Product category:
CNC automatic lathes
News Release from: Citizen Machinery UK | Subject: C16 CNC sliding head auto
Edited by the Manufacturingtalk Editorial
Team on 29 November 2002
Two extra axes boost sliding head auto
capability
CNC sliding head automatic lathe range includes an 11-axis model; two extra axes significantly boost productivity through adding versatility to the three tool simultaneous machining capability.
Citizen has extended the capability of its C16 CNC sliding head auto with the 11-axis Type IX As part of the enhanced specification, now available from NC Engineering of Watford, two further axes are added which significantly boosts productivity through added versatility to the three tool simultaneous machining capability on parts up to 16 mm diameter
This article was originally published on Manufacturingtalk on 18 Jul 2001 at 8.00am (UK)
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Sliding head lathe uses three tools simultaneously
Spearheading the introduction of a new generation of sliding head automatic lathes, the Citizen C16 has 22 tool positions and 10,000 revs/min main and secondary spindles.
Sliding head auto uses three tools at once
The added versatility of adding two further axes to a CNC sliding head automatic lathe allows the use of three-tool simultaneous machining on parts up to 16mm diameter.
In addition, the C16-IX is now able to perform helical milling cycles or in-cycle machining of features set at an angle to the centre line of the part.
The Citizen C16 has proven to be a winning combination by being compact and very cost-effective with high operational flexibility.
The machine can carry up to 22 tools, has both main and sub 10,000 revs/min spindles and the ability to reduce floor-to-floor times by overlapped cycles and utilising three tools in cut at the same time.
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In a subcontrator's view, its latest mill/turn centre stands out for its powered tooling ability to mill and drill and in particular, through the added flexibility from its two Y-axis cross feeds.
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When Target Sports bought its first Citizen B12 Type V, CNC sliding headstock lathe, it wanted to machine high quality brass dart bodies - it was quickly followed by a second machine.
Sliding heads raise productivity by two-thirds
To help meet growing demands for torque control tooling, MHH invested in two Citizen sliding head lathes from NC Engineering, and is now achieving an average 65 per cent higher productivity.
Now with the addition of a further Z2 axis to the six station opposed tool post which has six tools facing the main and six the secondary spindle and adding another X3 axis to the sub-spindle, the capability to simultaneously machine with three tools is enhanced.
This allows, for instance, a turning cycle and two drilling or end working operations to be performed on the front and back of the component at the same time.
The flexibility of the tooling and spindle layout of the C16 is high and within the machine frame, a high speed positioning two-axis tool carrying yoke is able to mount four rotary tools while a perpendicular toolpost holds six turning tools.
In addition, a 50mm diameter slitting spindle can be mounted on the toolpost and an 8,000 revs/min end face drilling spindle has + 10 (degrees) of angle adjustment.
To complement the yoke and perpendicular tool carriers, the opposed tool post, now has two-axis positioning for the 12 end working tool positions.
Maximum cutting length of the C16 is 200mm.
However, with the optional long workpiece unit, components up to 400mm in length can be machined.
The main spindle with C-axis is driven by 2.2kW motor and the sub- spindle also with C-axis has a 0.75kW drive with the added capability of moving in two axes.
The rotary tool drive also has a 0.75kW, AC spindle motor giving 8,000 revs/min with a maximum drilling diameter of 5mm and M4 tapping capacity using synchronous or differential routines.
Access to the working area is easy with a two-section 'R' style lift up and counter balanced guard giving a total single access point to the tooling area.
A separate lift up guard is used for the headstock section.
As with the current Citizen sliding head automatic lathe range, all axes are totally servo driven with the advantage of reduced response time to control sequences and contributes to reductions in cycle times of up to 25 per cent against previous machine operational systems.
Further reductions in cycle times can also be achieved by specifying Cool Blaster, the 140 bar (2,000 psi) high pressure coolant system which helps swarf control, especially on deep holes, allowing speeds and feeds to be increased on difficult to machine materials, extending tool life and contributing to a stable process for unmanned running. Request a free brochure from Citizen Machinery UK ...
(This was Manufacturingtalk's Top Story on 28 November 2002).
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