Frame type thin-wall cross beam of laser cutting machine

Abstract

The utility model relates to a laser cutting machine frame type thin-wall cross beam, which relates to the technical field of cross beams, and comprises a cross beam main body and a sliding plate used for driving the cross beam main body to move, the cross beam main body comprises a bottom plate, side plates, a top plate, a front cover plate, a rear cover plate and a fixed plate arranged on the sliding plate, the fixing plates are used for connecting the bottom plate and the side plates, and a plurality of reinforcing rib plates used for reducing stress concentration are arranged between the top plate and the bottom plate. The cross beam has the effect of improving the stability and rigidity of the cross beam.

Description

Technical Field

[0001] This application relates to the technical field of crossbeams, and more particularly to a frame-type thin-walled crossbeam for a laser cutting machine. Background Art

[0002] At present, a laser cutting machine focuses a high-energy laser beam on the surface of a workpiece, rapidly melting or vaporizing a local area of the workpiece. At the same time, high-pressure gas coaxial with the beam is used to blow away the melted material to form a cut, thereby realizing the cutting of the workpiece material.

[0003] In the prior art, in a laser cutting machine, the crossbeam is an important component of the laser cutting machine. The crossbeam is used to carry the laser cutting head to achieve high-speed movement while ensuring stability through the installation of a motor drive in the laser cutting machine. If it is required that the crossbeam has a higher acceleration under the drive of the motor, it is generally achieved by reducing the self-weight of the crossbeam.

[0004] In view of the above related technologies, when the crossbeam obtained by reducing the self-weight of the crossbeam can achieve a higher acceleration, the reduction of the crossbeam weight will lead to a decrease in the overall rigidity of the crossbeam, resulting in problems such as insufficient stability, poor machining accuracy, or easy deformation. Utility Model Content

[0005] In order to improve the stability and rigidity of the crossbeam, this application provides a frame-type thin-walled crossbeam for a laser cutting machine.

[0006] In a first aspect, the present utility model provides a frame-type thin-walled crossbeam for a laser cutting machine, adopting the following technical solutions:

[0007] A frame-type thin-walled crossbeam for a laser cutting machine includes a crossbeam main body and a slide plate for driving the crossbeam main body to move. The crossbeam main body includes a bottom plate, side plates, a top plate, a front cover plate, a rear cover plate that are connected to each other to form a hollow structure, and a fixing plate disposed on the slide plate. The fixing plate is used to connect the bottom plate and the side plates, and a plurality of reinforcing rib plates for reducing stress concentration are provided between the top plate and the bottom plate.

[0008] By adopting the above technical solutions, the crossbeam main body with a hollow structure is formed by connecting the bottom plate, side plates, top plate, front cover plate, rear cover plate and the fixing plate, and a plurality of reinforcing rib plates are provided between the bottom plate and the top plate, so as to reduce stress concentration of the crossbeam while reducing the weight, making it not easy to deform, and further improving the stability and rigidity of the crossbeam.

[0009] Optionally, the reinforcing rib plates are hollow.

[0010] By adopting the above technical solution, the reinforcing rib plate is set to be hollow, thereby reducing the weight of the cross beam while improving the stability and machining accuracy of the cross beam.

[0011] Optionally, a rhombic steel pipe for enhancing support is arranged on the reinforcing rib plate.

[0012] By adopting the above technical solution, by arranging a rhombic steel pipe on the reinforcing rib plate, the supporting effect generated by the reinforcing rib plate is further improved, and thus the stability and rigidity of the cross beam are enhanced.

[0013] Optionally, a vertical square steel pipe for strengthening the support of the rhombic steel pipe is arranged on the reinforcing rib plate.

[0014] By adopting the above technical solution, by arranging a vertical square steel pipe on the reinforcing rib plate, the supporting effect of the rhombic steel pipe on the reinforcing rib plate is further strengthened, and thus the stability and rigidity of the cross beam are improved.

[0015] Optionally, welding process holes for welding and fixing the reinforcing rib plate are formed in the rear cover plate.

[0016] By adopting the above technical solution, the rear cover plate and the reinforcing rib plate are fixed by welding and fixing through the welding process holes, thereby improving the stability and rigidity of the cross beam.

[0017] Optionally, rectangular strips for strengthening the main structure of the cross beam are arranged on both the bottom plate and the top plate along the length direction.

[0018] By adopting the above technical solution, the stability and rigidity of the main structure of the cross beam can be strengthened by welding the rectangular strips.

[0019] Optionally, the main body of the cross beam includes an installation cover plate and triangular reinforcing ribs. The installation cover plates are located on the left and right sides of the rear cover plate, and the triangular reinforcing ribs are used for strengthening and fixing the rectangular strips, the fixing plate and the installation cover plates.

[0020] By adopting the above technical solution, the rectangular strips, the fixing plate and the installation cover plates can be strengthened and fixed by the installation cover plates and the triangular reinforcing ribs on the main body of the cross beam.

[0021] Optionally, an adjusting pad for adjusting the height is arranged between the sliding plate and the fixing plate. Threaded installation holes for threaded connection are formed on both the fixing plate and the sliding plate, and a through groove is formed on the adjusting pad.

[0022] By adopting the above technical solution, an adjustment pad is arranged between the fixed plate and the sliding plate, and threaded mounting holes are formed on both the fixed plate and the sliding plate, so that it is convenient to install the adjustment pad between the fixed plate and the sliding plate by using bolts, and further, the heights of the left and right ends of the crossbeam main body can be adjusted to be aligned.

[0023] Optionally, a first weight-reducing hole for weight reduction is formed on the triangular reinforcing rib.

[0024] By adopting the above technical solution, by forming a first weight-reducing hole on the triangular reinforcing rib, the weight can be reduced while the stability is enhanced.

[0025] Optionally, on the side of the front cover plate away from the rear cover plate, a main guide rail mounting seat for mounting the main guide rail, a rack mounting seat for mounting the rack, and a sub-guide rail mounting seat for cooperating with the main guide rail mounting seat for installation are provided. A second weight-reducing hole for weight reduction is formed between the main guide rail mounting seat and the rack mounting seat.

[0026] By adopting the above technical solution, by providing a main guide rail mounting seat, a rack mounting seat, and a sub-guide rail mounting seat on the side of the crossbeam main body away from the cover plate, it is convenient to install the main guide rail and the rack for moving the laser cutting head. A second weight-reducing hole is formed on the main guide rail mounting seat, so that the weight can be reduced while ensuring the stability and rigidity of the crossbeam main body.

[0027] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0028] 1. The bottom plate, side plates, top plate, front cover plate, rear cover plate, and fixed plate are connected to form a crossbeam main body with a hollow structure, and a plurality of reinforcing rib plates are arranged between the bottom plate and the top plate, so that while reducing the weight, the stress concentration of the crossbeam is reduced to achieve non-deformation easily, and further, the stability and rigidity of the crossbeam are improved;

[0029] 2. By arranging rhombic steel pipes on the reinforcing rib plates, the supporting effect of the reinforcing rib plates is further improved, and further, the stability and rigidity of the crossbeam are enhanced;

[0030] 3. By arranging vertical square steel pipes on the reinforcing rib plates, the supporting effect of the rhombic steel pipes on the reinforcing rib plates is further strengthened, and further, the stability and rigidity of the crossbeam are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural view of the frame-type thin-walled crossbeam of the laser cutting machine according to the embodiment of the present utility model Figure 1 ;

[0032] Figure 2 is a schematic structural view of the frame-type thin-walled crossbeam of the laser cutting machine according to the embodiment of the present utility model Figure 2 ;

[0033] Figure 3 is an exploded view of the bottom plate, reinforcing rib plate, triangular reinforcing rib, side plate, sliding plate, adjusting pad, rectangular strip, fixing plate, vertical square steel pipe and inclined square steel pipe of the embodiment of the present utility model;

[0034] Figure 4 is Figure 3 a partial enlarged view of part A in

[0035] The names of the parts referred to by each digital label in the above drawings are as follows: 1, crossbeam main body; 2, top plate; 3, bottom plate; 4, side plate; 5, front cover plate; 6, rear cover plate; 7, fixing plate; 8, main guide rail mounting seat; 9, rack mounting seat; 10, auxiliary guide rail mounting seat; 11, mounting and fixing hole; 12, second weight reduction hole; 13, rectangular strip; 14, reinforcing rib plate; 15, inclined square steel pipe; 16, vertical square steel pipe; 17, cavity; 18, welding process hole; 19, sliding plate; 20, mounting groove; 21, assembly hole; 22, countersunk head mounting hole; 23, adjusting pad; 24, threaded mounting hole; 25, through groove; 26, protruding ring; 27, mounting cover plate; 28, triangular reinforcing rib; 29, vertical triangular reinforcing rib; 30, horizontal triangular reinforcing rib; 31, first weight reduction hole. Detailed implementation manners

[0036] The following Figures 1-4 combines with the embodiments to further describe the present utility model in detail.

[0037] Referring to Figure 1 and Figure 2 In an embodiment of the present utility model, a frame-type thin-walled crossbeam for a laser cutting machine is disclosed, which includes a crossbeam main body 1 and a sliding plate 19. The crossbeam main body 1 includes a top plate 2, a bottom plate 3, two side plates 4, a front cover plate 5, a rear cover plate 6, and two fixing plates 7. The top plate 2, the bottom plate 3, two side plates 4, the front cover plate 5, the rear cover plate 6, and two fixing plates 7 are connected to each other to form a structure with a huge cavity inside the crossbeam main body 1. The bottom plate 3 is welded to the fixing plates 7 on the left and right sides and serves as the bottom of the crossbeam main body 1. The two side plates 4 are welded to the sides of the fixing plates 7 away from the bottom plate 3. The top plate 2 is welded to the two side plates 4 and is located above the bottom plate 3. The front cover plate 5 is welded to the two side plates 4. By adopting a welded structure, the weight of the crossbeam main body 1 is greatly reduced, so that the crossbeam main body 1 can obtain a larger acceleration. Holes are provided on both sides of the top plate 2 and the two side plates 4. By welding the crossbeam main body 1 into a hollow structure and providing holes on the top plate 2 and the two side plates 4, the weight of the crossbeam main body 1 is reduced. In this embodiment, the crossbeam main body 1 is made of Q235 structural steel material to improve the strength of the crossbeam main body 1.

[0038] Referring to Figure 1, on the front cover plate 5, a main linear guide mounting seat 8, a rack mounting seat 9, and an auxiliary linear guide mounting seat 10 that cooperates with the main linear guide mounting seat 8 are installed along the length direction. The main linear guide mounting seat 8 and the rack mounting seat 9 are integrally arranged. The front cover plate 5 is welded to the rack mounting seat 9. One side of the main linear guide mounting seat 8 away from the rack mounting seat 9 is welded to the top plate 2. The rack mounting seat 9 is welded to the bottom plate 3 and the fixing plate 7. The main linear guide mounting seat 8, the auxiliary linear guide mounting seat 10, and the rack mounting seat 9 are all provided with mounting and fixing holes 11 along the length direction for installing and fixing the main linear guide and the rack required for the movement of the laser cutting head. The main linear guide mounting seat 8 is provided with a plurality of second weight-reducing holes 12 that are evenly distributed, so as to reduce the weight of the crossbeam main body 1. In this embodiment, in order to make the installation of the main linear guide and the rack more stable, the main linear guide mounting seat 8, the auxiliary linear guide mounting seat 10, and the rack mounting seat 9 are all made of Q345 structural steel material. The second weight-reducing holes 12 are opened at non-functional structures on the main linear guide mounting seat 8 and are in a waist shape. A plurality of mounting and fixing holes 11 are opened and distributed on the main linear guide mounting seat 8, the rack mounting seat 9, and the auxiliary linear guide mounting seat 10, so as to facilitate the installation of the main linear guide and the rack for the movement of the laser cutting head.

[0039] Refer to Figure 2 and Figure 3 , on the sides of the top plate 2 and the bottom plate 3 away from the front cover plate 5 and along the length direction, a rectangular strip 13 for strengthening the structure of the crossbeam main body 1 is welded. A plurality of reinforcing rib plates 14 are welded between the top plate 2 and the bottom plate 3 and are evenly distributed along the length direction of the rectangular strip 13. A groove for welding and fixing the rectangular strip 13 is opened on one side of the reinforcing rib plate 14 close to the rectangular strip 13, so as to be able to perform snap-fixing on the rectangular strip 13. Oblique square steel pipes 15 can be arranged on both sides of the reinforcing rib plate 14, so as to improve the supporting effect of the reinforcing rib plate 14. Vertical square steel pipes 16 are installed on both sides of the oblique square steel pipe 15. The two ends of the oblique square steel pipe 15 are connected end to end with the vertical square steel pipes 16 on both sides, so as to further strengthen the supporting effect of the oblique square steel pipe 15 on the reinforcing rib plate 14, and the number of the reinforcing rib plates 14 installed with the oblique square steel pipe 15 and the vertical square steel pipe 16 is determined according to the length of the crossbeam main body 1. By installing a plurality of reinforcing rib plates 14, the interior of the crossbeam main body 1 is divided into a plurality of cavities 17, so as to reduce the stress concentration of the crossbeam main body 1 and further improve the stability and rigidity of the crossbeam main body 1, and by installing the vertical square steel pipe 16 and the oblique square steel pipe 15, the supporting effect on the reinforcing rib plate 14 is further improved. In this embodiment, only the reinforcing rib plates 14 at both sides and the middle position inside the crossbeam main body 1 are welded with the vertical square steel pipe 16 and the oblique square steel pipe 15.

[0040] Refer to Figure 2, the rear cover plate 6 is located on the side of the bottom plate 3 away from the front cover plate 5 and is welded to the two rectangular strips 13. A number of welding process holes 18 for fixing the reinforcing rib plates 14 are provided on the rear cover plate 6, and the number of columns of the welding process holes 18 is the same as the number of the reinforcing rib plates 14 inside the crossbeam main body 1. The rear cover plate 6 and the reinforcing rib plates 14 are welded and fixed through the welding process holes 18. In this embodiment, the width of the welding process holes 18 is equal to that of the reinforcing rib plates 14, and three welding process holes 18 are provided in each column.

[0041] Refer to Figure 2 and Figure 4 , on the side of the slide plate 19 close to the crossbeam main body 1, an installation groove 20 and assembly holes 21 for fixing the motor are provided. The slide plates 19 are located on the left and right sides below the bottom plate 3. Countersunk installation holes 22 for connecting and fixing the guide rail sliders on the laser cutting machine body guide rail are provided on the slide plates 19, so that the crossbeam main body 1 can move along with the guide rail sliders on the bed guide rail of the laser cutting machine. In this embodiment, the installation groove 20 is rectangular, and a number of assembly holes 21 are uniformly distributed around the bottom of the installation groove 20.

[0042] Refer to Figure 2 and Figure 4, when the span in the length direction of the crossbeam main body 1 is relatively large, there is a situation where the heights at both ends in the length direction of the crossbeam main body 1 are different, resulting in a slight inclination of the crossbeam main body 1, which leads to poor machining accuracy and reduces the service life of the crossbeam main body 1. Therefore, an adjusting pad 23 for adjusting the heights at both ends in the length direction of the crossbeam main body 1 is installed between the slide plate 19 and the fixed plate 7. Threaded mounting holes 24 for connecting and fixing with the slide plate 19 are provided on the fixed plate 7. A through groove 25 is provided on the adjusting pad 23, which facilitates the installation of the adjusting pad 23 between the fixed plate 7 and the slide plate 19. The fixed plate 7 and the slide plate 19 are threadedly connected and fixed through bolts passing through the through groove 25. By changing the thickness of the adjusting pad 23, the heights at both ends in the length direction of the crossbeam main body 1 are aligned, effectively avoiding the inclination of the crossbeam main body 1 and ensuring the accuracy and reliability of the installation of the crossbeam main body 1, thereby further improving the machining accuracy and service life. In this embodiment, the threaded mounting holes 24 on the fixed plate 7 are counterbore holes, and the length of the fixed plate 7 is longer than the width of the side plate 4. One side of the fixed plate 7 is aligned with the front cover plate 5. Three adjusting pads 23 are symmetrically installed on both the left and right sides of the crossbeam main body 1. And two adjusting pads 23 of the same size are symmetrically installed below the side plate 4 installed on the fixed plate 7. The through grooves 25 on the two symmetric adjusting pads 23 both penetrate to the side close to the center of the fixed plate 7. A protruding ring 26 is provided on the side of the two symmetric adjusting pads 23 away from the center of the fixed plate 7; One adjusting pad 23 is installed below the protruding part of the fixed block, and a protruding ring 26 is provided on one side of the single adjusting pad 23. The through groove 25 on the other side of the single adjusting pad 23 penetrates towards the side away from the protruding ring 26. A hole for fixing is provided between the protruding ring 26 and the adjusting pad 23.

[0043] Refer to Figure 2 and Figure 3 , the mounting cover plates 27 are welded to the left and right sides of the rear cover plate 6. The triangular reinforcing ribs 28 are divided into vertical triangular reinforcing ribs 29 and horizontal triangular reinforcing ribs 30. The two sides of the vertical triangular reinforcing rib 29 are respectively welded to the fixed plate 7 and the mounting cover plate 27, thereby strengthening and fixing the fixed plate 7, the mounting cover plate 27 and the rectangular strip 13. The two sides of the horizontal triangular reinforcing rib 30 are respectively welded to the vertical triangular reinforcing rib 29 and the rectangular strip 13, thereby strengthening the stability between the crossbeam main body 1 and the fixed plate 7. First weight-reducing holes 31 for reducing weight are provided on both the vertical triangular reinforcing rib 29 and the horizontal triangular reinforcing rib 30. The first weight-reducing holes 31 are reduced in proportion to the shape of the triangular reinforcing rib 28, thereby reducing the weight of the triangular reinforcing rib 28. In this embodiment, the vertical triangular reinforcing rib 29 and the horizontal triangular reinforcing rib 30 are right-angled triangles. Two vertical triangular reinforcing ribs 29 are welded on both the left and right sides of the mounting cover plate 27, and are welded to the mounting cover plate 27 and the fixed plate 7 respectively through the two right-angled sides, thereby reducing the weight while ensuring the function of the triangular reinforcing rib 28.

[0044] The installation process of a frame - type thin - wall cross - beam of a laser cutting machine in an embodiment of the present utility model is as follows:

[0045] 1. Install two fixing plates 7 on the left and right sides of the bottom plate 3. And on the upper side of the two fixing plates 7, away from one side of the bottom plate 3, they are respectively welded to the two side plates 4 as a basis. Then weld the top plate 2 on the side of the two side plates 4 away from the bottom plate 3. Then weld two rectangular strips 13 on one side of the top plate 2 and the bottom plate 3 along the length direction, and weld them to the fixing plates 7. Then evenly distribute a number of reinforcing rib plates 14 between the bottom plate 3 and the top plate 2. And vertically arranged square steel pipes 16 and inclined square steel pipes 15 connected end - to - end are welded on the left and right sides and in the middle of the reinforcing rib plates 14 inside the cross - beam main body 1. Then install the rear cover plate 6 between the two rectangular strips 13, and weld and fix it to the reinforcing rib plate 14 through the welding process holes 18, and also weld and fix the rear cover plate 6 to the two rectangular strips 13. Weld the main guide rail mounting seat 8 to the top plate 2 and the two side plates 4. Then weld the front cover plate 5 to the side of the main guide rail mounting seat 8 close to the rack mounting seat 9 and the two side plates 4. Then weld the side of the auxiliary guide rail mounting seat 10 that cooperates with the main guide rail mounting seat 8 to the front cover plate 5, and weld the auxiliary guide rail mounting seat 10 to the two side plates 4 and the two fixing plates 7, thus forming the cross - beam main body 1;

[0046] 2. Place the fixing plate 7 on the cross - beam main body 1 on the slide plate 19. According to the inclination situation existing in the length direction of the cross - beam main body 1, select the thickness of the adjusting pad 23. Place the selected adjusting pad 23 on the slide plate 19, and the through - slots 25 on the adjusting pad 23 correspond to the threaded mounting holes 24 on the slide plate 19 and the fixing plate 7. Pass the bolt through the threaded mounting hole 24 on the fixing plate 7, then through the through - slot 25 on the adjusting pad 23, and then connect it to the threaded mounting hole 24 on the slide plate 19, thereby fixing the slide plate 19, the fixing plate 7, and the adjusting pad 23;

[0047] 3. Weld two vertical triangular reinforcing ribs 29 between the mounting cover plate 27 and the fixing plate 7, and symmetrically weld two vertical triangular reinforcing ribs 29 on the two side mounting cover plates 27. Then horizontally weld the horizontal triangular reinforcing rib 30 between the vertical triangular reinforcing rib 29 close to the center of the cross - beam main body 1 and the rectangular strip 13.

[0048] The above - mentioned is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above - mentioned embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A frame-type thin-walled crossbeam for a laser cutting machine, characterized in that: It includes a crossbeam main body (1) and a slide plate (19) for driving the crossbeam main body (1) to move. The crossbeam main body (1) includes a bottom plate (3), side plates (4), a top plate (2), a front cover plate (5), a rear cover plate (6) that are interconnected to form a hollow structure, and a fixing plate (7) disposed on the slide plate (19). The fixing plate (7) is used to connect the bottom plate (3) and the side plates (4). A plurality of reinforcing rib plates (14) for reducing stress concentration are provided between the top plate (2) and the bottom plate (3).

2. The frame type thin-wall crossbeam of the laser cutting machine according to claim 1, wherein: The reinforcing rib plate (14) is hollowly arranged.

3. The laser cutting machine frame type thin-walled cross beam according to claim 2, wherein: An obliquely square steel pipe (15) for enhancing support is provided on the reinforcing rib plate (14).

4. The frame type thin-wall cross beam of the laser cutting machine according to claim 3, characterized in that: A vertical square steel pipe (16) for enhancing the support of the obliquely square steel pipe (15) is provided on the reinforcing rib plate (14).

5. The frame-type thin-walled crossbeam of the laser cutting machine according to claim 1, wherein: A welding process hole (18) for welding and fixing the reinforcing rib plate (14) is formed on the rear cover plate (6).

6. The frame type thin-walled cross beam of the laser cutting machine according to claim 1, wherein: Rectangular strips (13) for strengthening the structure of the crossbeam main body (1) are provided along the length direction on both the bottom plate (3) and the top plate (2).

7. The frame type thin-walled crossbeam of the laser cutting machine according to claim 6, wherein: The crossbeam main body (1) includes a mounting cover plate (27) and triangular reinforcing ribs (28). The mounting cover plate (27) is located on the left and right sides of the rear cover plate (6). The triangular reinforcing ribs (28) are used to strengthen and fix the rectangular strips (13), the fixing plate (7), and the mounting cover plate (27).

8. The frame type thin-wall cross beam of the laser cutting machine according to claim 1, wherein: An adjusting pad (23) for adjusting the height is provided between the slide plate (19) and the fixing plate (7). Threaded mounting holes (24) for threaded connection are formed on both the fixing plate (7) and the slide plate (19). A through slot (25) is formed on the adjusting pad (23).

9. The frame type thin-walled cross beam of the laser cutting machine according to claim 7, wherein: A first weight-reducing hole (31) for weight reduction is formed on the triangular reinforcing rib (28).

10. The frame type thin-walled cross beam of a laser cutting machine according to claim 1, characterized in that: On the side of the front cover plate (5) away from the rear cover plate (6), a main rail mounting seat (8) for main rail installation, a rack mounting seat (9) for rack installation, and a sub-rail mounting seat (10) for cooperating with the main rail mounting seat (8) for installation are provided. A second weight-reducing hole (12) for reducing weight is formed between the main rail mounting seat (8) and the rack mounting seat (9).

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