CN110068294B - Detection device and detection method for wound type non-inductive resistor - Google Patents

Abstract

The invention discloses a detection device and a detection method for a wound-rotor type non-inductive resistor, wherein the detection device comprises: a detection platform; the carrier is provided with a plurality of carrier grooves, and the carrier grooves are used for bearing the resistor to be detected; the conveying mechanism is used for conveying the carriers; detection mechanism sets up on testing platform, and detection mechanism includes: detecting the bracket; the positioning assembly is used for positioning the carrier; the compressing assembly is used for fixing the resistor to be detected; and the measuring assembly is used for measuring the depth of the rectangular transverse groove of the resistor insulating cylinder to be detected, the width of the rectangular transverse groove, the groove interval of the adjacent rectangular transverse grooves and the depth of the rectangular vertical groove. The invention can effectively measure the depth of the rectangular transverse groove, the width of the rectangular transverse groove, the groove interval of the adjacent rectangular transverse grooves and the depth of the rectangular vertical groove of the resistor insulating cylinder, if problems exist, the problems can be found and solved in time, the yield of finished products of the wound-type non-inductive resistor is greatly improved, and the rejection rate of the finished products is reduced.

Description

Wire-wound non-inductive resistor detection device and detection method

technical field

The invention belongs to the field of detection of electrical components, and in particular relates to a detection device and a detection method of a wire wound non-inductive resistor.

Background technique

Medium and high voltage wire wound non-inductive resistors are widely used in the fields of power system, high voltage measurement and high voltage test. In order to prevent various undesirable problems caused by high-frequency oscillation or flashover along the surface of the resistance, this wire wound non-inductive resistor should have the smallest possible inductance and the highest possible withstand voltage level. At present, the medium and high voltage wire wound non-inductive resistors generally use the non-inductive winding method to reduce the inductance. This winding method is usually made by directly winding the resistance wire on the surface of the insulating support, so that the resistance withstand voltage level depends on the turns. When the withstand voltage level is high, the inter-turn distance is large, resulting in an increase in the residual inductance of the resistor. At the same time, the increase in the inter-turn distance makes the resistor volume larger.

In order to solve the contradiction between the residual inductance and the voltage withstand level of the wire wound non-inductive resistor, the utility model patent No. 201320049893.X discloses a medium and high voltage cylindrical wire wound non-inductive resistor. It has the advantages of high withstand voltage level, small residual inductance, light weight, small size, not easy to damage and easy to install.

In the production process of medium and high voltage cylindrical wire wound non-inductive resistors, the depth of the rectangular horizontal groove of the insulating cylinder and the rectangular vertical groove are required to be equal, and the width of the rectangular vertical groove is greater than twice the depth of the rectangular horizontal groove and the distance between the grooves. and half of the sum, which cannot be detected by existing resistor detection equipment.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention proposes a detection device and a detection method for a wire wound non-inductive resistor.

In order to achieve the above object, technical scheme of the present invention is as follows:

A wire-wound non-inductive resistor testing device, comprising: a testing platform, and also comprising:

a carrier, the carrier is provided with a plurality of carrier slots, the carrier slots are used to carry the resistors to be detected, and one carrier slot corresponds to a resistor to be detected;

The conveying mechanism is used to convey the carrier;

The detection mechanism is set on the detection platform, and the detection mechanism includes:

detection bracket;

The positioning component is used to position the vehicle;

The pressing component is used to fix the to-be-sense resistor;

The measuring component is used for measuring the depth of the rectangular transverse groove of the insulating cylinder of the resistor to be detected, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the depth of the rectangular vertical groove.

The invention discloses a winding type non-inductive resistor detection device, which has a simple structure and can effectively detect the depth of a rectangular transverse groove of a resistor insulating cylinder, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the rectangular vertical grooves. If there is any problem, it can be found and solved in time, which greatly improves the yield of the finished wire-wound non-inductive resistor and reduces the scrap rate of the finished product.

On the basis of the above technical solutions, the following improvements can be made:

As a preferred solution, the conveying mechanism includes: a conveying track arranged on the detection platform, a chute arranged at the bottom of the carrier to match the conveying track, and a carrier driving device that is drive-connected to the carrier, and the carrier driving device drives the carrier move along the conveyor track.

With the above preferred solution, the structure is simple and the cost is low.

As a preferred solution, the positioning assembly includes: a positioning groove provided on the detection platform, a positioning block rotatably connected to the wall of the positioning groove, and a positioning block driving device that is drive-connected to the positioning block, and the positioning block driving device is used to drive the positioning block to rotate .

With the above-mentioned preferred solution, the carrier can be positioned accurately without interference with the transportation of the carrier.

As a preferred solution, the compression assembly includes:

The pressure rod is inserted into the guide hole on the top of the detection bracket;

The pressing block, the pressing block is fixed on the lower end of the pressing rod;

Spring, the spring is sleeved on the pressure rod, and the spring is located between the top of the detection bracket and the pressure block;

The pressing rod driving device is connected with the pressing rod in transmission, and the pressing rod driving device drives the pressing rod to rise and fall.

By adopting the above preferred solution, the insulating cylinder of the resistor to be detected is well fixed to prevent the insulating cylinder of the resistor to be detected from moving during the measurement process, resulting in measurement errors.

As a preferred solution, an annular groove matching the top of the insulating cylinder of the resistor to be detected is provided on the pressing block, and one or more grooves are provided on the side wall of the annular groove along its circumferential direction.

With the above preferred solution, the insulating cylinder of the resistor to be detected can be effectively fixed, and the grooves on the side walls of the annular groove can prevent negative pressure from being generated inside.

As a preferred solution, the measurement components include:

Lifting rod, the lifting rod is inserted in the through hole of the testing platform;

The distance measuring sensor is arranged on the lift rod;

The image sensor is arranged on the lift rod;

The lifting rod driving device is connected with the lifting rod transmission, and the lifting rod driving device drives the lifting rod to rise and fall.

With the above preferred solution, a lifting rod is used to drive the ranging sensor and the image sensor to rise and fall, so as to ensure multi-directional data collection and ensure the diversity of data collection. The data collected by the ranging sensor and the image sensor can be sent to the control device, and the control device will model and analyze it to determine the depth of the rectangular transverse groove on the insulating cylinder of the resistor to be detected, the width of the rectangular transverse groove, and the width of the adjacent rectangular transverse grooves. The slot spacing and the depth of the rectangular vertical slot are measured.

As a preferred solution, one or more lighting mechanisms rotatably connected to the top of the detection bracket are provided.

With the above preferred solution, the illumination direction and intensity of the illumination mechanism can be adjusted to ensure good illumination effect.

As a preferred solution, a rotating shaft, an upper rotating plate and a lower fixed plate are arranged in the carrier groove, the upper rotating plate is rotatably connected with the rotating shaft, the lower fixed plate is fixedly connected with the rotating shaft, and the edge position of the upper rotating plate is provided with uniform distribution along its circumferential direction. A plurality of permanent magnets, and the polarities of the adjacent permanent magnets are opposite, and a plurality of electromagnets uniformly distributed along the circumferential direction of the lower fixed plate are arranged at the edge position, and the electromagnets are electrically connected with the polarity adjustment device, and the polarity is adjusted. The device is used to adjust the polarity of the electromagnet.

With the above preferred solution, the polarity adjustment device causes the upper turntable to drive the resistor to be detected in the carrier groove to rotate by a certain angle by changing the polarity of the electromagnet, so as to ensure that the measuring assembly can measure the resistor to be detected from different angles , the measurement results are more accurate.

As a preferred solution, the upper turntable and the lower fixed plate are slidably connected by a groove-protruding structure.

With the above preferred solution, the rotation of the upper turntable is more stable.

The method for detecting a wire-wound non-inductive resistor uses a wire-wound non-inductive resistor detection device for detection, which specifically includes the following steps:

(1) Place the resistor to be detected in the carrier slot of the carrier;

(2) The conveying mechanism conveys the carrier to the detection station;

(3) At the detection station, the positioning component in the detection mechanism first locates the position of the carrier, then the pressing component compresses the resistor to be detected carried by the carrier, and finally the measurement component insulates the resistor to be detected Measure the depth of the rectangular transverse groove of the cylinder, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the depth of the rectangular vertical groove, and send the test value to the control device;

(4) After the measurement, the conveying mechanism conveys the carrier away from the detection station.

The invention also discloses a method for detecting a wire-wound non-inductive resistor, which has simple steps and can quickly detect the depth of the rectangular transverse grooves of the insulating cylinder of the resistor, the width of the rectangular transverse grooves, the groove spacing between adjacent rectangular transverse grooves and the rectangular vertical grooves. Depth measurement.

Description of drawings

FIG. 1 is a top view of a wire wound non-inductive resistor detection device provided by an embodiment of the present invention.

FIG. 2 is a side view of a detection device for a wire wound non-inductive resistor according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a positioning assembly provided by an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a pressing assembly and a measuring assembly provided by an embodiment of the present invention.

FIG. 5 is a partial cross-sectional view of a carrier according to an embodiment of the present invention.

FIG. 6 is a top view of a lower fixing plate according to an embodiment of the present invention.

Among them: 1 detection platform, 11 through hole, 2 carrier, 21 carrier slot, 3 conveying mechanism, 4 detection mechanism, 41 detection bracket, 411 guide hole, 42 positioning assembly, 421 positioning groove, 422 positioning block, 43 pressing Component, 431 pressure rod, 432 pressure block, 4321 annular groove, 4322 groove, 433 spring, 44 measurement component, 441 lifting rod, 442 distance measuring sensor, 443 image sensor, 5 resistors to be detected, 6 lighting mechanism, 71 rotating shaft , 72 upper turntable, 73 lower fixed disk, 74 permanent magnet, 75 electromagnet.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In order to achieve the purpose of the present invention, in some embodiments of a detection device and detection method for a wire wound non-inductive resistor,

As shown in FIGS. 1 and 2 , the winding type non-inductive resistor detection device includes: a detection platform 1 , a carrier 2 , a conveying mechanism 3 and a detection mechanism 4 .

The carrier 2 is provided with six carrier slots 21 , the carrier slots 21 are used to carry the resistors to be detected, and one carrier slot 21 corresponds to a resistor 5 to be detected; the conveying mechanism 3 is used for the carrier 2 Carry out transportation; the detection mechanism 4 is arranged on the detection platform 1 , and the detection mechanism 4 includes: a detection bracket 41 , a positioning component 42 , a pressing component 43 and a measuring component 44 .

The positioning component 42 is used for positioning the carrier 2; the pressing component 43 is used for fixing the resistor 5 to be detected; the measuring component 44 is used for the depth of the rectangular transverse groove and the width of the rectangular transverse groove of the insulating cylinder of the resistance to be detected 5 , the groove spacing of adjacent rectangular horizontal grooves and the depth of rectangular vertical grooves.

The method for detecting a wire-wound non-inductive resistor uses a wire-wound non-inductive resistor detection device for detection, which specifically includes the following steps:

(1) Place the resistor 5 to be detected in the carrier groove 21 of the carrier 2;

(2) The conveying mechanism 3 conveys the carrier 2 to the detection station;

(3) At the detection station, the positioning component 42 in the detection mechanism 4 first locates the position of the carrier 2, and then the pressing component 43 compresses the to-be-detected resistor 5 carried by the carrier 2, and finally measures The component 44 measures the depth of the rectangular transverse groove of the insulating cylinder of the resistor 5 to be detected, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the depth of the rectangular vertical groove, and sends the test value to the control device;

(4) After the measurement, the conveying mechanism 3 conveys the carrier 2 away from the detection station.

The invention discloses a winding type non-inductive resistor detection device and a detection method. The detection device has a simple structure, and the detection method has simple steps. The slot spacing of the rectangular horizontal slot and the depth of the rectangular vertical slot are measured. If there is any problem, it can be found and solved in time, which greatly improves the yield of the finished wire-wound non-inductive resistor and reduces the scrap rate.

In order to further optimize the implementation effect of the present invention, in other embodiments, other features and techniques are the same, the difference is that the conveying mechanism 3 includes: a conveying track (not shown in the figure) provided on the detection platform 1, a A chute (not shown in the figure) that matches the conveying track at the bottom of the carrier 2 and a carrier driving device (not shown in the figure) drivingly connected with the carrier 2, the carrier driving device drives the carrier 2 along the conveying Orbital movement.

With the above preferred solution, the structure is simple and the cost is low.

As shown in FIG. 3 , in order to further optimize the implementation effect of the present invention, in other embodiments, other features and technologies are the same, the difference is that the positioning assembly 42 includes: a positioning groove 421 disposed on the detection platform 1 , and The positioning block 422 is rotatably connected to the groove wall of the positioning groove 421, and the positioning block driving device (not shown in the figure) is drivingly connected with the positioning block 422. The positioning block driving device is used to drive the positioning block 422 to rotate.

With the above preferred solution, when the conveying mechanism 3 starts to move, the control device controls the action of the positioning block driving device, the positioning block 422 originally placed horizontally in the positioning groove 421 rotates 90 degrees, the positioning block 422 is in an upright state, and the carrier 2 After encountering the positioning block 422 during the advance, the movement is stopped. The positioning assembly 42 precisely positions the carrier 2 . After the detection mechanism 4 completes the detection, the control device controls the positioning block driving device to act, the positioning block 422 is repositioned in the positioning groove 421 , the carrier 2 continues to move forward, and the positioning block 422 will not interfere with the conveyance of the carrier 2 .

As shown in FIG. 4 , in order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features and techniques are the same, except that the pressing component 43 includes:

a pressing rod 431, the pressing rod 431 is inserted into the guide hole 411 at the top of the detection bracket 41;

The pressing block 432, the pressing block 432 is fixed on the lower end of the pressing rod 431;

A spring 433, the spring 433 is sleeved on the pressure rod 431, and the spring 433 is located between the top of the detection bracket 41 and the pressure block 432;

The pressing rod driving device (not shown in the figure) is connected with the pressing rod 431 in a driving manner, and the pressing rod driving device drives the pressing rod 431 to rise and fall.

With the above preferred solution, the insulating cylinder of the resistor 5 to be detected is well fixed to prevent movement of the insulating cylinder of the resistor 5 to be detected during the measurement process, resulting in measurement errors.

Among them, one pressing block 432, pressing rod 431, and spring 433 corresponds to one resistor 5 to be detected. In some embodiments, six pressing rod driving devices may be provided, and one pressing rod driving device is drivingly connected with one pressing rod 431, In some other embodiments, one, two or three pressing rod driving devices may also be provided, and one pressing rod driving device is drivingly connected with a plurality of pressing rods 431, thereby reducing power source and cost.

Further, the pressing block 432 is provided with an annular groove 4321 matching the top of the insulating cylinder of the resistor 5 to be detected, and one or more grooves 4322 are formed on the side wall of the annular groove 4321 along its circumferential direction.

With the above preferred solution, the insulating cylinder of the resistor to be detected 5 can be effectively fixed, and the groove 4322 opened on the side wall of the annular groove 4321 can prevent negative pressure from being generated inside.

As shown in FIG. 4 , in order to further optimize the implementation effect of the present invention, in other embodiments, the remaining feature technologies are the same, and the difference is that the measurement component 44 includes:

Lifting rod 441, the lifting rod 441 is penetrated in the through hole 11 of the detection platform 1;

The distance measuring sensor 442 is arranged on the lift rod 441;

The image sensor 443 is arranged on the lift rod 441;

Lifting rod driving device (not shown in the figure), the lifting rod driving device is drivingly connected with the lifting rod 441, and the lifting rod driving device drives the lifting rod 441 to rise and fall.

With the above preferred solution, the lifting rod 441 is used to drive the ranging sensor 442 and the image sensor 443 to rise and fall, so as to ensure multi-directional data collection and ensure the diversity of data collection. The data collected by the distance measuring sensor 442 and the image sensor 443 can be sent to the control device, and the control device performs modeling analysis on it, and the depth of the rectangular transverse groove on the insulating cylinder of the resistor 5 to be detected, the width of the rectangular transverse groove, the adjacent rectangular The groove spacing of the horizontal grooves and the depth of the rectangular vertical grooves are measured.

When six resistors 5 to be detected are placed on the carrier 2, in some embodiments, the measurement components 44 may be arranged in six groups, one group of measurement components 44 corresponds to one resistor 5 to be detected, and each group of measurement components 44 has its own unique code. The data collected by the ranging sensor 442 and the image sensor 443 are bound together with the code of the corresponding measurement component 44 and sent to the control device. The control device can timely find out which resistor 5 to be detected has a problem.

In other embodiments, when the measuring components 44 are arranged in a group, the measuring components 44 are arranged on the moving component, and the moving component can drive the measuring component 44 to move in a horizontal position. At the same time, the measurement component 44 also includes: a scanner and a barcode disposed beside the carrier slot 21 of the carrier 2 . The moving component drives the measuring component 44 to move, the scanner scans the barcode first, then the ranging sensor 442 and the image sensor 443 collect data, bind the collected data with the barcode value and send it to the control device, and the control device can find out where it is in time. There is a problem with one of the resistors 5 to be detected.

As shown in FIG. 4 , in order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features and techniques are the same, except that one or more lightings rotatably connected to the top of the detection bracket 41 are provided. Institution 6.

With the above preferred solution, the illumination direction and intensity of the lighting mechanism 6 can be adjusted to ensure a good lighting effect, thereby improving the detection accuracy of the detection mechanism 4 .

As shown in FIGS. 5 and 6 , in order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features and techniques are the same, except that the carrier slot 21 is provided with a rotating shaft 71 , an upper turntable 72 and a The lower fixed disk 73, the upper rotating disk 72 are rotatably connected with the rotating shaft 71, the lower fixed disk 73 is fixedly connected with the rotating shaft 71, and a plurality of permanent magnets 74 uniformly distributed along the circumferential direction are arranged on the edge of the upper rotating disk 72, and adjacent permanent magnets 74 are arranged. The polarities of the magnets 74 are opposite, and a plurality of electromagnets 75 uniformly distributed along the circumference thereof are arranged at the edge position of the lower fixed plate 73, and the electromagnets 75 are electrically connected with the polarity adjustment device, and the polarity adjustment device is used to adjust the electromagnets. polarity.

With the above preferred solution, the polarity adjustment device urges the upper turntable 72 to drive the resistor to be detected 5 in the carrier slot 21 to rotate by a certain angle by changing the polarity of the electromagnet 75 to ensure that the measurement assembly 44 can be treated from different angles. The detection resistor 5 is used for measurement, and the measurement result is more accurate.

Further, the upper turntable 72 and the lower fixed disk 73 are slidably connected by a groove and protrusion structure.

With the above preferred solution, the rotation of the upper turntable 72 is more stable.

Regarding the preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention.

Claims (9)

1. Winding type non-inductive resistor detection device, comprising: a detection platform, it is characterized in that, also comprises: a carrier, the carrier is provided with a plurality of carrier slots, the carrier slots are used to carry the resistors to be detected, and one carrier slot corresponds to one resistor to be detected; a conveying mechanism for conveying the carrier; The detection mechanism is arranged on the detection platform, and the detection mechanism includes: detection bracket; a positioning assembly for positioning the carrier; The pressing component is used to fix the to-be-sense resistor; The measuring component is used to measure the depth of the rectangular transverse groove, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the depth of the rectangular vertical groove of the insulating cylinder of the resistor to be detected; The measurement assembly includes: a lift rod, which is inserted into the through hole of the detection platform; a ranging sensor, arranged on the lift rod; an image sensor, arranged on the lift rod; A lifting rod driving device, the lifting rod driving device is drivingly connected with the lifting rod, and the lifting rod driving device drives the lifting rod to rise and fall. 2 . The wire wound non-inductive resistor detection device according to claim 1 , wherein the conveying mechanism comprises: a conveying track arranged on the detection platform, a conveying track arranged at the bottom of the carrier and the A chute matched with the conveying track and a carrier driving device drivingly connected with the carrier, the carrier driving device drives the carrier to move along the conveying track. 3 . The wire wound non-inductive resistor detection device according to claim 1 , wherein the positioning assembly comprises: a positioning groove arranged on the detection platform, a groove wall rotatably connected with the positioning groove A positioning block and a positioning block driving device drivingly connected with the positioning block, the positioning block driving device is used for driving the positioning block to rotate. 4. The winding type non-inductive resistor detection device according to claim 1, wherein the pressing component comprises: a pressing rod, which is inserted into the guide hole on the top of the detection bracket; a pressing block, the pressing block is fixed on the lower end of the pressing rod; a spring, the spring is sleeved on the pressure rod, and the spring is located between the top of the detection bracket and the pressure block; A pressing rod driving device, the pressing rod driving device is drivingly connected with the pressing rod, and the pressing rod driving device drives the pressing rod to rise and fall. 5 . The wire wound non-inductive resistor detection device according to claim 4 , wherein an annular groove matching the top of the insulating cylinder of the resistor to be detected is provided on the pressing block, and the annular The side wall of the groove is provided with one or more grooves along its circumference. 6 . The wire wound non-inductive resistor detection device according to claim 1 , wherein one or more lighting mechanisms rotatably connected to the top of the detection bracket are provided. 7 . 7 . The wire wound non-inductive resistor detection device according to claim 1 , wherein a rotating shaft, an upper turntable and a lower fixed disc are arranged in the carrier groove, and the upper turntable is provided with the upper turntable. 8 . It is rotatably connected with the rotating shaft, the lower fixed disk is fixedly connected with the rotating shaft, and a plurality of permanent magnets uniformly distributed along the circumferential direction are arranged on the edge of the upper rotating disk, and the polarities of the adjacent permanent magnets are opposite. , a plurality of electromagnets uniformly distributed along its circumference are arranged at the edge position of the lower fixed plate, and the electromagnets are electrically connected with a polarity adjustment device, and the polarity adjustment device is used to adjust the electromagnets polarity. 8 . The wire-wound non-inductive resistor detection device according to claim 7 , wherein the upper turntable and the lower fixed plate are slidably connected by a groove-protruding structure. 9 . 9. The method for detecting a wire-wound non-inductive resistor, characterized in that, using the wire-wound non-inductive resistor detection device according to any one of claims 1 to 8 to detect, specifically comprising the following steps: (1) Place the resistor to be detected in the carrier slot of the carrier; (2) The conveying mechanism conveys the carrier to the detection station; (3) At the detection station, the positioning component in the detection mechanism first locates the position of the carrier, then the pressing component compresses the resistor to be detected carried by the carrier, and finally the measurement component insulates the resistor to be detected Measure the depth of the rectangular transverse groove of the cylinder, the width of the rectangular transverse groove, the groove spacing between adjacent rectangular transverse grooves and the depth of the rectangular vertical groove, and send the test value to the control device; (4) After the measurement, the conveying mechanism conveys the carrier away from the detection station.

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