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Aiming at the positioning accuracy control problem in the running of the assembly machine for assembled camshaft, a kind of position controller based on the feedforward‐feedback control of speed and acceleration is designed.

It combines feedforward‐feedback control with the quartic displacement curve acceleration/deceleration algorithm.

The axial dimension and the phase angle of the cam obtained after being assembled is checked. The result shows that for each type of camshaft, the error of the axial dimension of the cam is less than ±0.2mm and the error of the phase angle of the cam is less than ±30′. In addition, production efficiency is greatly improved (the assembling time is 90‐120S/piece).

The paper combines feedforward‐feedback control with the quartic displacement curve acceleration/deceleration algorithm for the first time.

To report on innovations in machine vision at two important international exhibitions held in Germany in May 2006.

The exhibitions were each visited and innovations sought and reported.

Many of the innovations were in the field of 3D image capture and processing.

All of the reported innovations are new and will be of interest outside Germany.

THE Mercedes‐Benz Model DB‐601A aero‐engine is a development of the Daimler‐Benz Aktiengesellschaft of Stuttgart, Germany, a firm which lias been engaged in the manufacture of automotive and aero‐engines for over fifty years. During the first World War the Daimler Motorcn Gesellschaft of Stuttgart produced the famous Mercedes aero‐engines iii three 6‐cylindcr types with ratings of 160 horse‐power, 180 horse‐power, and 260 horse‐power. Equally renowned were the 160 horse‐power and 230 horse‐power 6‐cylindcr aero‐engines built by Benz and Company in Mannheim. After the war, and as a result of the economic and financial crisis which brought almost complete stagnation to the automotive industry in Germany during the early twenties, these two companies were practically forced to combine their activities in order to survive. Accordingly in 1926 a merger was consummated between the Daimler and Benz organizations. Thus came into being the firm of Daimler‐Benz A.G. and their product, the Mercedes‐Benz line of automotive vehicles and aircraft power plants.

Describes the parts handling system used by Rover for engine components. Discusses the reasons for the choice of system, delivery schedule, and the function and specifications of the pallet and carrier systems. Concludes that the systems meet Rover′s needs of total quality, minimum work‐in‐progress, damage‐free handling, and are proving reliable.

The French car company's highly automated engine machining and assembly plant in Normandy features a lot of equipment supplied by its own manufacturing companies. Brian Rooks' report looks mainly at the cylinder head assembly line.

To boost productivity in car body assembly, the Japanese firm Mazda has installed robots that can handle panels as well as weld them in place. It has also extended the use of large articulated welding robots.

THE syllabus issued by the Air Ministry stipulates that the qualifications required to be held by the candidate for a ground engineer's licence in “C” category are: (1) an intimate knowledge of the constructional and assembly details of the engine to be included in the licence; and (2) the installation, operation, and maintenance of that engine in an aircraft. This specialised knowledge must be obtained by practical experience in the engine shop, aircraft shop, and on the aerodrome, and proofs of actual engagement in these spheres will be required by the Air Ministry Examining Board.

Marwin Production Machines is moving more and more into automation particularly, but not confined to, assembly. Brian Rooks has been examining the activities of the company.

Design for production and full automation gives Nippondenso a tremendous boost in reduced costs in the manufacture of relays, while its compressor line mixes man and machine.