CN113510373B

CN113510373B - High-efficiency welding equipment based on high-power laser flight welding

Info

Publication number: CN113510373B
Application number: CN202110456429.1A
Authority: CN
Inventors: 马韬; 李欣明
Original assignee: Suzhou Xinhua Laser Technology Co ltd
Current assignee: Suzhou Xinhua Laser Technology Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2023-01-24
Anticipated expiration: 2041-04-27
Also published as: CN113510373A

Abstract

The invention discloses high-efficiency welding equipment based on high-power laser flight welding, which comprises a rack, a positioning assembly and a welding assembly, wherein the welding assembly is arranged in the middle of the top end of the rack in a sliding manner, and the welding assembly can slide left and right or front and back relative to the rack so as to realize linear welding of workpieces; a workbench is arranged right below the welding assembly, a rotating disc is rotatably arranged in the middle of the workbench and is driven to rotate by a rotating motor fixed below the rack; the positioning assemblies are arranged on the rotating disc in a bilaterally symmetrical sliding mode, the left side of the upper end of the rack is also provided with a dust collection and purification device, and the dust collection and purification device is communicated with the welding assembly and is used for cleaning a welding area of a workpiece before welding and absorbing and purifying welding smoke; the positioning assembly is internally provided with a clamping device for clamping and stabilizing a workpiece to be welded, and the inclination angle of the clamping device can be adjusted to adapt to welding of workpieces with different welding included angles.

Description

High-efficiency welding equipment based on high-power laser flight welding

Technical Field

The invention belongs to the technical field of laser welding, and particularly relates to high-efficiency welding equipment based on high-power laser flight welding.

Background

Laser welding is an efficient and precise welding method using a laser beam with high energy density as a heat source, and is widely used due to the advantages of high welding speed, large depth-to-width ratio and the like; however, according to research, the existing high-efficiency welding equipment based on high-power laser flight welding often has the following problems:

1. when the plate workpiece is welded, the plate workpiece is fixed in a manual fastening mode, so that the operation is complicated; moreover, the included angle between two plates cannot be adjusted, the welding operation between the plates with different included angles cannot be adapted, and the limitation is large;

2. the welding area needs to be cleaned manually before the plates are welded, so that the efficiency is low, the cleaning is not thorough, and scraps still remain in the welding area, so that the welding cracks are generated, and the welding effect is influenced; moreover, a device for absorbing and purifying welding smoke dust is not arranged, so that the welding smoke dust is directly diffused into the environment to pollute the air, and the environmental protection property is poor;

3. the clamping device is not provided with a cleaning assembly, so that a plurality of chips are remained on the clamping surface for clamping different workpieces for many times, the clamping stability is influenced, and meanwhile, the workpiece surface is extremely easy to clamp, so that the subsequent processing or use is influenced.

Therefore, those skilled in the art have provided an efficient welding device based on high power laser flight welding to solve the problems set forth in the background art.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: the high-efficiency welding equipment based on the high-power laser flight welding comprises a rack, a positioning assembly and a welding assembly, wherein the welding assembly is slidably mounted in the middle of the top end of the rack, and the welding assembly can slide left and right or front and back relative to the rack so as to realize linear welding of workpieces; a workbench is arranged right below the welding assembly, a rotating disc is rotatably arranged in the middle of the workbench and is driven to rotate by a rotating motor fixed below the rack; the positioning components are arranged on the rotating disc in a bilaterally symmetrical sliding manner and driven to slide by the air cylinder fixed on the rotating disc; the left side of the upper end of the rack is also provided with a dust collection and purification device which is communicated with the welding assembly and used for cleaning a welding area of a workpiece before welding and absorbing clean welding smoke;

the positioning assembly is internally provided with a clamping device for clamping and stabilizing a workpiece to be welded, and the inclination angle of the clamping device can be adjusted to adapt to welding of workpieces with different welding included angles.

Further, preferably, the welding assembly comprises a pneumatic slide rail, a laser welding gun and a dust collecting device, and the laser welding gun is slidably arranged on the pneumatic slide rail so as to realize the vertical displacement of the laser welding gun; a dust collecting device is slidably mounted on the left side of the pneumatic sliding rail, and the upper end of the dust collecting device is driven to slide by a telescopic rod fixed on the pneumatic sliding rail;

the top end of the pneumatic sliding rail is driven by the stepping motor to rotate so as to realize that the pneumatic sliding rail rotates within 90 degrees in the clockwise direction.

Preferably, the dust collecting device comprises a supporting seat, a dust hood and a second adjusting rod, the lower end of the supporting seat is communicated with the dust hood through a threaded hose, the left end of the dust hood is rotatably connected with the telescopic end of the second adjusting rod, and the tail end of the second adjusting rod is rotatably arranged on the supporting seat;

the inside of the supporting seat is of a cavity structure, and the top of the supporting seat is communicated with a dust collection and purification device through a hose;

and a smoke concentration detector is arranged on the right side of the lower end of the dust hood.

Further, preferably, the dust hood comprises a guide plate, a protective net and a sealing plate, the guide plate is fixedly arranged in the middle of the dust hood, and the protective net is arranged between the side surface of the bottom end of the guide plate and the inner wall of the dust hood;

the through-hole has been seted up at the bottom middle part of guide plate, just, the side upper end circumference of guide plate rotates and is provided with a plurality of closing plates, just, every the lower extreme of closing plate all rotates with the flexible section of rotating the telescopic link of installing on the suction hood and is connected, a plurality of and closing plate assorted vents have been seted up to guide plate side circumference.

Preferably, the positioning assembly comprises a clamping device, a fixed sliding seat and a dust collection box, a support bracket is arranged at the right end of the fixed sliding seat in a sliding manner and driven to slide by a telescopic rod fixed at the lower end of the fixed sliding seat, a supporting plate is rotatably arranged in the middle of the upper end of the support bracket, the left side of the lower end surface of the supporting plate is rotatably connected with the telescopic end of the telescopic rod rotatably arranged on the support bracket, and the clamping device is fixedly arranged on the supporting plate; the dust collection box is fixedly arranged on the left side of the fixed sliding seat, and the upper end of the dust collection box is communicated with the clamping device through a dust collection pipe.

Preferably, the clamping device comprises a protective casing, a sliding rod and a pressing belt, wherein two protective casings are slidably sleeved at the upper end and the lower end of the sliding rod, a buffer plate is slidably arranged in the middle of the lower one of the two protective casings, and the bottom end of the buffer plate is fixedly connected with the bottom wall of each protective casing through a first spring; two lower end faces positioned above the protective casing are provided with compression belts in the areas corresponding to the buffer plates, and the right ends of the compression belts are driven by micro motors fixed outside the protective casing to rotate clockwise

A second spring is sleeved on the part, located between the two protective casing bodies, of the sliding rod;

the middle part of one lower end face of the two protective casings positioned at the lower part is driven to slide by a top pressure rod fixed on the supporting plate.

Further, preferably, a dust suction pipe orifice is arranged on the left side of one lower end face of the two protection casing bodies, which is positioned above the two protection casing bodies, and the dust suction pipe orifice is of a telescopic structure so as to be suitable for stably clamping workpieces with different thicknesses; the dust collection pipe orifice can be attached to the left end of the buffer plate and absorbs dust scraps at the left end of the upper end face of the dust collection pipe orifice.

Further, as a preferred mode, the upper half surface of the pressing belt is provided with flexible bristles for cleaning the surface of the buffer plate.

Further, preferably, a plurality of cleaning brushes are rotatably provided on one top wall of the two protective casings above, and an area occupied by the plurality of cleaning brushes matches with an area of the upper half of the pressing belt.

Compared with the prior art, the invention has the beneficial effects that:

1. in the equipment, the plate to be welded is placed between the two protective casing shells in the clamping device, and the top pressure rod is controlled to clamp the plate stably, so that the operation steps are greatly simplified; meanwhile, the inclination angle of the clamping device can be adjusted by controlling the telescopic rod at the left end of the supporting plate, so that the welding requirements among plates with different included angles are met, and the adaptability is improved;

2. the dust collecting device is arranged in the welding assembly, so that the welding area of the workpiece can be efficiently cleaned, and the welding effect is improved; the dust generated in the welding process can be absorbed and purified by the dust absorption and purification device, so that the pollution of the welding dust to the air is greatly reduced, and the environmental protection is improved;

3. in clamping device, drive the compressing band through micro motor and rotate for the flexible brush that compresses tightly the band surface brushes the piece on buffer plate surface to the left end and finally absorbs behind the dust absorption pipe, and compresses tightly the band surface and then cleans by the inside clean brush of protection cover shell, makes the clamping face clean all the time, improves the stability of centre gripping, simultaneously, also prevents to press from both sides and hinder the work piece.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a welded assembly according to the present invention;

FIG. 3 is a schematic view of the dust trapping device of the present invention;

FIG. 4 is a schematic structural view of a positioning assembly of the present invention;

FIG. 5 is a schematic view of a clamping device according to the present invention;

in the figure: 1. a frame; 2. positioning and price grouping; 3. welding the assembly; 4. a dust collection and purification device; 5. a work table; 6. rotating the disc; 7. fixing the sliding seat; 8. a clamping device; 9. a pallet; 10. a support bracket; 11. a top pressure rod; 12. a baffle; 13. adjusting a rod I; 14. a dust collection box; 15. a cylinder; 16. a protective cover shell; 17. a slide bar; 18; a compression band; 19. cleaning the brush; 20. a micro motor; 21. a buffer plate; 22. a dust collection pipe orifice; 23. a pneumatic slide rail; 24. a laser welding gun; 25. a stepping motor; 26. a sealing plate; 27. a dust collection device; 28. a second adjusting rod; 29. a dust hood; 30. a protective net; 31. a supporting base; 32. a smoke concentration detector.

Detailed Description

Referring to fig. 1, in the embodiment of the present invention, an efficient welding device based on high-power laser flight welding includes a rack 1, a positioning assembly 2, and a welding assembly 3, wherein the welding assembly 3 is slidably mounted in the middle of the top end of the rack 1, and the welding assembly 3 can slide left and right or back and forth relative to the rack 1, so as to achieve linear welding of a workpiece; a workbench 5 is arranged right below the welding assembly 3, a rotating disc 6 is rotatably arranged in the middle of the workbench 5, and the rotating disc 6 is driven to rotate by a rotating motor fixed below the rack 1; the positioning components 2 are arranged on the rotating disc 6 in a left-right symmetrical sliding manner and driven to slide by the air cylinder 15 fixed on the rotating disc; a dust collection and purification device 4 is further arranged on the left side of the upper end of the rack 1, and the dust collection and purification device 4 is communicated with the welding assembly 3 and used for cleaning a welding area of a workpiece before welding and absorbing and purifying welding smoke;

the positioning assembly 2 is provided with a clamping device 8 for clamping and stabilizing a workpiece to be welded, and the inclination angle of the workpiece to be welded can be adjusted to adapt to welding of workpieces with different welding included angles.

Referring to fig. 2, in the present embodiment, the welding assembly 3 includes a pneumatic slide rail 23, a laser welding gun 24 and a dust collecting device 25, and the laser welding gun 24 is slidably disposed on the pneumatic slide rail 24 so as to realize vertical displacement of the laser welding gun 24; a dust collecting device 25 is slidably mounted on the left side of the pneumatic slide rail 23, and the upper end of the dust collecting device 25 is driven to slide by a telescopic rod fixed on the pneumatic slide rail 23;

the top end of the pneumatic slide rail 23 is driven by the stepping motor 25 to rotate so as to realize that the pneumatic slide rail 23 rotates along the clockwise 90-degree range, that is, the laser welding gun 24 always welds along the welding direction from left to right and from the front to the back, so that the dust collecting device 27 is always positioned at the back of the welding path, the absorption of welding smoke dust is facilitated, and the absorption effect of the smoke dust is improved.

Referring to fig. 3, as a preferred embodiment, the dust collecting device 25 includes a supporting seat 31, a dust hood 29 and a second adjusting rod 28, the lower end of the supporting seat 31 is communicated with the dust hood 29 through a threaded hose, the left end of the dust hood 29 is rotatably connected with the telescopic end of the second adjusting rod 28, the tail end of the second adjusting rod 28 is rotatably disposed on the supporting seat 31, and the dust hood 29 can be driven to twist through the telescopic of the second adjusting rod 28, so as to adjust the inclination angle of the dust hood 29 and improve the collecting effect of welding dust;

the inside of the supporting seat 31 is a cavity structure, and the top of the supporting seat is communicated with the dust collection and purification device 4 through a hose;

smoke concentration detector 32 is installed on the lower extreme right side of suction hood 29, and in welding process, by smoke concentration detector 32 timely detection surrounding smoke and dust concentration to in good time adjustment suction hood 29's inclination makes suction hood 29 towards the great direction of smoke and dust concentration all the time, improves the absorption effect to the smoke and dust, thereby has improved the feature of environmental protection.

In this embodiment, the dust hood 29 includes a guide plate 12, a protective net 30 and a sealing plate 26, the guide plate 12 is fixedly disposed in the middle of the dust hood 29, and the protective net 30 is disposed between the bottom end side surface of the guide plate 12 and the inner wall of the dust hood 29;

the through-hole has been seted up at the bottom middle part of guide plate 12, just, the side upper end circumference of guide plate 12 rotates and is provided with a plurality of closing plates 26, just, every the lower extreme of closing plate 26 all rotates with the flexible section of rotating the telescopic link of installing on suction hood 29 and is connected, a plurality ofly and closing plate 26 assorted vent has been seted up to guide plate 12 side circumference, wherein, when treating welding workpiece surface and cleaning, guide plate 12 is in airtight state under the effect of closing plate 26 to increase the negative pressure of guide plate 12 bottom, reinforcing the clastic absorbing capacity of dust, thereby improve the clean effect to workpiece surface.

Referring to fig. 4, in the present embodiment, the positioning assembly 2 includes a clamping device 8, a fixed sliding seat 7 and a dust box 14, a support bracket 10 is slidably disposed at the right end of the fixed sliding seat 7 and is driven by a telescopic rod fixed at the lower end of the fixed sliding seat to slide, a support plate 9 is rotatably disposed at the middle of the upper end of the support bracket 10, the left side of the lower end surface of the support plate 9 is rotatably connected with a telescopic end of the telescopic rod rotatably mounted on the support bracket 10, and the inclination angle of the clamping device 8 can be controllably adjusted by the telescopic rod to meet the welding requirements of different included angles between two workpieces; the clamping device 8 is fixedly arranged on the supporting plate 9; the dust box 14 is fixedly arranged at the left side of the fixed sliding seat 7, and the upper end of the dust box is communicated with the clamping device 8 through a dust collecting pipe, wherein the dust box 14 absorbs dust and debris in the clamping device 8, so that the self-cleaning effect of the clamping device 8 is ensured.

Referring to fig. 5, in the present embodiment, the clamping device 8 includes a protective casing 16, a sliding rod 17 and a pressing belt 18, two protective casing 16 are slidably sleeved at upper and lower ends of the sliding rod 17, a buffer plate 21 is slidably disposed in a middle portion of the lower one of the two protective casing 16, and a bottom end of the buffer plate 21 is fixedly connected to a bottom wall of the protective casing 16 through a plurality of springs i; the two protection casings 16 are provided with pressing belts 18 on one lower end face located above and corresponding to the buffer plate 21, the right ends of the pressing belts 18 are driven by micro motors 20 fixed outside the protection casings 16 to rotate clockwise, and the clockwise rotating pressing belts 18 clean the buffer plate 21, so that dust and debris are cleaned to the left end of the buffer plate 21 and are finally absorbed by the dust suction pipe orifice 22.

A second spring is sleeved on the part, located between the two protective sleeves 16, of the sliding rod 17;

the middle part of the lower end face of the two protective casings 16 is driven to slide by a top pressure rod 11 fixed on the supporting plate 9.

As a preferred embodiment, a dust suction nozzle 22 is arranged on the left side of one lower end surface of the two protective casings 16, and the dust suction nozzle 22 is of a telescopic structure so as to be suitable for stably clamping workpieces with different thicknesses; the dust suction pipe opening 22 can be attached to the left end of the buffer plate 21 and can absorb dust and debris on the left end of the upper end surface of the buffer plate.

In this embodiment, the upper half surface of the pressing belt 18 is provided with flexible bristles for cleaning the surface of the buffer plate 21.

In this embodiment, a plurality of cleaning brushes 19 are rotatably disposed on an upper top wall of the two protective casings 16, and an area occupied by the plurality of cleaning brushes 19 matches with an upper half area of the pressing belt 18, so that the cleaning brushes 19 can effectively clean the clamping surface of the pressing belt 18 and can also clean the flexible bristles on the surface of the pressing belt 18, thereby ensuring the cleanliness of the cleaning brushes 19 and the flexible bristles, and improving the self-cleaning effect of the clamping device 8.

Specifically, firstly, two plates to be welded are sequentially placed between the protective casing shells, the jacking rod is controlled to clamp and fix the plates, and then the telescopic rod at the left end of the supporting plate is controlled to adjust the inclination angle of the clamping device until the included angle between the two workpieces meets the welding requirement; then, starting the air cylinder to enable the positioning assemblies to be close to each other, enabling parts to be welded of the two plates to be in contact and to be in the optimal position, and then controlling the dust collecting device to perform dust collection and cleaning on the area to be welded, wherein in the process, a sealing plate in the dust collection cover is in a closed state to increase the negative pressure at the bottom end of the guide plate and improve the cleaning effect; then, automatically adjusting the position of the welding assembly to enable the laser welding gun to be positioned right above a welding area, starting to weld the workpiece, detecting the surrounding smoke concentration timely by a smoke concentration detector on the dust hood in the welding process, and continuously adjusting the height and the deflection angle of the dust hood to ensure the optimal absorption effect; after one-time welding is finished, all the components return to the original positions, the welding workpiece is taken down, the top pressure rod drives the protective casing at the bottom to move upwards again, then the pressing belt starts to rotate, the surface of the buffer plate is cleaned through the flexible hairbrush on the surface of the pressing belt, and dust debris is cleaned to the left end and absorbed by the dust suction pipe opening; the surface of the compression belt is cleaned by a cleaning brush in the protective casing; after cleaning, the next welding operation can be carried out.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The high-efficiency welding equipment based on the high-power laser flight welding comprises a rack (1), a positioning assembly (2) and a welding assembly (3), wherein the welding assembly (3) is arranged in the middle of the top end of the rack (1) in a sliding mode, and the welding assembly (3) can slide left and right or front and back relative to the rack (1) so as to realize linear welding of workpieces; a workbench (5) is arranged right below the welding assembly (3), a rotating disc (6) is rotatably arranged in the middle of the workbench (5), and the rotating disc (6) is driven to rotate by a rotating motor fixed below the rack (1); the positioning components (2) are arranged on the rotating disc (6) in a bilaterally symmetrical sliding manner and driven to slide by the air cylinder (15) fixed on the rotating disc; the method is characterized in that: a dust collection and purification device (4) is further arranged on the left side of the upper end of the rack (1), and the dust collection and purification device (4) is communicated with the welding assembly (3) and is used for cleaning a welding area of a workpiece before welding and absorbing and purifying welding smoke;

the positioning assembly (2) is internally provided with a clamping device (8) which is used for clamping and stabilizing a workpiece to be welded, and the inclination angle of the clamping device can be adjusted to adapt to welding of workpieces with different welding included angles;

the welding assembly (3) comprises a pneumatic slide rail (23), a laser welding gun (24) and a dust collecting device (27), wherein the laser welding gun (24) is arranged on the pneumatic slide rail (23) in a sliding mode so as to realize the vertical displacement of the laser welding gun (24); a dust collecting device (27) is slidably mounted on the left side of the pneumatic sliding rail (23), and the upper end of the dust collecting device (27) is driven to slide by a telescopic rod fixed on the pneumatic sliding rail (23);

the top end of the pneumatic sliding rail (23) is driven by a stepping motor (25) to rotate so as to realize that the pneumatic sliding rail (23) rotates within 90 degrees along the clockwise direction;

the dust collecting device (27) comprises a supporting seat (31), a dust hood (29) and a second adjusting rod (28), the lower end of the supporting seat (31) is communicated with the dust hood (29) through a threaded hose, the left end of the dust hood (29) is rotatably connected with the telescopic end of the second adjusting rod (28), and the tail end of the second adjusting rod (28) is rotatably arranged on the supporting seat (31);

the inside of the supporting seat (31) is of a cavity structure, and the top of the supporting seat is communicated with the dust collection and purification device (4) through a hose;

a smoke concentration detector (32) is arranged on the right side of the lower end of the dust hood (29);

the dust hood (29) comprises a guide plate (12), a protective net (30) and a sealing plate (26), the guide plate (12) is fixedly arranged in the middle of the dust hood (29), and the protective net (30) is arranged between the side surface of the bottom end of the guide plate and the inner wall of the dust hood (29);

the through-hole has been seted up at the bottom middle part of guide plate (12), just, the side upper end circumference of guide plate (12) rotates and is provided with a plurality of closing plates (26), just, every the lower extreme of closing plate (26) all rotates with the flexible section of rotating the telescopic link of installing on suction hood (29) and is connected, a plurality ofly seted up with closing plate (26) assorted vent to guide plate (12) side circumference.

2. The high-efficiency welding equipment based on the high-power laser flight welding is characterized in that: the positioning assembly (2) comprises a clamping device (8), a fixed sliding seat (7) and a dust collection box (14), wherein a support bracket (10) is arranged at the right end of the fixed sliding seat (7) in a sliding manner and driven to slide by a telescopic rod fixed at the lower end of the fixed sliding seat, a supporting plate (9) is rotatably arranged in the middle of the upper end of the support bracket (10), the left side of the lower end face of the supporting plate (9) is rotatably connected with the telescopic end of the telescopic rod rotatably arranged on the support bracket (10), and the clamping device (8) is fixedly arranged on the supporting plate (9); the dust collection box (14) is fixedly arranged at the left side of the fixed sliding seat (7), and the upper end of the dust collection box is communicated with the clamping device (8) through a dust collection pipe.

3. The high-efficiency welding equipment based on the high-power laser flight welding is characterized in that: the clamping device (8) comprises a protective casing (16), a sliding rod (17) and a pressing belt (18), wherein the upper end and the lower end of the sliding rod (17) are slidably sleeved with the two protective casing (16), the middle of one of the two protective casing (16) which is positioned below is provided with a buffer plate (21) in a sliding manner, and the bottom end of the buffer plate (21) is fixedly connected with the bottom wall of the protective casing (16) through a plurality of springs I; a pressing belt (18) is arranged in a region corresponding to the buffer plate (21) on one lower end face positioned above the two protection casings (16), and the right end of the pressing belt (18) is driven by a micro motor (20) fixed outside the protection casings (16) to rotate clockwise

A second spring is sleeved on the part, located between the two protective sleeves (16), of the sliding rod (17);

the middle part of one lower end face of the two protective casings (16) at the lower part is driven to slide by a top pressure rod (11) fixed on the supporting plate (9).

4. The high-efficiency welding equipment based on high-power laser flight welding as claimed in claim 3, characterized in that: a dust suction pipe orifice (22) is arranged on the left side of one lower end face of the two protective casing bodies (16) above, and the dust suction pipe orifice (22) is of a telescopic structure so as to be suitable for stably clamping workpieces with different thicknesses; the dust suction pipe orifice (22) can be attached to the left end of the buffer plate (21) and absorbs dust and debris on the left end of the upper end surface of the dust suction pipe orifice.

5. The high-efficiency welding equipment based on high-power laser flight welding is characterized by comprising the following components in parts by weight: the upper half surface of the pressing belt (18) is provided with flexible bristles for cleaning the surface of the buffer plate (21).

6. The high-efficiency welding equipment based on high-power laser flight welding is characterized by comprising the following components in parts by weight: a plurality of cleaning brushes (19) are rotatably arranged on one top wall of the two protective sleeves (16), and the area occupied by the plurality of cleaning brushes (19) is matched with the area of the upper half part of the pressing belt (18).