Search

CN-121988493-A - Automobile part gluing device and gluing detection method

CN121988493ACN 121988493 ACN121988493 ACN 121988493ACN-121988493-A

Abstract

The invention discloses an automobile part gluing device and a gluing detection method, wherein the gluing device comprises an upper cover turnover mechanism and a lower cover positioning mechanism, the upper cover turnover mechanism is used for placing and positioning an automobile part upper cover, after glue spraying of the automobile part upper cover is completed by a glue spraying machine, the automobile part upper cover after glue spraying is positioned right above the automobile part lower cover, lifting is driven by a lifting cylinder to achieve gluing of the automobile part upper cover and the automobile part lower cover after turnover, the lower cover positioning mechanism is used for placing and positioning the automobile part lower cover, positioning locking is achieved through cooperation of fixing columns at four corners of the lower cover positioning mechanism and limiting columns of the upper cover turnover mechanism, and electric heating tubes in the heating groove heat glue. The invention reduces the adhesive waste, ensures the adhesive spraying uniformity, improves the bonding basic quality, meets the high-precision production requirement, prolongs the service life of parts, improves the production efficiency, reduces the labor intensity of operators and realizes large-scale high-efficiency production.

Inventors

  • TANG XINGLONG
  • Tang kangyun
  • TANG SIMING
  • CHEN SHAOZHOU
  • ZHU ZHONGWEI

Assignees

  • 重庆渝湘智成汽车配件有限公司

Dates

Publication Date
20260508
Application Date
20260206

Claims (10)

  1. 1. The gluing device for the automobile parts is characterized by comprising an upper cover overturning mechanism (1) and a lower cover positioning mechanism (2); The upper cover turnover mechanism (1) is used for placing and positioning an upper cover of an automobile part, after the glue spraying machine (38) is used for finishing glue spraying of the upper cover of the automobile part, the turnover motor is used for driving the turnover motor to turn 180 degrees, so that the upper cover of the automobile part after glue spraying is positioned right above a lower cover of the automobile part, and the lifting cylinder is used for driving the lifting so as to realize the jointing of the upper cover of the automobile part and the lower cover of the automobile part after the turnover of the upper cover of the automobile part; the lower cover positioning mechanism (2) is used for placing and positioning a lower cover of an automobile part, the lower cover position is fixed through a lower cover positioning groove (36), the fixing columns (16) at four corners of the lower cover positioning mechanism are matched with the limit columns (7) of the upper cover turnover mechanism (1) to realize positioning and locking, and an electric heating tube in the heating groove (37) heats the adhesive; And the glue spraying machine (38) is positioned at one side of the upper cover turnover mechanism (1) and is used for spraying the adhesive glue along the upper cover of the automobile part for one circle.
  2. 2. The automobile part gluing device according to claim 1, wherein the upper cover overturning mechanism (1) comprises overturning seats (3), wherein the overturning seats (3) are provided with upper cover limiting seats (5), the upper cover limiting seats (5) are provided with a plurality of positioning cylinders (6), four corners of the overturning seats (3) are provided with limiting columns (7), and each limiting column (7) is provided with a limiting hole (8), two ends of the overturning seats (3) are respectively connected with the inner sides of lifting boxes (9) in a rotating mode, and an overturning motor is arranged in any lifting box (9) and the output end of the overturning motor is used for driving the overturning seats (3) to rotate; The lower end of each lifting box body (9) is connected with the output end of a lifting cylinder, each lifting cylinder is respectively arranged in each base (10), a guide rod (11) is inserted on each base (10) in a sliding manner, and the upper end of each guide rod (11) is respectively connected with the lower end of each lifting box body (9); The lower cover positioning mechanism (2) comprises a base (12) arranged between two lifting boxes (9), the base (12) is provided with a lower cover limiting seat (15) matched with the upper cover limiting seat (5), four corners of the base (12) are provided with fixing columns (16), the upper ends of the fixing columns (16) are provided with fixing heads (17), and the fixing heads (17) are respectively used for being inserted into limiting holes (8).
  3. 3. The device for gluing automobile parts according to claim 2, wherein the lower cover limiting seat (15) comprises a plurality of supporting members (33) detachably connected with the base (12), the upper end of each supporting member (33) is simultaneously connected with the lower end of the lower cover placing member (35), and the upper end of the lower cover placing member (35) is provided with a lower cover positioning groove (36).
  4. 4. The device for sticking automobile parts according to claim 3, wherein the outer wall of the lower cover placing piece (35) is provided with a plurality of heating grooves (37), and electric heating pipes are arranged at the positions of the heating grooves (37).
  5. 5. The method for detecting the viscose of the automobile part is characterized by comprising the following steps of: S1, scanning a bonding part through visual detection equipment, and analyzing whether an adhesive layer is continuous, has no bubble, pinhole and crack defects, and whether an upper cover and a lower cover are opposite to the bonding part; S2, observing the surfaces of the upper cover and the lower cover after bonding, wherein deformation, scratch and color change damage caused by heating or pressurizing are avoided; s3, fixing the upper cover and the lower cover on a clamp of a tensile testing machine, applying axial tensile force, recording the maximum tensile force value when the bonding surface is separated, and simultaneously recording whether the adhesive layer is cohesive failure or interfacial peeling when the bonding surface is separated; S4, applying torsion force to the connecting parts of the upper cover and the lower cover, uniformly increasing torque to a set value, keeping for 30 seconds, observing that the upper cover and the lower cover do not rotate relatively and the bonding surface is not loose, and ensuring that the torque value is stable and does not suddenly drop; s5, placing the parts in a shearing test tool, applying shearing force along the parallel direction of the bonding surface, and testing the shearing damage resistance of the bonding surface; S6, judging that the part is qualified in adhesive according to the design standard and the requirements, if any detection item does not reach the standard, judging that the part is unqualified, marking the unqualified item, isolating, storing and analyzing reasons, re-detecting or reworking after rectifying, cleaning and packaging the qualified part after detection, processing the unqualified product according to a scrapping flow, resetting a detection tool, and making maintenance records.
  6. 6. The method for detecting the viscose of the automobile parts according to claim 5, wherein the step S1 specifically comprises the following steps: The contour of the adhesive layer is identified through the image gray level difference, the continuous gray level band is judged to be continuous, if dark spots, bright spots and broken gray level lines appear, the adhesive layer is judged to be defective, and meanwhile, the alignment deviation of the reference edges of the upper cover and the lower cover is calculated through the image coordinate comparison, so that the alignment deviation is less than or equal to 0.2mm. Fixing the parts on a rotatable workbench, wherein the lens and the gap form an angle of 30 degrees, the side light obliquely irradiates the gap, and the rotating workbench completes 360-degree full coverage scanning; 3-5 qualified pieces are randomly extracted from each batch, a separating force is applied along the parallel direction of the bonding surface, so that the adhesive layers are separated, the actual state of the adhesive layers is directly observed, and the judging parameters of the visual detection equipment are calibrated.
  7. 7. The method for detecting the adhesive of the automobile part according to claim 6, wherein before the adhesive detection, the adhesive spraying state of the upper cover of the automobile part is required to be checked, and the specific mode is as follows: Setting a fixed support on one side of the mechanical arm (39), setting an industrial camera and an LED light supplementing lamp on the fixed support, placing an upper cover qualified by standard glue spraying in an upper cover positioning groove (26), starting the camera to collect standard images, setting a glue spraying area reference profile, a glue breaking, a glue leakage judging threshold value and a glue overflow width measuring reference line in software, and storing parameters after calibration; The method comprises the steps of carrying out image acquisition on a sprayed upper cover through an industrial camera, carrying out noise reduction, gray enhancement and edge sharpening on the acquired image by software, removing ambient light interference and image noise points, and highlighting the contrast ratio of a glue spraying layer and an upper cover substrate; The method comprises the steps of identifying the distance between the edge of a bonding surface and the edge of the outer side of a glue spraying layer, measuring 3 evenly distributed measuring points in each frame of image to obtain a glue overflow width, measuring 1080 measuring points all around, recording the maximum value, judging that the glue overflow exceeds the standard if the maximum value exceeds 0.5mm, integrating the detection results of 360 frames of images to generate a glue spraying layer continuity report, glue leakage/glue breaking position coordinates and a glue overflow width distribution curve, synchronously transmitting the glue overflow width distribution curve to a display screen (32) of an operation panel (31), judging that the detection results show no glue breaking and glue leakage, the maximum value of the glue overflow width is less than or equal to 0.5mm, judging that the glue spraying of an upper cover is qualified by software, sending a signal to a glue device by a PLC, allowing the subsequent overturning and attaching procedure to be carried out, displaying the unqualified type and specific position by the display screen (32) and sending an alarm signal if the glue overflow exceeds the standard if the glue breaking and the glue leakage exceeds the standard, stopping operation by the glue device, taking down the unqualified upper covers by handles (29) on two sides of an upper cover placing piece (23) by workers, carrying out reworking, and detecting data of each batch of upper covers by detection software.
  8. 8. The method for detecting the adhesive of the automobile parts according to claim 7, wherein the color change damage in the step S2 is characterized in that the bonded upper cover and lower cover are placed in a light source box and are compared with the unbonded upper cover and lower cover in the same batch, whether the colors of the surfaces of the upper cover and the lower cover are consistent or not is observed, phenomena such as yellowing, darkness and local color difference are avoided, lab values of the surfaces of the upper cover and the lower cover are measured by a color difference meter, differences DeltaL, deltaa and Deltab of the Lab values of the upper cover and the lower cover and the standard parts are all less than or equal to 1.0, the color change damage is avoided, and if the differences are out of range, whether the temperature of a heating tank (37) exceeds the standard or not and whether the pressurizing pressure is abnormal or not is further checked. Wherein Δl is brightness difference, Δl=0 is no brightness change, Δl >0 is bright, Δl <0 is dark, and 1.0 is invisible to naked eyes. Δa is the red-green difference, Δa=0 is no red-green bias, Δa >0 is red bias, Δa <0 is green bias, and no red-green difference is less than or equal to 1.0; Δb is a yellow-blue difference, Δb=0 is no yellow Lan Pianxiang, Δb >0 is yellowish, Δb <0 is bluish, and less than or equal to 1.0 is yellow-blue difference.
  9. 9. The method for detecting the viscose of an automobile part according to claim 8, further comprising: The glue spraying parameter configuration module is used for presetting a glue spraying area reference contour, a glue breaking judging threshold value, a glue leakage judging threshold value and a glue overflow width upper limit value, storing parameter data of a standard glue spraying lattice image, and simultaneously associating cooperative working parameters of a glue spraying machine and a mechanical arm; The glue spraying image acquisition and processing module is used for triggering the industrial camera to acquire a glue spraying image of the upper cover after receiving a glue spraying completion signal, carrying out noise reduction, gray enhancement and edge sharpening on the image, extracting a glue spraying layer area through an image segmentation algorithm, and comparing the glue spraying layer area with a preset reference contour; The glue spraying quality judging module is used for judging glue spraying quality according to image comparison results, identifying glue breaking, glue leakage and glue overflow exceeding conditions, generating a glue spraying layer continuity report, a defect position coordinate and a glue overflow width distribution curve, synchronously transmitting to an operation panel display screen, sending a laminating permission signal if the glue spraying layer continuity report is qualified, triggering an alarm and suspending equipment operation if the glue spraying layer continuity report is unqualified; The viscose detection parameter configuration module is used for setting visual detection equipment parameters, upper and lower cover alignment deviation thresholds, tensile test speed, torque holding time and chromatic aberration judgment thresholds; The comprehensive viscose detection and analysis module is used for receiving scanning data of the visual detection equipment, analyzing continuity and internal defects of the viscose layer, and calculating alignment deviation of the upper cover and the lower cover, receiving data of a tension test, a torque test and a shearing test, recording a maximum tension value, a damage type of the viscose layer and torque stability, receiving measurement data of a color difference meter, and comparing Lab value differences; And the detection result integrating and processing module is used for summarizing all detection item data, judging whether the part viscose is qualified or not, marking and classifying unqualified items, recording each batch of detection data, generating a detection report, and simultaneously associating a qualified part cleaning and packaging process with an unqualified part reworking and scrapping process.
  10. 10. The method for detecting the viscose of the automobile parts according to claim 9, further comprising a data storage and tracing module, wherein the data storage and tracing module is used for storing the viscose spraying detection data, the viscose comprehensive detection data, the equipment operation parameters and the defect processing records of each batch, and supporting the data inquiry and tracing according to the dimensions of batch, defect type, detection time and the like; The equipment linkage control module is used for communicating with the PLC, receiving a positioning cylinder fixing signal, a turnover motor running signal and a lifting cylinder action signal, and coordinating linkage of glue spraying detection and a glue attaching procedure.

Description

Automobile part gluing device and gluing detection method Technical Field The invention relates to the field of automobile part processing, in particular to an automobile part viscose device and a viscose detection method. Background In the production and manufacturing process of automobile parts, a plurality of parts are required to be fixed, sealed or spliced through an adhesive process, so that the structural stability, assembly precision and use reliability of the parts are ensured, and the severe requirements of automobile products on the connection strength and the tightness of the parts in the driving process are met, so that the adhesive is an indispensable key process in the production of the automobile parts; The existing automobile part gluing operation mostly adopts a manual operation mode, and the specific operation steps are as follows: Firstly, an operator needs to prepare an upper cover and a lower cover of an automobile part to be bonded in advance, and respectively place the upper cover and the lower cover in a designated area on a workbench to ensure that the part is stably placed without position offset; then, an operator holds the glue spraying tool, the glue spraying amount and the glue spraying path are manually controlled according to the bonding requirement of the parts, the glue is uniformly coated on the bonding surface of the upper cover, the thickness of the glue is controlled by experience in the coating process, and the situation of missing coating or excessive coating is avoided; after the glue spraying is finished, the operator needs to quickly turn the upper cover to enable the bonding surface to be downward, aim at the lower cover arranged below, and slowly laminate and press the upper cover and the lower cover to ensure that the bonding positions of the upper cover and the lower cover are completely aligned; According to the prior art, on one hand, when manual glue spraying is performed, operators are difficult to accurately control glue spraying amount and glue spraying paths, so that glue is unevenly coated, sometimes missing coating occurs, the bonding strength is affected by little coating, and sometimes excessive glue coating occurs to cause glue waste; on the other hand, when the upper cover is manually turned over and the lower cover is aligned, the visual judgment and the hand operation precision of operators are completely depended, the positioning deviation of the upper cover and the lower cover is extremely easy to occur, so that the assembly precision of parts is influenced, on the other hand, when the adhered parts are manually fixed, the uniform and consistent fixing force is difficult to ensure, the unstable adhesion and the loosening of the parts are easy to occur; In addition, the traditional detection is dependent on manual visual observation, defects such as bubbles, pinholes and cracks in an adhesive layer cannot be identified, alignment deviation of an upper cover and a lower cover cannot be accurately measured, high-precision assembly requirements cannot be met, a standardized flow is not formed for detecting the bonding strength, unified tensile force, torque and shearing force test specifications are not formed, bonding performance is difficult to quantify, meanwhile, detection data are not recorded systematically, defect cause analysis of unqualified products is difficult, in addition, manual operation flow is complicated, all working procedures are manually participated, production efficiency is low, labor intensity of operators is high, product quality consistency is poor due to human factors, and failure rate is difficult to effectively control. Therefore, a person skilled in the art is dedicated to providing an automobile part gluing device and a gluing detection method capable of effectively solving the above technical problems. Disclosure of Invention In order to achieve the above purpose, the invention provides an automobile part gluing device, which comprises an upper cover overturning mechanism and a lower cover positioning mechanism; The upper cover turnover mechanism is used for placing and positioning the upper cover of the automobile part, after the glue spraying machine is used for finishing glue spraying of the upper cover of the automobile part, the turnover motor is used for driving the turnover motor to turn over 180 degrees, so that the upper cover of the automobile part after glue spraying is positioned right above the lower cover of the automobile part, and the lifting cylinder is used for driving the lifting so as to realize the jointing between the upper cover of the automobile part and the lower cover of the automobile part after the turnover of the upper cover of the automobile part; The lower cover positioning mechanism is used for placing and positioning a lower cover of an automobile part, the lower cover position is fixed through a lower cover positioning groove, the fixing columns at four corners of the lower cover po