Laser engraver

Abstract

This utility model discloses a laser engraving machine, relating to the field of laser processing technology. The laser engraving machine includes a mounting component, an adjusting component, a locking component, and a laser. The mounting component is used to place the workpiece to be engraved and has a threaded hole extending vertically. The adjusting component includes a support portion and a connecting portion. The connecting portion has a first external thread, which mates with the lower section of the threaded hole to connect the connecting portion to the mounting component. The support portion is fixed below the connecting portion. The locking component has a second external thread, which mates with the upper section of the threaded hole to fix the locking component in the upper section of the threaded hole. The laser is mounted above the mounting component and is used to engrave the workpiece. The technical solution provided by this utility model aims to improve the engraving effect of the laser engraving machine.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a laser engraving machine. Background Technology

[0002] Laser engraving machines have developed rapidly in recent years. Among them, desktop laser engraving machines have gained an increasingly important position in the market due to their high cost performance and wide range of applications, and have gradually become a commonly used device.

[0003] When using a laser engraving machine, it is necessary to level the machine before engraving to ensure the best engraving effect. In related technologies, laser engraving machines are equipped with leveling devices. However, in the process of developing this application, the inventors discovered at least the following problem with these related technologies: even after leveling, the engraving effect remains poor. Utility Model Content

[0004] The main purpose of this invention is to propose a laser engraving machine that aims to improve the leveling engraving effect of the laser engraving machine.

[0005] To achieve the above objectives, this utility model proposes a laser engraving machine, which includes:

[0006] The mounting component is used to place the workpiece to be engraved, and the mounting component has threaded holes extending vertically.

[0007] An adjusting component, comprising a support portion and a connecting portion, wherein the connecting portion has a first external thread, the first external thread and the lower section of the threaded hole form a fit to realize the connection between the connecting portion and the mounting component, and the support portion is fixed below the connecting portion;

[0008] A locking member having a second external thread, the second external thread engaging with the upper section of the threaded hole to fix the locking member in the upper section of the threaded hole;

[0009] A laser, mounted above the mounting component, is used to engrave the workpiece to be engraved.

[0010] In one implementation,

[0011] The mounting component has multiple threaded holes, and the laser engraving machine includes multiple adjusting components and multiple locking components. The multiple threaded holes correspond one-to-one with the multiple adjusting components, and the multiple threaded holes correspond one-to-one with the multiple locking components.

[0012] In one implementation,

[0013] The upper end of the connecting part is provided with a first adjustment hole, which is used to cooperate with the first force-applying member to realize the rotation of the adjustment member.

[0014] In one implementation,

[0015] The upper end of the locking member is provided with a second adjustment hole, which is used to cooperate with the second force-applying member to realize the rotation of the locking member.

[0016] In one implementation,

[0017] The projected area of ​​the support portion on the horizontal plane is greater than the projected area of ​​the connecting portion on the horizontal plane.

[0018] In one embodiment, the laser engraving machine further includes a first focus indicator light and a second focus indicator light, which are mounted above the mounting component.

[0019] In one embodiment, the laser engraving machine further includes a mounting base fixed above the mounting component, the mounting base being detachably connected to the laser.

[0020] In one embodiment, the laser includes an isolator assembly, the isolator assembly including a lens barrel defining a cavity, the cavity containing an isolator, and at least one of a beam expander and a protective lens is disposed within the cavity.

[0021] In one embodiment, the laser engraving machine further includes a galvanometer and a field lens, and the mounting base has mounting holes for mounting the galvanometer and the field lens.

[0022] In one embodiment, the laser engraving machine further includes a dust removal component, a dust removal fan, and a filter screen. The dust removal component is fixed on the mounting component, and the dust removal component has an air inlet. The dust removal fan is located on the side of the dust removal component away from the workpiece to be engraved, and the filter screen is located at the air inlet. The filter screen is detachably located at the air inlet.

[0023] In one embodiment, the laser engraving machine further includes an oil collecting component that defines an oil collecting groove, and the oil collecting component is detachably disposed on the mounting component or the dust removal component.

[0024] In one embodiment, the laser engraving machine further includes a cover and a smoke removal component. The cover is mounted on the mounting component and has a smoke removal port. The smoke removal component has multiple smoke removal holes and is detachably mounted on the smoke removal port.

[0025] One of the above technical solutions has the following advantages or beneficial effects: In the technical solution of this utility model, a locking component is also provided above the adjusting component, which can improve the stability of the adjusting component in the threaded hole, avoid the vibration of the laser engraving machine during operation from damaging the leveling effect of the mounting component, thereby improving the engraving effect of the laser engraving machine. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a laser engraving machine in one embodiment of this utility model;

[0028] Figure 2 A schematic diagram of the structure of a laser engraving machine with its casing removed, provided in one embodiment of this utility model;

[0029] Figure 3 A schematic diagram of the structure of the mounting component in one embodiment of this utility model;

[0030] Figure 4 A schematic diagram of the structure of the adjusting member in one embodiment of this utility model;

[0031] Figure 5 A schematic diagram of the locking component in one embodiment of this utility model;

[0032] Figure 6 Another structural schematic diagram of a laser engraving machine with its casing removed, provided in one embodiment of this utility model;

[0033] Figure 7 A partially exploded structural diagram of a laser engraving machine in one embodiment of this utility model;

[0034] Figure 8 An exploded structural diagram of another part of the laser engraving machine in one embodiment of the present invention;

[0035] Figure 9 A schematic diagram of the structure of the first focus indicator light in one embodiment of this utility model;

[0036] Figure 10 An exploded view of the first focus indicator light in one embodiment of this utility model;

[0037] Figure 11A partial cross-sectional structural diagram of the laser in one embodiment of this utility model;

[0038] Figure 12 An exploded view of the isolator assembly in one embodiment of this utility model.

[0039] Explanation of icon numbers:

[0040] 100. Laser engraving machine; 101. Mounting component; 1011. Threaded hole; 1012. Limiting block; 102. Adjusting component; 1021. Support part; 1022. Connecting part; 10221. First adjusting hole; 103. Locking component; 1031. Second adjusting hole; 104. Laser; 1041. Isolator assembly; 10411. Lens barrel; 10412. Isolator; 10413. Protective lens; 1042. Pump source A; 1043. Pump source B; 1044. Pump source C; 1045. Doped fiber; 1046. Q switch; 105. First focus indicator light; 1051. Fixing base; 10511. First base body; 10512. Second base body; 052. Spherical component; 1053. Light-emitting component; 106. Second focusing indicator light; 107. Mounting base; 1071. Lifting drive component; 1072. Support plate; 10721. Air outlet; 1073. First slide rail; 1074. Mounting hole; 1075. Housing; 1076. Through hole; 1077. Heat dissipation vent; 1078. Detection hole; 108. Galvanometer; 109. Field lens; 110. Dust removal component; 1101. Air inlet; 111. Dust removal fan; 112. Oil collection component; 1121. Oil collection trough; 113. Cover; 114. Smoke removal component; 1141. Smoke removal hole; 115. Vision inspection component; 116. Shielding component; 117. Fire extinguishing component; 118. Air guide seat.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] Please refer to the reference. Figures 1 to 12 As shown, this utility model proposes a laser engraving machine 100, which includes a mounting component 101, an adjusting component 102, a locking component 103, and a laser 104. The mounting component 101 is used to place the workpiece to be engraved, and the mounting component 101 has a threaded hole 1011 extending vertically. The adjusting component 102 includes a support portion 1021 and a connecting portion 1022. The connecting portion 1022 has a first external thread, which cooperates with the lower section of the threaded hole 1011 to connect the connecting portion 1022 to the mounting component 101. The support portion 1021 is fixed below the connecting portion 1022. The locking component 103 has a second external thread, which cooperates with the upper section of the threaded hole 1011 to fix the locking component 103 in the upper section of the threaded hole 1011. The laser 104 is mounted above the mounting component 101 and is used to engrave the workpiece to be engraved.

[0046] In this embodiment, the adjusting member 102 is used to support the mounting member 101. By turning the adjusting member 102 to change the length of the adjusting member 102 extending out of the threaded hole 1011, the mounting member 101 can be leveled to ensure the processing accuracy of the laser 104 on the workpiece to be engraved placed on the mounting member 101. The adjusting member 102 is connected to the mounting member 101 through the first external thread of the connecting part 1022 and the threaded hole 1011 of the mounting member 101. In order to ensure the stability of the position of the adjusting member 102 in the threaded hole 1011 after leveling, the locking member 103 is engaged with the upper section of the threaded hole 1011 through the second external thread. The locking member 103 can provide support for the adjusting member 102 from above, avoiding excessive load on the adjusting member 102, which would cause the adjusting member 102 to move within the threaded hole 1011 and affect the processing effect. When installing the adjusting member 102 and the locking member 103, the adjusting member 102 is inserted from below the threaded hole 1011, and the locking member 103 is inserted from above the threaded hole 1011. The part of the connecting member that extends into the threaded hole 1011 is the lower section of the threaded hole 1011, and the part of the locking member 103 that extends into the threaded hole 1011 is the upper section of the threaded hole 1011. The lower section and the upper section of the threaded hole 1011 together form the entire threaded hole 1011.

[0047] Specifically, during laser engraving, the workpiece to be engraved is placed on the upper side of the mounting component 101, and the laser 104 mounted above the mounting component 101 performs laser engraving on the workpiece. The mounting component 101 is placed on the platform via an adjusting component 102. The adjusting component 102 is threadedly engaged with the threaded hole 1011 on the mounting component 101 via the first external thread of the connecting part 1022, and is fixed to the support part 1021 below the connecting part 1022, which contacts the platform. Before laser engraving, the upper surface of the mounting component 101, that is, the surface on which the mounting component 101 supports the workpiece, needs to be leveled to ensure the processing accuracy of laser engraving on the workpiece. During the leveling process, the upper surface of the mounting part 101 can be referenced with a spirit level. By turning the adjusting part 102, the length of the connecting part 1022 extending out of the threaded hole 1011 can be changed, thereby adjusting the distance between the support part 1021 fixed below the connecting part 1022 and the mounting part 101, and changing the angle between the mounting part 101 and the platform, so as to adjust the upper surface of the mounting part 101 to be horizontal. It is understood that when the connecting part 1022 is adjusted between its extreme positions of extending into and out of the threaded hole 1011, the threaded hole 1011 leaves a certain length above the connecting part 1022 to allow for the movement of the connecting part 1022. Since the connection between the mounting part 101 and the adjusting part 102 relies on the engagement between the first external thread of the connecting part 1022 and the thread of the threaded hole 1011 to achieve fixation, in order to avoid the connecting part 1022 moving or loosening along the threaded hole 1011 due to factors such as the heavy load on the mounting part 101 or the vibration of the laser engraving machine 100, which would affect the laser engraving effect on the workpiece, a locking part 103 is also provided above the adjusting part 102. The locking part 103 is threadedly engaged with the threaded hole 1011 through the second external thread. After the mounting component 101 is leveled in place, the locking component 103 is screwed to the abutting position of the adjusting component 102. That is, the locking component 103 fills the reserved length of the threaded hole 1011 on the upper side of the connecting part 1022, forming a support for the adjusting component 102. The engagement of the second external thread with the thread in the threaded hole 1011 shares the engagement load of the first external thread with the thread in the threaded hole 1011, thereby improving the stability of the position of the adjusting component 102 in the threaded hole 1011 and effectively ensuring the stability of the mounting component 101 in bearing the workpiece.

[0048] Optionally, a water-retaining structure can be provided on the mounting component 101, allowing the mounting component 101 to be leveled according to the horizontal plane in the water-retaining structure. This provides users with convenient leveling options.

[0049] Optionally, the mounting component 101 has a placement surface on its upper part for placing the workpiece to be engraved. A limiting block 1012 is provided on the placement surface. The limiting block 1012 is detachably connected to the mounting component 101. When placing the workpiece, the limiting block 1012 abuts against and limits the workpiece to be processed, so that the laser engraving machine 100 can fix the position of the workpiece to be processed and avoid the workpiece from shaking during processing, which would affect the processing accuracy of the laser engraving machine 100. The limiting block 1012 can be L-shaped and have a cylindrical hole at the corner to prevent interference between the workpiece with right angles and the corner of the limiting block 1012 when positioning, thus avoiding affecting the positioning accuracy.

[0050] In embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the mounting component 101 has multiple threaded holes 1011, and the laser engraving machine 100 includes multiple adjusting components 102 and multiple locking components 103. The multiple threaded holes 1011 correspond one-to-one with the multiple adjusting components 102, and the multiple threaded holes 1011 correspond one-to-one with the multiple locking components 103.

[0051] Understandably, leveling the mounting component 101 requires adjusting the height of at least two positions of the mounting component 101. Optionally, two sets of adjusting members 102, locking members 103, and threaded holes 1011 can be provided. The mounting component 101 can be equipped with a fixed foot pad, which, along with the two sets of adjusting members 102, provides support for the mounting component 101 and also allows for leveling. The foot pad and the two sets of adjusting members 102 are arranged in a triangle to ensure the stability of the support for the mounting component 101. Optionally, three, four, or five sets of adjusting members 102, locking members 103, and threaded holes 1011 can be provided, etc., without specific limitations.

[0052] In actual implementation, the mounting component 101 is arranged in a quadrilateral shape, and four sets of adjusting components 102, locking components 103 and threaded holes 1011 can be set accordingly. The four sets of adjustments are respectively set at the four corners of the mounting component 101.

[0053] In embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the upper end of the connecting part 1022 is provided with a first adjustment hole 10221, which is used to cooperate with the first force-applying member to realize the rotation of the adjustment member 102.

[0054] In this embodiment, the tightening of the connecting part 1022 within the threaded hole 1011 requires the assistance of a first force-applying member to reduce the possibility of the connecting part 1022 accidentally loosening within the threaded hole 1011. When tightening the adjusting member 102, the end of the first force-applying member is inserted into the first adjusting hole 10221, and then the adjusting member 102 is rotated within the threaded hole 1011 by rotating the first force-applying member. Optionally, the first adjusting hole 10221 can be in the shape of a flathead screwdriver, a cross-shaped screwdriver, a hexagon, etc., and correspondingly, the first force-applying member can be a flathead screwdriver, a cross-shaped screwdriver, a hex wrench, etc. The first adjusting hole 10221 can also be other non-circular shapes, and the cross-sectional shape of the end of the first force-applying member is consistent with the shape of the first adjusting hole 10221.

[0055] In embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the upper end of the locking member 103 is provided with a second adjustment hole 1031, which is used to cooperate with the second force-applying member to realize the rotation of the locking member 103.

[0056] In this embodiment, the tightening of the locking member 103 within the threaded hole 1011 requires the assistance of a second force-applying member to reduce the possibility of the locking member 103 accidentally loosening within the threaded hole 1011. When tightening the adjusting member 102, the end of the second force-applying member is inserted into the second adjusting hole 1031, and then the locking member 103 is rotated within the threaded hole 1011 by rotating the second force-applying member. Optionally, the second adjusting hole 1031 can be shaped like a flathead screwdriver, a cross-shaped screwdriver, a hexagon, etc., and correspondingly, the second force-applying member can be a flathead screwdriver, a cross-shaped screwdriver, a hex wrench, etc. The second adjusting hole 1031 can also be other non-circular shapes, and the cross-sectional shape of the end of the second force-applying member is consistent with the shape of the second adjusting hole 1031.

[0057] In embodiments of this utility model, such as Figure 3 As shown, the projected area of ​​the support portion 1021 on the horizontal plane is larger than the projected area of ​​the connecting portion 1022 on the horizontal plane. This increases the contact area between the adjusting member 102 and the platform, effectively improving the stability of the adjusting member 102 in supporting the mounting member 101. Optionally, the cross-sectional area of ​​the support portion 1021 gradually increases from the end closer to the connecting portion 1022 to the end farther away from the connecting portion 1022. The support portion 1021 may be shaped like a frustum or a truncated cone.

[0058] In embodiments of this utility model, such as Figure 1 and Figure 6 As shown, the laser engraving machine 100 also includes a first focus indicator light 105 and a second focus indicator light 106, which are mounted on top of the mounting component 101.

[0059] In this embodiment, since the laser emitted by the laser 104 is usually invisible light, the first focus indicator light 105 emits a first indicator light and the second focus indicator light 106 emits a second indicator light. Both the first and second indicator lights are visible light. The second indicator light is preset to intersect with the first indicator light, and the intersection of the first and second indicator lights is adjusted to the position of the laser focal point. In this way, the user can intuitively see the position of the laser focal point so that the laser focal point can be accurately placed on the processing position to obtain a better processing effect.

[0060] Understandably, laser 104 typically has built-in indicator lights. The emission path of the indicator light is the same as that of the laser. Therefore, by simply adding another indicator light outside the laser 104 that intersects with the indicator light, the focus of the laser emitted by the laser 104 can be indicated. However, since the indicator light source of the laser 104 is integrated inside the machine, if it malfunctions, the focus position cannot be determined. The entire laser 104 needs to be returned to the factory for repair or sent to an on-site technician for repair. The entire optical path must be readjusted to ensure the laser focus and indicator light coincide for automatic focusing, resulting in insufficient ease of use for the laser 104. In this embodiment, the first focus indicator light 105 and the second focus indicator light 106 are located outside the laser 104. Even if the light source of the indicator light inside the laser 104 malfunctions, the user can still determine the laser focus position by the intersection of the first indicator light emitted by the first focus indicator light 105 and the second indicator light emitted by the second focus indicator light 106. This facilitates precise processing and greatly improves the reliability of the laser engraving machine 100.

[0061] Optionally, the laser engraving machine 100 includes a housing 1075, and the laser 104, the first focus indicator light 105 and the second focus indicator light 106 are all disposed in the cavity of the housing 1075. The housing 1075 is also provided with at least two through holes 1076 communicating with the cavity. The indicator component is disposed in the cavity, and the light-emitting ends of the first focus indicator light 105 and the second focus indicator light 106 are respectively disposed in a through hole 1076.

[0062] Optionally, the housing 1075 may also be provided with a heat dissipation vent 1077 for the laser 104 to dissipate heat. A magnetic grille may be provided at the heat dissipation vent 1077 to facilitate the user to remove the grille for cleaning at regular intervals, thus preventing dust from affecting the production efficiency of the laser engraving machine 100. The housing 1075 may also be provided with an indicator light group to indicate the working status and type of the laser 104.

[0063] In embodiments of this utility model, such as Figure 6 , Figure 9 and Figure 10As shown, both the first focus indicator light 105 and the second focus indicator light 106 include a fixed base 1051, a spherical component 1052, and a light-emitting component 1053. The fixed base 1051 is connected to the housing 1075. The fixed base 1051 has a rotation space connected to the through hole 1076. The spherical component 1052 is rotatably disposed in the rotation space. The spherical component 1052 has a limiting cavity communicating with the through hole 1076. The light-emitting component 1053 is limited in the limiting cavity. The through hole 1076 is used for the indicator light emitted by the indicator light to be emitted.

[0064] In this embodiment, the spherical component 1052 can rotate in the rotation space of the fixed base 1051 to drive the light-emitting component 1053 to rotate, so as to adjust the emission paths of the first indicator light and the second indicator light to the focal point of the laser.

[0065] In actual implementation, the spherical component 1052 can be rotated according to the different focal positions of different lasers so that the indicator light can indicate lasers with different focal positions, thus meeting various usage requirements.

[0066] Understandably, the rotation space can be a spherical space, with the inner wall of the rotation space abutting against the spherical component 1052. The spherical component 1052 can rotate in any direction within the spherical space to improve the ease of adjusting the emission angle of the light-emitting component 1053. The light-emitting component 1053 can be limited within the limiting cavity by a snap-fit ​​structure or a screw structure; no specific limitation is made here.

[0067] Specifically, the spherical part 1052 is provided with a limiting cavity that extends through the spherical part 1052. The cavity opening at one end of the limiting cavity is used for the emission of indicator light, and the cavity opening at the other end of the limiting cavity is used for the electrical connection between the light-emitting part 1053 and the electrical control module outside the limiting cavity. The edge of the cavity opening at this end can be smoothly transitioned to avoid wear on the connection line of the light-emitting part 1053 when the spherical part 1052 rotates.

[0068] In embodiments of this utility model, such as Figure 9 and Figure 10 As shown, the fixed base 1051 includes a first base body 10511 and a second base body 10512. The first base body 10511 is connected to the housing 1075, and the second base body 10512 is connected to the first base body 10511 and is spaced apart from the first base body 10511. The first base body 10511 is provided with a first through hole, and the second base body 10512 is provided with a second through hole. A rotation space is formed between the first through hole and the second through hole.

[0069] In this embodiment, the first base 10511 and the second base 10512 are spaced apart. The first through hole of the first base 10511 and the second through hole of the second base 10512 are respectively sleeved on the spherical part 1052. The diameter of the first through hole and the second through hole is smaller than the diameter of the spherical part 1052, and they are respectively located on different sides of the cross section with the largest area of ​​the spherical part 1052. The spherical part 1052 can be fixed by relative pressing against it, so as to prevent the spherical part 1052 from rotating during the use of the laser engraving machine 100, which would cause the light-emitting element 1053 to move and the second indicator light to deviate, affecting the accuracy of the laser focus indication.

[0070] In actual implementation, the first base 10511 and the second base 10512 are connected by adjusting bolts. The distance between the first base 10511 and the second base 10512 is adjustable. When it is necessary to adjust the emission angle of the second indicator light, the distance between the first base 10511 and the second base 10512 can be increased to loosen the spherical part 1052. The user can adjust the emission angle of the second indicator light by rotating the spherical part 1052 so that the second indicator light accurately points to the focal point of the laser. After the second indicator light is adjusted to the correct position, the distance between the first base 10511 and the second base 10512 can be decreased to clamp and fix the spherical part 1052, thereby fixing the emission angle of the second indicator light.

[0071] Optionally, the walls of the first and second through holes can be arc-shaped to better fit the surface of the spherical component 1052 and provide a better fixing effect for the spherical component 1052. The first seat 10511 and the second seat 10512 can be arranged in parallel to make the force on the spherical component 1052 more uniform, thereby providing better stability.

[0072] In an embodiment of this utility model, the laser engraving machine 100 further includes a mounting base 107 fixed above the mounting member 101, and the mounting base 107 is detachably connected to the laser 104.

[0073] In this embodiment, as Figure 2 , Figures 6 to 8 As shown, the mounting base 107 is used for mounting the laser 104. The laser 104 is positioned on the mounting base 107, so that the laser 104 and the mounting component 101 are at a certain distance to avoid obstructing the workpiece to be engraved on the mounting component 101, so as to facilitate the laser 104 to perform laser processing on the workpiece.

[0074] Alternatively, the laser 104 and the mounting base 107 can be detachably connected by means of screws or clips.

[0075] Specifically, the mounting base 107 includes a housing 1075 and a lifting drive 1071. The housing 1075 has a cavity, in which the laser 104 is housed. The lifting drive 1071 is connected to the mounting base 101. The lifting drive 1071 is used to adjust the distance between the laser 104 and the workpiece to improve the processing accuracy of the laser 104 on the workpiece. It is understood that the laser emitted by the laser engraving machine 100 in this embodiment is emitted along the Z-axis direction. The lifting drive 1071 can adjust the position of the laser 104 in the Z-axis direction so that the laser focus accurately falls on the workpiece. It is understood that the Z-axis direction is the height direction.

[0076] In actual implementation, the mounting base 107 also includes a support plate 1072. The support plate 1072 is provided with a first slide rail 1073, which is arranged along the Z-axis. The housing 1075 can be slidably mounted on the first slide rail 1073. The lifting drive component 1071 can be a combination of a motor and a lead screw. The housing 1075 is provided with a threaded hole 1011 corresponding to the lead screw. The lead screw and the threaded hole 1011 are threadedly engaged, so the lifting drive component 1071 can drive the laser engraving machine 100 to move along the first slide rail 1073. Optionally, the support plate 1072 is provided with an upper limit photoelectric sensor and a lower limit photoelectric sensor. The housing 1075 is provided with an upper limit block 1012 and a lower limit block 1012 corresponding to the upper limit photoelectric sensor and the lower limit photoelectric sensor. In this way, the triggering cooperation of the limit block 1012 and the limit photoelectric sensor limits the movement stroke of the laser 104.

[0077] Optionally, the laser engraving machine 100 also includes a visual inspection element 115 and a blocking element 116. The visual inspection element 115 is disposed in the cavity of the housing 1075. The housing 1075 has a detection hole 1078 communicating with the cavity. The detection end of the visual inspection element 115 is disposed corresponding to the detection hole 1078. The blocking element 116 is movably disposed in the housing 1075 and is used to block the detection hole 1078. When the laser engraving machine 100 is not in use, the blocking element 116 can be used to block the detection hole 1078 to prevent dust or other impurities from falling on the visual inspection element 115 and to protect the user's privacy. When the laser engraving machine 100 is in use, the blocking element 116 is removed from the detection hole 1078.

[0078] In actual implementation, the laser engraving machine 100 can use the vision detection component 115 to determine whether the laser focus is on the processing position by checking whether the intersection of the first indicator light and the second indicator light falls on the processing position. Based on this, it controls the lifting drive component 1071 to adjust the position of the laser 104 in the Z-axis direction until the laser focus falls on the processing position, thereby achieving automatic focusing and ensuring the subsequent laser processing effect.

[0079] In embodiments of this utility model, such as Figure 11 and Figure 12As shown, the laser 104 includes an isolator assembly 1041, which includes a lens barrel 10411. The lens barrel 10411 defines a cavity, and an isolator 10412 is disposed inside the cavity. At least one of a beam expander and a protective lens 10413 is disposed inside the cavity.

[0080] In this embodiment, the isolator 10412 is based on the Faraday effect and uses a combination of a polarizer and a Faraday rotator to achieve unidirectional light transmission (forward transmittance >90%, reverse isolation >40dB) to prevent back-reflected light from damaging the pump source inside the laser 104.

[0081] In practical implementation, a beam expander or a protective lens 10413, or both, can be installed inside the lens barrel 10411. The beam expander is used to adjust the diameter of the collimated spot, and the protective lens 10413 prevents dust or impurities from falling into the lens barrel 10411. By integrating the beam expander into the isolator assembly 1041, there is no need to place a separate beam expander between the isolator 10412 and the galvanometer 108, which greatly reduces the distance between the isolator 10412 and the galvanometer 108 and does not occupy space in the mounting base 107. It is understood that the protective lens 10413 is located at the output end of the isolator assembly 1041. When the lens of the isolator assembly 1041 is contaminated, it can be reused simply by replacing the removable protective lens 10413, greatly reducing operating costs. The isolator assembly 1041 can be integrated inside the laser 104 to ensure the coaxiality of the laser and the beam expander, and eliminates the need for secondary adjustment of the beam expander during use, thereby improving the user experience.

[0082] In some embodiments, the laser 104 further includes pump sources A1042, B1043, C1044, a doped fiber 1045, and a Q-switch 1046 (giant pulse generator). Pump source A1042 provides a seed source for the oscillation stage, generating laser light through photoelectric conversion. Pump sources B1043 and C1044 amplify the pulse signal generated by the seed source. The pulse can achieve energy level transitions and rapid adjustment of the resonant cavity Q value through the high-reflection grating doped fiber 1045, the low-reflection grating, and the Q-switch 1046 to achieve high peak power pulse output. Optionally, pump sources A1042, B1043, C1044, and the Q-switch 1046 can be detachably connected to the housing of the laser 104 using screws or clips, and the doped fiber 1045 can be connected to the housing of the laser 104 by adhesive bonding. An isolator assembly 1041 penetrates the housing of the laser 104 and is used for laser output.

[0083] In embodiments of this utility model, such as Figure 1 , Figure 6 and Figure 7As shown, the laser engraving machine 100 also includes a galvanometer 108 and a field lens 109. The mounting base 107 has a mounting hole 1074, and the galvanometer 108 and the field lens 109 are mounted in the mounting hole 1074.

[0084] In this embodiment, the laser emitted by the laser 104 is emitted through the galvanometer 108 and the field lens 109, and then emitted to the workpiece through the mounting hole 1074 of the mounting base 107. The cooperation of the galvanometer 108 and the field lens 109 can adjust the position of the laser and focus the laser to achieve laser scanning processing. Optionally, the laser 104 can be a far-infrared laser 104, a blue TO-packaged laser 104, or a blue COS-packaged laser 104.

[0085] In practical implementation, the galvanometer 108 is mounted at the output end of the laser 104, and the field lens 109 is positioned at the light-emitting end of the galvanometer 108. The field lens 109 can focus the laser. The galvanometer 108 adjusts the direction of the laser beam emitted towards the field lens 109 by oscillating reflection, thereby achieving processing at different positions of the workpiece. Multiple galvanometers 108 can be set, and multiple galvanometers 108 are rotatably positioned on the laser transmission path. By rotating the galvanometer 108, the exit angle of the laser beam after passing through the galvanometer 108 is changed, thereby changing the laser emission position and achieving scanning processing. The galvanometer 108 is driven by a motor, which can control the oscillation angle and speed of the galvanometer 108, thereby achieving precise laser processing. Optionally, the galvanometer 108 can be mounted on a light guide shell, with the inlet of the light guide shell connected to the output end of the laser 104, and the field lens 109 connected to the outlet of the light guide shell; the motor is fixedly mounted on the light guide shell, and the galvanometer 108 is connected to the output end of the motor.

[0086] In embodiments of this utility model, such as Figure 1 and Figure 8 As shown, the laser engraving machine 100 also includes a dust removal component 110, a dust removal fan 111, and a filter screen. The dust removal component 110 is fixed on the mounting component 101. The dust removal component 110 has an air inlet 1101. The dust removal fan 111 is provided on the side of the dust removal component 110 away from the workpiece to be engraved. A filter screen is provided at the air inlet 1101. The filter screen is detachably provided at the air inlet 1101.

[0087] In this embodiment, the dust collector 110 can act as a shield to separate the placement of the workpiece to be engraved from the electronic components of the laser engraving machine 100, preventing the dust generated by the laser engraving machine 100 from affecting the normal operation of the electronic components. The dust collector 110 has an air inlet 1101, and the dust collector fan 111 absorbs the airflow at the engraving location of the workpiece to absorb the dust generated during engraving. A filter screen is installed at the air inlet 1101 of the dust collector 110 to filter and collect the dust, preventing dust from entering the dust collector fan 111 and causing blockage.

[0088] Understandably, the electronic components of the laser engraving machine 100 can be the lifting drive component 1071 of the laser 104 and related electronic components, etc., located on the side of the dust removal component 110 away from the workpiece to be engraved.

[0089] Optionally, an air guide duct can be provided on the dust removal component 110. The air guide duct is designed to guide the airflow to the air inlet 1101 so as to collect the smoke and dust.

[0090] Optionally, the filter screen can be magnetically attached to the dust collector 110, allowing the user to easily remove the filter grille for cleaning. The filter screen can also be attached to the dust collector 110 using screws or clips.

[0091] In one embodiment, the laser engraving machine 100 further includes a support plate 1072, which is disposed on the side of the dust removal component 110 away from the workpiece to be engraved, and together with the dust removal component 110 forms an installation cavity. Electronic components are disposed within the installation cavity to prevent them from being directly exposed and corroded. Optionally, the support plate 1072 is provided with an air outlet 10721. Optionally, the laser engraving machine 100 further includes an air guide seat 118, which is provided with an air guide channel. The dust removal fan 111 and the air guide seat 118 are disposed in the installation cavity. The air inlet of the dust removal fan 111 is connected to the air inlet 1101, and the air outlet of the dust removal fan 111 is connected to the air outlet 10721 through the air guide channel of the air guide seat 118.

[0092] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 8 The laser engraving machine 100 shown also includes an oil collection component 112, which defines an oil collection groove 1121. The oil collection component 112 is detachably mounted on the mounting component 101 or the dust removal component 110.

[0093] In this embodiment, as the laser engraving machine 100 is used for longer periods, the oil fumes generated during processing will adhere to the dust collector 110. The oil collection component 112 located on the mounting component 101 or the dust collector 110 is used to collect the oil fumes falling from the dust collector 110, so as to prevent the oil fumes from dripping directly onto the mounting component 101 and causing pollution.

[0094] In practice, the oil collection component 112 can be magnetically connected to the mounting component 101 or the dust removal component 110, so that the user can easily remove the oil collection component 112 for cleaning. Alternatively, the oil collection component 112 can also be fixed to the mounting component 101 or the dust removal component 110 by screws or clips.

[0095] Optionally, the oil collecting element 112 is arranged in a strip shape to cover the dripping range of oil fumes on the dust collector 110.

[0096] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the laser engraving machine 100 also includes a cover 113 and a smoke removal component 114. The cover 113 is mounted on the mounting component 101 and has a smoke removal port. The smoke removal component 114 has multiple smoke removal holes 1141 and is detachably mounted on the smoke removal port.

[0097] In this embodiment, when the laser engraving machine 100 is engraving a workpiece, the cover 113 is placed over the mounting component 101 to form a closed processing space, preventing the smoke and dust generated during engraving from polluting the surrounding environment. Simultaneously, the cover 113 has a pre-installed fume extraction port, through which oil fumes within the processing space can be collected, preventing them from escaping when the cover 113 is opened. A fume extraction component 114 is positioned at the fume extraction port to prevent large objects from falling into and clogging it. The fume extraction port can be connected to an external filter adsorption device, which can collect the oil fumes within the processing space.

[0098] In actual implementation, the smoke removal component 114 can be magnetically connected to the housing 113, allowing the user to easily remove the oil removal component for cleaning. Optionally, the oil removal component can also be fixed to the housing 113 using screws or clips. Optionally, the smoke removal component 114 can be arranged in the form of a grille.

[0099] In one embodiment, the smoke removal component 114 can be disposed at the air inlet 1101 of the dust removal component 110. The filtration and adsorption device can be a filter and a dust removal fan 111. In another embodiment, the dust removal component 110 can be part of the housing 113, and a smoke removal port is provided on the dust removal component 110.

[0100] In one embodiment, such as Figure 1 and Figure 8 As shown, the laser engraving machine 100 also includes a fire extinguishing component 117, which is connected to the mounting component 101. The fire extinguishing component 117 is provided with a fire extinguishing channel, through which fire extinguishing gases such as nitrogen or carbon dioxide can be sprayed onto the burning workpiece to extinguish the fire in time. The end of the fire extinguishing component 117 facing the workpiece can be separated from other parts for easy cleaning and replacement, avoiding the accumulation of oil fumes and dust due to prolonged use.

[0101] An embodiment of this utility model also provides a laser engraving machine, which includes a mounting component 4, a first focus indicator light 105, and a second focus indicator light 106. The mounting component 4 is used to place the workpiece to be engraved, and the first focus indicator light 105 and the second focus indicator light 106 are mounted on top of the mounting component 4. The specific structure and beneficial effects of the mounting component 4, the first focus indicator light 105, and the second focus indicator light 106 can be found in the above embodiments, and will not be repeated here.

[0102] An embodiment of this utility model also provides a laser engraving machine, which further includes an isolator assembly 1041. The isolator assembly 1041 includes a lens barrel 10411, which defines a cavity. An isolator 10412 is disposed within the cavity, and at least one of a beam expander and a protective lens 10413 is disposed within the cavity. The specific structure and beneficial effects of the isolator assembly 1041 can be found in the above embodiments, and the specific structure and beneficial effects of the laser engraving machine can also be found in the above embodiments, and will not be repeated here.

[0103] An embodiment of this utility model also provides a laser engraving machine, which further includes an oil collecting component 112, defining an oil collecting groove 1121. The specific structure of the oil collecting component 112 and its beneficial effects can be found in the above embodiments, and the specific structure of the laser engraving machine and its beneficial effects will not be repeated here.

[0104] This utility model also provides a laser engraving machine, which further includes a housing 113 and a smoke removal component 114. The housing 113 has a smoke removal port, and the smoke removal component 114 has a plurality of smoke removal holes 1141. The smoke removal component 114 is detachably disposed at the smoke removal port. The specific structure and beneficial effects of the housing 113 and the smoke removal component 114 can be found in the above embodiments, and the specific structure and beneficial effects of the laser engraving machine can also be found in the above embodiments, and will not be repeated here.

[0105] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A laser engraving machine, characterized in that, The laser engraving machine includes: The mounting component is used to place the workpiece to be engraved, and the mounting component has threaded holes extending vertically. An adjusting component, comprising a support portion and a connecting portion, wherein the connecting portion has a first external thread, the first external thread and the lower section of the threaded hole form a fit to realize the connection between the connecting portion and the mounting component, and the support portion is fixed below the connecting portion; A locking member having a second external thread, the second external thread engaging with the upper section of the threaded hole to fix the locking member in the upper section of the threaded hole; A laser, mounted above the mounting component, is used to engrave the workpiece to be engraved.

2. The laser engraving machine as described in claim 1, characterized in that, The mounting component has multiple threaded holes, and the laser engraving machine includes multiple adjusting components and multiple locking components. The multiple threaded holes correspond one-to-one with the multiple adjusting components, and the multiple threaded holes correspond one-to-one with the multiple locking components.

3. The laser engraving machine as described in claim 1, characterized in that, The upper end of the connecting part is provided with a first adjustment hole, which is used to cooperate with the first force-applying member to realize the rotation of the adjustment member; or The upper end of the locking member is provided with a second adjustment hole, which is used to cooperate with the second force-applying member to realize the rotation of the locking member.

4. The laser engraving machine as described in claim 1, characterized in that, The projected area of ​​the support portion on the horizontal plane is greater than the projected area of ​​the connecting portion on the horizontal plane.

5. The laser engraving machine as described in claim 1, characterized in that, The laser engraving machine further includes a first focus indicator light and a second focus indicator light, which are mounted above the mounting component; or The laser engraving machine also includes a cover and a smoke removal component. The cover is mounted on the mounting component and has a smoke removal port. The smoke removal component has multiple smoke removal holes and is detachably mounted on the smoke removal port.

6. The laser engraving machine as described in claim 1, characterized in that, The laser engraving machine also includes a mounting base fixed above the mounting component, the mounting base being detachably connected to the laser.

7. The laser engraving machine as described in claim 6, characterized in that, The laser includes an isolator assembly, the isolator assembly includes a lens tube defining a cavity, the cavity being provided with an isolator, and the cavity being provided with at least one of a beam expander and a protective lens.

8. The laser engraving machine as described in claim 6, characterized in that, The laser engraving machine also includes a galvanometer and a field lens. The mounting base has mounting holes for mounting the galvanometer and the field lens.

9. The laser engraving machine as described in claim 1, characterized in that, The laser engraving machine also includes a dust removal component, a dust removal fan, and a filter screen. The dust removal component is fixed on the mounting component. The dust removal component has an air inlet. The dust removal fan is located on the side of the dust removal component away from the workpiece to be engraved. The filter screen is located at the air inlet and is detachably installed at the air inlet.

10. The laser engraving machine as described in claim 9, characterized in that, The laser engraving machine also includes an oil collection component, which defines an oil collection groove and is detachably mounted on the mounting component or the dust removal component.

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