Smoke exhaust structure and welding machine

Abstract

The utility model discloses a smoke exhaust structure and a welding machine, and relates to the technical field of laser welding equipment, the smoke exhaust structure comprises a fixed support, a smoke exhaust assembly and a processing area assembly, the smoke exhaust assembly comprises a first smoke exhaust pipe and a suction pump which are connected with each other, and the smoke exhaust pipe is connected with the fixed support. The machining area assembly comprises a sliding part, a second smoke exhaust pipe and a workpiece positioning mechanism, the sliding part is slidably connected with the fixing support, the second smoke exhaust pipe and the workpiece positioning mechanism are arranged on the sliding part, and the second smoke exhaust pipe can be connected with the first smoke exhaust pipe when the sliding part slides. Before welding, the sliding part can be firstly slid to the feeding position to obtain a loose feeding space, workers can conveniently and rapidly feed, then the sliding part is slid to the welding position, at the moment, the first smoke exhaust pipe is connected with the second smoke exhaust pipe, and smoke generated by welding can be recycled under the action of the suction pump to prevent the smoke from polluting air. The smoke exhaust pipe and the welding head are not arranged together, and the load of a moving part is small.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment, in particular to a smoke exhaust structure and a welding machine. Background Art

[0002] Laser welding uses high-energy laser pulses to locally heat materials in a small area. The energy of laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for welding thin-walled materials and precision parts, and can achieve spot welding, butt welding, lap welding, seal welding, etc. It has a high depth-to-width ratio, a small weld width, a small heat-affected zone, small deformation, a fast welding speed, a flat and beautiful weld, and requires no treatment or only simple treatment after welding. The weld quality is high, there are no pores, it can be precisely controlled, the focused light spot is small, the positioning accuracy is high, and it is easy to achieve automation. In addition, dust is generated during the welding process. In order to avoid dust pollution to the environment, it is necessary to treat the dust.

[0003] The prior art with the publication number CN216938946U discloses a smoke exhaust device for laser welding, including an installation box and an installation plate. A laser welding gun is arranged at the bottom of the installation plate. Fixed blocks are fixedly connected to both sides of the laser welding gun. An air pump is arranged on one side of the top of the installation box. An air extraction hose is fixedly installed at the input end of the air pump. One end of the air extraction hose penetrates through the installation plate, and one end of a fixed block is fixedly connected to one side of the air extraction hose. A water tank is arranged on the other side of the top of the installation box, and a cylinder is arranged on one side of the water tank. The beneficial effect of the utility model is that by turning on the air pump, the air extraction hose can be used to absorb the dust generated by welding. At the same time, by turning on the cylinder, the water in the water tank is pushed by the push plate, so that the water in the water tank breaks through the valve membrane by extrusion and is sprayed onto the surface of the workpiece through the nozzle to cool the workpiece, realizing the functions of dust collection and water cooling during the processing process.

[0004] However, this prior smoke exhaust device still has defects. Since the workpiece needs to be fixed before welding, the workpiece placement area of the smoke exhaust device cannot move, and the operation space is narrow. When the size of the welded workpiece is large, it is inconvenient to install and fix the workpiece. In addition, the smoke exhaust pipe and the welding head are arranged together, and the positions of the smoke exhaust pipe and the welding head are adjusted by moving components, increasing the load of the moving components. Summary of the Utility Model

[0005] The object of the present utility model is to overcome the above technical deficiencies, and provide an exhaust structure and a welding machine, so as to solve the technical problems that in the prior art, the workpiece placement area of the exhaust device cannot move, the operation space is narrow, and it is inconvenient to install and fix the workpiece when the size of the welded workpiece is large. In addition, the exhaust pipe and the welding head are arranged together, and the positions of the exhaust pipe and the welding head are adjusted by a moving component, which increases the load of the moving component.

[0006] To achieve the above technical object, the present utility model adopts the following technical solutions:

[0007] In a first aspect, the present utility model provides an exhaust structure, including:

[0008] A fixed bracket;

[0009] An exhaust assembly, including a first exhaust pipe and a suction pump connected to each other, the exhaust pipe being connected to the fixed bracket; and

[0010] A processing area assembly, including a sliding member, a second exhaust pipe and a workpiece positioning mechanism, the sliding member being slidably connected to the fixed bracket, the second exhaust pipe and the workpiece positioning mechanism both being arranged on the sliding member, and the second exhaust pipe being capable of connecting the first exhaust pipe when the sliding member slides to a welding position.

[0011] In some embodiments, the second exhaust pipe penetrates through the sliding member along the thickness direction of the sliding member, the inlet of the second exhaust pipe is arranged close to the workpiece positioning mechanism, and the outlet of the second exhaust pipe can be connected to the first exhaust pipe when the sliding member slides.

[0012] In some embodiments, the workpiece positioning mechanism includes a plurality of positioning members, the plurality of positioning members are arranged in a circle, the positioning members are used for positioning the workpiece to be welded, and the second exhaust pipe is located inside the plurality of positioning members.

[0013] In some embodiments, the processing area assembly further includes a suction member, the suction member is located inside the plurality of positioning members, the suction member includes a fixed body and a plurality of suction pipes, the fixed body is connected to the sliding member, and the plurality of suction pipes are arranged around the circumference of the fixed body and are all communicated with the second exhaust pipe.

[0014] In some embodiments, the positioning member includes a positioning table and a positioning slide plate, the positioning table is provided with a weld seam, the positioning slide plate includes a plate body and a convex strip, the convex strip is connected to the plate body and forms a positioning groove for positioning the workpiece between the plate body and the convex strip, and the convex strip is located above the weld seam.

[0015] In some embodiments, the positioning slides are arranged on both opposite sides of the positioning table, and the convex strips of the two positioning slides are located on the same straight line.

[0016] In some embodiments, the smoke exhaust structure further includes a driving motor disposed on the sliding member. The fixed bracket is provided with a slide rail and a rack. The sliding member is slidably connected to the slide rail. The driving gear of the driving motor meshes with the rack. When the driving motor drives the driving gear to rotate, the sliding member can be driven to reciprocally slide along the slide rail by meshing with the rack.

[0017] In some embodiments, the smoke exhaust assembly further includes a lifting cylinder and a lifting pipe. The lifting pipe is slidably connected to the first smoke exhaust pipe and communicates with the first smoke exhaust pipe. The lifting cylinder is connected to the lifting pipe and is used to drive the lifting pipe to lift and lower, so that the lifting pipe communicates with the second smoke exhaust pipe.

[0018] In some embodiments, rubber rings are provided at both the inlet of the lifting pipe and the outlet of the second smoke exhaust pipe.

[0019] In a second aspect, the present utility model further provides a welding machine, which includes a welding assembly and the above-mentioned smoke exhaust structure. The welding assembly includes a sliding bracket and a welding head connected to each other. The sliding bracket is slidably disposed on the fixed bracket of the smoke exhaust structure.

[0020] Compared with the prior art, the sliding member included in the smoke exhaust structure provided by the present utility model can be used to place the workpiece to be welded, and the workpiece positioning mechanism can position the workpiece so that the workpiece can be stably welded. Before welding, the sliding member can be first slid to the loading position to obtain a loose loading space, which is convenient for the staff to quickly load the workpiece. After the workpiece is fixed by the workpiece positioning mechanism, the sliding member is then slid to the welding position to weld the workpiece. At this time, the first smoke exhaust pipe is connected to the second smoke exhaust pipe, so that the smoke and dust generated by welding can be discharged and recycled in sequence through the second smoke exhaust pipe and the first smoke exhaust pipe under the action of the suction pump, so as to avoid polluting the air with smoke and dust. In addition, the smoke exhaust pipe and the welding head of the present utility model are not arranged together, the load of the moving parts is small, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the sliding member of the smoke exhaust structure provided by the embodiment of the present utility model when it is in the loading position;

[0022] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0023] Figure 3 is a schematic structural diagram of the sliding member of the smoke exhaust structure provided by the embodiment of the present utility model when it is in the welding position;

[0024] Figure 4It is a schematic structural diagram of a processing area component provided by an embodiment of the present utility model;

[0025] Figure 5 It is a schematic structural diagram of a positioning slide plate provided by an embodiment of the present utility model;

[0026] Figure 6 It is a schematic structural diagram of a positioning member provided by an embodiment of the present utility model;

[0027] Figure 7 It is a schematic structural diagram of a welding machine provided by an embodiment of the present utility model. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] In order to solve the technical problems in the prior art that the workpiece placement area of the smoke exhaust device cannot move, the operation space is narrow, and it is inconvenient to install and fix the workpiece when the size of the welded workpiece is large. In addition, the smoke exhaust pipe and the welding head are arranged together, and the positions of the smoke exhaust pipe and the welding head are adjusted by moving components, which increases the load of the moving components. The present utility model provides a smoke exhaust structure that can realize partitioned operations for workpiece loading and welding, so as to facilitate the staff to obtain sufficient loading space in the loading area and improve the loading efficiency. In addition, the smoke exhaust pipe and the welding head are not arranged together, the load of the moving components is small, and the service life is long.

[0030] It should be noted that the smoke exhaust structure described in the present utility model is used for but not limited to welding machines, etc. For the convenience of description, in the present utility model, only the case where the smoke exhaust structure is applied to a welding machine is taken as an example for description, and the principle of applying the smoke exhaust structure to other types of equipment is essentially the same as that of applying it to a welding machine, and will not be elaborated here one by one.

[0031] Please refer to Figure 1 , Figure 1The figure is a schematic structural diagram of a smoke exhaust structure in an embodiment of the present utility model. The smoke exhaust structure 100 includes a fixed bracket 1, a smoke exhaust component, and a processing area component 3. The smoke exhaust component includes a first smoke exhaust pipe 21 and a suction pump (not shown in the figure) connected to each other, and the smoke exhaust pipe 21 is connected to the fixed bracket 1. The processing area component 3 includes a sliding member 31, a second smoke exhaust pipe 32, and a workpiece positioning mechanism 33. The sliding member 31 is slidably connected to the fixed bracket 1, and both the second smoke exhaust pipe 32 and the workpiece positioning mechanism 33 are provided on the sliding member 31. The second smoke exhaust pipe 32 can be connected to the first smoke exhaust pipe 21 or separated from the first smoke exhaust pipe 21 when the sliding member 31 slides. When the sliding member 31 slides to the loading position, the first smoke exhaust pipe 21 is separated from the second smoke exhaust pipe 32. At this time, only loading is required, no welding is needed, and no smoke is generated. Therefore, even if the first smoke exhaust pipe 21 and the second smoke exhaust pipe 32 are separated and no smoke exhaust is carried out, there will be no environmental pollution; when the sliding member 31 slides to the welding position, the first smoke exhaust pipe 21 is connected to the second smoke exhaust pipe 32. At this time, the dust generated during the welding of the workpiece can, under the action of the suction pump, pass through the second smoke exhaust pipe 32 and the first smoke exhaust pipe 21 in sequence and be recycled. Therefore, in this embodiment, there is no need to additionally connect a pipe between the first smoke exhaust pipe 21 and the second smoke exhaust pipe 32, which saves the cost of installing the pipe and also eliminates the trouble of installing the pipe.

[0032] The space in the loading area of this embodiment is significantly larger than that in the welding area. When loading, the sliding member 31 can be slid to the loading position, and it is more convenient for the staff to load in the spacious space, and the loading efficiency is high.

[0033] In one of the embodiments, please refer to Figure 3 and Figure 4 , the second smoke exhaust pipe 32 penetrates through the sliding member 31 along the thickness direction of the sliding member 31. The inlet of the second smoke exhaust pipe 32 is arranged close to the workpiece positioning mechanism 33, and the outlet of the second smoke exhaust pipe 32 can be connected to the first smoke exhaust pipe 21 when the sliding member 31 slides. In this embodiment, the second smoke exhaust pipe 32 is arranged to penetrate through the sliding member 31, which is beneficial to reducing the occupied space of the pipe, and it is convenient for the second smoke exhaust pipe 32 to be connected to the first smoke exhaust pipe 21. When the sliding member 31 is located at the welding position, the first smoke exhaust pipe 21 is exactly located directly below the second smoke exhaust pipe 32 and is just connected to the second smoke exhaust pipe 32.

[0034] In one of the embodiments, please refer to Figure 4, the workpiece positioning mechanism 33 includes a plurality of positioning members 331. The plurality of positioning members 331 are arranged in a circle. The positioning members 331 are used to position the workpiece 4 to be welded. The second exhaust pipe 32 is located inside the plurality of positioning members 331. In this embodiment, each positioning member 331 can simultaneously position two workpieces to be welded, so that the two workpieces can be stably welded. The plurality of positioning members 331 are arranged in a circle to position a plurality of workpieces. After the plurality of workpieces are welded, an annular component can be formed. Therefore, the plurality of positioning members 331 can selectively set the installation positions according to the shape of the component to be processed. In addition, the second exhaust pipe 32 is located inside the plurality of positioning members 331, so that the second exhaust pipe 32 can absorb the soot generated in all directions.

[0035] In one embodiment, please refer to Figure 3 and Figure 4 , the processing area assembly 3 further includes a suction member 34. The suction member 34 is located inside the plurality of positioning members 331. The suction member 34 includes a fixing body 341 and a plurality of suction pipes 342. The fixing body 341 is connected to the sliding member 31. The plurality of suction pipes 342 are arranged around the circumferential side of the fixing body 341 and are all communicated with the second exhaust pipe 32. In this embodiment, the fixing body 341 is generally in the shape of a cuboid, and its bottom is connected to the sliding member 31 by screws. The plurality of suction pipes 342 are arranged circumferentially around the side of the fixing body 341. The plurality of suction pipes 342 are all communicated with the inside of the fixing body 341. The inside of the fixing body 341 is communicated with the second exhaust pipe 32. The plurality of suction pipes 342 can suck the soot generated during welding from multiple directions, and the dust collection effect is good.

[0036] In one embodiment, please refer to Figure 5 and Figure 6 , the positioning member 331 includes a positioning table 332 and a positioning slide plate 333. The positioning table 332 is provided with a weld seam 338. The weld seam 338 is used to fill the welding wire so that the welding wire connects the two workpieces after welding. The positioning slide plate 333 includes a plate body 334 and a rib 335. The rib 335 connects the plate body 334 and forms a positioning groove for positioning the workpiece between the rib 335 and the plate body 334. The rib 335 is located above the weld seam 338. In this embodiment, the rib 335 and the plate body 334 are connected to form a T-shaped component. The rib 335 and the plate body 334 form two positioning grooves on both sides of the rib 335, which can be used to position two workpieces. In addition, the positioning slide plate 333 of this embodiment is provided with a sliding block 336. The sliding block 336 is connected with a sliding cylinder 337. When the sliding cylinder 337 works, it can drive the sliding block 336 to slide back and forth to drive the positioning slide plate 333 to extend into the weld seam or retract from the weld seam. When the welding of the workpiece is completed, the positioning slide plate 333 can be retracted, and then the processed workpiece can be taken off.

[0037] In one embodiment, please refer to Figure 6 , positioning slides 333 are provided on both opposite sides of the positioning table 332. The ridges 335 of the two positioning slides 333 are located on the same straight line, so that after the edges of the two workpieces abut against the ridges 335, they can be in a parallel state. When the welding wire fills the weld seam 338, it can also be evenly placed on the two workpieces, and the two workpieces can maintain good connection strength after welding.

[0038] In one embodiment, please refer to Figure 1 and Figure 4 , the smoke exhaust structure 100 further includes a driving motor 35 provided on the sliding member 31. The fixed bracket 1 is provided with a slide rail 36 and a rack 37. The sliding member 31 is slidably connected to the slide rail 36. The driving gear 351 of the driving motor 35 meshes with the rack 37. When the driving motor 35 drives the driving gear 351 to rotate, it can drive the sliding member 31 to reciprocate along the slide rail 36 by meshing with the rack 37. In this embodiment, when the driving motor 35 drives the sliding member 31 to slide, the driving motor 35 will also slide together with the sliding member 31. Compared with the conventional embodiment in which the sliding member 31 is driven to slide by a lead screw, this embodiment can effectively reduce the occupied length space.

[0039] In one embodiment, please refer to Figure 2 , the smoke exhaust assembly further includes a lifting cylinder 22 and a lifting pipe 23. The lifting pipe 23 is slidably connected to the first smoke exhaust pipe 21 and communicates with the first smoke exhaust pipe 21. The lifting cylinder 22 is connected to the lifting pipe 23 and is used to drive the lifting pipe 23 to lift, so that the lifting pipe 23 communicates with the second smoke exhaust pipe 32. In this embodiment, when the sliding member 31 slides to the welding position, the lifting cylinder 22 can be controlled to drive the lifting pipe 23 to rise, so that the lifting pipe 23 abuts against the second smoke exhaust pipe 32 on the sliding member 31. Under the action of the suction pump, the smoke generated by welding on the sliding member 31 can sequentially pass through the suction member 34, the second smoke exhaust pipe 32, the lifting pipe 23 and the first smoke exhaust pipe 21 to recover the smoke.

[0040] In one embodiment, rubber rings (not shown in the figure) are provided at both the inlet of the lifting pipe 23 and the outlet of the second smoke exhaust pipe 32. In this embodiment, when the lifting pipe 23 rises, the two rubber rings can abut against each other to increase the sealing performance between the lifting pipe 23 and the second smoke exhaust pipe 32, so that the smoke can be fully recovered.

[0041] In a second aspect, please refer to Figure 7, the present utility model also provides a welding machine 200, which includes a welding assembly 5 and the above-mentioned smoke exhaust structure 100. The welding assembly 5 includes a sliding bracket 51 and a welding head 52 that are connected to each other. The sliding bracket 51 is slidably disposed on the fixed bracket 1 of the smoke exhaust structure 100. In this embodiment, tracks 6 are provided on both sides of the fixed bracket 1. The two sides of the sliding bracket 51 are slidably connected to the two tracks 6. The sliding bracket 51 is driven by a corresponding motor to reciprocally slide, so as to adjust the position of the welding head 52.

[0042] The specific implementation manners of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A smoke exhaust structure, characterized in that: include: Fixed bracket; A smoke exhaust assembly, comprising a first smoke exhaust pipe and a suction pump connected to each other, wherein the smoke exhaust pipe is connected to the fixed bracket; and The processing area component includes a sliding member, a second smoke exhaust pipe and a workpiece positioning mechanism. The sliding member is slidably connected to the fixed bracket. The second smoke exhaust pipe and the workpiece positioning mechanism are both arranged on the sliding member. The second smoke exhaust pipe can be connected to the first smoke exhaust pipe when the sliding member slides to the welding position.

2. The smoke exhaust structure according to claim 1, characterized in that: The second smoke exhaust pipe penetrates the sliding member along the thickness direction of the sliding member, the inlet of the second smoke exhaust pipe is arranged close to the workpiece positioning mechanism, and the outlet of the second smoke exhaust pipe can be connected to the first smoke exhaust pipe when the sliding member slides.

3. The smoke exhaust structure according to claim 1, characterized in that: The workpiece positioning mechanism comprises a plurality of positioning members, which are arranged in a circle and are used to position the workpiece to be welded. The second smoke exhaust pipe is located on the inner side of the plurality of positioning members.

4. The smoke exhaust structure according to claim 3, characterized in that: The processing area assembly also includes a suction piece, which is located on the inner side of the plurality of positioning pieces. The suction piece includes a fixed body and a plurality of suction pipes, the fixed body is connected to the sliding piece, and the plurality of suction pipes are arranged around the circumference of the fixed body and are all connected to the second smoke exhaust pipe.

5. The smoke exhaust structure according to claim 3, characterized in that: The positioning member includes a positioning platform and a positioning slide plate, the positioning platform is provided with a weld, the positioning slide plate includes a plate body and a convex strip, the convex strip is connected to the plate body and forms a positioning groove for positioning the workpiece with the plate body, and the convex strip is located above the weld.

6. The smoke exhaust structure according to claim 5, characterized in that: The positioning slide plates are arranged on opposite sides of the positioning platform, and the convex strips of the two positioning slide plates are located on the same straight line.

7. The smoke exhaust structure according to claim 1, characterized in that: The smoke exhaust structure also includes a driving motor arranged on the sliding member, the fixed bracket is provided with a slide rail and a rack, the sliding member is slidably connected to the slide rail, and the driving gear of the driving motor engages with the rack. When the driving motor drives the driving gear to rotate, it can drive the sliding member to slide back and forth along the slide rail by engaging with the rack.

8. The smoke exhaust structure according to claim 1, characterized in that: The smoke exhaust assembly also includes a lifting cylinder and a lifting pipe, the lifting pipe is slidably connected to the first smoke exhaust pipe and communicated with the first smoke exhaust pipe, the lifting cylinder is connected to the lifting pipe and is used to drive the lifting pipe to rise and fall so that the lifting pipe is connected to the second smoke exhaust pipe.

9. The smoke exhaust structure according to claim 8, characterized in that: The inlet of the lifting pipe and the outlet of the second smoke exhaust pipe are both provided with rubber rings.

10. A welding machine, characterized in that: It comprises a welding assembly and a smoke exhaust structure as claimed in any one of claims 1 to 9, wherein the welding assembly comprises a sliding bracket and a welding head connected to each other, and the sliding bracket is slidably arranged on a fixed bracket of the smoke exhaust structure.

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