A multi-band mirror mount for a three-dimensional laser processing apparatus

Abstract

The utility model discloses a kind of multi-band mirror holder for three-dimensional laser processing equipment, including mirror holder body (1) and mirror holder shell (2), N lens mounting surfaces (12) are evenly arranged on the peripheral surface of mirror holder body (1) and N≥2, each lens mounting surface (12) is equipped with the laser reflector (13) of different wavelength laser can be received and reflected, driving device (3) is also installed on mirror holder shell (2), the driving device (3) can drive mirror holder body (1) rotate relative to mirror holder shell (2), to rotate corresponding laser reflector (13) to laser reflection position according to laser wavelength.The multi-band mirror holder provided by the utility model is provided with multiple lens mounting surfaces on mirror holder body, and each lens mounting surface is equipped with the laser reflector of different wavelength laser can be received and reflected, so that the laser reflector needed to be used is quickly replaced by rotating mirror holder body, so that different wavelength working laser is switched.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically a multi-band reflector mount 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 reflector mount for three-dimensional laser processing equipment.

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

[0009] A multi-band reflector mount for a three-dimensional laser processing equipment includes a mount body and a mount shell. The mount body has N lens mounting surfaces evenly distributed around its periphery, with N ≥ 2. Each lens mounting surface is equipped with a laser reflector capable of receiving and reflecting laser light of different wavelengths. A driving device is also installed on the mount shell, which can rotate the mount body relative to the mount shell to rotate the corresponding laser reflector to the laser reflection position according to the laser wavelength.

[0010] The mirror mount body is mounted inside the mirror mount housing via bearings. The output end of the drive device passes through the mirror mount housing and through the geometric center of both ends of the mirror mount body before being fixedly connected to the mirror mount body.

[0011] The drive device uses a servo motor to precisely control the rotation angle.

[0012] The lens mount body is a regular polyhedron, with N lens mounting surfaces evenly distributed on its circumference and drive connection surfaces on its end faces.

[0013] A reflector marking structure is provided on the end face of the lens mounting surface away from the driving device. This reflector marking structure can clearly identify the type of laser reflector.

[0014] The mirror mount housing is equipped with a sensor capable of recognizing the reflector marking structure. The sensor is located on the mirror mount housing away from the driving device and faces the reflector marking structure on the lens mounting surface of the laser reflection position.

[0015] The aforementioned reflector marking structure adopts a combination of bosses and grooves, and the different combinations of bosses and grooves are used to identify the type of laser reflector.

[0016] The lens mount body has four or five lens mounting surfaces evenly distributed around its periphery.

[0017] When the four-lens mounting body and the five-lens mounting body are used together, the four-lens mounting body is equipped with a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector and an ultraviolet laser reflector, respectively, and the five-lens mounting 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, respectively.

[0018] The upper side of the mirror housing is provided with a light inlet and the bottom is provided with a light outlet, or the light inlet and the light outlet are located at the same place on the mirror housing.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The multi-band reflector mount provided by this utility model has multiple lens mounting surfaces on the mount body, and each lens mounting surface is equipped with a laser reflector capable of receiving and reflecting lasers of different wavelengths. By rotating the mount body, the laser reflector to be used can be quickly replaced, thereby switching between different wavelengths of working lasers. This multi-band reflector mount can be used for the design of multi-band three-dimensional laser processing equipment or for the transformation and upgrading of existing single-band laser processing equipment. Attached Figure Description

[0021] Appendix Figure 1 A schematic diagram of the structure of a multi-band reflector mount for a three-dimensional laser processing equipment provided in an embodiment of this utility model;

[0022] Appendix Figure 2 One of the structural schematic diagrams of the multi-band reflector mount provided in the embodiments of this utility model when the outer shell of the mount is removed;

[0023] Appendix Figure 3 This is the second schematic diagram of the structure of the multi-band reflector mount provided in the embodiment of this utility model when the outer shell of the mount is removed.

[0024] Wherein: 1—Mirror mount body; 11—Drive connection surface; 12—Lens mounting surface; 13—Laser reflector; 2—Mirror mount housing; 3—Drive device; 41—Light inlet; 42—Light outlet; 5—Sensor; 6—Boss; 7—Groove. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] like Figure 1-3As shown: A multi-band reflector mount for a three-dimensional laser processing equipment includes a mount body 1, a mount housing 2, and a drive device 3. The mount body 1 is mounted inside the mount housing 2 via bearings. The output end of the drive device 3 passes through the mount housing 2 and through the geometric center of both ends of the mount body 1, and is fixedly connected to the mount body 1. The mount body 1 is a regular polyhedron. N lens mounting surfaces 12 are evenly distributed on the circumference of the mount body 1, and the end faces are all drive connection surfaces 11. Each lens mounting surface 12 is equipped with a laser reflector 13 that can receive and reflect lasers of different wavelengths. The drive device 3 can drive the mount body 1 to rotate relative to the mount housing 2, so as to rotate the corresponding laser reflector 13 to the laser reflection position according to the laser wavelength. The drive device 3 is preferably a servo motor that can precisely control the rotation angle.

[0028] like Figure 2-3 As shown: To improve positioning accuracy, a reflector marking structure is provided on the end face of the lens mounting surface 12 away from the driving device 3. This reflector marking structure can clearly identify the type of laser reflector 13. Furthermore, a sensor 5 capable of identifying the reflector marking structure is installed on the lens housing 2. The sensor 5 is located on the lens housing 2 away from the driving device 3 and is positioned directly opposite the reflector marking structure on the lens mounting surface 12 at the laser reflection position. In one embodiment, the reflector marking structure adopts a combination of a boss 6 and a groove 7. Different combinations of the boss 6 and the groove 7 can be used to identify the type of laser reflector 13.

[0029] like Figure 1 As shown: a light inlet 41 is provided on the upper side of the mirror housing 2 and a light outlet 42 is provided at the bottom, such as a B-axis reflector housing; or the light inlet 41 and the light outlet 42 are located at the same place on the mirror housing 2, such as a C-axis reflector housing.

[0030] Example 1

[0031] like Figure 1 , Figure 2As shown: A multi-band reflector mount for a three-dimensional laser processing equipment includes a mount body 1, a mount housing 2 with an inlet 41 and an outlet 42, and a drive device 3. The mount body 1 is mounted inside the mount housing 2 via bearings. The output end of the drive device 3 passes through the mount housing 2 and through the geometric center of both ends of the mount body 1, and is fixedly connected to the mount body 1. The mount body 1 is a regular polyhedron. Four lens mounting surfaces 12 are evenly distributed on the periphery of the mount body 1, and the end faces are all drive connection surfaces 11. Each lens mounting surface 12 is equipped with a laser reflector 13 that can receive and reflect lasers of different wavelengths. Specifically, the four laser reflectors 13 are a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector. The drive device 3 can drive the mount body 1 to rotate relative to the mount housing 2, so as to rotate the corresponding laser reflector 13 to the laser reflection position according to the laser wavelength. The drive device 3 is preferably a servo motor that can precisely control the rotation angle.

[0032] like Figure 2-3 As shown: To improve positioning accuracy, a reflector marking structure composed of a boss 6 and a groove 7 is provided on the end face of the lens mounting surface 12 away from the driving device 3. The four reflector marking structures correspond one-to-one with the carbon dioxide laser reflector, green laser reflector, blue laser reflector and ultraviolet laser reflector, respectively. In addition, three sensors 5 that can identify the reflector marking structure are installed on the lens mounting surface 12 away from the driving device 3. The three sensors 5 are set on the lens mounting surface 2 away from the driving device 3 and are set directly opposite the reflector marking structure on the lens mounting surface 12 of the laser reflection position.

[0033] To ensure that the reflector type on the mirror mount 1 is correct when rotated to the laser reflection position, this invention employs a dual confirmation mode of motor angle confirmation and sensor confirmation to verify that the reflector type at the laser reflection position is correct.

[0034] The method for confirming and controlling the mirror type corresponding to the laser reflection position in the multi-band mirror mount provided in Example 1 is as follows:

[0035] Confirmation of motor angles for mirror mount body 1: The mirror mount body 1 has four lens mounting surfaces 12 on its circumference, with an angle difference of 90° between each surface. If the servo motor angle when one lens mounting surface 12 is in the laser reflection position is defined as 0°, then the servo motor angles when the other three lens mounting surfaces 12 are in the laser reflection position are 90°, 180°, and 270° respectively. The motor angles and reflector types are set according to Table 1 through the control center.

[0036] Table 1. Examples of Motor Angles and Mirror Types for Reflector Mounts

[0037] 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

[0038] When the carbon dioxide laser reflector needs to be rotated to the laser reflection position, the control center sends a command to the servo motor. The servo motor drives the mirror mount body 1 to rotate to the 0° position. After rotating to the position, the servo motor sends a 0° positioning signal back to the control center, thus completing the motor angle confirmation.

[0039] Sensor position confirmation of the lens mount body 1: Three sensors 5 are provided on the lens mount housing 2. The sensors 5 are non-contact inductive sensors. The three sensors 5 are arranged in a row at equal intervals and face the side end face of the lens mounting surface 12 of the laser reflection position. Each of the four lens mounting surfaces 12 has a combination structure of protrusions 6 and grooves 7 corresponding to the sensors 5. When any lens mounting surface 12 is rotated to the laser reflection position, the sensors 5 can identify different lens types through the specific combination structure of grooves 7 and protrusions 6 on the side of the lens mounting surface 12. The distance between the sensor 5 facing the protrusion 6 and the top of the protrusion 6 is less than the sensing distance, so it can generate an inductive signal and feed back signal 1 to the control center. The sensor 5 facing the groove 7 is facing an empty space. 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 sensors 5 can identify four different lens mounting surfaces 12 through the combination structure provided in Table 3. This example combination structure is not unique. As long as it can identify four different lenses, this function can be achieved.

[0040] Table 2 Figure 2 Example table of the arrangement of bosses and grooves when the mirror mount body rotates counterclockwise.

[0041] 1 Convex and concave 101 Carbon dioxide laser reflector 10.6μm 2 convex convex 111 Green laser reflector 532nm 3 Concave and convex 011 Blue laser reflector 450nm 4 Concave and convex 001 Ultraviolet laser reflector 355nm

[0042] Dual confirmation of the mirror mount 1: After the control center receives angle confirmation information from the servo motor and signal confirmation information from sensor 5, it compares the two confirmation messages. If the two confirmation messages point to the same type of laser reflector, it can be confirmed that the laser reflector in the laser reflection position is correct. For example, if the motor angle fed back by the servo motor is 0°, corresponding to a carbon dioxide laser reflector, and the signal fed back by sensor 5 is 101, also corresponding to a carbon dioxide laser reflector, then it is confirmed that the lens in the laser reflection position on the mirror mount 1 is a carbon dioxide laser reflector.

[0043] Example 2

[0044] The difference between Embodiment 2 and Embodiment 1 is as follows: 1. Five lens mounting surfaces 12 are evenly distributed on the circumference of the lens mount body 1. Five laser reflectors 13 capable of receiving and reflecting lasers of different wavelengths are mounted on the five lens mounting surfaces 12. Specifically, the five laser reflectors 13 are a carbon dioxide laser reflector, a fiber laser reflector, a green laser reflector, a blue laser reflector, and an ultraviolet laser reflector; 2. The combination structure of five sets of protrusions 6 and grooves 7 forms five sets of reflector marking structures. The five sets of reflector marking structures correspond one-to-one with the carbon dioxide laser reflector, fiber laser reflector, green laser reflector, blue laser reflector, and ultraviolet laser reflector.

[0045] The method for confirming and controlling the mirror type corresponding to the laser reflection position in the multi-band mirror mount provided in Example 1 is as follows:

[0046] Confirmation of motor angles for mirror mount 1: Five lens mounting surfaces 12 are provided on the circumference of mirror mount 1, with an angle difference of 72° between each surface. If the servo motor angle when one lens mounting surface 12 is in the laser reflection position is defined as 0°, then the motor angles when the other four lens mounting surfaces 12 are in the laser reflection position are 72°, 144°, 216°, and 288° respectively. The motor angles and reflector types are set according to Table 3 through the control center.

[0047] Table 3. Examples of Motor Angles and Mirror Types for Reflector Mounts

[0048] 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

[0049] When the fiber laser reflector needs to be rotated to the laser reflection position, the control center sends a command to the servo motor. The servo motor drives the mirror mount 1 to rotate to the 72° position. After the rotation is in place, the servo motor sends a 72° positioning signal back to the control center, thus confirming the motor angle.

[0050] Sensor confirmation on the lens mount body 1: Three sensors 5 are installed on the lens mount housing 2, all of which are non-contact inductive sensors. The three sensors 5 are arranged in a row at equal intervals and face the side end face of the lens mounting surface 12 where the laser reflection position is located. Each of the five lens mounting surfaces 12 has a combination structure consisting of a protrusion 6 and a groove 7 corresponding to the sensor 5 as a lens identification structure. When any lens mounting surface 12 is rotated to the laser reflection position, the sensor 5 can identify different lens types through the specific lens identification structure on the side of the lens mounting surface 12. The sensor 5 facing the protrusion 6 is less than the sensing distance from the top of the protrusion 6, and can generate an inductive signal and feed back signal 1 to the control center. The sensor 5 facing the groove 7 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 sensors 5 can identify five different lens mounting surfaces 12 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.

[0051] Table 4 Figure 3 Example table of the arrangement of bosses and grooves when the mirror mount body rotates counterclockwise.

[0052] 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

[0053] Dual confirmation of the mirror mount 1: After the control center receives angle confirmation information from the servo motor and signal confirmation information from sensor 5, it compares the two confirmation messages. If the two confirmation messages indicate the same type of laser reflector, it can be confirmed that the laser reflector at the laser reflection position is correct. For example, if the motor angle fed back by the servo motor is 72°, corresponding to a fiber laser reflector, and the signal fed back by sensor 5 is 111, also corresponding to a fiber laser reflector, then it is confirmed that the laser reflector at the laser reflection position on the mirror mount 1 is a fiber laser reflector.

[0054] The multi-band reflector mount provided by this utility model has multiple lens mounting surfaces 12 on the mount body 1, and each lens mounting surface 12 is equipped with a laser reflector 13 that can receive and reflect lasers of different wavelengths. By rotating the mount body 1, the laser reflector 13 to be used can be quickly replaced, thereby switching between different wavelengths of working lasers. This multi-band reflector mount can be used for the design of multi-band three-dimensional laser processing equipment or for the transformation and upgrading of existing single-band laser processing equipment.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 reflector mount for a three-dimensional laser processing equipment, comprising a mount body (1) and a mount shell (2), characterized in that: N lens mounting surfaces (12) are evenly distributed on the periphery of the lens mount body (1) and N≥2. Each lens mounting surface (12) is equipped with a laser reflector (13) that can receive and reflect lasers of different wavelengths. A driving device (3) is also installed on the lens mount shell (2). The driving device (3) can drive the lens mount body (1) to rotate relative to the lens mount shell (2) so as to rotate the corresponding laser reflector (13) to the laser reflection position according to the laser wavelength.

2. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 1, characterized in that: The mirror mount body (1) is installed inside the mirror mount housing (2) by bearings. The output end of the drive device (3) passes through the mirror mount housing (2) and through the geometric center of both ends of the mirror mount body (1), and is fixedly connected to the mirror mount body (1).

3. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 1, characterized in that: The drive device (3) uses a servo motor to precisely control the rotation angle.

4. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 1, characterized in that: The lens mount body (1) is a regular polyhedron. N lens mounting surfaces (12) are evenly distributed on the periphery of the lens mount body (1), and the end surfaces are all driving connection surfaces (11).

5. The multi-band reflector mount for a three-dimensional laser processing equipment according to any one of claims 1-4, characterized in that: A reflector marking structure is provided on the end face of the lens mounting surface (12) away from the driving device (3), which can clearly identify the type of laser reflector (13).

6. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 5, characterized in that: The mirror housing (2) is equipped with a sensor (5) capable of recognizing the reflector marking structure. The sensor (5) is located on the mirror housing (2) away from the driving device (3) and is positioned opposite the reflector marking structure on the lens mounting surface (12) of the laser reflection position.

7. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 5, characterized in that: The reflector marking structure adopts a combination of boss (6) and groove (7). Different combinations of boss (6) and groove (7) are used to identify the type of laser reflector (13).

8. The multi-band reflector mount for three-dimensional laser processing equipment according to claim 1, characterized in that: The lens mount body (1) is provided with four or five lens mounting surfaces (12) evenly distributed on its circumference.

9. The multi-band reflector mount for a three-dimensional laser processing equipment according to claim 8, characterized in that: When the four lens mounting surfaces (12) and the five lens mounting surfaces (12) are used together, the four lens mounting surfaces (12) are respectively equipped with a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector and an ultraviolet laser reflector, and the five lens mounting surfaces (12) are respectively equipped with a carbon dioxide laser reflector, a green laser reflector, a blue laser reflector, an ultraviolet laser reflector and a fiber laser reflector.

10. The multi-band reflector mount for a three-dimensional laser processing equipment according to claim 1, characterized in that: The upper side of the mirror housing (2) is provided with a light inlet (41) and the bottom is provided with a light outlet (42), or the light inlet (41) and the light outlet (42) are located at the same place on the mirror housing (2).

Images