A kind of adhesive bonding strength testing device and method

Abstract

The present invention relates to the technical field of adhesive strength testing, and discloses an adhesive bonding strength testing device and method, comprising a test bench, wherein a support rod is fixedly connected to a side surface of the test bench, a support arm is fixedly connected to a top surface of the test bench, a hydraulic rod is fixedly connected to a rear side surface of the support arm, a strength testing mechanism is arranged at the top end of the hydraulic rod, a pressure rotating shaft is arranged at the top surface of the strength testing mechanism, a pressure sensor is arranged at the top end of the pressure rotating shaft, a mounting plate is arranged at the top side of the pressure sensor, the strength testing mechanism comprises a pressure groove rod, a pressure sliding rod, an upper lifting plate, a guide sliding rod, and a lower fixing plate, the pressure groove rod is fixedly connected to the top end of the hydraulic rod, and the present invention measures the shear force applied by two bonding components at a specific rate by stretching the coating disc surface, and the shear strength of the bonding can be determined by measuring the maximum shear force applied before the bonding fails.

Description

Technical Field

[0001] The invention relates to the technical field of adhesive strength testing, and in particular to an adhesive bonding strength testing device and method. Background Art

[0002] Adhesive bond strength testing is a method of evaluating the strength of the bond provided by an adhesive when joining two or more materials. This testing is critical to ensuring the reliability and stability of bonded components because it can help determine whether the bond can withstand the expected stress, pressure and environmental conditions.

[0003] The patent with application number CN201921576530.5 discloses a ceramic tile adhesive tensile bonding strength testing device, including a placement platform, a universal probe and a universal tensile testing machine, the placement platform includes a first platform, a second platform and a third platform, the bottom of the first platform is fixed to the support of the universal tensile testing machine through a support, the second platform can be slidably installed on the first platform, the third platform can be slidably installed on the second platform, the third platform can move left and right relative to the first platform, the second platform can move forward and backward relative to the first platform, the upper end surface of the third platform is provided with a third groove capable of clamping ceramic tiles, the upper surface of the ceramic tiles is coated with ceramic tile adhesive, one end of the universal probe is connected to the ceramic tile adhesive on the ceramic tile, and the other end of the universal probe is connected to the universal tensile testing machine. This patent can improve the accuracy of ceramic tile adhesive tensile bonding strength detection.

[0004] However, there is still a problem that structural looseness may affect the test strength. Therefore, it is necessary to design an adhesive bonding strength test device and method that prevents structural looseness and facilitates rapid installation. Summary of the invention

[0005] The object of the present invention is to provide an adhesive bonding strength testing device and method to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an adhesive bonding strength testing device, comprising a test bench, a support rod is fixedly connected to the side of the test bench, a support arm is fixedly connected to the top surface of the test bench, a hydraulic rod is fixedly connected to the rear side of the support arm, a strength testing mechanism is arranged at the top of the hydraulic rod, a pressure shaft is arranged at the top surface of the strength testing mechanism, a pressure sensor is arranged at the top of the pressure shaft, and a mounting plate is arranged at the top side of the pressure sensor;

[0007] The strength testing mechanism includes a pressure groove rod, a pressure sliding rod, an upper lifting plate, a guide sliding rod, a lower fixed plate, a rotating gear disk, a positioning strip, a force disk, a paint disk, a push block, and a positioning groove. The pressure groove rod is fixedly connected to the top of the hydraulic rod, the pressure sliding rod slides through the side of the pressure groove rod, the lower fixed plate is fixedly connected to the top of the support arm, the guide sliding rod is provided at four places, and the four guide sliding rods all slide through the top surface of the lower fixed plate, the upper lifting plate is fixedly connected to the top of the guide sliding rod, the rotating gear disk is provided at two places, and the two rotating gear disks are respectively rotatably connected to the top surface of the lower fixed plate and the bottom surface of the upper lifting plate, the positioning groove is provided on the side of the rotating gear disk, and the positioning bar slides The cam is connected to the inner wall of the positioning groove, the force-bearing disk is fixedly connected to the side of the positioning strip away from the rotating gear disk, the paint disk is fixedly connected to the side of the force-bearing disk away from the positioning strip, the push block is fixedly connected to the edge side of the force-bearing disk, the upper lifting plate is fixedly connected to the pressure sliding rod, a spring is arranged on the outer side of the bottom end of the guide sliding rod, and the two ends of the spring are respectively fixedly connected to the guide sliding rod and the lower fixed plate, the positioning strip is rotatably connected to the rotating gear disk, the force-bearing disk and the top surface of the rotating gear disk fit each other, when starting the test, the adhesive is evenly applied to the surface of one of the paint disks, and the paint disk at the other is attached to the surface of the adhesive-applying paint disk, and the positioning strips connected to the two force-bearing disks are kept parallel, After the adhesive is completely solidified, the hydraulic rod is contracted to drive the pressure groove rod to pull the pressure sliding rod, so that the pressure sliding rod is compressed and drives the upper lifting plate to move downward. During the downward movement of the upper lifting plate, the connected guide sliding rod is pushed closer to the lower fixed plate. After that, the paint disc is installed on the rotating gear disc, and the positioning strip is aligned with the card slot on the rotating gear disc and inserted. After the positioning strip is completely immersed in the inner wall of the rotating gear disc, the push block is pushed by hand to make the force disc drive the positioning strip to be stuck in the inner wall of the rotating gear disc. The first step of fixation is achieved through the mutual cooperation of the structural positioning strip and the card slot. Then the positioning strip is stuck by the inner wall of the rotating gear disc through rotation, and the force disc is close to the rotating gear disc to prevent the influence of structural looseness on the test strength. During the installation process, the structural card connection is convenient for quick installation and disassembly, which improves the replacement efficiency and reduces the time required for replacement. The installed paint tray is extended by the hydraulic rod at this time, so that the upper lifting plate has a movement tendency away from the lower fixed plate. At this time, the rotating gear plate connected to the lower fixed plate and the rotating gear plate connected to the upper lifting plate move relative to each other, and the rotating gear plate generates a pulling force on the bonded paint tray. The pulling force generated at this time pulls the pressure sensor through the compressed shaft connected to the rotating gear plate, and the pressure sensor records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured through the stretching of the paint tray surface. The shear strength of the bond can be determined by measuring the maximum shear force applied before the bond fails.

[0008] According to the above technical scheme, an angle change testing mechanism is arranged on the right side of the strength testing mechanism, and the angle change testing mechanism includes a slot tooth, an engaging disk, a coaxial groove cylinder, a linkage rod, a connecting rod fixed seat, a servo motor, a motor fixed seat, a rubber scraper, an elastic scraper, and a positioning rod. The slot tooth is fixedly connected to the outer surface of the rotating gear disk, the engaging disk is rotatably connected to the top surface of the lower fixed plate, the coaxial groove cylinder is fixedly connected to the top surface of the engaging disk, the connecting rod fixed seat is arranged on the front side of the engaging disk, the linkage rod is slidably connected to the side surface of the connecting rod fixed seat, the motor fixed seat is fixedly connected to the bottom surface of the lower fixed plate, the servo motor is fixedly connected to the side surface of the motor fixed seat, the sleeve is slidably connected to the top end of the linkage rod away from the connecting rod fixed seat, and the rubber scraper is slidably connected to the sleeve away from the linkage rod. The end portion, the elastic scraper is fixedly connected to the side surface of the shovel rubber sheet, the positioning rod is fixedly connected to the bottom side end of the linkage rod, the meshing disk is meshed with the slot teeth, the linkage rod fixed seat is fixedly connected to the lower fixed plate, the side surface of the coaxial groove cylinder is provided with a groove, and the groove and the linkage rod are fitted with each other, and the groove on the surface of the coaxial groove cylinder is fan-shaped, the linkage rod passes through one side of the linkage rod fixed seat to the other side, the output shaft of the servo motor is fixedly connected to the axis of the meshing disk, the positioning rod is slidably connected to the linkage rod fixed seat, the positioning rod and the slot teeth constitute a locking structure, a spring is arranged on the outer side of the linkage rod, and the two ends of the spring are respectively fixedly connected to the linkage rod and the linkage rod fixed seat, the end of the positioning rod is fixedly connected with a deformable rubber block, a spring is arranged inside the sleeve, and The two ends of the spring are fixedly connected to the scraper rubber piece and the linkage rod respectively. After the adhesive evenly applied on the top surface of the paint tray contacts and bonds with another paint tray, the excess adhesive will be squeezed out from the edge of the paint tray. In order to prevent the overflowing adhesive from bonding to the joints of the edges of the two paint trays and affecting the accuracy of the test strength, the servo motor connected to the motor holder is controlled by an external terminal to operate, so that the output shaft of the servo motor rotates to drive the meshing disk and the coaxial grooved cylinder to rotate. When the linkage rod does not fit into the groove of the coaxial grooved cylinder, the linkage rod moves away from the paint tray, and the spring on the outside of the linkage rod is in a compressed state, while the sleeve connected to the linkage rod releases the elastic force inside to push the scraper rubber piece close to the edge of the paint tray. The spring that releases the elastic force cuts and scrapes off the rubber through the elastic scraper on the scraper rubber piece, and the scraper rubber piece is compressed. The force acting on the solidified adhesive is small. At this time, the positioning rod connected to the linkage rod moves away from the paint disc with the linkage rod. The rotation of the meshing disc drives the meshing rotating gear disc to rotate, and the rubber scraper and the rotating gear disc rotate to cut the excess adhesive on the edge of the paint disc through the elastic scraper, and then use the rubber scraper to scrape off the cut adhesive. The meshing disc rotates one circle to rotate the rotating gear disc, until the meshing disc rotates four times and the rotating gear disc rotates one circle to clean up the excess adhesive. In this process, the positioning rod is stuck with the groove teeth through the rubber block, so that the meshing disc continues to rotate, and the positioning rod is deformed by the rubber block and moves away from the paint disc with the linkage rod and disengages from the groove teeth. The stretching angle of the paint disc is adjusted by rotating the rotating gear disc, so that multiple sets of data can be measured for stretching at different rotation angles of the paint disc.Therefore, the average value is calculated based on multiple groups of data to eliminate the measurement error. At the same time, as the meshing disk drives the connected coaxial grooved cylinder to rotate, the linkage rod is reset under the action of the spring and falls into the side groove of the coaxial grooved cylinder. At this time, the movement of the linkage rod will push the positioning rod close to the edge of the rotating gear disk. At this time, the rubber sheet of the paint disc shovel is compressed and slides along the linkage rod through the connected sleeve and squeezes the spring, so that the positioning rod connected to the linkage rod is engaged with the groove teeth through the rubber block. At this time, the positioning rod is engaged with the groove teeth through the end rubber, which can prevent the paint disc from rotating during the stretching process. The continuous rotation of the meshing disk will cause the side of the coaxial grooved cylinder to squeeze the linkage rod, so that the linkage rod is separated from the coaxial grooved cylinder and contacts the outer wall. At this time, the linkage rod is pushed away from the paint disc. In this process, the meshing disk engages the groove The teeth make the rotating gear plate rotate, and the rotating gear plate squeezes the rubber block connected to the positioning rod through the slot teeth, so that the positioning rod is separated from the slot teeth as the linkage rod moves away from the paint plate after the rubber block is deformed, preventing the paint plate from rotating during the stretching process from affecting the test results and avoiding interference. The function of the sleeve slot teeth is to allow the shovel rubber piece connected to the sleeve slot teeth to pass through the internal spring of the sleeve slot teeth, so that the shovel rubber piece always fits the paint plate, and the linkage rod approaches or moves away from the rotating gear plate to make the slot teeth connected to the linkage rod away from the slot teeth connected to the rotating gear plate. When the linkage rod approaches the rotating gear plate, the linkage rod squeezes the sleeve slot teeth to make the shovel rubber piece approach the paint plate. At this time, the force applied by the shovel rubber piece on the paint plate is greater than the force when the linkage rod is away from the rotating gear plate, which can scrape off the glue firmly attached to the paint plate.

[0009] The cam is provided with a plurality of sliding plates, the plurality of sliding plates are provided with a plurality of sliding plates, the plurality of sliding plates are provided with a plurality of sliding plates, and the plurality of sliding plates are provided with a plurality of sliding plates respectively. The slot block is fixedly connected, and the side of the slot block is provided with an inclined slot, and the inclined slot is slidably connected to the bottom of the slot rod. The wiper block is used to wipe off the scraped adhesive. When the upper lifting plate and the lower fixed plate move away from each other, the slot rod moves upward to make the end slide along the side of the compressed slide rod, and the compressed slide rod is guided by the slot block slide rod to approach the paint tray. After the shear strength test is completed, the stripping block is pushed to the side of the paint tray, and when the upper lifting plate and the lower fixed plate move away from each other, the slot block slides along the slot block slide rod and pushes the cross rail to move, and then the cross rail moves to push the stripping block to apply pressure to the joint of the two paint trays, and the pressure change is recorded by the pressure sensor. By applying pressure, the two components are fixed on the tensile testing machine, and a force perpendicular to the bonding interface is applied until the bonding fails. The peel strength of the bonding can be determined by measuring the maximum peeling force applied before the bonding fails.

[0010] According to the above technical solution, a protective structure is provided on the outer side of the strength testing mechanism, and the protective structure includes a protective baffle, a guide bar, a connecting rod, an inclined slot rod, and a thin rod. The guide bar is slidably connected to the outer surface of the lower fixed plate, and the protective baffle is fixedly connected to the side of the guide bar away from the lower fixed plate. One end of the connecting rod is fixedly connected to the side wall of the protective baffle, and the other end of the connecting rod is fixedly connected to the inclined slot rod. The thin rod is fixedly connected to the top side of the hydraulic rod. The protective baffle is made of transparent acrylic material, and the protective baffle and the lower fixed plate are in contact with each other. The rod is slidably connected to the inclined groove rod. When the two paint discs are peeled and pressed until the adhesion fails through the peeling block, the two paint discs are separated. At the moment the paint discs are completely separated, the solidified adhesive solid fragments will be ejected. The hydraulic rod is in an extended state and is fully extended after the two paint discs are separated. The hydraulic rod is extended through the thin rod to push the inclined groove rod upward, so that the connecting rod connected to the inclined groove rod drives the connected protective baffle to move, and the protective baffle slides along the side of the lower fixed plate through the guide strip, so that the protective baffle quickly blocks the ejected adhesive fragments upward, thereby improving the safety of the test.

[0011] A testing method for an adhesive bonding strength testing device, comprising:

[0012] S1: When starting the test, install the paint tray on the rotating gear plate, align the positioning strip with the positioning slot on the rotating gear plate and insert it, let the positioning strip completely sink into the inner wall of the rotating gear plate, and then push the push block by hand, so that the force plate drives the positioning strip to be stuck on the inner wall of the rotating gear plate. The first step of fixing is achieved through the mutual cooperation of the structural positioning strip and the positioning slot, and then the positioning strip is stuck to the inner wall of the rotating gear plate by rotating;

[0013] S2: Subsequently, the meshing disc rotates to drive the meshing rotating toothed disc to rotate, and the scraper blade cooperates with the rotating toothed disc to cut the excess adhesive on the edge of the paint disc first by the elastic scraper blade, and then the cut adhesive is scraped off by the scraper blade. The meshing disc rotates one circle to adjust the rotation of the rotating toothed disc, until the meshing disc rotates four times to make the rotating toothed disc rotate one circle to clean the excess adhesive. In this process, after the positioning rod is stuck by the rubber block and the slot teeth, the meshing disc is continuously rotated, and the positioning rod is deformed by the rubber block and then separated from the slot teeth along with the linkage rod away from the paint disc, and the stretching angle of the paint disc is adjusted by rotating the rotating toothed disc, so that multiple sets of data are stretched and measured at different rotation angles of the paint disc, and the average value is calculated based on the multiple sets of data to eliminate the measurement error;

[0014] S3: Then, the linkage rod is reset and falls into the side groove of the coaxial grooved cylinder under the action of the spring. At this time, the movement of the linkage rod will push the positioning rod close to the edge of the rotating gear plate. At this time, the rubber sheet of the paint plate shovel is compressed and slides along the linkage rod through the connected sleeve and squeezes the spring, so that the positioning rod connected to the linkage rod is engaged with the slot teeth through the rubber block. At this time, the positioning rod is engaged with the slot teeth through the end rubber, which can prevent the paint plate from rotating during the stretching process. The continuous rotation of the engagement plate will cause the side of the coaxial grooved cylinder to squeeze the linkage rod, so that the linkage rod is separated from the coaxial grooved cylinder and contacts the outer wall. At this time, the linkage rod is pushed away from the paint plate. In this process, the engagement plate engages the slot teeth to rotate the rotating gear plate, and the rotating gear plate squeezes the rubber block connected to the positioning rod through the slot teeth, so that the positioning rod is separated from the slot teeth as the linkage rod moves away from the paint plate after the rubber block is deformed, thereby preventing the rotation of the paint plate during the stretching process from affecting the test results.

[0015] S4: After that, the installed paint tray is extended by the hydraulic rod, so that the upper lifting plate tends to move away from the lower fixed plate. At this time, the rotating gear plate connected to the lower fixed plate and the rotating gear plate connected to the upper lifting plate move relative to each other, and the rotating gear plate generates a pulling force on the bonded paint tray. The generated pulling force at this time pulls the pressure sensor through the pressure shaft connected to the rotating gear plate, and the pressure sensor records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by the stretching of the paint tray surface. By measuring the maximum shear force applied before the bonding fails, the shear strength of the bonding can be determined;

[0016] S5: Then, the slide block slides along the slide bar of the slot block and pushes the horizontal rail to move, and then the horizontal rail moves to push the stripping block to apply pressure to the joint of the two paint trays, and the pressure sensor records the pressure change. By applying pressure, the two components are fixed on the tensile testing machine, and a force perpendicular to the bonding interface is applied until the bonding fails. By measuring the maximum peeling force applied before the bonding fails, the peeling strength of the bonding can be determined;

[0017] S6: The hydraulic rod is in an extended state and fully extended after the two paint trays are separated. The hydraulic rod extends through the thin rod to push the inclined slot rod upward, so that the connecting rod connected to the inclined slot rod drives the connected protective baffle to move, and the protective baffle slides along the side of the lower fixed plate through the guide bar, so that the protective baffle quickly blocks the pop-up adhesive fragments upward, thereby improving the safety of the test.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] The present invention is provided with a pressure groove rod, a pressure sliding rod, an upper lifting plate, a guide sliding rod and a lower fixing plate, so that the paint disc is installed on the rotating gear disc, and the positioning strip is aligned with the clamping groove on the rotating gear disc and then inserted, so that the positioning strip is completely immersed in the inner wall of the rotating gear disc, and then the push block is pushed by hand, so that the force disc drives the positioning strip to be clamped on the inner wall of the rotating gear disc, and the first step of fixing is achieved through the mutual cooperation of the structural positioning strip and the clamping groove, and then the positioning strip is clamped by the inner wall of the rotating gear disc through rotation, and the force disc is closely attached to the rotating gear disc, so as to prevent the influence of structural looseness on the test strength. At the same time, the installation process is convenient and quick to install and disassemble through structural clamping, so as to improve the replacement efficiency and reduce the time required for replacement;

[0020] The present invention is provided with a rotating toothed disk, a positioning bar, a force-bearing disk, a paint disk, a push block, and a positioning groove. The rotating toothed disk connected to the lower fixing plate and the rotating toothed disk connected to the upper lifting plate move relative to each other, and the rotating toothed disk generates a pulling force on the bonded paint disk. The pulling force generated at this time pulls the pressure sensor through the pressure-bearing rotating shaft connected to the rotating toothed disk, and the pressure sensor records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by the stretching of the paint disk surface. The shear strength of the bonding can be determined by measuring the maximum shear force applied before the bonding fails.

[0021] The present invention is provided with slot teeth, meshing discs, coaxial grooved cylinders, linkage rods, linkage rod fixing seats, and servo motors. The meshing disc rotates to drive the meshing rotating toothed disc to rotate, and the rubber scraper cooperates with the rotating toothed disc to cut the excess adhesive on the edge of the paint disc through the elastic scraper, and then the rubber scraper is used to scrape off the cut adhesive. The meshing disc rotates one circle to rotate the rotating toothed disc, until the meshing disc rotates four times and the rotating toothed disc rotates one circle to clean the excess adhesive. In this process, the positioning rod is stuck with the slot teeth by the rubber block, so that the meshing disc continues to rotate, and the positioning rod is separated from the slot teeth along with the linkage rod after the rubber block is deformed. After the adhesive evenly applied on the top surface of the paint disc contacts and bonds with another paint disc, the excess adhesive will be squeezed out from the edge of the paint disc, so as to avoid the overflowing adhesive from bonding the edges of the two paint discs and affecting the accuracy of the test strength.

[0022] The present invention is provided with a motor fixing seat, a shovel rubber sheet, an elastic scraper blade and a positioning rod, so that the linkage rod is reset and falls into the side groove of the coaxial groove cylinder under the action of a spring. At this time, the movement of the linkage rod will push the positioning rod to approach the edge of the rotating gear plate. At this time, after the coating plate shovel rubber sheet is compressed, it slides along the linkage rod through the connected sleeve and squeezes the spring, so that the positioning rod connected to the linkage rod is engaged with the locking groove teeth through the rubber block. At this time, the positioning rod is engaged with the locking groove teeth through the end rubber, which can prevent the coating plate from rotating during the stretching process. The continuous rotation of the meshing plate will cause the side surface of the groove of the coaxial groove cylinder to squeeze the linkage rod, so that the linkage rod is separated from the groove of the coaxial groove cylinder and contacts the outer wall. At this time, the linkage rod is pushed away from the coating plate. In this process, the meshing plate meshes with the locking groove teeth to rotate the rotating gear plate, and the rotating gear plate squeezes the rubber block connected to the positioning rod through the locking groove teeth, so that the positioning rod is separated from the locking groove teeth as the linkage rod moves away from the coating plate after being deformed by the rubber block, thereby preventing the coating plate from rotating during the stretching process and affecting the test result, thereby avoiding interference.

[0023] The present invention is provided with a slide bar, a slide block, a slot block slide bar, a slide bar fixing seat, a cross rail, a stripping block, and a wiping block. The slide bar slides along the slot block slide bar and pushes the cross rail to move, and then the cross rail moves to push the stripping block to apply pressure to the joint of the two paint trays, and the pressure sensor records the pressure change. By applying pressure, the two components are fixed on the tensile testing machine, and a force perpendicular to the bonding interface is applied until the bonding fails. By measuring the maximum peeling force applied before the bonding fails, the peeling strength of the bonding can be determined;

[0024] The present invention is provided with a protective baffle, a guide bar, a connecting rod, an inclined groove rod, and a thin rod. At the moment when the paint tray is completely detached, solidified adhesive solid fragments will be ejected. The hydraulic rod is in an extended state and is fully extended after the two paint trays are detached. The hydraulic rod is extended through the thin rod to push the inclined groove rod to move upward, so that the connecting rod connected to the inclined groove rod drives the connected protective baffle to move, and the protective baffle slides along the side of the lower fixed plate through the guide bar, so that the protective baffle quickly blocks the ejected adhesive fragments upward, thereby improving the safety of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the rear-view stereogram of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the strength testing mechanism of the present invention;

[0030] Figure 4 The present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0031] Figure 5 The present invention Figure 3 Schematic diagram of the enlarged structure of C;

[0032] Figure 6 It is a structural schematic diagram of the angle change test mechanism of the present invention;

[0033] Figure 7 The present invention Figure 5 A schematic diagram of the enlarged structure of B;

[0034] Figure 8 It is a structural schematic diagram of the peeling test mechanism of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the chute block of the present invention;

[0036] Fig.10 It is a structural schematic diagram of the protective structure of the present invention;

[0037] In the figure: 1, test bench; 2, support rod; 3, support arm; 4, hydraulic rod; 5, strength test mechanism; 51, pressure groove rod; 52, pressure slide rod; 53, upper lifting plate; 54, guide slide rod; 55, lower fixing plate; 56, rotating gear plate; 57, positioning bar; 58, force plate; 59, coating plate; 510, push block; 511, clamping groove; 6, angle change test mechanism; 61, clamping groove teeth; 62, meshing plate; 63, coaxial groove cylinder; 64, linkage rod; 65, linkage rod fixing seat; 66, Servo motor; 67, motor holder; 68, film scraper; 69, elastic scraper; 610, positioning rod; 611, sleeve; 7, peeling test mechanism; 71, slide rod; 72, slide block; 73, slot block slide rod; 74, slide rod holder; 75, cross rail; 76, stripping block; 77, wiping block; 8, protective structure; 81, protective baffle; 82, guide bar; 83, connecting rod; 84, inclined slot rod; 85, thin rod; 9, pressure shaft; 10, pressure sensor; 11, mounting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-10 One embodiment of the present invention is an adhesive bonding strength testing device and method, comprising a test bench 1, a support rod 2 is fixedly connected to the side of the test bench 1, a support arm 3 is fixedly connected to the top surface of the test bench 1, a hydraulic rod 4 is fixedly connected to the rear side of the support arm 3, a strength testing mechanism 5 is arranged at the top of the hydraulic rod 4, a pressure shaft 9 is arranged on the top surface of the strength testing mechanism 5, a pressure sensor 10 is arranged at the top of the pressure shaft 9, and a mounting plate 11 is arranged on the top side of the pressure sensor 10;

[0040] The strength testing mechanism 5 includes a pressure groove rod 51, a pressure slide rod 52, an upper lifting plate 53, a guide slide rod 54, a lower fixed plate 55, a rotating gear plate 56, a positioning bar 57, a force plate 58, a paint plate 59, a push block 510, and a positioning groove 511. The pressure groove rod 51 is fixedly connected to the top of the hydraulic rod 4, the pressure slide rod 52 slides through the side of the pressure groove rod 51, the lower fixed plate 55 is fixedly connected to the top of the support arm 3, and the guide slide rods 54 are arranged at four places, and the guide slide rods 54 at the four places slide through the top surface of the lower fixed plate 55. The upper lifting plate 53 is fixedly connected to the top of the guide slide rod 54, and the rotating gear plate 56 is fixedly connected to the top of the hydraulic rod 4. The disc 56 is provided with two places, and the two rotating gear discs 56 are rotatably connected to the top surface of the lower fixed plate 55 and the bottom surface of the upper lifting plate 53 respectively. The positioning groove 511 is opened on the side of the rotating gear disc 56, and the positioning bar 57 is slidably connected to the inner wall of the positioning groove 511. The force disc 58 is fixedly connected to the side of the positioning bar 57 away from the rotating gear disc 56. The paint disc 59 is fixedly connected to the side of the force disc 58 away from the positioning bar 57. The push block 510 is fixedly connected to the edge side of the force disc 58. The upper lifting plate 53 is fixedly connected to the compressed sliding rod 52. A spring is provided on the outer side of the bottom end of the guide sliding rod 54, and the two ends of the spring are respectively connected to the guide sliding rod 54. The slide bar 54 is fixedly connected to the lower fixing plate 55, the positioning bar 57 is rotatably connected to the rotating gear disc 56, the force disc 58 is fitted with the top surface of the rotating gear disc 56, and the first step of fixing is achieved by the mutual cooperation of the structural positioning bar 57 and the clamping groove 511, and then the positioning bar 57 is clamped by the inner wall of the rotating gear disc 56 by rotation, and the force disc 58 is close to the rotating gear disc 56 to prevent the loose structure from affecting the test strength. At the same time, the installation process is convenient and quick to install and disassemble through the structural clamping, which improves the replacement efficiency and reduces the time required for replacement. The installed paint disc 59 is extended by the hydraulic rod 4 at this time, so that The upper lifting plate 53 generates a movement tendency away from the lower fixing plate 55 according to the above-mentioned movement process. At this time, the rotating gear plate 56 connected to the lower fixing plate 55 and the rotating gear plate 56 connected to the upper lifting plate 53 move relative to each other, and a pulling force is generated on the bonded paint disc 59 through the rotating gear plate 56. The pulling force generated at this time pulls the pressure sensor 10 through the pressure shaft 9 connected to the rotating gear plate 56, and the pressure sensor 10 records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by stretching the surface of the paint disc 59. The shear strength of the bond can be determined by measuring the maximum shear force applied before the bond fails.

[0041] The right side of the strength testing mechanism 5 is provided with an angle changing testing mechanism 6, which includes a slot tooth 61, an engagement disk 62, a coaxial groove cylinder 63, a linkage rod 64, a linkage rod fixed seat 65, a servo motor 66, a motor fixed seat 67, a shovel rubber sheet 68, an elastic scraper 69, and a positioning rod 610. The slot tooth 61 is fixedly connected to the outer surface of the rotating gear disk 56, the engagement disk 62 is rotatably connected to the top surface of the lower fixed plate 55, the coaxial groove cylinder 63 is fixedly connected to the top surface of the engagement disk 62, the linkage rod fixed seat 65 is arranged on the front side of the engagement disk 62, the linkage rod 64 is slidably connected to the side of the linkage rod fixed seat 65, the motor fixed seat 67 is fixedly connected to the bottom surface of the lower fixed plate 55, the servo motor 66 is fixedly connected to the side of the motor fixed seat 67, and the sleeve 611 is slidably connected to the far side of the linkage rod 64 The top of the connecting rod fixed seat 65 is away from the end of the linkage rod 64, the scraping rubber sheet 68 is slidably connected to the end of the sleeve away from the linkage rod 64, the elastic scraper 69 is fixedly connected to the side of the scraping rubber sheet 68, the positioning rod 610 is fixedly connected to the bottom end of the linkage rod 64, the meshing disk 62 is meshed with the slot teeth 61, the connecting rod fixed seat 65 is fixedly connected to the lower fixed plate 55, the side of the coaxial groove cylinder 63 is provided with a groove, and the groove and the linkage rod 64 are mutually fitted, and the groove on the surface of the coaxial groove cylinder 63 is fan-shaped, the linkage rod 64 passes through one side of the connecting rod fixed seat 65 to the other side, the output shaft of the servo motor 66 is fixedly connected to the axis of the meshing disk 62, the positioning rod 610 is slidably connected to the connecting rod fixed seat 65, the positioning rod 610 and the slot teeth 61 constitute a locking structure, and a spring is provided on the outer side of the linkage rod 64. The two ends of the spring are fixedly connected to the linkage rod 64 and the linkage rod holder 65 respectively, and the end of the positioning rod 610 is fixedly connected with a deformable rubber block. A spring is arranged inside the sleeve 611, and the two ends of the spring are fixedly connected to the shovel rubber piece 68 and the linkage rod 64 respectively. The spring force inside the sleeve 611 is smaller than the spring force outside the linkage rod 64. The stretching angle of the paint tray 59 is adjusted by rotating the rotating gear plate 56, so that multiple sets of data can be stretched and measured for different rotation angles of the paint tray 59, thereby calculating the average value based on the multiple sets of data to eliminate the measurement error. At the same time, as the meshing disk 62 drives the connected coaxial grooved cylinder 63 to rotate, the linkage rod 64 is reset under the action of the spring and falls into the side groove of the coaxial grooved cylinder 63. At this time, the movement of the linkage rod 64 will push the positioning When the rod 610 is close to the edge of the rotating gear plate 56, the shovel rubber sheet 68 of the paint plate 59 is compressed and slides along the linkage rod 64 through the connected sleeve 611 and squeezes the spring, so that the positioning rod 610 connected to the linkage rod 64 is engaged with the slot teeth 61 through the rubber block. At this time, the positioning rod 610 is engaged with the slot teeth 61 through the end rubber, which can prevent the paint plate 59 from rotating during the stretching process. The continuous rotation of the engagement plate 62 will allow the side of the groove of the coaxial groove cylinder 63 to squeeze the linkage rod 64, so that the linkage rod 64 is separated from the groove of the coaxial groove cylinder 63 and contacts the outer wall. At this time, the linkage rod 64 is pushed away from the paint plate 59. In this process, the engagement plate 62 engages with the slot teeth 61 to rotate the rotating gear plate 56, and the rotating gear plate 56 squeezes the rubber block connected to the positioning rod 610 through the slot teeth 61.After the rubber block deforms, the positioning rod 610 is separated from the slot teeth 61 along with the linkage rod 64 away from the paint tray 59, so as to prevent the paint tray 59 from rotating during the stretching process and affecting the test results, and to avoid interference. The function of the sleeve slot teeth 611 is to allow the shovel rubber sheet 68 connected to the sleeve slot teeth 611 to pass through the internal spring of the sleeve slot teeth 611, so that the shovel rubber sheet 68 always fits the paint tray 59, and the linkage rod 64 approaches or moves away from the rotating gear plate 56 to allow the slot teeth 610 connected to the linkage rod 64 to move away from the slot teeth 61 connected to the rotating gear plate 56. When the linkage rod 64 approaches the rotating gear plate 56, the linkage rod 64 squeezes the sleeve slot teeth 611 to allow the shovel rubber sheet 68 to approach the paint tray 59.

[0042] See also Figure 1-9 On the basis of the above embodiment, in another embodiment of the present invention, a peeling test mechanism 7 is provided on the left side of the strength testing mechanism 5, and the peeling test mechanism 7 includes a slide slot rod 71, a slide slot block 72, a slot block slide bar 73, a slide bar fixed seat 74, a cross rail bar 75, a peeling block 76, and a wiping block 77. The slide slot rod 71 is provided at two locations, and the two slide slot rods 71 ​​are fixedly connected to the bottom surface of the upper lifting plate 53, the slide slot block 72 slides between the two slide slot rods 71, the slot block slide bar 73 slides through to the right side of the slide slot block 72, the slide bar fixed seat 74 is fixedly connected to the end of the slot block slide bar 73, the cross rail bar 75 is slidably connected to the right side of the slide slot block 72, the peeling block 76 is slidably connected to the right side of the cross rail bar 75, and the wiping block 77 is fixedly connected Connected to the front side of the stripping block 76, the slide bar holder 74 is fixedly connected to the lower fixed plate 55, a spring is arranged on the outer side of the slot block slide bar 73, and the two ends of the spring are respectively fixedly connected to the slide bar holder 74 and the slot block 72, and the side of the slot block 72 is provided with an inclined slot, and the inclined slot is slidably connected to the bottom end of the slot rod 71, and the wiping block 77 is used to wipe off the scraped adhesive, and slide along the slot block slide bar 73 through the slot block 72 and push the cross rail 75 to move, and then push the stripping block 76 to apply pressure to the joint of the two paint trays 59 through the cross rail 75, and record the pressure change through the pressure sensor 10, and fix the two components on the tensile testing machine by applying pressure, and apply a force perpendicular to the bonding interface until the bonding fails. By measuring the maximum peeling force applied before the bonding fails, the peeling strength of the bonding can be determined.

[0043] The outer side of the strength testing mechanism 5 is provided with a protective structure 8, which includes a protective baffle 81, a guide bar 82, a connecting rod 83, an inclined slot rod 84, and a thin rod 85. The guide bar 82 is slidably connected to the outer surface of the lower fixed plate 55, the protective baffle 81 is fixedly connected to the side of the guide bar 82 away from the lower fixed plate 55, one end of the connecting rod 83 is fixedly connected to the side wall of the protective baffle 81, and the other end of the connecting rod 83 is fixedly connected to the inclined slot rod 84, and the thin rod 85 is fixedly connected to the top side of the hydraulic rod 4. The protective baffle 81 is made of transparent acrylic material. The protective baffle 81 is made of a material, and the protective baffle 81 fits with the lower fixed plate 55. The thin rod 85 is slidably connected to the inclined groove rod 84. The hydraulic rod 4 is in an extended state and is fully extended after the two paint trays 59 are separated. The hydraulic rod 4 extends through the thin rod 85 to push the inclined groove rod 84 to move upward, so that the connecting rod 83 connected to the inclined groove rod 84 drives the connected protective baffle 81 to move, and the protective baffle 81 slides along the side of the lower fixed plate 55 through the guide bar 82, so that the protective baffle 81 quickly blocks the pop-up adhesive fragments upward, thereby improving the safety of the test.

[0044] Working principle: At the beginning of the test, the adhesive is evenly applied to the surface of one of the coating discs 59, and the coating disc 59 at another location is attached to the surface of the coating disc 59 where the adhesive is applied, and the positioning strips 57 connected to the two force discs 58 are kept parallel. After the adhesive is completely solidified, the hydraulic rod 4 is contracted to drive the pressure groove rod 51 to pull the pressure slide bar 52, so that the pressure slide bar 52 is compressed and drives the upper lifting plate 53 to move downward. During the downward movement of the upper lifting plate 53, the connected guide slide bar 54 is pushed close to the lower fixed plate 55. After that, the coating disc 59 is installed on the rotating gear disc 56, and the positioning strip 57 is aligned with the clamping groove 511 on the rotating gear disc 56 and then inserted. After the positioning strip 57 is completely immersed in the inner wall of the rotating gear disc 56, the push block 510 is pushed by hand, so that the force disc 58 drives the positioning strip 57 to be clamped on the inner wall of the rotating gear disc 56. The first step of fixing is achieved through the mutual cooperation of the structural positioning strip 57 and the clamping groove 511, and then the rotation is made to The positioning strip 57 is clamped by the inner wall of the rotating gear disc 56, and the force disc 58 is closely attached to the rotating gear disc 56 to prevent the influence of structural looseness on the test strength. At the same time, the installation process is convenient and quick to install and disassemble through structural clamping, which improves the replacement efficiency and reduces the time required for replacement. The installed paint disc 59 is extended by the hydraulic rod 4 at this time, so that the upper lifting plate 53 generates a movement trend away from the lower fixed plate 55 according to the above movement process. At this time, the rotating gear disc 56 connected to the lower fixed plate 55 and the rotating gear disc 56 connected to the upper lifting plate 53 move relative to each other, and the rotating gear disc 56 generates a pulling force on the bonded paint disc 59. The pulling force generated at this time pulls the pressure sensor 10 through the pressure shaft 9 connected to the rotating gear disc 56, and the pressure sensor 10 records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by the stretching of the paint disc 59 surface. The shear strength of the bonding can be determined by measuring the maximum shear force applied before the bonding fails.

[0045] After the adhesive evenly coated on the top surface of the paint tray 59 contacts and bonds with another paint tray 59, the excess adhesive will be squeezed out from the edge of the paint tray 59. In order to prevent the overflowing adhesive from bonding the edges of the two paint trays 59 and affecting the accuracy of the test strength, the servo motor 66 connected to the motor holder 67 is controlled by the external terminal to operate, so that the output shaft of the servo motor 66 rotates to drive the meshing disk 62 and the coaxial grooved cylinder 63 to rotate. When the linkage rod 64 is not in contact with the groove of the coaxial grooved cylinder 63, the linkage rod 64 moves away from the paint tray 59, and the outer spring of the linkage rod 64 is in a compressed state. The sleeve 611 connected to the linkage rod 64 releases the elastic force inside to push the shovel rubber piece 68 close to the edge of the paint tray 59, and the elastic force released The spring cuts and scrapes off the rubber through the elastic scraper 69 on the scraping rubber sheet 68, and the scraping rubber sheet 68 is subjected to a small force from the solidified adhesive. At this time, the positioning rod 610 connected to the linkage rod 64 moves away from the paint tray 59 along with the linkage rod 64, until the meshing disk 62 rotates four times to make the rotating gear disk 56 rotate one circle to clean up the excess adhesive. In this process, after the positioning rod 610 is stuck by the rubber block and the slot teeth 61, the meshing disk 62 continues to rotate, so that the positioning rod 610 is deformed by the rubber block and moves away from the paint tray 59 along with the linkage rod 64 and disengages from the slot teeth 61. The stretching angle of the paint tray 59 is adjusted by rotating the rotating gear disk 56, so that multiple sets of data can be measured for stretching at different rotation angles of the paint tray 59, thereby measuring the stretching angle according to the multiple sets of data. The data is averaged to eliminate measurement errors. At the same time, as the meshing disk 62 drives the connected coaxial grooved cylinder 63 to rotate, the linkage rod 64 is reset under the action of the spring and falls into the side groove of the coaxial grooved cylinder 63. At this time, the movement of the linkage rod 64 will push the positioning rod 610 close to the edge of the rotating gear disk 56. At this time, the coating plate 59 shovel rubber sheet 68 is compressed and slides along the linkage rod 64 through the connected sleeve 611 and squeezes the spring, so that the positioning rod 610 connected to the linkage rod 64 is engaged with the groove tooth 61 through the rubber block. At this time, the positioning rod 610 is engaged with the groove tooth 61 through the end rubber, which can prevent the coating plate 59 from rotating during the stretching process. The continuous rotation of the meshing disk 62 will cause the side of the groove of the coaxial grooved cylinder 63 to squeeze the linkage rod 64, so that the linkage rod 6 4 is disengaged from the coaxial groove cylinder 63 and contacts the outer wall. At this time, the linkage rod 64 is pushed away from the paint plate 59. In this process, the meshing plate 62 meshes with the groove teeth 61 to rotate the rotating gear plate 56. The rotating gear plate 56 squeezes the rubber block connected to the positioning rod 610 through the groove teeth 61, so that the positioning rod 610 is separated from the groove teeth 61 as the linkage rod 64 moves away from the paint plate 59 after the rubber block is deformed. The function of the sleeve groove teeth 611 is to allow the scraper rubber sheet 68 connected to the sleeve groove teeth 611 to pass through the internal spring of the sleeve groove teeth 611, so that the scraper rubber sheet 68 is always attached to the paint plate 59, and the linkage rod 64 approaches or moves away from the rotating gear plate 56 to make the groove teeth 610 connected to the linkage rod 64 away from the groove teeth 61 connected to the rotating gear plate 56.When the linkage rod 64 approaches the rotating gear plate 56, the linkage rod 64 squeezes the sleeve slot teeth 611 to make the scraper sheet 68 approach the paint plate 59. At this time, the force applied by the scraper sheet 68 to the paint plate 59 is greater than the force applied when the linkage rod 64 is away from the rotating gear plate 56, so that the glue firmly attached to the paint plate 59 can be scraped off;

[0046] When the upper lifting plate 53 and the lower fixing plate 55 move away from each other, the slide groove rod 71 moves upward so that the end thereof slides along the side of the pressure slide rod 52, and the pressure slide rod 52 is guided by the groove block slide rod 73 to approach the paint tray 59. When the shear strength test is completed, the stripping block 76 is pushed to the side of the paint tray 59, so that the upper lifting plate 53 and the lower fixing plate 55 move away from each other, and the slide groove block 72 slides along the groove block slide rod 73 and pushes the cross rail 75 to move, and then the cross rail 75 moves and pushes the stripping block 76 to apply pressure to the joint of the two paint trays 59, and the pressure change is recorded by the pressure sensor 10;

[0047] When the two paint trays 59 are peeled and pressed until the adhesion fails by the peeling block 76, the two paint trays 59 are separated. At the moment when the paint trays 59 are completely separated, the solidified adhesive solid fragments will be ejected. The hydraulic rod 4 is in an extended state and is fully extended after the two paint trays 59 are separated. The hydraulic rod 4 extends through the thin rod 85 to push the inclined groove rod 84 to move upward, so that the connecting rod 83 connected to the inclined groove rod 84 drives the connected protective baffle 81 to move, and the protective baffle 81 slides along the side of the lower fixed plate 55 through the guide bar 82, so that the protective baffle 81 quickly blocks the ejected adhesive fragments upward.

[0048] A testing method for an adhesive bonding strength testing device, comprising:

[0049] S1: When starting the test, install the paint tray 59 on the rotating gear plate 56, align the positioning strip 57 with the clamping groove 511 on the rotating gear plate 56 and insert it, so that the positioning strip 57 is completely immersed in the inner wall of the rotating gear plate 56, and then push the push block 510 by hand, so that the force plate 58 drives the positioning strip 57 to clamp on the inner wall of the rotating gear plate 56, and the first step of fixing is achieved through the mutual cooperation between the structural positioning strip 57 and the clamping groove 511, and then the positioning strip 57 is clamped by the inner wall of the rotating gear plate 56 by rotating;

[0050] S2: Subsequently, the meshing disc 62 rotates to drive the meshing rotating toothed disc 56 to rotate, and the rubber scraper 68 cooperates with the rotating toothed disc 56 to rotate to cut the excess adhesive on the edge of the paint disc 59 through the elastic scraper 69, and then the rubber scraper 68 is used to scrape off the cut adhesive. The meshing disc 62 rotates one circle and the rotating toothed disc 56 rotates 90 degrees, until the meshing disc 62 rotates four circles and the rotating toothed disc 56 rotates one circle to clean up the excess adhesive. In this process, after the positioning rod 610 is stuck by the rubber block and the slot teeth 61, the meshing disc 62 is continuously rotated, and the positioning rod 610 is deformed by the rubber block and then separated from the slot teeth 61 along with the linkage rod 64 away from the paint disc 59, and the stretching angle of the paint disc 59 is adjusted by rotating the rotating toothed disc 56, so that multiple sets of data are stretched and measured at different rotation angles of the paint disc 59, and the average value is calculated based on the multiple sets of data to eliminate the measurement error;

[0051] S3: Then, the linkage rod 64 is reset under the action of the spring and falls into the side groove of the coaxial groove cylinder 63. At this time, the movement of the linkage rod 64 will push the positioning rod 610 close to the edge of the rotating gear plate 56. At this time, the coating plate 59 shovel rubber sheet 68 is compressed and slides along the linkage rod 64 through the connected sleeve 611 and squeezes the spring, so that the positioning rod 610 connected to the linkage rod 64 is engaged with the groove tooth 61 through the rubber block. At this time, the positioning rod 610 is engaged with the groove tooth 61 through the end rubber, which can prevent the coating plate 59 from rotating during the stretching process, and the meshing plate 62 continues to rotate. The movement will cause the groove side of the coaxial groove cylinder 63 to squeeze the linkage rod 64, so that the linkage rod 64 will be separated from the groove of the coaxial groove cylinder 63 and contact the outer wall. At this time, the linkage rod 64 will be pushed away from the paint plate 59. In this process, the engagement plate 62 will engage the groove teeth 61 to rotate the rotating gear plate 56, and the rotating gear plate 56 will squeeze the rubber block connected to the positioning rod 610 through the groove teeth 61, so that the positioning rod 610 will be separated from the groove teeth 61 along with the linkage rod 64 away from the paint plate 59 after the rubber block is deformed, so as to prevent the rotation of the paint plate 59 during the stretching process from affecting the test results.

[0052] S4: After that, the installed paint tray 59 is extended by the hydraulic rod 4, so that the upper lifting plate 53 tends to move away from the lower fixing plate 55. At this time, the rotating gear plate 56 connected to the lower fixing plate 55 and the rotating gear plate 56 connected to the upper lifting plate 53 move relative to each other, and the rotating gear plate 56 generates a pulling force on the bonded paint tray 59. The pulling force generated at this time pulls the pressure sensor 10 through the pressure shaft 9 connected to the rotating gear plate 56, and the pressure sensor 10 records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by the stretching of the paint tray 59 surface. By measuring the maximum shear force applied before the bonding fails, the shear strength of the bonding can be determined;

[0053] S5: Then slide the slot block 72 along the slot block slide bar 73 and push the cross rail 75 to move, and then push the stripping block 76 to apply pressure to the joint of the two paint trays 59 through the cross rail 75, and record the pressure change through the pressure sensor 10, and fix the two components on the tensile testing machine by applying pressure, and apply a force perpendicular to the bonding interface until the bonding fails. By measuring the maximum peeling force applied before the bonding fails, the peeling strength of the bonding can be determined;

[0054] S6: The hydraulic rod 4 is in an extended state and fully extended after the two paint trays 59 are separated. The hydraulic rod 4 extends through the thin rod 85 to push the inclined slot rod 84 to move upward, so that the connecting rod 83 connected to the inclined slot rod 84 drives the connected protective baffle 81 to move, and the protective baffle 81 slides along the side of the lower fixed plate 55 through the guide bar 82, so that the protective baffle 81 quickly blocks the pop-up adhesive fragments upward, thereby improving the safety of the test.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adhesive bonding strength testing device, comprising a test bench (1), characterized in that: The side of the test bench (1) is fixedly connected to a support rod (2), the top surface of the test bench (1) is fixedly connected to a support arm (3), the rear side of the support arm (3) is fixedly connected to a hydraulic rod (4), the top end of the hydraulic rod (4) is provided with a strength testing mechanism (5), the top surface of the strength testing mechanism (5) is provided with a pressure shaft (9), the top end of the pressure shaft (9) is provided with a pressure sensor (10), and the top side of the pressure sensor (10) is provided with a mounting plate (11); The strength testing mechanism (5) includes a pressure groove rod (51), a pressure slide rod (52), an upper lifting plate (53), a guide slide rod (54), a lower fixed plate (55), a rotating gear plate (56), a positioning bar (57), a force plate (58), a coating plate (59), a push block (510), and a positioning groove (511). The pressure groove rod (51) is fixedly connected to the top of the hydraulic rod (4), the pressure slide rod (52) slides through the side of the pressure groove rod (51), the lower fixed plate (55) is fixedly connected to the top of the support arm (3), and the guide slide rod (54) is provided at four locations, and the four guide slide rods (54) all slide through the top surface of the lower fixed plate (55). The upper lifting plate (53) is fixedly connected to the top of the guide slide bar (54), the rotating gear disc (56) is provided at two locations, and the two rotating gear discs (56) are rotatably connected to the top surface of the lower fixed plate (55) and the bottom surface of the upper lifting plate (53), respectively, the positioning groove (511) is opened on the side of the rotating gear disc (56), the positioning bar (57) is slidably connected to the inner wall of the positioning groove (511), the force disc (58) is fixedly connected to the side of the positioning bar (57) away from the rotating gear disc (56), the paint disc (59) is fixedly connected to the side of the force disc (58) away from the positioning bar (57), and the push block (510) is fixedly connected to the edge side of the force disc (58); The upper lifting plate (53) is fixedly connected to the pressure slide bar (52), a spring is provided on the outer side of the bottom end of the guide slide bar (54), and the two ends of the spring are fixedly connected to the guide slide bar (54) and the lower fixed plate (55), respectively, the positioning bar (57) is rotatably connected to the rotating gear disc (56), and the force-bearing disc (58) and the top surface of the rotating gear disc (56) are in contact with each other; The right side of the strength testing mechanism (5) is provided with an angle changing testing mechanism (6), and the angle changing testing mechanism (6) comprises a slotted tooth (61), an engaging disk (62), a coaxial grooved cylinder (63), a linkage rod (64), a link rod fixed seat (65), a servo motor (66), a motor fixed seat (67), a shovel rubber sheet (68), an elastic scraper (69), a positioning rod (610), and a sleeve (611). The slotted tooth (61) is fixedly connected to the outer surface of the rotating toothed disk (56), the engaging disk (62) is rotatably connected to the top surface of the lower fixed plate (55), the coaxial grooved cylinder (63) is fixedly connected to the top surface of the engaging disk (62), and the link rod fixed seat (65) is fixedly connected to the upper surface of the lower fixed plate (55). The seat (65) is arranged on the front side of the engagement disk (62), the linkage rod (64) is slidably connected to the side of the linkage rod fixed seat (65), the motor fixed seat (67) is fixedly connected to the bottom surface of the lower fixed plate (55), the servo motor (66) is fixedly connected to the side of the motor fixed seat (67), the sleeve (611) is slidably connected to the top end of the linkage rod (64) away from the linkage rod fixed seat (65), the scraping piece (68) is slidably connected to the end of the sleeve away from the linkage rod (64), the elastic scraper (69) is fixedly connected to the side of the scraping piece (68), and the positioning rod (610) is fixedly connected to the bottom end of the linkage rod (64); The meshing disc (62) is meshed with the slot teeth (61), the connecting rod holder (65) is fixedly connected to the lower fixing plate (55), a groove is provided on the side of the coaxial groove cylinder (63), and the groove and the linkage rod (64) are fitted with each other, and the groove on the surface of the coaxial groove cylinder (63) is fan-shaped, the linkage rod (64) passes through one side of the connecting rod holder (65) to the other side, the output shaft of the servo motor (66) is fixedly connected to the axis of the meshing disc (62), and the positioning rod (6 10) is slidably connected to the connecting rod holder (65), the locking rod (610) and the locking groove tooth (61) form a locking structure, the outer side of the linkage rod (64) is provided with a spring, and the two ends of the spring are respectively fixedly connected to the linkage rod (64) and the connecting rod holder (65), the end of the locking rod (610) is fixedly connected to a deformable rubber block, the sleeve (611) is provided with a spring inside, and the two ends of the spring are respectively fixedly connected to the shovel rubber piece (68) and the linkage rod (64).

2. The adhesive bonding strength testing device according to claim 1, characterized in that: The left side of the strength testing mechanism (5) is provided with a peeling testing mechanism (7), and the peeling testing mechanism (7) includes a sliding groove rod (71), a sliding groove block (72), a groove block slide rod (73), a slide rod fixed seat (74), a cross rail (75), a peeling block (76), and a wiping block (77). The sliding groove rod (71) is provided at two locations, and the two sliding groove rods (71) are fixedly connected to the bottom surface of the upper lifting plate (53), the sliding groove block (72) slides between the two sliding groove rods (71), the groove block slide rod (73) slides through to the right side of the sliding groove block (72), the slide rod fixed seat (74) is fixedly connected to the end of the groove block slide rod (73), the cross rail (75) is slidably connected to the right side of the sliding groove block (72), the peeling block (76) is slidably connected to the right side of the cross rail (75), and the wiping block (77) is fixedly connected to the front side of the peeling block (76).

3. The adhesive bonding strength testing device according to claim 2, characterized in that: The slide bar fixed seat (74) is fixedly connected to the lower fixed plate (55), a spring is provided on the outer side of the slot block slide bar (73), and the two ends of the spring are respectively fixedly connected to the slide bar fixed seat (74) and the slide block (72), and the side of the slide block (72) is provided with an inclined slide groove, and the inclined slide groove is slidably connected to the bottom end of the slide bar (71).

4. The adhesive bonding strength testing device according to claim 3, characterized in that: The outer side surface of the strength testing mechanism (5) is provided with a protective structure (8), the protective structure (8) comprising a protective baffle (81), a guide bar (82), a connecting rod (83), an inclined slot rod (84), and a thin rod (85), wherein the guide bar (82) is slidably connected to the outer surface of the lower fixed plate (55), the protective baffle (81) is fixedly connected to the side of the guide bar (82) away from the lower fixed plate (55), one end of the connecting rod (83) is fixedly connected to the side wall of the protective baffle (81), and the other end of the connecting rod (83) is fixedly connected to the inclined slot rod (84), and the thin rod (85) is fixedly connected to the top side surface of the hydraulic rod (4).

5. The adhesive bonding strength testing device according to claim 4, characterized in that: The protective baffle (81) is made of a transparent acrylic material. The protective baffle (81) and the lower fixed plate (55) are fitted together, and the thin rod (85) is slidably connected to the inclined slot rod (84).

6. A method for testing adhesive bond strength, using the adhesive bond strength testing device according to claim 5, characterized in that: include: S1: When the test starts, the paint disc (59) is installed on the rotating gear disc (56), and the positioning strip (57) is aligned with the clamping groove (511) on the rotating gear disc (56) and then inserted. After the positioning strip (57) is completely immersed in the inner wall of the rotating gear disc (56), the push block (510) is pushed by hand, so that the force disc (58) drives the positioning strip (57) to be clamped on the inner wall of the rotating gear disc (56). The first step of fixing is achieved by the mutual cooperation between the structural positioning strip (57) and the clamping groove (511), and then the positioning strip (57) is clamped by the inner wall of the rotating gear disc (56) by rotating; S2: Subsequently, the meshing disc (62) rotates to drive the meshing rotating toothed disc (56) to rotate, and the scraping film (68) cooperates with the rotating toothed disc (56) to rotate to cut the excess adhesive on the edge of the coating disc (59) through the elastic scraper (69), and then the scraping film (68) is used to scrape off the cut adhesive. The meshing disc (62) rotates one circle and the rotating toothed disc (56) rotates 90 degrees. Until the meshing disc (62) rotates four times and the rotating toothed disc (56) rotates one circle to clean up the excess adhesive, During the process, after the positioning rod (610) is locked by the rubber block and the slot teeth (61), the meshing disc (62) is continuously rotated, so that the positioning rod (610) is deformed by the rubber block and moves away from the coating disc (59) along with the linkage rod (64) and is disengaged from the slot teeth (61). The angle of stretching of the coating disc (59) is adjusted by rotating the rotating gear disc (56), so that multiple sets of stretching data are measured for different rotation angles of the coating disc (59), and an average value is calculated based on the multiple sets of data to eliminate measurement errors. S3: Then, the linkage rod (64) is reset under the action of the spring and falls into the side groove of the coaxial groove cylinder (63). At this time, the movement of the linkage rod (64) pushes the positioning rod (610) close to the edge of the rotating gear plate (56). At this time, the shovel rubber sheet (68) attached to the paint plate (59) is pressed and slides along the linkage rod (64) and squeezes the spring, so that the positioning rod (610) connected to the linkage rod (64) fits with the groove teeth (61) through the rubber block, thereby preventing the paint plate (59) from rotating during the stretching process and affecting the test results; S4: Afterwards, the installed paint tray (59) is extended by the hydraulic rod (4) to make the upper lifting plate (53) move away from the lower fixed plate (55). At this time, the gear plate (56) connected to the lower fixed plate (55) and the gear plate (56) connected to the upper lifting plate (53) move relative to each other, and the gear plate (56) generates a pulling force on the bonded paint tray (59). The pulling force generated at this time pulls the pressure sensor (10) through the pressure shaft (9) connected to the gear plate (56), and the pressure sensor (10) records the pressure data to the external terminal. The shear force applied by the two bonding components at a specific rate is measured by the stretching of the paint tray (59). By measuring the maximum shear force applied before the bonding fails, the shear strength of the bonding can be determined. S5: The pressure slide bar (52) slides along the groove block slide bar (73) and pushes the cross rail (75) to move, and then the cross rail (75) moves to push the peeling block (76) to apply pressure to the joint of the two coating trays (59), and the pressure sensor (10) records the pressure change. By applying pressure, the two components are fixed on the tensile testing machine, and a force perpendicular to the bonding interface is applied until the bonding fails. By measuring the maximum peeling force applied before the bonding fails, the peeling strength of the bonding can be determined; S6: The hydraulic rod (4) is in an extended state and fully extended after the two paint trays (59) are separated. The hydraulic rod (4) extends through the thin rod (85) to push the inclined groove rod (84) to move upward, so that the connecting rod (83) connected to the inclined groove rod (84) drives the connected protective baffle (81) to move, allowing the protective baffle (81) to slide along the side of the lower fixed plate (55) through the guide bar (82), allowing the protective baffle (81) to quickly block the pop-up adhesive fragments upward, thereby improving the safety of the test.

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