CN106053340A - Bonding strength testing device - Google Patents
Bonding strength testing device Download PDFInfo
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- CN106053340A CN106053340A CN201610561964.2A CN201610561964A CN106053340A CN 106053340 A CN106053340 A CN 106053340A CN 201610561964 A CN201610561964 A CN 201610561964A CN 106053340 A CN106053340 A CN 106053340A
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- 238000012360 testing method Methods 0.000 title claims abstract description 105
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 66
- 230000005540 biological transmission Effects 0.000 claims description 32
- 239000011247 coating layer Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 22
- 238000007747 plating Methods 0.000 description 9
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013077 scoring method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a bonding strength testing device. The bonding strength testing device comprises a body, a load driving mechanism, a supporting mechanism and a testing module, wherein the load driving mechanism, the supporting mechanism and the testing module are arranged on the body; the supporting mechanism comprises a working table and a clamp; a sample is placed on the working table; the clamp is matched with the clamping table and clamps the sample; the clamp is detachably connected with the working table fixedly; the load driving mechanism is positioned above the working table and comprises a loading assembly and a driving structure; the loading assembly can apply load to the sample; the driving structure drives the loading assembly to apply load to the sample; a through hole is formed in the clamp; a loading end of the loading assembly passes through the through hole; the testing module comprises a force sensor and a processing unit which are in signal connection with each other; the force sensor is used for detecting the loading force of the loading assembly; the processing unit is used for quantitatively acquiring bonding strength between a coated layer and a substrate in the sample according to detection data of the force sensor. The bonding strength testing device is relatively simple in structure and relatively low in cost, and the testing cost of the bonding strength is reduced effectively.
Description
Technical Field
The invention relates to the technical field of bonding strength testing, in particular to a bonding strength testing device.
Background
The coating has the performances of oxidation resistance, wear resistance, corrosion resistance and the like, and is widely applied to various industrial fields. The bonding strength of the substrate and the coating is an important index for representing the quality of the coating, and directly influences the safe use and the service life of the material.
At present, the bonding strength between the coating and the substrate is evaluated qualitatively and quantitatively. There are various methods for quantitative evaluation, for example, a laser scoring method, a laser interference indentation method, and a vertical stretching method. The laser scratching method adopts laser as a scratching light source, utilizes the thermal effect of the laser to realize the denudation of a coating layer, and calculates the bonding strength through a mathematical model; the laser interference press-in method applies pressure to the coating layer to change the height of the coating layer, obtains the height change of the coating layer by applying laser interference, and calculates the bonding strength by a mathematical model; the theoretical calculation of the vertical stretching method is simple, the bonding strength sigma of the coating and the substrate is F/A, and the influence of other factors is small, so that the method is a common test method
However, the laser scratch method and the laser interference pressing method have expensive required equipment and complicated operation; the vertical stretching method needs to design a sample clamp and measures by means of a tensile testing machine, the tensile testing machine is expensive in equipment, and the sample clamp is difficult to machine due to the fact that the shape of a sample is complex. Therefore, the equipment cost required for testing the bonding strength is high, resulting in high testing cost of the bonding strength.
In addition, in the vertical drawing method, the sample holder is applicable to a thick plating layer, and cannot be applied to a plating layer having a small thickness, for example, a plating layer of 1mm or less; the tensile testing machine is large in size and not easy to move, and inconvenience is brought to the testing of the bonding strength.
In summary, how to provide a bonding strength testing apparatus to reduce the testing cost of the bonding strength is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a bonding strength testing device to reduce the testing cost of the bonding strength.
In order to achieve the above purpose, the invention provides the following technical scheme:
a bonding strength testing apparatus comprising: the testing device comprises a machine body, a load driving mechanism, a supporting mechanism and a testing module, wherein the load driving mechanism, the supporting mechanism and the testing module are all arranged on the machine body; wherein,
the support mechanism includes: the device comprises a workbench for placing a sample, and a clamp matched with the workbench for clamping the sample; the clamp is detachably and fixedly connected with the workbench, and the load driving mechanism is positioned above the workbench;
the load drive mechanism includes: the loading assembly can load the sample, and the driving structure drives the loading assembly to load the sample; the clamp is provided with a through hole for the loading end of the loading assembly to pass through;
the test module includes: the loading assembly comprises a force sensor and a processing unit which are connected through signals, the force sensor is used for detecting the loading force of the loading assembly, and the processing unit is used for quantitatively obtaining the bonding strength of the coating layer and the base body in the sample according to detection data of the force sensor.
Preferably, the driving structure includes: the loading assembly comprises a transmission mechanism and a driving part, wherein the driving part is connected with the loading assembly through the transmission mechanism.
Preferably, the driving part is a motor; the transmission mechanism includes: the first gear is connected with an output shaft of the motor, the second gear is meshed with the first gear, the transmission shaft is in transmission connection with the second gear, the first bearing is installed on the machine body and can bear radial load and axial load, the first nut is fixed on the machine body, and the first lead screw is in threaded fit with the first nut;
the first lead screw is connected with the loading assembly, the transmission shaft is in rotating fit with the first bearing, and the transmission shaft is provided with a yielding structure for the first lead screw to move.
Preferably, the loading assembly comprises: the second bearing is in rotating fit with the first lead screw, the tension and compression rod is fixedly connected with the first lead screw through the force sensor, and the loading block is fixedly connected with the tension and compression rod; wherein the second bearing is capable of bearing axial loads.
Preferably, the loading block is coated with a glue layer for adhering the coating layer, and the loading block is detachably and fixedly connected with the tension rod.
Preferably, the force sensor is a tension and compression sensor, the first bearing is a deep groove ball bearing, and the second bearing is a thrust ball bearing.
Preferably, the first gear and the second gear are both bevel gears, and the axis of the output shaft of the motor is perpendicular to the axis of the transmission shaft.
Preferably, the support mechanism further comprises: and the supporting driving mechanism is connected with the workbench and drives the workbench to lift.
Preferably, the support driving mechanism includes: the handle is fixedly connected with the second lead screw; one end of the second lead screw is rotatably arranged on the machine body, and the other end of the second lead screw is fixedly connected with the workbench.
Preferably, the jig comprises: the clamping plate is detachably and fixedly connected with the threaded connecting piece of the workbench; wherein, the through-hole is located splint. Preferably, the test module further comprises: and the acoustic emission probe is fixed on the workbench and is used for detecting the sample, and the acoustic emission probe is in signal connection with the processing unit.
Preferably, the test module further comprises: and the touch screen is arranged on the panel of the machine body, is in signal connection with the processing unit and is provided with an operation button and a display screen.
Preferably, the test module is provided with a computer connection port, and the processing unit is in signal connection with the computer connection port.
Preferably, the test module further comprises: and the control unit is in signal connection with the processing unit and controls the operation of the driving structure.
Preferably, the bonding strength testing device further comprises a power box for supplying power to the driving structure and the testing module, and the power box is arranged on the machine body.
Preferably, the power box and the load driving mechanism are located inside the machine body, the machine body is provided with an operation opening, and the loading end of the loading assembly, the workbench and the clamp are located in the operation opening.
The use method of the bonding strength testing device provided by the invention comprises the following steps: placing a sample on a workbench, clamping the sample by using a clamp, coating a glue layer on a loading end of a loading assembly or a coating layer of the sample, starting a driving structure, driving the loading assembly to move towards the sample by using the driving structure, enabling the loading end of the loading assembly and the sample to pass through glue of the glue layer after the loading end of the loading assembly is contacted with the sample, driving the loading assembly to move towards a direction away from the workbench by using the driving structure, starting to load the sample, exerting tension on the sample due to the clamping of the sample by using the clamp, detecting the tension on the sample by using a force sensor, stopping driving the driving structure after the coating layer is separated from a substrate, and obtaining the bonding strength of the coating layer and the substrate by using a processing unit according to data detected by the force sensor; when the glue layer is damaged and the coating layer is not separated from the matrix, the driving of the driving structure is stopped, the processing unit obtains a reference value according to data detected by the force sensor, the bonding strength of the coating layer and the matrix is larger than the reference value, the replaceable glue layer is tested again, and therefore the processing unit can quantitatively obtain the bonding strength of the coating layer and the matrix no matter what the test result is.
The bonding strength testing device provided by the invention has a simpler structure, and has lower cost compared with the equipment required by the laser scratch method, the laser interference press-in method and the vertical stretching method in the prior art, so that the testing cost of the bonding strength is effectively reduced.
Meanwhile, the bonding strength testing device provided by the invention is miniaturized, convenient to move and low in requirement on testing environment, and is more suitable for testing the bonding strength of a coating layer and a substrate in a factory.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bonding strength testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a sample installed in the bonding strength testing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a testing module in the bonding strength testing apparatus according to the embodiment of the present invention.
In the above FIGS. 1-2:
the device comprises a machine body 1, an operation port 11, a power supply box 2, a load driving mechanism 3, a driving part 31, a transmission mechanism 32, a first gear 321, a second gear 322, a transmission shaft 323, a first bearing 324, a first nut 325, a first lead screw 326, a loading assembly 33, a second bearing 331, a tension and compression rod 332, a loading block 333, a supporting mechanism 4, a workbench 41, a handle 42, a second nut 43, a second lead screw 44, a clamp 45, a test module 5, a touch screen 51, a force sensor 52, an acoustic emission probe 53, a base 6, a glue layer 7 and a coating layer 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the bonding strength testing apparatus provided by the embodiment of the present invention includes: the test device comprises a machine body 1, a load driving mechanism 3, a supporting mechanism 4 and a test module 5 which are all arranged on the machine body 1.
Wherein, the above-mentioned supporting mechanism 4 includes: a worktable 41 for placing a sample, a clamp 45 for clamping the sample in cooperation with the worktable 41; the jig 45 is detachably fixed to the table 41, and the load driving mechanism 3 is located above the table 41. The upper side of the table 41 means the upper side of the table 41 in the normal state of the bonding strength testing apparatus.
The load drive mechanism 3 includes: a loading unit 33 capable of loading a sample, and a driving mechanism for driving the loading unit 33 to load the sample; the clamp 45 has a through hole for the loading end of the loading assembly 33 to pass through.
The test module 5 includes: the force sensor 52 is used for detecting the loading force of the loading assembly 33, and the processing unit is used for quantitatively obtaining the bonding strength of the coating layer 8 in the sample and the substrate 6 according to the detection data of the force sensor 52.
It should be noted that the driving structure drives the loading assembly 33 to load the sample, and specifically, the driving structure drives the loading assembly 33 to apply a tensile load and/or a compressive load to the sample, which is specifically designed according to actual needs.
The use method of the bonding strength testing device provided by the embodiment of the invention comprises the following steps: placing a sample on a workbench 41, clamping the sample by using a clamp 45, coating a glue layer 7 on a loading end of a loading assembly 33 and/or a coating layer 8 of the sample, starting a driving structure, driving the loading assembly 33 to move towards the sample by using the driving structure, allowing the loading end of the loading assembly 33 and the sample to pass through glue layers 7 after the loading end of the loading assembly 33 is contacted with the sample, driving the loading assembly 33 to move towards a direction far away from the workbench 41 by using the driving structure, starting to load the sample, applying a tensile force to the sample due to the clamping of the sample by the clamp 45, detecting the tensile force applied to the sample by using a force sensor 52, stopping the driving of the driving structure after the coating layer 8 is separated from a base body 6, and obtaining the bonding strength of the coating layer 8 and the base body 6 by using a processing unit according to the data detected by; when the adhesive layer 7 is damaged and the coating layer 8 is not separated from the substrate 6, the driving of the driving structure is stopped, the processing unit obtains a reference value according to the data detected by the force sensor 52, the bonding strength of the coating layer 8 and the substrate 6 is larger than the reference value, the replaceable adhesive layer 7 is tested again, and therefore the processing unit can quantitatively obtain the bonding strength of the coating layer 8 and the substrate 6 no matter what the test result is.
It should be noted that the processing unit calculates according to the formula σ ═ F/a, where σ is the bonding strength or reference value of the plating layer 8 and the substrate 6, F is the tensile force detected by the force sensor 52 when the plating layer 8 is detached from the substrate 6, and a is the loading area of the loading assembly 33. Of course, the bonding strength testing apparatus provided in the embodiment of the present invention may also use a press-in method for testing, specifically, when the bonding strength of the plating layer 8 and the substrate 6 is greater than the bonding strength of the adhesive layer 7, the press-in method is used for testing, the sample is placed on the table 41, the clamp 45 is used to clamp the sample, the driving structure is started, the driving structure drives the loading assembly 33 to move towards the sample, after the loading end of the loading assembly 33 contacts with the sample, the sample starts to be loaded, at this time, the pressure applied to the sample is applied, the force sensor 52 detects the pressure applied to the sample, when the plating layer 8 is damaged, the driving structure is stopped to drive, and the processing unit obtains the bonding strength of the plating layer 8 and the substrate 6 according to the data detected by the force sensor 52, that is, the processing unit quantitatively obtains the bonding strength of the plating layer. The method for processing data by the processing unit when the push test is used is well known to those skilled in the art and will not be described herein.
The bonding strength testing device provided by the embodiment of the invention has a simpler structure, and has lower cost compared with the equipment required by the laser scratch method, the laser interference press-in method and the vertical stretching method in the prior art, thereby effectively reducing the testing cost of the bonding strength.
Meanwhile, the bonding strength testing device provided by the embodiment of the invention is miniaturized, convenient to move and low in requirement on testing environment, and is more suitable for testing the bonding strength of the coating layer 8 and the substrate 6 in a factory.
In the bonding strength testing device, the driving structure cylinder can be selected, and other structures can be selected. To facilitate loading of the drive loading assembly 33, the drive structure includes: a transmission mechanism 32 and a driving part 31, wherein the driving part 31 is connected with a loading assembly 33 through the transmission mechanism 32. The transmission mechanism 32 may be a rack and pinion mechanism, a lead screw mechanism, or the like.
Further, the driving member 31 is a motor; the transmission mechanism 32 includes: a first gear 321 connected with an output shaft of the motor, a second gear 322 engaged with the first gear 321, a transmission shaft 323 in transmission connection with the second gear 322, a first bearing 324 mounted on the machine body 1 and capable of bearing radial load and axial load, a first nut 325 fixed on the machine body 1, and a first lead screw 326 in threaded fit with the first nut 325; the first lead screw 326 is connected to the loading assembly 33, the transmission shaft 323 and the first lead screw 326 are both rotatably engaged with the first bearing 324, and the transmission shaft 323 has a yielding structure for the first lead screw 326 to move.
It should be noted that the first bearing 324 can bear radial load and axial load, wherein the radial load refers to the load along the radial direction of the first bearing 324, and the axial load refers to the load along the axial direction of the first bearing 324. As the motor rotates, the first gear 321, the second gear 322 and the transmission shaft 323 rotate, the transmission shaft 323 transmits the rotation to the first lead screw 326 through the first bearing 324, and since the first nut 325 is fixed, the first lead screw 326 moves along the axial direction thereof, and when the first lead screw 326 moves toward the transmission shaft 323, the yielding structure provides a moving space for the first lead screw 326.
The bonding strength testing device adopts the gear transmission mechanism and the lead screw mechanism, so that the transmission precision is improved, and the accuracy of a testing result is improved; in addition, the use of a highly accurate force sensor 52 may further improve the accuracy of the test results.
Preferably, the loading assembly 33 includes: a second bearing 331 rotationally engaged with the first lead screw 326, a tension and compression rod 332 fixedly connected with the first lead screw 326 through the force sensor 52, and a loading block 333 fixedly connected with the tension and compression rod 332; wherein the second bearing 331 is capable of bearing axial loads. It is understood that the second bearing 331 can bear a load in its axial direction.
The structure of the loading assembly 33 facilitates the force sensor 52 to detect the force value, and meanwhile, the tension and compression rod 332 with high rigidity is selected to transmit force, so that the accuracy of the test result can be improved.
For convenience of use, the loading block 333 is coated with the adhesive layer 7 for adhering the coating layer 8, and the loading block 333 is detachably and fixedly connected with the tension/compression bar 332. Therefore, the use is convenient, the glue layer 7 does not need to be coated additionally, and the testing time is saved. Specifically, the loading block 333 and the tension/compression rod 332 are fixedly connected in a detachable manner by a screw-thread fit or a snap-fit structure.
Further, the force sensor 52 is a tension/compression sensor, the first bearing 324 is a deep groove ball bearing, and the second bearing 331 is a thrust ball bearing. Of course, the force sensor 52 may alternatively be other types of sensors, and the first bearing 324 and the second bearing 331 may also be other types of bearings, and is not limited thereto.
In order to reduce the height of the whole bonding strength testing device and facilitate movement, the first gear 321 and the second gear 322 are both bevel gears, and the axis of the output shaft of the motor is perpendicular to the axis of the transmission shaft 323. Of course, the first gear 321 and the second gear 322 may be selected to be other types of gears without considering the height of the device, and are not limited thereto.
For the convenience of use and the improvement of usability, the support mechanism 4 further includes: and a support driving mechanism which is connected with the working table 41 and drives the working table 41 to ascend and descend. Thus, the height of the worktable 41 can be adjusted by the supporting and driving mechanism, which is convenient for use.
Specifically, the support driving mechanism may be a separate driving member, or may be an assembly, for example, the support driving mechanism is a linear motor or an air cylinder. In order to reduce weight and cost, the support driving mechanism comprises: a second nut 43 fixed on the machine body 1, a second lead screw 44 in threaded fit with the second nut 43, and a handle 42 fixedly connected with the second lead screw 44; one end of the second lead screw 44 is rotatably disposed on the machine body 1, and the other end of the second lead screw 44 is fixedly connected to the working table 41.
The supporting driving mechanism can realize the lifting of the workbench 41 by rotating the handle 42, is convenient to use, and has a simple structure and low cost.
Preferably, the above-mentioned jig 45 includes: a clamp plate detachably fixedly connecting the clamp plate to the screw connector of the table 41; wherein, the through-hole is arranged on the clamping plate. Therefore, the limiting effect of the clamp 45 on the shape of the sample is reduced, the processing of the sample is facilitated, meanwhile, the limiting effect on the thickness of the coating layer 8 is also reduced, and the sample with the small thickness of the coating layer 8, particularly the sample with the coating layer 8 below 1mm, can be clamped.
Further, the threaded connecting piece is a bolt or a screw and a nut.
In order to facilitate the processing unit to accurately obtain the force value, the testing module 5 further includes: and an acoustic emission probe 53 fixed to the table 41 and detecting the sample, wherein the acoustic emission probe 53 is in signal connection with the processing unit.
The test module 5 utilizes the acoustic emission probe 53 to test, so that the accuracy of a test result is effectively improved; meanwhile, more complex data analysis is facilitated, and test performance is improved.
For convenience of operation and learning of test data, the test module 5 further includes: and the touch screen 51 is arranged on the panel of the machine body 1, the touch screen 51 is in signal connection with the processing unit, and the touch screen 51 is provided with operation buttons and a display screen.
It should be noted that the display screen is used for displaying data collected by other sensors such as the force sensor 52 and the like in the test process and data processed by the processing unit. The display form of the data may be displayed in a digital manner or a graph manner, which is not limited in the embodiment of the present invention. The operation buttons may be designed according to actual needs, for example, a selection button, a determination button, a start button, and the like, which are not limited in the embodiments of the present invention.
In order to improve the usability, the test module 5 is provided with a computer connection port, and the processing unit is in signal connection with the computer connection port. Therefore, test data can be exported through the computer connecting port, so that the storage and the export are facilitated, and the service performance is improved; meanwhile, related software is matched, so that testers can deeply research the interface bonding performance of the coating layer 8 and the substrate 6.
In order to improve automation, the test module 5 further includes: and the control unit is in signal connection with the processing unit and controls the operation of the driving structure.
In particular, the control unit may also control the data acquisition of the force sensor 52 and acoustic emission probe 53, as well as other actions.
Preferably, the bonding strength testing device further comprises a power box 2 for supplying power to the driving structure and the testing module 5, and the power box 2 is arranged on the machine body 1. It should be noted that the driving member of the driving structure should be an electric driving member.
In order to protect the components and improve the appearance, the power box 2 and the load driving mechanism 3 are both located inside the machine body 1, the machine body 1 is provided with an operation opening 11, and the loading end of the loading assembly 33, the workbench 41 and the clamp 45 are all located in the operation opening 11.
In the above bonding strength testing apparatus, the processing unit includes, for the test module 5: the device comprises an amplifying circuit, an A/D conversion circuit, a central processing unit and a display circuit; the detection data of the force sensor 52 and the acoustic emission probe 53 are amplified by the amplifying circuit and converted by the a/D conversion circuit, the converted data are obtained by the cpu and processed to obtain a test result, and the test result is displayed on the display screen of the touch screen 51 through the display circuit. The control unit is a control circuit, the control circuit is in signal connection with the central processing unit, and the computer connection port is in signal connection with the central processing unit, as shown in fig. 3.
In order to guarantee the service life, the processing unit is packaged in the machine body 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (16)
1. A bonding strength testing apparatus, comprising: the device comprises a machine body (1), a load driving mechanism (3), a supporting mechanism (4) and a testing module (5), wherein the load driving mechanism, the supporting mechanism and the testing module are all arranged on the machine body (1); wherein,
the support mechanism (4) comprises: a workbench (41) for placing a sample, and a clamp (45) for clamping the sample in cooperation with the workbench (41); the clamp (45) is detachably and fixedly connected with the workbench (41), and the load driving mechanism (3) is positioned above the workbench (41);
the load drive mechanism (3) includes: a loading assembly (33) capable of loading the sample, a driving structure for driving the loading assembly (33) to load the sample; the clamp (45) is provided with a through hole for the loading end of the loading assembly (33) to pass through;
the test module (5) comprises: the force sensor (52) is used for detecting the loading force of the loading assembly (33), and the processing unit is used for quantitatively obtaining the bonding strength of the coating (8) and the substrate (6) in the sample according to the detection data of the force sensor (52).
2. The bonding strength testing device according to claim 1, wherein the driving structure comprises: a transmission mechanism (32) and a driving part (31), wherein the driving part (31) is connected with the loading assembly (33) through the transmission mechanism (32).
3. The bonding strength testing device according to claim 2, wherein the driving member (31) is a motor; the transmission mechanism (32) includes: the motor comprises a first gear (321) connected with an output shaft of the motor, a second gear (322) meshed with the first gear (321), a transmission shaft (323) in transmission connection with the second gear (322), a first bearing (324) which is installed on the machine body (1) and can bear radial load and axial load, a first nut (325) fixed on the machine body (1), and a first lead screw (326) in threaded fit with the first nut (325);
wherein, first lead screw (326) with loading subassembly (33) link to each other, transmission shaft (323) with first lead screw (326) all with first bearing (324) normal running fit, transmission shaft (323) have the confession first lead screw (326) move the structure of stepping down.
4. The bonding strength testing device according to claim 3, wherein the loading assembly (33) comprises: the second bearing (331) is in rotating fit with the first lead screw (326), the tension and compression rod (332) is fixedly connected with the first lead screw (326) through the force sensor (52), and the loading block (333) is fixedly connected with the tension and compression rod (332); wherein the second bearing (331) is capable of bearing axial loads.
5. The bonding strength testing device according to claim 4, wherein the loading block (333) is coated with a glue layer (7) for adhering the coating layer (8), and the loading block (333) is detachably and fixedly connected with the tension/compression bar (332).
6. The bonding strength testing device according to claim 4, wherein the force sensor (52) is a tension-compression sensor, the first bearing (324) is a deep groove ball bearing, and the second bearing (331) is a thrust ball bearing.
7. The bonding strength testing device according to claim 3, wherein the first gear (321) and the second gear (322) are both bevel gears, and an output shaft axis of the motor is perpendicular to an axis of the transmission shaft (323).
8. The bonding strength testing device according to claim 1, wherein the supporting mechanism (4) further comprises: and the supporting and driving mechanism is connected with the workbench (41) and drives the workbench (41) to lift.
9. The bonding strength testing device according to claim 8, wherein the support driving mechanism comprises: the second nut (43) is fixed on the machine body (1), the second lead screw (44) is in threaded fit with the second nut (43), and the handle (42) is fixedly connected with the second lead screw (44); one end of the second lead screw (44) is rotatably arranged on the machine body (1), and the other end of the second lead screw (44) is fixedly connected with the workbench (41).
10. The bonding strength testing device according to claim 1, wherein the jig (45) comprises: a clamping plate, a threaded connecting piece detachably and fixedly connecting the clamping plate and the workbench (41); wherein, the through-hole is located splint.
11. The bonding strength testing device according to claim 1, wherein the testing module (5) further comprises: and the acoustic emission probe (53) is fixed on the workbench (41) and is used for detecting the sample, and the acoustic emission probe (53) is in signal connection with the processing unit.
12. The bonding strength testing device according to claim 1, wherein the testing module (5) further comprises: locate touch-sensitive screen (51) on the panel of organism (1), touch-sensitive screen (51) with processing unit signal connection, just touch-sensitive screen (51) are equipped with operating button and display screen.
13. The bonding strength testing device according to claim 1, wherein the testing module (5) is provided with a computer connection port, the processing unit being in signal connection with the computer connection port.
14. The bonding strength testing device according to claim 1, wherein the testing module (5) further comprises: and the control unit is in signal connection with the processing unit and controls the operation of the driving structure.
15. The bonding strength testing device according to any one of claims 1 to 14, further comprising a power box (2) for supplying power to the driving structure and the testing module (5), wherein the power box (2) is provided on the machine body (1).
16. The bonding strength testing device according to claim 15, wherein the power box (2) and the load driving mechanism (3) are located inside the machine body (1), the machine body (1) has an operation opening (11), and the loading end of the loading assembly (33), the workbench (41) and the clamp (45) are located in the operation opening (11).
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| CN201610561964.2A CN106053340A (en) | 2016-07-14 | 2016-07-14 | Bonding strength testing device |
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| CN201610561964.2A CN106053340A (en) | 2016-07-14 | 2016-07-14 | Bonding strength testing device |
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| CN106053340A true CN106053340A (en) | 2016-10-26 |
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| CN108956448A (en) * | 2018-05-28 | 2018-12-07 | 奇瑞汽车股份有限公司 | Automobile sealing strip sliding resistance detector and using method thereof |
| CN108982238A (en) * | 2018-08-02 | 2018-12-11 | 宁国市中英橡胶有限公司 | A kind of drawing high/low temperature ageing oven |
| CN109374524A (en) * | 2018-12-20 | 2019-02-22 | 浙江工业大学 | A film and substrate bonding force stepping motor driven telescopic link transmission device |
| CN109406394A (en) * | 2018-12-20 | 2019-03-01 | 浙江工业大学 | A kind of film and basal body binding force stepper motor drive gear drive measuring device |
| CN109406395A (en) * | 2018-12-20 | 2019-03-01 | 浙江工业大学 | A kind of film and basal body binding force stepper motor drive steel wire drive measuring device |
| CN110850806A (en) * | 2019-12-30 | 2020-02-28 | 郑州机械研究所有限公司 | Automatic shifting and inserting transmission device |
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Application publication date: 20161026 |