Technique solution
Customer: ********
Supplier: Ningbo Gongtie Smart Technology Co., LTD.
Data No.: *********
Company Presentation:
Ningbo GongTie Precision Machinery Co.,LTD is a national high-tech enterprise, which integrates precise CNC lathes and industrial robots as a whole, specializes in precise CNC lathes, automatic integral-single CNC lathes, automatic production line. Bases on medium-small precise CNC lathes, sets up the machine automation as enterprise’ strategical core, targets to satisfy the market and the customer as the technique innovation’s motivation, scientifically and reasonably combines the precise CNC lathes with the machine unmanned together, sustainably improves the machine’s stability and practicability, becomes the domestic leading professional manufacturer and service supplier for precise CNC lathes and machines’ automation.
Established in 2008, with more than 100 employees, already got various of invention patents. GongTie is able to offer a complete engineering package from concept , design to manufacturing.
The company’s diversity machine series is widely used in automotive parts, valve, bearing, electric application , instrument, sanitary and more other industries, can realize various processing technology like drilling, turning, milling, boring, tapping, grooving and so on. We have set up sales office at several place and perfect sales representative network. And we completely follow the ISO9000:2000 quality management system and security management system on the development and manufacturing, to guarantee the quality and safety during the customer’s application. In addition, we have built up a perfect after-sales service system, can in-time make feasible reaction for the customer’s any inquiries or problems。
The CNC machine from GongTie has below advantages:
-- broaden application range
-- high precise, reliable features, fine finish and stable processing.
-- save labor costs
-- competitive price with high quality assurance
The company mission:
l Continuous innovation
l Quality priority
l Customer focused
l Solution driven
With our accurate, reliable products and perfect service system, we have won the trust of many users, and gradually built up a good brand impression in the CNC lathes automation industry.
SOLUTION :
1. Products processing solution
1) customer: ******
2) product:
Processing accuracy: Follow the drawing from customer
3) Work tool & fixture: precise spring collet chuck
5) The technique remarks:
5.1> the program will set up the tools life-time management (customer pre-set up the q’ty of the machining products, when reach it, automatically warning, for reducing the products scraps and the tools damage.)
5.2> Installing the additional air-blowing advice on the collet to make sure no chips on the surface of the fixture.
5.3> Installing the additional air-blowing advice on the tool holders.
6) GONGTIE company will do the best to provide the technique guidance for CNC lathes and related suggestion of the products processing technology.
7) Processing flow proposal:
the first CNC lathe process--- cycle time and process proposal(example of type 40) 1> flat head,OD(rough turning); 2> flat head, OD(fine turning); 3> OD threading, 4>Ø4 end face drilling hole; 5>Ø5 fine turning for ID, then chamfer angle; 6>Ø3 side face drilling hole with live tool; 7>Ø2.4 side face drilling hole with live tool;8> parts cutting | ||||||||||||||
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process | tools | Process speed(r/min) | Traverse (mm/r) | Cycle time(S) | ||||||||||
flat head, OD(rough turning) |
| S2000 | F0.14 | ≈19.5s | 0.7 | |||||||||
flat head, OD(fine turning) |
| S2400 | F0.1 | ≈16s | 0.7 | |||||||||
OD threading | S1500 | 7.5S | 1.5 | |||||||||||
Ø4 end face drilling hole |
| S1500 | F0.07 | 23s | 0.7 | |||||||||
Ø5 fine turning for ID, then chamfer angle |
| S1700 | F0.08 | 6s | 0.7 | |||||||||
Ø3 side face drilling hole |
| S1700 | F60 | 4s | 1 | |||||||||
Ø2.4 side face drilling hole |
| S1700 | F60 | 4s | 1 | |||||||||
Parts cutting |
| S1400 | F0.04 | 7.5 | 0.7 | |||||||||
Processing time | ≈100 | |||||||||||||
Auto loading/unloading + air blowing | ≈4.5 | |||||||||||||
total | ≈105 | |||||||||||||
the second CNC lathe process--- cycle time and process proposal l(example of H=40): 1>flat head, chamfer angle;2> end face chamfer angle, ID turning; 4> ID fine reaming | ||||||||||||||
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process | tools | Process speed (r/min) | Traverse (mm/r) | Cycle time(S) | ||||||||||
Flat head, chamfer angle |
| S2200 | F0.11 | ≈5 | 0.7 | |||||||||
end face chamfer angle, ID turning |
| S1800 | F0.08 | ≈12 | 0.7 | |||||||||
ID fine reaming |
| S700 | F0.15 | ≈23.5 | 0.7 | |||||||||
Processing time | ≈45.50 | |||||||||||||
Auto loading | ≈11 | |||||||||||||
total | ≈57 |
8) Proposal equipment:
v The first process: Precise linear guide-way CNC lathe with inclined bed S36 + bar feeder
v The second process: Precise linear guide-way CNC lathe with flat bed Q7 + gantry loader in tray
CNC lathe sketch:
8.1> Precise linear guide-way CNC lathe with inclined bed S36
bar feeder
Live tool
Remarks: propose the first process to take S36 with turret, cut the chips with additional air blowing way to change the chips unloading trail.
8.2> Precise linear guide-way CNC lathe with flat bed Q7 + gantry loader in tray
2. Parameters, configuration and price:
1) parameters:
Main parameters | UNIT | S36 | Q7 | |
Capability | Max. swing diameter | mm | 460/120 | 400/98 |
Max. turning length | mm | 325/270 | 300 | |
Max. bar through-hole | mm | 25(35) | 26(35) | |
Axis Stroke | X-axis travel | mm | 420 | 320 |
Z-axis travel | mm | 345 | 315 | |
Rapid Traverse | X/Z-axis | m/min | 20 | 20 |
Spindle | Spindle nose size | N/A | A2-5 | A2-5 |
Spindle hole through diameter | mm | 48 | 48 | |
Spindle servo motor power | kW | (asynchronous ) 5.5/7.5 | (asynchronous ) 3.7/5.5 | |
Spindle speed range | rpm | 0~5000 | 0~5000 | |
Work piece clamping method | N/A | homemade collet | homemade collet | |
Toolholder | Number of tools | PCS | 5 | 5 |
Toolholder type | N/A | T-slot blade row | Dovetail row of knives | |
OPT | T-slot blade row+live tool | T-slot blade row+live tool | ||
OPT | T-slot blade row+63 turret | |||
OPT | T-slot blade row+63turret+live tool | |||
Toolholder center height in radial | mm | 62 | 50 | |
Tool size | mm | 20*20 | 16*16 | |
Boring rod diameter | mm | 25 | 25 | |
Accuracy | X\Z axis repeating postioning accuracy | mm | 0.002 | 0.002 |
Others | Cooling motor capacity | L | 120 | 120 |
hydraulic box capacity | L | 60 | 60 | |
Required electric power | kVA | 12 | 8 | |
Height from floor to spindle center | mm | ≈1070 | ≈1070 | |
Overall size(L*W*H) | mm | 1850*1750*1750 | 1650*1300*1650 | |
Net weight | kg | ≈2400 | ≈1700 |
2) Configuration and price
NO. | ITEM | COMPONENT BRAND & SPEC. | ORIGINAL COUNTRY | QTY. | ||||
1 | Operation system | SYNTEC | TAIWAN | 1 | ||||
2 | Servo motor/drive | YASKAWA | JAPAN | 2 | ||||
3 | Spindle motor | CTB/SFC | CHINA | 1 | ||||
4 | Ball screw & linear guide-way | PMI/HIWIN | TAIWAN | 2,4 | ||||
5 | Spindle bearings | NTN P4 | JAPAN | 5 | ||||
6 | Spindle structure | Independent spindle with front three bearings and two after | BY GONGTIE | 1 | ||||
7 | Ball screw supporting method | Double supporting with pre-stretching structure | BY GONGTIE | 1 | ||||
8 | Hollow hydraulic rotary cylinder | 646/536 | TAIWAN COMPONENTS | 1 | ||||
9 | Hydraulic system | HUIZONG | TAIWAN COMPONENTS | 1 | ||||
10 | Electric cabinet with heat exchanger | NO. 5 | TAIWAN COMPONENTS | 1 | ||||
11 | Low voltage component | SCHNEIDER | FRENCH | 1 | ||||
12 | Hollow hydraulic chuck | 6” | TAIWAN(KOREA) | 1 | ||||
13 | Tool-holder type | T-slot blade row | BY GONGTIE | 1 | ||||
14 | Chips cleaner | INTERNAL(RIGHT SIDE) | CHINA | 1 | ||||
15 | Bar feeder | PG326(¢3¢26) | TAIWAN | 1 | ||||
Auto-loading/unloading system | ||||||||
No. | Kit | Brand&original country | QTY. | |||||
1 | Beam kit | GONGTIE | 1 set | |||||
2 | Beam linear guide-way | Taiwan PMI | 1set | |||||
3 | Parallel hand | JAPAN SMC | 1set | |||||
4 | Rotary cylinder | JAPAN SMC | 1set | |||||
5 | Air cylinder | JAPAN SMC | 1set | |||||
6 | Sensor/Magnetic switch | JAPAN SMC | 1set | |||||
7 | Gear wheel/rack(slant gear) | Taiwan | 1set | |||||
8 | Work-stocker system(in tray/pallet) | CHINA | 1set | |||||
9 | Loading/unloading device(mechanical claws) | GONGTIE | 1set | |||||
electrical system for gantry loader | ||||||||
1 | Servo motor | Inovance-china | 1set | |||||
2 | Servo system | Inovance-china ( bus type CNC system ) | 1set | |||||
3 | Controller system | Inovance-china | 1set | |||||
4 | Gear Reducer | Taiwan | 1set | |||||
5 | interface | Inovance-china | 1set |
3. After-sales service
1) after finishing the machine, CUSTOMER party does the QC and try-run on site before the delivery.
2) In maintenance guarantee period (one year), we offer free maintenance components, and provide free technique help by phone, if the damage is not caused by human and beyond the period, we offer relevant services with paid components.
4. Attachments
Attached items | QTY |
Working instruction | 1 SET |
Machine guarantee card | 1 SET |
Electrics instruction | 1 SET |
Machine inspection report | 1 SET |
CNC system instruction | 1 SET |
Basic tools | 1 SET |
5. Lead time: 65 working days after signing contract
6. Delivery term: EXWORKS
7. Payment term: 30% prepay after signing contract, 70% after customer checking and before delivery.
8. Period of validity: 30days
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