CN-122026254-A - High-speed harness Mylar aluminum foil synchronous removing method and system based on infrared monitoring

CN122026254ACN 122026254 ACN122026254 ACN 122026254ACN-122026254-A

Abstract

The invention relates to the technical field of wire harness processing, in particular to a method and a system for synchronously removing a Mylar aluminum foil of a high-speed wire harness based on infrared monitoring, which comprise the following steps: receiving a Mylar aluminum foil removal instruction, paying off and tensioning the high-speed wire harness based on the Mylar aluminum foil removal instruction to obtain a target tensioning wire harness, obtaining a reference point to be cut by utilizing the target tensioning wire harness and a preset wire core exposed length, removing a sheath from the target tensioning wire harness by utilizing the reference point to be cut and a sheath removal unit to obtain an intermediate wire harness, performing secondary positioning on the intermediate wire harness by utilizing the reference point to be cut to obtain an actual aluminum foil removal length, and performing synchronous cutting on the intermediate wire harness by utilizing a stripping unit in a Mylar aluminum foil removal environment and the actual aluminum foil removal length to obtain the target removal wire harness. The invention can improve the removal efficiency and the precision of the high-speed wire harness Mylar aluminum foil.

Inventors

ZHAO JIANGFENG
XIAO KE
LIANG FU
QIU LIYANG
ZHANG YI

Assignees

东莞市鼎力自动化科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260130

Claims (10)

1. The method for synchronously removing the high-speed wire harness Mylar aluminum foil based on infrared monitoring is characterized by comprising the following steps of: Receiving a Mylar aluminum foil removal instruction, and confirming a Mylar aluminum foil removal environment based on the Mylar aluminum foil removal instruction, wherein the Mylar aluminum foil removal environment comprises a plurality of high-speed wire harnesses, a sheath removal unit and a stripping unit; the following operation is performed for each of the plurality of high-speed wire harnesses in the mylar aluminum foil removal environment: paying off and tensioning the high-speed wire harness to obtain a target tensioning wire harness; acquiring a reference point to be cut by using a target tensioning wire harness and a preset wire core exposed length; performing sheath removal on the target tensioning wire harness by using the reference point to be cut and a sheath removal unit to obtain an intermediate wire harness; Performing secondary positioning on the middle wire harness by utilizing the datum point to be cut to obtain the actual aluminum foil removal length; synchronously cutting the middle wire harness by using a stripping unit in a Mylar aluminum foil removal environment and the actual aluminum foil removal length to obtain a target removal wire harness; and summarizing the target removing wire harnesses to obtain a plurality of target removing wire harnesses.
2. The method for synchronously removing the mylar aluminum foil of the high-speed wire harness based on infrared monitoring as claimed in claim 1, wherein the step of obtaining the reference point to be cut by using the target tensioning wire harness and the preset wire core exposed length comprises the following steps: image acquisition is carried out on the target tensioning harness by utilizing a pre-confirmed industrial camera, so that a target image is obtained; Preprocessing the target image to obtain a preprocessed harness image; binarizing the preprocessed wire harness image to obtain a target binarized image; Performing edge extraction on the target binarized image to obtain a target harness profile; acquiring a minimum circumscribed rectangle based on the outline of the target wire harness; acquiring a central axis of the wire harness based on the minimum circumscribed rectangle; Identifying a wire core initiation point based on the wire harness central axis; acquiring an initial cutting datum point by utilizing a central axis of the wire harness, a wire core starting point and a wire core exposed length; Acquiring the pixel length of a processing area by utilizing the cutting datum point and the wire core initial point; Performing length mapping on the pixel length of the processing area to obtain the actual length; and obtaining a reference point to be cut by using the target tensioning wire harness and the actual length.
3. The method for synchronously removing the mylar aluminum foil from the high-speed wire harness based on infrared monitoring according to claim 2, wherein the step of performing sheath removal on the target tensioning wire harness by using the reference point to be cut and the sheath removal unit to obtain an intermediate wire harness comprises the following steps: acquiring a sheath starting point of a target tensioning wire harness; Confirming the wire harness to be removed by using the reference point to be cut, the starting point of the sheath and the target tensioning wire harness; Detecting the thickness of the sheath of the wire harness to be removed to obtain the thickness of the sheath; acquiring a cutter feeding depth based on the thickness of the sheath; and (5) performing sheath stripping on the wire harness to be removed with the sheath by utilizing the cutter feeding depth and the sheath removing unit to obtain an intermediate wire harness.
4. The method for synchronously removing the Mylar aluminum foil from the high-speed wire harness based on infrared monitoring according to claim 3, wherein the step of detecting the thickness of the wire harness to be removed to obtain the thickness of the sheath comprises the following steps: acquiring a sheath section image of a wire harness of which the sheath is to be removed; acquiring an initial contour of the sheath by using the section image of the sheath; extracting a plurality of inner contour edge points by using the initial contour of the sheath; The following is performed for each of a plurality of inner contour edge points: acquiring an outer contour edge point based on the inner contour edge point; Calculating the initial contour thickness by utilizing the inner contour edge points and the outer contour edge points; Summarizing the initial contour thicknesses to obtain a plurality of initial contour thicknesses; Acquiring a target thickness based on the plurality of initial profile thicknesses; and mapping the length of the target thickness to obtain the thickness of the sheath.
5. The method for synchronously removing the Mylar aluminum foil from the high-speed wire harness based on infrared monitoring according to claim 4, wherein the step of secondarily positioning the middle wire harness by using the reference point to be cut to obtain the actual aluminum foil removal length comprises the following steps: acquiring an end wire harness of the middle wire harness based on the reference point to be cut; carrying out infrared scanning on the end wire harness by utilizing a pre-confirmed infrared imaging unit to obtain an infrared scanning image sequence; Carrying out time domain average processing on the infrared scanning image sequence to obtain an end temperature distribution image; performing characteristic analysis on the end temperature distribution image to obtain a Mylar aluminum foil starting point; calculating the pixel length of the central axis by using the initial point of the Mylar aluminum foil and the reference point to be cut; The actual aluminum foil removal length is obtained based on the center axis pixel length.
6. The method for synchronously removing the mylar aluminum foil from the high-speed wire harness based on infrared monitoring as claimed in claim 5, wherein the step of synchronously cutting the intermediate wire harness by using a stripping unit in a mylar aluminum foil removing environment and an actual aluminum foil removing length to obtain a target removing wire harness comprises the following steps: Preheating the intermediate wire harness by utilizing a pre-confirmed infrared preheating unit to obtain a preheated wire harness; detecting the surface temperature of the preheated wire harness to obtain a surface temperature value; Comparing the surface temperature value with a preset surface temperature threshold value; If the surface temperature value is smaller than the surface temperature threshold value, taking the preheating wire harness as an intermediate wire harness, and returning to the step of preheating the intermediate wire harness by using the pre-confirmed infrared preheating unit until the surface temperature value is greater than or equal to the surface temperature threshold value; If the surface temperature value is greater than or equal to the surface temperature threshold value, fixing the preheating wire harness by using a pre-confirmed clamping device to obtain a fixed wire harness; obtaining the thickness of the Mylar aluminum foil by using a fixed wire harness; And carrying out Mylar aluminum foil removal on the fixed wire harness by using the stripping unit, the Mylar aluminum foil thickness and the actual aluminum foil removal length to obtain the target removal wire harness.
7. The method for synchronously removing the mylar aluminum foil from the high-speed wire harness based on infrared monitoring according to claim 6, wherein the step of removing the mylar aluminum foil from the fixed wire harness by using the stripping unit, the thickness of the mylar aluminum foil and the actual removal length of the aluminum foil to obtain the target removal wire harness comprises the following steps: Performing parameter matching by using the thickness of the Mylar aluminum foil and a pre-established laser process database to obtain target initial energy density, initial laser spot diameter and initial scanning speed; Calculating initial average power by using the target initial energy density, the initial laser spot diameter and the initial scanning speed, wherein a calculation formula of the initial average power is as follows: Wherein, the Indicating the initial average power of the power source, The circumference ratio is indicated as such, Which represents the initial energy density of the material, The initial laser spot diameter is shown as, Representing an initial scan speed; acquiring a target stripping unit based on the target initial energy density, the initial laser spot diameter, the initial scanning speed, the initial average power and the stripping unit; Identifying a test area harness based on the fixed harness; performing laser scanning stripping on the wire harness of the test area to obtain a pre-stripped sample; Carrying out infrared imaging detection on the pre-stripped sample to obtain the cutting integrity of the Mylar aluminum foil; Acquiring and optimizing laser process parameters based on the cutting integrity of the Mylar aluminum foil; acquiring an optimized stripping unit based on the optimized laser process parameters and the target stripping unit; and (5) performing laser scanning stripping on the fixed wire harness by using an optimized stripping unit to obtain the target removal wire harness.
8. The method for synchronously removing the Mylar aluminum foil of the high-speed wire harness based on infrared monitoring according to claim 7, wherein the step of carrying out infrared imaging detection on the pre-peeled sample to obtain the cutting integrity of the Mylar aluminum foil comprises the following steps: performing infrared scanning on the pre-stripped sample by using a pre-confirmed thermal infrared imager to obtain an original thermal radiation image; performing binarization segmentation on the original thermal radiation image to obtain a Mylar aluminum foil residual region image and an effective stripping region image; Acquiring the number of residual pixel points of an image of a Mylar aluminum foil residual region; acquiring the number of effective pixels of an effective stripping area image; calculating the cutting integrity of the Mylar aluminum foil by using the number of residual pixels and the number of effective pixels, wherein the calculation formula of the cutting integrity of the Mylar aluminum foil is as follows: Wherein, the Indicating the cutting integrity of the Mylar aluminum foil, The number of the residual pixel points is indicated, Representing the number of active pixels.
9. The method for synchronously removing the Mylar aluminum foil of the high-speed wire harness based on infrared monitoring according to claim 8, wherein the acquiring and optimizing the laser process parameters based on the cutting integrity of the Mylar aluminum foil comprises the following steps: comparing the cutting integrity of the Mylar aluminum foil with a preset integrity threshold; If the cutting integrity of the Mylar aluminum foil is smaller than the integrity threshold, calculating an energy density adjustment coefficient based on the cutting integrity of the Mylar aluminum foil; calculating the optimized energy density by utilizing the energy density adjustment coefficient and the target initial energy density; calculating optimized power by using the optimized energy density, the initial laser spot diameter and the initial scanning speed; Summarizing the optimized energy density, the initial laser spot diameter, the initial scanning speed and the optimized power to obtain optimized laser process parameters; And if the cutting integrity of the Mylar aluminum foil is greater than or equal to the integrity threshold, summarizing the initial energy density, the initial laser spot diameter, the initial scanning speed and the initial average power of the target to obtain optimized laser process parameters.
10. High-speed pencil wheat draws aluminium foil synchronous removal system based on infrared control, its characterized in that, the system includes: The high-speed wire harness tensioning module is used for receiving a Mylar aluminum foil removal instruction and confirming a Mylar aluminum foil removal environment based on the Mylar aluminum foil removal instruction, wherein the Mylar aluminum foil removal environment comprises a plurality of high-speed wire harnesses, a sheath removal unit and a stripping unit; the following operation is performed for each of the plurality of high-speed wire harnesses in the mylar aluminum foil removal environment: paying off and tensioning the high-speed wire harness to obtain a target tensioning wire harness; the cutting reference positioning module is used for acquiring a reference point to be cut by utilizing the target tensioning wire harness and the preset wire core exposed length; The wire harness sheath removing module is used for removing the sheath of the target tensioning wire harness by utilizing the datum point to be cut and the sheath removing unit to obtain an intermediate wire harness; The Maillard aluminum foil stripping module is used for carrying out secondary positioning on the middle wire harness by utilizing the reference point to be cut to obtain the actual aluminum foil removal length; synchronously cutting the middle wire harness by using a stripping unit in a Mylar aluminum foil removal environment and the actual aluminum foil removal length to obtain a target removal wire harness; and summarizing the target removing wire harnesses to obtain a plurality of target removing wire harnesses.

Description

High-speed harness Mylar aluminum foil synchronous removing method and system based on infrared monitoring Technical Field The invention relates to the technical field of wire harness processing, in particular to a high-speed wire harness Mylar aluminum foil synchronous removing method and system based on infrared monitoring. Background The high-speed wire harness is used as a core connecting component of electrical equipment, automobiles and new energy products, and the outside of the high-speed wire harness is generally coated with a Mylar aluminum foil layer, so that the high-speed wire harness has the effects of insulation and interference shielding. Before the subsequent processes of wire harness terminal crimping, welding and the like, the Mylar aluminum foil layer at the designated position needs to be removed. Paying-off tensioning, reference point determination, sheath removal and secondary positioning are sequentially completed on the high-speed wire harness, and then the Mylar aluminum foil is synchronously stripped according to the actual length, so that the target wire harness is finally obtained. At present, the Mylar aluminum foil is removed mainly through manual adjustment or simple mechanical positioning, and although the removal purpose can be basically realized by adopting a traditional method, the problems of low yield, low processing precision and excessive removal exist. Therefore, optimizing the synchronous removal of the high-speed wire harness Mylar aluminum foil has important significance for improving the removal efficiency and the accuracy of the high-speed wire harness Mylar aluminum foil. Disclosure of Invention The invention provides a high-speed wire harness Mylar aluminum foil synchronous removal method based on infrared monitoring and a computer readable storage medium, and mainly aims to improve the removal efficiency and accuracy of the high-speed wire harness Mylar aluminum foil. In order to achieve the above purpose, the invention provides a method for synchronously removing a Mylar aluminum foil of a high-speed wire harness based on infrared monitoring, which comprises the following steps: Receiving a Mylar aluminum foil removal instruction, and confirming a Mylar aluminum foil removal environment based on the Mylar aluminum foil removal instruction, wherein the Mylar aluminum foil removal environment comprises a plurality of high-speed wire harnesses, a sheath removal unit and a stripping unit; the following operation is performed for each of the plurality of high-speed wire harnesses in the mylar aluminum foil removal environment: paying off and tensioning the high-speed wire harness to obtain a target tensioning wire harness; acquiring a reference point to be cut by using a target tensioning wire harness and a preset wire core exposed length; performing sheath removal on the target tensioning wire harness by using the reference point to be cut and a sheath removal unit to obtain an intermediate wire harness; Performing secondary positioning on the middle wire harness by utilizing the datum point to be cut to obtain the actual aluminum foil removal length; synchronously cutting the middle wire harness by using a stripping unit in a Mylar aluminum foil removal environment and the actual aluminum foil removal length to obtain a target removal wire harness; and summarizing the target removing wire harnesses to obtain a plurality of target removing wire harnesses. Optionally, the obtaining the reference point to be cut by using the target tensioning harness and the preset wire core exposed length includes: image acquisition is carried out on the target tensioning harness by utilizing a pre-confirmed industrial camera, so that a target image is obtained; Preprocessing the target image to obtain a preprocessed harness image; binarizing the preprocessed wire harness image to obtain a target binarized image; Performing edge extraction on the target binarized image to obtain a target harness profile; acquiring a minimum circumscribed rectangle based on the outline of the target wire harness; acquiring a central axis of the wire harness based on the minimum circumscribed rectangle; Identifying a wire core initiation point based on the wire harness central axis; acquiring an initial cutting datum point by utilizing a central axis of the wire harness, a wire core starting point and a wire core exposed length; Acquiring the pixel length of a processing area by utilizing the cutting datum point and the wire core initial point; Performing length mapping on the pixel length of the processing area to obtain the actual length; and obtaining a reference point to be cut by using the target tensioning wire harness and the actual length. Optionally, the removing the sheath from the target tensioning harness by using the reference point to be cut and the sheath removing unit to obtain an intermediate harness includes: acquiring a sheath starting point of a target tensioning wire harness; C