Lavingia Enterprise

Vatva, Ahmedabad, Gujarat

Max difference between base-circle & outer-circle25mmDeviation from master profile < 0.015mm (15 )Generating cam made on the same machineProfile can not have negative radiusWheel-Head & Follower slides on linear bearingsGrinding spindle, Follower and Work-Headshafts on precision angular contact bearingsAC Variable speed drive for work-head & swivel-table.

• Wheel-Head slides driven by core-less cog-free linear-servomotor. There is no physical connection between the slide base and slide saddle - no ball - screw. This means no back - lash compensation and no ball-screw related maintenance problems, ever.
• Wheel-Head slide supported on rolling element linear bearings. These result in highly responsive and backlash free movement.
• Linear scales for position feedback on both axis provide actual position feedback and not interpolated position feedback. This results in much higher reliability and operational accuracy. X-axis (radial feed) resolution is 0.5 (0.0005mm). Z-axis (axial feed) resolution is 5 (optional 1 micron). Both feedback scales are distance-coded (semi-absolute).
• Grinding wheel shaft and work-head shafts supported on super precision angular contact bearings. These are packed with long life grease for maintenance free operation through out the bearing life.
• Our proprietary EazyGrind query based component profile / data entry eliminates ISO programming by operator. The operator is led through a step-by-step building of the component profile/parameters via a query based data entry. The operator simply provides the necessary numeric values. During data entry EazyGrind recommends the optimum speeds/feds based on the component dimensions. Operator has freedom to decide the most desirable feed/speed within a specified range; thus, eliminating sub- optimal machine utilization and guestimate bases speed/feed values. Following this data entry session EazyGrind generates the grinding program, stores it and is ready for execution automatically. Dressing and dressing compensation are also part of the same query based data entry. Programming in G-code is, of course, possible
• Work-Head (Spindle) drive is by AC variable frequency drive; the drive is controlled by the CNC controller. Tails-stock is spring loaded and retracted by pneumatic cylinder. Hydrauically operted tail-stock is also offered.
• Single point diamond dresser is mounted on the Tail-stock or on the work-table. Rotary (cup-wheel type) dresser driven by a servo motoris optional. Diamond-roller-dresser for wheel profiling is also available. Besides programmable 'dressing frequency', 'on-demand-dressing' is also standard within EazyGrind.

Two Models 1.For Flat Circular Objects: e.g. Steel Centers for diamond tipped circular saws, Or for carbide tipped circular saws, HSS circular saws, etc. with magnetic chuck. 2.For other types of components: e.g. Automotive Gear Face Grinding, Submersible pump bowls/stages face grinding, etc. Fully automatic processing & dressing cycle, auto size control. PLC based controls, stepper motor drives for feed slides. Grinding and work-head shafts on ISO:P4 class bearings, grease packed for life Feed Slide on Linear Bearings. Min. Feed Resolution 0.005mm (5).

• Steel Centers of Diamond tipped circular saws for stone cutting.
• Carbide tipped circular saw centers.
• HSS Circular Saws.

Application: Bearing components, automotive components. Gear bore grinding Salient Features CNC or PC based control options. All slides on anti-friction bearings Auto-dressing & dressing compensation On-Demand Dressing Suitable for super-abrasive grinding media. Dresser Options Single Point diamond tool, Rotary cup-wheel or disk or diamond roller Grinding Spindle Options - Belt driven -3.75 kW, up to 45000 RPM Motorized High Frequency -up to 120000 RPM Work-Holding Options : Diaphragm Chuck - Plain or PCD locating, 'Shoe-Centerless' with EMag Face clamping Collet Holder, Special fixture to suite application Component Handling AUTO-Loading/Unloading devices to suite application In-process gauging devices (Optional) to suite application

• Ball & roller bearing inner race track grinding.(cylindrical, conical or spherical)
• Front Axle universal joint cage OD grinding (complex profile)
• Angular contact bearing raceway on inner race.
• Water-pump (integral shaft) bearing shafts.
• Textile (bottom roller) bearing axles

• linear servo motor direct drive for wheel slide. The cog-free drive eliminates physical connection between driving & driven members eliminating ball-screw, back-lash, and ball-screw related accuracy and maintenance problems.
• wheel-slide supported on highly responsive preloaded linear-bearings. This along with 0.0005mm feedback resolution delivers highly reliable repeat accuracies.
• grinding wheel spindle shaft and work-head shafts are supported on super precision bearings which are grease packed for bearing operating life.
• eazygrind, our proprietary query based component-profile, grinding parameters, and data-entry facility, eliminates part programming requirement. The operator is led through step-by-step process of building the component profile and grinding/dressing process. Operator responds to component geometry queries and eazygrind suggest optimum speed/feed parameter values. Operator may modify these values within limits to optimize component processing. This eliminates guestimates regarding speed/feed values and ensures near optimal machine utilization. Eazygrind there after generates the necessary component processing code, stores it and is ready to process.
• dressing & dressing compensation as well as ob-demand-dressing are part of eazygrind. Various dressing devices are available single point diamond is standard; rotary (servo-drive) dresser with either disk, cup-wheel, or diamond-roller are also available.
• work-head drive is by ac variable frequency drive controlled by cnc controller. Tail-stock, retracted by compressed air, is spring loaded. Hydraulically retracted/loaded tail-stock is also offered.