CN203259838U

CN203259838U - Automatic visual detection device used for piston assembling

Info

Publication number: CN203259838U
Application number: CN 201320276186
Authority: CN
Inventors: 林明星; 许刚; 范成勇; 管志光
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2013-05-20
Filing date: 2013-05-20
Publication date: 2013-10-30
Anticipated expiration: 2023-05-20

Abstract

The utility model provides an automatic visual detection device used for piston assembling. The device comprises a visual system, a programmable controller and an alarm. The visual system is formed by cameras, an image acquisition card and a computer. The cameras are arranged above each piston installing hole on an engine body. Each camera is connected with the image acquisition card. The image acquisition card is connected with the computer. The computer and the alarm are connected with the programmable controller. Various kinds of information of the assembled piston is set in the computer. When the piston is placed in a cylinder body, the visual system detects whether the information is completely consistent with the set information, sends a signal to the programmable controller and makes the engine body enter into a next station or be transported to a repair area so as to carry out repair and give an alarm. According to the device of the utility model, the visual system detects and controls an operation flow of the engine during a piston assembling process; the structure is simple; response time is short; an error is small; precision is high; mistake-proofing automatic detection of the engine piston can be well realized.

Description

The automatic vision pick-up unit that is used for Piston assembling

Technical field

The utility model relates to a kind of device for detection of the engine piston assembling, belongs to Piston assembling detection technique field.

Background technology

Piston assembling is the automatically important process link of assembling of engine.Because the individual requirement of vehicle user is strong, the utmost point may carry out the assembling of different types of machines in the short time, the assembly line rapid-action simultaneously, the phenomenon that just might exist piston to obscure in the spare part process, the indexs such as various piston weight, performance are inconsistent, will cause the engine overall performance to descend such as wrongly installed; In addition, can not to interfere with the top valve in order making in the piston movement process, to be designed with recessed shallow chamber at piston end surface, this recessed shallow cavity direction can not reverse in the assembling process, otherwise will cause " playing cylinder ".Although piston wrongly installed, anti-loaded phenomenon are uncommon, in case occur, consequence is serious.Existing detection method is by the manual sorting, and reliability is low, and is disturbed easily, cause undetected, false retrieval.

Summary of the invention

The utility model provides a kind of automatic vision pick-up unit that is used for accurately and reliably Piston assembling for the deficiency that detection technique in the available engine Piston assembling process exists.

Automatic vision pick-up unit for Piston assembling of the present utility model, adopt following technical solution:

This device, comprise vision system, Programmable Logic Controller (PLC) and alarm, vision system is comprised of video camera, image pick-up card and computing machine, video camera is arranged on each the piston mounting hole top on the engine body, each video camera all is connected with image pick-up card, image pick-up card is connected with computing machine, and computing machine and alarm all are connected with Programmable Logic Controller.

In computing machine, set the various information of the piston that assembles, in piston is placed in cylinder body, it is in full accord and assemble when correct that vision system detects on it information of information and setting, vision system sends signal to Programmable Logic Controller, make engine body enter next station, reprocess the zone and reprocess and pass through alarm equipment alarm otherwise vision system prompting Programmable Logic Controller, control engine body are transported to.

The utility model adopts PLC and vision system, detects the control engine operational scheme by vision system in the Piston assembling process, and is simple in structure, response time is short, and error is little, and precision is high, can realize better that the engine piston mistake proofing detects automatically, improve accuracy and the reliability of Piston assembling.

Description of drawings

Accompanying drawing is the structural principle synoptic diagram that the utility model is used for the automatic vision pick-up unit of Piston assembling.

Among the figure, 1. video camera, 2. image pick-up card, 3. Programmable Logic Controller (PLC), 4. computing machine, 5. printer, 6. alarm, 7. engine body.

Embodiment

As shown in drawings, the automatic vision pick-up unit for Piston assembling of the present utility model mainly comprises vision system, Programmable Logic Controller 3 and alarm 6, and vision system is comprised of video camera 1, image pick-up card 2 and computing machine 4.Each piston mounting hole top on the corresponding engine body 7 arranges an industrial video camera 1, and each video camera 1 all is connected with image pick-up card 2, and image pick-up card 2 is connected with computing machine 4, and computing machine 4 is connected with alarm and all is connected with Programmable Logic Controller 3.

When piston is placed in engine body 7 when interior, the information exchanges such as the sign on it and character are crossed each video camera 1 input computing machine 4, compare with the information of setting in the computing machine 4, when the model that requires, the information such as group are in full accord and assemble when correct, computing machine 4 sends signal to Programmable Logic Controller 3, Programmable Logic Controller 3 control corresponding mechanism make engine body 7 continue to flow to next station, when Piston assembling wrong, then computing machine 4 is pointed out Programmable Logic Controllers 3, control engine body 7 is transported to be reprocessed the zone and reprocesses, and by alarm 6 warnings, alerting signal shows at computing machine 4 screens, and the Piston assembling of indicating which cylinder is wrong and be which kind of mistake, can print testing result by the printer that is connected with computing machine 4 in case of necessity.

Claims

1. automatic vision pick-up unit that is used for Piston assembling, comprise vision system, Programmable Logic Controller and alarm, it is characterized in that: vision system is comprised of video camera, image pick-up card and computing machine, video camera is arranged on each the piston mounting hole top on the engine body, each video camera all is connected with image pick-up card, image pick-up card is connected with computing machine, and computing machine and alarm all are connected with Programmable Logic Controller.