A new multifunctional laser engraving head

Abstract

The utility model discloses a novel multifunctional laser engraving head, including laser head upper main part and laser head lower main part, the top of laser head upper main part is provided with the inclined plane for installing reflector module, the other side of top is provided with laser hole, and the dustproof mirror subassembly is installed to the laser hole, and the middle part of laser head upper main part is provided with first focusing mirror cavity, and first focusing mirror cavity is installed with first focusing mirror module, and the side of lower position of laser head upper main part is provided with focal length observation hole, the middle part of laser head lower main part is provided with second focusing mirror cavity, and second focusing mirror cavity is installed with second focusing mirror module, first focusing mirror cavity and first focusing mirror module, second focusing mirror cavity and second focusing mirror module all adopt magnetic attraction type connection, and the lower end of laser head lower main part is installed with engraving head subassembly, and the side of engraving head subassembly is installed with sensing assembly, the utility model discloses have high work efficiency, wide use range, precision height advantage.

Description

Technical Field

[0001] This utility model relates to the field of laser engraving technology, specifically a novel multifunctional laser engraving head. Background Technology

[0002] Laser engraving technology, due to its high precision, high efficiency, and non-contact processing characteristics, is widely used in industrial manufacturing, artistic creation, and electronic processing. In laser engraving equipment, the laser engraving head, as one of the core components, directly determines the engraving quality, processing efficiency, and application range. Existing laser engraving head focusing lens modules typically use screw connections, making disassembly and assembly cumbersome when replacing them, and preventing adjustment of the distance between the focusing lens and the object during use. Furthermore, the light inlets of existing laser heads are mostly open, making them susceptible to dust or smoke contamination. The focusing lens specifications used in existing laser heads are relatively limited, restricting the application to a limited range of engraved materials. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of multifunctional laser engraving head to solve the problems mentioned in the background art, such as the cumbersome disassembly and assembly of the focusing lens module of the existing laser engraving head, the inability to adjust the distance between the focusing lens and the object, the susceptibility of the laser head to dust or smoke contamination, and the narrow range of application.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows: a novel multifunctional laser engraving head, comprising a laser head upper body and a laser head lower body. The top of the laser head upper body is provided with an inclined surface for mounting a reflector module, and a laser hole is provided on the other side of the top. A dustproof lens assembly is installed at the laser hole. A first focusing lens cavity is provided in the middle of the laser head upper body, and a first focusing lens module is installed in the first focusing lens cavity. A focal length observation hole is provided on one side of the lower position of the laser head upper body. A second focusing lens cavity is provided in the middle of the laser head lower body, and a second focusing lens module is installed in the second focusing lens cavity. The first focusing lens cavity and the first focusing lens module, and the second focusing lens cavity and the second focusing lens module are all magnetically connected. An engraving head assembly is installed at the lower end of the laser head lower body, and a sensing component is installed on one side of the engraving head assembly.

[0005] Furthermore, the reflector module includes a reflector mounting base, a reflector, and a reflector clamping plate. The reflector mounting base is fixed to the inclined surface at the top of the main body of the laser head. The reflector is installed in the hollow cavity of the reflector mounting base. The reflector clamping plate is positioned above the reflector and fixed to the reflector mounting base. Cooling air inlets and cooling air outlets are respectively provided on both sides of the reflector clamping plate.

[0006] Furthermore, the dustproof lens assembly includes a dustproof lens retaining ring, a dustproof lens, and a dustproof lens clamping plate. The dustproof lens retaining ring is fixedly connected to the laser hole. The dustproof lens is placed inside the dustproof lens retaining ring. The dustproof lens clamping plate is installed on the outside of the dustproof lens and is fixedly connected to the dustproof lens retaining ring.

[0007] Furthermore, magnets A are provided on the connection surfaces of the first focusing lens cavity and the first focusing lens module; the first focusing lens module is a single module, including a first focusing lens mounting base, a first focusing lens, and a first focusing lens retaining ring, and the first focusing lens is fixedly installed in the first focusing lens mounting base by the first focusing lens retaining ring.

[0008] Furthermore, magnets B are provided on the connection surfaces of the second focusing lens cavity and the second focusing lens module; the second focusing lens module is a dual module, including a second focusing lens mounting base, a second focusing lens, a third focusing lens, a second focusing lens retaining ring, and a third focusing lens retaining ring. The second focusing lens and the third focusing lens are respectively fixedly installed at the upper and lower ends of the second focusing lens mounting base through the second focusing lens retaining ring and the third focusing lens retaining ring.

[0009] Furthermore, the sensing component includes a sensor, a sensor protective cover, and a sensor mounting bracket. The sensor protective cover is installed on the outside of the sensor, and the sensor protective cover is mounted on the sensor mounting bracket, which is fixedly connected to the engraving head.

[0010] Furthermore, the main body of the laser head and the lower body of the laser head are connected by a plug-in sliding connection, and a height adjustment and locking mechanism is provided on one side of the lower end of the main body of the laser head.

[0011] Furthermore, the height adjustment locking mechanism includes a locking block and a locking bolt. The locking block has an opening in the middle, and the locking bolt is installed at the opening of the locking block. The locking block is fixedly connected to the main body of the laser head.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In this invention, the focusing lens module and the laser head body are connected by magnetic attraction, making disassembly and assembly convenient when cleaning or replacing the focusing lens, saving working time. The laser head has a height adjustment function, making it suitable for engraving items of different heights. A protective lens assembly is installed on the laser aperture to effectively protect the internal cavity and focusing lens from dust and smoke contamination. This invention features both single and dual focusing lens modules, as a smaller focal length results in higher precision, but a longer focal length is required for cutting thicker materials. Three different focal length focusing lenses can be interchanged according to the needs of the engraved item, suitable for engraving and cutting in various scenarios. This invention adds cooling air inlet and outlet ports to the reflector module, allowing for cooling of the reflector using gas or water when using a high-power laser, thereby achieving better light reflection.

[0014] This utility model has the advantages of high working efficiency, wide application range, and high precision. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of another aspect of the structure of this utility model;

[0017] Figure 3 This is an exploded structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the main structure of the laser head of this utility model;

[0019] Figure 5 This is a schematic diagram of the first focusing lens module of this utility model;

[0020] Figure 6 This is a schematic diagram of the second focusing lens module of this utility model.

[0021] In the diagram: 1. Main body of the laser head; 101. Inclined surface; 102. Laser aperture; 103. First focusing lens cavity; 104. Focal length observation hole; 2. Lower main body of the laser head; 201. Second focusing lens cavity; 3. Reflector module; 301. Reflector mounting base; 302. Reflector; 303. Reflector clamping plate; 304. Cooling air inlet; 305. Cooling air outlet; 4. Dustproof lens assembly; 401. Dustproof lens retaining ring; 402. Dustproof lens; 403. Dustproof lens clamping plate; 5. First focusing lens module; 501. 502. First focusing lens; 503. First focusing lens retaining ring; 6. Second focusing lens module; 601. Second focusing lens mounting base; 602. Second focusing lens; 603. Third focusing lens; 604. Second focusing lens retaining ring; 605. Third focusing lens retaining ring; 7. Engraving head assembly; 8. Sensing assembly; 801. Sensor; 802. Sensor protective cover; 803. Sensor mounting bracket; 9. Adjustment and locking mechanism; 901. Locking block; 902. Locking bolt; 10. Fixing bracket. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figure 1-6 As shown, this utility model provides a novel multifunctional laser engraving head, including a main body 1 on the laser head and a lower body 2 on the laser head. The top of the main body 1 on the laser head has a slope 101 for mounting a reflector module 3. The reflector module 3 includes a reflector mounting base 301, a reflector 302, and a reflector clamping plate 303. The reflector mounting base 301 is fixed to the slope 101 on the top of the main body 1 on the laser head. The reflector 302 is installed in the hollow cavity of the reflector mounting base 301. The reflector clamping plate 303 is positioned above the reflector 302 and fixed to the reflector mounting base 301. Furthermore, cooling air inlets 304 and cooling air outlets 305 are respectively provided on both sides of the reflector clamping plate 303. This allows for cooling of the reflector using gas or water when using a high-power laser, thereby achieving a better light reflection rate.

[0024] A laser hole 102 is provided on the other side of the top of the main body 1 of the laser head. A dustproof lens assembly 4 is installed at the laser hole 102. In this invention, the dustproof lens assembly 4 includes a dustproof lens fixing ring 401, a dustproof lens 402, and a dustproof lens pressure plate 403. The dustproof lens fixing ring 401 is threadedly fixed to the laser hole 102. The dustproof lens 402 is placed inside the dustproof lens fixing ring 401. The dustproof lens pressure plate 403 is installed on the outside of the dustproof lens 402, and the dustproof lens pressure plate 403 is threadedly fixed to the dustproof lens fixing ring 401. The protective lens assembly in this invention can effectively protect the internal cavity and focusing lens from dust and smoke pollution.

[0025] A first focusing lens cavity 103 is provided in the middle of the main body 1 of the laser head. A first focusing lens module 5 is installed in the first focusing lens cavity 103. Magnets A are provided on the connection surfaces of the first focusing lens cavity 103 and the first focusing lens module 5. The first focusing lens module 5 is a single module, including a first focusing lens mounting base 501, a first focusing lens 502, and a first focusing lens retaining ring 503. The first focusing lens is fixedly installed in the first focusing lens mounting base 501 by the first focusing lens retaining ring 503. A second focusing lens cavity 201 is provided in the middle of the lower main body 2 of the laser head. The second focusing lens module 6 is installed inside the second focusing lens cavity 201. Magnets B are provided on the connection surfaces of the second focusing lens cavity 201 and the second focusing lens module 6. The second focusing lens module 6 is a dual-module assembly, including a second focusing lens mounting base 601, a second focusing lens 602, a third focusing lens 603, a second focusing lens retaining ring 604, and a third focusing lens retaining ring 605. The second focusing lens 602 and the third focusing lens 603 are respectively fixedly mounted at the upper and lower ends of the second focusing lens mounting base 601 via the second focusing lens retaining rings 604 and 605. The first focusing lens cavity 103 and the first focusing lens module 5, and the second focusing lens cavity 201 and the second focusing lens module 6 are all magnetically connected. Magnets A and B are button-type strong magnets, which have strong magnetic attraction, high connection stability, and are convenient for disassembly and assembly when cleaning or replacing focusing lenses, saving working time. This invention features both single and dual focusing lens modules. While a smaller focal length results in higher precision, a longer focal length is required for cutting thicker materials. The three different focal length focusing lenses can be interchanged to suit various carving and cutting scenarios, depending on the needs of the object being carved.

[0026] In this invention, an engraving head assembly 7 is installed at the lower end of the laser head lower body 2. A sensing assembly 8 is installed on one side of the engraving head assembly 7. The sensing assembly 8 includes a sensor 801, a sensor protective cover 802, and a sensor fixing bracket 803. The sensor protective cover is installed on the outside of the sensor and is mounted on the sensor fixing bracket, which is fixedly connected to the engraving head. In this invention, the sensor 801 is electrically connected to the control system of the laser engraving machine, enabling automatic lifting and lowering of the engraving worktable.

[0027] In this invention, the main body 1 of the laser head and the lower body 2 of the laser head are connected by a plug-in sliding connection. A height adjustment and locking mechanism 9 is provided on one side of the lower end of the main body 1 of the laser head. The height adjustment and locking mechanism 9 includes a locking block 901 and a locking bolt 902. An opening is provided in the middle of the locking block 901, and the locking bolt 902 is installed at the opening of the locking block 901. The locking block 901 is fixedly connected to the main body 1 of the laser head. This structure allows for fine adjustment of the focal length of the focusing lens. A focal length observation hole 104 is provided on one side of the lower part of the main body 1 of the laser head for easy observation of the focal length inside the laser head.

[0028] The upper laser body 1 of this utility model is provided with a fixed bracket 10 on one side, which directly facilitates the connection and fixation of the laser head to the laser equipment; an air pump interface 202 is provided on one side of the lower laser body for connecting to an external air pump. Specific implementation examples:

[0030] In use, the laser engraving head is connected to the motion module of the laser engraving equipment via a fixed bracket 10. Then, the first focusing lens 502, the second focusing lens 602, and the third focusing lens 603 are respectively installed on the first focusing lens mounting base 501 and the second focusing lens mounting base 601. In this embodiment, the first focusing lens 502 is a 101.6mm focusing lens, the second focusing lens 602 is a 60.8mm focusing lens, and the third focusing lens 603 is a 50.8mm focusing lens. The main body 1 of the laser head and the lower body 2 of the laser head are connected by a plug-in sliding connection and are equipped with a height adjustment locking mechanism 9. This structure gives the laser engraving head a telescopic function, allowing adjustment of the distance between the focusing lens and the object to be engraved according to its size. The height can be adjusted by loosening the locking bolts and manually pushing or pulling the lower body 2 of the laser head. An air pump interface 202 on one side of the lower body 2 of the laser head is connected to an external air pump, which mainly functions as a cooling and blowing device during laser processing. In this utility model, the engraving head assembly 7 is elastically connected to the lower body 2 of the laser head, the sensor fixing bracket 803 is fixedly connected to the laser head assembly 7, and the sensor fixing bracket 803 is movably connected to the sensor protective cover 802. The sensor 801 is fixed on the sensor protective cover 802. The sensor 801 is a light sensor, and the sensor fixing bracket 803 is equivalent to a light-sensing trigger. When the working platform rises to a certain position and causes the sensor trigger to move upward, the sensor will be triggered. At this time, the sensor transmits a signal to the main board of the laser engraving machine, and the main board controls the rising command to stop working.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A new multi-functional laser engraving head comprising a laser head upper body and a laser head lower body, characterized in that: The top of the main body of the laser head has an inclined surface for mounting a reflector module, and a laser hole is provided on the other side of the top. A dustproof lens assembly is installed at the laser hole. A first focusing lens cavity is provided in the middle of the main body of the laser head, and a first focusing lens module is installed in the first focusing lens cavity. A focal length observation hole is provided on the lower side of the main body of the laser head. A second focusing lens cavity is provided in the middle of the lower body of the laser head, and a second focusing lens module is installed in the second focusing lens cavity. The first focusing lens cavity and the first focusing lens module, and the second focusing lens cavity and the second focusing lens module are all magnetically connected. An engraving head assembly is installed at the lower end of the lower body of the laser head, and a sensing component is installed on one side of the engraving head assembly.

2. A new multifunctional laser engraving head according to claim 1, characterized in that: The reflector module includes a reflector mounting base, a reflector, and a reflector clamping plate. The reflector mounting base is fixed to the inclined surface at the top of the main body of the laser head. The reflector is installed in the hollow cavity of the reflector mounting base. The reflector clamping plate is located above the reflector and is fixed to the reflector mounting base. Cooling air inlet and cooling air outlet are respectively provided on both sides of the reflector clamping plate.

3. The novel multifunctional laser engraving head according to claim 1, characterized in that: The dustproof lens assembly includes a dustproof lens retaining ring, a dustproof lens, and a dustproof lens clamping plate. The dustproof lens retaining ring is fixedly connected to the laser hole. The dustproof lens is placed inside the dustproof lens retaining ring. The dustproof lens clamping plate is installed on the outside of the dustproof lens and is fixedly connected to the dustproof lens retaining ring.

4. The novel multifunctional laser engraving head according to claim 1, characterized in that: Magnet A is provided on the connection surfaces of the first focusing lens cavity and the first focusing lens module; the first focusing lens module is a single module, including a first focusing lens mounting base, a first focusing lens, and a first focusing lens retaining ring, and the first focusing lens is fixedly installed in the first focusing lens mounting base by the first focusing lens retaining ring.

5. A novel multifunctional laser engraving head according to claim 1, characterized in that: Magnets B are provided on the connection surfaces of the second focusing lens cavity and the second focusing lens module. The second focusing lens module is a dual module, including a second focusing lens mounting base, a second focusing lens, a third focusing lens, a second focusing lens retaining ring, and a third focusing lens retaining ring. The second focusing lens and the third focusing lens are respectively fixedly installed at the upper and lower ends of the second focusing lens mounting base through the second focusing lens retaining ring and the third focusing lens retaining ring.

6. A novel multifunctional laser engraving head according to claim 1, characterized in that: The sensing assembly includes a sensor, a sensor protective cover, and a sensor mounting bracket. The sensor protective cover is installed on the outside of the sensor and mounted on the sensor mounting bracket, which is fixedly connected to the engraving head.

7. A novel multifunctional laser engraving head according to claim 1, characterized in that: The main body of the laser head is slidably connected to the lower body of the laser head by a plug-in connection, and a height adjustment and locking mechanism is provided on one side of the lower end of the main body of the laser head.

8. A novel multifunctional laser engraving head according to claim 7, characterized in that: The height adjustment locking mechanism includes a locking block and a locking bolt. The locking block has an opening in the middle, and the locking bolt is installed at the opening of the locking block. The locking block is fixedly connected to the main body of the laser head.

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