JUCAM - cam grinding
12Pages

PURELY A MATTER OF FORM The non-cylindrical grinding machines of the JUCAM series impress with precise grinding results in a single clamping set-up. Thanks to the control system with learning function – with which virtually all disturbing variables are compensated – camshafts, cam pieces and individual cams are given a perfect finish. Decades of experience in grinding cams, in combination with the many special solutions and a wealth of expertise, have convinced engine and pump manufacturers worldwide.

GRINDING PROCESS with chamfer With radius CAM GRINDING Grinding machines for grinding camshafts, cam pieces and individual cams combine non-cylindrical grinding for the cams and cylindrical grinding for the bearings. With non-cylindrical grinding, the grinding wheel follows the cam contour through interpolation of the workpiece spindle (C-axis) with the grinding spindle (X-axis). CBN or diamond are used as an abrasive – for high cutting performance with a constant level of quality and a long tool life. The cam geometry is specified in a elevation table. In the process, each angle is...

ECONOMICAL GRINDING WITH LEADING TECHNOLOGY WORKPIECE SPECTRUM The grinding machines of the JUCAM series grind camshafts, cam pieces and individual cams in all series production sizes. In addition to the cams, the bearings and the flat shoulders can also be ground in a single clamping set-up. Decades of experience in grinding with CBN guarantees maximum accuracy with extremely short cycle times. JUNKER • JUCAM The grinding range covers all cam shapes – with or without a chamfer or radius: • cylindrical/conical • concave/convex • polygonal/elliptical • with tangent with tangent

HIGHLIGHTS AND SPECIAL SOLUTIONS HIGHLIGHTS • Broad range of grinding solutions for camshafts, cam pieces and individual cams • High utility value through adjustment to respective grinding assignment • High long-term precision due to hydrostatic round guides • Maximum repeat accuracy thanks to CBN or diamond abrasives • Minimized undulations due to grinding wheel balancing on two levels CAM PIECES When grinding cam pieces, it is essential that the exact angular reference to the inner toothing is ensured. For this reason, the JUCAM clamps the cam pieces with an inner clamping mandrel. The...

EQUIPMENT AND OPTIONS LEARNING FUNCTION The JUCAM's control system comes with automatic compensation of runout and disturbing variables such as temperature influences, grinding allowance fluctuations or material changes. Even minimal deviations between the target and actual position of the grinding wheel are automatically corrected. STEADIES The self-centering, three-point steadies ensure centric support despite the possibility of different workpiece diameters. Tracking hydraulic jaws guarantee a balanced ratio of forces at all three support points, and with it a grinding process with...

CONTROL SYSTEM The Erwin Junker Operator Panel was specifically developed to control grinding machines. All machine components are controlled using the operator panel – irrespective of the series and the used control system. The identical structure, intuitive menu guidance and visualization of the workpiece geometry make for extreme user convenience and flexibility in operation. Programming takes place directly using the operator panel or an external programming tool. AXIS DRIVE AND GUIDANCE With platforms 1 to 8, the wheelheads traverse along the Z axis. The mechanical direct drive uses...

LOADING SYSTEMS JUNKER offers both internal and external loading systems for all its machine series, depending on customer and workpiece requirements. The loading systems can be combined with different infeed and discharge systems such as conveyor belts or custom tailored systems. MEASUREMENT SYSTEMS The measurement systems are also individually adjusted to the various workpieces and customer specifications. The measurement processes entail evaluating the recorded measured values and utilizing them for measurement correction in line with the prepared measurement strategy. A grinding wheel...

FIELDS OF COMPETENCE TECHNOLOGY CENTERS The JUNKER Technology Centers in Nordrach, Germany and in Holice, Czech Republic offer a wide selection of grinding machines for demonstrations and customer-specific grinding tests. These facilities give potential buyers and customers the chance to be impressed by the technical and economic performance of JUNKER and ZEMA grinding machines and test them on their own workpieces. SERVICE The company group‘s growing sales and servicing network ensures satisfied customers worldwide. JUNKER Premium Service acts swiftly and with outstanding expertise...

TECHNICAL DATA Grinding length Clamping length Center height Grinding wheel diameter (max.) Peripheral diameter Available wheelhead versions Workpiece weight W x D x H mm (without peripherals) Weight WHEELHEAD VERSIONS JUNKER • JUCAM

JUCAM • JUNKER

EUROPE Erwin Junker Maschinenfabrik GmbH Junkerstraße 2 77787 Nordrach Germany Erwin Junker Grinding Technology a.s. Plant Holice Pardubická 332 534 13 Holice Czech Republic Erwin Junker Grinding Technology a.s. Russia Branch Office Prospekt Tolbukhina 17/65 150000 Yaroslavl Russian Federation Erwin Junker de Mexico, S. de R.L. de C.V. Blvd. Bernardo Quintana #7001 Torre 2, #1203 Centro Sur Querétaro Qro., C.P. 76079 Mexico Erwin Junker Máquinas Ltda. Centro Administrativo Rio Negro Edifício Jaçari - Bloco A 13° andar cj. 132/133 Alameda Rio Negro 585 CEP 06454-000 Alphaville – Barueri, São...