Laser cutting system

Abstract

The utility model discloses a laser cutting system. The laser cutting system comprises a base, at least two material conveying modules and a laser cutting module, each material conveying module comprises a bearing assembly and a moving assembly, each moving assembly is used for driving the corresponding bearing assembly to move, each bearing assembly comprises at least two positioning plates, and each positioning plate is used for bearing one corresponding to-be-cut product; the laser cutting module comprises at least two laser heads, the bearing assemblies of the at least two material conveying modules alternately move to the laser machining station, and when the bearing assemblies are located at the laser machining station, the at least two laser heads conduct laser cutting on the at least two to-be-cut products at the same time. According to the laser cutting system, at least two sets of material conveying modules are arranged, each set of material conveying module is provided with two machining stations, and the two sets of material conveying modules are driven by the moving assembly to move to the laser machining stations in turn for machining, so that time is saved, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a laser cutting system. Background Art

[0002] Since laser cutting produces less dust and debris, has a smooth surface and requires less subsequent processing, the industrial application of laser cutting was born in the field of hard materials such as glass. The industrial application of laser cutting began in the 1970s. With the development of industry, laser cutting is widely used in various metal and non-metal cutting fields. The cutting process of existing laser cutting equipment must go through the processes of loading, positioning, cutting, and unloading in sequence. The process time is long and the work efficiency is low. Utility Model Content

[0003] The embodiment of the utility model provides a laser cutting system to solve the problem of low working efficiency of existing laser cutting equipment.

[0004] An embodiment of the utility model provides a laser cutting system, comprising a base, at least two material transmission modules and a laser cutting module, wherein the base is provided with a loading and unloading station, a visual positioning station and a laser processing station; each of the material transmission modules comprises a bearing component and a moving component, wherein the moving component is movably arranged on the base, the bearing component is located on the moving component, and the moving component is used to drive the bearing component to move to the loading and unloading station, the visual positioning station and the laser processing station, the bearing component comprises at least two positioning plates, and each positioning plate is used to carry a corresponding product to be cut; the laser cutting module is arranged on the base and located at the laser processing station, the laser cutting module comprises at least two laser heads, the bearing components of the at least two material transmission modules are alternately moved to the laser processing station, and when the bearing component is located at the laser processing station, the at least two laser heads simultaneously perform laser cutting on at least two products to be cut.

[0005] According to the laser cutting system of the embodiment of the utility model, there are at least two sets of material transmission modules, each set of material transmission modules has two processing stations, and can transport two products to be processed at the same time. Driven by the moving component, the two sets of material transmission modules move to the laser processing station in turn to process the products to be processed. While the products to be processed on one set of material transmission modules are being laser cut, the other material transmission modules are in the visual positioning station or performing the loading and unloading procedure. The two stations are operated alternately, which saves time and improves the processing efficiency.

[0006] According to the aforementioned embodiment of the utility model, the moving assembly includes a first translation assembly and a second translation assembly, the first translation assembly is arranged on the base, the second translation assembly is arranged on the first translation assembly, and the bearing assembly is arranged on the second translation assembly; the first translation assembly is used to drive the second translation assembly to translate relative to the base along a first direction, and the second translation assembly is used to drive the bearing assembly to translate relative to the first translation assembly along a second direction, and the second direction is perpendicular to the first direction. The first translation assembly and the second translation assembly are linear modules including guide rails and motors, and the linear modules can drive the second translation assembly on the first translation assembly to reciprocate along the X-axis direction, and the bearing assembly is arranged on the second translation assembly, and the bearing assembly can reciprocate along the Y-axis direction through the second translation assembly, and the first translation assembly and the second translation assembly, driven by the motor, move the product to be processed on the bearing assembly to the processing station.

[0007] According to any of the above embodiments of the utility model, the bearing assembly further includes a positioning assembly, which includes a fixed positioning member and a movable positioning member arranged in pairs, and the movable positioning member clamps the product to be cut between the movable positioning member and the fixed positioning member, so that the product to be cut is positioned on the positioning plate. The fixed positioning member is a positioning column, and a positioning block or a positioning pin can also be selected. The movable positioning member is a positioning cylinder. After the product to be processed is placed on the positioning plate, the positioning cylinder pushes the product to the positioning column for positioning, which can keep the product stable during the processing.

[0008] According to any of the above embodiments of the utility model, two positioning components are correspondingly arranged on each positioning plate, and the two positioning components are arranged in different directions of the positioning plate. The two groups of positioning components can position different sides of the product to be processed to ensure that the product remains stable on both the X-axis and the Y-axis.

[0009] According to any of the aforementioned embodiments of the utility model, the bearing assembly further includes a sensor, the sensor is disposed on the positioning plate, and is communicatively connected with the movable positioning member, and the sensor is used to detect whether a product to be cut is placed on the positioning plate. The sensor and the positioning assembly are connected by signal, and the sensor detects whether there is a product to be processed on the positioning plate, and can timely remind the loading and unloading stations to load or unload materials. After the product to be processed is placed on the positioning plate, the sensor detection is completed and the signal is transmitted to the positioning assembly, and the positioning assembly positions and fixes the product to be processed. After the product is positioned, the moving assembly drives the product to move for processing.

[0010] According to any of the above embodiments of the utility model, the positioning plate is provided with a plurality of adsorption holes, which can be connected to the vacuum adsorption device. The adsorption holes are used to adsorb and fix the product to be processed, thereby further increasing stability.

[0011] According to any of the above embodiments of the utility model, the laser head produces a cut product and waste after laser cutting the product to be cut, and the bearing assembly further comprises a waste box, the waste box is located below the positioning plate, and the positioning plate is provided with a drop opening adapted to the shape of the waste. After the laser cutting of the product is completed, the waste generated by the cutting falls into the drop opening under the action of gravity, eliminating the need for manpower to clean up the waste in real time.

[0012] According to any of the aforementioned embodiments of the utility model, the laser cutting system further includes a visual positioning module, the visual positioning module is arranged on the base and located at the visual positioning station, the visual positioning module includes a first lifting frame, a first lifting drive assembly and at least two groups of camera assemblies, each group of camera assemblies includes a camera, a lens and a light source, the first lifting frame can be lifted and installed on the base through the first lifting drive assembly, and the camera and the lens are installed on the first lifting frame. The visual positioning module takes pictures of the product through the camera, lens and light source, compares the pictures taken, and corrects the deviation to achieve the effect of precise positioning. At the same time, for products of different thicknesses, the first lifting drive assembly can drive the first lifting frame to automatically adjust the focal length along the Z axis, so as to achieve the purpose of compatibility with multiple products.

[0013] According to any of the above embodiments of the utility model, the laser cutting system includes at least two sets of visual positioning modules. The two sets of visual positioning modules can simultaneously position two groups of products without affecting the loading and unloading process of the two groups of products.

[0014] According to any of the aforementioned embodiments of the utility model, the laser cutting module also includes at least two lasers, at least two sets of laser optical paths, a dust hood, a second lifting frame and a second lifting drive assembly, the at least two laser heads are 3D laser heads, the laser optical path is arranged between the laser and the 3D laser head, the dust hood is provided with a through hole, the laser emitted by the 3D laser head can pass through the through hole to perform laser cutting on the product to be cut, the dust hood can be connected to the vacuum adsorption equipment, the second lifting frame can be lifted and installed on the base through the second lifting drive assembly, and the 3D laser head is installed on the second lifting frame. After the laser is emitted by the laser, it passes through the optical device of the laser light path to adjust the quality of the light path, and then the product is cut by the 3D laser head. For products of different thicknesses, the second lifting drive component can drive the second lifting frame to automatically adjust the distance between the 3D laser head and the product along the Z axis to achieve compatibility with multiple products. At the same time, a dust hood is provided under the laser head. When the laser head is processing the product, the dust hood can block the splashing of debris generated during the processing. The vacuum adsorption equipment connected to the dust hood adsorbs the debris to keep the processing table clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the laser cutting system of the utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of a carrier assembly of an embodiment of the laser cutting system of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the laser cutting module of the first embodiment of the laser cutting system of the utility model;

[0019] Figure 4 It is a schematic diagram of the visual positioning module of the first embodiment of the laser cutting system of the present utility model.

[0020] Description of reference numerals:

[0021] 100-base;

[0022] 200-material transmission module; 210-carrying component; 211-positioning plate; 211a-adsorption hole; 211b-dropping port; 212-positioning component; 212a-fixed positioning member; 212b-movable positioning member; 213-sensor; 214-waste box; 220-moving component;

[0023] 300-laser cutting module; 310-laser head; 320-laser optical path; 330-laser; 340-dust hood; 350-second lifting frame; 360-second lifting drive assembly;

[0024] 400 - visual positioning module; 410 - camera assembly; 411 - camera; 412 - lens; 413 - light source; 420 - first lifting frame; 430 - first lifting drive assembly.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used 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 a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present utility model embodiment provides a laser cutting system, including a base 100, at least two material transmission modules 200 and a laser cutting module 300, wherein the base 100 is provided with a loading and unloading station, a visual positioning station and a laser processing station; each of the material transmission modules 200 includes a bearing component 210 and a moving component 220, wherein the moving component 220 is movably arranged on the base 100, the bearing component 210 is located on the moving component 220, and the moving component 220 is used to drive the bearing component 210 to move to the loading and unloading station, the visual positioning station and the Laser processing station, the supporting component 210 includes at least two positioning plates 211, each of the positioning plates 211 is used to support a corresponding product to be cut; the laser cutting module 300 is arranged on the base 100 and is located at the laser processing station, the laser cutting module 300 includes at least two laser heads 310, the supporting components 210 of the at least two material transmission modules 200 are alternately moved to the laser processing station, and when the supporting component 210 is located at the laser processing station, the at least two laser heads 310 simultaneously perform laser cutting on at least two products to be cut.

[0030] According to the laser cutting system of the embodiment of the utility model, there are at least two sets of material transmission modules 200, each set of material transmission modules 200 has two processing stations, which can simultaneously transport two products to be processed. Driven by the moving component 220, the two sets of material transmission modules 200 move to the laser processing station in turn to process the products to be processed. While the products to be processed on one set of material transmission modules 200 are being laser cut, the other material transmission modules 200 are in the visual positioning station or performing loading and unloading procedures. The alternating operation of the two stations saves time and improves the processing efficiency.

[0031] In some embodiments, the moving assembly 220 includes a first translation assembly and a second translation assembly, the first translation assembly is arranged on the base 100, the second translation assembly is arranged on the first translation assembly, and the bearing assembly 210 is arranged on the second translation assembly; the first translation assembly is used to drive the second translation assembly to translate relative to the base 100 along a first direction, and the second translation assembly is used to drive the bearing assembly 210 to translate relative to the first translation assembly along a second direction, and the second direction is perpendicular to the first direction. The first translation assembly and the second translation assembly are linear modules including guide rails and motors. In this embodiment, the first direction is the X-axis direction, and the second direction is the Y-axis direction. The linear module can drive the second translation assembly on the first translation assembly to reciprocate along the X-axis direction. The bearing assembly 210 is arranged on the second translation assembly, and the bearing assembly 210 can reciprocate along the Y-axis direction through the second translation assembly. The first translation assembly and the second translation assembly are driven by the motor so that the product to be processed on the bearing assembly 210 moves according to a predetermined trajectory.

[0032] In some embodiments, the carrier assembly 210 further includes a positioning assembly 212, which includes a fixed positioning member 212a and a movable positioning member 212b arranged in pairs, and the movable positioning member 212b clamps the product to be cut between the movable positioning member 212b and the fixed positioning member 212a, so that the product to be cut is positioned on the positioning plate 211. The fixed positioning member 212a uses a positioning column, and can also use a positioning block or a positioning pin, etc. The movable positioning member 212b is a positioning cylinder. After the product to be processed is placed on the positioning plate 211, the positioning cylinder pushes the product to be positioned against the positioning column, and the positioning assembly 212 can stabilize the motion state of the product to be processed during the processing.

[0033] In some embodiments, two positioning components 212 are correspondingly disposed on each positioning plate 211, and the two positioning components 212 are disposed in different directions of the positioning plate 211. The two sets of positioning components 212 can position different sides of the product to be processed, ensuring that the product remains stable on both the X-axis and the Y-axis without displacement deviation during the processing.

[0034] In some embodiments, the bearing assembly 210 further includes a sensor 330, which is disposed on the positioning plate 211 and is in communication connection with the movable positioning member 212b. The sensor 330 is used to detect whether a product to be cut is placed on the positioning plate 211. The sensor 330 is connected to the positioning assembly 212 and the loading manipulator signal. The sensor 330 detects whether there is a product to be processed on the positioning plate 211, and the material can be loaded or unloaded in time. After the product to be processed is placed on the positioning plate 211, the sensor 330 completes the detection and transmits the signal to the positioning assembly 212. The positioning assembly 212 positions and fixes the product to be processed. After the product to be processed is positioned, the moving assembly 220 drives the product to be processed to move to complete the subsequent processing steps.

[0035] In some embodiments, the positioning plate 211 is provided with a plurality of adsorption holes 211a, which can be connected to a vacuum adsorption device. The adsorption holes 211a are used to adsorb and fix the product to be processed, and the vacuum adsorption device can adsorb the product to be processed on the positioning plate 211 through the adsorption holes 211a, further increasing the stability during movement.

[0036] In some embodiments, the laser head 310 produces cut products and waste after laser cutting the product to be cut. The bearing assembly 210 also includes a waste box 214, which is located below the positioning plate 211. The positioning plate 211 is provided with a drop opening 211b adapted to the shape of the waste. After the laser cutting of the product is completed, the waste generated by the cutting falls into the drop opening 211b under the action of gravity, which is convenient for personnel to clean up the waste regularly and avoids the tediousness of real-time manpower cleaning of the waste.

[0037] In some embodiments, the laser cutting system also includes a visual positioning module 400, which is disposed on the base 100 and is located at a visual positioning station. The visual positioning module 400 includes a first lifting frame 420, a first lifting drive assembly 430 and at least two groups of camera assemblies 410, each group of camera assemblies 410 includes a camera 411, a lens 412 and a light source 413, and the first lifting frame 420 can be lifted and installed on the base 100 through the first lifting drive assembly 430, and the camera 411 and the lens 412 are installed on the first lifting frame 420. The visual positioning module 400 takes pictures of the product through the camera 411, lens 412, and light source 413, compares the pictures, and corrects the deviation to achieve the effect of precise positioning. In this embodiment, the camera 411 uses a commonly used charge-coupled device (CCD) camera 411. During positioning, the moving component 220 drives the product to be processed to move under the CCD camera 411 of the visual positioning station. The first lifting drive component 430 drives the CCD camera 411 and lens 412 on the first lifting frame 420 to adjust the Z-axis for products of different thicknesses, so as to achieve compatibility with multiple products.

[0038] In some embodiments, the laser cutting system includes at least two sets of visual positioning modules 400. The two sets of visual positioning modules 400 can simultaneously position two groups of products. When the products on one set of visual positioning modules 400 are laser cut, the products on the other visual positioning modules 400 are positioned, saving processing time.

[0039] In some embodiments, the laser cutting module 300 further includes at least two lasers 330, at least two sets of laser optical paths 320, a dust cover 340, a second lifting frame 350 and a second lifting drive assembly 360. At least two laser heads 310 are 3D laser heads 310. The laser optical path 320 is arranged between the laser 330 and the 3D laser head 310. The dust cover 340 is provided with a through hole. The laser emitted by the 3D laser head 310 can pass through the through hole to perform laser cutting on the product to be cut. The dust cover 340 can be connected to the vacuum adsorption device. The second lifting frame 350 can be lifted and installed on the base 100 through the second lifting drive assembly 360. The 3D laser head 310 is installed on the second lifting frame 350. The laser performs 3D dynamic cutting through the 3D laser head 310 without real-time adjustment of the Z axis. After the laser is emitted by the laser 330, it passes through the optical device of the laser optical path 320 to adjust the optical path quality, and then the 3D laser head 310 cuts the product. For products of different thicknesses, the second lifting drive assembly 360 can drive the second lifting frame 350 to automatically adjust the distance between the 3D laser head 310 and the product along the Z axis to achieve compatibility with multiple products. At the same time, a dust hood 340 is set below the laser head 310. When the laser head 310 processes the product, the dust hood 340 can block the debris generated during the processing. The vacuum adsorption device connected to the dust hood 340 absorbs the debris and keeps the processing table clean. The laser processing system is installed on a precision marble platform with a flatness of up to 0.02 mm to ensure the accuracy of the laser system.

[0040] During the product processing process, the upstream robot of the laser cutting system places the product on the loading and unloading station, the sensor 330 on the supporting component 210 senses the product to be processed, and the positioning component 212 starts to push and position the product to be processed. After the vacuum adsorption equipment vacuum adsorbs the product to be processed through the adsorption hole 211a, the linear module on the moving component 220 moves the product to be processed to the bottom of the visual positioning system on the visual positioning station for visual positioning. After positioning, the linear module on the moving component 220 moves the product to be processed to the bottom of the laser cutting module 300 on the laser processing station for cutting. The laser head 310 uses an infrared laser to focus the laser on the product to be processed, melts the product at the focus, and takes away the waste after product processing under the action of gravity and negative pressure airflow, thereby realizing functions such as drilling or cutting R angles according to a predetermined curve. After the cutting is completed, the unloading process is completed by the downstream robot. The embodiment of the utility model is double-station alternating. Compared with 2D laser cutting machines on the market, the laser cutting system of the utility model embodiment solves the problems of poor cutting compatibility, low cutting efficiency, low precision, and great debugging difficulty. The qualified rate of products processed by the laser cutting system of this embodiment is greater than 99.9%, the cutting hole and the R intersection collapse edge are greater than 0.3mm perpendicular to the cutting line direction, the collapse edge is greater than 0.1mm perpendicular to the cutting line direction, and the depth of the collapse edge in the Z direction is greater than 0.12mm, realizing automatic clamping, automatic loading and unloading, CCD positioning, automatic waste collection and other functions.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser cutting system, characterized in that: include: A base, wherein the base is provided with a loading and unloading station, a visual positioning station and a laser processing station; At least two material transmission modules, each of which includes a bearing assembly and a moving assembly, the moving assembly is movably arranged on the base, the bearing assembly is located on the moving assembly, the moving assembly is used to drive the bearing assembly to move to the loading and unloading station, the visual positioning station and the laser processing station, the bearing assembly includes at least two positioning plates, each of which is used to carry a corresponding product to be cut; A laser cutting module is arranged on the base and located at the laser processing station. The laser cutting module includes at least two laser heads. The supporting components of the at least two material transmission modules are alternately moved to the laser processing station. When the supporting components are located at the laser processing station, the at least two laser heads simultaneously perform laser cutting on at least two products to be cut.

2. The laser cutting system according to claim 1, characterized in that: The moving assembly includes a first translation assembly and a second translation assembly, the first translation assembly is arranged on the base, the second translation assembly is arranged on the first translation assembly, and the bearing assembly is arranged on the second translation assembly; the first translation assembly is used to drive the second translation assembly to translate along a first direction relative to the base, and the second translation assembly is used to drive the bearing assembly to translate along a second direction relative to the first translation assembly, and the second direction is perpendicular to the first direction.

3. The laser cutting system according to claim 1, characterized in that: The bearing assembly also includes a positioning assembly, which includes a fixed positioning member and a movable positioning member arranged in pairs. The movable positioning member clamps the product to be cut between the movable positioning member and the fixed positioning member, so that the product to be cut is positioned on the positioning plate.

4. The laser cutting system according to claim 3, characterized in that: Two positioning components are correspondingly arranged on each positioning plate, and the two positioning components are arranged in different directions of the positioning plate.

5. The laser cutting system according to claim 3, characterized in that: The bearing assembly further comprises a sensor, which is disposed on the positioning plate and is in communication connection with the movable positioning member, and the sensor is used for detecting whether a product to be cut is placed on the positioning plate.

6. The laser cutting system according to claim 1, characterized in that: The positioning plate is provided with a plurality of adsorption holes, and the plurality of adsorption holes can be communicated with a vacuum adsorption device.

7. The laser cutting system according to claim 1, characterized in that: The laser head produces cut products and waste after laser cutting the product to be cut. The supporting component also includes a waste box, which is located below the positioning plate. The positioning plate is provided with a drop opening adapted to the shape of the waste.

8. The laser cutting system according to claim 1, characterized in that: The laser cutting system also includes a visual positioning module, which is arranged on the base and located at the visual positioning station. The visual positioning module includes a first lifting frame, a first lifting drive assembly and at least two groups of camera assemblies, each group of camera assemblies includes a camera, a lens and a light source, the first lifting frame can be lifted and installed on the base through the first lifting drive assembly, and the camera and the lens are installed on the first lifting frame.

9. The laser cutting system according to claim 1, characterized in that: The laser cutting system includes at least two sets of visual positioning modules.

10. The laser cutting system according to claim 1, characterized in that: The laser cutting module also includes at least two lasers, at least two sets of laser optical paths, a dust hood, a second lifting frame and a second lifting drive assembly. The at least two laser heads are 3D laser heads. The laser optical path is arranged between the laser and the 3D laser head. The dust hood is provided with a through hole. The laser emitted by the 3D laser head can pass through the through hole to perform laser cutting on the product to be cut. The dust hood can be connected to a vacuum adsorption device. The second lifting frame can be lifted and installed on the base through the second lifting drive assembly, and the 3D laser head is installed on the second lifting frame.

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