CN106041301A - Laser soldering device - Google Patents

Laser soldering device Download PDF

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Publication number
CN106041301A
CN106041301A CN201510561248.XA CN201510561248A CN106041301A CN 106041301 A CN106041301 A CN 106041301A CN 201510561248 A CN201510561248 A CN 201510561248A CN 106041301 A CN106041301 A CN 106041301A
Authority
CN
China
Prior art keywords
laser
laser light
light source
welder
irradiation
Prior art date
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.)
Pending
Application number
CN201510561248.XA
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Chinese (zh)
Inventor
小山泰典
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yi Ding Au Optronics Co
Original Assignee
Yi Ding Au Optronics Co
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Filing date
Publication date
Application filed by Yi Ding Au Optronics Co filed Critical Yi Ding Au Optronics Co
Publication of CN106041301A publication Critical patent/CN106041301A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1609—Visible light radiation, e.g. by visible light lasers
    • 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
    • B23K26/20—Bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1674—Laser beams characterised by the way of heating the interface making use of laser diodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • B29C65/425—Applying molten plastics, e.g. hot melt between pre-assembled parts characterised by the composition of the molten plastics applied between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7426—Tin or alloys of tin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74281—Copper or alloys of copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
    • B29C66/7465—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91216—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods enabling contactless temperature measurements, e.g. using a pyrometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1606—Ultraviolet [UV] radiation, e.g. by ultraviolet excimer lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Laser Beam Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention provides a laser soldering device which does not need to confirm a visible light source of a laser irradiation point, suppresses the output power at low power, and has a relatively simple structure. The laser soldering device includes a laser light source for emitting a laser light which is a visible light having a wavelength of 350 nm to 550 nm, wherein the output power of the laser light source is low power which is equal to or less than a predetermined value. Further, the laser light source is a blue laser diode, and the wavelength of the laser light is 430 nm to 460 nm. The invention has the beneficial effects of having no need of confirming the visible light source of the laser irradiation point, and being capable of suppressing the output power at low power.

Description

Laser welder
Technical field
The present invention is about a kind of welder, and carries out welding by laser light especially with regard to a kind of Laser welder.
Background technology
All the time, the laser welder carrying out welding by laser light is suggested successively.Such as, exist In JP 2001-47222 publication, the solder reflow method of a kind of coating fine rule by laser is proposed.Spy Open in 2001-47222 publication, in order to the laser removed by cover material irradiates and for the laser of solder reflow Irradiate, be the laser using wavelength different.Specifically, the laser in order to be removed by cover material is to use ripple The laser of a length of 532nm, and in order to the laser of solder reflow be use wavelength be the laser of 1064nm.
It is well known, however, that for the laser of solder reflow (comprising: welding), its wavelength is between 800nm～1100 Nm, is not visible ray.Therefore, in order to confirm laser point of irradiation, it is necessary to additionally arrange visible light light source, And high-power necessary infrared light laser must also be set, and this problem that can cause larger-scale unit.
Summary of the invention
In order to solve above-mentioned problem, a present invention wherein purpose is to provide a kind of easy laser welding dress Putting, output in order to confirm the visible light light source of laser point of irradiation, and can need not be suppressed in low-power by it.
Based on above-mentioned purpose and other purposes, the present invention provides a kind of laser welder, this laser welding dress Putting and include a laser light source, launch a laser light, the wavelength of this laser light is the visible light of 350nm～550nm, Wherein the output of this laser light source is the low-power below predetermined value.
In above-mentioned laser welder, laser light source is a blue laser diode, and this laser light Wavelength is 430nm～460nm.
In above-mentioned laser welder, the output of laser light is below 5W.
In above-mentioned laser welder, by controlling this laser light source, corresponding to the degree welded to this The point footpath of the point of irradiation of the output of laser light source and this laser light is optimized.
In above-mentioned laser welder, also including an infra-red thermometer, this infra-red thermometer is used for Measure the temperature of the point of irradiation of this laser light, wherein by measuring the temperature of the point of irradiation of this laser light, control The point footpath of the point of irradiation of the output of this laser light source and this laser light.
By the laser welder having laser light provided by the present invention, it is possible to provide ripple is longer than 350 The laser light of nm～550nm visible light scope, can be by the output power of laser light below predetermined value Low-power, and without the visible light light source for confirming laser point of irradiation.Therefore, the laser welding of the present invention Device is one can be by output suppression at low-power and relatively easy laser welder.
For above-mentioned purpose of the present utility model, feature and advantage more can be become apparent, hereafter will be with embodiment And coordinate institute's accompanying drawings, it is described in detail below.It is noted that each assembly in institute's accompanying drawings only shows Meaning, does not illustrate according to the actual ratio of each assembly.
Accompanying drawing explanation
Fig. 1 show the pie graph of the embodiment of the laser welder of the present invention.
Detailed description of the invention
Hereinafter, with reference to drawing, the kenel of the present invention will be specifically described.Refer to Fig. 1, shown in Fig. 1 For the pie graph of embodiment of the laser welder of the present invention, the laser welder in figure is for passing through laser And carry out the device welded.
Laser welder 1 include a device body 10, as laser light source a laser diode 30, comprise One optical system of lens 32 and infra-red thermometer 40.In device body 10, micro-in being internally provided with Computer (micro computer) 12, can be controlled the entirety of laser welder 1 by this micro computer 12. And, the control method of the present embodiment is to use micro computer 12 to realize, but as laser welder 1 All control methods, it is not absolutely required to use micro computer 12, it is possible to need not be soft for simple use hardware The control of part.Additionally, in micro computer 12, can be by RS232C adapter 12a and external interface connector 12b, to be connected with outside various input equipments (such as: keyboard).
Then, device body 10 will be specifically described.First, micro computer 12 connects a numeral mould Intending transducer (DA converter is called for short DAC) 14, this digital analog converter 14 is in order to by micro computer 12 institute The instruction of output is converted to analogue signal.(LD electric current sets the current settings that acts on of digital analog converter 14 Fixed), so that aftermentioned laser diode 30 is carried out output power and to be driven it, it passes through current buffer (current buffer) 16, and be connected with laser diode 30.And, for Detection & Controling laser two pole The laser electric current of pipe 30 and the feedback (feedback) that carries out, arrange an analog-digital converter (AD converter, It is called for short ADC) 24, for the laser electric current in detection laser diode 30.
The wavelength of the laser light that laser diode 30 is sent is the visible light between 350nm～550nm, and defeated Go out the low-power that power is below predetermined value.In such wave-length coverage, the main constituent of welding material (such as: The metal such as stannum, copper) reflectance be about 50%.Owing to reflectance is low, therefore absorb the heat change of laser light power Change efficiency will improve, also can efficiently dissolve welding material.Additionally, more specifically, laser two pole Pipe 30 preferably blue laser diode, laser light wavelength is between 430nm～460nm.Additionally, it is the most aftermentioned For why controlling the device of laser diode 30, the output of laser diode 30 is can to control at 5W Below.
As the optical system of irradiation welding position (point of irradiation P), there are lens 32,36.And, at thunder In the way of the light path penetrating light, it is provided with beam splitter (beam splitter) 34, the reflection light of light 1/100 can be penetrated Reflex to light sensitive diode (photo diode is called for short PD) 42.Light sensitive diode 42 is and analog-digital converter 22 are connected, and analog-digital converter 22 is the laser power for detecting device body 10, detected Laser power value is sent to micro computer 12.
And, as the micro computer 12 of control device, at laser electric current and the thunder of the laser light considered after measuring After penetrating the factor of power, set various key element (such as: the welding welding such as material, bonding area is necessary each Plant key element).Whereby, by the control to laser light source, can be corresponding to the degree of welding to this laser light source Output and the some footpath of point of irradiation P of this laser light be optimized.Also accordingly, it is capable to suppress the defeated of laser light Go out power, and reach optimal welding.
Additionally, the infrared temperature sensor that the temperature of the point of irradiation P of laser light can be measured by setting 40, and by being arranged at device body 10 and the analog-digital converter 20 for temperature detection, can be by infrared Temperature data detected by line temperature sensor 40 is sent to micro computer 12.Micro computer 12 is to detected After temperature accounts for, can be corresponding to the degree of welding to the output of this laser light source and this laser light The point footpath of point of irradiation P is optimized.Also accordingly, it is capable to suppress the output of laser light, and optimal weldering is reached Connect.
By above-mentioned laser welder 1, the wavelength of laser light is the visible light of 350nm～550nm, thunder The output penetrating light source is the low-power below predetermined value, and need not for confirming laser point of irradiation Visible light light source, and output suppresses in low-power, and structure is the simplest.In particular, heat Interconversion rate is higher, make point of irradiation P some footpath optimize, whereby can be only with known use 30W～100W Laser product 1/10 laser power just can weld.Additionally, due to use lower powered laser, Cooling mechanism can be made to simplify.
From the foregoing, it will be observed that by the laser welder of the present invention, just without use confirm laser point of irradiation can Depending on radiant, suppression output is low-power, and structure is relatively easy.
Above-described embodiment explanation merely for convenience and illustrate, though suffer person of ordinary skill in the field arbitrarily enter Row amendment, all without departing from the scope as protected in claims.

Claims (5)

1. a laser welder, is welded by laser, it is characterised in that this laser welding dress Putting and include a laser light source, launch a laser light, the wavelength of this laser light is the visible light of 350nm～550nm, Wherein the output of this laser light source is the low-power below predetermined value.
2. laser welder as claimed in claim 1, it is characterised in that this laser light source is a blue thunder Penetrate diode, and the wavelength of this laser light is 430nm～460nm.
3. laser welder as claimed in claim 1, it is characterised in that the output of this laser light For below 5W.
4. the laser welder as described in any one of claims 1 to 3, it is characterised in that by controlling This laser light source, corresponding to the degree output to this laser light source and the point of irradiation of this laser light of welding Some footpath be optimized.
5. laser welder as claimed in claim 4, it is characterised in that also include an infrared temperature Meter, this infra-red thermometer is for measuring the temperature of the point of irradiation of this laser light, wherein by measuring this laser The temperature of the point of irradiation of light, controls the some footpath of the output of this laser light source and the point of irradiation of this laser light.
CN201510561248.XA 2015-04-13 2015-09-07 Laser soldering device Pending CN106041301A (en)

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TW201636143A (en) 2016-10-16
TWI589383B (en) 2017-07-01
CN106042361A (en) 2016-10-26
JP2016198821A (en) 2016-12-01
TW201636144A (en) 2016-10-16

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Application publication date: 20161026