Product category:
Horizontal machining centres (HMC)
News Release from: Mills Manufacturing Technology | Subject: Daewoo ACE HP Series horizontal machining centres
Edited by the Manufacturingtalk Editorial
Team on 03 September 2001
HMCs minimise non-cutting time and are
accurate
Exceptional value is claimed for the Daewoo ACE HP Series of horizontal machining centres from Mills Manufacturing Technology.
Exceptional value is claimed for the Daewoo ACE HP Series of horizontal machining centres from Mills Manufacturing Technology A large work envelope has been combined with very rigid construction and the use of powerful spindle and axis drive motors to offer high speed machining and fast traverse speeds
This article was originally published on Manufacturingtalk on 23 May 2001 at 8.00am (UK)
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Two opposing twin-turret lathes are in one
One of the most capable mill-turning machines ever built, has four turrets, two spindles and offers a total of 13 computer controlled axes.
The machines are therefore able to minimise non-cutting time while achieving high accuracy.
The ACE HP 500 and 630 models are of moving column, twin pallet, horizontal spindle design utilising high quality Meehanite cast iron for the bed and column.
X- and Y-axis movements are on the column, while Z-axis motion is on the pallet table.
Further reading
Small horizontal as rugged as the big models
Although the new Daewoo ACE HM500 horizontal machining centre is nominally a half-metre-cube machine, it is constructed using box section guideways normally found on larger machines
VMC machines vaporiser bodies from extruded stock
Anaesthesia equipment manufacturer, Penlon, is using a Daewoo vertical machining centre to produce vaporiser bodies from aluminium extrusions in-house.
The directly driven spindle unit is centrally supported on the column.
All linear axes use widely spaced linear roller bearing units, enabling rapid traverse of 40m/min on the HP 500 and 32m/min on the HP 630.
Programmable cutting feed rates are 20m/min and 16m/min respectively.
The standard pallet table offers one degree incremental positional index; a 0.001deg indexing table for full fourth axis operation is optional.
The refrigerated spindle, common to both machines, is a 30kW directly driven unit capable of rapid acceleration and speeds up to 12,000 rpm.
Spindle taper is ISO 50 and the standard bi-directional chain-type tool magazine can accommodate 40 tools.
Optional magazines for up to 196 tools can be specified.
Tool exchange is completed in two seconds with chip-to-chip time of about six seconds.
Daewoo has designed these machines to offer a generous work envelope comparable with the largest in their class; components up to 1,000mm diameter by 1,100mm tall can be accommodated on the HP 630, for instance.
The ACE HP 500 provides 800mm in X, 700mm in Y (vertical) and 750mm in Z.
Corresponding dimensions for the ACE HP 630 are 1,000mm, 800mm and 800mm respectively.
Maximum table loadings are 800kg on the HP 500 and one tonne on the HP 630.
Pallet exchange is completed in eight seconds on the HP 500 and 12 seconds on the HP 630; in both cases a four cone positioning system is used for precise alignment with a curvic coupling.
In addition to the standard rotary shuttle pallet change system, these machines are also available with a pallet magazine to allow extended periods of unattended working.
Other options available on the machines include preparation for five-axis operation, through-spindle coolant, and probing.
Glass scale linear measuring may be specified in place of the standard rotary encoders; however standard positioning accuracy is highly competitive at +/-5 micron over the full stroke with repeatability of +/-2 micron.
Available also is a smaller machining centre in the range, designated ACE HP 400.
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