Laser engraving machine with good protection performance

Abstract

The utility model discloses a laser engraving machine with good protective performance, which comprises a protective mechanism and an engraving mechanism arranged in the protective mechanism, the protective mechanism comprises a protective cover module and a protective cover transmission module, and the engraving mechanism comprises an engraving transmission module and an engraving module. The protective cover module comprises an upper cover plate, a lower bottom plate, a front side cover plate and a rear cover plate, an engraving area is formed among the upper cover plate, the lower bottom plate, the front side cover plate and the rear cover plate, a limiting sliding groove is formed between the upper cover plate and the rear cover plate, the protective cover transmission module is arranged on the inner side of the rear cover plate and is in transmission connection with the front side cover plate, and the engraving transmission module is arranged on the inner side of the upper cover plate. The carving module is arranged at the lower end of the carving transmission module; wherein the front side cover plate slides up and down in the limiting sliding groove through the protective cover transmission module, the engraving module moves in the engraving area through the engraving transmission module, the protective mechanism is used for filtering dazzling laser in the engraving process to prevent eyes from being burnt, and the engraving mechanism is used for machining an object to be engraved.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving machines, in particular to a laser engraving machine with good protection performance. Background Art

[0002] In the prior art, engraving machines are widely used in the field of production and processing. From the processing principle, engraving is a combination of drilling and milling. Existing computer engraving machines are divided into two categories: laser engraving and mechanical engraving. Different types of engraving machines can be selected according to power requirements, so the application range of engraving machines is very wide. Existing laser engraving machines often consist of two parts: a support frame and an engraving module. However, such a structure has no protective cover on the outside, which is easy to damage the user's eyes during the laser engraving process. At the same time, existing engraving modules are often used.

[0003] Regarding the related technology, the existing laser engraving machine lacks a protective cover, which easily causes the user's eyes to be damaged by the laser, and the engraving module occupies a large space and has poor processing accuracy. There is still a lack of better technical solutions. Utility Model Content

[0004] In view of this, it is necessary to provide a laser engraving machine with good protective performance to at least solve the problems in the related art that the existing laser engraving machines lack protective covers, which can easily cause the user's eyes to be damaged by laser, and the engraving module occupies a large space and has poor processing accuracy.

[0005] The embodiment of the present application provides a laser engraving machine with good protection performance, which includes a protection mechanism and an engraving mechanism arranged inside the protection mechanism, the protection mechanism includes a protection cover module and a protection cover transmission module, the engraving mechanism includes an engraving transmission module and an engraving module, the protection cover module includes an upper cover plate, a lower bottom plate, a front cover plate and a rear cover plate, an engraving area is formed between the upper cover plate, the lower bottom plate, the front cover plate and the rear cover plate, a limiting slide groove is formed between the upper cover plate and the rear cover plate, the protection cover transmission module is arranged on the inner side of the rear cover plate and is transmission-connected with the front cover plate, the engraving transmission module is arranged on the inner side of the upper cover plate, and the engraving module is arranged at the lower end of the engraving transmission module; wherein, the front cover plate slides up and down in the limiting slide groove through the protection cover transmission module, the engraving module moves in the engraving area through the engraving transmission module, the protection mechanism is used to filter the dazzling laser during the engraving process to avoid burning the eyes, and the engraving mechanism is used to process the object to be engraved.

[0006] In one embodiment, both sides of the rear cover plate are provided with limit plates extending forward, the lower end of the upper cover plate is provided with an inner protective cover adapted to the limit plates, the gap between the inner side of the limit plates and the outer side of the inner protective cover forms the limit slide groove, and the inner side of the inner protective cover forms an engraving transmission area.

[0007] In one embodiment, the protective cover transmission module includes a fixed plate, a transmission slide rail, a transmission slider, a tension spring, a transmission roller and a limit device, the fixed plate is covered and fixed on the inner side of the rear cover plate, the transmission slide rail is installed on the outer side of the fixed plate, one side of the transmission slider is slidably arranged on the transmission slide rail, the other side of the transmission slider is fixedly connected to the front cover plate, the transmission roller is rotatably arranged on the transmission slide rail, one end of the tension spring is fixedly connected to the fixed plate, the other end of the tension spring bypasses the transmission roller and is fixedly connected to the front cover plate, and the limit device is arranged on the upper and lower sides of the transmission slide rail; wherein, when the front cover is opened, The transmission slide plate is configured to move upward on the transmission slide rail through the upward thrust of the user and the upward pulling force of the tension spring. When the transmission slide plate reaches the top, it is fixed by the upward pulling force of the tension spring and the upward suction of the limit device to prevent the front cover plate from falling suddenly. The front cover plate is closed, and the transmission slide plate is moved downward on the transmission slide rail through the gravity of the front cover plate. At this time, the tension spring generates an upward pulling force to buffer the front cover plate. When the transmission slide plate reaches the bottom, the upward pulling force of the tension spring is offset by the downward suction of the limit device to prevent the front cover plate from rising suddenly during the laser engraving process.

[0008] In one embodiment, the limit device includes an upper limit magnet, a lower limit magnet and a limit switch, the upper limit magnet is located below the transmission roller, the lower limit magnet is located below the upper limit magnet, the limit switch is located at the lower end of the lower limit magnet, the upper limit magnet and the lower limit magnet are respectively connected to the limit switch, the upper limit magnet is used to limit the transmission slider at the uppermost end of the transmission slide rail, and the lower limit magnet is used to limit the transmission slider at the lowermost end of the transmission slide rail.

[0009] In one embodiment, the engraving transmission module includes a control panel, an X-axis transmission module, a Y-axis transmission module and a Z-axis transmission module, the control panel and the Y-axis transmission module are fixed to the inner side of the inner protective cover, the X-axis transmission module is arranged below the Y-axis transmission module, the Z-axis transmission module is arranged below the X-axis transmission module, and the engraving module is arranged on the Z-axis transmission module; wherein the Y-axis transmission module is used to drive the X-axis transmission module, the Z-axis transmission module and the engraving module to translate along the Y-axis direction, the X-axis transmission module is used to drive the Z-axis transmission module and the engraving module to translate along the X-axis direction, and the Z-axis transmission module is used to drive the engraving module to translate along the Z-axis direction.

[0010] In one embodiment, the Y-axis transmission module includes a Y-axis fixed seat, a Y-axis transmission driving member, a Y-axis main synchronous wheel, a Y-axis slave synchronous wheel, a Y-axis synchronous belt, a Y-axis roller and a Y-axis moving block, the Y-axis fixed seat is fixed to the lower end of the inner protective cover, the Y-axis transmission driving member is installed on the Y-axis fixed seat, the Y-axis main synchronous wheel and the Y-axis slave synchronous wheel are respectively rotatably arranged at the two ends of the Y-axis fixed seat, the Y-axis main synchronous wheel is transmission-connected to the Y-axis transmission driving member, and the Y-axis synchronous belt sleeve is covered on the Y-axis main synchronous wheel and The outer surface of the Y-axis slave synchronous wheel, the Y-axis moving block is sleeved on the Y-axis synchronous belt and is fixedly connected to the X-axis transmission module, the inner wall of the Y-axis fixed seat is provided with a Y-axis slide rail, the Y-axis roller is rotatably arranged on the Y-axis slide rail and is fixedly connected to the X-axis transmission module; wherein, the Y-axis transmission driving member drives the Y-axis slave synchronous wheel and the Y-axis synchronous belt to rotate through the Y-axis main synchronous wheel, thereby driving the X-axis transmission module to translate along the Y-axis direction in the Y-axis slide rail through the Y-axis moving block and the Y-axis roller.

[0011] In one embodiment, the X-axis transmission module includes an X-axis fixed seat, an X-axis transmission drive member, an X-axis main synchronous wheel, an X-axis slave synchronous wheel, an X-axis synchronous belt, an X-axis roller and an X-axis moving block, the X-axis fixed seat is fixedly connected to the Y-axis roller and the Y-axis moving block, the outer surface of the X-axis fixed seat is covered with a protective shell, the X-axis transmission drive member is installed on the X-axis fixed seat, the X-axis main synchronous wheel and the X-axis slave synchronous wheel are respectively rotatably arranged at both ends of the X-axis fixed seat, the X-axis main synchronous wheel is transmission-connected to the X-axis transmission drive member, and the X-axis synchronous belt The sleeve is covered on the outer surfaces of the X-axis main synchronous wheel and the X-axis slave synchronous wheel, the X-axis moving block is sleeved on the X-axis synchronous belt and is fixedly connected to the Z-axis transmission module, the inner wall of the X-axis fixed seat is provided with an X-axis slide rail, the X-axis roller is rotatably arranged on the X-axis slide rail and is fixedly connected to the Z-axis transmission module; wherein, the X-axis transmission driving member drives the X-axis slave synchronous wheel and the X-axis synchronous belt to rotate through the X-axis main synchronous wheel, thereby driving the Z-axis transmission module to translate along the X-axis direction in the X-axis slide rail through the X-axis moving block and the X-axis roller.

[0012] In one embodiment, the Z-axis transmission module includes a Z-axis fixed seat, a Z-axis transmission driver, a Z-axis main synchronous wheel, a Z-axis slave synchronous wheel, a Z-axis synchronous belt, a Z-axis roller and a Z-axis moving block, the Z-axis fixed seat is fixedly connected to the X-axis roller and the X-axis moving block, the Z-axis transmission driver is installed on the Z-axis fixed seat, the Z-axis main synchronous wheel and the Z-axis slave synchronous wheel are respectively rotatably arranged at the two ends of the Z-axis fixed seat, the Z-axis main synchronous wheel is transmission-connected to the Z-axis transmission driver, and the Z-axis synchronous belt sleeve is covered on the The outer surface of the Z-axis main synchronous wheel and the Z-axis slave synchronous wheel, the Z-axis moving block is sleeved on the Z-axis synchronous belt and is fixedly connected to the engraving module, the inner wall of the Z-axis fixed seat is provided with a Z-axis slide rail, and the Z-axis roller is rotatably arranged on the Z-axis slide rail and is fixedly connected to the engraving module; wherein, the Z-axis transmission driving member drives the Z-axis slave synchronous wheel and the Z-axis synchronous belt to rotate through the Z-axis main synchronous wheel, thereby driving the engraving module to translate along the Z-axis direction in the Z-axis slide rail through the Z-axis moving block and the Z-axis roller.

[0013] In one embodiment, the engraving module includes an engraving head and a visual system, and the visual system is arranged inside the engraving head; wherein the visual system is used to locate the object to be engraved, and the engraving head is used to process the object to be engraved.

[0014] In one of the embodiments, ventilation holes are provided on the rear cover plate and the fixed plate, and exhaust fans are installed at the ventilation holes; wherein the smoke exhaust fan is used to discharge the smoke generated by the engraving to the outside of the protective mechanism during the engraving process.

[0015] The beneficial effects of the utility model are as follows: the application adopts the structural design of the protection mechanism, and drives the protection cover module to open or close through the protection cover transmission module, thereby solving the problem of laser damaging the user's eyes during laser engraving. Specifically, by adopting the tension spring, the transmission roller and the transmission slide block, the front cover plate slides on the transmission slide rail, and the limit magnet and the stroke switch limit the front cover plate, so that the front cover plate is opened or closed outside the engraving mechanism, the front cover plate is easy to lift, and the problem of the front cover plate suddenly falling due to gravity or suddenly rising due to the tension of the tension spring can be avoided, and the safety is high. At the same time, the engraving transmission module adopts the embedded slide rail, which greatly reduces the space occupied by the engraving transmission module, improves the transmission accuracy, has a high degree of automation, and is strong in practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application without the upper cover plate and the rear cover plate;

[0017] Figure 2 This is an external overall stereoscopic view of an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of the present application without the front cover plate;

[0019] Figure 4 This is a front view of the protective cover transmission module of the embodiment of the present application;

[0020] Figure 5 A three-dimensional view of the engraving mechanism of an embodiment of the present application;

[0021] Figure 6 This is a bottom view of the engraving mechanism of an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figures 1 to 6 , a laser engraving machine with good protection performance according to an embodiment of the present application comprises a protection mechanism 100, and an engraving mechanism 200 arranged inside the protection mechanism 100, the protection mechanism 100 comprises a protection cover module 11 and a protection cover transmission module 12, the engraving mechanism 200 comprises an engraving transmission module 21 and an engraving module 22, the protection cover module 11 comprises an upper cover plate 111, a lower bottom plate 112, a front side cover plate 113 and a rear cover plate 114, an engraving area is formed between the upper cover plate 111, the lower bottom plate 112, the front side cover plate 113 and the rear cover plate 114, a limiting slide groove 115 is formed between the upper cover plate 111 and the rear cover plate 114, the protection cover transmission module 12 is arranged on the inner side of the rear cover plate 114 and is transmission-connected with the front side cover plate 113, the engraving transmission module 21 is arranged on the inner side of the upper cover plate 111, and the engraving module 22 is arranged at the lower end of the engraving transmission module 21;

[0026] It should be noted that the front cover plate 113 slides up and down in the limiting slide groove 115 through the protective cover transmission module 12, and the engraving module 22 moves in the engraving area through the engraving transmission module 21. The engraving area is surrounded by the upper cover plate 111, the lower base plate 112, the front cover plate 113 and the rear cover plate 114. During the engraving process, the upper cover plate 111, the lower base plate 112, the front cover plate 113 and the rear cover plate 114 are made of laser protection materials, which can block and filter the dazzling laser, thereby avoiding the user's eyes from being burned, and the protection effect is good.

[0027] In some optional embodiments, forward-extending limit plates 116 are provided on both sides of the rear cover plate 114, an inner protective cover 117 matched with the limit plates 116 is provided at the lower end of the upper cover plate 111, a limit slot 115 is formed in the gap between the inner side of the limit plates 116 and the outer side of the inner protective cover 117, and an engraving transmission area is formed on the inner side of the inner protective cover 117.

[0028] It should be noted that the limiting slide groove 115 has a limiting and guiding function for the front cover plate 113 to prevent the front cover plate 113 from deviating and thus performing a lifting movement.

[0029] In some optional embodiments, the protective cover transmission module 12 includes a fixed plate 121, a transmission rail 122, a transmission slider 123, a tension spring 124, a transmission roller 125 and a limiting device. The fixed plate 121 is covered and fixed on the inner side of the rear cover plate 114, the transmission rail 122 is installed on the outer side of the fixed plate 121, one side of the transmission slider 123 is slidably arranged on the transmission rail 122, the other side of the transmission slider 123 is fixedly connected to the front cover plate 113, the transmission roller 125 is rotatably arranged on the transmission rail 122, one end of the tension spring 124 is fixedly connected to the fixed plate 121, the other end of the tension spring 124 bypasses the transmission roller 125 and is fixedly connected to the front cover plate 113, and the limiting device is arranged on the upper and lower sides of the transmission rail 122;

[0030] In some optional embodiments, the limit device includes an upper limit magnet 126, a lower limit magnet 127 and a limit switch 128. The upper limit magnet 126 is located below the transmission roller 125, the lower limit magnet 127 is located below the upper limit magnet 126, the limit switch 128 is located at the lower end of the lower limit magnet 127, the upper limit magnet 126 and the lower limit magnet 127 are electrically connected to the limit switch 128 respectively, the upper limit magnet 126 is used to limit the transmission slider 123 at the uppermost end of the transmission slide rail 122, and the lower limit magnet 127 is used to limit the transmission slider 123 at the lowermost end of the transmission slide rail 122.

[0031] It should be noted that when the front cover 113 is opened, the transmission slider 123 moves upward on the transmission slide rail 122 through the upward thrust of the user and the upward pulling force of the tension spring 124. When the transmission slider 123 reaches the top, it is fixed by the upward pulling force of the tension spring 124 and the upward suction force of the upper limit magnet 126 to prevent the front cover 113 from falling suddenly; when the front cover 113 is closed, the transmission slider 123 moves downward on the transmission slide rail 122 through the downward gravity of the front cover 113. At this time, the tension spring 124 generates an upward pulling force to buffer the front cover 133. When the transmission slider 123 reaches the bottom, the upward pulling force of the tension spring 124 is offset by the downward suction force of the lower limit magnet 127 to prevent the front cover 113 from rising suddenly during the laser engraving process, thereby improving the safety of the protective cover module 21 and having high safety.

[0032] It should be noted that the transmission slide rail 122 and the transmission slider 123 adopt industrial-grade slide rails and industrial-grade sliders, which run smoothly, and a safety protection switch is provided at the lower end of the limit switch 128. When the transmission slider 123 reaches the bottom and touches the safety protection switch, the engraving mechanism 200 will work. If the safety protection switch is not touched, the engraving mechanism 200 will not work and the engraving operation cannot be performed.

[0033] In some optional embodiments, the engraving transmission module 21 includes a control panel 211, an X-axis transmission module 212, a Y-axis transmission module 213 and a Z-axis transmission module 214, the control panel 211 and the Y-axis transmission module 213 are fixed to the inner side of the inner protective cover 117, the X-axis transmission module 212 is arranged below the Y-axis transmission module 213, the Z-axis transmission module 214 is arranged below the X-axis transmission module 212, and the engraving module 22 is arranged on the Z-axis transmission module 214;

[0034] It should be noted that the Y-axis transmission module 213 is used to drive the X-axis transmission module 212, the Z-axis transmission module 214 and the engraving module 22 to translate along the Y-axis direction, the X-axis transmission module 212 is used to drive the Z-axis transmission module 214 and the engraving module 22 to translate along the X-axis direction, and the Z-axis transmission module 214 is used to drive the engraving module 22 to translate along the Z-axis direction.

[0035] In some optional embodiments, the Y-axis transmission module 213 includes a Y-axis fixed seat 2131, a Y-axis transmission driving member 2132, a Y-axis main synchronous wheel 2133, a Y-axis slave synchronous wheel 2134, a Y-axis synchronous belt 2135, a Y-axis roller 2136 and a Y-axis moving block, the Y-axis fixed seat 2131 is fixed to the lower end of the inner protective cover 117, the Y-axis transmission driving member 2132 is installed on the Y-axis fixed seat 2131, the Y-axis main synchronous wheel 2133 and the Y-axis slave synchronous wheel 2134 are respectively rotated on the Y-axis At both ends of the fixed seat 2131, the Y-axis main synchronous wheel 2133 is transmission-connected with the Y-axis transmission drive member 2132, the Y-axis synchronous belt 2135 is sleeved on the outer surface of the Y-axis main synchronous wheel 2133 and the Y-axis slave synchronous wheel 2134, the Y-axis moving block is sleeved on the Y-axis synchronous belt 2135 and is fixedly connected with the X-axis transmission module 212, the inner wall of the Y-axis fixed seat 2131 is provided with a Y-axis slide rail 2137, the Y-axis roller 2136 is rollingly arranged on the Y-axis slide rail 2137 and is fixedly connected with the X-axis transmission module 212;

[0036] It should be noted that the Y-axis transmission driver 2132 drives the Y-axis slave synchronous wheel 2134 and the Y-axis synchronous belt 2135 to rotate through the Y-axis main synchronous wheel 2133, thereby driving the X-axis transmission module 212 to translate along the Y-axis direction in the Y-axis slide rail 2137 through the Y-axis moving block and the Y-axis roller 2136.

[0037] In some optional embodiments, the X-axis transmission module 212 includes an X-axis fixed seat 2121, an X-axis transmission drive member 2122, an X-axis main synchronous wheel 2123, an X-axis slave synchronous wheel 2124, an X-axis synchronous belt 2125, an X-axis roller 2126 and an X-axis moving block 2127, the X-axis fixed seat 2121 is fixedly connected to the Y-axis roller 2136 and the Y-axis moving block, the outer surface of the X-axis fixed seat 2121 is covered with a protective shell 2128, the X-axis transmission drive member 2122 is installed on the X-axis fixed seat 2121, the X-axis main synchronous wheel 2123 and the X-axis The slave synchronous wheels 2124 are respectively rotatably arranged at the two ends of the X-axis fixed seat 2121, the X-axis main synchronous wheel 2123 is in transmission connection with the X-axis transmission driving member 2122, the X-axis synchronous belt 2125 is sleeved on the outer surfaces of the X-axis main synchronous wheel 2123 and the X-axis slave synchronous wheel 2124, the X-axis moving block 2127 is sleeved on the X-axis synchronous belt 2125 and is fixedly connected to the Z-axis transmission module 214, the inner wall of the X-axis fixed seat 2121 is provided with an X-axis slide rail 2129, and the X-axis roller 2126 is rotatably arranged on the X-axis slide rail 2129 and is fixedly connected to the Z-axis transmission module 214;

[0038] It should be noted that the X-axis transmission drive 2122 drives the X-axis slave synchronous wheel 2124 and the X-axis synchronous belt 2125 to rotate through the X-axis main synchronous wheel 2123, thereby driving the Z-axis transmission module 214 to translate along the X-axis direction in the X-axis slide rail 2129 through the X-axis moving block 2127 and the X-axis roller 2126.

[0039] In some optional embodiments, the Z-axis transmission module 214 includes a Z-axis fixed seat, a Z-axis transmission driver, a Z-axis main synchronous wheel, a Z-axis slave synchronous wheel, a Z-axis synchronous belt, a Z-axis roller and a Z-axis moving block. The Z-axis fixed seat is fixedly connected to the X-axis roller 2126 and the X-axis moving block 2127. The Z-axis transmission driver is installed on the Z-axis fixed seat. The Z-axis main synchronous wheel and the Z-axis slave synchronous wheel are respectively rotatably arranged at both ends of the Z-axis fixed seat. The Z-axis main synchronous wheel is transmission-connected to the Z-axis transmission driver. The Z-axis synchronous belt sleeve is covered on the outer surfaces of the Z-axis main synchronous wheel and the Z-axis slave synchronous wheel. The Z-axis moving block is sleeved on the Z-axis synchronous belt and fixedly connected to the engraving module 22. The inner wall of the Z-axis fixed seat is provided with a Z-axis slide rail. The Z-axis roller is rollingly arranged on the Z-axis slide rail and fixedly connected to the engraving module 22.

[0040] It should be noted that the Z-axis transmission driver drives the Z-axis slave synchronous wheel and the Z-axis synchronous belt to rotate through the Z-axis main synchronous wheel, thereby driving the engraving module 22 to translate along the Z-axis direction in the Z-axis slide rail through the Z-axis moving block and the Z-axis roller.

[0041] It should be noted that the X-axis transmission module 212, the Y-axis transmission module 213 and the Z-axis transmission module 214 all use built-in slide rails, and the slide rails do not need to be external, thereby utilizing the smallest space to achieve the largest engraving range. Compared with other machines with the same engraving area on the market, the volume is reduced by 1 / 3, the space occupied is reduced, and the space utilization rate is improved.

[0042] In some optional embodiments, the engraving module 22 includes an engraving head 221 and a visual system 222, and the visual system 222 is disposed inside the engraving head 221;

[0043] It should be noted that the visual system 222 is used to locate the object to be engraved, and the engraving head 221 is used to process the object to be engraved. Compared with the laser engraving micromachines previously available on the market, the present application can replace lasers of different powers, while the laser engraving micromachines previously available on the market cannot replace laser heads of other powers in order to adapt to different customer needs and different engraving objects.

[0044] In some optional embodiments, a vent 118 is provided on the rear cover plate 114 and the fixing plate 121 , and a smoke exhaust fan 129 is installed at the vent 118 ;

[0045] It should be noted that the smoke exhaust fan 129 is used to exhaust the smoke generated by the engraving to the outside of the protection mechanism 100 during the engraving process, and the vent 118 is provided with an external card slot to which an external smoke purifier can be connected, further enhancing the safety of the engraving operation.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser engraving machine with good protection performance, characterized in that: It includes a protective mechanism and an engraving mechanism arranged inside the protective mechanism, the protective mechanism includes a protective cover module and a protective cover transmission module, the engraving mechanism includes an engraving transmission module and an engraving module, the protective cover module includes an upper cover plate, a lower bottom plate, a front cover plate and a rear cover plate, an engraving area is formed between the upper cover plate, the lower bottom plate, the front cover plate and the rear cover plate, a limiting slide groove is formed between the upper cover plate and the rear cover plate, the protective cover transmission module is arranged on the inner side of the rear cover plate and is transmission-connected with the front cover plate, the engraving transmission module is arranged on the inner side of the upper cover plate, and the engraving module is arranged at the lower end of the engraving transmission module; wherein, the front cover plate slides up and down or is fixed in the limiting slide groove through the protective cover transmission module, the engraving module moves in the engraving area through the engraving transmission module, the protective mechanism is used to filter the dazzling laser during the engraving process to avoid burning eyes, and the engraving mechanism is used to process the object to be engraved.

2. The laser engraving machine with good protection performance according to claim 1 is characterized in that: The two sides of the rear cover plate are provided with limit plates extending forward, the lower end of the upper cover plate is provided with an inner protective cover adapted to the limit plates, the gap between the inner side of the limit plates and the outer side of the inner protective cover forms the limit sliding groove, and the inner side of the inner protective cover forms a carving transmission area.

3. The laser engraving machine with good protection performance according to claim 2 is characterized in that: The protective cover transmission module comprises a fixed plate, a transmission slide rail, a transmission slider, a tension spring, a transmission roller and a limit device, wherein the fixed plate is covered and fixed on the inner side of the rear cover plate, the transmission slide rail is installed on the outer side of the fixed plate, one side of the transmission slider is slidably arranged on the transmission slide rail, the other side of the transmission slider is fixedly connected to the front cover plate, the transmission roller is rotatably arranged on the transmission slide rail, one end of the tension spring is fixedly connected to the fixed plate, the other end of the tension spring bypasses the transmission roller and is fixedly connected to the front cover plate, and the limit device is arranged on the upper and lower sides of the transmission slide rail; wherein, the front cover plate is opened by The upward thrust of the user and the upward pulling force of the tension spring cause the transmission slider to move upward on the transmission slide rail. When the transmission slider reaches the top, it is fixed by the upward pulling force of the tension spring and the upward suction of the limiting device to prevent the front cover from falling suddenly. The front cover is closed, and the transmission slider is moved downward on the transmission slide rail by the gravity of the front cover. At this time, the tension spring generates an upward pulling force to buffer the front cover. When the transmission slider reaches the bottom, the upward pulling force of the tension spring is offset by the downward suction of the limiting device to prevent the front cover from rising suddenly during the laser engraving process.

4. The laser engraving machine with good protection performance according to claim 3 is characterized in that: The limit device includes an upper limit magnet, a lower limit magnet and a limit switch, the upper limit magnet is located below the transmission roller, the lower limit magnet is located below the upper limit magnet, the limit switch is located at the lower end of the lower limit magnet, the upper limit magnet and the lower limit magnet are used in conjunction with the limit switch respectively, the upper limit magnet is used to limit the transmission slider at the uppermost end of the transmission slide rail, and the lower limit magnet is used to limit the transmission slider at the lowermost end of the transmission slide rail.

5. The laser engraving machine with good protection performance according to claim 2 is characterized in that: The engraving transmission module includes a control panel, an X-axis transmission module, a Y-axis transmission module and a Z-axis transmission module. The control panel and the Y-axis transmission module are fixed to the inner side of the inner protective cover. The X-axis transmission module is arranged below the Y-axis transmission module, the Z-axis transmission module is arranged below the X-axis transmission module, and the engraving module is arranged on the Z-axis transmission module; wherein the Y-axis transmission module is used to drive the X-axis transmission module, the Z-axis transmission module and the engraving module to translate along the Y-axis direction, the X-axis transmission module is used to drive the Z-axis transmission module and the engraving module to translate along the X-axis direction, and the Z-axis transmission module is used to drive the engraving module to translate along the Z-axis direction.

6. The laser engraving machine with good protection performance according to claim 5 is characterized in that: The Y-axis transmission module includes a Y-axis fixed seat, a Y-axis transmission driving member, a Y-axis main synchronous wheel, a Y-axis slave synchronous wheel, a Y-axis synchronous belt, a Y-axis roller and a Y-axis moving block. The Y-axis fixed seat is fixed to the lower end of the inner protective cover, and the Y-axis transmission driving member is installed on the Y-axis fixed seat. The Y-axis main synchronous wheel and the Y-axis slave synchronous wheel are respectively rotatably arranged at the two ends of the Y-axis fixed seat. The Y-axis main synchronous wheel is transmission-connected to the Y-axis transmission driving member, and the Y-axis synchronous belt sleeve is covered on the Y-axis main synchronous wheel and the Y-axis slave synchronous wheel. The outer surface of the synchronous wheel, the Y-axis moving block is sleeved on the Y-axis synchronous belt and is fixedly connected to the X-axis transmission module, the inner wall of the Y-axis fixed seat is provided with a Y-axis slide rail, the Y-axis roller is rotatably arranged on the Y-axis slide rail and is fixedly connected to the X-axis transmission module; wherein, the Y-axis transmission driving member drives the Y-axis slave synchronous wheel and the Y-axis synchronous belt to rotate through the Y-axis main synchronous wheel, thereby driving the X-axis transmission module to translate along the Y-axis direction in the Y-axis slide rail through the Y-axis moving block and the Y-axis roller.

7. The laser engraving machine with good protection performance according to claim 6 is characterized in that: The X-axis transmission module includes an X-axis fixed seat, an X-axis transmission driver, an X-axis main synchronous wheel, an X-axis slave synchronous wheel, an X-axis synchronous belt, an X-axis roller and an X-axis moving block. The X-axis fixed seat is fixedly connected to the Y-axis roller and the Y-axis moving block. The outer surface of the X-axis fixed seat is covered with a protective shell. The X-axis transmission driver is installed on the X-axis fixed seat. The X-axis main synchronous wheel and the X-axis slave synchronous wheel are rotatably arranged at both ends of the X-axis fixed seat respectively. The X-axis main synchronous wheel is transmission-connected to the X-axis transmission driver, and the X-axis synchronous belt sleeve is covered on the X-axis fixed seat. The outer surfaces of the X-axis main synchronous wheel and the X-axis slave synchronous wheel, the X-axis moving block is sleeved on the X-axis synchronous belt and is fixedly connected to the Z-axis transmission module, the inner wall of the X-axis fixed seat is provided with an X-axis slide rail, the X-axis roller is rotatably arranged on the X-axis slide rail and is fixedly connected to the Z-axis transmission module; wherein, the X-axis transmission driving member drives the X-axis slave synchronous wheel and the X-axis synchronous belt to rotate through the X-axis main synchronous wheel, thereby driving the Z-axis transmission module to translate along the X-axis direction in the X-axis slide rail through the X-axis moving block and the X-axis roller.

8. The laser engraving machine with good protection performance according to claim 7, characterized in that: The Z-axis transmission module includes a Z-axis fixed seat, a Z-axis transmission driver, a Z-axis main synchronous wheel, a Z-axis slave synchronous wheel, a Z-axis synchronous belt, a Z-axis roller and a Z-axis moving block. The Z-axis fixed seat is fixedly connected to the X-axis roller and the X-axis moving block. The Z-axis transmission driver is installed on the Z-axis fixed seat. The Z-axis main synchronous wheel and the Z-axis slave synchronous wheel are rotatably arranged at both ends of the Z-axis fixed seat respectively. The Z-axis main synchronous wheel is transmission-connected to the Z-axis transmission driver. The Z-axis synchronous belt sleeve is covered on the Z-axis main synchronous wheel. The outer surface of the Z-axis slave synchronous wheel and the Z-axis slave synchronous wheel, the Z-axis moving block is sleeved on the Z-axis synchronous belt and is fixedly connected to the engraving module, the inner wall of the Z-axis fixed seat is provided with a Z-axis slide rail, the Z-axis roller is rotatably arranged on the Z-axis slide rail and is fixedly connected to the engraving module; wherein, the Z-axis transmission driving member drives the Z-axis slave synchronous wheel and the Z-axis synchronous belt to rotate through the Z-axis main synchronous wheel, thereby driving the engraving module to translate along the Z-axis direction in the Z-axis slide rail through the Z-axis moving block and the Z-axis roller.

9. The laser engraving machine with good protection performance according to claim 8, characterized in that: The engraving module includes an engraving head and a visual system, wherein the visual system is arranged inside the engraving head; wherein the visual system is used to locate the object to be engraved, and the engraving head is used to process the object to be engraved.

10. The laser engraving machine with good protection performance according to claim 3, characterized in that: The rear cover plate and the fixing plate are both provided with ventilation holes, and smoke exhaust fans are installed at the ventilation holes; wherein the smoke exhaust fan is used to exhaust the smoke generated by engraving to the outside of the protective mechanism during the engraving process.

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