Laser cutting device for automotive parts

Abstract

The utility model discloses a kind of laser cutting device for automobile parts, including laser machine, for cutting workpiece;Rotary mechanism, including multiple rotating shafts arranged side by side, rotating assembly for driving multiple rotating shafts to rotate, and multiple loading platforms installed one-to-one on multiple rotating shafts;Loading platform is used to install workpiece;Loading platform can rotate along rotating shaft circumferentially, and first station and second station are provided on loading platform, and first station and second station are sequentially arranged along the track of rotating shaft rotation;Rotating assembly includes synchronizing wheel respectively mounted on multiple rotating shafts, synchronizing belt sleeved on multiple synchronizing wheels, and drive motor for driving synchronizing belt movement;Loading platform rotates around rotating shaft circumferentially, so that workpiece completes the switching of different stations in laser processing process, so that different cutting surfaces of workpiece are sequentially presented to laser machine, reduce the frequency of manual overturning and re-clamping, effectively improve cutting precision and working efficiency, suitable for multi-surface cutting scene.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a laser cutting device for automotive parts. Background Technology

[0002] With the development of the automotive manufacturing industry, the structure of chassis components is becoming increasingly complex. Currently, most automotive chassis components are processed using a single fixed-station machining mode during laser cutting. This means the workpiece is clamped in a single plane and cut by a laser cutting machine. When the workpiece needs to be cut on different surfaces, manual intervention is required to repeatedly loosen, flip, and reposition it before continuing the cutting process. This method has significant problems: each flipping and repositioning requires manual operation, increasing labor intensity and time consumption, resulting in low overall processing efficiency. Furthermore, during repeated positioning, it is difficult to ensure that the workpiece position is completely consistent, easily leading to cutting position deviations, affecting the processing accuracy and quality of the parts, and even causing the workpiece to be scrapped. Utility Model Content

[0003] The main purpose of this invention is to propose a laser cutting device for automotive parts, which aims to solve the problems of low efficiency and poor precision in the existing chassis parts cutting methods in the automotive manufacturing industry.

[0004] To achieve the above objectives, this utility model proposes a laser cutting device for automotive parts, comprising: Laser machines are used to cut workpieces; The rotating mechanism includes multiple rotating shafts arranged side by side, a rotating assembly that drives the multiple rotating shafts to rotate, and multiple loading platforms that are installed on the multiple rotating shafts one by one. The loading platform is used to install the workpiece; the loading platform can rotate circumferentially along the rotation axis, and the loading platform is provided with a first station and a second station, the first station and the second station being arranged sequentially along the rotation trajectory of the rotation axis; The rotating assembly includes synchronous pulleys respectively mounted on multiple rotating shafts, a synchronous belt sleeved on multiple synchronous pulleys, and a drive motor for driving the synchronous belt to move.

[0005] In some embodiments, the rotating assembly is housed within a protective housing, and the rotating shaft passes through the protective housing and is connected to the synchronous pulley; a protrusion is provided at one end of the rotating shaft passing through the synchronous pulley, and a limit rod is provided radially on the protrusion; limit blocks are respectively provided on both sides of the limit rod within the protective housing to prevent the limit rod from rotating.

[0006] In some embodiments, a baffle is provided on the synchronous pulley; a first sensor is provided inside the protective housing corresponding to the baffle, the first sensor being used to detect whether the baffle has reached a predetermined position.

[0007] In some embodiments, the loading platform includes two mounting seats arranged sequentially along the length of the rotation axis, with the two mounting seats corresponding to the two ends of the workpiece respectively; the rotation mechanism further includes a first positioning component for fixing the workpiece on the mounting seats.

[0008] In some embodiments, the mounting base includes a main body and an extension disposed radially outward along the main body; The first positioning component includes a first positioning block disposed on the main body, a second positioning block disposed on the extension, and a first driving member that drives the first positioning block to extend radially and retract, and a second driving member that drives the second positioning block to extend axially and retract. The second positioning block is also provided with a third positioning block to prevent the workpiece from radially shifting.

[0009] In some embodiments, the loading platform includes a mounting plate; the mounting plate is disposed along the length direction of the rotation axis; the rotation mechanism further includes a second positioning component for fixing the workpiece to the mounting plate.

[0010] In some embodiments, the second positioning component includes a positioning post disposed on the mounting plate, and also includes a clamping member for pressing the workpiece against the surface of the mounting plate.

[0011] In some embodiments, the two ends of the plurality of rotating shafts are respectively mounted on two oppositely arranged fixed plates, and the protective housing is disposed on the fixed plates.

[0012] In some embodiments, there are two rotating mechanisms, which are symmetrically arranged on the left and right sides of the laser machine.

[0013] In some embodiments, the system further includes a Z-axis motion mechanism for driving the laser machine to move up and down, an X-axis motion mechanism for driving the laser machine to reciprocate along the length of the rotation axis, and a Y-axis motion mechanism for driving the laser machine to move back and forth between the two rotation mechanisms.

[0014] In this invention, multiple workstations are set on the loading platform, allowing the loading platform to rotate circumferentially around the rotation axis. During laser processing, the workpiece can switch between the first and second workstations by rotating, so that different cut surfaces of the workpiece are sequentially presented below the laser machine for processing. This reduces the frequency of manual handling, flipping, and reclamping, effectively improving cutting accuracy and work efficiency. In addition, multiple loading platforms are respectively installed on multiple rotating axes, which are arranged side by side in the same direction and are driven by a rotating assembly consisting of synchronous pulleys, synchronous belts, and drive motors. This achieves synchronous rotation control of multiple workstations, ensures consistency of action between multiple loading platforms, reduces the complexity of the control system, and is suitable for automated processing scenarios of large-volume, multi-faceted cutting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the laser cutting device for automotive parts according to this utility model; Figure 2 This is a schematic diagram of the structure of a rotating mechanism in the laser cutting device for automotive parts according to this utility model; Figure 3 This is a schematic diagram of the rotating assembly of the laser cutting device for automotive parts according to this utility model; Figure 4 This is a schematic diagram of another rotating mechanism in the laser cutting device for automotive parts according to this utility model; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle; Figure 6 for Figure 4 A magnified view of a portion of point B in the middle; Explanation of icon numbers: The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0016] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0017] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0018] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0019] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0020] Reference Figures 1 to 6 This embodiment proposes a laser cutting device for automotive parts, comprising: Laser machine 1, used for cutting workpiece 2; The rotating mechanism 3 includes multiple rotating shafts 31 arranged side by side, a rotating assembly 32 that drives the multiple rotating shafts 31 to rotate, and multiple loading platforms 33 that are installed on the multiple rotating shafts 31 in a corresponding manner. The loading platform 33 is used to install the workpiece 2; the loading platform 33 can rotate circumferentially along the rotation axis 31, and the loading platform 33 is provided with a first station and a second station, which are arranged sequentially along the rotation trajectory of the rotation axis 31. The rotating assembly 32 includes synchronous pulleys 321 respectively mounted on multiple rotating shafts 31, a synchronous belt 322 sleeved on the multiple synchronous pulleys 321, and a drive motor 323 that drives the synchronous belt 322 to move.

[0021] In this embodiment, multiple rotating shafts 31 are arranged parallel to each other along the length of the laser cutting device. Each rotating shaft 31 is equipped with a loading platform 33. The multiple loading platforms 33 correspond one-to-one with the multiple rotating shafts 31 and are fixedly connected, so that the loading platform 33 can rotate circumferentially together with the rotating shaft 31.

[0022] The laser cutting device of this embodiment enables different workpieces 2 to be installed and processed on multiple loading platforms 33. The multiple loading platforms 33 are rotatably arranged along the rotation axis 31 and have multiple workstations on their surfaces. After the workpiece 2 is clamped, the workstations can be switched by rotating the loading platform 33, so that the laser machine 1 can process multiple cutting surfaces of the workpiece 2 in sequence. The first and second workstations are not specific structural components, but refer to the relative positions of the loading platform 33 during rotation, which are used to present different processing surfaces of the workpiece 2 below the laser machine 1. The laser cutting device of this embodiment does not require manual flipping of the workpiece 2 or repeated clamping, which significantly improves the processing efficiency and positioning accuracy of multi-faceted cutting.

[0023] It should be noted that in this embodiment, the workpiece 2 has two outer surfaces that need to be laser-cut. Therefore, a first station and a second station are set on each loading table 33, corresponding to the different angles of the two processing surfaces during the rotation process.

[0024] In other embodiments, if the workpiece to be processed has three or more processing surfaces, three or more processing stations can be set on the loading table 33 according to the processing requirements. With the angle control of the rotating shaft 31, multi-face sequential positioning and processing can be realized, thereby further expanding the applicability of this device in the processing of complex structural parts.

[0025] In addition, by setting synchronous pulleys 321 on multiple rotating shafts 31 respectively and connecting them with synchronous belts 322 to form a linkage, the synchronous belts 322 are driven by the drive motor 323 to move, realizing the synchronous rotation of multiple rotating shafts 31, ensuring the rotation coordination between multiple loading platforms 33, and further improving the overall operational stability and automation level of the device, which is suitable for the high-efficiency cutting and processing needs of automotive parts in mass production scenarios.

[0026] Furthermore, the rotating assembly 32 is housed within the protective housing 4, and the rotating shaft 31 passes through the protective housing 4 and is connected to the synchronous wheel 321; a protrusion 311 is provided at one end of the rotating shaft 31 that passes through the synchronous wheel 321, and a limit rod 5 is provided radially on the protrusion 311; limit blocks 41 are respectively provided on both sides of the limit rod 5 within the protective housing 4 to prevent the limit rod 5 from rotating.

[0027] Reference Figure 3 The rotating component 32 is located at the same end of multiple rotating shafts 31 and is housed as a whole within a cover structure, which is the protective shell 4, used to cover the rotating component 32 to avoid dust interference and external force damage, and also to facilitate the arrangement and maintenance of the internal structure.

[0028] In this embodiment, a rotating mechanism 3 is provided with three rotating shafts 31. All three rotating shafts 31 pass through the protective housing 4 and are connected to the corresponding synchronous pulleys 321. One of the rotating shafts 31 has a protrusion 311 at the end that passes through the synchronous pulley 321. The protrusion 311 extends radially outward and is provided with a limiting rod 5. Inside the protective housing 4, limiting blocks 41 are provided on both sides of the rotation path of the limiting rod 5 to block the limiting rod 5 when the rotating shaft 31 rotates to a specific angle, forming a mechanical stop structure, thereby limiting the rotation range of the rotating shaft 31 and the loading table 33, and ensuring that the workpiece 2 is stably switched only within the predetermined processing surface range.

[0029] Furthermore, a baffle 6 is provided on the synchronous pulley 321; a first sensor 42 is provided inside the protective housing 4 corresponding to the baffle 6, and the first sensor 42 is used to detect whether the baffle 6 has reached the predetermined position.

[0030] Reference Figure 3 In this embodiment, three rotating shafts 31 rotate synchronously and are arranged side by side along the same straight line. Among the three rotating shafts 31, the rotating shaft 31 closer to the drive motor 323 is equipped with a limit rod 5, which is used to limit the rotation angle range by mechanically stopping during rotation, preventing the rotating shaft 31 from over-rotating and playing a limit protection role. The rotating shaft 31 farther away from the drive motor 323 is equipped with a semi-circular baffle 6 and a corresponding first sensor 42, which is used to output a rotation position signal during the rotation of the rotating shaft 31, as an electronic feedback signal for the system to judge whether the switching angle is in place. This setting helps to accurately control the switching timing of the rotating station. In order to further ensure the stability of the synchronous belt 322 during the transmission process, tensioning shafts 10 are provided on both sides of the three rotating shafts 31. The tensioning shafts 10 are elastically adjusted and abut against the running path of the synchronous belt 322 to adjust the tension of the synchronous belt 322, preventing the synchronous belt 322 from becoming loose, slipping or deviating during operation, and improving the overall reliability of the machine.

[0031] Furthermore, the loading platform 33 includes two mounting seats 331 arranged sequentially along the length of the rotation axis 31, with the two mounting seats 331 corresponding to the two ends of the workpiece 2 respectively; the rotation mechanism 3 also includes a first positioning component 34 for fixing the workpiece 2 on the mounting seats 331.

[0032] Two mounting bases 331 are located at opposite ends of the loading table 33 and correspond to the two ends of the workpiece 2 to be mounted, providing basic support and limiting for the workpiece 2. The two mounting bases 331 are fixed relative to the loading table 33, and the workpiece 2 is mounted between the two mounting bases 331 by the first positioning component 34 to ensure that it remains in a stable position during rotation. The first positioning component 34 matches the shape of the workpiece 2 and is used to limit the workpiece 2 in the radial and axial directions to prevent it from shifting or loosening during laser cutting.

[0033] Reference Figure 5 In order to realize real-time detection of whether the workpiece 2 is correctly installed, a second sensor 36 is provided on the mounting base 331. The second sensor 36 is installed on the lower side of the installation area of ​​the workpiece 2, corresponding to the set detection surface of the workpiece 2.

[0034] Furthermore, the mounting base 331 includes a main body 3311 and an extension 3312 arranged radially outward along the main body 3311; The first positioning component 34 includes a first positioning block 341 disposed on the main body 3311, a second positioning block 342 disposed on the extension 3312, and also includes a first driving member 343 that drives the first positioning block 341 to extend radially and retract, and a second driving member 344 that drives the second positioning block 342 to extend axially and retract. The second positioning block 342 is also provided with a third positioning block 345 to prevent the workpiece 2 from radially shifting.

[0035] Reference Figure 5 The mounting base 331 includes a main body 3311 and an extension 3312 extending radially outward from the main body 3311. The main body 3311 is the main load-bearing structure and is directly fixedly connected to the rotating shaft 31 by a retaining ring, which is used to support the workpiece 2 as a whole. The extension 3312 is arranged to protrude relative to the main body 3311, which is used to assist in positioning the workpiece 2.

[0036] The first positioning component 34 is disposed on the mounting base 331 and is used to limit and clamp the workpiece 2 in multiple directions after the workpiece 2 is installed between the two mounting bases 331; the first positioning component 34 includes: A first positioning block 341 is provided on the main body 3311. The first positioning block 341 is located on the side of the main body 3311 facing the workpiece 2 and is used to limit the workpiece 2 in the radial direction. The first positioning block 341 can extend out of the main body 3311 in the radial direction or retract into the main body 3311 under the action of the first driving member 343 to adapt to the positioning requirements of workpieces 2 of different shapes or sizes. The second positioning block 342 provided on the extension 3312 is used to limit the workpiece 2 in the axial direction. Under the action of the second driving member 344, the second positioning block 342 extends out of the extension 3312 or retracts into the extension 3312 in the axial direction of the rotation shaft 31, so as to facilitate clamping the end face of the workpiece 2. The outer end of the second positioning block 342 is also provided with a third positioning block 345. The third positioning block 345 is used to prevent the workpiece 2 from radially shifting during the positioning process, thereby further improving the stability and accuracy of the overall clamping and positioning.

[0037] The first driving component 343 and the second driving component 344 are respectively arranged inside the mounting base 331. The first driving component 343 and the second driving component 344 are installed at the end of the mounting base 331 away from the workpiece 2. Existing linear modules such as cylinders or electric push rods can be used to drive the extension and retraction of the positioning block. The external structure of the first positioning block 341, the second positioning block 342 and the third positioning block 345 can be customized according to the outer contour of different workpieces 2 to improve the adaptability to various parts.

[0038] Specifically, the first positioning block 341 is disposed on the main body 3311 and is pushed outward in the radial direction during clamping to fit against the bottom surface of the workpiece 2, providing a primary limiting function; the second positioning block 342 is disposed on the extension 3312 and is pushed inward in the axial direction during clamping to clamp the end of the workpiece 2, forming a positive thrust; the third positioning block 345 is disposed on the second positioning block 342 and is located near the contact end with the workpiece 2, providing auxiliary limiting for the edge of the workpiece 2 to prevent radial displacement or rotational misalignment of the workpiece 2 during the force application process; the three components form a stable three-point clamping logic through structural arrangement and drive coordination, which not only ensures a reasonable distribution of clamping force direction but also improves clamping accuracy and anti-interference capability during operation, making it suitable for laser cutting processes with high positioning requirements.

[0039] Preferably, each driving component corresponds to at least one positioning block. Alternatively, it can be designed so that one driving component drives multiple positioning blocks to move synchronously, thereby adapting to the clamping requirements of workpieces 2 of different sizes or structural complexities and improving the versatility of the structure and the flexibility of the layout.

[0040] Furthermore, the loading platform 33 includes a mounting plate 332; the mounting plate 332 is arranged along the length direction of the rotation axis 31; the rotation mechanism 3 also includes a second positioning component 35 for fixing the workpiece 2 on the mounting plate 332.

[0041] Reference Figure 6 The lower end of the mounting plate 332 is fixedly mounted on the loading platform 33 structure by a snap ring, and the upper end is used to support the installation of the workpiece 2. The mounting plate 332 has multiple preset installation positions, and the second positioning component 35 is used to position the workpiece 2 in the specified position to improve installation flexibility.

[0042] Furthermore, the second positioning component 35 includes a positioning post 351 disposed on the mounting plate 332, and also includes a clamping member 352 for pressing the workpiece 2 against the surface of the mounting plate 332.

[0043] Reference Figure 6The second positioning component 35 includes: a positioning post 351 disposed on the mounting plate 332, the positioning post 351 being a columnar protrusion perpendicular to the mounting plate 332, used to insert into the positioning hole on the workpiece 2, providing lateral limiting and positioning functions; and a clamping component 352, which is a quick-clamping mechanism including a fixed seat, a pressure rod, and a locking component, disposed on the side of the mounting plate 332, used to press the workpiece 2 against the surface of the mounting plate 332. During workpiece 2 installation, the operator places the workpiece 2 onto the positioning post 351 and then uses the clamping component 352 to hold it, forming a reliable positioning and clamping effect.

[0044] In this embodiment, the clamping component 352 has a compact structure and quick clamping action, making it suitable for processes involving frequent repetitive clamping. The size and position of the positioning pin 351 can be adjusted according to the specific shape of the workpiece 2 and the arrangement of the positioning holes. Changing the mounting hole position or replacing the positioning pin 351 with one of different lengths can achieve tooling compatibility, improving the system's versatility and adaptability.

[0045] It should be noted that the loading table 33 structure in this embodiment can be designed differently according to the shape and size of the workpiece 2 to be processed, so as to improve clamping efficiency and adaptability.

[0046] When the workpiece 2 to be processed is small in size and there are multiple similar workpieces 2 that need to be processed at the same time, it is preferable to use the mounting plate 332 as the main structure of the loading table 33. By setting multiple positioning columns 351 and clamping parts 352 side by side on the mounting plate 332, multiple workpieces 2 can be quickly clamped and processed uniformly, which is suitable for high-efficiency cutting scenarios of batch production and small-sized workpieces 2.

[0047] For larger workpieces 2 with longer structures or different shapes at both ends, it is preferable to use a loading table 33 in the form of a mounting base 331. The two mounting bases 331 support the two ends of the workpiece 2 respectively, and are clamped with a multi-directional adjustable positioning component, which can better maintain the posture of the workpiece 2 and improve clamping stability and cutting accuracy.

[0048] By combining the above two structural designs, the laser cutting device can have good structural variability and a wide range of workpiece adaptability.

[0049] Furthermore, the two ends of the multiple rotating shafts 31 are respectively mounted on two oppositely arranged fixed plates 37, and the protective housing 4 is disposed on one of the fixed plates 37. The two ends of the multiple rotating shafts 31 are respectively mounted on the fixed plates 37 on both sides, forming a stable rotation support structure, which helps to improve the rigidity and coaxiality of the loading platform 33 during rotation and avoids swaying or deviation during operation. The rotating components 32 are centrally mounted on one of the fixed plates 37 to uniformly arrange components such as the drive motor 323, synchronous belt 322, and synchronous pulley 321, resulting in a compact structure and easy maintenance.

[0050] Furthermore, there are two rotating mechanisms 3, which are symmetrically arranged on the left and right sides of the laser machine 1.

[0051] This embodiment features two rotating mechanisms 3, symmetrically arranged on the left and right sides of the laser machine 1. The two sets of rotating mechanisms 3 operate independently, forming a dual-station processing structure. When the laser machine 1 is cutting a workpiece 2 on one of the rotating mechanisms 3, the other rotating mechanism 3 can be loaded or unloaded by the operator, significantly improving processing cycle time and production efficiency, making it suitable for laser processing scenarios with high continuity requirements.

[0052] Furthermore, it also includes a Z-axis motion mechanism 7 that drives the laser machine 1 to move up and down, an X-axis motion mechanism 8 that drives the laser machine 1 to reciprocate along the length of the rotation axis 31, and a Y-axis motion mechanism 9 that drives the laser machine 1 to move back and forth between the two rotation mechanisms 3.

[0053] To achieve high-precision, multi-directional movement of the laser machine 1 among multiple loading platforms 33, the device also includes a three-axis linkage movement structure: the Z-axis motion mechanism 7 drives the laser machine 1 to move vertically up and down to adjust the position of the laser head; the X-axis motion mechanism 8 drives the laser machine 1 to move along the length of the rotation axis 31 to achieve cutting coverage at different length positions; and the Y-axis motion mechanism 9 drives the laser machine 1 to move laterally between the two rotation mechanisms 3 to achieve alternating processing between different loading platforms 33. The three-axis structure works in concert to ensure efficient and precise operation of the laser head at multiple positions and angles.

[0054] The above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A laser cutting device for automotive parts, characterized in that, include: Laser machines are used to cut workpieces; The rotating mechanism includes multiple rotating shafts arranged side by side, a rotating assembly that drives the multiple rotating shafts to rotate, and multiple loading platforms that are installed on the multiple rotating shafts one by one. The loading platform is used to install the workpiece; the loading platform can rotate circumferentially along the rotation axis, and the loading platform is provided with a first station and a second station, the first station and the second station being arranged sequentially along the rotation trajectory of the rotation axis; The rotating assembly includes synchronous pulleys respectively mounted on multiple rotating shafts, a synchronous belt sleeved on multiple synchronous pulleys, and a drive motor for driving the synchronous belt to move.

2. The laser cutting apparatus for automotive parts according to claim 1, characterized in that, The rotating assembly is housed within a protective housing, and the rotating shaft passes through the protective housing and is connected to the synchronous pulley. One end of the rotating shaft passing through the synchronous pulley has a protrusion, and a limit rod is provided radially on the protrusion. Limit blocks are provided on both sides of the limit rod within the protective housing to prevent the limit rod from rotating.

3. The laser cutting apparatus for automotive parts according to claim 2, characterized in that, A baffle is provided on the synchronous pulley; a first sensor is provided inside the protective housing corresponding to the baffle, and the first sensor is used to detect whether the baffle has reached a predetermined position.

4. The laser cutting apparatus for automotive parts according to claim 1, characterized in that, The loading platform includes two mounting seats arranged sequentially along the length of the rotation axis, with the two mounting seats corresponding to the two ends of the workpiece respectively; the rotation mechanism also includes a first positioning component for fixing the workpiece on the mounting seats.

5. The laser cutting apparatus for automotive parts according to claim 4, characterized in that, The mounting base includes a main body and an extension disposed radially outward along the main body; The first positioning component includes a first positioning block disposed on the main body, a second positioning block disposed on the extension, and a first driving member that drives the first positioning block to extend radially and retract, and a second driving member that drives the second positioning block to extend axially and retract. The second positioning block is also provided with a third positioning block to prevent the workpiece from radially shifting.

6. The laser cutting apparatus for automotive parts according to claim 1, characterized in that, The loading platform includes a mounting plate; the mounting plate is arranged along the length direction of the rotation axis; the rotation mechanism further includes a second positioning component for fixing the workpiece on the mounting plate.

7. The laser cutting apparatus for automotive parts according to claim 6, characterized in that, The second positioning component includes a positioning post disposed on the mounting plate, and also includes a clamping member for pressing the workpiece against the surface of the mounting plate.

8. The laser cutting apparatus for automotive parts according to claim 2, characterized in that, The two ends of the plurality of rotating shafts are respectively mounted on two oppositely arranged fixed plates, and the protective housing is disposed on the fixed plates.

9. The laser cutting apparatus for automotive parts according to claim 1, characterized in that, There are two rotating mechanisms, which are symmetrically arranged on the left and right sides of the laser machine.

10. The laser cutting apparatus for automotive parts according to claim 9, characterized in that, It also includes a Z-axis motion mechanism that drives the laser machine to move up and down, an X-axis motion mechanism that drives the laser machine to reciprocate along the length of the rotation axis, and a Y-axis motion mechanism that drives the laser machine to move back and forth between the two rotation mechanisms.

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