CN110456235A - Thin-film electro weakness detector - Google Patents
Thin-film electro weakness detector Download PDFInfo
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- CN110456235A CN110456235A CN201910637563.4A CN201910637563A CN110456235A CN 110456235 A CN110456235 A CN 110456235A CN 201910637563 A CN201910637563 A CN 201910637563A CN 110456235 A CN110456235 A CN 110456235A
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- press strip
- positive
- pressing plate
- film
- inserts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Thin-film electro weakness detector: insulating base is equipped with the conductive rubber slab placement hole that depth is less than negative conductive rubber plate thickness, and cathode copper bar and negative conductive rubber slab are connected.The middle-end of film exemplar is divided on negative conductive rubber slab to carry out electric weakness detection.Positive inserts is connected with positive inserts pressing plate replaceable, and lower surface is located at the lower section of positive inserts pressing plate lower surface；Positive copper bar and positive inserts pressing plate are connected and are stretched outside outside positive inserts pressing plate front end, positive copper bar rear end and positive inserts electrical connection.The lower surface of anode inserts is pressed on film exemplar when detection.Four film exemplar intermediate plate groups are opposed to set up separately outside the rear and front end of negative conductive rubber slab in pairs, with film exemplar intermediate plate group of group or so.Two sets of clamping devices or so are opposed to outside the left and right edges for being located at negative conductive rubber slab, and press strip is located at the top of positive inserts pressing plate and is connected with press strip installing arm；Press strip installing arm and operation arm and pedestal are hinged, operate arm and pedestal is hinged.
Description
Technical field
The present invention relates to a kind of detecting instruments, and in particular to a kind of electric insulation thin-film electro weakness detector.
Background technique
There are mainly two types of for the conventional solution of the electric weak point test of electric insulation film:
The first conventional solution: coiled test method, including fillet are coiled with wide item in rolls, and this method is negative with roller bearing
Pole, aluminium foil or conductive adhesive tape are anode, and film exemplar is placed between positive and negative anodes, and film exemplar at the uniform velocity turns under the traction of roll shaft
It is dynamic, realize the continuous detection of the electric weakness performance of coiled film exemplar.Such as application number 201810104242.3, Shen Qing Publication
The application for a patent for invention of number 108226729 A of CN, entitled " high-precision thin-film electro weak point test instrument ".This technical solution
Have the disadvantage that: 1. main guide devices and cathode are roll shaft, need to be equipped with the components such as bearing and servo motor, to realize
The continuous detection of coiled film exemplar, cost are high；2. not being suitable for the biggish films test of ductility；
Second of conventional solution: flat band method is suitable for wide film exemplar test, positive and negative extremely smooth flat, film sample
The size that part need to cut into corresponding unit area is placed between positive and negative anodes, to realize that film exemplar unit area electricity weakness is surveyed
Examination.This technical solution has the disadvantage that: 1. positive components wrap up soft rubber piece using aluminium foil, wrap up manually it is inconvenient, and
The lack of standardization of package operation easily causes aluminium foil edges creased or overlapping, and folding line high spot easily scratches film exemplar to be detected, makes
It is damaged at the detection of film exemplar；2. being suitable only for larger-size film exemplar detection, and film exemplar size needs basis
Detection device customization；3. since detected film exemplar cannot achieve perfect smooth laying from curling film and determine
Position, it is inconvenient；4. positive plate lacks positioning device, and positive and negative anodes component is completely dependent on weight to the compression pretightning force of film exemplar
Power effect, it is high to the requirement for horizontality of experiment desktop；5. cathode block is movable, there are high-risk security risks.
Summary of the invention
Main inventive purpose of the invention, be to provide a kind of film exemplar to be detected upper and lower surface can respectively with it is positive and negative
Pole corresponding component is bonded closely and is readily adapted to accommodate the film exemplar to be detected of different width dimensions specification, and film exemplar to be detected is fixed
The easy thin-film electro weakness detector in position.
Technical solution used in the present invention is: a kind of thin-film electro weakness detector: including insulating base, negative conductive rubber
Plate, cathode copper bar, positive inserts, positive inserts pressing plate, positive copper bar, film exemplar intermediate plate group, clamping device；
Insulating base is equipped with the conductive rubber slab placement hole that depth is less than negative conductive rubber plate thickness, the rear end of cathode copper bar
It is connected with the right anterior angle of negative conductive rubber slab；Front and back trend film exemplar middle-end divide on negative conductive rubber slab with
Receiving carries out electric weakness detection to it；
Positive inserts is connected with positive inserts pressing plate replaceable, and lower surface is located at the lower section of positive inserts pressing plate lower surface；Just
The middle-end or left end of pole copper bar rear end and positive inserts pressing plate front end are connected, front end is stretched outside outside positive inserts pressing plate front end, anode
Copper bar rear end and positive inserts electrical connection；The lower surface of anode inserts is pressed in the middle-end for the film exemplar that front and back is moved towards when detection
On；
Film exemplar intermediate plate group includes intermediate plate, screw rod, spring, nut；Four film exemplar intermediate plate groups set up separately in pairs negative
Opposed with the screw rod of film exemplar intermediate plate group of group or so outside the rear and front end of pole conductive rubber slab, the lower end of screw rod passes through exhausted
It is connected after stepped counterbore on edge bottom plate with nut fine thread；Spring is sleeved on the screw rod, and the lower end of spring falls in step type
In the macropore of counterbore upper end；
Clamping device includes press strip, press strip installing arm, operation arm, pedestal；Totally two sets of clamping device；Two pedestals or so are opposed to
It is located at outside the left and right edges of negative conductive rubber slab；Two press strips be front and back trend and be located at positive inserts pressing plate top and and
One end of press strip installing arm is connected；The other end of press strip installing arm is simultaneously and operation arm, pedestal are hinged, operates the middle-end of arm
It is hinged with pedestal；
When detection, the lower surface of positive inserts and the lower surface of intermediate plate respective end press against the upper table of film exemplar corresponding site
On face.
The present invention is being met the examination for being used as thin-film electro weakness detection as defined in GBT 13542.2-2009 using preceding elder generation
It is installed in proved recipe method and experimental rig main body, required portion when doing detection work is installed in the experimental rig main body
Part and line.The positive inserts that there is the present invention muti-piece to be connected with positive inserts pressing plate, these positive inserts and positive inserts pressure
Connection structure between plate is identical, can select different positive inserts before use according to the width of strip film exemplar to be measured
It is connected together with positive inserts pressing plate, the lower end width of selected positive inserts is about than detected strip film exemplar
Width is 2 millimeters small, the correspondent section of the rear surface of anode inserts and detected strip film exemplar when guaranteeing detection
The perfect contact of upper surface.Before strip film exemplar to be measured being put into detection position, first each flexible intermediate plate is revolved
It leaves out the placement channel of strip film exemplar to be measured, lift press strip, the positive inserts to connect together and positive inserts pressure
Board group component is lifted away from detection job position, then strip film exemplar to be measured is well placed on detection position upper berth, then tool
Flexible intermediate plate is lifted to be rotated back to let go and is pressed on strip film exemplar to be measured, at this time the trend of flexible intermediate plate
It is left and right trend, flexible intermediate plate is clipped in strip film exemplar to be measured clamping force size in insulating base plate face
It is adjusted by adjusting the link position of nut and screw rod in film exemplar intermediate plate group, film exemplar intermediate plate is connected with screw rod
Connecting pin head that screw rod is acted against by spring lower surface on, while the lower surface on the head of screw rod and film exemplar intermediate plate and
Being equipped between the connected connecting pin of screw rod prevents film exemplar intermediate plate from occurring the anti-rotation structure of rotation situation generation with respect to screw rod.It is logical
It receives and distributes turn and moves screw rod, film exemplar intermediate plate will be rotated with screw rod.At this time if it find that strip film exemplar to be measured and cathode
The contact surface of conductive rubber slab has uneven whole state, then can be corresponding flexible intermediate plate towards far from negative conductive
The direction of rubber slab rotates, and flexible intermediate plate is pressed in always on the surface of strip film exemplar to be measured in rotation process,
After the leveling of the respective surfaces of strip film exemplar to be measured is whole, then the positive inserts being fixed together and positive inserts pressing plate
Then sub-assembly lift playback is again pressed in press strip the lower surface for guaranteeing positive inserts on positive pressing plate on detection operating position
Reliably touch and connect together with the respective surfaces of strip film exemplar to be measured, then cathode copper bar, positive copper bar respectively and
Corresponding conducting wire connects, and can subsequently carry out corresponding thin-film electro weakness detection.Due to the present invention only need according to
The positive inserts that the developed width of survey strip film exemplar replaces with different in width can carry out corresponding thin-film electro weakness
Detect operation, and due to negative conductive rubber plate thickness be higher than conductive rubber slab place hole depth can guarantee it is to be detected thin
The upper and lower surface of film exemplar can be bonded with positive inserts lower surface and negative conductive rubber slab upper surface closely respectively, therefore can be with
Obtain reliable testing result.
Preferably, further including having two scales.The scale placement deep gouge there are two left and right trend is set on insulating base.Two
A scale places deep gouge and is located at outside the forward and backward hole side in conductive rubber slab placement hole and is respectively positioned on corresponding two stepped counterbores
Front.The thickness of scale is less than or equal to the depth that scale places deep gouge.This preferred embodiment is conducive to strip film to be measured
Exemplar is accurately and rapidly put into detection position.
Preferably, further including having transparent shield, the front end of transparent shield is equipped with a cathode copper bar and passes through notch
Pass through notch with a positive copper bar.The lower edge of the side wall of transparent shield and the periphery of insulating base are fixedly connected with.This preferred side
On the one hand case is conducive to improve safety and observability when detection operation, inspection when on the other hand being also beneficial to not detect
Survey the safeguard protection of device.
Preferably, insulating base is equipped with two pieces of convex blocks for being connected with pedestal, the lower end of pedestal and convex block are connected
Together.This preferred embodiment, allowing to guarantee by replacing or correcting the modes such as convex block thickness will not be because insulating base be flat
Whole degree facilitates gripping by the location and installation of device to detection operation bring adverse effect.
Preferably, the anode inserts pressing plate is conductive pressing plate, the rear end of positive copper bar and positive inserts pressing plate are connected,
The upper face electrical connection of the lower surface of the rear end of positive copper bar and positive inserts pressing plate；It further include having clamping device rubber pad.Folder
Tight device rubber pad and press strip are fixed together to form combination press strip, and the lower surface of clamping device rubber pad is located under press strip
Side.This preferred embodiment, positive copper bar and positive inserts electric connection structure are simple, reliable.
Preferably, being equipped with press strip link structure between press strip and press strip installing arm.Press strip link structure connects including centre
Extension bar and locking nut.The upper and lower side of middle brace rod is formed with fine thread, and it is intermediate that the middle-end of middle brace rod is equipped with rotation
The structure of connecting rod, the upper end of middle brace rod pass through it is in press strip installing arm, left and right trend slot after and locking screw
Box thread connection is to be connected together middle brace rod and press strip installing arm.Spiral shell in the middle part of the lower end of middle brace rod and press strip
Line connection, so that middle brace rod and press strip are connected together.Press strip and press strip installing arm pass through the press strip link structure
Realize that press strip is connected with one end of press strip installing arm.This preferred embodiment, the position for being conducive to adjustment adjustment press strip are to be measured to adapt to
The width of strip film exemplar.
Preferably, being additionally provided with positive inserts pressing plate positioning column on insulating base.This preferred embodiment is conducive to improve anode
The accurate positionin speed of inserts pressing plate, guarantees the accurate positionin of positive inserts pressing plate, and then improves the positioning accuracy of positive inserts
And locating speed, be conducive to improve detection operating efficiency.
In conclusion the beneficial effects of the present invention are: 1. positive components combine structure by positive inserts, positive inserts pressing plate
At, positive copper bar and positive inserts pressing plate electrical connection, the film sample that conductive positive inserts can be moved towards according to front and back to be measured
Part is replaced, and then no replacement is required for other components；Positive inserts pressing plate positions rod structure, then can greatly improve positive inserts
Locating speed, therefore the film exemplar electricity weakness detection operation needs of different in width can be easily adapted to；2. utilizing four
The operation of film exemplar intermediate plate group and scale cooperate, when can well solve detected film exemplar from curling film and
It cannot achieve perfect smooth laying and positioning；3. can be dropped using the coordinating operation of clamping device and negative conductive rubber slab
It is low high to the requirement for horizontality of experiment desktop, to reduce processing and manufacturing cost, while also advantageously improving detection quality；4.
Negative conductive rubber slab is placed in conductive rubber slab and places in hole, will not move and fall in detection process, and operational security is high.
Detailed description of the invention
Fig. 1: decomposition diagram of the invention；
Fig. 2: the structural schematic diagram after present invention assembling；
Fig. 3: the present invention takes away the structural schematic diagram after transparent shield after assembling.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes insulating base 1, negative conductive rubber slab 2, cathode copper bar 3, anode
Inserts 5, positive inserts pressing plate 6, positive copper bar 7, film exemplar intermediate plate group 8, clamping device 9, two scales 10, transparent shield
11。
1 upper face of insulating base is rectangle plate face.The side of the rectangle is left and right trend and front and back trend, insulating base 1
It is equipped with the conductive rubber slab placement hole 1.1 that depth is less than 2 thickness of negative conductive rubber slab, the conductive rubber slab places hole
1.1 by one in one on rectangle, placement that four sides are parallel with 1 upper face side of insulating base hole main body and preceding right corner to the right
The placement hole side slot hole of extension is constituted altogether.Corresponding negative conductive rubber slab 2 is adapted to place hole 1.1 with conductive rubber slab
Negative conductive rubber slab, cathode copper bar 3 then correspondingly be L shape copper bar, the rear end of cathode copper bar 3 be pressed in be located at place hole side slot
Negative conductive rubber slab upper surface in hole is simultaneously fixed together with two unit bolt nuts and negative conductive rubber slab
The right anterior angle of the rear end and negative conductive rubber slab 2 of realization cathode copper bar 3 is fixedly connected with, to realize cathode copper bar 3 and cathode
The electrical connection of conductive rubber slab 2, the front end of cathode copper bar 3 extend back and are connected with the right end of the rear end of cathode copper bar 3.Front and back
The middle-end of the film exemplar 4 of trend is divided on negative conductive rubber slab 2 to receive to carry out it electric weakness detection.Accordingly just
The vertical side of four of pole inserts pressing plate 6 defines a rectangle cylinder.Insulating base 1 is additionally provided with positive inserts pressing plate positioning column
1.5, the cross section of two positive inserts pressing plate positioning columns 1.5 is L shape, one of them is located at conductive rubber slab and places hole 1.1
Front end area outside left side, another is located at conductive rubber slab and places the back-end region cheated outside 1.1 right edges, the two anodes
Four L shape faces of inserts pressing plate positioning column 1.5 constitute the positioning surface of positive inserts pressing plate 6.
The upper end of transparent shield 11 be one with the equal-sized plate face of 1 upper face of insulating base, transparent shield 11
Upper end is downwardly extending a wall.A side and insulation are respectively installed on three end of left end, right end and rear end of insulating base 1
The parallel transparent shield connection bump 1.6 in the upper end respective rectangular side of bottom plate 1, the lower end of the respective side walls of transparent shield 11
It is connected together with the respective side walls of corresponding transparent shield 11 using the flexible fastening of transparent shield 11, transparent shield
The lower end of 11 four side walls is located on 1 upper face of insulating base.The front side wall right end of transparent shield 11 is equipped with one for negative
The cathode copper bar that pole copper bar passes through is equipped with one for positive copper bar by notch 11.1, the middle-end of the front side wall of transparent shield 11
The positive copper bar passed through passes through notch 11.2.
The anode inserts pressing plate 6 is conductive pressing plate, before the lower surface of the rear end of positive copper bar 7 and positive inserts pressing plate 6
The middle-end at end is fixed together with two bolts, to realize lower surface and the anode inserts pressing plate 6 of the rear end of positive copper bar 7
Upper face electrical connection.The front end of positive copper bar 7 is stretched outside outside positive 6 front end of inserts pressing plate.It is moved towards in front and back the upper end of positive inserts 5
, inverted tongue structure, the lower end of positive inserts constitutes by the convex surfaces of aforementioned inverted tongue structure are downwardly projecting, phase
The lower end for the positive inserts pressing plate 6 answered is equipped with the tongue for being inverted bulge-structure adaptation that a front and back is moved towards and aforementioned, and anode is embedding
The upper end of part 5 is plugged in the tongue, 6 replaceable electrical connection connection of positive inserts 5 and positive inserts pressing plate, due to positive copper
Row 7 and positive inserts pressing plate 6 are electrically connected, so that positive 7 rear end of copper bar and positive inserts 5 are electrically connected；The lower surface of positive inserts 5
Positioned at the lower section of positive 6 lower surface of inserts pressing plate；The lower surface of anode inserts 5 is pressed in the film exemplar 4 that front and back is moved towards when detection
Middle-end on.
Film exemplar intermediate plate group 8 includes volute spring 8.3, the nut 8.4 of intermediate plate 8.1, screw rod 8.2, big end under.Four
Film exemplar intermediate plate group 8 sets up separately in pairs outside the rear and front end of negative conductive rubber slab 2, with the film exemplar intermediate plate group of group
8 screw rod 8.2 or so is opposed, and the lower end of screw rod 8.2 passes through after the stepped counterbore 1.2 on insulating base 1 and 8.4 closely-pitched of nut
It is threadedly coupled；8.3 sets of spring on screw rod 8.2, the lower end of spring 8.3 is fallen in stepped counterbore 1.2.Wherein, intermediate plate 8.1 is main
To be connected by the position being connected with screw rod 8.2, the position being pressed on film exemplar 4 and the inclination that the two positions are linked together
Socket part position is constituted；The position being connected with screw rod 8.2 is higher than intermediate plate 8.1 and is pressed in the position on film exemplar 4, and intermediate plate 8.1 is pressed in thin
The free end at the position on film exemplar 4 upwarps.Intermediate plate is acted against the head of screw rod with the connecting pin of screw rod being connected by spring
Lower surface on, while between the lower surface on the head of screw rod and film exemplar intermediate plate and the connected connecting pin of screw rod be equipped with prevent
Film exemplar intermediate plate occurs the anti-rotation structure of rotation situation generation with respect to screw rod, and the anti-rotation structure is superfluous because being that simple technique is not done herein
It states.The scale placement deep gouge 1.3 there are two left and right trend is set on insulating base 1, two scales placement deep gouges 1.3 are located at and lead
Electric rubber slab is placed outside the forward and backward hole side in hole 1.1 and is respectively positioned on the front of corresponding two stepped counterbores 1.2；The thickness of scale 10
Degree is less than or equal to the depth that scale places deep gouge 1.3, and the bolt of scale 10, nut are fixed on scale and place in deep gouge 1.3.
Clamping device 9 includes press strip 9.1, press strip installing arm 9.2, operation arm 9.3, pedestal 9.4, clamping device rubber pad
9.5, press strip link structure 9.6.Press strip link structure 9.6 is located between press strip 9.1 and press strip installing arm 9.2.Press strip link knot
Structure 9.6 includes middle brace rod 9.61 and locking nut 9.62；The upper and lower side of middle brace rod is formed with fine thread, and centre connects
The middle-end of extension bar 9.61 is equipped with structure [the equal and intermediate connection of the vertical lateral surface at position where the structure of rotation middle brace rod
The side of bar upper and lower ends screw thread has certain interval, can produce one section of hexagonal prisms, one section of quadrangular or two are mutually perpendicular to
And it is each perpendicular to the counterbore for being used to plant bull stick of middle brace rod axis, the present embodiment is hexagonal prisms structure].Clamping device rubber
The rectangle elongated slot for the front and back trend that rubber mat 9.5 is equipped with and press strip 9.1 is adapted to, press strip 9.1 is arranged in the rectangle elongated slot, and leads to
It crosses one of several screws, some glue, tight fit method or two methods combines and clamping device rubber pad 9.5
It is fixed together to form combination press strip, the present embodiment integrates 9.5 He of clamping device rubber pad by glue and tight fit
Press strip 9.1 is fixed together, and the lower surface of clamping device rubber pad 9.5 is located at the lower section of press strip 9.1, by clamping device rubber pad
9.5 and the combination press strip to be formed that is fixed together of press strip 9.1 be that front and back is moved towards and is located at the top of positive inserts pressing plate (6).In
Between connecting rod upper end pass through it is in press strip installing arm 9.2, left and right trend slot 9.21 after and 9.62 spiral shell of locking nut
Line connection is to be connected together middle brace rod 9.61 and press strip installing arm 9.2；The lower end of middle brace rod and press strip 9.1
Middle part is threadedly coupled, so that middle brace rod 9.61 and press strip 9.1 are connected together；Press strip 9.1 and press strip installing arm 9.2 are logical
It crosses the press strip link structure 9.6 and realizes that press strip 9.1 is connected with one end of press strip installing arm 9.2.Two sets 9 or so pairs of clamping device
It is located at setting outside the left and right edges of negative conductive rubber slab 2.Pedestal 9.4 divides pedestal connecting plate to constitute by two opposed L shapes, and two
A opposed L shape divides the vertical plate face of pedestal connecting plate to be parallel to each other and is each perpendicular to front and back trend.Insulating base 1 is equipped with two
Block be used for the convex block 1.4[convex block that is connected with pedestal 9.4 can, screw cementing with insulating base 1 connect or and be located at insulating base
Counterbore interference fit connection on 1 etc. is ok, and can also be directly placed on insulating base, because being simple technique, In
This is not repeated them here], it sets on every piece of convex block 1.4 there are four through-hole, is correspondingly also set on insulating base there are four through-hole, and each L
Shape, which is divided in the horizontal plate face of pedestal connecting plate, to be then all provided with there are two through-hole, each L shape divide pedestal connecting plate use from the bottom up according to
It is secondary to pass through after sum on insulating base, being located on convex block 1.4 is located at the through-hole in the horizontal plate face of L shape pedestal connecting plate
Bolt and a nut link together and L shape pedestal connecting plate and insulating base be fixed together.Operation arm 9.3 leans on
One end of nearly press strip 9.1 is made of two blocks of vertical side plates, the spacing and two opposed L of the adjacent plate face of this two blocks vertical side plates
Shape divides the adjacent panels interplanar distance of the vertical plate face of pedestal connecting plate equal；The other end of press strip installing arm 9.2 is L-shaped and is inserted in
Corresponding two L shapes are divided to two pieces of between the vertical plate face of pedestal connecting plate and one end of the close press strip 9.1 of operation arm 9.3
Between vertical side plate, the upper end of the other end of press strip installing arm 9.2 and one end of operation arm 9.3 are hinged, press strip installing arm 9.2
The other end lower end and L shape divide pedestal connecting plate hinged, articulated shaft is horizontally disposed, and specific articulated structure is because of skill known in being
Art, this will not be repeated here.The middle-end of operation arm 9.3 is then equipped with to be protruded into two L shapes and divides between the side wall of pedestal connecting plate downwards
Gap lug boss, the middle-end of operation arm 9.3 divided by horizontally disposed articulated shaft using the lug boss and the two L shapes
The side walls hinged middle-end and pedestal 9.4 to realize operation arm 9.3 together of pedestal connecting plate is hingedly.
When detection, the lower surface of positive inserts and the lower surface of intermediate plate respective end press against film exemplar corresponding site
On upper surface.
The specific embodiment of the above is only the preferable embodiment of the present invention, and tool of the invention is not limited with this
Body implements structure and practical range.In fact, the shape, structure and purpose of design can also make according to the present invention
Equivalent variation.Therefore, some equivalence changes made by all shape, structures and purpose of design in accordance with the present invention ought to
It is included within the scope of protection of the present invention namely these equivalence changes all should be by protection of the invention.
Claims (7)
1. a kind of thin-film electro weakness detector, it is characterized in that: including insulating base (1), negative conductive rubber slab (2), cathode copper
Arrange (3), positive inserts (5), positive inserts pressing plate (6), positive copper bar (7), film exemplar intermediate plate group (8), clamping device (9)；
Insulating base is equipped with the conductive rubber slab placement hole (1.1) that depth is less than negative conductive rubber plate thickness, cathode copper bar
Rear end and negative conductive rubber slab right anterior angle be connected；The middle-end of the film exemplar of front and back trend is divided in negative conductive rubber
To receive to carry out it electric weakness detection on plate；
Positive inserts is connect with positive inserts pressing plate replaceable, and lower surface is located at the lower section of positive inserts pressing plate lower surface；Just
The middle-end or left end of pole copper bar rear end and positive inserts pressing plate front end are connected, front end is stretched outside outside positive inserts pressing plate front end, anode
Copper bar rear end and positive inserts electrical connection；The lower surface of anode inserts is pressed in the middle-end for the film exemplar that front and back is moved towards when detection
On；
Film exemplar intermediate plate group includes intermediate plate (8.1), screw rod (8.2), spring (8.3), nut (8.4)；Four film exemplar folders
Piece group sets up separately in pairs outside the rear and front end of negative conductive rubber slab, with screw rod of film exemplar intermediate plate group of group or so pair
It sets, the stepped counterbore (1.2) that the lower end of screw rod passes through on insulating base is connected with nut fine thread afterwards；Spring pocket is in screw rod
On, the lower end of spring is fallen in the macropore of stepped counterbore upper end；
Clamping device includes press strip (9.1), press strip installing arm (9.2), operation arm (9.3), pedestal (9.4)；Clamping device is total
Two sets；Two pedestals or so are opposed to outside the left and right edges for being located at negative conductive rubber slab；Two press strips are front and back trend and are located at
The top of positive inserts pressing plate is simultaneously connected with one end of press strip installing arm；The other end of press strip installing arm simultaneously and operation arm,
Pedestal is hinged, and middle-end and the pedestal for operating arm are hinged；
When detection, the lower surface of positive inserts and the lower surface of intermediate plate respective end press against the upper table of film exemplar corresponding site
On face.
2. thin-film electro weakness detector according to claim 1, it is characterized in that: further including having two scales (10)；Insulation
The scale moved towards there are two left and right is set on bottom plate (1) places deep gouge (1.3)；Two scales placements deep gouge (1.3) are located at and lead
Electric rubber slab is placed outside the forward and backward hole side in hole (1.1) and is respectively positioned on the front of corresponding two stepped counterbores (1.2)；Scale
(10) thickness is less than or equal to the depth that scale places deep gouge (1.3).
3. thin-film electro weakness detector according to claim 1, it is characterized in that: further including having transparent shield (11), thoroughly
The front end of bright shield (11) is equipped with a cathode copper bar and passes through notch (11.2) by notch (11.1) and a positive copper bar；
The lower edge of the side wall of transparent shield (11) and the periphery of insulating base (1) are fixedly connected with.
4. thin-film electro weakness detector according to claim 1 is used for it is characterized in that: insulating base (1) is equipped with two pieces
The convex block (1.4) being connected with pedestal (9.4), the lower end of pedestal (9.4) and convex block (1.4) are fixed together.
5. thin-film electro weakness detector according to claim 1, it is characterized in that: the anode inserts pressing plate (6) is conduction
Pressing plate, the rear end of positive copper bar (7) and positive inserts pressing plate (6) are connected, and the lower surface of the rear end of positive copper bar (7) and anode are embedding
The upper face of part pressing plate (6) is electrically connected；It further include having clamping device rubber pad (9.5), clamping device rubber pad (9.5) and press strip
(9.1) it is fixed together to form combination press strip, the lower surface of clamping device rubber pad (9.5) is located at the lower section of press strip (9.1).
6. thin-film electro weakness detector according to claim 1, it is characterized in that: press strip (9.1) and press strip installing arm (9.2)
Between be equipped with press strip link structure (9.6), press strip link structure (9.6) includes middle brace rod (9.61) and locking nut
(9.62)；The upper and lower side of middle brace rod is formed with fine thread, and the middle-end of middle brace rod (9.61), which is equipped among rotation, to be connected
The structure of extension bar, after the upper end of middle brace rod passes through on press strip installing arm (9.2), left and right trend slot (9.21)
Middle brace rod (9.61) and press strip installing arm (9.2) is threadedly coupled to be connected together with locking nut (9.62)；In
Between connecting rod lower end and press strip (9.1) in the middle part of be threadedly coupled, so that middle brace rod (9.61) is mutually connected in press strip (9.1)
Together；Press strip (9.1) and press strip installing arm (9.2) are pacified by the press strip link structure (9.6) realization press strip (9.1) and press strip
The one end for filling arm (9.2) is connected.
7. thin-film electro weakness detector according to claim 1, it is characterized in that: insulating base 1) it is additionally provided with positive inserts pressure
Plate positioning column (1.5).
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