Laser engraving machine and consumable positioning device thereof

Abstract

The utility model provides a laser engraving machine and a consumable positioning device thereof, the consumable positioning device comprises a first limiting rod, a second limiting rod and two guide rods, each guide rod extends along a first direction, and the two guide rods are erected on one side of an engraving plate of the laser engraving machine and are arranged at an interval along a second direction; the first limiting rod extends in the second direction, and the two ends of the first limiting rod are each in sliding connection with one guide rod. The second limiting rod extends in the first direction and is in sliding connection with the first limiting rod in the second direction, and the first limiting rod and the second limiting rod are provided with a first limiting face and a second limiting face respectively, the second limiting face and the first limiting face make contact with the edge of the consumable so as to position the consumable. In the application, the first limiting rod and the second limiting rod can freely slide on the guide rod, so that the first limiting surface and the second limiting surface can be adjusted to any position on the bearing surface, and the adjusting flexibility of the positioning position is improved, so that the application is suitable for consumables with different sizes and shapes.

Description

Technical Field

[0001] This application relates to the technical field of laser engraving equipment, and particularly to a laser engraving machine and a consumable positioning device thereof. Background Art

[0002] Currently in the industry, whether it is an industrial-grade engraving machine or a consumer-grade engraving machine, the positioning of consumables generally relies on the preset screw holes and pressing block fixing methods on the bottom plate. Although this method is simple and direct, it has obvious limitations: the positioning position is fixed and cannot be flexibly adjusted according to the specific requirements of the engraved object. This limitation affects the use efficiency and flexibility of the engraving machine, especially when dealing with consumables of different shapes and sizes. Content of the Utility Model

[0003] This application provides a laser engraving machine and a consumable positioning device thereof that are beneficial to improving the adjustment flexibility of the positioning position.

[0004] In a first aspect, an embodiment of this application provides a consumable positioning device. The consumable positioning device includes a first limiting rod, a second limiting rod, and two guide rods. The two guide rods extend along a first direction and are spaced apart along a second direction. The two guide rods are both used to be mounted on one side of the engraving plate of the laser engraving machine; the first limiting rod extends along the second direction, and both ends of the first limiting rod are slidably connected to the two guide rods in a one-to-one correspondence. The first limiting rod has a first limiting surface perpendicular to the engraving plate; the second limiting rod extends along the first direction and is slidably connected to the first limiting rod along the second direction. The second limiting rod has a second limiting surface perpendicular to the engraving plate; wherein, the second direction is perpendicular to the first direction, the second limiting surface is perpendicular to the first limiting surface, and both the second limiting surface and the first limiting surface are in contact with the edge of the consumable to position the consumable.

[0005] According to the first aspect, in a possible implementation manner, the consumable positioning device further includes fasteners and fixing seats. The end of each guide rod is connected with a fixing seat. The number of the fasteners is the same as that of the fixing seats and the fasteners pass through the fixing seats in a one-to-one correspondence for detachably connecting with the engraving plate.

[0006] According to the first aspect, in a possible implementation manner, the fixing seat includes a first threaded hole and an avoidance hole that are coaxially communicated. The inner diameter of the avoidance hole is greater than the outer diameter of the thread of the first threaded hole; the fastener includes a non-loosening screw. The non-loosening screw includes a screwing head, a connecting section, and a threaded section that are connected in sequence; the threaded section matches the thread specification of the first threaded hole. The diameter of the connecting section is smaller than the inner diameter of the thread of the threaded section, and the length of the connecting section is greater than the length of the first threaded hole. The threaded section is used for threaded connection with the engraving plate.

[0007] According to the first aspect, in a possible implementation manner, the fixed seat further includes a mounting hole, the axis of the mounting hole is arranged along a first direction, and the end of the guide rod extends into the mounting hole; the consumable positioning device further includes a locking member for locking the guide rod and the fixed seat.

[0008] According to the first aspect, in a possible implementation manner, the fixed seat further includes a second threaded hole communicating with the mounting hole, the second threaded hole is perpendicular to the mounting hole; the locking member includes a setscrew, and the setscrew is threadedly connected to the second threaded hole to abut against the side wall of the guide rod.

[0009] According to the first aspect, in a possible implementation manner, the consumable positioning device further includes a first locking member threadedly connected to the first limiting rod, and the end of the first locking member is used for abutting against the guide rod;

[0010] And / or, the consumable positioning device further includes a second locking member for threadedly connecting with the second limiting rod, and the end of the second locking member is used for abutting against the first limiting rod.

[0011] According to the first aspect, in a possible implementation manner, the cross-sectional shape of the first limiting rod is a non-rotary body.

[0012] In the second aspect, the embodiment of the present application further provides a laser engraving machine, which includes a frame platform, an engraving plate and the consumable positioning device as described in the first aspect. The engraving plate is detachably connected to the frame platform, the engraving plate is used for placing a consumable, and the guide rod is arranged on the supporting surface of the engraving plate.

[0013] According to the second aspect, in a possible implementation manner, an installation groove is formed on the top surface of the frame platform, and the engraving plate is limited in the installation groove.

[0014] According to the second aspect, in a possible implementation manner, a through hole is formed in the bottom wall of the installation groove;

[0015] And / or, a pick-and-place opening is further formed on the frame platform, the pick-and-place opening is arranged on one side of the installation groove and communicates with the installation groove, and the depth of the pick-and-place opening is greater than the depth of the installation groove.

[0016] The laser engraving machine and its consumable positioning device provided by this application enable operators to adjust the positions of the first limiting rod and the second limiting rod on the guide rod according to the size and shape of the consumable. After determining the positions of the first limiting rod and the second limiting rod, place the consumable on the supporting surface of the engraving plate and move the consumable until the edges of the consumable are in close contact with the first limiting surface and the second limiting surface. The two limiting surfaces are perpendicular to each other and together constitute an accurate coordinate system, improving the position accuracy of the consumable on the engraving plate. The consumable positioning device in this embodiment is not only simple and fast but also highly flexible. Since the first limiting rod and the second limiting rod can slide freely on the guide rod, the first limiting surface and the second limiting surface can be adjusted to any position on the supporting surface of the engraving plate, improving the adjustment flexibility of the positioning position, thus adapting to consumables of different sizes and shapes. Through the highly flexible design, the laser engraving machine can easily handle various complex engraving tasks, improving work efficiency and the quality of finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the frame platform, engraving plate and consumable positioning device in a laser engraving machine according to an embodiment of this application;

[0019] Figure 2 is Figure 1 a disassembled schematic diagram of the structure shown;

[0020] Figure 3 is a schematic diagram of the mechanism of the consumable positioning device according to an embodiment of this application;

[0021] Figure 4 is a schematic connection structure diagram of the guide rod, fastener and fixed seat according to an embodiment of this application;

[0022] Figure 5 is a schematic diagram of the structure of the fastener according to an embodiment of this application;

[0023] Figure 6 is a schematic sectional structure diagram of the fixed seat according to an embodiment of this application.

[0024] Reference numerals:

[0025] 1000. Laser engraving machine; 100. Consumable positioning device; 10. Guide rod; 20. First limiting rod; 21. First limiting surface; 30. Second limiting rod; 31. Second limiting surface; 41. Fastener; 41a. Loose non-detachable screw; 411. Screwing head; 412. Connection section; 413. Thread section; 42. Fixed seat; 421. First threaded hole; 422. Avoidance hole; 423. Mounting hole; 424. Second threaded hole; 51. First locking member; 52. Second locking member; 200. Frame platform; 201. Installation groove; 202. Through hole; 203. Pick-up and placement opening; 300. Engraving plate; 301. Supporting surface. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0029] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0030] The present application provides a laser engraving machine, as Figure 1 and Figure 2 shown. In one embodiment, the laser engraving machine 1000 includes a frame platform 200, an engraving plate 300, and a consumable positioning device 100.

[0031] The frame platform 200 serves as the base of the entire system, and the frame platform 200 provides stable and adjustable support for the engraving plate 300 and the consumables thereon.

[0032] The frame platform 200 can be internally provided with drive mechanisms, such as motors, lead screws, etc., to adjust the height of the frame platform 200 to adapt to consumables of different thicknesses or achieve a specific engraving depth, thereby improving the engraving accuracy and efficiency. The frame platform 200 can also be a fixed plate-like structure, and the laser head of the laser engraver 100 is moved by a lifting drive member or other drive members to adapt to consumables of different thicknesses or achieve a specific engraving depth, thereby improving the engraving accuracy and efficiency.

[0033] The engraving plate 300 is used to place the consumables. The part of the engraving plate 300 that directly contacts the consumables is the supporting surface 301. The supporting surface 301 can be a flat and smooth plane, so as to keep close contact with the consumables. The supporting surface 301 can also be formed by dot-shaped protrusions or tooth-shaped structures arranged in a certain direction, so as to reduce the contact area with the consumables and facilitate laser cutting. When the supporting surface 301 is formed by dot-shaped protrusions, it should be ensured that the protruding heights of the protrusions are consistent, that is, the highest points of the protrusions are in the same section. When the supporting surface 301 is formed by tooth-shaped structures arranged in a certain direction, the tips of the tooth-shaped structures should be coplanar. The engraving plate 300 and the frame platform 200 are detachably connected, so that it is convenient for the operator to replace different types of engraving plates 300 according to needs, or clean and maintain the engraving plate 300.

[0034] Both opposite sides of the engraving plate 300 can be set as the supporting surface 301. One side is designed as a plane, and the other side is designed as dot-shaped protrusions or tooth-shaped structures arranged in a certain direction. It is also possible to design the two supporting surfaces 301 to be the same structure. This application does not make any limitations in this regard.

[0035] The engraving plate 300 can cooperate with other structures to fix the consumables, so that the laser head can perform precise engraving operations. Laser engraving hardly generates force on the consumables. Therefore, the consumables can also be directly placed on the supporting surface 301. However, the design of the supporting surface 301 of the engraving plate 300 should consider the stability and flatness of the consumables to ensure the consistency of the engraving quality.

[0036] The consumable positioning device 100 determines the position of each placement of the consumables, so as to ensure that the same starting point can be reached each time engraving is performed, thereby improving the consistency of the engraving position. Thereby improving production efficiency and product quality, and being suitable for large-scale engraving production.

[0037] In addition, the laser engraver 1000 can also have necessary or unnecessary components such as a frame, a laser engraving head, a clamping mechanism, etc. This application does not describe them in detail.

[0038] Such as Figure 2As shown in the figure, an installation groove 201 is provided on the top surface of the frame platform 200. The installation groove 201 provides an accurate positioning and limiting space for the engraving plate 300, allowing the engraving plate 300 to be easily placed into the installation groove 201. Without a complex adjustment or alignment process, the engraving plate 300 can be firmly installed on the frame platform 200. This helps prevent the engraving plate 300 from being displaced by external forces, thus ensuring the accuracy and stability of engraving.

[0039] When it is necessary to replace different types of engraving plates 300 or clean and maintain the engraving plate 300, simply remove the engraving plate 300 from the installation groove 201. This detachable connection method makes the maintenance work more convenient and fast.

[0040] The shape and size of the installation groove 201 should match the shape and size of the engraving plate 300 to ensure that the engraving plate 300 can be tightly embedded in the installation groove 201, thereby being limited and stable within the installation groove 201. Moreover, the edge of the installation groove 201 should be smooth without sharp corners to avoid scratching the engraving plate 300 or the operator.

[0041] In addition to the limiting function of the installation groove 201 itself, other fixing methods, such as bolts, buckles, magnets, etc., can be combined to further enhance the connection strength between the engraving plate 300 and the frame platform 200. These fixing methods should be selected and designed according to actual needs and operational convenience, and the present application does not limit this.

[0042] Based on the above embodiment, a through hole 202 is provided on the bottom wall of the installation groove 201; during the laser engraving process, the engraving plate 300 and the consumables may generate a certain amount of heat due to the irradiation of the laser. The through hole 202 on the bottom wall of the installation groove 201 can serve as a heat dissipation channel to help discharge the heat in a timely manner, maintain the temperature stability of the engraving area, and prevent overheating from having an adverse impact on the engraving quality or the equipment itself. At the same time, by providing the through hole 202 on the bottom wall, the weight of the frame platform 200 can be appropriately reduced while ensuring the structural strength. This helps reduce the overall weight of the frame platform 200, facilitating handling and installation, and also reducing the load on the drive mechanism (such as motors, lead screws), improving the operating efficiency and lifespan of the equipment.

[0043] The shape, position, and distribution pattern of the through hole 202 can be adjusted according to actual needs. The cross-section of the through hole 202 is smaller than the cross-section of the installation groove 201, thus naturally forming a complete ring of step surfaces on the bottom wall of the installation groove 201. When the engraving plate 300 is placed in the installation groove 201, the engraving plate 300 will be stably supported on this ring of step surfaces, achieving accurate positioning and stable support. This support method can improve the stability of the engraving plate 300 during the engraving process.

[0044] The rack platform 200 is also provided with a pick-and-place opening 203. The pick-and-place opening 203 is arranged on one side of the installation groove 201 and communicates with the installation groove 201. The depth of the pick-and-place opening 203 is greater than the depth of the installation groove 201. The pick-and-place opening 203 provides a certain operating space for the operator to pick and place the engraving plate 300, so that the operator can directly place or remove the engraving plate 300 into or out of the installation groove 201 from the side without moving or flipping the entire rack platform 200. Thereby simplifying the operation process and improving work efficiency.

[0045] The depth of the pick-and-place opening 203 is greater than the depth of the installation groove 201, so that the pick-and-place opening 203 forms a groove on the stepped surface and can extend to communicate with the through hole 202, so that there is a certain gap between a part of the engraving plate 300 and the bottom wall of the pick-and-place opening 203, which is convenient for the operator to operate the engraving plate 300 from the pick-and-place opening 203, helps to reduce friction and resistance during picking and placing, and makes the picking and placing process smoother.

[0046] The cross-sectional shape of the pick-and-place opening 203 can be set to regular or irregular shapes such as semicircular, fan-shaped, polygonal, etc. The present application does not limit this.

[0047] Please refer to Figure 2 and Figure 3 In an embodiment, the consumable positioning device 100 includes a first limiting rod 20, a second limiting rod 30 and two guide rods 10. The two guide rods 10 extend along a first direction and are arranged at intervals along a second direction. The two guide rods 10 are both used for being mounted on the engraving plate 300 of the laser engraving machine 1000. The first limiting rod 20 extends along the second direction, and both ends of the first limiting rod 20 are slidably connected to the two guide rods 10 one by one along the first direction. The first limiting rod 20 has a first limiting surface 21 perpendicular to the engraving plate 300. The second limiting rod 30 extends along the first direction and is slidably connected to the first limiting rod 20 along the second direction. The second limiting rod 30 has a second limiting surface 31 perpendicular to the engraving plate 300. Wherein, the second direction is perpendicular to the first direction, the second limiting surface 31 and the first limiting surface 21 are perpendicular to each other, and both the second limiting surface 31 and the first limiting surface 21 are in contact with the edge of the consumable to position the consumable.

[0048] In this embodiment, the first direction is the front-back direction, and the second direction is the left-right direction. Two guide rods 10 are stably mounted on the engraving plate 300 in the front-back direction, providing a solid foundation for the entire positioning device. The guide rods 10 not only bear the weight of the entire consumable positioning device 100, but also serve as the tracks for the sliding of the first limiting rod 20, guiding the sliding of the first limiting rod 20. The first limiting rod 20 extends in the left-right direction and is connected to the two guide rods 10 through a sliding connection. The first limiting surface 21 on the first limiting rod 20 is perpendicular to the engraving plate 300. When it comes into contact with one side edge of the consumable, it can effectively limit the movement of the consumable in the front-back direction. By adjusting the position of the first limiting rod 20 on the guide rods 10, the operator can easily change the longitudinal positioning of the consumable, thus meeting different engraving requirements. At the same time, in order to maintain the stability of the first limiting rod 20 after adjustment, a locking member can be provided to fix it. Similar to the first limiting rod 20, the second limiting rod 30 extends in the front-back direction and is slidably connected to the first limiting rod 20 in the left-right direction. The second limiting surface 31 of the second limiting rod 30 is also perpendicular to the engraving plate 300 and comes into contact with the other side edge of the consumable to limit the movement of the consumable in the left-right direction. By adjusting the relative position of the second limiting rod 30 and the first limiting rod 20, the operator can flexibly change the lateral positioning of the consumable, achieving a more precise engraving operation. The second limiting rod 30 can also be equipped with a locking member to ensure the stability of its position.

[0049] During the overall adjustment process, the operator first adjusts the positions of the first limiting rod 20 and the second limiting rod 30 on the guide rods 10 according to the size and shape of the consumable by sliding them. After determining the positions of the first limiting rod 20 and the second limiting rod 30, place the consumable on the supporting surface 301 of the engraving plate 300 and move the consumable until the consumable edge is in close contact with the first limiting surface 21 and the second limiting surface 31. The two limiting surfaces are perpendicular to each other and jointly form an accurate coordinate system, improving the position accuracy of the consumable on the engraving plate 300. The consumable positioning device 100 in this embodiment is not only simple and fast, but also highly flexible. Since the first limiting rod 20 and the second limiting rod 30 can slide freely on the guide rods 10, the first limiting surface 21 and the second limiting surface 31 can be adjusted to any position on the supporting surface 301 of the engraving plate 300, improving the adjustment flexibility of the positioning position, so as to adapt to consumables of different sizes and shapes. Through the highly flexible design, the laser engraving machine 1000 can easily handle various complex engraving tasks, improving the work efficiency and the quality of the finished product.

[0050] The consumable positioning device 100 further includes fasteners 41 and fixing bases 42. Fixing bases 42 are connected to the ends of each guide rod 10. The number of fasteners 41 is the same as that of fixing bases 42, and they pass through the fixing bases 42 one by one for detachably connecting with the engraving plate 300. The cooperation of the fasteners 41 and the fixing bases 42 realizes a firm and detachable connection with the engraving plate 300. Specifically, a fixing base 42 is connected to the end of each guide rod 10. The fixing base 42 not only provides support for the guide rod 10 but also serves as an interface for connecting with the engraving plate 300.

[0051] The number of fasteners 41 corresponds to that of the fixing bases 42 one by one. The fasteners 41 pass through the corresponding fixing bases 42 and are firmly fixed on the engraving plate 300. When the operator does not use the consumable positioning device 100, the consumable positioning device 100 can be separated from the engraving plate 300 by removing the fasteners 41, which is convenient for storage or transportation. When the consumable positioning device 100 needs to be used, the fasteners 41 only need to be reinstalled on the fixing bases 42 and tightened to achieve a quick and firm connection.

[0052] Please refer to Figure 5 and Figure 6 , the fixing base 42 includes a first threaded hole 421 and an avoidance hole 422 that are coaxially connected. The inner diameter of the avoidance hole 422 is larger than the outer diameter of the thread of the first threaded hole 421; the fastener 41 includes a non-loosening screw 41a. The non-loosening screw 41a includes a screwing head 411, a connecting section 412, and a threaded section 413 that are connected in sequence. The threaded section 413 matches the thread specification of the first threaded hole 421. By rotating the screwing head 411, the threaded section 413 can be driven until the threaded section 413 disengages from the first threaded hole 421 and extends into the avoidance hole 422. Since the diameter of the connecting section 412 is smaller than the inner diameter of the thread of the threaded section 413, the connecting section 412 can freely move through the first threaded hole 421; the length of the connecting section 412 is greater than the length of the first threaded hole 421. The screwing head 411 can be continuously rotated to drive the threaded section 413 until the threaded section 413 is threadedly connected to the engraving plate 300 and the screwing head 411 presses against the fixing base 42 to complete the installation.

[0053] When disassembling, by rotating the screwing head 411 in the reverse direction, the threaded section 413 can be disengaged from the engraving plate 300. Since the thread specifications of the threaded section 413 and the first threaded hole 421 match each other, the threaded section 413 can be separated from the fixing seat 42 and the non-loosening screw 41a only when the threaded section 413 is aligned with the first threaded hole 421 and a rotating operation is performed. And since the diameter of the connecting section 412 is smaller than the inner diameter of the thread of the threaded section 413, without fine operation, usually due to the offset of the connecting section 412, the threaded section 413 and the first threaded hole 421 cannot be aligned, so that the fixing seat 42 and the non-loosening screw 41a form an integral body that can move relative to each other but cannot be separated. That is to say, the consumable positioning device 100 detached from the engraving plate 300 can be carried, transported and stored as a whole.

[0054] For convenient operation, textures such as anti-slip patterns, grid patterns or concave-convex patterns can be added to the side of the screwing head 411, which can greatly increase the friction during operation. A special operation handle can be designed for the screwing head 411 to further improve the convenience and comfort of operation. One or more head grooves, such as a slotted head, a cross head or an internal hexagonal socket, can also be opened at the top of the screwing head 411, so as to conveniently use corresponding tools, such as a screwdriver, a wrench, etc. for screwing operation. The present application does not make any limitation in this regard.

[0055] In one embodiment, the fixing seat 42 further includes a mounting hole 423, the axis of the mounting hole 423 is arranged along the first direction, and the end of the guide rod 10 extends into the mounting hole 423 to realize the preliminary connection between the guide rod 10 and the fixing seat 42. The consumable positioning device 100 further includes a locking member (not labeled), and the locking member can lock the connection between the guide rod 10 and the fixing seat 42 to prevent the guide rod 10 from loosening or displacing during use, providing a reliable basis for the support and sliding of the first limiting rod 20.

[0056] In some examples of the above embodiments, the locking member can be a set screw. A set screw is a commonly used fastening element, and an axial thrust can be generated by rotating the set screw. In this example, the fixing seat 42 further includes a mounting hole 423 and a second threaded hole 424 communicating with the mounting hole 423. The mounting hole 423 is used to accommodate the end of the guide rod 10, and the second threaded hole 424 is perpendicular to the mounting hole 423. When the set screw is threadedly connected to the second threaded hole 424 and gradually tightened, the end of the set screw will tightly abut against the side wall of the guide rod 10 extending into the mounting hole 423. This direct contact and pressure firmly lock the guide rod 10 in the mounting hole 423, effectively preventing the loosening or displacement of the guide rod 10 that may occur during use.

[0057] In addition, due to the self-locking property of the screw connection between the setscrew and the second threaded hole 424, once the setscrew is tightened to an appropriate degree, the setscrew will remain in this position and will not loosen due to external vibration or impact. This improves the connection stability between the guide rod 10 and the fixed seat 42, ensuring the continuity and reliability of the positioning accuracy.

[0058] If the opening of the second threaded hole 424 on the fixed seat 42 is at the bottom of the fixed seat 42, the tightened setscrew cannot protrude from the fixed seat 42, avoiding unnecessary interference between the setscrew and the engraving plate 300 or other components.

[0059] After the setscrew completes the locking of the guide rod 10 and the fixed seat 42, there is a certain space between the end of the setscrew and the bottom surface of the fixed seat 42. This space can be filled with an elastic medium. The choice of the elastic medium can be determined according to specific application scenarios and performance requirements, such as rubber pads, silicone pads or springs, etc. These elastic media not only have good compressibility and resilience, but also can effectively isolate vibration and impact, further protecting the locking structure. When locking the fixed seat 42 and the engraving plate 300, the elastic medium will be compressed, thus better pressing against the setscrew. This compression effect not only enhances the locking force between the setscrew and the guide rod 10, but also makes the entire locking structure more stable and reliable.

[0060] It can be understood that the opening of the second threaded hole 424 can also be on other sides of the fixed seat 42, and this application does not make any limitations in this regard.

[0061] In other examples, the locking member can also use a buckle, a bolt, etc. to achieve the locking between the guide rod 10 and the fixed seat 42, or limit the relative rotation between the guide rod 10 and the fixed seat 42 through a spline. The specific form and operation method of the locking member can be customized according to actual needs and design preferences, and this application does not make any limitations in this regard.

[0062] Please refer to again Figure 1 and Figure 3 , the consumable positioning device 100 further includes a first locking member 51. The first locking member 51 is threadedly connected to the first limiting rod 20, and the end of the first locking member 51 is used to press against the guide rod 10. By being threadedly connected to the first limiting rod 20, the first locking member 51 allows the operator to adjust the position of the first locking member 51 on the first limiting rod 20 by rotation. When the first locking member 51 is tightened, the end of the first locking member 51 will tightly press against the guide rod 10, thus effectively preventing the loosening or displacement of the first limiting rod 20 during operation.

[0063] The consumable positioning device 100 further includes a second locking member 52. The second locking member 52 is used for threaded connection with the second limiting rod 30, and the end of the second locking member 52 is used to abut against the first limiting rod 20. The second locking member 52 is used for threaded connection with the second limiting rod 30, and the working principle of the second locking member 52 is similar to that of the first locking member 51. The operator adjusts the position of the second locking member 52 on the second limiting rod 30 by rotation. When the second locking member 52 is tightened, the end of the second locking member 52 will tightly abut against the first limiting rod 20, thereby effectively preventing the second limiting rod 30 from loosening or displacing during operation.

[0064] The first locking member 51 and the second locking member 52 cooperate with each other in the consumable positioning device 100 to jointly ensure the stability and reliability of the device. The first locking member 51 directly locks the guide rod 10 to prevent the first limiting rod 20 from loosening or displacing from the guide rod 10; while the second locking member 52 enhances the stability of the entire locking system by abutting against the first limiting rod 20. This design enables the consumable positioning device 100 to maintain high precision and stability under various working conditions, thus meeting various application requirements.

[0065] The first locking member 51 and the second locking member 52 can be selected from threaded locking members, elastic locking members, lever locking members, pneumatic locking members or hydraulic locking members. The above-mentioned types of locking members are all standard parts, and standard parts can also be processed according to the connection method to adjust the installation structure of the standard parts, or the installation structure can be redesigned based on the structure of the standard parts. This application does not describe this in detail.

[0066] The cross-sectional shape of the first limiting rod 20 is a non-rotary body. The cross-sectional shape of the non-rotary body may have a larger contact area or a more complex geometric structure, which helps to increase the contact stability between the limiting rod and the locking member and prevent loosening or slipping during operation.

[0067] The cross-sectional shape of the first limiting rod 20 can be a regular or irregular shape such as an ellipse, a triangle, a rectangle, a polygon, an L shape, a U shape, an I shape, etc. This application does not limit this.

[0068] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0069] The above-disclosed is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A consumable positioning device, characterized in that, The consumable positioning device includes: Two guide rods, which extend along a first direction and are spaced apart along a second direction. Both of the two guide rods are used to be mounted on one side of the engraving plate of the laser engraving machine; A first limiting rod, which extends along the second direction. Two ends of the first limiting rod are slidably connected to the two guide rods in a one-to-one correspondence. The first limiting rod has a first limiting surface perpendicular to the engraving plate; A second limiting rod, which extends along the first direction and is slidably connected to the first limiting rod along the second direction. The second limiting rod has a second limiting surface perpendicular to the engraving plate; Wherein, the second direction is perpendicular to the first direction, the second limiting surface is perpendicular to the first limiting surface, and both the second limiting surface and the first limiting surface are in contact with the edge of the consumable to position the consumable.

2. The consumable positioning device according to claim 1, characterized in that, The consumable positioning device further includes fasteners and fixing seats. The end of each guide rod is connected with the fixing seat. The number of the fasteners is the same as that of the fixing seats and the fasteners pass through the fixing seats in a one-to-one correspondence for detachably connecting with the engraving plate.

3. The consumable positioning device according to claim 2, wherein The fixing seat includes a first threaded hole and an avoidance hole that are coaxially communicated. The inner diameter of the avoidance hole is larger than the outer diameter of the thread of the first threaded hole; The fastener includes a non-loosening screw. The non-loosening screw includes a screwing head, a connecting section and a threaded section that are connected in sequence. The threaded section matches the thread specification of the first threaded hole. The diameter of the connecting section is smaller than the inner diameter of the thread of the threaded section. The length of the connecting section is greater than the length of the first threaded hole. The threaded section is used for threaded connection with the engraving plate.

4. The consumable positioning device according to claim 3, wherein, The fixing seat further includes a mounting hole. The axis of the mounting hole is arranged along the first direction. The end of the guide rod extends into the mounting hole; The consumable positioning device further includes a locking member, which is used for locking the guide rod and the fixing seat.

5. The consumable positioning device according to claim 4, wherein, The fixing seat further includes a second threaded hole communicated with the mounting hole. The second threaded hole is perpendicular to the mounting hole; The locking member includes a set screw. The set screw is threadedly connected with the second threaded hole to abut against the side wall of the guide rod.

6. The consumable positioning device according to any one of claims 1 to 5, characterized in that, The consumable positioning device further includes a first locking member, which is threadedly connected with the first limiting rod. The end of the first locking member is used for abutting against the guide rod; And / or, the consumable positioning device further includes a second locking member, which is used for being threadedly connected with the second limiting rod. The end of the second locking member is used for abutting against the first limiting rod.

7. The consumable positioning device according to any one of claims 1 to 5, characterized in that, The cross-sectional shape of the first limiting rod is a non-rotary body.

8. A laser engraving machine, characterized in that, The laser engraving machine includes a frame platform, an engraving plate and the consumable positioning device according to any one of claims 1 to 7. The engraving plate is detachably connected with the frame platform. The engraving plate is used for placing the consumable. The guide rod is mounted on the supporting surface of the engraving plate.

9. The laser engraving machine according to claim 8, characterized in that, An installation groove is formed on the top surface of the frame platform. The engraving plate is limited in the installation groove.

10. The laser engraving machine according to claim 9, characterized in that, Through holes are formed on the bottom wall of the installation groove; And / or, a pick-and-place opening is further formed in the frame platform. The pick-and-place opening is arranged on one side of the installation groove and communicated with the installation groove, and the depth of the pick-and-place opening is greater than the groove depth of the installation groove.

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