Double-station laser cutting machine tool

Abstract

The invention discloses a double-station laser cutting machine tool, belongs to the technical field of machine tools, aims to provide a double-station laser cutting machine tool capable of improving laser cutting precision, and adopts the technical scheme that the double-station laser cutting machine tool comprises a machine tool body, a three-dimensional moving mechanism, a laser cutting head and a workpiece mounting mechanism; the lathe bed is a mineral casting lathe bed; the three-dimensional moving mechanism is fixedly connected to the lathe bed; the laser cutting head is fixedly connected to the three-dimensional moving mechanism; the workpiece mounting mechanism is arranged on the lathe bed and located on one side of the three-dimensional moving mechanism. And the laser cutting head is positioned above the workpiece mounting mechanism.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, and in particular to a dual-station laser cutting machine tool. Background Technology

[0002] Laser cutting machine tools are machine tools that use high-power laser beams to process metal materials. They are widely used in sheet metal manufacturing, automotive parts, aerospace and other fields.

[0003] Traditional laser cutting machine tools are usually made of welded metal plates. As the precision requirements for cutting metal materials continue to increase, especially for metal materials used in the aerospace field, the traditional laser cutting machine tool suffers from reduced cutting precision due to the vibration generated by the drive device driving the laser cutting head during processing, as well as the thermal expansion of the metal body caused by ambient temperature and the movement of the drive device. Summary of the Invention

[0004] To improve the cutting accuracy of laser cutting, this application provides a dual-station laser cutting machine tool.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a dual-station laser cutting machine tool, including a bed, a three-dimensional moving mechanism, a laser cutting head, and a workpiece mounting mechanism; The bed is a mineral casting bed; The three-dimensional moving mechanism is fixedly connected to the bed; The laser cutting head is fixedly connected to the three-dimensional moving mechanism; The workpiece mounting mechanism is mounted on the bed and located on one side of the three-dimensional moving mechanism; The laser cutting head is located above the workpiece mounting mechanism.

[0006] By adopting the above technical solution, the three-dimensional moving cabinet mechanism and the workpiece mounting mechanism are fixedly installed on the bed of the mineral casting. The bed of the mineral casting has good shock absorption and a low coefficient of thermal expansion. Therefore, during the high-speed two-dimensional planar motion of the laser cutting head driven by the three-dimensional moving mechanism, the vibration of the bed of the mineral casting can be effectively reduced, thereby improving the positional stability of the three-dimensional moving mechanism and the workpiece mounting mechanism, and achieving the effect of improving the laser cutting accuracy. At the same time, the bed of the mineral casting can also reduce the temperature influence caused by the high-speed motion of the three-dimensional moving mechanism and the surrounding environment, ensuring the stability of the overall structure and achieving the effect of improving the laser cutting accuracy.

[0007] Furthermore, the three-dimensional moving mechanism includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component; The X-axis moving assembly includes an X-axis linear motor fixed to the bed, two X-axis linear slide rails disposed on the bed and located on both sides of the X-axis linear motor, and an X-axis slide block slidably connected to the two X-axis linear slide rails. The X-axis slide block is fixedly connected to the mover of the X-axis linear motor. The Y-axis moving assembly includes a Y-axis linear motor fixed to the X-axis slide block, two Y-axis linear slide rails disposed on the X-axis slide block and located on both sides of the Y-axis linear motor, and a Y-axis slide block slidably connected to the two Y-axis linear slide rails. The Y-axis slide block is fixedly connected to the mover of the Y-axis linear motor. The Z-axis moving assembly includes a fixed base connected to one end of the Y-axis slide, a drive motor fixed to the upper end of the fixed base, and a Z-axis slider that is slidably connected to the fixed base and driven to move up and down by the drive motor. The laser cutting head is fixedly connected to the Z-axis slider.

[0008] By adopting the above technical solution, the X-axis slide can move quickly and accurately along the X-axis direction under the drive of the X-axis linear motor, thereby driving the Y-axis moving component on the X-axis slide; the Y-axis slide can move quickly and accurately along the Y-axis direction under the drive of the Y-axis linear motor, thereby driving the rapid movement of the Z-axis moving component; that is, the laser cutting head can achieve rapid and accurate movement in the two-dimensional plane of X and Y axes, and can achieve rapid and accurate cutting of metal plates with complex structures and short-distance direction switching.

[0009] Furthermore, the bed is provided with an X-axis scale grating for feedback control of the X-axis linear motor. The X-axis scale grating is parallel to the X-axis linear slide rail, and the bottom of the X-axis slide is provided with an X-axis grating reading head that cooperates with the X-axis scale grating.

[0010] By adopting the above technical solution, the cooperation between the X-axis grating reading head and the X-axis scale grating can accurately read the distance of the X-axis slide movement, thereby controlling the X-axis linear motor to move to the accurate position and improving the accuracy of the laser cutting head movement in the X-axis direction.

[0011] Furthermore, the X-axis slide is provided with a Y-axis scale grating for feedback control of the Y-axis linear motor. The Y-axis scale grating is parallel to the Y-axis linear slide rail, and the bottom of the Y-axis slide is provided with a Y-axis grating reading head that cooperates with the Y-axis scale grating.

[0012] By adopting the above technical solution, the cooperation between the Y-axis grating reading head and the Y-axis scale grating can accurately read the distance of the Y-axis slide movement, thereby controlling the Y-axis linear motor to move to the accurate position and improving the accuracy of the laser cutting head movement in the Y-axis direction.

[0013] Furthermore, the workpiece mounting mechanism includes a drive cylinder, a worktable, and two parallel table rails. The two table rails are mounted on the bed and perpendicular to the X-axis linear rail. The worktable is slidably connected to the table rails. The drive cylinder is connected to the bed to drive the worktable to reciprocate.

[0014] By adopting the above technical solution, when it is necessary to load and unload the workpiece to be cut, the drive cylinder pushes the worktable to move on the table track, moving the worktable to a position away from the laser cutting head to facilitate loading and unloading by the staff.

[0015] Furthermore, the workpiece mounting mechanism is configured as two side by side, with the two workpiece mounting mechanisms arranged along the X-axis linear slide rail direction.

[0016] By adopting the above technical solution, while one workpiece is in the cutting state, the operator can install the workpiece to be cut on another workbench. After the workpiece is cut, the laser cutting head can be moved to another workpiece to be cut to start cutting, saving the waiting time for loading and unloading workpieces and improving production efficiency.

[0017] Furthermore, the lower side of the X-axis slide block and the two ends perpendicular to the X-axis linear slide rail are set as inclined surfaces, the X-axis slide block has a hollow structure, and reinforcing ribs are provided inside the X-axis slide block.

[0018] By adopting the above technical solutions, the hollow structure of the X-axis slide can reduce the driving load of the X-axis linear motor, increase the response speed of the X-axis linear motor, and reduce the inertia of rapid acceleration and deceleration in high-speed motion; the setting of reinforcing ribs ensures the strength of the X-axis slide.

[0019] Furthermore, the X-axis slide and the side adjacent to the bottom surface are each provided with an X-through hole that extends to the opposite side, and the X-through hole is connected to the hollow structure of the X-axis slide.

[0020] By adopting the above technical solution, the high-speed reciprocating motion of the X-axis slide and the Y-axis moving component leads to an increase in the temperature of the X-axis slide. During the high-speed movement of the X-axis slide, the X-through hole allows air to quickly enter the hollow interior of the X-axis slide, carrying away heat and blowing it out from the X-through hole on the other side. This reduces the temperature of the X-axis slide itself, minimizes its thermal expansion, and thus ensures the positional accuracy of the Y-axis moving component on the X-axis slide, thereby improving the cutting precision of the laser cutting head. Simultaneously, it also reduces wind resistance during the movement of the X-axis slide.

[0021] Furthermore, each of the two Y-axis linear slide rails is provided with two Y-axis sliders, and each side of the Y-axis slide is provided with a connecting seat that is fixedly connected to the Y-axis slider in a one-to-one correspondence.

[0022] By adopting the above technical solution, the Y-axis slider is connected to the Y-axis slide block by the connecting seat on the Y-axis slider, instead of placing the entire Y-axis slide block on the Y-axis slider. This reduces the overall volume and weight of the Y-axis slider, reduces the drive load of the Y-axis linear motor, increases the response speed of the Y-axis linear motor, and reduces the inertia of rapid acceleration and deceleration in high-speed motion. It also reduces the drive load of the X-axis.

[0023] Furthermore, the Y-axis slide is a hollow structure with an opening at the top and an air inlet on the side of the Y-axis slide away from the laser cutting head.

[0024] By adopting the above technical solution, the air generated during the high-speed reciprocating motion of the Y-axis slide can enter the hollow Y-axis slide through the air inlet on one side and be blown out from the top of the Y-axis slide, thereby reducing the temperature of the Y-axis slide, reducing the thermal expansion of the Y-axis slide, and improving the cutting accuracy of the laser cutting head; the Y-through hole can also reduce the wind resistance during the movement of the Y-axis slide; and the hollow Y-axis slide reduces the weight, reduces the drive load of the Y-axis linear motor, increases the response speed of the Y-axis linear motor, and reduces the inertia of rapid acceleration and deceleration in high-speed motion.

[0025] In summary, this application has the following beneficial effects: The mineral casting bed has good shock absorption and a low coefficient of thermal expansion, which enables the laser cutting head to have good displacement accuracy during high-speed cutting and improves the cutting precision of the workpiece. Using X-axis and Y-axis linear motors for high-speed two-dimensional planar motion, and cooperating with X-axis and Y-axis scale gratings to precisely control the two-dimensional planar motion of the laser cutting head, the laser cutting head can be accurately moved and stopped quickly, achieving the goal of efficient and precise workpiece cutting; It is configured as a dual-station system with two workpiece mounting mechanisms, which reduces the waiting time of the laser cutting head during loading and unloading, enables continuous processing, and improves work efficiency. The X-axis and Y-axis slides are designed with a hollow structure and have through holes. This reduces weight, making the overall laser cutting head respond faster and more accurately, and also increases heat dissipation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram used to illustrate the overall structure in this embodiment.

[0027] Figure 2 This is a structural schematic diagram used to illustrate the three-dimensional moving mechanism in this embodiment.

[0028] Figure 3This is a schematic diagram used in this embodiment to illustrate the connection relationship between the X-axis slide and the Y-axis slide.

[0029] Figure 4 This is a schematic diagram illustrating the structure of the X-axis slide in this embodiment.

[0030] Figure 5 This is a schematic diagram illustrating the structure of the Y-axis slide in this embodiment.

[0031] Figure 6 This is a schematic diagram illustrating the workpiece mounting mechanism in this embodiment.

[0032] Figure 7 This is a schematic diagram of the product structure used in this embodiment to illustrate one type of workpiece to be cut.

[0033] Explanation of reference numerals in the attached figures: 1. Bed; 2. Three-dimensional moving mechanism; 21. X-axis moving assembly; 211. X-axis linear motor; 212. X-axis linear guide rail; 2121. X-axis slider; 213. X-axis slide block; 2131. Inclined surface; 2132. Reinforcing rib; 2133. X-axis through hole; 214. X-axis scale grating; 215. X-axis grating reading head; 22. Y-axis moving assembly; 221. Y-axis linear motor; 222. Y-axis linear guide rail; 223. Y-axis slide block; 2231. Air inlet; 2232. Connecting... 1. Connector; 2233. Air outlet; 224. Y-axis scale grating; 225. Y-axis grating reading head; 226. Y-axis slider; 227. Connecting plate; 23. Z-axis moving assembly; 231. Fixed base; 232. Drive motor; 233. Z-axis slider; 3. Laser cutting head; 4. Workpiece mounting mechanism; 41. Drive cylinder; 42. Worktable; 43. Worktable slide rail; 44. Linkage rod; 45. Limit switch; 5. First dust cover; 51. Forming hole; 6. Second dust cover; 7. Workpiece. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This embodiment discloses a dual-station laser cutting machine tool, such as Figure 1 and 2As shown, the assembly includes a bed 1, a three-dimensional moving mechanism 2 fixedly mounted on the bed 1, a laser cutting head 3 fixedly mounted on the three-dimensional moving mechanism 2, and two workpiece mounting mechanisms 4 arranged side-by-side on the bed 1 for fixing the workpiece to be cut. The laser cutting head 3 is located above the workpiece mounting mechanisms 4, and is driven by the three-dimensional moving mechanism 2 to cut the workpiece above the workpiece mounting mechanisms 4. In this embodiment, the bed 1 is a one-piece structure made of mineral casting material. The mineral casting bed 1 has good shock absorption and a low coefficient of thermal expansion. During the high-speed irregular movement of the laser cutting head 3 driven by the three-dimensional moving mechanism 2, it provides a stable and solid fixed foundation for the three-dimensional moving mechanism 2, making the laser cutting head 3 less prone to shaking during the cutting process and improving the workpiece cutting accuracy. Moreover, the positional accuracy of the laser cutting head 3 is not reduced due to the influence of thermal expansion factors.

[0036] like Figure 1 and 2 As shown, the three-dimensional moving mechanism 2 includes an X-axis moving assembly 21, a Y-axis moving assembly 22, and a Z-axis moving assembly 23. The X-axis moving assembly 21 includes an X-axis linear motor 211 fixed to the bed 1. X-axis linear slide rails 212 are respectively arranged on both sides of the X-axis linear motor 211, and the two X-axis linear slide rails 212 are fixedly connected to the bed 1. An X-axis slide block 213 is arranged above the two X-axis linear slide rails 212, and the X-axis slide block 213 is slidably connected to the X-axis linear slide rails 212 via an X-axis slider 2121. The mover on the X-axis linear motor 211 is fixedly connected to the lower part of the X-axis slide block 213 to drive the X-axis slide block 213 to move rapidly on the X-axis linear slide rails 212. To improve the accuracy of the X-axis slide 213's movement position, an X-axis scale grating 214 parallel to the X-axis slide rail is fixedly installed on the machine tool. The X-axis scale grating 214 is located between two X-axis linear slide rails 212. An X-axis grating reading head 215, which cooperates with the X-axis scale grating 214, is installed on one side of the bottom of the X-axis slide 213. The X-axis grating reading head 215 is located on the side of the X-axis scale grating 214 close to the X-axis linear motor 211. The X-axis grating reading head 215 is controlled and connected to the X-axis linear motor 211 through a controller. The position of the X-axis grating reading head 215 is close to the middle position of the X-axis slide 213, thereby enabling more precise control of the movement distance of the X-axis linear motor 211 driving the X-axis slide 213, thus improving the accuracy of the laser cutting head 3 in cutting the workpiece.

[0037] like Figure 3As shown, in this embodiment, the X-axis slide 213 has a hollow structure. To ensure the strength of the X-axis slide 213, several reinforcing ribs 2132 are provided inside the X-axis slide 213. Both ends of the lower side of the X-axis slide 213, perpendicular to the X-axis linear guide rail 212, are set as inclined surfaces 2131. This reduces the weight of the X-axis slide 213; furthermore, the height difference between the inclined surface 2131 on the laser cutting head 3 side and the workpiece mounting mechanism 4 is increased, providing space when fixing workpieces of a certain height and preventing collisions between the X-axis slide 213 and the workpiece during movement. X-through holes 2133 are provided on the sides of the X-axis slide 213 adjacent to the bottom surface, extending to the opposite side. That is, the side with the inclined surface 2131 also has a through X-through hole 2133, improving the overall heat dissipation of the X-axis slide 213.

[0038] like Figure 4 As shown, the Y-axis moving assembly 22 includes a Y-axis linear motor 221 fixed above the X-axis slide block 213, and Y-axis linear slide rails 222 are respectively provided on both sides of the Y-axis linear motor 221. Two Y-axis sliders 226 are slidably connected to each Y-axis linear slide rail 222. A Y-axis slide block 223 is provided above the Y-axis linear motor 221. Two connecting seats 2232 extend from both sides of the Y-axis slide block 223 and are respectively located above the Y-axis sliders 226. A connecting plate 227 is also provided between the connecting seat 2232 and the Y-axis slider 226. The Y-axis slider 226 is fixedly connected to the connecting plate 227, and the connecting plate 227 is fixedly connected to the connecting seat 2232. There is a gap between the Y-axis slide block 223 and the connecting plate 227. The mover of the Y-axis linear motor 221 is fixedly connected to the connecting plate 227. A Y-axis scale grating 224, parallel to the Y-axis slide rail, is mounted on the X-axis slide block 213. The Y-axis scale grating 224 is located between two Y-axis linear slide rails 222. A Y-axis grating reading head 225, which cooperates with the Y-axis scale grating 224, is positioned below the connecting plate 227. The X-axis grating reading head is connected to the Y-axis linear motor 221 via a controller. The cooperation between the Y-axis grating reading head 225 and the Y-axis scale grating 224 allows for more precise control of the movement distance of the Y-axis linear motor 221 driving the Y-axis slide block 223, thereby improving the accuracy of the laser cutting head 3 in cutting the workpiece. The connecting seats 2232 extending from both sides of the Y-axis slide block 223 reduce the overall volume of the Y-axis slide block 223, making the entire structure more compact and allowing for more flexible movement.

[0039] like Figure 5 As shown, in this embodiment, the Y-axis slide 223 is a hollow structure with an opening at the top. An air inlet 2231 communicating with the interior of the Y-axis slide 223 is provided on the side of the Y-axis slide 223 away from the Z-axis moving component 23. Several air outlets 2233 are provided on the two sides of the Y-axis slide 223 adjacent to the Z-axis moving component 23.

[0040] like Figure 2 As shown, the Z-axis moving assembly 23 includes a fixed base 231 fixed to one end of the Y-axis slide 223 facing the workpiece mounting mechanism 4. A drive motor 232 is fixedly connected to the upper end of the fixed base 231 on the side away from the Y-axis slide 223. A Z-axis slider 233 is slidably connected to the fixed base 231 on the side away from the Y-axis slide 223. The drive motor 232 drives the Z-axis slider 233 to move up and down through a lead screw. The laser cutting head 3 is fixed on the Z-axis slider 233 and located above the workpiece mounting mechanism 4.

[0041] like Figure 1 and 6 As shown, two workpiece mounting mechanisms 4 are arranged side-by-side on the machine tool along the length of the X-axis linear slide rail 212. Each workpiece mounting mechanism 4 includes a drive cylinder 41 fixedly connected to the bottom of the machine bed 1. The piston rod of the drive cylinder 41 is perpendicular to the X-axis linear slide rail 212. Two parallel table slide rails 43 are arranged on one side of the X-axis linear slide rail 212 on the machine tool. The table slide rails 43 are perpendicular to the X-axis linear slide rail 212. A worktable 42 for fixing the workpiece to be cut is slidably connected to the table slide rails 43. A linkage rod 44 is fixedly connected to the piston rod of the drive cylinder 41, and the other end of the linkage rod 44 is fixedly connected to the bottom of the worktable 42. When the piston rod of the drive cylinder 41 is in a fully retracted state, that is, when the worktable 42 is in the position closest to the X-axis linear slide rail 212, this position is where the laser cutting head 3 performs the cutting process. A limit switch 45 is provided on the side of the bed 1 away from the drive cylinder 41. When the piston rod of the drive cylinder 41 drives the worktable 42 away from the X-axis slide 213 to the workpiece loading and unloading position for the worker to load and unload the workpiece, the linkage rod 44 cooperates with the limit switch 45 to stop the drive cylinder 41 from moving.

[0042] like Figure 5As shown, a first dust cover 5 is provided on the X-axis slide 213, covering the X-axis linear slide rail 212, the X-axis linear motor 211, and the connecting plate 227. Stroke holes 51 for the connecting plate 227 to pass through are provided on both sides of the first dust cover 5. The connecting seat 2232 is fixed to the outside of the stroke holes 51 of the connecting plate 227. The first dust cover 5 protects the X-axis linear slide rail 212 and the X-axis scale grating 214, reducing the entry of external dust and impurities that could cause wear on the X-axis linear slide rail 212. A gap is left between the Y-axis slide 223 and the connecting plate 227, providing space for the first dust cover 5 to be installed above the connecting plate 227. A second dust cover 6 is provided on both sides of the Y-axis slide 223 located on the connecting seat 2232. The bottom of the second dust cover 6 abuts against the first dust cover 5, extends upward from the bottom to cover the connecting seat 2232, and then converges towards the opening above the Y-axis slide 223, but does not cover the opening above or the air inlet 2231. The second dust cover 6 can reduce the entry of external dust into the Y-axis slide 223. During the movement of the Y-axis slide 223, the air generated by the upward convergence of the second dust cover 6 can enter through the air inlet 2231 to dissipate heat from the Y-axis. Part of the air blows out from the opening above to carry away the heat, and another part of the air enters from the air outlet 2233 between the second dust cover 6 and the Y-axis slide 223, making full contact with the outside of the Y-axis slide 223 and the connecting seat 2232, and then the air blows out from the gap between the second dust cover 6 and the Y-axis slide 223. Since the upper part of the second dust cover 6 is retracted to form a space with the Y-axis slide 223 and leaves an air outlet gap, the air entering from the air outlet 2233 will have a compression effect, which can better contact the Y-axis slide 223 and the connecting seat 2232 to remove heat.

[0043] Specific implementation process: The workpiece processed in this embodiment is as follows: Figure 7 For workpieces with complex cutting paths, the operator first fixes the workpiece 7 to be cut on one of the worktables 42. Then, the drive cylinder 41 retracts the piston rod, which drives the worktable 42 to slide to the side near the X-axis linear slide rail 212 via the linkage rod 44, i.e., moves it to the processing position. After the position is calibrated, the drive motor 232 drives the Z-axis slider 233 to move downward, so that the laser cutting head 3 moves to the processing laser cutting height and starts the laser cutting head 3. At the same time, the X-axis linear motor 211 and the Y-axis linear motor 221 start. The X-axis linear motor 211 drives the X-axis slide 213 to move back and forth quickly on the X-axis linear slide rail 212, and the Y-axis linear motor 221 drives the Y-axis slide 223 to move back and forth quickly on the X-axis linear slide rail 212. This enables the laser cutting head 3 to perform two-dimensional planar movement and complete the rapid and precise laser cutting of the complex workpiece 7.

[0044] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A dual station laser cutting machine, characterized in that: Including the bed body (1), three-dimensional moving mechanism (2), laser cutting head (3) and workpiece installation mechanism (4); The bed body (1) is a mineral casting bed body (1); The three-dimensional moving mechanism (2) is fixedly connected to the bed body (1); The laser cutting head (3) is fixedly connected to the three-dimensional moving mechanism (2); The workpiece installation mechanism (4) is arranged on the bed body (1) and located on one side of the three-dimensional moving mechanism (2); The laser cutting head (3) is located above the workpiece installation mechanism (4).

2. The dual station laser cutting machine of claim 1, wherein: The three-dimensional moving mechanism (2) includes X-axis moving assembly (21), Y-axis moving assembly (22) and Z-axis moving assembly (23); The X-axis moving assembly (21) includes X-axis linear motor (211) fixed on the bed body (1), two X-axis linear sliding rails (212) arranged on the bed body (1) and located on both sides of the X-axis linear motor (211), and X-axis sliding seat (213) slidably connected with the two X-axis linear sliding rails (212), wherein the X-axis sliding seat (213) is fixedly connected with the mover of the X-axis linear motor (211); The Y-axis moving assembly (22) includes Y-axis linear motor (221) fixed on the X-axis sliding seat (213), two Y-axis linear sliding rails (222) arranged on the X-axis sliding seat (213) and located on both sides of the Y-axis linear motor (221), and Y-axis sliding seat (223) slidably connected with the two Y-axis linear sliding rails (222), wherein the Y-axis sliding seat (223) is fixedly connected with the mover of the Y-axis linear motor (221); The Z-axis moving assembly (23) includes fixed seat (231) connected to one end of the Y-axis sliding seat (223), drive motor (232) fixed to the upper end of the fixed seat (231), Z-axis sliding block (233) slidably connected with the fixed seat (231) and driven by the drive motor (232) to move up and down, and laser cutting head (3) fixedly connected with the Z-axis sliding block (233).

3. The dual station laser cutting machine of claim 2, wherein: An X-axis scale grating (214) for feedback control of the X-axis linear motor (211) is arranged on the bed body (1), the X-axis scale grating (214) is parallel to the X-axis linear sliding rail (212), and the bottom of the X-axis sliding seat (213) is provided with X-axis grating reading head (215) matched with the X-axis scale grating (214).

4. The dual station laser cutting machine of claim 3, wherein: A Y-axis scale grating (224) for feedback control of the Y-axis linear motor (221) is arranged on the X-axis sliding seat (213), the Y-axis scale grating (224) is parallel to the Y-axis linear sliding rail (222), and the bottom of the Y-axis sliding seat (223) is provided with Y-axis grating reading head (225) matched with the Y-axis scale grating (224).

5. The dual station laser cutting machine of claim 2, wherein: The workpiece mounting mechanism (4) comprises a driving cylinder (41), a workbench plate (42) and two parallel table plate slide rails (43), the two table plate slide rails (43) are arranged on the lathe bed (1) and are perpendicular to the X-axis linear slide rail (212), the workbench plate (42) is in sliding connection with the table plate slide rail (43), and the driving cylinder (41) is connected to the lathe bed (1) and used for driving the workbench plate (42) to reciprocate.

6. The dual station laser cutting machine of claim 5, wherein: The workpiece mounting mechanism (4) is arranged in parallel and is arranged in parallel along the direction of the X-axis linear slide rail (212).

7. The dual station laser cutting machine of claim 2, wherein: The lower side of the X-axis slide block (213) is provided with an inclined surface (2131) at the two ends perpendicular to the X-axis linear slide rail (212), the X-axis slide block (213) is a hollow structure, and a reinforcing rib (2132) is arranged in the X-axis slide block (213).

8. The dual station laser cutting machine of claim 7, wherein: The side adjacent to the bottom surface of the X-axis slide block (213) is provided with an X-through hole (2133) penetrating to the opposite side, and the X-through hole (2133) is in communication with the hollow structure of the X-axis slide block (213).

9. The dual station laser cutting machine of claim 2, wherein: The two Y-axis linear slide rails (222) are each provided with two Y-axis sliding blocks (226), and the two sides of the Y-axis slide block (223) are respectively provided with a connecting seat (2232) fixedly connected in one-to-one correspondence with the Y-axis sliding block (226).

10. The dual station laser cutting machine of claim 9, wherein: The Y-axis slide block (223) is a hollow structure, the Y-axis slide block (223) is open at the top, and an air inlet hole (2231) is arranged on the side, away from the laser cutting head (3), of the Y-axis slide block (223).

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