Red light beam combiner of laser marking machine

Abstract

The utility model provides a red light beam combiner of a laser marking machine, and relates to the field of laser marking equipment. Comprising a mounting base, a lens adjusting block, a red light generator and a one-way coated lens, a laser through hole is formed in one side of the mounting base, and a mounting groove communicated with the mounting base is formed in the opposite side; a red light mounting hole communicated with the mounting groove is formed in the top of the mounting base; the lens adjusting block is mounted in the mounting groove, the top surface of the lens adjusting block is an inclined surface opposite to the laser through hole, and the one-way coated lens is mounted on the inclined surface; a light path through hole is formed in the middle of the lens adjusting block in the laser direction. The bottom of the lens adjusting block is connected with the mounting base through three groups of adjusting structures, and the three groups of adjusting structures are respectively opposite to three corners of the bottom of the lens adjusting block; the three groups of adjusting structures penetrate through the bottom of the mounting base; the red light generator is mounted in the red light mounting hole. According to the laser marking device, the red light and the laser can be rapidly and preliminarily overlapped, the overlapped light path is finely adjusted to be accurately overlapped, and the laser marking effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser marking equipment field, specifically, relate to a laser marking machine red light beam combiner. BACKGROUND

[0002] Laser marking machine is the photo, mechatronics equipment that laser technology and computer technology are synthesized. Laser marking technology is gradually valued by people in the application of industry at home and abroad, and various new marking equipment emerges in an endless stream, and it is replacing the traditional marking method with its unique advantages, and can print marks on the surface of various mechanical parts, electronic components, integrated circuit modules, instruments, meters and various objects. Its working principle is that the laser is generated by the laser, focused by the focusing lens, and then irradiated to the surface of the marking object. Only when the marking object is located at the focal position, the marking effect is ideal.

[0003] In the laser processing industry, laser is often used for marking, cleaning and cutting of workpieces. The position of laser processing needs to be accurately positioned to ensure the quality of marking, cleaning and cutting of workpieces. Because the wavelength of 355nm and 1064nm laser is invisible, it is difficult to adjust the position of laser by visual observation. In order to reduce the difficulty of laser position adjustment, red light is used as auxiliary positioning indicating light in the prior art, and red light is overlapped with laser, and the position of laser is adjusted by visible red light.

[0004] However, in the existing equipment, it is difficult to overlap red light with laser, and the light path of red light and laser is easy to deviate, which affects the quality of marking, cleaning and cutting of workpieces. Utility model content

[0005] The utility model aims at providing a laser marking machine red light beam combiner, which can quickly overlap red light with laser, and fine tune the overlapped light path to make it accurate, so as to ensure the laser marking effect.

[0006] The embodiment of the utility model is realized as follows:

[0007] The embodiment of the utility model provides a laser marking machine red light beam combiner, which comprises a mounting base, a lens adjusting block, a red light generator and a one-way coated lens.

[0008] One side of the mounting base is provided with a laser through hole, and the other side of the mounting base opposite to the laser through hole is provided with a mounting groove, and the mounting groove is communicated with the laser through hole; the top of the mounting base is provided with a red light mounting hole, and the red light mounting hole is communicated with the mounting groove;

[0009] The lens adjusting block is installed in the installation groove, a top surface of the lens adjusting block is an inclined surface facing away from the laser through hole, and the unidirectional coated lens is installed on the inclined surface; a middle part of the lens adjusting block is provided with a light path through hole along a laser direction, and the light path through hole is opposite to and communicated with the laser through hole;

[0010] The bottom of the lens adjusting block is connected with the installation base through three groups of adjusting structures, and the three groups of adjusting structures are opposite to three corners of the bottom of the lens adjusting block respectively; the three groups of adjusting structures pass through the bottom of the installation base;

[0011] The red light generator is installed in the red light installation hole.

[0012] Further, based on the foregoing scheme, the bottom surface of the lens adjusting block is rectangular, and two groups of the adjusting structures correspond to two ends of an edge close to the laser through hole respectively.

[0013] Further, based on the foregoing scheme, the adjusting structure comprises a jackscrew and a tension spring, three jackscrews penetrate the installation base and abut against three corners of the bottom surface of the lens adjusting block respectively; three tension springs are located on the inner sides of the three jackscrews respectively, one end of the tension spring is fixedly connected with the bottom of the lens adjusting block, and the other end of the tension spring is fixed to the bottom of the installation base through a limiting pin.

[0014] Further, based on the foregoing scheme, the inclined surface is provided with a lens groove, and the unidirectional coated lens is installed in the lens groove.

[0015] Further, based on the foregoing scheme, the unidirectional coated lens is pressed tightly through locking bolts penetrating two sides of the lens groove.

[0016] Further, based on the foregoing scheme, one side of the installation base is provided with a fixing hole communicated with the red light installation hole, and the red light generator is fixed through locking bolts penetrating the fixing hole.

[0017] Further, based on the foregoing scheme, the side wall of the installation base is further provided with a galvanometer installation hole, a laser installation hole and an expansion installation hole respectively.

[0018] Further, based on the foregoing scheme, the inclined surface is 45°.

[0019] Compared with the prior art, the embodiments of the utility model have at least the following advantages or beneficial effects:

[0020] This application utilizes a laser through-hole on one side of the mounting base, through which the laser emitted by the laser generator passes. A mounting groove is formed on the opposite side of the laser through-hole for mounting a lens adjustment block. The top surface of the lens adjustment block is designed as an inclined surface for mounting a unidirectional coated lens. An optical path through-hole, opposite to and connected to the laser through-hole, is formed on the lens adjustment block, allowing the laser and red light to overlap and pass through each other. A red light mounting hole is formed on the top of the mounting base for mounting a red light generator. This red light through-hole connects to the mounting groove, allowing the red light emitted by the red light generator to be projected onto the unidirectional coated lens, reflected by the unidirectional coated lens, and overlapped with the laser. Three sets of adjustment structures are installed at the bottom of the mounting base, each opposite the bottom triangle of the lens adjustment block. These structures can be used to adjust the tilt angle of the lens adjustment block (front, back, left, right), thereby adjusting the laser and red light to achieve precise overlap. This application can quickly achieve initial overlap of red light and laser light, and then fine-tune the overlapped optical path to achieve precise overlap, ensuring effective laser marking. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of the red beam combiner of the laser marking machine according to an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the external structure of the red beam combiner of the laser marking machine according to an embodiment of this utility model;

[0024] Figure 3 This is a bottom view of the red beam combiner of the laser marking machine according to an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram showing the cooperation between the lens adjustment block and the adjustment structure in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the external structure of the red beam combiner of the laser marking machine according to another embodiment of the present invention.

[0027] Icon: 1-mounting base, 11-laser through hole, 12-mounting groove, 13-red light mounting hole, 14-fixing hole, 15-vibrating mirror mounting hole, 16-laser mounting hole, 17-expansion mounting hole, 2-lens adjusting block, 21-inclined surface, 22-optical path through hole, 23-lens groove, 24-locking bolt, 3-red light generator, 4-one-way coated lens, 5-adjusting structure, 51-setscrew, 52-tension spring, 53-limiting pin. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] Please refer to Figures 1-5 , which is a schematic diagram of the overall structure of a red light combiner of a laser marking machine,

[0030] The embodiment provides a red light combiner of a laser marking machine, which comprises a mounting base 1, a lens adjusting block 2, a red light generator 3 and a one-way coated lens 4.

[0031] A laser through hole 11 is formed on one side of the mounting base 1, and a mounting groove 12 is formed on the side of the mounting base 1 opposite to the laser through hole 11, and the mounting groove 12 is in communication with the laser through hole 11; a red light mounting hole 13 is formed on the top of the mounting base 1, and the red light mounting hole 13 is in communication with the mounting groove 12.

[0032] The lens adjusting block 2 is mounted in the mounting groove 12, the top surface of the lens adjusting block 2 is an inclined surface 21 facing away from the laser through hole 11, and the one-way coated lens 4 is mounted on the inclined surface 21; an optical path through hole 22 is formed in the middle of the lens adjusting block 2 along the laser direction, and the optical path through hole 22 is opposite to and in communication with the laser through hole 11.

[0033] The bottom of the lens adjusting block 2 is connected with the mounting base 1 through three sets of adjusting structures 5, and the three sets of adjusting structures 5 are opposite to the three corners of the bottom of the lens adjusting block 2 respectively; the three sets of adjusting structures 5 pass through the bottom of the mounting base 1.

[0034] The red light generator 3 is mounted in the red light mounting hole 13.

[0035] In the following, a red light combiner of a laser marking machine according to the present exemplary embodiment will be further described.

[0036] In some embodiments, refer to Figure 1The mounting base 1 is provided with a laser through hole 11 on one side, and a laser is mounted on the side close to the laser through hole 11, and the laser emitted by the laser can pass through the laser through hole 11. The mounting base 1 is provided with a mounting groove 12 on the side opposite to the laser through hole 11, the mounting groove 12 is communicated with the laser through hole 11, and the mounting groove 12 is used for mounting a lens adjusting block 2. The lens adjusting block 2 is used for mounting a unidirectional coated lens 4. By arranging the mounting groove 12 to mount the lens adjusting block 2, the unidirectional coated lens 4 can be conveniently replaced. The top surface of the lens adjusting block 2 is an inclined surface 21 facing away from the laser through hole 11, and the unidirectional coated lens 4 is mounted on the inclined surface 21. The inclined surface 21 is at an angle of 45°, so that the red light can be reflected vertically. The middle part of the lens adjusting block 2 is provided with a light path through hole 22 along the direction of the laser. The light path through hole 22 is opposite to and communicated with the laser through hole 11, so that the laser can pass through the light path through hole 22 and directly pass through the unidirectional coated lens 4 to coincide with the reflected red light.

[0037] Referring to Figure 2 The bottom of the lens adjusting block 2 is connected with the mounting base 1 through three sets of adjusting structures 5, and the three sets of adjusting structures 5 are opposite to the three corners of the bottom of the lens adjusting block 2 respectively. The three sets of adjusting structures 5 pass through the bottom of the mounting base 1, so that the lens adjusting block 2 can be adjusted through the three sets of adjusting structures 5 from the bottom of the mounting base 1. By arranging the three sets of adjusting structures 5 and arranging them opposite to the three corners of the bottom of the lens adjusting block 2 respectively, the inclination angles of the lens adjusting block 2 in multiple directions can be adjusted from the three bottom corners, and the reflection angle of the red light can be adjusted to coincide with the laser accurately.

[0038] In some embodiments, the top of the mounting base 1 is provided with a red light mounting hole 13, the red light mounting hole 13 is communicated with the mounting groove 12, and the red light mounting hole 13 is used for mounting a red light generator 3. The red light emitted by the red light generator 3 passes through the mounting groove 12 and is projected on the unidirectional coated lens 4, and is reflected vertically to coincide with the passing laser. It should be noted that the aperture of the red light mounting hole 13 communicated with the mounting groove 12 is smaller than the depth of the mounting groove 12, so that the red light mounting hole 13 can limit the red light generator 3 and facilitate installation.

[0039] As a preferred embodiment, the bottom surface of the lens adjusting block 2 is rectangular, and two sets of adjusting structures 5 correspond to two ends of one side close to the laser through hole 11 respectively, and form an L-shaped layout with the other set of adjusting structure 5. By adjusting one set of adjusting structure 5, one end of the lens adjusting block 2 can be raised or lowered, and the inclination angle thereof can be adjusted. By arranging the three sets of adjusting structures 5 in an L-shaped distribution, the front-back pitch, left-right pitch can be adjusted, and multi-directional and multi-angle adjustment can be realized.

[0040] In some embodiments, referring to Figures 3-4The adjusting structure 5 comprises three top screws 51 and three tension springs 52. The three top screws 51 are respectively arranged through the mounting base 1 and abut against three corners of the bottom surface of the lens adjusting block 2. One end of the top screw 51 is in arc shape and abuts against the bottom surface of the lens adjusting block 2 to support the lens adjusting block 2. The other end of the top screw 51 is provided with an internal hexagonal hole at the bottom end surface of the mounting base 1. By rotating the top screw 51 with a special tool, the top screw 51 is moved upward or downward, so that one of the corners of the lens adjusting block 2 is inclined upward or downward, and the inclination angle of the lens adjusting block 2 is adjusted. The three tension springs 52 are respectively arranged at the inner sides of the three top screws 51. One end of the tension spring 52 is fixedly connected to the bottom of the lens adjusting block 2, and the other end of the tension spring 52 is fixed to the bottom of the mounting base 1 through a limiting pin 53. The lens adjusting block 2 is tensioned and supported by the tension spring 52. When one of the top screws 51 is adjusted upward, the tension spring 52 adjacent to the top screw 51 is stretched, and the other two tension springs 52 are compressed, so that the lens adjusting block 2 is fixed. When the top screw 51 is restored to the original position, the lens adjusting block 2 is reset under the elastic action of the tension spring 52.

[0041] As a preferred embodiment, refer to Figure 4 The lens groove 23 is arranged on the inclined surface 21, and the one-way coated lens 4 is arranged in the lens groove 23. The one-way coated lens 4 is arranged in the lens groove 23, so that the lens can be easily replaced.

[0042] As a preferred embodiment, the one-way coated lens 4 is pressed by the locking bolt 24 arranged at both sides of the lens groove 23. That is, bolt holes are arranged on the inclined surface 21 at opposite sides of the lens groove 23. The locking bolt 24 is inserted into the bolt holes. The head of the locking bolt 24 has a large diameter, so that the one-way coated lens 4 can be pressed and fixed to prevent the one-way coated lens 4 from falling off.

[0043] As a preferred embodiment, refer to Figure 2 The mounting base 1 is provided with the fixing hole 14 communicating with the red light mounting hole 13. The red light generator 3 is fixed by the locking bolt 24 arranged in the fixing hole 14. The fixing hole 14 is preferably provided with two fixing holes 14 arranged above and below. After the red light generator 3 is inserted into the red light mounting hole 13, the locking bolt 24 is inserted into the two fixing holes 14 to lock and fix the red light generator 3, so that the red light generator 3 is prevented from moving and affecting the path of the red light, so that the laser and the red light cannot be accurately overlapped, and the laser marking is affected.

[0044] As a preferred embodiment, refer to Figure 5The side wall of the mounting base 1 is also provided with a galvanometer mounting hole 15, a laser mounting hole 16 and an extension mounting hole 17. The galvanometer mounting hole 15 is used for mounting a galvanometer, the laser mounting hole 16 is used for mounting a laser, and the extension mounting hole 17 can be used for mounting other optical devices according to actual needs.

[0045] In addition, unless explicitly specified or limited, in the embodiments of the present application, if the terms "mounting", "connecting" appear, they should be understood in a broad sense. For example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. If the terms "upper", "lower", "left", "right", "inner", "outer", "side" and other orientation terms appear, they are only the direction of the drawing or the orientation of the product when it is usually placed, and are only for the purpose of clearly describing the present application, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as a limitation on the present application. The terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance; "multiple" means at least two. In the embodiments of the present application, the relative positional relationship limitations such as parallel, perpendicular, aligned and the like are relative to the current process level, and are not strictly limited, and a small amount of deviation is allowed, such as approximately parallel, approximately perpendicular, approximately aligned and the like. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees.

[0046] The above is only some embodiments and implementations of the present application, and the protection scope of the present application is not limited thereto. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. Any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A red light combiner for a laser marking machine, characterized in that, The application relates to a red light laser device, which comprises a mounting base, a lens adjusting block, a red light generator and a one-way coated lens. A laser through hole is formed in one side of the mounting base, an installation groove is formed in the side of the mounting base opposite to the laser through hole, and the installation groove is communicated with the laser through hole; a red light installation hole is formed in the top of the mounting base, and the red light installation hole is communicated with the installation groove; The lens adjusting block is installed in the installation groove, the top surface of the lens adjusting block is an inclined surface facing away from the laser through hole, and the one-way coated lens is installed on the inclined surface; a light path through hole is formed in the middle of the lens adjusting block along the laser direction, the light path through hole is opposite to and communicated with the laser through hole; The bottom of the lens adjusting block is connected with the mounting base through three groups of adjusting structures, the three groups of adjusting structures are opposite to the three corners of the bottom of the lens adjusting block respectively, and the three groups of adjusting structures pass through the bottom of the mounting base; The red light generator is installed in the red light installation hole.

2. The laser marker red light combiner of claim 1, wherein, The bottom surface of the lens adjusting block is rectangular, and two groups of the adjusting structures are respectively arranged at the two ends of one side close to the laser through hole.

3. The laser marker red light combiner of claim 2, wherein, The adjusting structure comprises a top screw and a tension spring, three top screws are respectively penetrated through the mounting base and abut against the three corners of the bottom surface of the lens adjusting block, and three tension springs are respectively arranged on the inner sides of the three top screws, one end of the tension spring is fixedly connected with the bottom of the lens adjusting block, and the other end of the tension spring is fixed to the bottom of the mounting base through a limiting pin.

4. The laser marker red light combiner of claim 1, wherein, A lens groove is formed in the inclined surface, and the one-way coated lens is installed in the lens groove.

5. The laser marker red light combiner of claim 4, wherein, The one-way coated lens is pressed by lock bolts arranged on the two sides of the lens groove.

6. The laser marker red light combiner of claim 1, wherein, A fixing hole communicated with the red light installation hole is formed in one side of the mounting base, and the red light generator is fixed through lock bolts arranged in the fixing hole.

7. The laser marker red light combiner of claim 1, wherein, A galvanometer installation hole, a laser installation hole and an expansion installation hole are respectively formed in the side wall of the mounting base.

8. The laser marker red light combiner of claim 1, wherein, The inclined surface is 45 degrees.

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