This guide will outline the primary moving parts on a horizontal bending machine. By having an understanding of these components an operator will become more proficient in using the machine and a potential buyer will be able to make an informed purchase.
The Bending Former
The first part to consider when looking at a horizontal bending machine is the Bending Former, or mandrel. This is the shaped block around which the workpiece is bent. It’s the part that determines the radius of the bend, and as such, it is crucial that you use the correct former for the thickness of the material you are using and the required bend angle. Formers are generally changeable on most machines, so check what’s included with the basic machine.
The Clamping Jaw
The clamping jaw holds workpieces against the former. If the jaw is not set to the correct width or is worn on the faces then the workpiece will not be held sufficiently and can cause the workpiece to bend off- line. The amount of pressure that is required to bend workpieces of different profiles must also be considered.
The Pressure Die
The pressure die is the opposing die to the tube or bar on the outside of the bend. It is used to control the amount of squeeze that the bend will suffer and therefore control the amount of flare or ovalisation that occurs during the bend. A worn pressure die can lead to many problems with bends.
The Backstop Euromac Bending Machines is covered in more detail at https://www.cotswold-machinery-sales.co.uk/euromac-bending-machines/horizontal-bending-machines.
The backstop: This is a critical component that determines where the material will be positioned at the start of the bend. This must be set correctly to achieve consistent results with repeat items. This is easily set on Euromac Bending Machines but must be checked each time a different part is to be machined.
The Degree Scale
The degree scale on your horizontal bending machine must be set in order to achieve the required bend angle. In some cases the degree scale will feature a mechanical pointer; in other cases the angle will be displayed digitally. It is important to check whether the degree scale is set correctly before production is carried out.
The Work Support Arm
Work Support Arm – longer items of work are heavy and could sag and pull the work out of bend whilst it is being formed, the work support arm on horizontal bending machines can be raised to form a cradle to carry the weight of the work.
Knowing how good machinery works also means knowing how to safely use work equipment and machinery – refer to the HSE’s guidance on this.
Knowing the parts before you use or even buy a machine will save time, reduce waste and help you to avoid many mistakes.
