CN119839599B

CN119839599B - Automatic assembling system and method for pluggable CPO micro-connector

Info

Publication number: CN119839599B
Application number: CN202510154956.5A
Authority: CN
Inventors: 邱锦和; 梁晓辉; 邱云兴; 范宇新
Original assignee: Zhongshan Meisu Technology Co ltd
Current assignee: Zhongshan Meisu Technology Co ltd
Priority date: 2025-02-12
Filing date: 2025-02-12
Publication date: 2025-11-07
Anticipated expiration: 2045-02-12
Also published as: CN119839599A

Abstract

The invention relates to the field of optical communication, in particular to an automatic assembly system of a pluggable CPO micro-connector. The CPO micro connector comprises a feeding module, an assembling module, an acquisition module, a calculation module, a user interaction module and a control module, wherein the user interaction module is used for receiving user instructions, the control module is used for generating control commands according to the user instructions received by the user interaction module, the feeding module is used for conveying different accessories to the assembling module, the assembling module is used for assembling the accessories into pluggable CPO micro connectors of a model meeting the control command requirements, the acquisition module is used for acquiring various data generated in the assembling process, and the calculation module is used for generating quality indexes of products. According to the scheme, the quality of the product is evaluated by setting the quality index, so that personalized evaluation of the quality of different products is facilitated, and the pertinence of the system in quality detection is facilitated.

Description

Automatic assembling system and method for pluggable CPO micro-connector

Technical Field

The invention relates to the field of optical communication, in particular to an automatic assembly system and method for pluggable CPO microconnectors.

Background

With the continuous development of electronic devices and photoelectric communication technologies, there is an increasing demand for high-performance, miniaturized connectors. In particular, the application of microconnectors in the fields of photovoltaic power generation, communication networks, automotive electronics, etc., is becoming more widespread. To accommodate increasingly compact device designs and to improve connector reliability, CPOs (pluggable optical connectors) have become a key component in the electronics and optoelectronics industries as a new type of high-density connector.

An optical fiber pluggable self-locking type fuse-free connector is disclosed in the prior art of CN 108061941A. The optical fiber connector is characterized by comprising two sections of optical fiber connectors which can be directly plugged and pulled out, wherein each of the two sections of optical fiber connectors comprises a base, a V-shaped groove assembly is arranged on the base of one section of optical fiber connector, embedded optical fibers penetrate into the V-shaped groove assembly, a movable optical fiber protection tube is arranged in the base of the other section of optical fiber connector, a plug block is arranged outside the base of one section of optical fiber connector, a matching block matched with the plug block is arranged outside the base of the other section of optical fiber connector, and after the plug block is matched with the matching block, the optical fibers in the V-shaped groove assembly are in butt joint with the optical fibers in the optical fiber protection tube. According to the invention, the optical fibers are spliced through the two sections of connectors which can be directly plugged and pulled, and the optical fibers can be stripped through the coating stripper and the like, so that the splicing efficiency is greatly improved, and the production cost and the technical requirements of installer for splicing are reduced.

Another typical optical fiber connector capable of being plugged and unplugged in multiple directions is disclosed in the prior art of CN110068899a, the optical fiber connector is provided with a plugging port at a butting space side inside a base, guide channels are respectively arranged on wall surfaces around the plugging port, a content chamber is arranged at the other side for accommodating an optical element, a light source receiving and transmitting part is arranged at one side of the optical element and is positioned in the butting space, the purpose that the plugging port of the butting part can be plugged and unplugged towards the plugging port in multiple directions such as up, down, left and right is achieved, the preset optical fiber connector can smoothly enter and exit the butting space through the guide channels, the effect of collision with the base is avoided, the limitation of plugging and unplugging when the optical fiber connector is applied can be reduced, and the practicability of the optical fiber connector is effectively increased.

In view of the prior art, a CPO optical engine packaging structure capable of plugging optical fibers is disclosed in CN118884625A, and comprises a substrate, a silicon optical chip, an electronic chip, a socket, an optical fiber array and a plug, wherein the silicon optical chip and the electronic chip are electrically connected to the substrate, the socket is fixed at the edge of the substrate, a plugging channel is arranged in the socket, a collimating lens is arranged on one side of the silicon optical chip corresponding to the plugging channel, an optical waveguide of the silicon optical chip is aligned with the collimating lens, the plug is fixed at the end part of the optical fiber array, a focusing lens aligned with the optical fiber array is arranged on one side of the plug, the plug is assembled with the socket in a plugging manner, the focusing lens is aligned with the collimating lens along the length direction parallel to the plugging channel, a first limiting part is arranged in the socket, a first matching part is arranged on the outer side of the plug, the first limiting part is in guiding manner with the first matching part, a locking structure is arranged on the socket, the socket is separated from the plug when the locking structure is operated, and the locking structure is locked with the plug when the locking structure is released.

At present, the conventional CPO micro-connector assembly system generally adopts a unified mode to judge whether the assembly is normal or not in the assembly process, and no targeted detection is performed on the assembly of CPO micro-connectors of different types, so as to solve the common problems in the field.

Disclosure of Invention

The invention aims at providing an automatic assembly system and method for pluggable CPO micro-connectors, aiming at the defects existing at present.

In order to overcome the defects in the prior art, the invention adopts the following technical scheme:

The automatic assembly system of pluggable CPO microconnectors comprises a feeding module, an assembly module, an acquisition module, a calculation module, a user interaction module and a control module, wherein the user interaction module is used for receiving user instructions, the control module is used for generating control commands according to the user instructions received by the user interaction module and controlling the feeding module and the assembly module according to the control commands, the feeding module is used for conveying different accessories to the assembly module according to the control commands, the assembly module is used for assembling the accessories into pluggable CPO microconnectors of a model meeting the control command requirements according to the control commands, the acquisition module is used for acquiring various data generated in the assembly process, and the calculation module is used for generating quality indexes of products according to the acquired data of the acquisition module.

Further, the user interaction module comprises an instruction receiving unit and a display unit, wherein the instruction receiving unit is used for receiving a user instruction input by a user, and the display unit is used for displaying the quality index acquired by the calculation module and various data acquired by the acquisition module.

Still further, the control module includes an instruction conversion unit for converting a user instruction input by a user into a control command for each part of the system according to a communication protocol set in advance, and a command transmission unit for transmitting the control command to the supply module and the assembly module.

Still further, the feed module includes transport vechicle, feed tray and conveyer belt, the transport vechicle is used for transporting corresponding accessory and places the accessory on the feed tray from the warehouse according to the control command, the conveyer belt is used for with various accessories transfer to the equipment module, the feed tray set up in the conveyer belt top, the feed tray is used for depositing various accessories.

Still further, the assembly module includes clamping unit, crimping unit, welding unit and trial unit, the clamping unit is used for the centre gripping of various accessories to appointed position, crimping unit is used for carrying out the crimping operation between each accessory, welding unit is used for welding the accessory at each welding point, trial unit is used for inserting the product of production in the test slot and detecting the performance of product.

Still further, the collection module includes image data collection unit, temperature data collection unit and trial information collection unit, image data collection unit is used for shooing the image of clamping unit and crimping unit in the course of the work, temperature data collection unit is used for gathering the various temperature data that welding unit produced in the welding process, the information collection unit of trial is used for gathering the various data of trial that the unit produced in the process of trying on the product.

Furthermore, the automatic assembly method of the pluggable CPO micro-connector based on the automatic assembly system comprises the following steps:

s1, a user selects the model of the pluggable CPO micro connector to be produced in the user interaction module, and the control module sends a corresponding control command to the feeding module and the assembly module according to user input.

S2, the feeding module conveys corresponding accessories to the assembling module according to the control command.

S3, the assembly module assembles the accessories into pluggable CPO microconnectors of the model to be produced according to the control command.

S4, the acquisition module acquires various data generated in the assembly process.

S5, the calculating module calculates the quality index of the product according to the data acquired by the acquisition module.

And S6, the user interaction module displays the calculated quality index and various data acquired by the acquisition module.

Furthermore, the assembly module assembles the accessories into pluggable CPO microconnectors of the model to be produced according to the control command, and the method comprises the following steps:

s31, the clamping unit clamps the base of the pluggable CPO micro-connector to a specified position according to the control command, and then clamps the internal element to the specified position.

S32, the crimping unit crimps the internal element at a position needing crimping according to the control command.

S33, the welding unit welds the internal components at the positions to be welded according to the control command.

S34, the clamping unit clamps the shell to a designated position according to the control command, the welding unit welds the shell and the base, and the product is obtained after cooling.

S35, the trial unit inserts the product into the test slot and detects the performance of the product.

The quality evaluation method has the beneficial effects that 1. The quality of the product is evaluated by setting the quality index, and different quality index thresholds are provided for different product models, so that the personalized evaluation of the quality of different products is facilitated, and the pertinence of the system in quality detection is facilitated.

2. The corresponding control command is generated by selecting the produced product model by the user, and the automatic assembly of the pluggable CPO microconnector is realized by the control command, so that the automatic degree of the generation is improved, and the automatic detection of the product quality is realized by setting the quality index.

Drawings

The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate like parts in the different views.

FIG. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a flow chart of the operation of the present invention.

Fig. 3 is a flow chart of the assembly module of the present invention assembling the fitting into a pluggable CPO microconnector of the type that is to be produced.

FIG. 4 is a graph showing the relationship between the upper limit of fluctuation and the maximum and minimum values of the quality index of the batch of products.

Detailed Description

The following embodiments of the present invention are described in terms of specific examples, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure herein. The invention is capable of other and different embodiments and its several details are capable of modification and variation in various respects, all without departing from the spirit of the present invention. The drawings of the present invention are merely schematic illustrations, and are not intended to be drawn to actual dimensions. The following embodiments will further illustrate the related art content of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

According to fig. 1, 2, 3 and 4, the embodiment provides an automatic assembly system of pluggable CPO microconnectors, the assembly system comprises a feeding module, an assembly module, an acquisition module, a calculation module, a user interaction module and a control module, the user interaction module is used for receiving user instructions, the control module is used for generating control commands according to the user instructions received by the user interaction module and controlling the feeding module and the assembly module according to the control commands, the feeding module is used for conveying different accessories to the assembly module according to the control commands, the assembly module is used for assembling the accessories into pluggable CPO microconnectors of a model meeting the requirements of the control commands according to the control commands, the acquisition module is used for acquiring various data generated in the assembly process, and the calculation module is used for generating quality indexes of products according to the acquired data of the acquisition module.

Specifically, the quality index is used for evaluating the quality of the produced product, the quality index is larger, the quality of the product is better, when the quality index is larger than a quality index threshold, the quality of the product is considered to be qualified, otherwise, the quality of the product is considered to be unqualified, the quality index threshold is set by a person skilled in the art according to the maximum error acceptable in the production process of each item of data of each model of the product when the production standard of each model of pluggable CPO micro-connector is planned, and the quality index threshold corresponding to each model of the product can be calculated by calculating the quality index under the condition that the maximum error exists.

Specifically, the production standard comprises standard images of each flow in the production process and standard parameters of each device.

Specifically, the control command includes relevant process information of the production model of the pluggable CPO micro connector selected by the user, and the clamping unit, the crimping unit and the welding unit of the assembly module execute corresponding operations according to the process information so as to produce pluggable CPO micro connectors of different models.

Specifically, the calculation module performs calculation according to the following formula:

calculating the installation position index of the product according to the following formula:

The WZZB is an installation position index, which is used for representing the deviation degree of the installation position of each part of a product, the greater the index value is, the greater the deviation degree is, the NUM is the number of pixels occupied by the base part of the pluggable CPO microconnector to be assembled, which is shot by the image data acquisition unit, p ₁ is a distance parameter between the position of a pixel of a base center point in the shot image and the position of a pixel of the base center point in the standard image, wherein the distance parameter is a distance between the coordinate of a pixel mapped by the pixel of the base center point in the shot image in the standard image and the coordinate of the pixel of the base center point in the standard image, D is the perimeter of the edge of the base, p (D) is the distance parameter between the pixel position (the first pixel position in the clockwise moving direction if a plurality of pixels exist) of the edge of the base and the corresponding pixel position in the standard image, the starting point is set by a optional point in the edge of the base in advance by a person skilled in the art, wherein dd is the integral of D, D is the distance between the coordinate of the pixel mapped by the pixel of the base center point in the shot image in the standard image and the coordinate of the pixel of the base center point in the standard image, D is the perimeter of the edge of the base, p (D) is the circumference of the pixel position of the base edge of the base is the pixel along the edge of the base, D is the pixel position of the edge of the base, and the pixel position is different by D distance between the pixel position of the pixel position in the base accessory pixel position and the pixel position.

Specifically, the starting point is a random pixel of the edge of the base, and the corresponding pixel is a pixel closest to the original pixel in the pixels of the edge of the base in the standard image.

The following is a program corresponding to the calculation of the installation position index:

import numpy as np

def calculate_wzzb(num,p1,p_d,d,a,ch,s_a):

"""

The mounting position index WZZB is calculated.

Parameters:

num, number of pixels of the microconnector base part taken by the image data acquisition unit.

-P1 perimeter of the central edge of the base.

P_d the distance weight function (array) of all pixels along the edge of the base and between the start point and the end point in the captured image.

Distance (array, corresponding to p_d).

-A number of fittings.

-Ch-number of pixels (array) whose position in the captured image does not coincide with the specified position after the accessory is supported by the support unit to the specified position.

S_a, the standard number of pixels (array) of the fitting.

Returning:

Wzzb mounting position index.

"""

# Calculate integral part

integral_part=np.trapz(p_d*d,d)

Sum of # computing accessory parts

sum_ch_sa=sum(ch_i/s_a_i for ch_i,s_a_iin zip(ch,s_a))

# Calculation WZZB

wzzb=(num*p1+integral_part)*sum_ch_sa

return wzzb

Example input parameters #

Num=1000# assuming that the number of pixels is 1000

P1=150# assuming a perimeter of 150 for the base edge

P_d=np.array ([ 0.1,0.2,0.3,0.4 ])# assumes a distance weight function

D=np. distance corresponding to array ([ 1,2,3,4 ]) #

Number of a=3# fittings is 3

Number of pixels with position deviation of ch= [50,60,70] # fitting

Standard pixel count of s_a= [500,600,700] # fitting

# Call function calculation

wzzb=calculate_wzzb(num,p1,p_d,d,a,ch,s_a)

Print ('installation position index WZZB:', wzzb)

Calculating the installation equipment index of the product according to the following formula:

wherein SBZB is an index of installation equipment, which is used for representing the performance of the crimping and welding unit, the larger the index is, the worse the performance is, the number of crimping times in the assembly process is B, the number of welding times in the assembly process is C, F _b is the crimping force generated by the equipment in the production standard when in crimping for the B time, F _b is the crimping force generated by the equipment in the actual crimping process when in crimping for the B time, W _c is the welding temperature generated by the equipment in the production standard when in welding for the C time, and W _c is the welding temperature generated by the equipment in the actual welding process when in welding for the C time.

Calculating the trial performance index of the product according to the following formula:

The SYZB is a trial performance index of the product, which is used for representing the performance of the product in the trial process, the larger the index is, the worse the performance is, M is the number of detection cycles experienced in the trial process, HEIGHT is the opening HEIGHT of an eye pattern formed by output signals detected in the trial process, head is the opening HEIGHT of an eye pattern formed by output signals detected in the trial process, WEIGHT is the opening width of an eye pattern formed by output signals detected in the trial process, last _m is the signal delay of the output signals detected in the M-th detection cycle, the signal delay is the difference between the detected signal transmission time and the expected signal transmission time, SNR _m is the signal-to-noise ratio of the output signals detected in the M-th detection cycle, LAT is the signal delay threshold in the production standard, and SNR is the signal-to-noise ratio threshold in the production standard, and the signal delay threshold and the signal-to-noise ratio threshold are set by a worker in the field according to the maximum value which can be tolerated in practice.

Specifically, the input signal in the trial process is a test signal, and the output signal is a signal output by the test signal after passing through the CPO microconnector.

Calculating the quality index of the product according to the following formula:

ZLZB=e^-WZZB+e^-SBZB+e^-SYZB

Wherein ZLZB is a quality index, the larger the index is, the better the quality of the product is, and e is a natural constant.

Specifically, the user interaction module judges whether the product is qualified by judging whether the quality index is larger than the quality index threshold corresponding to the product of the model, and when the quality index is larger than the quality index threshold corresponding to the product of the model, the product is qualified, and the qualification condition of the product is displayed on the user interaction module.

The method has the beneficial effects that 1, the quality of the product is evaluated by setting the quality index, and different quality index thresholds are provided for different product models, so that personalized evaluation of the quality of different products is facilitated, and the pertinence of the system in quality detection is facilitated.

The second embodiment is to be understood as including all the features of any one of the foregoing embodiments and further improving on the basis thereof, and includes a method for analyzing the performance of a production line by obtaining a production linear performance index to perform overall evaluation on the performance of the production line, in the first embodiment, only a single product is inspected by a quality index, but the production line is not inspected according to the quality of each product, and in the first embodiment, the entire production line is inspected by the performance index of the production line, so as to determine whether the quality problem of the product is due to a single accident or due to a problem of the production line, including the steps of:

Specifically, the quality index of the product with smaller fluctuation degree (i.e. the quality index with smaller gap from the average quality index of the whole) is firstly screened:

The upper fluctuation limit is calculated according to the following formula:

UP=VER+Y*(MAX-MIN)

Wherein UP is the upper limit of fluctuation, VER is the average quality index of the products produced in the batch, Y is a sample parameter, MAX is the maximum value of the quality index of the products produced in the batch, MIN is the minimum value of the quality index of the products produced in the batch, the sample parameter is set by a person skilled in the art according to the number of the products produced in the batch between 0.1 and 2, and the value of the sample parameter is smaller as the number of the products produced in the batch is larger.

As shown in fig. 4, fig. 4 is a graph showing the relationship between the upper limit of fluctuation and the maximum and minimum values of the quality index of the product produced in the batch assuming that VER is 1.5 and Y is 1.

The lower fluctuation limit is calculated according to the following formula:

DOWN=VER-Y*(MAX-MIN)

Wherein DOWN is the fluctuation lower limit, VER is the average quality index of the products produced in the batch, Y is the sample parameter, MAX is the maximum value of the quality index of the products produced in the batch, MIN is the minimum value of the quality index of the products produced in the batch, the sample parameter is set by a person skilled in the art according to the quantity of the products produced in the batch between 0.1 and 2, and the value of the sample parameter is smaller as the quantity of the products produced in the batch is larger.

Removing quality indexes larger than the fluctuation upper limit and the fluctuation lower limit from the data, and calculating a production linear energy index according to the residual quality indexes;

the production line performance index is calculated according to the following formula:

Wherein SCXZB is a production line performance index, VER is an average quality index of products produced in the batch, N is the number of remaining quality indexes after removing part of quality indexes, max is the maximum value of the remaining quality indexes after removing part of quality indexes, min is the minimum value of the remaining quality indexes after removing part of quality indexes, ZLZB _n is the value of the remaining nth quality index after removing part of quality indexes, and VER is the average value of the remaining quality indexes after removing part of quality indexes.

Specifically, when the value of the performance index of the production line is greater than the quality index threshold, the production line is considered to be problematic, and the equipment needs to be adjusted.

The method has the beneficial effects that by setting the performance index of the production line, whether the production line has problems or not can be judged through the quality index, and whether the production line needs to be adjusted or not can be judged by staff according to the production linear performance index.

The foregoing disclosure is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by applying the description of the present invention and the accompanying drawings are included in the scope of the present invention, and in addition, elements in the present invention can be updated as the technology develops. The above units are only examples, and those skilled in the art can implement the present embodiment according to actual requirements to implement different designs to adopt corresponding units.

Claims

1. The automatic assembling method of the pluggable CPO microconnector is characterized by comprising a feeding module, an assembling module, an acquisition module, a calculation module, a user interaction module and a control module, wherein the user interaction module is used for receiving user instructions, the control module is used for generating control commands according to the user instructions received by the user interaction module and controlling the feeding module and the assembling module according to the control commands, the feeding module is used for conveying different accessories to the assembling module according to the control commands, the assembling module is used for assembling the accessories into the pluggable CPO microconnector of a model meeting the control command requirements according to the control commands, the acquisition module is used for acquiring various data generated in the assembling process, and the calculation module is used for generating quality indexes of products according to the acquired data of the acquisition module;

The assembly module comprises a clamping unit, a crimping unit, a welding unit and a trial unit, wherein the clamping unit is used for clamping various accessories to a designated position, the crimping unit is used for executing crimping operation among the accessories, the welding unit is used for welding the accessories at each welding point, and the trial unit is used for inserting a produced product into a test slot and detecting the performance of the product;

the automated assembly method comprises the following steps:

S1, a user selects the model of a pluggable CPO micro connector to be produced in a user interaction module, and a control module sends a corresponding control command to a feeding module and an assembly module according to user input;

S2, the feeding module conveys corresponding accessories to the assembling module according to the control command;

s3, the assembly module assembles the accessories into pluggable CPO microconnectors of the model to be produced according to the control command;

s4, the acquisition module acquires various data generated in the assembly process;

s5, a calculating module calculates the quality index of the product according to the data acquired by the acquisition module;

s6, the user interaction module displays the calculated quality index and various data acquired by the acquisition module;

;

Wherein ZLZB is a quality index, the larger the index is, the better the quality of the product is, e is a natural constant, WZZB is an installation position index for representing the deviation degree of the installation position of each part of the product, the larger the index value is, the larger the deviation degree is, For the purpose of installing equipment indexes, which are used for representing the performances of the crimping and welding units, the larger the index is, the worse the performances are,The method is a trial performance index of the product, and is used for representing the performance of the product in the trial process, and the larger the index is, the worse the performance is.

2. The automated assembly method of pluggable CPO microconnectors according to claim 1, wherein the user interaction module comprises an instruction receiving unit for receiving user instructions input by a user, and a display unit for displaying the quality index acquired by the computing module and various data acquired by the acquisition module.

3. The automated assembly method of pluggable CPO microconnectors according to claim 1, wherein the control module comprises an instruction conversion unit for converting user instructions input by a user into control commands for various parts of the system according to a communication protocol set in advance, and a command transmission unit for transmitting control commands to the feed module and the assembly module.

4. The automated assembly method of pluggable CPO microconnectors according to claim 1, wherein the feed module comprises a transport vehicle for transporting corresponding accessories from a warehouse according to control commands and placing the accessories on a feed tray for transporting various accessories to the assembly module, a feed tray provided on top of the conveyor belt, and a conveyor belt for storing the various accessories.

5. The automated assembly method of pluggable CPO microconnectors according to claim 1, wherein the acquisition module comprises an image data acquisition unit, a temperature data acquisition unit and a trial information acquisition unit, wherein the image data acquisition unit is used for capturing images of the clamping unit and the crimping unit during operation, the temperature data acquisition unit is used for acquiring various temperature data generated by the welding unit during welding, and the trial information acquisition unit is used for acquiring various trial data generated by the trial unit during trial of a product.

6. The automated assembly method of pluggable CPO microconnectors according to claim 1, wherein the assembly module assembles the accessories into a model of pluggable CPO microconnectors to be produced according to the control commands, comprising the steps of:

s31, clamping the base of the pluggable CPO micro connector to a designated position by a clamping unit according to a control command, and then clamping the internal element to the designated position;

S32, the compression joint unit compresses the internal element at the position to be compressed according to the control command;

S33, the welding unit welds the internal elements at the positions to be welded according to the control command;

s34, clamping the shell to a designated position by a clamping unit according to a control command, welding the shell and the base by a welding unit, and cooling to obtain a product;