M77A CNC spring grinder
 
 
 
 
 
 
一、charaters
1: there is no need to the face of trimming grinding wheel. This product is our company patented product. When it workers, the face of wheel keeps in same level, and the spring is vertical still, so there is no need to adjust wheel. This patent works out the wheel uneven when it workers .Whatever it is automatic or manual torsion machine in or outside China, they can not deal with this uneven phenomenon while it workers.
   
2: high productive efficiency. This spring machine productive efficiency is two times than recently normal automatic machine, because it adjust the whole spring on wheel in same time.
3:Safety and pro-environment: all open or close door of wheel is automatic and all spring grinding is in a whole sealing wheel box, which is not only safe but also pro-environment. It deals with the problem that exist in many automatic and manual grind spring machine that many milestones outside of wheel box which means grinding spring can not be in a whole sealing box which will be a big pollution.
二、     styles and specifications

specification
M7740A
M7760A
M7775A
M7790A
      wire diameter
0.4-6.0
1-10
2-16
3-22
spring diameter
5-70
8-120
12-160
20-200
spring height
5-170
10-250
15-350
20-450
productive
0-120
0-120
0-100
0-100
power
7.94
14.7
27.5
37.1
height errors while loose
According to spring height and circle
Perpendicularity errors
Common type: 0.35 ° (1% multiplied by the spring length), JingMiXing: 0.25 ° (0.727% by spring length)
Spring shape
Colum
Feeding construction
Double feeding
grinder
Double end vertical type
Grind situation
Dry type
Biggest feeding diameter
420
630
800
950
wheel
400*300*55
600*400*75
750*500*90
900*600*110
weight
2500
3500
6500
9500
Volume
1600*1800*1680
2000*2300*2200
2350*2500*2500
2500*2800*2750

 
       Put the spring to grind hole on the plate vertically, then press start.  grind plate will put the whole spring to the wheel box, while the wheel box door will closed automatically. The upper grinder will be down while lower grinder no movement mostly. Of course lower grinder can be figured to move up. Upper and lower grinder both be controlled by servo. When the upper wheel is going round, both of spring end is grinded. In this progress, the whole spring is moving on the face of two wheels, which will keep spring vertical still, wheel grind uniformly, and wheel face in same level. When wheel is going round to the right position which is figured, wheel and spring grind will stop. Then wheel will be back to the original place where it starts. At the same time , the wheel box door will open. The spring swing device will send whole spring out of the wheel box to the plate. Then the next spring is ready. The only thing you do is press start. Move the plate spanner, the spring will go in to funnel, then take it. wheel abrasion is automatic compensation
四、machine specification
1、voltage:380v
2、frequency:50hz
3、numerical control card American brand ,GALIL or  Siemens
4、PLC: korea brand ,LD  or Siemens
5、computer: Chinese ,brand NODKA or Siemens
6、SYSTEM: JIADU
7、servo: japan brand:.yaskawa or Siemens
Remarks: some parts could be chose according to customer's requirement

 

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