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74系列机床

74系列机床采用立柱布局工作台拖板移动形式。磨头垂直进给、工作台拖板纵向移动和工作台旋转运动均为滑动导轨结构机械传动,磨头垂直升降由滚珠丝杠交流电机驱动并有机动进给和零位停止装置,磨头功率大生产效率高。

本系列机床过用于工具、汽车、拖拉机、轴承等行业成批大量生产加工大型锯片、轴承套、活塞环等环形工件。 

Series 74 machines in structure, the vertical column are the mainstay for the mevemont of the table and the saddle, vertical feed machanism of the head, lengthwise of table’s saddle and rotation of table are sliding guideways and driven through mechanism, vertical head up-Down driven through ball screw by A.C. motor, it the able to auto-feel and Zero-stop; with powerful and a high productivity.

These machines are suitable for machining large saw dishes, bearing sleeve, piston rings in the industries of automobiles, tractors, bearings and tools, for production in big lots.

主要技术规格

MAIN TECHNICAL SPECIFICATIONS

M7450

M7463

M7480

M74180

1.工作台直径

Diameter of Table (mm)

Φ500

Φ630

Φ800

Φ1800

2.最大磨削尺寸(直径×高)

Max. Grnding (D×H, mm)

Φ500×250

Φ630×250

Φ800×350

Φ1800×400

3.工作台最大回转直径

Max, Swivel of Table (mm)

Φ680

Φ900

Φ1900

4.主轴中心至工作台中心距离(最大/最小)

From Spindle. Centre to Table (Max/Min mm)

640/240

725/245

1250/430

5.新砂轮端面至工作台面最大距离

From Wheel Top to Table Top (mm)

250

350

410

6.工作台转数(转/分)

Rotations of Table (r.p.m)

122238

102028

51015

7.工作台拖板移动速度(毫米/分)

Speed of Saddle (mm/min)

2000

3000

2600

8.磨头快速升降速度(毫米/分)

Rapid up-Down of Head (mm/min)

190

200

152

9.磨头垂直移动距离

Vertical Travel of Head (mm)

320

450

510

10.磨头机动进给速度(无级毫米/分)

Auto-Feed of Head (stepless, mm/min)

0.1-1.2

0.08-1.2

0.04-0.58

11.磨头转数(转/秒)

Rotations of Head (r.p.m)

1450

960

600

12.磨头电机功率/总功率

Head Motor/ Machine Totol Power (kW)

17/21

30/37

75/80

13.砂轮尺寸(外径×高×内径)

Wheel Dimensions (OD×H×ID,mm)

Φ350×125×Φ280

Φ500×150×Φ300

Φ1000×200×Φ440

14.机床外表尺寸(长×宽×高)

Overall Dimensions (L×W×H,mm)

2370×1380×2165

2460×1240×2472

4530×2120×3516

15.机床净重/毛重

Net Weight/ Gross Weight (KG)

4500/5500

8000/9000

26000/28000

16.工件表面对基面平面度

Planeness of Workpiece Face to Base (mm)

10000.02

17.工件表面粗糙度

Roughness of Workpiece Face (μm)

Ra0.8

Ra1.25

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