Case study: Advanced CNC simulation for twist drills

cnc,cnc machines,cnc milling machines, cnc lathe,used cnc machines September 7th, 2009 by cnc machines cnc manufacturers Industries,cnc machine tools,cnc programming,cnc controller admin

CNC multi-axis grinding machines using NUM’s NUMROTOplus 3D simulation and control software are helping Miller Präzisionswerkzeuge GmbH in Germany to manufacture a new series of high-performance MAPAL-brand solid carbide twist drills.

The new drill tools employ complex optimised profiles to accelerate cutting speeds.

The NUMROTOplus software allowed Miller Präzisionswerkzeuge to visualise and optimise the complex machining process required to produce the new drills in 3D, before putting the new drill range into volume production.

“The NUMROTO features helped during the development of our latest MAPAL drill products, and we made extensive use of the advanced 3D simulation capabilities of NUMROTOplus software, including its tool collision monitoring procedures, to optimise our manufacturing process,” said Miller Präzisionswerkzeuge technical director, Ulrich Krenzer.

“We have used NUM’s CNC software for a number of years, and are now in the processing of running it out across all our machines. By effectively standardising on this one package, with a consistent user interface, we will reduce our personnel training costs and help maximise productivity, while maintaining the product quality for which we are renowned.”

To cope with demand, Miller Präzisionswerkzeuge recently doubled the size of its R&D and manufacturing operations at Altenstadt in Germany, culminating in the opening of a new 7000m2 production facility in November 2008.

The facility contains more than 40 CNC grinding machines equipped with the NUMROTOplus software – which operate for three shifts per day, 365 days of the year – making it one of the most modern solid carbide tool and drill production plants in the world.

It is widely acknowledged that more than 30 per cent of productive machine time is nowadays taken up by drilling operations. Typically, these include pilot drilling and pre-centring, drilling, reaming, countersinking, boring out, de-burring and thread cutting.

By combining some of these operations in a single step, it is possible to decrease machine time significantly, but only if the drilling tools feature task-optimised profile geometries – factors such as chip removal, heat dissipation and tool stability are critical.

The new MAPAL ‘Mega Speed Drill’ is designed for high speed drilling of steel and iron. It features an asymmetric tip, with reinforced cutting edges.

http://www.pacetoday.com.au/Article/Case-study-Advanced-CNC-simulation-for-twist-drills

/497200.aspx

Posted in CNC Drills, CNC Simulator | No Comments »

Why Glassman Develop The CNC Vertical Drilling And Milling Machine

cnc,cnc machines,cnc milling machines, cnc lathe,used cnc machines August 31st, 2009 by cnc machines cnc manufacturers Industries,cnc machine tools,cnc programming,cnc controller admin
With the developing of time and technology, there are more and more equipments been used in the glass processing industry, to gain survival and development a manufacture should behave more fast and the quality should be high.
What can a nice machine do for us?
1.To simplify the complex task
A nice machine can not only cope with more complex work but also achieve perfect processing results that normal machine can’t realize
.
For example (Pic. 1): A notch for glass door to fix in the hardware requires very high accuracy, and the following processing of each sides is very important, because the effect gives s directly impact to the following-up tempering and the breakage rate at the time of being installed.
To mill such a notch in a factory with laggard equipment would be completed by 2 or 3 machines with poor quality, high breakage rate and low efficiency. While with Glassman CNC Vertical Drilling and Milling Machine you can finish the whole work in one machine.
2.Achieving high accuracy and efficiency
High precision can help you gain high level customers, makes your factory working in line with international standards, playing a more important role in cost and labor saving, and winning in fierce competition.
Glassman can pass through strict test. Drill four holes in the four corner on two pieces of glass with same dimension then put the two pieces together, the result is that the holes in the same position completely.
The advantages of Glassman CNC Drilling and Milling Machine
At present most of factories who process flat glass cope with the work like drilling, milling and arising, and most of them were completed by the combination of drilling machines, water jets and horizontal working center, however there are many defects whether use water jet or drilling machine, such as low speed, poor accuracy or high breakage rate. In view of these problems and combined today’s latest trend of equipment for glass processing and industry leaders’ experience, Glassman spent 7 years, developed and introduced a perfect solution, that is CNC Vertical Drilling and Milling Machine. The sixth generation GM-BZX-VI can complete drilling, milling, arising in one step, greatly enhanced the efficiency and quality of work. Comparing with drilling machine and water jet, the GM-BZX-VI has the following advantages.
Compared with drilling machine
1.High speed: the routing speed of electric spindle in CM-BZX-VI can achieve 12000 rpm, and only takes 15 seconds to drill a hole on the glass with 8mm thickness, while ordinary drilling machine costs more than 30 seconds.
2.High precision: CNC Vertical Drilling and Milling Machine applied French NUM, the most advanced control system in the industry control(Bavelloni also use NUM), so the precision reach ±0.1mm, can meet higher processing requirement. However ordinary drilling machine is controlled by PLC, hardly to be accurate, and therefore causes a large number of substandard production, wasting the raw material and increasing unnecessary cost.
3.Humanization of structure design: the main working area of GM-BZX-VI is closed structural so that the cooling water would not splash everywhere during processing, ensure the recycle of the coolant water, not only saving water but keeping the plant clean and the safety of workers, match the European CE standard.
4.The CNC Vertical Drilling and Milling Machine can accomplish drilling, milling and arising in one time, rather than a ordinary drilling machine can only drill, then the glass must be transferred to other machine to finish the other works, so GM-BZX-VI significantly short the processing time, increase the efficiency, reduce damage caused by handling.
5.CM-BZX-VI essential equipment machine for a leader glass processor’s product line, since usually an automatic product line for flat glass is made up of cutting table, edging machine, washing machine, CNC vertical drilling and milling machine, tempered furnace, making a integrated product line, and this high degree of automation can not be obtained by ordinary drilling machine,
Comparing with water jet
1.Working speed: water jet cutting the glass by the carborundum which jetted by high pressure water, thus seriously affect the processing speed of the machine. While by CNC Vertical Drilling and Milling Machine, the speed of electric spindle can hit 12000rpm, driven the diamond tool routing fast, as a result the processing speed is two or three times as the water jet.
2.Al though water jet can do milling which is better than drilling machine, but it still can arise, therefore there is another procedure before tempering, not conductive to improve efficiency.
3.Because of water jet use the high pressure water to spout the carborundum during processing, so there would be lots of residual carborundum on the surface of glass, these residual carborundum make lots of nicks on the glass when glass being washed, seriously affected the quality of glass. At the mean time, then Low-E film was damaged, so the water jet can’t process Low-E glass.
4.Restricted by the processing characteristic water jet can not cope with large glass, but large glass is very popular wherever in the field of decorative glass or architecture glass, so the CNC Vertical Drilling and Milling Machine is more practical than water jet.
5.Most of water jet are horizontal makes it hardly to form a product line with other machines.
6.Compared with horizontal working center, vertical machine has more advantages, further more, in CNC Vertical Drilling and Milling Machine, the force on the glass is in a reasonable direction while processing, so the glass would be broken easily, more suitable for drilling and milling.
7. Humanization of structure design: the main working area of GM-BZX-VI is closed structural, keeping the plant clean and the safety of workers, match the European CE standard. When the water jet working the speed of the jetting water may hit 100-600m/s, and the water pressure may hit 196-294mpa when cutting the glass with a lot of noisy. This high pressure water may cut off human bone easily in case of be without of protective device, and if the water flied to human eyes, the eyes might be hurt.
Comparing with horizontal working center
1.Limited by the structure, horizontal working center drills holes with single drilling bit, therefore the effect would not be ideal, so there is rarely manufacturers use horizontal working center to drill holes.
2.Took less room, save the plant space. The vertical machine took more aerial space, so it will never take so much floor space like horizontal working center.
3.Recycling the water better. The processing area of the CNC Vertical Drilling and Milling Machine is closed structure, the coolant water generated during processing won’t spattered to everywhere and flow to the water case to be reused, realizing the purpose of recycling the water and coolant fluid, both saving the cost and keeping the plant clean.
4.Limited by the special structure like all the horizontal lathes, horizontal working center is not convenient to connect with other machines, unlike the vertical machine can connect in series with other machines to be a production line so that to save labor and time. That is a defect which horizontal CNC working center can not overcome.
5.Went without saying, CNC Vertical Drilling and Milling Machine is very convenient to loan and unload glass, not like the horizontal working center wasting too much time on handling the glass.
Though the above comparison it is not difficult to found that among many similar equipments the CNC Vertical Drilling and Milling Machine has outstanding feathers and advantages, therefore it is very popular by today’s flat glass processing industry, highly respected since it came out. It is also due to the complex of the technology only few companies including Glassman and several European companies. But it is well known that European equipments are very expensive, most factories can not afford that even if they are aware of advantages of the machine. Glassman now allow the realization of dreams of many factories of obtaining a CNC Vertical Drilling and Milling Machine. After 7 years development Glassman brought out GM-BZX-VI, the sixth generation production with mature and powerful function, stable capacity, the price is only one third of similar product from Europe while no less quality, even higher than some European equipments, that because that Glassman’s quality monitoring is start from the material stage.
Adhere to select high quality steel made by large company to make the main body of the machine, heat treat then painting so the structure is strong and looks beautiful. Unique beehive internal structure meet European CE standard, never distorted even alternated hot and cold.
The high precession is comes from the machine’s advanced components:
World top control system-French NUM.
YASKAWA servo-motor made in Japan
Simens and Schneider electric parts Taiwan ABBA ball screw and slide way
Software Super CAD/CAM developed by Glassman independently.
Glassman paid attention to details, all body parts come into contact with water are stainless steel, so as the standard parts are stainless steel, all pipe fittings come from Sino-foreign joint ventures.
Keep moving forward
Providing the market with the latest and optimal solutions constantly is the Business purpose of Glassman, in future Glass will remain committed to study the status of China market, keep innovating, and provide high quality and not expensive CNC machines for China flat glass processing industry, do more contribution to the development of national industries.
More information, please contact with:
Glassman Glass Machinery Technology Co., Ltd.
JINMA INDUSTRY ZONE GAOLIYING, SHUNYI DISTRICT, BEIJING 101302, P. R. CHINA
Tel: + 86-10-51679581
+ 86-10-51679178
Fax: +86 10 51679176
Email: glassman606@glassman.com.cn
glassman@glassman.com.cn
http://www.glassonweb.com/news/index/9954/

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CNC 4-axis machine resharpens drills in seconds

cnc,cnc machines,cnc milling machines, cnc lathe,used cnc machines April 4th, 2009 by cnc machines cnc manufacturers Industries,cnc machine tools,cnc programming,cnc controller admin

CNC 4-axis drill sharpener with an easy-to-use touch screen panel easily reproduces the complex, high quality points found on today’s premium HSS and carbide drills.

The 1st MTA company demonstrated the Darex XPS-16 CNC drill sharpener, which, said the company, carries out the advanced CNC 4-axis sharpening of a wide range of twin flute drill point types using simple, one-touch operation.

The XPS-16’s advanced CNC operation enables it to easily reproduce the complex, high quality points found on today’s premium HSS and carbide drills.

1st MTA told manufacturingtalk that an easy-to-learn touchscreen interface allows even novice users to produce perfectly re-sharpened drill points in seconds.

The XPS-16 is suitabel for conical, four facet, split point and radius split point bits with angles from 118-150 deg as standard.

A 90-118deg add-on option is also available.

1st MTA said that the XPS-16 will sharpen HSS, cobalt and carbide drills from 3-16mm diameter and 50-220mm long.

It has been designed specifically for heavy duty use within busy machine shop environments and is can sharpen more than 400 drills/day.

* Easy operation - a blunt drill is first inserted into the sharpener’s chuck and the required drill point type selected using a simple touchscreen panel.

On initiation of the sharpening cycle, three independent electronic sensors automatically detect the drill’s length and diameter; precisely locate the cutting edge and calculate the web thickness.

The unit then sharpens the drill and applies the required split point form, in one seamless operation.

The XPS-16 will also hone carbide drill edges as part of the automatic process - extending tool life and maximising drill bit machining accuracy.

* CBN and diamond wheels - the machine is equipped with CBN and Diamond wheels that are designed to sharpen 2,000 to 4,000 drills.

Metal removal is set at a minimum to extend drill life.

However, this can be overridden by up to 0.50mm if necessary, to compensate for gouges or nicked drill edges.

The XPS-16 allows user-specific drill sharpening programs to be produced easily and stored for future use.

It also has Darex’s latest Grind Motion Control system, which detects excess material on the blunt drill bit.

The system enables the grinding feed rate to be adjusted automatically, to prevent abrasive ‘burning’ and to provide optimum sharpening performance.

* Low maintenance - the unit’s long-lasting super-abrasive plated grinding wheels and lifetime-lubricated seals ensure low maintenance and a long service life.

The sharpener also incorporates a vacuum filtration system to eliminate grit and airborne contaminants such as carbide dust.

In addition, its computerised controls are backed by advanced diagnostic software that will alert operators to potential problems during the sharpening cycle.

* About 1st Machine Tool Accessories - offering a comprehensive range of top quality products at competitive prices, 1st Machine Tool Accessories is a leading supplier of workholding and machining accessories including collets; chuck jaws; Kitagawa chucking, rotary tables and vices (vises); Leave fixturing and clamping products; Chick workholding equipment; Darex tool sharpeners; OK Vises; Brighetti reduction bushes; deburring and countersink tools; IEMCA barfeeders; 3Nine oil mist filtration; Cooljet high pressure coolant systems; machine mounts and Overbeck deburring twister lathes.

1st MTA’s extensive stock holding is backed by excellent warranty and service provided by a dedicated team of technical engineers; demonstrations of some products are available from external sales specialists.

http://www.manufacturingtalk.com/news/sts/sts110.html

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Discount on Darex XPS-16 CNC drill sharpener

cnc,cnc machines,cnc milling machines, cnc lathe,used cnc machines September 25th, 2008 by cnc machines cnc manufacturers Industries,cnc machine tools,cnc programming,cnc controller admin

1st Machine Tool Accessories has cut 20 per cent from the price of its Darex XPS-16 CNC drill sharpener for the rest of the year.

There will also be a 90 deg upgrade package worth GBP998.00 with every XPS-16 ordered Having the XPS-16 available in-house offers users a rapid payback Whether replacing tools or sending them out to be resharpened, the costs of purchasing, issuing payment and stocktaking are eliminated.

In many machine shops, it is the most experienced (and expensive) employees who are asked to resharpen ‘emergency’ drills by hand.

The unit will therefore pay for itself many times over in a short period of time.

Representing the ultimate in precision, simplicity and productivity, the XPS-16 offers sophisticated CNC four-axis sharpening of a wide range of twin-flute drill-point types - enabling it to quickly reproduce the complex, high quality profiles found on premium HSS, cobalt and carbide drills.

Its easy-to-learn touchscreen interface allows inexperienced users to produce perfectly resharpened drills in seconds.

To underline the system’s capabilities and ease of operation, 1st MTA will also arrange free demonstrations of the XPS-16 at customers’ premises on request.

Suitable for conical, four facet, split point and radius split-point bits with angles from 118-150 deg as standard, the XPS-16 will sharpen drills from 3-16mm diameter and 50-220mm long.

It has been designed specifically for heavy-duty use within busy machine shop environments and is capable of sharpening more than 400 drills a day.

This drill sharpener’s automatic cycle hones and deburrs the cutting edge of carbide drills in less than one minute, extending tool life and maximising drill-bit machining accuracy.

In operation, the XPS-16 allows up to 25 user-specific drill-point geometries to be easily programmed and stored for future use.

It also incorporates Darex’s latest Grind Motion Control system, which monitors the load on the grinding wheel and automatically adjusts feed and speed while keeping the drills cool.

Electroplated super-abrasive wheels are included - CBN for sharpening HSS drills and Diamond for carbide drills - to ensure a smooth finish.

Metal removal is set at a minimum to extend drill life; this can be overridden by up to 0.50mm if necessary to compensate for gouges or damaged edges.

Lifetime-lubricated seals ensure low maintenance and a long service life.

The vacuum filtration system eliminates grit and airborne contaminants such as carbide dust, keeping the machine clean while acting as a coolant.

In addition, advanced diagnostic software alerts operators to potential problems during the sharpening cycle.

http://www.manufacturingtalk.com/news/sts/sts116.html

Posted in CNC Drills | No Comments »

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