Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for BERGER MEGA POINT
- Page 1 UNIVERSAL OPTICAL DRILL GRINDING MACHINE O P E R AT I N G I N S T R U C T I O N S BERGER AG • Dept. Bohrerschleiftechnik C.F.L. Lohnerstrasse 28E • CH-3645 Gwatt/Thun Telefon +41 (0) 33 336 15 66 • Telefax +41 (0) 33 336 16 66...
-
Page 2: Table Of Contents
Contents Contents Safety instructions General safety instructions ......................1 This is the symbol for your safety ....................1 Protective devices ........................... 1 Safety and accident prevention regulations ..................1 Points to remember when operating MEGA-POINT ................ 1 General information on MEGA-POINT General information on MEGA-POINT ..................... - Page 3 Contents Operating the machine Switching on the machine - Master switch ..................9 Adjusting the angle ........................10 Setting the point angle A ..................... 10 Adjusting primary cutting angle B1 ..................10 Adjusting secondary clearance angle B2 ................10 Install collets ..........................11 Collets MP 6.5 (1.0 to 6.5 mm dia.) ..................
- Page 4 Contents Cleaning & Maintenance Cleaning & Maintenance ........................ 24 Maintenance Changing the 10x lens ........................25 Focusing the 10x lens ........................25 Mounting and focusing Zoom Lens ....................26 Replacing projection lamp ......................27 Changing the sapphire lens ......................27 Changing viewing screen ......................
-
Page 5: Safety Instructions
Safety instructions Safety instructions General safety instructions This is the symbol for your safety General conditions for use of MEGA-POINT: - MEGA-POINT is only intended for grinding twist drills, 3-lip drills, carbide drills and flat- bottom drills. - The manufacturer is not liable for damage or This symbol marks passages in the manual relating to accidents caused by improper use. -
Page 6: General Information On Mega-Point
General information on MEGA-POINT General information on MEGA-POINT The MEGA-POINT Universal Optical Drill Grinding Machine is designed for the precision grinding of all types of drills. The cutting edge can be precisely aligned and checked for quality after grinding using optical aids. -
Page 7: Delivery, Transportation And Installation
Delivery, transportation and installation Delivery, transportation and installation Delivery Check the delivery consignment using the list below (check that options are identical with the purchase order): Standard with basic machine MEGA-POINT Universal Optical Drill Grinding Machine, comprising: 2 CBN grinding wheels (1 x Ø 125 mm; 1 x Ø 50 mm) 2 Collet chucks for drill Ø... -
Page 8: Installing The Machine
Delivery, transportation and installation Installing the machine In order to work optimal with MEGA-POINT, the following requirements must be met. Space requirements The minimum distances indicated in the drawing must be kept. Location requirements MEGA-POINT on stand (option) The stand must be placed on a level, hard surface. Make sure that the stand has a firm footing and does not wobble. -
Page 9: Connect Flexible Shaft
Delivery, transportation and installation Connect flexible shaft The flexible shaft drives the point-splitting grinding wheel. - Connect end 1 to coupling flange on rear of machine. - Connect end 2 of flexible shaft to coupling piece of point-splitting device. - Relieve load on flexible shaft. Do not connect when twisted. -
Page 10: Dust Extraction
Delivery, transportation and installation Dust extraction The MEGA-POINT can be connected to a central dust extraction system. Connection: 38 mm dia. Dust collector However, the machine is also prepared for connection to a standard industrial vacuum cleaner. A vacuum cleaner can be connected to the machine as follows: - Connect vacuum cleaner power cord to socket at machine rear. -
Page 11: Component Discription
Component discription Component discription The illustrations below and their legends are intended as a reference guide. In this operator’s manual, all the components are labelled in accordance with these legends. If you have any queries, please refer to this section. 1 Master switch 15 Vertical scale 2 Motor switch... -
Page 12: Basic Adjustment For Right-Hand Drills
Startup Startup When it is delivered, the machine contains several transportation adjustments. Before starting up, perform the following basic adjustment. Basic adjustment for right-hand drills Point Angle Loosen clamping lever 14 Turn swivel arm 18 and adjust point angle scale A to 118º Tighten clamping lever 14 Secondary Relief Angle - Loosen locknut 20... -
Page 13: Operating The Machine
Operating the machine Operating the machine Before using the machine, check the following - The condition of the grinding wheel - The condition of the point-splitting grinding wheel - The condition of the grinding wheel cover - The general condition of the machine Check the following machine adjustments - Correct grinding wheel? - Right- or left-hand drill? -
Page 14: Adjusting The Angle
Operating the machine Adjusting the angle In the appendix to this operator’s manual, you will find a table containing the various angles required for various materials. Setting the point angle A - Slacken clamping lever - Turn swivel arm and adjust required value on point angle scale A - Tighten clamping lever Adjusting primary cutting angle B1... -
Page 15: Install Collets
Operating the machine Install collets Collets MP 6.5 (1.0 to 6.5 mm dia.) Collets MP 20 (6.0 - 20.0 mm dia.) - Remove knurled handle 1 - Remove pressure tube 2 - Select desired collet dia. - Insert collet 3 into holder - Insert pressure tube 2 - Screw knurled handle 1 on Swivel arm MP 30 (option) and... -
Page 16: Chucking Drills
Operating the machine Chucking drills Chuck drills as follows: - Insert drill in collet - A length of about 2 times drill dia. must project from collet e.g. drill dia.: 5 mm projecting length: 10 mm - Tighten holder Aligning right-hand drills up to 20 mm dia. -
Page 17: Chucking And Aligning Right-Hand Drills Over 20 Mm Dia. (Mp 30)
Operating the machine Chucking and aligning right-hand drills over 20 mm dia. (MP 30) - Insert drill in collet 1 - Clamp drill using tension nut 2 as follows: - no play - do not clamp drill, allow drill to turn - Turn drill until cutting edge is parallel to viewing screen lines - Lightly press drill against sapphire lens... -
Page 18: Switch On Motor
Operating the machine Switch on motor Wear protective goggles Check that grinding wheel can turn freely Switch on grinding wheel as follows: - Press motor switch 2 Grinding wheel starts to rotate Grinding drills - Grip swivel arm - Using swivel arm, smoothly pass drill inward along grinding wheel - Raise swivel arm to stop - Using swivel arm, smoothly pass drill outwards... -
Page 19: Indexing Cycle
Operating the machine Indexing cycle - Latch swivel arm in center position between grinding wheel and sapphire lens - Abut collet holder against machine - Turn collet holder through 180° (2-lip drills) 120° (3-lip drills) - Allow collet holder to latch Now grind second drill cutting edge Feed - Latch swivel arm 1 in center position between... -
Page 20: Shielding From Bright Outside Light
Operating the machine Shielding from bright outside light To optimize work in bright light conditions, you can place a shield over the viewing screen cover. Universal Optical Drill Grinder Operator's Manual Issue 06/01 Rev 02... -
Page 21: Point Splitting
Operating the machine Point splitting The point splitting grinding wheel is switched on automatically when the swivel arm is moved to the right. Procedure - Adjust the set values C, D, E and F for the required drill according to the setting sheet on page 33 - Grip swivel arm and turn to the right as far as the stop Warning : cutting and grinding wheel is... -
Page 22: Changing Over For Special Drills
Changing over for special drills Changing over for special drills Changing over from right-hand to left-hand drills This section explains how to retool the machine from right-hand to left-hand drills. Changing over machine Only perform work with machine at standstill - Completely screw down stop screws for primary cutting angle and secondary clearance angle - Slacken clamping lever for point angle... -
Page 23: Grinding Left-Hand Drills
Changing over for special drills Grinding left-hand drills This section describes how to grind left-hand drills on the machine. Aligning the cutting edge for left-hand drills Align the cutting edge as for right-hand drills. At the same time, raise the swivel arm against the stop for the primary cutting angle. -
Page 24: Changing Over From Left-Hand To Right-Hand Drills
Changing over for special drills Changing over from left-hand to right-hand drills This section explains how to change over the machine from left-hand to right-hand drills. Changing over machine Only perform work with machine at standstill - Fully screw down stop screw for primary cutting angle and secondary clearance angle - Slacken clamping lever for point angle - Perform the following movements simultaneously:... -
Page 25: Changing Over For 3-Lip Drills
Changing over for special drills Changing over for 3-lip drills Only perform work with machine at standstill - Remove three screws 1 - Remove spigot 2 - Perform following steps at the same time - Look into spigot bore - Turn spigot sleeve 3 - Turn until wide groove appears - Insert spigot 2 marked “3x”... -
Page 26: Changing Over For Flat-Bottom Drills
Changing over for special drills Changing over for flat-bottom drills - Grind drill flat by hand - Adjust point angle to 150 as described in Section Adjusting point angle, page 10 - Adjust primary cutting angle to +10 as described in Section Adjusting primary cutting angle, page 10 - Place stop screw against secondary clearance angle Swivel arm is blocked... -
Page 27: Handling Grinding Wheels
Handling grinding wheels Handling grinding wheels Mounting Diamond and CBN grinding wheels This section describs How to change CBN or Diamond wheels. Only perform work with machine at standstill - Turn dust cover counter clockwise and remove (bayonet mount) - Hold knurled nut at rear of motor shaft - Slacken screw in centre of grinding wheel by 1/2 turn using Allen wrench - Remove grinding wheel... -
Page 28: Cleaning & Maintenance
Cleaning & Maintenance Cleaning & Maintenance The MEGA-POINT is a grinding machine. On grinding machines, grinding dust occurs and can damage moving parts after they have been in use for a long time. For this reason, the machine must be cleaned weekly as described below. - Wipe off grinding dust - Use cleaning naphtha or similar cleaning agent to clean the machine - Remove screws 1... -
Page 29: Maintenance
Maintenance Maintenance Changing the 10x lens Projection lamp is hot. There are two lenses with different magnifications: - 10x (standard) - Zoom lense 6-20 power - Switch off projection lamp - Remove protective cover and sapphire lens bayonet mount - Remove lens holder - Screw in desired lens holder - Mount protective cover and sapphire lens Bayonet mount... -
Page 30: Mounting And Focusing Zoom Lens
Maintenance Mounting and focusing Zoom Lens Projection lamp is hot. The lens has already been focused at the factory for your machine. Re-ordered lenses can be adjusted as followed. Zoom lens to 20 power Touch the drill against the sapphire and check screen When picture is focused, remove protection and sapphire lens, insert a 3mm pin in one of... -
Page 31: Replacing Projection Lamp
Maintenance Replacing projection lamp Projection lamp is hot. - Remove protective hood 1 - Remove projection lamp 2 (hold with two fingers) Never touch the glass body of new projection lamps - Grasp new projection lamps using protective sleeve - Insert lamp in socket - Remove protective sleeve - Mount protective hood Changing the sapphire lens... -
Page 32: Replacing The Fuses
Maintenance Replacing the fuses Replacing the main fuse - Disconnect power plug - Unscrew fuse holder 1 - Remove old fuse - Insert new fuse - Screw fuse holder - Reconnect power plug Replacing fuse for projection lamp - Disconnect power plug - Tilt machine on its rear - Remove base plate - Unscrew fuse holder 1... -
Page 33: Adjusting Cutting Edge Geometry
Maintenance Adjusting cutting edge geometry The machine is adjusted at the factory so that the cutting edge between the primary cutting angle and the secondary clearance angle runs precisely across the tip of the drill (Fig. A). If, after a first grind, this edge does not run as shown in Fig. -
Page 34: Reproducing The Factory Adjustment
Maintenance Reproducing the factory adjustment Before you perform these adjustments, readjust the cutting edge geometry. See section on Adjusting cutting edge geometry on page 29. If there are still defects after this operation, reproduce the factory adjustment. The following applies in general: the grinding wheel and sapphire lens both lie on the base plane B. -
Page 35: Troubleshooting
Troubleshooting Troubleshooting General faults Fault Reason Resolution Chapter, Page No image on viewing Lamp not switched on Press main switch Switching machine on - screen main switch, page 9 Machine not connected Insert power plug Connect, page 6 to power Defective lamp Replace bulb Replacing projection... -
Page 36: Technical Datas
Technical datas Technical datas Drill dia. 1,0 - 20,0 mm / 0.04 - 0.78" 20,0 - 30,0 mm / 0.78 - 1.18" (optional) Angel setting possibilities: Point angle 80° - 145° and flat bottom drills (180°) (80° - 130° for left handed drills) Primary cutting angle 0°... -
Page 37: Setup Values For Different Drills
Setup values for different drills Setup values for different drills setup values (approx.) Drill 4-facet drilltip with point thinning (DIN 1412A) 6-facet drilltip for cast iron (DIN 1412D) 118/90 15 R 4-facet drilltip with point thinning and lip correction 15 R (DIN 1412B) for high carbon steel and hard brass TITEX Plus, Gühring etc. -
Page 38: Wiring Diagram
Wiring diagram Universal Optical Drill Grinder Operator's Manual Issue 06/01 Rev 02...
Need help?
Do you have a question about the MEGA POINT and is the answer not in the manual?
Questions and answers