Simple galvanometer adjustment device for laser processing equipment

Abstract

This utility model relates to a simple galvanometer adjustment device suitable for laser processing equipment. It includes a connecting plate with a Z-axis adjustment device mounted on it. A reference mounting plate is mounted on the Z-axis adjustment device, and a main galvanometer connecting plate is also mounted on the reference mounting plate. The main galvanometer connecting plate faces the main mating surface of the reference mounting plate and has four arc-shaped elongated holes. A secondary galvanometer connecting plate, also with four arc-shaped elongated holes, is connected to the main galvanometer connecting plate, allowing the secondary galvanometer connecting plate to be adjusted for pitch angle on the main galvanometer connecting plate. A galvanometer device is mounted on the secondary galvanometer connecting plate, and a field lens is mounted on the galvanometer device. Thus, through the perpendicular contact surface design between the main galvanometer connecting plate and the reference mounting plate, and between the secondary galvanometer connecting plate and the main galvanometer connecting plate, combined with the arc-shaped elongated holes, independent adjustment of left-right yaw and pitch angles can be achieved. This allows for precise perpendicularity of the galvanometer device and the field lens to the virtual reference plane, effectively improving the precision of laser processing.

Description

Technical Field

[0001] This utility model relates to an adjustment device, and more particularly to a simple galvanometer adjustment device suitable for laser processing equipment. Background Technology

[0002] In laser processing equipment, the accuracy and ease of use of the galvanometer adjustment device directly affect the processing quality. To achieve proper adjustment, a virtual reference plane is used for calibration. However, due to assembly tolerances, the galvanometer and field mirror actually installed on the equipment are often not perpendicular to the virtual reference plane. In existing technologies, some patents attempt to achieve multi-directional adjustment of the galvanometer through mechanical structures to facilitate perpendicularity to the virtual reference plane. For example, Chinese patent CN216966626U proposes a galvanometer processing device that adjusts the vertical position through a fine-tuning component, but it does not address multi-dimensional adjustment of the planar angle and cannot solve the core problem of laser beam perpendicularity calibration.

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a simple galvanometer adjustment device suitable for laser processing equipment, so as to make it more industrially valuable. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a simple galvanometer adjustment device suitable for laser processing equipment.

[0005] This utility model discloses a simple galvanometer adjustment device suitable for laser processing equipment, comprising a connecting plate, on which a Z-axis adjustment device is mounted. A reference mounting plate is mounted on the Z-axis adjustment device, and a main galvanometer connecting plate is also mounted on the reference mounting plate. The main galvanometer connecting plate has four arc-shaped elongated holes on its main mating surface facing the reference mounting plate. Adjusting screws are connected to these arc-shaped elongated holes to allow the main galvanometer connecting plate to be adjusted left and right on the reference mounting plate. A secondary galvanometer connecting plate is also connected to the main galvanometer connecting plate. The main galvanometer connecting plate has four arc-shaped elongated holes on its secondary mating surface facing the secondary galvanometer connecting plate. Adjusting screws are connected to these arc-shaped elongated holes to allow the secondary galvanometer connecting plate to be adjusted for pitch angle on the main galvanometer connecting plate. A galvanometer device is mounted on the secondary galvanometer connecting plate, and a field lens is mounted on the galvanometer device.

[0006] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the Z-axis adjustment device includes a pair of guide rails mounted on a connecting plate, a slider movably mounted on the guide rails, and the connecting plate connected to the slider; a Z-axis drive motor is also mounted on the connecting plate, a lead screw is mounted on the Z-axis drive motor, and the lead screw is threadedly connected to a threaded guide block at the bottom of the reference mounting plate.

[0007] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the contact surfaces of the main galvanometer connecting plate and the reference mounting plate are perpendicular to each other as are the contact surfaces of the auxiliary galvanometer connecting plate and the main galvanometer connecting plate.

[0008] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the central axis of the incident optical path of the galvanometer device is coaxially distributed with the virtual laser beam preset by the field lens.

[0009] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the central axis of the field mirror is perpendicular to the virtual reference plane.

[0010] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the main galvanometer connecting plate and the reference mounting plate are pre-positioned by positioning pins or limiting posts; the auxiliary galvanometer connecting plate and the main galvanometer connecting plate are also pre-positioned by positioning pins or limiting posts.

[0011] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, an elastic buffer layer or damping pad is provided between the main galvanometer connecting plate and the reference mounting plate, and between the secondary galvanometer connecting plate and the main galvanometer connecting plate.

[0012] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the field mirror is mounted on the galvanometer device via a quick-release structure or a threaded connection.

[0013] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the four arc-shaped elongated holes are distributed in pairs in a mirror image.

[0014] Furthermore, in the aforementioned simple galvanometer adjustment device suitable for laser processing equipment, the main galvanometer connecting plate is provided with laser guide holes.

[0015] By means of the above solution, this utility model has at least the following advantages:

[0016] 1. High adjustment precision and comprehensive dimensions: Through the vertical contact surface design of the main galvanometer connecting plate and the reference mounting plate, and the secondary galvanometer connecting plate and the main galvanometer connecting plate, combined with the arc-shaped long waist hole, independent adjustment of left and right tilt and pitch angles can be achieved. This can accurately keep the galvanometer device and field lens perpendicular to the virtual reference plane, effectively improving the laser processing precision.

[0017] 2. The Z-axis adjustment is smooth and highly adaptable. With the help of the guide rail, slider and lead screw cooperation structure, the relevant components can be moved smoothly along the Z-axis under the action of the Z-axis drive motor. It can flexibly adapt to the processing materials of different thicknesses and meet the diverse processing needs.

[0018] 3. The structure is optimized and easy to maintain. The field lens adopts a quick-release structure or threaded connection for installation, which facilitates quick replacement and maintenance, reduces the impact of vibration during equipment operation, and improves structural stability.

[0019] 4. The overall structure is simple and easy to operate. Angle adjustment is achieved by adjusting the screw and the arc-shaped elongated hole. The steps are clear and easy to understand. Verticality calibration can be completed without complicated operations. It is suitable for various equipment that require high-precision laser processing and has a wide range of applications.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a simple galvanometer adjustment device suitable for laser processing equipment.

[0022] Figure 2 This is a schematic diagram showing the combination of the reference mounting plate, the main galvanometer connecting plate, and the auxiliary galvanometer connecting plate.

[0023] Figure 3 This is a schematic diagram of the installation and adjustment of the main galvanometer connecting plate.

[0024] Figure 4 This is a schematic diagram of the installation structure of the auxiliary galvanometer connecting plate.

[0025] The meanings of the labels in the figures are as follows.

[0026] 1 Connecting plate 2 Base plate

[0027] 3. Master galvanometer connecting plate; 4. Arc-shaped elongated hole.

[0028] 5 Adjusting screws 6 Submirror connecting plate

[0029] 7. Galvanometer device 8. Field mirror

[0030] 9. Guide rail 10. Slider

[0031] 11 Lead screw 12 Virtual laser beam

[0032] 13 Virtual reference plane 14 Laser inlet hole Detailed Implementation

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0034] like Figures 1 to 4 A simple galvanometer adjustment device suitable for laser processing equipment is provided. This device includes a connecting plate 1, which can be fixedly connected to the main frame of the laser processing equipment via bolts, serving as the mounting base component of the entire adjustment structure and possessing excellent compatibility. Simultaneously, a reference mounting plate 2 is installed on the connecting plate 1 via a Z-axis adjustment device, used for displacement adjustment of the reference mounting plate 2 to accommodate processing materials of different thicknesses and adjust the actual position of the subsequently installed galvanometer device 7.

[0035] During implementation, the Z-axis adjustment device includes a pair of guide rails 9 mounted on the connecting plate 1, extending along the Z-axis direction. A slider 10 is movably mounted on the guide rail 9 and is fixedly connected to the reference mounting plate 2. Furthermore, a Z-axis drive motor is mounted on the connecting plate 1, and a lead screw 11 is mounted on the output end of the Z-axis drive motor. The lead screw 11 is threadedly connected to a threaded guide block at the bottom of the reference mounting plate 2. When the Z-axis drive motor starts, the lead screw 11 rotates, causing the threaded guide block to move axially along the lead screw 11. This, in turn, through the cooperation of the slider 10 and the guide rails 9, drives the reference mounting plate 2 and the components mounted on it to move smoothly along the Z-axis.

[0036] According to a preferred embodiment of this utility model, a main galvanometer connecting plate 3 is installed on the reference mounting plate 2. The side of the main galvanometer connecting plate 3 facing the reference mounting plate 2 is the main mating surface that fits against the reference mounting plate 2. Four arc-shaped elongated holes 4 are distributed on the main mating surface. During assembly, an adjusting screw 5 is inserted into each arc-shaped elongated hole 4, and the adjusting screw 5 is threadedly connected to the reference mounting plate 2. At the same time, the four arc-shaped elongated holes 4 are arranged in left-right pairs and mirror images. When adjustment is required, by loosening the adjusting screw 5, the main galvanometer connecting plate 3 can be tilted left and right relative to the reference mounting plate 2 around the arc-shaped trajectory of the arc-shaped elongated holes 4. After adjustment, tightening the adjusting screw 5 will fix it.

[0037] Furthermore, a secondary galvanometer connecting plate 6 is also connected to the main galvanometer connecting plate 3. The side of the main galvanometer connecting plate 3 facing the secondary galvanometer connecting plate 6 is a secondary mating surface that fits into the secondary galvanometer connecting plate 6. Similarly, to achieve effective adjustment, four arc-shaped elongated holes 4 are distributed on the secondary mating surface. Adjusting screws 5 are inserted into the arc-shaped elongated holes 4 and are threadedly connected to the secondary galvanometer connecting plate 6. Moreover, the four arc-shaped elongated holes 4 are also distributed in a mirror image pair from left to right. By loosening the adjusting screws 5, the secondary galvanometer connecting plate 6 can be tilted relative to the main galvanometer connecting plate 3 around the arc-shaped trajectory of the arc-shaped elongated holes 4. After adjustment, tightening the adjusting screws 5 will fix it in place.

[0038] It should be noted that the contact surface between the main galvanometer connecting plate 3 and the reference mounting plate 2, i.e., the plane where the main mating surface is located, is perpendicular to the contact surface between the auxiliary galvanometer connecting plate 6 and the main galvanometer connecting plate 3, i.e., the plane where the auxiliary mating surface is located. This structural design makes the directions of left and right yaw adjustment and pitch angle adjustment independent of each other, avoiding mutual interference during the adjustment process, and ensuring that the angle of the galvanometer device 7 in two vertical directions can be controlled separately through two-step adjustment.

[0039] In practical implementation, a galvanometer device 7 is mounted on the auxiliary galvanometer connecting plate 6. The galvanometer device 7 is used to change the propagation direction of the laser beam. A field lens 8 is mounted on the galvanometer device 7, which is used to focus the laser beam onto the surface of the material being processed. The field lens 8 is mounted on the galvanometer device 7 via a quick-release structure or a threaded connection. For ease of implementation, the quick-release structure can use a snap-fit ​​and slot-fit design, and the threaded connection can use a combination of external and internal threads to facilitate quick replacement or maintenance of the field lens 8.

[0040] The central axis of the incident optical path of the galvanometer device 7 is coaxially distributed with the virtual laser beam 12 preset in the field lens 8 to ensure that the laser beam can enter the field lens 8 after being reflected by the galvanometer device 7 along the preset path. Through the above-mentioned left and right tilt adjustment and pitch angle adjustment, the central axis of the field lens 8 can be made perpendicular to the virtual reference plane 13, ensuring that the laser beam is perpendicularly incident on the surface of the processed material and improving the processing accuracy. In addition, laser guide holes 14 are distributed on the main galvanometer connecting plate 3 to avoid the laser emitted by the external laser from being blocked during the guide process, and without affecting the normal use function of the main galvanometer connecting plate 3.

[0041] The working principle of this utility model is as follows: When it is necessary to adjust the perpendicularity between the galvanometer device 7 and the virtual reference plane 13, first loosen the adjusting screw 5 between the main galvanometer connecting plate 3 and the reference hanging plate 2, and adjust the left and right tilt angle of the main galvanometer connecting plate 3 through the arc-shaped elongated hole 4 on the main mating surface until the galvanometer device 7 tends to be perpendicular in the left and right directions.

[0042] Next, loosen the adjusting screws 5 between the auxiliary galvanometer connecting plate 6 and the main galvanometer connecting plate 3, and adjust the pitch angle of the auxiliary galvanometer connecting plate 6 through the arc-shaped elongated hole 4 on the auxiliary mating surface until the galvanometer device 7 tends to be vertical in the pitch direction; finally, tighten all the adjusting screws 5 to complete the fixing.

[0043] If the Z-axis height needs to be adjusted, start the Z-axis drive motor. The lead screw 11 and the threaded guide block will drive the reference mounting plate 2 and subsequent components to move along the Z-axis until the preset height is reached.

[0044] With the above structure, the present invention can realize the independent adjustment of the galvanometer device 7 in both left and right tilt and pitch directions. It has a simple structure, is easy to operate, and is suitable for various equipment that require high-precision laser processing.

[0045] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A simple galvanometer adjustment device suitable for laser processing equipment, comprising a connecting plate, wherein a Z-axis adjustment device is mounted on the connecting plate, characterized in that: A reference mounting plate is installed on the Z-axis adjustment device. A main galvanometer connecting plate is also installed on the reference mounting plate. The main galvanometer connecting plate has four arc-shaped elongated holes facing the main mating surface of the reference mounting plate. Adjusting screws are connected to the arc-shaped elongated holes to allow the main galvanometer connecting plate to be adjusted left and right on the reference mounting plate. A secondary galvanometer connecting plate is also connected to the main galvanometer connecting plate. The main galvanometer connecting plate has four arc-shaped elongated holes facing the secondary mating surface of the secondary galvanometer connecting plate. Adjusting screws are connected to the arc-shaped elongated holes to allow the secondary galvanometer connecting plate to be adjusted for pitch angle on the main galvanometer connecting plate. A galvanometer device is installed on the secondary galvanometer connecting plate, and a field lens is installed on the galvanometer device.

2. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The Z-axis adjustment device includes a pair of guide rails mounted on a connecting plate, a slider movably mounted on the guide rails, and the connecting plate connected to the slider; a Z-axis drive motor is also mounted on the connecting plate, a lead screw is mounted on the Z-axis drive motor, and the lead screw is threadedly connected to a threaded guide block at the bottom of the reference mounting plate.

3. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The contact surfaces of the main galvanometer connecting plate and the reference mounting plate are perpendicular to each other as are the contact surfaces of the auxiliary galvanometer connecting plate and the main galvanometer connecting plate.

4. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The central axis of the incident optical path of the galvanometer device is coaxially distributed with the virtual laser beam preset by the field lens.

5. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The central axis of the field lens is perpendicular to the virtual reference plane.

6. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The main galvanometer connecting plate and the reference mounting plate are pre-positioned by positioning pins or limiting posts; the auxiliary galvanometer connecting plate and the main galvanometer connecting plate are pre-positioned by positioning pins or limiting posts.

7. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: An elastic buffer layer or damping pad is provided between the main galvanometer connecting plate and the reference mounting plate, and between the auxiliary galvanometer connecting plate and the main galvanometer connecting plate.

8. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The field lens is mounted on the galvanometer device via a quick-release structure or a threaded connection.

9. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The four arc-shaped elongated waist holes are arranged in pairs and mirror images of each other.

10. The simplified galvanometer adjustment device for laser processing equipment according to claim 1, characterized in that: The main galvanometer connecting plate has laser guide holes distributed on it.

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