Focusing on precision CNC lathe
Engaging in machine automation
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 2006, 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:
3) Processing accuracy: Follow the drawing from customer
4) work tool & fixture collet
CNC lathe the first process--- products fixture method and process proposal | |||||
Machining process 1> head, OD, step(rough turning); 2> head, OD, step fine turning; 3> grooving for step; 4> ID rough turning; 5> ID fine turning;
| |||||
process | tools | Process speed(r/min) | Traverse (mm/r) | Cycle time(S) | |
head, OD, step (rough turning) |  | S1100 | F0.1 | ≈40s | 0.7s |
head, OD, step fine turning |  | S1300 | F0.08 | ≈36.5s | 0.7s |
grooving for step | | S1000 | F0.04 | ≈8s | 0.7s |
ID rough turning | | S1200 | F0.1 | ≈13s | 0.7s |
ID fine turning |
| S1400 | F0.08 | ≈12.5s | 0.7s |
Total machining time ≈118s | |||||
Feeding materials+air blowing ≈10s | |||||
Total time ≈166s | |||||
CNC lathe the second process--- products fixture method and process proposal | |||||
1> head, OD(rough turning); 2> head, OD fine turning; 3> ID rough turning; 4> ID fine turning;
| |||||
process | tools | Process speed(r/min) | Traverse (mm/r) | Cycle time(S) | |
head, OD(rough turning) | | S1100 | F0.1 | ≈10s | 0.7s |
head, OD fine turning | | S1400 | F0.08 | ≈9s | 0.7s |
ID rough turning | | S1200 | F0.1 | ≈3.5s | 0.7s |
ID fine turning | | S1400 | F0.08 | ≈4.5s | 0.7s |
Total machining time ≈32s | |||||
Feeding materials+air blowing ≈10s | |||||
Total time ≈42s | |||||
The above cycle time is based on the logic, the actual machining time can add/cut 10% as the reference, if the machining need 5 cutters, propose to use 8 station turret.
5) Proposal solution：
Precise linear guide-way CNC lathe with 45ºslant bed : S36 with gantry loader in tray
6) CNC lathe sketch:
1> Precise linear guide-way CNC lathe with 45ºslant bed and T-slot blade row : S36( the logo will be printed to be S36)
2> auto loader feeding system
2. Parameters, configuration and price:
1) parameters:
Main parameters | UNIT | S36 | |
Capability | Max. swing diameter | mm | 350 |
Max. turning length | mm | 330 | |
Max. bar through-hole | mm | 26（35/39） | |
Axis Stroke | X-axis travel | mm | 420 |
Z-axis travel | mm | 330 | |
Rapid Traverse | X/Z-axis | m/min | 20 |
Spindle | Spindle nose size | N/A | A2-5 |
Spindle servo motor power | kW | 5.5/7.5 | |
Spindle speed range | rpm | 0～5000 | |
Work piece clamping method | N/A | homemade collet | |
No. of tools | Number of tools | PCS | 5 |
Toolholder | Toolholder type | N/A | T-slot blade row |
OPT | T-slot blade row+spindle head | ||
OPT | T-slot blade row+63 turret | ||
OPT | T-slot blade row+63turret+spindle head | ||
Toolholder center height in radial | mm | 62 | |
Tool size | mm | 20*20 | |
Boring rod diameter | mm | 25 | |
Accuracy | X\Z axis repeating postioning accuracy | mm | 0.002 |
Others | Cooling motor capacity | L | 120 |
hydraulic box capacity | L | 60 | |
Required electric power | kVA | 12 | |
Height from floor to spindle center | mm | ≈1070 | |
Overall size(L*W*H) | mm | 1850*1750*1750 | |
Net weight | kg | ≈2400 | |
2) Configuration and price
NO. | ITEM | COMPONENT BRAND & SPEC. | ORIGINAL COUNTERY | QTY. | |||
1 | Operation system | SYNTEC | JAPAN | 1 | |||
2 | Servo motor/drive | YASKAWA | JAPAN | 2 | |||
3 | Spindle motor | SFC/CTB | JAPAN | 1 | |||
4 | Ball screw & linear guide-way | PMI | 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 | JIAJIAN | 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 | Tool-holder type | T-slot blade row | BY GONGTIE | 1 | |||
13 | Bar feeder | UT565(￠5-￠65) | TAIWAN | 1 | |||
OPT | CHUCK | TAIWAN | 1 | ||||
OPT | CHIPS CLEANER | CHINA | 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. 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 condition: EX works
7. Total price:
Precise linear guide-way CNC lathe with 45ºslant bed and T-slot blade row: S36 + auto loader feeding system in tray + chuck 6”
Price： 188000RMB /SET
SEA PACKAGING: 5000RMB
OPTIONAL: CHIPS CLEANER: 10000RMB, HOIST: 35000RMB, CE certificate: 20000RMB
8> Period of validity: ONE month
9> Price base: EXWORKS
10> Payment term: 30% pre-pay, 70% before delivery
11> Price with the good packaging.
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