Improved laser cutting machine

Abstract

The utility model discloses an improved laser cutting machine which comprises a supporting leg, a cutting base is fixedly connected to the middle of the supporting leg, a sliding frame is fixedly connected to the interior of the upper end of the supporting leg, and two parallel transverse shaft sliding rods are fixedly connected to the interior of the sliding frame. The sliding frame is in rolling connection with an X-axis transmission assembly through a transverse-axis sliding rod, two parallel longitudinal-axis sliding rods are fixedly connected into the X-axis transmission assembly, and the X-axis transmission assembly is in rolling connection with a Y-axis transmission assembly through the longitudinal-axis sliding rods. By means of the structure, accurate control over the position of the laser cutting head can be achieved, cutting accuracy is effectively improved, meanwhile, a transmission device of a worm and worm wheel structure is adopted, transmission efficiency and stability are improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, and particularly relates to an improved laser cutting machine. Background Art

[0002] Laser cutting is a processing technology that uses a laser as a cutting tool. Its principle is to use a laser beam with a high power density to irradiate the material, so that the material is quickly heated to the vaporization temperature, and then evaporates to form holes. As the laser beam moves relative to the material, these holes continuously form narrow slits to complete the cutting process.

[0003] In the technical field of laser cutting, there are some problems to be solved urgently in the existing laser cutting machines. First of all, insufficient cutting accuracy is a common problem, which is mainly due to the limited accuracy of the transmission device and the lack of precise position detection means, resulting in the laser cutting head being unable to accurately reach the predetermined position during the cutting process. Secondly, the stability of the transmission device is poor and prone to failure, which not only affects the continuity of the cutting work, but also increases the maintenance cost of the equipment. In addition, the existing laser cutting machines cannot automatically adjust the cutting parameters when cutting workpieces with different thicknesses and materials, resulting in unstable cutting quality. Finally, the degree of automation of the equipment is low, and there are many operation links that require manual intervention, which not only reduces the work efficiency, but also increases the labor cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an improved laser cutting machine, which can overcome the deficiencies in the prior art and improve the cutting accuracy and work efficiency.

[0005] To achieve the above purpose, an improved laser cutting machine is provided, including: support legs, a cutting seat is fixedly connected to the middle of the support legs, a plurality of fixing holes are uniformly arranged inside the upper side wall of the cutting seat, a sliding frame is fixedly connected to the upper end inside the support legs, two parallel horizontal axis sliding rods are fixedly connected inside the sliding frame, and the sliding frame is connected with an X-axis transmission component through the horizontal axis sliding rods;

[0006] A rotating rod is rotatably connected inside the X-axis transmission component, two parallel vertical axis sliding rods are fixedly connected inside the X-axis transmission component, the X-axis transmission component is connected with a Y-axis transmission component through the vertical axis sliding rods, a laser cutting head is installed on the lower side wall of the Y-axis transmission component, a connecting top plate is fixedly connected to the upper side wall of the Y-axis transmission component, and a second contact piece is fixedly connected to one side wall of the connecting top plate.

[0007] According to the described improved laser cutting machine, a first transmission device is fixedly connected inside the X-axis transmission assembly. The output end of the first transmission device is fixedly connected with a first transmission worm. A first transmission worm gear is fixedly connected to the outer side wall of the rotating rod. The first transmission worm and the first transmission worm gear are meshed with each other. The first transmission device can drive the first transmission worm to rotate, so as to drive the rotating rod to rotate through the first transmission worm gear.

[0008] According to the described improved laser cutting machine, first transmission rollers are fixedly connected to both the left end and the right end of the rotating rod. Each first transmission roller is matched with a horizontal axis sliding rod. When the rotating rod rotates, it can drive the first transmission rollers to rotate, so as to drive the X-axis transmission assembly to slide on the horizontal axis sliding rod.

[0009] According to the described improved laser cutting machine, a side sliding piece is rotatably connected to one end of the rotating rod. A first touch piece is arranged on the side of the side sliding piece away from the rotating rod. A first detection circuit is installed on the rear side wall of the sliding frame. A first resistor seat is fixedly connected to the inner side wall of the sliding frame. The first detection circuit is electrically connected to the first resistor seat. The first resistor seat is composed of two resistor strips. The first touch piece and the two resistor strips form a detection circuit. As the side sliding piece slides, the resistance of the resistor strips connected to the circuit continuously changes, so that the current in the detection circuit changes. A galvanometer is arranged inside the first detection circuit, so that the current change in the detection circuit can be detected, and further the sliding distance of the X-axis transmission assembly can be judged through the current change in the detection circuit.

[0010] According to the described improved laser cutting machine, three microswitches are installed inside the X-axis transmission assembly. The three microswitches are respectively matched with the left inner wall, the right inner wall of the sliding frame and the Y-axis transmission assembly. When the microswitches contact the left inner wall, the right inner wall of the sliding frame and the Y-axis transmission assembly, they will emit electrical signals, so as to facilitate the reset of the X-axis transmission assembly and the Y-axis transmission assembly, and improve the laser cutting accuracy.

[0011] According to the described improved laser cutting machine, two second transmission devices are installed inside the Y-axis transmission assembly. The output end of each second transmission device is fixedly connected with a second transmission worm. The middle part of each transmission shaft is fixedly connected with a second transmission worm gear. Each second transmission worm is meshed with a second transmission worm gear. Second transmission rollers are fixedly connected to both ends of each transmission shaft. Each second transmission roller is matched with a vertical axis sliding rod. The second transmission device can drive the second transmission worm to rotate, so as to drive the transmission shaft to rotate through the second transmission worm gear, and further drive the second transmission rollers to rotate, so that the Y-axis transmission assembly moves along the vertical axis sliding rod.

[0012] According to the improved laser cutting machine described above, a second detection circuit is fixedly connected to one side wall of the X-axis drive assembly. The output end of the second detection circuit is fixedly connected to a second resistor seat, which is composed of two resistor bars. The first contact piece and the two resistor bars form a detection circuit. As the Y-axis drive assembly slides, the resistance of the resistor bars connected to the circuit continuously changes, thereby causing the current in the detection circuit to change. A galvanometer is provided inside the second detection circuit, so that the change in the current in the detection circuit can be detected, and then the sliding distance of the Y-axis drive assembly can be judged by the change in the current in the detection circuit.

[0013] According to the improved laser cutting machine described above, the sliding frame is slidably connected to the X-axis drive assembly to improve the sliding stability of the X-axis drive assembly, and the X-axis drive assembly is slidably connected to the Y-axis drive assembly to improve the sliding stability of the Y-axis drive assembly.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting the first detection circuit and the second detection circuit, the utility model can accurately detect the sliding distances of the X-axis drive assembly and the Y-axis drive assembly, so as to realize the precise control of the position of the laser cutting head. This precise position detection mechanism effectively solves the problem of insufficient cutting accuracy of the existing laser cutting machine, especially when cutting workpieces with complex shapes and high-precision requirements, the advantages are more obvious. By real-time monitoring the sliding distances of the drive assemblies, the system can automatically adjust the position of the laser cutting head to ensure that the cutting path is highly consistent with the preset path, significantly improving the cutting quality and the finished product rate.

[0016] 2. The transmission device of the utility model adopts a worm and worm gear structure, which has high transmission efficiency and stability. Compared with the traditional gear transmission, the worm and worm gear structure can provide a more stable motion transmission, reduce vibration and noise, thereby extending the service life of the equipment. At the same time, this transmission method has a self-locking function, which can prevent the laser cutting head from displacing to a certain extent in the non-working state, further improving the reliability and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the utility model in conjunction with the drawings and embodiments;

[0018] Figure 1 It is a schematic structural diagram of an improved laser cutting machine of the utility model;

[0019] Figure 2 It is a top view schematic diagram of an improved laser cutting machine of the utility model;

[0020] Figure 3Schematic diagram of the X-axis drive assembly in an improved laser cutting machine of the present utility model;

[0021] Figure 4 Schematic diagram of the structure of the Y-axis drive assembly in an improved laser cutting machine of the present utility model;

[0022] Figure 5 Front view schematic diagram of an improved laser cutting machine of the present utility model.

[0023] Legend description:

[0024] 1. Support leg; 2. Cutting seat; 201. Fixed hole; 3. Sliding frame; 301. Horizontal axis slide bar; 302. First resistor seat; 303. First detection circuit; 4. Y-axis drive assembly; 401. Second drive device; 4011. Second drive worm; 402. Drive shaft; 4021. Second drive worm gear; 4022. Second drive roller; 403. Connecting top plate; 4031. Second contact piece; 5. X-axis drive assembly; 501. First drive device; 5011. First drive worm; 502. Rotating rod; 5021. First drive worm gear; 5022. First drive roller; 503. Microswitch; 504. Vertical axis slide bar; 505. Second resistor seat; 506. Side sliding piece; 5061. First contact piece; 507. Second detection circuit; 6. Laser cutting head. Detailed implementation manners

[0025] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0026] Refer to Figures 1-5 In an embodiment of an improved laser cutting machine of the present utility model, it includes a support leg 1. The middle part of the support leg 1 is fixedly connected with a cutting seat 2. A plurality of fixed holes 201 are uniformly arranged inside the upper side wall of the cutting seat 2 for fixing the workpiece to be cut.

[0027] The upper end inside the support leg 1 is fixedly connected with a sliding frame 3. Two parallel horizontal axis slide bars 301 are fixedly connected inside the sliding frame 3. The sliding frame 3 is connected with an X-axis drive assembly 5 through the horizontal axis slide bars 301 in a rolling manner.

[0028] Inside the X-axis drive assembly 5, a rotating rod 502 is rotatably connected. Inside the X-axis drive assembly 5, two parallel longitudinal axis slide rods 504 are fixedly connected. The X-axis drive assembly 5 is rollingly connected to the Y-axis drive assembly 4 through the longitudinal axis slide rods 504. A laser cutting head 6 is installed on the lower side wall of the Y-axis drive assembly 4 for laser cutting. A connecting top plate 403 is fixedly connected to the upper side wall of the Y-axis drive assembly 4. A second contact piece 4031 is fixedly connected to one side wall of the connecting top plate 403.

[0029] In the present utility model, a first drive device 501 is fixedly connected inside the X-axis drive assembly 5. The output end of the first drive device 501 is fixedly connected to a first drive worm 5011. A first drive worm gear 5021 is fixedly connected to the outer side wall of the rotating rod 502. The first drive worm 5011 meshes with the first drive worm gear 5021. This worm and worm gear drive structure not only improves the transmission accuracy but also increases the stability of the transmission system. When the first drive device 501 is started, it drives the first drive worm 5011 to rotate, and then drives the rotating rod 502 to rotate through the first drive worm gear 5021. The rotation of the rotating rod 502 causes the first drive roller 5022 to roll on the horizontal axis slide rod 301, thereby driving the X-axis drive assembly 5 to slide along the horizontal axis slide rod 301. This transmission method can ensure that the X-axis drive assembly 5 remains stable during the sliding process and avoid cutting errors caused by the jitter or jamming of the drive device.

[0030] First drive rollers 5022 are fixedly connected to both the left end and the right end of the rotating rod 502. Each first drive roller 5022 cooperates with a horizontal axis slide rod 301. When the rotating rod 502 rotates, it can drive the first drive rollers 5022 to rotate, thereby driving the X-axis drive assembly 5 to slide on the horizontal axis slide rod 301. This design makes full use of the principle of rolling friction, reduces the resistance during the transmission process, and improves the transmission efficiency. At the same time, the cooperation between the first drive rollers 5022 and the horizontal axis slide rod 301 enables the X-axis drive assembly 5 to maintain a linear motion during the sliding process and avoid cutting path deviations caused by the offset of the transmission components.

[0031] One end of the rotating rod 502 is rotatably connected to a side slider 506. On the side of the side slider 506 away from the rotating rod 502, a first touch piece 5061 is provided. A first detection circuit 303 is installed on the rear side wall of the sliding frame 3. The inner side wall of the sliding frame 3 is fixedly connected to a first resistor base 302. The first detection circuit 303 is electrically connected to the first resistor base 302. The first resistor base 302 is composed of two resistor strips. The first touch piece 5061 and the two resistor strips form a detection loop. As the side slider 506 slides, the resistance of the resistor strips connected to the loop continuously changes, thereby causing the current in the detection loop to change. A galvanometer is provided inside the first detection circuit 303, so that the change in the current in the detection loop can be detected. Furthermore, the sliding distance of the X-axis drive assembly 5 can be judged by the change in the current in the detection loop. This position detection mechanism can monitor the position of the X-axis drive assembly 5 in real time, providing data support for the precise control of the laser cutting head and effectively improving the cutting accuracy.

[0032] Three microswitches 503 are installed inside the X-axis drive assembly 5. The three microswitches 503 cooperate with the left inner wall, the right inner wall of the sliding frame 3 and the Y-axis drive assembly 4 respectively. When the microswitches 503 contact the left inner wall, the right inner wall of the sliding frame 3 and the Y-axis drive assembly 4, electrical signals will be sent out, so as to facilitate the reset of the X-axis drive assembly 5 and the Y-axis drive assembly 4 and improve the laser cutting accuracy. The setting of the microswitches 503 makes it possible for the automatic operation of the equipment. When the drive assembly reaches the preset position, the microswitches 503 send out signals. After the control system receives the signals, it can automatically adjust the next action without manual intervention, improving the work efficiency.

[0033] Two second drive devices 401 are installed inside the Y-axis drive assembly 4. The output end of each second drive device 401 is fixedly connected to a second drive worm 4011. The middle of each transmission shaft 402 is fixedly connected to a second drive worm gear 4021. Each second drive worm 4011 meshes with a second drive worm gear 4021. Both ends of each transmission shaft 402 are fixedly connected to a second drive roller 4022. Each second drive roller 4022 cooperates with the longitudinal axis slide bar 504. The second drive device 401 can drive the second drive worm 4011 to rotate, thereby driving the transmission shaft 402 to rotate through the second drive worm gear 4021, and further driving the second drive roller 4022 to rotate, so that the Y-axis drive assembly 4 moves along the longitudinal axis slide bar 504. This transmission structure is similar to that of the X-axis drive assembly 5, and also adopts the principles of worm and worm gear transmission and rolling friction, ensuring the stability and accuracy of the Y-axis drive assembly 4 during the sliding process.

[0034] A second detection circuit 507 is fixedly connected to one side wall of the X-axis transmission component 5, and a second resistor holder 505 is fixedly connected to the output end of the second detection circuit 507. The second resistor holder 505 is composed of two resistor bars. The first touch sheet 5061 and the two resistor bars form a detection loop. As the Y-axis transmission component 4 slides, the resistance of the resistor bar connected to the loop changes continuously, thereby causing the current in the detection loop to change. An ammeter is provided inside the second detection circuit 507, so that the current change in the detection loop can be detected, and then the sliding distance of the Y-axis transmission component 4 can be determined by the current change in the detection loop. Similar to the position detection of the X-axis, this design provides an accurate means for position monitoring of the Y-axis transmission component 4, further improving the overall cutting accuracy of the laser cutting machine.

[0035] The sliding frame 3 is connected to the X-axis transmission assembly 5 by sliding, which improves the sliding stability of the X-axis transmission assembly 5. The X-axis transmission assembly 5 is connected to the Y-axis transmission assembly 4 by sliding, which improves the sliding stability of the Y-axis transmission assembly 4. This sliding connection design not only reduces the friction resistance during the transmission process, but also ensures the straightness of the transmission assembly during the sliding process, avoiding the transmission error caused by improper connection mode.

[0036] Working principle: When using the laser cutting machine of the utility model, first place the workpiece to be cut on the cutting seat 2 and fix it through the fixing hole 201. Then, the movement of the X-axis transmission assembly 5 and the Y-axis transmission assembly 4 is driven by controlling the first transmission device 501 and the second transmission device 401. The first transmission device 501 drives the first transmission worm 5011 to rotate, and then drives the rotating rod 502 to rotate through the first transmission worm wheel 5021. The rotation of the rotating rod 502 causes the first transmission roller 5022 to roll on the horizontal axis slide bar 301, thereby driving the X-axis transmission assembly 5 to slide along the horizontal axis slide bar 301. At the same time, the second transmission device 401 drives the second transmission worm 4011 to rotate, and drives the transmission shaft 402 to rotate through the second transmission worm wheel 4021, thereby causing the second transmission roller 4022 to roll on the longitudinal axis slide bar 504, driving the Y-axis transmission assembly 4 to slide along the longitudinal axis slide bar 504. During the sliding process of the X-axis transmission assembly 5 and the Y-axis transmission assembly 4, the first detection circuit 303 and the second detection circuit 507 respectively determine the sliding distance by detecting the current change in the loop, thereby achieving precise control of the position of the laser cutting head 6 and improving the cutting accuracy.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An improved laser cutting machine, characterized in that, Comprising: Support legs (1), a cutting seat (2) is fixedly connected to the middle of the support legs (1), a plurality of fixing holes (201) are uniformly arranged inside the upper side wall of the cutting seat (2), a sliding frame (3) is fixedly connected to the inside of the upper end of the support legs (1), two parallel horizontal shaft sliding rods (301) are fixedly connected to the inside of the sliding frame (3), and the sliding frame (3) is rollingly connected to an X-axis transmission component (5) through the horizontal shaft sliding rods (301); A rotating rod (502) is rotatably connected to the inside of the X-axis transmission component (5), two parallel vertical shaft sliding rods (504) are fixedly connected to the inside of the X-axis transmission component (5), the X-axis transmission component (5) is rollingly connected to a Y-axis transmission component (4) through the vertical shaft sliding rods (504), a laser cutting head (6) is installed on the lower side wall of the Y-axis transmission component (4), a connecting top plate (403) is fixedly connected to the upper side wall of the Y-axis transmission component (4), and a second touch piece (4031) is fixedly connected to one side wall of the connecting top plate (403).

2. An improved laser cutting machine according to claim 1, characterized in that, A first transmission device (501) is fixedly connected to the inside of the X-axis transmission component (5), a first transmission worm (5011) is fixedly connected to the output end of the first transmission device (501), a first transmission worm gear (5021) is fixedly connected to the outer side wall of the rotating rod (502), and the first transmission worm (5011) meshes with the first transmission worm gear (5021).

3. An improved laser cutting machine according to claim 1, characterized in that, First transmission rollers (5022) are fixedly connected to both the left end and the right end of the rotating rod (502), and each first transmission roller (5022) cooperates with a horizontal shaft sliding rod (301).

4. An improved laser cutting machine according to claim 1, characterized in that, One end of the rotating rod (502) is rotatably connected to a side sliding piece (506), a first touch piece (5061) is arranged on the side of the side sliding piece (506) away from the rotating rod (502), a first detection circuit (303) is installed on the rear side wall of the sliding frame (3), a first resistor seat (302) is fixedly connected to the inner side wall of the sliding frame (3), the first detection circuit (303) is electrically connected to the first resistor seat (302), the first resistor seat (302) is composed of two resistor strips, and the first touch piece (5061) and the two resistor strips form a detection circuit loop.

5. An improved laser cutting machine according to claim 1, characterized in that, Three micro switches (503) are installed inside the X-axis transmission component (5), and the three micro switches (503) cooperate with the left inner wall, the right inner wall of the sliding frame (3) and the Y-axis transmission component (4) respectively.

6. An improved laser cutting machine according to claim 1, characterized in that, Inside the Y-axis transmission assembly (4), two second transmission devices (401) are installed. The output end of each second transmission device (401) is fixedly connected to a second transmission worm (4011). In the middle of each transmission shaft (402), a second transmission worm gear (4021) is fixedly connected. Each second transmission worm (4011) meshes with a second transmission worm gear (4021). At both ends of each transmission shaft (402), a second transmission roller (4022) is fixedly connected. Each second transmission roller (4022) cooperates with a longitudinal axis slide bar (504).

7. An improved laser cutting machine according to claim 1, characterized in that, On one side wall of the X-axis transmission assembly (5), a second detection circuit (507) is fixedly connected. The output end of the second detection circuit (507) is fixedly connected to a second resistor seat (505). The second resistor seat (505) consists of two resistor strips. The first contact piece (5061) and the two resistor strips form a detection loop.

8. An improved laser cutting machine according to claim 1, characterized in that, The sliding frame (3) is slidably connected to the X-axis transmission assembly (5), and the X-axis transmission assembly (5) is slidably connected to the Y-axis transmission assembly (4).

Images