Laser cutting machine

Abstract

The utility model discloses a laser cutting machine, and relates to the technical field of laser cutting. Comprising a rack, an X-axis module, a Y-axis module, a Z-axis module, a laser cutting mechanism and a digital camera, the laser cutting mechanism and the digital camera are arranged on the Z-axis module, and the laser cutting mechanism comprises a lifting driver, a connecting block and a laser cutter; the lifting driver is installed on the Z-axis module and connected with the laser cutter through a connecting block. The laser cutting device has the advantages that when the digital camera is installed on the outer wall of the Z-axis module, when the height of the laser cutter needs to be adjusted to guarantee the distance between the laser cutter and a plate, the height of the laser cutter is adjusted through the independent lifting driver, the height of an installation frame does not need to be adjusted, and therefore the height of the digital camera does not change, and the laser cutter can be adjusted conveniently. Therefore, the distance between the camera and the plate can be synchronously calculated in real time without an additional algorithm, and the failure rate of the system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field, concretely relates to a laser cutting machine. BACKGROUND

[0002] The laser cutting process is applied more and more widely in many fields due to its fast speed, narrow cutting seam, small heat affected zone, good perpendicularity of cutting seam edge, smooth cutting edge and wide application range of cutting materials. With the development of laser application technology, the three-dimensional space curve laser cutting has achieved wide application in many fields such as automobile industry and aerospace industry abroad due to its advanced, flexible and strong adaptability. The use of three-dimensional laser cutting not only can save sample and tooling equipment, but also greatly shortens the production preparation period.

[0003] The modern laser cutting system is usually provided with a sensor or a vision system to monitor and adjust the distance between the cutting head and the material surface in real time, which helps the laser cutting system to accurately aim at the cutting area. However, the digital camera installed on the Z-axis needs an additional control algorithm to synchronize the image size change caused by the change of the camera height during the cutting process, which increases the failure rate of the system. The movement of the digital camera along the Z-axis increases the response time, which will cause the delay of image capture and processing, especially at high speed cutting, which will affect the real-time adjustment effect. SUMMARY

[0004] The utility model discloses to aiming at the delay problem of image capture and processing caused by the movement of digital camera along the Z-axis in the prior art, and provides a laser cutting machine.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a laser cutting machine, which comprises a rack, an X-axis module, a Y-axis module, a Z-axis module, a laser cutting mechanism and a digital camera, the X-axis module is arranged on the rack, the Y-axis module is vertically arranged on the upper end of the X-axis module, the Z-axis module is arranged on the Y-axis module, the laser cutting mechanism and the digital camera are arranged on the Z-axis module, the laser cutting mechanism comprises a lifting drive, a connecting block and a laser cutting device, the lifting drive is installed on the Z-axis module and connected with the laser cutting device through the connecting block.

[0006] The X-axis module, the Y-axis module and the Z-axis module are sequentially arranged on the rack, the structure level is clear, and the modules are closely connected. Through this design, the space can be effectively utilized, the machine is more compact and space-saving as a whole, and the installation and operation are facilitated.

[0007] The design of the digital camera can be used for real-time monitoring of the cutting process, better detection of the quality and efficiency of cutting, and remote control and data analysis through digital means

[0008] Each axis module (X, Y, Z) is independently designed and has high stability, which can effectively avoid precision deviation caused by vibration or impact during cutting.

[0009] Further, the Z-axis module comprises a mounting frame, a rack, a guide rail, a sliding block and a Z-axis driver, both ends of the mounting frame are respectively provided with a rack and a guide rail, the sliding block is movably installed on the guide rail, and the Z-axis driver connected with the rack is installed on the sliding block.

[0010] The combination of the rack and the Z-axis driver ensures accurate positioning and stable movement of the Z-axis. The rack driving mode can ensure smooth movement of the Z-axis during cutting and is not affected by reverse force, thereby improving cutting accuracy. The design of the sliding block and the guide rail provides smooth sliding of the Z-axis during movement, reduces friction loss and unnecessary vibration, further improves movement accuracy, and avoids errors caused by changes in friction.

[0011] Compared with the traditional lead screw transmission, the rack transmission can provide higher transmission efficiency, especially in the case of long stroke, the friction loss of the rack transmission is lower, which can improve the working efficiency of the whole equipment.

[0012] Further, the guide rail is provided with a limiting block at both ends for limiting the movement range of the sliding block. The blocking block at both ends of the guide rail effectively prevents the sliding block from derailing, provides additional safety, and ensures the stability of the sliding block during movement.

[0013] Further, the connecting block is provided with a blocking block and a blocking plate at both ends for limiting the displacement distance.

[0014] The blocking block and the blocking plate can effectively limit the displacement range of the connecting block during work to prevent it from exceeding the predetermined movement distance.

[0015] Further, it also comprises a cable drag chain and a drag chain mounting plate, the drag chain mounting plate is provided with three blocks respectively arranged on the rack, the X-axis module and the Y-axis module, and the cable drag chain is also provided with three sections, two sections of the cable drag chain connect the three drag chain mounting plates together, and the last section of the cable drag chain connects the drag chain mounting plates on the Z-axis module and the Y-axis module.

[0016] The cable drag chain and the drag chain mounting plate can effectively integrate the space, reduce the disorder of the cable, improve the neatness of the equipment, and at the same time ensure that the cable is not limited during movement, avoiding twisting and damage.

[0017] Further, the Z-axis module further comprises a mounting block, a baffle and at least two limit switches, the mounting block is arranged on the mounting frame, and the mounting block is provided with a limit groove for mounting the limit switch, the baffle is arranged on the sliding block, one of the limit switches is arranged at a first position of the movement track of the baffle, and the other limit switch is arranged at a second position of the movement track of the baffle.

[0018] By arranging the baffle on the sliding block and arranging two limit switches on the movement track of the baffle, the displacement of the Z-axis module can be accurately controlled. The limit switches are triggered when the baffle passes, thereby limiting the movement range of the sliding block and preventing excessive displacement. Due to the design of the limit groove, the user can easily adjust the position of the limit switch according to the need, ensuring that the triggering position matches the movement track of the baffle.

[0019] After adopting the above technical scheme, the digital camera is installed on the outer wall of the Z-axis module. When the material is deformed or defective and the height of the laser cutting device needs to be adjusted to ensure the distance between the laser cutting device and the plate, the laser cutting device is adjusted in height by a separate lifting drive, without the need to adjust the height of the mounting frame, which causes the height of the digital camera to remain unchanged. Therefore, there is no need for additional algorithms to calculate the distance between the camera and the plate in real time, thereby reducing the failure rate of the system.

[0020] The digital camera can capture images of the material surface in real time, helping the laser cutting system accurately align the cutting area and ensuring that the cutting path is aligned with the material. Especially for complex shapes or irregular materials, the camera can be used to confirm the accurate position of the pattern, thereby improving the cutting accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Fig. 1 is a structural schematic diagram of the present application.

[0023] Fig. 2 is a structural schematic diagram of the Z-axis module in the present application.

[0024] Fig. 3 is a structural schematic diagram of the laser cutting mechanism in the present application.

[0025] Explanation of reference signs: rack 1, X-axis module 2, Y-axis module 3, Z-axis module 4, mounting rack 41, rack 42, guide rail 43, limiting block 431, sliding block 44, Z-axis driver 45, mounting block 46, limiting groove 461, baffle 47, limiting switch 48, laser cutting mechanism 5, lifting driver 51, connecting block 52, blocking block 521, blocking plate 522, laser cutter 53, digital camera 6, cable drag chain 7, drag chain mounting plate 8. DETAILED DESCRIPTION

[0026] Reference Figs. 1-3 The technical scheme adopted in the specific embodiment is shown as follows: a laser cutting machine, which comprises a rack 1, an X-axis module 2, a Y-axis module 3, a Z-axis module 4, a laser cutting mechanism 5 and a digital camera 6. The X-axis module 2 is arranged on the rack 1, the Y-axis module 3 is vertically arranged on the upper end of the X-axis module 2, the Z-axis module 4 is arranged on the Y-axis module 3, and the laser cutting mechanism 5 and the digital camera 6 are arranged on the Z-axis module 4. The X-axis module, the Y-axis module and the Z-axis module 4 are sequentially arranged on the rack 1, the structure is clear, and the modules are closely connected. Through this design, the space can be effectively utilized, the machine is more compact and space-saving, and the installation and operation are facilitated.

[0027] The specific Z-axis module 4 comprises a mounting rack 41, a rack 42, a guide rail 43, a sliding block 44, a Z-axis driver 45, a mounting block 46, a baffle 47 and at least two limiting switches 48. The mounting block 46 is arranged on the mounting rack 41, the mounting block 46 is provided with a limiting groove 461 for mounting the limiting switch 48, the baffle 47 is arranged on the sliding block 44, one of the limiting switches 48 is arranged at a first position of the moving track of the baffle 47, and the other limiting switch 48 is arranged at a second position of the moving track of the baffle 47. The mounting rack 41 is respectively provided with the rack 42 and the guide rail 43 at two ends, the sliding block 44 is movably arranged on the guide rail 43, and the guide rail 43 is provided with limiting blocks 431 at two ends for limiting the moving range of the sliding block 44. The Z-axis driver 45 connected with the rack 42 is arranged on the sliding block 44.

[0028] In actual operation, the slider 44 is connected with the Y-axis module 3 and cannot move along the Z-axis, so when the height of the mounting frame 41 is adjusted, the Z-axis driver 45 rotates to make the rack 42 move up and down, thereby adjusting the height of the mounting frame 41. The baffle 47 on the slider 44 triggers when passing through the limit switch 48, thereby limiting the movement range of the slider 44 and preventing excessive displacement. Due to the design of the limiting groove 461, the user can easily adjust the position of the limit switch 48 according to needs, and ensure that the triggering position matches the movement track of the baffle 47. Compared with the traditional screw drive, the rack 42 drive can provide higher transmission efficiency, especially in the case of long stroke, the friction loss of the rack 42 drive is low, which can improve the working efficiency of the whole equipment. The combination of the rack 42 and the Z-axis driver 45 ensures the accurate positioning and stable movement of the Z-axis. The rack 42 drive can ensure that the movement of the Z-axis is stable and not affected by the reverse force during the cutting process, thereby improving the cutting accuracy.

[0029] The specific laser cutting mechanism 5 includes a lifting driver 51, a connecting block 52 and a laser cutter 53. The lifting driver 51 is installed on the Z-axis module 4 and connected with the laser cutter 53 through the connecting block 52. The connecting block 52 is provided with a blocking block 521 and a blocking plate 522 at both ends for limiting the displacement distance. The blocking block 521 and the blocking plate 522 can effectively limit the displacement range of the connecting block 52 during work, preventing it from exceeding the predetermined movement distance.

[0030] The specific numerical control laser cutting machine also includes a cable drag chain 7 and a drag chain mounting plate 8. The drag chain mounting plate 8 is provided with three blocks arranged on the rack 1, the X-axis module 2 and the Y-axis module 3 respectively, and the cable drag chain 7 is also provided with three sections. Two sections of the cable drag chain 7 connect the three drag chain mounting plates 8 together, and the last section of the cable drag chain 7 connects the Z-axis module 4 with the drag chain mounting plate 8 on the Y-axis module 3.

[0031] The working principle of the utility model is: the material to be cut is placed on the machine table, the equipment is started to adjust the distance between the laser cutter 53 and the material to be cut in the Z-axis module 4, then the X-axis module 2 and the Y-axis module 3 of the equipment are started to drive the laser cutter 53 to move and cut the material. In the process of cutting, the digital camera 6 captures the image of the material surface in real time, helping the laser cutter 53 to accurately align the cutting area. When the height of the laser cutter 53 needs to be adjusted due to defects on the material surface, the lifting driver 51 drives the laser cutter 53 to move to ensure the laser focus of the laser cutter 53.

[0032] The above merely aims to explain the technical scheme of the present application and is not intended to limit the present application. Other modifications or equivalent replacements made by those skilled in the art to the technical scheme of the present application, as long as they do not depart from the spirit and scope of the present application, should be included in the scope of the claims of the present application.

Claims

1. A laser cutting machine, characterized in that, The utility model relates to a laser cutting device, including frame (1), X axis module (2), Y axis module (3), Z axis module (4), laser cutting mechanism (5) and digital camera (6), the frame (1) is equipped with X axis module (2), the Y axis module (3) is vertically equipped with the upper end of X axis module (2), the Y axis module (3) is equipped with Z axis module (4), Z axis module (4) is equipped with laser cutting mechanism (5) and digital camera (6), and laser cutting mechanism (5) includes lifting drive (51), connecting block (52) and laser cutting ware (53), and lifting drive (51) is installed on Z axis module (4) and is connected with laser cutting ware (53) through connecting block (52).

2. A laser cutting machine as claimed in claim 1, characterized in that: The Z axis module (4) includes a mounting frame (41), a rack (42), a guide rail (43), a sliding block (44), and a Z-axis drive (45), both ends of the mounting frame (41) are respectively provided with the rack (42) and the guide rail (43), the sliding block (44) is movably installed on the guide rail (43), and the Z-axis drive (45) connected with the rack (42) is installed on the sliding block (44).

3. A laser cutting machine as claimed in claim 2, wherein: Both ends of the guide rail (43) are provided with limiting blocks (431) for limiting the movement range of the sliding block (44).

4. The laser cutting machine of claim 1, wherein: Both ends of the connecting block (52) are respectively provided with a blocking block (521) and a blocking plate (522) for limiting the displacement distance.

5. The laser cutting machine of claim 1, wherein: It also includes a cable drag chain (7) and a drag chain mounting plate (8), the drag chain mounting plate (8) is provided with three pieces respectively arranged on the frame (1), the X axis module (2) and the Y axis module (3), and the cable drag chain (7) is also provided with three sections, two sections of the cable drag chain (7) connect the three pieces of the drag chain mounting plate (8) together, and the last section of the cable drag chain (7) connects the Z axis module (4) and the drag chain mounting plate (8) on the Y axis module (3).

6. A laser cutting machine as claimed in claim 2, characterized in that: The Z axis module (4) further includes a mounting block (46), a baffle (47), and at least two limit switches (48), the mounting block (46) is arranged on the mounting frame (41), and the mounting block (46) is provided with a limit groove (461) for mounting the limit switch (48), the baffle (47) is arranged on the sliding block (44), one of the limit switches (48) is arranged at the first position of the moving track of the baffle (47), and the other limit switch (48) is arranged at the second position of the moving track of the baffle (47).

Images