Water-guided laser processing device and method

Abstract

The invention belongs to the technical field of laser processing, and discloses a water-guided laser processing device and method.The water-guided laser processing device comprises a tray, a plurality of first sliding holes are formed in the top of the tray, a lifting assembly is installed below the tray, stepping motors are fixedly connected to the inner walls of the first sliding holes, and the output ends of the stepping motors are fixedly connected with connecting shafts; the ends of the connecting shafts are rotationally connected with screws, the lifting assemblies are used for driving the screws to rotate with the connecting shafts as the centers, limiting grooves are formed in the two sides of the inner wall of the first sliding hole, clamping arms are arranged on the inner wall of the first sliding hole, and elastic sliding assemblies are installed on the two sides of the clamping arms. The elastic sliding assembly can slide along the inner wall of the limiting groove. By changing the clamping height of the workpiece, the clamping device can adapt to clamping use of workpieces with different heights and sizes, so that the workpiece is more stably mounted, and the accuracy and safety in the machining process are improved.

Description

Technical Field

[0001] The present invention relates to the field of laser processing, and more particularly, to a water-guided laser processing device and method. Background Art

[0002] The water-guided laser processing equipment is a special processing equipment in laser technology. Its core principle is to use water as a light guiding medium to transmit laser. Water has high transparency and low loss characteristics for lasers with specific wavelengths, so that the laser can propagate along a specific path in water, similar to the principle of optical fiber light guiding. At the same time, the high specific heat capacity of water enables it to quickly absorb and dissipate heat during laser processing, effectively reducing the thermal influence range of the processing area and effectively preventing problems such as deformation or microcracks of the material due to high temperature.

[0003] When the current water-guided laser processing device processes a workpiece, the first step is to firmly fix the workpiece. However, the existing clamping method relies on cylinder operation, and this design lacks the ability to flexibly adjust the height of the clamping point according to the actual height of the workpiece. Therefore, when facing a relatively high workpiece, using this fixing method often cannot ensure sufficient stability, affecting the accuracy and safety of the processing process. In view of this, we propose a water-guided laser processing device and method. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, this application proposes a water-guided laser processing device and method. By changing the clamping height of the workpiece, it can adapt to workpieces with different height dimensions for clamping use, thereby making the installation of the workpiece more stable and improving the accuracy and safety of the processing process.

[0005] To solve the above technical problems, the present invention proposes a water-guided laser processing device, including a tray. A plurality of first sliding holes are opened at the top of the tray, and a lifting component is installed below the tray;

[0006] Stepping motors are fixedly connected to the inner walls of the first sliding holes. The output ends of the stepping motors are fixedly connected to connecting shafts, and the ends of the connecting shafts are rotatably connected to screw rods. The lifting component is used to drive the screw rods to rotate around the connecting shafts;

[0007] Limiting grooves are opened on both sides of the inner walls of the first sliding holes. Clamping arms are arranged on the inner walls of the first sliding holes. Elastic sliding components are installed on both sides of the clamping arms. The elastic sliding components can slide along the inner walls of the limiting grooves. Mounting holes are opened on the outer walls of the clamping arms, and threaded sleeves are rotatably connected to the inner walls of the mounting holes. The inner walls of the threaded sleeves are threadedly connected to the screw rods.

[0008] Preferably, the lifting assembly includes a cylinder, the cylinder is installed below the tray, a fixed disk is fixedly connected to the output end of the cylinder, and a plurality of support rods are fixedly connected to the top of the fixed disk.

[0009] Preferably, a plurality of second sliding holes are formed in the bottom of the tray, and the ends of the support rods all penetrate through the second sliding holes and are slidably connected thereto.

[0010] Preferably, rotating shafts are fixedly connected to the inner walls of the support rods, connecting blocks are rotatably connected to the circumferential outer walls of the rotating shafts, mounting sleeves are fixedly connected to the tops of the connecting blocks, rotating sleeves are rotatably connected to the inner walls of the mounting sleeves, and the rotating sleeves are slidably connected to the outer wall of the screw rod.

[0011] Preferably, grooves are formed on both sides of the clamping arm, the elastic sliding assembly includes a sliding rod, the end of the sliding rod is fixedly connected to the inner wall of the groove, a spring is sleeved on the outer wall of the sliding rod, a slider is sleeved on the outer wall of the sliding rod, a limiting block is fixedly connected to the outer wall of the slider, and the limiting block is slidably connected to the inner wall of the limiting groove.

[0012] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the clamping arm.

[0013] Preferably, it further includes a support base, two first linear guides are fixedly connected to the top of the support base, support plates are fixedly connected to the sliding parts of the first linear guides, the bottom of the tray is fixedly connected to the top of the support base, and the cylinder is fixedly connected to the bottom of the support base.

[0014] Preferably, a second linear guide is fixedly connected between the two support plates, and a third linear guide is fixedly connected to the outer wall of the sliding part of the second linear guide.

[0015] Preferably, a mounting frame is fixedly connected to the sliding part of the outer wall of the third linear guide, a laser emitting head is fixedly connected to the outer wall of the mounting frame, a laser emitter is fixedly connected to the outer wall of the mounting frame, a reflection assembly is fixedly connected to the outer wall of the mounting frame, the reflection assembly is composed of a reflecting mirror and a refracting mirror, and the reflection assembly is used for focusing the laser beam.

[0016] A method for a water-guided laser processing device includes the following steps:

[0017] S1. Place the workpiece on the top of the tray. According to the height of the workpiece, the cylinder drives the fixed disk to move, the fixed disk drives the support rods to move, the support rods slide along the inner wall of the second sliding holes, the support rods drive the connecting blocks to move, the connecting blocks drive the rotating sleeves to move through the mounting sleeves. At this time, the screw rod rotates around the connecting shaft, and the rotating sleeve slides along the outer wall of the screw rod;

[0018] S2. When the screw rotates, it drives the clamping arm to move through the threaded sleeve. When the clamping arm moves, the limiting block is limited by the limiting groove, and the slider slides along the outer wall of the sliding rod, so that the clamping height of the clamping arm can be changed;

[0019] S3. The stepping motor drives the screw to rotate, so that the threaded sleeve drives the clamping arm to slide along the inner wall of the first sliding hole and move towards the center of the tray, thereby clamping the workpiece;

[0020] S4. The first linear guide drives the support plate to move, the second linear guide drives the third linear guide to move, and the third linear guide drives the laser emitting head to move, thereby adjusting the position of the laser emitting head.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The air cylinder drives the fixed disk to move, the fixed disk drives the support rod to move, the support rod slides along the inner wall of the second sliding hole, the support rod drives the connecting block to move, the connecting block drives the rotating sleeve to move through the mounting sleeve. At this time, the screw rotates around the connecting shaft, and the rotating sleeve slides along the outer wall of the screw. When the screw rotates, it drives the clamping arm to move through the threaded sleeve. When the clamping arm moves, the limiting block is limited by the limiting groove, and the slider slides along the outer wall of the sliding rod, so that the clamping height of the clamping arm can be changed. By changing the clamping height of the workpiece, it can adapt to workpieces with different height dimensions for clamping use, thereby making the installation of the workpiece more stable and improving the accuracy and safety of the processing process.

[0023] 2. The stepping motor drives the screw to rotate, so that the threaded sleeve drives the clamping arm to slide along the inner wall of the first sliding hole and move towards the center of the tray, thereby clamping the workpiece; this design can clamp the workpiece according to its size and adapt to workpieces with different sizes for use.

[0024] 3. Through the linkage of the first linear guide, the second linear guide and the third linear guide, the position of the laser emitting head can be flexibly adjusted to meet the needs of different workpieces and cutting. Ensure that the laser beam can be accurately focused on the surface of the workpiece, improving the accuracy and efficiency of cutting; the laser emitted by the laser emitter is focused by the reflection component and then emitted through the laser emitting head. This focusing mechanism further enhances the energy density and cutting ability of the laser beam, improving the accuracy of the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the overall structural schematic diagram of the tray of the present invention;

[0028] Figure 3 is the internal structural schematic diagram of the tray of the present invention;

[0029] Figure 4 is the installation structural schematic diagram of the clamping arm of the present invention;

[0030] Figure 5 is the installation structural schematic diagram of the screw of the present invention;

[0031] Figure 6 is the installation structural schematic diagram of the threaded sleeve of the present invention;

[0032] Figure 7 is the installation structural schematic diagram of the rotating sleeve of the present invention.

[0033] Explanation of the reference numerals in the figure: 1, support base; 2, first linear guide rail; 3, support plate; 4, second linear guide rail; 5, third linear guide rail; 6, mounting frame; 7, laser emitting head; 8, laser emitter; 9, reflection assembly; 10, tray; 11, first sliding hole; 12, limiting groove; 13, second sliding hole; 14, cylinder; 15, fixed disk; 16, support rod; 17, rotating shaft; 18, connecting block; 19, screw; 20, rotating sleeve; 21, mounting sleeve; 22, stepping motor; 23, connecting shaft; 24, clamping arm; 25, mounting hole; 26, threaded sleeve; 27, groove; 28, sliding rod; 29, spring; 30, slider; 31, limiting block. Specific Embodiments

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0035] As Figures 2 - 7 shown, a water-guided laser processing device includes a tray 10. A plurality of first sliding holes 11 are formed in the top of the tray 10, and a lifting assembly is installed below the tray 10;

[0036] On the inner walls of the first sliding holes 11, stepping motors 22 are fixedly connected. The output ends of the stepping motors 22 are fixedly connected with connecting shafts 23. At the ends of the connecting shafts 23, screw rods 19 are rotatably connected. The lifting assembly is used to drive the screw rods 19 to rotate around the connecting shafts 23;

[0037] On both sides of the inner walls of the first sliding holes 11, limiting grooves 12 are opened. On the inner walls of the first sliding holes 11, clamping arms 24 are provided. On both sides of the clamping arms 24, elastic sliding assemblies are installed. The elastic sliding assemblies can slide along the inner walls of the limiting grooves 12. On the outer walls of the clamping arms 24, mounting holes 25 are opened. Inside the mounting holes 25, threaded sleeves 26 are rotatably connected. The inner walls of the threaded sleeves 26 are threadedly connected with the screw rods 19.

[0038] As Figure 3 、 Figure 4 、 Figure 5 and Figure 7 shown, the lifting assembly includes a cylinder 14. The cylinder 14 is installed below the tray 10. The output end of the cylinder 14 is fixedly connected with a fixed disk 15. On the top of the fixed disk 15, a plurality of support rods 16 are fixedly connected;

[0039] On the bottom of the tray 10, a plurality of second sliding holes 13 are opened. The ends of the support rods 16 all penetrate through the second sliding holes 13 and are slidably connected thereto;

[0040] On the inner walls of the support rods 16, rotating shafts 17 are fixedly connected. On the circumferential outer walls of the rotating shafts 17, connecting blocks 18 are rotatably connected. On the tops of the connecting blocks 18, mounting sleeves 21 are fixedly connected. Inside the mounting sleeves 21, rotating sleeves 20 are rotatably connected. The rotating sleeves 20 are slidably connected with the outer walls of the screw rods 19.

[0041] As Figure 3 and Figure 6 shown, on both sides of the clamping arms 24, grooves 27 are opened. The elastic sliding assembly includes a sliding rod 28. The end of the sliding rod 28 is fixedly connected with the inner wall of the groove 27. A spring 29 is sleeved on the outer wall of the sliding rod 28. A slider 30 is sleeved on the outer wall of the sliding rod 28. On the outer wall of the slider 30, a limiting block 31 is fixedly connected. The limiting block 31 is slidably connected with the inner wall of the limiting groove 12. One end of the spring 29 is fixedly connected with the slider 30, and the other end of the spring 29 is fixedly connected with the clamping arm 24.

[0042] As Figure 1 shown, it further includes a support base 1. On the top of the support base 1, two first linear guide rails 2 are fixedly connected. On the sliding parts of the first linear guide rails 2, support plates 3 are fixedly connected. The bottom of the tray 10 is fixedly connected with the top of the support base 1. The cylinder 14 is fixedly connected to the bottom of the support base 1.

[0043] Between the two support plates 3, a second linear guide rail 4 is fixedly connected. On the outer wall of the sliding part of the second linear guide rail 4, a third linear guide rail 5 is fixedly connected.

[0044] A mounting bracket 6 is fixedly connected to the sliding part on the outer wall of the third linear guide rail 5. A laser emitting head 7 is fixedly connected to the outer wall of the mounting bracket 6. A laser emitter 8 is fixedly connected to the outer wall of the mounting bracket 6. A reflection assembly 9 is fixedly connected to the outer wall of the mounting bracket 6. The reflection assembly 9 is composed of a reflecting mirror and a refracting mirror, and the reflection assembly 9 is used for focusing the laser beam.

[0045] The laser emitting head 7 is used to generate a high-energy laser beam. The laser beam is focused through the reflecting mirror and the refracting mirror to form a high-power laser beam. The laser beam irradiates the surface of the workpiece, causing the workpiece to melt rapidly, thereby achieving the purpose of cutting.

[0046] Working principle: Place the workpiece on the top of the tray 10. According to the height of the workpiece, the air cylinder 14 drives the fixed disk 15 to move. The fixed disk 15 drives the support rod 16 to move. The support rod 16 slides along the inner wall of the second sliding hole 13. The support rod 16 drives the connecting block 18 to move. The connecting block 18 drives the rotating sleeve 20 to move through the mounting sleeve 21. At this time, the screw rod 19 rotates around the connecting shaft 23, and the rotating sleeve 20 slides along the outer wall of the screw rod 19.

[0047] When the screw rod 19 rotates, it drives the clamping arm 24 to move through the threaded sleeve 26. When the clamping arm 24 moves, the limiting block 31 is limited by the limiting groove 12, and the slider 30 slides along the outer wall of the sliding rod 28, so that the clamping height of the clamping arm 24 can be changed.

[0048] The stepper motor 22 drives the screw rod 19 to rotate respectively, so that the threaded sleeve 26 drives the clamping arm 24 to slide along the inner wall of the first sliding hole 11 and move towards the center of the tray 10, thereby clamping workpieces of different sizes.

[0049] The first linear guide rail 2 drives the support plate 3 to move. The second linear guide rail 4 drives the third linear guide rail 5 to move. The third linear guide rail 5 drives the laser emitting head 7 to move, thereby adjusting the position of the laser emitting head 7.

[0050] The laser emitter 8 emits laser. The laser beam is focused by the reflection assembly 9 and emitted to the surface of the workpiece through the laser emitting head 7, thereby cutting the workpiece.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-guided laser processing device, comprising a tray (10), characterized in that: A plurality of first sliding holes (11) are formed in the top of the tray (10), and a lifting assembly is installed below the tray (10). Stepping motors (22) are fixedly connected to the inner walls of the first sliding holes (11). A connecting shaft (23) is fixedly connected to the output end of the stepping motor (22). Screw rods (19) are rotatably connected to the ends of the connecting shaft (23). The lifting assembly is used to drive the screw rods (19) to rotate around the connecting shaft (23). Limiting grooves (12) are formed on both sides of the inner wall of the first sliding hole (11). Clamping arms (24) are arranged on the inner wall of the first sliding hole (11). Elastic sliding assemblies are installed on both sides of the clamping arm (24). The elastic sliding assemblies can slide along the inner wall of the limiting groove (12). Mounting holes (25) are formed in the outer wall of the clamping arm (24). Threaded sleeves (26) are rotatably connected to the inner walls of the mounting holes (25). The inner walls of the threaded sleeves (26) are threadedly connected to the screw rods (19).

2. The water-guided laser processing device according to claim 1, wherein: The lifting assembly includes a cylinder (14). The cylinder (14) is installed below the tray (10). A fixed disk (15) is fixedly connected to the output end of the cylinder (14). A plurality of support rods (16) are fixedly connected to the top of the fixed disk (15).

3. The water-guided laser processing device according to claim 2, characterized in that: A plurality of second sliding holes (13) are formed in the bottom of the tray (10). The ends of the support rods (16) all penetrate through the second sliding holes (13) and are slidably connected thereto.

4. The water-guided laser processing device according to claim 3, characterized in that: Rotating shafts (17) are fixedly connected to the inner walls of the support rods (16). Connecting blocks (18) are rotatably connected to the circumferential outer walls of the rotating shafts (17). Mounting sleeves (21) are fixedly connected to the tops of the connecting blocks (18). Rotating sleeves (20) are rotatably connected to the inner walls of the mounting sleeves (21). The rotating sleeves (20) are slidably connected to the outer walls of the screw rods (19).

5. The water-guided laser processing device according to claim 4, characterized in that: Grooves (27) are formed on both sides of the clamping arm (24). The elastic sliding assembly includes a sliding rod (28). The end of the sliding rod (28) is fixedly connected to the inner wall of the groove (27). A spring (29) is sleeved on the outer wall of the sliding rod (28). A slider (30) is sleeved on the outer wall of the sliding rod (28). A limiting block (31) is fixedly connected to the outer wall of the slider (30). The limiting block (31) is slidably connected to the inner wall of the limiting groove (12).

6. The water-guided laser processing device according to claim 5, characterized in that: One end of the spring (29) is fixedly connected to the slider (30), and the other end of the spring (29) is fixedly connected to the clamping arm (24).

7. The water-guided laser processing device according to claim 6, characterized in that: It further includes a support base (1). Two first linear guide rails (2) are fixedly connected to the top of the support base (1). Support plates (3) are fixedly connected to the sliding parts of the first linear guide rails (2). The bottom of the tray (10) is fixedly connected to the top of the support base (1). The cylinder (14) is fixedly connected to the bottom of the support base (1).

8. The water-guided laser processing device according to claim 7, characterized in that: A second linear guide rail (4) is fixedly connected between the two support plates (3). A third linear guide rail (5) is fixedly connected to the outer wall of the sliding part of the second linear guide rail (4).

9. The water-guided laser processing device according to claim 8, characterized in that: A mounting bracket (6) is fixedly connected to the outer wall sliding part of the third linear guide rail (5). A laser emitting head (7) is fixedly connected to the outer wall of the mounting bracket (6). A laser emitter (8) is fixedly connected to the outer wall of the mounting bracket (6). A reflection assembly (9) is fixedly connected to the outer wall of the mounting bracket (6). The reflection assembly (9) is composed of a reflecting mirror and a refracting mirror, and is used for focusing the laser beam.

10. A method for a water-guided laser processing device, applicable to the water-guided laser processing device according to claim 9, characterized in that, It includes the following steps: S1. Place the workpiece on the top of the tray (10). According to the height of the workpiece, the air cylinder (14) drives the fixed disk (15) to move. The fixed disk (15) drives the support rod (16) to move. The support rod (16) slides along the inner wall of the second sliding hole (13). The support rod (16) drives the connecting block (18) to move. The connecting block (18) drives the rotating sleeve (20) to move through the mounting sleeve (21). At this time, the screw rod (19) rotates around the connecting shaft (23), and the rotating sleeve (20) slides along the outer wall of the screw rod (19). S2. When the screw rod (19) rotates, it drives the clamping arm (24) to move through the threaded sleeve (26). When the clamping arm (24) moves, the limiting block (31) is limited by the limiting groove (12), and the slider (30) slides along the outer wall of the sliding rod (28), so that the clamping height of the clamping arm (24) can be changed. S3. The stepping motor (22) drives the screw rod (19) to rotate, so that the threaded sleeve (26) drives the clamping arm (24) to slide along the inner wall of the first sliding hole (11) and move towards the center of the tray (10), thereby clamping the workpiece. S4. The first linear guide rail (2) drives the support plate (3) to move. The second linear guide rail (4) drives the third linear guide rail (5) to move. The third linear guide rail (5) drives the laser emitting head (7) to move, thereby adjusting the position of the laser emitting head (7).

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