CN109078860B - Mutual inductor overall dimension identity testing device - Google Patents
Mutual inductor overall dimension identity testing device Download PDFInfo
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- CN109078860B CN109078860B CN201810700546.6A CN201810700546A CN109078860B CN 109078860 B CN109078860 B CN 109078860B CN 201810700546 A CN201810700546 A CN 201810700546A CN 109078860 B CN109078860 B CN 109078860B
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- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 238000012795 verification Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013208 measuring procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/08—Sorting according to size measured electrically or electronically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a mutual inductor contour dimension identity testing device, which comprises a base, a positioning device, an outer circle detection device, a base detection device and a controller, wherein the positioning device comprises two positioning pins and two first cylinders, the first cylinders are installed on the base through first supports, conical fixing blocks are arranged at the end parts of piston rods of the first cylinders, the base detection device comprises a supporting plate, a first spring and a first displacement sensor, through holes matched with the positioning pins are formed in the supporting plate, the first spring is arranged between the supporting plate and the base, the first displacement sensor is arranged on the base, a telescopic rod of the first displacement sensor is fixedly connected with the supporting plate, the outer circle detection device comprises a second displacement sensor, the second displacement sensor is installed on the base, the first cylinder, the first displacement sensor and the second displacement sensor are respectively and electrically connected with the controller, and mutual inductor falling caused by contour dimension difference in the verification process is effectively avoided, And (4) detecting the phenomenon of data out of tolerance.
Description
Technical Field
The invention relates to a current transformer detection device, in particular to a device for testing the appearance size and the identity of a transformer.
Background
The low-voltage current transformer is a necessary device for low-voltage electric energy metering and on-line current detection. The low-voltage current transformer is specially used for metering and has the characteristics of wide metering limit, high metering accuracy and the like. The low-voltage current transformers for production and metering are 1000 thousands of each year in China. In order to test the low-voltage current transformer, a power department needs to invest a large amount of manpower and material resources. In order to solve the verification problem, an automatic verification assembly line is provided. Due to the difference of the key sizes of the current transformers for metering, the automatic verification work is greatly unchanged, and even the verification cannot be carried out.
In order to improve the verification efficiency, an automatic verification assembly line of the low-voltage current transformer is provided, and the appearance of the transformer is unified. However, the low-voltage current transformers have different overall dimensions due to transformer manufacturers. The phenomena of transformer falling, over-tolerance of verification data and the like often occur in the automatic verification process. In order to solve the problem, the invention provides a shape identity testing device. Can effectively prevent mutual inductor manufacturers from returning goods in batches due to unqualified appearance.
Disclosure of Invention
Aiming at the problems, the invention provides the instrument transformer overall dimension identity testing device, which realizes the measurement and screening of the key dimensions of the instrument transformer and can effectively avoid the phenomena of instrument transformer falling and over-tolerance of calibration data caused by the difference of the overall dimensions in the calibration process of the instrument transformer.
The technical scheme for solving the technical problem of the invention is as follows:
the mutual inductor overall dimension identity testing device comprises a base, a positioning device, an outer circle detecting device, a base detecting device and a controller, wherein the positioning device comprises two positioning pins and two first cylinders, the positioning pins are vertically arranged on the base, the first cylinders are arranged on the base through first supports, the first cylinders are horizontally arranged, piston rods of the two first cylinders are positioned on the same straight line, the piston rods of the two first cylinders are oppositely arranged, conical fixing blocks are arranged at the end parts of the piston rods of the first cylinders, the base detecting device comprises a supporting plate, a first spring and a first displacement sensor, through holes matched with the positioning pins are arranged on the supporting plate, the supporting plate penetrates through the positioning pins to realize sliding connection with the positioning pins, the first spring is arranged between the supporting plate and the base, and the first displacement sensor is arranged on the base, the telescopic link and the backup pad fixed connection of first displacement sensor, excircle detection device includes second displacement sensor, second displacement sensor installs on the base, and sets up on the perpendicular bisector of two locating pin lines, second displacement sensor's telescopic link tip is provided with the nut, install the second spring between nut and the base, first cylinder, first displacement sensor, second displacement sensor are connected with the controller electricity respectively.
Further, still include data plate height detecting device, data plate height detecting device includes second cylinder, data plate pick-up plate, third displacement sensor, second cylinder and base sliding connection, the data plate pick-up plate is fixed to be set up on the piston rod of second cylinder, and third displacement sensor sets up between the cylinder body of data plate pick-up plate and second cylinder, data plate pick-up plate level sets up, the vertical setting of piston rod of second cylinder, third displacement sensor are connected with the controller electricity respectively.
Further, still include binding post height detecting device, binding post height detecting device includes track board, slider, fourth displacement sensor, third spring, the fixed one side and the vertical setting that sets up at the data plate pick-up plate of track board, be equipped with vertical spout on the track board, be equipped with on the slider with spout complex lug, the slider slides on vertical direction for the track board, the top of track board is provided with a mounting panel, fourth displacement sensor sets up on the mounting panel, and fourth displacement sensor's telescopic link and slider fixed connection, the third spring sets up between slider and mounting panel, fourth displacement sensor is connected with the controller electricity.
Further, still include sorter, sorter includes slide and first conveyer belt, second conveyer belt, the third conveyer belt that from top to bottom layering distributes, the articulated upper end that sets up in base one side of slide, be provided with the third cylinder on the bottom plate of base, the piston rod tip of third cylinder is articulated with the bottom of slide, first conveyer belt, second conveyer belt, third conveyer belt set up the side at the slide free end, and the third cylinder is connected with the controller electricity.
Furthermore, one of the two first cylinders is provided with an installation block, the installation block is fixedly arranged on a piston rod of the first cylinder, and a cylinder body of the second cylinder is fixedly arranged on the installation block.
Furthermore, the number of the third cylinders is two, and the third cylinders are respectively arranged at the front end and the rear end below the sliding plate.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
1. according to the invention, the accurate positioning of the mutual inductor to be detected is realized through the positioning device, a solid foundation is laid for measurement, the diameter of the excircle is measured through the excircle detection device, the distance between the base and the circle center of the excircle is detected through the base detection device, so that the height of the excircle and the diameter of the excircle of the mutual inductor are measured, screening is carried out according to the size standard required by the verification of the mutual inductor, and the phenomena of mutual inductor falling and over-tolerance of verification data caused by the difference of the external dimensions of the mutual inductor in the verification process are effectively avoided.
2. The invention measures the height of the nameplate position through the nameplate height detection device, measures the height of the wiring terminal through the wiring terminal height detection device, transmits detection data to the controller, and the controller is divided into three categories after identification: firstly, the product is qualified; secondly, failing to meet the requirements, but not enabling any dimension to be smaller than the standard range; and thirdly, failing to meet the requirement that at least one dimension is smaller than the standard range. Wherein the first type is qualified and can be directly used; the second type is unqualified, but the purpose of qualification can be achieved again through the processing of reducing the size such as grinding; the third category is not qualified and cannot be reprocessed. And the mutual inductors of three different types are slid into different conveyor belts through the sorting device, so that sorting is realized.
Drawings
FIG. 1 is a schematic perspective view of the present invention with the conveyor belt removed;
FIG. 2 is an enlarged view of I in FIG. 1;
FIG. 3 is a front view of the present invention;
FIG. 4 is a top view of the condition of FIG. 1;
FIG. 5 is a cross-sectional view A-A of FIG. 3;
FIG. 6 is a perspective view of the instrument transformer;
FIG. 7 is a perspective view of the present invention in a measuring state;
in the figure, a base 1, a positioning device 2, a first cylinder 21, a first bracket 22, a positioning pin 23, an outer circle detecting device 3, a second displacement sensor 31, a nut 32, a second spring 33, a base detecting device 4, a supporting plate 41, a first spring 42, a first displacement sensor 43, a nameplate height detecting device 5, a second cylinder 51, a nameplate detecting plate 52, a third displacement sensor 53, a connecting terminal height detecting device 6, a track plate 61, a slider 62, a fourth displacement sensor 63, a third spring 64, a mounting plate 65, a sorting device 7, a first conveyor belt 71, a second conveyor belt 72, a third conveyor belt 73, a sliding plate 74, a third cylinder 75 and a mutual inductor 8 are shown.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention will be explained in detail by the following embodiments with reference to the attached drawings 1 to 7. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
The instrument transformer overall dimension identity testing device comprises a base 1, a positioning device 2, an excircle detection device 3, a base detection device 4 and a controller, wherein the positioning device 2 comprises two positioning pins 23 and two first cylinders 21, the positioning pins 23 are vertically arranged on the base 1, the instrument transformer is fixed in the horizontal direction by the positioning pins matching with two openings of the base on the instrument transformer, the first cylinders are arranged on the base 1 through first supports 22, the first cylinders are horizontally arranged, piston rods of the two first cylinders are positioned on the same straight line, the piston rods of the two first cylinders are oppositely arranged, conical fixing blocks are arranged at the end parts of the piston rods of the first cylinders 21, the first cylinders realize constant pressure through cylinder valves, namely the first cylinders do not extend any more after reaching a certain pressure and extend the piston rods of the first cylinders, the conical fixing block is matched with a circular through hole at the center of a circle of the mutual inductor to realize the fixation of the height of the mutual inductor, the base detection device 4 comprises a supporting plate 41, a first spring 42 and a first displacement sensor 43, the supporting plate 41 is provided with a through hole matched with the positioning pin 23, the supporting plate 41 penetrates through the positioning pin to realize the sliding connection with the positioning pin, the first spring 42 is arranged between the supporting plate 41 and the base 1, the first spring 42 gives an upward elastic force to the supporting plate, the first displacement sensor 43 is arranged on the base 1, a telescopic rod of the first displacement sensor 43 is fixedly connected with the supporting plate 41, the distance between the supporting plate and the base can be detected through the first displacement sensor, the mutual inductor is placed on the supporting plate, after the mutual inductor is completely fixed, the distance between the center of the mutual inductor and the bottom plate can be calculated by measuring the distance, the distance between the center of the circle of the mutual inductor and the base is always kept fixed, the distance between the base and the center of the mutual inductor is obtained by subtracting the height between the supporting plate and the base from the height between the center of the circle of the mutual inductor and the base, the outer circle detection device 3 comprises a second displacement sensor 31, the second displacement sensor 31 is installed on the base 1 and is arranged on a perpendicular bisector of a connecting line of two positioning pins 23, a nut 32 is arranged at the end part of a telescopic rod of the second displacement sensor 31, a second spring 33 is installed between the nut and the base 1, the telescopic rod of the second displacement sensor is provided with upward elastic force by the second spring 33, the telescopic rod of the second displacement sensor is contacted with the outer circle bottom end of the mutual inductor, so that the distance between the base and the outer circle bottom of the mutual inductor is measured, and the distance between the center of the circle of the, the first air cylinder 21, the first displacement sensor 43 and the second displacement sensor 31 are respectively and electrically connected with the controller, the accurate positioning of the mutual inductor to be detected is realized through the positioning device, a solid foundation is laid for measurement, the diameter of the excircle is measured through the excircle detection device, the distance between the base and the circle center of the excircle is detected through the base detection device, the height of the excircle and the diameter of the excircle of the mutual inductor are measured, screening is carried out according to the size standard required by the verification of the mutual inductor, and the phenomena that the mutual inductor falls and the verification data are out of tolerance due to the difference of the external dimensions in the verification process of the mutual inductor are effectively avoided.
Further, the nameplate height detection device 5 comprises a nameplate height detection device 5, the nameplate height detection device 5 comprises a second air cylinder 51, a nameplate detection plate 52 and a third displacement sensor 53, the second air cylinder 51 is connected with the base 1 in a sliding mode, the nameplate detection plate 52 is fixedly arranged on a piston rod of the second air cylinder 51 through a connecting plate, the second air cylinder achieves constant pressure through an air cylinder valve, namely the second air cylinder does not retract after reaching certain pressure, the nameplate detection plate is driven to be attached to a nameplate of a mutual inductor through the second air cylinder, the third displacement sensor detects the moving distance of the nameplate detection plate from a fully extended state to a state of being attached to the nameplate when the air cylinder piston rod is in the fully extended state, and the distance from the moving distance of the nameplate detection plate to the center of the mutual inductor is the distance from the moving distance of the nameplate detection plate to the center of the, the third displacement sensor 53 is arranged between the nameplate detection plate 52 and the cylinder body of the second cylinder 51, the nameplate detection plate 52 is horizontally arranged, the piston rod of the second cylinder 51 is vertically arranged, and the second cylinder 51 and the third displacement sensor 53 are respectively and electrically connected with the controller.
Further, still include binding post height-detecting device 6, binding post height-detecting device 6 includes track board 61, slider 62, fourth displacement sensor 63, third spring 64, track board 61 is fixed to be set up in one side and the vertical setting of data plate pick-up plate 52, be equipped with vertical spout on the track board 61, be equipped with on the slider 62 with spout complex lug, slider 62 slides in vertical direction for track board 61, the top of track board 61 is provided with a mounting panel 65, fourth displacement sensor sets up on mounting panel 65, and fourth displacement sensor's telescopic link and slider 62 fixed connection, third spring 64 sets up between slider 62 and mounting panel 65, fourth displacement sensor 63 is connected with the controller electricity. The third spring 64 gives a downward elastic force to the slider, and in the process that the nameplate detection plate 52 moves downwards to be attached to the nameplate, as the wiring terminal is higher than the nameplate, the slider is blocked by the wiring terminal to move downwards, the height difference between the nameplate and the wiring terminal is detected by the fourth displacement sensor, so that the distance between the wiring terminal and the circle center of the mutual inductor is detected, and the height of the wiring terminal is measured by the wiring terminal height detection device.
Further, still include sorter 7, sorter 7 includes slide 74 and from top to bottom layering first conveyer belt 71, second conveyer belt 72, the third conveyer belt 73 that distributes, the articulated upper end that sets up in base 1 one side of slide 74, be provided with third cylinder 75 on the bottom plate 11 of base 1, the piston rod tip of third cylinder 75 is articulated with the bottom of slide 74, and the free end through the flexible control slide of third cylinder is at different heights, first conveyer belt 71, second conveyer belt 72, the side of third conveyer belt 73 setting at slide 74 free end, the quantity of third cylinder 75 is two, sets up respectively in the front and back both ends of slide 74 below, and third cylinder 75 is connected with the controller electricity. The controller classifies the transformers into three categories after recognizing the received data: firstly, the product is qualified; secondly, failing to meet the requirements, but not enabling any dimension to be smaller than the standard range; and thirdly, failing to meet the requirement that at least one dimension is smaller than the standard range. Wherein the first type is qualified and can be directly used; the second type is unqualified, but the purpose of qualification can be achieved again through the processing of reducing the size such as grinding; the third category is not qualified and cannot be reprocessed. And the mutual inductors of three different types are slid into different conveyor belts through the sorting device, so that sorting is realized.
Furthermore, one of the two first cylinders is provided with an installation block 54, the installation block 54 is fixedly arranged on a piston rod of the first cylinder, a cylinder body of the second cylinder 51 is fixedly arranged on the installation block 54, and the second cylinder slides relative to the base through the extension and retraction of the first cylinder, so that the second cylinder slides and moves away after the measurement is completed, the mutual inductor is conveniently taken out and a new mutual inductor is put in for measurement, the cost is saved and the energy loss is reduced compared with the case that a power device is additionally arranged.
The specific using process of the invention is as follows:
penetrate two openings on the mutual-inductor 8 base on the locating pin, the base of mutual-inductor 8 is placed in backup pad 41, and the button on the through-hole start-up control ware starts measuring procedure, and the workman takes off the mutual-inductor from the locating pin and places on the slide after the measurement is accomplished, and the controller is categorised the mutual-inductor through detecting data, makes the free end setting of slide realize the classification to the mutual-inductor in the conveyer belt top of difference through control third cylinder.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and various modifications and variations which do not require inventive efforts and which are made by those skilled in the art are within the scope of the present invention.
Claims (6)
1. The mutual inductor overall dimension identity testing device is characterized by comprising a base (1), a positioning device (2), an outer circle detecting device (3), a base detecting device (4) and a controller, wherein the positioning device (2) comprises two positioning pins (23) and two first cylinders (21), the positioning pins (23) are vertically arranged on the base (1), the first cylinders are arranged on the base (1) through first supports (22), the first cylinders are horizontally arranged, piston rods of the two first cylinders are positioned on the same straight line, the piston rods of the two first cylinders are oppositely arranged, conical fixing blocks are arranged at the end parts of the piston rods of the first cylinders (21), the base detecting device (4) comprises a supporting plate (41), a first spring (42) and a first displacement sensor (43), through holes matched with the positioning pins (23) are arranged on the supporting plate (41), the supporting plate (41) penetrates through the positioning pin to realize sliding connection with the positioning pin, the first spring (42) is arranged between the supporting plate (41) and the base (1), the first displacement sensor (43) is arranged on the base (1), the telescopic rod of the first displacement sensor (43) is fixedly connected with the supporting plate (41), the outer circle detection device (3) comprises a second displacement sensor (31), the second displacement sensor (31) is arranged on the base (1), and is arranged on the perpendicular bisector of the connecting line of the two positioning pins (23), the end part of the telescopic rod of the second displacement sensor (31) is provided with a nut (32), a second spring (33) is installed between the nut and the base (1), and the first air cylinder (21), the first displacement sensor (43) and the second displacement sensor (31) are electrically connected with the controller respectively.
2. The instrument transformer overall dimension identity testing device as claimed in claim 1, further comprising a nameplate height detecting device (5), wherein the nameplate height detecting device (5) comprises a second air cylinder (51), a nameplate detecting plate (52) and a third displacement sensor (53), the second air cylinder (51) is slidably connected with the base (1), the nameplate detecting plate (52) is fixedly arranged on a piston rod of the second air cylinder (51), the third displacement sensor (53) is arranged between the nameplate detecting plate (52) and a cylinder body of the second air cylinder (51), the nameplate detecting plate (52) is horizontally arranged, the piston rod of the second air cylinder (51) is vertically arranged, and the second air cylinder (51) and the third displacement sensor (53) are respectively electrically connected with the controller.
3. The instrument transformer overall dimension identity testing device according to claim 2, further comprising a terminal height detecting device (6), wherein the terminal height detecting device (6) comprises a track plate (61), a sliding block (62), a fourth displacement sensor (63) and a third spring (64), the track plate (61) is fixedly arranged on one side of the nameplate detecting plate (52) and is vertically arranged, a vertical sliding groove is arranged on the track plate (61), a protruding block matched with the sliding groove is arranged on the sliding block (62), the sliding block (62) slides in the vertical direction relative to the track plate (61), a mounting plate (65) is arranged at the top of the track plate (61), the fourth displacement sensor is arranged on the mounting plate (65), a telescopic rod of the fourth displacement sensor is fixedly connected with the sliding block (62), and the third spring (64) is arranged between the sliding block (62) and the mounting plate (65), the fourth displacement sensor (63) is electrically connected with the controller.
4. The instrument transformer overall dimension identity testing device according to claim 1, further comprising a sorting device (7), wherein the sorting device (7) comprises a sliding plate (74) and a first conveyor belt (71), a second conveyor belt (72) and a third conveyor belt (73) which are distributed from top to bottom in a layered manner, one side of the sliding plate (74) is hinged to the upper end of one side of the base (1), a third cylinder (75) is arranged on the bottom plate (11) of the base (1), the end portion of a piston rod of the third cylinder (75) is hinged to the bottom end of the sliding plate (74), the first conveyor belt (71), the second conveyor belt (72) and the third conveyor belt (73) are arranged on the side edge of the free end of the sliding plate (74), and the third cylinder (75) is electrically connected with the controller.
5. The instrument transformer overall dimension identity testing device according to claim 2, characterized in that one of the two first air cylinders is provided with a mounting block (54), the mounting block (54) is fixedly arranged on the piston rod of the first air cylinder, and the cylinder body of the second air cylinder (51) is fixedly arranged on the mounting block (54).
6. The instrument transformer overall dimension identity testing device according to claim 4, wherein the number of the third cylinders (75) is two, and the third cylinders are respectively arranged at the front end and the rear end below the sliding plate (74).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810700546.6A CN109078860B (en) | 2018-06-29 | 2018-06-29 | Mutual inductor overall dimension identity testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700546.6A CN109078860B (en) | 2018-06-29 | 2018-06-29 | Mutual inductor overall dimension identity testing device |
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| CN109078860B true CN109078860B (en) | 2020-07-31 |
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| CN204963744U (en) * | 2015-08-24 | 2016-01-13 | 重庆市璧山区四通机械厂 | Main hub slot pitch verifying attachment |
| CN204924164U (en) * | 2015-09-17 | 2015-12-30 | 常州刘国钧高等职业技术学校 | Utilize measuring tool that holds bars chi and measure major diameter work piece |
| CN205620485U (en) * | 2016-04-29 | 2016-10-05 | 国网山东省电力公司电力科学研究院 | A intelligent integrated detection device for low pressure current transformer integrates |
| CN105890565A (en) * | 2016-07-01 | 2016-08-24 | 成都市龙泉通惠实业有限责任公司 | Device for detecting groove depth of piston body |
| CN205981086U (en) * | 2016-08-30 | 2017-02-22 | 三门峡中原量仪股份有限公司 | Utensil is examined to high accuracy screw rod measurement over pins |
| CN107543475A (en) * | 2017-08-21 | 2018-01-05 | 上海奥林汽车配件有限公司 | A kind of detection means of engine boring cover external diameter and circularity |
| CN207446774U (en) * | 2017-11-01 | 2018-06-05 | 温州微特电子有限公司 | A kind of miniature transformer sorting mechanism |
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|---|---|
| CN109078860A (en) | 2018-12-25 |
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