Rapid switching device for laser light paths

Abstract

The utility model relates to the technical field of laser switching, in particular to a laser light path rapid switching device which comprises a mounting plate, a conveying mechanism is mounted on the mounting plate, the conveying mechanism comprises a beam expander, the beam expander is mounted on the mounting plate, a switching mechanism is mounted on the mounting plate, the switching mechanism comprises a linear motor, and the linear motor is mounted on the mounting plate. A fixing seat is mounted on the linear motor, a vertical plate is vertically connected to one end of the fixing seat, a connecting plate is mounted on one side of the vertical plate, a DOE is vertically connected to one side of the connecting plate, and the DOE is located in the center of the bottom of the beam expander; through the work of the linear motor, the DOE on the connecting plate can be located at the bottom of the beam expanding lens, the laser of the beam expanding lens can be shielded, light spot patterns of the laser emitted by the beam expanding lens can be switched, different light spot patterns can be achieved through one laser, and therefore rapid machining is conducted, the cost is saved, and the laser and the space are saved.

Description

Technical Field

[0001] The utility model relates to a switching device, in particular to a laser light path fast switching device, belonging to the technical field of laser switching. Background Art

[0002] In modern manufacturing, precision machining and scientific research, laser technology has become an indispensable core technology due to its significant advantages such as high energy density, high directionality and high monochromaticity. From laser cutting and welding to laser marking and micromachining, the precise control of the laser light path directly determines the processing efficiency, accuracy and quality of the finished product.

[0003] With the increasing demand for flexibility and intelligence in industrial production, a single laser light path can no longer meet the diverse processing needs under complex working conditions. For example, on the same production line, for workpieces of different materials and thicknesses, or different processing steps of the same workpiece, it is often necessary to switch to different laser spot shapes (such as circular, linear, array, etc.) to achieve the best processing effect.

[0004] Traditional laser spot switching methods mostly use manual replacement of optical modules or configuration of multiple independent lasers. Manual replacement is not only cumbersome and inefficient, but also prone to optical path deviation due to manual operation errors, affecting processing accuracy. Although the multi-laser solution can achieve fast switching, it requires multiple light sources and supporting optical systems, which not only greatly increases equipment costs, but also takes up more installation space, while also increasing the complexity and energy consumption of equipment maintenance.

[0005] Therefore, developing a laser light path fast switching device with compact structure, fast switching, precise positioning and controllable cost to achieve efficient switching of various spot shapes under a single laser system has become a key technical problem that needs to be solved urgently in the current laser processing field. Utility Model Content

[0006] The purpose of the present utility model is to provide a laser light path fast switching device in order to solve the above problems. Through the operation of the linear motor, the DOE on the connecting plate is located at the bottom of the beam expander, which is beneficial to blocking the laser of the beam expander, and then switching the spot pattern of the laser coming out of the beam expander, so that a laser can achieve different spot patterns, thereby performing fast processing, saving costs, saving lasers, and saving space.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a laser light path rapid switching device, comprising a mounting plate, a conveying mechanism mounted on the mounting plate, the conveying mechanism comprising a beam expander, a beam expander mounted on the mounting plate, a switching mechanism mounted on the mounting plate, the switching mechanism comprising a linear motor, a linear motor mounted on the mounting plate, a fixed seat mounted on the linear motor, one end of the fixed seat being vertically connected to a vertical plate, a connecting plate being mounted on one side of the vertical plate, a DOE being vertically connected to one side of the connecting plate, and the DOE being located at the bottom center of the beam expander.

[0008] Preferably, the connecting plate is slidably connected to one side of the vertical plate, a voice coil motor is installed on the top of the vertical plate, and the output shaft of the voice coil motor is connected to the top of the connecting plate.

[0009] Preferably, the vertical plate is a "7"-shaped structure, and the voice coil motor is connected to the center of the top of the vertical plate.

[0010] Preferably, a grating ruler is installed on one side of the linear motor and the vertical plate respectively, and one side of the fixing seat and the connecting plate is slidably connected to one side of the grating ruler.

[0011] Preferably, a light inlet tube is installed on the mounting plate, a light gate is installed at one end of the light inlet tube, a reflector is installed on one side of the light gate, and the reflector is located on the top of the beam expander.

[0012] Preferably, a mounting seat is installed on the mounting plate, two mounting sleeves are installed on the top of the mounting seat, and the outer sides of both ends of the beam expander are snap-connected with the two mounting sleeves.

[0013] Preferably, the side walls of the two mounting sleeves are respectively threadedly connected with a plurality of screws, one end of the plurality of screws respectively extends to the inner side of the mounting sleeve, one end of the plurality of screws respectively is rotatably connected with a pressure plate, and the plurality of pressure plates are in contact with the outer side of the beam expander.

[0014] Preferably, the pressure plate is an arc-shaped structure, and a rubber pad is installed on one side of the pressure plate, and the rubber pad contacts the beam expander.

[0015] Preferably, an adjustment mechanism is installed on the mounting seat, and the adjustment mechanism includes a slider. Sliders are slidably connected to the inside of each end of the mounting seat, and the tops of the two sliders extend to the outside of the mounting seat and are connected to the bottoms of the two mounting sleeves. The mounting sleeves are slidably connected to the top of the mounting seat through the sliders. The inner sides of the two ends of the mounting seat are rotatably connected to the screw rods, and the bottoms of the sliders are threadedly connected to the screw rods, and the screw rods extend to the outside of the mounting seat.

[0016] Preferably, a torsion bar is installed at one end of each of the two screw rods, and the outer side wall of the torsion bar is a wavy structure.

[0017] The beneficial effects of the present invention are as follows: the installation of the mounting plate facilitates the connection of the beam expander, and the installation of the beam expander facilitates the introduction of the incoming laser onto the laser head, thereby realizing material processing; the operation of the linear motor enables the fixing seat to carry the connecting plate on the vertical plate to move to a certain position, which facilitates the DOE on the connecting plate to be located at the bottom of the beam expander, thereby facilitating the shielding of the laser beam from the beam expander, and thereby switching the spot pattern of the laser beam coming out of the beam expander, so that one laser can realize different spot patterns, thereby performing rapid processing, saving costs, saving lasers, and saving space; when the DOE is not in use, the linear motor resets, and the DOE is away from the bottom of the beam expander, thereby realizing rapid switching of the two lasers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the vertical plate and the linear motor of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection structure between the mounting sleeve and the mounting base of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the slider and the mounting sleeve of the utility model.

[0022] In the figure: 1. Mounting plate; 2. Conveying mechanism; 201. Light inlet tube; 202. Optical shutter; 203. Reflector; 204. Beam expander; 205. Mounting seat; 206. Mounting sleeve; 207. Screw; 208. Pressure plate; 209. Rubber pad; 3. Switching mechanism; 301. Linear motor; 302. Fixed seat; 303. DOE; 304. Voice coil motor; 305. Connecting plate; 306. Vertical plate; 307. Grating scale; 4. Adjusting mechanism; 401. Turning knob; 402. Screw; 403. Slider. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-4As shown, a laser light path rapid switching device includes a mounting plate 1, a conveying mechanism 2 is installed on the mounting plate 1, the conveying mechanism 2 includes a beam expander 204, the beam expander 204 is installed on the mounting plate 1, a switching mechanism 3 is installed on the mounting plate 1, the switching mechanism 3 includes a linear motor 301, a linear motor 301 is installed on the mounting plate 1, a fixed seat 302 is installed on the linear motor 301, one end of the fixed seat 302 is vertically connected to a vertical plate 306, a connecting plate 305 is installed on one side of the vertical plate 306, a DOE 303 is vertically connected to one side of the connecting plate 305, and the DOE 303 is located at the bottom center of the beam expander 204.

[0025] As a technical optimization solution of the present invention, the connecting plate 305 is slidably connected to one side of the vertical plate 306, and a voice coil motor 304 is installed on the top of the vertical plate 306. The output shaft of the voice coil motor 304 is connected to the top of the connecting plate 305. Through the operation of the voice coil motor 304, the connecting plate 305 and one side of the vertical plate 306 can be slid to adjust the position, so that the DOE303 can be adjusted up and down, ensuring that the DOE303 is concentric with the beam expander 204.

[0026] As a technical optimization solution of the present invention, the vertical plate 306 is a "7"-shaped structure, and the voice coil motor 304 is connected to the top center of the vertical plate 306, which is conducive to the installation of the voice coil motor 304 and further realizes the drive control of the connecting plate 305.

[0027] As a technical optimization solution of the present invention, a grating ruler 307 is installed on one side of the linear motor 301 and the vertical plate 306 respectively, and the fixed seat 302 and the connecting plate 305 are slidingly connected to one side of the grating ruler 307. Through the installation of the grating ruler 307, it is convenient to detect the sliding position of the fixed seat 302 and the connecting plate 305, so as to realize precise control of the position of the DOE303.

[0028] As a technical optimization solution of the present invention, a light inlet tube 201 is installed on the mounting plate 1, a light gate 202 is installed at one end of the light inlet tube 201, a reflector 203 is installed on one side of the light gate 202, and the reflector 203 is located on the top of the beam expander 204. The installation of the light inlet tube 201 facilitates the entry of laser light, and the control of the light gate 202 allows the laser light to pass through the reflector 203 and enter the interior of the beam expander 204, and then the laser light is processed and exported for use.

[0029] As a technical optimization solution of the present invention, a mounting seat 205 is installed on the mounting plate 1, and two mounting sleeves 206 are installed on the top of the mounting seat 205. The outer sides of both ends of the collimator 204 are engaged with the two mounting sleeves 206. The installation of the mounting seat 205 facilitates the connection of the two mounting sleeves 206. The installation of the two mounting sleeves 206 can achieve stable support for the collimator 204.

[0030] As a technical optimization solution of the present invention, the side walls of the two mounting sleeves 206 are respectively threadedly connected with multiple screws 207, one end of the multiple screws 207 respectively extends to the inner side of the mounting sleeves 206, and one end of the multiple screws 207 are respectively rotatably connected with pressure plates 208, and the multiple pressure plates 208 are in contact with the outer side of the collimator 204. The installation of the multiple screws 207 is conducive to the installation of the multiple pressure plates 208. The installation of the multiple pressure plates 208 can achieve contact with the collimator 204, which is conducive to the stable installation of the collimator 204 and the mounting sleeve 206. At the same time, the screws 207 are rotated to achieve the pressure plate 208 to fine-tune the position of the collimator 204, so that the collimator 204 can maintain a stable state to export the laser.

[0031] As a technical optimization solution of the present invention, the pressure plate 208 is an arc-shaped structure, and a rubber pad 209 is installed on one side of the pressure plate 208. The rubber pad 209 contacts the collimator 204, which is conducive to the close fit between the pressure plate 208 and the outer side of the collimator 204, and the rubber pad 209 plays a role in preventing slipping and wear.

[0032] As a technical optimization solution of the present invention, an adjustment mechanism 4 is installed on the mounting seat 205, and the adjustment mechanism 4 includes a slider 403. The sliders 403 are respectively slidably connected inside the two ends of the mounting seat 205, and the tops of the two sliders 403 extend to the outside of the mounting seat 205 and are connected to the bottoms of the two mounting sleeves 206. The mounting sleeves 206 are slidably connected to the top of the mounting seat 205 through the sliders 403. The inner sides of the two ends of the mounting seat 205 are respectively rotatably connected with screw rods 402, and the bottoms of the sliders 403 are threadedly connected to the screw rod 402. The screw rod 402 extends to the outside of the mounting seat 205. The installation of the slider 403 facilitates the sliding adjustment of the mounting sleeve 206. Through the drive of the screw rod 402, the screw rod 402 accurately controls the position of the mounting sleeve 206 through the thread, thereby realizing the correction of the beam expander 204.

[0033] As a technical optimization solution of the present invention, a twist 401 is respectively installed at one end of the two screw rods 402, and the outer wall of the twist 401 is a wavy structure. Through the installation of the twist 401, the drive control of the screw rod 402 is realized, the operation is more convenient, and the friction force is increased during manipulation, and the rotation is more precise.

[0034] When the present invention is in use, the beam expander 204 is first connected to the mounting plate 1 through the mounting seat 205 and the two mounting sleeves 206, and the two twists 401 are driven to realize the sliding of the screw rod 402 to control the sliding of the slider 403, thereby controlling the mounting sleeve 206 to adjust the angle of the beam expander 204, so as to facilitate the smooth extraction of the laser. At the same time, the pressure plate 208 is controlled by multiple screws 207 to accurately calibrate the beam expander 204. Then, the mounting plate 1 is installed at the specified position of the equipment to realize the introduction of the laser into the reflector 203 through the light inlet tube 201 and the light gate 202, and the laser is introduced into the interior of the beam expander 204 through the reflector 203, so that the laser is integrated and then shot into the laser head, so that the laser head can process the material. When it is necessary to switch the processing mode, the linear electric The operation of the machine 301 causes the fixed seat 302 to carry the connecting plate 305 on the vertical plate 306 to move to a certain position, which is conducive to the DOE303 on the connecting plate 305 being located at the bottom of the beam expander 204, and under the control of the voice coil motor 304, the connecting plate 305 controls the DOE303 to adjust its position up and down, ensuring that the DOE303 is concentric with the beam expander 204, which is conducive to shielding the laser of the beam expander 204, and then switching the spot pattern of the laser coming out of the beam expander 204, so that one laser can achieve different spot patterns, thereby performing fast processing, saving costs, saving lasers, and saving space. When the DOE303 is not in use, the linear motor 301 is reset, and the DOE303 is away from the bottom of the beam expander 204, realizing fast switching between the two lasers.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A laser light path fast switching device, comprising a mounting plate (1), characterized in that: A conveying mechanism (2) is mounted on the mounting plate (1), the conveying mechanism (2) includes a beam expander (204), the beam expander (204) is mounted on the mounting plate (1), a switching mechanism (3) is mounted on the mounting plate (1), the switching mechanism (3) includes a linear motor (301), the linear motor (301) is mounted on the mounting plate (1), a fixing seat (302) is mounted on the linear motor (301), one end of the fixing seat (302) is vertically connected to a vertical plate (306), one side of the vertical plate (306) is mounted with a connecting plate (305), one side of the connecting plate (305) is vertically connected to a DOE (303), and the DOE (303) is located at the bottom center of the beam expander (204).

2. The laser light path fast switching device according to claim 1, characterized in that: The connecting plate (305) is slidably connected to one side of the vertical plate (306); a voice coil motor (304) is installed on the top of the vertical plate (306); and an output shaft of the voice coil motor (304) is connected to the top of the connecting plate (305).

3. The laser light path fast switching device according to claim 2, characterized in that: The vertical plate (306) has a "7"-shaped structure, and the voice coil motor (304) is connected to the top center of the vertical plate (306).

4. The laser light path fast switching device according to claim 1, characterized in that: A grating ruler (307) is installed on one side of the linear motor (301) and the vertical plate (306), respectively. One side of the fixed seat (302) and the connecting plate (305) is slidably connected to one side of the grating ruler (307).

5. The laser light path fast switching device according to claim 1, characterized in that: A light inlet tube (201) is mounted on the mounting plate (1), a light gate (202) is mounted on one end of the light inlet tube (201), a reflector (203) is mounted on one side of the light gate (202), and the reflector (203) is located on top of the beam expander (204).

6. The laser light path fast switching device according to claim 1, characterized in that: A mounting seat (205) is mounted on the mounting plate (1), two mounting sleeves (206) are mounted on the top of the mounting seat (205), and the outer sides of both ends of the beam expander (204) are snap-connected to the two mounting sleeves (206).

7. The laser light path fast switching device according to claim 6, characterized in that: The side walls of the two mounting sleeves (206) are respectively threadedly connected with a plurality of screw rods (207), one end of each of the plurality of screw rods (207) extends to the inner side of the mounting sleeve (206), one end of each of the plurality of screw rods (207) is rotatably connected with a pressure plate (208), and the plurality of pressure plates (208) are in contact with the outer side of the beam expander (204).

8. The laser light path fast switching device according to claim 7, characterized in that: The pressing plate (208) is an arc-shaped structure, and a rubber pad (209) is installed on one side of the pressing plate (208), and the rubber pad (209) is in contact with the beam expander (204).

9. The laser light path fast switching device according to claim 8, characterized in that: An adjustment mechanism (4) is installed on the mounting seat (205), and the adjustment mechanism (4) includes a slider (403). The sliders (403) are slidably connected to the inside of the two ends of the mounting seat (205). The tops of the two sliders (403) extend to the outside of the mounting seat (205) and are connected to the bottoms of two mounting sleeves (206). The mounting sleeves (206) are slidably connected to the top of the mounting seat (205) through the sliders (403). The inner sides of the two ends of the mounting seat (205) are rotatably connected to the screw rods (402). The bottoms of the sliders (403) are threadedly connected to the screw rods (402), and the screw rods (402) extend to the outside of the mounting seat (205).

10. The laser light path fast switching device according to claim 9, characterized in that: One end of each of the two screw rods (402) is provided with a twisting member (401), and the outer side wall of the twisting member (401) is a wave-shaped structure.

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