CN113787259A

CN113787259A - Laser marking machine

Info

Publication number: CN113787259A
Application number: CN202111076817.3A
Authority: CN
Inventors: 靳坚文; 靳耿南
Original assignee: Shenzhen Jinhuiyuan Investment Co ltd
Current assignee: Shenzhen Jinhuiyuan Investment Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2021-12-14

Abstract

The invention discloses a laser marking machine, which relates to the technical field of laser and comprises a rack and a dust absorption assembly, wherein a connecting frame is arranged at the top of the rack, a scale groove is formed in the surface of the connecting frame, a sliding rail is arranged on one side of the rack, a marking assembly is arranged in the sliding rail, a marking table is arranged on the left side of the top of the rack, and an auxiliary assembly is arranged on the left side of the marking table. According to the invention, through the arrangement of the plurality of components, the limiting and multi-angle marking of tubular products is facilitated, the tubular products do not need to be repeatedly fixed, the marking efficiency is improved, meanwhile, harmful flue gas generated in the marking can be absorbed, the health and safety of operators are ensured, the collected flue gas is guided into the heat dissipation coil pipe through the treatment of the filtering and condensing box, the heat dissipation coil pipe is used for dissipating heat of the equipment host, the functionality of the equipment host is enriched, the positioning component is arranged, the automatic positioning of the products is facilitated, the manual pushing of the positioning of the products is avoided, and the marking accuracy and the safety protection performance of the operators are improved.

Description

Laser marking machine

Technical Field

The invention relates to the technical field of laser, in particular to a laser marking machine.

Background

Laser marking machines (lasermarkingmachines) use laser beams to permanently mark the surfaces of various materials. The marking effect is that deep layer materials are exposed through the evaporation of surface layer materials, so that exquisite patterns, trademarks and characters are carved, and the laser marking machine is mainly divided into a CO2 laser marking machine, a semiconductor laser marking machine, an optical fiber laser marking machine and a YAG laser marking machine, wherein the laser marking machine is mainly applied to occasions requiring more fineness and higher precision and is applied to electronic components, Integrated Circuits (ICs), electricians and electrical appliances, mobile phone communication, hardware products, tool accessories, precision instruments, glasses clocks, jewelry, auto parts, plastic keys, building materials and PVC pipes.

The laser marking machine in the market has the defects that the tubular product is not easy to limit, and the limit is required again when the tubular product is required to be marked for many times.

Disclosure of Invention

The present invention is directed to a laser marking machine, which solves the above problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a laser marking machine, includes frame and dust absorption subassembly, the link is installed at the frame top, just the scale groove has been seted up on the link surface, the slide rail is installed to frame one side, just slide rail internally mounted has the mark subassembly of beating, frame top left side is provided with beats the mark platform, just beat mark platform left side and install auxiliary assembly, auxiliary assembly is including the mount, rotate motor, drive block, CD-ROM drive motor, centre gripping gripper and slipmat, just mount one side and install the rotate motor, it is connected with to rotate the motor output the drive block, just inside the arrangement of drive block has CD-ROM drive motor, the CD-ROM drive motor output is connected with centre gripping gripper, just centre gripping gripper inner wall is connected with the slipmat, dust absorption unit install in inside the mount.

Preferably, beat the mark subassembly and include electric telescopic handle, slider, remove the wheel, beat the mark frame, beat mark head and controller, just the electric telescopic handle output is connected with the slider, install the slider inboard remove the wheel, beat the mark frame install in the slider outer wall, just beat mark frame bottom and be provided with beat the mark head, link right side below is connected with the controller.

Preferably, the moving wheel is elastically and telescopically connected with the sliding block, the moving wheel is attached to the inner portion of the sliding rail, and the electric telescopic rod is electrically connected with the controller.

Preferably, the driving block and the rotating motor are vertically distributed, the maximum rotating angle of the rotating motor is 90 degrees, and the external size of the driving block is smaller than the internal size of the placement frame.

Preferably, the clamping gripper is rotatably connected with the driving block, the maximum rotation angle of the clamping gripper is 360 degrees, and the anti-skid pads are uniformly distributed on the inner wall of the clamping gripper.

Preferably, dust absorption assembly includes the arcuation frame, detains the piece, smoking pipe, hose, fan, filtering condensation case and heat dissipation coil, install the arcuation frame outside detain the piece, just the arcuation frame inner wall is provided with smoking pipe, the smoking pipe other end is connected with the hose, and the hose other end is connected with the fan, the fan opposite side is provided with filtering condensation case, just filtering condensation case other end is connected with heat dissipation coil.

Preferably, the arc-shaped frame is in clamping connection with the placing frame through the buckling blocks, the outer wall of the arc-shaped frame is attached to the inner wall of the placing frame, and the buckling blocks are symmetrically arranged in two relative to the center of the arc-shaped frame.

Preferably, the filtering condenser box is communicated with the radiating coil pipe, the radiating coil pipe is distributed in a shape like a Chinese character 'hui', and the filtering condenser box is fixedly connected with the rack.

Preferably, beat mark platform surface mounting and have a locating component, just locating component includes pillow, small-size push rod, locating piece, return spring, expands piece, elasticity fixture block, rubber pad, press pad and stopper, install the pillow inboard small-size push rod, just the small-size push rod output is connected with the locating piece, the locating piece both sides are all installed return spring, just return spring outside is provided with expand the piece, expand piece one end and be connected with the elasticity fixture block, just the surface bonds and has the rubber pad, press the piece install in the pillow top, stopper fixed connection in beat the mark platform surface.

Preferably, the expansion block is in elastic rotation connection with the positioning block through the return spring, and the expansion block is in clamping connection with the positioning block through the elastic clamping block.

The invention provides a laser marking machine, which has the following beneficial effects: the laser marking machine has the advantages that through the arrangement of the components, limiting and multi-angle marking of tubular products is facilitated, repeated fixing is not needed, marking efficiency of the laser marking machine is improved, harmful smoke generated in marking can be absorbed, health and safety of operators are guaranteed, the collected smoke is guided into the heat dissipation coil pipe through treatment of the filtering and condensing box and used for dissipating heat of a main machine of the laser marking machine, functionality of the laser marking machine is enriched, the laser marking machine is convenient to automatically position the products through the arrangement of the positioning component, manual pushing of the products for positioning is avoided, and marking accuracy and safety protection of the operators are improved;

1. according to the invention, the marking assembly and the connecting frame are matched with each other, so that the sliding block can be pushed to move on the surface of the sliding rail under the driving of the electric telescopic rod, the height of the marking frame and the marking head can be adjusted, the use is convenient, the accuracy of adjustment is improved through the scale groove on the surface of the connecting frame, the sliding friction between the sliding block and the sliding rail is changed into rolling friction through the matching of the moving wheel on the inner side of the sliding block, the smoothness of adjustment can be further improved, and the electric telescopic rod is electrically connected with the controller, so that the electric telescopic rod can be controlled through the controller, and the convenience is improved.

2. According to the invention, the auxiliary assembly and the marking table are matched with each other, so that the driving block can be driven to rotate under the driving of the rotating motor, the product can be conveniently fed and discharged, then the cylindrical product is clamped by the clamping mechanical claw, the condition that the cylindrical product is not easy to position on the marking table is avoided, meanwhile, the product can be driven to rotate under the driving of the driving motor, the product needing multi-surface marking can be self-regulated, the product does not need to be taken down again and then fixed, the marking efficiency is improved, the driving motor and the rotating motor in the auxiliary assembly are both servo motors, the rotation of the driving motor and the rotating motor is controllable, and the marking accuracy is improved.

3. The dust collection assembly is provided with the arc-shaped frame which is clamped inside the placement frame through the buckling block, so that the assembly and disassembly processes of the dust collection assembly are facilitated, harmful smoke generated in the marking process can be sucked away under the driving of the fan, the injury to operators is reduced, the dust collection assembly is conveyed into the filtering and condensing box through the hose, the filtering and condensing box is internally provided with a plurality of layers of filter cotton and activated carbon fibers which are vertically distributed, the harmful smoke is conveyed into the heat dissipation coil pipe after being filtered layer by layer, the heat dissipation coil pipe is arranged outside a host of the equipment, the harmful smoke can be discharged after being treated, the environmental protection performance of the equipment is improved, meanwhile, the harmful smoke can be continuously sucked through the fan and conveyed into the heat dissipation coil pipe to dissipate heat of the host of the equipment, and the functionality of the equipment is enriched.

4. According to the invention, through the mutual matching arrangement between the marking table and the positioning assembly, two or more than two units of limiting blocks can be fixed on the surface of the marking table through bolts according to the actual field processing condition to limit a product, and the positioning block can be pushed to slide along the surface of the marking table under the driving of the small push rod, so that the product can be pushed and abutted, the automatic positioning is realized, the manual positioning is not needed, the automation performance of the equipment is improved, the high efficiency of the marking work is realized, the friction coefficient between the equipment and the product can be improved by matching with the rubber pad, and the stability of the marking work can be further improved.

5. According to the invention, through the mutual matching arrangement of the positioning block, the return spring and the elastic fixture block, when a product with a larger size needs to be processed and subjected to marking, the pressing block is pressed to be in contact with the elastic fixture block in the positioning block, so that the elastic fixture block is stressed to contract, and the expansion block can be automatically popped out by matching the return spring, thereby being used for a larger driving area and facilitating the positioning work of the expansion block.

Drawings

FIG. 1 is a schematic view of the overall structure of a laser marking machine according to the present invention;

FIG. 2 is a schematic view of a marking frame of the laser marking machine according to the present invention;

FIG. 3 is a schematic view of the internal structure of an auxiliary assembly of the laser marking machine according to the present invention;

FIG. 4 is a schematic view of a partial structure of a dust collection assembly of the laser marking machine of the present invention;

FIG. 5 is a schematic structural diagram of a marking table of a laser marking machine according to the present invention;

fig. 6 is a schematic view of a local structure of a positioning assembly of the laser marking machine of the present invention.

In the figure: 1. a frame; 2. a connecting frame; 3. a scale groove; 4. a slide rail; 5. marking the assembly; 501. an electric telescopic rod; 502. a slider; 503. a moving wheel; 504. marking a frame; 505. marking a head; 506. a controller; 6. marking table; 7. an auxiliary component; 701. a placement frame; 702. a rotation motor; 703. a drive block; 704. a drive motor; 705. clamping the mechanical claw; 706. a non-slip mat; 8. a dust collection assembly; 801. an arc frame; 802. buckling blocks; 803. a smoking pipe; 804. a hose; 805. a fan; 806. a filtering condenser box; 807. a heat-dissipating coil pipe; 9. a positioning assembly; 901. a pillow block; 902. a small push rod; 903. positioning blocks; 904. a return spring; 905. expanding blocks; 906. an elastic clamping block; 907. a rubber pad; 908. a pressing block; 909. and a limiting block.

Detailed Description

Referring to fig. 1-6, the present invention provides a technical solution: a laser marking machine comprises a machine frame 1 and a dust collection assembly 8, wherein a connecting frame 2 is installed at the top of the machine frame 1, a scale groove 3 is formed in the surface of the connecting frame 2, a slide rail 4 is installed on one side of the machine frame 1, a marking assembly 5 is installed inside the slide rail 4, a marking table 6 is arranged on the left side of the top of the machine frame 1, an auxiliary assembly 7 is installed on the left side of the marking table 6, the auxiliary assembly 7 comprises a placing frame 701, a rotating motor 702, a driving block 703, a driving motor 704, a clamping mechanical claw 705 and a non-slip pad 706, the rotating motor 702 is installed on one side of the placing frame 701, the output end of the rotating motor 702 is connected with the driving block 703, the driving motor 704 is installed inside the driving block 703, the output end of the driving motor 704 is connected with the clamping mechanical claw 705, the inner wall of the clamping mechanical claw 705 is connected with the non-slip pad 706, and the dust collection assembly 8 is installed inside the placing frame 701;

referring to fig. 1-2, the marking assembly 5 includes an electric telescopic rod 501, a slider 502, a moving wheel 503, a marking frame 504, a marking head 505 and a controller 506, the output end of the electric telescopic rod 501 is connected with the slider 502, the moving wheel 503 is installed on the inner side of the slider 502, the marking frame 504 is installed on the outer wall of the slider 502, the marking head 505 is arranged at the bottom of the marking frame 504, the controller 506 is connected to the lower portion of the right side of the connecting frame 2, the moving wheel 503 is elastically and telescopically connected with the slider 502, the moving wheel 503 is mutually attached to the inside of the sliding rail 4, and the electric telescopic rod 501 is electrically connected with the controller 506;

the operation is as follows, the marking assembly 5 and the connecting frame 2 are matched with each other, so that the sliding block 502 can be pushed to move on the surface of the sliding rail 4 under the driving of the electric telescopic rod 501, the height of the marking frame 504 and the marking head 505 can be adjusted, the use of the electric telescopic rod is facilitated, the accuracy of adjustment is improved through the scale groove 3 on the surface of the connecting frame 2, the sliding friction between the sliding block 502 and the sliding rail 4 is changed into rolling friction through the matching of the moving wheel 503 on the inner side of the sliding block 502, the smoothness of the adjustment can be improved, and the electric telescopic rod 501 is electrically connected with the controller 506, so that the working state of the electric telescopic rod 501 can be controlled through the controller 506, and the convenience of the electric telescopic rod is improved;

referring to fig. 1 and 3, the driving block 703 and the rotating motor 702 are vertically distributed, the maximum rotating angle of the rotating motor 702 is 90 °, the external dimension of the driving block 703 is smaller than the internal dimension of the placement frame 701, the clamping gripper 705 is rotatably connected with the driving block 703, the maximum rotating angle of the clamping gripper 705 is 360 °, and the anti-skid pads 706 are uniformly distributed on the inner wall of the clamping gripper 705;

the operation is as follows, through the mutual cooperation arrangement between the auxiliary assembly 7 and the marking table 6, when the material needs to be fed, the cylindrical product is vertically placed in the driving block 703 and drives the clamping gripper 705 to clamp and fix the cylindrical product, so that the cylindrical product is prevented from being positioned on the surface of the marking table 6, then, the driving block 703 can be driven by the rotating motor 702 to rotate 90 degrees, so that the product can be arranged right above the marking table 6 in parallel, the process is convenient for loading and unloading the product, and the product can be driven to rotate by the driving motor 704, so that the product can be self-rotatably adjusted when the product needs to be subjected to multi-surface marking, the product does not need to be taken down and then fixed, the marking efficiency is improved, the driving motor 704 and the rotating motor 702 in the auxiliary assembly 7 are both servo motors, and the rotation of the servo motors is controllable, so that the calibration accuracy is improved;

referring to fig. 1 and 4, the dust collection assembly 8 includes an arc frame 801, a fastening block 802, a smoke absorption pipe 803, a hose 804, a fan 805, a filtering condensation box 806 and a heat dissipation coil 807, the fastening block 802 is installed outside the arc frame 801, the smoke absorption pipe 803 is installed on the inner wall of the arc frame 801, the hose 804 is connected to the other end of the smoke absorption pipe 803, the fan 805 is connected to the other end of the hose 804, the filtering condensation box 806 is installed on the other side of the fan 805, the heat dissipation coil 807 is connected to the other end of the filtering condensation box 806, the arc frame 801 is connected with the placement frame 701 in a clamping manner through the fastening block 802, the outer wall of the arc frame 801 is attached to the inner wall of the placement frame 701, two fastening blocks 802 are symmetrically arranged with respect to the center of the arc frame 801, the filtering condensation box 806 is communicated with the heat dissipation coil 807, the heat dissipation coil 807 is distributed in a shape of a Chinese character 'hui', and the filtering condensation box 806 is fixedly connected with the rack 1;

in the following operation, through the arrangement of the dust collection assembly 8, the arc-shaped frame 801 in the dust collection assembly 8 is clamped inside the placing frame 701 through the fastening block 802, so that the assembly and disassembly process is facilitated, the harmful smoke generated in the marking process can be sucked away under the driving of the fan 805, the injury to operators is reduced, and the harmful smoke is conveyed into the filtering and condensing box 806 through the hose 804, the interior of the filtering and condensing box 806 is composed of multiple layers of vertically distributed filter cotton and activated carbon fiber, and after the harmful smoke is filtered layer by layer, the harmful smoke is conveyed to the heat dissipation coil 807, the heat dissipation coil 807 is disposed outside the main unit of the apparatus, so that harmful smoke can be discharged after being treated, the environmental protection performance is improved, meanwhile, the air can be continuously sucked through the fan 805 and conveyed to the heat dissipation coil 807 to dissipate heat of the host machine of the equipment, so that the functionality of the equipment is enriched, and the resource recycling performance is improved.

Referring to fig. 1, 5 and 6, a positioning assembly 9 is mounted on the surface of a marking table 6, the positioning assembly 9 includes a pillow 901, a small push rod 902, a positioning block 903, a return spring 904, an expanding block 905, an elastic clamping block 906, a rubber pad 907, a pressing block 908 and a limiting block 909, the small push rod 902 is mounted on the inner side of the pillow 901, the output end of the small push rod 902 is connected with the positioning block 903, the return spring 904 is mounted on both sides of the positioning block 903, the expanding block 905 is disposed outside the return spring 904, one end of the expanding block 905 is connected with the elastic clamping block 906, the rubber pad 907 is bonded on the outer surface of the expanding block 905, the pressing block 908 is mounted on the top of the pillow 901, the limiting block is fixedly connected to the surface of the marking table 6, the expanding block 905 is elastically and rotatably connected to the positioning block 903 through the return spring 904, and the expanding block 905 is connected to the positioning block 903 in a clamping manner through the elastic clamping block 906;

the specific operation is as follows, through the mutual matching arrangement between the marking table 6 and the positioning component 9, two or more than two units of limiting blocks 909 can be fixed on the surface of the marking table 6 through bolts according to the actual processing conditions on site, the limiting blocks are used for limiting products, the positioning block 903 can be pushed to slide along the surface of the marking table 6 under the driving of the small push rod 902, so that the product can be pushed and abutted, the automatic positioning is realized, the manual positioning is not needed, the automation performance of the equipment is improved, the high efficiency of the marking work is realized, the friction coefficient between the product and the positioning block 903 can be improved by matching with the rubber pad 907, the stability of the marking work can be further improved, the positioning block 903, the return spring 904 and the elastic fixture block 906 are matched, so that when a product with a larger size needs to be processed and marked, the bottom of the pressing block 908 is inclined by pressing the pressing block 908, the elastic fixture block 906 in the positioning block 903 is in contact with the elastic fixture block 906, so that the elastic fixture block 906 is stressed to contract, the expansion block 905 can be automatically popped out by matching with the elastic capacity of the return spring 904, the driving area of a large product is increased, the positioning work of the product is facilitated, and the processing efficiency of the device is improved.

In conclusion, when the laser marking machine is used, firstly, two or more than two units of limiting blocks 909 are fixed on the surface of the marking table 6 through bolts according to the actual field processing condition and are used for limiting a product, then, the product is placed on the surface of the marking table 6, the positioning block 903 can be pushed to slide along the surface of the marking table 6 under the driving of the small push rod 902, so that the product can be pushed and abutted, the automatic positioning is realized, the manual positioning is not needed, the automation performance of the equipment is improved, the high efficiency of the marking work is realized, the friction coefficient between the product and the positioning block 903 can be improved by matching with the rubber pad 907, the stability of the marking work can be improved, and the positioning block 903, the return spring 904 and the elastic fixture block 906 are matched, so that when a product with a larger size needs to be processed and marked, the bottom of the pressing block 908 is inclined, the expansion block 905 can be automatically ejected by matching with the elastic capacity of the return spring 904, so that the expansion block 906 is contracted under stress, the expansion block 905 can be automatically ejected for being used for driving a larger product, the positioning work of the product is facilitated, the processing efficiency of the device is improved, then, the electric telescopic rod 501 is electrically connected with the controller 506 by pressing keys on the surface of the controller 506, the working state of the electric telescopic rod 501 can be controlled by the controller 506, the convenience of the electric telescopic rod is improved, the sliding block 502 can be pushed to move on the surface of the sliding rail 4 under the driving of the electric telescopic rod 501, the heights of the marking frame 504 and the marking head 505 are adjusted, the focusing process of the marking head 505 is realized, the accuracy of adjustment is improved by the scale groove 3 on the surface of the connecting frame 2, and the sliding friction between the sliding block 502 and the sliding rail 4 is changed into rolling friction by matching with the moving wheel 503 on the inner side of the sliding block 502, further, smoothness of the device during adjustment can be improved, finally, marking work is carried out on a product through the marking head 505, the fan 805 is turned on at the moment, harmful smoke generated in the marking process can be sucked away through the smoke absorbing pipe 803 under the driving of the fan 805, injury to operators is reduced, the harmful smoke is conveyed into the filtering and condensing box 806 through the hose 804, the filtering and condensing box 806 is internally composed of multiple layers of filter cotton and activated carbon fibers which are vertically distributed, the harmful smoke is conveyed into the heat dissipation coil 807 after being filtered layer by layer, the heat dissipation coil 807 is arranged outside a host of the device, accordingly, the harmful smoke can be discharged after being treated, the environmental protection performance of the device is improved, meanwhile, the harmful smoke can be continuously sucked through the fan 805 and conveyed into the heat dissipation coil 807 to dissipate heat of the host of the device, the functionality of the device is enriched, and the reutilization of resources is improved, the fume pipe 803 is connected inside the placing frame 701 through the arc-shaped frame 801 and the buckling block 802 in a clamping manner, so that the assembly and disassembly processes of the fume pipe are facilitated, the maintenance and overhaul efficiency of the fume pipe is improved, the auxiliary assembly 7 can be additionally arranged on the surface of the marking table 6, when a cylindrical product needs to be marked, the cylindrical product is vertically placed inside the driving block 703 and drives the clamping mechanical claw 705 to clamp and fix the cylindrical product, the condition that the cylindrical product is not easy to position on the surface of the marking table is avoided, then the driving block 703 can be driven to rotate 90 degrees under the driving of the rotating motor 702, the product can be placed right above the marking table 6 in parallel, the process facilitates the feeding and the blanking before and after the product is marked, meanwhile, the product can be driven to rotate under the driving motor 704, the product can be regulated in a self-rotating manner when the product needs to be marked on multiple sides, the product does not need to be taken down and fixed, and the marking efficiency of the product is improved, the driving motor 704 and the rotating motor 702 in the auxiliary assembly 7 are both servo motors, and the rotation of the servo motors is controllable, so that the calibration accuracy is improved.

Claims

1. The laser marking machine is characterized by comprising a machine frame (1) and a dust collection assembly (8), wherein a connecting frame (2) is installed at the top of the machine frame (1), a scale groove (3) is formed in the surface of the connecting frame (2), a sliding rail (4) is installed on one side of the machine frame (1), a marking assembly (5) is installed inside the sliding rail (4), a marking table (6) is arranged on the left side of the top of the machine frame (1), an auxiliary assembly (7) is installed on the left side of the marking table (6), the auxiliary assembly (7) comprises a placing frame (701), a rotating motor (702), a driving block (703), a driving motor (704), a clamping mechanical claw (705) and an anti-slip pad (706), the rotating motor (702) is installed on one side of the placing frame (701), and the output end of the rotating motor (702) is connected with the driving block (703), the driving motor (704) is arranged inside the driving block (703), the output end of the driving motor (704) is connected with the clamping mechanical claw (705), the inner wall of the clamping mechanical claw (705) is connected with the anti-skid pad (706), and the dust collection assembly (8) is arranged inside the arranging frame (701).

2. The laser marking machine according to claim 1, characterized in that the marking assembly (5) comprises an electric telescopic rod (501), a sliding block (502), a moving wheel (503), a marking frame (504), a marking head (505) and a controller (506), the sliding block (502) is connected to the output end of the electric telescopic rod (501), the moving wheel (503) is installed on the inner side of the sliding block (502), the marking frame (504) is installed on the outer wall of the sliding block (502), the marking head (505) is arranged at the bottom of the marking frame (505), and the controller (506) is connected to the lower right side of the connecting frame (2).

3. The laser marking machine according to claim 2, characterized in that the moving wheel (504) is elastically and telescopically connected with the sliding block (502), the moving wheel (503) is attached to the inside of the sliding rail (4), and the electric telescopic rod (501) is electrically connected with the controller (506).

4. The laser marking machine according to claim 1, characterized in that the driving block (703) is vertically arranged with respect to the rotating motor (702), and the maximum rotation angle of the rotating motor (702) is 90 °, and the outer dimension of the driving block (703) is smaller than the inner dimension of the mounting rack (701).

5. The laser marking machine according to claim 1, characterized in that said gripper (705) is rotatably connected to said drive block (703) and that said gripper (705) has a maximum rotation angle of 360 ° and that said non-slip pads (706) are evenly distributed with respect to the inner wall of said gripper (705).

6. The laser marking machine as claimed in claim 1, characterized in that the dust suction assembly (8) comprises an arc frame (801), a fastening block (802), a smoke suction pipe (803), a hose (804), a fan (805), a filtering condensation box (806) and a heat dissipation coil (807), the fastening block (802) is installed on the outer side of the arc frame (801), the smoke suction pipe (803) is arranged on the inner wall of the arc frame (801), the other end of the smoke suction pipe (803) is connected with the hose (804), the other end of the hose (804) is connected with the fan (805), the filtering condensation box (806) is arranged on the other side of the fan (805), and the heat dissipation coil (807) is connected with the other end of the filtering condensation box (806).

7. The laser marking machine as claimed in claim 6, wherein the arc-shaped frame (801) is connected with the placing frame (701) in a clamping manner through the buckle block (802), the outer wall of the arc-shaped frame (801) is attached to the inner wall of the placing frame (701), and two buckle blocks (802) are symmetrically arranged around the center of the arc-shaped frame (801).

8. The laser marking machine according to claim 6, characterized in that the filtering and condensing box (806) is in communication with the heat dissipation coil (807), the heat dissipation coil (807) is distributed in a shape of Chinese character 'hui', and the filtering and condensing box (806) is fixedly connected with the rack (1).

9. The laser marking machine according to claim 1, characterized in that a positioning assembly (9) is installed on the surface of the marking table (6), the positioning assembly (9) comprises a pillow block (901), a small push rod (902), a positioning block (903), a return spring (904), an expanding block (905), an elastic clamping block (906), a rubber pad (907), a pressing block (908) and a limiting block (909), the small push rod (902) is installed on the inner side of the pillow block (901), the positioning block (903) is connected to the output end of the small push rod (902), the return springs (904) are installed on both sides of the positioning block (903), the expanding block (905) is arranged outside the return spring (904), the elastic clamping block (906) is connected to one end of the expanding block (905), and the rubber pad (907) is bonded to the outer surface, the pressing block (908) is mounted at the top of the pillow block (901), and the limiting block (909) is fixedly connected to the surface of the marking table (6).

10. The laser marking machine according to claim 9, characterized in that the expanding block (905) is elastically and rotatably connected with the positioning block (903) through the return spring (904), and the expanding block (905) is in snap-fit connection with the positioning block (903) through the elastic clamping block (906).