CN214024120U

CN214024120U - Collision protection device for optical fiber laser cutting machine

Info

Publication number: CN214024120U
Application number: CN202023077741.XU
Authority: CN
Inventors: 李文峰; 张雷; 朱忠华
Original assignee: He Beam Optoelectronics Wuhan Co ltd
Current assignee: He Beam Optoelectronics Wuhan Co ltd
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-08-24
Anticipated expiration: 2030-12-19

Abstract

The utility model discloses a collision protection device for an optical fiber laser cutting machine, which comprises a workbench, wherein a bracket is fixedly arranged on the upper surface of the workbench, a hydraulic cylinder is fixedly connected on the top of the bracket, the output rod end of the hydraulic cylinder penetrates through and extends into the bracket, a fixed plate is fixedly connected with the output rod end of the hydraulic cylinder, an optical fiber laser is fixedly connected on the lower surface of the fixed plate, vibration sensors are fixedly connected on both sides of the fixed plate, a control switch is fixedly arranged on one side of the lower surface of the workbench, the hydraulic cylinder, the vibration sensors and the control switch are electrically connected, the hydraulic cylinder, the optical fiber laser and the vibration sensors are matched for use, when the hydraulic cylinder drives the optical fiber laser to descend for cutting, when collision vibration occurs, the vibration sensors send signals to the control switch, the hydraulic cylinder of the switch is controlled to stop working, so that the machine can be stopped immediately, and the damage is reduced.

Description

Collision protection device for optical fiber laser cutting machine

Technical Field

The utility model relates to a cutting machine technical field specifically is a collision protection device for optic fibre laser cutting machine.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach a melting point or a boiling point, and simultaneously, the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. And finally, the material is cut along with the movement of the relative position of the light beam and the workpiece, so that the cutting purpose is achieved.

The laser cutting processing is to replace the traditional mechanical knife by invisible light beams, has the characteristics of high precision, quick cutting, no limitation on cutting patterns, automatic typesetting, material saving, smooth cut, low processing cost and the like, and can gradually improve or replace the traditional metal cutting process equipment. The fiber laser cutter is a laser cutter using a fiber laser generator as a light source. However, due to the high precision of the optical fiber laser cutting machine, the optical fiber laser cutting machine is very sensitive to vibration, the precision of the optical fiber laser cutting machine is reduced even the machine itself is damaged due to small collision, the structure of the existing anti-collision protection device is complex, the cost is high, the popularization and the application are difficult, and when the existing optical fiber laser cutting machine cuts a workpiece, the stability of a mechanism for fixing the workpiece is poor, and the cutting precision is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collision protection device for optic fibre laser cutting machine uses through setting up control switch, pneumatic cylinder, fiber laser and vibrations sensor cooperation, when the pneumatic cylinder drove the decline of fiber laser and cuts, when the condition that the collision vibrations take place, vibrations sensing gives control switch with signal transmission, and the control switch pneumatic cylinder stop work can be shut down immediately, reduces the harm and takes place to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a collision protection device for an optical fiber laser cutting machine comprises a workbench, wherein a support is fixedly arranged on the upper surface of the workbench, a hydraulic cylinder is fixedly connected to the top of the support, an output rod end of the hydraulic cylinder penetrates through and extends into the support, a fixing plate is fixedly connected to the output rod end of the hydraulic cylinder, an optical fiber laser is fixedly connected to the lower surface of the fixing plate, vibration sensors are fixedly connected to two sides of the fixing plate, a control switch is fixedly arranged on one side of the lower surface of the workbench, the hydraulic cylinder, the vibration sensors and the control switch are electrically connected, an electric push rod is fixedly arranged on one side of the upper surface of the workbench, a rack is fixedly connected to the output rod end of the electric push rod, the rack is slidably connected to the workbench, a second clamping plate is fixedly connected to one end of the rack, which is far away from the electric push rod, and gears are rotatably connected to two sides of the rack on the upper surface of the workbench, the gear and the rack are meshed with each other, one side of the upper surface of the workbench, which is positioned on two sets of gears, is rotatably connected with a sector gear, and the sector gear is meshed with the two sets of gears and is fixedly connected with a first clamping plate on one side of the sector gear.

Preferably, the upper surface of the top of the bracket is fixedly provided with an alarm, and the alarm, the vibration sensor and the control switch are electrically connected.

Preferably, the bottom of the rack is fixedly connected with a sliding block, a sliding groove is formed in the middle position of the upper surface of the workbench, and the sliding block is connected in the sliding groove in a sliding mode.

Preferably, the upper surface of the workbench is provided with first fixing columns which are fixedly arranged on two sides of the rack, the first fixing columns are of cylindrical structures, and the gears are respectively and fixedly sleeved on the two first fixing columns.

Preferably, the upper surface of the workbench is fixedly connected with second fixing columns on one sides of the two groups of gears, and the two groups of sector gears are respectively and fixedly sleeved on the two groups of second fixing columns.

Preferably, two sets of equal fixedly connected with push rod in sector gear one side, two sets of equal fixedly connected with supporting rod in push rod one end, two sets of first grip blocks are fixed mounting respectively in two sets of supporting rod one end.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up control switch, pneumatic cylinder, fiber laser and vibrations sensor cooperation and use, when the pneumatic cylinder drove the descending of fiber laser and cut, when there is the condition that collision vibrations take place, the vibrations sensing sends signal to control switch, and the control switch pneumatic cylinder stops working, can shut down immediately, reduces the harm and takes place;

2. through setting up electric putter, rack, gear, sector gear, first grip block and second grip block cooperation and using, it is better to the centre gripping stability of work piece, has improved cutting accuracy.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the workbench of the present invention from above;

fig. 4 is a schematic structural view of the bracket of the present invention viewed from above.

In the figure: 1. a work table; 101. a chute; 2. a support; 3. a hydraulic cylinder; 4. a fixing plate; 5. a shock sensor; 6. a fiber laser; 7. an alarm; 8. a control switch; 9. an electric push rod; 10. a rack; 1001. a slider; 11. a gear; 12. a first fixed column; 13. a sector gear; 14. a second fixed column; 15. a push rod; 16. a clamping rod; 17. a first clamping plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a collision protection device for an optical fiber laser cutting machine comprises a workbench 1, a support 2 is fixedly arranged on the upper surface of the workbench 1, a hydraulic cylinder 3 is fixedly connected to the top of the support 2, an output rod end of the hydraulic cylinder 3 penetrates through and extends into the support 2, a fixing plate 4 is fixedly connected to the output rod end of the hydraulic cylinder 3, an optical fiber laser 6 is fixedly connected to the lower surface of the fixing plate 4, vibration sensors 5 are fixedly connected to two sides of the fixing plate 4, the type of each vibration sensor 5 is LIS2DHTR, a control switch 8 is fixedly arranged on one side of the lower surface of the workbench 1, the type of the control switch 8 is ITV1050, the hydraulic cylinder 3, the vibration sensors 5 and the control switch 8 are electrically connected, an alarm 7 is fixedly arranged on the upper surface of the top of the support 2, the type of the alarm 7 is SMD, a series buzzer, the alarm 7, the vibration sensors 5 and the control switch 8 are electrically connected, and the alarm 7 is used for alarm indication, prompting the staff for the occurrence of the situation; when collision happens, the vibration sensor 5 senses the occurrence of vibration and immediately sends a signal to the control switch 8, the control switch 8 sends a signal to stop the work of the hydraulic cylinder 3 and the optical fiber laser 6, the optical fiber laser 6 is prevented from being damaged or the laser emission direction is deviated, so that cutting errors are avoided, meanwhile, the control alarm 7 gives an alarm, the machine can be stopped immediately, and the occurrence of damage is reduced;

an electric push rod 9 is fixedly installed on one side of the upper surface of a workbench 1, a rack 10 is fixedly connected to an output rod end of the electric push rod 9, the rack 10 is connected to the workbench 1 in a sliding mode, one end, far away from the electric push rod 9, of the rack 10 is fixedly connected with a second clamping plate 18, gears 11 are rotatably connected to two sides, located on the rack 10, of the upper surface of the workbench 1, a sliding block 1001 is fixedly connected to the bottom of the rack 10, a sliding groove 101 is formed in the middle of the upper surface of the workbench 1, the sliding block 1001 is connected to the sliding groove 101 in a sliding mode, and a structure with the sliding groove 101 matched with the sliding block 1001 is arranged, so that the sliding block 1001 can slide more smoothly;

the two groups of gears 11 are mutually meshed with the rack 10, the sector gears 13 are rotatably connected to one side, located on the two groups of gears 11, of the upper surface of the workbench 1, first fixing columns 12 are fixedly mounted on the two sides, located on the rack 10, of the upper surface of the workbench 1, the two groups of first fixing columns 12 are arranged in a cylindrical structure, the two groups of gears 11 are respectively fixedly sleeved on the two groups of first fixing columns 12, and the two groups of first fixing columns 12 are arranged to enable the two groups of gears 11 to rotate more stably; the two groups of sector gears 13 are meshed with the two groups of gears 11, one sides of the two groups of sector gears 13 are fixedly connected with a first clamping plate 17, the upper surface of the workbench 1, which is positioned on one side of the two groups of gears 11, is fixedly connected with second fixing columns 14, the two groups of sector gears 13 are respectively and fixedly sleeved on the two groups of second fixing columns 14, and the two groups of second fixing columns 14 are arranged to enable the two groups of sector gears 13 to rotate more stably; one side of each of the two groups of sector gears 13 is fixedly connected with a push rod 15, one end of each of the two groups of push rods 15 is fixedly connected with a clamping rod 16, the two groups of first clamping plates 17 are respectively and fixedly arranged at one end of each of the two groups of clamping rods 16, and the push rods 15 and the clamping rods 16 are arranged to facilitate stable installation and stable clamping of the first clamping plates 17; the work piece that will need the cutting is put between two sets of first grip blocks 17, start electric putter 9 after that, electric putter 9 work drives rack 10 and slides to the work piece direction, two sets of gears 11 and rack 10 intermeshing, and then drive two sets of gears 11 and rotate, two sets of sector gear 13 and two sets of gears 11 intermeshing, and then make two sets of sector gear 13 rotate, thereby make two sets of push rods 15 and two sets of supporting rods 16 rotate to relative direction, thereby make the second grip block 18 of two sets of first grip blocks 17 and rack 10 one end firmly grasp the work piece.

The working principle is as follows: when the cutting device is used, a workpiece to be cut is placed between the two groups of first clamping plates 17, then the electric push rod 9 is started, the electric push rod 9 works to drive the rack 10 to slide towards the workpiece, the two groups of gears 11 are meshed with the rack 10 to drive the two groups of gears 11 to rotate, the two groups of sector gears 13 are meshed with the two groups of gears 11 to further drive the two groups of sector gears 13 to rotate, so that the two groups of push rods 15 and the two groups of clamping rods 16 rotate towards opposite directions, the workpiece is firmly clamped by the two groups of first clamping plates 17 and the second clamping plate 18 at one end of the rack 10, then the control switch 8 is started, the control switch 8 controls the hydraulic cylinder 3 to work, the optical fiber laser 6 is driven to descend to cut, when collision occurs, the vibration sensor 5 senses the occurrence of vibration and immediately sends a signal to the control switch 8, and the control switch 8 sends a signal to stop the work of the hydraulic cylinder 3 and the optical fiber laser 6, the optical fiber laser 6 is prevented from being damaged or the laser emission direction is prevented from deviating to cause cutting errors, and meanwhile, the alarm 7 is controlled to give an alarm to indicate, so that the machine can be stopped immediately, and damage is reduced.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A collision protection device for a fiber laser cutting machine, comprising a worktable (1), characterized in that: the automatic feeding device is characterized in that a support (2) is fixedly arranged on the upper surface of a workbench (1), a hydraulic cylinder (3) is fixedly connected to the top of the support (2), the output rod end of the hydraulic cylinder (3) penetrates through and extends into the support (2), a fixing plate (4) is fixedly connected to the output rod end of the hydraulic cylinder (3), a fiber laser (6) is fixedly connected to the lower surface of the fixing plate (4), vibration sensors (5) are fixedly connected to two sides of the fixing plate (4), a control switch (8) is fixedly arranged on one side of the lower surface of the workbench (1), the hydraulic cylinder (3), the vibration sensors (5) and the control switch (8) are electrically connected, an electric push rod (9) is fixedly arranged on one side of the upper surface of the workbench (1), a rack (10) is fixedly connected to the output rod end of the electric push rod (9), and the rack (10) is slidably connected to the workbench (1), keep away from electric putter (9) one end fixedly connected with second grip block (18) in rack (10), workstation (1) upper surface is located rack (10) both sides and all rotates and is connected with gear (11), and is two sets of gear (11) and rack (10) intermeshing, workstation (1) upper surface is located two sets of gears (11) one side and all rotates and is connected with sector gear (13), and is two sets of sector gear (13) and two sets of gears (11) intermeshing, it is two sets of first grip block (17) of the equal fixedly connected with in sector gear (13) one side.

2. The collision protection device for the fiber laser cutting machine according to claim 1, wherein: support (2) top upper surface fixed mounting has alarm (7), shock sensor (5) and control switch (8) electric connection.

3. The collision protection device for the fiber laser cutting machine according to claim 1, wherein: the rack (10) bottom fixedly connected with slider (1001), spout (101) have been seted up to workstation (1) upper surface position in the middle, slider (1001) sliding connection is in spout (101).

4. The collision protection device for the fiber laser cutting machine according to claim 1, wherein: the upper surface of the workbench (1) is positioned on two sides of the rack (10) and is fixedly provided with first fixing columns (12), the first fixing columns (12) are of cylindrical structures, and the gears (11) are fixedly sleeved on the two first fixing columns (12) respectively.

5. The collision protection device for the fiber laser cutting machine according to claim 1, wherein: the upper surface of the workbench (1) is located on one side of each of the two groups of gears (11) and is fixedly connected with second fixing columns (14), and the two groups of sector gears (13) are fixedly sleeved on the two groups of second fixing columns (14) respectively.

6. The collision protection device for the fiber laser cutting machine according to claim 1, wherein: two sets of equal fixedly connected with push rod (15) in sector gear (13) one side, two sets of equal fixedly connected with supporting rod (16) in push rod (15) one end, two sets of first grip blocks (17) are fixed mounting respectively in two sets of supporting rod (16) one end.