Full-automatic detecting system and method for transformer

Patent metadata

Field	Value
Publication number	US-9562916-B2
Application number	US-201113980556-A
Country	US
Kind code	B2
Filing date	Nov 25, 2011
Priority date	Jun 1, 2011
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A full-automatic detecting system and method for a transformer. The system comprises a material delivery line; a feed device; a detection delivery line; insulating test devices; error detecting devices; a laser marking device; a discharge device; and a detection management system. The insulating test devices, the error detecting devices, and the laser marking device are sequentially arranged beside the detection delivery line. The material delivery line, the detection delivery line, and the devices work in coordination, to realize full-automatic detection of the transformer, avoid manual detection errors and improve the sorting accuracy.

First claim

The invention claimed is:

1. A system for examining transformers full-automatically, comprising: a material conveying line, a material charging device, an examination conveying line, an appearance inspection device, an insulation test device, an error examining device, a laser marking device, a material discharging device, and an examination management system; wherein the insulation test device, the error examining device, and the laser marking device are sequentially arranged along a direction of advance of the examination conveying line;
the material conveying line is adapted to deliver turnover boxes loaded with transformers to be examined from a storage system to a material charging station, and deliver turnover boxes loaded with transformers having been examined located at a material discharging station back to the storage system;
the material charging device, located beside the material charging station of the material conveying line, is adapted to move transformers located at the material charging station on the material conveying line to the examination conveying line;
the examination conveying line is adapted to move transformers to stations corresponding to respective devices;
the insulation test device is adapted to detect insulation resistances, test power frequency withstand voltages and test inter-turn insulations of transformers;
the error examining device is adapted to detect basic errors and magnetic saturation margins of transformers;
the laser marking device is adapted to imprint identification information on qualified transformers;
the material discharging device, located beside the material discharging station on the material conveying line, is adapted to transfer transformers having been examined from the examination conveying line to the material conveying line; and
the examination management system is adapted to control coordinate operation of respective devices, the material conveying line and the examination conveying line and to sort transformers accurately according to feedback information from the insulation test device and the error examining device.

2. The system for examining transformers full-automatically according to claim 1 , further comprising an appearance inspection device located ahead of the insulation test device, and adapted to take photos of the appearance of each transformer and checking.

3. The system for examining transformers full-automatically according to claim 2 , wherein the material conveying line comprises a frame body, a driving motor arranged on the frame body for driving a belt to move forward, a belt connected with a rotating shaft of the driving motor, and/or a stop mechanism arranged on the frame body for stopping transformers on the belt accurately, and/or a counter arranged on the frame body for counting transformers, and/or a bar code scanner arranged on the frame body for entering information of transformers and a sorting mechanism for sorting transformers; an input end and an output end of the material conveying line are adapted to connect an entrance and an exit of the storage system respectively.

4. The system for examining transformers full-automatically according to claim 3 , wherein the material charging device comprises a material charging robot for placing transformers to be examined from the material conveying line to the pallets on the examination conveying line precisely, the material charging robot is provided with a material charging manipulator, a controller for controlling the operation of the material charging manipulator, and a material charging fixture connected with an lower end of the manipulator; the material discharging device comprises a material discharging robot for placing transformers having been examined from the pallets on the examination conveying line to the material conveying line, the material discharging robot is provided with a material discharging manipulator, a controller for controlling the operation of the material discharging manipulator, and a material discharging fixture connected with a lower end of the material discharging manipulator.

5. The system for examining transformers full-automatically according to claim 4 , wherein each of the material charging robot and the material discharging robot is provided with a positioning platform for positioning transformers precisely, transformers are grasped from the material conveying line and are placed on the positioning platform of the material charging robot by the material charging manipulator for being positioned, and after having been positioned, the transformers are grasped again and placed onto the pallets located on the examination conveying line by the material charging manipulator.

6. The system for examining transformers full-automatically according to claim 5 , wherein each of the insulation test device and the error examining device comprises a second examining unit and a first examining unit which are sequentially arranged on the frame body beside the examining conveying line along the direction of advance of the examination conveying line;
connections between a power source and primary large current conductors of the first examining unit and the second examining unit are switched by means of a relay;
each of the first examining unit and the second examining unit comprises a primary wire connecting mechanism for bus-type current transformers, a primary wire connecting mechanism for multi-turn-type current transformers and a secondary wire connecting mechanism; and
both the primary wire connecting mechanism for bus-type current transformers and the primary wire connecting mechanism for multi-turn-type current transformers are capable of moving backwards and forwards, and are respectively arranged on both sides of examination conveying line when both the primary wire connecting mechanism for bus-type current transformers and the primary wire connecting mechanism for multi-turn-type current transformers are on standby.

7. The system for examining transformers full-automatically according to claim 6 , wherein the primary wire connecting mechanism for bus-type current transformers comprises a back and forth driving assembly for bus-type current transformers, an inlet side manipulator and an output side manipulator, pneumatic claws, and a core-penetrating copper bar,
the back and forth driving assembly for bus-type current transformers, is capable of moving backwards and forwards on the frame body;
the inlet side manipulator and the output side manipulator are connected with left and right ends of the back and forth driving assembly respectively and are capable of moving upwards and downwards;
the pneumatic claws are arranged at lower ends of the inlet side manipulator and the output side manipulator and can open and shut;
the core-penetrating copper bar, gripped by the pneumatic claws, is adapted to penetrate a plurality of bus-type current transformers;
outer sides of the pneumatic claws are provided with column-shaped copper heads for connecting with the large current conductor, the two pneumatic claws and the core-penetrating copper bar of the primary wire connecting mechanism for bus-type current transformers are capable of forming a closed circuit of bus-type;
the primary wire connecting mechanism for multi-turn-type current transformers comprises a back and forth driving assembly for multi-turn-type current transformers which is capable of moving backwards and forwards on the frame body, a plurality of connecting assemblies arranged side by side on the back and forth driving assembly for connecting in series primary sides of the corresponding multi-turn-type current transformers;
the connecting assembly comprises upper and lower conductive holding members capable of holding terminals on the primary side of multi

Assignees

• Wang Wei
• Zhu Jiong
• Zhang Yan
• Huang Jinjuan
• Wu Jian
• Li Xiong
• Zhou Yongjia
• Yan Huajiang
• Zhejiang Electric Power Corp

Inventors

• Wang Wei
• Zhu Jiong
• Zhang Yan
• Huang Jinjuan
• Wu Jian
• Li Xiong
• Zhou Yongjia
• Yan Huajiang

Classifications

• H01F41/00

  Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties · CPC title

• G01R31/01

  Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station (testing of cables continuously passing the testing apparatus G01R31/59; testing dielectric strength or breakdown voltage G01R31/12) · CPC title

• G01R31/027

  Physics · mapped topic

• G01N35/00584 Primary

  Control arrangements for automatic analysers · CPC title

• G01R31/62 Primary

  Testing of transformers · CPC title