CN210571792U - Sample bearing assembly for impact test and adhesive splitting impact testing machine - Google Patents
Sample bearing assembly for impact test and adhesive splitting impact testing machine Download PDFInfo
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- CN210571792U CN210571792U CN201921135457.8U CN201921135457U CN210571792U CN 210571792 U CN210571792 U CN 210571792U CN 201921135457 U CN201921135457 U CN 201921135457U CN 210571792 U CN210571792 U CN 210571792U
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Abstract
The utility model provides a sample carrier assembly and adhesive splitting impact tester for impact test, wherein a sample carrier assembly for impact test includes the support, draws and dashes sensor and wedge hammer, and the upper end of support is equipped with the cantilever, draws and dashes the sensor and connects downwards at the front end of cantilever, draws the lower extreme of dashing the sensor vertical downwards in order to be used for with treat that impact test's sample is connected, the upper portion of wedge hammer is equipped with the cutting edge, the cutting edge be used for with the wedge hammer is hung and is linked on the sample, and the cutting part of cutting edge is just to the viscose bonding part of sample downwards to make the wedge hammer when receiving vertical decurrent impact force and drive the viscose bonding part of cutting edge splitting sample downwards. The utility model discloses adhesive splitting impact tester is equipped with high low temperature environment case, can realize high low temperature test, and impact test goes on at high low temperature environment incasement, need not move the sample, has guaranteed the accuracy of test result under the high low temperature environment, and sample and wedge hammer are all unsettled, can be so that the test result error is littleer, and the measuring accuracy is higher.
Description
Technical Field
The utility model relates to a testing machine field, concretely relates to a sample carrier assembly and adhesive splitting impact tester for impact test to carry out splitting impact test to the intensity of the used viscose agent of trades such as automobile manufacturing, engineering, building, electron.
Background
The adhesive splitting strength test refers to a splitting strength test for measuring metal-to-metal bonding of an adhesive at room temperature, and currently, the adopted testing machines are a pendulum sample bearing assembly for an impact test and an adhesive splitting impact testing machine which are mentioned in ISO11343 determination wedge impact method for measuring dynamic splitting strength of high-strength adhesive under impact condition, as shown in a schematic diagram of the pendulum adhesive splitting impact test shown in FIG. 1, the testing machine mainly comprises: pendulum 1, bolt 2 for sample fixing, sliding unit 3 for setting initial pendulum height, clamping plate 4, sample 5, spacer 6, wedge 7, sensor 8.
The pendulum-type sample bearing assembly for the impact test and the adhesive splitting impact tester in the prior art have the following defects: the adopted pendulum impact structure has strict requirements on impact speed, a pendulum body is inconvenient to add weights, and the impact energy adjusting range is small; only a normal temperature test can be carried out, and a low temperature test and a high temperature test are not supported; the contact of the surfaces of the sample supports, the large friction resistance, the large energy loss, the large measurement error and the low accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the above-mentioned problem that prior art exists, provide a sample carrier assembly and adhesive splitting impact tester for impact test.
In order to realize the above-mentioned purpose, the utility model provides a sample carrier assembly for impact test, include the support, draw towards sensor and wedge hammer, the upper end of support is equipped with the cantilever, draw towards the sensor and connect downwards the front end of cantilever, draw the lower extreme of towards the sensor vertical downwards in order to be used for with treat impact test's sample be connected, the upper portion of wedge hammer is equipped with the cutting edge, the cutting edge be used for with the wedge hammer is hung even on the sample, just the cutting part of cutting edge is just down to the viscose glue bonding part of sample, so that the wedge hammer when receiving vertical decurrent impact force and drive the downward splitting of cutting edge the viscose glue bonding part of sample.
As the utility model discloses a further preferred technical scheme, the sample is two iron sheets of coincide each other, and the lower part of two iron sheets passes through the adhesive bonding, and upper portion is the fork form and divides, the fork form part on sample upper portion is used for the centre gripping cutting edge, just the cutting part of cutting edge is just down the adhesive bonding portion of sample lower part.
As a further preferred technical scheme of the utility model, the forked part on sample upper portion in the top of cutting edge pass through the bolt with draw the sub-unit connection who dashes the sensor, just the both sides of bolt are equipped with respectively and press from both sides tight sample and draw the backing plate that dashes the sensor.
According to the utility model discloses an on the other hand, the utility model also provides an adhesive splitting impact tester, a serial communication port, include frame, hammer block subassembly, carry hammer block subassembly, high low temperature environment case, and any one of the aforesaid a sample carrier assembly for impact test, wherein:
the sample bearing assembly is fixedly connected to the lower part of the rack through the support;
the hammer body assembly is positioned above the sample bearing assembly, can be installed on the rack in a sliding mode along the vertical direction, and comprises a hammer body frame and a hammer head, the hammer body frame is used for bearing a counterweight, the hammer head is connected to the hammer body frame downwards, and the hammer body assembly impacts the wedge-shaped hammer through the hammer head in the free downward sliding motion process;
the hammer lifting assembly is positioned above the hammer body assembly and can be slidably mounted on the rack along the vertical direction, the hammer lifting assembly is provided with a downward grabbing hook capable of being opened movably, the hammer lifting assembly grabs the hammer body assembly through the grabbing hook so as to be driven by a power unit to vertically move the hammer body assembly, and the hammer body assembly is driven to freely fall after the hammer lifting assembly and the hammer body assembly are unhooked;
the high-low temperature environment box is arranged at the lower part of the rack, and the sample bearing assembly is arranged in the high-low temperature environment box.
As a further preferred technical scheme of the utility model, power unit sets up the top in the frame, be equipped with application of force drive mechanism and guiding mechanism in the frame, power unit passes through application of force drive mechanism drives carry the hammer subassembly to follow guiding mechanism vertical removal.
As a further preferred technical scheme of the utility model, the power unit is servo motor, application of force drive mechanism is vertical and passes through band pulley and belt drive's lead screw by servo motor, guiding mechanism is the polished rod, carry the screw that the hammer subassembly reciprocated along with the lead screw and by the polished rod leads.
As a further preferred technical scheme of the utility model, the lead screw with the polished rod respectively is equipped with two, two the lead screw and two perpendicular bisector bilateral symmetry that the hammer subassembly was carried respectively relatively to the polished rod sets up.
As the utility model discloses a further preferred technical scheme, the left and right sides of hammer block frame be equipped with respectively with polished rod sliding fit's direction spout, when carrying hammer assembly and hammer block subassembly unhook back, the hammer block subassembly will be along the free landing of polished rod and strike the wedge hammer to peel off the sample.
As a further preferred technical solution of the present invention, the frame is further provided with a first speed measurement sensor and a second speed measurement sensor, and the hammer body frame is provided with a speed measurement detection sheet;
the first speed measuring sensor is inducted with the speed measuring sheet for initial speed test at the moment when the hammer head is in contact with the surface of the wedge-shaped hammer;
after the hammer head impacts the wedge-shaped hammer, the hammer body assembly and the wedge-shaped hammer fall to a preset position together, the sample is peeled off, and the second speed measuring sensor and the speed measuring sheet are inducted to be used for final speed testing.
As a further preferred technical scheme of the utility model, the counterweight is the weight, be equipped with vertical screw rod in the frame of hammer block frame, the weight cover is established in the screw rod and pass through nut on the screw rod is screwed up fixedly.
The utility model discloses a sample carrier assembly and adhesive splitting impact tester for impact test can reach following beneficial effect:
1) the sample bearing assembly and the sample are completely placed in the high and low temperature environment box, and the impact test is performed in the high and low temperature environment box, so that the accuracy of the test result in the high and low temperature environment can be ensured without moving the sample;
2) the sample bearing assembly enables the sample and the wedge-shaped hammer to be suspended, surface contact is avoided, friction is reduced, energy loss is less, the error of a test result is smaller, and the test precision is higher;
3) the adhesive splitting impact testing machine is provided with a high-low temperature environment box, so that high-low temperature tests can be realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a prior art pendulum adhesive split impact test.
In fig. 1: 1. pendulum, 2, bolt for sample fixing, 3, slide sheet for setting initial pendulum height, 4, splint, 5, sample, 6, pad, 7, wedge, 8, sensor.
FIG. 2 is a schematic structural view of a sample carrier assembly;
FIG. 3 is a schematic view of the structure of a sample;
FIG. 4 is a schematic structural diagram of an adhesive splitting impact tester;
FIG. 5 is a schematic view of the hammer block assembly.
In fig. 2 to 5: 100. the device comprises a power unit, 200, a rack, 300, a hammer lifting assembly, 400, a hammer body assembly, 401, a counterweight, 402, a hammer head, 403, a hammer body frame, 500, a sample bearing assembly, 501, a support, 502, a pulling and punching sensor, 503, a backing plate, 504, a bolt, 505, a blade, 506, a wedge-shaped hammer, 600, a high-low temperature environment box, 700 and a sample.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for the sake of clarity only, and are not intended to limit the scope of the invention, its relative relationship between the terms and their derivatives, and the scope of the invention should be understood as being limited by the claims.
As shown in fig. 2, a sample bearing assembly for impact test includes support 501, draws and dashes sensor 502 and wedge hammer 506, the upper end of support 501 is equipped with the cantilever, draw and dash sensor 502 and connect downwards the front end of cantilever, draw and dash the vertical downwards in order to be used for being connected with the sample 700 of waiting to strike the test of sensor 502 lower extreme, the upper portion of wedge hammer 506 is equipped with cutting edge 505, wedge hammer 506 passes through cutting edge 505 hangs on the sample 700, just the cutting edge of cutting edge 505 is just down to the viscose glue bonding part of sample 700, and sample 700 and wedge hammer 506 are unsettled state, avoid the face contact, and in the impact test process, reducible frictional force, energy loss is few for the error is little, and the precision is high.
In specific implementation, as shown in fig. 3, the sample 700 is two superimposed iron sheets, the lower portions of the two iron sheets are bonded by an adhesive, the upper portions of the two iron sheets are separated by a fork, the blade 505 is clamped on the fork on the upper portion of the sample 700, and the blade of the blade 505 is downward opposite to the adhesive bonding portion on the lower portion of the sample 700. The forked part of the upper part of the sample 700 is connected to the lower part of the pull-punch sensor 502 by a bolt 504 above the blade 505, and two pads 503 are respectively arranged on two sides of the bolt 504, and the two pads 503 are used for pressing the sample 700 and the sensor without damaging the sensor.
As shown in fig. 4 and 5, the mastic cleaving impact tester includes a rack 200, a sample carrying assembly 500, a hammer block assembly 400, a hammer lifting assembly 300, and a high and low temperature environment box 600, wherein:
the frame 200 is the main body of the whole testing machine;
the sample bearing assembly 500 is fixedly arranged at the lower part of the machine frame 200 through a support 501 thereof and is used for bearing a sample 700 to be impacted;
the hammer body assembly 400 is slidably mounted on the rack 200 in the vertical direction and comprises a hammer body frame 403 and a hammer head 402, the hammer body frame is used for bearing a counterweight 401, the hammer head 402 is connected to the hammer body frame 403 in a downward direction, and the hammer body assembly 400 impacts the wedge-shaped hammer 506 through the hammer head 402 in the free downward sliding motion process;
the hammer lifting assembly 300 is slidably mounted on the frame 200 in the vertical direction and is located above the hammer body assembly 400, the hammer lifting assembly 300 is provided with a downward and movably-opened grapple, the hammer lifting assembly 300 is connected with the hammer body frame 403 through the grapple, the top of the hammer body frame 403 is provided with a grapple and a grapple which are matched with the grapple, the hammer lifting assembly 300 is used for driving the hammer body assembly 400 to vertically move under the driving of the power unit 100, and the hammer body assembly 400 is enabled to freely fall after the hammer lifting assembly 300 is unhooked from the hammer body assembly 400;
high low temperature environment case 600 is located the lower part of frame 200, just sample carrier assembly 500 sets up in the high low temperature environment case 600 for can realize high low temperature test, sample carrier assembly 500 and sample 700 put into high low temperature environment case 600 the inside completely, and the impact test is gone on in high low temperature case, need not move sample 700, guarantees the accuracy of test result under the high low temperature environment.
In specific implementation, the power unit 100 is arranged at the top of the frame 200, the frame 200 is provided with the force application transmission mechanism and the guide mechanism, the power unit 100 drives the lifting hammer assembly 300 to vertically move along the guide mechanism through the force application transmission mechanism, the power unit 100 provides lifting power for the lifting hammer assembly 300, and when the lifting hammer assembly 300 is connected with the hammer body assembly 400 through the grabbing hook, the lifting hammer assembly 300 drives the hammer body assembly 400 to lift.
In specific implementation, the power unit 100 is a servo motor, the force application transmission mechanism is a vertical lead screw driven by the servo motor through a belt wheel and a belt, the guide mechanism is a polished rod, two lead screws and two polished rods are respectively arranged, and the two lead screws and the two polished rods are respectively arranged in bilateral symmetry relative to a perpendicular bisector of the hammer lifting assembly 300. The screw rod drives the screw nut to move up and down in the rotating process, and the screw rod vertically penetrates through the hammer body frame 403 of the hammer body assembly 400 and is fixedly connected with the screw nut, so that the hammer lifting assembly 300 can move up and down along with the screw nut of the screw rod and is guided by the polished rod.
In a specific implementation, the left and right sides of the hammer body frame 403 are respectively provided with a guiding sliding groove in sliding fit with the polish rod, and when the hammer lifting assembly 300 is unhooked from the hammer body assembly 400, the hammer body assembly 400 freely slides along the polish rod and impacts the wedge-shaped hammer 506 to peel off the sample 700.
In specific implementation, the frame 200 is further provided with a first speed measurement sensor and a second speed measurement sensor, and the hammer body frame 403 is provided with a speed measurement detection sheet; when the hammer head 402 is in contact with the surface of the wedge hammer 506, a first speed measuring sensor is inducted with a speed measuring sheet for initial speed test; when the hammer head 402 impacts the wedge-shaped hammer 506, the hammer block assembly 400 and the wedge-shaped hammer 506 fall to a preset position, in one embodiment, the preset position is a position where the hammer block assembly 400 and the wedge-shaped hammer 506 fall together by 50mm after the hammer head 402 impacts the wedge-shaped hammer 506, at this time, the sample 700 is completely peeled off, and the second speed measurement sensor senses the speed measurement chip for final speed measurement. The initial speed and the final speed are measured so as to facilitate the analysis of the impact test.
In the specific implementation, counterweight 401 is the weight, be equipped with vertical screw rod in the frame of hammer block frame 403, the weight cover is established in the screw rod and pass through nut on the screw rod is screwed up fixedly, and hammer block subassembly 400 accessible increases weight transform weight, and energy control range is wide, adjusts the convenience moreover.
The sample bearing assembly and the adhesive splitting impact testing machine for the impact test further comprise a control box, and system software of the control box is used for controlling the sample bearing assembly and the adhesive splitting impact testing machine for the impact test to act and collecting data of the pull-push sensor 502. The control box is also internally provided with a high-speed data conditioner and a high-speed data acquisition card for analyzing and processing the data of the drawing and punching sensor 502.
The test steps of the sample bearing assembly for the impact test and the adhesive splitting impact tester of the embodiment are as follows:
step one, sample loading: opening the front door of the high and low temperature environment box 600, fixing the sample 700 and the pull-impact sensor 502 firmly by using a bolt 504 and a backing plate 503, and closing the front door of the high and low temperature environment box 600;
step two, positioning: the top cover of the high and low temperature environment box 600 is automatically opened, the hammer body assembly 400 descends, and when the hammer body assembly 400 contacts the surface of the wedge-shaped hammer 506, the hammer body assembly 400 stops descending and then reversely lifts;
step three, temperature setting: setting the test temperature and the heat preservation time of the high-low temperature environment box 600 as required;
step four, impact: after the heat preservation is finished, the hammer component is lifted to a set height according to set energy, the grapple automatically opens, the hammer body component 400 freely falls down along the second guide mechanism to impact the wedge-shaped hammer 506, and the blade 505 of the wedge-shaped hammer 506 peels off the adhesive-bonded sample 700;
step five, hammer grabbing: the hammer lifting assembly 300 descends to automatically grab the hammer, the hammer body assembly 400 is lifted to a safe height, and the high-low temperature environment box 600 is automatically closed to keep warm continuously;
step six, test results: the system software analyzes the data acquisition, curve fitting and force values of the current test.
The working principle of the embodiment is as follows:
when the sample bearing assembly for the impact test and the adhesive splitting impact tester work, after the grapple of the hammer lifting assembly 300 is hung with the hammer body assembly 400, the power system drives the hammer lifting component 300 to lift the hammer body component 400 from the zero position to the set height, after the high-temperature and low-temperature environment box 600 is kept warm for the set time, when an impact button on the control box is pressed, the grapple of the hammer lifting assembly 300 can automatically unhook from the hammer body assembly 400, the hammer body assembly 400 freely falls along the first guide mechanism and impacts the wedge-shaped hammer 506 on the sample bearing assembly 500, the blade 505 of the wedge-shaped hammer 506 splits the adhered sample 700 when the wedge-shaped hammer 506 moves downwards, the system software collects the force-time curve of the impact moment through an impact force value sensor, a high-speed data conditioner and a high-speed data acquisition card, the impact speed is measured by a speed measuring system, the displacement is automatically calculated, and a force-displacement curve is obtained by integration.
Further, during the test, the instantaneous speed before and after impacting the sample 700 is measured, the energy absorbed by the sample 700 is calculated according to the kinetic energy difference, and then the F-S curve fitting is performed through software, so that the calculated result is more accurate, and the energy loss of the hammer body assembly 400 along the second guide mechanism can be basically ignored.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many changes and modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (10)
1. The utility model provides a sample bearing assembly for impact test, a serial communication port, include the support, draw towards sensor and wedge hammer, the upper end of support is equipped with the cantilever, draw and dash the sensor and connect downwards the front end of cantilever, the lower extreme that draws towards the sensor is vertical downwards in order to be used for being connected with the sample of treating impact test, the upper portion of wedge hammer is equipped with the cutting edge, the cutting edge be used for with the wedge hammer is hung even on the sample, just the cutting part of cutting edge is just down to the viscose bonding part of sample, so that the wedge hammer is when receiving vertical decurrent impact force and drives the splitting downwards of cutting edge the viscose bonding part of sample.
2. The sample bearing assembly for the impact test of claim 1, wherein the sample is two iron sheets overlapped with each other, the lower parts of the two iron sheets are bonded by the adhesive, the upper parts are separated in a fork shape, the fork-shaped part on the upper part of the sample is used for clamping the blade, and the blade part of the blade is downward opposite to the adhesive bonding part on the lower part of the sample.
3. The specimen bearing assembly for impact test according to claim 1 or 2, wherein the fork portion of the upper portion of the specimen is connected to the lower portion of the pull-punch sensor by a bolt above the blade, and the bolt is provided with a pad plate for clamping the specimen and the pull-punch sensor at both sides thereof.
4. An adhesive splitting impact tester, which is characterized by comprising a frame, a hammer body assembly, a lifting hammer assembly, a high and low temperature environment box and a sample bearing assembly for impact test as claimed in any one of claims 1 to 3, wherein:
the sample bearing assembly is fixedly connected to the lower part of the rack through the support;
the hammer body assembly is positioned above the sample bearing assembly, can be installed on the rack in a sliding mode along the vertical direction, and comprises a hammer body frame and a hammer head, the hammer body frame is used for bearing a counterweight, the hammer head is connected to the hammer body frame downwards, and the hammer body assembly impacts the wedge-shaped hammer through the hammer head in the free downward sliding motion process;
the hammer lifting assembly is positioned above the hammer body assembly and can be slidably mounted on the rack along the vertical direction, the hammer lifting assembly is provided with a downward grabbing hook capable of being opened movably, the hammer lifting assembly grabs the hammer body assembly through the grabbing hook so as to be driven by a power unit to vertically move the hammer body assembly, and the hammer body assembly is driven to freely fall after the hammer lifting assembly and the hammer body assembly are unhooked;
the high-low temperature environment box is arranged at the lower part of the rack, and the sample bearing assembly is arranged in the high-low temperature environment box.
5. The adhesive cleaving impact tester of claim 4, wherein the power unit is disposed at a top of the frame, the frame is provided with a force application transmission mechanism and a guide mechanism, and the power unit drives the hammer assembly to move vertically along the guide mechanism through the force application transmission mechanism.
6. The adhesive splitting impact testing machine according to claim 5, wherein the power unit is a servo motor, the force application transmission mechanism is a screw rod which is vertical and is driven by the servo motor through a belt wheel and a belt, the guide mechanism is a polished rod, and the hammer lifting assembly moves up and down along with a nut of the screw rod and is guided by the polished rod.
7. The adhesive splitting impact testing machine according to claim 6, wherein there are two of said lead screws and said two of said polish rods, and the two of said lead screws and the two of said polish rods are respectively disposed in bilateral symmetry with respect to a perpendicular bisector of the hammer lifting assembly.
8. The adhesive splitting impact tester according to any one of claims 4 to 7, wherein the hammer body frame is provided with guide sliding grooves on left and right sides thereof for sliding engagement with the polish rod, respectively, so that when the lifting hammer assembly is unhooked from the hammer body assembly, the hammer body assembly will slide freely along the polish rod and impact the wedge-shaped hammer to peel off the sample.
9. The adhesive splitting impact testing machine according to claim 8, wherein a first speed sensor and a second speed sensor are further provided on the frame, and a speed measuring detecting piece is provided on the hammer body frame;
when the hammer head is in contact with the surface of the wedge-shaped hammer, the first speed measuring sensor is inducted with the speed measuring detection sheet to be used for initial speed test;
after the hammer head impacts the wedge-shaped hammer, the hammer body assembly and the wedge-shaped hammer fall to a preset position together, the sample is peeled off, and the second speed measuring sensor and the speed measuring detection sheet are inducted to be used for final speed testing.
10. The adhesive splitting impact testing machine according to claim 4, wherein the weight is a weight, a vertical screw rod is arranged in the frame of the hammer body frame, and the weight is sleeved in the screw rod and screwed and fixed by a nut on the screw rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921135457.8U CN210571792U (en) | 2019-07-18 | 2019-07-18 | Sample bearing assembly for impact test and adhesive splitting impact testing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921135457.8U CN210571792U (en) | 2019-07-18 | 2019-07-18 | Sample bearing assembly for impact test and adhesive splitting impact testing machine |
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| CN210571792U true CN210571792U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798212A (en) * | 2021-02-03 | 2021-05-14 | 中煤科工开采研究院有限公司 | Anchor rod axial impact test bed and test method |
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2019
- 2019-07-18 CN CN201921135457.8U patent/CN210571792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798212A (en) * | 2021-02-03 | 2021-05-14 | 中煤科工开采研究院有限公司 | Anchor rod axial impact test bed and test method |
| CN112798212B (en) * | 2021-02-03 | 2022-06-17 | 中煤科工开采研究院有限公司 | Anchor rod axial impact test bed and test method |
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