12.02.2024

Hatebur COLDmatic: Fast tool changing at the press of a button

The tool-changing concept Variblock has become established at Hatebur. It enables all tools to be replaced as a single unit. Retooling times are therefore optimized and operators benefit from better ergonomics.

Reducing retooling times

The Variblock module is an exchangeable quick-locking module with which self-centring tool mounting blocks, which are referred to as multiblocks, can be assembled. This module can be hydraulically locked at the press of a button based on machine visualization. As a result, not every tool has to be individually removed from the machine by the operator, thus reducing retooling times overall and increasing ease of use for personnel.

Repeatability as the key – the system in detail

The lateral positioning of the Variblock module in the machine is achieved via a spherical positioning pin. The height positioning is carried out via securely mounted mechanical stops which guarantee extremely high repetition accuracy. The locking force required for the task is produced by locking tabs, with the module being hydraulically lowered onto the height stops.

Heat expansion? No problem!

Other press manufacturers, in quick-locking systems, often rely on wedge locking systems in which the quick-locking module is supported on the body frame. As a result of process- induced heat expansion, in such systems, the centring between the punch and die changes, which can in turn lead to parts that are not dimensionally stable. To avoid this, at Hatebur we have deliberately opted for central positioning of the module with a ball pin. The tools are also separated from one another by the individual block mounts so that adjacent stages cannot influence one another through heat expansion.

14.05.2024

Metform and Hatebur write next chapter of success story

The Hatebur HOTmatic AMP 20 N has replaced a 1976 Hatebur AMP 20 in the workshop of hot forging expert Metform, taking production to a whole new level.
Read more
08.05.2024

Brass production on the AMP 20 S

The subject of hot forming often revolves around the processing of steel. Nevertheless, the second most frequently used material should not be ignored: Every fourth Hatebur HOTmatic AMP 20 S delivered is used to produce forging blanks made of brass.
Read more
04.03.2024

Vocational training at Hatebur

Hatebur has been training apprentices since 1954. This means that young people receive solid theoretical and practical training in the mechanical engineering industry. In doing so, the company provides young people with prospects for the future and, if needed, can hire well-educated specialists after they finish their apprenticeship.
Read more