Recommended Industry and Workpiece
Grinding machine Machine tools Machine tool bed and columnGrinding machine Various machine parts Various machine parts
Product characteristics
High precision
- Rigid construction
- Heat deformation suppression
- Precise spindle
- Vibration suppression
- Precise feed mechanism
- Coolant temperature control(option)
Abundant additional technology(options)
- Automatic measuring device of grinding allowance
- Convex/Concave grinding device
- Automatic grinding wheel changer
- Palette changer
- Tandem table system
Excellent operation
- CRT Built into concentrated pendant control box(Current position display)(Grinding program display)
- Spark-on control
- CNC automatic operation
High precision
Horizontal spindle grinding head
- Accurate vertical and horizontal feed of the grinding head is controlled by AC servo.
- The slideways are coated with low friction fluoro-plastic plates.
Dressing device
- The hydraulic dresser feed uses precisely finished dovetail slideways.
- Angled faces are dressed automatically with the index coupling(in 5[degree]steps)
- Under programmed operation, the dressing infeed and opening and closing the grinding wheel cover are performed automatically.
Hydrostatic bearing grinding spindle
The grinding spindle is constructed with high rigidity, high precision, low vibration, hydrostatic bearings.
Universal grinding head
- Rotation of the grinding head is indexed, precisely and automatically, in 5°steps(1°steps to special order) by the index coupling.
- Accurate vertical and horizontal feed of the grinding head is controlled by AC servo motors and precise ball screw.
- The slideways are coated with low friction fluoro-plastic plates.
Dressing device
Using the grinding head’s own feed mechanism, the grinding wheel can be dressed automatically with various forms by the diamond tool which is set at the lower right hand end of the crossrail.
Spindle
The grinding spindle is a spindle unit which uses high rigidity, super recision bearings.
Excellent operation
Pendant control box
The CNC Control Panel is built into a pendant control box from all which all operations of the machine are controlled. These include:all manual operations such as grinding head and table driving, simple grinding cycle settings, NC program editing, MDI operations.
Setting grinding mode
The grinding mode for manual grinding operations, such as plunge grinding and traverse grinding, can be set simply by using the digital switches and the select switches.
Spark on control device
This device automatically brings the grinding wheel close to the workpiece and stops when operating load on the grinding spindle changes as the grinding wheel touches the workpiece. The directions of approach are downwards for the horizontal spindle grinding head and up, down, left or right for the universal grinding head.
CNC automatic operation
- All operations, including vertical and horizontal grinding head feed, table driving and dressing operation, are controlled by the CNC Controller.
- High volume, repetitive processing operations can be fully automated with numerically controlled programs which are thoroughly interwoven with operator know-how.
- For low volume operations, the operator can easily set up the operating cycles of a pre-set system.
Grinding flow chart
CNC control equipment specifications
| Item | Specifications |
|---|---|
| CNC control equipment | FANUC Series 31i |
| Controlled axis （ ）denotes additional axis |
Y, Z, V, W, A, (X), B, ＊C, AA, BB, CC |
| Simultaneous controllable axis | 4 axes (positioning and linear interpolation) |
| Minimum increment system | 0.001mm |
| Tape code | EIA or ISO (automatic recognition) |
| Decimal point input | Yes |
| Rapid traverse rate | 6000mm/min (Y, V axes） 3000mm/min (Z, W axes） |
| Rapid traverse override | 0％,25%,50%,100% |
| Freerate command | mm/min units, F4 digit direct designation |
| Feedrate range | (manual operation) 0～1500mm/min(21 notches) (automatic) F4 digit command |
| Feedrate override | 0〜200% |
| LCD&MDI panel | 10.4inch(＊15inch) color&full-keyboard |
| Custom macro | Yes |
| Command system | Both absolute/incremental commands |
| Post program length ＊1） | 640m ＊max.20480m |
| Tool offset memory ＊1） | 999 ＊max.2000 |
| Registered program storage ＊1） | 500 ＊max.4000 |
| Custom macro common variable ＊1） | 600 |
| Reference point return | No.1 No.2 ＊1 ) No.3 No.4 |
| Position detection system | By pulse coder, semi-closed loop type |
| Coordinate system and coordinate system setting | G92, G52, G53, G54〜G59 |
| Various functions |
|
＊Optional accessories
＊1）Includes quantities used by standard grinding programs supplied by us.
Abundant additional technology(options)
Automatic measuring device of grinding allowance
・With this device fitted to the grinding head, the accuracy of the workpiece on the ground surface is measured automatically. All measuring is performed automatically in accordance with the numerical control program and the results of the measuring are input automatically to the CNC equipment for head positioning and grinding allowance. This means less tine is needed for pre-processing measurement and grinding can be fully automated.
Measuring grinding allowance
Measuring thickness
Convex/Concave grinding device
- Because the vertical and horizontal movements of the grinding head(universal grinding head) are synchronized with the table movement by a pre input NC program, cured surface can be ground. This avoids the necessity skilled operator and ensures constant accuracy.
- Concave and convex forms are set by the NC program so changes and additions to shapes are easily made and several workpiece may be ground simultaneously.
Automatic grinding wheel changer
- This device automatically changes the various grinding wheels used on the universal grinding head.
- The grinding wheel, flange and grinding wheel cover are changed together as one unit.
- The grinding wheel is clamped by dish spring and unclamped hydraulically(pullstud system)
- After the grinding wheel has been changed, its dynamic balance is adjusted automatically. Also, depending on the
number of grinding wheels to be stored, either of the following systems may be selected.
- Rotary magazine system(4 wheels)
- In-line palette system(extra grinding wheels can be added)
Rotary magazine system
In-line palette system
Automatic grinding changer, in-line palette system
Palette changer
8 rotary palette pool system
- Reducing the time required for setting up and carrying the workpiece and in and out, improve efficiency and saves labor.
- Various palette changers can be used to suit space and layout.
- 8 rotary palette pool system
- Multistory palette pool system
- The common use of palettes by the machining center leads to integrated factory automation.
Multistory palette pool system
Tandem table system
The tandem table system combines improved working efficiency through reduced set up time with high precision grinding of large workpiece.
While table A is grinding, table B is stopped. This enable workpiece to be set up, removed or measured while the machine is operating, which increases the operation efficiency of the machine.
Coupling and separation of Table A and Table B is automatic.
Since Table A and Table B can be used while coupled together, long workpiece can also be ground.
Grinding center
- CNC Guideway & surface grinding machine with the automatic grinding wheel changer and the palette changer.
- This is a fixed crossrail, single universal grinding head.
Optional accessories
Coolant separator
Choose from the following, depending on the workpiece and finish required.
- Magnetic coolant separator
- Magnetic coolant separator with paper filter
- Other
Coolant temperature control device
The coolant temperature is maintained constantly at he temperature of the main machine by a heater and cooler installed in the coolant tank.
Heat deformation suppression
Coolant circulated inside the table suppresses heat deformation of the table due to the heat generated by the hydraulic cylinder and the stabilized table movement permits finish grinding at any time.
Dynamic wheel balancing device
The dynamic balance of the grinding wheel can be simply adjusted while the grinding spindle is rotation. There are two systems.
- Interval balance pieces in the spindle.
Enclosed in the end of the grinding spindle are two fan-shaped balance pieces. Dynamic balance of the grinding wheel is effected by controlling their angle of rotation. - Interactive balance device
By automatically displaying the unbalance vibration value during rotation of the rotating shaft and the appropriate angle of the three balance pieces provided on the whorling flange, it is possible to minimize the dynamic balance of the palm gutter easily. Once balanced you can keep it for a long time.
Crossrail level adjustment device
The adjustment can be made while observing the crossrail level in the CRT display on pendant control box. With a specially specified program, the adjustment can be made automatically.
Grinding wheel flanges
Case study
We decided to continue buying from them because we have established a relationship of trust.We also improved our working environment thanks to the various proposals they made.
Product specifications
Machine specification
※Please check the catalog for product specification details
