CN114199899A - LED light bar insufficient solder detection device and detection method - Google Patents
LED light bar insufficient solder detection device and detection method Download PDFInfo
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- CN114199899A CN114199899A CN202111485114.6A CN202111485114A CN114199899A CN 114199899 A CN114199899 A CN 114199899A CN 202111485114 A CN202111485114 A CN 202111485114A CN 114199899 A CN114199899 A CN 114199899A
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
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Abstract
The invention provides a device and a method for detecting cold solder joint of an LED lamp strip, which comprises the following steps: the middle part of the main body is provided with a through cavity; the conveying module is arranged in the penetrating cavity; both ends of the conveying module protrude out of the surface of the side surface of the main body; the feeding module is detachably connected to one side of the main body, is positioned above one end of the surface of the output module, which protrudes out of the side surface of the main body, and is used for sequentially feeding the stacked LED lamp strips to the conveying module from the bottom to the top; the detection module is arranged in the middle of the penetrating cavity and used for clamping the LED lamp strip on the conveying module and detecting the LED lamp strip; the marking module is used for marking the position of the abnormal LED lamp assembly on the LED lamp strip detected by the detection module; and the control module is arranged on one side of the main body and is respectively and electrically connected with the conveying module, the feeding module, the detection module and the marking module. The LED lamp strip cold joint detection device provided by the invention realizes batch cold joint detection of LED lamp strips and improves the detection efficiency.
Description
Technical Field
The invention relates to the technical field of LED lamp strip cold joint detection, in particular to a device and a method for detecting cold joint of an LED lamp strip.
Background
At present, LED lamp strips are widely applied to the fields related to household lighting, automobile lighting and the like, LED lamp components are generally welded on strip-shaped circuit boards in the production of the LED lamp strips, and the welding quality of the LED lamp components is directly related to the quality of the LED lamp, so that the detection of the welding quality is particularly important, and particularly, whether the LED lamp strips have insufficient welding defects or not is detected.
Disclosure of Invention
One of the purposes of the invention is to provide a device for detecting cold solder joint of LED light bars, which realizes batch cold solder joint detection of the LED light bars and improves the detection efficiency.
The embodiment of the invention provides a device and a method for detecting cold solder joint of an LED lamp strip, which comprises the following steps:
the middle part of the main body is provided with a through cavity;
the conveying module is arranged in the penetrating cavity; both ends of the conveying module protrude out of the surface of the side surface of the main body;
the feeding module is detachably connected to one side of the main body, is positioned above one end of the surface of the output module, which protrudes out of the side surface of the main body, and is used for sequentially feeding the stacked LED lamp strips to the conveying module from the bottom to the top;
the detection module is arranged in the middle of the penetrating cavity and used for clamping the LED lamp strip on the conveying module and detecting the LED lamp strip;
the marking module is used for marking the position of the abnormal LED lamp assembly on the LED lamp strip detected by the detection module;
and the control module is arranged on one side of the main body and is respectively and electrically connected with the conveying module, the feeding module, the detection module and the marking module.
Preferably, the transport module comprises:
the conveying device comprises at least two rollers and a first conveying belt arranged on the periphery of the rollers;
the first conveyor belt includes: a plurality of transmission sheets which are connected end to end in sequence;
the middle part of the transmission piece is provided with a first groove capable of containing the LED lamp strip, the bottom of the first groove is provided with a strip-shaped through groove, and the first groove is in a cross shape.
Preferably, the feeding module comprises:
the middle part of the shell is provided with a storage cavity; the storage cavity penetrates through the shell from top to bottom;
the discharging mechanisms are arranged on two side walls of the storage cavity;
drop feed mechanism includes:
the periphery of the discharging wheel is provided with bulges in an array manner; the interval between two adjacent bulges is adaptive to the thickness of a circuit board of the LED lamp strips, and the width of each bulge is adaptive to the size of a gap formed by overlapping the two LED lamp strips; the upper part of the bulge is made of soft materials, the lower part of the bulge is made of hard materials, and the upper part is clamped with the lower part.
Preferably, the detection module comprises:
the accommodating cavity is arranged on the inner wall above the middle part of the penetrating cavity;
the upper detection body is fixedly arranged on the upper end surface of the accommodating cavity through a first telescopic mechanism;
the lower detection body is arranged in the middle of the conveying module and is positioned between the conveying part and the rotary part of the conveying belt of the conveying module;
the upper surface of the lower detection platform fixes a lower detection body through a second telescopic mechanism;
wherein, lower detection body includes:
the upper surface of the carrying platform is provided with a second groove;
the vibration platform is arranged in the second groove; a damping body is arranged between the side wall of the vibration platform and the side wall of the second groove; a plurality of damping springs are arranged between the bottom surface of the vibration platform and the bottom surface of the second groove;
the upper detection body comprises:
the detection cavities are open cavities and correspond to the LED lamp assemblies on the LED lamp strips one by one; at least two first cameras are arranged in each detection cavity; the first camera is arranged on the side wall of the detection cavity and close to the opening of the detection cavity; and a light intensity detection sensor is arranged at the bottom of each detection cavity.
Preferably, LED lamp strip rosin joint detection device still includes:
the image acquisition module is arranged on the upper end face of the penetrating cavity, is positioned between the feeding module and the detection module and is electrically connected with the control module;
the poking module is electrically connected with the control module, arranged on the upper end face of the through cavity and between the image acquisition module and the detection module;
the module of stirring includes:
the group of parallel first guide rails are arranged in a first accommodating cavity positioned on the upper end surface of the through cavity;
the two ends of the second guide rail are respectively arranged on the two first guide rails in a one-to-one corresponding sliding manner;
one end of the third telescopic mechanism is arranged on the second guide rail in a sliding manner; the telescopic direction of the third telescopic mechanism is vertical to the second guide rail;
the fixed end of the first rotating mechanism is fixedly connected with one end of the third telescopic mechanism, which is far away from the second guide rail; the rotating plane of the first rotating mechanism is vertical to the telescopic direction of the third telescopic mechanism;
the first connecting body is arranged in an inverted U shape, and the middle part of the upper end surface is fixedly connected with the rotating end of the first rotating mechanism;
the first motor is fixedly arranged on one side of the first connecting body;
one end of the first rotating shaft penetrates through one end of the first connecting body, close to the first motor, and is fixedly connected with an output shaft of the first motor, and the other end of the first rotating shaft is rotatably connected with one end of the first connecting body, far away from the first motor;
the movable claw body is arranged on the first rotating shaft in a sliding mode and is positioned between two ends of the first connecting body;
the first limiting body penetrates through the movable claw body and is connected with the movable claw body in a sliding manner; two ends of the first limiting body are fixedly connected with two ends of the first connecting body respectively;
two arc-shaped grooves which are symmetrically arranged are respectively and correspondingly arranged at the positions, close to the lower end, of one end, close to the first motor, of the first connecting body and the corresponding two sides of the movable claw body.
Preferably, the control module performs the following operations:
acquiring an image comprising a first transmission belt and an LED light bar thereon by an image acquisition module;
analyzing the image, and determining whether the LED light bar is upward and is positioned in the first groove;
when the LED lamp strip is not upward relative to one surface of the LED lamp component and is positioned in the first groove, the poking module is controlled to act based on a preset first control set, and the LED lamp strip is taken out of the first groove and placed on a second transmission belt which is arranged side by side with the first transmission belt; the transmission direction of the second transmission belt is opposite to that of the first transmission belt; one end of the second transmission belt, which is far away from the shifting module, protrudes out of the main body;
when the LED light bar is not upward from one surface of the LED lamp assembly and is not positioned in the first groove, analyzing the image to determine the position relation between the LED light bar and the first groove; acquiring a second control set based on the position relation and a preset first control library; controlling the movement of the poking module based on a second control set, and taking and placing the LED lamp strip on a second transmission belt;
when the LED lamp strip faces upwards from one side of the LED lamp assembly and is not positioned in the first groove, analyzing the image to determine the position relation between the LED lamp strip and the first groove; acquiring a third control set based on the position relation and a preset second control library; controlling the movement of the shifting module based on a third control set, and taking and placing the LED lamp strip into the first groove;
when the results of two consecutive image analyses indicate that the LED lamp strip is not upward of one surface of the LED lamp assembly, outputting first alarm information to an alarm module; the first alarm module alarms;
analyzing the image to determine the position relation between the LED lamp strip and the first groove; based on the position relation and a preset first control library, acquiring a second control set, wherein the method comprises the following steps:
analyzing the image, and determining a first coordinate of the center of the first groove, a second coordinate of the center of the LED lamp strip, a third coordinate of a first mark arranged at one end of the first groove, and a fourth coordinate of a second mark arranged at one end of the LED lamp strip, which is not the side where the LED lamp assembly is arranged;
determining a first vector based on the first coordinate and the third coordinate;
determining a second vector based on the second coordinate and the fourth coordinate;
determining a first offset angle of the LED light bar based on the first vector and the second vector;
determining the offset direction and the offset distance of the LED light bar based on the first coordinate and the second coordinate;
constructing a first calling set based on the first offset angle, the offset direction and the offset distance;
matching the first set of calls with a first set of parameters associated with respective second control sets within a preset first control library; obtaining a second control set associated with the first set of parameters matching the first recall set; the second control set includes: the control parameters of the first guide rail, the second guide rail, the third telescopic mechanism, the first rotating mechanism and the first motor are controlled by the control parameters of the first rotating mechanism;
analyzing the image to determine the position relation between the LED lamp strip and the first groove; obtaining a third control set based on the position relation and a preset second control library, wherein the third control set comprises:
analyzing the image, and determining a first coordinate of the center of the first groove, a second coordinate of the center of the LED light bar, a third coordinate of a first mark arranged at one end of the first groove, and a fifth coordinate of a third mark arranged at one end of one surface of the LED light assembly of the LED light bar; the position of the third mark is arranged corresponding to the position of the second mark;
determining a first vector based on the first coordinate and the third coordinate;
determining a third vector based on the second coordinate and the fifth coordinate;
determining a second offset angle of the LED light bar based on the first vector and the third vector;
determining the offset direction and the offset distance of the LED light bar based on the first coordinate and the second coordinate;
constructing a second calling set based on the second offset angle, the offset direction and the offset distance;
matching the second set of calls with a second set of parameters associated with respective third control sets within a preset second control library; obtaining a third control set associated with a second set of parameters matching the second recall set; the third control set includes: the control parameters of the first guide rail, the control parameters of the second guide rail, the control parameters of the third telescopic mechanism, the control parameters of the first rotating mechanism and the control parameters of the first motor.
Preferably, one end of the roller is fixedly provided with a fourth telescopic mechanism; one end of the fourth telescopic mechanism far away from the roller is fixedly connected with the rotating end of the second rotating mechanism; the fixed end of the second rotating mechanism is fixedly connected with one end of the connecting arm; one end of the connecting arm, which is far away from the second rotating mechanism, is fixedly connected with the main body;
the control module also performs the following operations:
when the images are analyzed for two times continuously, and it is determined that the LED light bar faces upwards from the LED lamp assembly and is not located in the first groove, calculating a first offset difference value of a second offset angle, a second offset difference value of an offset direction and a third offset difference value of an offset distance for two times;
when the first offset difference value is within a preset first threshold value, the second offset difference value is within a preset second threshold value, and the third offset difference value is within a preset third threshold value, constructing a first adjustment state set based on two times of second offset angles, offset directions and offset distances;
acquiring an adjusting library of a preset conveying module;
matching the first set of adjustment states with a second set of adjustment states associated with respective sets of adjustment parameters within the adjustment library; obtaining a set of adjustment parameters associated with a second set of adjustment states that matches the first set of adjustment states; adjusting the parameter set includes: control parameters of the fourth telescoping mechanism and control parameters of the second rotating mechanism.
Preferably, the labeling module comprises:
and the label attaching mechanism is used for attaching a label for marking the abnormal LED lamp assembly to the position of the abnormal LED lamp assembly on the LED lamp strip detected by the detection module.
Wherein, label attaching mechanism includes:
the group of parallel third guide rails are arranged in a second accommodating cavity positioned on the upper end surface of the through cavity;
the two ends of the fourth guide rail are respectively arranged on the two third guide rails in a one-to-one corresponding sliding manner;
one end of the fifth telescopic mechanism is arranged on the fourth guide rail in a sliding manner; the telescopic direction of the fifth telescopic mechanism is vertical to the fourth guide rail;
the fixed end of the third rotating mechanism is fixedly connected with one end of the fifth telescopic mechanism, which is far away from the fourth guide rail; the rotating plane of the third rotating mechanism is vertical to the telescopic direction of the fifth telescopic mechanism;
the suction platform is fixedly connected with the rotating end of the third rotating mechanism;
the vacuum chuck is arranged on the lower end face of the suction platform;
the label coil material feeding roller and the label coil material feeding roller are arranged beside the first conveying belt.
The invention also provides a method for detecting the cold solder joint of the LED lamp strip, which applies any one of the LED lamp strip cold solder joint detection devices and comprises the following specific steps:
one side of an LED lamp assembly of the LED lamp strip to be tested faces upwards, then stacking is carried out from top to bottom, and the third mark of each LED lamp strip is arranged on the same side;
the feeding module is detached from the main body, and the stacked LED light bars are placed in a storage cavity of the feeding module;
then loading the feeding module on the main body, and inputting a detection starting instruction through a touch screen on the main body; the control module receives a starting instruction through the touch screen and controls the feeding module to sequentially send the LED light bars to the conveying module; the conveying module acts to convey the LED lamp strip to the detection module for detection; the control module adopts the marking module to mark the position of the abnormal LED lamp assembly of the LED lamp strip based on the detection result of the detection module.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a device for detecting cold joint of an LED light bar according to an embodiment of the present invention;
FIG. 2 is a schematic view of a transmission sheet according to an embodiment of the present invention;
FIG. 3 is a schematic view of a feeder module according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a detection module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an embodiment of an LED light bar connected to a power supply during testing;
FIG. 6 is an enlarged view taken at A in FIG. 1;
FIG. 7 is a left side schematic view of the first connector of FIG. 6;
FIG. 8 is a schematic view of a roller connection according to an embodiment of the present invention;
fig. 9 is an enlarged view of fig. 1 at B.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a device for detecting the insufficient solder of an LED light bar 7, as shown in fig. 1, comprising:
the middle part of the main body 1 is provided with a through cavity 11;
the conveying module 2 is arranged in the through cavity 11; both ends of the conveying module 2 protrude from the surface of the side surface of the main body 1;
the feeding module 3 is detachably connected to one side of the main body 1, is positioned above one end of the output module, protruding out of the surface of the side face of the main body 1, and is used for sequentially feeding the stacked LED lamp strips 7 to the conveying module 2 from the bottom to the top;
the detection module 4 is arranged in the middle of the penetrating cavity 11 and used for clamping the LED lamp strip 7 on the conveying module 2 and detecting the LED lamp strip;
the marking module 5 is used for marking the position of the abnormal LED lamp assembly 72 on the LED lamp strip 7 detected by the detection module 4;
and the control module 6 is arranged on one side of the main body 1 and is respectively and electrically connected with the conveying module 2, the feeding module 3, the detection module 4 and the marking module 5.
The working principle and the beneficial effects of the technical scheme are as follows:
the worker puts the stacked LED light bars 7 into the feeding module 3, in order to facilitate the worker to put the stacked LED light bars 7 into the feeding module 3, the feeding module 3 is designed to be detachably connected with the main body 1, and a group of power contacts and a group of control contacts are arranged at the position where the feeding module 3 is detachably connected with the main body 1 and used for providing electric energy for the feeding module 3 and receiving control signals of the control module 6; the feeding module 3 sequentially feeds the stacked LED light bars 7 to the conveying module 2 from the bottom to the top; the conveying module 2 conveys the LED light bar 7, the LED light bar 7 is conveyed to the position below the detection module 4 for cold joint detection, the controller obtains a detection result through the detection module 4, when the LED light assembly 72 on the LED light bar 7 is detected to be abnormal in cold joint, the position of the LED light assembly 72 on the LED light bar 7 is determined, and the marking module 5 is adopted for marking the position; the marking module 5 can mark by adopting a laser coding and label attaching mode; the conveying module 2 is provided with the main body 1 with two protruding ends, so that the LED lamp strip 7 can fall on the conveying module 2 from the feeding module 3 conveniently, and the LED lamp strip 7 can fall on a conveying belt of an automatic production line after detection is facilitated. During the actual use, a LED lamp strip 7 rosin joint detection device is equipped with two feeding modules 3, uses in turn, realizes detection device's incessant detection.
In one embodiment, as shown in fig. 1 and 2, the transport module 2 comprises:
at least two rollers 21, and a first conveyor belt 22 disposed at the outer periphery of the rollers 21;
the first conveyor belt 22 includes: a plurality of transmission pieces 221 connected end to end in sequence;
the middle part of the transmission piece 221 is provided with a first groove 222 capable of accommodating the LED lamp strip 7, the bottom of the first groove 222 is provided with a strip-shaped through groove 223, and the first groove 222 is in a cross shape.
The working principle and the beneficial effects of the technical scheme are as follows:
the roller 21 rolls to drive the first transmission belt 22 to move, so that the LED light bars 7 on the first transmission belt 22 are conveyed; the LED light bar 7 is fed into the first groove 222 through the feeding module 3, and the first groove 222 is designed to be cross-shaped, so that the LED light bar 7 can be conveniently taken out of the first groove 222; the size of the strip-shaped through groove 223 is smaller than that of the first groove 222, so that the contact between the lower detection body 43 of the detection module 4 and the back of the LED light bar 7 is facilitated; the size of the first groove 222 is adapted to the size of the LED light bar 7, and as shown in fig. 5, a yielding hole 224 is formed on the side of the power interface 73 of the LED light bar 7; the power plug 75 of the detection module 4 is connected with the power interface 73 of the LED light bar 7 under the action of the sixth telescopic mechanism 74, so as to provide electric energy for the detection of the LED light bar 7.
In one embodiment, as shown in fig. 3, the feeding module 3 comprises:
a housing 31 having a storage chamber 32 formed in the middle thereof; the storage chamber 32 is arranged to penetrate the shell 31 from top to bottom;
the discharging mechanisms 33 arranged in an opposite array are arranged on two side walls of the storage cavity 32;
the discharge mechanism 33 includes:
the discharging wheel 331 is provided with protrusions 332 in an array manner on the periphery of the discharging wheel 331; the interval between two adjacent bulges 332 is adapted to the thickness of the circuit board 71 of the LED light bar 7, and the width of each bulge 332 is adapted to the size of the gap formed by overlapping two LED light bars 7; the upper part of the protrusion 332 is made of soft material, the lower part of the protrusion 332 is made of hard material, and the upper part and the lower part are clamped.
The working principle and the beneficial effects of the technical scheme are as follows:
in order to provide rotation power for the discharging wheels 331, the feeding module 3 includes two discharging motors, which are respectively in transmission connection with the two discharging wheels 331; the discharging wheels 331 are driven by the discharging motor to rotate, so that the LED light bars 7 are clamped in the space between two adjacent protrusions 332 corresponding to the two discharging wheels 331, and the protrusions 332 are used for separating two adjacent stacked LED light bars 7; the upper part of the protrusion 332 is made of a soft material, so that the hard material is prevented from directly contacting with the LED light bar 7 to scratch the surface of the LED light bar 7, and the soft material comprises rubber, silica gel and other materials; the lower part is made of hard material to provide a contact force for restraining the LED light bar 7 between the two discharge wheels 331, and the hard material is made of hard plastic, metal material, etc.
In one embodiment, as shown in fig. 1 and 4, the detection module 4 comprises:
an accommodation chamber 41 provided on an inner wall above the middle of the through chamber 11;
an upper detection body 42 fixedly provided on an upper end surface of the accommodation chamber 41 by a first telescopic mechanism 40;
a lower detecting body 43 arranged in the middle of the conveying module 2 and located between the conveying part and the turning part of the conveying belt of the conveying module 2;
a lower detection platform 45, the upper surface of which fixes the lower detection body 43 through a second telescopic mechanism 44;
wherein, the lower detection body 43 includes:
a loading platform 431, the upper surface of which is provided with a second groove 434;
a vibration platform 432 disposed in the second groove 434; a damping body 433 is arranged between the side wall of the vibration platform 432 and the side wall of the second groove 434; a plurality of damping springs 435 are arranged between the bottom surface of the vibration platform 432 and the bottom surface of the second groove 434;
the upper detection body 42 includes:
the detection cavities 421 are open cavities and correspond to the LED lamp assemblies 72 on the LED lamp strip 7 one by one; at least two first cameras 422 are arranged in each detection cavity 421; the first camera 422 is arranged on the side wall of the detection chamber 421 near the opening of the detection chamber 421; a light intensity detection sensor 423 is provided at the bottom of each detection chamber 421.
The working principle and the beneficial effects of the technical scheme are as follows:
when the LED light bar 7 in the first groove 222 is conveyed between the upper detection body 42 and the lower detection body 43, the upper detection body 42 and the lower detection body 43 clamp the LED light bar 7 in the middle under the action of the first telescopic mechanism 40 and the second telescopic mechanism 44 respectively; the detection is mainly divided into three stages, wherein the first stage is that an image of the welding position of the LED lamp assembly 72 and the circuit board 71 is shot through the first camera 422 in the process that the upper detection body 42 descends to the position for clamping the LED lamp bar 7, the image is matched with an image in a standard image library of insufficient soldering abnormity, and whether the insufficient soldering abnormity exists is determined; in the second stage, after the upper detection body 42 and the lower detection body 43 clamp the LED light bar 7, preset vibration is output through the vibration platform 432, images of the welding positions of the LED light assembly 72 and the circuit board 71 are synchronously and repeatedly shot through the first camera 422, the images are matched with images in a standard image library for solder joint abnormality, and whether the solder joint abnormality exists is determined; the third stage is to supply power to the LED light bar 7, change the supply voltage, and output vibration through the vibration platform 432; whether the LED lamp assembly 72 is turned on or not and whether the brightness changes abruptly (for example, on or off) or not are detected through the light intensity detection sensor, so as to find out whether the cold joint occurs or not, and the vibration platform 432 provides vibration to detect poor contact of the welding point and enlarge the influence of the tiny cold joint on the illumination of the LED lamp assembly 72. The light supplement is needed when the first camera 422 shoots so as to improve the definition of an image, and a light supplement lamp can be arranged beside the first camera 422.
In one embodiment, the device for detecting the cold joint of the LED light bar 7 further comprises:
the image acquisition module 8 is arranged on the upper end face of the through cavity 11, is positioned between the feeding module 3 and the detection module 4, and is electrically connected with the control module 6; the image acquisition module 8 includes: and a second camera. The image acquired by the image acquisition module 8 can be used for not only controlling the action of the toggle module 9, but also analyzing the detection of abnormalities such as welding position abnormality of the LED light bar 7;
the poking module 9 is electrically connected with the control module 6, is arranged on the upper end face of the through cavity 11 and is arranged between the image acquisition module 8 and the detection module 4;
as shown in fig. 6 and 7, the toggle module 9 includes:
a set of parallel first guide rails 91 disposed in the first accommodating chamber 90 located on the upper end surface of the through chamber 11;
two ends of the second guide rail 92 are respectively arranged on the two first guide rails 91 in a one-to-one corresponding sliding manner; the first guide rail 91 and the second guide rail 92 work together to realize the movement in the plane of the toggle module 9; the first guide rail 91 and the second guide rail 92 can both adopt screw rods driven by a motor;
a third telescopic mechanism 93, one end of which is slidably arranged on the second guide rail 92; the telescopic direction of the third telescopic mechanism 93 is perpendicular to the second guide rail 92; the third telescopic mechanism 93 realizes downward movement of the movable claw body 98 through extension so as to grab the LED light bar 7; the LED lamp strip 7 is retracted after being grabbed, so that the LED lamp strip 7 can move after being grabbed; the third telescopic mechanism 93 includes one of a telescopic cylinder, a telescopic electric cylinder, and the like;
a first rotating mechanism 94, a fixed end of which is fixedly connected with one end of the third telescopic mechanism 93 far away from the second guide rail 92; the rotation plane of the first rotation mechanism 94 is perpendicular to the expansion direction of the third expansion mechanism 93; the first rotating mechanism 94 is used for adjusting a grabbing angle when the LED light bar 7 is grabbed, so as to handle grabbing of the LED light bar 7 with different deflection angles; the first rotating mechanism 94 includes one of a rotating electric cylinder, a rotating air cylinder, and the like;
the first connecting body 95 is arranged in an inverted U shape, and the middle of the upper end surface is fixedly connected with the rotating end of the first rotating mechanism 94; the first connecting body 95 is a bracket for supporting the movable claw 98, the first limiting body 97 and the like;
a first motor 100 fixedly disposed at one side of the first connection body 95;
a first rotating shaft 96, one end of which penetrates through one end of the first connecting body 95 close to the first motor 100 and is fixedly connected with an output shaft of the first motor 100, and the other end of which is rotatably connected with one end of the first connecting body 95 far away from the first motor 100;
a movable claw body 98 slidably disposed on the first rotation shaft 96 and located between both ends of the first connection body 95; the first motor 100 rotates to drive the first rotating shaft 96 to rotate, so that the movable claw body 98 slides on the first rotating shaft 96; the first rotating shaft 96 is in threaded connection with the movable claw body 98, which is similar to the connection mode between a screw rod and a sliding platform in screw rod transmission;
a first restricting body 97 which is provided through the movable claw body 98 and slidably connected to the movable claw body 98; two ends of the first limiting body 97 are fixedly connected to two ends of the first connecting body 95 respectively; the first limiting body 97 limits the rotation between the movable claw body 98 and the first rotating shaft 96, so that the movable claw body 98 can slide on the first rotating shaft 96 in a translation manner;
two arc-shaped slots 99 are symmetrically disposed at positions corresponding to one end of the first connecting body 95 close to the first motor 100 and two corresponding sides of the movable claw body 98 close to the lower end. The arc-shaped groove 99 is designed to facilitate grabbing of the LED light bar 7;
wherein the control module 6 performs the following operations:
acquiring an image comprising the first conveyor belt 22 and the LED light bar 7 thereon by the image acquisition module 8;
analyzing the image to determine whether the LED light bar 7 is facing upward of the LED lamp assembly 72 and whether the LED light bar 7 is located in the first groove 222; one side of the LED lamp assembly 72 is a detection side, and is required to face upward;
when the LED light bar 7 is not upward from the side of the LED lamp assembly 72 and the LED light bar 7 is located in the first groove 222, controlling the movement of the toggle module 9 based on a preset first control set, and taking out the LED light bar 7 from the first groove 222 and placing the LED light bar 7 on a second transmission belt arranged side by side with the first transmission belt 22; the second conveyor belt is transported in a direction opposite to the first conveyor belt 22; one end of the second transmission belt far away from the toggle module 9 is arranged to protrude out of the main body 1; when the LED lamp assembly 72 is not facing upward, the LED light bar 7 is grabbed and conveyed back; when the LED light bar 7 is in the first groove 222, the operation of moving the LED light bar 7 from the first groove 222 to the second conveying belt can be completed only by controlling according to a preset first control set; the first control set is constructed in advance based on the positional relationship between the first grooves 222 and the second belt.
When the LED light bar 7 is not facing upward with the LED lamp assembly 72 and the LED light bar 7 is not located in the first groove 222, analyzing the image to determine the position relationship between the LED light bar 7 and the first groove 222; acquiring a second control set based on the position relation and a preset first control library; controlling the movement of the toggle module 9 based on the second control set, and taking and placing the LED light bar 7 on a second transmission belt; when the LED light bar 7 is not in the first groove 222, the position needs to be aligned for analysis, and the control of grabbing is determined according to the analyzed position relation; the grabbing of the LED lamp strips 7 at any positions is realized; the grabbing intelligence is improved; the first control library is constructed for analysis by previously capturing a plurality of data from the first conveyor belt 22 on which the LED lamp assemblies 72 are placed onto the second conveyor belt.
When the LED light bar 7 faces upward with the LED lamp assembly 72 and the LED light bar 7 is not located in the first groove 222, analyzing the image to determine the position relationship between the LED light bar 7 and the first groove 222; acquiring a third control set based on the position relation and a preset second control library; controlling the movement of the toggle module 9 based on the third control set, and taking and placing the LED light bar 7 into the first groove 222; when the LED lamp assembly 72 faces upward but is not in the first groove 222, the LED lamp assembly 72 needs to be righted into the first groove 222, so as to facilitate the detection of the detection module 4; the second control library is constructed for analysis by previously capturing a plurality of data from the first conveyor belt 22 for placement of the LED lamp assemblies 72 into the first recess 222.
When the results of two consecutive image analyses indicate that the LED light bar 7 is not upward of one surface of the LED lamp assembly 72, outputting first alarm information to an alarm module; the first alarm module alarms; the first alarm module comprises an audible and visual alarm, a display and the like; when the results of two consecutive image analyses indicate that the LED light bar 7 is not facing upward with the LED lamp assembly 72, the direction of the stacked LED lamp assemblies 72 may be misplaced when the worker puts the stacked LED lamp assemblies 72 into the feeding module 3, so that the worker needs to be warned to perform the processing. The first alarm information includes: the LED lamp strip 7 in the feeding module 3 is placed wrongly.
Analyzing the image to determine a position relationship between the LED light bar 7 and the first groove 222; based on the position relation and a preset first control library, acquiring a second control set, wherein the method comprises the following steps:
analyzing the image, and determining a first coordinate of the center of the first groove 222, a second coordinate of the center of the LED light bar 7, a third coordinate of the first mark arranged at one end of the first groove 222, and a fourth coordinate of the second mark arranged at one end of the LED light bar 7, which is not the side where the LED light assembly 72 is arranged;
determining a first vector based on the first coordinate and the third coordinate; the first vector points from the first coordinate to the third coordinate;
determining a second vector based on the second coordinate and the fourth coordinate; the second vector points from the second coordinate to the fourth coordinate;
determining a first offset angle of the LED light bar 7 based on the first vector and the second vector; the first deviation angle is the included angle between the first vector and the second vector;
determining the offset direction and the offset distance of the LED light bar 7 based on the first coordinate and the second coordinate; the offset direction is that the first coordinate points to the second coordinate; the offset distance is the distance between the first coordinate and the second coordinate;
constructing a first calling set based on the first offset angle, the offset direction and the offset distance; the first offset angle, the offset direction and the offset distance can be arranged in sequence to form a first calling set;
matching the first set of calls with a first set of parameters associated with respective second control sets within a preset first control library; obtaining a second control set associated with the first set of parameters matching the first recall set; the second control set includes: control parameters of the first guide rail 91, control parameters of the second guide rail 92, control parameters of the third telescopic mechanism 93, control parameters of the first rotating mechanism 94, and control parameters of the first motor 100; wherein, matching the first calling set with the first parameter set associated with each second control set in the preset first control library, the similarity between the first calling set and the first parameter set can be calculated by using the following similarity calculation formula:
wherein, the water-soluble polymer is a polymer,
representing a similarity of the first set of calls to the first set of parameters;
is the first of the first call set
A parameter value;
is the first parameter set
A parameter value;
a first parameter set parameter total or a first call set parameter total; when the calculated similarity is greater than a similarity threshold and is greatest within the first control store, it is determined that the first set of invocations matches the first set of parameters.
Analyzing the image to determine the position relationship between the LED light bar 7 and the first groove 222; obtaining a third control set based on the position relation and a preset second control library, wherein the third control set comprises:
analyzing the image, and determining a first coordinate of the center of the first groove 222, a second coordinate of the center of the LED light bar 7, a third coordinate of the first mark arranged at one end of the first groove 222, and a fifth coordinate of the third mark arranged at one end of one surface of the LED light bar 7 where the LED light assembly 72 is arranged; the position of the third mark is arranged corresponding to the position of the second mark;
determining a first vector based on the first coordinate and the third coordinate;
determining a third vector based on the second coordinate and the fifth coordinate; the third vector is that the second coordinate points to the fifth coordinate;
determining a second offset angle of the LED light bar 7 based on the first vector and the third vector;
determining the offset direction and the offset distance of the LED light bar 7 based on the first coordinate and the second coordinate;
constructing a second calling set based on the second offset angle, the offset direction and the offset distance;
matching the second set of calls with a second set of parameters associated with respective third control sets within a preset second control library; obtaining a third control set associated with a second set of parameters matching the second recall set; the third control set includes: control parameters of the first guide rail 91, control parameters of the second guide rail 92, control parameters of the third telescopic mechanism 93, control parameters of the first rotation mechanism 94, and control parameters of the first motor 100. The calling process of the third control set is the same as that of the second control set, and a description thereof is omitted;
in one embodiment, as shown in FIG. 8, a fourth telescoping mechanism 24 is fixedly disposed at one end; one end of the fourth telescopic mechanism 24 far away from the roller 21 is fixedly connected with the rotating end of the second rotating mechanism 25; the fixed end of the second rotating mechanism 25 is fixedly connected with one end of the connecting arm 23; one end of the connecting arm 23 far away from the second rotating mechanism 25 is fixedly connected with the main body 1;
the control module 6 also performs the following operations:
when the images are analyzed twice in succession, and it is determined that the LED light bar 7 is facing upward of the LED lamp assembly 72 and the LED light bar 7 is not located in the first groove 222, calculating a first offset difference of a second offset angle, a second offset difference of an offset direction, and a third offset difference of an offset distance twice;
when the first offset difference value is within a preset first threshold value, the second offset difference value is within a preset second threshold value, and the third offset difference value is within a preset third threshold value, constructing a first adjustment state set based on two times of second offset angles, offset directions and offset distances; the average value of each parameter of the two times can be taken to construct a first adjustment state set;
acquiring a preset adjusting library of the conveying module 2; the adjustment parameter set is manufactured by summarizing a large amount of test data.
Matching the first set of adjustment states with a second set of adjustment states associated with respective sets of adjustment parameters within the adjustment library; obtaining a set of adjustment parameters associated with a second set of adjustment states that matches the first set of adjustment states; adjusting the parameter set includes: control parameters of the fourth telescoping mechanism 24 and control parameters of the second rotating mechanism 25.
The working principle and the beneficial effects of the technical scheme are as follows:
by replacing the structural sizes of the upper detection body 42, the lower detection body 43, the first transmission belt 22 and the feeding module 3, the detection device can be applied to LED light bars 7 with different structures; but the conveying process after replacement needs to be synchronized again, because the replaced first conveying belt 22 has a deviation from the original position, the fine adjustment of the position of the first conveying belt 22 is realized through the embodiment, so that the LED light bar 7 can accurately fall into the first groove 222.
In one embodiment, the labeling module 5 comprises:
and the label attaching mechanism 51 is used for attaching a label indicating the abnormal LED lamp assembly 72 to the position of the abnormal LED lamp assembly 72 on the LED light bar 7 detected by the detection module 4.
As shown in fig. 9, the label attaching mechanism 51 includes:
a set of parallel third guide rails 511 disposed in the second accommodation chamber 50 located on the upper end surface of the through chamber 11;
the two ends of the fourth guide rail 512 are respectively arranged on the two third guide rails 511 in a one-to-one corresponding sliding manner;
a fifth telescopic mechanism 531, one end of which is slidably disposed on the fourth guide rail 512; the extension direction of the fifth extension mechanism 531 is perpendicular to the fourth guide rail 512;
a fixed end of the third rotating mechanism 514 is fixedly connected with one end of the fifth telescopic mechanism 531 far away from the fourth guide rail 512; the rotation plane of the third rotating mechanism 514 is perpendicular to the extending and retracting direction of the fifth extending and retracting mechanism 531;
the sucking platform 515 is fixedly connected with the rotating end of the third rotating mechanism 514;
a vacuum chuck 516 disposed on a lower end surface of the suction platform 515;
a label web feeding roller 21 and a label web feeding roller 21 are provided beside the first transfer belt 22.
The working principle and the beneficial effects of the technical scheme are as follows:
the label coiled material discharging roller 21 and the label coiled material discharging roller 21 realize the unfolding of the label coiled material and facilitate the suction of the label by the vacuum chuck 516; through the third guide rail 511, the fourth guide rail 512, the third rotating mechanism 514 and the vacuum chuck 516, the rosin joint abnormal label is sucked from the label roll and is attached to the corresponding position of the LED lamp assembly 72, so as to mark the rosin joint abnormality.
The invention also provides a method for detecting the cold solder joint of the LED light bar 7, which applies any one device for detecting the cold solder joint of the LED light bar 7 and comprises the following steps:
the LED lamp assembly 72 side of the LED lamp strip 7 to be tested faces upwards, then stacking is carried out from top to bottom, and the third mark of each LED lamp strip 7 is on the same side;
the feeding module 3 is detached from the main body 1, and the stacked LED light bars 7 are placed in the storage cavity 32 of the feeding module 3;
then, loading the feeding module 3 on the main body 1, and inputting a detection starting instruction through a touch screen on the main body 1; the control module 6 receives a starting instruction through the touch screen and controls the feeding module 3 to sequentially feed the LED light bars 7 to the conveying module 2; the conveying module 2 acts to convey the LED lamp strip 7 to the detection module 4 for detection; the control module 6 marks the position of the abnormal LED lamp assembly 72 of the LED light bar 7 by using the marking module 5 based on the detection result of the detection module 4.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a LED lamp strip rosin joint detection device which characterized in that includes:
the middle part of the main body is provided with a through cavity;
a delivery module disposed within the through cavity; both ends of the conveying module protrude out of the surface of the side surface of the main body;
the feeding module is detachably connected to one side of the main body, is positioned above one end, protruding out of the surface of the side face of the main body, of the output module, and is used for sequentially feeding the stacked LED lamp strips to the conveying module from the bottom to the top;
the detection module is arranged in the middle of the penetrating cavity and used for clamping the LED lamp strip on the conveying module and detecting the LED lamp strip;
the marking module is used for marking the position of the abnormal LED lamp assembly on the LED lamp strip detected by the detection module;
and the control module is arranged on one side of the main body and is respectively and electrically connected with the conveying module, the feeding module, the detection module and the marking module.
2. The LED light bar cold solder joint detection device of claim 1, wherein the conveying module comprises:
the conveying device comprises at least two rollers and a first conveying belt arranged on the periphery of the rollers;
the first conveyor belt includes: a plurality of transmission sheets which are connected end to end in sequence;
the middle part of the transmission piece is provided with a first groove capable of containing the LED lamp strip, the bottom of the first groove is provided with a strip-shaped through groove, and the first groove is in a cross shape.
3. The LED light bar cold solder joint detection device of claim 2, wherein the feeding module comprises:
the middle part of the shell is provided with a storage cavity; the storage cavity penetrates through the shell from top to bottom;
the discharging mechanisms are arranged in an opposite array mode and are arranged on two side walls of the storage cavity;
the drop feed mechanism includes:
the periphery of the discharging wheel is provided with bulges in an array manner; the interval between two adjacent bulges is adapted to the thickness of the circuit board of the LED lamp strip, and the width of each bulge is adapted to the size of a gap formed by overlapping two LED lamp strips; the upper portion of the protrusion is made of soft materials, the lower portion of the protrusion is made of hard materials, and the upper portion and the lower portion are clamped.
4. The LED light bar cold solder joint detection device of claim 2, wherein the detection module comprises:
the accommodating cavity is arranged on the inner wall above the middle part of the penetrating cavity;
the upper detection body is fixedly arranged on the upper end face of the accommodating cavity through a first telescopic mechanism;
the lower detection body is arranged in the middle of the conveying module and is positioned between the conveying part and the rotary part of the conveying belt of the conveying module;
the upper surface of the lower detection platform fixes the lower detection body through a second telescopic mechanism;
wherein, the lower detection body comprises:
the upper surface of the carrying platform is provided with a second groove;
the vibration platform is arranged in the second groove; a damping body is arranged between the side wall of the vibration platform and the side wall of the second groove; a plurality of damping springs are arranged between the bottom surface of the vibration platform and the bottom surface of the second groove;
the upper detection body comprises:
the detection cavities are open cavities and correspond to the LED lamp assemblies on the LED lamp strips one by one; at least two first cameras are arranged in each detection cavity; the first camera is arranged on the side wall of the detection cavity and close to the opening of the detection cavity; and a light intensity detection sensor is arranged at the bottom of each detection cavity.
5. The LED light bar cold solder joint detection device of claim 2, further comprising:
the image acquisition module is arranged on the upper end face of the penetrating cavity, is positioned between the feeding module and the detection module, and is electrically connected with the control module;
the poking module is electrically connected with the control module, is arranged on the upper end face of the through cavity and is arranged between the image acquisition module and the detection module;
the toggle module comprises:
the group of parallel first guide rails are arranged in a first accommodating cavity positioned on the upper end surface of the through cavity;
the two ends of the second guide rail are respectively arranged on the two first guide rails in a one-to-one corresponding sliding manner;
one end of the third telescopic mechanism is arranged on the second guide rail in a sliding manner; the telescopic direction of the third telescopic mechanism is vertical to the second guide rail;
a fixed end of the first rotating mechanism is fixedly connected with one end of the third telescopic mechanism far away from the second guide rail; the rotating plane of the first rotating mechanism is vertical to the telescopic direction of the third telescopic mechanism;
the first connecting body is arranged in an inverted U shape, and the middle part of the upper end face of the first connecting body is fixedly connected with the rotating end of the first rotating mechanism;
the first motor is fixedly arranged on one side of the first connecting body;
one end of the first rotating shaft penetrates through one end, close to the first motor, of the first connecting body and is fixedly connected with an output shaft of the first motor, and the other end of the first rotating shaft is rotatably connected with one end, far away from the first motor, of the first connecting body;
the movable claw body is arranged on the first rotating shaft in a sliding mode and is positioned between two ends of the first connecting body;
the first limiting body penetrates through the movable claw body and is connected with the movable claw body in a sliding manner; two ends of the first limiting body are fixedly connected with two ends of the first connecting body respectively;
the two arc-shaped grooves are symmetrically arranged and respectively and correspondingly arranged at the positions, close to the lower end, of one end, close to the first motor, of the first connecting body and the positions, close to the lower end, of the two corresponding sides of the movable claw body.
6. The LED light bar cold solder joint detection device of claim 5, wherein the control module performs the following operations:
acquiring an image comprising the first transmission belt and the LED light bar thereon by the image acquisition module;
analyzing the image, and determining whether the LED light bar is upward of one surface of an LED lamp assembly and whether the LED light bar is positioned in the first groove;
when the LED light bar is not upward relative to one surface of an LED lamp assembly and is positioned in the first groove, controlling the movement of the toggle module based on a preset first control set, and taking out the LED light bar from the first groove and placing the LED light bar on a second transmission belt which is arranged side by side with the first transmission belt; the conveying direction of the second conveying belt is opposite to that of the first conveying belt; one end, far away from the poking module, of the second transmission belt protrudes out of the main body;
when the LED light bar is not positioned in the first groove and the side of the LED light bar is upward, analyzing the image to determine the position relation between the LED light bar and the first groove; acquiring a second control set based on the position relation and a preset first control library; controlling the movement of the shifting module based on the second control set, and taking and placing the LED lamp strip on the second transmission belt;
when the LED light bar faces upwards and is not positioned in the first groove, analyzing the image to determine the position relation between the LED light bar and the first groove; acquiring a third control set based on the position relation and a preset second control library; controlling the shifting module to act based on the third control set, and taking and placing the LED lamp strip into the first groove;
when the results of the two successive image analyses indicate that the LED lamp bar is not upward relative to the side of the LED lamp assembly, outputting first alarm information to an alarm module; the first alarm module alarms;
analyzing the image to determine the position relation between the LED lamp bar and the first groove; based on the position relation and a preset first control library, acquiring a second control set, wherein the method comprises the following steps:
analyzing the image, and determining a first coordinate of the center of the first groove, a second coordinate of the center of the LED lamp bar, a third coordinate of a first mark arranged at one end of the first groove, and a fourth coordinate of a second mark arranged at one end of the LED lamp bar, which is not the side where the LED lamp assembly is arranged;
determining a first vector based on the first coordinate and the third coordinate;
determining a second vector based on the second coordinate and the fourth coordinate;
determining a first offset angle of the LED light bar based on the first vector and the second vector;
determining the offset direction and the offset distance of the LED light bar based on the first coordinate and the second coordinate;
constructing a first calling set based on the first offset angle, the offset direction and the offset distance;
matching the first set of calls with a first set of parameters associated with respective second control sets within a preset first control library; retrieving the second control set associated with the first set of parameters that matches the first set of calls; the second control set includes: the control parameters of the first guide rail, the control parameters of the second guide rail, the control parameters of the third telescopic mechanism, the control parameters of the first rotating mechanism and the control parameters of the first motor;
analyzing the image to determine the position relation between the LED lamp bar and the first groove; based on the position relation and a preset second control library, acquiring a third control set, comprising:
analyzing the image, and determining a first coordinate of the center of the first groove, a second coordinate of the center of the LED lamp bar, a third coordinate of a first mark arranged at one end of the first groove, and a fifth coordinate of a third mark arranged at one end of one surface of the LED lamp assembly of the LED lamp bar; the position of the third mark is arranged corresponding to the position of the second mark;
determining a first vector based on the first coordinate and the third coordinate;
determining a third vector based on the second coordinate and the fifth coordinate;
determining a second offset angle of the LED light bar based on the first vector and the third vector;
determining the offset direction and the offset distance of the LED light bar based on the first coordinate and the second coordinate;
constructing a second calling set based on the second offset angle, the offset direction and the offset distance;
matching the second set of calls with a second set of parameters associated with respective third control sets within a preset second control library; obtaining the third control set associated with the second set of parameters that matches the second set of calls; the third control set includes: the control parameters of the first guide rail, the control parameters of the second guide rail, the control parameters of the third telescopic mechanism, the control parameters of the first rotating mechanism and the control parameters of the first motor.
7. The LED light bar cold solder joint detection device of claim 6, wherein a fourth telescoping mechanism is fixedly arranged at one end of the roller; one end of the fourth telescopic mechanism, which is far away from the roller, is fixedly connected with the rotating end of the second rotating mechanism; the fixed end of the second rotating mechanism is fixedly connected with one end of the connecting arm; one end of the connecting arm, which is far away from the second rotating mechanism, is fixedly connected with the main body;
the control module further performs the following operations:
when the images are analyzed twice continuously, and it is determined that the LED light bar faces upwards from one face of an LED lamp assembly and is not located in the first groove, calculating a first offset difference value of the second offset angle, a second offset difference value of the offset direction and a third offset difference value of the offset distance twice;
when the first offset difference value is within a preset first threshold value, the second offset difference value is within a preset second threshold value, and the third offset difference value is within a preset third threshold value, constructing a first adjustment state set based on the second offset angle, the offset direction and the offset distance twice;
acquiring a preset adjusting library of the conveying module;
matching the first set of adjustment states with a second set of adjustment states associated with respective sets of adjustment parameters within the adjustment library; obtaining the set of adjustment parameters associated with the second set of adjustment states that match the first set of adjustment states; the adjusting the parameter set comprises: and the control parameters of the fourth telescopic mechanism and the control parameters of the second rotating mechanism.
8. The LED light bar cold solder joint detection device of claim 1, wherein the indication module comprises:
and the label attaching mechanism is used for attaching a label for marking an abnormal LED lamp assembly to the position of the abnormal LED lamp assembly on the LED lamp strip detected by the detection module.
9. The LED light bar cold solder joint detection device of claim 8, wherein the label attaching mechanism comprises:
the group of parallel third guide rails are arranged in a second accommodating cavity positioned on the upper end surface of the through cavity;
the two ends of the fourth guide rail are respectively arranged on the two third guide rails in a one-to-one corresponding sliding manner;
one end of the fifth telescopic mechanism is arranged on the fourth guide rail in a sliding manner; the telescopic direction of the fifth telescopic mechanism is vertical to the fourth guide rail;
a fixed end of the third rotating mechanism is fixedly connected with one end of the fifth telescopic mechanism, which is far away from the fourth guide rail; the rotating plane of the third rotating mechanism is perpendicular to the telescopic direction of the fifth telescopic mechanism;
the suction platform is fixedly connected with the rotating end of the third rotating mechanism;
the vacuum chuck is arranged on the lower end face of the suction platform;
and the label coil material discharging roller are arranged beside the first conveying belt.
10. A method for detecting cold joint of an LED light bar, which is characterized by applying the device for detecting cold joint of an LED light bar according to any one of claims 1 to 9, and comprises the following steps:
one side of an LED lamp assembly of the LED lamp strip to be tested faces upwards, then stacking is carried out from top to bottom, and the third mark of each LED lamp strip is arranged on the same side;
the feeding module is detached from the main body, and the stacked LED light bars are placed in a storage cavity of the feeding module;
then loading the feeding module to the main body, and inputting a detection starting instruction through a touch screen on the main body; the control module receives the starting instruction through the touch screen and controls the feeding module to sequentially send the LED light bars to the conveying module; the conveying module acts to convey the LED lamp strip to the detection module for detection; and the control module adopts the marking module to mark the abnormal position of the LED lamp assembly of the LED lamp strip based on the detection result of the detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111485114.6A CN114199899A (en) | 2021-12-07 | 2021-12-07 | LED light bar insufficient solder detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111485114.6A CN114199899A (en) | 2021-12-07 | 2021-12-07 | LED light bar insufficient solder detection device and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114199899A true CN114199899A (en) | 2022-03-18 |
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ID=80651032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111485114.6A Pending CN114199899A (en) | 2021-12-07 | 2021-12-07 | LED light bar insufficient solder detection device and detection method |
Country Status (1)
| Country | Link |
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| CN (1) | CN114199899A (en) |
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2021
- 2021-12-07 CN CN202111485114.6A patent/CN114199899A/en active Pending
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Application publication date: 20220318 |