A dual band Z-axis assembly for a three-dimensional laser processing apparatus

Abstract

The utility model discloses a double wave band Z axle subassembly for three -dimensional laser processing equipment, this double wave band Z axle subassembly includes optical fiber laser output joint, rotating shaft subassembly, laser cutting head, Z axle subassembly shell, light guide cylinder, is arranged between optical fiber laser output joint and the entrance side of light guide cylinder and has displacement type mirror subassembly with displacement type mirror subassembly on the mirror seat can move relative to light guide cylinder, rotating shaft subassembly includes C axle mirror seat and B axle mirror seat, is provided with the work position slot of mirror seat body's adjacent respectively on C axle mirror seat and B axle mirror seat, and the tray of carbon dioxide laser mirror piece or optical fiber laser mirror piece is inserted to work position slot for inserting assembly, be equipped with the focusing mirror socket for accommodating focusing mirror seat in laser cutting head, and focusing mirror socket is used for inserting carbon dioxide laser focusing mirror seat or optical fiber laser focusing mirror seat, the utility model discloses the subassembly switches carbon dioxide laser light path and optical fiber laser light path.

Description

Technical Field

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

[0002] Existing 3D laser processing equipment typically employs a single-band optical path system design, meaning that a single device can only output laser light of a fixed wavelength. This design has the following drawbacks:

[0003] 1. Material adaptability limitations: Different materials have significantly different absorption characteristics for laser wavelengths. For example, metals have high absorption rates for near-infrared wavelengths, while polymer materials are more suitable for mid-infrared wavelengths. Single-wavelength equipment cannot achieve optimal processing of multiple materials.

[0004] 2. Industry demand contradiction: With the popularization of new material applications and small-batch customized production, production lines have an increasing demand for the flexibility of multi-material processing, while single-band equipment is difficult to meet the industry demand.

[0005] 3. Cost-effectiveness issues: In order to meet the needs of multi-material processing, enterprises have to purchase multiple pieces of equipment with different wavelengths, such as equipping themselves with carbon dioxide laser processing equipment and fiber laser processing equipment at the same time. However, this approach will lead to a significant increase in equipment purchase costs, factory space occupation costs, and equipment maintenance costs, which is not conducive to the enterprise's cost reduction and efficiency improvement.

[0006] 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. Utility Model Content

[0007] The purpose of this invention is to address the problems existing in the prior art by providing a dual-band Z-axis assembly for three-dimensional laser processing equipment. This dual-band Z-axis assembly can be used in the design of dual-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 dual-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, with the mirror mount on the displacement mirror assembly movable relative to the light guide tube; the rotary axis assembly includes a C-axis mirror mount and a B-axis mirror mount, each with a working slot adjacent to the mirror mount body, for inserting a tray equipped with a carbon dioxide laser reflector or a fiber laser reflector; and the laser cutting head having a focusing lens socket for accommodating a focusing lens mount, for inserting a carbon dioxide laser focusing lens mount or a fiber laser focusing lens mount.

[0010] When using a carbon dioxide laser optical path, align the light outlet of the reflector mount coaxially with the light guide tube. Insert the tray equipped with the carbon dioxide laser reflector into the working slot of the C-axis reflector mount, insert the tray equipped with the carbon dioxide laser reflector into the working slot of the B-axis reflector mount, and insert the carbon dioxide laser focusing lens mount into the focusing lens socket of the laser cutting head. When using a fiber laser optical path, remove the reflector mount, allowing the light outlet of the fiber laser output connector to be directly and coaxially suspended above the light guide tube. Insert the tray equipped with the fiber laser reflector into the working slot of the C-axis reflector mount, insert the tray equipped with the fiber laser reflector into the working slot of the B-axis reflector mount, and insert the fiber laser focusing lens mount into the focusing lens socket of the laser cutting head.

[0011] The C-axis and B-axis reflector mounts are equipped with a reflector identification module, which is used to identify the first lens tray equipped with a carbon dioxide laser reflector and the second lens tray equipped with a fiber laser reflector.

[0012] The reflector recognition module is positioned on the mirror mount body and directly opposite the bottom of the work slot, so that the contacts on the reflector recognition module can contact the sensor sheet on the front side of the tray.

[0013] The front end of the first lens tray is equipped with a dual-contact sensor. When the dual-contact sensor comes into contact with the contact-equipped reflector recognition module, the reflector recognition module will output a dual-channel signal to the control center, confirming that the first lens tray equipped with the carbon dioxide laser reflector has been inserted into the working position slot. The front end of the second lens tray is equipped with a single-contact sensor. When the single-contact sensor comes into contact with the contact-equipped reflector recognition module, the reflector recognition module will output a single-channel signal to the control center, confirming that the second lens tray equipped with the fiber laser reflector has been inserted into the working position slot.

[0014] The focusing lens socket is equipped with a focusing lens identification module, which is used to identify a carbon dioxide laser focusing lens mount equipped with a carbon dioxide laser focusing lens or a fiber laser focusing lens mount equipped with a fiber laser focusing lens.

[0015] The front end of the carbon dioxide laser focusing lens mount is equipped with a dual-contact sensor. When the dual-contact sensor comes into contact with the focusing lens identification module with contacts, the focusing lens identification module will output a dual-channel signal 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. The front end of the fiber laser focusing lens mount is equipped with a single-contact sensor. When the single-contact sensor comes into contact with the focusing lens identification module with contacts, the focusing lens identification module will output a single-channel signal 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.

[0016] The aforementioned displacement mirror assembly includes a mirror mount with a reflective lens suitable for reflecting carbon dioxide lasers, a displacement guide rail, and a drive mechanism. The displacement guide rail is mounted on the base plate of the displacement mirror assembly, and the mirror mount is slidably connected to the displacement guide rail. The drive mechanism can drive the mirror mount to reciprocate along the displacement guide rail. When the 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 mirror mount is coaxially aligned with the light guide tube. When the 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.

[0017] The displacement reflector assembly also includes a limit block, a retractable magnetic induction switch, and an extendable magnetic induction switch. The limit block, located on one side of the base plate of the displacement reflector assembly, is used to limit the working position of the reflector mount. The retractable and extendable magnetic induction switches are used to detect the position of the reflector mount and are linked to the drive mechanism. When the reflector mount moves to the working position, it abuts against the limit block, at which point the limit block accurately positions the reflector mount in place. The corresponding retractable magnetic induction switch of the drive mechanism sends a reflector mount arrival signal, and the control center can confirm that the reflector mount has reached the working position. When the reflector mount moves to a waiting position away from the limit block, the corresponding extendable magnetic induction switch of the drive mechanism sends a reflector mount arrival signal, and the control center can confirm that the reflector mount is in the waiting position.

[0018] The C-axis reflector mount is mounted on a C-axis that can rotate in a horizontal plane, and the B-axis reflector mount is mounted on a B-axis that can swing in a vertical plane. Both the C-axis and B-axis reflector mounts are replaceable reflector mounts and both include a mount body and a lens support. The working position slot is set on the lens support.

[0019] The lens holder is provided with a working position slot and a waiting position slot arranged in parallel. The working position slot is located near the lens holder body, and the waiting position slot is located away from the lens holder body. A tray equipped with a carbon dioxide laser reflector or a fiber laser reflector can be inserted into the waiting position slot.

[0020] The working slot and the waiting slot are each independently equipped with a reflector recognition module. The reflector recognition module is used to identify whether the tray inserted into the working slot is a first lens tray equipped with a carbon dioxide laser reflector or a second lens tray equipped with a fiber laser reflector.

[0021] This invention provides a dual-band Z-axis assembly for a three-dimensional laser processing equipment, which enables switching between different wavelength laser optical paths within the same laser processing equipment, i.e., switching between a carbon dioxide laser optical path and a fiber laser optical path. When the laser processing equipment needs to use the carbon dioxide laser optical 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. Similarly, when the fiber laser optical path needs to be used, 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 mirror mount and the B-axis mirror mount in the rotary axis assembly, and the focusing lens mount in the laser cutting head.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The dual-band Z-axis assembly provided by this utility model, by setting optical elements and conversion devices suitable for different wavelengths in the optical path system, realizes the transmission and output of lasers of different wavelengths in the same laser cutting equipment, making it suitable for laser processing of materials of different wavelengths, meeting the technical requirements of production lines for flexible processing of multiple materials, reducing equipment purchase costs, factory space occupation costs and equipment maintenance costs for customers, and has a strong market competitiveness. Attached Figure Description

[0024] Appendix Figure 1 A schematic diagram of the structure of a dual-band Z-axis assembly for a three-dimensional laser processing equipment provided by this utility model;

[0025] Appendix Figure 2 A cross-sectional structural schematic diagram of a dual-band Z-axis assembly for a three-dimensional laser processing equipment provided by this utility model;

[0026] Appendix Figure 3 This is a schematic diagram of the structure of the displacement reflector assembly provided by this utility model;

[0027] Appendix Figure 4 A schematic diagram of the C-axis reflector mount state when the second lens tray provided by this utility model is inserted into the working position slot;

[0028] Appendix Figure 5 A schematic diagram of the C-axis reflector mount state when the second lens tray provided by this utility model is pulled out of the working position slot;

[0029] Appendix Figure 6 A schematic diagram of the structure of the C-axis reflector mount body provided by this utility model;

[0030] Appendix Figure 7 This is a schematic diagram of the structure of the laser cutting head with a focusing lens socket provided by this utility model.

[0031] Wherein: 1—Fiber laser output connector; 2—Displacement mirror assembly; 21—Mirror mount; 22—Displacement guide rail; 23—Drive mechanism; 231—Retractable magnetic induction switch; 232—Extended magnetic induction switch; 24—Limit block; 3—Rotation axis assembly; 31—C-axis mirror mount; 311—Mirror mount body; 3111—Mirror identification module; 312—Lens bracket; 313—First lens tray; 3131—Dual-contact sensor plate; 314—Second lens tray; 3141—Single-contact sensor plate; 315—Working position slot; 316—Waiting position slot; 317—Carbon dioxide laser reflector; 318—Fiber laser reflector; 32—B-axis mirror mount; 4—Laser cutting head; 41—Focusing lens mount; 42—Focusing lens socket; 5—Z-axis assembly housing; 6—Light guide tube. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] like Figure 1-6As shown: A dual-band Z-axis assembly for a three-dimensional laser processing equipment. The dual-band Z-axis assembly includes a fiber laser output connector 1, a rotary axis assembly 3, a laser cutting head 4, and a Z-axis assembly housing 5 with a built-in light guide tube 6. A displacement mirror assembly 2 is arranged between the fiber laser output connector 1 and the inlet side of the light guide tube 6, and the mirror mount 21 on the displacement mirror assembly 2 can move relative to the light guide tube 6. The rotary axis assembly 3 includes a C-axis mirror mount 31 and a B-axis mirror mount 32. The C-axis mirror mount 31 and the B-axis mirror mount 32 are respectively provided with working position slots 315 adjacent to the mirror mount body 311. The working position slots 315 are used to insert a tray equipped with a carbon dioxide laser reflector 317 or a fiber laser reflector 318. The laser cutting head 4 is provided with a focusing lens socket 42 for accommodating a focusing lens mount 41. The focusing lens socket 42 is used to insert a carbon dioxide laser focusing lens mount or a fiber laser focusing lens mount. When a carbon dioxide laser optical path is required, the light outlet of the reflector mount 21 is coaxially aligned with the light guide tube 6. A tray equipped with a carbon dioxide laser reflector lens 317 is inserted into the working slot 315 of the C-axis reflector mount 31, and the same tray is inserted into the working slot 315 of the B-axis reflector mount 32. A carbon dioxide laser focusing lens mount is then inserted into the focusing lens socket 42 of the laser cutting head 4. The optical lenses on the reflector mount 21 can receive the carbon dioxide laser light coming from outside the Z-axis assembly housing 5 and reflect it back to its source. The carbon dioxide laser is reflected into the light guide tube 6, and the carbon dioxide laser travels along the axis of the light guide tube 6. When the fiber laser path is required, the reflector mount 21 is removed, and the output port of the fiber laser output connector 1 is directly and coaxially suspended above the light guide tube 6. The tray equipped with the fiber laser reflector 318 is inserted into the working position slot 315 of the C-axis reflector mount 31, the tray equipped with the fiber laser reflector 318 is inserted into the working position slot 315 of the B-axis reflector mount 32, and the fiber laser focusing lens mount is inserted into the focusing lens socket of the laser cutting head 4.

[0035] In the above structure, such as Figure 3As shown, the displacement mirror assembly 2 includes a mirror mount 21 with a reflective lens suitable for reflecting carbon dioxide laser, a displacement guide rail 22, and a drive mechanism 23. The displacement guide rail 22 is mounted on the base plate of the displacement mirror assembly 2, and the mirror mount 21 is slidably connected to the displacement guide rail 22. The drive mechanism 23 can drive the mirror mount 21 to reciprocate along the displacement guide rail 22. When the mirror mount 21 moves to the working position, the mirror mount 21 is located between the fiber laser output connector 1 and the light guide tube 6, and the light outlet of the mirror mount 21 is coaxially connected to the light guide tube 6. When the mirror mount 21 moves to the waiting position on one side of the light guide tube 6, the light outlet of the fiber laser output connector 1 is coaxially suspended directly above the light guide tube 6, and the light guide tube 6 can receive the fiber laser output from the fiber laser output connector 1. The displacement reflector assembly 2 also includes a limit block 24, a retractable magnetic induction switch 231, and an extended magnetic induction switch 232. The limit block 24, located on one side of the base plate of the displacement reflector assembly 2, is used to limit the working position of the reflector seat 21. The retractable magnetic induction switch 231 and the extended magnetic induction switch 232 are used to detect the position of the reflector seat 21 and are linked with the drive mechanism 23. When the reflector seat 21 moves to the working position, the reflector seat 21 abuts against the limit block 24. At this time, the limit block 24 accurately positions the reflector seat 21 into place. The retractable magnetic induction switch 231 corresponding to the drive mechanism 23 sends a signal indicating that the reflector seat 21 has reached the working position, and the control center can confirm that the reflector seat 21 has reached the working position. When the reflector seat 21 moves to a waiting position away from the limit block 24, the extended magnetic induction switch 232 corresponding to the drive mechanism 23 sends a signal indicating that the reflector seat 21 has reached the waiting position, and the control center can confirm that the reflector seat 21 is in the waiting position.

[0036] In the above structure, the C-axis reflector mount 31 is mounted on the C-axis, which can rotate in the horizontal plane, and the B-axis reflector mount 32 is mounted on the B-axis, which can swing in the vertical plane. Both the C-axis reflector mount 31 and the B-axis reflector mount 32 are replaceable reflector mounts, and both include a mount body 311 and a lens holder 312. The working position slot 315 is disposed on the lens holder 312. It should be noted that a reflector identification module 3111 is respectively provided on the C-axis reflector mount 31 and the B-axis reflector mount 32. The reflector identification module 3111 is used to identify the first lens tray 313 equipped with a carbon dioxide laser reflector 317 and the second lens tray 314 equipped with a fiber laser reflector 318. For easy differentiation, a dual-contact sensor 3131 is arranged at the front end of the first lens tray 313. When the dual-contact sensor 3131 contacts the reflector recognition module 3111 with contacts, the reflector recognition module 3111 will output a dual-channel signal to the control center. The control center confirms that the first lens tray 313 equipped with the carbon dioxide laser reflector 317 has been inserted into the working position slot 315. A single-contact sensor 3141 is arranged at the front end of the second lens tray 314. When the single-contact sensor 3141 contacts the reflector recognition module 3111 with contacts, the reflector recognition module 3111 will output a single-channel signal to the control center. The control center confirms that the second lens tray 314 equipped with the fiber laser reflector 318 has been inserted into the working position slot 315.

[0037] In the above structure, a focusing lens identification module is arranged inside the focusing lens socket. This module is used to identify carbon dioxide laser focusing lens mounts equipped with carbon dioxide laser focusing lenses and fiber laser focusing lens mounts equipped with fiber laser focusing lenses. For easy differentiation, a dual-contact sensor 3131 is arranged at the front end of the carbon dioxide laser focusing lens mount. When the dual-contact sensor 3131 contacts the focusing lens identification module, the focusing lens identification module outputs a dual-channel signal to the control center, confirming that the carbon dioxide laser focusing lens mount equipped with carbon dioxide laser focusing lenses has been inserted into the focusing lens socket 42. Similarly, a single-contact sensor 3141 is arranged at the front end of the fiber laser focusing lens mount. When the single-contact sensor 3141 contacts the focusing lens identification module, the focusing lens identification module outputs a single-channel signal to the control center, confirming that the fiber laser focusing lens mount equipped with fiber laser focusing lenses has been inserted into the focusing lens socket 42.

[0038] When using the dual-band Z-axis assembly for a three-dimensional laser processing equipment provided by this utility model, only the first lens tray 313 equipped with a carbon dioxide laser reflector 317 or the second lens tray 314 equipped with a fiber laser reflector 318 needs to be installed. Therefore, when using one tray, a separate device is required to store the other tray. To facilitate storage, a waiting position slot 316 is also provided on the lens bracket 312, and the waiting position slot 316 is arranged parallel to the working position slot 315. The working position slot 315 is located near the lens mount body 311, and the waiting position slot 316 is located away from the lens mount body 311. The tray equipped with a carbon dioxide laser reflector 317 or a fiber laser reflector 318 can be inserted into the waiting position slot 316. Each of the working slot 315 and the waiting slot 316 is independently equipped with a reflector identification module 3111. The reflector identification module 3111 is used to identify whether the tray inserted into the working slot 315 is the first lens tray 313 equipped with a carbon dioxide laser reflector 317 or the second lens tray 314 equipped with a fiber laser reflector 318. The reflector identification module 3111 is used to identify whether the tray inserted into the waiting slot 316 is the first lens tray 313 equipped with a carbon dioxide laser reflector 317 or the second lens tray 314 equipped with a fiber laser reflector 318.

[0039] Example

[0040] like Figure 1-2 As shown: A dual-band Z-axis assembly for a three-dimensional laser processing equipment includes a fiber laser output connector 1, a displacement mirror assembly 2, a rotary axis assembly 3, a laser cutting head 4, a Z-axis assembly housing 5, and a light guide tube 6. The fiber laser output connector 1 is located on the top of the Z-axis assembly housing 5 and is connected to a fiber laser (not shown) via an optical fiber. The laser output from the fiber laser is transmitted to the fiber laser output connector 1 via the optical fiber and then coupled out by the fiber laser output connector 1 into the light guide tube 6 of the Z-axis assembly. The displacement mirror assembly 2 and the light guide tube 6 are housed within the Z-axis assembly housing 5. The rotary axis assembly 3 is located below the Z-axis assembly housing 5, and the light inlet of the rotary axis assembly 3 is coaxially aligned with the light outlet at the lower end of the light guide tube 6.

[0041] like Figure 3As shown, the displacement mirror assembly 2 includes a mirror mount 21 with a reflective lens suitable for reflecting carbon dioxide lasers, a displacement guide rail 22, and a drive mechanism 23. The displacement guide rail 22 is mounted on the base plate of the displacement mirror assembly 2, and the mirror mount 21 is slidably connected to the displacement guide rail 22. The drive mechanism 23 can drive the mirror mount 21 to reciprocate along the displacement guide rail 22. When the mirror mount 21 moves to the working position, the mirror mount 21 is located between the fiber laser output connector 1 and the light guide tube 6, and the light output port of the mirror mount 21 is coaxially aligned with the light guide tube 6. When the mirror mount 21 moves to the waiting position on one side of the light guide tube, the light output port of the fiber laser output connector 1 is coaxially suspended directly above the light guide tube 6. A limit block 24 is provided on one side of the base plate of the displacement reflector assembly 2. When the reflector seat 21 moves to the working position, it comes into contact with the limit block 24. At this time, the limit block 24 accurately positions the reflector seat 21 into place. The retraction magnetic induction switch 231 corresponding to the drive mechanism 23 sends a signal that the reflector seat 21 has reached the working position, and the control center can confirm that the reflector seat 21 has reached the working position. When the reflector seat 21 moves to the waiting position, it moves away from the limit block 24. The extension magnetic induction switch 232 corresponding to the drive mechanism 23 sends a signal that the reflector seat 21 has reached the waiting position, and the control center can confirm that the reflector seat 21 is in the waiting position.

[0042] like Figure 2 , Figure 4-6 As shown, the rotating axis assembly 3 consists of a C-axis and a B-axis. The C-axis is a rotating axis that can rotate in the horizontal plane; the B-axis is a oscillating axis that can oscillate in the vertical plane. A C-axis reflector mount 31 is provided on the C-axis, and a B-axis reflector mount 32 is provided on the B-axis. The C-axis reflector mount 31 and the B-axis reflector mount 32 have the same structure and are both replaceable reflector mounts. The structure of the replaceable reflector mount is explained below using the C-axis reflector mount 31 as an example.

[0043] The C-axis reflector mount 31 consists of a mount body 311, a lens support 312, a first lens tray 313, and a second lens tray 314. The lens support 312 has two parallel slots: a working position slot 315 and a waiting position slot 316. The working position slot 315 is located near the mount body 311, while the waiting position slot 316 is located away from the mount body 311. A lens tray can be inserted into each slot. A carbon dioxide laser reflector 317 is mounted on the first lens tray 313, and a fiber laser reflector 318 is mounted on the second lens tray 314. When the first lens tray 313 is inserted into the working position slot 315, the carbon dioxide laser reflector 317 is in the working position. When the second lens tray 314 is inserted into the waiting position slot 316, the fiber laser reflector 318 is in the waiting position.

[0044] A reflector identification module 3111 with contacts is provided on the end face of the mirror mount 311 or the lens holder 312 corresponding to the working position slot 315. In order to facilitate differentiation, a double-contact sensing piece 3131 is provided on the first lens tray 313 and a single-contact sensing piece 3141 is provided on the second lens tray 314. If the first lens tray 313 is inserted into the working position slot 315, the contacts on the reflector recognition module 3111 abut against the dual-contact sensing piece 3131, activating the sensing circuit and outputting a dual-channel signal to the control center. The control center can then confirm that the first lens tray 313 with the dual-contact sensing piece 3131 has been correctly inserted into the working position slot 315, meaning that the carbon dioxide laser reflector 317 on the first lens tray 313 is in the working position. If the second lens tray 314 is inserted into the working position slot 315, the contacts on the reflector recognition module 3111 abut against the single-contact sensing piece 3141, activating the sensing circuit and outputting a single-channel signal to the control center. The control center can then confirm that the second lens tray 314 with the single-contact sensing piece 3141 has been correctly inserted into the working position slot 315, meaning that the fiber laser reflector 318 on the second lens tray 314 is in the working position.

[0045] In this embodiment, the laser cutting head 4 is provided with a focusing lens socket 42 for accommodating a focusing lens mount 41. The focusing lens socket 42 contains a focusing lens identification module with contacts. Matching the focusing lens socket 42 are a carbon dioxide laser focusing lens mount with a dual-contact sensing plate and a fiber laser focusing lens mount with a single-contact sensing plate. When the carbon dioxide laser focusing lens mount is inserted into the focusing lens socket 42, the focusing lens identification module sends a dual-channel signal to the control center, allowing the control center to confirm that the carbon dioxide laser focusing lens mount with the dual-contact sensing plate has been inserted into the focusing lens socket 42. When the fiber laser focusing lens mount is inserted into the focusing lens socket 42, the focusing lens identification module sends a single-channel signal to the control center, allowing the control center to confirm that the fiber laser focusing lens mount with the single-contact sensing plate has been inserted into the focusing lens socket 42.

[0046] The steps for constructing a carbon dioxide laser optical path using a dual-band Z-axis assembly for a three-dimensional laser processing equipment, as provided by this utility model, are as follows:

[0047] S1. Position confirmation of displacement mirror assembly 2:

[0048] The control center sends a position confirmation signal to the displacement mirror assembly 2. If the displacement mirror assembly 2 is in the working position, it will be in contact with the limit block 24. At this time, the limit block 24 accurately positions the mirror base 21 into place, and the retracted magnetic induction switch 231 sends a signal that the mirror base 21 is in place. The control center can then confirm that the mirror base 21 has reached the working position, and the position confirmation ends.

[0049] The control center sends a position confirmation signal to the displacement mirror assembly 2. If the displacement mirror assembly 2 is in the waiting position, it will not contact the limit block 24. The extended magnetic induction switch 232 sends a signal that the mirror holder 21 is in position. The control center can then confirm that the mirror holder 21 is in the waiting position. The control center sends a drive command to the drive mechanism 23 to drive the mirror holder 21 to the working position along the displacement guide rail 22 and sends a feedback signal to the control center, indicating that the displacement mirror assembly 2 has arrived at the working position and the position confirmation is completed.

[0050] Confirm the position of the lens tray on S2 and C-axis reflector mount 31:

[0051] The control center sends a position confirmation signal to the working position slot 315 on the C-axis reflector mount 31.

[0052] If the first lens tray 313 is in the working position slot 315, the reflector recognition module 3111 with contact points will contact the dual-contact sensing sheet 3131, and will output a dual-channel signal to the control center. The control center can then confirm that the first lens tray 313 with the carbon dioxide laser reflector 317 has been inserted into the working position slot 315, and the position confirmation is complete.

[0053] If the second lens tray 314 is in the working position slot 315, and the contact-equipped reflector recognition module 3111 abuts against the single-contact sensing piece 3141, it will output a single-channel signal to the control center. The control center can then confirm that the second lens tray 314 with the fiber laser reflector 318 has been inserted into the working position slot 315. The control center will output a lens position change prompt, and the operator will manually remove the first lens tray 313 and the second lens tray 314 from their respective slots, and then insert the first lens tray 313 into the working position slot. In slot 315, the second lens tray 314 is inserted into the waiting position slot 316. At this time, the dual-contact sensing piece 3131 on the first lens tray 313 abuts against the contact-equipped reflector identification module 3111 on the lens mount body 311, connecting the sensing circuit and outputting a dual-channel signal to the control center. The control center can then confirm that the first lens tray 313 with the dual-contact sensing piece 3131 has been inserted into the working position slot 315, and the carbon dioxide laser reflector 317 on the first lens tray 313 is in the working position. The position confirmation is then complete.

[0054] Confirm the position of the lens tray on the S3 and B-axis reflector mount 32:

[0055] The method for confirming the position of the lens tray on the B-axis reflector mount 32 is the same as the method for confirming the position of the lens tray on the C-axis reflector mount 31, so it will not be described again.

[0056] S4, Focusing lens confirmation in laser cutting head 4:

[0057] The method for confirming the position of the focusing lens in the laser cutting head 4 is similar to the method for confirming the position of the lens tray on the C-axis reflector mount 31. The laser cutting head 4 has a focusing lens socket 42 for accommodating the focusing lens mount 41. The focusing lens socket 42 contains a focusing lens identification module with contacts. Matching the focusing lens socket 42 are a CO2 laser focusing lens mount with a dual-contact sensor and a fiber laser focusing lens mount with a single-contact sensor. When the CO2 laser focusing lens mount is inserted into the focusing lens socket 42, the focusing lens identification module sends a dual-channel signal to the control center, confirming that the CO2 laser focusing lens mount with the dual-contact sensor has been inserted into the focusing lens socket 42. When the fiber laser focusing lens mount is inserted into the focusing lens socket 42, the focusing lens identification module sends a single-channel signal to the control center, confirming that the fiber laser focusing lens mount with the single-contact sensor has been inserted into the focusing lens socket 42. At this point, the control center outputs a laser focusing lens mount replacement prompt, allowing the fiber laser focusing lens mount to be replaced with the CO2 laser focusing lens mount.

[0058] By following the above steps, the carbon dioxide laser optical path is successfully constructed.

[0059] If it is necessary to construct a fiber laser optical path in a three-dimensional laser processing equipment, simply move the reflector mount 21 of the displacement reflector assembly 2 to the waiting position, and place the C-axis reflector mount 31, the B-axis reflector mount 32, and the fiber laser optical lens in the laser cutting head 4 into the working position. The operation method is similar to that for constructing a carbon dioxide laser optical path, so it will not be described in detail here.

[0060] This invention provides a dual-band Z-axis assembly for a three-dimensional laser processing equipment, which enables switching of optical paths for different wavelength lasers within the same laser processing equipment, specifically switching between a carbon dioxide laser optical path and a fiber laser optical path. When the laser processing equipment requires the use of a carbon dioxide laser optical path, the mirror mount 21 of the displacement mirror assembly 2 is placed in the working position, the first lens tray 313 with the carbon dioxide laser reflecting lens 317 is placed in the working position slot 315 on the C-axis mirror mount 31, the first lens tray 313 with the carbon dioxide laser reflecting lens 317 is placed in the working position slot 315 on the B-axis mirror mount 32, and the carbon dioxide laser with the carbon dioxide laser focusing lens is placed in the working position slot 315. The carbon laser focusing lens mount is inserted into the focusing lens socket 42; similarly, when the fiber laser optical path is required, the mirror mount 21 of the displacement mirror assembly 2 is removed, the second lens tray 314 with the fiber laser reflecting lens 318 is placed in the working position slot 315 on the C-axis mirror mount 31, the second lens tray 314 with the fiber laser reflecting lens 318 is placed in the working position slot 315 on the B-axis mirror mount 32, and the fiber laser focusing lens mount with the fiber laser focusing lens is inserted into the focusing lens socket 42; there are four optical lenses in the Z-axis assembly, namely the displacement mirror assembly 2, the C-axis mirror mount 31, the B-axis mirror mount 32, and the focusing lens mount in the laser cutting head 4.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 dual-band Z-axis assembly for a three-dimensional laser processing equipment, the dual-band Z-axis assembly comprising a fiber laser output connector (1), a rotary axis assembly (3), a laser cutting head (4), and a Z-axis assembly housing (5) with a built-in light guide tube (6), characterized in that: A displacement mirror assembly (2) is arranged between the fiber laser output connector (1) and the entrance side of the light guide tube (6), and the mirror mount (21) on the displacement mirror assembly (2) can move relative to the light guide tube (6); the rotating shaft assembly (3) includes a C-axis mirror mount (31) and a B-axis mirror mount (32), and a working position slot (315) adjacent to the mirror mount body (311) is provided on the C-axis mirror mount (31) and the B-axis mirror mount (32), respectively. The working position slot (315) is used to insert a tray equipped with a carbon dioxide laser reflector (317) or a fiber laser reflector (318); the laser cutting head (4) is provided with a focusing lens socket (42) for accommodating a focusing lens mount (41), and the focusing lens socket (42) is used to insert a carbon dioxide laser focusing lens mount or a fiber laser focusing lens mount.

2. The dual-band Z-axis assembly for three-dimensional laser processing equipment according to claim 1, characterized in that: The C-axis reflector mount (31) and the B-axis reflector mount (32) are provided with a reflector identification module (3111), which is used to identify the first lens tray (313) equipped with a carbon dioxide laser reflector (317) and the second lens tray (314) equipped with a fiber laser reflector (318).

3. The dual-band Z-axis assembly for three-dimensional laser processing equipment according to claim 2, characterized in that: The front end of the first lens tray (313) is provided with a double-contact sensor (3131). When the double-contact sensor (3131) touches the reflector recognition module (3111) with contact, the reflector recognition module (3111) will output a dual-channel signal to the control center. The control center confirms that the first lens tray (313) equipped with the carbon dioxide laser reflector (317) has been inserted into the working position slot (315). The front end of the second lens tray (314) is provided with a single-contact sensor (3141). When the single-contact sensor (3141) touches the reflector recognition module (3111) with contact, the reflector recognition module (3111) will output a single-channel signal to the control center. The control center confirms that the second lens tray (314) equipped with the fiber laser reflector (318) has been inserted into the working position slot (315).

4. The dual-band Z-axis assembly for three-dimensional laser processing equipment according to claim 1, characterized in that: The focusing lens socket (42) is equipped with a focusing lens identification module, which is used to identify a carbon dioxide laser focusing lens mount equipped with a carbon dioxide laser focusing lens or a fiber laser focusing lens mount equipped with a fiber laser focusing lens.

5. The dual-band Z-axis assembly for a three-dimensional laser processing equipment according to claim 4, characterized in that: The front end of the carbon dioxide laser focusing lens mount is provided with a double-contact sensor (3131). When the double-contact sensor (3131) comes into contact with the focusing lens identification module with contacts, the focusing lens identification module will output a dual-channel signal to the control center. The control center confirms that the carbon dioxide laser focusing lens mount equipped with the carbon dioxide laser focusing lens has been inserted into the focusing lens socket (42). The front end of the fiber laser focusing lens mount is provided with a single-contact sensor (3141). When the single-contact sensor (3141) comes into contact with the focusing lens identification module with contacts, the focusing lens identification module will output a single-channel signal to the control center. The control center confirms that the fiber laser focusing lens mount equipped with the fiber laser focusing lens has been inserted into the focusing lens socket (42).

6. The dual-band Z-axis assembly for three-dimensional laser processing equipment according to claim 1, characterized in that: The displacement mirror assembly (2) includes a mirror mount (21) with a mirror suitable for reflecting carbon dioxide laser, a displacement guide rail (22) and a drive mechanism (23). The displacement guide rail (22) is mounted on the base plate of the displacement mirror assembly (2) and the mirror mount (21) is slidably connected to the displacement guide rail (22). The drive mechanism (23) can drive the mirror mount (21) to move back and forth along the displacement guide rail (22). When the mirror mount (21) moves to the working position, the mirror mount (21) is between the fiber laser output connector (1) and the light guide tube (6) and the light outlet of the mirror mount (21) is coaxially connected to the light guide tube (6). When the mirror mount (21) moves to the waiting position on one side of the light guide tube (6), the light outlet of the fiber laser output connector (1) is coaxially suspended above the light guide tube (6) and the light guide tube (6) can receive the fiber laser output by the fiber laser output connector (1).

7. The dual-band Z-axis assembly for three-dimensional laser processing equipment according to claim 6, characterized in that: The displacement reflector assembly (2) further includes a limit block (24), a retractable magnetic induction switch (231), and an extended magnetic induction switch (232). The limit block (24), located on one side of the base plate of the displacement reflector assembly (2), is used to limit the working position of the reflector mount (21). The retractable magnetic induction switch (231) and the extended magnetic induction switch (232) are used to detect the position of the reflector mount (21) and are linked with the drive mechanism (23). When the reflector mount (21) moves to the working position, the reflector mount (21) abuts against the... Limit block (24) precisely positions the reflector mount (21) into place. The retractable magnetic induction switch (231) corresponding to the drive mechanism (23) sends a signal that the reflector mount (21) is in place, and the control center can confirm that the reflector mount (21) has reached the working position. When the reflector mount (21) moves to the waiting position away from the limit block (24), the extended magnetic induction switch (232) corresponding to the drive mechanism (23) sends a signal that the reflector mount (21) is in place, and the control center can confirm that the reflector mount (21) is in the waiting position.

8. The dual-band Z-axis assembly for a three-dimensional laser processing equipment according to any one of claims 1-7, characterized in that: The C-axis reflector mount (31) is mounted on the C-axis, which can rotate in the horizontal plane, and the B-axis reflector mount (32) is mounted on the B-axis, which can swing in the vertical plane. Both the C-axis reflector mount (31) and the B-axis reflector mount (32) are replaceable reflector mounts and both include a mount body (311) and a lens holder (312). The working position slot (315) is set on the lens holder (312).

9. The dual-band Z-axis assembly for a three-dimensional laser processing equipment according to claim 8, characterized in that: The lens holder (312) is provided with a working position slot (315) and a waiting position slot (316) arranged in parallel. The working position slot (315) is located near the lens base body (311), and the waiting position slot (316) is located away from the lens base body (311). A tray equipped with a carbon dioxide laser reflector (317) or a fiber laser reflector (318) can be inserted into the waiting position slot (316).

10. The dual-band Z-axis assembly for a three-dimensional laser processing equipment according to claim 9, characterized in that: Each of the working slot (315) and the waiting slot (316) is independently equipped with a mirror identification module (3111). The mirror identification module (3111) is used to identify whether the tray inserted into the working slot (315) is a first lens tray (313) equipped with a carbon dioxide laser reflector (317) or a second lens tray (314) equipped with a fiber laser reflector (318). The mirror identification module (3111) is used to identify whether the tray inserted into the waiting slot (316) is a first lens tray (313) equipped with a carbon dioxide laser reflector (317) or a second lens tray (314) equipped with a fiber laser reflector (318).

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