CN114624477A - Flat cable skin breaking device, voltage measuring assembly and measuring method - Google Patents
Flat cable skin breaking device, voltage measuring assembly and measuring method Download PDFInfo
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- CN114624477A CN114624477A CN202210202846.8A CN202210202846A CN114624477A CN 114624477 A CN114624477 A CN 114624477A CN 202210202846 A CN202210202846 A CN 202210202846A CN 114624477 A CN114624477 A CN 114624477A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06705—Apparatus for holding or moving single probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a flat cable splitting device, a voltage measuring assembly and a measuring method, wherein the splitting device comprises two clamping plates which are arranged opposite to each other, and a conducting assembly is arranged on each clamping plate; the conduction assembly comprises a mounting seat, a measuring pin and a feeding assembly; each switches on the subassembly and passes through the mount pad to be installed on splint, and the subassembly that switches on arbitrary splint is: the probe can extend and retract relative to the clamping plate under the action of the feeding assembly relative to one side of the clamping plate close to the other clamping plate, the specific extending displacement meets the requirement that the probe can pierce the surface insulation layer of the flat cable, and the specific retracting displacement meets the requirement that the probe can withdraw from the surface insulation layer of the flat cable; the extension length of the measuring needle is linearly adjustable. The voltage measuring assembly and the measuring method are realized based on the skin breaking device. The technical scheme that this scheme of adoption provided not only can be used to carry out the direct measurement to voltage between the last copper foil layer of flat cable, has the characteristics that have the guard action to flat cable itself simultaneously.
Description
Technical Field
The invention relates to the technical field of cable measurement, in particular to a flat cable skin breaking device, a voltage measurement assembly and a measurement method.
Background
As disclosed in patent application documents CN201611131906.2, cn201410014012.x and the like, in the prior art, a flat cable is widely used in initiating explosive device tests and initiating systems, and specifically, the flat cable is used as a cable for inputting initiating energy, taking a detonator as an example, so that the detonator obtains sufficient energy input through the flat cable, and finally, the detonator is initiated.
As a common form of flat cable, the cross section of the flat cable is a flat layered structure, and generally includes, from one side to the other side, on a layered structure formed in the thickness direction of the flat cable: insulating layer, copper foil layer, insulating layer (two-layer copper foil layer and three-layer insulation layer), among the above layer structure, the conductor part on the flat cable is regarded as to the copper foil layer, among the three-layer insulation layer, the two-layer top insulating layer as flat cable of both sides, and the insulating isolation layer between the middle insulation layer conduct copper foil layer, and the concrete material of insulating layer is common to be polyimide. While flat cables are specifically used as: the two copper foil layers form a current loop on the flat cable.
In the process of initiating explosive device test and the working process of an initiation system, the voltage between the copper foil layers is directly related to the initiation voltage, so that a reasonable device and method for measuring the voltage between the copper foil layers are provided, and the device and method have positive significance for explosion test development, initiation system debugging, monitoring and the like.
Disclosure of Invention
Aiming at the technical problems that the reasonable device and method for measuring the voltage between the copper foil layers on the flat cable have positive significance on the development of explosion tests, the debugging and monitoring of an explosion initiation system and the like, the invention provides a flat cable skin breaking device, a voltage measuring assembly and a measuring method. The technical scheme that this scheme of adoption provided not only can be used to carry out direct measurement to voltage between the last copper foil layer of flat cable, has the characteristics that have the guard action to flat cable itself simultaneously.
Aiming at the problems, the flat cable skin breaking device, the voltage measuring assembly and the measuring method provided by the invention solve the problems through the following technical key points: the flat cable splitting device comprises two clamping plates which are arranged opposite to each other, and a conducting assembly is arranged on each clamping plate;
the conduction assembly comprises a mounting seat, a measuring pin which is arranged on the mounting seat and is a conductor, and a feeding assembly for driving the measuring pin to move along the length direction of the measuring pin;
each switches on the subassembly and passes through the mount pad to be installed on splint, and the subassembly that switches on arbitrary splint is: the probe can extend and retract relative to the clamping plate under the action of the feeding assembly relative to one side of the clamping plate close to the other clamping plate, the specific extending displacement meets the requirement that the probe can pierce the surface insulation layer of the flat cable, and the specific retracting displacement meets the requirement that the probe can withdraw from the surface insulation layer of the flat cable;
the extension length of the measuring needle is linearly adjustable.
In the prior art, a flat cable is widely applied to the situation that a detonation system transmits detonation energy to an impact sheet detonator, and is limited by the structural form of the flat cable, and the voltage on a copper foil layer is not directly measured in the prior art by applying a direct current multimeter for measuring the voltage on the copper foil layer. The specific detection means generally have two types: the current value measured by the clamp meter is converted to obtain a required voltage value, the measuring device at the pulse current generating end is used for measuring the required voltage value, the instantaneous voltage value is obtained by the first mode through measurement and conversion, errors are introduced in the conversion process, the difference between the conversion result and the actual value is large, and meanwhile, the voltage value at a certain moment can only be obtained through handheld operation; in the second mode, because a flat cable exists between the pulse current generation end and the powered device (such as a shock sheet detonator), when the length of the flat cable is long and particularly under the condition that an interface exists, the deviation between the obtained voltage value and the actual detonation voltage is large. Therefore, in the prior art, according to the voltage measurement requirement, the problems that the voltage measurement is relatively troublesome, the measurement position on the flat cable cannot be flexibly selected according to the requirement, and the measurement result has larger deviation exist.
This scheme generally includes the concrete structural feature of two-layer copper foil layer and three-layer insulating layer according to flat cable, the utility model provides one kind can be convenient realize voltage direct measurement at flat cable length direction optional position selection voltage measurement point, can effectively avoid simultaneously being in the measuring process between the copper foil layer insulating layer to be punctureed, lead to flat cable by the short circuit, measuring process leads to the copper foil layer to be excessively destroyed technical scheme, be convenient for simultaneously accomplish and realize voltage continuous measurement on the pressure measurement point that flat cable selected, with the continuous variation condition of objective reaction voltage.
Specifically, this scheme is when specifically using, and two splint can be under the effect of block subassembly above, and the flat cable centre gripping of selecting the position is between splint, then, through feed subassembly drive survey pin stretches out for place splint, behind the insulating layer on survey pin puncture flat cable top layer, can accomplish the measuring apparatu that is used for measuring voltage through the survey pin and be connected with the electricity on copper foil layer, and concrete method can adopt:
one of the two terminals of the measuring instrument is connected with the measuring pin of the conduction assembly on one clamping plate, and the other terminal is connected with the measuring pin of the conduction assembly on the other clamping plate;
further and more specific operating steps are:
s1, clamping the flat cable between two clamping plates;
s2, driving the probe on the clamping plate to extend out by using the feeding assembly, so that the probe pierces through the surface insulation layer of the flat cable;
wherein the measuring pin on one clamping plate penetrates into the surface insulating layer from the front surface of the flat cable, and the measuring pin on the other clamping plate penetrates into the surface insulating layer from the back surface of the flat cable;
and S3, measuring the voltage value between the two copper foil layers on the flat cable by using the electric connection relationship between different measuring pins and different copper foil layers and the electric connection relationship between the measuring instrument and the measuring pins.
In this scheme, because the extension length linear adjustable of survey needle, so the survey needle is utilized and is: can puncture surface insulation layer, and can be in the back of the contact by oneself at probe and copper foil layer, stop further drive probe promptly, avoid the probe to puncture the copper foil layer and cause the copper foil layer to be excessively destroyed even puncture intermediate insulation layer and lead to the flat cable to be punctured by short circuit or intermediate insulation layer, utilize the measuring apparatu and pass through the probe transition this moment, can directly accomplish the voltage measurement between the copper foil layer at the measuring point of choosing on the flat cable, can not continuous measurement the voltage variation condition on the flat cable in a period, be unfavorable for only managing its voltage continuous variation condition in the reaction flat cable course of operation.
When the scheme is implemented specifically, the clamp and the assembly can be common parts with clamping and restraining functions, and specifically can be a clamp body, a hoop body and the like.
Meanwhile, as a person skilled in the art, the linear adjustability of the extension length of the stylus is actually a further limitation on the feeding assembly, and in the prior art, the stylus driving function can be realized and the purpose of linear adjustability of the extension length can be met by the feeding assembly driven manually, the electrically driven feeding assembly and the hydraulically or pneumatically driven feeding assembly.
When concrete implementation, because the common insulating layer material of flat cable and thickness, it is relatively easy that the survey needle pierces through surface insulation layer, for the global design of simplifying the broken skin device and realize miniaturized design, it can to feed the form that the subassembly adopted artifical manual drive.
The linear adjustable structure basis of guaranteeing that flat cable is destroyed of the length of extension of above survey needle, at specific application in-process, need be according to the displacement of stretching out of the concrete surface insulation layer thickness control survey needle of flat cable, surface insulation layer thickness accessible flat cable's concrete model parameter directly obtains, adopt and obtain the direct measurement of same type flat cable, when concrete implementation, according to the surface insulation layer thickness that obtains, and direct or indirect sign portion that embodies survey needle length of extension through setting up guides and feeds subassembly work and can reach the purpose of control survey needle feed volume. More specifically, if the following nut is adopted to drive the compression rod to rotate, and the scheme that the compression rod is fed and pushed to extrude the extension of the measuring pin is realized by utilizing the thread lead, scales can be arranged on the periphery of the nut to serve as the identification part, and the extrusion amount of the compression rod is calibrated by utilizing the rotation angle of the nut; the pressing rod protrudes outwards relative to the nut, and scales are arranged in the length direction of the part, protruding out relative to the nut, of the pressing rod and serve as the feeding amount of the marking pressing rod of the marking part. Since the specific form of the feeding assembly is not limited to the solution including the nut and the pressing rod as set forth below, when the probe and the pressing rod cannot advance or retreat synchronously, the determination of the extending length of the probe may be affected by the gap between the probe and the pressing rod and the initial position of the probe, and in order to solve these problems, the initial position of the front end of the probe may be measured before the clamping plate clamps the flat cable in consideration of the gap. As an equivalent solution, a solution that the number of the conducting components on each splint is set to be greater than or equal to 2 is adopted, a single copper foil layer is used as a component of the conducting path, and for any copper foil layer, after two measuring pins on any splint are contacted with the copper foil layer, the measuring pins are guided to be fed or extended according to the point conducting relationship established between the two measuring pins.
The further technical proposal of the flat cable skin breaking device is as follows:
as described above, as an implementation scheme for implementing the judgment basis of the contact between the probe and the copper foil layer by using the single-layer copper foil layer as the electrically conductive path, the following is set: the number of conducting assemblies on each clamping plate is greater than or equal to 2. The specific use method of the scheme is as follows: after the flat cable is clamped by the clamping plate, the thickness of the surface insulating layer at each position of the flat cable is consistent, the measuring pins on any two conduction assemblies are synchronously inserted into the surface insulating layer under the action of the respective feeding assemblies, and when the two measuring pins are judged to establish an electric conduction relationship through the copper foil layer through the measuring tool, the measuring pins can be used as a trigger basis for stopping the feeding assembly. When concrete implementation, switch on the subassembly and can set up to be independent relation each other on each splint, the working method that the survey needle adopted the multistage to feed specifically is: and after the feeding in the set stage is finished and the extension amounts of the two measuring pins are consistent, determining whether the measuring pins are conducted or not, if the measuring pins are conducted, stopping feeding of the measuring pins, if the measuring pins are not conducted, conducting feeding in the next stage, and repeating the process until the measuring pins are contacted with the copper foil layer. The measuring probe can also be arranged to be in feeding association on each conducting assembly, if two conducting assemblies selected for use comprise a shared driving gear, a linkage mechanism is arranged between the driving gear and the measuring probe on each conducting assembly, the linkage mechanism is used for converting the rotary motion of the driving gear into the telescopic motion of the measuring probe, the driving gear rotates to drive the two measuring probes to synchronously stretch out and draw back, the electric conduction condition of the two measuring probes is measured in real time through a measuring tool, after the conduction detection result appears, the driving gear stops rotating immediately, and the measuring probe stretches out to be in contact with the copper foil layer and cannot penetrate into the copper foil layer too much at the moment.
As described above, in consideration of the thickness and material of the surface insulating layer, it is preferable to adopt a manually operated feeding assembly, as a feeding assembly which can be used as a feedback force according to the contact force between the stylus and the surface insulating layer to indicate whether the stylus is inserted into the surface insulating layer by the pressing of the slope and the surface insulating layer as follows: the front end of the measuring needle is provided with a slope surface, and a tip is formed at the end part of the front end of the measuring needle through the slope surface. In the scheme, the center facilitates the probe to penetrate into the surface insulating layer, and along with the center entering the surface insulating layer, the probe resistance caused by the slope surface is obviously increased, so that the probe penetration condition can be used. In specific implementation, in order to ensure that the pressure between the slope surface and the surface insulating layer can not only ensure that the measuring needle can be smoothly inserted and the contact force is obvious, but also ensure that the insertion difficulty is not too large, the slope surface can be arranged to form an included angle of 20-40 degrees with the telescopic direction of the measuring needle.
As a specific arrangement form of the conducting component, it is set as follows: the mounting seat is a columnar structure, one end of the mounting seat is fixedly connected with the clamping plate, and a through hole is formed in the mounting seat;
the through hole is internally provided with a guide sleeve, the measuring probe is embedded in the guide sleeve, and the measuring probe is constrained to slide along the length direction of the guide sleeve through the action of the side wall and the central hole of the guide sleeve;
the feeding assembly comprises a pressing rod and a pushing mechanism arranged on the mounting seat, the pushing mechanism is used for driving the pressing rod to reciprocate along the length direction of the pressing rod, and the feeding assembly pushes the measuring needle to extend out through the acting force applied to the measuring needle by the pressing rod. In the concrete structural style of this scheme, realize through the uide bushing that the fixed of stylus on the mount pad is regarded as the spacer of stylus and mount pad simultaneously, if set up to the uide bushing for wear-resisting metal cylinder, mount pad for the plastics of insulating material, not only can promote the safety in utilization of this device, make simultaneously to have reliable direction precision to the stylus. Simultaneously this scheme provides a concrete subassembly realization form that feeds, promptly: the pushing mechanism drives the pressing rod to move along the length direction of the pressing rod, so that acting force is applied to the measuring needle to push the measuring needle to extend out.
More specifically: the pushing mechanism is a nut which is arranged on the mounting seat, is fixed relative to the mounting seat in position and can rotate around the axis of the pressure rod;
the pressure bar is a threaded rod in threaded connection with the nut. This scheme provides an adopt vice drive depression bar linear motion's of screw thread technical scheme, and this scheme is when concrete use, through rotatory nut, can utilize the connecting thread between nut and the depression bar to reach the purpose of drive depression bar motion. The implementation mode has the characteristics of simple structure, small size, light weight, high adjustable precision of the extension length of the pressure rod and capability of realizing self-locking by utilizing threads.
Set up to metal material etc. through going up the subassembly that will switch on as one kind to promote this device life, can insulate the protection in order to promote this device safety in utilization to inboard measuring needle simultaneously, make this device be convenient for accomplish simultaneously with as follows the technical scheme that the measuring apparatu electricity is connected sets up to: the mounting seat is made of plastic, and the nut is mounted on the mounting seat through a rolling bearing;
the screw cap and the pressure lever are made of metal, and the guide sleeve is made of a conductive material;
the insulation component is arranged between the pressure rod and the measuring pin;
the device also comprises a binding post which is arranged on the mounting seat and one end of which is contacted with the guide sleeve. In the scheme, the mounting seat is used as an exposed part and is made of plastic, so that the mounting seat is an insulator; the rolling bearing, the nut and the compression bar are made of materials for ensuring that the nut can keep good rotation precision for a long time; the guide sleeve and the wiring terminal are convenient for establishing electric connection between the measuring pin and the measuring instrument, and when the measuring instrument is used specifically, the wiring terminal of the measuring instrument is connected to the wiring terminal; the insulating assembly is used as an insulating isolating piece and a force transmission intermediate piece between the measuring pin and the pressure rod in the process of extruding the measuring pin by the pressure rod.
In order to ensure the reliability of the contact between the measuring pin and the copper foil layer, the method comprises the following steps: and the mounting seat is also provided with a locking device for locking the extending state of the measuring pin. Aiming at the structure form of the conduction assembly, the locking device can adopt a compression screw which is arranged on the mounting seat, and the purpose of locking the extending state can be achieved by directly locking a nut and/or a measuring pin.
As an accessible inject the contact area of flat cable on splint clamping face, guarantee that the splint carry out reliable centre gripping to flat cable, the technical scheme of the validity is punctured in order to guarantee the measuring needle in flat cable width direction's position to the control measuring needle simultaneously, sets up to: at least one clamping plate is as follows: a groove is arranged on one side of the clamping plate close to the other clamping plate;
the two ends of the groove extend to the side faces of the clamping plates to be connected, and the width of the groove is consistent with that of the flat cable. When the scheme is used specifically, the use is as follows: the flat cable passes the centre gripping space between the splint along the length direction of recess and with the mode in the embedding recess, because the position of recess on splint is certain, switches on the position of subassembly on splint certain, like this, can guarantee not only that the flat cable centre gripping is reliable, steerable survey probe is in flat cable width direction's position simultaneously. Further, set up the foil gage on the splint of recess bottom side or recess offside, the foil gage is used for measuring the splint to the size of flat cable clamping-force to avoid because splint lead to the surperficial insulating layer attenuation back survey needle to pierce into the copper foil layer too deeply to the excessive centre gripping of flat cable, when concrete implementation, set up to the foil gage flushes with the place installation face, when adopting the surperficial insulating layer thickness that obtains to feed as the survey needle, can avoid because the foil gage supports the flat cable that flat cable leads to and buckles and cause the survey needle to pierce depth precision and reduce.
The scheme also discloses a flat cable voltage measuring assembly which comprises a measuring instrument for measuring voltage and the skin breaking device;
one of the two terminals of the measuring instrument is connected with the measuring pin of the conduction assembly on one clamping plate, and the other terminal is connected with the measuring pin of the conduction assembly on the other clamping plate. The voltage measurement assembly is used for the specific application of the skin breaking device in voltage measurement between copper foil layers of the flat cable.
The scheme also discloses a voltage measurement method of the flat cable, which adopts the measurement component to complete the voltage measurement between the copper foil layers on the flat spot and the half part;
the measuring method comprises the following steps:
s1, clamping the flat cable between two clamping plates;
s2, driving the probe on the clamping plate to extend out by using the feeding assembly, so that the probe pierces through the surface insulation layer of the flat cable;
wherein the measuring pin on one clamping plate penetrates into the surface insulating layer from the front surface of the flat cable, and the measuring pin on the other clamping plate penetrates into the surface insulating layer from the back surface of the flat cable;
and S3, measuring the voltage value between the two copper foil layers on the flat cable by using the electric connection relationship between different measuring pins and different copper foil layers and the electric connection relationship between the measuring instrument and the measuring pins. The scheme is a specific method for applying the voltage measuring device to the voltage measurement between the copper foil layers of the flat cable.
The invention has the following beneficial effects:
this scheme generally includes the concrete structural feature of two-layer copper foil layer and three-layer insulating layer according to flat cable, provides one kind can be convenient select the voltage measurement point at flat cable length direction optional position and realize voltage direct measurement, can effectively avoid the insulating layer that is in between the copper foil layer in the measurement process to be punctureed simultaneously, leads to flat cable to be shortened circuit, measurement process leads to the copper foil layer to be excessively destroyed technical scheme.
In this scheme, because the extension length of survey needle is linear adjustable, so the survey needle is utilized and is: the surface insulating layer can be punctured, the probe is stopped from being further driven after the probe is in contact with the copper foil layer, the situation that the probe punctures the copper foil layer to cause the copper foil layer to be excessively damaged or even to puncture the middle insulating layer to cause the flat cable to be short-circuited or the middle insulating layer to be punctured is avoided, and the voltage measurement between the copper foil layers can be directly completed by the measuring point selected on the flat cable through the transition of the probe by utilizing the measuring instrument.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a flat cable stripping device according to the present invention;
fig. 2 is a sectional view of a conducting assembly in an embodiment of the flat cable stripping device of the present invention. The labels in the figure are respectively: 1. flat cable, 2, splint, 3, switch on subassembly, 4, sign portion, 5, feed subassembly, 6, block subassembly, 7, survey pin, 8, terminal, 9, depression bar, 10, nut, 11, mount pad, 12, housing screw, 13, insulating assembly, 14, antifriction bearing, 15, uide bushing, 16, domatic.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
example 1:
as shown in fig. 1 and 2, the flat cable stripping device comprises two clamping plates 2 which are arranged opposite to each other, and a conduction assembly 3 is arranged on each clamping plate 2;
the conduction assembly 3 comprises a mounting seat 11, a measuring pin 7 which is a conductor and is mounted on the mounting seat 11, and a feeding assembly 5 for driving the measuring pin 7 to move along the length direction of the measuring pin 7;
each switches on subassembly 3 and installs on splint 2 through mount pad 11, and the subassembly 3 that switches on arbitrary splint 2 is: the probe can extend and retract relative to the clamping plate 2 under the action of the feeding assembly 5 relative to one side of the clamping plate 2 close to the other clamping plate 2, the specific extending displacement meets the condition that the probe 7 can pierce the surface insulating layer of the flat cable 1, and the specific retracting displacement meets the condition that the probe 7 can withdraw from the surface insulating layer of the flat cable 1;
the extension length of the measuring needle 7 is linearly adjustable.
In the prior art, the flat cable 1 is widely used for transmitting initiation energy to an impact sheet detonator by an initiation system, and is limited by the structural form of the flat cable 1, and the voltage on a copper foil layer is not directly measured in the prior art by applying a direct current multimeter for measuring the voltage on the copper foil layer. Depending on the voltage measurement requirements, there are problems that the voltage measurement is relatively troublesome, and that the measurement position on the flat cable 1 cannot be flexibly selected as required, resulting in a large deviation of the measurement value.
This scheme generally includes the concrete structural feature of two-layer copper foil layer and three-layer insulating layer according to flat cable 1, provides one kind can be convenient 1 length direction optional position selection voltage measurement point of flat cable and realizes voltage direct measurement, can effectively avoid the insulating layer that is in between the copper foil layer to be punctureed simultaneously in the measurement process, leads to flat cable 1 to be shortened circuit, measurement process leads to the copper foil layer by the technical scheme of excessive destruction.
Specifically, this scheme when specifically using, two splint 2 can be under the effect of block subassembly 6, the flat cable 1 centre gripping of selecting the position between splint 2 above, then, through feed subassembly 5 drive survey probe 7 and stretch out for place splint 2, after survey probe 7 punctures the insulating layer on flat cable 1 top layer, can accomplish the measuring apparatu that is used for measuring voltage through survey probe 7 and be connected with the electricity on copper foil layer, and concrete method can adopt:
one of the two terminals of the measuring instrument is connected with a measuring pin 7 of the conducting component 3 on one clamping plate 2, and the other terminal is connected with a measuring pin 7 of the conducting component 3 on the other clamping plate 2;
further and more specific operating steps are:
s1, clamping the flat cable 1 between the two clamping plates 2;
s2, driving the measuring pins 7 on the clamping plate 2 to extend by using the feeding assembly 5, so that the measuring pins 7 pierce through the surface insulation layer of the flat cable 1;
wherein, the measuring pin 7 on one clamping plate 2 penetrates into the surface insulating layer from the front side of the flat cable 1, and the measuring pin 7 on the other clamping plate 2 penetrates into the surface insulating layer from the back side of the flat cable 1;
and S3, the measuring instrument measures the voltage value between the two copper foil layers on the flat cable 1 by utilizing the electric connection relation between the different measuring pins 7 and the different copper foil layers and the electric connection relation between the measuring instrument and the measuring pins 7.
In this scheme, because the extension length of survey needle 7 is linear adjustable, so survey needle 7 is applied and is: can puncture top layer insulating layer, and can lean on the back at survey probe 7 and copper foil layer contact, stop further drive survey probe 7 promptly, avoid survey probe 7 to puncture the copper foil layer and cause the copper foil layer to be excessively destroyed even puncture intermediate insulation and lead to flat cable 1 to be punctured by short circuit or intermediate insulation, utilize the measuring apparatu and pass through survey probe 7 transition this moment, can directly accomplish the voltage measurement between the copper foil layer at the measuring point of choosing on flat cable 1.
When the scheme is implemented specifically, the clamp and the assembly can be common parts with clamping and restraining functions, and specifically can be a clamp body, a hoop body and the like.
Meanwhile, as a person skilled in the art, the linear adjustability of the protruding length of the stylus 7 is actually a further limitation on the feeding assembly 5, and in the prior art, no matter the feeding assembly 5 is manually driven, the driving function of the stylus 7 can be realized by the electrically driven feeding assembly 5 and the hydraulically or pneumatically driven feeding assembly 5, and the purpose of linear adjustability of the protruding length can be met.
When the concrete implementation, because the common insulating layer material and the thickness of flat cable 1, it is relatively easy that the survey pin 7 pierces through the surface insulation layer, for the global design of simplifying the broken skin device and realize miniaturized design, it can to adopt artifical manually-driven form to feed subassembly 5.
Above survey needle 7 stretch out length linear adjustable for the destroyed structure basis of guarantee flat cable 1, at the concrete application in-process, need according to the displacement that stretches out of the concrete top layer insulation layer thickness control survey needle 7 of flat cable 1, the concrete model parameter of top layer insulation layer thickness accessible flat cable 1 directly obtains, adopt and obtain the direct measurement of the same type flat cable 1, when concrete implementation, according to the top layer insulation layer thickness that obtains, and direct or indirect sign portion 4 that embodies survey needle 7 stretch out length through the setting guides and feeds subassembly 5 work and can reach the purpose that control survey needle 7 feed volume. More specifically, if the following nut 10 is adopted to drive the pressing rod 9 to rotate, and the scheme that the feeding of the pressing rod 9 is realized by utilizing the thread lead to push the extrusion measuring pin 7 to extend is adopted, scales can be arranged on the circumference of the nut 10 to serve as the identification part 4, and the rotation angle of the nut 10 is utilized to mark the extrusion amount of the pressing rod 9; the pressing rod 9 protrudes outwards relative to the nut 10, and scales are arranged in the length direction of the part, protruding out relative to the nut 10, of the pressing rod 9 and serve as the mark part 4 for marking the feeding amount of the pressing rod 9. Since the specific form of the feeding assembly 5 is not limited to the solution including the nut 10 and the pressing rod 9 as set forth below, when the probe 7 and the pressing rod 9 cannot advance and retreat synchronously, the determination of the extending length of the probe 7 may be affected by the gap between the probe 7 and the pressing rod 9 and the initial position of the probe 7, and in order to solve these problems, the initial position of the front end of the probe 7 may be measured before the clamping plate 2 clamps the flat cable 1 in consideration of the gap. As an equivalent solution, a solution that the number of the conducting assemblies 3 on each splint 2 is set to be greater than or equal to 2 may be adopted, a single copper foil layer is used as a component of the conducting path, and for any copper foil layer, after the two probes 7 on any splint 2 are contacted with the copper foil layer, the probes 7 are guided to be fed or extended according to the point conducting relationship established between the two probes 7.
Example 2:
this example is further refined on the basis of example 1:
as described above, as an implementation scheme for implementing judgment basis of contact between the probe 7 and the copper foil layer by using a single-layer copper foil layer as an electrically conductive path, the following is set: the number of the conducting assemblies 3 on each clamping plate 2 is more than or equal to 2. The specific application method of the scheme comprises the following steps: after the flat cable 1 is clamped by the clamping plate 2, the thickness of the surface insulating layer at each position of the flat cable 1 is consistent, the measuring pins 7 on any two conduction assemblies 3 are synchronously inserted into the surface insulating layer under the action of the respective feeding assemblies 5, and when the two measuring pins 7 are judged to establish an electric conduction relationship through the copper foil layer through a measuring tool, the measuring pins can be used as a trigger basis for stopping the feeding assemblies 5. When concrete implementation, the subassembly 3 that switches on can set up to be independent relation each other on each splint 2, and the working method that the survey needle 7 adopted the multistage to feed specifically is: and after the feeding in the set stage is finished and the extending amounts of the two measuring pins 7 are consistent, determining whether the measuring pins 7 are conducted, if the measuring pins 7 are conducted, stopping the feeding of the measuring pins 7, if the measuring pins are not conducted, conducting the feeding in the next stage, and repeating the processes until the measuring pins 7 are contacted with the copper foil layer. The measuring needle 7 on each conducting assembly 3 can be arranged to be associated with each other in a feeding mode, if two conducting assemblies 3 selected for use comprise a shared driving tooth, a linkage mechanism is arranged between the driving tooth and the measuring needle 7 on each conducting assembly 3, the linkage mechanism is used for converting the rotary motion of the driving tooth into the telescopic motion of the measuring needle 7, the driving tooth rotates to drive the two measuring needles 7 to stretch synchronously, meanwhile, the electric conduction condition of the two measuring needles 7 is measured in real time through a measuring tool, when a conduction detection result appears, the driving tooth stops rotating immediately, and the measuring needle 7 stretches out to be in contact with a copper foil layer and cannot penetrate into the copper foil layer too much.
Example 3:
this example is further refined on the basis of example 1:
as described above, in consideration of the thickness and material of the surface insulating layer, it is preferable to adopt the form of the manually operated feeding unit 5 as a feedback force for indicating whether the needle 7 penetrates the surface insulating layer by pressing the slope 16 against the surface insulating layer as follows: the front end of the measuring needle 7 is provided with a slope 16, and an apex is formed at the end part of the front end of the measuring needle 7 through the slope 16. In the scheme, the center facilitates the probe 7 to penetrate into the surface layer insulating layer, and along with the center entering the surface layer insulating layer, the resistance of the probe 7 caused by the slope 16 is obviously increased, so that the penetration condition of the probe 7 can be used, and the scheme is particularly suitable for the condition that the feeding assembly 5 comprises the pressing rod 9 and the pressing rod 9 is not directly connected with the probe 7. In specific implementation, in order to enable the pressure between the slope 16 and the surface insulating layer to not only enable the probe 7 to be smoothly inserted, but also enable the contact force to be obvious and not to cause too large insertion difficulty, the slope 16 may be arranged to form an included angle of 20 ° to 40 ° with the extension direction of the probe 7.
Example 4:
this example is further refined on the basis of example 1:
as a specific arrangement form of the conducting component 3, it is configured as follows: the mounting seat 11 is a columnar structure with one end fixedly connected with the clamping plate 2 and provided with a through hole;
a guide sleeve 15 is installed in the through hole, the measuring probe 7 is embedded in the guide sleeve 15, and the measuring probe 7 is constrained to slide along the length direction of the guide sleeve 15 through the action of the side wall and the central hole of the guide sleeve 15;
the feeding assembly 5 comprises a pressing rod 9 and a pushing mechanism arranged on the mounting base 11, the pushing mechanism is used for driving the pressing rod 9 to reciprocate along the length direction of the pressing rod 9, and the feeding assembly 5 pushes the measuring needle 7 to extend out through acting force applied to the measuring needle 7 by the pressing rod 9. In the concrete structure form of this scheme, realize the fixed simultaneously as the spacer of survey needle 7 and mount pad 11 of survey needle 7 on mount pad 11 through uide bushing 15, if set up to uide bushing 15 for wear-resisting metal cylinder, mount pad 11 for the plastics of insulating material, not only can promote the safety in utilization of this device, make simultaneously to have reliable direction precision to survey needle 7. Simultaneously this scheme provides a concrete subassembly 5 implementation form that feeds, promptly: the pushing mechanism drives the pressing rod 9 to move along the length direction of the pressing rod 9, so that acting force is applied to the measuring needle 7 to push the measuring needle 7 to extend.
More specifically: the pushing mechanism is a nut 10 which is arranged on the mounting seat 11, is fixed relative to the mounting seat 11 in position and can rotate around the axis of the compression bar 9;
the pressure lever 9 is a threaded rod in threaded connection with the nut 10. This scheme provides an adopt vice drive depression bar 9 linear motion's of screw thread technical scheme, and this scheme is when specifically using, through rotatory nut 10, can utilize the connecting thread between nut 10 and the depression bar 9 to reach the purpose of drive depression bar 9 motion. The realization mode has the characteristics of simple structure, small size, light weight, high adjustable precision of the extending length of the pressure rod 9 and self-locking realization by utilizing threads.
Set up to metal material etc. through going up transmission part through will switch on subassembly 3 as one kind to promote this device life, can insulate protection in order to promote this device safety in utilization to inboard probe 7 simultaneously, make this device be convenient for accomplish simultaneously with as follows the technical scheme that the measuring apparatu electricity is connected sets up to: the mounting seat 11 is made of plastic, and the screw cap 10 is mounted on the mounting seat 11 through a rolling bearing 14;
the screw cap 10 and the pressure lever 9 are made of metal, and the guide sleeve 15 is made of conductive material;
the insulation component 13 is arranged between the pressure rod 9 and the measuring needle 7;
the device also comprises a binding post 8 which is arranged on the mounting seat 11 and one end of which is contacted with the guide sleeve 15. In the scheme, the mounting seat 11 is used as an exposed part and is made of plastic, so that the mounting seat is an insulator; the rolling bearing 14, the nut 10 and the compression bar 9 are made of materials for ensuring that the nut 10 can keep good rotation precision for a long time; the guide sleeve 15 and the binding post 8 are convenient for establishing the electric connection between the measuring pin 7 and the measuring instrument, and when the measuring instrument is used specifically, the wiring end of the measuring instrument is connected to the binding post 8; the insulating assembly 13 is used as an insulating spacer and a force transmission intermediate piece between the measuring pin 7 and the pressure rod 9 when the pressure rod 9 extrudes the measuring pin 7.
Example 5:
this example is further refined on the basis of example 1:
in order to ensure the reliability of the contact between the probe 7 and the copper foil layer, the method comprises the following steps: and the mounting seat 11 is also provided with a locking device for locking the extending state of the measuring pin 7. In view of the above-mentioned structure of the conducting assembly 3, the locking device may employ a compression screw 12, the compression screw 12 is mounted on the mounting seat 11, and the extended state locking may be achieved by directly locking the nut 10 and/or the stylus 7.
Example 6:
this example is further refined on the basis of example 1:
as a accessible inject the flat cable 1 in the clamping area of splint 2 on, guarantee that splint 2 carries out reliable centre gripping to flat cable 1, control the technical scheme that the position of stylus 7 in the flat cable 1 width direction simultaneously is in order to guarantee that stylus 7 pierces the validity, set up as: at least one clamping plate 2 is: a groove is arranged on one side of the clamping plate 2 close to the other clamping plate 2;
the both ends of recess all extend to and meet with the side of splint 2, and the width of recess is unanimous with the width of flat cable 1. When the scheme is used specifically, the use is as follows: the flat cable 1 passes through the centre gripping space between the splint 2 along the length direction of recess and with the mode of embedding in the recess, because the position of recess on splint 2 is certain, switches on the position of subassembly 3 on splint 2 and is certain, like this, can guarantee not only that the flat cable 1 centre gripping is reliable, the position of steerable survey needle 7 in flat cable 1 width direction simultaneously. Furthermore, set up the foil gage on the splint 2 of recess bottom side or recess offside, the foil gage is used for measuring the splint 2 to the size of flat cable 1 clamping-force to avoid because splint 2 leads to the over centre gripping of surface insulation layer attenuation back measuring pin 7 to pierce the copper foil layer too deeply to flat cable 1, when concrete implementation, set up to the foil gage flushes with the installation face that is located, when adopting the surface insulation layer thickness that obtains to feed as measuring pin 7 according to, can avoid causing measuring pin 7 to pierce the degree of depth precision reduction because flat cable 1 that foil gage support flat cable 1 leads to buckles.
Example 7:
in this embodiment, on the basis of embodiment 1, a flat cable voltage measuring assembly is provided, which includes a measuring instrument for measuring voltage, and further includes the skin breaking device described in embodiment 1;
one of the two terminals of the measuring instrument is connected with the measuring pin 7 of the conduction assembly 3 on one clamping plate 2, and the other terminal is connected with the measuring pin 7 of the conduction assembly 3 on the other clamping plate 2. The voltage measurement assembly is used for the specific application of the skin breaking device in voltage measurement between copper foil layers of the flat cable 1.
Example 8:
this example provides a method for measuring voltage of a flat cable based on example 7, which uses the measuring assembly described in example 7 to measure voltage between copper foil layers on a flat spot;
the measuring method comprises the following steps:
s1, clamping the flat cable 1 between two clamping plates 2;
s2, driving the measuring pin 7 on the clamping plate 2 to extend by using the feeding assembly 5, so that the measuring pin 7 pierces through the surface insulation layer of the flat cable 1;
wherein, the measuring pin 7 on one clamping plate 2 penetrates into the surface insulating layer from the front side of the flat cable 1, and the measuring pin 7 on the other clamping plate 2 penetrates into the surface insulating layer from the back side of the flat cable 1;
and S3, measuring the voltage value between the two copper foil layers on the flat cable 1 by using the electric connection relationship between different measuring pins 7 and different copper foil layers and the electric connection relationship between the measuring instrument and the measuring pins 7 by the measuring instrument. The scheme is a specific method for applying the voltage measuring device to the voltage measurement between the copper foil layers of the flat cable 1.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. Other embodiments that can be derived by a person skilled in the art without departing from the scope of the present invention are also intended to be included within the scope of the present invention.
Claims (10)
1. The flat cable splitting device is characterized by comprising two clamping plates (2) which are arranged oppositely, and a conducting assembly (3) is arranged on each clamping plate (2);
the conducting assembly (3) comprises a mounting seat (11), a measuring pin (7) which is arranged on the mounting seat (11) and is a conductor, and a feeding assembly (5) for driving the measuring pin (7) to move along the length direction of the measuring pin (7);
each switches on subassembly (3) and installs on splint (2) through mount pad (11), switches on subassembly (3) on arbitrary splint (2) and is: the probe (7) can extend and retract relative to the clamping plate (2) under the action of the feeding assembly (5) relative to one side of the clamping plate (2) close to the other clamping plate (2), the specific extending displacement meets the condition that the probe (7) can pierce the surface insulating layer of the flat cable, and the specific retracting displacement meets the condition that the probe (7) can withdraw from the surface insulating layer of the flat cable;
the extension length of the measuring needle (7) is linearly adjustable.
2. Flat cable stripping device according to claim 1, characterized in that the number of conducting assemblies (3) on each clamping plate (2) is greater than or equal to 2.
3. The flat cable stripping device according to claim 1, characterized in that the front end of the measuring pin (7) has a ramp (16), by means of which ramp (16) an apex is formed at the end of the front end of the measuring pin (7).
4. The flat cable stripping device according to claim 1, characterized in that the mounting seat (11) is a cylindrical structure with one end fixedly connected with the clamping plate (2) and provided with a through hole;
a guide sleeve (15) is installed in the through hole, the measuring pin (7) is embedded in the guide sleeve (15), and the measuring pin (7) is constrained to slide along the length direction of the guide sleeve (15) through the action of the side wall and the central hole of the guide sleeve (15);
the feeding assembly (5) comprises a pressing rod (9) and a pushing mechanism arranged on the mounting seat (11), the pushing mechanism is used for driving the pressing rod (9) to reciprocate along the length direction of the pressing rod (9), and the feeding assembly (5) pushes the measuring needle (7) to extend out through acting force applied to the measuring needle (7) by the pressing rod (9).
5. The flat cable stripping device according to claim 4, characterized in that the pushing mechanism is a nut (10) mounted on the mounting base (11), fixed in position relative to the mounting base (11), and rotatable about the axis of the pressure bar (9);
the pressure lever (9) is a threaded rod in threaded connection with the nut.
6. The flat cable stripping device according to claim 5, characterized in that the mounting base (11) is made of plastic, and the nut (10) is mounted on the mounting base (11) through a rolling bearing (14);
the screw cap (10) and the pressure lever (9) are made of metal, and the guide sleeve (15) is made of conductive material;
the insulation component (13) is arranged between the pressure lever (9) and the measuring needle (7);
the device also comprises a binding post (8) which is arranged on the mounting seat (11) and one end of which is contacted with the guide sleeve (15).
7. The flat cable stripping device as claimed in claim 1, characterized in that the mounting base (11) is also provided with a locking device for locking the extended state of the measuring pin (7).
8. Flat cable stripping device according to one of claims 1 to 7, characterized in that at least one clamping plate (2) is: a groove is arranged on one side of the clamping plate (2) close to the other clamping plate (2);
the two ends of the groove extend to the side faces of the clamping plates (2) to be connected, and the width of the groove is consistent with that of the flat cable.
9. A flat cable voltage measuring assembly comprising a measuring instrument for measuring voltage, characterized by further comprising a splitting device according to any one of claims 1 to 8;
one of the two terminals of the measuring instrument is connected with a measuring pin (7) of the conducting component (3) on one clamping plate (2), and the other terminal is connected with a measuring pin (7) of the conducting component (3) on the other clamping plate (2).
10. A method for measuring the voltage of a flat cable, wherein the method uses the measuring assembly of claim 9 to perform the voltage measurement between the copper foil layers on the flat spot halves;
the measuring method comprises the following steps:
s1, clamping the flat cable between the two clamping plates (2);
s2, driving the measuring pins (7) on the clamping plate (2) to extend by using the feeding assembly (5), so that the measuring pins (7) pierce through the surface insulation layer of the flat cable;
wherein, the measuring pin (7) on one clamping plate (2) penetrates into the surface insulating layer from the front side of the flat cable, and the measuring pin (7) on the other clamping plate (2) penetrates into the surface insulating layer from the back side of the flat cable;
and S3, measuring the voltage value between the two copper foil layers on the flat cable by using the electric connection relationship between different measuring pins (7) and different copper foil layers and the electric connection relationship between the measuring instrument and the measuring pins (7) by the measuring instrument.
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| CN202210202846.8A CN114624477B (en) | 2022-03-03 | 2022-03-03 | Flat cable skin breaking device, voltage measurement assembly and measurement method |
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| CN103743299A (en) * | 2014-01-13 | 2014-04-23 | 中国工程物理研究院化工材料研究所 | Low-inductance connector for connecting flat cable of slapper detonator |
| CN106532320A (en) * | 2016-12-09 | 2017-03-22 | 中国工程物理研究院化工材料研究所 | Small low-inductance connector for flat cable connection of slapper detonator |
| CN109285634A (en) * | 2017-07-21 | 2019-01-29 | 矢崎（中国）投资有限公司 | The metal core wire integration connection method of flat cable and flat cable |
| CN210863934U (en) * | 2019-09-25 | 2020-06-26 | 东莞市凯利仕精密组件有限公司 | Flat cable voltage-withstand test mechanism |
| CN214895410U (en) * | 2021-02-07 | 2021-11-26 | 国网江苏省电力有限公司电力科学研究院 | Multi-parameter detection clamp for coiled cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103743299A (en) * | 2014-01-13 | 2014-04-23 | 中国工程物理研究院化工材料研究所 | Low-inductance connector for connecting flat cable of slapper detonator |
| CN106532320A (en) * | 2016-12-09 | 2017-03-22 | 中国工程物理研究院化工材料研究所 | Small low-inductance connector for flat cable connection of slapper detonator |
| CN109285634A (en) * | 2017-07-21 | 2019-01-29 | 矢崎（中国）投资有限公司 | The metal core wire integration connection method of flat cable and flat cable |
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