Laser cutting equipment capable of automatically fixing workpieces

Abstract

The invention discloses laser cutting equipment capable of automatically fixing a workpiece, and relates to the technical field of laser cutting equipment.According to the laser cutting equipment, the outer side of a serrated wheel strip is fully covered with a water film through a conical drainage block, the water film continuously covers the surface of the serrated wheel strip, high-temperature slag is washed away in time, hardening and adhesion of the slag after cooling are avoided, and it is ensured that the contact face is clean during cutting every time; the H-shaped steel can be directly placed for next-time cutting, the production efficiency is improved, poor contact between a sawtooth wheel strip and steel can be caused by slag adhesion, the stability of a cutting track is ensured through water film protection, dimensional deviation caused by slag interference is avoided, and the service life of the H-shaped steel is prolonged. The fallen slag and the cut fallen materials are moved by matching with the inclination of the inclined guide box, so that the fallen slag and the cut fallen materials are moved to the filter screen I, and part of fine slag is isolated by the filter screen II with smaller grid gaps through the filter screen I; and therefore, workers can conveniently clean and collect the dropped slag and the cut dropped materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting equipment, in particular to a laser cutting equipment capable of automatically fixing workpieces. BACKGROUND

[0002] Three-dimensional five-axis laser cutting technology is an advanced process developed for the high-precision machining requirements of large complex structural parts, such as H-shaped steel, curved sheet metal, etc. Traditional manipulators are limited by machining width and trajectory accuracy, making it difficult to meet the cutting requirements of large-size three-dimensional parts. This technology controls the spatial movement of the laser beam through five-axis linkage, combines with the non-contact processing of high-energy density laser to realize cutting, punching and other operations of complex curved surfaces. The core modules include laser generator, double-swing cutting head, multi-axis motion mechanism and intelligent control system, with functions such as real-time focusing, anti-collision, adaptive parameter adjustment, etc. Compared with the traditional multi-process machining mode, three-dimensional five-axis laser cutting can greatly simplify the process and improve efficiency. At the same time, through RTCP compensation, offline programming and other technologies, high precision and flexible production are ensured, and it is widely used in the fields of automobiles, engineering machinery, steel structures, etc.

[0003] When the existing laser cutting equipment cuts H-shaped steel, a large amount of slag is generated on the outside of the sawtooth gear strip due to cutting. The large amount of slag adheres to the outside of the sawtooth gear strip due to high temperature. The adhered slag changes the actual contact surface of the sawtooth gear strip and the H-shaped steel, causing the placement position of the next H-shaped steel to deviate, resulting in cutting trajectory deviation, causing size error or bevel angle deviation. High-temperature slag accumulation interferes with the focusing of the laser beam, weakening the cutting energy, resulting in uneven or incomplete cutting. High-temperature slag adhesion accelerates the oxidation and wear of the surface of the sawtooth gear strip, causing metal fatigue or deformation. When manually cleaning, contact with high-temperature residues or sharp waste can easily cause burns or scratches. The mixed slag and cutting waste increase the difficulty of sorting and affect the metal recovery efficiency. SUMMARY

[0004] Technical problem to be solved

[0005] To solve the problem of adhering slag on the sawtooth gear strip of the existing laser cutting equipment, which requires a lot of time for cleaning after each cutting, the present application provides a laser cutting equipment capable of automatically fixing workpieces.

[0006] Technical scheme The present application is implemented by the following technical scheme: a laser cutting equipment capable of automatically fixing workpieces, comprising a laser cutting machine, wherein the inside of the laser cutting machine is provided with a placing rack, a plurality of clamping grooves are formed in the inside of the placing rack, a sawtooth gear strip is installed on the inner wall of each clamping groove, an H-shaped steel material is movably installed on the top surface of each sawtooth gear strip, and the spacing between the sawtooth gear strips serves as a natural slag discharge channel, so that the slag directly falls and avoids accumulation affecting the cutting quality. The inner part of the plurality of saw gear strips is provided with a through groove, the inner part of the plurality of saw gear strips is uniformly provided with a plurality of cooling grooves, the outer side surface of the plurality of saw gear strips is uniformly provided with a plurality of flow channel grooves, and the inner wall of the plurality of flow channel grooves is provided with a conical drainage block, so that the outer side surface of the saw gear strip is fully covered with a water film, thereby preventing high-temperature molten slag from being bonded, the flowing water carries away residual particles, and the cleaning frequency during shutdown is reduced.

[0007] Further, the inside of the laser cutting machine is provided with an inclined material guide box, and the inside of the inclined material guide box is provided with a filter screen one.

[0008] Further, the inside of the inclined material guide box is provided with a filter screen two, and the filter screen two is used to further block the molten slag.

[0009] Further, the inside of the inclined material guide box is provided with a water suction pipe, one end surface of the water suction pipe is provided with a water pump, and the outer side surface of the water pump is provided with a water outlet pipe.

[0010] Further, the outer side surface of the water outlet pipe is uniformly provided with a plurality of water pipes one, and the outer side surface of the water outlet pipe is provided with two water pipes two, and the outer side surface of the two water pipes two is provided with a water pipe three.

[0011] Further, the outer side surface of the plurality of water pipes one is in movable contact with the inner wall of the through groove, and the outer side surface of the plurality of water pipes one is uniformly provided with a plurality of water flow holes.

[0012] Further, the inner wall of the plurality of water flow holes is provided with an adjusting block, the inside of the plurality of adjusting blocks is provided with a lifting groove, and the inner wall of the plurality of lifting grooves is uniformly provided with a plurality of springs.

[0013] Further, the inner wall of the plurality of lifting grooves is movably provided with a pressing block, one end surface of the plurality of pressing blocks is provided with a curved surface, and the bottom end surface of the plurality of pressing blocks is fixedly connected with the top end surface of the spring.

[0014] Further, the inside of the laser cutting machine is provided with a gantry, the inside of the gantry is provided with a five-axis rotary table, and the outer side surface of the output end of the five-axis rotary table is provided with a laser head.

[0015] Beneficial effects The present application has the following beneficial effects: (1) The laser cutting equipment for automatically fixing workpieces, through the tapered drainage block, the water film covers the outside of the sawtooth gear strip, the water film continuously covers the surface of the sawtooth gear strip, immediately washes away the high-temperature slag, avoids the hardening adhesion of the slag after cooling, ensures the clean contact surface during each cutting, and the slag does not accumulate, so that the H-shaped steel can be directly placed for the next cutting, the production efficiency is improved, the adhesion of the slag will cause the poor contact of the sawtooth gear strip and the steel, the water film protection ensures the stable cutting track, and the size deviation caused by the slag interference is avoided.

[0016] (2) The laser cutting equipment for automatically fixing workpieces, through the two water pipes two and three, the water spray holes are evenly distributed on the upper surfaces of the two water pipes two and three, so that the falling slag and the cut-off materials are moved in cooperation with the slope of the inclined material guide box, so that the falling slag and the cut-off materials are moved to the filter screen one, part of the small slag is isolated by the filter screen two with smaller grid gap, so that the workers can conveniently clean and collect the falling slag and the cut-off materials.

[0017] Of course, it is not necessary to achieve all the advantages described above when implementing any product of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the laser cutting machine of the present application; Figure 2 It is another view of the overall structure of the laser cutting machine of the present application; Figure 3 It is a schematic diagram of the overall structure of the placing rack of the present application; Figure 4 It is a schematic diagram of the internal structure of the placing rack of the present application; Figure 5 It is a schematic diagram of the internal structure of the inclined material guide box of the present application; Figure 6 It is another view of the structure of the inclined material guide box of the present application; Figure 7 It is a schematic diagram of the internal structure of the sawtooth gear strip of the present application; Figure 8 It is another view of the structure of the sawtooth gear strip of the present application; Figure 9 It is a schematic diagram of the internal structure of the water pipe one of the present application; Figure 10 It is a schematic diagram of the internal structure of the water pipe one of the present application; Figure 9 It is a schematic diagram of the internal structure of the water pipe one of the present application;

[0019] In the figure: 1, laser cutting machine; 2, gantry; 3, five-axis rotary table; 4, laser head; 5, placing rack; 6, clamping groove; 7, sawtooth gear strip; 8, through groove; 9, water pipe one; 10, cooling tank; 11, conical drainage block; 12, adjusting block; 13, lifting groove; 14, spring; 15, extrusion block; 16, camber; 17, inclined guide box; 18, filter screen one; 19, filter screen two; 20, water pipe two; 21, water pump; 22, water suction pipe; 23, water outlet pipe; 24, H-shaped steel; 25, water pipe three; 26, water flow hole; 27, flow channel groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0022] Please refer to Figures 1-10 The embodiment of the present application provides a technical solution: a laser cutting equipment for automatically fixing workpieces, comprising a laser cutting machine 1, a placing rack 5 is installed inside the laser cutting machine 1, a plurality of clamping grooves 6 are formed in the inside of the placing rack 5, a sawtooth gear strip 7 is installed at the inner wall of each clamping groove 6, an H-shaped steel 24 is movably installed at the top surface of each sawtooth gear strip 7, the spacing between the plurality of sawtooth gear strips 7 serves as a natural slag discharge channel, and the molten slag directly falls to avoid accumulation affecting the cutting quality. The inner part of the plurality of saw-toothed gear strips 7 is provided with a through groove 8, and the inner part of the plurality of saw-toothed gear strips 7 is uniformly provided with a plurality of cooling grooves 10, and the outer surface of the plurality of saw-toothed gear strips 7 is uniformly provided with a plurality of flow channel grooves 27, and the inner wall of the plurality of flow channel grooves 27 is provided with a tapered drainage block 11, so that the outer surface of the saw-toothed gear strip 7 is fully covered with a water film, thereby preventing high-temperature molten slag from adhering, and the flowing water carries away the residual particles, reduces the frequency of cleaning during shutdown, and makes the water flow through the cooling grooves 10 to the flow channel grooves 27 on both sides, and then the tapered drainage block 11 makes the outer side of the saw-toothed gear strip 7 fully covered with a water film, and the water film continuously covers the surface of the saw-toothed gear strip 7, immediately washing away the high-temperature molten slag, avoiding the hardening and adhesion of the residual slag after cooling, ensuring that the contact surface is clean every time the cutting is performed, and the molten slag does not accumulate, so that the H-shaped steel can be directly placed for the next cutting, improving the production efficiency, and the molten slag adhering will cause poor contact between the saw-toothed gear strip 7 and the steel, and the water film protection ensures the stability of the cutting track, avoiding the size deviation caused by the interference of the molten slag.

[0023] The laser cutting machine 1 is internally provided with an inclined material guiding box 17, the inner part of the inclined material guiding box 17 is provided with a filter screen one 18, the filter screen one 18 is used to block the waste and molten slag generated during the cutting of the H-shaped steel 24, the inner part of the inclined material guiding box 17 is provided with a filter screen two 19, the filter screen two 19 is used to further block the molten slag, the inner part of the inclined material guiding box 17 is provided with a water suction pipe 22, one end surface of the water suction pipe 22 is provided with a water pump 21, the outer surface of the water pump 21 is provided with a water outlet pipe 23, a plurality of water pipes one 9 are uniformly arranged on the outer surface of the water outlet pipe 23, two water pipes two 20 are arranged on the outer surface of the water outlet pipe 23, and a water pipe three 25 is arranged on the outer surface of the two water pipes two 20, the outer surface of the plurality of water pipes one 9 is in movable contact with the inner wall of the through groove 8, a plurality of water flow holes 26 are uniformly arranged on the outer surface of the plurality of water pipes one 9, an adjusting block 12 is arranged on the inner wall of each water flow hole 26, a lifting groove 13 is formed in the inner part of the adjusting block 12, a plurality of springs 14 are uniformly arranged on the inner wall of the lifting groove 13, a pressing block 15 is movably arranged on the inner wall of the lifting groove 13, an arc surface 16 is arranged on one end surface of the pressing block 15, and the bottom end surface of the pressing block 15 is fixedly connected with the top end surface of the spring 14, and water spray holes are uniformly arranged on the two water pipes two 20 and the water pipe three 25, so that the falling molten slag and the cut-off materials are moved together with the slope of the inclined material guiding box 17, so that the falling molten slag and the cut-off materials are moved to the filter screen one 18, part of the small molten slag is separated by the filter screen two 19 with smaller grid gap through the filter screen one 18, so as to facilitate the cleaning and collection of the falling molten slag and the cut-off materials by the workers.

[0024] The laser cutting machine 1 has a gantry frame 2 installed inside, and a five-axis turntable 3 installed inside the gantry frame 2. A laser head 4 is installed on the outer surface of the output end of the five-axis turntable 3. The laser cutting machine 1 moves the five-axis turntable 3 and the laser head 4 through the gantry frame 2. During the cutting process of the H-beam 24 by the laser head 4, the flange of the H-beam is physically limited by the saw tooth structure of the saw gear rack 7 to avoid displacement caused by vibration or thermal stress. The weight of the long H-beam 24 is evenly distributed by multiple saw gear racks 7, reducing the risk of concentrated deformation of the plate support. The gap between several saw gear racks 7 serves as a natural slag discharge channel, and the molten slag falls directly into the inclined guide box 17.

[0025] The specific workflow of this invention is as follows: When it is necessary to cut a long H-beam 24, the H-beam 24 is placed on the plane of several saw gear racks 7. The tooth peak spacing of the saw gear racks 7 is precisely matched with the width of the lower flange of the H-beam 24. Self-positioning is achieved through clamping, eliminating the need for manual calibration. Furthermore, the laser cutting machine 1 moves the five-axis turntable 3 and the laser head 4 via the gantry 2. The five-axis turntable 3 is the core motion module of the three-dimensional five-axis laser cutting machine 1. Through the linkage of two rotary axes with the three linear axes of the gantry 2, the laser head can be precisely positioned at any angle in space. Through five-axis linkage, The laser head 4 can cut into any position of the workpiece vertically or at an angle, directly completing the processing of complex features such as bevels, intersection lines, and irregular holes of the H-beam 24, avoiding the cumulative errors of traditional multi-process cutting. During the cutting process of the H-beam 24 by the laser head 4, the flange of the H-beam is physically limited by the saw tooth structure of the saw gear rack 7, avoiding displacement caused by vibration or thermal stress. Moreover, the weight of the long H-beam 24 is evenly distributed by multiple saw gear racks 7, reducing the risk of concentrated deformation of the plate support. The gap between several saw gear racks 7 serves as a natural slag discharge channel, and the molten slag falls directly into the inclined guide box 17.

[0026] During the cutting process of the laser head 4, the water pump 21 is controlled by the controller to work. The water pump 21 draws water from the inclined guide box 17 through the suction pipe 22, and then supplies water to several water pipes 9, two water pipes 20 and three water pipes 25 through the water outlet pipe 23. The saw gear 7 has a through groove 8 inside. The saw gear 7 is made of several small pieces welded together, which facilitates the opening of the through groove 8. When water pipe 9 is inserted into the through groove 8, the arc surface 16 of the pressing block 15 can press the water pipe 9 forward. When the pressing block 15 drives the spring 14 to move downward in the lifting groove 13, when the water pipe 9 is fully inserted into the through groove 8, the water pipe 9 is moved outward and pulled out, and then the spring... Under the action of 14, the outer surface of the extrusion block 15 is brought into contact with the inner wall of the cooling tank 10, thereby aligning the water flow hole 26 with the cooling tank 10. This allows water to flow through the cooling tank 10 to the flow channels 27 on both sides, and then through the conical guide block 11, the outer side of the saw gear 7 is fully covered with a water film. The water film continuously covers the surface of the saw gear 7, immediately washing away the high-temperature molten slag and preventing the residue from hardening and adhering after cooling. This ensures that the contact surface is clean during each cut, and that molten slag does not accumulate. There is no need to stop the machine for cleaning, and the H-beam can be placed directly for the next cut, improving production efficiency. Molten slag adhesion can lead to poor contact between the saw gear 7 and the steel. The water film protection ensures a stable cutting trajectory and avoids dimensional deviations caused by molten slag interference.

[0027] When it is necessary to remove the water pipe 9 inside the saw gear rack 7, the water pipe 9 moves forward. Under the action of the arc surface 16, the extrusion block 15 moves into the lifting groove 13. The water pipe 9 is rotated 180 degrees, so that when the water pipe 9 is pulled out, the extrusion block 15 is always in the lifting groove 13. By ensuring that each water outlet 26 is completely aligned with the cooling groove 10, leakage-free directional flow is achieved, avoiding water scattering or pressure loss. The water flows evenly over the surface of the saw gear rack 7 through the matching cooling groove 10, flow channel 27 and conical guide block 11, instantly cooling the high temperature area, completely blocking slag adhesion, and ensuring a clean cutting surface. The extrusion block 15 driven by the spring 14 is precisely reset in the lifting groove 13, so that the water outlet 26 and the cooling groove 10 always maintain dynamic alignment.

[0028] Furthermore, the falling slag and cutting material fall into the inclined guide box 17 through the gaps between several saw gears 7. Water spray holes are evenly distributed on the two water pipes 20 and 25, so that the falling slag and cutting material move in accordance with the inclination of the inclined guide box 17, thereby moving the falling slag and cutting material onto the filter screen 18. Some of the fine slag is separated by the filter screen 2 19 with smaller mesh gaps through the filter screen 18, thus making it convenient for the staff to clean up and collect the falling slag and cutting material.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser cutting device for automatically fixing workpieces, comprising a laser cutting machine (1), characterized in that: The laser cutting machine (1) is equipped with a placement platform (5). The placement platform (5) has several slots (6) inside. Saw gears (7) are installed on the inner walls of the slots (6). H-shaped steel (24) is movably installed on the top surface of the saw gears (7). The spacing between the saw gears (7) serves as a natural slag discharge channel, allowing molten slag to fall directly and avoid accumulation that could affect the cutting quality. A through groove (8) is provided inside each of the saw gear racks (7), and a number of cooling grooves (10) are evenly distributed inside each of the saw gear racks (7). A number of flow channel grooves (27) are evenly distributed on the outer surface of each of the saw gear racks (7). A conical guide block (11) is installed on the inner wall of each of the flow channel grooves (27), so that the outer surface of the saw gear racks (7) is fully covered with a water film, thereby preventing the adhesion of high-temperature molten slag. The flowing water carries away residual particles, reducing the frequency of shutdown for cleaning.

2. The laser cutting equipment for automatically fixing workpieces according to claim 1, characterized in that: The laser cutting machine (1) is equipped with an inclined guide box (17), and a filter screen (18) is installed inside the inclined guide box (17). The filter screen (18) is used to block the waste and slag from the cutting of H-shaped steel (24).

3. The laser cutting equipment for automatically fixing workpieces according to claim 2, characterized in that: The inclined feed box (17) is equipped with a second filter screen (19), which is used to further block molten slag.

4. The laser cutting equipment for automatically fixing workpieces according to claim 3, characterized in that: The inclined feed box (17) is equipped with a suction pipe (22), a water pump (21) is installed on one end of the suction pipe (22), and a water outlet pipe (23) is installed on the outer surface of the water pump (21).

5. The laser cutting equipment for automatically fixing workpieces according to claim 4, characterized in that: The outer surface of the water outlet pipe (23) is evenly distributed with several water pipes one (9), and the outer surface of the water outlet pipe (23) is equipped with two water pipes two (20). The outer surfaces of the two water pipes two (20) are jointly equipped with water pipe three (25).

6. The laser cutting equipment for automatically fixing workpieces according to claim 5, characterized in that: The outer surfaces of several water pipes (9) are in contact with the inner wall of the through groove (8), and several water holes (26) are evenly distributed on the outer surfaces of several water pipes (9).

7. The laser cutting equipment for automatically fixing workpieces according to claim 6, characterized in that: An adjusting block (12) is installed on the inner wall of each of the several water holes (26), and a lifting groove (13) is opened inside each of the several adjusting blocks (12). A number of springs (14) are evenly distributed on the inner wall of each of the several lifting grooves (13).

8. The laser cutting equipment for automatically fixing workpieces according to claim 7, characterized in that: Each of the lifting grooves (13) has a pressing block (15) movably installed on its inner wall. One end of each pressing block (15) has an arc surface (16), and the bottom end of each pressing block (15) is fixedly connected to the top end of the spring (14).

9. The laser cutting equipment for automatically fixing workpieces according to claim 1, characterized in that: The laser cutting machine (1) is equipped with a gantry frame (2), and a five-axis turntable (3) is installed inside the gantry frame (2). A laser head (4) is installed on the outer surface of the output end of the five-axis turntable (3).

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