to fix the feet on the air conditioner outdoor unit housing by hand, and then weld the feet. Since the feet are relatively small, the sparks generated by the arc welding will splash onto the operator's hands, increasing the danger of the feet welding; therefore, an arc welding device for the air conditioner housing is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and to provide an arc welding device for an air conditioner casing.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An arc welding device for an air conditioner housing comprises a housing and an argon arc welding body, wherein the top surface of the housing is symmetrically provided with a strip opening, a fixing plate is slidably provided in the strip opening, a connecting shaft is rotatably provided in the housing, a gear 1 and a gear 2 are respectively fixedly connected to the top and bottom of the connecting shaft, a strip tooth plate 2 matching with the gear 1 is provided on the fixing plate, and two strip tooth plates 2 are located on both sides of the gear 1;

[0006] A bracket is fixedly connected to the top surface of the box body, a screw rod is rotatably arranged at the bottom of the bracket, a fixing assembly acting on the ground fixing is arranged on the screw rod, and a gear three is arranged at the bottom of the screw rod;

[0007] An electric push rod is installed in the box body, and a driving component that first acts on gear two and then acts on gear three is provided at the telescopic end of the electric push rod.

[0008] Preferably, the driving assembly includes a rectangular frame arranged at the telescopic end of the electric push rod, a movable block movably arranged in the rectangular frame and an extrusion spring, and the extrusion spring is located on one side of the fixed end of the electric push rod, the movable block is provided with a bar tooth plate 1 meshing with gear 2, and the rear end face of the rectangular frame is provided with a bar tooth plate 3 matching with gear 3.

[0009] Preferably, the fixing assembly includes a threaded sleeve threadedly connected to the outer wall of the screw rod, a connecting plate fixed to the outer wall of the threaded sleeve and a rectangular block arranged on the connecting plate, and the connecting plate and the bracket are slidably arranged, rectangular cavities are opened at both ends of the rectangular block, a movable plate is slidably arranged in the rectangular cavity, and two locking bolts that interfere with the movable plate are provided on the top surface of the rectangular block, strip cavities are opened on the front and rear end surfaces of the movable plate, a movable rod is slidably arranged in the strip cavity, a fixing part is provided at the bottom of the movable rod, and a locking bolt that interferes with the movable rod is provided on the top surface of the movable plate.

[0010] Preferably, the fixing member comprises a sleeve arranged on the bottom surface of the movable rod, a movable column slidably arranged in the sleeve, and a circular hollow plate arranged on the bottom of the movable column.

[0011] Preferably, a heater is installed in the circular hollow plate, a control component acting on the heater is provided in the sleeve, and the bottom of the circular hollow plate is made of copper.

[0012] Preferably, the control member comprises a second conductive block arranged on the inner top surface of the sleeve and a first conductive block arranged on the top of the movable column, and a reset spring is arranged between the outer wall of the first conductive block and the sleeve.

[0013] Preferably, a series circuit is formed between the conductive block 1, the conductive block 2 and the heater, and the conductive block 1 and the conductive block 2 are both made of copper.

[0014] Preferably, positioning blocks are symmetrically arranged on the top surface of the box body.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. The present invention uses a driving assembly and other auxiliary components to first fix the air conditioner outer shell, thereby avoiding shaking when welding the foot of the air conditioner outer shell, thereby causing the foot welding misalignment, which is beneficial to the welding of the foot of the air conditioner outer shell; then the foot is fixed on the air conditioner outer shell, thereby improving the working efficiency of the foot welding;

[0017] 2. The present invention enables the heater to operate after the ground pins are fixed, and then the heat generated by the heater can preheat the ground pins to avoid cracks after the ground pins are welded, thereby improving the quality of the ground pin welding; wherein, the use of the control component facilitates the control of the heater on and off to avoid the heater being turned on all the time, thereby avoiding power waste and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It shows a schematic structural diagram of a front viewing angle provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a cross-sectional structure at a front viewing angle provided by an embodiment of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of a driving assembly according to a first viewing angle is shown;

[0021] Figure 4 A schematic diagram of the structure of a driving assembly according to a second viewing angle provided by an embodiment of the present invention is shown;

[0022] Figure 5 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the present invention is shown;

[0023] Figure 6 A schematic diagram showing a top-down view of a rectangular block according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic structural diagram of a fixing member provided in an embodiment of the present invention is shown;

[0025] Figure 8 A structural schematic diagram of an upward viewing angle of a sleeve provided according to an embodiment of the present invention is shown.

[0026] Legend:

[0027] 1. Box body; 2. TIG welding body; 3. Strip opening; 4. Fixed plate; 5. Bracket; 6. Connecting plate; 7. Movable plate; 8. Rectangular block; 9. Movable rod; 10. Threaded sleeve; 11. Screw rod; 12. Positioning block; 13. Electric push rod; 14. Rectangular frame; 15. Extrusion spring; 16. Strip tooth plate 1; 17. Connecting shaft; 18. Strip tooth plate 2; 19. Gear 1; 20. Gear 2; 21. Movable block; 22. Gear 3; 23. Strip tooth plate 3; 24. Sleeve; 25. Movable column; 26. Circular hollow plate; 27. Conductive block 1; 28. Reset spring; 29. ​​Conductive block 2; 30. Locking bolt 1; 31. Locking bolt 2; 32. Heater. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-3 , the present invention provides a technical solution:

[0030] An arc welding device for an air-conditioning shell comprises a box body 1 and an argon arc welding body 2 installed in the box body 1, wherein a strip opening 3 is symmetrically opened on the top surface of the box body 1, a fixing plate 4 is slidably arranged in the strip opening 3, a connecting shaft 17 is rotatably arranged in the box body 1, a gear 19 and a gear 2 20 are respectively fixedly connected to the top and bottom of the connecting shaft 17, a strip tooth plate 2 18 matching with the gear 19 is arranged on the fixing plate 4, and two strip tooth plates 2 18 are located on both sides of the gear 19; the outer shell of the air-conditioning unit can be fixed by the clamping force between the two fixing plates 4, so as to avoid shaking when welding the foot of the outer shell of the air-conditioning unit, thereby causing the foot welding to be misaligned, which is further beneficial to the welding of the foot of the outer shell of the air-conditioning unit.

[0031] A bracket 5 is fixedly connected to the top surface of the box body 1, and a screw rod 11 is rotatably provided at the bottom of the bracket 5. A fixing assembly for fixing the foot is provided on the screw rod 11. The lifting and lowering of the fixing assembly can be realized by the coordinated use of the screw rod 11 and the threaded sleeve 10, so as to realize the extrusion and fixing of the foot, so that the foot is stably fixed on the outer shell of the air conditioner, which is conducive to the welding of the foot; a gear 3 22 is provided at the bottom of the screw rod 11;

[0032] An electric push rod 13 is installed in the box body 1, and the telescopic end of the electric push rod 13 is provided with a driving component that first acts on gear 20 and then acts on gear 3 22; through the use of the driving component, the air-conditioning outer shell is first fixed to avoid shaking when welding the foot of the air-conditioning outer shell, thereby causing misalignment of the foot welding, which is beneficial to the welding of the foot of the air-conditioning outer shell; then the foot is fixed on the air-conditioning outer shell to improve the working efficiency of the foot welding.

[0033] In the present invention, the driving assembly includes a rectangular frame 14 arranged at the telescopic end of the electric push rod 13, a movable block 21 movably arranged in the rectangular frame 14, and a squeezing spring 15, and the squeezing spring 15 is located on one side of the fixed end of the electric push rod 13, and is used to squeeze the movable block 21, thereby realizing the movement of the movable block 21; the movable block 21 is provided with a bar tooth plate 16 meshing with the gear 2 20, and the rear end face of the rectangular frame 14 is provided with a bar tooth plate 3 23 matching with the gear 3 22.

[0034] In the present invention, the fixing assembly includes a threaded sleeve 10 threadedly connected to the outer wall of the screw rod 11, a connecting plate 6 fixed to the outer wall of the threaded sleeve 10, and a rectangular block 8 arranged on the connecting plate 6, and the connecting plate 6 is slidably arranged with the bracket 5, and rectangular cavities are provided at both ends of the rectangular block 8, and a movable plate 7 is slidably provided in the rectangular cavity, and a locking bolt 31 that conflicts with the movable plate 7 is provided on the top surface of the rectangular block 8. Through the mutual cooperation of the movable plate 7 and the locking bolt 31, it is convenient to adjust the distance between the fixing members in the horizontal direction; strip cavities are provided on the front and rear end surfaces of the movable plate 7, and a movable rod 9 is slidably provided in the strip cavity, and a fixing member is provided at the bottom of the movable rod 9, and a locking bolt 30 that conflicts with the movable rod 9 is provided on the top surface of the movable plate 7; through the cooperation between the movable plate 7 and the locking bolt 30, the longitudinal distance between the fixing members is adjusted; through the adjustment of the transverse and longitudinal distances between the fixing members, the feet on the outer housing of the air conditioner of different sizes can be fixed, thereby improving the practicality and versatility of the fixing assembly.

[0035] In the present invention, the fixing member includes a sleeve 24 disposed on the bottom surface of the movable rod 9, a movable column 25 slidably disposed in the sleeve 24, and a circular hollow plate 26 disposed on the bottom of the movable column 25; and is used to fix the foot.

[0036] In the present invention, a heater 32 (the prior art) is installed in the circular hollow plate 26. The use of the heater 32 facilitates the generation of heat, which is then conducted to the ground pins to preheat the pins, thereby avoiding cracks after welding the ground pins, and thus improving the quality of ground pin welding. A control component acting on the heater 32 is provided in the sleeve 24. The use of the control component facilitates the control of the on and off of the heater 32 to avoid the heater 32 being turned on all the time, thereby avoiding power waste and saving energy. The bottom of the circular hollow plate 26 is made of copper, which facilitates the rapid conduction of heat to the ground pins, thereby facilitating the rapid preheating of the ground pins.

[0037] In the present invention, the control component includes a conductive block 29 arranged on the inner top surface of the sleeve 24 and a conductive block 1 27 arranged on the top of the movable column 25, wherein the conductive block 1 27 is electrically connected to the heater 32 through a wire; and the conductive block 29 is electrically connected to an external power supply (not shown in the figure) through a wire; a reset spring 28 is provided between the outer wall of the conductive block 1 27 and the sleeve 24; through the use of the reset spring 28, the conductive block 1 27 and the conductive block 2 29 are automatically separated, thereby realizing automatic power-off of the heater 32; a series circuit is formed between the conductive block 1 27, the conductive block 2 29 and the heater 32, and the conductive block 1 27 and the conductive block 2 29 are both made of copper material, which is convenient for conductivity.

[0038] In the present invention, positioning blocks 12 are symmetrically arranged on the top surface of the box body 1 for positioning the air conditioner outer casing so that the air conditioner outer casing is placed in the same position each time, thereby facilitating the welding of the foot.

[0039] Working principle: When the present invention is used, the air conditioner outer shell is placed on the box body 1, and the air conditioner outer shell is in contact with the positioning block 12; then the position of the fixing part is adjusted according to the size of the air conditioner outer shell, specifically: the locking bolt 2 31 is loosened to release the fixation of the movable plate 7, and then the movable plate 7 is pulled to make the fixing part be located on the side where the foot needs to be placed, and the locking bolt 2 31 is tightened to fix the movable plate 7; then the locking bolt 1 30 is loosened to release the fixation of the movable rod 9, and then the movable rod 9 is pulled to make the fixing part be located above the foot where the foot needs to be placed, and the locking bolt 1 30 is tightened to fix the fixing part; then each foot is placed on the air conditioner outer shell, and the foot is located below the fixing part;

[0040] Then, the electric push rod 13 is opened, and the rectangular frame 14 is driven to move by the telescopic end of the electric push rod 13. The movement of the rectangular frame 14 is divided into two processes:

[0041] Process 1: Under the action of the extrusion spring 15, the movement of the rectangular frame 14 drives the movable block 21 to move, and then drives the bar-shaped toothed plate 16 to move, thereby driving the gear 2 20 and the connecting shaft 17 to rotate, and further drives the gear 1 19 to rotate. The rotation of the gear 1 19 causes the bar-shaped toothed plate 2 18 to move relatively, thereby driving the fixed plate 4 to move, and the air conditioner outer unit housing is fixed by the clamping force between the two fixed plates 4;

[0042] When the fixing plate 4 is fixed to the air conditioner outer housing, the strip tooth plate 1 16, the strip tooth plate 2 18, the gear 1 19, the gear 2 20 and the connecting shaft 17 are relatively stationary;

[0043] Process 2: As the telescopic end of the electric push rod 13 continues to extend, the rectangular frame 14 continues to move, so that the bar tooth plate 3 23 contacts the gear 3 22 and drives the gear 3 22 to rotate, thereby driving the screw rod 11 to rotate, so that the threaded sleeve 10 moves downward, and further moves the connecting plate 6 downward. The downward movement of the connecting plate 6 drives the rectangular block 8, the movable plate 7 and the movable rod 9 to move downward, and then drives the sleeve 24, the movable column 25 and the circular hollow plate 26 to move downward, so that the circular hollow plate 26 squeezes the foot, thereby fixing the foot;

[0044] When the foot is fixed, the movable column 25 moves into the sleeve 24, and then the conductive block 1 27 moves into the sleeve 24, so that the conductive block 1 27 contacts the conductive block 2 29, and then the heater 32 is powered on, and the heat generated by the heater 32 is transmitted to the foot through the circular hollow plate 26, so as to preheat the foot and avoid cracks after the foot is welded, thereby improving the quality of the foot welding;

[0045] Then the operator holds the welding head of the argon arc welding body 2 to weld the ground foot to the outer shell of the air conditioner;

[0046] When the foot welding is completed, the telescopic end of the electric push rod 13 contracts, first resetting the fixing member, and then after the fixing member is reset, the heater 32 is automatically powered off under the action of the reset spring 28; finally, the fixing plate 4 is reset to release the fixation of the air conditioner outer shell.

[0047] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An arc welding device for an air conditioner housing, comprising a housing (1) and an argon arc welding body (2), characterized in that: The top surface of the box body (1) is symmetrically provided with a strip opening (3), a fixing plate (4) is slidably provided in the strip opening (3), a connecting shaft (17) is rotatably provided in the box body (1), a gear 1 (19) and a gear 2 (20) are respectively fixedly connected to the top and bottom of the connecting shaft (17), a strip tooth plate 2 (18) matching with the gear 1 (19) is provided on the fixing plate (4), and the two strip tooth plates 2 (18) are located on both sides of the gear 1 (19); A bracket (5) is fixedly connected to the top surface of the box body (1), a screw rod (11) is rotatably provided at the bottom of the bracket (5), a fixing component acting on the ground fixing is provided on the screw rod (11), and a gear three (22) is provided at the bottom of the screw rod (11); An electric push rod (13) is installed in the box body (1), and a drive component is provided at the telescopic end of the electric push rod (13) for first acting on gear 2 (20) and then acting on gear 3 (22); The driving assembly comprises a rectangular frame (14) arranged at the telescopic end of the electric push rod (13), a movable block (21) movably arranged in the rectangular frame (14) and a compression spring (15), wherein the compression spring (15) is located on one side of the fixed end of the electric push rod (13), the movable block (21) is provided with a bar-shaped toothed plate 1 (16) meshing with a gear 2 (20), and the rear end surface of the rectangular frame (14) is provided with a bar-shaped toothed plate 3 (23) matching with a gear 3 (22); The fixing assembly comprises a threaded sleeve (10) threadedly connected to the outer wall of the screw rod (11), a connecting plate (6) fixedly connected to the outer wall of the threaded sleeve (10), and a rectangular block (8) arranged on the connecting plate (6), and the connecting plate (6) and the bracket (5) are slidably arranged, and rectangular cavities are opened at both ends of the rectangular block (8), and a movable plate (7) is slidably arranged in the rectangular cavity, and a second locking bolt (31) that contacts the movable plate (7) is provided on the top surface of the rectangular block (8), and strip cavities are opened on the front and rear end surfaces of the movable plate (7), and a movable rod (9) is slidably arranged in the strip cavity, and a fixing piece is provided at the bottom of the movable rod (9), and a locking bolt (30) that contacts the movable rod (9) is provided on the top surface of the movable plate (7); The fixing member comprises a sleeve (24) arranged on the bottom surface of the movable rod (9), a movable column (25) slidably arranged in the sleeve (24), and a circular hollow plate (26) arranged on the bottom of the movable column (25); A heater (32) is installed in the circular hollow plate (26), a control component acting on the heater (32) is provided in the sleeve (24), and the bottom of the circular hollow plate (26) is made of copper.

2. The arc welding device for an air conditioner housing according to claim 1, characterized in that: The control member comprises a second conductive block (29) arranged on the inner top surface of the sleeve (24) and a first conductive block (27) arranged on the top of the movable column (25), and a return spring (28) is arranged between the outer wall of the first conductive block (27) and the sleeve (24).

3. The arc welding device for an air conditioner housing according to claim 2, characterized in that: A series circuit is formed between the conductive block 1 (27), the conductive block 2 (29) and the heater (32), and the conductive block 1 (27) and the conductive block 2 (29) are both made of copper.

4. The arc welding device for an air conditioner housing according to claim 1, characterized in that: Positioning blocks (12) are symmetrically arranged on the top surface of the box body (1).

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