CN110361256A - A kind of universal testing machine grip device - Google Patents
A kind of universal testing machine grip device Download PDFInfo
- Publication number
- CN110361256A CN110361256A CN201910776598.6A CN201910776598A CN110361256A CN 110361256 A CN110361256 A CN 110361256A CN 201910776598 A CN201910776598 A CN 201910776598A CN 110361256 A CN110361256 A CN 110361256A
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- Prior art keywords
- testing machine
- cutter head
- universal testing
- backboard
- bolt
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to marine anti-pollution performance test equipment technical fields, more particularly to a kind of universal testing machine grip device, including the upper fixture being connect with universal testing machine and lower fixture, wherein descending fixture includes load bearing unit, position regulating unit and sample holder unit, position regulating unit can accurately adjust the parallel spacing of cutter head Yu sample to be tested surface, apply speed by the accurate control force of universal testing machine, reduce the measurement error of macroscopical shell-fish fouling organism adhesive force, improve data reliability and reproducibility, cutter head progress constant motion or constant force is set to apply acceleration movement by universal testing machine, the variation of active force in synchronous recording cutter head motion process, fouling organism adhesive force numerical value can be tested, the toughness and elasticity of biogum can be characterized again;Its structure is simple, control is accurate, measurement result is reliable, is used cooperatively with universal testing machine, and accurate control force applies angle and speed, realizes the reliable measurements of macroscopical shell-fish fouling organism adhesive force.
Description
Technical field:
The invention belongs to marine anti-pollution performance test equipment technical fields, and in particular to a kind of universal testing machine is filled with fixture
It sets, is used cooperatively with universal testing machine, accurate control force applies angle and speed, realizes macroscopical shell-fish fouling organism adhesive force
Reliable measurements.
Background technique:
Marine biofouling is that biology is stained once occur to bring the apposition growth of works surface the phenomenon that in ocean
Greatly harm: ship resistance increase, pipeline obstruction, the reduction of heat exchanger thermal conductivity, sea-farming catch is caused to reduce
Deng being one of the major issue that marine economy activity must face.Increasingly harsh with environmental regulation, development does not depend on toxic
Chemical substance, environmentally protective pollution release type anti-fouling material have become the important directions of marine anti-pollution technology development.It is stained and releases
Type anti-fouling material is put generally by fouling organism is reduced in the adhesive force on its surface, fouling organism is made to be difficult to adhere to or adhere to not
Antifouling purpose is realized in jail.
How to evaluate adhesive force of the fouling organism on pollution release type anti-fouling material surface is pollution release type anti-fouling material
The preferred important method of antipollution assessment, formula development.Fouling organism microcosmic for diatom, bacterium, ulva spores etc., it is open
Number be 102023130 Chinese patent: a kind of flow channel type marine organism adhesion testing device, utilize aspect ratio rectangle survey
The turbulent flow that chamber forms stable development in test sample surface is tried, and utilizes the pressure of differential pressure pickup test sample surface different loci
Power is poor, calculates the attachment force data for obtaining material surface fouling organism automatically by software, surveys for marine fouling organism adhesive force
Examination provides reliable tools, improves anti-fouling material antipollution assessment technology;The main structure of device is by water circulation system and automatically
Control system composition, water circulation system includes expansion chamber, test chamber, light source and sink;Automatic control system includes differential pressure transporting
Device, variable frequency pump, flowmeter, pressure transmitter, programmable controller and computer, it is characterised in that the expansion chamber of box type structure
Interior upside right-to-left is successively formed respectively with water inlet, aperture stainless steel plate, honeycomb polycarbonate plate, stainless steel sieve and row
Air valve, expansion chamber left end are laterally formed with test chamber, differential pressure transmitter are formed on the side of test chamber left end, is equipped with vacuum in test chamber
Pump, the left-hand end of test chamber are equipped with sink, and the top of sink is formed with light source, and bottom of gullet introduction pipe is controlled by multiterminal valve
It is connected to water inlet, is successively formed respectively with variable frequency pump, flowmeter and pressure transmitter in the pipeline of connection;PLC technology
Device, computer telecommunication breath connection after respectively with differential pressure transmitter, vacuum pump, variable frequency pump, flowmeter and pressure transmitter power information
Connection, is generated turbulent flow in test chamber by variable frequency pump and washed away to specimen surface, according to the flow velocity of water flow, pressure when washing away
Difference, flushing time and specimen surface are stained the relationship between marine growth desorption rate, more can reliably evaluate material anti-pollution.
And shell-fish fouling organism macroscopical for barnacle, oyster, coil pipe worm etc., the prior art is generally using or with reference to ASTM D5618
(Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear)
Method is tested, and ASTM D5618 method carries out adhesive force survey to the attached barnacle of specimen surface by hand-held thrust meter
Examination, it is desirable that by the alignment probe barnacle bottom of thrust meter, keep parallel with specimen surface as far as possible, and apply with the power of about 4.5N/s
Acceleration is tested.Since ASTM D5618 method uses manual measurement, it is difficult to it is parallel with specimen surface to control thrust meter
Property and distance, it is more difficult to the application speed of power is accurately controlled, this will affect adhesive force test data accuracy and can
By property.Therefore, it is necessary to for macroscopical shell-fish fouling organism, a kind of power of accurately controlling of R & D design applies angle and speed
Grip device, (universal testing machine is also universal testing machine, and collection is stretched, bending, compression, sheared, ring is rigid with universal testing machine
The functions such as degree have precision height, speed-regulating range width, compact-sized, easy to operate, steady performance in one) cooperate and makes
It is evaluated with the performance to pollution release type anti-fouling material.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, a kind of universal testing machine of R & D design is filled with fixture
It sets, is used cooperatively with universal testing machine, can accurately adjust the spacing with specimen surface, give full play to the application of universal test machine power
Speed control and power measure accurate advantage, reduce the measurement error of macroscopical shell-fish fouling organism adhesive force, improving data can
By property.
To achieve the goals above, universal testing machine grip device of the present invention is by lower fixture and upper fixture group
At lower fixture is made of load bearing unit, position regulating unit and sample holder unit, and the main structure of load bearing unit includes lower peace
Fill seat, fastening plates and support plate;The main structure of position regulating unit includes sliding back and forth axis, lower mounting blocks, downslide motion block, preceding
Stop knob, sliding panel, link block, the axis that horizontally slips, left and right stop knob and upper mounting blocks afterwards;The main body of sample holder unit
Structure includes that the main structure of upper fixture includes objective table, backboard connecting plate, grip bolt connecting plate, backboard and grip bolt;
The main structure of upper fixture includes upper mounting seat, knife handle and cutter head.
The clamping range of grip bolt of the present invention is 0-40mm, meets the clamping that thickness is less than 40mm sample to be tested
It is fixed;For position regulating unit left and right adjusting cutter head to the region of sample to be tested surface fouling organism release effect, front and back adjusts back
The parallel spacing of plate and cutter head, the range of left and right adjusting are ± 300mm, and the range that front and back is adjusted is ± 80mm;Cutter head passes through ten thousand
The motion mode that the control of energy testing machine can be realized includes constant motion and constant force applies acceleration movement, synchronous recording perching knife fortune
The variation of active force during dynamic, tests fouling organism adhesive force numerical value, under constant motion mode, by cutter head and is stained life
Object touches the toughness and elasticity of the action time length characterization biogum of removing.
Sample to be tested in use, be adjacent to by universal testing machine of the present invention grip device by screwing grip bolt
And be fixed on backboard, cutter head is controlled by universal testing machine and is moved downward, cutter head and sample to be tested surface macroscopic view shell-fish are made
The bottom contact of fouling organism is tested so that fouling organism is detached from sample to be tested surface;After a certain domain test, lead to
It crosses universal testing machine control cutter head to move upwards, returns to cutter head above sample to be tested, loading is adjusted by position regulating unit
The position of platform carries out the test of fouling organism adhesive force to other regions one by one.
Universal testing machine grip device of the present invention can be used in the adhesive force and shearing force of adhesive and coating
Test.
Compared with prior art, the present invention including the upper fixture being connect with universal testing machine and lower fixture, wherein lower fixture
Comprising load bearing unit, position regulating unit and sample holder unit, position regulating unit can accurately adjust cutter head with it is to be tested
The parallel spacing on sample surface applies speed by the accurate control force of universal testing machine, reduces macroscopical shell-fish fouling organism attachment
The measurement error of power improves data reliability and reproducibility, so that cutter head is carried out constant motion or constant force by universal testing machine
Apply acceleration movement, the variation of active force in synchronous recording cutter head motion process, can test fouling organism adhesive force numerical value and
The toughness and elasticity of biogum can be characterized;Its structure is simple, control is accurate, measurement result is reliable.
Detailed description of the invention:
Fig. 1 is main structure schematic illustration of the invention.
Fig. 2 is the front perspective view of lower fixture of the present invention.
Fig. 3 is the side perspective view of lower fixture of the present invention.
Fig. 4 is the underside perspective view of lower fixture of the present invention.
Specific embodiment:
The present invention is described further by way of example and in conjunction with the accompanying drawings.
Embodiment 1:
The main structure for the universal testing machine grip device that the present embodiment is related to includes lower mounting seat 1, fastening plates 2, branch
Fagging 3 slides back and forth axis 4, lower mounting blocks 5, downslide motion block 6, front and back stop knob 7, sliding panel 8, link block 9, horizontally slips
Axis 10, left and right stop knob 11, upper mounting blocks 12, objective table 13, backboard connecting plate 14, grip bolt connecting plate 15, backboard 16,
Grip bolt 17, upper mounting seat 18, knife handle 19 and cutter head 20;The lower mounting seat 1 connecting with universal testing machine lower beam passes through tight
Solid plate 2 is connect with 3 bolt type of support plate, and it is sliding to be provided with two parallel front and backs on the longitudinal sideline in upper surface two of support plate 3
Moving axis 4 slides back and forth axis 4 and is connect by lower mounting blocks 5 with 3 bolt type of support plate, slides back and forth and be arranged with downslide motion block on axis 4
6, front and back stop knob 7 is provided on one of downslide motion block 6, and the top of downslide motion block 6 is provided with sliding panel 8, sliding panel 8
Top be provided with link block 9, two parallel axis 10 that horizontally slip, the end face setting of link block 9 are arranged in link block 9
There is left and right stop knob 11, the end for the axis 10 that horizontally slips is connect by upper mounting blocks 12 with 13 bolt type of objective table, objective table
13 upper surface is provided with a backboard connecting plate 14 and two grip bolt connecting plates 15, one end of backboard connecting plate 14 and load
The connection of 13 bolt type of object platform, the other end are connect with 16 bolt type of backboard, one end of grip bolt connecting plate 15 and 13 spiral shell of objective table
Hydrant connection, other end setting is there are two grip bolt 17, the upper installation connecting with the sensor on universal testing machine upper beam
Seat 18 is connect by knife handle 19 with cutter head 20.
Lower mounting seat 1 that the present embodiment is related to, support plate 3, slides back and forth axis 4, lower mounting blocks 5, lower slider at fastening plates 2
Block 6, front and back stop knob 7, sliding panel 8, link block 9, the axis 10 that horizontally slips, left and right stop knob 11, upper mounting blocks 12, loading
Platform 13, backboard connecting plate 14, grip bolt connecting plate 15, backboard 16 and grip bolt 17 constitute lower fixture;Upper mounting seat 18, knife
Handle 19 and cutter head 20 constitute upper fixture.
The objective table 13 that the present embodiment is related to is vertical with backboard 16, and backboard 16 is parallel with cutter head 20;Knife handle 19 is semicolumn
Shape structure, plane side is towards backboard 16;Cutter head 20 is fixed on the bottom end of knife handle 19, the width of cutter head 20 by interior-type bolt
For 40mm;The total length of knife handle 19 and cutter head 20 is 200mm.
Embodiment 2:
When the universal testing machine that the present embodiment is related to is tested with grip device, using straight pin by lower mounting seat 1 with
The connection of 3366 type universal testing machine lower beam of INSTRON, then sample to be tested is placed between backboard 16 and grip bolt 17,
Screwing grip bolt 17 makes sample to be tested be adjacent to backboard 16 and fixed, will be in upper mounting seat 18 and universal testing machine using straight pin
Sensor connection on crossbeam, adjusting upper beam makes to be aligned at the top of cutter head 20 and sample to be tested, and adjusting slides back and forth axis 4 and a left side
Right sliding axle 10, controls the parallel spacing of cutter head 20 and sample to be tested surface, and screws front and back stop knob 7 and left and right braking rotation
Button 11 controls cutter head 20 by universal testing machine and contacts with sample to be tested surface macroscopic view shell-fish fouling organism bottom, controls knife
First 20 movement velocity or power applies speed, and acquisition in real time is so that fouling organism is detached from the active force of specimen surface;It is completed
Afterwards, it is returned to above sample using universal testing machine control cutter head 20, relaxation left and right stop knob 11 changes the axis 10 that horizontally slips
Position repeats the test that above step carries out new region macroscopic view shell-fish fouling organism adhesive force, according to adhesive force obtained
Data evaluate sample to be tested anti-pollution.
Claims (6)
1. a kind of universal testing machine grip device, it is characterised in that be made of lower fixture and upper fixture, lower fixture is single by carrying
Member, position regulating unit and sample holder unit are constituted, and the main structure of load bearing unit includes lower mounting seat, fastening plates and support
Plate;The main structure of position regulating unit includes sliding back and forth axis, lower mounting blocks, downslide motion block, front and back stop knob, sliding
Plate, link block, the axis that horizontally slips, left and right stop knob and upper mounting blocks;The main structure of sample holder unit includes upper fixture
Main structure include objective table, backboard connecting plate, grip bolt connecting plate, backboard and grip bolt;The main body knot of upper fixture
Structure includes upper mounting seat, knife handle and cutter head.
2. universal testing machine grip device according to claim 1, it is characterised in that connect with universal testing machine lower beam
The lower mounting seat connect is connect by fastening plates with support plate bolt type, is provided with two on the longitudinal sideline in upper surface two of support plate
Root it is parallel slide back and forth axis, slide back and forth axis and connect by lower mounting blocks with support plate bolt type, slide back and forth and be arranged on axis
There is downslide motion block, front and back stop knob is provided on one of downslide motion block, sliding panel is provided at the top of downslide motion block, it is sliding
It is provided with link block at the top of movable plate, two parallel axis that horizontally slip, the end face setting of link block are arranged in link block
There is left and right stop knob, the end for the axis that horizontally slips is connect by upper mounting blocks with objective table bolt type, the upper surface of objective table
It is provided with a backboard connecting plate and two grip bolt connecting plates, one end of backboard connecting plate is connect with objective table bolt type,
The other end is connect with backboard bolt type, and one end of grip bolt connecting plate is connect with objective table bolt type, and the other end is provided with two
A grip bolt, the upper mounting seat connecting with the sensor on universal testing machine upper beam are connect by knife handle with cutter head.
3. universal testing machine grip device according to claim 1, it is characterised in that the clamping range of grip bolt is
0-40mm meets thickness gripping less than 40mm sample to be tested;Position regulating unit left and right adjusting cutter head is to sample to be tested
The region of surface fouling organism release effect, front and back adjust the parallel spacing of backboard and cutter head, and the range of left and right adjusting is ±
300mm, the range that front and back is adjusted are ± 80mm;Cutter head includes perseverance by the motion mode that the control of universal testing machine can be realized
Speed movement and constant force apply acceleration movement, the variation of active force in synchronous recording perching knife motion process, test fouling organism attachment
Power numerical value characterizes biogum by the action time length that cutter head and fouling organism touch removing under constant motion mode
Toughness and elasticity.
4. universal testing machine grip device according to claim 1, it is characterised in that objective table is vertical with backboard, backboard
It is parallel with cutter head;Knife handle is half cylindrical structure, and plane side is towards backboard;Cutter head is fixed on knife handle by interior-type bolt
Bottom end, the width of cutter head are 40mm;The total length of knife handle and cutter head is 200mm.
5. universal testing machine grip device described in -4 according to claim 1, it is characterised in that in use, by screwing clamping
Sample to be tested is adjacent to and is fixed on backboard by bolt, by universal testing machine control cutter head move downward, make cutter head with it is to be measured
The bottom contact of specimen surface macroscopic view shell-fish fouling organism is tested so that fouling organism is detached from sample to be tested surface;It is a certain
After domain test, cutter head is controlled by universal testing machine and is moved upwards, cutter head is returned to above sample to be tested, passes through position
The position that unit adjusts objective table is adjusted, other regions are carried out with the test of fouling organism adhesive force one by one.
6. universal testing machine grip device described in -4 according to claim 1, it is characterised in that can be used in adhesive and painting
The adhesive force and shearing force testing of layer.
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CN201910776598.6A CN110361256A (en) | 2019-08-22 | 2019-08-22 | A kind of universal testing machine grip device |
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Application publication date: 20191022 |