A device and method for detecting the insulation of an ultrafine wire core insulation layer

Abstract

The application discloses a kind of extremely thin wire core insulation layer insulation detection device and method, it includes detection support plate part and inspection presser plate part, loading unit is arranged between detection support plate part and inspection presser plate part, detection support plate part includes detection support plate and circuit board, at least one V-shaped groove is provided on detection support plate, second round through hole and third round through hole are provided in each V-shaped groove, first probe and second probe extending along Z axis are provided on circuit board, the diameter of first probe needle end is less than the outer diameter of insulation layer, the diameter of second probe needle end is greater than the outer diameter of wire core, when detecting extremely thin electric wire, first probe needle end contacts with the insulation layer of extremely thin electric wire, and second probe needle end contacts with the wire core of extremely thin electric wire.The application effectively improves the deficiencies of prior art, fills the gap of prior art, can greatly improve production efficiency, and further improves product quality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of insulation layer insulation detection of wire core, and particularly discloses a device and method for detecting insulation of insulation layer of extremely thin wire core. BACKGROUND

[0002] With the continuous development of modern electronic technology and the increasing demand for electronic devices in industry and daily life, extremely thin wires have been widely used in various micro appliances. When the extremely thin wires are applied to micro appliances, they must be cut into various lengths, and when connected with other structures again, the wires with insulation layers need to be stripped of a part of the insulation layer to expose the wire core. During the stripping process, there is a small probability of damaging the insulation layer. If unqualified products are to be selected, the insulation of the wire core and the insulation layer needs to be detected. The commonly used wire insulation detection method is a wire insulation layer detector, and the advanced detection method for micro small workpieces is to use a flexible probe device for detection.

[0003] A wire insulation detector is disclosed in the specification of Chinese utility model patent CN209656840U, which comprises a power supply, a brush piece, a clamping piece, a resistance monitoring device, a variable resistor and a wire traction device. The anode end of the power supply is connected in series with the variable resistor and the brush piece, and the cathode end of the power supply is connected in series with the clamping piece. The resistance monitoring device comprises a current sensor, a voltage sensor, a single-chip microcomputer and a resistance display. The current sensor is connected in series with the variable resistor, and the voltage sensor is connected in parallel to the brush piece and the clamping piece. The current sensor, the voltage sensor and the resistance display are connected to the single-chip microcomputer. The brush piece, the wire traction device and the clamping piece are sequentially and parallelly insulated mounted on the upper mounting platform of the support frame. The power supply and the resistance monitoring device, the variable resistor are fixedly mounted on the lower mounting platform of the support frame. Although the technical scheme has the advantages of convenient use and no damage to the wire, it can only detect thicker and longer cables, and has great limitations for extremely thin and small length wires, and cannot detect the insulation of the insulation layer of the wire core of the extremely thin wire.

[0004] The description of Chinese utility model patent CN217443423U discloses a probe detection device, comprising: a probe module, a lifting module and a bottom plate; a plurality of guide shafts are arranged on the bottom plate, the probe module is slidably installed on the plurality of guide shafts, and the lifting module is fixed on one side of the bottom plate and located at the bottom of the probe module; the lifting module comprises a pneumatic cylinder and a lifting assembly connected with the pneumatic cylinder, the lifting assembly comprises an inclined block and a roller, an opening is arranged at the bottom of the probe module, the roller is fixed to the bottom of the probe module through a fixing block and can roll in the opening, and the surface of the inclined block abuts against the roller. By arranging the lifting module at the bottom of the probe module, the pneumatic cylinder in the lifting module does not directly lift the probe module, but through the arrangement of the roller and the inclined block, the roller can climb along the surface of the inclined block in the process of being pushed horizontally by the pneumatic cylinder, so that the probe module is lifted. The technical scheme can be increased or decreased according to the number and arrangement mode of the detected products, and is fast and convenient. However, since the probe head is exposed, the extremely thin wire cannot be positioned, and the insulation of the extremely thin wire core cannot be detected.

[0005] The description of Chinese utility model patent CN202057750U discloses a detection device for detecting the electrical property of a flat cable, the flat cable having a plurality of core wires and an insulating layer covering each of the core wires, the electrical property detection device comprising: a power supply unit including a base and a plurality of conductive wires fixed to the base; a detection placement platform including a first plate and a second plate, the second plate being arranged on the base and provided with a plurality of through holes, the first plate being stacked on the second plate and provided with a plurality of partition pieces, each of the partition pieces and each of the through holes defining a groove; and a plurality of probes, each of the probes having one end electrically connected to one of the conductive wires and the other end penetrating through one of the through holes and located in one of the grooves; wherein each of the core wires of the flat cable is arranged in one of the grooves, and each of the probes penetrates through the insulating layer to electrically connect to one of the core wires. The utility model can use a plurality of probes to penetrate the insulating layer to test the electrical property of the flat cable, without the need to remove the insulating layer, so that the test of the electrical property of the flat cable is more convenient, fast and accurate. However, the detection method can detect a plurality of core wires at a time, saving labor and material costs. However, the insulating layer needs to be penetrated during the detection process, which damages the integrity of the core wires. SUMMARY

[0006] In view of the technical problems in the prior art, the present application provides an extremely thin wire core insulating layer insulation detection device and method, which can accurately detect the insulation of the insulating layer of a plurality of extremely thin wires at a time without damaging the wires, effectively improving the shortcomings of the prior art, filling the gaps in the prior art, greatly improving production efficiency and further improving product quality.

[0007] The application discloses an extremely thin wire core insulation layer insulation detection device, which comprises a detection supporting plate part for positioning and conducting extremely thin wires and a test pressing plate part for loading the extremely thin wires on the detection supporting plate part, the distance between the detection supporting plate part and the test pressing plate part is adjusted by a loading unit arranged along the Z-axis direction, the detection supporting plate part comprises parallelly fixed detection supporting plates and a circuit board, at least one V-shaped groove is arranged on the detection supporting plate, each V-shaped groove extends along the X-axis direction, two adjacent V-shaped grooves are arranged along the Y-axis direction, a second circular through hole and a third circular through hole are arranged in each V-shaped groove and extend along the Z-axis direction, a first probe and a second probe extending along the Z-axis direction are arranged on the circuit board, the first probe is arranged in one-to-one correspondence with the second circular through hole, the second probe is arranged in one-to-one correspondence with the third circular through hole, the first probe needle end of the first probe is located in the V-shaped groove through the second circular through hole, the second probe needle end of the second probe is located in the V-shaped groove through the third circular through hole, the diameter of the first probe needle end is smaller than the outer diameter of the insulation layer, the diameter of the second probe needle end is larger than the outer diameter of the wire core, when the extremely thin wires are detected, the first probe needle end is in contact with the insulation layer of the extremely thin wires, and the second probe needle end is in contact with the wire core of the extremely thin wires.

[0008] In a preferred embodiment of the application, the detection supporting plate comprises a circuit board mounting part and an extremely thin wire positioning part, the thickness of the extremely thin wire positioning part along the Z-axis direction is greater than the thickness of the circuit board mounting part along the Z-axis direction, and the width of the extremely thin wire positioning part along the Y-axis direction is less than the width of the circuit board mounting part along the Y-axis direction.

[0009] In a preferred embodiment of the application, the bottom surface of the circuit board mounting part is fixedly connected with a detection circuit board, a U-shaped groove for avoiding a connector of the detection circuit board is arranged on the bottom surface of the circuit board mounting part, and the extremely thin wire positioning part is arranged on the end surface of the circuit board mounting part and provided with the V-shaped groove.

[0010] In a preferred embodiment of the application, the circuit board mounting part is provided with a supporting plate protection pad and a mounting hole for connecting the loading unit.

[0011] In a preferred embodiment of the application, the loading unit comprises a supporting plate cylinder and a pressing plate cylinder arranged along the Z-axis direction, the telescopic end of the supporting plate cylinder is connected with the detection supporting plate part, the telescopic end of the pressing plate cylinder is connected with the test pressing plate part, and the detection supporting plate part and the test pressing plate part are arranged oppositely.

[0012] In a preferred embodiment of the present application, the mounting plate is provided with a first mounting surface and a second mounting surface, the mounting plate first mounting surface is provided with a first limiting part, the mounting plate second mounting surface is provided with a second limiting part, the first limiting part is located above the detection tray cylinder, the first limiting part is used to detect the upper limit of the Z-axis displacement of the detection tray part, the second limiting part is located below the pressing plate cylinder, and the second limiting part is used to detect the lower limit of the Z-axis displacement of the pressing plate part.

[0013] In a preferred embodiment of the present application, the mounting plate first mounting surface is provided with a first limiting part, the mounting plate second mounting surface is provided with a second limiting part, the first limiting part is located above the detection tray cylinder, the first limiting part is used to detect the upper limit of the Z-axis displacement of the detection tray part, the second limiting part is located below the pressing plate cylinder, and the second limiting part is used to detect the lower limit of the Z-axis displacement of the pressing plate part.

[0014] In a preferred embodiment of the present application, the first limiting part / second limiting part comprises an L-shaped mounting seat, and an oil buffer and a limiting screw arranged along the Z-axis are arranged on the L-shaped mounting seat.

[0015] In a preferred embodiment of the present application, the detection tray part comprises a detection tray, and the detection tray is provided with a pressing head part and a pressing plate protection base plate matched with the fine wire positioning part of the detection tray part, and the pressing head part and the pressing plate protection base plate are located on different sides of the detection tray in the X-axis direction.

[0016] In a preferred embodiment of the present application, the diameter of the insulating layer is not greater than 1.13 mm, and the diameter of the inner core is not greater than 0.23 mm.

[0017] The present application also discloses a fine wire core insulating layer insulation detection device and a fine wire core insulating layer insulation detection method.

[0018] Step 1, connecting the connector of the circuit board to the power supply;

[0019] Step 2, connecting the detection tray cylinder and the pressing plate cylinder to the power supply and the gas source;

[0020] Step 3, placing the fine wire between the detection tray part and the pressing plate part at a designated position;

[0021] Step 4, controlling the detection tray cylinder to place the detection tray part at the designated position so that the plurality of wires are placed in the V-shaped groove of the detection tray part, at this time, the wire core contacts the second probe needle end, and the insulating layer contacts the first probe needle end;

[0022] Step 5, controlling the pressing plate cylinder to push the pressing plate part downward to the designated position, and the pressing plate part presses the fine wire;

[0023] Step 6, detecting the insulation between the fine wire core and the insulation layer.

[0024] The present application has the advantages that the present application can detect the insulation between the fine wire core and the insulation layer of several fine wires at one time without damaging the wires, greatly improving the production efficiency; the present application has high detection precision, greatly improving the precision of the insulation detection between the fine wire core and the insulation layer; the present application can save time and labor when used in the production process, thereby greatly saving the labor cost;

[0025] Further, the present application includes a detection support plate part for positioning the fine wire and a test pressing plate part for loading the fine wire positioned on the detection support plate part, the distance between the detection support plate part and the test pressing plate part is adjusted by the loading unit arranged along the Z-axis direction, the detection support plate part includes a detection support plate and a circuit board fixed in parallel, at least one V-shaped groove is arranged on the detection support plate, each V-shaped groove extends along the X-axis direction, and adjacent two V-shaped grooves are arranged along the Y-axis direction, a second circular through hole and a third circular through hole are arranged in each V-shaped groove along the X-axis direction, a first probe and a second probe are arranged on the circuit board along the Z-axis direction, the first probe is arranged one-to-one corresponding to the second circular through hole, and the second probe is arranged one-to-one corresponding to the third circular through hole, the first probe needle end of the first probe is located in the V-shaped groove through the second circular through hole, the second probe needle end of the second probe is located in the V-shaped groove through the third circular through hole, the diameter of the first probe needle end is smaller than the outer diameter of the insulation layer, and the diameter of the second probe needle end is larger than the outer diameter of the wire core, when the fine wire is detected, the first probe needle end contacts the insulation layer of the fine wire, and the second probe needle end contacts the wire core of the fine wire; it should be noted that the definition of the fine wire for the insulation detection of the insulation layer is that the diameter of the insulation layer is not greater than 1.13 mm, and the diameter of the inner core is not greater than 0.23 mm, the fine wire is essentially different from the wires recorded in the prior art, and the fine wire can only be detected by the mechanism design of the present application;

[0026] Further, the detection support plate of the present application includes a circuit board mounting part and a fine wire positioning part, the thickness of the fine wire positioning part along the Z-axis direction is greater than or equal to the thickness of the circuit board mounting part along the Z-axis direction, and the width of the fine wire positioning part along the Y-axis direction is less than the width of the circuit board mounting part along the Y-axis direction, which is beneficial to the crimping of the test pressing plate part to the fine wire and improves the detection success rate;

[0027] Further, the bottom surface of the circuit board mounting portion is fixedly connected with a circuit board, a U-shaped groove for avoiding the connector of the circuit board is arranged on the bottom surface of the circuit board mounting portion, and an extremely thin wire positioning portion is arranged on the end surface of the circuit board mounting portion, and a V-shaped groove is arranged on the extremely thin wire positioning portion.

[0028] Further, the circuit board mounting portion is provided with a supporting plate protection pad and a mounting hole for connecting a loading unit, so that the detection supporting plate part can be effectively protected and is prevented from being subjected to rigid impact.

[0029] Further, the loading unit comprises a supporting plate cylinder and a pressing plate cylinder arranged along the Z-axis, the telescopic end of the supporting plate cylinder is connected with the detection supporting plate part, the telescopic end of the pressing plate cylinder is connected with the inspection pressing plate part, and the detection supporting plate part and the inspection pressing plate part are arranged oppositely, so that the supporting plate and the pressing plate independent stations can be independently controlled, the extremely thin wire is first positioned on the detection supporting plate part and then loaded on the inspection pressing plate part, and the detection precision is improved.

[0030] Further, the mounting plate, the supporting plate cylinder and the pressing plate cylinder are mounted on the mounting plate first mounting surface of the mounting plate, and the middle part of the mounting plate is provided with a square-shaped through hole, so that the structure is compact and the space utilization rate is high.

[0031] Further, the mounting plate first mounting surface of the mounting plate is provided with a first limiting part, the mounting plate second mounting surface of the mounting plate is provided with a second limiting part, the first limiting part is located above the supporting plate cylinder, the first limiting part is used for realizing the upper limit position of the Z-axis displacement of the detection supporting plate part, the second limiting part is located below the pressing plate cylinder, and the second limiting part is used for realizing the lower limit position of the Z-axis displacement of the inspection pressing plate part, so that the two cylinders can be effectively limited.

[0032] Further, the first limiting part / second limiting part comprises an L-shaped mounting seat, an oil pressure buffer and a limiting screw arranged along the Z-axis are arranged on the L-shaped mounting seat, the oil pressure buffer can effectively protect the detection supporting plate part and the inspection pressing plate part and prevent them from being subjected to rigid impact, and the limiting screw can reasonably and independently adjust the Z-axis stroke of the detection supporting plate part and the inspection pressing plate part, and the compatibility of the circuit board mounting portion is improved.

[0033] Further, the inspection pressing plate part comprises an inspection pressing plate arranged perpendicularly to the Z-axis, a pressing head part and a pressing plate protection pad matched with the extremely thin wire positioning portion of the detection supporting plate part are arranged on the inspection pressing plate, and the pressing head part and the pressing plate protection pad are located on different sides of the X-axis of the inspection pressing plate, so that the circuit board mounting portion occupies less space.

[0034] This invention also discloses an insulation testing method for ultra-fine wire core insulation layers. It uses an ultra-fine wire core insulation layer insulation testing device to test the insulation of the wire core and insulation layer of one or more ultra-fine wires, which can greatly improve production efficiency. This invention has high testing accuracy, which can greatly improve the accuracy of insulation testing between the wire core and insulation layer. When this invention is used in the production process, it can save time and effort, thereby greatly reducing labor costs. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of an insulation testing device for an ultra-fine wire core insulation layer according to the present invention;

[0036] Figure 2 This is a schematic diagram of the detection tray portion of an ultra-fine wire core insulation layer insulation testing device of the present invention;

[0037] Figure 3 This is a schematic diagram of the testing tray of an insulation testing device for an ultra-fine wire core insulation layer according to the present invention;

[0038] Figure 4 This is a schematic diagram of the test circuit board of an ultra-fine wire core insulation layer insulation testing device of the present invention;

[0039] Figure 5 This is a schematic planar view of the end face structure of a set of first probes and second probes of an ultra-fine wire core insulation layer insulation testing device of the present invention, with the first probe tip and the second probe tip of the second probe placed in a V-groove.

[0040] Figure 6 This is a top view of the structure of the device for detecting the insulation properties of an ultra-fine wire core insulation layer according to the present invention, when two ultra-fine wires are placed in a V-groove.

[0041] Figure 7 This is a front oblique perspective three-dimensional structural diagram of the detection tray and inspection pressure plate of the ultra-fine wire core insulation layer detection device of the present invention when they are not in contact.

[0042] Figure 8 This is a rear oblique perspective three-dimensional structural diagram of the detection tray and inspection pressure plate of the ultra-fine wire core insulation layer detection device of the present invention when they are in close contact.

[0043] In the figure: 1 - very thin wire, 101 - insulation layer, 102 - wire core, 2 - mounting plate, 201 - stepped hole, 202 - first round hole, 203 - first mounting surface of mounting plate, 204 - square cavity, 205 - second mounting surface of mounting plate, 3 - detection tray part, 301 - tray cylinder, 302 - detection tray, 302-1 - V-shaped groove, 302-2 - second round through hole, 302-3 - third round through hole, 302-4 - U-shaped groove, 302-5 - threaded hole, 302-6 - upper surface of detection tray, 302-7 - lower surface of detection tray, 303 - inspection circuit board, 303-1 - circuit board, 303-1-1 - upper surface of circuit board, 303-2 - first probe, 303-2-1 - needle end of first probe, 303-3 - second probe, 303-3-1 - needle end of second probe, 303-4 - connector, 303-4-1 - connector leg, 303-4-2 - connector end, 304 - tray protection pad, 4 - first limiting part, 5 - inspection press plate part, 501 - inspection press plate, 501-1 - front end of press plate, 501-2 - lower surface of press plate, 501-3 - rear end of press plate, 502 - press plate cylinder, 503 - press plate protection pad, 6 - second limiting part, 601 - oil buffer, 602 - limiting screw. Embodiment

[0044] The technical solutions of the present application (including the preferred technical solutions) will be described in further detail below by means of the accompanying drawings and by listing some optional embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0045] The application discloses an extremely thin wire core insulation layer insulation detection device, which comprises a detection supporting plate part 3 for positioning and conducting an extremely thin wire 1 and a detection pressing plate part 5 for loading the extremely thin wire 1 located on the detection supporting plate part 3, the spacing between the detection supporting plate part 3 and the detection pressing plate part 5 is adjusted by a loading unit arranged along the Z-axis direction, the detection supporting plate part 3 comprises parallelly fixed detection supporting plates 302 and detection circuit boards 303, at least one V-shaped groove 302-1 is arranged on each detection supporting plate 302, each V-shaped groove 302-1 extends along the X-axis direction, and two adjacent V-shaped grooves 302-1 are arranged along the Y-axis direction, a second circular through hole 302-2 and a third circular through hole 302-3 are arranged in each V-shaped groove 302-1 and extend along the Z-axis direction, a first probe 303-2 and a second probe 303-3 extending along the Z-axis direction are arranged on the circuit board 303-1, the first probe 303-2 is arranged in one-to-one correspondence with the second circular through hole 302-2, the second probe 303-3 is arranged in one-to-one correspondence with the third circular through hole 302-3, a first probe needle end 303-2-1 of the first probe 303-2 is located in the V-shaped groove 302-1 through the second circular through hole 302-2, a second probe needle end 303-3-1 of the second probe 303-3 is located in the V-shaped groove 302-1 through the third circular through hole 302-3, the diameter of the first probe needle end 303-2-1 is smaller than the outer diameter of the insulation layer 101, and the diameter of the second probe needle end 303-3-1 is larger than the outer diameter of the wire core 102, when the extremely thin wire 1 is detected, the first probe needle end 303-2-1 is in contact with the insulation layer 101 of the extremely thin wire 1, and the second probe needle end 303-3-1 is in contact with the wire core 102 of the extremely thin wire 1, and the definition of the extremely thin wire 1 is that the diameter of the insulation layer is not greater than 1.13 mm, and the diameter of the inner core is not greater than 0.23 mm.

[0046] Preferably, the detection supporting plate 302 comprises a circuit board mounting part and an extremely thin wire positioning part, the thickness of the extremely thin wire positioning part along the Z-axis direction is greater than the thickness of the circuit board mounting part along the Z-axis direction, and the width of the extremely thin wire positioning part along the Y-axis direction is less than the width of the circuit board mounting part along the Y-axis direction.

[0047] Preferably, the bottom surface of the circuit board mounting part is fixedly connected with the detection circuit board 303, a U-shaped groove 302-4 for avoiding a connector 303-4 of the detection circuit board 303 is arranged on the bottom surface of the circuit board mounting part, the end surface of the circuit board mounting part is provided with the extremely thin wire positioning part, and the V-shaped groove 302-1 is arranged on the extremely thin wire positioning part.

[0048] Preferably, a supporting plate protection pad 304 and a mounting hole for connecting the loading unit are arranged on the circuit board mounting part.

[0049] Preferably, the loading unit comprises a supporting plate cylinder 301 and a pressing plate cylinder 502 arranged along the Z-axis direction, the telescopic end of the supporting plate cylinder 301 is connected with the detection supporting plate part 3, the telescopic end of the pressing plate cylinder 502 is connected with the inspection pressing plate part 5, and the detection supporting plate part 3 and the inspection pressing plate part 5 are oppositely arranged.

[0050] Preferably, the mounting plate 2 is provided, the supporting plate cylinder 301 and the pressing plate cylinder 502 are mounted on the mounting plate first mounting surface 203 of the mounting plate 2, and the middle part of the mounting plate 2 is provided with a square-shaped cavity 204.

[0051] Preferably, the mounting plate first mounting surface 203 of the mounting plate 2 is provided with a first limiting part 4, the mounting plate second mounting surface 205 of the mounting plate 2 is provided with a second limiting part 6, the first limiting part 4 is located above the supporting plate cylinder 301, the first limiting part 4 is used for realizing the upper limit position of the Z-axis direction displacement of the detection supporting plate part 3, and the second limiting part 6 is located below the pressing plate cylinder 502, and the second limiting part 6 is used for realizing the lower limit position of the Z-axis direction displacement of the inspection pressing plate part 5.

[0052] Preferably, the first limiting part 4 / second limiting part 6 comprises an L-shaped mounting seat, and an oil pressure buffer 601 and a limiting screw 602 are arranged on the L-shaped mounting seat along the Z-axis direction.

[0053] Preferably, the inspection pressing plate part 5 comprises an inspection pressing plate 501 arranged perpendicularly to the Z-axis direction, the inspection pressing plate 501 is provided with a pressure head part matched with the fine wire positioning part of the detection supporting plate part 3 and a pressing plate protection pad 503, and the pressure head part and the pressing plate protection pad 503 are located on different sides of the X-axis direction of the inspection pressing plate 501.

[0054] The application further discloses a fine wire core insulation layer insulation detection method.

[0055] Step 1, connecting the connector 303-4 of the inspection circuit board 303 to the power supply;

[0056] Step 2, connecting the supporting plate cylinder 301 and the pressing plate cylinder 502 to the power supply and the gas source;

[0057] Step 3, placing the fine wire 1 at a designated position between the detection supporting plate part 3 and the inspection pressing plate part 5;

[0058] Step 4: Control the tray cylinder 301 to place the detection tray part 3 in the designated position so that several ultra-fine wires 1 are placed in the V-shaped groove 302-1 of the detection tray part 3. At this time, the wire core 102 contacts the second probe needle end 303-3-1, and the insulation layer 101 simultaneously contacts the first probe needle end 303-2-1.

[0059] Step 5: Control the pressure plate cylinder 502 to push the inspection pressure plate part 5 downward to the designated position, and the inspection pressure plate part 5 will press the ultra-fine wire 1 tightly.

[0060] Step 6: Inspect the insulation between the ultra-fine wire core and the insulation layer.

[0061] The invention will be further explained below with reference to the accompanying drawings:

[0062] like Figure 1 As shown, the present invention discloses an insulation testing device for ultra-fine wire core insulation layers, comprising a mounting plate 2, a testing tray portion 3, a first limiting portion 4, a testing pressure plate portion 5, and a second limiting portion 6; the mounting plate 2 is provided with a stepped hole 201, a first round hole 202, a first mounting surface 203, a square compartment 204, and a second mounting surface 205; the ultra-fine wire core insulation layer insulation testing device can be precisely installed in a designated position using screws and pins through the stepped hole 201 and the first round hole 202 (see...). Figure 7 , Figure 8 ).

[0063] The testing tray section 3 includes a tray cylinder 301, a testing tray 302, an inspection circuit board 303, and tray protective pads 304. The tray cylinder 301 is installed on the lower part of the first mounting surface 203 of the mounting plate 2. The inspection circuit board 303 is fixed together with the testing tray 302 on the movable end of the tray cylinder 301. Two tray protective pads 304 are fixed on both sides of the upper surface 302-6 of the testing tray 302 (see...). Figure 4 ).

[0064] The detection tray 302 is provided with several sets of V-grooves 302-1, several second through holes 302-2, several third through holes 302-3, two U-grooves 302-4, two sets of threaded holes 302-5 on the left and right, an upper surface 302-6 of the detection tray, and a lower surface 302-7 of the detection tray (see...). Figure 5 ).

[0065] The inspection circuit board 303 includes a circuit board 303-1, several first probes 303-2, several second probes 303-3, two sets of connectors 303-4, and an upper surface 303-1-1 of the circuit board (see...). Figure 6 ).

[0066] Several extremely thin electric wires 1 can be fixed accurately on the clamping fixture between the detection tray part 3 and the test pressing plate part 5.

[0067] Several first probes 303-2, several second probes 303-3 and two groups of connector pins 303-4 are welded on the circuit board 303-1, the two groups of connector pin feet 303-4-1 are on the same side of the detection ends of the several first probes 303-2 and the several second probes 303-3 on the upper surface 303-1-1 of the circuit board, the upper surface 303-1-1 of the test circuit board 303 is placed together with the lower surface 302-7 of the detection tray 302 between the movable end of the tray cylinder 301 and the detection tray 302, and is fixed on the movable end of the cylinder by screws and pins, the two groups of connector pin feet 303-4-1 on both sides of the test circuit board 303 are placed in the two U-shaped grooves 302-4 of the detection tray 302, the several first probe needle ends 303-2-1 of the several first probes 303-2 are placed in the several groups of V-shaped grooves 302-1 of the detection tray 302 after the several first probes 303-2 pass through the several second round holes 302-2, and the several second probe needle ends 303-3-1 of the several second probes 303-3 are placed in the several groups of V-shaped grooves 302-1 of the detection tray 302 after the several second probes 303-3 pass through the several third round holes 302-3. The V-shaped structure of the several groups of V-shaped grooves 302-1 facilitates the placement of the several extremely thin electric wires 1 in the several V-shaped grooves 302-1 without easy sliding off, when the several extremely thin electric wires 1 are placed in the several V-shaped grooves 302-1, the wire cores 102 of the several extremely thin electric wires 1 are placed on the second probe needle ends 303-3-1 of the several second probes 303-3 which are much larger in diameter than the wire cores 102, and the insulating layers 101 of the several extremely thin electric wires 1 are placed on the first probe needle ends 303-2-1 of the several first probes 303-2 which are much smaller in diameter than the insulating layers 101, as the diameters differ greatly, the wire cores 102 must be in contact with the second probe needle ends 303-3-1, and similarly the insulating layers 101 must be in contact with the first probe needle ends 303-2-1.

[0068] The test pressing plate part 5 is provided with a test pressing plate 501, a pressing plate cylinder 502 and a pressing plate protection pad 503. The pressing plate cylinder 502 is fixed on the upper part of the first mounting surface 203 of the mounting plate 2, the front end 501-1 of the pressing plate is fixed on the movable end of the pressing plate cylinder 502, the rear end 501-3 of the pressing plate extends to the same side of the second mounting surface 205 of the mounting plate 2 after passing through the square warehouse 204 of the mounting plate 2, and the two pressing plate protection pads 503 are installed on both sides of the lower surface 501-2 of the pressing plate (see Figure 7 、 Figure 8 ).

[0069] The detection plate 302 and the detection pressing plate 501 are made of non-metal insulating material with high hardness, and the plate protection pads 304 and the pressing plate protection pads 503 are made of metal stamping-resistant material.

[0070] The first limiting parts 4 are provided with oil pressure buffers 601 and limiting screws 602 (see Figure 7 ), the control plate cylinder 301 can drive the detection plate 3 to move upward, and the two groups of first limiting parts 4 fixed on the upper part of the two sides of the first mounting surface 203 of the mounting plate 2 can adjust the positions of the oil pressure buffers 601 and the limiting screws 602 according to needs. When the detection plate 3 moves upward to the specified position, the oil pressure buffers 601 and the limiting screws 602 of the two groups of first limiting parts 4 contact the two plate protection pads 304 fixed on the two sides of the upper surface 302-6 of the detection plate 302, the limiting screws 602 limit the left and right positions, and the oil pressure buffers 601 buffer the pressure. Similarly, the control pressing plate cylinder 502 can drive the detection pressing plate 5 to move downward, and the two groups of second limiting parts 6 fixed on the middle part of the two sides of the second mounting surface 205 of the mounting plate 2 can adjust the positions of the oil pressure buffers 601 and the limiting screws 602 according to needs. When the detection pressing plate 5 moves downward to the specified position, the oil pressure buffers 601 and the limiting screws 602 of the two groups of second limiting parts 6 contact the two pressing plate protection pads 503 fixed on the two sides of the lower surface 501-2 of the pressing plate, the limiting screws 602 limit the left and right positions, and the oil pressure buffers 601 buffer the pressure. When the detection plate 3 and the detection pressing plate 5 reach the specified positions, the extremely thin wires 1 placed in the V-shaped grooves 302-1 are pressed by the detection pressing plate 5, the wire cores 102 of the extremely thin wires 1 are tightly placed on the second probe needle ends 303-3-1 of the second probes 303-3, and the insulating layers 101 of the extremely thin wires 1 are tightly placed on the first probe needle ends 303-2-1 of the first probes 303-2.

[0071] A method for detecting the insulation of the wire core and the insulating layer of the extremely thin wire, characterized in that the above-mentioned detection device can simultaneously detect the insulation of the wire core and the insulating layer of the extremely thin wire, and the method comprises the following steps:

[0072] Step 1, connect the connectors 303-4 of the detection circuit board 303 to the power supply;

[0073] Step 2, connect the control plate cylinder 301 and the pressing plate cylinder 502 to the power supply and the gas source;

[0074] Step 3, place the fine wire 1 between the detection tray part 3 and the test press plate part 5 at the designated position;

[0075] Step 4, control the tray cylinder 301 to place the detection tray part 3 at the designated position so that the several fine wires 1 are placed in the V-shaped groove 302-1 of the detection tray part 3, at this time the core 102 contacts the second probe needle end 303-3-1, and the insulation layer 101 contacts the first probe needle end 303-2-1 at the same time;

[0076] Step 5, control the press plate cylinder 502 to push the test press plate part 5 downward to the designated position, and the test press plate part 5 presses the fine wire 1;

[0077] Step 6, detect the insulation between the fine core and the insulation layer.

[0078] The order of the above steps 1 and 2 can be adjusted according to the actual use.

[0079] The present application is a kind of fine core insulation layer insulation detection device and method, can detect the insulation between the core and the insulation layer of several fine wires at a time, can greatly improve the production efficiency, the present application has high detection precision, can greatly improve the precision of the insulation between the core and the insulation layer, the present application can save time and labor when used in production process, thereby greatly saving the labor cost.

[0080] The skilled in the art can understand that the above is only a preferred embodiment of the present application, and does not limit the present application, any modification, combination, replacement, improvement, etc. made under the spirit and principles of the present application is included in the protection scope of the present application.

Claims

1. A device for detecting the insulation of a very thin wire core, comprising a detection pallet portion (3) for positioning a very thin wire (1) and a test presser portion (5) for loading the very thin wire (1) positioned on the detection pallet portion (3), the distance between the detection pallet portion (3) and the test presser portion (5) being adjusted by a loading unit arranged to extend along the Z axis, characterized in that: The detection support plate part (3) comprises parallelly fixed detection support plates (302) and test circuit boards (303), at least one V-shaped groove (302-1) is arranged on each detection support plate (302), each V-shaped groove (302-1) extends along the X-axis, and two adjacent V-shaped grooves (302-1) are arranged along the Y-axis, a second circular through hole (302-2) and a third circular through hole (302-3) are arranged in each V-shaped groove (302-1) and extend along the Z-axis, a first probe (303-2) and a second probe (303-3) extending along the Z-axis are arranged on each test circuit board (303), the first probe (303-2) is arranged in one-to-one correspondence with the second circular through hole (302-2), the second probe (303-3) is arranged in one-to-one correspondence with the third circular through hole (302-3), a first probe needle end (303-2-1) of the first probe (303-2) is located in the V-shaped groove (302-1) through the second circular through hole (302-2), a second probe needle end (303-3-1) of the second probe (303-3) is located in the V-shaped groove (302-1) through the third circular through hole (302-3), the diameter of the first probe needle end (303-2-1) is smaller than the outer diameter of the insulating layer (101), the diameter of the second probe needle end (303-3-1) is larger than the outer diameter of the wire core (102), when detecting the extremely thin electric wire (1), the first probe needle end (303-2-1) contacts the insulating layer (101) of the extremely thin electric wire (1), and the second probe needle end (303-3-1) contacts the wire core (102) of the extremely thin electric wire (1).

2. The extremely fine wire core insulation layer insulation property detection device according to claim 1, characterized by: The detection support plate (302) comprises a circuit board mounting portion and an extremely thin electric wire positioning portion, the thickness of the extremely thin electric wire positioning portion along the Z-axis is greater than the thickness of the circuit board mounting portion along the Z-axis, and the width of the extremely thin electric wire positioning portion along the Y-axis is less than the width of the circuit board mounting portion along the Y-axis.

3. The extremely fine wire core insulation layer insulation property detection device according to claim 2, characterized by: The bottom surface of the circuit board mounting portion is fixedly connected with the test circuit board (303), a U-shaped groove (302-4) for avoiding a connector (303-4) of the test circuit board (303) is arranged on the bottom surface of the circuit board mounting portion, the end surface of the circuit board mounting portion is provided with the extremely thin electric wire positioning portion, and the V-shaped groove (302-1) is arranged on the extremely thin electric wire positioning portion.

4. The extremely fine wire core insulation layer insulation property detection device according to claim 2, characterized by: The circuit board mounting portion is provided with a support plate protection pad (304) and a mounting hole for connecting a loading unit.

5. The extremely fine wire core insulation layer insulation property detection device according to claim 1, characterized by: The loading unit comprises a support plate air cylinder (301) and a pressing plate air cylinder (502) arranged along the Z-axis, the telescopic end of the support plate air cylinder (301) is connected with the detection support plate part (3), the telescopic end of the pressing plate air cylinder (502) is connected with a test pressing plate part (5), and the detection support plate part (3) and the test pressing plate part (5) are arranged oppositely.

6. The extremely fine wire core insulation layer insulation property detection device according to claim 5, characterized by: The mounting plate (2) is provided with a square-shaped cavity (205) in the middle part, and the tray cylinder (301) and the pressing plate cylinder (502) are mounted on the mounting plate first mounting surface (203) of the mounting plate (2).

7. The extremely fine wire core insulation layer insulation property detection device according to claim 6, characterized by: The mounting plate first mounting surface (203) of the mounting plate (2) is provided with a first limiting part (4), and the mounting plate second mounting surface (205) of the mounting plate (2) is provided with a second limiting part (6), the first limiting part (4) is located above the tray cylinder (301), and the first limiting part (4) is used to realize the upper limit position of the Z-axis displacement of the detection tray part (3); the second limiting part (6) is located below the pressing plate cylinder (502), and the second limiting part (6) is used to realize the lower limit position of the Z-axis displacement of the detection pressing plate part (5).

8. The extremely fine wire core insulation layer insulation property detection device according to claim 7, characterized by: The first limiting part (4) / the second limiting part (6) comprises an L-shaped mounting seat, and an oil buffer (601) and a limiting screw (602) extending along the Z-axis are arranged on the L-shaped mounting seat.

9. The extremely fine wire core insulation layer insulation property detection device according to claim 1, characterized by: The detection pressing plate part (5) comprises a detection pressing plate (501) arranged perpendicularly to the Z-axis, and a pressure head part and a pressing plate protection pad (503) are arranged on the detection pressing plate (501) and matched with the fine wire positioning part of the detection tray part (3), and the pressure head part and the pressing plate protection pad (503) are located on different sides of the X-axis of the detection pressing plate (501).

10. A method of detecting the insulation of an insulation layer of a very fine wire core, characterized by: The fine wire core and insulation layer insulation detection device according to any one of claims 1-9 is used for insulation detection of the core (102) and the insulation layer (101) of one or more fine wires (1), and the specific steps include: Step 1, connecting the connector (303-4) of the detection circuit board (303) to the power supply; Step 2, connecting the tray cylinder (301) and the pressing plate cylinder (502) to the power supply and the gas source; Step 3, placing the fine wire (1) at the designated position between the detection tray part (3) and the detection pressing plate part (5); Step 4, controlling the tray cylinder (301) to place the detection tray part (3) at the designated position so that the plurality of wires (402) are placed in the V-shaped groove (302-1) of the detection tray part (3), at this time, the core (102) contacts the second probe needle end (303-3-1), and the insulation layer (101) contacts the first probe needle end (303-2-1) at the same time; Step 5, controlling the pressing plate cylinder (502) to push the detection pressing plate part (5) downward to the designated position, and the detection pressing plate part (5) compresses the fine wire (1); Step 6, detecting the insulation between the fine wire core and the insulation layer.

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