cnc gear hobbing machine...p/i : stmp 10-0000 dated 6th april, 2010 gho-200 cnc gear hobbing machine...

CNC GEAR HOBBING MACHINE

MODEL : GHO-200

2010. 4. 6

P/I : STMP 10-0000 dated 6th April, 2010

GHO-200 CNC GEAR HOBBING MACHINE

Page no. 2

Elaborated for :

Offer No. :

CNC GEAR HOBBING

MACHINE

MODEL : GHO-200



Page no. 3

List of Contents

1. APPLICATION ---------------------------------------------------------- 4

2. BASIC TECHNICAL APPLICATION --------------------------------------- 5

3. TECHNICAL DESCRIPTION OF MAJOR UNIT OF MACHINE TOOL ------ 6

3.1 HOB HEAD UNIT

3.2 TAIL STOCK UNIT

3.3 TABLE UNIT

3.4 BED UNIT

3.5 COLUMN UNIT

3.6 LUBRICATION SYSTEM

3.7 HYDRAULIC SYSTEM

3.8 HOBBING JIG

3.9 CENTERING UNIT

3.10 INTERACTIVE PROGRAMMING ENVIRONMENT

3.11 CNC CONTROL SYSTEM

4. MACHINE TOOL EXECUTION -------------------------------------------- 11

5. STANDARD EQUIPMENT ------------------------------------------------- 13

6. OPTIONAL EQUIPMENT -------------------------------------------------- 14

7. WARRANTY --------------------------------------------------------------- 17

8. TRAINING ----------------------------------------------------------------- 18

9. RELATED DOCUMENTATION TO PURCHASE ORDER -------------------- 18



Page no. 4

1. Application

The GHO-200 CNC Gear Hobbing

Machine is designed to perform

high speed, precision hobbing for

automotive gear parts.

The following operations according

to a technological program are

able to be done on the machine

tool :

- Spur gear

- Helical gear

- Small Cone gear

- Crown gear

- Sprocket

The machine tool is provided with the following CNC axes :

X-axis : column travel, Y-axis : Hob shift

Z-axis : hob head A-axis: Hob head swivel C-axis: Table rotation

The below figure presents the CNC axes and the directions of its motions.



Page no. 5

2. Basic Technical Specifications

GHO-200

2.1 TYPE - Ver. CNC GEAR HOBBING M/C

2.2 Max. work-piece diameter mm/kg Ø 200

2.3 Max. module - M4.5

2.4 Table diameter mm Ø 240

2.5 Z-axis travel(AXIAL) mm 350

2.6 X-axis travel(RADIAL) mm 200

2.7 Hob swivel angle deg MAX±45

2.8 Hob arbor taper - NT NO.40

2.9 Max. hob diameter/length mm Ø 180/190

2.10 HOB shift travel mm 170

2.11 Max. hob speed rpm 1500

2.12 Max. table speed rpm 230

2.13 TAIL STOCK stroke mm 380-780

2.14 Z-axis rapid feed rate m/min 12

2.15 X-axis rapid feed rate m/min 12

2.16 Y-axis rapid feed rate(hob shift) mm/sec 4.2

2.17 Travel distance from table surface to hob

center(Z-axis) mm 200-550

2.18 Travel distance from table center to hob

center(X-axis) mm 15-215

2.19 MOTOR

B-axis(Hob spindle) kW AC12/16

A-axis(hob head swivel) Nm 6/10:1

Z-axis Nm 27 /2:1

X-axis Nm 27

C-axis Nm 410

Y-axis(hob shift) Nm 6/10:1

Lubrication kW 0.2

Coolant kW 0.9

Hydraulic kW 3.7/2.2

2.20 Hob head fixation ton 7.6

2.21 Tail stock fixation ton 1.5

2.21 Work-piece fixation Ton 3.3ton(Ø 120 CYLINDER)

2.22 Number of Axes controlled by CNC - 5(X, Y, Z, A, C)

2.23 CNC CONTROL SYSTEM - SIEMENS 840D/FANUC 18iMB

2.24 Floor space(L×W×H) mm 2702×3360×2810

2.25 Machine weight kg 9,000



Page no. 6

3. Technical Description of Major Unit of Machine Tool

3.1 Hob head

Material : Cast iron & Steel

Hob spindle motor :

1PH7133-2ND03-0BC2(SIEMENS) 12/16kW

Hob spindle bearing : B7017E. TPA. P4. UL

Hob spindle gear ratio : 3:1

Hob shift clamp : Disc spring(4 position), Clamping power 7.6ton

Hob swivel clamp : Disc spring(6 position), Clamping power 7.3ton

3.2 Tail stock


Tail stock up/down cylinder : 35H-31FB63B400

(Clamp power at 30 bar : 840kgf)

Tail stock spindle bearing : B7010E.TPA.P4.UL

Tail stock clamp : Disc spring, Clamping power 1.5ton



Page no. 7

3.3 Table(C-axis)


Table(C-axis)Motor type :

Built-in torque motor(Direct-Drive motor)

Table spindle bearing : NNU4938K P4

Table resolution : 0.001°

3.4 Bed

Material : Cast iron

Weight : 3,040kg

X-axis Ball screw : Ø50 x 907mm(Maker: CBC)

X-axis Ball screw bearing : 40TAC 90B DFD C10PN7A(Maker: NSK)

3.5 Column

Material : Cast iron

Weight : 1,850kg

Z-axis Ball screw : Ø50 x 850mm(Maker: CBC)

Z-axis Ball screw bearing : 40TAC 90B DFD C10PN7A(Maker: NSK)



Page no. 8

3.6 Lubrication System

Lubrication tank for slideway

- Maker : Hansung

- Spec : HMGP303S-01-T12-F/P-F220

Lubrication tank for spindle gear box

- Maker : Hansung

- Spec : HMTP-3M-200-13MAVB(400x500x250)

3.7 Hydraulic System

Main Pump

- Maker : NACHI

- Spec : PVS-1B-22NS

Sub Pump

- Maker : SHIMADZU

- Spec : YP10-2.5A2H2 -R

Sol V/V

- Maker : NACHI

- Spec : SS-G01-C5-R-C1-31(1EA), SS-G01-C6-R-C1-31(2EA), SS-G01-A3X-C1(4EA)

Hyd. Actuator

- Hob head unclamp, Hob swivel unclamp, Hob arbor unclamp, Hob arbor support

Clamp/Unclamp, Tailstock Unclamp, Tailstock up/down, Work Clamp/Unclamp



Page no. 9

3.8 Hobbing jig

Maker : S&T

Type : Collet, Face drive, Manual,

Work arbor

and Special type

3.9 Hob centering unit

Maker : S&T

3.10 Interactive Programming Environments

- Additional programming is not necessary. And gear processing is easy with just

the input of specifications of hob cutter, workpiece, and cutting condition

절삭조건 데이터(2)

입력 항목 단위

mm

mm

mm/rev

mm/rev

mm/rev

mm

1회전한후 후퇴

※ UP_SOLID : 0(사용안함), 1(사용함)

DOWN_SOLID : 0(사용안함), 1(사용함)

변 수 설 명

1ST_RPM

2ND_RPM

X_FEED

Z_1ST_FEED

Z_2ND_FEED

FIN_CUT 2 CUT시 정삭 여유량

UP_SOLID

DOWN_SOLID

X축방향 절삭 이송 속도

1 CUT시 호브 회전수

2 CUT시 호브 회전수

1 CUT시 Z축 이송속도

2 CUT시 Z축 이송속도

가공상단점 위치에서 테이블

1회전한후 후퇴

가공하단점 위치에서 테이블

절삭조건 데이터(1)


mm

mm

mm

mm

mm

가공방법

오버런량

X축 가공시작,종료점

Z축 가공시작,종료점

※ 가공방법 : 1(UP CUTTING), 2(DOWN CUTTING), 3(UP-DOWN 2 CUTTING)

3(DOWN-UP 2 CUTTING), 4(UP-UP 2 CUTTING)

W_LOW_POS

OVER RUN

APPROACH 어프로치량

기계원점에서 공작물 밑면

까지의 거리

VARI

RTP_X

RTP_Z

변 수 설 명

호브 데이터


mm

mm

deg

mm

EA

mm

mm끝부까지 길이

※ 호브 줄수,리드각 : - (LH HOB), +(RH HOB)

호브 시프트 유형 : 1: (+)방향, 2: (-)방향, 3: (+)(-)왕복

아버게이지라인에서 유효호브날

시작부까지 길이

아버게이지라인에서 유효호브날

호브 줄수

호브 리드각

호브 외경

호브 마모량

SHIFT_TYPE 호브 시프트 유형

START_POS

END_POS

CUT_NO_SH

호브 시프트량

1회 시프트당 가공횟수

SHIFT_VOL

NO_THREAD

LEAD_ANGLE

HOB_DIA

HOB_WEAR

변 수 설 명

공작물 데이터


deg

deg

mm

mm

mm

mm

mm

mm

※ 모듈 : +(Metric), - (Diameterical Pitch)

비틀림각 : - (LH GEAR), +(RH GEAR)

변 수 설 명

NO_TEETH

MODULE

H_ANGEL

P_ANGLE

치저경ROOT_DIA

WORK_DIA 공작물 외경

잇수

모듈

비틀림각

압력각

크라운 중심점 높이

테이퍼량TAPER

CROWN_H

크라운량

WORK_WIDTH 공작물 절삭폭

CROWN



Page no. 10

3.11 CNC Control System

Controller : FANUC 18iM-B or SIEMENS 840D

Controlled axis : 6-axis

Simultaneous controlled axis : 4-axis

Display unit : 8.4” Color LCD



Page no. 11

4. Machine Tool Execution

4.1 Electrical equipment is adapted to the following parameters

- Working voltage 3 x 220V

- Frequency 60Hz

- Control voltage AC 110V

- Climate conditions +10 ~ +35℃

NOTE:

The other parameters to be agreed. The working voltage and the frequency have to

be finally specified in the Purchase Order. The adaption of the machine tool to the

other voltage and/or frequency requires considerable modifications and results in

higher costs.

4.2 Standard paint of the machine tools is as follows:

- Fixed elements Dark Gray (8.3B 4.5/0.9)

- Movable elements Bright Gray (2.2B 7.1/0.7)

- Platform, ladders White(2.2B 8.8/0.6)

4.3 Technical acceptance of the machine tools at Manufacturer’s site will be carried

out by S&T Dynamics Quality Control Department.

4.4 The geometrical accuracies of the machine tools will be checked according to KS

standard defining the testing conditions of machine tools under no load or during

finish machining conditions.

The geometrical accuracies of machine tools will be checked in ambient

temperature of 20℃±1℃. Temperature fluctuation before 12 hours and during

entire course of tests will not exceed 1℃. All thermal influences on tested machine

tools from one side or draughts will be eliminated. Maximum gradient of changes

in air temperature is 1℃ at change in attitude by 5m. The machine tool will be

installed on foundation separated from thermal influences, vibrations or shocks



Page no. 12

from external sources.

4.5 Positioning accuracies of assembly units of the machine tools will be tested in

identical environmental conditions as those of the geometrical accuracies.

4.6 Preliminary acceptance of machine tools at Manufacturer’s will be carried out

using both work piece and tools under the conditions complying with KS standard.

4.7 Final acceptance of the machine tool will be carried out at Purchaser and will

include the following:

- The geometry check of machine tools

- Test of machining accuracies using test work piece.

Optionally, the acceptance tests may include machining of a Purchaser ’s regular

work piece. Purchaser is to supply work piece, tools and fixtures and machining

software.

Optionally, the machining software can be elaborated during at site training as a

result of co-operation between the Purchaser’s and Contractor’s programming

engineers.

4.8 Machine tools will be executed according to the Korean standards of industrial

safety regulations and a CE declaration will be provided.

4.9 S&T Dynamics has been awarded with the following certificates:

- Quality System Certificate issued by Korean Foundation for Quality conforming

accordance with KSA 9001:2001 ISO 9001:2000 standard.

- Environmental Management System certificate issued by Korean Foundation for

Quality conforming according with KS A ISO 14001:2004 ISO 14001:2004 standard.

4.10 The Manufacturer reserves a right to introduce any of changes in the design of

machine tools and the offer conditions resulted from the Purchaser’s additional

requirements.



Page no. 13

5. Standard Equipment

No. Description of Equipment Price in USD

5.1 Main body

5.2 Full splash guard

5.3 Hob arbor set(Ø25.4)

5.4 Leveling bolt & Base plate

5.5 Standard tool kit

5.6 Work light

5.7 Oil cooler

5.8 Hob centering unit

5.9 M.Q,.L unit

5.10 Base jig(Collet type)

5.13 SIEMENS 840D

5.14 Operation and Maintenance Manual

5.15 CNC system operating and programming documentation

Total

Assembly, Installation, Commissioning, Training, Tests and Acceptance at

Purchaser’s site

Note : costs of accommodation and travels of Manufacturer ’s Installation Team is not included



Page no. 14

6. Optional Equipment

CODE NAME Price in USD

Magnetic separator

Maker : CHANGYONG

Type : Block magnet type

Oil mist collector

Maker : YHB

Model : YOC-350

Hob arbor set

*. Maker : S&T

*. Model : Ø22, 22.225, 27, 31.75, 32, 38.1, 40

SPECIAL - Ø12.7, 13, 16, 19.05

Hobbing jig

*. Maker : S&T

*. Model : User specification



Page no. 15

Hob cutter

*. Maker : DTR


Auto door

*. Maker : SMC, TPC

Transformer

*. Maker : SUNJIN TRANS

*. Model : 60kVA

Deburring unit

*. Maker : S&T

Skiving sensing unit

*. Maker : S&T



Page no. 16

Auto loading system

*. Maker : S&T


Coolant oil cooler

*. Maker : MASTERTEC

*. Model : MSCC-3000F



Page no. 17

7. Warranty

7.1 The product liability for the supplied machine tool expires after 12months from a date of

positive acceptance at Purchaser ’s site, but not later than 18months from a date of delivery.

Extension of the warranty period by each next 12 months results in price increase by 5% of a

subject of delivery.

7.2 Contractor guarantees free-of-charge after sales servicing of the machine tool during

warranty period and commercial services after the warranty expires.

Response time of after sales service

- 24 hours – in Korea

- 72 hours – outside Korea,



Page no. 18

8. Training

8.1 Training by Machine Tools Manufacturer

The Manufacturer will submit the training program for the Purchaser’s personnel

carried out by the Manufacturer. The training amounting received by the operators and

maintenance staffs of the Purchaser.

– during the machine tool commissioning at the Purchaser’s site

9. Related Documentation to Purchase Order

9.1 The scope of delivery according to items 5.14 and 5.15 of the Standard Equipment

covers the following:

- Operation and Maintenance Manual related to machine tools including the mechanical,

hydraulic and electrical parts

- CNC system operating and programming documentation

- Remaining documents related to the Purchase Order, e.g. packing list, shipping

documents, etc.

cnc gear hobbing machine...p/i : stmp 10-0000 dated 6th april, 2010 gho-200 cnc gear hobbing machine...

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