Modernization of the ŠKODA E20 rotary table

Client

Doosan Škoda Power Ltd

A major manufacturer of steam turbines, heat exchangers and related power equipment.

Service

Modernization of machines

Sectors

Energetics

It's a challenge

Increasing the production possibilities of horizontal boring machine in the production of complex parts.

Implementation of the rotary table into the control system of the machine.

The solution

Consultation and analysis of needs

Our team performed an analysis of the customer's needs and its production process.

Proposed solution

  • Based on the customer's requirement, we designed a complete modernization of the rotary table, both its mechanical parts, hydraulics and electrical components.
  • During the modernization, among other things, all guideways were re-grinded and scraped, new servo motors and planetary gearboxes were installed for the axis drives, the table received a new mechanical-hydraulic locking system. The hydraulics and lubrication were completely modernized. Telescopic covers were installed to protect the guideways.
  • The control system of the machine has been modified for the possibility of using the rotary table in automatic mode.

Installation

We took care of installing the table to the machine.

After commissioning, we checked the correct operation of all groups and adjusted the equipment to the required accuracy.

Outturn

Thanks to our solution, the customer has increased the utility value of the machine and achieved higher precision in the production of components.

Achieved high positioning accuracy in both linear and rotational axes.

Linear travel

Positioning Accuracy Parameters VDI/DGO 3441

Parameter

Tolerance [µm]

Measured [µm]

Positioning uncertainty P
10:50 p.m.
9,474
Positioning error Pa
12:50 p.m.
5,920
Max. positioning dispersion Ps max
8 a.m.
5,734
Positioning dispersion Ps medium
2,598
Max. reverse error U max
1.2
1,080
Cv. Reverse Error U Stř
0.366

Rotational axis

Positioning Accuracy Parameters VDI/DGO 3441

Parameter

Tolerance [µm]

Measured [µm]

Positioning uncertainty P
±8"
5"
Positioning error Pa
±8"
3"
Max. positioning dispersion Ps max
±4"
2"
Positioning dispersion Ps medium
Max. reverse error U max
4"
1"
Cv. Reverse Error U Stř

Other successful projects

Herrenknecht AG, Schwanau, Germany

New Heavy Duty Vertical Lathe with Movable Portal VTLD 80-120 GANTRY

Heavy engineering

New machines - own production

Howden ČKD Compressors s.r.o., Nehvizdy

Moving and overhaul of the vertical lathe SKJ 25-50

Heavy engineering

Specialized service

MEZ, a.s. Nedvedice

Modernization of the SKQ 8 Vertical Lathe to CNC

Ecology

Modernization of machines

ČKD Blansko Holding, a.s.

Modernization of the rotary table

Energetics

Modernization of machines