Semiautomatic CNC gear-grinding machine VZ-676F4 is manufactured according to the performance specification approved by the Buyer. The semiautomatic machine is designed for grinding along flank surfaces of spurs and helical gears with external teeth by profile grinding.Grinding of gears is carried out by the method of copying.

The gears are machined in a semi-automatic cycle. Installation and removal of parts is done manually. There is an automatic mode for dressing the grinding wheel, both roughing and finishing are possible. There are two schemes for straightening a circle with a diamond roller: passing and counter.

The counter correction scheme is selected when the grinding wheel and the diamond roller rotate to meet each other, while the ratio according to the formula must be maintained:

G = V_p / V_kp = 0.5 ... 0.75

Vp is the linear velocity of the diamond roller m / s.

Vkp is the linear speed of the grinding wheel m / s.

Assembly assemblies of the semi-automatic machine are designed as separate units, which facilitates their assembly and disassembly during repair (transportation). The base serves as the base on which the basic assembly units are mounted:

Applied grinding wheels are mainly abrasive aluminum oxide wheels that can be profiled directly on the ma-chine. If required, highly resistant CBN special vitrified profiled wheels with possibility of their periodical dressing on the machine can be used.

Download the technical offer (specimen, PDF)
The parameters marked with (*) are specified at the stage of the technical task coordination.
Product Indicators, machined:
Size of the blank to be installed Max. diameter of the blank, mm 360
Module range, mm 1...10
Width of the spur gear rim, mm Max. width of the spur gear rim (in the set of gears), mm: 360
Parameters of working and adjustment travels:
Max. working travels along controlled coordinate axes: Longitudinal travel of the table with the blank (X-axis), mm; 600

Vertical travel of the grinding wheel (Z-axis); 130

Cross travel of the grinding wheel (Y-axis); 300

Of the dressing mechanism carriage (U-axis); 80

Swivel of the workpiece headstock spindle (А-axis), deg. unlimited

Swivel of the wheelhead to the helix angle of the tooth (C-axis), deg. ±30
Number of controlled axes 6
Performance tool that is installed on the machine:
Dimensions of the installed wheel, mm Bore diameter of the grinding wheel, mm 127

Max./min. (wornout) diameter of the grinding wheel, mm 350/250

Diameter of the dressing diamond roll, mm 150
Indicators of primary and secondary movements:
Max. working feeds along controlled coordinate axes: X-axis, m/min; 20
Y-, Z- and U-axes, m/min; 6
A-axis, rpm; 30
C-axis, rpm; 5
Spindle speed, rev / min 1000...3000
Indicators Power of machine:
Power of the main motion motor, kW 7,5
Parameters of accuracy and roughness:
Accuracy class of the semiautomatic machine to GOST 13086-77 B
Achieved accuracy grade of the reference workpiece machining ≤ 5 to GOST 1643-81
Аccuracy and roughness of samples machining Roughness of the machined tooth surface Ra≤0,63
Electrical equipment specifications
AC current frequency, Hz 50
Nature of supply AC, 3-phase
Voltage, V 380±10%
Dimensional characteristics:
Dimensions (LxWxH) mm 2400х4700х2625
Weight, kg 8000

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Semiautomatic CNC gear-grinding machine VZ-676F4

  • Product Code: VZ-676F4
  • Availability: Pre-Order