CN111940900B - Method and system for welding anti-tension component in wrist strap based on optical device - Google Patents
Method and system for welding anti-tension component in wrist strap based on optical device Download PDFInfo
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- CN111940900B CN111940900B CN202010762098.XA CN202010762098A CN111940900B CN 111940900 B CN111940900 B CN 111940900B CN 202010762098 A CN202010762098 A CN 202010762098A CN 111940900 B CN111940900 B CN 111940900B
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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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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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
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
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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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
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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
- B23K26/60—Preliminary treatment
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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
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
A method and system for optics-based welding of a tension resistant component within a wristband, the method comprising: the laser outputs a pulse laser beam; the light diffusion mirror performs diffusion control on the diameter of the pulse laser beam, and the diffused pulse laser beam enters a laser welding head; the laser welding head focuses the pulse laser beam on the welding area; rated pressure is applied to the vicinity of the welding area by the rated pressure output mechanism, so that the end part of the tensile folding part and the conductive workpiece are in full contact and slide; the temperature of the welding area is synchronously monitored by the temperature feed unit, and the temperature feed unit and the visual imaging unit are combined to monitor the laser welding quality; the visual imaging unit and the central control unit jointly detect the position of the welding point and control the welding position. The technical scheme provided by the invention has the advantages that the welding process is stable, the procedures of soldering flux, preheating and the like are not needed, the welding efficiency, the welding precision and the welding quality are obviously higher than those of manual soldering iron welding, and the cost of mass production of wristbands is greatly saved.
Description
Technical Field
The invention relates to the field of metal piece welding, in particular to a method and a system for welding a tensile-fold-resisting component in a wrist strap based on an optical device.
Background
Community correction is usually performed by using a positioning terminal with a communication function, such as a wrist strap, to bind with a person to be corrected. For the wrist band with the communication function, as long as the wrist band is worn on the person to be corrected at all times, the position of the wrist band is the position of the person to be corrected.
The wristband has two anti-kink members, such as wire cables, embedded in the wristband. Since this component also has the function of electrical conduction, it is necessary to solder the end of this component to the PCB.
However, the conventional soldering method still uses a soldering iron to burn the solder, which is not only inefficient, but also requires complicated soldering processes (e.g., preheating, etc.), and also requires consumables such as flux, resulting in poor stability of the quality of manual soldering.
Disclosure of Invention
The invention provides a method and a system for welding an anti-tension-folding component in a wrist strap based on an optical device, which aim to solve the problems of low efficiency, complex welding procedure, poor stability of welding quality and the like of the existing welding method.
To this end, according to a first aspect, an embodiment of the present invention discloses a method for welding a tensile-fold component in a wrist strap based on an optical device, including:
the laser outputs a pulse laser beam;
the light diffusion mirror performs diffusion control on the diameter of the pulse laser beam output by the laser, and the diffused pulse laser beam enters a laser welding head;
the laser welding head focuses the pulse laser beam on a welding area, the welding area comprises a welding point formed by the end part of the tensile and folding component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be electrically conducted to other parts after being welded with the end part of the tensile and folding component in the wrist strap;
rated pressure is applied to the vicinity of the welding area by a rated pressure output mechanism, so that the end part of the tensile folding part is in full contact with and slides on the conductive workpiece;
the temperature feeding unit synchronously monitors the temperature of the welding area and monitors the laser welding quality together with the visual imaging unit;
and the visual imaging unit and the central control unit jointly detect the position of the welding point and control the welding position.
Optionally, the parameters of the pulsed laser beam output by the laser are as follows: the central wavelength is 450 nm-2500 nm or 9500 nm-10000 nm, the average power is more than 12W, the repetition frequency is 2 Hz-8 MHz, the power is more than 12W, and the pulse duration is 20 fs-8 ms.
Optionally, the light diffusing mirror performs diffusion control on the diameter of the pulse laser beam output by the laser, and the diffused pulse laser beam enters the laser welding head, including:
the light diffusion mirror diffuses the diameter of the pulse laser beam output by the laser, and the diffused laser beam enters the laser welding head through the reflecting mirror.
Optionally, the laser welding head is mounted on a first vertical direction movement unit capable of moving up and down, the visual imaging unit is mounted on a second vertical direction movement unit capable of moving up and down, the first vertical direction movement unit and the second vertical direction movement unit are mounted on a linear electric control moving platform, and the linear electric control moving platform drives the laser welding head to move in the left and right directions, so that welding of the end part of the anti-bending part and the conductive workpiece is achieved.
Optionally, the laser welding head comprises a condenser and a coaxial temperature feed unit arranged on the condenser, the focal length of the condenser is 10 mm-9990 mm, and the heat radiation reflected light passes through the condenser and is transmitted to the temperature feed unit through a reflector.
Optionally, the visual imaging unit jointly detects the position information of the welding point with a central control unit, and controls the welding position, including:
the visual imaging unit is used for measuring the position of the welding point in advance and transmitting the position information measured in advance to a central control unit;
and the central control unit corrects the position of the welding point, adjusts the welding track according to the corrected position of the welding point and controls the welding position.
Optionally, the rated pressure output mechanism applies rated pressure to the vicinity of the welding area to enable the end of the tension-resistant part and the conductive workpiece to be in sufficient contact and slide, and the rated pressure output mechanism comprises:
when rated pressure is applied, the rated pressure output mechanism is in contact with the welding area, single-point pressure application or multi-point pressure application is performed, when laser welding is performed, a pressing wheel of the rated pressure output mechanism is in rolling contact along the left-right direction, the rated pressure output mechanism moves along with the linear electric control moving platform and is kept in front of the laser welding head in the welding moving direction;
the forehead pressure output mechanism can be controlled to lift, the distance between the forehead pressure output mechanism and the pressing position of the welding area is adjustable, and the forehead pressure applied to the surface near the welding area by the forehead pressure output mechanism in the vertical direction is adjustable.
Optionally, the temperature of the welding area is synchronously monitored by the temperature feed unit, and the laser welding quality is monitored by the temperature feed unit in combination with the visual imaging unit, including:
under the control of the central control unit, the temperature feed unit acquires the current temperature of the welding area, and the welding effect is judged according to the physical characteristics of the solder wire, the end part of the anti-bending component and the conductive workpiece;
the system is interconnected with the vision imaging unit to acquire the position information of a welding point, and is interconnected with the linear electric control mobile platform to control the motion start, stop and motion speed of the linear electric control mobile platform.
Optionally, the method further comprises:
the vision imaging unit moves up and down to adjust a focus of a vision image, collects position information of the welding point and transmits the position information to the central control unit, and the central control unit determines a laser welding track according to the collected position information of the welding point.
According to a second aspect, the embodiment of the invention discloses a system for welding an anti-tension component in a wrist strap based on an optical device, which comprises a laser, a light diffusion mirror, a laser welding head, a forehead pressure output mechanism, a temperature feed unit, a visual imaging unit and a central control unit, wherein the laser is arranged on the wrist strap;
the laser is used for outputting a pulse laser beam;
the light diffusion mirror is used for performing diffusion control on the diameter of the pulse laser beam output by the laser, and the diffused pulse laser beam enters the laser welding head;
the laser welding head is used for focusing the pulse laser beam to a welding area, the welding area comprises a welding point formed by the end part of the tensile and folding component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be conducted to other parts after being welded with the end part of the tensile and folding component in the wrist strap;
the rated pressure output mechanism is used for applying rated pressure to the vicinity of the welding area so as to enable the end part of the tensile folding part and the conductive workpiece to be in full contact and slide;
the temperature feedback unit is used for synchronously monitoring the temperature of the welding area and jointly monitoring the laser welding quality with the visual imaging unit;
and the visual imaging unit is used for jointly detecting the position information of the welding point with a central control unit and controlling the welding position.
According to the technical scheme provided by the invention, compared with the problems that the existing welding method is low in efficiency, complex in welding process, poor in stability of welding quality and the like due to the fact that soldering iron is manually used for fusing a solder wire, the technical scheme provided by the invention is that the light diffusion mirror performs diffusion control on the diameter of a pulse laser beam output by a laser, the diffused pulse laser beam enters a laser welding head, the laser welding head focuses the pulse laser beam on a welding area, a rated pressure is applied to the vicinity of the welding area by a rated pressure output mechanism, so that the end part of a tensile bending part and a conductive workpiece are fully contacted and slide, a temperature feed unit synchronously monitors the temperature of the welding area, and the temperature feed unit and a visual imaging unit jointly monitor the laser welding quality; the visual imaging unit and the central control unit jointly detect the position of the welding point and identify the position information of the welding point. Because each step of laser welding can both be by accurate control, consequently, not only welding process is stable, need not processes such as scaling powder and preheating, and efficiency, precision and the quality of welding are all showing to be higher than manual iron welding moreover, have saved each item cost of wrist strap volume production greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for welding a tension-resistant component in a wrist strap based on an optical device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for welding a tensile-fold component in a wristband based on an optical device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to overcome the defects of low efficiency, complex welding process, poor stability of welding quality and the like of the conventional welding mode when welding the anti-tension and-folding component in the wrist strap, the embodiment of the invention provides a method for welding the anti-tension and-folding component in the wrist strap based on an optical device, please refer to fig. 1, the method for welding the anti-tension and-folding component in the wrist strap based on the optical device comprises steps S101 to S106, which are described in detail as follows:
in step S101, the laser outputs a pulsed laser beam.
In the embodiment of the invention, the parameters of the pulse laser beam output by the laser are as follows: a center wavelength of 450nm to 2500nm or 9500nm to 10000nm (e.g., a center wavelength of 1500nm or 9800nm), an average power of more than 12W, a repetition frequency of 2Hz to 8MHz (e.g., a repetition frequency of 5MHz), a power of more than 12W, and a pulse duration of 20fs to 8ms (e.g., a pulse duration of 2 ms).
And S102, performing diffusion control on the diameter of the pulse laser beam output by the laser by using the light diffusion mirror, and enabling the diffused pulse laser beam to enter a laser welding head.
In the embodiment of the present invention, the light diffusion mirror is an important component of the light focusing system of the output optical path of the laser, and the light focusing system comprises the light diffusion mirror, the reflecting mirror and the laser welding head mentioned in the subsequent embodiment, which are arranged along the output optical path. The laser welding device comprises a laser, a light diffusion mirror, a reflector, a laser welding head and a laser welding head, wherein the light diffusion mirror diffuses the diameter of a pulse laser beam output by the laser, the diffused laser beam enters the laser welding head through the reflector, specifically, the pulse laser beam output by the laser passes through the light diffusion mirror to perform diffusion control on the diameter of the pulse laser beam, the pulse laser beam diffused by the light diffusion mirror enters the laser welding head through the reflector, and the laser welding head focuses the pulse laser beam on a welding area.
And S103, focusing a pulse laser beam on a welding area by a laser welding head, wherein the welding area comprises a welding point formed by the end part of the tensile and folding component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be conducted to other parts after being welded with the end part of the tensile and folding component in the wrist strap.
In the embodiment of the invention, the laser welding head comprises a condenser and a coaxial temperature feed unit arranged on the condenser, and the focal length of the condenser is 10 mm-9990 mm. Because the laser welding head is arranged on the first vertical direction moving unit which can move up and down, the laser welding head can be translated up and down to adjust the focus of the pulse laser beam and the spot size of the laser welding.
When the pulse laser beam is focused on the welding area, extremely strong laser energy density is formed in the welding area, and impurities of the soldering tin wire, the end part of the tensile folding component and the conductive workpiece in the welding area are directly gasified, so that the soldering tin wire, the end part of the tensile folding component and the conductive workpiece are tightly occluded.
And step S104, applying rated pressure to the vicinity of the welding area by the rated pressure output mechanism to ensure that the end part of the tensile folding component is in full contact with and slides on the conductive workpiece.
In the embodiment of the present invention, the rated pressure output mechanism is a mechanism in which: comprises a horizontal vertical crossing vertical frame, a direction guide plate and a direction guide rod, wherein the side surface of the horizontal vertical crossing vertical frame is vertically provided with the direction guide plate, the direction guide plate is vertically provided with a guide groove, a transverse plate of the horizontal vertical crossing vertical frame is provided with an axial hole, the direction guide rod is arranged in the axial hole, can slide up and down, a direction guide block is arranged at the upper end part of the direction guide rod and is matched in the direction guide groove of the direction guide plate, the device can slide up and down along the direction guide groove, an elastic part is sleeved on the lower section of the direction guide rod, a pinch roller seat is installed at the lower end part of the direction guide rod, the upper end of the elastic part is abutted against the lower bottom surface of a transverse plate of the horizontal vertical crossing vertical frame, the lower end of the elastic part is abutted against the pinch roller seat, a pinch roller is installed on the pinch roller seat, and the pinch roller seat is in driving connection with the horizontal vertical crossing vertical frame through an air cylinder to drive the pinch roller to move up and down.
As an embodiment of the present invention, the rated pressure applying mechanism applies rated pressure to the vicinity of the welding area to make the end of the tension-resistant member and the conductive workpiece fully contact and slide may be: when rated pressure is applied, the rated pressure output mechanism is in contact with a welding area, single-point pressure application or multi-point pressure application is performed, during laser welding, a pressing wheel of the rated pressure output mechanism is in rolling contact along the left-right direction, the rated pressure output mechanism moves along with the linear electric control moving platform and keeps being positioned in front of a laser welding head in the welding moving direction, namely, rated pressure in the vertical direction is applied to the surface near the welding area before welding, the rated pressure state is kept in the welding process, and the rated pressure output mechanism slides with the surface rated pressure of the welding area.
In the embodiment of the invention, the forehead pressure output mechanism can be controlled to lift, the distance between the forehead pressure output mechanism and the pressing position of the welding area can be adjusted, and the forehead pressure applied by the forehead pressure output mechanism to the surface near the welding area in the vertical direction can be adjusted.
And S105, synchronously monitoring the temperature of the welding area by the temperature feedback unit, and jointly monitoring the laser welding quality with the visual imaging unit.
As an embodiment of the present invention, the temperature of the welding area is synchronously monitored by the temperature feeding unit, and the monitoring of the laser welding quality by the temperature feeding unit and the visual imaging unit may be: under the control of the central control unit, the temperature feed unit collects the current temperature of a welding area, and the welding effect is judged according to the physical characteristics of the solder wire, the end part of the anti-bending component and the conductive workpiece; the temperature feedback unit is interconnected with the visual imaging unit, collects position information of welding points, is interconnected with the linear electric control mobile platform, and controls the motion start, stop and motion speed of the linear electric control mobile platform. The temperature of the welding area is monitored by the temperature feed unit, the heat radiation reflected light in the welding process is received, the heat radiation reflected light passes through the collecting mirror and is transmitted to the temperature feed unit through the reflecting mirror, and the temperature feed unit collects the welding heat radiation beam and converts the welding heat radiation beam into temperature information and calibrates the temperature of the welding area.
And S106, combining the visual imaging unit with the central control unit, detecting the position information of a welding point formed by the end part of the tension-resistant and folding component and the conductive workpiece, and controlling the welding position.
As an embodiment of the present invention, the visual imaging unit is mounted on a second vertical-direction moving unit that is movable up and down. The visual imaging unit and the central control unit jointly detect the position information of the welding point, and the control of the welding position can be as follows: the visual imaging unit is used for measuring the position of the butt welding point in advance and transmitting the position information measured in advance to the central control unit; and the central control unit corrects the position of the welding point, adjusts the welding track according to the corrected position of the welding point and controls the welding position.
It should be noted that, in the embodiment of the present invention, the central control unit is a control system that can implement synchronous control on the switching light of the laser and the linear electrically controlled platform, and can adjust the parameters (e.g., laser power, etc.) of the laser, the parameters (e.g., motion speed, etc.) of the motion platform, and can collect the data of the temperature feed unit to monitor the welding effect, and specifically, the central control unit is interconnected with the laser, controls the settings of the parameters, such as the switching of the laser, the power of the laser, and the like, and is interconnected with the temperature feed unit, collects the current temperature of the welding area, and further can judge the welding effect according to the physical characteristics of the solder wire, the end of the tensile bending component, and the conductive workpiece, and is interconnected with the visual imaging unit, collects the position information of the welding point, and is interconnected with the linear electrically controlled mobile platform, and controls the start and stop of the motion of the linear electrically controlled mobile platform, Setting parameters such as movement speed and the like.
In the above embodiment, the first vertical direction movement unit and the second vertical direction movement unit are installed on the linear electric control moving platform, and the linear electric control moving platform drives the laser welding head to move in the left-right direction, so as to weld the end part of the tension-resistant component and the conductive workpiece.
As can be known from the technical solution of the present invention illustrated in fig. 1, compared with the problems of low efficiency, complex welding process, poor stability of welding quality, etc. of the conventional welding method in which a soldering iron is manually used to fuse a solder wire, the technical solution provided by the present invention is that a light diffusion mirror performs diffusion control on the diameter of a pulse laser beam output by a laser, the diffused pulse laser beam enters a laser welding head, the laser welding head focuses the pulse laser beam on a welding area, a rated pressure is applied to the vicinity of the welding area by a rated pressure output mechanism, so that the end of a tension-resistant folding part and a conductive workpiece are fully contacted and slide, a temperature feed unit synchronously monitors the temperature of the welding area, and monitors the laser welding quality in combination with a vision imaging unit; the visual imaging unit and the central control unit jointly detect the position of the welding point and identify the position information of the welding point. Because each step of laser welding can both be by accurate control, consequently, not only welding process is stable, need not scaling powder and processes such as preheating, and efficiency, precision and the quality of welding are all showing to be higher than manual iron welding moreover, have saved each item cost of community correction wrist strap volume production greatly.
The embodiment of the present invention further discloses a system for welding an anti-tension and-folding component in a wrist strap based on an optical device, please refer to fig. 2, which is a schematic structural diagram of a system for welding an anti-tension and-folding component in a wrist strap based on an optical device disclosed in the embodiment of the present invention, the system for welding an anti-tension and-folding component in a wrist strap based on an optical device includes a laser 201, a light diffusing mirror 202, a laser welding head 203, a forehead pressure output mechanism 204, a temperature feeding unit 205, a visual imaging unit 206 and a central control unit 207, wherein:
a laser 201 for outputting a pulsed laser beam;
the light diffusion mirror 202 is used for performing diffusion control on the diameter of the pulse laser beam output by the laser 201, and the diffused pulse laser beam enters the laser welding head;
the laser welding head 203 is used for focusing the pulse laser beam output by the laser 201 to a welding area, wherein the welding area comprises a welding point formed by the end part of the anti-stretch-fold component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be conducted to other parts after being welded with the end part of the anti-stretch-fold component in the wrist strap;
a rated pressure output mechanism 204 for applying rated pressure to the vicinity of the welding area to make the end of the anti-bending part and the conductive workpiece fully contact and slide;
the temperature feeding unit 205 is used for synchronously monitoring the temperature of the welding area and monitoring the laser welding quality in combination with the visual imaging unit 206;
and a vision imaging unit 206, which is used for detecting the position information of the welding point in combination with the central control unit 207 and controlling the welding position.
In an alternative embodiment, the parameters of the pulsed laser beam output by laser 201 are as follows: the central wavelength is 450 nm-2500 nm or 9500 nm-10000 nm, the average power is more than 12W, the repetition frequency is 2 Hz-8 MHz, the power is more than 12W, and the pulse duration is 20 fs-8 ms.
In an alternative embodiment, the light diffusing mirror 202 is specifically configured to diffuse the diameter of the pulsed laser beam output by the laser 201, and the diffused laser beam enters the laser welding head 203 through the reflecting mirror.
In an alternative embodiment, the laser welding head 203 is mounted on a first vertical direction movement unit capable of moving up and down, the vision imaging unit 206 is mounted on a second vertical direction movement unit capable of moving up and down, the first vertical direction movement unit and the second vertical direction movement unit are mounted on a linear electric control movement platform, and the linear electric control movement platform drives the laser welding head 203 to move along the left and right direction, so that the welding of the end part of the anti-tension component and the conductive workpiece is realized.
In an alternative embodiment, the laser welding head includes a condenser lens and a temperature feed unit 205 coaxially disposed thereon, the focal length of the condenser lens is 10mm to 9990mm, and the heat radiation reflected light passes through the condenser lens and is transmitted to the temperature feed unit 205 through the reflecting mirror.
In an alternative embodiment, the vision imaging unit 206 is specifically configured to perform a pre-measurement on the position of the welding point, and transmit the pre-measured position information to the central control unit 207, where the central control unit 207 corrects the position of the welding point, adjusts the welding track according to the corrected position of the welding point, and controls the welding position.
In an alternative embodiment, the rated pressure output mechanism 204 is specifically configured to contact the welding area when applying rated pressure, apply pressure in a single point or multiple points, and during laser welding, a pressure wheel of the rated pressure output mechanism is in rolling contact in the left-right direction, and the rated pressure output mechanism travels along with the linear electrically controlled moving platform and remains in front of the laser welding head 203 in the welding travel direction.
In an alternative embodiment, the temperature feed unit 205 is specifically configured to collect a current temperature of a welding area under the control of the central control unit 207, determine a welding effect according to physical characteristics of a solder wire, an end of a tension-resistant component, and a conductive workpiece, and interconnect the temperature feed unit 205 and the visual imaging unit 206, collect position information of a welding point, interconnect the position information with the linear electrically-controlled moving platform, and control a start and a stop of movement and a movement speed of the linear electrically-controlled moving platform.
In an alternative embodiment, the vision imaging unit 206 illustrated in fig. 2 moves up and down to adjust the focus of the vision image, collects the position information of the welding point and transmits the position information of the welding point to the central control unit 207, so that the central control unit 207 determines the laser welding track according to the position information of the welding point.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed system/computing device and method may be implemented in other ways. For example, the system/computing device embodiments described above are merely illustrative, and for example, a division of modules or units is merely one logical division, and an actual implementation may have additional divisions, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes of the method of the embodiments described above can be implemented by a computer program, and the computer program of the welding method for the tension-resisting component in the community correction wristband can be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of the embodiments of the method described above can be implemented.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. A method of photo device based welding of a tension resistant component in a wristband, the method comprising:
the laser outputs a pulse laser beam; the parameters of the pulse laser beam output by the laser are as follows: the central wavelength is 450 nm-2500 nm or 9500 nm-10000 nm, the average power is more than 12W, the repetition frequency is 2 Hz-8 MHz, the power is more than 12W, and the pulse duration is 20 fs-8 ms;
the light diffusion mirror performs diffusion control on the diameter of the pulse laser beam output by the laser, and the diffused pulse laser beam enters the laser welding head;
the laser welding head focuses the pulse laser beam on a welding area, the welding area comprises a welding point formed by the end part of the tensile and folding component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be conducted to other parts after being welded with the end part of the tensile and folding component in the wrist strap;
rated pressure is exerted near the welding area by a rated pressure output mechanism, so that the end part of the tensile folding part is fully contacted and slid with the conductive workpiece, and the rated pressure output mechanism comprises: when rated pressure is applied, the rated pressure output mechanism is in contact with the welding area, single-point pressure application or multi-point pressure application is performed, when laser welding is performed, a pressing wheel of the rated pressure output mechanism is in rolling contact along the left-right direction, the rated pressure output mechanism moves along with the linear electric control moving platform and is kept in front of the laser welding head in the welding moving direction;
the temperature feeding unit synchronously monitors the temperature of the welding area and monitors the laser welding quality together with the visual imaging unit;
and the visual imaging unit and the central control unit jointly detect the position information of the welding point and control the welding position.
2. The method of claim 1, wherein said optical diffuser controls the diffusion of the diameter of the pulsed laser beam output by said laser, the diffused pulsed laser beam entering a laser weld head, comprising:
the light diffusion mirror diffuses the diameter of the pulse laser beam output by the laser, and the diffused laser beam enters the laser welding head through the reflecting mirror.
3. The method for welding an anti-tension component in a wrist strap based on an optical device as claimed in claim 1, wherein the laser welding head is mounted on a first vertical direction moving unit which can move up and down, the visual imaging unit is mounted on a second vertical direction moving unit which can move up and down, the first vertical direction moving unit and the second vertical direction moving unit are mounted on a linear electrically controlled moving platform, and the linear electrically controlled moving platform drives the laser welding head to move in the left and right directions, so as to weld the end part of the anti-tension component and the conductive workpiece.
4. The method for optical-based welding of an anti-kink component in a wristband according to claim 1, characterized in that the laser welding head comprises a condenser and a temperature feed unit coaxially disposed thereon, the focal length of the condenser being 10mm to 9990mm, the reflected heat radiation light passing through the condenser and being transmitted through the reflector to the temperature feed unit.
5. The method of light-based welding of a tension resistant component in a wristband as recited in claim 1, wherein the vision imaging unit in conjunction with a central control unit detects position information of the weld and controls the weld position, comprising:
the visual imaging unit is used for measuring the position of the welding point in advance and transmitting the position information measured in advance to a central control unit;
and the central control unit corrects the position of the welding point, adjusts the welding track according to the corrected position of the welding point and controls the welding position.
6. The method of photonic-based welding of anti-kink components in bracelets according to claim 4, wherein the temperature-feed unit monitors the temperature of the welding area synchronously, monitoring the laser welding quality in conjunction with a visual imaging unit, comprising:
under the control of the central control unit, the temperature feed unit acquires the current temperature of the welding area, and the welding effect is judged according to the physical characteristics of the solder wire, the end part of the anti-bending component and the conductive workpiece;
and the visual imaging unit is interconnected with the linear electric control mobile platform to control the motion start, stop and speed of the linear electric control mobile platform.
7. The method of photo-based welding of a tensile-fold component within a wristband as recited in claim 1, further comprising:
the vision imaging unit moves up and down to adjust a focus of a vision image, collects position information of the welding point and transmits the position information to the central control unit, and the central control unit determines a laser welding track according to the collected position information of the welding point.
8. A system for welding an anti-tension component in a wrist strap based on an optical device is characterized by comprising a laser, a light diffusion mirror, a laser welding head, a forehead pressure output mechanism, a temperature feed unit, a visual imaging unit and a central control unit;
the laser is used for outputting a pulse laser beam, and the parameters of the pulse laser beam output by the laser are as follows: the central wavelength is 450 nm-2500 nm or 9500 nm-10000 nm, the average power is more than 12W, the repetition frequency is 2 Hz-8 MHz, the power is more than 12W, and the pulse duration is 20 fs-8 ms;
the light diffusion mirror is used for performing diffusion control on the diameter of the pulse laser beam output by the laser, and the diffused pulse laser beam enters the laser welding head;
the laser welding head is used for focusing the pulse laser beam to a welding area, the welding area comprises a welding point formed by the end part of the tensile and folding component in the wrist strap and a conductive workpiece, and the conductive workpiece is a metal piece which can be conducted to other parts after being welded with the end part of the tensile and folding component in the wrist strap;
the rated pressure output mechanism is used for applying rated pressure to the vicinity of the welding area so as to enable the end part of the tensile folding part and the conductive workpiece to be in full contact and slide; the forehead pressure output mechanism is used for being in contact with a welding area when rated pressure is applied, single-point pressure application or multi-point pressure application is carried out, a pressing wheel of the forehead pressure output mechanism is in rolling contact along the left and right direction during laser welding, the forehead pressure output mechanism moves along with the linear electric control moving platform and is kept in front of a laser welding head in the welding moving direction;
the temperature feedback unit is used for synchronously monitoring the temperature of the welding area and jointly monitoring the laser welding quality with the visual imaging unit;
and the visual imaging unit is used for jointly detecting the position information of the welding point with a central control unit and controlling the welding position.
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| CN202010762098.XA CN111940900B (en) | 2020-07-31 | 2020-07-31 | Method and system for welding anti-tension component in wrist strap based on optical device |
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| CN114871582A (en) * | 2022-06-22 | 2022-08-09 | 天津市奥联特钢结构安装工程有限公司 | System and method for laser welding of plastic and metal |
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