CN112222636A - Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness - Google Patents

Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness Download PDF

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Publication number
CN112222636A
CN112222636A CN202011083974.2A CN202011083974A CN112222636A CN 112222636 A CN112222636 A CN 112222636A CN 202011083974 A CN202011083974 A CN 202011083974A CN 112222636 A CN112222636 A CN 112222636A
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CN
China
Prior art keywords
fixedly connected
laser
cutting machine
plate thickness
rod
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011083974.2A
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Chinese (zh)
Inventor
陈雨清
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Jiaxing Aostrontite Photoelectric Technology Co ltd
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Jiaxing Aostrontite Photoelectric Technology Co ltd
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Application filed by Jiaxing Aostrontite Photoelectric Technology Co ltd filed Critical Jiaxing Aostrontite Photoelectric Technology Co ltd
Priority to CN202011083974.2A priority Critical patent/CN112222636A/en
Publication of CN112222636A publication Critical patent/CN112222636A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/046—Automatically focusing the laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/703—Cooling arrangements

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention relates to the technical field of laser cutting, and discloses a laser cutting machine cutting head capable of automatically adjusting a focus according to plate thickness, which comprises a fixed frame, wherein the inner wall of the fixed frame is fixedly connected with a driving wheel, the right side of the driving wheel is in transmission connection with a driven wheel, pull ropes are fixedly connected to the front sides of the driving wheel and the driven wheel, a laser shell is inserted into the fixed frame, the top of a push rod is movably connected with a connecting rod, the left side of the connecting rod is movably connected with a pull rod, the right side of the pull rod is in sliding connection with a sliding block, the left side of the sliding block is fixedly connected with a tension spring, the interior of the laser shell is in sliding connection with a transmission. This can be according to laser cutting machine cutting head of thick automatically regulated focus, liquid thermal expansion makes the push pedal move right in the temperature sensing box, and the cooperation of rethread push pedal and intake pipe is used to reach the effect that can adjust atmospheric pressure according to cutting temperature.

Description

Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness
Technical Field
The invention relates to the technical field of laser cutting, in particular to a cutting head of a laser cutting machine, which can automatically adjust a focus according to the thickness of a plate.
Background
Laser cutting is one of the photoelectric techniques, and is a thermal cutting method in which a workpiece is irradiated with a focused high-power-density laser beam to rapidly melt, vaporize or reach a burning point of the irradiated material, and the melted material is blown off by means of a high-speed airflow coaxial with the beam, thereby cutting the workpiece.
Current laser cutting equipment, when the board of cutting different thickness, the focus of cutting head need be adjusted to the manual work generally, and is very inconvenient, seriously influences machining efficiency, and the cutting temperature of cutting different thickness boards simultaneously is also different, thereby needs the different atmospheric pressure of adjustment to make cutting plane ability rapid cooling, if not in time adjustment atmospheric pressure, can influence the cutting quality.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the cutting head of the laser cutting machine, which can automatically adjust the focus according to the plate thickness, has the advantages of automatic focus adjustment according to the plate thickness, air pressure adjustment according to the cutting temperature, high processing efficiency, good cutting quality and the like, and solves the problems that when plates with different thicknesses are cut, the focus of the cutting head needs to be adjusted, the cutting temperature is different, and different air pressures need to be adjusted, so that the cutting surface can be rapidly cooled.
(II) technical scheme
In order to realize the purposes of automatically adjusting the focus according to the plate thickness, adjusting the air pressure according to the cutting temperature, having high processing efficiency and good cutting quality, the invention provides the following technical scheme: a laser cutting head capable of automatically adjusting focus according to plate thickness comprises a fixed frame, wherein the inner wall of the fixed frame is fixedly connected with a driving wheel, the right side of the driving wheel is in transmission connection with a driven wheel, the front sides of the driving wheel and the driven wheel are fixedly connected with pull ropes, a laser shell is inserted in the fixed frame, the outer side of the bottom of the laser shell is sleeved with a gas pressure head, the right side of the gas pressure head is inserted with a gas inlet pipe, the inner wall of the gas pressure head is fixedly connected with a temperature sensing box, the inner part of the temperature sensing box is in sliding connection with a push plate, the right side of the push plate is fixedly connected with a reset spring, the bottom of the gas pressure head is in sliding connection with a sliding pipe, the top of the sliding pipe is fixedly connected with a buffer spring, the top of the buffer spring is fixedly, the right side sliding connection of pull rod has the slider, the left side fixedly connected with tension spring of slider, the inside sliding connection of laser shell has the transfer line, the inside sliding connection of mount has the kelly.
Preferably, the outside fixedly connected with teeth of a cogwheel of the action wheel, and the teeth of a cogwheel from the top down reduces in proper order, uses with the kelly cooperation, can guarantee the automatically regulated focus.
Preferably, the bottom of the stay cord is fixedly connected with a balancing weight, so that the stay cord is fixedly connected with the laser shell conveniently.
Preferably, the top of the laser shell is fixedly connected with an absorption block which is matched with a balancing weight for use.
Preferably, the right side of the push plate is fixedly connected with a trapezoidal piston for controlling air inlet of the air inlet pipe.
Preferably, the sliding pipe is connected with the air inlet pipe through an air pipe, so that the sliding pipe is ventilated.
Preferably, the connecting rod is movably connected to the top of the supporting rod on the inner wall of the air pressure head and used for changing the transmission direction.
Preferably, the top and the bottom of the transmission rod are both fixedly connected with magnetic blocks and matched with the sliding blocks for use.
(III) advantageous effects
Compared with the prior art, the invention provides the cutting head of the laser cutting machine, which can automatically adjust the focus according to the plate thickness, and has the following beneficial effects:
1. according to the laser cutting machine cutting head capable of automatically adjusting the focus according to the plate thickness, the slide pipe is pushed to ascend through the reactive force of gas, the slide pipe drives the ejector rod to ascend, the ejector rod drives the connecting rod to swing, the connecting rod drives the pull rod to descend, the pull rod drives the sliding block to descend, the sliding block drives the transmission rod to descend, the transmission rod drives the clamping rod to descend, and the clamping rod and the driving wheel are matched for use, so that the effect of automatically adjusting the focus according to the plate thickness is achieved.
2. This can be according to laser cutting machine cutting head of thick automatically regulated focus, liquid thermal expansion makes the push pedal move right in the temperature sensing box, and the cooperation of rethread push pedal and intake pipe is used to reach the effect that can adjust atmospheric pressure according to cutting temperature.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a partial schematic view of the driving wheel of the present invention;
FIG. 3 is a schematic view of a portion of a pull cord of the present invention;
FIG. 4 is a partially schematic view of the inlet duct of the present invention;
FIG. 5 is a partial schematic view of a slide tube according to the present invention;
FIG. 6 is an enlarged view of portion B of FIG. 1;
FIG. 7 is an enlarged view of part A of the block diagram of FIG. 1.
In the figure: 1-fixed mount, 2-driving wheel, 3-driven wheel, 4-pull rope, 5-laser shell, 6-pneumatic pressure head, 7-air inlet pipe, 8-temperature sensing box, 9-push plate, 10-reset spring, 11-sliding pipe, 12-buffer spring, 13-ejector rod, 14-connecting rod, 15-pull rod, 16-slide block, 17-pull spring, 18-transmission rod and 19-clamping rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a cutting head of a laser cutting machine capable of automatically adjusting focus according to plate thickness comprises a fixed frame 1, a driving wheel 2 is fixedly connected to the inner wall of the fixed frame 1, gear teeth are fixedly connected to the outer side of the driving wheel 2, the gear teeth are sequentially reduced from top to bottom and are matched with a clamping rod 19 for use, automatic focus adjustment can be guaranteed, a driven wheel 3 is connected to the right side of the driving wheel 2 in a transmission manner, pull ropes 4 are fixedly connected to the front sides of the driving wheel 2 and the driven wheel 3, a balancing weight is fixedly connected to the bottom of each pull rope 4, the pull ropes 4 are fixedly connected with a laser shell 5, a laser shell 5 is inserted into the fixed frame 1, a suction block is fixedly connected to the top of the laser shell 5 and is matched with the balancing weight for use, when the laser shell 5 is detached, the use of the pull ropes 4 is not affected, an air pressure, the inner wall of the air pressure head 6 is fixedly connected with a temperature sensing box 8, the inner part of the temperature sensing box 8 is connected with a push plate 9 in a sliding way, the right side of the push plate 9 is fixedly connected with a trapezoidal piston for controlling the air inlet of an air inlet pipe 7, the right side of the push plate 9 is fixedly connected with a return spring 10, the bottom of the air pressure head 6 is connected with a sliding pipe 11 in a sliding way, the sliding pipe 11 is connected with the air inlet pipe 7 through an air pipe to ventilate the sliding pipe 11, the top of the sliding pipe 11 is fixedly connected with a buffer spring 12, the top of the buffer spring 12 is fixedly connected with a top rod 13, the top of the top rod 13 is movably connected with a connecting rod 14, the connecting rod 14 is movably connected with the top of a supporting rod on the inner wall of the air pressure head 6 to change the transmission direction, the left side of the connecting rod 14, the top and the bottom of the transmission rod 18 are fixedly connected with magnetic blocks which are matched with the sliding blocks 16 for use, and the transmission rod 18 cannot interfere when the laser shell 5 is detached, the clamping rod 19 is slidably connected inside the fixing frame 1, and the clamping rod 19 is used for limiting the rotation of the driving wheel 2.
The working principle is that when machining is needed, the air inlet pipe 7 is communicated with air, the air inlet pipe 7 enables the air to be communicated with the sliding pipe 11 through the air pipe, the air of the sliding pipe 11 is blown to the plate surface, the distance between the thicker plate and the sliding rod 11 is smaller, the reaction force given to the sliding pipe 11 is larger, the ascending height of the sliding rod 11 is larger, the sliding rod 11 ascends to drive the ejector rod 13 to ascend, the ejector rod 13 ascends to drive the right side of the connecting rod 14 to swing, the left side of the connecting rod 14 swings downwards under the action of the supporting rod on the inner wall of the air pressure head 6, the connecting rod 14 drives the pull rod 15 to descend, the pull rod 15 descends to drive the slide block 16 to descend, the slide block 16 descends to drive the transmission rod 18 through the magnetic block, the transmission rod 18 descends through the magnetic block to drive the clamping rod 19, the clamping rod 19 descends to drive the driving wheel 2 to, along with the increase of the plate thickness, the descending height of the clamping rod 19 is increased, because the gear teeth on the outer side of the driving wheel 2 are gradually reduced from top to bottom, the more the clamping rod 19 descends, the larger the rotating angle of the driving wheel 2 is, the higher the ascending height of the laser shell 5 is, thereby achieving the effect of automatically adjusting the focus according to the plate thickness, after the focus is adjusted, the equipment is started, because the plate thickness is different, different cutting heat quantity needs to be adjusted, along with the increase of the heat quantity, the liquid inside the temperature sensing box 8 is heated and expanded, the temperature sensing liquid is expanded to drive the push plate 9 to move rightwards, because the right side of the push plate 9 is fixedly connected with a trapezoidal piston, along with the higher the temperature, the larger the rightwards moving distance of the push plate 9 is.
In summary, in the cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness, the slide tube 11 is pushed to ascend by the reaction force of the gas, the slide tube 11 drives the ejector rod 13 to ascend, the ejector rod 13 drives the connecting rod 14 to swing, the connecting rod 14 drives the pull rod 15 to descend, the pull rod 15 drives the slider 16 to descend, the slider 16 drives the transmission rod 18 to descend, the transmission rod 18 drives the clamping rod 19 to descend, and the clamping rod 19 is matched with the driving wheel 2 for use, so that the effect of automatically adjusting the focus according to the plate thickness is achieved. This can be according to laser cutting machine cutting head of thick automatically regulated focus, liquid thermal expansion makes push pedal 9 remove right in the temperature sensing box 8, and the cooperation of rethread push pedal 9 and intake pipe 7 is used to reach the effect that can adjust atmospheric pressure according to cutting temperature, application scope is more extensive.
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 (8)

1. The utility model provides a can be according to laser cutting machine cutting head of thick automatically regulated focus of board, includes mount (1), its characterized in that: the inner wall of the fixing frame (1) is fixedly connected with a driving wheel (2), the right side of the driving wheel (2) is in transmission connection with a driven wheel (3), the front sides of the driving wheel (2) and the driven wheel (3) are fixedly connected with a stay cord (4), a laser shell (5) is inserted in the fixing frame (1), an air pressure head (6) is sleeved on the outer side of the bottom of the laser shell (5), an air inlet pipe (7) is inserted in the right side of the air pressure head (6), a temperature sensing box (8) is fixedly connected with the inner wall of the air pressure head (6), a push plate (9) is slidably connected in the temperature sensing box (8), a reset spring (10) is fixedly connected on the right side of the push plate (9), a sliding pipe (11) is slidably connected at the bottom of the air pressure head (6), a buffer spring (12) is fixedly connected on the top of the sliding pipe (11), and an ejector rod, the top swing joint of ejector pin (13) has connecting rod (14), the left side swing joint of connecting rod (14) has pull rod (15), the right side sliding connection of pull rod (15) has slider (16), the left side fixedly connected with tension spring (17) of slider (16), the inside sliding connection of laser shell (5) has transfer line (18), the inside sliding connection of mount (1) has kelly (19).
2. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the outside fixedly connected with teeth of a cogwheel of action wheel (2), and the teeth of a cogwheel from the top down reduces in proper order.
3. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the bottom of the pull rope (4) is fixedly connected with a balancing weight.
4. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the top of the laser shell (5) is fixedly connected with an absorption block.
5. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the right side of the push plate (9) is fixedly connected with a trapezoidal piston.
6. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the sliding pipe (11) is connected with the air inlet pipe (7) through an air pipe.
7. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the connecting rod (14) is movably connected to the top of the supporting rod on the inner wall of the air pressure head (6).
8. The cutting head of the laser cutting machine capable of automatically adjusting the focus according to the plate thickness as claimed in claim 1, wherein: the top and the bottom of the transmission rod (18) are fixedly connected with magnetic blocks.
CN202011083974.2A 2020-10-12 2020-10-12 Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness Withdrawn CN112222636A (en)

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CN202011083974.2A CN112222636A (en) 2020-10-12 2020-10-12 Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness

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Application Number Priority Date Filing Date Title
CN202011083974.2A CN112222636A (en) 2020-10-12 2020-10-12 Laser cutting machine cutting head capable of automatically adjusting focus according to plate thickness

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174960A (en) * 2023-01-09 2023-05-30 奔腾激光科技(山东)有限公司 Side blowing-dust sucking mechanism of laser cutting machine tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1752311A1 (en) * 2005-08-12 2007-02-14 Mussino S.r.l. Method and device for welding by means of a laser beam a rim to a disc of a wheel for vehicles
CN102430858A (en) * 2011-10-10 2012-05-02 华中科技大学 Automatic focusing adjustor for laser processing
CN103252574A (en) * 2013-06-06 2013-08-21 济南铸造锻压机械研究所有限公司 Automatic focusing cutting head device of pipe cutter
CN111022976A (en) * 2019-12-24 2020-04-17 广州火盛科技有限公司 Three-zoom movie and television lamp and focusing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1752311A1 (en) * 2005-08-12 2007-02-14 Mussino S.r.l. Method and device for welding by means of a laser beam a rim to a disc of a wheel for vehicles
CN102430858A (en) * 2011-10-10 2012-05-02 华中科技大学 Automatic focusing adjustor for laser processing
CN103252574A (en) * 2013-06-06 2013-08-21 济南铸造锻压机械研究所有限公司 Automatic focusing cutting head device of pipe cutter
CN111022976A (en) * 2019-12-24 2020-04-17 广州火盛科技有限公司 Three-zoom movie and television lamp and focusing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174960A (en) * 2023-01-09 2023-05-30 奔腾激光科技(山东)有限公司 Side blowing-dust sucking mechanism of laser cutting machine tool
CN116174960B (en) * 2023-01-09 2023-11-10 奔腾激光科技(山东)有限公司 Side blowing-dust sucking mechanism of laser cutting machine tool

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Application publication date: 20210115