CN211727894U

CN211727894U - Coaxial imaging structure suitable for precision laser cutting machine

Info

Publication number: CN211727894U
Application number: CN202020280644.1U
Authority: CN
Inventors: 官宇
Original assignee: Dezhong Suzhou Laser Technology Co ltd
Current assignee: Dezhong Suzhou Laser Technology Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-23
Anticipated expiration: 2030-03-09

Abstract

The utility model relates to a be applicable to coaxial formation of image structure of accurate laser cutting machine, including the processing platform, the top of processing platform is provided with the light source subassembly, and the light source subassembly top is provided with the lens subassembly, and the mirror subassembly that shakes is installed to the light path input of lens subassembly, shakes the light path input of mirror subassembly and installs reflection assembly, and one side of reflection assembly is provided with the image and catches the subassembly. Therefore, the superposition of the laser light path and the CCD light path can be realized, the system error caused by the possible displacement error is avoided, and the processing precision is higher. The required formation of processing platform adjustment period shortens, relies on the triaxial motion to adjust, can reduce equipment broad width size, and the whole overall dimension of equipment is littleer. The CCD offset calibration is not required to be carried out regularly, and the use is more convenient. The whole structure is simple, the existing auxiliary positioning system can be modified, and the implementation cost is low.

Description

Coaxial imaging structure suitable for precision laser cutting machine

Technical Field

The utility model relates to a coaxial formation of image structure especially relates to a be applicable to coaxial formation of image structure of accurate laser cutting machine.

Background

In the existing laser processing, a precision laser cutting machine performs processing such as cutting, marking, peeling, etching or 3D printing on a material to be acted on by laser. Therefore, the processing precision requirement of the equipment is high, so that many materials need to be accurately positioned, and the precision calibration of the equipment also has high requirement, so that the equipment is provided with the CCD auxiliary positioning system to become the standard configuration of the equipment.

As shown in fig. 3, the multi-position paraxial imaging system of the existing CCD auxiliary positioning system is mainly. When the equipment needs to process the point A, firstly, a CCD is needed to confirm the position of the point A, the point A is grabbed through the CCD and fed back to the system for data processing, and then the whole processing platform needs to move to the position A' rightwards; then laser beams enter from the galvanometer and are focused into light spots through the telecentric lens, and the point A is processed.

All the disadvantages are as follows during the implementation:

1. when positioning, the device needs to move a distance A-A', and a motion system generates displacement, which brings errors. Meanwhile, the error is a system error, cannot be eliminated and can only be reduced, and the error can be reflected during high-precision machining;

2. in the using process of the device, the state of the whole device is slightly changed, and the change can affect the size error of A-A', so that the paraxial device needs to be calibrated by CCD offset at regular time, and the implementation is not convenient.

3. In the normal production process of the equipment, the equipment needs to move one more distance A-A' for each positioning and processing, so that the production efficiency cannot be improved;

4. the customer processes the material with fixed breadth, and the galvanometer system needs to walk for a distance A-A' in addition to the stroke of the breadth of the processed material to complete positioning. Therefore, the fixed wide-width working platform needs longer stroke corresponding to the movement axis, and the whole wide width of the equipment is increased.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create a coaxial imaging structure suitable for a precision laser cutting machine, so that the coaxial imaging structure has industrial value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a be applicable to accurate laser cutting machine coaxial imaging structure.

The utility model discloses a be applicable to coaxial formation of image structure of accurate laser cutting machine, including processing platform, wherein: the processing platform is characterized in that a light source assembly is arranged above the processing platform, a lens assembly is arranged above the light source assembly, a vibrating mirror assembly is installed at the light path input end of the lens assembly, a reflecting assembly is installed at the light path input end of the vibrating mirror assembly, and an image capturing assembly is arranged on one side of the reflecting assembly.

Further, the coaxial imaging structure suitable for the precision laser cutting machine is described above, wherein the processing platform is an XYZ three-axis motion platform.

Furthermore, the coaxial imaging structure suitable for the precision laser cutting machine is described above, wherein the light source assembly is an annular light source, and the annular light source is an annular LED lamp.

Furthermore, the coaxial imaging structure suitable for the precision laser cutting machine is described above, wherein the lens assembly includes a mounting bracket, and a telecentric lens is mounted on the mounting bracket.

Furthermore, the coaxial imaging structure suitable for the precision laser cutting machine is characterized in that the reflection assembly comprises a positioning support, a reflector is arranged on the positioning support, and a coated lens is arranged on the reflector.

Still further, the coaxial imaging structure suitable for the precision laser cutting machine is characterized in that the image capturing component comprises an optical adjusting seat, a CCD camera is mounted on the optical adjusting seat, and the CCD camera is provided with an FA industrial lens.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. the superposition of the laser light path and the CCD light path can be realized, the system error caused by the possible displacement error is avoided, and the processing precision is higher.

2. The required formation of processing platform adjustment period shortens, relies on the triaxial motion to adjust, can reduce equipment broad width size, and the whole overall dimension of equipment is littleer.

3. The CCD offset calibration is not required to be carried out regularly, and the use is more convenient.

4. The whole structure is simple, the existing auxiliary positioning system can be modified, and the implementation cost is low.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic front structural view of a coaxial imaging structure suitable for a precision laser cutting machine.

Fig. 2 is a schematic top view of a coaxial imaging structure suitable for a precision laser cutting machine. (the arrow L1 is the laser path, and the arrow L2 is the CCD path)

Fig. 3 is a schematic diagram of a prior paraxial imaging system configuration.

The meanings of the reference symbols in the drawings are as follows.

1 processing platform 2 light source assembly

3 lens subassembly 4 galvanometer subassembly

5 reflection assembly 6 image capture assembly

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The coaxial imaging structure suitable for the precision laser cutting machine shown in fig. 1 and 2 comprises a processing platform 1, and is characterized in that: the light source assembly 2 is arranged above the processing platform 1, necessary illumination assistance is provided, and various use requirements such as cutting, marking, stripping, etching or 3D printing can be met. In order to have a better light path focusing guidance and focus the light into a light spot, a lens assembly 3 is arranged above the light source assembly 2. Meanwhile, in consideration of the requirements of leading-in and angle adjustment of laser beams, the input end of the light path of the lens component 3 is provided with the galvanometer component 4, and the input end of the light path of the galvanometer component 4 is provided with the reflecting component 5. In addition, in order to realize accurate focusing and positioning, positioning reference can be provided for a subsequent processing working surface, and an image capturing component 6 is arranged on one side of the reflecting component 5, so that the real-time tracking of a laser light path is realized. Therefore, the utility model discloses when implementing, can realize coaxial formation of image, that is to say that 6 camera light paths of image capture component and laser light path can reach basic coincidence.

Combine the utility model relates to an embodiment of preferred sees, considers the needs of daily processing, can satisfy the adjustment of multi-angle in order to adapt to different laser beam machining, and the processing platform 1 of chooseing for use is XYZ triaxial motion platform. Meanwhile, in order to satisfy effective illumination and avoid the occurrence of shadow shielding which may exist, the adopted light source assembly 2 is an annular light source which is an annular LED lamp.

Further, in order to satisfy effective optical path management and achieve focusing, the lens assembly 3 includes a mounting bracket, and a telecentric lens is mounted on the mounting bracket. Thus, more convenient assembly adjustment can be realized. Meanwhile, in consideration of effectively adjusting the steering angle of the laser light path, the adopted reflection assembly 5 comprises a positioning support, a reflector is arranged on the positioning support, and a coated lens is arranged on the reflector. Thus, the mirror reflects the laser light while transmitting visible light required for imaging by the image capturing unit 6.

Further see again, the utility model discloses an image capture subassembly 6 that adopts is including the optics regulation seat, installs the CCD camera on the optics regulation seat, and the CCD camera is provided with FA industrial lens. Thus, the optical adjusting seat can be adjusted during assembly, so that the optical path of the CCD camera and the optical path of the laser are basically overlapped.

It should be noted that the drawings are designed to exclude all auxiliary devices and components for a better understanding of the structural arrangement provided by the present invention, and merely illustrate the principle, and do not indicate that only the devices shown in the drawings are required to implement the present invention. Meanwhile, auxiliary devices and parts for reference are conventionally used in the field and are well known to the skilled person, and are not described in detail herein.

Through foretell expression of characters and combination of the attached drawing can be seen, adopt the utility model discloses afterwards, possess following advantage:

Furthermore, the indication directions or positional relationships described in the present invention are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or structure must have a specific direction or operate in a specific directional configuration, and therefore, should not be construed as limiting the present invention.

The terms "primary" and "secondary" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "primary" or "secondary" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Also, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "disposed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. And it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or component so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. Be applicable to coaxial formation of image structure of precision laser cutting machine, including processing platform, its characterized in that: the processing platform is characterized in that a light source assembly is arranged above the processing platform, a lens assembly is arranged above the light source assembly, a vibrating mirror assembly is installed at the light path input end of the lens assembly, a reflecting assembly is installed at the light path input end of the vibrating mirror assembly, and an image capturing assembly is arranged on one side of the reflecting assembly.

2. The coaxial imaging structure suitable for the precision laser cutting machine according to claim 1, characterized in that: the processing platform is an XYZ three-axis motion platform.

3. The coaxial imaging structure suitable for the precision laser cutting machine according to claim 1, characterized in that: the light source assembly is an annular light source which is an annular LED lamp.

4. The coaxial imaging structure suitable for the precision laser cutting machine according to claim 1, characterized in that: the lens assembly comprises a mounting bracket, and a telecentric lens is mounted on the mounting bracket.

5. The coaxial imaging structure suitable for the precision laser cutting machine according to claim 1, characterized in that: the reflection assembly comprises a positioning support, a reflector is arranged on the positioning support, and a coated lens is arranged on the reflector.

6. The coaxial imaging structure suitable for the precision laser cutting machine according to claim 1, characterized in that: the image capturing component comprises an optical adjusting seat, wherein a CCD camera is installed on the optical adjusting seat, and the CCD camera is provided with an FA industrial lens.