CN111811413A - Assembly position detection system and method - Google Patents
Assembly position detection system and method Download PDFInfo
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- CN111811413A CN111811413A CN202010948768.7A CN202010948768A CN111811413A CN 111811413 A CN111811413 A CN 111811413A CN 202010948768 A CN202010948768 A CN 202010948768A CN 111811413 A CN111811413 A CN 111811413A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/081—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines
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- Lens Barrels (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of module assembly, and discloses an assembly position detection system and an assembly position detection method, wherein the assembly position detection system comprises: absorb through the suction nozzle part and treat the equipment screen, and remove each part through the axle subassembly, treat by lower laser displacement sensor and assemble the screen and carry out the height finding, treat the equipment lens cone by last laser sensor and carry out the height finding, calculate according to each item data in the testing process and treat the target axle subassembly position that the axle subassembly corresponds when assembling the initial position of equipment screen and the equipment lens cone, thereby carry out the module equipment according to the target axle subassembly position, be convenient for look for suitable equipment position, and then improved the packaging efficiency.
Description
Technical Field
The invention relates to the technical field of module assembly, in particular to an assembly position detection system and method.
Background
The glasses module in the VR glasses is divided into a screen and a lens cone, and when the screen and the lens cone are assembled, a proper assembling position needs to be found for assembling the screen and the lens cone. However, the current technology is complex in the mode of determining the assembling position and low in precision.
The above-mentioned contents are only for assisting understanding of the technical scheme of the present invention, and do not represent an admission that the above-mentioned contents are
The prior art is provided.
Disclosure of Invention
The invention mainly aims to provide an assembly position detection system and method, and aims to solve the technical problem that a proper assembly position is difficult to find when a module is assembled in the prior art.
To achieve the above object, the present invention provides an assembly position detecting system including: the device comprises a suction nozzle component, a shaft component, a controller, a lower laser displacement sensor and an upper laser displacement sensor;
the suction nozzle component is used for sucking a screen to be assembled;
the shaft assembly is used for moving the screen to be assembled, which is sucked by the suction nozzle component, to a preset laser height measurement position so as to determine the position of a first shaft assembly and sending the position of the first shaft assembly to the controller;
the lower laser displacement sensor is used for measuring the height of the screen to be assembled so as to obtain a first distance parameter, and sending the first distance parameter to the controller;
the shaft assembly is further used for moving the upper laser displacement sensor to a preset upper laser height measurement position so as to determine the position of a second shaft assembly and sending the position of the second shaft assembly to the controller;
the upper laser displacement sensor is used for measuring the height of the lens barrel to be assembled so as to obtain a second distance parameter and sending the second distance parameter to the controller;
the controller is used for calculating the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembling starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter.
Optionally, the shaft assembly is further configured to move the upper laser displacement sensor to a preset lower laser height measurement position;
the lower laser displacement sensor is also used for measuring the distance of an upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter and sending the third distance parameter to the controller;
the controller is further used for carrying out laser calibration based on the third distance parameter so as to obtain a reference value;
the controller is further configured to calculate a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value.
Optionally, the controller is further configured to adjust the position of the shaft assembly until the third distance parameter is 0, record a position of a third shaft assembly corresponding to the shaft assembly when the third distance parameter is 0, detect an actual distance from a light emitting point of the lower laser displacement sensor to the housing of the upper laser displacement sensor, and determine a reference value according to the actual distance.
Optionally, the controller is further configured to set a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at the initial assembly positions, and perform a compensation value test according to the gap value and the initial compensation value to determine a target compensation value;
the controller is further configured to calculate a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value and a preset initial clearance value.
Optionally, the shaft assembly is further configured to move the screen to be assembled, which is sucked by the suction nozzle component, to a lens barrel tooling position according to the target shaft assembly position for alignment;
the controller is further used for controlling the shaft assembly to step upwards, shooting a picture to be detected in the stepping process through a camera, detecting the picture definition of the picture to be detected, determining a target assembly position according to the picture definition, and determining a target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position.
In addition, in order to achieve the above object, the present invention further provides an assembly position detection method based on an assembly position detection system, the assembly position detection system including: the assembly position detection method comprises the following steps of:
the suction nozzle component sucks a screen to be assembled;
the shaft assembly moves the screen to be assembled sucked by the suction nozzle component to a preset laser height measurement position so as to determine the position of a first shaft assembly, and the position of the first shaft assembly is sent to the controller;
the lower laser displacement sensor is used for measuring the height of the screen to be assembled so as to obtain a first distance parameter, and the first distance parameter is sent to the controller;
the shaft assembly moves the upper laser displacement sensor to a preset upper laser height measurement position so as to determine the position of a second shaft assembly, and the position of the second shaft assembly is sent to the controller;
the upper laser displacement sensor is used for measuring the height of the lens barrel to be assembled so as to obtain a second distance parameter, and the second distance parameter is sent to the controller;
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter.
Optionally, before the suction nozzle component sucks the screen to be assembled, the method further includes:
the shaft assembly moves the upper laser displacement sensor to a preset lower laser height measurement position;
the lower laser displacement sensor measures the distance of an upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter, and sends the third distance parameter to the controller;
the controller performs laser calibration based on the third distance parameter to obtain a reference value;
correspondingly, the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter, and the method comprises the following steps:
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly initial position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value.
Optionally, the controller performs laser calibration based on the third distance parameter to obtain a reference value, including:
the controller adjusts the position of the shaft assembly until the third distance parameter is 0, records the position of the third shaft assembly corresponding to the shaft assembly when the third distance parameter is 0, detects the actual distance from the light emitting point of the lower laser displacement sensor to the shell of the upper laser displacement sensor, and determines the reference value according to the actual distance.
Optionally, before the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, and the reference value, the controller further includes:
the controller sets a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at an assembly initial position, and performs a compensation value test according to the gap value and the initial compensation value to determine a target compensation value;
correspondingly, the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value, and the target shaft assembly position includes:
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value and a preset initial clearance value.
Optionally, after the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter, the method further includes:
the shaft assembly moves the screen to be assembled, which is sucked by the suction nozzle component, to a lens barrel tooling position for alignment according to the position of the target shaft assembly;
the controller controls the shaft assembly to step upwards, shoots a picture to be detected in the stepping process through a camera, detects the picture definition of the picture to be detected, determines a target assembly position according to the picture definition, and determines a target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position.
The assembly position detection system provided by the invention comprises: the device comprises a suction nozzle component, a shaft component, a controller, a lower laser displacement sensor and an upper laser displacement sensor; the suction nozzle component is used for sucking a screen to be assembled; the shaft assembly is used for moving the screen to be assembled, which is sucked by the suction nozzle component, to a preset laser height measurement position so as to determine the position of a first shaft assembly and sending the position of the first shaft assembly to the controller; the lower laser displacement sensor is used for measuring the height of the screen to be assembled so as to obtain a first distance parameter, and sending the first distance parameter to the controller; the shaft assembly is further used for moving the upper laser displacement sensor to a preset upper laser height measurement position so as to determine the position of a second shaft assembly and sending the position of the second shaft assembly to the controller; the upper laser displacement sensor is used for measuring the height of the lens barrel to be assembled so as to obtain a second distance parameter and sending the second distance parameter to the controller; the controller is used for calculating the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembling starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter. Absorb through the suction nozzle part and treat the equipment screen, and remove each part through the axle subassembly, treat by lower laser displacement sensor and assemble the screen and carry out the height finding, treat the equipment lens cone by last laser sensor and carry out the height finding, calculate according to each item data in the testing process and treat the target axle subassembly position that the axle subassembly corresponds when assembling the initial position of equipment screen and the equipment lens cone, thereby carry out the module equipment according to the target axle subassembly position, be convenient for look for suitable equipment position, and then improved the packaging efficiency.
Drawings
FIG. 1 is a functional block diagram of a first embodiment of an assembly position detection system according to the present invention;
FIG. 2 is a schematic diagram of an assembly position detection system according to an embodiment of the present invention
FIG. 3 is a flowchart illustrating a method for detecting an assembly position according to a first embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for detecting an assembly position according to a second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for detecting an assembly position according to a third embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a functional block diagram of a first embodiment of an assembly position detection system according to the present invention. The assembly position detection system includes: the nozzle part 10, the shaft assembly 20, the controller 30, the lower laser displacement sensor 40, and the upper laser displacement sensor 50;
the suction nozzle part 10 is used for sucking the screen to be assembled.
It should be understood that the assembly position detection system in this embodiment is used for finding a suitable assembly position, and may specifically be used for detecting an assembly position of a glasses module, where the glasses module is divided into a screen and a lens barrel, in this embodiment, a screen to be assembled is referred to as a screen to be assembled, and a lens barrel to be assembled is referred to as a lens barrel to be assembled.
It should be noted that the suction nozzle part 10 is a device capable of sucking parts, and the suction nozzle part 10 in this embodiment is used for sucking the screen to be assembled so as to move the screen to be assembled.
It should be understood that, when the screen and the lens barrel are assembled, the optimal assembly position needs to be found, in the assembly process, the initial assembly position of the screen and the lens barrel needs to be found first, then stepping is performed upwards from the initial position, one picture is shot once per stepping, then the picture definition value of each picture is calculated, the optimal assembly position of the screen and the lens barrel in the vertical direction is found through curve fitting, therefore, the GAP value (GAP value) between the screen and the lens barrel when the screen and the lens barrel are in the optimal assembly position is calculated, UV glue with different thicknesses is coated according to different GAP values, and then the screen and the lens barrel are assembled through UV curing.
The shaft assembly 20 is configured to move the screen to be assembled, which is sucked by the suction nozzle part 10, to a preset laser height measurement position to determine a first shaft assembly position, and send the first shaft assembly position to the controller 30.
It should be understood that the shaft assembly 20 can control the movement of the nozzle part 10, the upper laser displacement sensor 50 and the lower laser sensor. Since the nozzle part 10 sucks the screen to be assembled, the shaft assembly 20 moves the nozzle part 10 while moving the screen to be assembled sucked by the nozzle part 10.
It should be noted that the preset laser height measurement position is a preset height measurement position, and a specific position of the preset laser height measurement position may be set according to an actual situation, which is not limited in this embodiment. The shaft assembly 20 may move the screen to be assembled sucked by the suction nozzle part 10 to a preset laser height measurement position, and the position of the shaft assembly 20 at this time is referred to as a first shaft assembly position, and the first shaft assembly position is sent to the controller 30, and may be recorded as the first shaft assembly position
。
The lower laser displacement sensor 40 is configured to measure a height of the screen to be assembled to obtain a first distance parameter, and send the first distance parameter to the controller 30.
It should be understood that the lower laser displacement sensor 40 may measure the height of the screen to be assembled to obtain a first distance parameter, where the first distance parameter is a current display index of the lower laser displacement sensor 40 and represents the distance between the lower laser displacement sensor 40 and the screen to be assembled, and the first distance parameter may be recorded as the first distance parameter
And transmits the first distance parameter to the controller 30.
The shaft assembly 20 is further configured to move the upper laser displacement sensor 50 to a preset upper laser height measurement position to determine a second shaft assembly position, and send the second shaft assembly position to the controller 30.
It should be noted that the preset laser height measurement position is a preset height measurement position, and a specific position of the preset laser height measurement position may be set according to an actual situation, which is not limited in this embodiment. The shaft assembly 20 can move the upper laser displacement sensor 50 to a preset lower laser height measurement position, the position of the shaft assembly 20 at this time is called a second shaft assembly position, the second shaft assembly position is sent to the controller 30, and the second shaft assembly position can be recorded as
。
The upper laser displacement sensor 50 is configured to measure a height of the lens barrel to be assembled to obtain a second distance parameter, and send the second distance parameter to the controller 30.
It should be understood that the upper laser displacement sensor 50 may measure the height of the lens barrel to be assembled to obtain a second distance parameter, where the second distance parameter is a current display index of the upper laser displacement sensor 50 and represents the distance between the lower laser displacement sensor 40 and the lens barrel to be assembled, and the second distance parameter may be recorded as the second distance parameter
And sends the second distance parameter to the controller 30.
The controller 30 is configured to calculate a target shaft assembly position corresponding to the shaft assembly 20 when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter.
It should be understood that, after receiving the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter, the controller 30 may calculate a target shaft assembly position corresponding to the shaft assembly 20 when the screen to be assembled and the lens barrel to be assembled are at the assembly start position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter.
It can be understood that the assembling starting position of the screen to be assembled and the lens barrel to be assembled can be accurately moved according to the position of the target shaft assembly, and then subsequent assembling operation is carried out, so that the module assembling efficiency is improved.
In this embodiment, absorb through the suction nozzle part and treat the equipment screen, and remove each part through the axle subassembly, treat by laser displacement sensor down and assemble the screen and carry out the height finding, treat the equipment lens cone by last laser sensor and carry out the height finding, calculate according to each item data among the testing process and treat the target axle subassembly position that the axle subassembly corresponds when equipment initial position of equipment screen and the lens cone of treating, thereby carry out the module equipment according to the target axle subassembly position, be convenient for look for suitable equipment position, and then improved the packaging efficiency.
Further, a second embodiment of the assembly position detection system of the present invention is proposed based on the embodiment shown in fig. 1 described above.
The shaft assembly 20 is further configured to move the upper laser displacement sensor 50 to a preset lower laser height measurement position.
It should be understood that the upper and lower laser displacement sensors 50, 40 may also be calibrated first in order to improve the accuracy of the detection. The shaft assembly 20 can move the upper laser displacement sensor 50 to a preset lower laser height measurement position, and the upper and lower laser displacement sensors mutually measure the housing of the probe of the laser sensor.
The lower laser displacement sensor 40 is further configured to measure a distance of an upper laser displacement sensor housing of the upper laser displacement sensor 50 to obtain a third distance parameter, and send the third distance parameter to the controller 30.
It will be appreciated that the upper laser displacement sensor 50 may range the lower laser sensor housing of the lower laser displacement sensor 40. Meanwhile, the lower laser displacement sensor 40 may also measure the distance of the upper laser displacement sensor housing of the upper laser displacement sensor 50 to obtain a third distance parameter, where the third distance parameter is a current display reading of the lower laser displacement sensor 40, indicates the distance between the lower laser displacement sensor 40 and the upper laser displacement sensor housing, and may be recorded as the third distance parameter
And sends the third distance parameter to the controller 30.
The controller 30 is further configured to perform laser calibration based on the third distance parameter to obtain a reference value.
It should be appreciated that the controller 30 may perform laser calibration based on the third distance parameter to obtain a reference value for calculation of the target shaft assembly position to improve the accuracy of the calculation.
Further, in order to calculate the reference value, the controller 30 is further configured to adjust the position of the shaft assembly 20 until the third distance parameter is 0, record a position of a third shaft assembly corresponding to the shaft assembly 20 when the third distance parameter is 0, detect an actual distance from a light emitting point of the lower laser displacement sensor 40 to the housing of the upper laser displacement sensor, and determine the reference value according to the actual distance.
It should be understood that the controller 30 may adjust the position of the shaft assembly 20 until the third distance parameter is adjusted to 0, and the corresponding position of the shaft assembly 20 at this time is referred to as the third shaft assembly position, which may be noted as the third shaft assembly position
。
It is understood that the actual distance from the light emitting point of the lower laser displacement sensor 40 to the housing of the upper laser displacement sensor is detected, and the actual distance is taken as a reference value, which can be recorded as
. When the shaft assembly 20 moves up and down, the light emitting point of the lower laser displacement sensor 40 is spaced from the upper laser displacement sensor housing by a distance of
(lower laser displacement sensor reading).
Further, since the accuracy of the reference values of different laser displacement sensors is different, in order to improve the accuracy of the calculation, a compensation value may be added in the calculation, and the size of the compensation value needs to be determined by a tool, the controller 30 is further configured to set a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at the initial assembly positions, and perform a compensation value test according to the gap value and the initial compensation value to determine a target compensation value.
It should be noted that the screen to be detected and the lens barrel to be detected are screens and lens barrels with higher precision than the screen to be assembled and the lens barrel to be assembled. Firstly, when the screen to be detected and the lens barrel to be detected are at the assembling initial positions, setting the gap value between the screen to be detected and the lens barrel to be detected to be 1mm and the initial compensation value to be 0, then automatically running and calculating, pausing the program when the gap value is 1mm after the screen to be detected and the lens barrel to be detected are jointed and theoretically calculated, and descending the shaft assembly according to 0.1mm each time until the shaft assembly is descended to 1 mm. And after the position is in place, a clearance gauge is plugged into a gap between the screen to be detected and the lens barrel to be detected, and a target compensation value m is determined according to a clearance gauge thickness result.
The controller 30 is further configured to calculate a target shaft assembly position corresponding to the shaft assembly 20 when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value, and a preset initial clearance value.
It should be understood that a target shaft assembly position corresponding to the shaft assembly of the screen and the lens barrel at the assembly start position may be calculated by a preset formula according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, a target compensation value, and a preset initial gap value.
The preset formula is as follows:
wherein the content of the first and second substances,
in order to target the shaft assembly position,
is used as a reference value and is used as a reference value,
in order to be the target compensation value, the compensation value is calculated,
is a second distance parameter which is a function of,
as to the position of the second shaft assembly,
is a third distance parameter which is a function of,
for the third axis assembly position,
is a first distance parameter that is a function of,
in the first shaft assembly position,
is a preset initial gap value.
It should be noted that the preset initial gap value is a preset gap value, and may be set according to an actual situation, which is not limited in this embodiment.
In a specific implementation, as shown in fig. 2, fig. 2 is a schematic diagram of an operation of the assembly position detection system, where fig. 2 includes: 50 upper laser displacement sensors, 10 suction nozzle components, 40 lower laser displacement sensors, 20 shaft components, 500 screens to be assembled, 600 lens barrels to be assembled and 700 lens barrel tooling. In FIG. 2
In the first shaft assembly position,
for the third axis assembly position,
as to the position of the second shaft assembly,
and the GAP is the GAP value between the screen to be assembled and the lens barrel to be assembled.
In the embodiment, before the assembly position detection is carried out, the upper laser displacement sensor and the lower laser displacement sensor are checked to obtain the reference value, and the reference value is added when the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are assembled at the assembly initial position is calculated, so that the calculation is more accurate, and the accuracy of the assembly position detection is further improved.
Further, based on the embodiment shown in fig. 1 described above, a third embodiment of the assembly position detection system of the present invention is proposed.
And the shaft assembly is further used for moving the screen to be assembled, which is sucked by the suction nozzle part 10, to a lens barrel tooling position for alignment according to the target shaft assembly position.
It should be understood that the shaft assembly can move the screen to be assembled sucked by the suction nozzle part 10 to the lens barrel tooling position for alignment according to the target shaft assembly position for assembly operation.
The controller 30 is further configured to control the shaft assembly to step upwards, shoot a to-be-detected picture in the stepping process through a camera, detect picture definition of the to-be-detected picture, determine a target assembly position according to the picture definition, and determine a target gap value between the to-be-assembled screen and the to-be-assembled lens barrel at the target assembly position.
It should be understood that the controller 30 may control the shaft assembly to step upwards from the initial position, and take one picture to be detected once per step, then detect the picture definition of the picture to be detected, and find the target assembly position of the screen to be assembled and the lens barrel to be assembled in the vertical direction through curve fitting, thereby determining the target gap value between the screen to be assembled and the lens barrel to be assembled when the screen to be assembled and the lens barrel to be assembled are in the target assembly position, finding the UV glue corresponding to the target gap value, and completing the assembly of the screen to be assembled and the lens barrel to be assembled according to the UV glue.
In the embodiment, after the position of the target shaft assembly is determined, the control shaft assembly moves the screen to be assembled, which is sucked by the suction nozzle component, to the lens barrel tool position to perform alignment according to the position of the target shaft assembly, controls the shaft assembly to move upwards to perform components, determines the target assembly position according to the picture to be detected in the stepping process, determines the target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position, and then selects proper UV glue according to the target gap value to assemble the screen to be assembled and the lens barrel to be assembled, so that the accuracy of module assembly is improved.
Referring to fig. 3, the present invention provides an assembly position detection method based on an assembly position detection system, the assembly position detection system including: the assembly position detection method comprises the following steps of:
step S10, the nozzle part sucks the screen to be assembled.
It should be understood that the assembly position detection method in this embodiment is used for finding a suitable assembly position, and specifically may be used for detecting an assembly position of a glasses module, where the glasses module is divided into a screen and a lens barrel, in this embodiment, a screen to be assembled is referred to as a screen to be assembled, and a lens barrel to be assembled is referred to as a lens barrel to be assembled.
It should be noted that the suction nozzle component is a device capable of sucking parts, and the suction nozzle component in this embodiment is used for sucking the screen to be assembled, so as to achieve the purpose of moving the screen to be assembled.
It should be understood that, when the screen and the lens barrel are assembled, the optimal assembly position needs to be found, in the assembly process, the initial assembly position of the screen and the lens barrel needs to be found first, then stepping is performed upwards from the initial position, one picture is shot once per stepping, then the picture definition value of each picture is calculated, the optimal assembly position of the screen and the lens barrel in the vertical direction is found through curve fitting, therefore, the GAP value (GAP value) between the screen and the lens barrel when the screen and the lens barrel are in the optimal assembly position is calculated, UV glue with different thicknesses is coated according to different GAP values, and then the screen and the lens barrel are assembled through UV curing.
And step S20, the shaft assembly moves the screen to be assembled sucked by the suction nozzle component to a preset laser height measurement position so as to determine the position of the first shaft assembly, and the position of the first shaft assembly is sent to the controller.
It should be understood that the shaft assembly may control the movement of the suction nozzle assembly, the upper laser displacement sensor and the lower laser sensor. Because the screen to be assembled is sucked by the suction nozzle component, the screen to be assembled sucked by the suction nozzle component can be moved simultaneously when the shaft component moves the suction nozzle component.
It should be noted that the preset laser height measurement position is a preset height measurement position, and a specific position of the preset laser height measurement position may be set according to an actual situation, which is not limited in this embodiment. The shaft assembly can move the screen to be assembled sucked by the suction nozzle part to a preset laser height measurement position, the position of the shaft assembly at the moment is called as a first shaft assembly position, the first shaft assembly position is sent to the controller, and the first shaft assembly position can be recorded as a first shaft assembly position
。
And step S30, the lower laser displacement sensor carries out height measurement on the screen to be assembled so as to obtain a first distance parameter, and the first distance parameter is sent to the controller.
It should be understood that the lower laser displacement sensor may be treated as a groupInstalling a screen for height measurement to obtain a first distance parameter, wherein the first distance parameter is a current display reading of the lower laser displacement sensor, represents the distance between the lower laser displacement sensor and the screen to be assembled, and can be recorded as the first distance parameter
And sending the first distance parameter to a controller.
And step S40, the shaft assembly moves the upper laser displacement sensor to a preset upper laser height measurement position to determine the position of a second shaft assembly, and the position of the second shaft assembly is sent to the controller.
It should be noted that the preset laser height measurement position is a preset height measurement position, and a specific position of the preset laser height measurement position may be set according to an actual situation, which is not limited in this embodiment. The shaft assembly can move the upper laser displacement sensor to a preset lower laser height measurement position, the position of the shaft assembly at the moment is called as a second shaft assembly position, the second shaft assembly position is sent to the controller, and the second shaft assembly position can be recorded as a second shaft assembly position
。
And step S50, the upper laser displacement sensor carries out height measurement on the lens barrel to be assembled so as to obtain a second distance parameter, and the second distance parameter is sent to the controller.
It should be understood that, the upper laser displacement sensor may measure the height of the lens barrel to be assembled to obtain a second distance parameter, where the second distance parameter is a current display index of the upper laser displacement sensor and represents the distance between the lower laser displacement sensor and the lens barrel to be assembled, and the second distance parameter may be recorded as the second distance parameter
And sending the second distance parameter to a controller.
Step S60, the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter.
It should be understood that, after receiving the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter, the controller may calculate a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter.
It can be understood that the assembling starting position of the screen to be assembled and the lens barrel to be assembled can be accurately moved according to the position of the target shaft assembly, and then subsequent assembling operation is carried out, so that the module assembling efficiency is improved.
In this embodiment, absorb through the suction nozzle part and treat the equipment screen, and remove each part through the axle subassembly, treat by laser displacement sensor down and assemble the screen and carry out the height finding, treat the equipment lens cone by last laser sensor and carry out the height finding, calculate according to each item data among the testing process and treat the target axle subassembly position that the axle subassembly corresponds when equipment initial position of equipment screen and the lens cone of treating, thereby carry out the module equipment according to the target axle subassembly position, be convenient for look for suitable equipment position, and then improved the packaging efficiency.
Further, as shown in fig. 4, a second embodiment of the assembly position detecting method according to the present invention is proposed based on the first embodiment, and in this embodiment, before the step S10, the method further includes:
and step S01, the shaft assembly moves the upper laser displacement sensor to a preset lower laser height measurement position.
It should be understood that the upper and lower laser displacement sensors may also be calibrated first in order to improve the accuracy of the detection. The shaft assembly can move the upper laser displacement sensor to a preset lower laser height measurement position, and the upper laser displacement sensor and the lower laser displacement sensor mutually measure the shell of the probe of the laser sensor.
And step S02, the lower laser displacement sensor measures the distance of the upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter, and the third distance parameter is sent to the controller.
It will be appreciated that the upper laser displacement sensor may be used to measure the distance to the lower laser sensor housing of the lower laser displacement sensor. Meanwhile, the lower laser displacement sensor can also measure the distance of the upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter, the third distance parameter is the current display reading of the lower laser displacement sensor and represents the distance between the lower laser displacement sensor and the upper laser displacement sensor shell, and the third distance parameter can be recorded as
And sending the third distance parameter to a controller.
And step S03, the controller performs laser calibration based on the third distance parameter to obtain a reference value.
It should be appreciated that the controller may perform laser calibration based on the third distance parameter to obtain a reference value for calculation of the target shaft assembly position to improve the accuracy of the calculation.
Further, in order to facilitate calculation of the reference value, step S03 includes:
the controller adjusts the position of the shaft assembly until the third distance parameter is 0, records the position of the third shaft assembly corresponding to the shaft assembly when the third distance parameter is 0, detects the actual distance from the light emitting point of the lower laser displacement sensor to the shell of the upper laser displacement sensor, and determines the reference value according to the actual distance.
It should be understood that the controller may adjust the position of the shaft assembly until the third distance parameter is adjusted to 0, and the position corresponding to the shaft assembly at this time is referred to as the third shaft assembly position, which may be recorded as the third shaft assembly position
。
It can be understood that the light emitting point of the lower laser displacement sensor is detected toThe actual distance of the housing of the upper laser displacement sensor is taken as a reference value, and the reference value can be recorded as
. When the shaft component moves up and down, the distance between the light-emitting point of the lower laser displacement sensor and the shell of the upper laser displacement sensor is
(lower laser displacement sensor reading).
Further, since the accuracy of the reference values of different laser displacement sensors varies, in order to improve the accuracy of the calculation, a compensation value may be added in the calculation, and the magnitude of the compensation value needs to be determined by a tool, and before S601, the method further includes:
the controller sets a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at an assembly initial position, and performs a compensation value test according to the gap value and the initial compensation value to determine a target compensation value.
It should be noted that the screen to be detected and the lens barrel to be detected are screens and lens barrels with higher precision than the screen to be assembled and the lens barrel to be assembled. Firstly, when the screen to be detected and the lens barrel to be detected are at the assembling initial positions, setting the gap value between the screen to be detected and the lens barrel to be detected to be 1mm and the initial compensation value to be 0, then automatically running and calculating, pausing the program when the gap value is 1mm after the screen to be detected and the lens barrel to be detected are jointed and theoretically calculated, and descending the shaft assembly according to 0.1mm each time until the shaft assembly is descended to 1 mm. And after the position is in place, a clearance gauge is plugged into a gap between the screen to be detected and the lens barrel to be detected, and a target compensation value m is determined according to a clearance gauge thickness result.
Accordingly, the step S601 includes:
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value and a preset initial clearance value.
It should be understood that a target shaft assembly position corresponding to the shaft assembly of the screen and the lens barrel at the assembly start position may be calculated by a preset formula according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, a target compensation value, and a preset initial gap value.
The preset formula is as follows:
wherein the content of the first and second substances,
in order to target the shaft assembly position,
is used as a reference value and is used as a reference value,
in order to be the target compensation value, the compensation value is calculated,
is a second distance parameter which is a function of,
as to the position of the second shaft assembly,
is a third distance parameter which is a function of,
for the third axis assembly position,
is a first distanceThe distance from the parameter is measured,
in the first shaft assembly position,
is a preset initial gap value.
It should be noted that the preset initial gap value is a preset gap value, and may be set according to an actual situation, which is not limited in this embodiment.
In a specific implementation, as shown in fig. 2, fig. 2 is a schematic diagram of an operation of the assembly position detection system, where fig. 2 includes: 50 upper laser displacement sensors, 10 suction nozzle components, 40 lower laser displacement sensors, 20 shaft components, 500 screens to be assembled, 600 lens barrels to be assembled and 700 lens barrel tooling. In FIG. 2
In the first shaft assembly position,
for the third axis assembly position,
as to the position of the second shaft assembly,
and the GAP is the GAP value between the screen to be assembled and the lens barrel to be assembled.
In the embodiment, before the assembly position detection is carried out, the upper laser displacement sensor and the lower laser displacement sensor are checked to obtain the reference value, and the reference value is added when the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are assembled at the assembly initial position is calculated, so that the calculation is more accurate, and the accuracy of the assembly position detection is further improved.
Further, as shown in fig. 5, a third embodiment of the assembly position detecting method according to the present invention is proposed based on the first embodiment or the second embodiment, and in this embodiment, the following steps after step S60 further include:
and step S70, the shaft assembly moves the screen to be assembled sucked by the suction nozzle component to a lens barrel tooling position for alignment according to the target shaft assembly position.
It should be understood that the shaft assembly can move the screen to be assembled, which is sucked by the suction nozzle component, to the lens barrel tooling position for alignment according to the target shaft assembly position, so as to perform the assembly operation.
Step S80, the controller controls the shaft assembly to step upwards, and shoots a picture to be detected in the stepping process through a camera, detects the picture definition of the picture to be detected, determines a target assembly position according to the picture definition, and determines a target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position.
It should be understood that the controller may control the shaft assembly to step upwards from the initial position, and take one picture to be detected once per step, then detect the picture definition of the picture to be detected, and find the target assembly position of the screen to be assembled and the lens barrel to be assembled in the vertical direction through curve fitting, thereby determining a target gap value between the screen to be assembled and the lens barrel to be assembled when the screen to be assembled and the lens barrel to be assembled are in the target assembly position, finding UV glue corresponding to the target gap value, and completing the assembly of the screen to be assembled and the lens barrel to be assembled according to the UV glue.
In the embodiment, after the position of the target shaft assembly is determined, the control shaft assembly moves the screen to be assembled, which is sucked by the suction nozzle component, to the lens barrel tool position to perform alignment according to the position of the target shaft assembly, controls the shaft assembly to move upwards to perform components, determines the target assembly position according to the picture to be detected in the stepping process, determines the target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position, and then selects proper UV glue according to the target gap value to assemble the screen to be assembled and the lens barrel to be assembled, so that the accuracy of module assembly is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes several instructions for enabling an intelligent terminal (which may be a mobile phone, a computer, a terminal, an air conditioner, or a network terminal) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An assembly position detection system, characterized in that the assembly position detection system comprises: the device comprises a suction nozzle component, a shaft component, a controller, a lower laser displacement sensor and an upper laser displacement sensor;
the suction nozzle component is used for sucking a screen to be assembled;
the shaft assembly is used for moving the screen to be assembled, which is sucked by the suction nozzle component, to a preset laser height measurement position so as to determine the position of a first shaft assembly and sending the position of the first shaft assembly to the controller;
the lower laser displacement sensor is used for measuring the height of the screen to be assembled so as to obtain a first distance parameter, and sending the first distance parameter to the controller;
the shaft assembly is further used for moving the upper laser displacement sensor to a preset upper laser height measurement position so as to determine the position of a second shaft assembly and sending the position of the second shaft assembly to the controller;
the upper laser displacement sensor is used for measuring the height of the lens barrel to be assembled so as to obtain a second distance parameter and sending the second distance parameter to the controller;
the controller is used for calculating the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembling starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter.
2. The assembly position detection system of claim 1, wherein the shaft assembly is further configured to move the upper laser displacement sensor to a preset lower laser elevation position;
the lower laser displacement sensor is also used for measuring the distance of an upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter and sending the third distance parameter to the controller;
the controller is further used for carrying out laser calibration based on the third distance parameter so as to obtain a reference value;
the controller is further configured to calculate a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value.
3. The assembly position detecting system according to claim 2, wherein the controller is further configured to adjust the position of the shaft assembly until the third distance parameter is 0, record a position of the third shaft assembly corresponding to the shaft assembly when the third distance parameter is 0, detect an actual distance from a light emitting point of the lower laser displacement sensor to the housing of the upper laser displacement sensor, and determine the reference value according to the actual distance.
4. The assembly position detecting system according to claim 2, wherein the controller is further configured to set a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at the assembly start position, and perform a compensation value test based on the gap value and the initial compensation value to determine a target compensation value;
the controller is further configured to calculate a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value and a preset initial clearance value.
5. The assembly position detection system according to any one of claims 1 to 4, wherein the shaft assembly is further configured to move the screen to be assembled, which is sucked by the suction nozzle component, to a lens barrel tooling position for alignment according to the target shaft assembly position;
the controller is further used for controlling the shaft assembly to step upwards, shooting a picture to be detected in the stepping process through a camera, detecting the picture definition of the picture to be detected, determining a target assembly position according to the picture definition, and determining a target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position.
6. An assembly position detection method, characterized in that the assembly position detection method is based on an assembly position detection system, the assembly position detection system comprising: the assembly position detection method comprises the following steps of:
the suction nozzle component sucks a screen to be assembled;
the shaft assembly moves the screen to be assembled sucked by the suction nozzle component to a preset laser height measurement position so as to determine the position of a first shaft assembly, and the position of the first shaft assembly is sent to the controller;
the lower laser displacement sensor is used for measuring the height of the screen to be assembled so as to obtain a first distance parameter, and the first distance parameter is sent to the controller;
the shaft assembly moves the upper laser displacement sensor to a preset upper laser height measurement position so as to determine the position of a second shaft assembly, and the position of the second shaft assembly is sent to the controller;
the upper laser displacement sensor is used for measuring the height of the lens barrel to be assembled so as to obtain a second distance parameter, and the second distance parameter is sent to the controller;
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter.
7. The assembly position detecting method according to claim 6, wherein before the suction nozzle part sucks the screen to be assembled, further comprising:
the shaft assembly moves the upper laser displacement sensor to a preset lower laser height measurement position;
the lower laser displacement sensor measures the distance of an upper laser displacement sensor shell of the upper laser displacement sensor to obtain a third distance parameter, and sends the third distance parameter to the controller;
the controller performs laser calibration based on the third distance parameter to obtain a reference value;
correspondingly, the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position and the second distance parameter, and the method comprises the following steps:
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly initial position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value.
8. The assembly position detecting method according to claim 7, wherein the controller performs laser calibration based on the third distance parameter to obtain a reference value, including:
the controller adjusts the position of the shaft assembly until the third distance parameter is 0, records the position of the third shaft assembly corresponding to the shaft assembly when the third distance parameter is 0, detects the actual distance from the light emitting point of the lower laser displacement sensor to the shell of the upper laser displacement sensor, and determines the reference value according to the actual distance.
9. The assembly position detection method according to claim 7, wherein before the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly start position based on the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, and the reference value, the method further comprises:
the controller sets a gap value and an initial compensation value between the screen to be detected and the lens barrel to be detected when the screen to be detected and the lens barrel to be detected are at an assembly initial position, and performs a compensation value test according to the gap value and the initial compensation value to determine a target compensation value;
correspondingly, the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position and the reference value, and the target shaft assembly position includes:
and the controller calculates the target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly starting position according to the first shaft assembly position, the first distance parameter, the second shaft assembly position, the second distance parameter, the third shaft assembly position, the reference value, the target compensation value and a preset initial clearance value.
10. The assembly position detection method according to any one of claims 6 to 9, wherein after the controller calculates a target shaft assembly position corresponding to the shaft assembly when the screen to be assembled and the lens barrel to be assembled are at the assembly start position based on the first shaft assembly position, the first distance parameter, the second shaft assembly position, and the second distance parameter, the method further comprises:
the shaft assembly moves the screen to be assembled, which is sucked by the suction nozzle component, to a lens barrel tooling position for alignment according to the position of the target shaft assembly;
the controller controls the shaft assembly to step upwards, shoots a picture to be detected in the stepping process through a camera, detects the picture definition of the picture to be detected, determines a target assembly position according to the picture definition, and determines a target gap value of the screen to be assembled and the lens barrel to be assembled at the target assembly position.
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