An environmentally friendly welding machine with automatic fume cleaning function

Abstract

The present invention relates to the field of welding robots, and discloses an environmentally friendly welding machine for automatically cleaning smoke, including a welding machine case, wherein an inner chamber is provided inside the welding machine case, a manipulator is installed in the inner chamber, a welding assembly is installed on the upper end of the manipulator, and the lower end surface of the welding assembly includes a connecting plate, and a plurality of groups of limit tables are evenly distributed on the lower end of the connecting plate. The environmentally friendly welding machine for automatically cleaning smoke described in the present invention starts a driving motor, causes the main body of the movable cleaner to make a circular motion through transmission, and smoke enters the absorption chamber. When passing through the rotating movable cleaner, it contacts the inner and outer surfaces of a plurality of groups of wet smoke absorption bags, and the smoke is fully absorbed, thereby improving the absorption effect. Each group of smoke absorption bags contacts the wet sponge at the lower corner, and the wet elastic part of the wet sponge is slightly squeezed by the skeleton, so that the absorption liquid on the wet sponge is transferred to the smoke absorption bag, and the absorption performance of the smoke absorption bag is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of welding robots, and in particular to an environmentally friendly welding machine capable of automatically cleaning fume. Background Art

[0002] Welding is the process of connecting metal parts using various fusible alloys (solder). The melting point of solder is lower than that of the material being welded, so that the parts can be welded through intermolecular contact on their surface without being melted. The existing welding machine consists of two parts: a welding box and a welding robot. Among them, an ordinary welding robot is usually mainly composed of a base, a rotating motor, a rotating shaft, a large arm, a small arm, a welding assembly, a welding head and other parts. The welding box has the functions of storing the welding robot, transporting the welded parts and blocking welding pollutants.

[0003] The existing welding machines have certain technical defects when in use. First, the welding head is generally connected to the welding assembly by screws or threads, which is troublesome, time-consuming and labor-intensive to install and disassemble. The threads are also prone to rust and damage, which brings inconvenience to maintenance. Second, in the welding box, generally only a thick exhaust pipe is used to centrally suck out the smoke generated by welding. This method has poor suction effect and poor timeliness, and there are many residues in the box. Third, after the dust collecting box carried by the current welding machine collects the smoke, it can only discharge the smoke to the external environment. The smoke includes dust and toxic gases, which will pollute the surrounding environment. The dust collecting box does not have the function of automatic cleaning and pollution reduction.

[0004] In summary, considering that the existing facilities cannot meet the work needs, we propose an environmentally friendly welding machine that automatically cleans the fume. Summary of the invention

[0005] The main purpose of the present invention is to provide an environmentally friendly welding machine that automatically cleans smoke, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An environmentally friendly welding machine that automatically cleans smoke comprises a welding chassis, wherein an inner chamber is arranged inside the welding chassis, a manipulator is installed in the inner chamber, a welding assembly is installed at the upper end of the manipulator, the lower end surface of the welding assembly comprises a connecting plate, and a plurality of groups of limit platforms are evenly distributed at the lower end of the connecting plate, and the number of the limit platforms is preferably 4 groups.

[0008] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a gasket is provided in the middle of each group of the limit platforms, and the gasket is passed through by the self-locking device. The number of the self-locking device and the limit platform is kept consistent, preferably 4 groups, and the limit platform is fixed inside the U-shaped bracket and the connecting plate.

[0009] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning of the present invention, a rotation groove is provided at the middle position of the top of the U-shaped bracket, an elastic clip is provided inside the U-shaped bracket, the lower end surface of the elastic clip is riveted to the limit platform, and the middle parts of the two are connected, and the elastic clip includes two sets of clamping feet;

[0010] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a base is installed on the bottom surface of the inner chamber, a rotating column is rotatably arranged in the base, the rotating column extends upward into the interior of the inner chamber, a workpiece seat is welded to the upper end of the rotating column, and a workpiece groove for placing the workpiece is opened on the upper end surface of the workpiece seat.

[0011] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a rotating table is rotatably arranged at the lower position inside the workpiece seat, an annular lifting track is arranged at the edge of the upper end surface of the rotating table, a landslide groove is arranged inside the annular lifting track, the landslide groove acts on a plurality of lifting dust suction structures, the number of the lifting dust suction structures is preferably 3-5 groups, the landslide groove rises and falls in a certain regular pattern, the plurality of lifting dust suction structures are evenly distributed around the outer side of the dust box, the top of the dust box and the inner surface of the upper end of the workpiece seat are riveted, and a dust suction fan is installed at the bottom of the dust box.

[0012] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, the self-locking device includes a rotating rod, an inner bearing, a locking part, a slot, an arc rotating head and a sprocket. The upper end of the rotating rod is provided with a locking part, and the locking part passes through the limit platform and the elastic clip. The outer side surface of the locking part is provided with two groups of slots that match the clamping feet, and the number of the slots is 2 groups. The top of the locking part is provided with an arc rotating head extending into the rotating slot, and the lower end of the rotating rod is sleeved with a sprocket.

[0013] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a welding head mounting seat is arranged below the connecting plate, a welding head is mounted on the lower end of the welding head mounting seat, each group of the rotating rods is connected to the inside of the welding head mounting seat through an inner bearing, the locking portion extends out of the welding head mounting seat, and the sprockets on each group of the self-locking devices are connected and driven by a chain, a driving shaft is mounted on the lower end of one group of the rotating rods, and the lower end of the driving shaft is connected to a servo motor through a coupling, and the servo motor is vertically fixed inside the welding head mounting seat.

[0014] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, the lifting and dust suction structure includes a lifting column, a slider, a dust suction straight pipe and a dust collecting hood, the lifting column is movably arranged inside the workpiece seat, the lower end of the lifting column is equipped with a slider that acts in the landslide groove, the upper end of the lifting column is fixed with a dust suction straight pipe, the upper end surface of the workpiece seat is provided with a guide groove for the dust suction straight pipe to pass through, and the dust suction straight pipe is connected to a dust collecting hood that acts on the workpiece.

[0015] As a preferred embodiment of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, the lifting dust suction structure also includes a fixed cylinder, an inner cavity, a spring seat, a return spring and a dust suction hose. A fixed cylinder is arranged on the outside of the dust suction straight pipe. The upper end of the fixed cylinder is fixed to the inner surface of the upper end of the workpiece seat. The interior of the fixed cylinder is provided with an inner cavity for the dust suction straight pipe to pass through. The area of ​​the dust suction straight pipe located in the inner cavity is sleeved with a spring seat. A return spring sleeved on the outside of the dust suction straight pipe is fixed between the spring seat and the top of the fixed cylinder. A dust suction hose is arranged between the lower end of the dust suction straight pipe and the absorption cavity of the dust collecting box.

[0016] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a rotating shaft is welded at the middle position of the lower end of the rotating table, the lower end of the rotating shaft is fixed by the first bearing seat and the bottom of the workpiece seat, a large gear is sleeved on the rotating shaft, a small gear is meshed on one side of the large gear, the small gear is sleeved on the output shaft of the uniform speed motor, and the uniform speed motor and the outer side surface of the first bearing seat are connected and fixed.

[0017] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a movable cleaner is arranged at the middle position inside the absorption chamber and directly above the dust suction fan, and the movable cleaner includes a side mounting plate, a frame, a smoke absorption bag and a breathable gap. The side mounting plates are symmetrically distributed in two groups, and the edges between the two groups of side mounting plates are connected by several groups of frames. The number of the frames is preferably 8-16 groups, and each group of the frames is sleeved with a smoke absorption bag, and a breathable gap is formed between adjacent smoke absorption bags.

[0018] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, the movable cleaner includes a shaft, a second bearing seat, a No. 1 gear, a No. 2 gear and a driving motor, and the other sides of the two groups of side mounting plates are welded with shafts, and the shafts are fixed by the second bearing seat and the wall of the dust box. One group of the shafts is sleeved with a No. 1 gear, and the outer side of the No. 1 gear is meshed with a No. 2 gear, and the No. 2 gear is sleeved on the output shaft of the driving motor, and the driving motor is horizontally fixed inside the dust box.

[0019] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a first storage seat is fixed to the inner wall of the dust box and located on one side of the movable cleaner, and the inner side of the first storage seat is provided with a first storage groove for the movable cleaner to extend into, and an absorption liquid box body is installed at the bottom of the first storage groove, and absorption liquid is stored in the absorption liquid box body, and a moistening sponge is installed extending outward from the inside of the absorption liquid box body, and the moistening sponge acts on the moving smoke absorption bag.

[0020] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, a second receiving seat is fixed on the inner wall of the dust box and on the other side of the movable cleaner, and the inner side surface of the second receiving seat is provided with a second receiving groove for the movable cleaner to extend into, and a diversion cross pipe is installed on the top of the second receiving groove, and a plurality of groups of high-pressure flushing heads acting on the smoke absorption bag are equidistantly installed at the bottom of the diversion cross pipe, and the number of the high-pressure flushing heads is preferably 6-12 groups, and a high-pressure water inlet pipe is extended outward from the middle part of the diversion cross pipe, and the other end of the high-pressure water inlet pipe is located inside the water tank, and a liquid collecting tank is obliquely arranged at the bottom of the second receiving tank, and a sewage pipe is extended outward from the bottom of the liquid collecting tank, and the sewage pipe passes through the workpiece seat and is arranged outward.

[0021] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, a tin feeding component is arranged at the side of the inner chamber.

[0022] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, a protection plate is fixed to the front end of the welding machine box, and an electric door is installed in the protection plate.

[0023] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, a control panel is installed on the outer surface of the protection plate.

[0024] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, a driving structure acting on the rotating column is installed inside the base.

[0025] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, the locking part rotates in the elastic clip to make the clamping foot and the slot move relative to each other.

[0026] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, the rotating shaft drives the rotating table to perform uniform circular motion.

[0027] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, the ventilation structure on the dust suction fan is connected to the outside of the workpiece seat.

[0028] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, a booster pump acting on a high-pressure water inlet pipe is installed in the water tank.

[0029] As a preferred solution of the environmentally friendly welding machine with automatic fume cleaning described in the present invention, the absorption chamber of the dust collecting box is in a sealed state.

[0030] As a preferred solution of the environmentally friendly welding machine for automatically cleaning smoke described in the present invention, the wetting sponge includes an absorbing root part and a wetting elastic part.

[0031] The present invention provides an environmentally friendly welding machine that automatically cleans smoke through improvement, which has the following significant improvements and advantages compared with the prior art:

[0032] When installing the welding joint, several groups of self-locking devices are synchronously inserted into the corresponding limit platforms, the locking part passes through the gasket and enters the elastic clip, and the two groups of clamping feet on the elastic clip are spread open so that the card slots and the clamping feet fit in. Several groups of self-locking devices are synchronously connected, and the welding joint is directly fixed, which is simple and convenient.

[0033] When the welding head needs to be disassembled, the servo motor is started first to drive a set of rotating rods to rotate, and the transmission is connected through a chain so that the rotating rods on each set of self-locking devices are synchronously rotated by the same 90°, thereby driving the locking part on the top to rotate. During the rotation process, the card slot on the locking part and the clamping foot of the elastic clip are separated, and the locking part loses its restraint and can be directly taken out from the limit table, thereby achieving the purpose of automatic disassembly, saving time and effort.

[0034] Start the uniform speed motor to drive the small gear to rotate, and drive the rotating table on the rotating shaft to slowly do circular motion through the transmission. When the rotating table moves, the circular lifting track at the upper end makes a rotational motion. The landslide groove generates a force on the slider at the lower end of the lifting dust suction structure, causing the lifting column to drive the dust collecting hood to do a lifting and reciprocating motion. During the lifting and lowering motion of the dust collecting hood, the dust suction range of the dust collecting hood is expanded to avoid smoke overflowing, improve the dust suction effect, and shake off the dust adsorbed on the hood body to achieve the purpose of cleaning.

[0035] Start the driving motor, which causes the main body of the movable cleaner to make a circular motion through transmission. The smoke enters the absorption chamber and contacts the inner and outer surfaces of several groups of wet smoke absorption bags when passing through the rotating movable cleaner. The smoke is fully absorbed, which improves the absorption effect and reduces the diffusion of pollutants. Each group of smoke absorption bags will contact the wet sponge at the lower corner during the rotation, and the skeleton is used to slightly squeeze the wet elastic part of the wet sponge to transfer the absorption liquid on the wet sponge to the smoke absorption bag, thereby maintaining the absorption performance of the smoke absorption bag.

[0036] Turn on the booster pump in the water tank to draw clean water into the high-pressure water inlet pipe, which flows into the diversion cross pipe for diversion, and is sprayed obliquely downward through several groups of high-pressure flushing heads to flush each group of flue gas absorption bags passing through the second receiving tank in turn, so that the pollutants inside and outside the flue gas absorption bags are flushed into the liquid collecting tank below, and then discharged outward along the sewage pipe, thereby achieving the effect of automatic cleaning and pollution reduction, saving time and effort, and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly welding machine that automatically cleans smoke according to the present invention;

[0038] Figure 2 It is a schematic diagram of the internal structure of the inner chamber of the present invention;

[0039] Figure 3 It is a specific structural schematic diagram of the position of the welding assembly of the present invention;

[0040] Figure 4 It is a schematic diagram of the external structure of the connecting plate of the present invention;

[0041] Figure 5 It is a schematic diagram of the specific structure of the elastic clip of the present invention;

[0042] Figure 6 This is a schematic diagram of the internal transmission structure of the welding head mounting base of the present invention;

[0043] Figure 7 It is a schematic diagram of the specific structure of the self-locking device of the present invention;

[0044] Figure 8It is a schematic diagram of the internal structure of the workpiece holder of the present invention;

[0045] Fig. 9 It is a schematic diagram of the external connection of the lifting dust suction structure of the present invention;

[0046] Fig.10 It is a cross-sectional view of the lifting dust suction structure of the present invention;

[0047] Fig.11 It is a schematic diagram of the transmission structure of the rotating table of the present invention;

[0048] Fig.12 This is a schematic diagram of the external structure of the dust collecting box in one direction in the second embodiment of the present invention;

[0049] Fig.13 This is a schematic diagram of the external structure of the dust collecting box in another direction in the second embodiment of the present invention;

[0050] Fig.14 is a cross-sectional view of a dust collecting box in Embodiment 2 of the present invention;

[0051] Fig.15 It is a schematic diagram of the specific structure of the movable cleaner of the present invention;

[0052] Fig.16 It is a schematic diagram of the interior of the first storage seat of the present invention;

[0053] Fig.17 It is a schematic diagram of the interior of the second storage seat of the present invention.

[0054] In the figure: 1, welding chassis; 2, inner chamber; 3, manipulator; 4, welding assembly; 5, base; 6, rotating column; 7, self-locking device; 71, rotating rod; 72, inner bearing; 73, locking part; 74, slot; 75, arc rotating head; 76, sprocket; 8, lifting dust suction structure; 80, lifting column; 81, sliding head; 82, dust suction straight pipe; 83, dust collection cover; 84, fixed cylinder; 85, inner cavity; 86, spring Spring seat; 87, return spring; 88, dust suction hose; 9, movable cleaner; 91, side mounting plate; 92, frame; 93, fume absorption bag; 94, air gap; 95, shaft; 96, second bearing seat; 97, No. 1 gear; 98, No. 2 gear; 99, drive motor; 10, connecting plate; 11, limit table; 12, gasket; 13, U-shaped bracket; 14, rotating groove; 15, elastic clip; 16, clamping foot; 20, welding head mounting seat; 21, welding head; 22, chain; 23, servo motor; 24, drive shaft; 30, workpiece seat; 31, guide groove; 32, rotating table; 33, circular lifting track; 34, slide groove; 35, rotating shaft; 36, first bearing seat; 37, large gear; 38, small gear; 39, uniform speed motor; 40, dust collecting box; 41, dust suction fan; 42, Absorption chamber; 43. first receiving seat; 44. first receiving slot; 45. absorption liquid box; 46. wetting sponge; 50. second receiving seat; 51. second receiving slot; 52. diversion cross pipe; 53. high-pressure flushing head; 54. high-pressure water inlet pipe; 55. water tank; 56. liquid collecting tank; 57. drain pipe; 61. tin delivery assembly; 62. protection plate; 63. electric door; 64. control panel; 65. workpiece slot. DETAILED DESCRIPTION

[0055] 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. Embodiment 1

[0056] like Figure 1-11 As shown, the present embodiment provides an environmentally friendly welding machine for automatically cleaning smoke, including a welding chassis 1, an inner chamber 2 is arranged inside the welding chassis 1, a tin feeding assembly 61 is arranged at the side of the inner chamber 2 for supplying tin for welding, a manipulator 3 is installed in the inner chamber 2, a welding assembly 4 is installed at the upper end of the manipulator 3, the lower end face of the welding assembly 4 includes a connecting plate 10, and a plurality of groups of limit platforms 11 are evenly distributed at the lower end of the connecting plate 10.

[0057] Among them, a washer 12 is arranged in the middle of each set of limit platforms 11, and the washer 12 is used to reduce friction and play a protective role. The washer 12 is passed through by the self-locking device 7. The limit platform 11 is fixed by the U-shaped bracket 13 and the inside of the connecting plate 10. The top middle position of the U-shaped bracket 13 is provided with a rotation groove 14, such as Figure 4 and 5 shown.

[0058] The U-shaped bracket 13 is internally provided with an elastic clip 15 made of spring steel and having deformation reset capability. The lower end surface of the elastic clip 15 is riveted to the limit platform 11, and the middle parts of the two are connected. The elastic clip 15 includes two sets of clamping feet 16, which are bent, such as Figure 5 shown.

[0059] Specifically, the self-locking device 7 includes a rotating rod 71, an inner bearing 72, a locking portion 73, a slot 74, an arc rotating head 75 and a sprocket 76. Figure 7 shown.

[0060] When the locking cam 77 is in the closed position, the locking cam 77 is in the closed position, and the cam 77 is in the closed position, so that ...

[0061] Furthermore, a welding head mounting seat 20 is provided below the connecting plate 10, and a welding head 21 is installed at the lower end of the welding head mounting seat 20. Figure 1-3 shown.

[0062] Each set of rotating rods 71 ​​is connected to the inside of the welding head mounting seat 20 through the inner bearing 72 to play a role of connection and fixing. The locking portion 73 extends out of the upper end surface of the welding head mounting seat 20. Figure 3 and 7 shown.

[0063] The sprockets 76 on each set of self-locking devices 7 are connected and driven by the chain 22. A drive shaft 24 is installed at the lower end of one set of rotating rods 71. The lower end of the drive shaft 24 is connected to a servo motor 23 through a coupling. The servo motor 23 is vertically fixed inside the welding head mounting seat 20. Figure 6 shown.

[0064] Further, a base 5 is installed on the bottom surface of the inner chamber 2, a rotating column 6 is rotatably arranged in the base 5, the rotating column 6 extends upward into the inner chamber 2, a driving structure acting on the rotating column 6 is installed inside the base 5, a workpiece seat 30 is welded to the upper end of the rotating column 6, and a workpiece groove 65 for placing a workpiece is opened on the upper end surface of the workpiece seat 30, such as Figure 1 and 2 shown.

[0065] Furthermore, a rotating table 32 is rotatably arranged at the lower position of the workpiece seat 30. Figure 8 and 9 shown.

[0066] Specifically, an annular lifting track 33 is arranged at the edge of the upper end surface of the rotating table 32, and a slide groove 34 is arranged inside the annular lifting track 33. The slide groove 34 has a low friction coefficient. The slide groove 34 acts on a plurality of groups of lifting dust collecting structures 8. The slide groove 34 fluctuates up and down in a certain regular pattern, thereby causing the lifting column 80 to move up and down. Figure 8 and 9 shown.

[0067] Among them, a plurality of lifting dust suction structures 8 are evenly distributed around the outer side of the dust box 40, the top of the dust box 40 and the inner surface of the upper end of the workpiece seat 30 are riveted, and a dust suction fan 41 is installed at the bottom of the dust box 40. The ventilation structure on the dust suction fan 41 is connected to the outside of the workpiece seat 30 to play the role of exhaust, such as Figure 8 and 12 shown.

[0068] Specifically, the lifting dust suction structure 8 includes a lifting column 80, a slider 81, a dust suction straight pipe 82 and a dust collecting cover 83. Fig. 9 and 10 shown.

[0069] In this embodiment, the lifting column 80 is movably arranged inside the workpiece seat 30, and a slider 81 acting in the landslide groove 34 is installed at the lower end of the lifting column 80, and a dust suction straight pipe 82 is fixed to the upper end of the lifting column 80, and the bottom of the dust suction straight pipe 82 is in a sealed state. A guide groove 31 for the dust suction straight pipe 82 to pass through is provided on the upper end surface of the workpiece seat 30, which plays a role of limiting guidance, and a dust collecting hood 83 acting on the workpiece is connected to the dust suction straight pipe 82, and each group of dust collecting hoods 83 is facing the direction of the workpiece.

[0070] Furthermore, the lifting dust suction structure 8 also includes a fixing cylinder 84, an inner cavity 85, a spring seat 86, a return spring 87 and a dust suction hose 88. Fig. 9 and 10 shown.

[0071] In this embodiment, a fixed cylinder 84 is provided on the outer side of the dust suction straight pipe 82, and the upper end of the fixed cylinder 84 is fixed to the inner surface of the upper end of the workpiece seat 30, and an inner cavity 85 is opened inside the fixed cylinder 84 for the dust suction straight pipe 82 to pass through. The dust suction straight pipe 82 is located in the area of ​​the inner cavity 85 and is sleeved with a spring seat 86. The spring seat 86 moves linearly along the inner cavity 85, and a return spring 87 sleeved on the outer side of the dust suction straight pipe 82 is fixed between the spring seat 86 and the top of the fixed cylinder 84. The return spring 87 is used to maintain the contact force between the slider 81 and the slide groove 34.

[0072] In this embodiment, a dust suction hose 88 is provided between the lower end of the dust suction straight pipe 82 and the absorption chamber 42 of the dust collecting box 40. The dust suction hose 88 can be displaced by the movement of the dust suction straight pipe 82. As the absorption chamber 42 of the dust collecting box 40 is in a sealed state, the dust suction force is ensured.

[0073] A rotating shaft 35 is welded at the middle position of the lower end of the rotating table 32. The rotating shaft 35 drives the rotating table 32 to perform uniform circular motion. The lower end of the rotating shaft 35 is fixed through the first bearing seat 36 and the bottom of the workpiece seat 30. A large gear 37 is sleeved on the rotating shaft 35. A small gear 38 is meshed on one side of the large gear 37. The small gear 38 is sleeved on the output shaft of the uniform speed motor 39. The uniform speed motor 39 and the outer side surface of the first bearing seat 36 are connected and fixed, playing a role of connection and fixing. Fig.11 shown.

[0074] Furthermore, a protection plate 62 is fixed to the front end of the welding chassis 1, an electric door 63 is installed inside the protection plate 62, and a control panel 64 is installed on the outer surface of the protection plate 62 for controlling the welding process, such as Figure 1 and 2 shown.

[0075] When the welding head 21 is installed, the several groups of self-locking devices 7 on the welding head mounting seat 20 are synchronously inserted into the corresponding limiting platform 11, that is, the locking portion 73 passes through the gasket 12 and enters the elastic clip 15, and the two groups of clamping feet 16 on the elastic clip 15 are stretched open, so that the card slot 74 and the clamping feet 16 fit in. At this time, the two cannot move in the horizontal and vertical directions. Several groups of self-locking devices 7 are synchronously connected to fix the welding head 21. When the welding head 21 needs to be disassembled, the servo motor 23 is first started to drive a group of rotating rods 71 ​​to rotate, and the transmission is connected through the chain 22, so that the rotating rods 71 ​​on each group of self-locking devices 7 are synchronously rotated by the same 90°, thereby driving the top locking portion 73 to rotate (the arc rotating head 75 rotates around the rotating groove 14). During the rotation process, the card slot 74 on the locking portion 73 and the clamping feet 16 of the elastic clip 15 are separated, and the locking portion 73 loses its restraint and can be directly taken out from the limiting platform 11, thereby achieving the purpose of automatic disassembly.

[0076] When welding the workpiece in the workpiece slot 65 using the welding head 21, the dust suction fan 41 in the dust box 40 is first started to generate suction force on several groups of dust suction hoses 88 and dust suction straight pipes 82, and the dust hood 83 arranged around the workpiece is used to absorb the smoke generated by welding in time, and then the uniform speed motor 39 is started to drive the small gear 38 to rotate, and the rotating table 32 on the rotating shaft 35 is driven to slowly perform a circular motion by meshing with the large gear 37 to reduce speed. When the rotating table 32 moves, the annular lifting track 33 at the upper end performs a rotational motion, and the landslide groove 34 generates a force on the slider 81 at the lower end of the lifting dust suction structure 8, causing the lifting column 80 to drive the dust hood 83 to perform a lifting and reciprocating motion (with the help of the elastic force of the reset spring 87 when descending). During the lifting and lowering motion, the dust collection range of the dust collection hood 83 is expanded to prevent the smoke from overflowing outward, and the dust adsorbed on the hood body can also be shaken off. Embodiment 2

[0077] On the basis of the first embodiment, after the current dust box 40 collects the smoke, it can only discharge the smoke to the external environment. The smoke includes dust and toxic gases, which will pollute the surrounding environment. The dust box 40 does not have the function of automatic cleaning and pollution reduction. In order to solve the above technical problems, we set a movable cleaner 9 at the middle position of the absorption chamber 42 and directly above the dust suction fan 41. Figure 1-17 shown.

[0078] Specifically, the movable cleaner 9 includes a side mounting plate 91, a frame 92, a fume absorbing bag 93 and a ventilation gap 94. Figure 14-15 As shown.

[0079] In this embodiment, there are two groups of side mounting plates 91 that are symmetrically distributed. The edges between the two groups of side mounting plates 91 are connected by a number of groups of frames 92. Each group of frames 92 is sleeved with a smoke absorption bag 93. The smoke absorption bag 93 is stained with absorption liquid, which can intercept dust on the one hand and absorb most of the toxic gases on the other hand. A breathable gap 94 is formed between adjacent smoke absorption bags 93 to ensure smooth airflow above the dust suction fan 41.

[0080] Furthermore, the movable cleaner 9 includes a shaft 95, a second bearing seat 96, a first gear 97, a second gear 98 and a driving motor 99. Figure 14-15 shown.

[0081] In this embodiment, the other sides of the two sets of side mounting plates 91 are welded with shafts 95, which are fixed by the second bearing seat 96 and the wall of the dust box 40 to play a role of connection and fixing. A No. 1 gear 97 is sleeved on one set of the shafts 95, and a No. 2 gear 98 is meshed on the outer side of the No. 1 gear 97. The No. 2 gear 98 is sleeved on the output shaft of the drive motor 99, and the drive motor 99 is horizontally fixed inside the dust box 40.

[0082] A first receiving seat 43 is fixed to the inner wall of the dust box 40 and located on one side of the movable cleaner 9. Figure 12-16 shown.

[0083] Specifically, the inner side of the first storage seat 43 is provided with a first storage groove 44 for the movable cleaner 9 to extend into, and the two are matched with each other. An absorption liquid box body 45 is installed at the bottom of the first storage groove 44, and the absorption liquid box body 45 stores absorption liquid inside. A moistening sponge 46 is installed extending outward from the inside of the absorption liquid box body 45. The moistening sponge 46 acts on the moving smoke absorption bag 93. The moistening sponge 46 includes an absorption root and a moistening elastic part. The absorption root is located inside the absorption liquid box body 45, and the moistening elastic part can be automatically reset after being compressed. Figure 12-16 shown.

[0084] A second receiving seat 50 is fixed on the inner wall of the dust box 40 and on the other side of the movable cleaner 9. Figure 13-17 shown.

[0085] Specifically, the inner side of the second storage seat 50 is provided with a second storage groove 51 for the movable cleaner 9 to extend into, and the two are matched with each other. A diversion cross pipe 52 is installed on the top of the second storage groove 51, and a plurality of groups of high-pressure flushing heads 53 acting on the smoke absorption bag 93 are equidistantly installed at the bottom of the diversion cross pipe 52. A high-pressure water inlet pipe 54 is connected to the middle of the diversion cross pipe 52 and extends outward. The other end of the high-pressure water inlet pipe 54 is located inside the water tank 55, and a booster pump acting on the high-pressure water inlet pipe 54 is installed in the water tank 55. Figure 13-17 shown.

[0086] Furthermore, a liquid collecting tank 56 is obliquely arranged at the bottom of the second receiving tank 51, and a sewage pipe 57 is installed on the bottom of the liquid collecting tank 56 extending outward. The sewage pipe 57 passes through the workpiece seat 30 and is arranged outward. Fig.13 and 17 shown.

[0087] When the present embodiment is in use, the driving motor 99 is started to drive the second gear 98 to rotate, and a set of shafts 95 start to move through meshing transmission, causing the main body of the movable cleaner 9 to make a circular motion. The smoke sucked in from the dust suction hose 88 will enter the absorption chamber 42, and when passing through the rotating movable cleaner 9, it will contact the inner and outer surfaces of several groups of moistened smoke absorption bags 93 (the moving smoke absorption bags 93 will increase the contact frequency with the smoke), and the smoke will be fully absorbed. Each group of smoke absorption bags 93 will contact the moistened sponge 46 at the lower corner during the rotation process, and the moistened elastic part of the moistened sponge 46 is slightly squeezed by the skeleton 92 to transfer the absorption liquid on the moistened sponge 46 to the smoke absorption bag 93, thereby ensuring that the smoke absorption bag 93 has a continuous absorption function.

[0088] When a lot of smoke and dust is collected on the smoke absorption bags 93, the booster pump in the water tank 55 is turned on to draw clean water into the high-pressure water inlet pipe 54, flow into the diversion cross pipe 52 for diversion, and spray out obliquely downward through a number of groups of high-pressure flushing heads 53 to flush each group of smoke absorption bags 93 passing through the second receiving groove 51 in turn (flushing at the circumferential section position), so that the pollutants inside and outside the smoke absorption bags 93 are flushed into the liquid collecting tank 56 below, and then discharged outward along the sewage pipe 57.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly welding machine capable of automatically cleaning smoke, comprising a welding chassis (1), characterized in that: The welding machine box (1) is provided with an inner chamber (2), a manipulator (3) is installed in the inner chamber (2), a welding assembly (4) is installed at the upper end of the manipulator (3), the lower end surface of the welding assembly (4) comprises a connecting plate (10), and a plurality of groups of limit platforms (11) are evenly distributed at the lower end of the connecting plate (10); A washer (12) is provided in the middle of each group of the limit platforms (11), and the washer (12) is passed through by the self-locking device (7). The limit platforms (11) are fixed inside the U-shaped bracket (13) and the connecting plate (10). A rotation groove (14) is provided in the middle of the top of the U-shaped bracket (13). An elastic clip (15) is provided inside the U-shaped bracket (13). The lower end surface of the elastic clip (15) is riveted to the limit platform (11), and the middle parts of the two are connected. The elastic clip (15) includes two groups of clamping feet (16); The self-locking device (7) comprises a rotating rod (71), an inner bearing (72), a locking portion (73), a clamping groove (74), an arc rotating head (75) and a sprocket (76); the upper end of the rotating rod (71) is provided with a locking portion (73); the locking portion (73) penetrates the limit platform (11) and the elastic clip (15); the outer side surface of the locking portion (73) is provided with two groups of clamping grooves (74) that match the clamping feet (16); the top of the locking portion (73) is provided with an arc rotating head (75) that extends into the rotating groove (14); and the lower end of the rotating rod (71) is sleeved with a sprocket (76); A base (5) is installed on the bottom surface of the inner chamber (2), a rotating column (6) is rotatably arranged in the base (5), the rotating column (6) extends upward into the inner chamber (2), a workpiece seat (30) is welded to the upper end of the rotating column (6), a workpiece groove (65) for placing a workpiece is provided on the upper end surface of the workpiece seat (30), a rotating table (32) is rotatably arranged at the lower position inside the workpiece seat (30), and an annular ring is provided at the edge of the upper end surface of the rotating table (32). A lifting track (33), wherein a slide groove (34) is arranged inside the annular lifting track (33), wherein the slide groove (34) acts on a plurality of lifting dust suction structures (8), wherein the slide groove (34) rises and falls regularly, wherein the plurality of lifting dust suction structures (8) are evenly distributed around the outer side of a dust collecting box (40), wherein the top of the dust collecting box (40) is riveted to the inner surface of the upper end of the workpiece seat (30), and a dust suction fan (41) is installed at the bottom of the dust collecting box (40); The lifting dust suction structure (8) comprises a lifting column (80), a slider (81), a dust suction straight pipe (82) and a dust collecting hood (83); the lifting column (80) is movably arranged inside the workpiece seat (30); the lower end of the lifting column (80) is provided with a slider (81) that acts in the slide groove (34); the upper end of the lifting column (80) is fixed with a dust suction straight pipe (82); the upper end surface of the workpiece seat (30) is provided with a guide groove (31) for the dust suction straight pipe (82) to pass through; and the dust suction straight pipe (82) is connected to and provided with a dust collecting hood (83) that acts on the workpiece; The lifting dust suction structure (8) further comprises a fixed cylinder (84), an inner cavity (85), a spring seat (86), a return spring (87) and a dust suction hose (88); a fixed cylinder (84) is arranged on the outer side of the dust suction straight pipe (82); the upper end of the fixed cylinder (84) is fixed to the inner surface of the upper end of the workpiece seat (30); an inner cavity (85) for the dust suction straight pipe (82) to pass through is provided inside the fixed cylinder (84); a spring seat (86) is sleeved on the region of the dust suction straight pipe (82) located in the inner cavity (85); a return spring (87) sleeved on the outer side of the dust suction straight pipe (82) is fixed between the spring seat (86) and the top of the fixed cylinder (84); and a dust suction hose (88) is arranged between the lower end of the dust suction straight pipe (82) and the absorption cavity (42) of the dust collecting box (40); When the rotating platform (32) moves, the annular lifting track (33) at the upper end thereof performs a rotational motion, and the slide groove (34) generates a force on the slider (81) at the lower end of the lifting dust collecting structure (8), causing the lifting column (80) to drive the dust collecting cover (83) to perform a lifting and reciprocating motion, and when the dust collecting cover (83) descends, it is reset by the elastic force of the reset spring (87); A movable cleaner (9) is arranged at a middle position inside the absorption chamber (42) and directly above the dust suction fan (41), the movable cleaner (9) comprising a side mounting plate (91), a frame (92), a smoke absorption bag (93) and a ventilation gap (94), the side mounting plates (91) being symmetrically distributed in two groups, the edges between the two groups of side mounting plates (91) being connected by a plurality of groups of frames (92), a smoke absorption bag (93) being sleeved on each group of frames (92), and a ventilation gap (94) being formed between adjacent smoke absorption bags (93); The movable cleaner (9) comprises a shaft (95), a second bearing seat (96), a first gear (97), a second gear (98) and a driving motor (99); the other sides of the two sets of side mounting plates (91) are welded with shafts (95); the shafts (95) are fixed via the second bearing seat (96) and the wall of the dust collecting box (40); one set of the shafts (95) is sleeved with a first gear (97); the outer side of the first gear (97) is meshed with a second gear (98); the second gear (98) is sleeved on the output shaft of the driving motor (99); and the driving motor (99) is horizontally fixed inside the dust collecting box (40); A first receiving seat (43) is fixed to the inner wall of the dust collecting box (40) and is located on one side of the movable cleaner (9); a first receiving groove (44) is provided on the inner side of the first receiving seat (43) for the movable cleaner (9) to extend into; an absorption liquid box (45) is installed at the bottom of the first receiving groove (44); the absorption liquid box (45) stores absorption liquid inside; a moistening sponge (46) is installed inside the absorption liquid box (45) and extends outward; the moistening sponge (46) acts on the moving smoke absorption bag (93); A second receiving seat (50) is fixed to the inner wall of the dust collecting box (40) and is located on the other side of the movable cleaner (9). The inner side surface of the second receiving seat (50) is provided with a second receiving groove (51) for the movable cleaner (9) to extend into. A diversion transverse pipe (52) is installed at the top of the second receiving groove (51). A plurality of groups of high-pressure flushing heads (53) acting on the fume absorption bag (93) are installed at equal intervals at the bottom of the diversion transverse pipe (52). A high-pressure water inlet pipe (54) is provided at the middle of the diversion transverse pipe (52) to extend outwards and communicate with the diversion transverse pipe. The other end of the high-pressure water inlet pipe (54) is located inside the water tank (55). A liquid collecting groove (56) is provided at an angle at the bottom of the second receiving groove (51). A sewage pipe (57) is installed at the bottom of the liquid collecting groove (56) to extend outwards. The sewage pipe (57) passes through the workpiece seat (30) and is arranged outwards.

2. The environmentally friendly welding machine with automatic fume cleaning according to claim 1 is characterized in that: A welding head mounting seat (20) is arranged below the connecting plate (10), a welding head (21) is mounted on the lower end of the welding head mounting seat (20), each group of the rotating rods (71) is connected to the inside of the welding head mounting seat (20) via an inner bearing (72), the locking portion (73) extends out of the welding head mounting seat (20), the sprockets (76) on each group of the self-locking devices (7) are connected and driven via a chain (22), a driving shaft (24) is mounted on the lower end of one group of the rotating rods (71), the lower end of the driving shaft (24) is connected to a servo motor (23) via a coupling, and the servo motor (23) is vertically fixed inside the welding head mounting seat (20).

3. The environmentally friendly welding machine with automatic fume cleaning according to claim 1 is characterized in that: A rotating shaft (35) is welded at the middle position of the lower end of the rotating table (32), and the lower end of the rotating shaft (35) is fixed by means of a first bearing seat (36) and the bottom of the workpiece seat (30). A large gear (37) is sleeved on the rotating shaft (35), and a small gear (38) is meshedly provided on one side of the large gear (37). The small gear (38) is sleeved on the output shaft of the uniform speed motor (39), and the uniform speed motor (39) and the outer side surface of the first bearing seat (36) are connected and fixed.

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