Dr. Münning Hi-Tech-Entwicklungen

Automated Valve Seat Inserts Inspection Machine
short description

Computer-aided 100% quality control

Size measurement of outer diameter and grinded height by two digital length gauges with 0.0005mm accuracy

Optical size measurement of all outer finished surfaces based on their edges with an optical resolution of 0.025mm

Complete optical surface error detection on all outer finished surfaces by enhanced image processing

Crack , cavity and texture error detection

Throughput of up to 90 Valve Seat Inserts per minute, depending on the size

Change from one Valve Seat Insert type to another in less than ten minutes

Enhanced self-control and diagnostic functions, automatic logging of errors

The whole system is computer controlled

Image processing, user interface and machine control with one single multiprocessor computer

All data is stored on PCMCIA-Cards for easy updating and managing the system

Easy to use, graphical menu-based program with online help functions

Valve Seat Insert drawing, all signals, images and evaluation data are displayed in real time on the color monitor

Network capability

Second optimized version

Technical Data

General

Valve Seat Insert outer diameter: 20 - 55mm, accuracy approx. 0.0005mm
Valve Seat Insert height : 4 - 10mm, accuracy approx. 0.0005mm
Time : depends on the size, better than 1part/sec.

Side detection, orientation

Laser : visible, red, 1mW
Camera : 64pixel line

Optical inspection

CCD Cameras : 3pcs. with built-in illumination by halogen lamps
Computer controlled illumination depending on the surface quality
Camera resolution : 0.025mm
Camera field of vision : 12.5 mm
Computer processed video data and real time display of detected errors and their dimensions on the monitor
Programable reject error sizes for each surface and edge

Crack, cavity and texture inspection

outer diameter : 8 track magnetic head
inner diameter : hall effect sensor
Magnetizing current : approx. 180A

Outputs

outer diameter and height over tolerance reject : one on the left side
outer diameter and height under tolerance reject : one on the left side
Optical dimensions, crack, cavity, texture, surface errors : 4 on the bottom
O.K. parts : one on the right side

Electronics

Modular setup, 19" rack
Power supply : 230-480V, 50-60Hz, approx. 300W, country specific versions availible
Built-in dual trace oscilloscope

Computer

Housing : 19" on slides
Color monitor

Housing

Dimensions : approx. 1100x1200x600mm
Weight : approx. 120kg
Glass doors at front and backside, removeable side walls of steel

Mechanics

All movements by linear motion guides and bearings
Easy exchangeable maintenance-free parts

Network

'Hold' output for the preceding machine (e.g. feeder)
'Hold' input from the successive machine (e.g. packaging equipment)
Connection for a computer network

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