Laser cutting protection device

Abstract

The utility model relates to the technical field of laser cutting, and particularly discloses a laser cutting protection device which comprises a workbench, fixing frames are fixedly connected to the left side and the right side of the workbench, a protection shell located on the outer side of the workbench is placed on the upper end faces of the two fixing frames, and a protection door is installed on the front end face of the protection shell. A perspective window is arranged in the middle of the protective door, two sliding grooves located in the upper side and the lower side of the perspective window are formed in the front end face of the protective door, and baffles slidably connected with the sliding grooves are arranged on the outer side of the perspective window, so that the two mounting frames drive the protective shell to move downwards to sleeve the outer side of the workbench, and then protection can be conducted through the protective shell during cutting; when the cutting progress needs to be checked, the baffle can be pulled leftwards, the perspective window is exposed, chippings are prevented from making contact with workers while the cutting progress is checked conveniently, the perspective window can be shielded through the baffle under the condition that the cutting progress is not checked, and therefore the situation that the eyes of the workers are injured by laser cutting light is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a laser cutting protective device. Background Art

[0002] With the development of modern mechanical processing industry, the requirements for cutting quality and precision are constantly increasing, and the requirements for improving production efficiency, reducing production costs, and having highly intelligent automatic cutting functions are also increasing. The development of CNC cutting machines must adapt to the requirements of the development of modern mechanical processing industry. Cutting machines are divided into flame cutting machines, plasma cutting machines, laser cutting machines, water cutting machines, etc. The plasma cutting machine also has a very fast cutting speed, and the cutting surface has a certain slope. Flame cutting machines are aimed at thicker carbon steel materials.

[0003] Laser cutting is a process that uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby cutting the workpiece. Laser cutting is one of the thermal cutting methods. During the laser cutting process, the high-temperature debris generated will be driven by the high-speed airflow to splash everywhere.

[0004] At present, in the process of laser cutting, some protection is provided for the debris generated by the cutting. However, at the same time, the laser will pass through the transparent window for a long time to cause damage to the eyes of the workers. The transparent window cannot be blocked according to actual needs, and it is not convenient to disassemble and maintain the protective shell. Therefore, it is necessary to propose a laser cutting protection device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a laser cutting protection device, which has the characteristics of providing protection during cutting, facilitating viewing of the cutting progress while preventing debris from coming into contact with workers, and being able to block the perspective window to prevent the laser cutting light from causing eye damage to workers, and secondly facilitating disassembly of the protection shell for maintenance and cleaning.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting protection device, comprising a workbench, a slide is arranged above the workbench, a cylinder is installed on the upper end surface of the slide, the output end of the cylinder passes through and extends to the bottom of the slide and is installed with a cutting head, the left and right sides of the workbench are fixedly connected with fixed frames, the upper end surfaces of the two fixed frames are placed with a protective shell located outside the workbench, the front end surface of the protective shell is installed with a protective door, the middle part of the protective door is provided with a perspective window, the front end surface of the protective door is provided with two slide grooves located on the upper and lower sides of the perspective window, and the outer side of the perspective window is provided with a baffle slidably connected to the slide groove;

[0007] The two opposite sides of the two fixing frames are rotatably connected with a screw rod and fixedly connected with a guide rod. A motor with an output end fixedly connected to the screw rod is installed above the left fixing frame. The outer wall of the screw rod is threadedly connected with a mounting frame slidably connected to the guide rod. Both mounting frames are detachably connected to the protective shell by bolts.

[0008] In order to collect debris, as a preferred laser cutting protection device of the utility model, electrostatic adsorption plates are installed on the left and right sides of the inner wall of the protective shell, and the left and right sides of the inner wall of the protective shell are fixedly connected with a mounting shell located at the lower end surface of the electrostatic adsorption plate, and a debris collection box is inserted into the interior of the mounting shell.

[0009] In order to enable the protective shell to move upward smoothly, as a preferred laser cutting protective device of the utility model, the distance between the opposite sides of the upper end surfaces of the two fixing frames is greater than the length of the protective shell.

[0010] In order to pull the baffle to move, as a preferred laser cutting protection device of the utility model, the front end surfaces of the baffle and the protection door are fixedly connected with pull blocks.

[0011] In order to move the slide, as a preferred laser cutting protection device of the utility model, two fixing plates are installed on the upper end surface of the workbench, and electric guide rails slidably connected to the slide are installed on opposite sides of the two fixing plates.

[0012] In order to control the normal operation of the cylinder, motor, electrostatic adsorption plate and electric guide rail, as a preferred laser cutting protection device of the utility model, a controller is installed on the outer wall of the fixed frame on the right side, and the cylinder, motor, electrostatic adsorption plate and electric guide rail are all electrically connected to the controller.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model firstly enables two mounting frames to drive the protective shell to move downward and cover the outer side of the workbench, and then the protective shell can be used for protection during cutting to prevent flying debris from contacting the staff. When it is necessary to check the cutting progress, the baffle can be pulled to the left to expose the perspective window, so as to facilitate the checking of the cutting progress while preventing the debris from contacting the staff. When not checking, the perspective window can be shielded by the baffle to prevent the laser cutting light from causing damage to the eyes of the staff.

[0015] Secondly, when the protective shell needs to be disassembled, the bolts installed on the mounting frame and the protective shell can be removed, and the protective shell can be disassembled, thereby facilitating maintenance and cleaning of the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is the overall structure diagram of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the protective shell of the utility model;

[0018] Figure 3 This is a structural diagram of the electrostatic adsorption plate of the utility model.

[0019] In the figure: 1. workbench; 2. fixed plate; 201. electric guide rail; 202. slide; 203. cylinder; 204. cutting head; 3. fixed frame; 301. screw; 302. motor; 303. guide rod; 304. mounting frame; 4. protective shell; 401. protective door; 402. perspective window; 403. slide; 404. baffle; 5. electrostatic adsorption plate; 501. mounting shell; 502. collection box; 6. controller. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3 A laser cutting protection device comprises a workbench 1, a slide 202 is arranged above the workbench 1, a cylinder 203 is installed on the upper end surface of the slide 202, an output end of the cylinder 203 penetrates and extends to the bottom of the slide 202 and is installed with a cutting head 204, fixed frames 3 are fixedly connected to the left and right sides of the workbench 1, a protective shell 4 located outside the workbench 1 is placed on the upper end surfaces of the two fixed frames 3, a protective door 401 is installed on the front end surface of the protective shell 4, a perspective window 402 is arranged in the middle of the protective door 401, two slide grooves 403 located on the upper and lower sides of the perspective window 402 are provided on the front end surface of the protective door 401, and a baffle 404 slidably connected to the slide groove 403 is arranged on the outer side of the perspective window 402;

[0021] The two opposite sides of the two fixing frames 3 are rotatably connected with a screw rod 301 and fixedly connected with a guide rod 303, and a motor 302 with an output end fixedly connected to the screw rod 301 is installed above the left fixing frame 3, and the outer wall of the screw rod 301 is threadedly connected with a mounting frame 304 slidably connected to the guide rod 303, and the two mounting frames 304 are detachably connected to the protective shell 4 by bolts.

[0022] In this embodiment: before cutting the workpiece, the motor 302 drives the screw 301 to rotate, so that the two mounting brackets 304 drive the protective shell 4 to move downward and sleeve on the outside of the workbench 1, and at the same time, the lower end surface of the protective shell 4 contacts the fixing bracket 3, and then the protective shell 4 can be used for protection during cutting to prevent the flying debris from contacting the staff. When it is necessary to check the cutting progress, the baffle 404 can be pulled to the left to move the baffle 404 to the left through the slide slot 403 until the perspective window 402 is exposed, so as to facilitate the viewing of the cutting progress while preventing the debris from contacting the staff. When not checking, the perspective window 402 can be blocked by the baffle 404 to prevent the laser cutting light from causing damage to the eyes of the staff.

[0023] Secondly, when the protective shell 4 needs to be disassembled, the mounting frame 304 and the bolts installed on the protective shell 4 can be removed, and the protective shell 4 can be disassembled, thereby facilitating the maintenance and cleaning of the protective shell 4.

[0024] As a technical optimization solution of the utility model, electrostatic adsorption plates 5 are installed on the left and right sides of the inner wall of the protective shell 4, and the left and right sides of the inner wall of the protective shell 4 are fixedly connected with a mounting shell 501 located at the lower end surface of the electrostatic adsorption plate 5, and a miscellaneous box 502 is inserted into the interior of the mounting shell 501.

[0025] In this embodiment, the electrostatic adsorption plate 5 is operated to adsorb the debris generated by cutting onto the surface of the electrostatic adsorption plate 5 , and when the electrostatic adsorption plate 5 is powered off, the debris adhering to the surface of the electrostatic adsorption plate 5 falls into the collection box 502 and is collected.

[0026] As a technical optimization solution of the present invention, the distance between the opposite sides of the upper end surfaces of the two fixing frames 3 is greater than the length of the protective shell 4 .

[0027] In this embodiment, the distance between the opposite sides of the upper end surfaces of the two fixing frames 3 is greater than the length of the protective shell 4, so that the protective shell 4 can be smoothly moved upward.

[0028] As a technical optimization solution of the present invention, the front end surfaces of the baffle plate 404 and the protective door 401 are fixedly connected with pull blocks.

[0029] In this embodiment, the baffle 404 is pulled to move and the protective door 401 is pulled to open the protective door 401 .

[0030] As a technical optimization solution of the utility model, two fixing plates 2 are installed on the upper end surface of the workbench 1, and electric guide rails 201 slidably connected to the slide 202 are installed on opposite sides of the two fixing plates 2.

[0031] In this embodiment, the electric guide rail 201 can drive the slide 202 to move forward and backward, thereby achieving forward and backward cutting.

[0032] As a technical optimization solution of the present invention, a controller 6 is installed on the outer wall of the right fixing frame 3 , and the cylinder 203 , the motor 302 , the electrostatic adsorption plate 5 and the electric guide rail 201 are all electrically connected to the controller 6 .

[0033] In this embodiment, the controller 6 can control the cylinder 203, the motor 302, the electrostatic adsorption plate 5 and the electric guide rail 201 to work normally.

[0034] Working principle: First, connect the device to an external power source, then place the workpiece to be cut on the upper end surface of the workbench 1, then make the cylinder 203 push the cutting head 204 downward and contact it, then make the motor 302 drive the screw 301 to rotate, so that the two mounting frames 304 drive the protective shell 4 to move downward and sleeve on the outside of the workbench 1, and at the same time, the lower end surface of the protective shell 4 contacts the fixing frame 3, and then the protective shell 4 can be used for protection during cutting to prevent the flying debris from contacting the staff, (it is also possible to first move the protective shell 4 to the outside of the workbench 1, and then open the protective door 401 to place the workpiece on the upper end surface of the workbench 1) Secondly, through the electric guide rail 2 01 can drive the slide 202 to move forward and backward to perform cutting work. During the cutting process, the electrostatic adsorption plate 5 is operated to adsorb the debris generated by the cutting to the surface of the electrostatic adsorption plate 5. When the electrostatic adsorption plate 5 is powered off, the debris adhering to the surface of the electrostatic adsorption plate 5 falls into the collection box 502 for collection. When it is necessary to check the cutting progress, the baffle 404 can be pulled to the left to move the baffle 404 to the left through the slide slot 403 until the perspective window 402 is exposed, thereby facilitating the viewing of the cutting progress. When not viewing, the perspective window 402 can be shielded by the baffle 404 to prevent the laser cutting light from causing damage to the eyes of the staff;

[0035] Finally, when the protective shell 4 needs to be disassembled, the mounting frame 304 and the bolts installed on the protective shell 4 can be removed, and the protective shell 4 can be disassembled, thereby facilitating maintenance and cleaning of the protective shell 4.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting protection device, comprising a workbench (1), a slide (202) being arranged above the workbench (1), a cylinder (203) being installed on the upper end surface of the slide (202), an output end of the cylinder (203) passing through and extending to the bottom of the slide (202) and being installed with a cutting head (204), characterized in that: The left and right sides of the workbench (1) are fixedly connected with fixed frames (3), and the upper end surfaces of the two fixed frames (3) are provided with protective shells (4) located outside the workbench (1), and the front end surface of the protective shell (4) is installed with a protective door (401), and the middle part of the protective door (401) is provided with a perspective window (402), and the front end surface of the protective door (401) is provided with two slide grooves (403) located at the upper and lower sides of the perspective window (402), and the outer side of the perspective window (402) is provided with a baffle (404) slidably connected to the slide groove (403); The two opposite sides of the two fixing frames (3) are rotatably connected to a screw rod (301) and fixedly connected to a guide rod (303), respectively; a motor (302) whose output end is fixedly connected to the screw rod (301) is installed above the left fixing frame (3); an outer wall of the screw rod (301) is threadedly connected to a mounting frame (304) slidably connected to the guide rod (303); and both mounting frames (304) are detachably connected to the protective shell (4) by bolts.

2. A laser cutting protection device according to claim 1, characterized in that: Electrostatic adsorption plates (5) are installed on both the left and right sides of the inner wall of the protective shell (4), and installation shells (501) located at the lower end surface of the electrostatic adsorption plates (5) are fixedly connected to both the left and right sides of the inner wall of the protective shell (4), and a sundry box (502) is inserted into the interior of the installation shell (501).

3. The laser cutting protection device according to claim 1, characterized in that: The distance between the opposite sides of the upper end surfaces of the two fixing frames (3) is greater than the length of the protective shell (4).

4. The laser cutting protection device according to claim 1, characterized in that: The front end surfaces of the baffle plate (404) and the protective door (401) are both fixedly connected with pull blocks.

5. The laser cutting protection device according to claim 1, characterized in that: Two fixed plates (2) are installed on the upper end surface of the workbench (1), and electric guide rails (201) slidably connected to the slide frame (202) are installed on opposite sides of the two fixed plates (2).

6. The laser cutting protection device according to claim 1, characterized in that: A controller (6) is installed on the outer wall of the fixing frame (3) on the right side, and the cylinder (203), the motor (302), the electrostatic adsorption plate (5) and the electric guide rail (201) are all electrically connected to the controller (6).

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