The cams for radial slides and frontal slides mounted on the Gildemeister multi-spindle automatic lathe model GM32, GM35, GM42, are interchangeable with each other and the same cam with the same code can be mounted to perform a straight movement of the radial slide and the frontal slide.

How can I calculate the working stroke of a radial and frontal slide of a cam.

From the diagram in the product, the working angle of 165°, with the exception of cam code 3729101, diagram shows an inclined line that corresponds to the working stroke, radial slide movement or frontal slide movement with which the cam has been manufactured. The stroke can be viewed and measured with a caliper, noting the start and end dimension of the work.
When the cam is mounted and fixed on the radial cam disc, we can see that there is a reference notch on the lever holder and numbers ranging from 0.4 to 0.9 on the adjustable lever.

By making the product between the stroke of the cam and the position of the number screen-printed on the movable lever and the fixed notch, we can determine the actual stroke of our slide exactly.

Example: Cam 3729104 stroke 10mm mounted on radial slide with notch coinciding with the number 0.6 on the lever, the radial slide will perform a stroke of 10 x 0.6 = 6mm.

Front levers have exactly the same method as radial cams. In practice we have a groove on the lever with a number index ranging from 0.9 to 1.8. Based on the position of the pivot axis of the straightedge in relation to the number, by making the product of the number between the centre of the pivot and the lever, we will obtain the actual stroke and movement of the front slide.

Example: Cam 3729104 stroke 10mm mounted on radial slide with axis coinciding with the number 1.4 on the lever, the radial slide will perform a stroke of 10 x 1.4 = 14mm.

How to mount a cam

The cam discs for the radial slides and for the front slides on which the cams are mounted are identical to each other except for the increasing numbering of the disc, which can be clockwise or anticlockwise. This numbering indicates the correct direction of camshaft rotation, so that the operator can mount the cam correctly according to the direction of shaft rotation. Each hole in the disc corresponds to 18° of the camshaft angle, which also allows fitting in advance or behind the initial timing. Standard cams also have unnumbered holes that allow the cam to be offset by as much as 6° or 12° from the initial assembly.

Chipbreaker cams

During turning operations on a Gildemeister mechanical multi-spindle lathe of long-chip materials (CW510, lead-free brass, aluminium and aluminium alloys, stainless steels), Tadaah manufactures chip-breaker cams, which are able to break chips during turning operations. We are able to perform up to a maximum of more than 20 discharges, drastically reducing the chip length, facilitating its evacuation from the work area and conveying the chip to the swarf conveyor.

Advice on using cams for Gildemeister GM32, GM35, GM42

The cams made by Tadaah allow the operator that when changing cams, adjusting lever ratios for radial strokes, adjusting strokes for frontal strokes, the final point of arrival of the cam remains unchanged or with a very small error.

This technical information can be very useful to the operator and allows considerable savings during the adjustment of measurements on the workpiece.