Double-station three-dimensional laser cutting machine with auxiliary slag removal cleaning function

Abstract

The application discloses a double-station three-dimensional laser cutting machine with an auxiliary slag removal and cleaning function, which can thoroughly clean dust and slag generated in a laser cutting process, and no longer needs manual secondary cleaning. In addition, one cutting workbench is independently controlled by two workbench adjusting mechanisms, double-station alternate feeding and discharging are realized, the operation efficiency of laser cutting is greatly improved, the whole dust and slag removal process does not affect laser cutting workpieces, the efficiency of laser cutting is further improved, and the two cutting workbenches can be completely accommodated into the interior of the bed body under the control of the two workbench adjusting mechanisms, work space is saved, and transportation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting, in particular to a double-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function. BACKGROUND

[0002] After the workpiece is cut by the three-dimensional laser cutting machine tool, the cut workpiece needs to be removed in time, and the waste (including slag and dust) on the workpiece and inside the three-dimensional laser cutting machine tool needs to be removed in time.

[0003] Currently, the waste is removed manually, which not only has high work intensity, but also has high difficulty in cleaning the inside of the three-dimensional laser cutting machine tool, and also has certain danger.

[0004] Therefore, referring to Chinese patent CN114559169A, a laser cutting machine tool with self-cleaning function is developed, which can clean the dust generated during processing to a certain extent. However, the cleaning ability of the cleaning structure of this type of laser cutting machine tool is extremely limited, and it can only remove a certain amount of dust with small particle size, and has poor cleaning effect on dust with large particle size and slag with larger particle size, and still needs to be manually cleaned every period of time. And the laser cutting machine tool with self-cleaning function on the market currently only has one processing station, so that when the cleaning structure is started, the laser cutting head and other mechanisms can only be stopped and waited, which slows down the production rhythm and affects the efficiency of laser cutting.

[0005] It is urgent to solve the above problems. SUMMARY

[0006] In order to solve the technical problems that the corresponding laser cutting machine tool has poor cleaning ability and the cleaning process affects the efficiency of laser cutting, the present application provides a double-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function.

[0007] The technical scheme is as follows:

[0008] A double-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function, comprising a bed body and a laser cutting head installed on the bed body through a three-dimensional adjusting mechanism, the bed body comprises a bed body base arranged in a horizontal direction and racks arranged vertically on both sides of the bed body base in the width direction, each rack is provided with a cutting workbench installed through a workbench adjusting mechanism, each cutting workbench can be translated, lifted and rotated under the driving of the workbench adjusting mechanism, the upper surface of each cutting workbench is provided with an adsorption hole, and a dust and slag removal mechanism for generating negative pressure in the corresponding adsorption hole is installed on each cutting workbench, so that part of the dust and part of the slag generated during cutting can be removed through the adsorption hole.

[0009] Both ends of the bed base are detachably equipped with debris collection troughs along its length. The highest point of each debris collection trough is not higher than the lowest point of the upper surface of the bed base. The lower parts of the two frames are equipped with first electric linear modules that extend along the length of the bed. A cleaning and debris removal mechanism is connected between the slides of the two first electric linear modules. The cleaning and debris removal mechanism can reciprocate between the two debris collection troughs under the drive of the two first electric linear modules, thereby sucking up some of the dust on the bed base and sweeping the remaining dust and debris into the two debris collection troughs.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The dual-station 3D laser cutting machine tool with auxiliary slag removal and cleaning functions, employing the above technical solution, not only has a dust suction and slag removal mechanism that can remove some of the dust and debris generated during the laser cutting process in real time through various suction holes, but also a cleaning and slag removal mechanism that can remove some dust from the machine bed base during the cleaning process and sweep the remaining dust and debris into two debris collection troughs. Thus, the dust suction and slag removal mechanisms work together to ensure thorough cleaning of the dust and debris generated during the laser cutting process, eliminating the need for secondary manual cleaning. Furthermore, the two worktable adjustment mechanisms independently control one cutting worktable, enabling alternating loading and unloading at both stations, greatly improving the operating efficiency of laser cutting. Simultaneously, the entire dust and slag removal process does not affect the laser-cut workpiece, further enhancing laser cutting efficiency. Additionally, the two cutting worktables can be completely retracted into the machine bed under the control of the two worktable adjustment mechanisms, saving workspace and reducing transportation difficulties. Attached Figure Description

[0012] Figure 1 A schematic diagram of a dual-station 3D laser cutting machine tool with alternating loading and unloading of materials on two cutting worktables;

[0013] Figure 2 A schematic diagram of a dual-station 3D laser cutting machine tool with both cutting worktables in the stowed-in state;

[0014] Figure 3 A schematic diagram of the cutting worktable from one perspective;

[0015] Figure 4 A structural schematic diagram of the cutting worktable from another perspective;

[0016] Figure 5 This is a sectional view of the cutting worktable;

[0017] Figure 6 A schematic diagram of the cleaning and slag removal mechanism from one perspective;

[0018] Figure 7 This is a structural diagram of the cleaning and slag removal mechanism from another perspective. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, a dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function includes a bed 1 and a laser cutting head 3 mounted on the bed 1 through a three-dimensional adjustment mechanism 2. The three-dimensional adjustment mechanism 2 controls the spatial position of the laser cutting head 3 in the X, Y and Z directions, thereby realizing three-dimensional laser cutting.

[0021] Specifically, the bed 1 includes a bed base 1a arranged horizontally and a frame 1b arranged vertically on both sides of the bed base 1a in the width direction. The three-dimensional adjustment mechanism 2 includes a crossbeam, an X-axis electric linear module mounted on the two frames 1b, a Y-axis electric linear module mounted on the crossbeam, and a Z-axis electric linear module mounted on the slide of the Y-axis electric linear module. The laser cutting head 3 is mounted on the slide of the Z-axis electric linear module through a rotation control mechanism, thereby giving the laser cutting head 3 four degrees of freedom and good flexibility.

[0022] Please see Figures 1-5 Each frame 1b is equipped with a cutting worktable 4 via a worktable adjustment mechanism. Each cutting worktable 4 can move, lift, and rotate under the drive of the worktable adjustment mechanism. Each cutting worktable 4 has an adsorption hole 4a1 on its upper surface. Each cutting worktable 4 is equipped with a dust suction and slag removal mechanism that generates negative pressure in the corresponding adsorption hole 4a1, thereby removing some of the dust and debris generated during cutting through the adsorption hole 4a1.

[0023] Specifically, the worktable adjustment mechanism includes an electric push rod 8, a second electric linear module 9 extending horizontally and mounted on the corresponding frame 1b, and a third electric linear module 10 extending vertically and mounted on the slide of the corresponding second electric linear module 9. The two ends of each electric push rod 8 are respectively hinged to the lower part of the corresponding second electric linear module 9 and the bottom of the cutting worktable 4. Thus, through the mutual cooperation of the electric push rod 8, the second electric linear module 9 and the third electric linear module 10, the cutting worktable 4 can be adjusted in terms of lifting, translation and rotation, which not only has high control precision but also high adjustment efficiency.

[0024] The cutting workbench 4 comprises a slag collection box 4b with an opening on the upper portion and a workbench cover plate 4a detachably covering the slag collection box 4b, the workbench cover plate 4a is hinged to the slide table of the third electric linear module 10, and the slag collection box 4b is hinged to one end of the electric push rod 8. Through the design of the detachable cutting workbench 4, the internal components of the cutting workbench 4 can be easily maintained and replaced.

[0025] Further, the workbench cover plate 4a has a first connecting seat 4a2, the slide table of the third electric linear module 10 has a second connecting seat 10a matched with the first connecting seat 4a2, and the first connecting seat 4a2 is hinged to the second connecting seat 10a. The first connecting seat 4a2 has an outwardly protruding rotation stopping block 4a3, and the second connecting seat 10a has a rotation stopping table 10b matched with the rotation stopping block 4a3. When the cutting workbench 4 is rotated to the horizontal position, the rotation stopping block 4a3 is supported on the rotation stopping table 10b, so that the cutting workbench 4 has better load-bearing capacity.

[0026] Further, the adsorption holes 4a1 are all internally threaded holes, so that the adsorption holes 4a1 are used for air suction to inhale dust and slag, and can also be used as bolt holes for the installation and positioning of workpieces and tooling, that is, one hole has two functions. Therefore, the adsorption holes 4a1 on the cutting workbench 4 are preferably arranged in an array distribution, which not only ensures the reliability of adsorption, but also facilitates the installation and positioning of workpieces and tooling.

[0027] Please refer to Figure 1 and Figure 2 , the slide table of the second electric linear module 9 is provided with a lengthened support 11 extending along the length direction thereof, and each third electric linear module 10 is vertically installed at one end of the corresponding lengthened support 11 away from the second electric linear module 9. By providing the lengthened support 11, the cutting workbench 4 can be slid out of the bed 1 to facilitate the operations of feeding, discharging and removing waste.

[0028] Please refer to Figure 3 and Figure 5 , the cutting workbench 4 has a slag collection cavity 4c inside, each adsorption hole 4a1 is communicated with the corresponding slag collection cavity 4c, and a slag discharge port 4b1 is formed on the outer edge of the cutting workbench 4 away from the corresponding workbench adjusting mechanism to facilitate slag storage and discharge.

[0029] Please refer to Figures 3-5, the dust and slag removal mechanism comprises a filter screen 12 installed in the corresponding slag collection cavity 4c, an electric slag removal assembly 13 installed on the outer edge of the corresponding cutting workbench 4 away from the workbench adjusting mechanism, and at least one negative pressure dust collection assembly 14 installed on the lower surface of the corresponding cutting workbench 4, the filter screen 12 separates the corresponding slag collection cavity 4c into an upper slag storage chamber 4c1 and a dust guide chamber 4c2 arranged in a lower position, the slag removal port 4b1 is in communication with the slag storage chamber 4c1, the electric slag removal assembly 13 can open or block the slag removal port 4b1, the negative pressure dust collection assembly 14 comprises a first filter core shell 14a installed at the bottom of the cutting workbench 4, a first filter core 14b detachably installed in the first filter core shell 14a, and a first negative pressure fan 14c installed at the bottom of the first filter core shell 14a, and the bottom of the cutting workbench 4 is provided with a dust removal hole 4b2 in communication with the corresponding first filter core shell 14a. The filter screen 12 is used for filtering out the slag, so that the slag is left in the slag storage chamber 4c1.

[0030] When the workpiece is cut by laser, smoke and fine slag are generated, which are sucked into the slag storage chamber 4c1 through the adsorption hole 4a1 under the action of the first negative pressure fan 14c, and the larger slag cannot pass through the filter screen 12 and is left in the slag storage chamber 4c1, and the smaller dust and the like pass through the filter screen 12 and enter the dust guide chamber 4c2 or part of the first filter core 14b, and when the slag and dust need to be cleaned after a period of time, the slag removal port 4b1 of the cutting workbench 4 can be opened, and the cutting workbench 4 is inclined to be poured, so that the slag and dust fall to the bed base 1a under the action of gravity, and then the cleaning and slag removal mechanism is used for cleaning.

[0031] Further, the filter screen 12 is inclined, and the installation height of each filter screen 12 gradually decreases towards the direction close to the corresponding slag removal port 4b1, so that the space of the slag storage chamber 4c1 is as large as possible to store more slag, and the slag is more concentrated near the slag removal port 4b1, which is more conducive to the pouring of the slag.

[0032] Please refer to Figure 3 and Figure 5 The electric slag removal assembly 13 comprises a lead screw mounting seat 13a installed on the corresponding cutting workbench 4, a lead screw 13b rotatably installed on the lead screw mounting seat 13a, a lead screw driving motor 13c for driving the rotation of the lead screw 13b, a nut 13d forming a lead screw nut motion pair with the lead screw 13b, and a slag port blocking door 13e matched with the corresponding slag removal port 4b1, and a push-pull rod 13f connected between the slag port blocking door 13e and the corresponding nut 13d, the push-pull rod 13f is slidably arranged in the corresponding lead screw mounting seat 13a, the position of the slag port blocking door 13e can be accurately controlled through the control of the lead screw driving motor 13c and the lead screw nut motion pair, which is stable and reliable and not easy to be stuck.

[0033] Please refer toFigure 1 、 Figure 2 、 Figure 6 and Figure 7 The bed body base 1a is detachably mounted with a slag collection groove 5 at both ends in the length direction, the highest point of each slag collection groove 5 is not higher than the lowest point of the upper surface of the bed body base 1a, the lower parts of the two racks 1b are mounted with first electric linear modules 6 extending along the length direction of the bed body 1, and the sliding tables of the two first electric linear modules 6 are connected with a cleaning and slag removing mechanism, which can reciprocate between the two slag collection grooves 5 under the driving of the two first electric linear modules 6, thereby being able to suck part of the dust on the bed body base 1a and sweep the remaining dust and slag into the two slag collection grooves 5.

[0034] Therefore, the cleaning and slag removing mechanism can suck part of the dust on the bed body base 1a during cleaning and sweep the remaining dust and slag into the two slag collection grooves 5, so that through the cooperation of the dust and slag removing mechanism and the cleaning and slag removing mechanism, the dust and slag generated during the laser cutting process are completely cleaned, and manual secondary cleaning is no longer needed.

[0035] The cleaning and slag removing mechanism includes an air suction scraper 7 fixedly installed on the sliding tables of the two first electric linear modules 6, the air suction scraper 7 is in a box-shaped structure with a dust suction inlet 7a opened at the bottom, the dust suction inlet 7a extends along the width direction of the bed body 1, the bottom of the air suction scraper 7 is provided with a brush 15 located on each side of the dust suction inlet 7a, the brush 15 extends downward to contact or closely approach the bed body base 1a, and the air suction scraper 7 is installed with a dust suction assembly for generating negative pressure in the dust suction inlet 7a. Through the brush 15 of the air suction scraper 7, the bed body base 1a can be efficiently cleaned, and the slag and dust can be swept into the two slag collection grooves 5. The design of double-row brushes 15 has higher cleaning efficiency.

[0036] The dust suction assembly comprises an air suction pipe 19, a high-pressure water pipe 20, a sewage pipe 24, an air suction control valve 21 installed on the air suction pipe 19, a water inlet control valve 22 installed on the high-pressure water pipe 20, at least one dust suction transfer box 16 in communication with the air suction scraper 7, a second filter element shell 17 in communication with each dust suction transfer box 16 respectively, and a second filter element 18 installed in the corresponding second filter element shell 17 respectively. The air suction pipe 19 is in communication with the end of each second filter element shell 17 away from the air suction scraper 7 through an air suction branch pipe 28. The high-pressure water pipe 20 is in communication with the top of each dust suction transfer box 16 through a water flushing branch pipe 23. The sewage pipe 24 is in communication with the bottom of each dust suction transfer box 16 through a sewage branch pipe 25, and a sewage discharge control valve 26 is installed on the sewage branch pipe 25. The end of the air suction pipe 19, on which the air suction control valve 21 is installed, is connected with a negative pressure generator through a pipeline. The end of the high-pressure water pipe 20, on which the water inlet control valve 22 is installed, is connected with a high-pressure water supply device through a pipeline. One end of the sewage pipe 24 is connected with a dust and sewage collecting device through a pipeline.

[0037] When the slag removal mechanism is started, the two first electric linear modules 6 drive the air suction scraper 7 to move back and forth at the bottom of the lathe bed 1. Larger waste is directly swept into the two slag collection grooves 5 under the action of the brush 15. Part of the dust with larger particles is also transferred to the two slag collection grooves 5 under the action of the brush 15. The remaining dust with smaller particles is sucked into the dust suction transfer box 16 through the air suction scraper 7 under the action of the suction of the air suction pipe 19. At this time, each sewage discharge control valve 26 is in a closed state, and the dust cannot enter the sewage pipe 24.

[0038] In the embodiment, a capacitive sensor 29 is installed on each dust suction transfer box 16. When the capacitive sensor 29 detects that the dust suction transfer box 16 is full of dust, a dust removal program is started. At this time, the air suction control valve 21 is closed, each sewage discharge control valve 26 and the water inlet control valve 22 are opened, high-pressure water is flushed into each dust suction transfer box 16 through the high-pressure water pipe 20, and the dust in the dust suction transfer box 16 is flushed into the sewage pipe 24 under the action of the high-pressure water, and then is collected and discharged into the dust and sewage collecting device for final centralized treatment. The flushing mode of high-pressure water is better than the traditional air charging mode in terms of cleaning effect of the dust suction transfer box 16, and the cleaning is more thorough. The dust suction transfer box 16 can also avoid blockage after long-term use.

[0039] Further, referring to Figure 6 , the inside of the air suction scraper 7 is divided into at least two dust suction cavities 7b by a plurality of vertically extending partition plates 27. Each dust suction cavity 7b is in communication with at least one second filter element shell 17. Through the design of the plurality of dust suction cavities 7b, the dust suction and slag suction capacity of the dust suction air inlet 7a is stronger.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function, comprising a bed and a laser cutting head mounted on the bed via a three-dimensional adjustment mechanism, wherein the bed includes a bed base arranged horizontally and a frame arranged vertically on both sides of the bed base in the width direction, characterized in that: Each frame is equipped with a cutting worktable via a worktable adjustment mechanism. Each cutting worktable can move horizontally, rise and fall, and rotate under the drive of the worktable adjustment mechanism. The upper surface of each cutting worktable is provided with adsorption holes, which are all internal bolt holes. Each cutting worktable is equipped with a dust and slag removal mechanism that generates negative pressure in the corresponding adsorption holes, thereby removing some of the dust and debris generated during cutting through the adsorption holes. Both ends of the bed base are detachably equipped with debris collection troughs. The highest point of each debris collection trough is not higher than the lowest point of the upper surface of the bed base. The lower parts of the two frames are equipped with first electric linear modules that extend along the length of the bed. A cleaning and debris removal mechanism is connected between the slides of the two first electric linear modules. The cleaning and debris removal mechanism can reciprocate between the two debris collection troughs under the drive of the two first electric linear modules, thereby sucking up some of the dust on the bed base and sweeping the remaining dust and debris into the two debris collection troughs. Each of the worktable adjustment mechanisms includes an electric push rod, a second electric linear module extending horizontally and mounted on the corresponding frame, and a third electric linear module extending vertically and mounted on the slide of the corresponding second electric linear module. The two ends of each electric push rod are respectively hinged to the lower part of the corresponding second electric linear module and the bottom of the cutting worktable. Each of the second electric linear modules is equipped with an extended bracket extending along its length on the slide of the second electric linear module. Each third electric linear module is vertically mounted at the end of the corresponding extended bracket away from the second electric linear module, so that the cutting worktable (4) can slide outside the bed (1) for loading and unloading and removing waste materials. At the same time, the two cutting worktables can be completely retracted into the bed under the control of the two worktable adjustment mechanisms. Each cutting workbench has a slag collection chamber inside, and each adsorption hole is connected to the corresponding slag collection chamber. A slag discharge port is opened on the outer edge of the cutting workbench away from the corresponding workbench adjustment mechanism. Each dust collection and slag removal mechanism includes a filter screen installed in the corresponding slag collection chamber, an electric slag discharge assembly installed on the outer edge of the corresponding cutting workbench away from the workbench adjustment mechanism, and at least one negative pressure dust collection assembly installed on the lower surface of the corresponding cutting workbench. The filter screen divides the corresponding slag collection chamber into a slag storage chamber and a dust guiding chamber arranged vertically. The slag discharge port is connected to the slag storage chamber. The electric slag discharge assembly can open or close the slag discharge port. The filter screens are all inclined, and the installation height of each filter screen gradually decreases towards the corresponding slag discharge port. The cleaning and slag removal mechanism includes a suction scraper fixedly installed on the slide table of two first electric linear modules. The suction scraper is equipped with a dust collection component that generates negative pressure at the dust collection inlet. The dust collection component includes a suction pipe, a high-pressure water pipe, a drain pipe, a suction control valve installed on the suction pipe, a water inlet control valve installed on the high-pressure water pipe, at least one dust collection transfer box connected to the suction scraper, second filter housings connected to each dust collection transfer box, and second filter elements installed in the corresponding second filter housings. The suction pipe connects to... The suction branch pipe is connected to the end of each second filter housing away from the suction scraper. The high-pressure water pipe is connected to the top of each dust collection transfer box through the flushing branch pipe. The sewage pipe is connected to the bottom of each dust collection transfer box through the sewage branch pipe. Each sewage branch pipe is equipped with a discharge control valve. The end of the suction pipe equipped with the suction control valve is connected to the negative pressure generator through a pipeline. The end of the high-pressure water pipe equipped with the water inlet control valve is connected to the high-pressure water supply device through a pipeline. The end of the sewage pipe is connected to the dust and sewage collection device through a pipeline. Each dust collection transfer box is equipped with a capacitive sensor. When the capacitive sensor detects that the dust collection transfer box is full of dust, the dust discharge program is started. At this time, the suction control valve is closed, and the discharge control valve and water inlet control valve are opened. High-pressure water is flushed into each dust collection transfer box through the high-pressure water pipe. The dust in the dust collection transfer box is washed into the sewage pipe under the action of high-pressure water, and then discharged into the dust and sewage collection device for final centralized treatment.

2. The dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function according to claim 1, characterized in that: The negative pressure dust collection assembly includes a first filter housing installed at the bottom of the cutting workbench, a first filter element detachably installed in the first filter housing, and a first negative pressure fan installed at the bottom of the first filter housing. The bottom of the cutting workbench is provided with dust discharge holes that communicate with the corresponding first filter housings.

3. The dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function according to claim 2, characterized in that: Each of the electric slag discharge assemblies includes a lead screw mounting base installed on the corresponding cutting workbench, a lead screw rotatably mounted on the lead screw mounting base, a lead screw drive motor for driving the lead screw to rotate, a nut that forms a lead screw nut kinematic pair with the lead screw, and a slag outlet sealing door adapted to the corresponding slag discharge port. A push-pull rod is connected between the slag outlet sealing door and the corresponding nut, and the push-pull rod can slide through the corresponding lead screw mounting base.

4. The dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function according to claim 1, characterized in that: The suction scraper is a box-shaped structure with a dust inlet at the bottom. The dust inlet extends along the width of the bed. The bottom of the suction scraper is provided with brushes located on both sides of the dust inlet. The brushes extend downward to contact or be close to the bed base.

5. The dual-station three-dimensional laser cutting machine tool with auxiliary slag removal and cleaning function according to claim 1, characterized in that: The interior of the suction scraper is divided into at least two suction chambers by several vertically extending partitions, and each suction chamber is in communication with at least one second filter housing.

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