WO2025040082A1 - Laser engraver, laser engraving method and motion system of laser engraver - Google Patents

Abstract

A laser engraver and a laser engraving method. The laser engraver comprises a main body module and a chassis module; the main body module comprises a laser unit, a fixed unit and a moving unit, one end of the fixed unit being connected to the laser unit, and the moving unit being connected to the other end of the fixed unit; the chassis module is arranged on a side of the main body module. The cooperation of the main body module and the chassis module improves the degree of automation of the laser engraver, and allows for high production efficiency. In addition, using a full-automatic focusing and processing operation mode can improve laser engraving precision and allow for high equipment safety performance.

Description

Laser engraving machine, laser engraving method and motion system of laser engraving machine [Technical field]

The invention relates to the technical field of laser engraving equipment, and in particular to a laser engraving machine, a laser engraving method and a motion system of the laser engraving machine.

[Background technology]

Laser engraving machine is an advanced equipment that uses laser to engrave the materials that need to be engraved. Laser engraving machine is different from mechanical engraving machine and other traditional manual engraving methods. It uses the thermal energy of laser to engrave materials. The laser in the laser engraving machine is its core. Generally speaking, the scope of use of laser engraving machine is wider, and the engraving accuracy is higher and the engraving speed is faster. It is precisely because the laser engraving machine has so many advantages that the application of laser engraving machine has gradually replaced the traditional engraving equipment and methods.

The processing accuracy of existing laser engraving machines is not high, and they cannot process materials with large thickness variations. Existing laser engraving machines are all semi-automatic, requiring the operator's proficiency. The operator must press the auto-focus function key when using it to execute the auto-focus function. At this time, due to the operator's negligence or lack of proficiency, the work time is often interrupted, affecting the smoothness of the work process.

Therefore, it is necessary to provide a laser engraving machine and a processing method to solve the above problems.

[Summary of the invention]

The invention provides a laser engraving machine and a processing method to solve the problem that the existing laser engraving machine has low processing precision and cannot process materials with high thickness variation.

A laser engraving machine comprises a main body module and a chassis module, wherein the main body module comprises a laser unit, a fixing unit and a moving unit, one end of the fixing unit is connected to the laser unit, the moving unit is connected to the other end of the fixing unit, and the bottom plate module is arranged on one side of the main body module.

A laser engraving method is also provided, comprising the following steps:

S01, capturing the area to be tested;

S02, presenting the area to be tested;

S03, adjusting the parameters of the area to be tested;

S04: Carve the material of the area to be tested based on the parameters of the area to be tested.

The invention also provides a lifting device, a motion system and a laser engraving machine.

One aspect of the present invention provides a lifting device, which includes a fixed frame unit, a telescopic unit and a driving unit. The telescopic unit is movably connected to the fixed frame unit, and the driving unit is connected to the telescopic unit.

A second aspect of the present invention provides a motion system, which includes a lifting device, an XY-axis motion component, a laser generator and a panel, wherein the XY-axis motion component is connected to the lifting device, one end of the panel is connected to the laser generator, and the other end is connected to the XY-axis motion component.

Compared with the related art, the laser engraving machine and the laser engraving method of the present invention have the following beneficial effects: the whole set of equipment has a high degree of automation, high production efficiency, and adopts a fully automatic focusing and processing operation mode, which can improve the accuracy of laser engraving, and the equipment has high safety performance.

【Brief Description of the Drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

FIG1 is a schematic diagram of the three-dimensional structure of a laser engraving machine provided by the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the laser engraving machine improved by the present invention from another angle;

FIG3 is a schematic diagram of the three-dimensional structure of the laser engraving machine shown in FIG1 after the second upper flip cover is opened;

FIG4 is a schematic diagram of the three-dimensional structure of the main module shown in FIG1 ;

FIG5 is a schematic diagram of the three-dimensional structure of the laser head unit shown in FIG1 ;

FIG6 is a schematic diagram of the three-dimensional structure of the X-axis motion assembly shown in FIG1 ;

FIG7 is a schematic diagram of the three-dimensional structure of the Y-axis motion assembly shown in FIG1 ;

FIG8 is a schematic diagram of the three-dimensional structure of the Z-axis motion assembly shown in FIG1;

FIG9 is a schematic diagram of the three-dimensional structure of the fixing unit shown in FIG1 ;

FIG10 is a schematic diagram of a process of a laser engraving method of the present invention;

FIG11 is a schematic flow chart of the steps of the laser engraving method S03 of the present invention;

FIG12 is a schematic flow chart of step S04 of the laser engraving method of the present invention;

FIG13 is a schematic diagram of a three-dimensional assembly of a lifting device provided by the present invention;

FIG14 is a schematic diagram of the three-dimensional structure of the base unit shown in FIG13;

FIG15 is a partial enlarged view of the combination of the telescopic unit and the driving unit of the lifting device shown in FIG13;

FIG16 is an exploded perspective view of the lifting device shown in FIG13 ;

FIG. 17 is a schematic diagram of a three-dimensional assembly of the motion system.

[Specific implementation method]

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be an electrical connection or a mechanical connection; it can be a direct connection, a connection through an intermediate medium, or a communication between two internal components.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic diagram of the three-dimensional structure of the laser engraving machine provided by the present invention, and FIG. 2 is a schematic diagram of the three-dimensional structure of the laser engraving machine improved by the present invention from another angle.

The laser engraving machine includes a flip module 10, a chassis module 20, a main body module 30, a second flip module 10 and an outer cover 40, wherein the flip module 10 is covered at the opening of the main body module 30, the chassis module 20 is arranged below the main body module 30, and the outer cover 40 is arranged around the main body module 30.

The flip cover module 10 includes a first upper flip cover and a second upper flip cover, one end of the first upper flip cover is connected to the main body module 30 and the second upper flip cover, the first upper flip cover and the second upper flip cover are connected on the same side by a hinge, and the first upper flip cover and the second upper flip cover can be opened in layers.

The chassis module 20 includes a blade plate 201 and a bottom plate 202. The blade plate 201 includes a first crossbar and a second crossbar arranged in parallel, and a plurality of spacers. The spacer array is installed in the first crossbar and the second crossbar to filter the waste generated by the laser engraving machine. The bottom plate 202 and the blade plate 201 form a storage box with a receiving space for storing waste. It can be understood that the storage box is a drawer type. The storage box can be freely removed to store waste.

Please refer to Figures 3 and 4. Figure 3 is a schematic diagram of the three-dimensional structure of the main body module 30 shown in Figure 1, and Figure 4 is a schematic diagram of the three-dimensional structure of the laser engraving machine shown in Figure 1 after opening the second upper cover. The main body module 30 includes a laser unit 301, a base unit 302, a motion unit 303, an inner cover 304 and a fixed unit 305. The laser unit 301 is connected to the fixed unit 305. The laser unit 301 and the fixed unit 305 slide along the motion unit 303 to adjust the position of the laser unit 301. The base is arranged below the motion unit 303, and the inner cover 304 is arranged around the motion unit 303.

At the same time, the laser engraving machine also includes a camera unit 3011.

It should be noted that the photographing unit may be a camera.

Please refer to Fig. 5, which is a schematic diagram of the three-dimensional structure of the laser head unit shown in Fig. 1. The laser unit 301 includes a distance measuring module, a laser generator 3012, a side wall 3013 and a cover 3014. The laser emitter is arranged on one side of the distance measuring module. The laser emitter is used to generate laser light and use the transmitted laser light to process the material to be measured. The distance measuring module is used to locate and collect the position information of the material to be measured. The side wall 3013 is surrounded by a cavity with openings at both ends. The cavity accommodates the laser generator 3012. The cover 3014 is covered at the opening of the cavity. The cover 3014 is provided with a fan hole for heat dissipation. The laser generator 3012 is arranged at one end away from the cover 3014.

It can be understood that the number of the laser generators 3012 can be 2 or more, and the optimal solution is that the number of the laser generators is 2.

The chassis unit 302 includes a frame 3021, a base 3022 and a motor 3023. The frame 3021 forms a rectangular panel, the base 3022 is arranged below the panel, and the motor 3023 is arranged at the four corners of the panel. It can be understood that the number of the base 3022 can be one or more, and the number of the motor 3023 can be one or more.

The motion unit 303 includes an X-axis motion component 3031, a Y-axis motion component 3032 and a Z-axis motion component 3033. The X-axis motion component 3031, the Y-axis motion component 3032 and the Z-axis motion component 3033 are connected in sequence and are respectively arranged at the X-axis position, the Y-axis position and the Z-axis position of the base frame.

Please refer to FIG. 6, which is a schematic diagram of the three-dimensional structure of the X-axis motion assembly 3031 shown in FIG. The X-axis motion assembly 3031 includes a first conveyor belt 3031A, a first slide rail 3031B, a first driving member 3031C, The first connecting frame 3031D and the second connecting frame 3031E are correspondingly arranged, the first slide rail 3031B is arranged in parallel with the first conveyor belt 3031A, the first driving member 3031C is electrically connected to the first conveyor belt 3031A, the first driving member 3031C is arranged on one side of the first slide rail 3031B, the first connecting frame 3031D is connected to one end of the first slide rail 3031B, the second connecting frame 3031E is connected to the other end of the first slide rail 3031B, the first connecting frame 3031D is installed with a pulley, a rack and a bracket for connecting with the Y-axis assembly, and the first connecting frame 3031D and the second connecting frame 3031E have the same shape and structure. It can be understood that the first driving member 3031C drives the first conveyor belt 3031A to operate, the first conveyor belt 3031A is connected to a gear, the first conveyor belt 3031A passes through the gear, and the gear is installed on the fixed unit 305. When the gear is running, it drives the fixed unit 305 and the laser unit 301 as a whole to move along the first slide rail 3031B to adjust the X-axis position of the laser unit 301.

It should be noted that the first driving member 3031C can be a power element such as a motor 3023, a cylinder, etc., and there is no specific limitation.

Please refer to FIG. 7, which is a schematic diagram of the three-dimensional structure of the Y-axis motion assembly 3032 shown in FIG. 1. The Y-axis motion assembly 3032 includes a third connecting frame 3032A and a fourth connecting frame 3032E that are correspondingly arranged. The third frame includes a second conveyor belt 3032B and a second slide rail 3032C. The second slide rail 3032C is arranged in parallel with the second conveyor belt 3032B, and the second slide rail 3032C abuts against the first connecting frame 3031D. The second driving member 3032D is arranged on one side of the second slide rail 3032C. The fourth connecting frame 3032E includes a third conveyor belt 3032F and a third slide rail 3032G. The third slide rail 3032G is arranged in parallel with the third conveyor belt 3032F, and the third slide rail 3032G abuts against the second connecting frame 3031E. Similarly, according to the method for adjusting the X-axis position of the laser unit 301, the Y-axis position of the laser unit 301 is adjusted.

Please refer to FIG8, which is a schematic diagram of the three-dimensional structure of the Z-axis motion assembly 3033 shown in FIG1. The Z-axis motion assembly 3033 includes a fifth connecting frame 3033A and a sixth connecting frame 3034D that are correspondingly arranged, one end of the fifth connecting frame 3033A is connected to the third connecting frame 3032A, the other end of the fifth connecting frame 3033A is connected to the fourth connecting frame 3032E, one end of the sixth connecting frame 3034D is connected to the third connecting frame 3032A, and the other end of the sixth connecting frame 3034D is connected to the fourth connecting frame 3032E. The fifth connecting frame 3033A is installed on the base 3022, and the fifth connecting frame 3033A is connected to the base 3022. 3033A includes a first sliding post 3033B and a second sliding post 3033C, and the sixth connecting frame 3034D includes a third sliding post 3035E and a fourth sliding post 3036F. It can be understood that the motor 3023 of the base frame unit 302 drives the first sliding post 3033B, the second sliding post 3033C, the third sliding post 3035E and the fourth sliding post 3036F to rise and fall synchronously to adjust the Z-direction position of the laser unit 301.

Please refer to FIG. 9 , which is a schematic diagram of the three-dimensional structure of the fixing unit 305 shown in FIG. 1 ; the fixing unit 305 includes a panel 3051 and a transmission unit 3052 , the transmission unit 3052 is mounted on the mounting hole of the panel 3051 , and the position of the transmission unit 3052 corresponds to the mounting hole.

It can be understood that the number of the transmission units 3052 is greater than or equal to 2. In one embodiment, the number of the transmission units 3052 can be 2. In another embodiment, the number of the transmission units is 4. The number of transmission units 3052 is 4, which is the optimal choice.

It should be noted that, in one embodiment, the transmission unit 3052 is a roller with a through hole; in another embodiment, the transmission unit 3052 is a pulley; the specific structure of the transmission unit 3052 is not limited, as long as it can drive the laser unit 301 to slide along the slide rail.

In this embodiment, for the convenience of description, the components of each element are not described in detail one by one, and those shown in the figure are all components of this embodiment.

Please refer to FIG. 10 , which is a schematic flow chart of the laser engraving method of the present invention, and the method comprises the following steps:

Capture the area to be tested;

Presenting the area to be tested;

Adjusting parameters of the area to be tested;

Based on the parameters of the area to be tested, the material of the area to be tested is engraved.

It is understandable that the device for capturing the area to be tested is a camera, a lens, or a camera. As long as it can accurately capture the actual situation of the processing area and realize functions such as visual positioning and material identification, there is no specific limitation.

It should be noted that the steps in FIG. 10 above also include:

The terminal device scans in the local area network to connect to the laser engraving machine;

Placing the material to be tested in the laser engraving machine, and selecting a predetermined engraving area of the material to be tested;

Based on the predetermined engraving area, the terminal device controls the laser engraving machine to complete the processing of the material to be tested.

It is understandable that the terminal device can search and connect to the laser engraving machine via USB or WiFi.

It should be noted that the steps in claim 8 of the present invention are not limited to a specific order. As long as the logical order in the calculation process can be met, it can be considered that the steps appearing in claim 8 can be adjusted with each other.

It should be noted that the steps in FIG. 10 above also include:

Setting a plurality of processing information of the laser engraving machine, wherein the plurality of processing information is the speed and distance of the laser engraving machine moving in the X direction, the Y direction or the Z direction;

The plurality of processing information is transmitted to the laser engraving machine through the terminal device;

According to the various processing information, the laser generator of the laser engraving machine moves above the material to be tested and automatically carves the material to be tested.

In this embodiment, the laser engraving method further includes placing the material to be tested in the laser engraving machine and scanning the material to be tested to obtain information about the material to be tested. The method steps include:

The laser generator scans the material to be tested to receive laser radiation reflected by the material to be tested;

Feeding the continuous analog signal generated by the laser radiation to the terminal device to obtain continuous analog telecommunication;

According to the continuous analog electrical signal of the terminal device, an image of the material to be tested is restored to be displayed in real time to obtain three-dimensional image information data of the material to be tested.

In this embodiment, the S01 step of the laser engraving method of the present invention includes the following steps:

S011. Obtain the first IP address and the first MAC address corresponding to the terminal device;

S012. Determine, based on the first IP address, a local area network address range in which the first IP address is located;

S013, simultaneously performing a PING operation on a set of other IP addresses within the LAN address range of the first IP address to obtain an IP address for which communication detection succeeds, and marking it as a second IP address;

S014. Execute the arp-a command to obtain the second MAC address of the laser engraving machine corresponding to the second IP address;

S015. Pair and connect the terminal device and the laser engraving machine according to the correspondence between the first MAC address and the second MAC address.

In this embodiment, it is determined whether the first three bytes of the first MAC address and the first three bytes of the selected second MAC address are consistent; if the two are consistent, the terminal device is successfully connected to the laser engraving machine, and the wireless network card IP address corresponding to the laser engraving machine is obtained; communication detection is performed on the wireless network card IP address to obtain detailed information of the laser engraving machine.

It should be noted that the terminal device may be a mobile phone, tablet, computer or other terminal device, which may be selected according to actual conditions.

Please refer to FIG. 11 , which is a flow chart of step S03 of the laser engraving method of the present invention, wherein the method comprises the following steps:

S031, the laser generator scans the material to be tested to receive laser radiation reflected by the material to be tested;

S032, feeding the continuous analog signal generated by the laser radiation to the terminal device to obtain a continuous analog electrical signal;

S033. Restore the continuous analog electrical signal of the terminal device to display the image of the material to be tested in real time, so as to obtain three-dimensional image information data of the material to be tested.

Please refer to FIG. 12 , which is a flow chart of step S04 of the laser engraving method of the present invention, wherein the method comprises the following steps:

S041, presetting parameters of a laser generator and a photosensitive component, and calculating the distance between the laser generator and a first point to be measured of the material to be measured according to the parameters;

S042, defining the distance between the laser generator and the material to be tested as BF, and defining the distance between the photosensitive component and the material to be tested as AF; wherein the position of the laser generator is B, the position of the photosensitive component is A, and the first point to be tested of the material to be tested is F;

S043, adjusting the distance between the laser generator and the material to be tested so that there is a second point to be tested on the material to be tested relative to the laser generator;

S044, defining a second point to be measured of the material to be measured as E; defining a distance between the laser generator and the second point to be measured as BE;

S045, presetting a pixel plane at the F point, the pixel plane being perpendicular to the AF;

S046, defining the position of the projection point of the second point to be tested of the material to be tested on the pixel surface as e;

S047. Calculate the distance between e and F, and calculate the proportional coefficient based on the distance.

In this embodiment, the following steps are also included:

The method steps of step S041 include:

A distance between the laser generator and the photosensitive component is preset, marked as AB;

The angle between the photosensitive component and the AB line is preset to be β;

It is preset that the straight line between the laser generator and the first point to be measured is perpendicular to AB;

The distance between the laser generator and the first point to be measured is calculated according to trigonometric functions, and the calculation method is: AB*=BF.

The method steps of step S047 include:

S0471. Mark the projection point as point e;

S0472, calculating the physical distance between the e F, marked as s;

S0473, calculating the pixel distance between e F, marked as s’;

S0474, calculate the proportionality coefficient between the s and the s’, marked as Ki.

The method steps of step S0472 include:

S04721. Calculate the angle α between the AE and the AB according to the trigonometric function relationship; the calculation formula is:

tanα＝BE/AB, get the value of tanα, and calculate the angle α according to the inverse trigonometric function;

S04722, calculating the distance between the photosensitive component and the first point to be measured, marked as AF;

The calculation formula is: AF ² =AB ² +BE ² ;

S04723. In the right triangle AFe, calculate the physical distance between eF;

The calculation formula is:

tan(α-β)=eF/AF, and the physical distance between eF is obtained, which is marked as s.

The method steps of step S0474 include:

S04741, mark the width of the material to be tested as W; mark the placement distance between the material to be tested and the photosensitive component as D; mark the camera of the photosensitive component to take a picture of the material to be tested and measure the pixel width of the material to be tested as P;

S04742, calculating the camera focal length F of the photosensitive component according to the calculation formula F=(P x D)/W;

S04743, then calculate the pixel distance s’ according to the calculation formula S’=(W x F)/P.

The present invention also provides a focus measurement method for a laser engraving machine, and the focus measurement method for the laser engraving machine comprises the following steps:

S01, read the proportionality coefficient Ki;

S02, measuring the pixel distance between the projection point and the first point to be measured, marked as s'; wherein the step of measuring the pixel distance between the projection point and the first point to be measured, marked as s', comprises: marking the width of the material to be measured as W; marking the placement distance between the material to be measured and the photosensitive component as D; marking the camera of the photosensitive component to take a picture of the material to be measured and measure the pixel width of the material to be measured as P; calculating the camera focal length F of the photosensitive component according to the calculation formula F = (P x D) / W; and then calculating the pixel distance s' according to the calculation formula s' = (W x F) / P;

S03, calculating the physical distance between the projection point and the first point to be measured according to the proportional coefficient Ki and s', marked as s;

S04, calculating the distance between the laser generator and the second point to be measured, marked as BE'.

In this embodiment, it can be understood that, before the laser engraving machine leaves the factory, the calibration and debugging of the laser engraving machine equipment needs to be completed, and at this time, the BE distance is known. However, after the laser engraving machine is delivered to the user for use, the user calculates the distance BE' between the laser generator and the second point to be measured according to the proportional coefficient Ki and the BF stored in the processing device, and the BE' distance is equal to the BE distance, that is, the BE' distance is the calibration distance of the laser engraving machine.

It is understandable that, in order to realize the automatic operation of the laser engraving machine 100, it is also necessary to be equipped with corresponding sensing devices and signal output devices, which adopt conventional technical means in this field and are not limited by the present invention.

Compared with the related art, the laser engraving machine and the laser engraving method of the present invention have the following beneficial effects: the whole set of equipment has a high degree of automation, high production efficiency, and adopts a fully automatic focusing and processing operation mode, which can improve the accuracy of laser engraving, and the equipment has high safety performance.

Please refer to Figure 13, which is a three-dimensional assembly diagram of a lifting device 9100 provided by the present invention. A lifting device 9100 includes a fixed frame unit 910, a base unit 920, a telescopic unit 930 and a driving unit 940, wherein the fixed frame unit 910 is arranged in parallel with the base unit 920, the fixed frame unit 910 is used to fix the laser generator 9300, one end of the telescopic unit 930 is installed on the base unit 920, and the other end is movably connected to the fixed frame unit 910, the telescopic unit 930 is used to drive the laser generator to climb or descend, and the driving unit 940 is connected to the telescopic unit 930 to drive the telescopic unit 930 to operate.

It should be noted that the driving unit 940 is a motor, gear drive, belt drive or cylinder, and any of them can drive the telescopic unit to move. In this embodiment, the best choice is a motor.

Please refer to FIG. 13 and FIG. 16 , FIG. 16 is a three-dimensional exploded view of the lifting device 9100 shown in FIG. 13 . The fixed frame unit 910 includes a first Y-axis motion component 9101, a second Y-axis motion component 9102, a first connecting plate 9103, a second connecting plate 9104, a third connecting plate 9105 and a fourth connecting plate (not shown in the figure), the first Y-axis motion component 9101 and the second Y-axis motion component 9102 are arranged in parallel, the first Y-axis motion component 9101 and the second Y-axis motion component 9102 are respectively connected to the telescopic unit 930 for adjusting the Y-axis direction of the laser generator 9300, the first connecting plate 9103 is provided with a plurality of heat dissipation holes, and the first connecting plate 9103 is provided with a plurality of heat dissipation holes. A fan 91031 is installed for heat dissipation; the second connecting plate 9104 is connected to the first connecting plate 9103 through the telescopic unit 930, the second connecting plate 9104 corresponds to the position of the first Y-axis motion component 9101, and the first Y-axis motion component 9101 is installed in the second connecting plate 9104; the third connecting plate 9105 is connected to the first connecting plate 9103 through the telescopic unit 930, the third connecting plate 9105 corresponds to the position of the second Y-axis motion component 9102, and the second Y-axis motion component 9102 is installed in the third connecting plate 9105.

Please refer to Fig. 14, which is a schematic diagram of the three-dimensional structure of the base unit 920 shown in Fig. 13. The base unit 920 includes a frame 9201 and a support seat 9202, the frame 9201 includes a first frame 92011, a second frame 92012, a third frame 92013, and a fourth frame 92014, the frame 9201 is provided with holes, and the frames 9201 are connected in pairs through the holes to form a frame with openings at both ends (not shown), and the support seat 9202 is installed at the bottom of the frame for fixing the frame.

Please refer to FIG. 15 and FIG. 16 . FIG. 15 is a telescopic unit of the lifting device 9100 shown in FIG. 13 . FIG16 is a partial enlarged view of the combination of the lifting device 9100 shown in FIG13 and the driving unit 930 and the driving unit 940. FIG17 is a three-dimensional exploded view of the lifting device 9100 shown in FIG13. The telescopic unit 930 includes a fixed block 9301, a vertical rod assembly 9302, a slide rail assembly 9303, a connecting block 9304 and a limiting collar 9305. The fixed block 9301 is provided with a mounting hole; one end of the vertical rod assembly 9302 is connected to the mounting hole, and the other end is fixed to the driving unit 940. The vertical rod assembly 9302 includes a first vertical rod 93021, a second vertical rod 93022, a third vertical rod 93023, and a fourth vertical rod 93024. The slide rail assembly 9303 includes a first slide rail 93031, a second slide rail 93032, a third slide rail 93033, and a fourth slide rail 93034. The first slide rail 93031 is arranged in parallel with the first vertical rod 93021. One end of the first vertical rod 93021 is connected to the mounting hole. The other end of 3021 is fixed on the first frame 92011, and the first vertical rod 93021 assembly 9302 and the first slide rail 93031 pass through the mounting hole and are fixed on the fixed block 9301; similarly, the second slide rail 93032 and the second vertical rod 93022, the third slide rail 93033 and the third vertical rod 93023, the fourth slide rail 93034 and the fourth vertical rod 93024 are arranged in the same manner as the first slide rail 93031 and the first vertical rod 93021; one end of the connecting block 9304 is connected to the first Y-axis motion assembly 9101, and the other end is connected to the first vertical rod 93021, and the limiting ring 9305 abuts against the connecting block 9304 to limit the sliding direction of the telescopic unit 930.

It can be understood that the number of the vertical rod assembly 9302, the sliding rail assembly 9303, the fixed block 9301, and the connecting block 9304 can be 2 or more, and the optimal number of the vertical rod assembly is 8, and the optimal number of the sliding rail assembly 9303, the fixed block 9301, and the connecting block 9304 is 4. Users can choose according to actual conditions, and there is no limit on the specific number.

In this embodiment, for the convenience of description, the components of each element are not described in detail one by one, and those shown in the figure are all components of this embodiment.

Please refer to Figure 17, which is a schematic diagram of the three-dimensional assembly of the motion system. The motion system 91 includes a lifting device 9100, an XY axis motion assembly 9200, a laser generator 9300 and a panel 9400; the XY axis motion assembly 9200 is connected to the lifting device 9100, the laser generator 9300 is movably connected to the XY axis motion assembly 9200, and one end of the panel 9400 is connected to the laser generator 9300 and the other end is connected to the XY axis motion assembly 9200.

This embodiment also provides a laser engraving machine (not shown), the laser engraving machine 91000 is used to generate a laser beam to irradiate the surface of a workpiece, and then cut the workpiece. The laser engraving machine 91000 includes a body, and the body includes a lifting device 9100.

It is understandable that in order to realize the automatic operation of the lifting device 9100, it is also necessary to equip corresponding sensing devices and signal output devices, which adopt conventional technical means in this field and the present invention does not limit this.

The working principle of this embodiment is as follows: a laser engraving machine (not shown) is connected to a terminal device, the lifting device 9100 is used to adjust the height of the laser engraving machine (not shown), the lifting device 9100 includes a fixed frame unit 910, a telescopic unit 930 and a driving unit 940, the driving unit 940 is electrically connected to the telescopic unit 930, the telescopic unit 930 is provided with the vertical rod assembly 9302 and the slide rail assembly 9303, and drives the fixed frame unit 910 to rise along the slide rail assembly 9303. When the fixed frame unit 910 reaches the end of its rising height, the terminal device records the maximum rising height of the fixed frame unit 910, and uses the height as a reference to adjust the remaining three heights.

Compared with the prior art, the present invention provides a lifting device 9100, a motion system 91 and a laser engraving machine (not shown). By providing a lifting device 9100 with a telescopic unit 930, the motion difference between each motor can be reduced, thereby reducing the problem of different climbing and descending heights of the telescopic unit 930, improving the engraving accuracy of the laser engraving machine (not shown), and having a simple structure and easy use.

The above descriptions are only some embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (16)

A laser engraving machine, characterized by comprising: The main body module comprises: Laser unit; A fixing unit, one end of which is connected to the laser unit; A moving unit connected to the other end of the fixed unit; The chassis module is arranged on one side of the main body module. The laser engraving machine according to claim 1, characterized in that the laser unit comprises: Distance measurement module; A laser generator, which is arranged on one side of the distance measuring module; A side wall, which encloses a cavity with two openings at both ends, and the cavity accommodates the laser generator; A cover body is arranged on the opening of the cavity. The laser engraving machine according to claim 1, characterized in that the fixing unit comprises: A panel having a mounting hole; A transmission assembly, which is mounted on the panel and corresponds to the position of the mounting hole; A supporting component has one end connected to the panel and the other end connected to the motion unit. The laser engraving machine according to claim 1, characterized in that the motion unit comprises: X-axis motion assembly, the X-axis motion assembly comprising: First conveyor belt; a first slide rail, which is arranged parallel to the first conveyor belt; a first driving member, which is electrically connected to the first conveyor belt and is disposed on one side of the first slide rail; A first connecting frame and a second connecting frame are correspondingly arranged, wherein the first connecting frame is connected to one end of the first slide rail, and the second connecting frame is connected to the other end of the first slide rail. The laser engraving machine according to claim 4, characterized in that the motion unit further comprises: Y-axis motion assembly, the Y-axis motion assembly comprising: A third connecting frame, the third connecting frame comprising: Second conveyor belt; The second slide rail is arranged parallel to the second conveyor belt and abuts against the first connecting frame. catch; a second driving member, which is disposed on one side of the second slide rail; A fourth connecting frame, which is arranged corresponding to the third connecting frame, and the fourth connecting frame comprises: The third conveyor belt; The third slide rail is arranged parallel to the third conveyor belt and abuts against the second connecting frame. The laser engraving machine according to claim 5, characterized in that the motion unit further comprises: A Z-axis motion assembly, the Z-axis motion assembly comprising: a fifth connecting frame, one end of which is connected to the third connecting frame, and the other end of which is connected to the fourth connecting frame; The sixth connecting frame is arranged corresponding to the fifth connecting frame, one end of which is connected to the third connecting frame, and the other end of which is connected to the fourth connecting frame. The laser engraving machine according to claim 1, characterized in that the chassis module comprises: Knife board; The bottom plate and the knife plate form a storage box with a receiving space. A lifting device for a laser engraving machine, characterized by comprising: Fixed rack unit; A telescopic unit, the telescopic unit being movably connected to the fixing frame unit; A driving unit is connected to the telescopic unit. The lifting device of the laser engraving machine according to claim 8, characterized in that the telescopic unit comprises: A fixing block having a mounting hole; A vertical rod assembly, one end of which is connected to the mounting hole and the other end is fixed to the driving unit; The slide rail assembly is arranged in parallel with the vertical rod assembly, and the vertical rod assembly and the slide rail assembly are installed in the installation hole. The lifting device of the laser engraving machine according to claim 8 is characterized in that the fixed frame unit includes a first Y-axis motion component and a second Y-axis motion component arranged in parallel. The lifting device of the laser engraving machine according to claim 10 is characterized in that the telescopic The unit also includes: a connecting block, one end of which is connected to the first Y-axis motion assembly or the second Y-axis motion assembly, and the other end of which is connected to the telescopic unit; A limiting collar abuts against the connecting block. The lifting device of the laser engraving machine according to claim 10, characterized in that the fixing frame unit further comprises: A first connecting plate having a plurality of heat dissipation holes; A second connecting plate, which is connected to the first connecting plate through the telescopic unit, and the second connecting plate corresponds to the first Y-axis motion component; The third connecting plate is connected to the first connecting plate through the telescopic unit, and the third connecting plate corresponds to the position of the second Y-axis motion component. The lifting device of the laser engraving machine according to claim 8 is characterized in that it also includes a base unit, the base unit is arranged in parallel with the fixed frame unit, and the base unit includes: Frames, wherein the frames are connected in pairs to form a frame with openings at both ends; A support base is installed at the bottom of the frame. The lifting device of the laser engraving machine according to claim 8 is characterized in that a fan is installed in the first connecting plate. A motion system, comprising: The lifting device of the laser engraving machine according to any one of claims 8 to 14; An XY axis motion assembly is connected to the lifting device of the laser engraving machine. The exercise system according to claim 8, further comprising: Laser generator; A panel has one end connected to the laser generator and the other end connected to the XY axis motion component.