tongil ballscrew catalog (english)
Post on 17-Mar-2016
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Our company was the first Korean company to successfully establish a technical partnership with a leading Japanese ball screw manufacturer. We did this with KOYO Machinery and we have been producing components and ball screws to Koyo’s exacting standards since 2008. Today, TIC is the leading manufacturer of ball screws in Korea with over 60% market share in high precision ball screws among domestic manufacturers. TIC is also the leading player in the market for Universal Cylindrical Grinding Machines in particular, both manual and NC type, with each holding 60% of domestic market share from the early 2000’s. Our machines are well recognized for excellent quality which our customers and users attribute to our expertise in assembly skills and use of high quality ballscrew components. Please let us know what way we could be of service to your company in providing quality ball screws.TRANSCRIPT
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High-tech equipment system of TIC produces the best ball screw with high technical skills
In order to keep the whole temperature and humidityconstantly in the main production line, 4 thermo-hygrostats are automatically operated, therefore the production of the goods with high precision is available minimizing the error due to difference of temperature and humidity such as bending under the process, change of length, etc..
NUT Form Measuring Instrument
Shaft Laser Measuring Instrument
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Equipment System
Shaft proportional Measuring instrument
Torque Measuring instrument
NUT Thread Internal Grinding Machine (Matrix)
Shaft Cylindrical Grinding Machine (Kondo)
Shaft Thread External Grinding Machine (Mitsuisiki)
Quality System
MainProduction Equipment
This tester helps to solve the precision and noise problems which happen to ball screws and analyze the problems through computers to find out the causes of defects. It is an important piece of testing equipment which TIC has developed on its own.
This is a device to secure customers reliability by improving feeding accuracy of NC machine tools measuring the rigidity of ball screws in axial direction and conducting optimum design to minimize displacement by cutting forces.
rigidity tester
Ball screw total tester
displacement sensor
10 11
Introducing new Ball Screw
Quality Assurance Facilities
Equipment System
How to read the measured data
Average-Range
Upper limit
Actual value
Lower limit
Base line
Rigidity
- Low noise and good sound quality achieved improved ball circulation structure (Structure to reduce ball impulsive sound)- Noise reduction achieved by change of material (Adoption of material with low impulsive sound)- Higher precision of ball track shape (Improvement in track shape and surface roughress)
- Written in Page 113 -
Noise comparison between conventional and new products
Circulation in tangential directions
Circulation in lead angle directions
Contribution to comfortable environmentFirst step toward production of low-noise machines and equipment
Features
Construction Performance
10 11
Introducing new Ball Screw
High-speed Low-Noise Ball Screws (YEF Type)
Shaft diameter
Lead
Steel diameter
Lubricants
No. of winding
Noise Assessment distance between microphone and ball screwNoise reduction effectiveness increases as the speed increases
New ProductsComparison Products
Rotation speed of shaft
- Low noise and anacceptable running sound- The use of ball cage reducing the fluctuation in dyramic torque, thus to achieve smooth motion- Grease pockets to be achieving long-term mainte nance-free operation
High speed ball screw with caged
Low noise, Low torque frictionLong-term, maintenace free operation
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Introducing new Ball Screw
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Introducing new Ball Screw
Features
Construction
Performance
Preload torquePreload torque
Preload torque
Standard products
Retainer applied products
Conventional products
New products
Features 1. Noise reduction effectiveness increases as the speed increases. 2. About 6 dB less than the conventional tube. (3,500 RPM)
Circulation in tangential directions
comparative circulation of friction torque noise test data
Circulation in tangential directions
Circulation in lead angle directions
Circulation in lead angle directions
High-speed Precision Ball with Air Cooling sustem
Actions against thermal displacement by friction
Low friction/low heat dissipation structure
- Built-in shaft/unit air cooling mechanis mand high-precision feed with minimal environmental impact- Low noise and good sound quality achieved improved ball circulation structure (Structure to reduce ball impulsive sound)- Higher precision of ball track shape (Improvement in track shape and surface roughness)- Maximum feed speed : 60mm/min
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Introducing new Ball Screw
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Introducing new Ball Screw
Features
Construction
Cooling data
T.P. Model no.
Shaft diameter
Lead
Number of coils
Max-speed
Max-acceleration
Weight of moving part
windings
General products
Air cooling products
Coil and air filled products
Time
Test Conditions
T.P. Model no.
Shaft diameter
Lead
Number of coils
Max-speed
Max-acceleration
Weight of moving part
windings
General products
Air cooling products
Coil and air filled products
Time
Temperature increase data (Measuring position : nut)
Air cooling structure
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TIC Precision Ball Screws :Types, Series, and Construction
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TIC Precision Ball Screws :Types, Series, and Construction
Table 1.1 TIC Precision Ball Sc rews : Types, Series, and Construction
Series
1. T Series(Tube type : externalball circulation)
A tube is provided in the nut. Steel balls, rolling in the grooves between the shaft and nut, enter the tube and roll down. They then return to the groove between the shaft and nut. This series fits the widest variety of applications among the series, and is suitable for standard manufacture.The nut outer diameter is determined such that the components through which balls circulate (tube and holder) cannot move beyond the nut circumference.The nut outer diameter which is smaller then tube and holder position is also available on request. Deflectors are provided inside the nut. Steel balls, rolling
Deflectors are provided inside the nut. Steel balls, rolling in the grooves between the shaft and nut, move along the grooves of deflector. They then return to the groove between the shaft and nut, passing through the shaft groove rand. Since steel balls circulate inside the nut, the nut outer diametercan be small. The deflectors are placed at equally spaced on the nut outsidesurface, so the nut can retain good balance.
The L series is characterized by a large lead. Precise nut positioning is possible at high speed. They can be classified into the tube type and end cap type, according to the steel ball circulation system.
It is characterized by high speeds and clean and clear sounds through smooth rotation by making the rotation direction of the steel ball consistent with the lead angle. It is also possible to make the same rigidity of products with the internal circulation type and compact structure, which is 30% more compact than conventional products.
R series represent form rolling ball screw and the type use a tube type.Tube inserting method can be divided into 4 kinds including a dumping type where insert completely into nut outer diameter and a projecting type where project to outside
2. D Series(Deflector type : internalball circulation)
3. L Series(Tube type)
4. E Series(Endcap type)
5. R Series(Rolling Ball Screw)
Construction
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TIC Precision Ball Screws :Types, Series, and Construction
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TIC Precision Ball Screws :Types, Series, and Construction
TFN Type(Flange, Double-nut)TSF Type(No preload, Flange, Single-nut)TFP Type(Preload, Flange, Single-nut)TFF Type(Flange-to-flange, Double-nut)TNN Type(No flange, Double-nut)TSN Type(No preload, Single-nut)TPN Type(Preload, Single-nut)YTF Type(Preloaded with Oversize Balls)
DFN Type(Flange, Double-nut)DSF Type(No preload, Flange, Single-nut)DFP Type(Preload, Flange, Single-nut)DFF Type(Flange-to-flange, Double-nut)DNN Type(No flange, Double-nut)DSN Type(No preload, Single-nut)DPN Type(Preload, Single-nut)YDF Type(Preloaded with oversize balls)
LTF Type(Tube type, No preload, Flange)LTP Type(Tube type, Preload, Flange)
TBSF Type(Tube Built-in Flange Nut)TNSF Type(Outer Diameter Small Flange Nut)TMS Type(Triangle Screw Type Nut)TRS Type(Square Shape Nut)
YEF Type(Preloaded with Oversize Balls)H-ESH Type(No preload)
Type Page
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TIC Precision Ball Screw Features
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TIC Precision Ball Screw Specifications
High transfer efficency.
Ball screws, unlike slide screws, produce extremelylow friction. They achieve high transfer efficiency,while maintaining running torque at one-third that ofslide screws. Great thrust load can be obtained atsmall torque.
Figs. 2.1 and 2.2 show ball screw transfer efficiency.Ball screws convert rotary motion into linear motionin normal use, but can also be used to convertlinear motion into rotary motion(reverse action).
Fine travel capabilities.
The rolling contract of ball screws contributesextremely low starting friction. They do not produceany stick slip, to which slide screws are liable.Ball screws can be controlled precisely is a finetravel.
High rigidity with preload.
High rigidity can be achieved by using a preloadwith two nuts, or by using a preload with oversizeballs in single nut, which eliminates axial clearance.
Long service life.
Steel balls roll on heat-treated or hardened groovesis extremely low, and high precision can bemaintained over a long period of time.Service life can be estimated by calculation.
Easy maintenance.
Unlike slide screws, ball screws do not requirefrequent lubrication. Under normal operatingconditions, they operate satisfactorily with anoccasional supply of grease or lubrication oil.
High reliability T