CN110948121A - High-power intelligent laser cutting head - Google Patents
High-power intelligent laser cutting head Download PDFInfo
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- CN110948121A CN110948121A CN201911199075.6A CN201911199075A CN110948121A CN 110948121 A CN110948121 A CN 110948121A CN 201911199075 A CN201911199075 A CN 201911199075A CN 110948121 A CN110948121 A CN 110948121A
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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
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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
- B23K26/02—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
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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
- B23K26/02—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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a high-power intelligent laser cutting head which comprises a collimating mirror protective shell, a collimating lens barrel assembly, a focusing driving assembly, a focusing mirror assembly, a lower protective mirror assembly, a nozzle assembly, a control device and a real-time monitoring system, wherein the collimating mirror protective shell is internally provided with a hollow cavity structure, the real-time monitoring system comprises an intracavity pressure sensor, an intracavity temperature sensor, a collimating lens barrel temperature detection sensor, a focusing lens barrel temperature detection sensor, a protective mirror temperature detection sensor, a pressure sensor for detecting the pressure of a gas cutting air knife in the nozzle assembly, a protective mirror missing detection sensor for respectively detecting whether a protective lens in the lower protective mirror assembly is installed in place or not and a magnetic Hall element sensor. The invention monitors the lens temperature, the cavity pressure, the cutting pressure, whether the lens is installed in place or not in real time, and the like, and carries out intelligent alarm to ensure the cutting process of high-power laser.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of laser cutting, and particularly relates to a high-power intelligent laser cutting head.
[ background of the invention ]
At present, the research and development technology of medium and low power laser cutting heads at home and abroad is mature, and multiple laser head manufacturers at home can independently design and produce the medium and low power laser cutting heads. High power intelligence cutting head is different from the cutting head of well low power, and is that well, low power cutting head are under the stable prerequisite of cutting use of putting into operation, because in the actual cutting process, along with some laser accessory products upgrade and upgrade (for example the research and development of high power laser instrument put into use) to and the cutting in-process operation is more and more automatic, cutting appearance spare is more extensive and the product demand is more and more intelligent, must lead to the research and development of high power intelligence cutting head to become a development trend.
The performance stability and reliability of the laser cutting head are very important, and the monitoring aiming at a plurality of performance indexes of the laser cutting head is a stable and reliable guarantee. In the industry of the laser cutting head at present, most of the laser cutting heads are still traditional cutting heads, and intelligent monitoring and holding are not provided. With the gradual increase of cutting power, higher requirements are put on the reliability of the laser cutting head.
Therefore, there is a need to provide a new high power intelligent laser cutting head to solve the above problems.
[ summary of the invention ]
The invention mainly aims to provide a high-power intelligent laser cutting head which can automatically monitor the temperature of a lens, the temperature in a cavity, the pressure in the cavity, the cutting pressure, whether the lens is installed in place or not in real time, carry out intelligent alarm and guarantee the cutting process of high-power laser.
The invention realizes the purpose through the following technical scheme: the high-power intelligent laser cutting head comprises a collimating lens protective shell, a collimating lens barrel assembly, a focusing driving assembly, a focusing lens assembly, a lower protective lens assembly, a nozzle assembly, a control device and a real-time monitoring system electrically connected with the control device, wherein the real-time monitoring system comprises an intracavity pressure sensor and an intracavity temperature sensor for respectively monitoring the pressure and the temperature of a cavity, a collimating lens barrel temperature detection sensor for detecting the temperature of a collimating lens in the collimating lens barrel assembly, a focusing lens barrel temperature detection sensor for detecting the temperature of a focusing lens in the focusing lens barrel assembly, a protective lens temperature detection sensor for detecting the temperature of a protective lens in the lower protective lens assembly, a pressure sensor for detecting the pressure of a gas cutting air knife in the nozzle assembly, a pressure sensor for respectively detecting the existence and nonexistence of the protective lens in the lower protective lens assembly, And a protective glass missing detection sensor and a magnetic Hall element sensor which are installed in place or not.
Furthermore, the control device comprises a single-chip microcomputer main control board, a servo driver electrically connected with the single-chip microcomputer main control board, an upper computer electrically connected with the single-chip microcomputer main control board and an alarm unit, and a Bluetooth communication module is arranged in the single-chip microcomputer.
Further, focusing drive assembly includes the casing, seals the front shroud of casing, fixes supporting seat, fixing base and servo motor in the casing, receive servo motor drive carries out the rotation and erects the supporting seat with lead screw, cover between the fixing base are established nut support on the lead screw, fixed setting are in just be located on the nut support the casing is outer collimating lens barrel subassembly, fix on the casing and monitor the grating chi subassembly of collimating lens barrel subassembly up-and-down motion distance, the casing is inside still to be provided with the injectly the limit switch of nut support upper and lower height, servo motor's output through a flexible coupling with screw connection, collimating lens barrel subassembly is located in the cavity.
Further, the top of collimating mirror protective housing is provided with power PCB board, a side surface is provided with main control PCB board, be provided with on the power PCB board and detect temperature in the cavity intracavity temperature sensor, detect the internal pressure size of cavity intracavity pressure sensor is provided with the detection on the main control PCB board collimating mirror tube subassembly interior collimating lens piece temperature collimating lens barrel temperature detects the sensor.
Further, the focusing lens assembly comprises a focusing outer cover, a focusing pressure plate, a focusing lens barrel assembly, a focusing lens barrel temperature detection sensor and a focusing front cover plate; the focusing lens barrel temperature detection sensor is fixed on the focusing outer cover, the focusing lens barrel assembly is locked on the focusing outer cover through the focusing front cover plate, the focusing pressure plate is fixed with the focusing outer cover through a screw, and the focusing pressure plate restrains the focusing lens barrel assembly in an inner cavity of the focusing outer cover; the outer side of the focusing outer cover is provided with a through hole, and the temperature of a focusing lens in the focusing lens barrel assembly in the inner cavity of the focusing outer cover is monitored by the focusing lens barrel temperature detection sensor in real time through the through hole in the outer side of the focusing outer cover.
Further, the protective glass subassembly includes the sensor protective glass seat, sets up PCB board, setting in the recess of sensor protective glass seat upper portion are in on the PCB board protective glass temperature detection sensor and detection protective glass have or not protective glass disappearance detection sensor, horizontal slidable set up protective glass seat, setting in the spout of sensor protective glass seat bottom are in moist gleitbretter, lens pressure mirror steel ring, protective glass piece and general stopper that just top-down distributes on the protective glass seat seal, pressfitting setting are in the LED mount pad of sensor protective glass seat bottom, embedded setting are in just aim at in the LED mount pad the outer ring that keeps out the wind of protective glass piece, interior ring that keeps out the wind, setting are in the air cock piece of LED mount pad one side, setting are in coupling on the air cock piece.
Further, a mounting ring is arranged on the PCB and located right above the protective lenses, the protective lens loss detection sensor comprises a red light emitter and a red light receiver which are symmetrically mounted on the mounting ring, and whether the protective lenses are lost or not can be judged by judging whether the protective lenses can be received by the red light receiver after the red light emitter emits red light to the protective lenses below and then the red light is reflected out.
Furthermore, a magnet block is arranged on the protective mirror base, and the magnetic Hall element sensor for sensing the magnetic force of the magnet block is arranged on the PCB.
Furthermore, a through hole which is vertically communicated and upwards communicated with the protective lens is formed in the middle of the LED mounting seat, the blowing flow channel is communicated with the through hole, the outer wind blocking ring is arranged in the through hole, the inner wind blocking ring is arranged in the outer wind blocking ring, a plurality of blowing openings communicated with the blowing flow channel are formed in the circumferential surface of the outer wind blocking ring, a blowing annular cavity communicated with the air channel in the nozzle assembly is formed between the outer wind blocking ring and the inner wind blocking ring, an air pressure detection channel communicated with the blowing annular cavity is formed in the LED mounting seat, and the pressure sensor is serially arranged on the air pressure detection channel.
Furthermore, the bottom of the blowing annular cavity is in a sealed state, the upper part of the blowing annular cavity is in an open structure, cutting auxiliary gas enters the blowing flow channel through the pipe joint and the air nozzle block, then enters the blowing annular cavity, and then enters the nozzle assembly to be sprayed out through the nozzle after upwards sweeping the protective lens, so that the cutting head is protected from cutting by the auxiliary gas.
Compared with the prior art, the high-power intelligent laser cutting head has the beneficial effects that: the intelligent laser cutting head has the functions of collimation, focusing, protection lens temperature detection, cutting air pressure and intra-cavity air pressure detection, EtherCat communication, a Bluetooth module, lower protection lens seat in-place detection, lower protection lens loss detection and the like.
[ description of the drawings ]
FIG. 1 is a schematic diagram of an exploded structure of a sub-module according to an embodiment of the present invention;
FIG. 2 is an exploded view of a focus drive assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an exploded structure inside a collimator lens protective shell according to an embodiment of the invention;
FIG. 4 is a schematic diagram of an exploded view of a focusing mirror assembly in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of an exploded view of a lower protective mirror assembly in an embodiment of the present invention;
FIG. 6 is a schematic diagram of a partially exploded view of a lower protective mirror assembly in an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of an LED mounting base according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of the gas cutting blow channel distribution in the embodiment of the present invention.
[ detailed description ] embodiments
Example (b):
referring to fig. 1 to 8, the present embodiment is a high power intelligent laser cutting head, which includes an optical fiber connection assembly 1001, a back plate water-cooling assembly 1002, a focusing driving assembly 1004, a focusing mirror assembly 1005, a lower protection mirror assembly 1006, a nozzle assembly 1003, and an amplifier assembly 1007.
The focusing driving assembly 1004 includes a casing 1, a front cover plate 10 for closing the casing 1, a support seat 5 fixed in the casing 1, a fixed seat 8 and a servo motor 11, a screw rod 6 driven by the servo motor 11 to rotate and erected between the support seat 5 and the fixed seat 8, a nut support 4 sleeved on the screw rod 6, a collimating lens barrel assembly 23 fixedly arranged on the nut support 4 and located outside the casing 1, and a grating ruler assembly 3 fixed on the casing 1 and monitoring the vertical movement distance of the collimating lens barrel assembly 23. And a limit switch 7 for limiting the height of the nut bracket 4 is also arranged in the shell 1. The output end of the servo motor 11 is connected with the screw rod 6 through a coupler 9.
A collimating lens protective shell 20 is arranged on the outer side of the shell 1, a cavity 201 is formed inside the collimating lens protective shell 20, and the collimating lens barrel assembly 23 is located in the cavity 201.
The collimating lens cone assembly 23 is internally provided with collimating lenses, the collimating lens cone assembly 23 is arranged on the shell 1 in a sliding manner through crossed roller guide rails, and the coaxiality, parallelism, straightness and the like of the collimating lens cone assembly 23 are all ensured by the guide rail precision; servo motor 11, fixing base 8, supporting seat 5 are all fixed on casing 1, and one side of nut support 4 is connected with the nut of lead screw 6, and the opposite side is connected with collimation lens cone subassembly 23. The lead screw 6 is supported by the fixed seat 8 and the supporting seat 5, and the flexible coupling 9 is arranged between the lead screw 6 and the servo motor 11, so that the coaxial error between the motor and the lead screw can be eliminated. The servo motor 11 drives the screw rod 6 and simultaneously drives the collimating lens cone assembly 23 to move up and down, thereby realizing optical zooming adjustment. The limit switches 7 are arranged on two sides in the shell 1, and two sides of the nut bracket 4 can sense the positions of the limit switches 7; similarly, the housing 1 is further provided with a hard limiting open slot, so that the nut bracket 4 can move within a designated position range. The grating ruler component 3 comprises a reading head, a grating ruler and a supporting seat, the reading head is fixed on the shell 1 by the supporting seat, the grating ruler is connected with the collimating lens cone component 23, and the reading head can be adjusted on the supporting seat to the height between the reading head and the grating ruler and the left and right positions of the reading head so as to achieve the best induction position. The reading head can read and identify the real-time position of the grating ruler, and simultaneously feeds back the real-time position to an upper computer system, and then performs compensation control on the focus position.
Inside collimating lens protective housing 20 was stretched into from a side surface opening part to collimating lens barrel subassembly 23, the top of collimating lens protective housing 20 was provided with power PCB board 21, a side surface was provided with main control PCB board 22, was provided with on the power PCB board 21 and detects intracavity temperature sensor 2101 of cavity internal temperature, detection intracavity pressure sensor 2102 of the internal pressure size of cavity, was provided with collimating lens barrel temperature detection sensor 2201 that detects the temperature in the collimating lens barrel subassembly 23 on the main control PCB board 22.
The main control PCB 22 is fixed on the side of the collimating mirror protective housing 20, the collimating lens barrel temperature detecting sensor 2201 is welded on the main control PCB 22, a via hole is formed in the side of the main control PCB 22, and the collimating lens barrel temperature detecting sensor 2201 can monitor the temperature of the collimating lens barrel assembly 23 in the inner cavity of the main control PCB 22 in real time through the via hole. The other side surface of the main control PCB board 22 is also provided with a closed chamber 24, and circulating cooling water flows in the closed chamber 24.
In addition, the power supply PCB 21 is also fixed on the part of the collimator lens protective shell 20, the power supply PCB 21 is communicated with the inner cavity of the collimator lens protective shell 20, an inner cavity temperature sensor 2101 is welded on the power supply PCB 21, and the temperature in the cavity of the cutting head can be monitored in real time by the inner cavity temperature sensor 2101.
The bottom of the optical fiber connection assembly 1001 is press-fit on the top of the collimating mirror protective case 20, the bottom of the collimating mirror protective case 20 is press-fit connected with the top of the focusing mirror assembly 1005, the bottom of the focusing mirror assembly 1005 is press-fit connected with the top of the lower protection mirror assembly 1006, and the bottom of the lower protection mirror assembly 1006 is press-fit connected with the top of the nozzle assembly 1003. The laser beam output by the fiber optic connection assembly 1001 passes through the focusing mirror assembly 1005, the lower protective mirror assembly 1006, and exits the end of the nozzle assembly 1003 in sequence.
The focus lens unit 1005 includes a focus housing 18, a focus pressure plate 16 attached between the focus housing 18 and the collimator lens protective case 20, a focus lens barrel unit 17 provided in the focus housing 18, a focus lens barrel temperature detection sensor 15 provided in the focus housing 18 and detecting the temperature in the focus lens barrel unit 17, and a focus front cover plate 19 fixed to the front surface of the focus housing 18.
The focusing lens barrel temperature detection sensor 15 is fixed on a focusing outer cover 18, the focusing lens barrel assembly 17 is locked on the focusing outer cover 18 through a focusing front cover plate 19, a focusing pressure plate 16 is fixed with the focusing outer cover 18 through screws, and the focusing pressure plate 16 restrains the focusing lens barrel assembly 17 in an inner cavity of the focusing outer cover 18; the outer side of the focusing outer cover 18 is provided with a through hole, and a temperature detection sensor (not marked in the figure) on the focusing lens barrel temperature detection sensor 15 monitors the temperature of the focusing lens barrel assembly 17 in the inner cavity of the focusing outer cover 18 in real time through the through hole on the outer side of the focusing outer cover 18.
The lower protective lens assembly 1006 comprises a sensor protective lens base 101, a PCB 116 disposed in a groove 1011 on the upper portion of the sensor protective lens base 101, a protective lens temperature detection sensor 117 disposed on the PCB 116, a protective lens defect detection sensor 122 for detecting whether a protective lens exists, a protective lens base 118 horizontally slidably disposed in a chute 123 on the bottom of the sensor protective lens base 101, a lubricating sheet 102 disposed on the protective lens base 118 and distributed from top to bottom, a lens pressing lens steel ring 103, a protective lens 104 and a flooding plug seal 110, an LED mounting base 109 press-fitted on the bottom of the sensor protective lens base 101, an outer wind blocking ring 107 embedded in the LED mounting base 109 and aligned with the protective lens 104, an inner wind blocking ring 108, an air nozzle block 114 disposed on one side of the LED mounting base 109, and a pipe joint 115 disposed on the air nozzle block 114. The front side surface of the protective mirror base 118 is fixedly provided with a protective mirror base front cover plate 106 through a knurled screw 105, an air blowing flow channel 1091 is arranged inside the LED mounting base 109, and an air vent pipe 1141 communicating the air blowing flow channel 1091 with a pipe joint 115 is arranged inside the air nozzle block 114. An O-ring 111 is arranged at the joint of the air nozzle block 114 and the LED mounting seat 109.
The PCB 116 is provided with a mounting ring 119 directly above the protective glass, and the protective glass defect detection sensor 113 includes a red light emitter and a red light receiver symmetrically mounted on the mounting ring 119, and determines whether the protective glass is defective by emitting red light to the protective glass below through the red light emitter and then reflecting the red light to the protective glass below and whether the red light can be received by the red light receiver.
The protective lens base 118 is provided with a magnet block 120, and the PCB 116 is provided with a magnetic hall sensor 121 for sensing the magnetic force of the magnet block 120. The magnetic Hall element sensor 121 senses the magnetic force value of the magnet block 120, so that whether the protective lens seat 118 is installed in place or not can be judged, the accuracy of the installation position of the protective lens is guaranteed, and accidents caused by the fact that the protective lens is not installed in place in the normal use process of the laser head are reduced.
The middle of the LED mounting base 109 is provided with a through hole 1092 which is vertically through and upwards passes through the protective lens 104, the air blowing channel 1091 is communicated with the through hole 1092, the outer wind guard ring 107 is arranged in the through hole 1092, the inner wind guard ring 108 is arranged in the outer wind guard ring 107, the circumferential surface of the outer wind guard ring 107 is provided with a plurality of air blowing ports 1093 communicated with the air blowing channel 1091, an air blowing annular cavity 1094 communicated with an air channel inside the nozzle assembly 1003 is formed between the outer wind guard ring 107 and the inner wind guard ring 108, and the LED mounting base 109 is further provided with a pressure sensor 112 for monitoring the air pressure in the air blowing channel 1091.
The bottom of the blowing annular cavity 1094 is in a sealed state, the upper portion of the blowing annular cavity 1094 is in an open structure, cutting auxiliary gas enters the blowing flow channel 1091 through the pipe joint 115 and the gas nozzle block 114, then enters the blowing annular cavity 1094, then enters the nozzle assembly 1003 to be sprayed out through the nozzle after upwards sweeping the protective lens 104, and the cutting head is protected by auxiliary gas cutting.
The protective lens 104 is pressed and fixed on the protective lens base 118 by the lens pressing steel ring 103, the protective lens base 118 is connected with the protective lens base front cover plate 106, and the protective lens base front cover plate 106 is fixed on the sensor protective lens base 101 by the knurled screw 105. The LED mounting seat 109 and the sensor protective mirror seat 101 are fixed together by screws and pins, the protective mirror seat 118 is positioned between the LED mounting seat 109 and the sensor protective mirror seat 101, and the protective mirror seat 118 can be pulled back and forth between the LED mounting seat 109 and the sensor protective mirror seat 101. The pressure sensor 112 is fixed between the sensor protective lens seat 101 and the LED mounting seat 109, the LED mounting seat 109 is provided with an air inlet, the LED mounting seat 109 is connected with the air nozzle 114 by a screw, and the pipe joint 115 is fixed on the air nozzle 114. The inner wind-shielding ring 108 is fastened and connected with the outer wind-shielding ring 107 by screw threads, and the outer wind-shielding ring 107 is connected with the LED mounting seat 109 by screws. The LED mounting base 109 is also provided with an air pressure detecting channel 1094, which is directly communicated with the pressure sensor 112. The other end of the air pressure detecting channel 1094 of the LED mounting seat 109 is screwed and sealed by a jackscrew 113.
In this embodiment, a series of temperature sensors are provided, such as an intracavity temperature sensor 2101 for detecting the temperature inside the cavity of the collimator lens protective housing 20, a collimator lens barrel temperature detection sensor 2201 for detecting the temperature of the collimator lens barrel assembly 23, a focus lens barrel temperature detection sensor 15 for detecting the temperature inside the focus lens barrel assembly 17, and a protection lens temperature detection sensor 117 for detecting the temperature of the protection lens, so as to monitor the temperature of each optical lens in the optical system and the temperature inside the beam propagation environment space in real time, and alarm for abnormal situations, thereby ensuring the laser processing process, and effectively protecting the laser and each group of lenses.
The embodiment is further provided with a series of pressure sensors, such as an intracavity pressure sensor 2102 for detecting the pressure in the cavity of the collimator lens protective shell 20 and a pressure sensor 112 for detecting the cutting air pressure, so as to alarm against abnormal conditions and effectively protect the laser.
The embodiment is further provided with a protective lens missing detection sensor 122 for detecting whether the lower protective lens is in place or not and a magnetic hall element sensor 121 for detecting whether the lower protective lens is installed in place or not, so that the protective lens is protected all the time in the laser processing process, and the reliability and effectiveness of the processing process are further guaranteed.
The embodiment further comprises a control device, the control device comprises a single-chip microcomputer main control board, a servo driver electrically connected with the single-chip microcomputer main control board, an upper computer electrically connected with the single-chip microcomputer main control board and an alarm unit, and a Bluetooth communication module is arranged in the single-chip microcomputer and can be connected with the Bluetooth of the mobile phone. The grating ruler is connected to the servo driver, the servo motor and an encoder of the servo motor are also connected to the servo driver, the encoder provides speed feedback, and the grating ruler provides position feedback, so that the full-closed-loop control with higher precision is realized. All the sensors are electrically connected with the main control board of the single chip microcomputer.
The beneficial effect of this embodiment a high power intelligence laser cutting head lies in: the intelligent laser cutting head has the functions of collimation, focusing, protection lens temperature detection, cutting air pressure and intra-cavity air pressure detection, Ether Cat communication, a Bluetooth module, lower protection lens seat in-place detection, lower protection lens loss detection and the like.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a high power intelligence laser cutting head which characterized in that: which comprises a collimating mirror protective shell with a hollow cavity structure inside, a collimating lens barrel assembly, a focusing driving assembly, a focusing mirror assembly, a lower protective mirror assembly, a nozzle assembly, a control device and a real-time monitoring system electrically connected with the control device, the real-time monitoring system comprises an intracavity pressure sensor and an intracavity temperature sensor which respectively monitor the pressure and the temperature in the cavity, a collimating lens barrel temperature detection sensor which detects the temperature of a collimating lens in the collimating lens barrel assembly, a focusing lens barrel temperature detection sensor which detects the temperature of a focusing lens in the focusing lens barrel assembly, a protective lens temperature detection sensor which detects the temperature of a protective lens in the lower protective lens assembly, a pressure sensor which detects the pressure of a gas cutting air knife in the nozzle assembly, a protective lens missing detection sensor which respectively detects whether the protective lens in the lower protective lens assembly is in place or not, and a magnetic Hall element sensor.
2. The high power intelligent laser cutting head of claim 1, wherein: the control device comprises a single-chip microcomputer main control board, a servo driver electrically connected with the single-chip microcomputer main control board, an upper computer electrically connected with the single-chip microcomputer main control board and an alarm unit, and a Bluetooth communication module is arranged in the single-chip microcomputer.
3. The high power intelligent laser cutting head of claim 2, wherein: focusing drive assembly includes the casing, seals the front shroud of casing, fixes supporting seat, fixing base and servo motor in the casing, receive servo motor drive carries out the rotation and erects the supporting seat with lead screw, cover between the fixing base are established nut support on the lead screw, fixed setting are in just be located on the nut support the collimating lens barrel subassembly, fix on the casing and monitor the grating chi subassembly of collimating lens barrel subassembly up-and-down motion distance, the casing is inside still to be provided with the injectly the limit switch of nut support height from top to bottom, servo motor's output through a flexible coupling with screw connection, collimating lens barrel subassembly is located in the cavity.
4. The high power intelligent laser cutting head of claim 3, wherein: the top of collimating mirror protective housing is provided with power PCB board, a side surface is provided with main control PCB board, be provided with on the power PCB board and detect temperature in the cavity intracavity temperature sensor, detect pressure size in the cavity intracavity pressure sensor is provided with on the main control PCB board and detects collimating mirror lens barrel temperature in the collimating mirror lens barrel subassembly collimating mirror lens barrel temperature detects the sensor.
5. The high power intelligent laser cutting head of claim 4, wherein: the focusing lens assembly comprises a focusing outer cover, a focusing pressure plate, a focusing lens barrel assembly, a focusing lens barrel temperature detection sensor and a focusing front cover plate; the focusing lens barrel temperature detection sensor is fixed on the focusing outer cover, the focusing lens barrel assembly is locked on the focusing outer cover through the focusing front cover plate, the focusing pressure plate is fixed with the focusing outer cover through a screw, and the focusing pressure plate restrains the focusing lens barrel assembly in an inner cavity of the focusing outer cover; the outer side of the focusing outer cover is provided with a through hole, and the temperature of a focusing lens in the focusing lens barrel assembly in the inner cavity of the focusing outer cover is monitored by the focusing lens barrel temperature detection sensor in real time through the through hole in the outer side of the focusing outer cover.
6. The high power intelligent laser cutting head of claim 5, wherein: lower protective glass subassembly includes sensor protective glass seat, sets up PCB board, setting in the recess of sensor protective glass seat upper portion are in on the PCB board protective glass temperature detects the sensor and detects the protective glass and have or not protective glass disappearance detection sensor, horizontal slidable set up protective glass seat, setting in the spout of sensor protective glass seat bottom are in moist gleitbretter, lens pressure mirror steel ring, protective glass piece and general stopper that just top-down distributes on the protective glass seat seal, pressfitting setting are in the LED mount pad of sensor protective glass seat bottom, embedded setting are in just aim at in the LED mount pad the outer ring that keeps out the wind of protective glass piece, interior ring that keeps out the wind, sets up the air cock piece of LED mount pad one side, setting are in coupling on the air cock piece.
7. The high power intelligent laser cutting head of claim 6, wherein: the protective glass defect detection sensor comprises a red light emitter and a red light receiver which are symmetrically arranged on the mounting ring, and whether the protective glass is lost or not can be judged by judging whether the protective glass is lost or not by emitting red light to the protective glass below through the red light emitter and then reflecting the red light out of the protective glass.
8. The high power intelligent laser cutting head of claim 7, wherein: the protective mirror base is provided with a magnet block, and the PCB is provided with a magnetic Hall element sensor for sensing the magnetic force of the magnet block.
9. The high power intelligent laser cutting head of claim 8, wherein: the LED mounting seat is characterized in that a through hole which is vertically communicated and upwards communicated with the protective lens is formed in the middle of the LED mounting seat, the air blowing channel is communicated with the through hole, the outer wind blocking ring is arranged in the through hole, the inner wind blocking ring is arranged in the outer wind blocking ring, a plurality of air blowing openings communicated with the air blowing channel are formed in the circumferential surface of the outer wind blocking ring, an air blowing annular cavity communicated with an air channel in the nozzle assembly is formed between the outer wind blocking ring and the inner wind blocking ring, an air pressure detection channel communicated with the air blowing annular cavity is formed in the LED mounting seat, and the pressure sensor is serially arranged on the air pressure detection channel.
10. The high power intelligent laser cutting head of claim 9, wherein: the bottom of the blowing annular cavity is in a sealed state, the upper portion of the blowing annular cavity is in an open structure, cutting auxiliary gas enters the blowing flow channel through the pipe joint and the air nozzle block, then enters the blowing annular cavity, and then is swept upwards to the protective lens, enters the nozzle assembly and is sprayed out through the nozzle, and the cutting head is protected from cutting by the auxiliary gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199075.6A CN110948121A (en) | 2019-11-29 | 2019-11-29 | High-power intelligent laser cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199075.6A CN110948121A (en) | 2019-11-29 | 2019-11-29 | High-power intelligent laser cutting head |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111545898A (en) * | 2020-05-13 | 2020-08-18 | 岗春激光科技（江苏）有限公司 | Laser head control system and method and laser head |
| CN111715995A (en) * | 2020-06-22 | 2020-09-29 | 深圳市创鑫激光股份有限公司 | Method for adjusting laser processing head and laser processing head |
| CN113523544A (en) * | 2021-08-24 | 2021-10-22 | 深圳市睿利汉深激光设备有限公司 | Single-vibrating-mirror type multipurpose optical fiber welding handheld gun |
| CN113720582A (en) * | 2021-09-02 | 2021-11-30 | 深圳软动智能控制有限公司 | Laser head fault acquisition method and device, laser equipment and storage medium |
| CN113977105A (en) * | 2021-11-18 | 2022-01-28 | 上海波刺自动化科技有限公司 | Device for monitoring sealing performance of laser cutting gas circuit in real time |
| CN114406510A (en) * | 2022-02-25 | 2022-04-29 | 深圳软动智能控制有限公司 | Laser head focusing control device and system |
| CN115647621A (en) * | 2022-10-14 | 2023-01-31 | 深圳市创想三维科技股份有限公司 | Detection assembly, laser module, light emitting control method of laser module and laser processing equipment |
| CN116160114A (en) * | 2023-03-24 | 2023-05-26 | 徐州重型机械有限公司 | Laser welding equipment with adjustable according to weld joint orientation full angle |
| CN117182352A (en) * | 2023-11-06 | 2023-12-08 | 武汉锐科光纤激光技术股份有限公司 | laser cutting head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111545898A (en) * | 2020-05-13 | 2020-08-18 | 岗春激光科技（江苏）有限公司 | Laser head control system and method and laser head |
| CN111715995A (en) * | 2020-06-22 | 2020-09-29 | 深圳市创鑫激光股份有限公司 | Method for adjusting laser processing head and laser processing head |
| CN113523544A (en) * | 2021-08-24 | 2021-10-22 | 深圳市睿利汉深激光设备有限公司 | Single-vibrating-mirror type multipurpose optical fiber welding handheld gun |
| CN113720582A (en) * | 2021-09-02 | 2021-11-30 | 深圳软动智能控制有限公司 | Laser head fault acquisition method and device, laser equipment and storage medium |
| CN113977105A (en) * | 2021-11-18 | 2022-01-28 | 上海波刺自动化科技有限公司 | Device for monitoring sealing performance of laser cutting gas circuit in real time |
| CN114406510A (en) * | 2022-02-25 | 2022-04-29 | 深圳软动智能控制有限公司 | Laser head focusing control device and system |
| CN115647621A (en) * | 2022-10-14 | 2023-01-31 | 深圳市创想三维科技股份有限公司 | Detection assembly, laser module, light emitting control method of laser module and laser processing equipment |
| CN116160114A (en) * | 2023-03-24 | 2023-05-26 | 徐州重型机械有限公司 | Laser welding equipment with adjustable according to weld joint orientation full angle |
| CN116160114B (en) * | 2023-03-24 | 2024-06-11 | 徐州重型机械有限公司 | Laser welding equipment with adjustable according to weld joint orientation full angle |
| CN117182352A (en) * | 2023-11-06 | 2023-12-08 | 武汉锐科光纤激光技术股份有限公司 | laser cutting head |
| CN117182352B (en) * | 2023-11-06 | 2024-02-20 | 武汉锐科光纤激光技术股份有限公司 | Laser cutting head |
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