A multi-band z-axis assembly for a three-dimensional laser processing apparatus

Abstract

The utility model discloses a kind of multi-band Z-axis assemblies for three-dimensional laser processing equipment, including optical fiber laser output connector, rotating shaft assembly, laser cutting head, the Z-axis assembly shell of built-in light guide cylinder, displacement type mirror assembly is arranged between optical fiber laser output connector and light guide cylinder, Z-axis mirror seat body with multiple optical mirrors in Z-axis mirror seat on displacement type mirror assembly can rotate to receive and reflect laser;Polyhedral mirror seat body that can rotate to receive and reflect different wavelength laser is equipped in C-axis mirror seat and B-axis mirror seat of rotating shaft assembly, there is one more optical fiber laser mirror on polyhedral mirror seat body than on Z-axis mirror seat body;Focus mirror socket of insertion focus mirror seat is equipped on laser cutting head, optical focus mirror on focus mirror seat can be adapted with optical mirror on polyhedral mirror seat body.The utility model can realize the light path switching of multiple different wavelength lasers.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically a multi-band Z-axis component for three-dimensional laser processing equipment. Background Technology

[0002] Laser processing technology boasts advantages such as high precision, high efficiency, non-contact operation, and high automation, and has been widely applied in various industrial scenarios including cutting, welding, marking, drilling, and surface treatment. The effectiveness of laser processing largely depends on the degree of matching between the laser wavelength and the optical properties of the material.

[0003] Currently, mainstream industrial laser processing equipment on the market typically uses a single type of laser as the light source. For example, 10.6μm wavelength carbon dioxide lasers are mainly used for cutting and engraving non-metallic materials, 1.06μm wavelength fiber lasers are mainly used for cutting and welding metallic materials, 532nm wavelength green lasers are mainly used for processing highly reflective metals (such as gold, silver, and copper), 450nm wavelength blue lasers are mainly used for copper welding, high reflectivity metal welding, and other fields. 355nm wavelength ultraviolet lasers can achieve extremely high processing accuracy and a very small heat-affected zone, and are particularly suitable for precision micromachining of brittle materials (such as glass and sapphire), polymers, and dicing of semiconductor wafers.

[0004] This reveals a significant limitation of existing technology: a single laser device typically outputs only one specific wavelength, thus restricting its processing to a limited range of materials. When users need to process workpieces of various materials, they must purchase multiple laser devices with different wavelengths. This not only incurs substantial equipment costs, floor space requirements, and energy consumption, but also complicates the production process, reduces flexibility and intelligence, and fails to meet the urgent demands of modern intelligent manufacturing for "multi-functionality" and "high efficiency and compatibility."

[0005] Therefore, this current technological status quo severely restricts the application and promotion of laser processing technology in emerging fields such as multi-material composite manufacturing and flexible production lines.

[0006] To change this technological status quo, it is necessary to develop supporting products that can easily switch between different optical paths. Utility Model Content

[0007] The purpose of this invention is to address the problems existing in the prior art by providing a multi-band Z-axis component for three-dimensional laser processing equipment. This multi-band Z-axis component can be used in the design of multi-band three-dimensional laser processing equipment or in the upgrading and transformation of existing single-band laser processing equipment.

[0008] The objective of this utility model is achieved through the following technical solution:

[0009] A multi-band Z-axis assembly for a three-dimensional laser processing equipment includes a fiber laser output connector, a rotary axis assembly, a laser cutting head, and a Z-axis assembly housing with a built-in light guide tube. The assembly is characterized by: a displacement mirror assembly arranged between the fiber laser output connector and the inlet side of the light guide tube; a Z-axis mirror mount on the displacement mirror assembly that can move relative to the light guide tube to select whether to use a fiber laser or other lasers; and a Z-axis mirror mount body with multiple optical mirrors that can rotate to receive and reflect other lasers; both the C-axis and B-axis mirror mounts of the rotary axis assembly are equipped with multi-faceted mirror mount bodies that can rotate to receive and reflect lasers of different wavelengths. The multi-faceted mirror mount bodies are equipped with the same optical mirrors as those on the Z-axis mirror mount body, plus one fiber laser mirror; the laser cutting head has a focusing mirror socket for inserting a focusing mirror mount, and the optical focusing mirror on the focusing mirror mount is compatible with the optical mirror on the multi-faceted mirror mount body.

[0010] The Z-axis mirror mount body is a hexahedral mirror mount capable of mounting four optical mirrors; the polyhedral mirror mount body is a heptahedral mirror mount capable of mounting five optical mirrors; the laser cutting head is equipped with five types of focusing mirror mounts; and the Z-axis assembly housing is provided with a focusing mirror mount storage box capable of accommodating all the focusing mirror mounts.

[0011] The Z-axis mirror mount body is equipped with a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector. The polyhedral mirror mount body is equipped with a carbon dioxide laser reflector, a fiber laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector. The focusing lens socket on the laser cutting head can be inserted into a carbon dioxide laser focusing lens mount, a fiber laser focusing lens mount, a green laser focusing lens mount, a blue laser focusing lens mount, or an ultraviolet laser focusing lens mount, respectively.

[0012] The displacement mirror assembly includes a displacement assembly base plate, a displacement guide rail, a drive mechanism, and a Z-axis mirror mount. The displacement guide rail is mounted on the displacement assembly base plate, and the Z-axis mirror mount is slidably connected to the displacement guide rail. The drive mechanism can drive the Z-axis mirror mount to reciprocate along the displacement guide rail. The light outlet at the bottom of the Z-axis mirror mount corresponds to the light outlet of the displacement assembly in the middle of the displacement assembly base plate. When the Z-axis mirror mount moves to the working position, it is positioned between the fiber laser output connector and the light guide tube, and the light outlet of the Z-axis mirror mount is coaxially connected to the light guide tube. When the Z-axis mirror mount moves to the waiting position on one side of the light guide tube, the light outlet of the fiber laser output connector is coaxially suspended directly above the light guide tube, and the light guide tube can receive the fiber laser output from the fiber laser output connector.

[0013] The displacement reflector assembly also includes a limiting block, a retractable magnetic induction switch, and an extendable magnetic induction switch. The limiting block, located on one side of the displacement assembly's base plate, limits the working position of the Z-axis reflector mount. The retractable and extendable magnetic induction switches detect the position of the Z-axis reflector mount and are linked to the drive mechanism. When the Z-axis reflector mount reaches the working position, it contacts the limiting block, accurately positioning the Z-axis reflector mount. The corresponding retractable magnetic induction switch of the drive mechanism sends a signal indicating that the Z-axis reflector mount has reached the working position, allowing the control center to confirm that the Z-axis reflector mount has reached the working position. When the Z-axis reflector mount moves to a waiting position away from the limiting block, the corresponding extendable magnetic induction switch of the drive mechanism sends a signal indicating that the Z-axis reflector mount is in the waiting position, allowing the control center to confirm that the Z-axis reflector mount is in the waiting position.

[0014] The Z-axis reflector mount includes a Z-axis mount body, a Z-axis mount housing, a Z-axis mount servo motor, and a Z-axis mount sensor. The Z-axis mount body, which houses multiple optical reflectors, is contained within the Z-axis mount housing. The motor output end of the Z-axis mount servo motor, mounted on the Z-axis mount housing, is fixedly connected to the Z-axis mount body. The Z-axis mount servo motor drives the Z-axis mount body to rotate around the motor output end as an axis, rotating the required optical reflector to the reflection position. A Z-axis mount sensor is provided on the Z-axis mount housing opposite the Z-axis mount servo motor to identify the type of optical reflector in the reflection position. A lens marking structure corresponding to the type of optical reflector is arranged on the end face of the Z-axis mount body away from the Z-axis mount servo motor. The Z-axis mount sensor determines the type of optical reflector by sensing the lens marking structure.

[0015] Both ends of the Z-axis mirror mount body serve as motor connection surfaces, and the circumference is divided into N lens mounting surfaces, where N≥2. The motor output end of the Z-axis mirror mount servo motor passes through the Z-axis mirror mount housing and through the geometric center of the two motor connection surfaces before being fixedly connected to the Z-axis mirror mount body. The Z-axis mirror mount body and the Z-axis mirror mount housing are connected by bearings. Laser reflectors capable of receiving and reflecting lasers of different wavelengths are respectively mounted on the lens mounting surfaces. Lens marking structures corresponding to the types of optical reflectors are arranged on the side walls of the lens mounting surfaces.

[0016] The C-axis reflector mount is mounted on a C-axis capable of rotation in a horizontal plane, and the B-axis reflector mount is mounted on a B-axis capable of swinging in a vertical plane. Both the C-axis and B-axis reflector mounts are replaceable reflector mounts and each includes a polyhedral reflector mount body, a polyhedral reflector mount housing, a polyhedral reflector mount servo motor, and a polyhedral reflector mount sensor. The polyhedral reflector mount body, which houses multiple optical reflectors, is contained within the polyhedral reflector mount housing. The motor output terminal of the polyhedral reflector mount servo motor, mounted on the polyhedral reflector mount housing, is connected to the polyhedral reflector... The mirror mount body is fixedly connected, and the polyhedral mirror mount servo motor drives the polyhedral mirror mount body to rotate around the motor output end as the axis, rotating the required optical mirror to the reflection position. On the polyhedral mirror mount housing opposite the polyhedral mirror mount body, there is a polyhedral mirror mount sensor for identifying the type of optical mirror in the reflection position. On the end face of the polyhedral mirror mount body away from the polyhedral mirror mount servo motor, there is a lens marking structure that corresponds one-to-one with the type of optical mirror. The polyhedral mirror mount sensor determines the type of optical mirror by sensing the lens marking structure.

[0017] Both ends of the polyhedral mirror mount body serve as motor connection surfaces, and the circumferential surface is divided into N+1 lens mounting surfaces, where N≥2. The motor output end of the polyhedral mirror mount servo motor passes through the polyhedral mirror mount shell and through the geometric center of the two motor connection surfaces before being fixedly connected to the polyhedral mirror mount body. Laser reflectors capable of receiving and reflecting lasers of different wavelengths are respectively mounted on the lens mounting surfaces. Lens marking structures corresponding one-to-one with the types of optical reflectors are arranged on the side walls of the lens mounting surfaces.

[0018] The focusing lens socket is equipped with a focusing lens identification module, which is used to identify the type of optical focusing lens on the focusing lens mount. The focusing lens identification module includes multiple contact sensors arranged on the inner wall of the focusing lens socket and a lens marking structure arranged on the front end of the focusing lens mount. The lens marking structure of different optical focusing lenses is unique, which enables the focusing lens identification module to identify the type of optical focusing lens inserted into the focusing lens mount in the focusing lens socket.

[0019] This invention provides a multi-band Z-axis assembly for a three-dimensional laser processing equipment, which can switch between five different wavelength laser paths within the same laser processing equipment, namely, switching between carbon dioxide laser, fiber laser, green laser, blue laser, and ultraviolet laser paths. When the laser processing equipment needs to use the carbon dioxide laser path, the displacement mirror assembly is placed in the working position, and carbon dioxide laser optical lenses are configured at the working position of the rotary axis assembly and the laser cutting head. When the laser processing equipment needs to use the green laser, blue laser, or ultraviolet laser path, the path switching method is the same as for the carbon dioxide laser path. Similarly, when the fiber laser path is needed, the displacement mirror assembly is placed in the waiting position, and fiber laser optical lenses are configured at the working position of the rotary axis assembly and the laser cutting head. There are four optical lenses in the Z-axis assembly: the displacement mirror assembly, the C-axis and B-axis mirror mounts in the rotary axis assembly, and the focusing lens mount in the laser cutting head.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The multi-band Z-axis assembly provided by this utility model achieves the transmission and output of lasers of different wavelengths in the same laser cutting equipment by setting optical elements and conversion devices suitable for different wavelengths in the optical path system. This makes it suitable for laser processing of materials of different wavelengths, meets the technical requirements of production lines for flexible processing of multiple materials, and reduces equipment purchase costs, factory space occupation costs and equipment maintenance costs for customers. It has a strong market competitiveness. Attached Figure Description

[0022] Appendix Figure 1 A front view of a multi-band Z-axis assembly for a three-dimensional laser processing equipment provided by this utility model;

[0023] Appendix Figure 2 A schematic diagram of the structure of a multi-band Z-axis assembly for a three-dimensional laser processing equipment provided by this utility model;

[0024] Appendix Figure 3 A cross-sectional view of the multi-band Z-axis component of the displacement reflector assembly provided by this utility model when it is in the waiting position;

[0025] Appendix Figure 4 A cross-sectional view of the multi-band Z-axis component of the displacement reflector assembly provided by this utility model when it is in the working position.

[0026] Appendix Figure 5 This is a schematic diagram of the displacement reflector assembly provided by this utility model;

[0027] Appendix Figure 6Axonometric view of the lower angle of the displacement reflector assembly provided by this utility model;

[0028] Appendix Figure 7 Exploded view of the displacement reflector assembly provided by this utility model;

[0029] Appendix Figure 8 A schematic diagram of the Z-axis mirror mount body and servo motor structure provided by this utility model;

[0030] Appendix Figure 9 A schematic diagram of the C-axis mirror mount body and servo motor structure provided by this utility model;

[0031] Appendix Figure 10 Main view of the rotating shaft assembly provided by this utility model:

[0032] Appendix Figure 11 A schematic diagram of the laser cutting head and focusing lens mount provided by this utility model.

[0033] Wherein: 1—Fiber laser output connector; 2—Rotation axis assembly; 21—C-axis reflector mount; 22—B-axis reflector mount; 23—Polyhedral reflector mount body; 24—Polyhedral reflector mount housing; 25—Polyhedral reflector mount servo motor; 26—Polyhedral reflector mount sensor; 3—Laser cutting head; 31—Focusing lens mount; 32—Focusing lens socket; 4—Light guide tube; 5—Z-axis assembly housing; 51—Focusing lens mount storage box; 6—Displacement reflector assembly; 61—Z-axis reflector... Mirror mount; 611—Z-axis mirror mount body; 6111—motor connection surface; 6112—lens mounting surface; 6113—laser reflector; 612—Z-axis mirror mount housing; 613—Z-axis mirror mount servo motor; 614—displacement component light outlet; 615—Z-axis mirror mount sensor; 616—boss; 617—groove; 62—displacement guide rail; 63—drive mechanism; 64—displacement component base plate; 65—limit block; 66—retractable magnetic induction switch; 67—extended magnetic induction switch. Detailed Implementation

[0034] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0035] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0036] like Figure 1-11 As shown: A multi-band Z-axis assembly for a three-dimensional laser processing equipment includes a fiber laser output connector 1, a rotary axis assembly 2, a laser cutting head 3, and a Z-axis assembly housing 5 with a built-in light guide tube 4. A displacement mirror assembly 6 is arranged between the fiber laser output connector 1 and the inlet side of the light guide tube 4. The Z-axis mirror mount 61 on the displacement mirror assembly 6 can move relative to the light guide tube 6 to select whether to use a fiber laser or other lasers. The Z-axis mirror mount 61 is used when the fiber laser is not in use. The Z-axis mirror mount body 611 with multiple optical mirrors in the Z-axis mirror mount 61 can rotate to receive and reflect other lasers. A C-axis mirror mount 21 is installed on a horizontal plane. The rotating C-axis and B-axis reflector mounts 22 are mounted on the B-axis, which can swing in the vertical plane. The C-axis reflector mounts 21 and B-axis reflector mounts 22, which have the same structure, are replaceable reflector mounts. Both the C-axis reflector mounts 21 and B-axis reflector mounts 22 are equipped with a polyhedral reflector mount body 23 that can rotate to receive and reflect lasers of different wavelengths. The polyhedral reflector mount body 23 is equipped with the same optical reflector as the Z-axis mirror mount body 611, and has an additional fiber laser reflector. The laser cutting head 3 is equipped with a focusing lens socket 3 into which a focusing lens mount 31 can be inserted. The optical focusing lens on the focusing lens mount 31 can be adapted to the optical reflector on the polyhedral reflector mount body 23.

[0037] In one embodiment of the multi-band Z-axis assembly for three-dimensional laser processing equipment provided by this utility model, the Z-axis mirror mount body 611 is a hexahedral mirror mount capable of mounting four optical mirrors, and the polyhedral mirror mount body 23 is a heptahedral mirror mount capable of mounting five optical mirrors. The laser cutting head 3 is equipped with five types of focusing mirror mounts 31. The number of optical mirrors on the Z-axis mirror mount body 611 and the polyhedral mirror mount body 23 can be configured as needed and is not limited to the aforementioned quantity restrictions. In addition, a focusing mirror mount storage box 51 is provided on the Z-axis assembly housing 5. The focusing mirror mount storage box 51 has five slots that correspond one-to-one with the five types of focusing mirror mounts 31. Each type of focusing mirror mount 31 is inserted into its corresponding slot. When a certain focusing mirror mount 31 is needed, it is taken out of the slot, and then an empty mirror mount without a lens (which can be placed in the focusing mirror socket 32 ​​under normal circumstances) is inserted into this temporarily empty slot to prevent dust from entering.

[0038] A specific embodiment is as follows: a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector are mounted on the Z-axis mirror mount body 611; a carbon dioxide laser reflector, a fiber laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector are mounted on the polyhedral reflector mount body 23; and a focusing lens socket 32 ​​on the laser cutting head 3 can be used to insert a carbon dioxide laser focusing lens mount, a fiber laser focusing lens mount, a green laser focusing lens mount, a blue laser focusing lens mount, or an ultraviolet laser focusing lens mount, respectively. When the Z-axis mirror mount 611 uses a carbon dioxide laser reflector, the polyhedral mirror mount 23 uses a carbon dioxide laser reflector, and the focusing lens socket 32 ​​is inserted into a carbon dioxide laser focusing lens mount with a carbon dioxide laser focusing lens; when the Z-axis mirror mount 611 is not used, the polyhedral mirror mount 23 uses a fiber laser reflector, and the focusing lens socket 32 ​​is inserted into a fiber laser focusing lens mount with a fiber laser focusing lens; when the Z-axis mirror mount 611 uses a green laser reflector, the polyhedral mirror mount 23 uses... A green laser reflector and focusing lens socket 32 ​​are inserted into a green laser focusing lens mount with a green laser focusing lens; when the Z-axis mirror mount body 611 uses a blue laser reflector, the polyhedral mirror mount body 23 uses a blue laser reflector and focusing lens socket 32 ​​to insert into a blue laser focusing lens mount with a blue laser focusing lens; when the Z-axis mirror mount body 611 uses an ultraviolet laser reflector, the polyhedral mirror mount body 23 uses an ultraviolet laser reflector and focusing lens socket 32 ​​to insert into an ultraviolet laser focusing lens mount with an ultraviolet laser focusing lens.

[0039] like Figure 5-8As shown: The displacement mirror assembly 6 includes a displacement assembly base plate 64, a displacement guide rail 62, a drive mechanism 63, a Z-axis mirror mount 61, a limit block 65, a retraction magnetic induction switch 66, and an extension magnetic induction switch 67. The displacement guide rail 62 is mounted on the displacement assembly base plate 61, and the Z-axis mirror mount 61 is slidably connected to the displacement guide rail 62. The drive mechanism 63 can drive the Z-axis mirror mount 61 to reciprocate along the displacement guide rail 62. The light outlet at the bottom of the Z-axis mirror mount 61 is connected to the bottom of the displacement assembly. The light outlet 614 of the displacement component in the middle of plate 64 corresponds to the Z-axis reflector mount 61. When the Z-axis reflector mount 61 moves to the working position, the Z-axis reflector mount 61 is located between the fiber laser output connector 1 and the light guide tube 4, and the light outlet of the Z-axis reflector mount 61 is coaxially connected with the light guide tube 4. When the Z-axis reflector mount 61 moves to the waiting position on one side of the light guide tube 4, the light outlet of the fiber laser output connector 1 is coaxially suspended directly above the light guide tube 4, and the light guide tube 4 can receive the fiber laser output by the fiber laser output connector 1. A limiting block 65, located on one side of the displacement assembly base plate 64, is used to limit the working position of the Z-axis reflector mount 61. A retractable magnetic induction switch 66 and an extended magnetic induction switch 67 are used to detect the position of the Z-axis reflector mount 61 and are linked to the drive mechanism 63. When the Z-axis reflector mount 61 reaches the working position, it contacts the limiting block 65. At this time, the limiting block 65 accurately positions the Z-axis reflector mount 61 in place, and the retractable magnetic induction switch 66 corresponding to the drive mechanism 63 sends a signal indicating that the Z-axis reflector mount 61 has reached the working position. The control center can then confirm that the Z-axis reflector mount 61 has reached the working position. When the Z-axis reflector mount 61 moves to a waiting position away from the limiting block 65, the extended magnetic induction switch 67 corresponding to the drive mechanism 63 sends a signal indicating that the Z-axis reflector mount 61 has reached the waiting position. The control center can then confirm that the Z-axis reflector mount 61 is in the waiting position.

[0040] like Figure 7-8As shown: The Z-axis reflector mount 61 includes a Z-axis mount body 611, a Z-axis mount housing 612, a Z-axis mount servo motor 613, and a Z-axis mount sensor 615. The Z-axis mount body 611, which houses multiple optical reflectors, is contained within the Z-axis mount housing 612. The motor output terminal of the Z-axis mount servo motor 613, mounted on the Z-axis mount housing 612, is fixedly connected to the Z-axis mount body 611. The Z-axis mount servo motor 613 drives the Z-axis mount body 611 via motor output. The output end is a rotating axis, which rotates the required optical mirror to the reflection position. A Z-axis mirror mount sensor 615 is provided on the Z-axis mirror mount housing 612 opposite to the Z-axis mirror mount servo motor 613 to identify the type of optical mirror in the reflection position. A lens marking structure corresponding to the type of optical mirror is arranged on the end face of the Z-axis mirror mount body 611 away from the Z-axis mirror mount servo motor 613. The Z-axis mirror mount sensor 615 determines the type of optical mirror by sensing the lens marking structure. Specifically, both ends of the Z-axis mirror mount body 611 serve as motor connection surfaces 6111, and the circumference is divided into N lens mounting surfaces 6112. The motor output end of the Z-axis mirror mount servo motor 613 passes through the Z-axis mirror mount housing 612 and through the geometric center of the two motor connection surfaces 6111, and is fixedly connected to the Z-axis mirror mount body 611. The Z-axis mirror mount body 611 and the Z-axis mirror mount housing 612 are connected by bearings. Laser reflectors 6113 capable of receiving and reflecting lasers of different wavelengths are respectively installed on the lens mounting surfaces 6112. Lens marking structures corresponding to the types of optical reflectors are arranged on the side walls of the lens mounting surfaces 6112.

[0041] like Figure 1-4 , Figure 9 , Figure 10As shown, the C-axis reflector mount 21 is mounted on the C-axis, which can rotate in the horizontal plane, and the B-axis reflector mount 22 is mounted on the B-axis, which can swing in the vertical plane. Both the C-axis reflector mount 21 and the B-axis reflector mount 22 are replaceable reflector mounts, and both include a polyhedral reflector mount body 23, a polyhedral reflector mount housing 24, a polyhedral reflector mount servo motor 25, and a polyhedral reflector mount sensor 26. The polyhedral reflector mount body 23, which contains multiple optical reflectors, is housed in the polyhedral reflector mount housing 24. The motor output terminal of the polyhedral reflector mount servo motor 25, which is mounted on the polyhedral reflector mount housing 24, is connected to the polyhedral reflector mount sensor 26. The mirror mount body 23 is fixedly connected, and the polyhedral mirror mount servo motor 25 drives the polyhedral mirror mount body 23 to rotate around the motor output end as the axis, rotating the required optical mirror to the reflection position. A polyhedral mirror mount sensor 26 is provided on the polyhedral mirror mount housing 24 opposite to the polyhedral mirror mount body 23 to identify the type of optical mirror in the reflection position. A lens marking structure corresponding to the type of optical mirror is arranged on the end face of the polyhedral mirror mount body 23 away from the polyhedral mirror mount servo motor 25. The polyhedral mirror mount sensor 26 determines the type of optical mirror by sensing the lens marking structure. Specifically, both ends of the polyhedral mirror mount body 23 serve as motor connection surfaces 6111, and the circumference is divided into N+1 lens mounting surfaces 6112. The motor output end of the polyhedral mirror mount servo motor 25 passes through the polyhedral mirror mount housing 24 and through the geometric center of the two motor connection surfaces 6111, and is fixedly connected to the polyhedral mirror mount body 23. Laser reflectors 6113 capable of receiving and reflecting lasers of different wavelengths are respectively installed on the lens mounting surfaces 6112. Lens marking structures corresponding to the types of optical reflectors are arranged on the side walls of the lens mounting surfaces 6112.

[0042] like Figure 11 As shown, a focusing lens identification module is arranged inside the focusing lens socket 3. This focusing lens identification module is used to identify the type of optical focusing lens on the focusing lens mount 31. The focusing lens identification module includes multiple contact sensors arranged on the inner wall of the focusing lens socket 3 and a lens marking structure arranged at the front end of the focusing lens mount 31. The lens marking structure of different optical focusing lenses is unique, which enables the focusing lens identification module to identify the type of optical focusing lens inserted into the focusing lens mount 31 inside the focusing lens socket 3: carbon dioxide laser focusing lens, fiber laser focusing lens, green laser focusing lens, blue laser focusing lens and ultraviolet laser focusing lens.

[0043] When a fiber laser optical path is required, follow these steps to set it up:

[0044] S1. The control center sends a command to the drive mechanism 63 of the displacement mirror assembly 6, so that it drives the Z-axis mirror mount 61 to the waiting position, so that the light outlet of the fiber laser output connector 1 is directly and coaxially suspended above the light guide tube 4.

[0045] S2. The control center sends commands to the servo motors 25 of the polyhedral mirror mounts 21 and 22 of the C-axis mirror mount 21 and 22 of the B-axis mirror mount 22, respectively, so that they drive the polyhedral mirror mount bodies 23 in the C-axis mirror mount 21 and 22 of the B-axis mirror mount 22 to rotate, so that the lens mounting surfaces 6112 of the fiber laser mirrors mounted on the two polyhedral mirror mount bodies 23 rotate to the reflection position.

[0046] S3. The control center uses the motor angle information fed back by the polyhedral mirror mount servo motors 25 of the C-axis mirror mount 21 and the B-axis mirror mount 22, and the position information of the lens mounting surface 6112 fed back by the polyhedral mirror mount sensors 25 on the two mirror mounts, to determine whether the fiber laser mirrors on the two mirror mounts are in the reflection position. If they are in the reflection position, the control center sends the positioning information back to the control center. If they have not yet reached the reflection position, the control center sends a command to the corresponding polyhedral mirror mount servo motor 25 to drive the corresponding polyhedral mirror mount body 23 to rotate until the fiber laser mirror is in the reflection position.

[0047] S4. Manually insert the fiber laser focusing lens mount into the focusing lens socket 32 ​​of the laser cutting head 3. This completes the setup of the fiber laser optical path.

[0048] When a carbon dioxide laser optical path is required, follow these steps to set it up:

[0049] S1. The control center sends a command to the drive mechanism 63 of the displacement mirror assembly 6, so that it drives the Z-axis mirror mount 61 to the working position, that is, to the position directly below the fiber laser output connector 1, so that the light outlet 614 of the displacement mirror assembly 6 is coaxially opposite to the light guide tube 4.

[0050] S2. The control center sends commands to the corresponding servo motors on the Z-axis reflector mount 61, C-axis reflector mount 21 and B-axis reflector mount 22 respectively, so that they drive the reflector mount body in the corresponding reflector mount to rotate, so that the lens mounting surface 6112 on the reflector mount body equipped with the carbon dioxide laser reflector rotates to the reflection position.

[0051] S3. The control center uses the motor angle information fed back by the servo motors of the Z-axis reflector mount 61, C-axis reflector mount 21 and B-axis reflector mount 22, as well as the position information of the lens marking structure fed back by the sensors on the three reflector mounts, to determine whether the carbon dioxide laser reflector on the three reflector mounts is in the reflecting position. If it is in the reflecting position, it feeds back the positioning information to the control center. If it has not yet reached the reflecting position, the control center sends a command to the corresponding servo motor to drive the corresponding reflector mount body to rotate until the carbon dioxide laser reflector on it is in the reflecting position.

[0052] S4. Manually insert the carbon dioxide laser focusing lens mount into the focusing lens socket 32 ​​of the laser cutting head 3.

[0053] When green, blue, or ultraviolet laser light paths are required, the operation method is the same as that of carbon dioxide laser light paths. That is, drive the Z-axis reflector mount 61 on the displacement reflector assembly 6 to the working position, and at the same time rotate the lens mounting surface 6112 of the three polyhedral mirror mounts, which are equipped with laser reflectors of the corresponding wavelength bands, to the reflection position. Then, insert the laser focusing lens mount of the corresponding wavelength band into the focusing lens socket 32 ​​of the laser cutting head 3 to complete the optical path construction.

[0054] To ensure the accuracy of the reflective lens category when rotated to the reflection position on the polyhedral mirror mount, this invention employs a dual confirmation mode, combining motor angle confirmation and sensor confirmation, to verify the correct reflective lens category at the reflection position.

[0055] The method for confirming and controlling the mirror type corresponding to the reflection position on the Z-axis mirror mount body 611 is as follows:

[0056] Motor angle confirmation for Z-axis mirror mount body 611: The Z-axis mirror mount body 611 has four mirror mounting surfaces 6112, with an angle difference of 90° between each surface. If the angle of the Z-axis mirror mount servo motor 613 when one of the mirror mounting surfaces 6112 is in the reflection position is defined as 0°, then the servo motor angles when the other three mirror mounting surfaces 6112 are in the reflection position are 90°, 180°, and 270° respectively. The motor angles and reflector types are set according to Table 1 through the control center.

[0057] Table 1. Examples of Motor Angles and Mirror Types for Z-Axis Reflector Mounts

[0058] 1 0° Carbon dioxide laser reflector 10.6μm 2 90° Green laser reflector 532nm 3 180° Blue laser reflector 450nm 4 270° Ultraviolet laser reflector 355nm

[0059] When the carbon dioxide laser reflector needs to be rotated to the reflection position, the control center sends a command to the Z-axis mirror mount servo motor 613. The Z-axis mirror mount servo motor 613 drives the Z-axis mirror mount body 611 to rotate to the 0° position. After rotating to the position, the Z-axis mirror mount servo motor 613 sends a 0° positioning signal back to the control center, thus completing the motor angle confirmation.

[0060] Sensor position confirmation of Z-axis mirror mount body 611: Three Z-axis mirror mount sensors 615 are provided on the Z-axis mirror mount housing 612. The Z-axis mirror mount sensors 615 are non-contact inductive sensors. The three Z-axis mirror mount sensors 615 are arranged in a row at equal intervals and face the side end face of the lens mounting surface 6112 at the reflection position. Each of the four lens mounting surfaces 6112 has a combination structure of bosses 616 and grooves 617 corresponding to the Z-axis mirror mount sensors 615. When any lens mounting surface 6112 is rotated to the reflection position, the Z-axis mirror mount sensor 615 can be activated by the specific grooves 617 and bosses 616 on the side of the lens mounting surface 6112. The combined structure identifies different lens types. The Z-axis lens mount sensor 615 facing the protrusion 616 is less than the sensing distance from the top of the protrusion 616, generating an inductive signal and feeding back signal 1 to the control center. The Z-axis lens mount sensor 615 facing the groove 617 is facing an empty space, and there is no corresponding metal material within the sensing distance, so it cannot generate an inductive signal and feeds back signal 0 to the control center. Thus, the three Z-axis lens mount sensors 615 can identify four different lens mounting surfaces 6112 through the combination structure provided in Table 3. This example combination structure is not unique; as long as four different lenses can be identified, this function can be achieved.

[0061] Table 2 Figure 8 Example table of the arrangement of bosses and grooves when the Z-axis mirror mount body rotates counterclockwise.

[0062]

[0063]

[0064] Z-axis mirror mount body 611 double confirmation: When the control center receives angle confirmation information from Z-axis mirror mount servo motor 613 and signal confirmation information from Z-axis mirror mount sensor 615, it compares the two confirmation information. If the two confirmation information indicate the same type of mirror, it can be confirmed that the mirror in the reflection position is correct. For example, if the motor angle fed back by Z-axis mirror mount servo motor 613 is 0°, it corresponds to a carbon dioxide laser reflector. At the same time, the signal fed back by Z-axis mirror mount sensor 615 is 101, which also corresponds to a carbon dioxide laser reflector. Then it is confirmed that the mirror in the reflection position of Z-axis mirror mount body 611 is a carbon dioxide laser reflector.

[0065] The method for confirming and controlling the mirror type corresponding to the reflection position on the C-axis mirror mount 21 is as follows:

[0066] Confirmation of the motor angle of the polyhedral mirror mount body 23 on the C-axis mirror mount 21: The polyhedral mirror mount body 23 in the C-axis mirror mount 21 has five mirror mounting surfaces 6112, and the angle difference between each surface is 72°. If the servo motor angle when one of the mirror mounting surfaces 6112 is in the reflection position is defined as 0°, then the angles of the polyhedral mirror mount servo motors 25 when the other four mirror mounting surfaces 6112 are in the reflection position are 72°, 144°, 216° and 288° respectively. The angles of the polyhedral mirror mount servo motors 25 and the mirror types are set by the control center as shown in Table 3.

[0067] Table 3. Examples of motor angles and mirror types for servo motors on C-axis reflector mounts with polyhedral reflector mounts.

[0068] 1 0° Carbon dioxide laser reflector 10.6μm 2 72° Fiber laser reflector 1.06μm 3 144° Green laser reflector 532nm 4 216° Blue laser reflector 450nm 5 288° Ultraviolet laser reflector 355nm

[0069] When the fiber laser reflector needs to be rotated to the reflection position, the control center sends a command to the polyhedral reflector mount servo motor 25. The polyhedral reflector mount servo motor 25 drives the polyhedral reflector mount body 23 to rotate to the 72° position. After rotating to the position, the polyhedral reflector mount servo motor 25 sends a 72° positioning signal back to the control center, thus completing the motor angle confirmation.

[0070] Sensors on the C-axis reflector mount 21 confirm that three polyhedral reflector mount sensors 615 are installed on the polyhedral reflector mount housing 24. All are non-contact inductive sensors. The three sensors 615 are arranged in a row at equal intervals, facing the side end face of the reflective lens mounting surface 6112. Each of the five lens mounting surfaces 6112 has a combination of protrusions 616 and grooves 617 corresponding to the polyhedral reflector mount sensors 615, serving as a lens identification structure. When any lens mounting surface 6112 is rotated to the reflective position, the polyhedral reflector mount sensor 615 can detect the specific lens identification structure on the side of that lens mounting surface 6112. The structure identifies different lens types. The distance between the polyhedral mirror mount sensor 615 facing the protrusion 616 and the top of the protrusion 616 is less than the sensing distance, so it can generate an inductive signal and feed back signal 1 to the control center. The polyhedral mirror mount sensor 615 facing the groove 617 is facing an empty space, and there is no corresponding metal material within the sensing distance, so it cannot generate an inductive signal and feeds back signal 0 to the control center. Thus, the three polyhedral mirror mount sensors 615 can identify five different lens mounting surfaces 6112 through the combination structure provided in Table 4. This example combination is not unique; as long as five different lenses can be identified, this function can be achieved.

[0071] Table 4 Figure 9 Example table of the arrangement of bosses and grooves when the polyhedral mirror mount body is rotated counterclockwise.

[0072] 1 Concave and convex 001 Carbon dioxide laser reflector 10.6μm 2 convex convex 111 Fiber laser reflector 1.06μm 3 Concave and convex 011 Green laser reflector 532nm 4 Convex and concave 101 Blue laser reflector 450nm 5 Convex and concave 100 Ultraviolet laser reflector 355nm

[0073] C-axis reflector mount 21 double confirmation: When the control center receives the angle confirmation information from the polyhedral reflector mount servo motor 25 in the C-axis reflector mount 21 and the signal confirmation information from the polyhedral reflector mount sensor 26 in the C-axis reflector mount 21, it compares the two confirmation information. If the two confirmation information points to the same reflector type, it can be confirmed that the reflector type in the reflection position is correct. For example, if the motor angle fed back by the polyhedral reflector mount servo motor 25 in the C-axis reflector mount 21 is 72°, which corresponds to a fiber laser reflector, and the signal fed back by the polyhedral reflector mount sensor 26 in the C-axis reflector mount 21 is 111, which also corresponds to a fiber laser reflector, then it is confirmed that the reflector in the reflection position of the polyhedral reflector mount body 23 in the C-axis reflector mount 21 is a fiber laser reflector.

[0074] Because a focusing lens identification module is arranged in the focusing lens socket 32, the focusing lens identification module is used to identify the carbon dioxide laser focusing lens mount equipped with a carbon dioxide laser focusing lens, the fiber laser focusing lens mount equipped with a fiber laser focusing lens, the green laser focusing lens mount equipped with a green laser focusing lens, the blue laser focusing lens mount equipped with a blue laser focusing lens, and the ultraviolet laser focusing lens mount equipped with an ultraviolet laser focusing lens.

[0075] For example, the focusing lens recognition module includes three contact sensors. The contacts of the three contact sensors are all arranged on the inner wall of the focusing lens mount socket 32, and the sensing plates corresponding to the contacts are arranged at the front end of the focusing lens mount 31. The number of sensing plates on each focusing lens mount 31 is 1-3. The number and / or position of the sensing plates arranged on different focusing lens mounts 31 are different. Therefore, different combinations of sensing plates and contacts will generate different signal feedbacks after contact, thereby identifying different focusing lens mounts 31. After the focusing lens mount 31 is inserted into the focusing lens mount socket 32, if there is a sensing plate at the position corresponding to any contact on the focusing lens mount 31, the sensing plate will contact the contact, and the output signal 1 will be fed back to the control center. If there is no sensing plate at the position corresponding to any contact on the focusing lens mount 31, the output signal 0 will be fed back to the control center. The contacts and sensing plates of the three contact sensors can be arranged as shown in Table 5 to identify five different focusing lens mounts 32. This example combination is not unique, as long as it can identify five different focusing lens mounts 32.

[0076] Table 5. Correspondence diagram of contacts and sensors in the focusing lens identification module of the five types of focusing lens mounts.

[0077]

[0078]

[0079] As shown in Table 5, the front end of the carbon dioxide laser focusing lens mount has a sensor plate at each of the first, second, and third positions. When the three sensor plates contact the three contact points, the focusing lens identification module outputs signal 111 to the control center, confirming that the carbon dioxide laser focusing lens mount equipped with the carbon dioxide laser focusing lens has been inserted into the focusing lens socket 32. Similarly, the front end of the fiber laser focusing lens mount has a sensor plate at each of the first and second positions. When the two sensor plates at the first and second positions contact the corresponding contact points, the focusing lens identification module outputs signal 110 to the control center, confirming that the fiber laser focusing lens mount equipped with the fiber laser focusing lens has been inserted into the focusing lens socket 32. The front end of the green laser focusing lens mount also has a sensor plate at each of the first and third positions. When the two sensor plates at the first and third positions contact the corresponding contact points, the focusing lens identification module outputs signal 110 to the control center, confirming that the fiber laser focusing lens mount equipped with the fiber laser focusing lens has been inserted into the focusing lens socket 32. When the sensor plate touches the corresponding contact point, the focusing lens identification module outputs signal 101 to the control center, confirming that the green laser focusing lens mount equipped with the green laser focusing lens has been inserted into the focusing lens socket 32. For the blue laser focusing lens mount, only the first position at the front end has a sensor plate. When only the sensor plate at the first position touches the corresponding contact point, the focusing lens identification module outputs signal 100 to the control center, confirming that the blue laser focusing lens mount equipped with the blue laser focusing lens has been inserted into the focusing lens socket 32. For the ultraviolet laser focusing lens mount, only the second position at the front end has a sensor plate. When only the sensor plate at the second position touches the corresponding contact point, the focusing lens identification module outputs signal 010 to the control center, confirming that the ultraviolet laser focusing lens mount equipped with the ultraviolet laser focusing lens has been inserted into the focusing lens socket 32.

[0080] The multi-band Z-axis assembly provided by this utility model achieves the transmission and output of lasers of different wavelengths in the same laser cutting equipment by setting optical elements and conversion devices suitable for different wavelengths in the optical path system. This makes it suitable for laser processing of materials of different wavelengths, meets the technical requirements of production lines for flexible processing of multiple materials, and reduces equipment purchase costs, factory space occupation costs and equipment maintenance costs for customers. It has a strong market competitiveness.

[0081] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0082] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0083] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.

Claims

1. A multi-band Z-axis assembly for a three-dimensional laser processing equipment, comprising a fiber laser output connector (1), a rotary axis assembly (2), a laser cutting head (3), and a Z-axis assembly housing (5) with a built-in light guide tube (4), characterized in that: A displacement mirror assembly (6) is arranged between the fiber laser output connector (1) and the entrance side of the light guide tube (4). The Z-axis mirror mount (61) on the displacement mirror assembly (6) can move relative to the light guide tube (6) to select whether to use fiber laser or other lasers. The Z-axis mirror mount body (611) with multiple optical mirrors in the Z-axis mirror mount (61) can rotate to receive and reflect other lasers. The C-axis mirror mount (21) and B-axis mirror in the rotating axis assembly (2) Each of the bases (22) is equipped with a multi-faceted mirror base body (23) that can rotate to receive and reflect lasers of different wavelengths. The multi-faceted mirror base body (23) is equipped with the same optical mirror as the Z-axis mirror base body (611) and an additional fiber laser mirror. The laser cutting head (3) is equipped with a focusing mirror socket (3) that can be inserted into the focusing mirror base (31). The optical focusing mirror on the focusing mirror base (31) can be adapted to the optical mirror on the multi-faceted mirror base body (23).

2. The multi-band Z-axis assembly for three-dimensional laser processing equipment according to claim 1, characterized in that: The Z-axis mirror mount body (611) is a hexahedral mirror mount capable of mounting four optical mirrors, the polyhedral mirror mount body (23) is a heptahedral mirror mount capable of mounting five optical mirrors, the laser cutting head (3) is equipped with five types of focusing mirror mounts (31), and the Z-axis assembly housing (5) is provided with a focusing mirror mount storage box (51) capable of accommodating all the focusing mirror mounts (31).

3. The multi-band Z-axis assembly for three-dimensional laser processing equipment according to claim 1, characterized in that: The Z-axis mirror mount body (611) is equipped with a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector and an ultraviolet laser reflector. The polyhedral mirror mount body (23) is equipped with a carbon dioxide laser reflector, a fiber laser reflector, a green laser reflector, a blue laser reflector and an ultraviolet laser reflector. The focusing lens socket (32) on the laser cutting head (3) can be inserted into a carbon dioxide laser focusing lens mount, a fiber laser focusing lens mount, a green laser focusing lens mount, a blue laser focusing lens mount or an ultraviolet laser focusing lens mount, respectively.

4. The multi-band Z-axis assembly for a three-dimensional laser processing equipment according to any one of claims 1-3, characterized in that: The displacement mirror assembly (6) includes a displacement assembly base plate (64), a displacement guide rail (62), a drive mechanism (63), and a Z-axis mirror mount (61). The displacement guide rail (62) is mounted on the displacement assembly base plate (61), and the Z-axis mirror mount (61) is slidably connected to the displacement guide rail (62). The drive mechanism (63) can drive the Z-axis mirror mount (61) to reciprocate along the displacement guide rail (62). The light outlet at the bottom of the Z-axis mirror mount (61) is connected to the light outlet of the displacement assembly in the middle of the displacement assembly base plate (64). The corresponding port (614) is as follows: When the Z-axis reflector mount (61) moves to the working position, the Z-axis reflector mount (61) is located between the fiber laser output connector (1) and the light guide tube (4) and the light output port of the Z-axis reflector mount (61) is coaxially connected with the light guide tube (4); When the Z-axis reflector mount (61) moves to the waiting position on one side of the light guide tube (4), the light output port of the fiber laser output connector (1) is coaxially suspended directly above the light guide tube (4) and the light guide tube (4) can receive the fiber laser output by the fiber laser output connector (1).

5. The multi-band Z-axis assembly for three-dimensional laser processing equipment according to claim 4, characterized in that: The displacement reflector assembly (6) further includes a limiting block (65), a retractable magnetic induction switch (66), and an extended magnetic induction switch (67). The limiting block (65), located on one side of the displacement assembly base plate (64), is used to limit the working position of the Z-axis reflector mount (61). The retractable magnetic induction switch (66) and the extended magnetic induction switch (67) are used to detect the position of the Z-axis reflector mount (61) and are linked with the drive mechanism (63). When the Z-axis reflector mount (61) moves to the working position, the Z-axis reflector mount (61) abuts against the limiting block (65). At this time, the limit block (65) accurately positions the Z-axis reflector mount (61) into place, and the retractable magnetic induction switch (66) corresponding to the drive mechanism (63) sends a signal that the Z-axis reflector mount (61) is in place. The control center can then confirm that the Z-axis reflector mount (61) has reached the working position. When the Z-axis reflector mount (61) moves to the waiting position away from the limit block (65), the extended magnetic induction switch (67) corresponding to the drive mechanism (63) sends a signal that the Z-axis reflector mount (61) is in place. The control center can then confirm that the Z-axis reflector mount (61) is in the waiting position.

6. The multi-band Z-axis assembly for three-dimensional laser processing equipment according to claim 4, characterized in that: The Z-axis mirror mount (61) includes a Z-axis mirror mount body (611), a Z-axis mirror mount housing (612), a Z-axis mirror mount servo motor (613), and a Z-axis mirror mount sensor (615). The Z-axis mirror mount body (611), which houses multiple optical mirrors, is contained within the Z-axis mirror mount housing (612). The motor output of the Z-axis mirror mount servo motor (613), which is mounted on the Z-axis mirror mount housing (612), is fixedly connected to the Z-axis mirror mount body (611). The Z-axis mirror mount servo motor (613) drives the Z-axis mirror mount body (611)... 1) Rotate the required optical mirror to the reflection position by rotating the motor output end as the axis. A Z-axis mirror mount sensor (615) is provided on the Z-axis mirror mount housing (612) opposite to the Z-axis mirror mount servo motor (613) to identify the type of optical mirror in the reflection position. A lens marking structure corresponding to the type of optical mirror is arranged on the end face of the Z-axis mirror mount body (611) away from the Z-axis mirror mount servo motor (613). The Z-axis mirror mount sensor (615) determines the type of optical mirror by sensing the lens marking structure.

7. The multi-band Z-axis assembly for three-dimensional laser processing equipment according to claim 6, characterized in that: Both ends of the Z-axis mirror mount body (611) serve as motor connection surfaces (6111), and the circumference is divided into N lens mounting surfaces (6112). The motor output end of the Z-axis mirror mount servo motor (613) passes through the Z-axis mirror mount housing (612) and through the geometric center of the two motor connection surfaces (6111), and is fixedly connected to the Z-axis mirror mount body (611). Laser reflectors (6113) capable of receiving and reflecting lasers of different wavelengths are respectively installed on the lens mounting surfaces (6112). The Z-axis mirror mount body (611) and the Z-axis mirror mount housing (612) are connected by bearings. Lens marking structures corresponding to the types of optical reflectors are arranged on the side wall of the lens mounting surfaces (6112).

8. The multi-band Z-axis assembly for a three-dimensional laser processing equipment according to any one of claims 1-3, characterized in that: The C-axis reflector mount (21) is mounted on a C-axis that can rotate in a horizontal plane, and the B-axis reflector mount (22) is mounted on a B-axis that can swing in a vertical plane. Both the C-axis reflector mount (21) and the B-axis reflector mount (22) are replaceable reflector mounts and both include a polyhedral reflector mount body (23), a polyhedral reflector mount housing (24), a polyhedral reflector mount servo motor (25), and a polyhedral reflector mount sensor (26). The polyhedral reflector mount body (23), which contains multiple optical reflectors, is housed within the polyhedral reflectors. In the housing (24), the motor output end of the polyhedral mirror mount servo motor (25) mounted on the polyhedral mirror mount housing (24) is fixedly connected to the polyhedral mirror mount body (23). The polyhedral mirror mount servo motor (25) drives the polyhedral mirror mount body (23) to rotate around the motor output end as the axis, rotating the required optical mirror to the reflection position. A polyhedral mirror mount sensor (26) for identifying the type of optical mirror in the reflection position is provided on the polyhedral mirror mount housing (24) on the opposite side of the polyhedral mirror mount body (23). A lens marking structure corresponding to the type of optical mirror is arranged on the end face of the polyhedral mirror mount body (23) away from the polyhedral mirror mount servo motor (25). The polyhedral mirror mount sensor (26) determines the type of optical mirror by sensing the lens marking structure.

9. The multi-band Z-axis assembly for a three-dimensional laser processing equipment according to claim 8, characterized in that: Both ends of the polyhedral mirror mount body (23) serve as motor connection surfaces (6111), and the circumference is divided into N+1 lens mounting surfaces (6112). The motor output end of the polyhedral mirror mount servo motor (25) passes through the polyhedral mirror mount shell (24) and through the geometric center of the two motor connection surfaces (6111), and is fixedly connected to the polyhedral mirror mount body (23). Laser reflectors (6113) capable of receiving and reflecting lasers of different wavelengths are respectively installed on the lens mounting surfaces (6112). Lens marking structures corresponding to the types of optical reflectors are arranged on the side wall of the lens mounting surfaces (6112).

10. The multi-band Z-axis assembly for a three-dimensional laser processing equipment according to any one of claims 1-3, characterized in that: The focusing lens socket (3) is equipped with a focusing lens identification module, which is used to identify the type of optical focusing lens on the focusing lens mount (31). The focusing lens identification module includes multiple contact sensors arranged on the inner wall of the focusing lens socket (3) and a lens marking structure arranged at the front end of the focusing lens mount (31). The lens marking structure of different optical focusing lenses is unique, so that the focusing lens identification module can identify the type of optical focusing lens inserted into the focusing lens mount (31) in the focusing lens socket (3).

Images