Welding equipment for power distribution cabinet sheet metal part machining

Abstract

The invention relates to the technical field of welding equipment, in particular to power distribution cabinet sheet metal part machining welding equipment which comprises a working platform, a limiting supporting plate is fixedly mounted at the upper end of the working platform, a mounting seat is slidably connected to the outer surface of the limiting supporting plate, and a welding mechanism is arranged outside the mounting seat. And the welding mechanism comprises a mounting plate, a connecting plate and a welding gun seat, the bottom end of the welding gun seat is fixedly connected with a welding gun, and photosensitive sensors are fixedly mounted on the two sides of the welding gun. By adopting the arrangement of the welding smoke absorbing mechanism, smoke generated during welding of sheet metal parts is effectively recycled, through the design of the welding carbon particle collecting assembly, solid-state tiny welding carbon particles in the recycled smoke are automatically cleaned, welding wires are automatically supplied through the auxiliary wire feeding mechanism, and through cooperation with the rotating protective rotating cylinder, the welding wires are automatically fed. Intermittent abutting against welding wires on the inner side can be met, and the phenomenon of welding molten drops caused by the fact that the extending distance of the welding wires is too large due to the too high wire moving speed is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to welding equipment for processing sheet metal parts of a power distribution cabinet. Background Art

[0002] As an important part of the power system, the processing quality and welding technology of the sheet metal parts of the distribution cabinet are directly related to the structural strength, electrical performance and safety of the distribution cabinet. The spot welder is a commonly used welding equipment suitable for spot welding operations of sheet metal parts such as distribution cabinets. The spot welder generates high temperature through instantaneous discharge to melt the contact surfaces of the sheet metal parts and press them together. In the welding process of the sheet metal parts of the distribution cabinet, the generation of welding smoke is inevitable. During the rising process of these welding fumes, due to factors such as air flow and workshop layout, there may be a certain delay before they can be captured and purified and recycled by the welding smoke purifier. This delay may cause the welding smoke to spread in the workshop, which not only affects the working environment, but also poses a threat to the health of workers.

[0003] In the prior art, there is an electric welder with smoke removal and light protection functions, such as publication number CN206588467U, which includes a main body, an electric welder and a smoke removal device are fixedly installed in the inner cavity of the main body, a workbench is fixedly installed on the upper side of the main body, a sliding plate is fixedly installed on the middle upper side of the workbench, and a plate is placed on the upper side of the sliding plate, which solves the harm of smoke to workers and the pollution to the environment, and can also prevent strong light from damaging workers' eyes, making it easy for operators to use.

[0004] Although the above-mentioned document uses a smoke removal device to purify and recycle the smoke and dust generated during the welding process, in actual use, the welding smoke generated during welding rises, and the tiny smoke carbon particles in the welding smoke, if accumulated on the protective cover for a long time, may cause the welding head to be blocked. This blockage will not only affect the stability of the welding current and the welding quality, but may also cause consequences such as overheating and damage of the welding head. Moreover, once the welding wire is supplied too fast, it will cause molten droplets to appear during the welding process, affecting the welding effect.

[0005] Therefore, the present invention proposes a welding device for processing sheet metal parts of a distribution cabinet to solve the problem that tiny smoke carbon particles generated during welding of existing equipment accumulate on the protective cover and are difficult to handle, causing the welding head to be blocked, affecting the stability of the welding current and the welding quality. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a welding device for processing sheet metal parts of a power distribution cabinet to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for processing sheet metal parts of a power distribution cabinet, comprising a working platform, a limited support plate is fixedly installed on the upper end of the working platform, the outer surface of the limited support plate is slidably connected with a mounting seat, a welding mechanism is arranged outside the mounting seat, the welding mechanism comprises a mounting plate, a connecting plate and a welding gun seat, a welding gun is fixedly connected to the bottom end of the welding gun seat, photosensitive sensors are fixedly installed on both sides of the welding gun, the mounting plate is fixedly connected to the mounting seat by bolts, the upper end of the connecting plate is fixedly connected to the lower surface of the mounting plate, and the connecting plate The lower end is fixedly connected to the upper surface of the welding gun seat, and the outside of the welding gun seat is fixedly connected with a threaded sleeve, and a welding fume absorption mechanism is arranged on the lower side of the threaded sleeve, and the welding fume absorption mechanism includes an inner focusing flow cover threadedly connected to the outer wall of the lower side of the threaded sleeve, an outer absorption cover is arranged on the outside of the inner focusing flow cover, and a welding carbon particle collection assembly is arranged on the inner side of the outer absorption cover, and a protective rotating drum is arranged on the upper side of the outer absorption cover, and the protective rotating drum is rotatably installed on the outer side of the threaded sleeve, an auxiliary wire feeding mechanism is arranged between the protective rotating drum and the connecting plate, and welding wire is arranged on the inner side of the auxiliary wire feeding mechanism.

[0008] Preferably, the upper end of the outer absorption hood is fixedly connected to the outer surface of the inner focusing flow hood, the inner focusing flow hood is a conical bucket-shaped structure that is narrow at the top and wide at the bottom, absorption holes are evenly arranged on the inner wall of the inner focusing flow hood, an absorption cavity is arranged between the inner focusing flow hood and the outer absorption hood, a flow hole is arranged on the top surface of the inner cavity of the absorption cavity, and a negative pressure guide component is arranged on the inner side of the flow hole.

[0009] Preferably, the negative pressure guide assembly includes a lining plate and a second motor, the lining plate is fixedly mounted on the upper surface of the outer absorption cover, the second motor is fixedly mounted on the lining plate, a connecting rod is fixedly connected to the output shaft of the second motor, the outer surface of the connecting rod is rotatably connected to the inner wall of the outer absorption cover, an impeller is fixedly connected to the lower outer surface of the connecting rod, a connecting tooth plate is fixedly mounted on the upper outer surface of the connecting rod, the outer surface of the connecting tooth plate is meshed and rotatably engaged with a connecting tooth ring, and the connecting tooth ring is fixedly mounted on the lower end outer surface of the protective drum.

[0010] Preferably, a second connecting tooth plate is rotatably meshed on the outer surface of the connecting tooth ring, and both the second connecting tooth plate and the first connecting tooth plate extend to the inner side of the absorption chamber.

[0011] Preferably, a filter element is provided on the inner side of the absorption chamber, and the filter element includes an inner partition plate, and the inner partition plate is an annular plate structure fixedly installed between the outer ring surface of the inner focusing hood and the inner ring surface of the outer absorption hood, and a fireproof filter is fixedly installed on the inner wall of the inner partition plate.

[0012] Preferably, the welding carbon particle collection assembly includes an annular collection trough plate and a storage frame. The storage frame is connected to the lower end of the annular collection trough plate in a through manner. The annular collection trough plate is fixedly connected to the lower end of the outer absorption cover and fixedly connected to the outer surface of the inner converging cover. The剖切 cross-section of the annular collection trough plate is in a "C" shape structure. A chute is provided on the inner wall of the outer ring of the annular collection trough plate, and a memory cotton strip is arranged inside the chute. An outer ring plate is fixedly connected to the outer surface of the annular collection trough plate, and a walking member is arranged between the outer ring plate and the annular collection trough plate.

[0013] Preferably, the walking member includes a limiting tube, a sliding seat, and a motor three. The limiting tube is fixedly installed on the upper side of the outer ring plate. One end of the sliding seat is slidably connected to the outer surface of the limiting tube. The sliding seat is fixedly installed on the upper part of the limiting tube. A walking gear is fixedly connected to the output shaft of the sliding seat, and an internal gear ring is meshingly rotated on the outer surface of the walking gear. The internal gear ring is fixedly installed on the inner circumferential surface of the limiting tube.

[0014] Preferably, a scraping member is arranged at the end of the sliding seat away from the limiting tube. The scraping member includes a C-shaped scraping plate and a scraping strip. The C-shaped scraping plate is in a "C" shape plate structure, and the scraping strip is in a "7" shape plate structure. The C-shaped scraping plate and the scraping strip are integrally formed. The outer surface of the C-shaped scraping plate is movably connected to the inner circumferential surface of the annular collection trough plate, and the upper surface of the scraping strip is movably connected to the lower surface of the inner partition plate.

[0015] Preferably, the upper outer surface of the protective rotating cylinder is rotatably connected to the lower surface of the mounting plate. A plurality of abutting convex blocks are fixedly installed on the inner circumferential surface of the protective rotating cylinder and are arranged in a circular array about the central axis of the protective rotating cylinder. The outer surface of the abutting convex block is provided with a rounded corner, and an intermittent abutting assembly is arranged inside the abutting convex block.

[0016] Preferably, the intermittent abutting assembly includes a support arm rod. The support arm rod is in a "匚" shape plate structure with an upward opening. A sliding rod is slidably connected to the upper surface of one end of the support arm rod. One end of the sliding rod is fixedly connected to a wheel seat. A guiding touch wheel is rotatably installed on the inner surface of the wheel seat. A return spring is fixedly connected to the outer surface of the wheel seat away from the guiding touch wheel. The other end of the return spring is fixedly connected to the inner surface of the support arm rod. The return spring is slidably sleeved on the outside of the sliding rod. The end of the sliding rod away from the wheel seat is provided with a rounded corner, and the rounded corner end of the sliding rod is movably abutted against the outer surface of the abutting convex block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention proposes a welding device for processing sheet metal parts of a power distribution cabinet. The device effectively recovers the smoke generated during the welding of sheet metal parts by adopting the setting of a welding smoke absorption mechanism. The solid tiny welding carbon particles in the recovered smoke are self-cleaned by the design of a welding carbon particle collection component. The welding wire is automatically supplied by an auxiliary wire feeding mechanism. In conjunction with a rotating protective drum, intermittent resistance to the inner welding wire can be met, thereby avoiding the phenomenon of excessive extension of the welding wire due to excessive wire feeding speed, thereby causing the occurrence of welding droplets. The device further solves the problem that tiny smoke carbon particles generated during welding by existing equipment accumulate on the protective cover and are difficult to handle, causing the welding head to be blocked, thereby affecting the stability of the welding current and the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the side three-dimensional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection structure between the welding mechanism and the mounting seat of the present invention;

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the welding mechanism of the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the welding mechanism of the present invention;

[0024] Figure 6 It is a half-section structural schematic diagram of the welding mechanism of the present invention;

[0025] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at point A;

[0026] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the welding mechanism of the present invention;

[0027] Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure at B;

[0028] Fig.10 For the present invention Figure 8 A schematic diagram of the enlarged structure at C;

[0029] Fig.11 For the present invention Figure 8 A schematic diagram of the structure at D of FIG.

[0030] Fig.12 It is a schematic diagram of the connection structure between the auxiliary wire feeding mechanism and the welding gun of the present invention;

[0031] Fig.13 It is a schematic diagram of the connection structure between the walking member and the scraping member of the present invention;

[0032] Fig.14 For the present invention Fig.13 Enlarged structural diagram at E.

[0033] In the figure: 1, working platform; 11, limiting support plate; 12, mounting seat; 2, welding mechanism; 3, welding wire; 21, mounting plate; 22, connecting plate; 23, welding gun seat; 231, welding gun; 24, threaded sleeve; 25, inner cohesive hood; 250, absorption hole; 251, inner partition; 2511, fire filter; 26, outer absorption hood; 261, annular collecting trough plate; 2610, slide; 2611, outer ring plate; 2612, limiting tube; 2613, slide seat; 2614, motor three; 2615, walking gear; 2616, inner gear ring; 2617, C-type scraper; 2618, scraper strip; 26180, reserved groove; 26181, scraper needle; 262, storage Frame; 27, protective drum; 270, abutment convex block; 221, support arm; 222, motor one; 223, driving gear; 224, driven gear one; 2241, wire wheel one; 225, driven gear two; 2251, wire wheel two; 226, driven gear three; 2261, wire wheel three; 227, driven gear four; 2271, wire wheel four; 2211, slide bar; 2212, return spring; 2213, wheel seat; 2214, guide contact wheel; 28, photosensitive sensor; 281, lining plate; 282, motor two; 283, impeller one; 2831, connecting tooth plate one; 284, connecting tooth ring; 2841, connecting tooth plate two; 285, impeller two. DETAILED DESCRIPTION

[0034] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0035] For example, see Figure 1-14The present invention provides a technical solution: a welding device for processing sheet metal parts of a power distribution cabinet, comprising a working platform 1, a limited support plate 11 is fixedly installed on the upper end of the working platform 1, a mounting seat 12 is slidably connected to the outer surface of the limited support plate 11, a welding mechanism 2 is arranged outside the mounting seat 12, the welding mechanism 2 comprises a mounting plate 21, a connecting plate 22 and a welding gun seat 23, a welding gun 231 is fixedly connected to the bottom end of the welding gun seat 23, and light-sensitive sensors 28 are fixedly installed on both sides of the welding gun 231, the mounting plate 21 is fixedly connected to the mounting seat 12 by bolts, and the upper end of the connecting plate 22 is connected to the mounting plate 21 The lower surface is fixedly connected, the lower end of the connecting plate 22 is fixedly connected to the upper surface of the welding gun seat 23, the outside of the welding gun seat 23 is fixedly connected with a threaded sleeve 24, and a welding smoke absorption mechanism is arranged on the lower side of the threaded sleeve 24. The welding smoke absorption mechanism includes an inner coherent flow cover 25 threadedly connected to the outer wall of the lower side of the threaded sleeve 24, and an outer absorption cover 26 is arranged on the outside of the inner coherent flow cover 25. A welding carbon particle collection component is arranged on the inner side of the outer absorption cover 26, and a protective rotating drum 27 is arranged on the upper side of the outer absorption cover 26. The protective rotating drum 27 is rotatably installed on the outer side of the threaded sleeve 24, and a protective rotating drum 27 is arranged between the protective rotating drum 27 and the connecting plate 22. An auxiliary wire feeding mechanism is provided, and a welding wire 3 is provided on the inner side of the auxiliary wire feeding mechanism; the auxiliary wire feeding mechanism includes a motor 1 222, a wire wheel 1 2241, a wire wheel 2 2251, a wire wheel 3 2261 and a wire wheel 4 2271, the motor 1 222 is fixedly installed on the upper end of the support arm 221, and a driving gear 223 is fixedly connected to the output shaft of the motor 1 222, and the outer surfaces of both sides of the driving gear 223 are respectively meshed and rotated with a driven gear 1 224 and a driven gear 2 225, and the outer surfaces of the driven gear 1 224 and the driven gear 2 225 are respectively meshed and rotated with a driven gear 3 226 The driven gear 4 227, the driven gear 1 224, the driven gear 2 25, the driven gear 3 226 and the driven gear 4 227 are all fixedly connected with the shaft rod, the wire wheel 1 2241, the wire wheel 2 2251, the wire wheel 3 2261 and the wire wheel 4 2271 are respectively fixedly connected with the driven gear 1 224, the driven gear 2 225, the driven gear 3 226 and the driven gear 4 227 through the shaft rod, and the outer surfaces of the wire wheel 1 2241, the wire wheel 2 2251, the wire wheel 3 2261 and the wire wheel 4 2271 are respectively movably connected with the outer surface of the welding wire 3;

[0036] In this embodiment, if Figure 6-Figure 8As shown, the automatic supply of welding wire 3 is realized through the auxiliary wire feeding mechanism, and the extension of welding wire 3 at the welding end of welding gun 231 is controlled to form a welding spot with the surface of sheet metal. The specific wire feeding operation is to control the motor 1 222 to start, so that its output shaft rotates to realize the rotation of driving gear 223. When driving gear 223 is in counterclockwise rotation, driven gear 1 224 and driven gear 2 225 on both sides are adapted to mesh and synchronously realize clockwise rotation. At this time, driven gear 3 226 and driven gear 4 227 are in counterclockwise rotation, so that wire feeding wheel 1 2241 and wire feeding wheel 3 2261, wire feeding wheel 2 2251 and wire feeding wheel 4 2271 are driven to rotate relative to each other, thereby realizing the automatic wire feeding action of welding wire 3. In the process of automatic supply of welding wire 3, the welding work of sheet metal is carried out synchronously.

[0037] Embodiment 2, refer to the attached Figure 1-14 On the basis of the first embodiment, in order to realize the effective capture and absorption of welding fume generated during welding: the upper end of the outer absorption cover 26 is fixedly connected to the outer surface of the inner focusing cover 25, the inner focusing cover 25 is a conical bucket-shaped structure that is narrow at the top and wide at the bottom, and absorption holes 250 are evenly opened on the inner wall of the inner focusing cover 25, an absorption cavity is arranged between the inner focusing cover 25 and the outer absorption cover 26, and a flow hole is opened on the top surface of the inner cavity of the absorption cavity, and a negative pressure guide component is arranged on the inner side of the flow hole; the negative pressure guide component includes a lining plate 281 and a motor 282, the lining plate 281 is fixedly installed on the upper surface of the outer absorption cover 26, the motor 282 is fixedly installed on the lining plate 281, and a connecting rod is fixedly connected to the output shaft of the motor 282, and the outer surface of the connecting rod is connected to the inner wall of the outer absorption cover 26. Rotationally connected, the lower outer surface of the connecting rod is fixedly connected with an impeller 283, the upper outer surface of the connecting rod is fixedly installed with a connecting tooth plate 2831, the outer surface of the connecting tooth plate 2831 is meshed and rotated with a connecting tooth ring 284, and the connecting tooth ring 284 is fixedly installed on the outer surface of the lower end of the protective rotating drum 27; the outer surface of the connecting tooth ring 284 is meshed and rotated with a connecting tooth plate 2841, and the connecting tooth plate 2841 and the connecting tooth plate 1 2831 both extend to the inner side of the absorption chamber; a filter element is arranged on the inner side of the absorption chamber, and the filter element includes an inner partition plate 251, and the inner partition plate 251 is an annular plate structure and is fixedly installed between the outer ring surface of the inner condenser 25 and the inner ring surface of the outer absorption hood 26, and a fireproof filter screen 2511 is fixedly installed on the inner wall of the inner partition plate 251;

[0038] In this embodiment, when the photosensitive sensor 28 senses the welding operation, the control device power source motor 282 is turned on, triggering the negative pressure guide component to realize the recovery of welding fume, and the fume passes through the absorption hole 250 into the absorption cavity formed by the inner coherent flow cover 25 and the outer absorption cover 26. The fume continues to rise under the influence of negative pressure and is discharged outward through the flow hole. In this process, the welding carbon particles in the fume will be intercepted by the fireproof filter 2511 and accumulated at the bottom of the fireproof filter 2511. It should be noted that when the motor 282 is electrically connected to the photosensitive sensor 28 to realize the drive, the motor 282 controls its output. The output shaft rotates and provides power output for the connecting rod. When the impeller 283 rotates, the connecting tooth plate 2831 rotates synchronously, and the connecting tooth plate 2831 is adapted to mesh with the connecting tooth ring 284. At this time, the connecting tooth ring 284 rotates, and multiple sets of connecting tooth plates 2841 drive the impeller 285 to rotate, so that multiple sets of impellers 285 rotate synchronously, accelerate the diversion speed of the welding smoke on the inner side of the coherent hood 25, reduce energy consumption, and accelerate the efficient absorption of smoke generated during sheet metal welding. It should also be noted that when the photosensitive sensor 28 no longer senses the welding work, the motor 282 stops in time to realize the automation of welding smoke absorption.

[0039] Embodiment 3, refer to the attached Figure 1-14 On the basis of the second embodiment, in order to realize the automatic cleaning of the particles accumulated inside the absorption chamber and on the inner wall: the welding carbon particle collection component includes an annular collection slot plate 261 and a storage frame 262, the storage frame 262 is connected with the lower end of the annular collection slot plate 261, the annular collection slot plate 261 is fixedly connected with the lower end of the outer absorption cover 26 and the outer surface of the inner focusing cover 25, the cross-section of the annular collection slot plate 261 is a "C" shaped structure, a slide groove 2610 is provided on the inner wall of the outer ring of the annular collection slot plate 261, a memory cotton strip is arranged on the inner side of the slide groove 2610, and the outer ring surface of the annular collection slot plate 261 is fixedly connected with the outer surface of the outer absorption cover 26 and the outer surface of the inner focusing cover 25. An outer ring plate 2611 is connected, and a traveling member is arranged between the outer ring plate 2611 and the annular collecting trough plate 261; the traveling member includes a limiting tube 2612, a slide 2613 and a motor 3 2614, the limiting tube 2612 is fixedly mounted on the upper side of the outer ring plate 2611, one end of the slide 2613 is slidably connected to the outer surface of the limiting tube 2612, the slide 2613 is fixedly mounted on the upper part of the limiting tube 2612, a traveling gear 2615 is fixedly connected to the output shaft of the slide 2613, the outer surface of the traveling gear 2615 is meshed and rotated with an inner gear ring 2616, and the inner gear ring 2616 is fixedly mounted on the inner annular surface of the limiting tube 2612;

[0040] In this embodiment, if Figure 8-Figure 11As shown, the inner wall of the outer absorption cover 26 is designed to be a slightly inwardly contracted inclined surface, and the bottom of the outer absorption cover 26 is combined with the annular collection slot plate 261. The annular design of the annular collection slot plate 261 can increase the volume of the collected welding carbon particles. When it is necessary to clean the particles on the side wall of the outer absorption cover 26 and the inner side of the annular collection slot plate 261, the control motor 3 2614 is turned on to rotate the travel gear 2615. Under the dual limiting action of the inner gear ring 2616 and the limiting tube 2612, the travel gear 2615 drives the slide 2613 and the scraper as a whole to make a circular motion around the limiting tube 2612. It is worth noting that a memory cotton strip is arranged on the inner side of the slide 2610. When the slide 2613 slides on the inner wall of the slide 2610, the memory cotton strip can prevent the discharge of welding carbon particles and avoid the leakage of absorbed smoke.

[0041] Embodiment 4, refer to the attached Figure 1-14 On the basis of the third embodiment, in order to further scrape off the accumulated particles in the absorption chamber and the lower side of the fireproof filter 2511, the present embodiment adds a scraper: a scraper is provided at one end of the slide 2613 away from the limit tube 2612, and the scraper includes a C-shaped scraper 2617 and a scraper strip 2618. The C-shaped scraper 2617 is a "C"-shaped plate structure, and the scraper strip 2618 is a "7"-shaped plate structure. The C-shaped scraper 2617 and the scraper strip 2618 is an integrally formed structure, the outer surface of the C-shaped scraper 2617 is movably connected to the inner ring surface of the annular collecting slot plate 261, and the upper surface of the scraper bar 2618 is movably connected to the lower surface of the inner partition plate 251; a reserved groove 26180 is opened on the inner wall of the upper end of the scraper bar 2618, and a scraper mesh needle 26181 is fixedly installed on the inner surface of the reserved groove 26180, and the scraper mesh needle 26181 is arranged in an equidistant array horizontally with respect to the reserved groove 26180

[0042] In this embodiment, if Figure 13-Figure 14 As shown, the C-shaped scraper 2617 and the scraper strip 2618 move with the circular movement of the slide 2613. At this time, the C-shaped scraper 2617 is in close contact with the inner wall of the annular collection groove plate 261, which can accelerate the welding carbon to enter the interior of the storage frame 262. The special shape design of the scraper strip 2618 can not only meet the needs of scraping the particles on the side wall of the outer absorption cover 26, but also through the contact between the scraper needle 26181 and the fireproof filter 2511, the welding carbon accumulated at the bottom of the fireproof filter 2511 will be swept away. Here, a reserved groove 26180 is opened on the top of the scraper strip 2618, which will not cause the accumulation of welding carbon on the top of the scraper strip 2618, and realize the self-cleaning of the fireproof filter 2511.

[0043] Embodiment 5, refer to the attached Figure 1-14, on the basis of the fourth embodiment, in order to avoid the phenomenon of molten droplets occurring in the welding torch 231 due to the difficulty in controlling the wire feeding speed during the welding process: the upper outer surface of the protective rotating cylinder 27 is rotatably connected to the lower surface of the mounting plate 21, and a抵触凸块 270 is fixedly installed on the inner ring surface of the protective rotating cylinder 27. There are multiple groups of抵触凸块 270, which are arranged in a circular array about the central axis of the protective rotating cylinder 27. The outer surface of the抵触凸块 270 is provided with a rounded corner, and an intermittent抵触组件 is arranged inside the抵触凸块 270; the intermittent抵触组件 includes a support arm rod 221. The support arm rod 221 has a "匚"-shaped plate-like structure with an upward opening. A sliding rod 2211 is slidably connected to the upper surface of one end of the support arm rod 221. One end of the sliding rod 2211 is fixedly connected to a wheel seat 2213. A guiding contact wheel 2214 is rotatably installed on the inner surface of the wheel seat 2213. A return spring 2212 is fixedly connected to the outer surface of the wheel seat 2213 on the side away from the guiding contact wheel 2214. The other end of the return spring 2212 is fixedly connected to the inner surface of the support arm rod 221. The return spring 2212 is slidably sleeved outside the sliding rod 2211. One end of the sliding rod 2211 away from the wheel seat 2213 is provided with a rounded corner, and the rounded corner end of the sliding rod 2211 is movably abutted against the outer surface of the抵触凸块 270;

[0044] In this embodiment, the protective rotating cylinder 27 is driven by the negative pressure diversion assembly to rotate. During the rotation, multiple groups of抵触凸块 270 added inside the protective rotating cylinder 27 will intermittently abut against the rounded corner end of the sliding rod 2211. When the rounded corner part of the抵触凸块 270 passes through the rounded corner end of the sliding rod 2211, the sliding rod 2211 is pushed inward, driving the wheel seat 2213 and the guiding contact wheel 2214 to move toward the side of the welding wire 3. At this time, the return spring 2212 is stretched. When the guiding contact wheel 2214 abuts against the welding wire 3, the wire feeding speed of the welding wire 3 is controlled. When a group of抵触凸块 270 continues to rotate away from the rounded corner end of the sliding rod 2211, the guiding contact wheel 2214 returns to its initial position under the reverse elastic force of the return spring 2212, and the guiding contact wheel 2214 briefly releases the abutment against the welding wire 3. In this way, the next group of抵触凸块 270 continues to abut against the sliding rod 2211, realizing the intermittent abutment against the welding wire 3. It should be noted that the rotation speed of the protective rotating cylinder 27 can control the time interval between the abutment of the guiding contact wheel 2214 and the welding wire 3.

[0045] Example six, referring to the appendix Figure 1-14 , on the basis of the fifth embodiment, the present invention also provides a use method of a welding device for processing a power distribution cabinet sheet metal part, including the following steps:

[0046] Step one: First, assemble the welding torch 231 by matching the mounting plate 21 with the connecting plate 22, and complete the assembly of the welding fume absorption mechanism by using the threaded sleeve seat 24 and the threaded adaptation of the inner converging hood 25;

[0047] Step 2: Automatically supply the welding wire 3 through the auxiliary wire feeding mechanism, control the extension of the welding wire 3 at the welding end of the welding gun 231 to form a welding spot with the surface of the sheet metal, control the motor 1 222 to start, so that its output shaft rotates to realize the rotation of the driving gear 223. When the driving gear 223 is in counterclockwise rotation, the driven gear 1 224 and the driven gear 2 225 on both sides are adapted to bite and synchronously realize clockwise rotation. At this time, the driven gear 3 226 and the driven gear 4 227 are in counterclockwise rotation, so that the wire wheel 1 2241 and the wire wheel 3 2261, the wire wheel 2 2251 and the wire wheel 4 2271 are driven to rotate relative to each other, so as to realize the automatic wire feeding action of the welding wire 3; in the process of automatic feeding of the welding wire 3, the welding work of the sheet metal is carried out synchronously;

[0048] Step 3: When the photosensitive sensor 28 senses the welding operation, the control device power source motor 282 is turned on, triggering the negative pressure guide component to realize the recovery of welding fume. The fume passes through the absorption hole 250 and enters the absorption cavity formed by the inner coherent flow cover 25 and the outer absorption cover 26. The fume continues to rise under the influence of negative pressure and is discharged outward through the flow hole. In this process, the welding carbon particles in the fume will be intercepted by the fireproof filter 2511 and accumulated at the bottom of the fireproof filter 2511. It should be noted that between the motor 282 and the photosensitive sensor When the electrical connection 28 is realized to drive, the motor 282 controls the output shaft thereof to rotate and provides power output for the connecting rod. When the impeller 1 283 rotates, the connecting tooth plate 1 2831 rotates synchronously, and the connecting tooth plate 1 2831 is adapted to mesh with the connecting tooth ring 284. At this time, the connecting tooth ring 284 rotates, and the multiple sets of connecting tooth plates 2841 further drive the impeller 2 285 to rotate, so that the multiple sets of impellers 285 rotate synchronously, thereby accelerating the diversion speed of the welding fume inside the inner coherent hood 25, reducing energy consumption, and accelerating the efficient absorption of the fume generated during the welding of sheet metal parts.

[0049] Step 4. When it is necessary to clean the particles on the side wall of the outer absorption cover 26 and the inner side of the annular collection slot plate 261, control motor three 2614 to turn on, so that the travel gear 2615 rotates. Under the dual limiting action of the inner gear ring 2616 and the limiting tube 2612, the travel gear 2615 drives the slide 2613 and the scraper as a whole to make a circular motion around the limiting tube 2612, and then the C-shaped scraper 2617 and the scraper strip 2618 move with the circular movement of the slide 2613. At this time, the C-shaped scraper 2617 is in close contact with the inner wall of the annular collection slot plate 261, and the weld carbon that is finally swept away enters the interior of the storage frame 262 for centralized collection. The centralized processing of the collected weld carbon can be achieved by only disassembling the storage frame 262.

[0050] 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. A welding device for processing sheet metal parts of a power distribution cabinet, comprising a working platform (1), a limit support plate (11) being fixedly mounted on the upper end of the working platform (1), and a mounting seat (12) being slidably connected to the outer surface of the limit support plate (11), characterized in that: A welding mechanism (2) is arranged outside the mounting seat (12), and the welding mechanism (2) comprises a mounting plate (21), a connecting plate (22) and a welding gun seat (23); a welding gun (231) is fixedly connected to the bottom end of the welding gun seat (23); light-sensitive sensors (28) are fixedly installed on both sides of the welding gun (231); the mounting plate (21) is fixedly connected to the mounting seat (12) by bolts; the upper end of the connecting plate (22) is fixedly connected to the lower surface of the mounting plate (21); the lower end of the connecting plate (22) is fixedly connected to the upper surface of the welding gun seat (23); and the outside of the welding gun seat (23) is fixedly connected to a threaded sleeve ( 24), a welding fume absorption mechanism is arranged at the lower side of the threaded sleeve (24), the welding fume absorption mechanism comprises an inner focusing hood (25) threadedly connected to the outer wall of the lower side of the threaded sleeve (24), an outer absorption hood (26) is arranged outside the inner focusing hood (25), a welding carbon particle collection assembly is arranged inside the outer absorption hood (26), a protective rotating drum (27) is arranged on the upper side of the outer absorption hood (26), the protective rotating drum (27) is rotatably mounted on the outer side of the threaded sleeve (24), an auxiliary wire feeding mechanism is arranged between the protective rotating drum (27) and the connecting plate (22), and a welding wire (3) is arranged inside the auxiliary wire feeding mechanism.

2. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 1, characterized in that: The upper end of the outer absorption cover (26) is fixedly connected to the outer surface of the inner focusing cover (25); the inner focusing cover (25) is a conical bucket-shaped structure that is narrow at the top and wide at the bottom; absorption holes (250) are evenly arranged on the inner wall of the inner focusing cover (25); an absorption cavity is arranged between the inner focusing cover (25) and the outer absorption cover (26); a flow hole is arranged on the inner cavity top surface of the absorption cavity; a negative pressure guide assembly is arranged on the inner side of the flow hole.

3. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 2 is characterized in that: The negative pressure guide assembly includes a lining plate (281) and a second motor (282), wherein the lining plate (281) is fixedly mounted on the upper surface of the outer absorption cover (26), and the second motor (282) is fixedly mounted on the lining plate (281). A connecting rod is fixedly connected to the output shaft of the second motor (282), and the outer surface of the connecting rod is rotatably connected to the inner wall of the outer absorption cover (26). An impeller one (283) is fixedly connected to the lower outer surface of the connecting rod, and a connecting tooth plate one (2831) is fixedly mounted on the upper outer surface of the connecting rod. The outer surface of the connecting tooth plate one (2831) is meshed and rotatably engaged with a connecting tooth ring (284), and the connecting tooth ring (284) is fixedly mounted on the lower end outer surface of the protective rotating drum (27).

4. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 3 is characterized in that: The outer surface of the connecting tooth ring (284) is meshed and rotatably engaged with a second connecting tooth plate (2841), and the second connecting tooth plate (2841) and the first connecting tooth plate (2831) both extend to the inner side of the absorption chamber.

5. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 4, characterized in that: A filter element is arranged on the inner side of the absorption chamber, and the filter element comprises an inner partition plate (251). The inner partition plate (251) is an annular plate structure fixedly installed between the outer ring surface of the inner focusing cover (25) and the inner ring surface of the outer absorption cover (26), and a fireproof filter screen (2511) is fixedly installed on the inner wall of the inner partition plate (251).

6. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 5, characterized in that: The welding carbon particle collection assembly comprises an annular collection slot plate (261) and a storage frame (262); the storage frame (262) is connected to the lower end of the annular collection slot plate (261); the annular collection slot plate (261) is fixedly connected to the lower end of the outer absorption cover (26) and to the outer surface of the inner focusing cover (25); the cross section of the annular collection slot plate (261) is in a "C"-shaped structure; a slide groove (2610) is provided on the inner wall of the outer ring of the annular collection slot plate (261); a memory cotton strip is provided on the inner side of the slide groove (2610); the outer ring surface of the annular collection slot plate (261) is fixedly connected to an outer ring plate (2611); a walking member is provided between the outer ring plate (2611) and the annular collection slot plate (261).

7. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 6, characterized in that: The travel member comprises a limit tube (2612), a slide seat (2613) and a motor three (2614); the limit tube (2612) is fixedly mounted on the upper side of the outer ring plate (2611); one end of the slide seat (2613) is slidably connected to the outer surface of the limit tube (2612); the slide seat (2613) is fixedly mounted on the upper part of the limit tube (2612); a travel gear (2615) is fixedly connected to the output shaft of the slide seat (2613); an inner gear ring (2616) is meshed and rotatably engaged on the outer surface of the travel gear (2615); and the inner gear ring (2616) is fixedly mounted on the inner ring surface of the limit tube (2612).

8. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 7, characterized in that: A scraper is provided at one end of the slide seat (2613) away from the limiting tube (2612), and the scraper includes a C-shaped scraper (2617) and a scraper strip (2618). The C-shaped scraper (2617) is a "C"-shaped plate structure, and the scraper strip (2618) is a "7"-shaped plate structure. The C-shaped scraper (2617) and the scraper strip (2618) are an integrally formed structure. The outer surface of the C-shaped scraper (2617) is movably connected to the inner annular surface of the annular collecting trough plate (261), and the upper surface of the scraper strip (2618) is movably connected to the lower surface of the inner partition (251).

9. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 1, characterized in that: The outer surface of the upper end of the protective rotating cylinder (27) is rotatably connected to the lower surface of the mounting plate (21); a resisting protrusion (270) is fixedly mounted on the inner ring surface of the protective rotating cylinder (27); the resisting protrusions (270) are provided in multiple groups and are arranged in a circular array about the central axis of the protective rotating cylinder (27); the outer surface of the resisting protrusion (270) is provided with a rounded corner; and an intermittent resisting assembly is provided on the inner side of the resisting protrusion (270).

10. The welding equipment for processing sheet metal parts of a power distribution cabinet according to claim 9, characterized in that: The intermittent contact assembly includes a support arm rod (221). The support arm rod (221) is in a "C"-shaped plate structure with an upward opening. A slide rod (2211) is slidably connected to the upper surface of one end of the support arm rod (221). One end of the slide rod (2211) is fixedly connected to a wheel seat (2213). A guiding contact wheel (2214) is rotatably installed on the inner surface of the wheel seat (2213). A return spring (2212) is fixedly connected to the outer surface of the side of the wheel seat (2213) away from the guiding contact wheel (2214). The other end of the return spring (2212) is fixedly connected to the inner surface of the support arm rod (221). The return spring (2212) is slidably sleeved on the outside of the slide rod (2211). One end of the slide rod (2211) away from the wheel seat (2213) is provided with a rounded corner, and the rounded corner end of the slide rod (2211) is in movable contact with the outer surface of the contact bump (270).

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