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Vertical Compound Grinding Machine
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Vertical Compound Grinding Machine

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CNC vertical composite grinding machine for inner bores, end faces and external diameter

 
VM, VHM, DVM series high-precision CNC vertical composite grinding machines are vertical composite grinding machines with full closed-loop digital control independently designed and developed by the Company. The grinding machines have a vertical layout and double-column structure. High-precision liquid hydrostatic rotary table is air-tight and wear-free and may realize longer service life and accuracy retention time.

Reasonable and compact structural design; the workpiece can be clamped once to complete the multi-process grinding processing of the inner hole. outer circle and step surface, to ensure that the parts of the higher requirements for positional accuracy; widely used in bearings, wind power, construction machinery, valves, automotive and other industries.


 
  • Vertical Single-Spindle Compound Grinding Machine
  • Vertical Dual-Spindle Multi-Function Grinding Machine
  • Vertical-Horizontal Twin-Spindle Multi-Function Grinding Machine

Working Environment and Processing Capacity

  • Processing capacity
      Suitable for I.D., O.D. and end face grinding of heavy, non-circular workpieces.
     Heavy workpieces can be fixed on the fixture by hanging.
     Free combination of single spindle, double spindle, tool changer or no tool changer.
     Easy clamping operation may significantly reduce the preparation time for loading, unloading, alignment etc.
     No need of setting the processing site, automatic compensation of workpiece size, automatic compensation calculation of grinding wheel position compensation.
    Double spindle models can be provided with high and low speed grinding wheels, or one vertical and one horizontal spindles.
  • Characterisation
     Siemens 828D CNC system adopted in the machine can realize multi-axis servo control.
     To meet the processing requirements, automatic and manual (electronic handwheel) control can be carried out for each processing element of the parts.
     Fully enclosed protection may offer excellent operability, maintainability and safety.

    Operating environment of the machine: (user provided)
    Ambient Temperature: 10-35°C ;optimal temperature 20±2°℃;
    Relative Humidity: ≤85%;
    Working Power Supply: three-phase AC 380V±10%, 50±1%Hz；
    Dry Clean Gas Source Pressure: ≥0.7MPa, Flow Rate: ≥50m3/h;
  • Workpiece dimensions
    Size
    Vertical compound grinding machine55: （OD) 280×200×180mm
    Vertical compound grinding machine85/125/160: （OD)400×300×250mm

    Material
    Grade 45 Carbon Structural Steel or Gray Cast Iron HT300
  • Test item accuracy evaluation
    Test item Test accuracy (Manufacturer) As-Measured (For Reference)
    Roundness 1.0μm(2.0μm*1) 0.5μm
    Cylindricity 2.0μm 0.85μm
    Coaxiality 2.0μm 1.0μm
    Roughness Ra0.20μm Ra0.17μm
    Verticality 2.0μm 0.18μm
     
    1.The roundness specification set by the manufacturer for models Vertical Compound Grinding Machine 125 and above is 2.0 μm.
    2.The data in this table are actual measured values (for reference) obtained from the Vertical Compound Grinding Machine 85.


    Positioning Accuracy & Repeatability: Linear X &Z Axes (Reference)
      X-Axis (Ref. Measured Data) Z-Axis (Ref. Measured Data)
    Positioning Accuracy 3.45.0μm 2.75μm
    Positioning Repeatability 2.65μm 2.22μm

    This data was obtained in accordance with the measurement method specified by international standard ISO 230/2 (1988). The machine tool was set up based on the manufacturer's specified measurement procedure and operated in an ambient temperature of 22°C ±1°C.
     
     
     
  • Standard accessory tools (shanks - grinding wheels)

    Vertical Compound Grinding Machine 55/85/125( The following 6 types of accessory tools are available)

    Standard-accessory-tools-(shanks---grinding-wheels)

     

     The grinding wheel with maximum diameter of p 255 mm ( 305 mm) can be stored in the ATC unit. However, the size of adjacent toolshould be limited to A 180 mm or less.
    *Vertical Compound Grinding Machine 85/125

  • Control Panel
    Control Panel Interface

    In terms of the control panel, the dialogue box on 15.6 inch touch screen ensures more efficient, user-friendly and easy systeml operations. In such user-friendly dialogue box mode, just enter the parameters so that the program automatically calculates the cross section parameters of the grinding wheel. Perform one key touch to generate the program for automatic calculation of the machining path and automatic dressing of the grinding wheel. On the operation interface we can see the processing path and operate in a morel concise and convenient manner.

     
    Control Panel Interface

Typical Example

  • Automatic grinding wheel dressing
    Automatic grinding wheel dressing
  • Diamond roller dresser
    Diamond roller dresser
  • Equipped with high-precision gauges
    Equipped with high-precision gauges
  • ATC automatic tool change system
    ATC automatic tool change system

Machine Specification

Item   VM55 VM85 VM125 VM160
Basic parameters Workbench size mm Φ550 Φ750 Φ1150 Φ1600
Maximum workpiece swing diameter mm Φ550 Φ850 Φ1250 Φ1650
Maximum workpiece height (with fixture) mm 450 600 600 600
Spindle workbench loadable weight kg 900 3000 6000 8500
Workbench rotation speed r/min 20~350 8~200 5~100 5~80
Processing capacity Hole diameter grinding range mm Φ30~Φ400 Φ50~Φ800 Φ50~Φ1200 Φ50~Φ1600
External circle grinding range mm ~Φ500 ~Φ800 ~Φ1200 Φ1650
Grindable length (inner bore) mm 225 (For tools ≤ ∅200 mm, with length ≤250 mm)
225 (For tools > ∅200 mm, with lengths ≤150 mm)
325 (For tools > ∅200 mm, with length ≤ 250 mm)		 325 (For tools ≤∅ 250mm)
400 (For tools ＞∅ 250mm, with length ≤250mm)
485 (For tools ＞∅ 250mm, with length ≤350mm)
Grindable length (external circle) mm 275 (flat wheel grinding、∅ 255 wheel, tool length 150)
125 (inclined wheel grinding, same diamter)		 400 (flat wheel grinding, tool length 250)
500 (flat wheel grinding, tool length 350)
150 (inclined wheel grinding, same diameter)
Wheel Spindle Shank type   HSK-A63 HSK-A100 HSK-A100 HSK-A100
Power kw 15 15 15 15
Maximum speed r/min 2500-15000 2500-10000 2500-10000 2000-8000
Grinding Wheel Size mm ∅25~∅255 ∅45~∅305 ∅45~∅305 ∅45~∅305
Grinding Wheel Changer     HSK-A63-6T HSK-A100-6T HSK-A100-6T HSK-A100-6T
Wheel Turret Indexing Angle deg 0,   22.5 0, 22.5 0, 22.5 0, 22.5
Linear servo axis X-axis travel mm 1100 1350 1800 2200
Z-axis travel mm 660 660 660 700
Minimum Motion Increment mm Φ0.0001 Φ0.0001 Φ0.0001 Φ0.0001
NC SIEMENS   Sinumerik 828D
Machine weight (kg) Net weight kg 14000 16000 19000 22000
 
*Notes:
1. The above specifications are given mainly based on the size of rotary table size. Tool change or no tool change can also be selected;
2. The above specifications and configurations can be customized according to processing requirements of customers.
Phone:
+86-18915806777
+86-0564-5176999
Email:
sun@bdfkp.com
Whatsapp:
+86-18915806777
About us
A high-tech manufacturer of advanced CNC grinding machines with strong R&D and large-scale production.
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