Floor rail type high performance laser cutting machine

Abstract

The utility model relates to the field of laser cutting machine especially relates to a ground rail type high -performance laser cutting machine. The utility model discloses the edge leg spare of one end of crossbeam adopts the adaptive X -axis floating type structure setting, utilizes the one end of crossbeam to be able to adaptively float on X -axis, to solve because the parallelism and straightness difference of ground rail bed body double Y -axis cannot complete the problem of high -speed operation, even if the bed body is deformed because foundation, ground rail is deformed, and the deformation such as impact leads to double Y guide rail parallelism to deteriorate can guarantee equipment high -speed operation.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machines, and in particular to a ground-rail type high-performance laser cutting machine. Background Technology

[0002] Laser cutting machines primarily utilize high-power-density laser beams to irradiate materials, causing them to rapidly melt, vaporize, or reach their ignition point. Simultaneously, a high-speed airflow removes the molten material, thus achieving cutting. With the development of laser cutting technology, its applications are becoming increasingly widespread in fields such as power batteries and aerospace. However, the requirements for the precision and stability of laser cutting machines are also becoming increasingly stringent.

[0003] Existing ground-rail laser cutting machines have the following shortcomings:

[0004] The ground-rail laser cutting machine has a spliced ​​bed, which results in poor bed stability. During use, the bed is prone to deformation, leading to low parallelism of the double Y guide rails and low equipment operating speed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model, which adopts the following technical solution:

[0006] A ground-rail type high-performance laser cutting machine includes a ground rail, a crossbeam, and a laser cutting assembly. Side leg component one and side leg component two are respectively installed at both ends of the crossbeam. A Y-axis drive component is installed on both side leg components. Side leg component one slides along the length of the crossbeam and is fitted with a spring between the two.

[0007] In one optimized embodiment of this application, a baffle and an X-axis short guide rail are installed on the top of the side leg component one, and a baffle and an X-axis short slider are installed on the bottom of the crossbeam. The X-axis short slider and the X-axis short guide rail are slidably engaged. A spring is arranged between the baffle and the baffle, and a connecting piece is inserted inside the spring. The connecting piece passes through the baffle and the spring and is threadedly connected to the baffle.

[0008] In one optimized embodiment of this application, an upper X-axis guide rail and an X-axis helical rack are installed on the top of the crossbeam, and a lower X-axis guide rail is installed on the front side of the crossbeam.

[0009] The laser cutting assembly includes an upper X-axis slider and a lower X-axis slider. The upper X-axis slider is slidably fitted on the upper X-axis guide rail, and the lower X-axis slider is slidably fitted on the lower X-axis guide rail.

[0010] Mounting brackets are installed on the upper and lower sliders of the X-axis. The mounting brackets are equipped with Z-axis drive components, X-axis servo motors, X-axis felt gears, and laser cutting parts. The Z-axis drive components drive the laser cutting parts to move up and down. The output end of the X-axis servo motor is equipped with an X-axis drive gear. The X-axis drive gear, X-axis felt gear, and X-axis helical rack mesh with each other.

[0011] In one optimized embodiment of this application, the Z-axis drive component includes a Z-axis servo motor, a Z-axis rack, a Z-axis guide rail, and a load plate. A Z-axis drive gear is installed at the output end of the Z-axis servo motor. The Z-axis drive gear and the Z-axis rack mesh with each other. A Z-axis slider is slidably fitted on the load plate. The Z-axis slider is slidably fitted on the Z-axis guide rail. The load plate is used to mount the laser-cut parts.

[0012] In one optimized embodiment of this application, a Y-axis helical rack and a Y-axis guide rail are installed on the ground rail. The Y-axis drive component includes a Y-axis servo motor and a Y-axis felt gear. A Y-axis drive gear is installed at the output end of the Y-axis servo motor. The Y-axis drive gear, the Y-axis felt gear, and the Y-axis helical rack mesh with each other.

[0013] In one optimized embodiment of this application, the crossbeam includes a central circular tube located on the inner side and a steel plate circumferentially welded to the outer side of the central circular tube.

[0014] In one optimized embodiment of this application, two sets of hard limiting blocks are arranged on the top of the crossbeam.

[0015] In one optimized embodiment of this application, the two ends of the ground rail are each connected by a transverse connecting pipe to form a closed structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model adopts an adaptive X-axis floating structure for the side leg at one end of the crossbeam. By utilizing the adaptive floating of one end of the crossbeam on the X-axis, it solves the problem of high-speed operation caused by the difference in parallelism and straightness of the double Y-axis of the bed. Even if the parallelism of the double Y guide rails deteriorates due to foundation deformation, thermal deformation of the ground rail, or deformation caused by impact, the high-speed operation of the equipment can still be guaranteed.

[0018] 2. Although the bed of this utility model is a spliced ​​bed, there are transverse connecting pipes at the front and rear of the bed. The transverse connecting pipes provide assembly reference surfaces and parallelism references, ensuring the splicing accuracy and stability of the bed. In addition, the ground rail is a box-type plate welded ground rail that has undergone aging treatment such as tempering and shot blasting to ensure the stability of the ground rail structure. It will not deform due to long-term use or heat, thus affecting the accuracy of the bed.

[0019] 3. The crossbeam of this utility model is made of an inner circular tube and an outer high-strength Q345 plate welded together. The circular structure of the circular tube can ensure the transverse and longitudinal strength of the crossbeam, and the outer high-strength Q345 plate increases the cross-section of the crossbeam, thereby further improving the strength of the crossbeam.

[0020] 4. The Z-axis of this utility model is a reinforced structure made of cast aluminum. The ball screw drive is replaced by a gear and rack drive instead of a module, which improves the structural strength and operational stability of the Z-axis. Attached Figure Description

[0021] Figure 1 , Figure 2 These are schematic diagrams of the overall structure of this utility model from two different perspectives.

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0024] Figure 5 , Figure 6 These are schematic diagrams of the side leg component from two different perspectives;

[0025] Figure 7 This is a schematic diagram of the laser cutting assembly.

[0026] Figure 8 This is a structural diagram of the mounting bracket (without the load plate installed);

[0027] Figure 9 This is a rear view of the mounting bracket;

[0028] Figure 10 This is a schematic diagram of the overall structure of the crossbeam;

[0029] Figure 11 This is a schematic diagram of the structure of the horizontal connecting pipe;

[0030] Figure 12 This is a partial structural diagram of the end of the horizontal connection.

[0031] In the diagram: 10. Ground rail; 11. Y-axis helical rack; 12. Y-axis guide rail; 13. Horizontal connecting pipe; 20. Crossbeam; 21. Side leg component one; 211. Baffle one; 212. X-axis short guide rail; 213. Baffle two; 214. X-axis short slider; 215. Spring; 216. Connector; 22. Side leg component two; 23. Y-axis drive component; 231. Y-axis servo motor; 232. Y-axis felt gear; 233. Y-axis drive gear; 24. X-axis lower guide rail; 25. 26. X-axis helical rack; 27. Hard limit block; 28. X-axis upper guide rail; 39. Laser cutting assembly; 30. X-axis upper slider; 31. X-axis lower slider; 32. Mounting bracket; 33. Z-axis drive component; 34. Z-axis servo motor; 34. Z-axis rack; 34. Z-axis guide rail; 34. Load plate; 34. Z-axis drive gear; 34. Z-axis slider; 35. X-axis servo motor; 36. X-axis felt gear; 37. Laser-cut part; 38. X-axis drive gear. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Example 1

[0034] like Figures 1-2 , Figure 10 As shown, a ground-rail type high-performance laser cutting machine includes a ground rail 10, a crossbeam 20 and a laser cutting assembly 30. The two ends of the crossbeam 20 are respectively equipped with side leg component 1 21 and side leg component 22. Both side leg components are equipped with Y-axis drive components 23. Side leg component 1 21 slides along the length direction of the crossbeam 20 and is slidably fitted on the crossbeam 20, and a spring 215 is arranged between the two.

[0035] During implementation, the Y-axis drive component 23 drives the crossbeam 20 to run along the Y-axis direction. The position of the laser cutting assembly 30 on the crossbeam 20 is adjustable in the Z-axis and X-axis directions. When the parallelism of the guide rail on the Y-axis deteriorates, the side leg component 21 can make a short-distance adjustment on the X-axis. The spring 215 completes the adaptive floating effect, thereby achieving high-speed performance with high acceleration, high running speed, and high precision.

[0036] Example 2

[0037] In the laser cutting machine, such as Figure 3 , 5As shown in Figure 6, the top of the side leg component 21 is equipped with a baffle 211 and an X-axis short guide rail 212, and the bottom of the crossbeam 20 is equipped with a baffle 213 and an X-axis short slider 214. The X-axis short slider 214 and the X-axis short guide rail 212 are in sliding engagement. The spring 215 is arranged between the baffle 211 and the baffle 213, and a connector 216 is inserted inside the spring 215. The connector 216 passes through the baffle 211 and the spring 215 and is threadedly connected to the baffle 213.

[0038] In practical implementation, when the parallelism of the Y-axis guide rail deteriorates, one end of the crossbeam 20 slides laterally along the X-axis along the length of the X-axis short guide rail 212 using the X-axis short slider 214. Even if the parallelism of the Y-axis guide rail deteriorates, the spring 215 between the first baffle 211 and the second baffle 213 completes the adaptive floating in the X-axis direction. Of course, the initial preload can be controlled by controlling the distance between the first baffle 211 and the second baffle 213.

[0039] Example 3

[0040] In the laser cutting machine, such as Figure 5 As shown, the top of the crossbeam 20 is equipped with an upper X-axis guide rail 27 and an X-axis helical rack 25, and the front side of the crossbeam 20 is equipped with a lower X-axis guide rail 24.

[0041] like Figures 7-9 As shown, the laser cutting assembly 30 includes an upper X-axis slider 31 and a lower X-axis slider 32. The upper X-axis slider 31 is slidably engaged on the upper X-axis guide rail 27, and the lower X-axis slider 32 is slidably engaged on the lower X-axis guide rail 24.

[0042] Mounting brackets 33 are installed on the upper X-axis slider 31 and the lower X-axis slider 32. Mounting brackets 33 are equipped with Z-axis drive component 34, X-axis servo motor 35, X-axis felt gear 36 and laser cutting component 37. Z-axis drive component 34 (servo motor) drives laser cutting component 37 to move up and down. X-axis drive gear 38 is installed at the output end of X-axis servo motor 35. X-axis drive gear 38, X-axis felt gear 36 and X-axis helical rack 25 mesh with each other.

[0043] The Z-axis drive unit 34 includes a Z-axis servo motor 341, a Z-axis rack 342, a Z-axis guide rail 343, and a load plate 344. A Z-axis drive gear 345 is installed at the output end of the Z-axis servo motor 341. The Z-axis drive gear 345 and the Z-axis rack 342 mesh with each other. A Z-axis slider 346 is slidably fitted on the load plate 344. The Z-axis slider 346 is slidably fitted on the Z-axis guide rail 343. The load plate 344 is used to install the laser-cut part 37.

[0044] In practical implementation, two sets of upper and lower guide rails, in conjunction with the X-axis servo motor 35, are used to ensure the stable operation of the laser-cut part 37 on the X-axis. Existing laser cutting machines use a standard aluminum profile Z-axis module, which has poor strength. During high-speed operation, the cutting head wobbles due to insufficient Z-axis strength, affecting cutting accuracy. This is especially problematic when the Z-axis requires a cutting head swing axis, resulting in a greater load on the Z-axis and preventing high-speed, high-acceleration operation. In this embodiment, the Z-axis is replaced with a reinforced cast aluminum structure. The ball screw drive of the module is replaced with a rack and pinion drive. The two sets of 20mm linear guide rails of the module are replaced with three sets of 25mm linear guide rails. The extruded aluminum Z-axis load plate is replaced with a thickened cast aluminum load plate.

[0045] Traditional module drives use ball screws. The transmission principle involves a motor driving the screw to rotate, which in turn moves the screw nut up or down. The screw nut contains balls that convert sliding friction into rolling friction. However, due to space constraints in the module, the ball screw cannot be too large, resulting in weak transmission rigidity and a small force-bearing area, which cannot meet the strength requirements for high acceleration. This is the fundamental reason for low Z-axis acceleration. Even with sufficient space, using a large-sized ball screw would be too costly. Therefore, the maximum acceleration of a traditional module (ball screw) is only 1.5G. However, the gear and rack Z-axis module in this solution uses a reducer to directly drive the gears, which in turn move the rack up and down. Because the structure is entirely rigid, it can withstand greater forces without deformation, thus achieving an acceleration of 3.0G, enabling high-speed, high-acceleration operation.

[0046] Example 4

[0047] In the laser cutting machine, such as Figure 3 , Figure 6 As shown, to achieve stable high-speed linear operation, a Y-axis helical rack 11 and a Y-axis guide rail 12 are installed on the ground rail 10. A Y-axis slider is slidably fitted on the Y-axis guide rail 12. The Y-axis slider is installed at the bottom of the corresponding side leg. The Y-axis drive component 23 includes a Y-axis servo motor 231 and a Y-axis felt gear 232. A Y-axis drive gear 233 is installed at the output end of the Y-axis servo motor 231. The Y-axis drive gear 233, the Y-axis felt gear 232, and the Y-axis helical rack 11 mesh with each other. The Y-axis servo motor 231 drives the Y-axis drive gear 233 and cooperates with the Y-axis felt gear 232 to run along the length direction of the Y-axis helical rack 11.

[0048] Example 5

[0049] In the laser cutting machine, the crossbeam 20 includes a central circular tube located on the inner side and a steel plate welded circumferentially to the outer side of the central circular tube. The circular structure of the central circular tube ensures the transverse and longitudinal strength of the crossbeam, while the high-strength Q345 plate on the outside increases the cross-section of the crossbeam 20, thereby further improving the strength of the crossbeam 20.

[0050] Example 6

[0051] In the laser cutting machine, such as Figure 4 As shown, the top of the crossbeam 20 is provided with two sets of hard limit blocks 26 to control the two extreme positions of the laser-cut part 37.

[0052] Example 7

[0053] In the laser cutting machine, such as Figure 1 , Figure 2 As shown, both ends of the ground rail 10 form a closed structure via transverse connecting pipes 13. When assembling the two ground rails along the Y-axis of the bed, a transverse connecting pipe 13 is used at both the front and rear to fix them, forming a closed structure. The connecting surface of the transverse connecting pipe 13 serves as the machining reference surface, ensuring the parallelism of the ground rails along the dual Y-axis. To ensure the stability of the ground rail 10, the feet of the ground rail 10 are located on both sides laterally. The ground rail 10 has a box-type plate structure with internal reinforcing ribs and undergoes aging treatments such as tempering and shot blasting to ensure the stability of the ground rail 10 structure.

[0054] like Figure 11 and Figure 12 As shown, the transverse connecting pipe 13 plays a crucial positioning role when connecting the double Y-shaped floor rails. Firstly, it ensures the parallelism of the double Y-shaped floor rails after installation by connecting the two end faces to them. Secondly, two other critical surfaces are the mounting surfaces and abutment surfaces (A1, A2) of the guide rail and rack. During installation, the mounting surfaces and abutment surfaces (A1, A2) of the guide rail and rack of the floor rails must be completely aligned with the mounting surfaces and abutment surfaces (A1, A2) of the guide rail and rack of the transverse connecting pipe 13 to ensure the parallelism and levelness of the double Y-shaped floor rails. This ensures the guide rails are on the same horizontal line.

[0055] The beneficial effects of this technical solution are as follows:

[0056] 1. Increase the reference point during bed assembly to ensure bed assembly accuracy.

[0057] 2. The box-type plate welded structure of the ground rail improves the stability of the ground rail bed.

[0058] 3. Improve the strength and stability of the crossbeam.

[0059] 4. The adaptive structural beam ensures that the equipment can still operate at high performance even if the parallelism of the double Y-axis guide rails of the bed deteriorates.

[0060] 5. Improve the structural strength and operational stability of the Z-axis.

[0061] The above-mentioned beneficial effects enable the equipment to achieve high-speed performance with high acceleration, high operating speed, and high precision.

[0062] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A ground-rail type high-performance laser cutting machine, comprising a ground rail (10), a crossbeam (20), and a laser cutting assembly (30), characterized in that, The two ends of the crossbeam (20) are respectively equipped with side leg component one (21) and side leg component two (22). Both side leg components are equipped with Y-axis drive component (23). Side leg component one (21) slides along the length of the crossbeam (20) and is fitted with a spring (215) between them.

2. The ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, The top of the side leg component 1 (21) is equipped with a baffle 1 (211) and an X-axis short guide rail (212), and the bottom of the crossbeam (20) is equipped with a baffle 2 (213) and an X-axis short slider (214). The X-axis short slider (214) and the X-axis short guide rail (212) are slidably engaged. The spring (215) is arranged between the baffle 1 (211) and the baffle 2 (213), and a connector (216) is inserted inside the spring (215). The connector (216) passes through the baffle 1 (211) and the spring (215) and is threadedly connected to the baffle 2 (213).

3. The ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, The top of the crossbeam (20) is equipped with an upper X-axis guide rail (27) and an X-axis helical rack (25), and the front side of the crossbeam (20) is equipped with a lower X-axis guide rail (24). The laser cutting assembly (30) includes an upper X-axis slider (31) and a lower X-axis slider (32). The upper X-axis slider (31) is slidably fitted on the upper X-axis guide rail (27), and the lower X-axis slider (32) is slidably fitted on the lower X-axis guide rail (24). Mounting brackets (33) are installed on the upper slider (31) and lower slider (32) of the X-axis. Mounting brackets (33) are equipped with Z-axis drive components (34), X-axis servo motors (35), X-axis felt gears (36) and laser cutting components (37). Z-axis drive components (34) drive laser cutting components (37) to move up and down. X-axis drive gears (38) are installed at the output end of X-axis servo motors (35). X-axis drive gears (38), X-axis felt gears (36) and X-axis helical racks (25) mesh with each other.

4. A ground-rail type high-performance laser cutting machine according to claim 3, characterized in that, The Z-axis drive unit (34) includes a Z-axis servo motor (341), a Z-axis rack (342), a Z-axis guide rail (343), and a load plate (344). The output end of the Z-axis servo motor (341) is equipped with a Z-axis drive gear (345), which meshes with the Z-axis rack (342). A Z-axis slider (346) is slidably fitted on the load plate (344), which is slidably fitted on the Z-axis guide rail (343). The load plate (344) is used to install the laser-cut part (37).

5. A ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, The ground rail (10) is equipped with a Y-axis helical rack (11) and a Y-axis guide rail (12). The Y-axis drive component (23) includes a Y-axis servo motor (231) and a Y-axis felt gear (232). The output end of the Y-axis servo motor (231) is equipped with a Y-axis drive gear (233). The Y-axis drive gear (233), the Y-axis felt gear (232) and the Y-axis helical rack (11) mesh with each other.

6. A ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, The crossbeam (20) includes a central circular tube located on the inner side and a steel plate welded circumferentially to the outer side of the central circular tube.

7. A ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, Two sets of hard limit blocks (26) are arranged on the top of the crossbeam (20).

8. A ground-rail type high-performance laser cutting machine according to claim 1, characterized in that, The two ends of the ground rail (10) are each connected by a transverse connecting pipe (13) to form a closed structure.

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