Main machine of laser engraving cutting machine

Abstract

The invention relates to the technical field of laser marking, in particular to a laser engraving cutting machine host which comprises a base, a back plate, a back cover, a cover body and a laser module, the back plate is fixed to the base, two sets of protruding plates are formed on the back face of the back plate, middle plates are formed in the middles of the opposite sides of the two sets of protruding plates, and partition plates are fixed between the middle plates and the back plate; a hook plate is fixed on the partition plate and located in the inner cavity, a lifting block connected with the cover body slides in the outer cavity, a guide wheel is arranged on the top of the back plate, and the lifting block is connected with an extension spring. By means of the linkage design of the lifting block and the extension spring, the extension spring bypasses the guide wheel and is fixed to the hook plate, stable tension is formed, it is guaranteed that the cover body cannot rapidly fall off due to gravity in the lifting process, operation safety is improved, working efficiency is improved, an elastic clamping mechanism of the convex block, the reed and the concave block is automatically locked when the cover body is closed, and the cover body is not prone to falling off. And the stability and the safety of the equipment are further enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, in particular to a laser engraving and cutting machine host. Background Art

[0002] As an efficient and precise processing method, laser marking technology is widely used in electronics, machinery, medical, jewelry and other industries. With the development of industrial automation and intelligence, laser marking equipment has higher and higher requirements for accuracy, efficiency and ease of operation.

[0003] The traditional laser engraving and cutting machine has many defects, which are mainly reflected in the following aspects:

[0004] 1. The traditional hood relies on manual lifting. If you let go of the hood during operation, it will fall rapidly due to gravity, which not only affects efficiency but may also cause accidental injuries.

[0005] 2. Usually rely on the operator's experience or use additional measuring tools to manually adjust the lifting of the laser processing head. This method is time-consuming and labor-intensive, and it is difficult to ensure the accuracy and consistency of each adjustment, thus affecting the processing quality:

[0006] 3. During the lifting process of the equipment, the wires in the equipment are easily entangled with each other, forming complex knots, which not only affects the normal operation of the equipment, but may also cause the lifting action to be unsmooth or even stuck, increasing the difficulty of maintenance and the risk of failure;

[0007] 4. The equipment will generate a lot of heat and harmful gases during operation. Especially in high power density application scenarios, the heat dissipation measures in traditional designs are often not sufficient to effectively dissipate this heat, causing the processing head to overheat, affecting the stability and service life of the equipment, and reducing the quality of laser output. Summary of the invention

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser engraving and cutting machine host, comprising a base, a back plate, a back cover, a cover body and a laser module, wherein the back plate is fixed on the base, and two groups of convex plates are formed on the back side, and middle plates are formed in the middle of the two groups of convex plates on the opposite sides, a partition is fixed between the middle plate and the back plate, and the inner and outer sections of the partition are divided into an inner cavity and an outer cavity, a hook plate is fixed on the partition in the inner cavity, a lifting block connected to the cover body slides in the outer cavity, a guide wheel is provided on the top of the back plate, and a tension spring is connected to the lifting block, and the tension spring enters the inner cavity after bypassing the guide wheel and is fixed to the hook plate;

[0009] Two groups of lifting slots are provided on one side of the back plate, and tail plates are formed at the tails of the opposite sides of the two groups of convex plates, a slideway is formed between the tail plate and the back plate, a lifting guide block is slidably arranged in the slideway, a mounting plate is fixed between the two lifting guide blocks, a laser source is mounted on the mounting plate, and a wire harness assembly is mounted between the mounting plate and the lifting guide block, a part of the lifting guide block is located in the lifting slot and a lifting platform is fixed thereto, and one of the convex plates is mounted with a dual-purpose lifting assembly for driving the corresponding lifting guide block to lift and lower;

[0010] A platform is provided on the lifting platform, and a visual camera and two sets of red light indicators are installed at the bottom. The laser module is installed on the platform, and a field mirror on the same axis as the red light indicator is installed at the bottom of the platform.

[0011] Furthermore, a convex block is fixed on the partition, two convex columns are formed on the convex block, and a spring sheet is installed to penetrate the convex columns. A concave block is arranged at the position of the lifting block corresponding to the convex block, and the spring sheet is used to be inserted into the concave block.

[0012] Furthermore, a plurality of first pulleys are installed on the inner side of the lifting block, a guide bar slidably connected to the first pulley is formed on the inner wall of the outer cavity, an outer shell covering the laser module is fixed on the outer side of the lifting platform, and a plurality of side wheels attached to the inner wall of the cover are installed on both sides of the outer shell.

[0013] Furthermore, a heat sink covering the visual camera and the red light indicator and penetrating the field lens is fixed to the bottom of the lifting platform, a glass plate opposite to the visual camera is arranged at the bottom of the heat sink, and the red light indicator is opposite to the heat dissipation hole of the heat sink.

[0014] Furthermore, the lifting platform is provided with a convex-shaped opening, and the two side edges of the top extend and bulge upward, and a flow channel is formed between the lifting platform surface and the table plate, a heat sink located in the flow channel is fixed to the bottom of the table plate, and an exhaust fan opposite to the heat sink is also installed on the lifting platform, a pair of exhaust holes is provided on the back of the outer shell, the front of the back plate is corrugated, and an exhaust port is provided under the back plate, and an exhaust fan covering the exhaust port is installed on the back, a gap is left between the outer shell and the cover body, the back cover is fixed on the base and covers the back of the back plate inside, a heat dissipation mesh is provided on the back cover, and a heat dissipation fan opposite to the heat dissipation mesh is installed inside the laser source.

[0015] Furthermore, the dual-purpose lifting assembly includes a screw device installed in one of the convex plates, the screw of which passes through the corresponding lifting guide block, a bearing mounting seat is installed on one side of the convex plate, a rotating shaft is rotatably connected in the bearing mounting seat, and bevel gears that mesh with each other are fixed on the rotating shaft and the screw.

[0016] Furthermore, a plurality of sets of second pulleys are installed on one side of the lifting guide block, the second pulleys are located in the slideway, and guide optical axes sliding with the second pulleys are fixed on opposite side walls of the slideway.

[0017] Furthermore, the wiring harness assembly includes a V-shaped hinged connecting plate rotatably connected to the back plate, a baffle is formed at the edge of the hinged connecting plate, the bottom and top ends of the hinged connecting plate are rotatably connected to the back plate and the mounting plate respectively, a side block fixed to the lifting platform is formed on one side of the lifting guide block, and an L-shaped plate is fixed on the top of the side block, the protruding end of the L-shaped plate extends above the edge of the side block, baffles are formed on both side edges of the top of the side block, and two groups of U-blocks are fixed on the table top of the lifting platform.

[0018] Furthermore, a plurality of triggers are installed on one of the middle plate and the tail plate, and a paddle is installed on one side of one of the lifting guide blocks.

[0019] Furthermore, two groups of grooves are provided at the bottom of the lifting platform, and a clamping plate is fixed in each groove by a pair of adjusting bolts. Circular holes are provided between the clamping plate and the corresponding groove, and mounting balls are clamped in the circular holes. The top and bottom of the mounting balls are flat, and a stepped hole is provided at an eccentric position thereof. The red light indicator is placed in the corresponding stepped hole and is locked and fixed by a top screw.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] 1. Through the linkage design of the lifting block and the tension spring, the tension spring bypasses the guide wheel and is fixed to the hook plate to form a stable pulling force, ensuring that the cover will not fall rapidly due to gravity during the lifting process, which not only improves the operational safety, but also improves the work efficiency. The elastic snap-fit ​​mechanism of the convex block, spring leaf and concave block automatically locks when the cover is closed, further enhancing the stability and safety of the equipment;

[0022] 2. The screw device and the bevel gear are used to support manual or electric drive to lift the guide block. At the same time, the red light indicator, field lens and visual camera are used to achieve precise lifting and lowering adjustment of the laser module, avoiding the error of traditional manual adjustment, realizing real-time monitoring and error correction of the process, significantly improving the processing accuracy and consistency, and the cooperation between the guide optical axis in the slideway and the second pulley ensures the smoothness of the lifting process;

[0023] 3. The cable harness assembly consisting of a V-shaped hinged connecting plate, a baffle, an L-shaped plate, a baffle and a U-block realizes centralized cable guidance and dynamic follow-up management, avoiding cable entanglement or wear during lifting, further reducing the risk of cable entanglement and equipment failure rate;

[0024] 4. The exhaust fan, the suction fan and the cooling fan operate together. Therefore, the exhaust fan introduces external air through the exhaust hole and the corrugated concave surface of the back plate to dissipate the heat of the heat sink and push the heat into the cover through the flow channel. Then the exhaust fan can discharge the heat and smoke from the cover and the processing process. The outside air enters through the gap between the cover and the shell. At the same time, the cooling fan will also discharge the heat of the laser source, thereby improving the heat dissipation and smoke exhaust effect of the host, and improving the service life and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 The right side three-dimensional schematic diagram without the back cover;

[0027] Figure 3 For the present invention Figure 2 3D schematic diagram of the mid-back plate structure;

[0028] Figure 4 For the present invention Figure 2 A schematic diagram of a front cross-sectional structure;

[0029] Figure 5 For the present invention Figure 2 A schematic diagram of a top-down cross-sectional structure of a ;

[0030] Figure 6 For the present invention Figure 5 The enlarged image at a in the middle;

[0031] Figure 7 For the present invention Figure 4 Schematic diagram of the connection structure of the middle lifting block;

[0032] Figure 8 For the present invention Figure 2 A rear view of the three-dimensional structure without the cover;

[0033] Fig. 9 For the present invention Figure 2 A three-dimensional schematic diagram of the connection structure of the middle screw device;

[0034] Fig.10 For the present invention Fig. 9 A three-dimensional schematic diagram of the connection structure of the middle lifting guide block;

[0035] Fig.11 For the present invention Figure 8 A three-dimensional rear view schematic diagram of the middle shell connection structure;

[0036] Fig.12 For the present invention Fig.11 Schematic diagram of the three-dimensional structure without the outer shell;

[0037] Fig.13 For the present invention Fig.12 A schematic diagram of the structure in a rear upward view without the heat sink;

[0038] Fig.14 For the present invention Fig.13 A three-dimensional schematic diagram of the connection structure of the middle compression plate;

[0039] Fig.15 For the present invention Fig.13 Schematic diagram of the principle.

[0040] In the figure: 1, base; 11, trigger; 2, back plate; 21, convex plate; 22, tail plate; 23, middle plate; 3, back cover; A3, partition; A5, guide wheel; A6, tension spring; A7, lifting block; A8, hook plate;

[0041] A9, first pulley; A10, concave block; A11, convex column; A12, spring leaf; A14, convex block; A18, cover body;

[0042] B23, guide light axis; B3, lifting notch; B5, lifting guide block; B52, second pulley; B53, L-shaped plate; B54, side block; B55, baffle; B6, mounting plate; B7, hinged connecting plate; B8, baffle bar; B9, lifting platform; B91, U block; B10, laser source; B101, cooling fan; B102, cooling mesh; B41, screw device; B43, bevel gear; B45, bearing mounting seat; B46, rotating shaft; C5, exhaust fan; C51, exhaust port; C7, housing; C72, heat sink; C73, field lens; C75, exhaust fan; C76, exhaust hole;

[0043] C77, visual camera; C78, ​​side wheel; C79, red light indicator; C710, clamping plate; C711, mounting ball; C712, laser module; C714, table; C715, adjusting bolt; C716, heat sink. DETAILED DESCRIPTION

[0044] 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.

[0045] See also Figure 1-15A laser engraving and cutting machine host in this embodiment includes a base 1 and a laser module C712. A back plate 2 and a back cover 3 covering the back of the back plate 2 are installed on the base 1. Two groups of convex plates 21 are formed on the back of the back plate 2. Middle plates 23 are formed in the middle of the opposite sides of the two groups of convex plates 21. A cavity is formed on the side opposite to the back plate 2. A partition A3 is fixed in the cavity. The partition A3 divides the cavity into an outer cavity and an inner cavity. A hook plate A8 is fixed on one side of the bottom of the partition A3 located in the inner cavity. A lifting block A7 slides in the outer cavity. A cover body A18 is fixed between the two lifting blocks A7. A handle is fixed on the outer side of the cover body A18. A guide wheel A5 is installed on the top of the back plate 2 above the partition A3. A tension spring A6 is connected to the top of the lifting block A7. The tension spring A6 is a soft spring. The tension spring A6 enters the inner cavity after bypassing the guide wheel A5 and is fixed to the hook plate A8.

[0046] In the above structure, the cover body is moved by the handle, and the cover body will drive the lifting block to rise and fall in the outer cavity. The outer cavity can limit the lifting block, thereby improving the stability of the cover body's lifting and lowering. The tension spring can provide pulling force for the movement of the lifting block. At the same time, the guide wheel can also guide the movement of the tension member to ensure that the tension spring always moves along a predetermined path, further enhancing the stability of the lifting movement. The hook plate provides a stable support point for the tension spring. Through the tension spring, it can help overcome the weight of the lifting block, slow down the descent speed, and make the cover body hover at the highest point.

[0047] Among them, two pairs of first pulleys A9 are installed on the side of the lifting block A7 opposite to the partition A3, and a guide bar slidably connected to the first pulley A9 is formed on the inner wall of the outer cavity. The laser module C712 is fixed on the lifting platform B9, and the outer side of the lifting platform B9 is fixed with a shell C7 that covers the laser module C712 inside. A pair of side wheels C78 that are attached to the inner wall of the cover body A18 are installed on both sides of the shell C7. The sliding cooperation between the first pulley and the guide bar, and the sliding cooperation between the side wheel and the cover body can further improve the stability and smoothness of the lifting and sliding of the cover body, and the shell can also play a protective role for the laser module.

[0048] In addition, a concave block A10 is fixed on the side of the lifting block A7 opposite to the partition A3, and a convex block A14 is fixed on the side of the partition A3 opposite to the concave block A10. Two convex columns A11 are formed on the convex block A14, and a spring A12 that can be inserted into the concave block A10 is fixed on the convex block A14. The spring A12 and the convex column A11 are inserted. In the initial state, the cover body is lifted up and suspended in the air by the tension spring. When the cover body moves down, the lifting block and the concave block move at the same time. When the concave block and the convex block are close to each other, the spring will be squeezed to deform the spring, and then separated from the concave block, so that the spring is inserted into the concave block, which can limit the concave block and prevent the cover body from moving. The convex column is used as a fixed component and a stable connection is achieved by inserting with the spring.

[0049] like Figure 2 and 9 Two groups of lifting slots B3 are provided on the back plate 2, and tail plates 22 are formed at the tails of the opposite sides of the two groups of convex plates 21. Slideways are formed between the two tail plates 22 and the back plate 2, and lifting guide blocks B5 are slidably provided in the slideways. A mounting plate B6 attached to the back plate 2 is fixed between the two lifting guide blocks B5, and a laser source B10 is installed on the mounting plate B6. A wiring harness assembly is installed between the mounting plate and the back plate 2 and on the lifting guide block B5. A part of the lifting guide block B5 is located in the lifting slot B3 and is fixed with a lifting platform B9. A dual-purpose lifting assembly for driving the corresponding lifting guide block B5 to rise and fall is installed on the convex plate 21 on the right. The wiring harness of the equipment will be placed centrally in the wiring harness assembly to fix the wiring harness, and then the dual-use lifting assembly will automatically drive one of the lifting guide blocks to move up and down. Under the linkage of the mounting plate, the other lifting guide block will follow the movement, thereby driving the lifting platform to move up and down in the lifting slot. At the same time, when the lifting platform reaches a certain height, it can also be driven by manual operation to make fine adjustments, thereby improving the accuracy of the lifting platform adjustment. At the same time, when the mounting plate drives the laser source to rise and fall, the wiring harness assembly can prevent the friction between the line and the internal structure from causing damage and affecting the use of subsequent devices.

[0050] Among them, four sets of second pulleys B52 are installed on the opposite sides of the two lifting guide blocks B5, and the second pulleys B52 are located in the slideway. The guide optical axes B23 that slide with the second pulleys B52 are fixed on the opposite side walls of the slideway. The guide optical axes can limit the second pulleys to prevent the lifting guide blocks from deviating during the lifting process, causing unstable lifting, thereby effectively improving the stability of the lifting process.

[0051] in Fig. 9 The dual-purpose lifting assembly includes a screw device B41 installed in the right convex plate 21, the screw of which penetrates the corresponding lifting guide block B5, and the nut on the screw is fixed to the lifting guide block B5. A bearing mounting seat B45 is installed on the right side of the convex plate 21, and a rotating shaft B46 is rotatably connected in the bearing mounting seat B45. The rotating shaft B46 and the screw are fixed with mutually meshing bevel gears B43. Through the operation of the screw device, the lifting guide block is located in the concave surface and can play a limiting role. Therefore, the nut rises and falls on the screw, and at the same time, it will drive the corresponding lifting guide block to move up and down. Then, with the cooperation of the mounting plate, the lifting guide block on the other side follows the movement to complete the automatic lifting adjustment of the lifting platform. After adjusting the specified position, the accuracy of the automatic lifting adjustment will have a slight error. Therefore, the corresponding bevel gear is driven to rotate through the rotating shaft, and the screw is driven to rotate by cooperating with another bevel gear to complete the fine adjustment of the lifting platform to make the stop position more accurate.

[0052] like Fig.11 , 13and 15, a table plate C714 is fixed on the top of the lifting platform B9, and a field lens C73 penetrating the lifting platform B9 is installed at the center of the bottom, as well as a visual camera C77 and two groups of red light indicators C79. The field lens C73 is located between the two groups of red light indicators C79 and are located on the same axis. The visual camera C77 is located between the two groups of red light indicators C79 and is on the same axis with the field lens C73. The laser module C712 is installed on the table plate C714.

[0053] Combination Fig.15 As shown, two red light indicators are evenly distributed on both sides of the field lens, the center axis of the field lens and the axes of the fixing holes of the two red light indicators are located on the same longitudinal section XY, the light spots of the two red light indicators are corrected to coincide with the center axis of the field lens and are within the focal plane of the field lens before leaving the factory, and are set on the longitudinal section XY, the vertical distances between the light exit holes a and a' of the two red light indicators and the center b of the field lens are A and A', the distance from the center b of the field lens to the focus c of the field lens is B, and the distances between the light exit holes a and a' and the focus c of the field lens are The distance between the two red light indicators is C and C'. On the longitudinal section XY, points a, b, c and points a', b, c form a right triangle abc and a'bc. Assuming that a piece of processing material is placed on the base, the distance between the two red light indicator spots falling on the material surface is d, then the distance that the dual-use lifting assembly drives the field mirror to move is: Let the field mirror moving distance be e. In the triangle abc, the side lengths A, B, C are known, and the corresponding angles α, β, γ are also known. According to the trigonometric function formula, it can be deduced that The visual camera captures the distance between the light spots on the material surface. The software system uses a formula to calculate the distance moved. The system converts the number of square wave pulses required to move this distance. Assuming the lead of the trapezoidal screw is P and the step angle of the motor is f, the number of pulses required to move the distance e is By sending pulses accurately through the control system, the motor drives the trapezoidal lead screw to rotate, driving the lifting platform to move, ensuring that the field mirror reaches the predetermined position accurately and achieves high-precision focusing. The visual camera captures the changes in the light spot in real time, and the feedback system is adjusted to ensure processing accuracy.

[0054] The bottom of the lifting platform B9 is fixed with a heat sink C72 that covers the visual camera C77 and the red light indicator C79 and is provided with the field lens C73. The bottom of the heat sink C72 is provided with a glass plate opposite to the visual camera C77. The red light indicator C79 is opposite to the heat dissipation hole of the heat sink C72. The heat sink and the glass plate can play a protective role without hindering the red light indicator and the visual camera.

[0055] As shown in 13-14, two groups of grooves are provided at the bottom of the lifting platform B9, and a clamping plate C710 is fixed in each groove by a pair of adjusting bolts C715. Circular holes of the same diameter are provided between the clamping plate C710 and the corresponding grooves, and a mounting ball C711 is clamped between the corresponding circular holes. The diameter of the mounting ball C711 is larger than the diameter of the circular hole. The top and bottom of the mounting ball C711 are both flat, and a stepped hole is provided at the eccentric position of the top. The red light indicator C79 is placed in the corresponding stepped hole and is locked and fixed by a top screw. First, the red light indicator can be locked and fixed through the mounting hole, and then when the adjusting screw is in a state without locking the clamping plate, the mounting ball can be rotated and adjusted in the circular hole, thereby adjusting the overlap of the light spot of the red light indicator and the field lens, which plays a role in correcting the position. After being locked and fixed by the adjusting bolt, and by turning the adjusting bolts on different sides, the mounting ball can also be fine-tuned.

[0056] like Figure 2 , 9 and 10, the wiring harness assembly includes a hinged connecting plate B7 rotatably connected to the back side of the back plate 2 in a V-shape, a baffle B8 is formed at the edge of the hinged connecting plate B7, a wiring harness path is formed between two sets of opposite baffles B8, one end of the bottom and one end of the hinged connecting plate B7 are rotatably connected to the back plate 2 and the mounting plate B6 respectively, a side block B54 fixed to the lifting platform B9 is formed on the opposite side of the two lifting guide blocks B5, and an L-shaped plate B53 is fixed on the top of the side block B54, the protruding end of the L-shaped plate B53 extends to above the edge of the side block B54, baffles B55 are formed on both side edges of the top of the side block B54, and two sets of U-blocks B91 are fixed on the table top of the lifting platform B9. The wiring is bundled through the cooperation of the hinged connecting plate and the baffle, and the opening and closing of the same time can prevent the friction between the line and the internal structure from causing damage and affecting the use of subsequent devices. At the same time, the wiring harness passes through the passage formed by the L-shaped plate and the baffle, and extends to the inside of the U block through the lifting slot, thereby guiding the internal wiring harness and preventing the wires from being entangled and stuck.

[0057] like Figure 2 A set of triggers 11 that can be attached to the lifting block A7 are installed at the bottom of the left middle plate 23, two triggers 11 are installed on the front of the right tail plate 22, and a paddle located between the two sets of triggers 11 on the tail plate 22 is fixed on the front of the right lifting guide block B5. When the cover is closed, the lifting block will squeeze the corresponding trigger, and when the trigger is triggered, the power can be turned on. At the same time, during the lifting and lowering process of the lifting guide block, the paddle will be driven to squeeze the corresponding trigger, thereby judging the highest and lowest positions of the lifting platform.

[0058] As shown in 1, 2, 8, 11 and 12, the lifting platform B9 is provided with a convex-shaped opening, and the two side edges of the top extend and bulge upward, and a flow channel is formed between the table top of the lifting platform B9 and the table plate C714, and a heat sink C716 located in the flow channel is fixed to the bottom of the table plate C714. Two groups of exhaust fans C75 opposite to the heat sink C716 are also installed on the lifting platform B9, and a pair of exhaust holes C76 opposite to the exhaust fans C75 are opened on the back of the outer shell C7. The front of the back plate 2 is corrugated, and an exhaust port C51 is opened under the back plate 2, and an exhaust fan C5 covering the exhaust port C51 is installed on the back, the exhaust fan C5 is penetrated by the back cover 3, and a gap is left between the outer shell C7 and the cover body A18, and a heat dissipation mesh B102 is opened on the back cover 3, and a heat dissipation fan B101 opposite to the heat dissipation mesh B102 is installed inside the laser source B10. When the equipment is running, the cooling fan, exhaust fan and exhaust fan in the host run synchronously. At the same time, the heat sink will absorb the heat of the laser module on the table. The exhaust fan takes in air through the corrugated grooves on the back plate. The air enters through the exhaust holes to dissipate the heat of the heat sink and replace the heat in the outer shell. The heat will pass through the flow channel and the heat sink into the cover, thereby preventing the rise of harmful gases in the processing process. Then the exhaust fan dissipates the heat and smoke in the cover through the exhaust port, which plays a role in heat dissipation and smoke exhaust. The cooling fan will also discharge the heat of the laser source through the heat dissipation mesh, thereby improving the overall heat dissipation effect of the host.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser engraving and cutting machine host, comprising a base (1), a back plate (2), a back cover (3), a cover body (A18) and a laser module (C712), characterized in that: The back plate (2) is fixed on the base (1), and two groups of convex plates (21) are formed on the back side, and a middle plate (23) is formed in the middle of the opposite sides of the two groups of convex plates (21), and a partition plate (A3) is fixed between the middle plate (23) and the back plate (2), and the inner and outer areas of the partition plate (A3) are divided into an inner cavity and an outer cavity, and a hook plate (A8) is fixed on the partition plate (A3) in the inner cavity, and a lifting block (A7) connected to the cover body (A18) slides in the outer cavity, and a guide wheel (A5) is provided on the top of the back plate (2), and the lifting block (A7) is connected to a tension spring (A6), and the tension spring (A6) bypasses the guide wheel (A5) and then enters the inner cavity and is fixed to the hook plate (A8); Two groups of lifting slots (B3) are provided on one side of the back plate (2), and tail plates (22) are formed at the tails of the two groups of convex plates (21) on the opposite sides. A slideway is formed between the tail plate (22) and the back plate (2), and a lifting guide block (B5) is slidably provided in the slideway. A mounting plate (B6) is fixed between the two lifting guide blocks (B5), a laser source (B10) is installed on the mounting plate (B6), and a wire harness assembly is installed between the mounting plate (B6) and the lifting guide block (B5). A part of the lifting guide block (B5) is located in the lifting slot (B3) and is fixed with a lifting platform (B9), and one of the convex plates (21) is installed with a dual-purpose lifting assembly for driving the corresponding lifting guide block (B5) to lift. A platform (C714) is provided on the lifting platform (B9), and a visual camera (C77) and two sets of red light indicators (C79) are installed at the bottom. The laser module (C712) is installed on the platform (C714), and a field lens (C73) on the same axis as the red light indicator (C79) is installed at the bottom of the platform (C714).

2. The laser engraving and cutting machine host according to claim 1, characterized in that: A convex block (A14) is also fixed on the partition (A3), two convex columns (A11) are formed on the convex block (A14), and a spring sheet (A12) is installed to penetrate the convex columns (A11), and a concave block (A10) is arranged on the lifting block (A7) at a position corresponding to the convex block (A14), and the spring sheet (A12) is used to be inserted into the concave block (A10).

3. The laser engraving and cutting machine host according to claim 2, characterized in that: A plurality of first pulleys (A9) are installed on the inner side of the lifting block (A7); a guide bar slidably connected to the first pulley (A9) is formed on the inner wall of the outer cavity; an outer shell (C7) for covering the laser module (C712) is fixed on the outer side of the lifting platform (B9); and a plurality of side wheels (C78) abutting against the inner wall of the cover body (A18) are installed on both sides of the outer shell (C7).

4. The laser engraving and cutting machine host according to claim 3, characterized in that: A heat sink (C72) covering the visual camera (C77) and the red light indicator (C79) and penetrating the field lens (C73) is fixed at the bottom of the lifting platform (B9); a glass plate opposite to the visual camera (C77) is arranged at the bottom of the heat sink (C72); and the red light indicator (C79) is opposite to the heat dissipation hole of the heat sink (C72).

5. The laser engraving and cutting machine host according to claim 4, characterized in that: The lifting platform (B9) is provided with a convex-shaped opening, and the two side edges of the top extend upwardly and bulge, and a flow channel is formed between the lifting platform (B9) table top and the table plate (C714), a heat sink (C716) located in the flow channel is fixed at the bottom of the table plate (C714), and an exhaust fan (C75) opposite to the heat sink (C716) is also installed on the lifting platform (B9), a pair of exhaust holes (C76) are provided on the back of the shell (C7), and the front of the back plate (2) is corrugated The back plate (2) is shaped like a laser beam, and an exhaust port (C51) is provided below the back plate (2), and an exhaust fan (C5) covering the exhaust port (C51) is installed on the back side, a gap is left between the outer shell (C7) and the cover body (A18), the back cover (3) is fixed on the base (1) and covers the back side of the back plate (2) inside, a heat dissipation mesh hole (B102) is provided on the back cover (3), and a heat dissipation fan (B101) opposite to the heat dissipation mesh hole (B102) is installed inside the laser source (B10).

6. The laser engraving and cutting machine host according to claim 1, characterized in that: The dual-purpose lifting assembly comprises a screw device (B41) installed in one of the convex plates (21), wherein the screw penetrates into the corresponding lifting guide block (B5), a bearing mounting seat (B45) is installed on one side of the convex plate (21), a rotating shaft (B46) is rotatably connected in the bearing mounting seat (B45), and mutually meshing bevel gears (B43) are fixed on the rotating shaft (B46) and the screw.

7. The laser engraving and cutting machine host according to claim 6, characterized in that: A plurality of groups of second pulleys (B52) are installed on one side of the lifting guide block (5), the second pulleys (B52) are located in a slideway, and guide optical axes (B23) sliding with the second pulleys (B52) are fixed on opposite side walls of the slideway.

8. The laser engraving and cutting machine host according to claim 1, characterized in that: The harness assembly comprises a V-shaped hinged connecting plate (B7) rotatably connected to the back plate (2), a baffle (B8) being formed at the edge of the hinged connecting plate (B7), the bottom and top of the hinged connecting plate (B7) being rotatably connected to the back plate (2) and the mounting plate (B6) respectively, a side block (B54) fixed to the lifting platform (B9) being formed on one side of the lifting guide block (B5), an L-shaped plate (B53) being fixed on the top of the side block (B54), the protruding end of the L-shaped plate (B53) extending to above the edge of the side block (B54), baffles (B55) being formed on both side edges of the top of the side block (B54), and two groups of U blocks (B91) being fixed on the table top of the lifting platform (B9).

9. The laser engraving and cutting machine host according to claim 1, characterized in that: A plurality of triggers (11) are installed on one of the middle plates (23) and the tail plate (22), and a paddle is installed on one side of one of the lifting guide blocks (B5).

10. The laser engraving and cutting machine host according to claim 1, characterized in that: Two groups of grooves are provided at the bottom of the lifting platform (B9), and a clamping plate (C710) is fixed in each groove by a pair of adjusting bolts (C715). A circular hole is provided between the clamping plate (C710) and the corresponding groove, and a mounting ball (C711) is clamped in the circular hole. The top and bottom of the mounting ball (C711) are both flat, and a stepped hole is provided at an eccentric position thereof. The red light indicator (C79) is placed in the corresponding stepped hole and is locked and fixed by a top screw.

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