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PRODUCTS SHOW
CONTACT US
Tel: 0086 916 2298015
 
Fax: 0086 916 2296146
 
E-mail: export@hjmtc.cn  
 
E-mail: hehengrong@hotmail.com
Complete set of ball screw pro

S7420×750 Screw Grinding Machine

hits:491 createtime:2017-08-15 11:51:11

Finished parts

【Main use】

The machine is mainly used for grinding screws with Whitworth & Acme thread and ball-screws precisely

【NC system configuration】

【Working accuracy】

The accuracy of tests with cylindrical thread

Periodic pitch error over one turn of a complete helix  0.006mm

At any length of300mm                                  0.012mm

Over entire length of thread                           0.029mm

Roughness                                              Ra0.32μm

【Technical characteristics】

1、Table rails adopts a flat-and-V sliding structure,while wheel stock rails a flat-and-V rolling structure。

2、The wheel spindle is supported with precise hydrostatic bearings

3、The speed of work spindle is regulated steplessly with the help of a frequency converte

4、The change of pitch is obtained with change gears.。The accumulative pitch error is corrected by means of the correction bar in the front of the table

5、The tailstock is with a double-lay structure for taper adjustment

6、A hydraulic cylinder drives rapidly wheel stock advance and retreat。Dressing feeding and grinding feeding are conducted manually with coarse & fine mode

7、Wheel dressing is made by a copying plate with a fixed arc。If required by the user, the machine also can be equipped with a triangle wheel dresser to dress grinding wheel into triangle profile。

8、The machine is equipped with an enclosure cover and a high efficient oil mist exhauster

9、A magnetic separator is provided for cooling liquid cleaning

【Main specification parameters】

1、Max. mounting diameter 200mm
2、Max.center height 750mm
3、Max. diameter to be ground 200mm
4、Min. diameter to be ground 10mm
5、Max. table stroke 500mm
6、Pitch range
   Module thread 0.3π~12π
   Metric thread 0.25~24 mm
   Inch thread 3~28 teeth/inch
   Acme thread 2~24mm
7、Thread start number 1~36
8、helix angle range ±30°
9、Taper of center hole on workhead(tailstock)  Morse 4#
10、work spindle speed
    In grinding (Stepless) 0.2~25,0.8~100r/min
    In rapid return(Stepless) 25,100r/min
11、Wheelhead cross traverse 150mm
12、Wheelhead rapid traverse 30mm
13、Speed of wheel spindle 1670、2145r/min
14、Max. Wheel peripheral speed 35m/s
15、Wheel size
    OD.×Width×ID. P400×10×203
    Width 10、20mm

Copyright of: Shaanxi Hanjiang Machine Tool Co., Ltd.  Record number: 05008229 -1  

 Tel: 0086 916 2296 146      135 0916 8925  Fax:0086 916 2296 146 

Address: Hedongdian Town, Hanzhong City, Shaanxi Province, China   E-mail:export@hjmtc.cn  hehengrong@hotmail.com