Junker ju center high speed grinding

Junker JUCENTER PRODUCTIVE CBN HIGH-SPEED GRINDING JUNKER partner for precision HIGH-PRODUCTION GRINDING FOR LARGE SERIES The JUCENTER CBN high-speed grinding machine combines complementary grinding possibilities both grinding processes take place in two separate clamping setups on one machine. The result: efficient grinding - all with precision. JUNKER JUCENTER EFFICIENCY MACHINE VERSIONS FOR NEARLY EVERY TYPE OF SHAFT Whether for camshafts, crankshafts, or gear shafts: the JUCENTER machine concept with its two grinding stations sets new standards. Grinding operations can be combined in one JUCENTER by combining different wheelhead versions. THE TECHNICAL CONCEPT JUCENTER allows for two grinding stations on one machine: Station 1 is generally for circular grinding with a grinding wheel bearing seats on camshafts or main bearings on crankshafts. Station 2 is for non-circular grinding cam shapes or pendulum grinding main bearings. Depending on workpiece-specific variants tolerances/quality Grinding station 1: Circular grinding of main bearings with grinding specifications, a JUCENTER can be designed with a right-to-left wheel set or left-to-right production and part infeed direction. INVEST LESS, PRODUCE FASTER Parts run through the machine in an uninterrupted sequence. The JUCENTER offers reduced total investment volumes as loading and unloading unit, auxiliary equipment and controls. Further potential savings result from less space required than individual machines, no inter- linking of machines, and no interim storage facility required. COMMERCIAL ADVANTAGES JUCENTER allows for two grinding technologies on one machine, JUCENTER offers major advantages over interlinked individual machines: Faster production time High process reliability Low overall investment Low space requirement Low operating costs Less manpower required TECHNICAL ADVANTAGES Controlled dimensional accuracy using in-process gauging Controls with Learning Function, automatic compensation high long-term accuracy with hydrostatic circular guides X-axis, infeed spindle, axial bearing Uncoupled processes Grinding of diameters on transmission with sets of grinding wheels JUNKER JUCENTER 3 GRINDING CONCEPTS FOR CAM, CRANK OR GEAR SHAFTS GEAR SHAFT GRINDING CRANKSHAFT GRINDING At station 1, JUCENTER grinds plunge-cuts and faces in a high- At station 1, CBN multiple-bearing grinding of all centric diameters speed gear shaft grinding process. With the help of a B-axis, the bearings and pivot takes place. Parallel to this, other grinding car- grinding spindle can be swiveled to grind plunge-cuts, as well as riages in the next clamping setup station 2 carry out non-circular faces with very fast cycle times. At station 2, multiple-bearing grinding - that is, the grinding of main bearings. This is done using grinding of all centric diameters takes place. the pendulum grinding method with separately controlled CBN grinding wheels. Depending on workpiece-specific factors, work- pieces can also be run in the opposite direction from station 2 to station 1. spindle 1 Station 1: shoulder grinding concave roll, undercut crowned roll, undercut spindle 1 spindle 2 Station 1 Plunge-cut grinding cylindrical roll, undercut spindle 1 Station 2: Diameter grinding Pivot grinding Flange grinding spindle 2 Station 2 Grinding of diameters, for example for gears 4 JUNKER JUCENTER TECHNOLOGY CAMSHAFT GRINDING At station 1, sets of bearings are ground with one plunge-cut, using multiple-bearing technology. At station 2, JUNKER offers a versatile solution for grinding a variety of cam shapes. By using two independent infeed axes on station 2 for non-circular grinding, the machine can grind cams with unequal radial alignment just as fast as when using a set of grinding wheels. JUNKER JUCENTER 5 CONTROLS JUNKER'S CENTRALIZED CNC SYSTEM CONCEPT A COMPREHENSIVE OPEN SYSTEM The idea: central control technology for all components in the grinding machine. All data and information is entered using the Erwin Junker Operator Panel. On the JUCENTER machines, this makes up the user interface for a FANUC CNC control system.

TELESERVICE FAST AND EFFECTIVE

Your main go-to for all questions and issues is JUNKER Services. When required, all of the available data on the machine status can be analyzed online. JUNKER provides this service to increase machine availability while keeping service costs down. ERWIN JUNKER OPERATOR PANEL STANDARDIZED FOR ALL MACHINES Graphic interface and interactive processes for programming and operation Reduced training costs Minimizes the risk of operator errors Quick changeover and set-up Storage of all grinding parameters Machine programming, can also be done centrally, i.e. basic mask for process engineering All components are accessible via Teleservice Identical operation of different machines, regardless of the controls used Standardized user interface for all components Automatic data backup, including settings for all components from third-party vendors

JUNKER JUCENTER EQUIPMENT AND OPTIONS VARIABLE EQUIPMENT AND INDIVIDUAL OPTIONS INTEGRATED LOADING GANTRY An integrated loading gantry reduces downtimes to an absolute minimum: it picks the blank up from the conveyor, brings it to station 1 and removes the ground part, which is then brought to station 2. The transfer options for blanks and finished parts outside the machine can be defined by the customer. MORE EXPERIENCE MORE SAFETY JUNKER is a pioneer in the use of CBN grinding wheels for high-speed grinding. This advantage with regards to experience and knowledge makes the company one of the leaders on the market. This is reflected in the long list of reputable customers that have enjoyed JUNKER technology for years. In addition, JUNKER grinding machines offer a sophisticated safety concept, which counteracts, for example, the risk of explosion that ensues from using oil as coolant.

STANDARD EQUIPMENT Vibration-reducing, torsion-resistant polymer concrete machine base Measuring equipment Hydrostatic circular guides, no stick-slip effect and with a Longitudinal and radial positioning 5-year guarantee with proper handling Air filter plants 3-point mounting system for grinding spindle, work spindle Steady rests and tailstock center sleeve Coolant plant Wheelhead with automatic dynamic balancing system Integrated loading gantry Grinding spindle for high-speed grinding over 140 m/s Workhead with hydraulic clamping External loading system RELIABLE FIRE PROTECTION CONCEPT THE JUNKER SAFETY SYSTEM since the machines partly use oil for coolant, there is a risk of fire and explosion. The JUNKER safety system prevents damage to machines and facilities. In the case of explosion, the machine interior is automatically sealed off, preventing fire from breaking out tested by the Institute for safety Technology IBExU. Upon request, additional extinguishers CO2 or water-atomizing and exhaust filters can be installed. Higher productivity thanks to longer tool life and dressing cycles, as well as significantly fewer wheel changes.

JUNKER JUCENTER EUROPE Erwin Junker Erwin Junker Erwin Junker Machinery GmbH Grinding Technology Grinding Technology Plant House Russia Branch Office Junkerstrasse Yaroslavl JUNKER Germany Czech Republic Russian Federation GROUP info info junker-russia. ru Erwin Junker LTA Lufttechnik GmbH LTA Industrial Air Cleaning Makina Sanayi Ticaret

JUNKER partner for precision