Collecting device and laser processing equipment

Abstract

The utility model discloses a collecting device and laser processing equipment, the collecting device comprises an isolation piece, a material suction piece, a material receiving piece and a negative pressure generator, the isolation piece is hollow, the upper end and the lower end of the isolation piece are provided with via holes for laser to pass through, the lower end of the isolation piece can cover a laser processing area, and the area is isolated from the outside. The material suction part is arranged on one side of the isolation part, a material suction part and a material falling opening are formed in the lower end of the material suction part, and the material receiving part is arranged below the material suction part and is in butt joint with the material falling opening; the negative pressure generator communicates with the suction opening in the isolation piece and the suction opening of the material suction piece and is used for constructing negative pressure in the isolation piece and the material suction part. Therefore, smoke generated by cutting is sucked away by the negative pressure generator and does not overflow. And the material suction part sucks metal particles generated by cutting, and the metal particles fall into the material receiving part under the action of gravity to complete collection of waste materials.

Description

Technical Field

[0001] The present application relates to the field of laser processing, and in particular to a collection device and laser processing equipment. Background Art

[0002] In laser processing, when materials are exposed to high-power laser beams, smoke and dust will form at the cutting site, which will cause dust pollution for some products with higher cleanliness. Especially when processing some precious metals, it is necessary to centrally treat the smoke and dust generated during the processing, and also collect the waste generated during the processing. The waste is generally metal particles that are splashed and recondensed. In the related technology, there is generally a lack of such waste collection devices. Utility Model Content

[0003] The present application proposes a collection device and a laser processing device, which can be used to collect waste generated during processing by the laser processing device.

[0004] The present application proposes a collecting device, comprising:

[0005] The isolator is hollow and has holes at the upper and lower ends for the laser to pass through, and the isolator is also provided with an air vent;

[0006] A suction member is arranged on one side of the isolation member, the lower end of the suction member is configured with a suction portion and a material drop port, and the upper end of the suction member is provided with an air suction port;

[0007] A material receiving member, disposed below the material suction member and connected to the material drop opening;

[0008] A negative pressure generator is connected to the air suction port and the gas suction port, and is used to build negative pressure in the isolation member and the suction part.

[0009] In some embodiments, the collecting device further comprises an air pipe disposed in the isolating member, the curvature of the air pipe is adjustable, and the air pipe is used to communicate with a protective gas source.

[0010] In some embodiments, the collecting device further comprises an air knife disposed on one side of the material suction member, and the blowing direction of the air knife is disposed obliquely downward and toward a side away from the isolation member.

[0011] In some embodiments, the collecting device further comprises a filter disposed at the air suction port.

[0012] In some embodiments, the suction member is further provided with an observation window, the air outlet is further provided with a baffle, and the baffle is further provided with an air hole connected with the air outlet.

[0013] In some embodiments, the collecting device further includes a connecting assembly for connecting the material drop opening and the material receiving piece.

[0014] In some embodiments, the side wall of the isolation member is further provided with a rotatably connected door body, and the door body is further provided with ventilation holes.

[0015] The present application also proposes a laser processing device, comprising the above-mentioned collecting device.

[0016] In some embodiments, the laser processing equipment further comprises:

[0017] Laser head;

[0018] Laser transmitter;

[0019] A protective cover, connecting the laser head and the laser emitter, and used for allowing the laser beam to pass through the inside;

[0020] The guide member is arranged along the length direction of the protective cover and is slidably connected with the protective cover.

[0021] In some embodiments, the laser processing equipment further includes a visual camera disposed on a side of the isolation member away from the material suction member, and a light source disposed below the visual camera.

[0022] The collecting device in the present application includes an isolating member, a material suction member, a material receiving member and a negative pressure generator. The isolating member is hollow and has holes at the upper and lower ends for the laser to pass through. The lower end of the isolating member can be covered in the laser processing area to isolate the area from the outside. The material suction member is arranged on one side of the isolating member, and a material suction part and a material drop opening are constructed at its lower end. The material receiving member is arranged below the material suction member and docked with the material drop opening. The negative pressure generator is connected to the exhaust port on the isolating member and the exhaust port of the material suction member, and is used to construct a negative pressure in the isolating member and the material suction part. The smoke and dust generated by the cutting is sucked away by the negative pressure generator and will not overflow. The material suction part absorbs the metal particles generated by the cutting, and falls into the material receiving member under the action of gravity to complete the collection of waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a laser processing device in one embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the collecting device in the embodiment;

[0025] Figure 3 for Figure 2 Cross-sectional view of a collection device in an embodiment.

[0026] Description of labels:

[0027] 10. Base; 11. Y-axis drive module; 12. X-axis drive module; 13. Z-axis drive module; 21. First refractive cavity; 22. First reflective seat; 23. Second refractive cavity; 24. Second reflective seat; 25. Vibrating mirror; 31. Isolation piece; 311. Air exhaust port; 32. Suction piece; 321. Suction part; 322. Dropping port; 323. Observation window; 324. Air exhaust port; 325. Filter; 33. Wind knife; 34. Door; 35. Air pipe; 36. Material receiving piece; 37. Baffle; 38. Connecting assembly; 40. Second protective cover; 41. Light source; 42. Visual camera.

[0028] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the scheme in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments in the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0031] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0032] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] This application proposes a collection device, referring to Figures 1 to 3The collecting device includes: an isolating member 31, which is hollow and has holes at the upper and lower ends for laser to pass through, and an exhaust port 311 is also provided on the isolating member 31; a suction member 32, which is arranged on one side of the isolating member 31, and the lower end of the suction member 32 is constructed with a suction part 321 and a material drop port 322, and the upper end of the suction member 32 is provided with an exhaust port 324; a material receiving member 36, which is arranged below the suction member 32 and docked with the material drop port 322; a negative pressure generator (not shown in the figure), which is connected to the exhaust port 311 and the exhaust port 324, and is used to construct negative pressure in the isolating member 31 and the suction part 321.

[0034] In this embodiment, the collection device can be arranged below the laser head of the laser processing equipment. Specifically, the through hole can be connected to the laser head, and the through hole at the lower end of the protective cover can be connected to the processing area, so that the processing area is isolated from the outside, and the smoke generated by cutting is sucked away by the negative pressure generator, and will not overflow, thereby reducing the pollution to the workpiece and the environment. At the same time, the suction part 321 moves with the movement trajectory of the laser head, and can absorb the metal particles generated by cutting. Under the action of gravity, the speed of the metal particles moving upward is reduced, and then they fall into the receiving part 36 to complete the collection of waste. In addition, the exhaust port 311 is arranged on the side of the isolation part 31, which can be further close to the processing area to speed up the extraction efficiency of smoke and dust. The exhaust port 324 is arranged at the upper end of the suction part 32 and away from the suction end, so that the waste has a longer movement space in the vertical direction inside the suction part 32, and the waste has a longer deceleration and falling stroke to avoid being directly sucked away.

[0035] In some embodiments, reference Figures 1 to 3 The collecting device also includes an air pipe 35 disposed in the isolating member 31, the curvature of the air pipe 35 is adjustable, and the air pipe 35 is used to communicate with the protective gas source. The side wall of the isolating member 31 is also provided with a door body 34 that is rotatably connected, and the door body 34 is also provided with a ventilation hole. A baffle 37 is also provided at the air outlet 311, and an air hole that communicates with the air outlet 311 is also provided on the baffle 37. In this embodiment, the isolating member 31 can be a square shell-like structure, and a through hole is provided at the upper end of the isolating member 31, and a mounting hole is also provided on one side of the through hole, and the mounting hole is used to install the air pipe 35. In order to improve the processing effect and prevent the material from being oxidized during metal cutting and welding, a protective gas can be blown. The air pipe 35 is used to provide a protective atmosphere in the isolating member 31, and the blowing end of the air pipe 35 is set downward to ensure that the protective gas can be blown to the processing area. In addition, a door body 34 is provided on the side wall of the isolating member 31, which can facilitate the adjustment of the posture and blowing direction of the air pipe 35. The door body 34 is provided with ventilation holes, which can speed up the internal air convection speed and improve the dust extraction effect. The baffle 37 at the air outlet 311 is provided with multiple air holes, which can increase the suction force by reducing the air flow through the cross section while ensuring a larger air extraction range, thereby speeding up the extraction of smoke and dust. The door body 34 is provided to facilitate the adjustment of the air pipe 35 inside the isolation member 31, and the ventilation holes on the door body 34 can speed up the entry of external air and improve the suction efficiency.

[0036] Furthermore, the collecting device further includes an air knife 33 disposed on one side of the suction member 32, and the blowing direction of the air knife 33 is obliquely downward and toward the side away from the isolation member 31. In this embodiment, the air knife 33 is disposed on the side of the suction member 32 away from the isolation member 31. After the suction part 321 absorbs the metal particles, smoke particles may adhere to its surface, and the air knife 33 can blow away the smoke particles, achieving a certain cleaning effect.

[0037] In some embodiments, reference Figures 1 to 3 , the collecting device also includes a connecting assembly 38 for connecting the material outlet 322 and the material receiving member 36. The material receiving member 36 is a shell-like structure, with a accommodating cavity inside, and the lower end of the shell extends downward to form two parallel pipelines, one of which is the above-mentioned suction part 321, and the lower end of the other pipeline is the above-mentioned material outlet 322. The port cross-section of the pipeline where the suction part is located is smaller than the port cross-section of the material outlet 322 to increase the suction force. Of course, the height of the material outlet 322 should be higher than the height of the part to leave a certain space for installing the material receiving member 36. The material receiving member 36 can be a box with an upper end opening, and the connecting assembly 38 can be a buckle provided on the two side walls opposite to the material outlet 322, which is used to fix the material receiving member 36 below the material outlet 322. At the same time, a sealing ring can be provided at the joint between the two, and the two can be sealed and connected under the action of the buckle tension to avoid air leakage and weaken the suction force of the suction part 321.

[0038] In some embodiments, reference Figures 1 to 3 The collecting device further includes a filter 325 disposed at the air suction port 324. The filter 325 may be a stainless steel mesh, which is used to block metal particles to prevent the metal particles from being completely sucked away due to excessive wind force inside the suction member 32, thereby affecting the collection effect of the waste. In addition, the suction member 32 is also provided with an observation window 323, which is used for the user to observe whether the receiving member 36 is full of waste. A transparent acrylic plate or glass plate may be provided at the observation window 323 to seal the observation hole.

[0039] In some embodiments, a negative pressure generator may be provided. The negative pressure generator may be an air pump having an air suction end. The air suction end may be divided into two paths and connected to the air suction port 324 and the air suction port 311 one by one. Alternatively, two negative pressure generators may be provided, one of which is connected to the air suction port 324 and the other is connected to the air suction port 311. In this way, the suction forces of the suction part 321 and the isolation member 31 may be controlled separately.

[0040] This application also proposes a laser processing device, referring to Figures 1 to 3, the laser processing equipment includes the above-mentioned collection device. The collection device can be arranged below the laser head of the laser processing equipment, and specifically the via hole can be connected to the laser head, and the via hole at the lower end of the protective cover can be connected to the processing area, so that the processing area is isolated from the outside, and the smoke generated by cutting is sucked away by the negative pressure generator and will not overflow, thereby reducing the pollution to the workpiece and the environment. At the same time, the suction part 321 moves with the movement trajectory of the laser head, and can absorb the metal particles generated by cutting, and the speed of the metal particles moving upward is reduced under the action of gravity, and then falls into the material receiving part 36 to complete the collection of waste.

[0041] Furthermore, the laser processing equipment also includes: a laser head; a laser emitter; a protective cover connecting the laser head and the laser emitter for allowing the laser beam to pass through the inside; and a guide member arranged along the length direction of the protective cover and slidably connected to the protective cover. In this embodiment, the laser processing equipment also includes a base 10, two Y-axis drive modules 11 arranged on the base 10 and spaced apart, an X-axis drive module 12 arranged at the moving end of the Y-axis drive module 11, and a Z-axis drive module 13 arranged at the moving end of the X-axis drive module 12. The laser emitter is arranged on the base 10, and the laser emitted by it is reflected by the first refractive cavity 21, and the optical path is parallel to the Y-axis. A first reflective seat is provided at the moving end of one of the Y-axis driving modules 11. The laser beam reflected by the first refraction cavity 21 enters the first reflective seat. The laser beam emitted from the first reflective seat is parallel to the X-axis and enters the second refraction cavity 23 provided on the moving end of the X-axis driving module 12. The laser beam is emitted from the second refraction cavity 23 with its optical path parallel to the Z-axis and enters the laser head located at the moving end of the Z-axis. Of course, a second reflective seat 24 can also be provided between the laser head and the second refraction cavity 23 so that the laser beam is injected into the galvanometer 25 of the laser head along the Y-axis direction. The second reflective seat 24 is directly connected to the incident end of the galvanometer 25, and no protective cover is required.

[0042] In order to protect the above optical path, protective covers are provided between the first refraction cavity 21 and the first reflection seat, between the first reflection seat and the second refraction cavity 23, and between the second refraction cavity 23 and the laser head. Figure 1 As shown, the protective covers can be named as the first protective cover, the second protective cover 40 and the third protective cover in sequence. The protective cover is a hollow structure with two ends opened, the ends are used to connect optical elements, and the interior can allow the laser beam to pass through. Specifically, an accordion-type protective cover can be selected, and a retractable tubular member such as a bellows can also be used.

[0043] Since the stroke of the Y-axis drive module 11 is relatively short, the first protective cover still has a certain rigidity, and even if it droops naturally, its inner wall will not block the laser beam. However, the stroke of the X-axis drive module 12 is relatively long, and the span of the second protective cover 40 is relatively large. After it droops a certain distance, the inner wall will block the laser light path, so a certain suspension structure is required to assist. The suspension mechanism includes a guide member arranged above the second protective cover 40, and the guide member can be a guide rod or a slide rail. The two ends of the guide member are arranged at the moving end of the Y-axis drive module 11 through a support plate. The second protective cover 40 can be slidably connected to the guide member through a lifting ring or a slider. The lifting ring can be arranged in sequence along the guide rod at a certain interval, and its lower end is connected to the second protective cover 40, so that the second protective cover 40 can be suspended to prevent the second protective cover 40 from sagging and interfering with the laser light path. The third protective cover is arranged along the Z-axis direction, and its sagging is also along the Z-axis, which will not affect the laser light path, and there is no need to set a suspension structure.

[0044] In some embodiments, the laser processing equipment further includes a visual camera 42 disposed on the side of the isolation member 31 away from the material suction member 32, and a light source 41 disposed below the visual camera 42. The visual camera 42 can obtain image information of the workpiece on the workbench below so as to visually locate the workpiece. It is worth noting that the laser processing equipment in the embodiments of the present application can be a laser cutting device, a laser welding device, a laser marking device, etc.

[0045] The specific working principle of this laser processing equipment is as follows:

[0046] In this embodiment, the collection device can be arranged below the laser head of the laser processing equipment, and specifically the through hole can be connected to the laser head, and the through hole at the lower end of the protective cover can be connected to the processing area, so that the processing area is isolated from the outside, and the smoke generated by cutting is sucked away by the negative pressure generator and will not overflow, thereby reducing the pollution to the workpiece and the environment. At the same time, the suction part 321 moves with the movement trajectory of the laser head, and can absorb the metal particles generated by cutting, and the speed of the metal particles moving upward is reduced under the action of gravity, and then falls into the material receiving part 36 to complete the collection of waste materials.

[0047] The above are only partial or preferred embodiments of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A collecting device, characterized in that: include: The isolator is hollow and has holes at the upper and lower ends for the laser to pass through, and the isolator is also provided with an air vent; A suction member is arranged on one side of the isolation member, the lower end of the suction member is configured with a suction portion and a material drop port, and the upper end of the suction member is provided with an air suction port; A material receiving member, disposed below the material suction member and connected to the material drop opening; A negative pressure generator is connected to the air suction port and the gas suction port, and is used to build negative pressure in the isolation member and the suction part.

2. The collecting device according to claim 1, characterized in that The collecting device further comprises an air pipe arranged in the isolating member, the curvature of the air pipe is adjustable, and the air pipe is used to communicate with a protective gas source.

3. The collecting device according to claim 1, characterized in that The collecting device further comprises an air knife arranged on one side of the material suction member, and the blowing direction of the air knife is arranged obliquely downward and toward a side away from the isolation member.

4. The collecting device according to claim 1, characterized in that The collecting device also includes a filter screen arranged at the air suction port.

5. The collecting device according to claim 1, characterized in that: The material suction piece is also provided with an observation window, the air suction port is also provided with a baffle, and the baffle is also provided with an air hole connected with the air suction port.

6. The collecting device according to claim 1, characterized in that The collecting device also includes a drawstring for connecting the material drop opening and the material receiving piece.

7. The collecting device according to claim 1, characterized in that The side wall of the isolation piece is also provided with a rotatably connected door body, and the door body is also provided with ventilation holes.

8. A laser processing device, characterized in that: The invention comprises the collecting device according to any one of claims 1 to 7.

9. The laser processing equipment according to claim 8, characterized in that: The laser processing equipment also includes: Laser head; Laser transmitter; A protective cover, connecting the laser head and the laser emitter, and used for allowing the laser beam to pass through the inside; The guide member is arranged along the length direction of the protective cover and is slidably connected with the protective cover.

10. The laser processing equipment according to claim 9, characterized in that: The laser processing equipment further includes a visual camera arranged on a side of the isolation member away from the material suction member, and a light source arranged below the visual camera.

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