42 results about "Laser beam machining" patented technology

This invention provides a heat spreader manufacturing process, relating to the field of laser beam processing technology, including: Step S1: After positioning the copper mesh and the lower cover of the heat spreader, place them into the fixture of the laser machine; Step S2: Determine the laser path of the laser machine, perform laser engraving, and use the laser beam to bond the copper mesh and the lower cover of the heat spreader together; The high temperature emitted by the laser beam changes the roughness of the copper mesh, achieving an oxidation effect. The laser beam firmly bonds the copper mesh and the lower cover of the heat spreader together, preventing them from falling off, thus providing a fixing effect, equivalent to the sintering effect of the original technology; The laser beam sweeps across the capillary mesh, and the emitted high temperature instantly changes the roughness of the capillary mesh, achieving the oxidation effect of the original technology; The laser beam is very fast, with a single product expected to be completed within 1 minute, improving efficiency and reducing production costs; It solves the temperature challenge between oxidation and reduction, reducing the difficulty of reduction.

The invention relates to a machining device (10) and a method for machining a workpiece (20), in particular a workpiece equipped with cutting edges, by means of a high-energy machining beam (30) comprising: a machining device (40), a holder (50) and a base (60), wherein the holder (50) is arranged on the base (60) and the machining device (40) is mounted on the holder (50) so as to be pivotable and / or rotatable about a pivot axis (70);the processing device (40) comprising: a processing beam source (80) for generating and / or coupling the processing beam (30) into the processing device (10), a deflection device (90) by means of which the processing beam (30) can be deflected at different angles, and a beam path (100) of the processing beam (30) which runs between the processing beam source (80) and the deflection device (90), wherein the entire beam path (100) between the processing beam source (80) and the deflection device (90) is designed such that it moves with the processing device (10) when the processing device (10) is pivoted and / or rotated, and the distance and orientation of the entire beam path (100) between the processing beam source (80) and the deflection device (90) with respect to the pivot axis (70) remains constant.

The invention relates to a method for processing a hairpin (12) by means of a pulsed laser beam (18), wherein the method comprises: processing the hairpin (12) by means of the pulsed laser beam (18); detecting a sound emission from the hairpin (12) during the processing of the hairpin (12); and determining information about the processing of the hairpin (12) by analysing the detected sound emission.

The utility model relates to the field of laser beam machining equipment, in particular to ultrasonic vibration auxiliary laser welding equipment. The equipment comprises a workbench and a laser welding assembly, a welding position used for fixing a tool is arranged on the workbench, an ultrasonic vibration auxiliary device corresponding to the welding position is fixedly connected to the workbench, and the auxiliary device comprises an ultrasonic vibration mechanism. The ultrasonic vibration mechanism comprises a transducer and an amplitude-change pole arranged at the output end of the transducer, the welding equipment further comprises a supporting base, a pushing assembly used for driving the ultrasonic vibration mechanism to do reciprocating motion is arranged on the supporting base, and a vibration die head used for making contact with a tool is arranged at the end, away from the transducer, of the amplitude-change pole. And the jacking force of the vibration die head to the contact of the tool can be controlled through the reciprocating motion of the jacking assembly. According to the utility model, the amplitude of the workpiece to be welded can be adjusted by adjusting the reciprocating motion of the air cylinder so as to meet the requirements on different amplitudes during welding.

This invention discloses a laser-processed honeycomb-type energy-saving electrothermal anti-icing surface and its preparation method, belonging to the field of metal surface laser beam processing technology. The honeycomb-type energy-saving electrothermal anti-icing surface is prepared by bonding an HMPC microstructure surface, after low surface energy treatment, to an electrothermal layer. The HMPC microstructure layer has a hexagonal hollow micropillar structure array processed by femtosecond laser; the electrothermal layer is prepared by bonding insulating polyimide layers to both sides of the MWCNTs / AgNWs electrothermal film. The honeycomb-type energy-saving electrothermal anti-icing surface prepared by this invention has excellent anti-icing / de-icing capabilities. The structural layer forms a stable heat insulation layer by increasing the specific surface area, which, together with the electrothermal layer, achieves efficient heat storage and slow release. Under an applied voltage of 1V, ice melting is achieved within 64s. The surface ice adhesion strength is tested to be 0.96kPa, which is only 0.0138 times that of pure aluminum surface, avoiding the defects of intermittent ice melting and interrupted heating in mainstream reverse circulation defrosting technology.

This invention relates to a method for calibrating at least one optical sensor (200, 300, 400) of a laser processing head (800) for machining workpieces by means of a processing laser beam (L). The laser processing head (800) includes a first optical sensor (200, 300, 400), a deflection device (500), and a focusing device (600). The beam path of the first optical sensor (200, 300, 400) passes through the deflection device (500) and the focusing device (600). The method includes the following steps: deflecting the beam path of a first optical sensor (200, 300, 400) to a first position on a first reference (R, R1, R2, R3, R4) by a deflection device (500); generating a first optical measurement signal based on the measurement light (210, 410) received by the first optical sensor (200, 300, 400) from the first position on the first reference (R, R1, R2, R3, R4); and determining a correction value for calibrating the first optical sensor (200, 300, 400) based on the first optical measurement signal and according to the deviation between the first position on the first reference (R, R1, R2, R3, R4) and a first nominal position, wherein the position of the first nominal position relative to the processing laser beam (L) is predetermined.

The invention relates to the technical field of laser beam processing, in particular to laser degumming and stripping equipment for flexible screen production. According to the technical scheme, the device comprises a second frame shell fixedly connected to the front side of a first frame shell; the feeding bin is arranged on the frame shell II; the two groups of material moving frames are connected into the frame shell II in a sliding manner; the two groups of guide rails are fixedly connected to the left and right sides of the mounting cavity of the frame shell II respectively; the mounting frame is slidably connected between the two groups of guide rails; the at least two groups of electric push frames are fixedly connected to the mounting frame; the material suction device is fixedly connected to the bottom of the control end of each group of electric push frames; and the supporting seat is connected into the feeding bin in a sliding manner. By integrating the controllable moving material moving frame, the material sucking device, the conveying piece and the supporting base, full-automatic feeding and discharging and continuous operation in the flexible screen laser glue stripping process can be achieved, the operation efficiency and process consistency of the stripping procedure are improved, and the defects that in the prior art, the efficiency is low, the yield fluctuates, and automatic production line connection is not smooth are overcome.

To provide a work table and a laser beam machining method capable of improving working efficiency.SOLUTION: A work table 10 used for a laser beam machine includes a mounting part 20 attached to the laser beam machine, and a body part 30 detachably attached to the mounting part 20 to machine a workpiece. The main body part 30 includes a base part 31 to which a support member 45 for supporting the workpiece can be attached, and a frame body 40 for surrounding an outer edge of the base part 31 by its inner surface, and the frame body 40 has a height higher than an upper end of the support member 45 attached to the base part 31 and allowing the workpiece to abut thereon. With this configuration, it is possible to replace only the main body portion 30 in a state where the mounting portion 20 is fixed to the laser processing machine 1, so that the work efficiency is improved.SELECTED DRAWING: Figure 1

The invention relates to the field of laser processing, and discloses a laser beam processing treatment process for the surface of a steel bridge component, which comprises the following steps: a laser beam deflection unit drives a laser beam to carry out area scanning on the surface of the component, and a photoelectric sensing unit is used for collecting a reflection intensity signal; the control unit extracts a signal amplitude mean value to construct a feature sequence and compares the feature sequence with an oxidation judgment benchmark; and when the amplitude is in a switching interval, bidirectional scanning is switched into unidirectional intermittent scanning by modulating a galvanometer motor driving signal, and a thermal relaxation gap is constructed by using a motor commutation dead zone so as to synchronously block laser energy. Transient heat at the edge of a processing area is effectively induced to diffuse, the interface peak temperature is maintained below the oxidation critical point of a base body, and the problems of base material ablation and oxidation caused by light spot reversing staying are solved on the basis of guaranteeing pollutant stripping.

The invention relates to a laser device (10) for machining at least one workpiece (12) by means of at least one laser beam (14), in particular laser welding at least one workpiece, having the features of claim 1 and to a method for machining at least one workpiece (12) by means of at least one laser beam (14), in particular laser welding at least one workpiece, having the features of the dependent claims.

The invention relates to a laser device (10) for machining at least one workpiece (12) by means of at least two laser beams (14), in particular laser welding at least one workpiece, having the features of claim 1, and to a method for machining at least one workpiece (12) by means of at least two laser beams (14), in particular laser welding at least one workpiece, having the features of the additional independent claims.

The invention relates to a machining device (10) and a method for machining a workpiece (20), in particular a workpiece provided with cutting edges, by means of a high-energy machining beam (30), said machining device (10) comprising: a machining unit (40), a holder (50) and a base (60), wherein the holder (50) is arranged on the base (60) and the machining unit (40) is mounted on the holder (50) so as to be pivotable and / or rotatable about a pivot axis (70); said machining unit (40) comprising: a machining beam source (80) for generating and / or coupling the machining beam (30) into the machining unit (10), a deflection unit (90) by means of which the machining beam (30) can be deflected at different angles, and a beam path (100) of the machining beam (30), which extends between the machining beam source (80) and the deflection unit (90), wherein the entire beam path (100) between the machining beam source (80) and the deflection unit (90) is designed in such a way that, with a pivoting and / or rotating of the machining unit (10), it moves together with the machining unit (10) and a distance and an orientation of the entire beam path (100) between the machining beam source (80) and the deflection unit (90) remains constant (10) with respect to the pivot axis (70).

The invention relates to a method for manufacturing a timepiece part, comprising the following steps: obtaining a block to be processed; forming a timepiece component blank having a shape rotating about a rotation axis (A); wherein the method comprises the step of machining the blank with an eccentric laser beam, the direction of which is not parallel to the axis of rotation (A), does not intersect the axis of rotation (A) and is not tangent to the blank to be machined.

The invention discloses a multi-beam independent path laser microgroove machining method and device, and belongs to the technical field of laser machining. Comprising a laser light source, a shaping module, a beam splitting module, a scanning galvanometer module, a focusing module, a control module and a bearing platform for bearing a workpiece, the laser light source is located on one side of the shaping module and used for outputting a single beam of laser. The shaping module is used for shaping a single laser beam; according to the method, multiple spatially separated and parallel laser beams are obtained by splitting a single laser beam, the laser beams are guided to a corresponding number of preset independent machining paths through a control module, relative movement of the laser beams and a workpiece is controlled, and multiple independent microgroove structures which are not overlapped with one another are formed by multiple laser beams at the same time. The device meets the machining scene of two or more laser beams, is simple in structure and controllable in cost, has energy proportion adjustability and spacing adaptability, greatly improves the machining flexibility and efficiency, and is suitable for the field of precision machining.

A controller for a laser beam machine includes a display, a user interface, a processor, and a communication circuit. The display displays a first machining result indicating a machining result of a first product. The laser beam machine operates based on a first control command generated by a machining program. The user interface receives a first quantity that is an additional order quantity of the first product or a first instruction to change the first quantity. The user interface receives a start instruction for a nesting process to arrange the first quantity of the first product in at least one workpiece. The processor generates a second control command that causes the laser beam machine to produce the first quantity from the workpiece based on a result of the nesting process. The communication circuit transmits the second control command to the laser beam machine.

The invention relates to a method for operating a laser machine tool (10) for working a workpiece (12) by means of a laser beam (14), wherein, during the working of the workpiece (12), the laser beam (14) and a process gas (30, 32, 34) exit a nozzle unit (16) and are directed onto the workpiece (12) by means of the nozzle unit (16), wherein the process gas (30, 32, 34) can be selected from a plurality of process gases (30, 32, 34) by means of a gas control unit (24) and the selected process gas (30, 32, 34) is guided to the nozzle unit (16) via a pressure-control valve (58) of the gas control unit (24) in order to adjust a target pressure, wherein the method comprises: carrying out a test sequence, comprising: - selecting a process gas (30, 32, 34) from the plurality of process gases (30, 32, 34) by means of the gas control unit (24), - setting a target pressure curve for the selected process gas (30, 32, 34) by means of the pressure control valve (58), wherein the target pressure curve has a first target pressure value (74) for a first time period (72) and a second target pressure value (78) for a second time period (76), - measuring an actual pressure curve (82) at an outlet (62) of the pressure-control valve (58), - creating test data, wherein the test data contains information relating to the selected process gas (30, 32, 34), the target pressure curve (66) and the actual pressure curve (82); analysing the test data for the presence of an error.

A laser processing system for processing a workpiece using a laser beam comprises a laser processing head with at least one focusing optic for focusing the laser beam so that the workpiece is heated and process emission occurs; at least four optical sensors, wherein the optical sensors are insensitive to radiation with the wavelength of the laser beam and wherein the optical sensors are each configured to detect the process emission in at least one wavelength range that does not include the wavelength of the laser beam and to generate a respective sensor signal based thereon; and a control device, wherein the control device is configured to monitor the processing of the workpiece based on the average of the sensor signals.

The method of manufacturing a timepiece component includes: procuring a block to be machined; forming a timepiece component blank having a shape of revolution about a revolution axis (A); and machining the blank using an off-center laser beam the direction of which is not parallel to the revolution axis (A), does not cross the revolution axis (A) and is not tangential to the blank to be machined.

The application relates to the technical field of laser beam processing, in particular to a metal hard-seal butterfly valve bidirectional sealing surface laser cladding repair device. The device comprises a laser head, the laser head comprises a base head, the base head is fixedly connected to an execution end of a mechanical arm, a powder guide head is arranged at the bottom of the base head, the powder guide head is connected with a plurality of powder outlet ports of a powder feeder, a powder spraying head is arranged at the bottom of the powder guide head; a plurality of powder feeding channels are arranged between the powder guide head and the powder spraying head, the powder feeding end of the powder feeding channel is communicated with the powder feeder; a sleeve with a spiral slide is movably arranged on the outer wall of the powder spraying head, an axial movement adjustable distance adjusting assembly and a fixed stopper are arranged in the powder feeding channel to form an adjustable discharge gap, the sleeve can drive the distance adjusting assembly to move along the axial direction when the sleeve rotates, the discharge gap size is adjusted in real time according to the wear depth of different positions of the bidirectional sealing surface, and differential cladding of deep pit more filling and shallow pit less filling is realized.

The utility model discloses tube plate composite laser beam machining equipment, and relates to the field of laser cutting technologies, the tube plate composite laser beam machining equipment comprises an outer shell and an opening and closing door, a storage drawer is arranged on the lower portion of an inner cavity of the outer shell, a three-axis adjusting mechanism is arranged in the outer shell, the three-axis adjusting mechanism comprises an X-axis linear module, a Y-axis linear module is slidably arranged on one side of the X-axis linear module, and the Y-axis linear module is slidably arranged on the other side of the X-axis linear module; a Z-axis linear module is slidably arranged on one side of the Y-axis linear module, a dust removal device is slidably arranged on one side of the Z-axis linear module, a rotary feeding mechanism is arranged in an inner cavity of the outer shell and comprises a first platform support, a second bottom plate is fixedly arranged on one side of the first platform support, and a first bottom plate is arranged on one side of the second bottom plate. Driving motors are fixedly arranged on one side of the second bottom plate and one side of the first bottom plate correspondingly, and triangular chucks are fixedly arranged at the output ends of the driving motors correspondingly. According to the invention, the problems of single process and function, poor quality, unstable data, low precision, low yield, unstable structure and low accessibility and compatibility are improved.

The utility model discloses a cutting device for producing a flexible copper-clad plate, and relates to the technical field of laser beam processing, such as welding, cutting or punching. The flexible copper-clad plate production cutting device comprises a base, a fixing support is fixedly connected to the upper side of the base, a cutting assembly is fixedly connected to the upper side of the fixing support, a laser tool bit is installed on the lower side of the cutting assembly, a containing groove is formed in the upper side of the base, a connecting groove is formed in the base, and the lower side of the containing groove extends into the connecting groove. A discharging opening is formed in the front side of the base, the rear side of the discharging opening extends into the connecting groove, the bottom wall of the discharging opening is in an inclined shape with the front portion lower than the rear portion, and an auxiliary mechanism is arranged in the connecting groove. And therefore, the plate is not influenced by the fixing structure when being taken out, and the plate taking-out efficiency is improved.

The application provides a laser beam processing method of an aluminum-steel laser fusion brazing dot array high-entropy alloy transition layer, and steps include: constructing a dot array structure model of the aluminum-steel laser fusion brazing dot array high-entropy alloy transition layer; laying FeCoCrNiMn high-entropy alloy powder on a steel base by using a selective laser melting device; and performing laser processing on the FeCoCrNiMn high-entropy alloy powder according to the dot array structure model and path planning, so that the obtained aluminum-steel laser fusion brazing dot array high-entropy alloy transition layer is connected to an aluminum base. By using the application, the joint formed after the aluminum-steel laser fusion brazing dot array high-entropy alloy transition layer is connected to the base (parent material) has excellent performance and good forming quality.

This invention provides a laser processing lens and its application processing system, belonging to the field of laser beam processing technology. The lens comprises a negative lens group, a positive lens group, and a coupling component. These three components are coaxially arranged vertically with their optical axes coinciding with the incident laser, ensuring stable linear laser transmission. The negative lens group has a negative total optical power, which can diverge and expand the laser beam, increasing the beam divergence angle, balancing the converging effect of the positive lens group, shifting the reflected focus outward, and simultaneously generating negative spherical aberration to counteract the positive spherical aberration of the positive lens group. The positive lens group uses multiple low-power positive lenses arranged at intervals to gradually converge the beam. The lenses are made of materials with a low coefficient of thermal expansion to suppress thermal deformation and focus drift. An air buffer layer is placed between adjacent lenses to block heat conduction and disperse reflected light. The coupling component is located below, receiving the converged beam and coupling it with a high-pressure water jet. This invention can improve focus shift and reduce beam coupling efficiency while preventing the reflected focus from falling inside the lens.

A method for machining a workpiece to obtain a part having a desired geometry by a laser beam emitted by a laser head integrated in a machine tool, wherein the machine tool includes a laser source for emitting a laser beam, and the laser head includes an optical system for directing the laser beam onto the workpiece, wherein the optical system includes a plurality of mirrors for reflecting the laser beam emitted by the laser source, and a focal lens for passing through the reflected laser beam and focusing the laser beam to an ablation position on the workpiece to ablate the material at this position.

The adjusting device comprises a cylindrical device body, a first adjusting tool having a light transmission surface for use in confirming and adjusting the optical axis of first laser light, and a second adjusting tool which can be detachably arranged coaxially to the first adjusting tool on one end side of the device body and which has a movable link configured in the form of a needle such that the distal end region thereof shows the processing focal point of second laser light.The distance from the laser light emission port to the light transmission surface in a state in which the first adjustment tool has been positioned on the fixture body, and the distance from the laser light emission port to the distal end region of the movable limb in a state in which the second adjustment tool has been positioned on the fixture body, are set to the focal length of the processing focal point of the second laser light emitted by the scanner.

The present application provides a control method for a laser processing apparatus, and a laser processing system. The laser processing system includes a laser processing apparatus and an air pump. The laser processing apparatus includes an air supply channel connected to the air pump. The air pump is communicatively connected to the laser processing apparatus. The control method for the laser processing apparatus includes: (S10) acquiring processing task information and air pump configuration information of an air pump; (S20) starting a laser processing operation based on the processing task information and synchronously activating the air pump; and (S30) outputting an air pump adjustment instruction to the air pump based on the processing task information and the air pump configuration information, to adjust an air flow rate of the air pump during laser processing.

To surely and firmly manufacture a timepiece component having optimized mechanical properties.SOLUTION: A method for manufacturing a horological component, comprising the steps of: procuring a block to be machined, forming a horological component blank having a shape of revolution about an axis of revolution A, the method comprising the step consisting in machining the blank using an off-centre laser beam 11, the direction of which is not parallel to the axis of revolution, does not intersect the axis of revolution and is not tangential to the blank to be machined.SELECTED DRAWING: Figure 6

This laser machining equipment (100) comprises: a machining head (1) that irradiates a workpiece (7) with a laser beam; a focusing lens (2) provided inside the machining head (1) to focus the laser beam; a protective glass (3) provided inside the machining head (1), between the focusing lens (2) and the workpiece (7), to protect the focusing lens (2); and an automatic replacement device (4) having a storage container (4a) that can store a used protective glass (3A) and an unused protective glass (3B) before use, and a conveyance mechanism (4b) that conveys the protective glasses (3A, 3B) between the interior of the machining head (1) and the interior of the storage container (4a). The conveyance mechanism (4b) has a rotation mechanism (41) that rotates the protective glass (3) about a horizontal axis. The rotation mechanism (41) can change the orientation of the protective glass (3) so that the angle between a glass surface (3c) of the protective glass (3) and the vertical direction changes.

The invention relates to a laser machining system for machining a workpiece by means of a laser beam, comprising: a laser machining head having at least one focusing optics for focusing the laser beam such that the workpiece is heated and a process emission occurs; at least four optical sensors wherein the optical sensors are insensitive to radiation having a wavelength of the laser beam, and wherein the optical sensors are each arranged to detect the process emission in at least one wavelength range not including the wavelength of the laser beam and to generate a corresponding sensor signal based thereon; and a control device, the control device being arranged to monitor the machining of the workpiece on the basis of an average value of the sensor signals.