Laser cutting device capable of achieving automatic positioning of object to be cut

Abstract

The utility model relates to the technical field of laser cutting, in particular to a laser cutting device capable of automatically positioning an object to be cut, which comprises a gantry frame and a mounting underframe, a cutting worktable is arranged on the mounting underframe, and a limiting baffle is mounted at the tail end of the upper surface of the cutting worktable. A plurality of strip-shaped mounting holes are formed in the upper surface of the cutting workbench at intervals, a first lifting support is arranged below the cutting workbench, a first lifting driving source is fixedly installed at the bottom of the cutting workbench, roller shafts are arranged in the strip-shaped mounting holes, rollers are fixedly arranged on the roller shafts in a sleeving mode, and the first lifting driving source and the second lifting driving source are fixedly installed at the bottom of the cutting workbench. A rotation driving source is fixedly arranged on the first lifting bracket; side alignment mechanisms are arranged on the two sides of the cutting workbench. The cutting device has the advantages that a large amount of manual labor intensity is avoided, the machining efficiency is improved, the bottom of an object to be cut is prevented from being scratched, and the quality of finished products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a laser cutting device capable of realizing automatic positioning of an object to be cut. Background Art

[0002] Laser cutting is to use the energy released when the laser beam is irradiated onto the surface of the workpiece to melt and evaporate the workpiece to achieve the purpose of cutting and engraving. Using three-dimensional five-axis laser cutting can not only save samples and tooling equipment, but also greatly shorten the production cycle.

[0003] In the prior art, when a three-dimensional five-axis laser cutting machine is used to cut an object, like a traditional laser cutting machine, the object to be cut needs to be fixed on the operating table of the three-dimensional five-axis laser cutting machine using a fixing fixture. The traditional fixing fixture is fixed by a bolt fixing structure inserted in the operating table. For example, some plate objects to be cut need to be manually positioned and then fixed by bolts. The object to be cut is usually a steel profile with a large weight. Manual handling and positioning is not only troublesome to operate, but also causes a very high labor intensity and even causes safety accidents. At the same time, in order to cut, the laser cutting equipment in the prior art will be provided with a plurality of top teeth on the top of its workbench. When positioning the object to be cut, the object to be cut will usually move on the top teeth, causing slip marks on the lower surface of the object to be cut, affecting the quality of the finished product. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a laser cutting device which can realize automatic positioning of an object to be cut, so as to solve the above-mentioned problems existing in the prior art.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: a laser cutting device capable of realizing automatic positioning of an object to be cut, comprising a gantry frame and a mounting base frame arranged below the gantry frame, a Z-axis moving mechanism being arranged on the crossbeam of the gantry frame, the Z-axis moving mechanism being driven by a Y-axis driving mechanism to move back and forth along the length direction of the crossbeam of the gantry frame, a laser cutter being arranged on the output shaft of the Z-axis moving mechanism; a cutting table being arranged on the mounting base frame, the cutting table being driven by the table driving mechanism to move back and forth along the length direction of the crossbeam perpendicular to the gantry frame; a plurality of top teeth being evenly arranged on the upper surface of the cutting table, a limited stopper being installed at the tail end of the upper surface of the cutting table, a plurality of strip-shaped mounting holes being arranged on the upper surface of the cutting table, The length direction is the same as the length direction of the crossbeam of the gantry frame, and the plurality of strip-shaped mounting holes are arranged at intervals along the length direction of the crossbeam perpendicular to the gantry frame. A first lifting bracket is provided below the cutting workbench, and a first lifting drive source is fixedly installed at the bottom of the cutting workbench. The output shaft of the first lifting drive source is fixedly connected to the first lifting bracket for driving the first lifting bracket to lift and lower. A roller shaft having an extension direction the same as the length direction of the strip-shaped mounting hole is provided in the strip-shaped mounting hole, and both ends of the roller shaft are rotatably connected to the first lifting bracket, a roller is fixedly sleeved on the roller shaft, and a rotating drive source for driving the roller shaft to rotate axially is fixedly provided on the first lifting bracket; side alignment mechanisms for clamping and aligning two sides of the object to be cut are provided on both sides of the cutting workbench.

[0006] The beneficial effect of the utility model is that after the object to be cut is conveyed to the cutting workbench, the first lifting drive source drives the first lifting bracket to rise, so that the roller lifts the object to be cut, and then the rotating drive source drives the roller shaft to rotate axially, so that the object to be cut moves toward the limit baffle until it abuts against the limit baffle, and then the object to be cut is clamped and positioned by the side alignment mechanism, so that the object to be cut is positioned in the X-axis direction and the Y-axis direction. After the initial position of the laser cutter is set only once, it is only necessary to position the object to be cut to start processing, thereby avoiding the need to reposition the laser cutter for each processing, and also avoiding a large amount of manual labor intensity caused by manual positioning, thereby improving processing efficiency, and also avoiding scratches on the bottom of the object to be cut during the positioning process, thereby improving the quality of the finished product.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the upper surface of the cutting workbench is provided with a plurality of groups of centering mounting holes arranged at intervals along the length direction of the beam perpendicular to the gantry frame, and the number of the centering mounting holes in each group is multiple, and the plurality of centering mounting holes are arranged at intervals along the length direction of the beam of the gantry frame, a second lifting bracket is provided in the centering mounting hole, a roller is rotatably provided on the top of the second lifting bracket, and the axial direction of the roller is the same as the length direction of the centering mounting hole, and a second lifting drive source is provided at the bottom of the cutting workbench, and the output shaft of the second lifting drive source is connected to the second lifting bracket to drive the second lifting bracket to rise and fall.

[0009] The beneficial effect of adopting the above further scheme is: the roller is driven to rise and fall by the second lifting drive source. When the roller drives the object to be cut to be positioned in the X-axis direction, the first lifting bracket is lowered and the second lifting bracket is lifted, so that the roller contacts the bottom of the object to be cut. Since the axial direction of the roller is the same as the length direction of the centering mounting hole, the friction force on the bottom of the object to be cut is reduced when clamping and positioning in the Y-axis direction, thereby ensuring the stability and smoothness of the clamping and positioning.

[0010] Furthermore, a plurality of centering mounting holes are arranged between two adjacent strip-shaped mounting holes.

[0011] The beneficial effect of adopting the above further solution is: a plurality of centering mounting holes are provided, and a plurality of second lifting brackets are provided correspondingly, so as to be suitable for manufacturing objects to be cut of different sizes.

[0012] Furthermore, one of the second lifting drive sources is fixedly disposed between two adjacent strip-shaped mounting holes, and the second lifting drive source is connected to the second lifting bracket between the two adjacent strip-shaped mounting holes.

[0013] The beneficial effect of adopting the above further solution is that a second lifting drive source and a second lifting bracket are independently arranged between two adjacent bar-shaped mounting holes to avoid interference between the second lifting bracket and the first lifting bracket, thereby ensuring smooth lifting of the two lifting brackets.

[0014] Furthermore, the side alignment mechanism comprises an alignment cylinder, and an alignment block for abutting against a side wall of the object to be cut is fixedly provided on the piston rod of the alignment cylinder.

[0015] The beneficial effect of adopting the above further solution is that the side alignment mechanism adopts an alignment cylinder, which has a simple structure and is easy to control.

[0016] Furthermore, a buffer pad is fixedly provided on a side of the alignment block away from the alignment cylinder.

[0017] The beneficial effect of adopting the above further solution is that the provision of the buffer pad can reduce the impact between the alignment block and the object to be cut, thereby avoiding damage to the side wall of the object to be cut.

[0018] Furthermore, the workbench driving mechanism includes a workbench guide rail and a workbench bevel rack which are arranged on the mounting base and perpendicular to the length direction of the crossbeam of the gantry frame. The cutting workbench is slidably arranged on the workbench guide rail. A workbench driving motor and a workbench reducer which are transmission-connected are fixedly arranged on the cutting workbench. A workbench driving gear is transmission-connected on the output shaft of the workbench reducer, and the workbench driving gear is meshed with the workbench bevel rack.

[0019] The beneficial effect of adopting the above further solution is: it is convenient to drive the movement of the cutting workbench and realize accurate control of the movement of the cutting workbench.

[0020] Furthermore, a mounting groove is provided on the upper surface of the workbench, the workbench drive motor and the workbench reducer are arranged in the mounting groove, and a cover plate for sealing the mounting groove is provided at the notch of the mounting groove.

[0021] The beneficial effect of adopting the above further solution is that the arrangement of the mounting groove facilitates the installation of the workbench drive motor and the workbench reducer.

[0022] Furthermore, there are multiple first lifting drive sources, and the multiple first lifting drive sources are evenly arranged at the bottom of the cutting workbench, and the output shafts of the multiple first lifting drive sources are fixedly connected to the first lifting bracket to synchronously drive the first lifting bracket to rise and fall.

[0023] The beneficial effect of adopting the above further scheme is: multiple first lifting drive sources are used to synchronously drive the lifting of the first lifting bracket, avoiding the shaking of the first lifting bracket during the lifting process when using only one first lifting drive source, while ensuring sufficient lifting power.

[0024] Furthermore, a plurality of fixing seats are provided around the mounting base, and fixing bolt holes are provided on the fixing seats.

[0025] The beneficial effect of adopting the above further solution is that it is easy to install the mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the installation structure of the lower surface of the cutting workbench of the utility model;

[0028] Figure 3It is a schematic diagram of the installation structure on the first lifting bracket in the utility model;

[0029] Figure 4 It is a schematic diagram of the installation of the roller on the second lifting bracket in the utility model;

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Gantry frame; 2. Mounting base; 3. Z-axis moving mechanism; 4. Y-axis driving mechanism; 5. Cutting table; 6. Top gear; 7. Limit baffle; 8. Strip mounting hole; 9. First lifting bracket; 10. First lifting drive source; 11. Roller shaft; 12. Roller; 13. Rotation drive source; 14. Centering mounting hole; 15. Second lifting bracket; 16. Roller; 17. Second lifting drive source; 18. Alignment cylinder; 19. Alignment block; 20. Buffer pad; 21. Table guide rail; 22. Table bevel rack; 23. Mounting slot; 24. Fixed seat. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1 , Figure 2 As shown, an embodiment of the utility model includes a gantry frame 1 and a mounting base 2 arranged below the gantry frame 1, a plurality of fixing seats 24 are arranged around the mounting base 2, and fixing bolt holes are arranged on the fixing seats 24 to facilitate the fixed installation of the mounting base 2, a Z-axis moving mechanism 3 is arranged on the crossbeam of the gantry frame 1, and the Z-axis moving mechanism 3 moves back and forth along the length direction of the crossbeam of the gantry frame 1 driven by the Y-axis driving mechanism 4, and a laser cutter is arranged on the output shaft of the Z-axis moving mechanism 3, and the specific structures of the Z-axis moving mechanism 3, the Y-axis driving mechanism 4 and the laser cutter are conventional technologies in the field, and their specific structures are not described here.

[0034] A cutting workbench 5 is provided on the mounting frame 2, and the cutting workbench 5 moves back and forth along the length direction of the beam perpendicular to the gantry frame 1 under the drive of the workbench driving mechanism; specifically, the workbench driving mechanism includes a workbench guide rail 21 and a workbench bevel rack 22 which are arranged on the mounting frame 2 and perpendicular to the length direction of the beam of the gantry frame 1, and the number of the workbench guide rails 21 is two, and the two workbench guide rails 21 are respectively arranged on both sides of the length direction of the mounting frame 2. Specifically, side frames are provided on both sides of the length direction of the mounting frame 2, and the side frames are arranged along the length direction of the mounting frame 2, and the two workbench guide rails 21 are fixed on the two side frames.

[0035] The cutting workbench 5 is slidably arranged on the workbench guide rail 21. Specifically, the workbench guide rail 21 is a T-shaped guide rail. Corresponding T-shaped slide grooves are correspondingly arranged on both sides of the bottom of the cutting workbench 5. The T-shaped guide rail is slidably arranged in the T-shaped slide groove. A workbench drive motor and a workbench reducer with a transmission connection are fixedly arranged on the cutting workbench 5 (the workbench drive motor and the workbench reducer are both conventional technologies in the field, and are not drawn in the accompanying drawings). A workbench drive gear is transmission-connected on the output shaft of the workbench reducer, and the workbench drive gear is meshed with the workbench bevel rack 22, which facilitates the movement of the cutting workbench 5 and realizes precise control of the movement of the cutting workbench 5.

[0036] In a preferred embodiment of the utility model, a mounting groove 23 is provided on the upper surface of the workbench, the workbench drive motor and the workbench reducer are arranged in the mounting groove 23, and the notch of the mounting groove 23 is provided with a cover plate (not drawn in the accompanying drawings) for covering the mounting groove 23. The setting of the mounting groove 23 facilitates the installation of the workbench drive motor and the workbench reducer.

[0037] A plurality of top teeth 6 are evenly arranged on the upper surface of the cutting workbench 5, and a limit baffle 7 is installed at the tail end of the upper surface of the cutting workbench 5. The limit baffle 7 can be installed on the cutting workbench 5 in a fixed manner, and can also be connected to the cutting workbench 5 in a detachable manner such as bolt fixing. A plurality of strip mounting holes 8 are arranged on the upper surface of the cutting workbench 5, and the length direction of the strip mounting holes 8 is the same as the length direction of the crossbeam of the gantry frame 1. The plurality of strip mounting holes 8 are arranged at intervals along the length direction of the crossbeam perpendicular to the gantry frame 1.

[0038] like Figure 3 As shown, a first lifting bracket 9 is provided below the cutting workbench 5, and a first lifting drive source 10 is fixedly installed at the bottom of the cutting workbench 5. The lifting drive source can be a linear motor or an existing conventional linear drive mechanism such as a cylinder. The output shaft of the first lifting drive source 10 is fixedly connected to the first lifting bracket 9 to drive the first lifting bracket 9 to rise and fall. A roller shaft 11 whose extension direction is the same as the length direction of the strip mounting hole 8 is provided in the strip mounting hole 8. Both ends of the roller shaft 11 are rotatably connected to the first lifting bracket 9. A roller 12 is fixedly sleeved on the roller shaft 11. A rotating drive source 13 for driving the roller shaft 11 to rotate axially is fixedly provided on the first lifting bracket 9; both sides of the cutting workbench 5 are provided with side alignment mechanisms for clamping and aligning the two sides of the object to be cut.

[0039] There are multiple first lifting drive sources 10, and the multiple first lifting drive sources 10 are evenly arranged at the bottom of the cutting workbench 5, and the output shafts of the multiple first lifting drive sources 10 are fixedly connected to the first lifting bracket 9 for synchronously driving the first lifting bracket 9 to rise and fall. Multiple first lifting drive sources 10 are used to synchronously drive the lifting and falling of the first lifting bracket 9, so as to avoid shaking of the first lifting bracket 9 during the lifting process when only one first lifting drive source 10 is used, and at the same time ensure sufficient lifting power.

[0040] In this embodiment, the upper surface of the cutting workbench 5 is provided with a plurality of groups of centering mounting holes 14 spaced apart along the length direction of the crossbeam perpendicular to the gantry frame 1, and the number of the centering mounting holes 14 in each group is multiple, and the plurality of centering mounting holes 14 are spaced apart along the length direction of the crossbeam of the gantry frame 1, such as Figure 4 As shown, a second lifting bracket 15 is provided in the centering mounting hole 14, and a roller 16 is rotatably provided on the top of the second lifting bracket 15. Specifically, a plurality of connecting frame assemblies are provided on the second lifting bracket 15, and each connecting frame assembly includes two connecting frames arranged opposite to each other. The top brackets of the two connecting frames are fixedly connected with a connecting shaft, and a roller 16 is sleeved on the connecting shaft. The axial direction of the roller 16 is the same as the length direction of the centering mounting hole 14. A second lifting driving source 17 is provided at the bottom of the cutting workbench 5. The second lifting driving source 17 is The output shaft of the power source 17 is connected to the second lifting bracket 15 to drive the second lifting bracket 15 to move up and down; the roller 16 is driven to move up and down by the second lifting driving source 17. When the roller 12 drives the object to be cut to be positioned in the X-axis direction, the first lifting bracket 9 is lowered and the second lifting bracket 15 is lifted, so that the roller 16 contacts the bottom of the object to be cut. Since the axial direction of the roller 16 is the same as the length direction of the centering mounting hole 14, the friction force on the bottom of the object to be cut is reduced when clamping and positioning in the Y-axis direction, thereby ensuring the stability and smoothness of the clamping and positioning.

[0041] On the basis of the above technical solution, the present embodiment can also be improved as follows: a plurality of the centering mounting holes 14 are arranged between two adjacent strip mounting holes 8, and a plurality of the centering mounting holes 14 are arranged, and a plurality of second lifting brackets 15 are arranged correspondingly, so as to be suitable for the production of objects to be cut of different sizes.

[0042] A second lifting drive source 17 is fixedly provided between each of the two adjacent bar-shaped mounting holes 8, and the second lifting drive source 17 is connected to the second lifting bracket 15 between the two adjacent bar-shaped mounting holes 8. The second lifting drive source 17 and the second lifting bracket 15 are independently provided between the two adjacent bar-shaped mounting holes 8 to avoid interference between the second lifting bracket 15 and the first lifting bracket 9, thereby ensuring smooth lifting of the two lifting brackets.

[0043] In the embodiment of the utility model, the side alignment mechanism includes an alignment cylinder 18, and an alignment block 19 for abutting against the side wall of the object to be cut is fixedly provided on the piston rod of the alignment cylinder 18. Preferably, a buffer pad 20 is fixedly provided on the side of the alignment block 19 away from the alignment cylinder 18. The provision of the buffer pad 20 can reduce the impact between the alignment block 19 and the object to be cut, and avoid damage to the side wall of the object to be cut.

[0044] After the object to be cut is transported to the cutting workbench 5, the first lifting drive source 10 drives the first lifting bracket 9 to rise, so that the roller 12 lifts the object to be cut, and then the rotating drive source 13 drives the roller shaft 11 to rotate axially, so that the object to be cut moves toward the limit baffle 7 until it abuts against the limit baffle 7, and then the object to be cut is clamped and positioned by the side positioning mechanism, so that the object to be cut is positioned in the X-axis direction and the Y-axis direction. After the initial position of the laser cutter is set only once, it is only necessary to position the object to be cut to start processing, thereby avoiding the need to reposition the laser cutter for each processing, and avoiding a large amount of manual labor intensity caused by manual positioning, thereby improving processing efficiency, and avoiding scratches on the bottom of the object to be cut during the positioning process, thereby improving the quality of the finished product.

[0045] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting device capable of automatically positioning an object to be cut, characterized in that: The invention comprises a gantry frame (1) and a mounting base (2) arranged below the gantry frame (1); a Z-axis moving mechanism (3) is arranged on the crossbeam of the gantry frame (1); the Z-axis moving mechanism (3) moves back and forth along the length direction of the crossbeam of the gantry frame (1) under the drive of a Y-axis driving mechanism (4); a laser cutter is arranged on the output shaft of the Z-axis moving mechanism (3); a cutting workbench (5) is arranged on the mounting base (2); the cutting workbench (5) moves back and forth along the length direction perpendicular to the crossbeam of the gantry frame (1) under the drive of the workbench driving mechanism; a plurality of top teeth (6) are evenly arranged on the upper surface of the cutting workbench (5); a limit stopper (7) is installed at the tail end of the upper surface of the cutting workbench (5); a plurality of strip-shaped mounting holes (8) are arranged on the upper surface of the cutting workbench (5); the length direction of the strip-shaped mounting holes (8) is the same as the length direction of the crossbeam of the gantry frame (1); and the plurality of top teeth (6) are evenly arranged on the upper surface of the cutting workbench (5); a limit stopper (7) is installed at the tail end of the upper surface of the cutting workbench (5); a plurality of strip-shaped mounting holes (8) are arranged on the upper surface of the cutting workbench (5); and the length direction of the strip-shaped mounting holes (8) is the same as the length direction of the crossbeam of the gantry frame (1). The strip-shaped mounting holes (8) are arranged at intervals along the length direction of the crossbeam perpendicular to the gantry frame (1); a first lifting bracket (9) is provided below the cutting workbench (5); a first lifting drive source (10) is fixedly installed at the bottom of the cutting workbench (5); an output shaft of the first lifting drive source (10) is fixedly connected to the first lifting bracket (9) for driving the first lifting bracket (9) to move up and down; a roller shaft (11) is provided in the strip-shaped mounting hole (8) with an extension direction the same as the length direction of the strip-shaped mounting hole (8); both ends of the roller shaft (11) are rotatably connected to the first lifting bracket (9); a roller (12) is fixedly sleeved on the roller shaft (11); and a rotating drive source (13) for driving the roller shaft (11) to rotate axially is fixedly provided on the first lifting bracket (9); and side alignment mechanisms for clamping and aligning the two sides of the object to be cut are provided on both sides of the cutting workbench (5).

2. A laser cutting device capable of automatically positioning an object to be cut according to claim 1, characterized in that: The upper surface of the cutting workbench (5) is provided with a plurality of groups of centering mounting holes (14) arranged at intervals along the length direction of a crossbeam perpendicular to the gantry frame (1), each group of the centering mounting holes (14) is a plurality of groups, and the plurality of centering mounting holes (14) are arranged at intervals along the length direction of the crossbeam of the gantry frame (1), a second lifting bracket (15) is arranged in the centering mounting hole (14), a roller (16) is rotatably provided at the top of the second lifting bracket (15), and the axial direction of the roller (16) is the same as the length direction of the centering mounting hole (14), and a second lifting drive source (17) is provided at the bottom of the cutting workbench (5), and an output shaft of the second lifting drive source (17) is connected to the second lifting bracket (15) for driving the second lifting bracket (15) to rise and fall.

3. A laser cutting device capable of realizing automatic positioning of an object to be cut according to claim 2, characterized in that: A plurality of centering mounting holes (14) are arranged at intervals between two adjacent strip-shaped mounting holes (8).

4. A laser cutting device capable of realizing automatic positioning of an object to be cut according to claim 3, characterized in that: A second lifting drive source (17) is fixedly provided between two adjacent strip-shaped mounting holes (8), and the second lifting drive source (17) is connected to the second lifting bracket (15) between the two adjacent strip-shaped mounting holes (8).

5. The laser cutting device capable of realizing automatic positioning of the object to be cut according to claim 1, characterized in that: The side alignment mechanism comprises an alignment cylinder (18), and an alignment block (19) for abutting against the side wall of the object to be cut is fixedly provided on the piston rod of the alignment cylinder (18).

6. A laser cutting device capable of realizing automatic positioning of an object to be cut according to claim 5, characterized in that: A buffer pad (20) is fixedly provided on a side of the alignment block (19) away from the alignment cylinder (18).

7. A laser cutting device capable of automatically positioning an object to be cut according to any one of claims 1 to 6, characterized in that: The workbench driving mechanism comprises a workbench guide rail (21) and a workbench bevel rack (22) which are arranged on the mounting base (2) and perpendicular to the length direction of the crossbeam of the gantry frame (1); the cutting workbench (5) is slidably arranged on the workbench guide rail (21); a workbench driving motor (23) and a workbench reducer (24) which are transmission-connected are fixedly arranged on the cutting workbench (5); a workbench driving gear is transmission-connected on the output shaft of the workbench reducer (24); and the workbench driving gear is meshed with the workbench bevel rack (22).

8. The laser cutting device capable of realizing automatic positioning of the object to be cut according to claim 7, characterized in that: An installation groove (25) is provided on the upper surface of the workbench, the workbench drive motor (23) and the workbench reducer (24) are arranged in the installation groove (25), and a cover plate for covering the installation groove (25) is provided at the notch of the installation groove (25).

9. A laser cutting device capable of realizing automatic positioning of an object to be cut according to any one of claims 1 to 6, characterized in that: The number of the first lifting drive sources (10) is multiple, and the multiple first lifting drive sources (10) are evenly arranged at the bottom of the cutting workbench (5), and the output shafts of the multiple first lifting drive sources (10) are fixedly connected to the first lifting bracket (9) for synchronously driving the first lifting bracket (9) to rise and fall.

10. A laser cutting device capable of realizing automatic positioning of an object to be cut according to any one of claims 1 to 6, characterized in that: A plurality of fixing seats (26) are arranged around the periphery of the mounting base (2), and fixing bolt holes are arranged on the fixing seats (26).

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