Two-dimensional laser marking galvanometer motor assembly

Abstract

The utility model provides a two-dimensional laser marking galvanometer motor assembly which comprises an X-axis motor assembly and a Y-axis motor assembly which are installed and arranged in a galvanometer lens installation shell in a mutually crossed mode. An X-axis driving control board and a Y-axis driving control board which are used for controlling the X-axis motor assembly and the Y-axis motor assembly are further installed in the vibration lens installation shell, and the X-axis motor assembly and the Y-axis motor assembly are each composed of a motor body assembly, a rotating shaft assembly and a position feedback device. And the vibrating lenses are fixedly mounted at the output ends of the X-axis motor assembly and the Y-axis motor assembly respectively. The small static marking two-dimensional galvanometer motor has the advantages of small size, light weight, fast response speed, high position precision and the like; the device is suitable for various small static marking devices.

Description

Technical Field

[0001] This utility model relates to the field of laser marking machine structure technology, and in particular to a two-dimensional laser marking galvanometer motor assembly. Background Technology

[0002] In laser marking and engraving applications, the galvanometer motor is a core component, and its performance directly affects marking accuracy and efficiency. Traditional motor structures are bulky and difficult to adapt to the needs of miniaturized equipment. Furthermore, slow response speed and insufficient positional accuracy make it difficult to meet the high-precision and high-speed requirements of small static marking equipment. Therefore, developing a miniaturized, high-performance two-dimensional galvanometer motor is of great significance.

[0003] There is a need for a new type of two-dimensional laser marking galvanometer motor that can solve the problems mentioned above. Utility Model Content

[0004] This utility model provides a two-dimensional laser marking galvanometer motor assembly, which solves the problems of large size and low positional accuracy of existing laser marking equipment by technically modifying the existing laser marking equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A two-dimensional laser marking galvanometer motor assembly includes an X-axis motor assembly and a Y-axis motor assembly. The X-axis motor assembly and the Y-axis motor assembly are installed crosswise inside the galvanometer head mounting housing. The galvanometer head mounting housing also houses an X-axis drive control board and a Y-axis drive control board for controlling the X-axis motor assembly and the Y-axis motor assembly. Each X-axis motor assembly and the Y-axis motor assembly consists of a motor body assembly, a rotating shaft assembly, and a position feedback device. The galvanometer head is fixedly installed at the output end of the X-axis motor assembly and the Y-axis motor assembly, respectively.

[0007] Preferably, the main motor assembly includes a motor housing, a stator assembly, and a rotor assembly. The stator assembly and the rotor assembly are installed inside the motor housing. The output end of the rotor assembly is connected to the shaft assembly. A position feedback device for real-time feedback of the rotor assembly's position information is also installed at one end of the motor housing.

[0008] Preferably, the stator assembly includes a magnetic yoke structure, a stator coil, and a coil frame. The stator coil is wound on the coil frame to form a multi-pole winding coil structure. The multi-pole winding coil structure is cast into the magnetic yoke structure with epoxy resin. The rotor assembly includes a rotor shaft and rotor magnets. The rotor shaft is rotatably mounted in the motor housing via a bearing assembly, and rotor magnets with alternating polarities are arranged at intervals on the outer surface of the rotor shaft. One end of the rotor shaft extends out of the motor housing and is connected to the shaft assembly, and a position feedback device is integrated and installed at the other end of the rotor shaft.

[0009] Preferably, the rotor shaft is made of lightweight alloy.

[0010] Preferably, the position feedback device is a high-precision grating encoder, which is electrically connected to the X-axis drive control board and the Y-axis drive control board.

[0011] Preferably, the rotating shaft assembly is further provided with a galvanometer plate fixing slot, and the galvanometer plate is installed in the galvanometer plate fixing slot.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention features an X-axis motor assembly and a Y-axis motor assembly compactly arranged within the mounting housing of the diaphragm head. Compared to the traditional dual-motor arrangement, this significantly reduces the size of the motor. By optimizing the motor structure, the motor is miniaturized, making it more suitable for use in small static marking equipment.

[0014] The rotor of this invention is made of lightweight alloy material, which can reduce rotational inertia and improve response speed.

[0015] This utility model's position feedback device uses a high-precision grating encoder to provide real-time feedback on the rotor's position information, resulting in more precise control over marking accuracy. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention installed inside the mounting housing of the scanning head;

[0017] Figure 2 This is a schematic diagram of the X-axis motor assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the Y-axis motor assembly structure of this utility model;

[0019] The reference numerals are as follows: 1. Gyroscope mounting housing; 2. X-axis motor assembly; 3. Y-axis motor assembly; 4. X-axis drive control board; 5. Y-axis drive control board; 6. Motor body assembly; 61. Motor housing; 62. Stator assembly; 63. Rotor assembly; 7. Shaft assembly; 71. Gyroscope mirror fixing slot; 8. Position feedback device; 9. Gyroscope mirror. Detailed Implementation

[0020] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1-3As shown, this utility model provides a two-dimensional laser marking galvanometer motor assembly, including an X-axis motor assembly 2 and a Y-axis motor assembly 3. The X-axis motor assembly 2 and the Y-axis motor assembly 3 are installed crosswise in the galvanometer mounting housing 1. The galvanometer mounting housing 1 also houses an X-axis drive control board 4 and a Y-axis drive control board 5 for controlling the X-axis motor assembly 2 and the Y-axis motor assembly 3. The X-axis motor assembly 2 and the Y-axis motor assembly 3 are each composed of a motor body assembly 6, a rotating shaft assembly 7, and a position feedback device 8. The galvanometer mirror 9 is fixedly installed at the output end of the X-axis motor assembly 2 and the Y-axis motor assembly 3, respectively.

[0022] Furthermore, the motor main body assembly 6 includes a motor housing 61, a stator assembly 62, and a rotor assembly 63. The stator assembly 62 and the rotor assembly 63 are installed inside the motor housing 61. The output end of the rotor assembly 63 is connected to the shaft assembly 7. A position feedback device 8 for real-time feedback of the position information of the rotor assembly 63 is also installed at one end of the motor housing 61.

[0023] Furthermore, the stator assembly 62 includes a magnetic yoke structure, stator coils, and a coil frame. The stator coils are wound on the coil frame to form a multi-pole winding coil structure. The multi-pole winding coil structure is cast into the magnetic yoke structure with epoxy resin. The rotor assembly 63 includes a rotor shaft and rotor magnets. The rotor shaft is rotatably mounted in the motor housing 61 via a bearing assembly, and rotor magnets with alternating polarities are arranged at intervals on the outer surface of the rotor shaft. One end of the rotor shaft extends out of the motor housing 61 and is connected to the shaft assembly 7, while the other end of the rotor shaft is integrated with a position feedback device 8. The stator assembly 62 has a multi-pole winding coil structure and a magnetic yoke structure, which can provide a stable magnetic field. Multiple rotor magnets with alternating polarities are attached to the rotor shaft, which interact with the stator magnets to generate torque, driving the rotor shaft to rotate in a two-dimensional plane.

[0024] Furthermore, the rotor shaft is made of lightweight alloy, which reduces rotational inertia and improves response speed.

[0025] Furthermore, the position feedback device 8 is a high-precision optical encoder, which is electrically connected to the X-axis drive control board 4 and the Y-axis drive control board 5. The high-precision optical encoder consists of an optical grating disk, a light source element, a photosensitive sensor, and a signal processing circuit. In use, the light source element emits a light beam that passes through the optical grating disk, and the photosensitive sensor receives the modulated light signal and converts it into a digital pulse signal, which is then sent to the drive control board for control. The photosensitive sensor can provide real-time feedback on the rotor's position information.

[0026] Furthermore, in order to fix the galvanometer lens 9, the rotating shaft assembly 7 is also provided with a galvanometer lens fixing slot 71, and the galvanometer lens 9 is installed on the galvanometer lens fixing slot 71.

[0027] Motor assembly includes the following steps:

[0028] S1. Motor assembly:

[0029] S101. After shaping the stator coil, place it in the long slot of the coil frame and connect it in a certain order to form a multi-pole winding coil structure.

[0030] S102. The coil frame and multi-pole winding coil structure are vacuum-cast into the magnetic yoke structure with epoxy resin to form stator assembly 62.

[0031] S103. Multiple rotor magnets with alternating polarities are attached to the rotor shaft to form rotor assembly 63;

[0032] S104. Install the grating encoder on the rotor shaft to ensure synchronous rotation with the rotor assembly 63;

[0033] S105. Install the stator assembly 62 and the rotor assembly 63 inside the motor housing 61, and achieve precise positioning through components such as bearings;

[0034] S2. Control System Design:

[0035] S201. Design a microcontroller-based control system to receive position feedback signals from a grating encoder;

[0036] S202. Adjust the magnitude and direction of the current in the stator coil according to the feedback signal to achieve precise position control.

[0037] S3, Testing and Optimization:

[0038] S301. Test the assembled motor to verify whether its performance meets the design requirements;

[0039] S302. Optimize and improve the motor structure, control system, etc. based on the test results;

[0040] S303. Conduct long-term operation tests to ensure the reliability and stability of the motor.

[0041] Working principle:

[0042] When an alternating current is applied to the stator, it interacts with the rotor's magnetic field to generate torque, driving the rotor to rotate in a two-dimensional plane. The magnitude and direction of the input current determine the deflection angle of the reflector. The X-axis motor controls the horizontal deflection, and the Y-axis motor controls the vertical deflection. The X and Y axes, working in tandem with the galvanometer, control the deflection angle of the laser beam in the two-dimensional plane, enabling functions such as marking and engraving.

[0043] A photosensitive sensor provides real-time feedback on the rotor's position, and the control system adjusts the current magnitude and direction based on the feedback signal to achieve precise position control. During static marking, the motor maintains high-precision positioning to ensure the accuracy and consistency of the marking pattern.

[0044] The small static marking two-dimensional galvanometer motor of this application has the advantages of small size, light weight, fast response speed and high position accuracy; it is suitable for various small static marking equipment, such as jewelry marking machines, electronic component marking machines, etc.; it can improve marking efficiency and quality, and reduce production costs and labor costs.

[0045] This utility model compactly arranges and installs an X-axis motor assembly 2 and a Y-axis motor assembly 3 inside the lens mounting housing 1. Compared with the traditional dual-motor arrangement, the volume is greatly reduced. By optimizing the motor structure, the motor is miniaturized, making it more suitable for small static marking equipment.

[0046] The rotor of this invention is made of lightweight alloy material, which can reduce rotational inertia and improve response speed.

[0047] The position feedback device 8 of this utility model adopts a high-precision grating encoder to provide real-time feedback of the rotor's position information, making the marking accuracy control more precise.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

[0049] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0050] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A two-dimensional laser marking galvanometer motor assembly, characterized in that, It includes an X-axis motor assembly and a Y-axis motor assembly, which are installed crosswise within the galvanometer head mounting housing. The galvanometer head mounting housing also houses an X-axis drive control board and a Y-axis drive control board for controlling the X-axis motor assembly and the Y-axis motor assembly. Each X-axis motor assembly and Y-axis motor assembly consists of a motor body assembly, a shaft assembly, and a position feedback device. The galvanometer head is fixedly installed at the output end of the X-axis motor assembly and the Y-axis motor assembly, respectively.

2. The two-dimensional laser marking galvanometer motor assembly according to claim 1, characterized in that, The main motor assembly includes a motor housing, a stator assembly, and a rotor assembly. The stator assembly and the rotor assembly are installed inside the motor housing. The output end of the rotor assembly is connected to the shaft assembly. A position feedback device for real-time feedback of the rotor assembly's position information is also installed at one end of the motor housing.

3. The two-dimensional laser marking galvanometer motor assembly according to claim 2, characterized in that, The stator assembly includes a magnetic yoke structure, stator coils, and a coil frame. The stator coils are wound on the coil frame to form a multi-pole winding coil structure. The multi-pole winding coil structure is cast into the magnetic yoke structure with epoxy resin. The rotor assembly includes a rotor shaft and rotor magnets. The rotor shaft is rotatably mounted in the motor housing via a bearing assembly, and rotor magnets with alternating polarities are arranged at intervals on the outer surface of the rotor shaft. One end of the rotor shaft extends out of the motor housing and is connected to the shaft assembly, and a position feedback device is integrated and installed at the other end of the rotor shaft.

4. The two-dimensional laser marking galvanometer motor assembly according to claim 3, characterized in that, The rotor shaft is made of lightweight alloy.

5. The two-dimensional laser marking galvanometer motor assembly according to claim 3, characterized in that, The position feedback device is a high-precision grating encoder, which is electrically connected to the X-axis drive control board and the Y-axis drive control board.

6. The two-dimensional laser marking galvanometer motor assembly according to claim 1, characterized in that, The rotating shaft assembly is also provided with a galvanometer plate fixing slot, and the galvanometer plate is installed in the galvanometer plate fixing slot.

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