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OPTIMUM

M A S C H I N E N - G E R M A N Y



201

2

Operation

Version 1.0.1 dated 30 / 08 / 2012

Page 29

Original operating instructions

MH28V

GB

4.8

Selecting the speed

For milling operations, the essential factor is the selection of the correct speed. The speed
determines the cutting speed of the cutting edges which cut the material. By selecting the
correct cutting speed, the service life of the tool is increased and the working result is opti-
mised.

The optimum cutting speed mainly depends on the material and on the material of the tool.
With tools (milling cutters) made of hard metal or ceramic insert it is possible to work at
higher speeds than with tools made of high-alloyed high-speed steel (HSS). You will achieve
the correct cutting speed by selecting the correct speed.

In order to determine the correct cutting speed for your tool and for the material to be cut,
you may refer to the following standard values or a table reference book (e.g. Tabellenbuch
Metall, Europa Lehrmittel, ISBN 3808517220).
The required speed is calculated as follows:

n = speed in min

-1

(revolutions per minute)

V = cutting speed in m/min (meters per minute)

d = tool diameter in m (meters)

4.8.1 Standards values for cutting speeds

[ m/min ] with high-speed steel and hard metal at conventional milling

The results are the following standard values for speeds depending on the milling cutter
diameter, cutter type and material.

n

V



d



------------

=

Tool

Steel

Grey cast iron

Age-

hardened

Al alloy

Peripheral and side milling cutters

[ m/min ]

10 - 25

10 - 22

150 - 350

Relieved form cutters [ m/min ]

15 - 24

10 - 20

150 - 250

Inserted tooth cutter with SS [ m/min ]

15 - 30

12 - 25

200 - 300

inserted tooth cutter with HM [ m/min ]

100 - 200

30 - 100

300 - 400

Tool diameter

[ mm ] peripheral and side milling

cutters

Steel

10 - 25 m/min

Grey cast iron

10 - 22 m/min

Age-

hardened

Al alloy 150 -

350

m/min

Speed [

min

-1

]

35

91 - 227

91 - 200

1365 - 3185

40

80 - 199

80 - 175

1195 - 2790

45

71 - 177

71 - 156

1062 - 2470

50

64 - 159

64 - 140

955 - 2230

55

58 - 145

58 - 127

870 - 2027

60

53 - 133

53 - 117

795 - 1860

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Содержание OPTIMILL MH 28V

Страница 1: ...OPTIMUM M A S C H I N E N G E R M A N Y GB Operating instructions Version 1 0 1 ...

Страница 2: ...ur machine Being the manufacturer we are continuously seeking for improvements and renewal of the products Therefore changes might be performed without prior notice The illustrations of the drilling milling machine may be different from the illustrations in these instructions with regard to a few details However this does not have any influence on the operability of the drilling milling machine Th...

Страница 3: ...17 2 10 Environmental conditions 17 2 11 Operating material 17 3 Unpacking and connecting 3 1 Extent of supply 19 3 2 Transport 19 3 3 Storage 20 3 4 Installation and assembly 21 3 4 1 Site requirements 21 3 4 2 Load suspension point 21 3 4 3 Installation 21 3 5 First use 22 3 5 1 Power supply 22 3 5 2 Cleaning and lubricating 22 3 5 3 Warming up the machine 23 4 Operation 4 1 Safety 24 4 2 Contro...

Страница 4: ...kopf 1 von 2 Milling head 1 of 2 44 6 5 Fräskopf 2 von 2 Milling head 2 of 2 45 6 6 Bedienkonsole Schutzeinrichtung Operation panel protection device 46 6 7 Schaltplan Wiring diagram 47 6 7 1 Ersatzteilliste Spare part list 48 7 Malfunctions 7 1 Malfunctions on the drilling milling machine 53 8 Appendix 8 1 Copyright 54 8 2 Terminology Glossary 54 8 3 Liability claims for defects warranty 55 8 4 N...

Страница 5: ...informs you on how to prevent dangers In addition to this operating manual please observe applicable laws and regulations legal regulations for accident prevention the prohibition warning and mandatory signs as well as the warning notes on the drill ing milling machine Always keep this documentation close to the drilling milling machine INFORMATION If you are unable to solve a problem using this m...

Страница 6: ...t will cause serious injury or death to per sons WARNING Risk a danger that might cause serious injury or death to per sons CAUTION Danger or unsafe procedure that might cause injury to persons or damage to property ATTENTION Situation that could cause damage to the drilling milling machine and to the product and other types of damage No risk of injury to persons INFORMATION Application tips and o...

Страница 7: ... in any way other than described above modified with out the authorisation of the company Optimum Maschinen Germany GmbH or operated with different process data then the drilling milling machine is being used improperly We do not take any liability for damages caused by improper use We would like to stress that any modifications to the construction or technical or technologi cal modifications that...

Страница 8: ...suse Any other use or any use beyond the use described under Proper use is regarded as improper use and is forbidden If it is intended to use the device in any other way as described above it is necessary to con sult the manufacturer It is only allowed to work metallic cold and non flammable material using the milling machine In order to avoid misuse it is necessary to read and understand the oper...

Страница 9: ...huck in no case Use a collet chuck and the corresponding collets for the end mill When milling make sure that The suitable cutting speed is selected For materials with normal mechanical strength e g steel 18 22 m min For materials with higher mechanical strength 10 14 m min The press on is selected in a way that the cutting speed remains constant commercial cooling lubricating agents are used for ...

Страница 10: ...improper behaviour Any tasks which need to be performed beyond the oper ation in the standard mode must only be performed by the operator if it is indicated in these instructions and if the operating company expressively commissioned the operator Electrical specialist Due to his professional training knowledge and experience as well as his knowledge of respective standards and regulations the elec...

Страница 11: ...es e g spirit 1 8 Safety devices Use the drilling milling machine only with properly functioning safety devices Stop the drilling milling machine immediately if there is a failure in the safety device or if it is not functioning for any reason It is your responsibility If a safety device has been activated or has failed the drilling milling machine must only be used when the cause of the failure h...

Страница 12: ...ieces After actuating the button turn it to the right in order to restart the machine 1 8 2 Protective cover The drill mill head is fitted with a protec tive cover WARNING Remove the protective cover only after the mains plug has been pulled out of the socket Fig 1 2 Protective cover 1 8 3 Separating protective equipment Adjust the protective equipment to the correct height before you start workin...

Страница 13: ...r transport heavy components Use ear protection if the noise level immission in the workplace exceeds 80 dB A Before starting work make sure that the prescribed individual protection gear is available at the workplace CAUTION Dirty or contaminated personnel protective equipment can cause disease Clean it each time after it has been used and once a week General check Equipment Check OK Protective c...

Страница 14: ...n necessary a hairnet Do not use protective gloves during drilling or milling work Unplug the shockproof plug from the mains before changing the tool Use suitable devices for removing drilling and milling chips Make sure your work does not endanger anyone Clamp the workpiece tightly before activating the drilling milling machine In the description of work with and on the drilling milling machine w...

Страница 15: ...gency Stop function it is no longer possible to actuate the axis by means of the electromotor in order to rescue the squeezed person In this case it is necessary to release the machine manually This releasing of the X axis and of the Y axis is performed using an appropriate tool e g a flat wrench which is inserted on the hexagon nut at the shaft end which is opposite to the drive It is only possib...

Страница 16: ... 5 V 0 4 2 e n i g n E 2 3 Drilling milling capacity Drilling capacity mm Ø max 28 Milling capacity of end mill cutter mm Ø max 28 Milling capacity of inserted tooth cutter mm Ø max 70 2 4 Spindle holding fixture 2 1 M 3 K M e r u t x i f g n i d l o h e l d n i p S m m 0 7 m m l e v a r t e v e e l S 2 5 Drill mill head 0 9 g n i l l e v i w S 2 s e g a t s n o i t c u d e R 0 8 3 m m l e v a r t...

Страница 17: ...g level Unless the degree of noise emission and the degree of noise disturbance are depending on one another it is not possible to use it in order to reliably determine if it is necessary to take further preventive measures or not The following factors influence the actual degree of the noise disturbance of the operator Characteristics of the working chamber e g size or damping behavior Other nois...

Страница 18: ...nformation regarding the noise emission should allow the operator of the machine to perform a better evaluation of the endangerments and risks CAUTION The machine operator has to wear an appropriate ear protection depending on the overall stress caused by noise and on the basic limit values We generally recommend using a sound and ear protection ...

Страница 19: ...her transport vehicles could cause very serious or even fatal injuries Follow the instructions and information on the transport case WARNING Use of unstable lifting equipment and load suspension devices that break under load can cause very serious injury or even death Check that the lifting and load suspension gear has sufficient load capacity and that it is in perfect condition Observe the rules ...

Страница 20: ...ransportation box Consult Optimum Maschinen Germany GmbH if the drilling milling machine and accessories have to be stored for a period of over three months or under different external conditions than those given here Information on page 5 Fragile goods goods require careful handling Protect against humidity and humid environments Environmental conditions on page 17 Prescribed position of the pack...

Страница 21: ... by the customer if necessary in order to avoid dangers for persons Provide sufficient space for assembly and operating staff as well as for material transport Also allow for accessibility for setting and maintenance works Make sure that the mains plug of the turning machine is freely accessible Provide for sufficient illumination minimum value 500 lux measured at the tool tip In case of little in...

Страница 22: ... recommend using a sound and ear protection on page 18 We generally recommend using a sound and ear protection on page 18 We generally recommend using a sound and ear protection on page 18 3 5 First use ATTENTION Before you begin with the commissioning on the machines check that all screws fas teners and fuses are tight If necessary they must be tightened WARNING Risk by using improper workpiece c...

Страница 23: ...drilling milling machine using the lubrication chart Inspection and maintenance on page 35 Check the smooth running of all spindles The spindle nuts can be readjusted Disassembly the taper gibs of the cross table and clean the gibs from the anti corrosive agent Taper gibs on page 36 3 5 3 Warming up the machine ATTENTION If the drilling milling machine and in particular the milling spindle is imme...

Страница 24: ...functions should be eliminated immediately Stop the drilling milling machine immedi ately in the event of any abnormality in operation and make sure it cannot be started up acci dentally or without authorisation For your own safety during operation on page 14 4 2 Control and indicating elements Fig 4 1 MH28V Crank for height adjust ment of the drill mill head Selector switch for reduction stage St...

Страница 25: ...ontrol panel back Selector switch for reduction stage Fine crossfeed of spindle sleeve Digital display fine crossfeed of spindle sleeve Clamping screw of spindle sleeve Digital display speed EMERGENCY STOP Potentiometer for speed regulation Hand actuated auxiliary switch Start Change over switch Machine illumination Hand actuated auxiliary switch Stop Control 230V voltage supply Fuse Main switch ...

Страница 26: ...ctronics controls the speed slowly to the target value with a ramp Therefore please wait a while before you continue milling or drilling with the feed Reduction stage Selection rotary type switch to select the reduction stage CAUTION Wait until the drilling milling machine has come to a complete halt before performing any changes on the gear switch Turn the gear switch to the position H for a spee...

Страница 27: ...e spindle thrust bearing with a wrench and loosen the draw in rod Turn the draw in rod further so that the tool is squeezed out from the cone admission ATTENTION When installing a cold morse taper into a heated up machine those MT seats tend to shrink on the morse taper contrary to the quick releaser tapers 4 5 3 Use of collet chucks When using collet chucks to hold milling tools a higher operatio...

Страница 28: ...other appropriate clamping tools such as clamping claws 4 7 Changing the speed range ATTENTION Wait until the drilling milling machine has come to a complete halt before changing the speed using the gear switch Select reduction stage H rapid L low Adjust the speed with the potenti ometer The speed and thus the cutting speed are depending on the material of the workpiece the mill ing cutter diamete...

Страница 29: ... following standard values or a table reference book e g Tabellenbuch Metall Europa Lehrmittel ISBN 3808517220 The required speed is calculated as follows n speed in min 1 revolutions per minute V cutting speed in m min meters per minute d tool diameter in m meters 4 8 1 Standards values for cutting speeds m min with high speed steel and hard metal at conventional milling The results are the follo...

Страница 30: ...ool diameter mm form cutters Steel 15 24 m min Grey cast iron 10 20 m min Age hardened Al alloy 150 250 m min Speed min 1 4 1194 1911 796 1592 11900 19000 5 955 1529 637 1274 9550 15900 6 796 1274 531 1062 7900 13200 8 597 955 398 796 5900 9900 10 478 764 318 637 4700 7900 12 398 637 265 531 3900 6600 14 341 546 227 455 3400 5600 16 299 478 199 398 2900 4900 Material Cutter diameter Cooling 3 2 3 ...

Страница 31: ...ts and cooling agents Follow the manufacturer s instructions for dis posal 4 9 Manual spindle sleeve feed with the fine feed Turn the handle screw The spindle sleeve lever will move towards the drill mill head and will activate the clutch of the fine feed Turn the spindle sleeve fine feed in order to move the spindle sleeve Fig 4 7 Fine feed 4 10 Digital display for spindle sleeve travel 4 10 1 Te...

Страница 32: ... batteries Grip the new batteries only with plastic forceps if possible not with the hand due to the forma tion of oxide and never with metal forceps in order to avoid a short circuit In most cases the round cell will be inserted into the digital display with the marking upside After inserting the round cell the battery compartment has to be closed again 4 10 3 Malfunctions LCD display Shifting mm...

Страница 33: ...utch Loosen the handle screw Fine feed on page 31 The spindle sleeve lever moves away from the drill mill head and disengages the clutch of the fine feed 4 12 Swivelling the drill mill head The drill mill head may be swivelled to the right and to the left Two screw ings need to be loosened Fig 4 9 Clamping screws CAUTION If the screws are completely unfastened the milling head might fall down When...

Страница 34: ...e operation fault free operation long service life of the drilling milling machine and the quality of the products you manufacture Installations and equipment of other manufacturer s must also be in optimum condition 5 1 Safety WARNING The consequences of incorrect maintenance and repair work may include very serious injury to staff working on the drilling milling machine damage to the drilling mi...

Страница 35: ...ce con ditions For this reason all the intervals are only valid for the authorised conditions Interval Where What How Start of work after each maintenance or repair oper ation Drilling Milling machine Safety check on page 13 Start of work after each maintenance or repair oper ation Dovetail slideways Lubricate Lubricate all slideways Weekly Cross table Lubricate Lubricate all blank steel parts Use...

Страница 36: ...ockwise direction The taper gib is continued to push in and reduced by it the gap in the guideway Control your setting The respective guideway must be still easily mobile from the adjustment result in however a stable guidance As required Taper gib Readjust Z axis Fig 5 3 Mill head Proceed as described under Readjust X and Y axis Interval Where What How Cross table Adjusting screw taper gib X axis...

Страница 37: ...ittle to the right This way you can easily remove the lamp cover in order to allow replacing of the halogen lamp Plug a small screw driver into the recess between the lamp holder and the lamp cover By slightly turning the screw driver you can remove the lamp cover Pull the halogen pin base lamp with a cloth and replace the halogen lamp Type Halogen pin base lamp Osram 12V 10W base G4 Interval Wher...

Страница 38: ...the drill mill head on page 33 completely by 90 to the right Check if the clamping screws are firmly tightened as described under Swivelling the drill mill head on page 33 and that the drill mill head can not independ ently tilt Disassemble the cover plate at the rear Grease the toothed wheels Operating material on page 17 Fig 5 5 Rear Every six months Spindle and spindle nut Z axis Greasing Open ...

Страница 39: ...e drilling milling machine If the repairs are carried out by qualified technical staff they have to follow the indications given in this manual The company Optimum Maschinen Germany GmbH does not take responsibility nor does it guarantee against damage and operating anomalies resulting from failure to observe this operating manual For repairs only use faultless and suitable tools original spare pa...

Страница 40: ... potentiometer in direction plus For thread cutting we recommend little torque Slope This is the potentiometer to set the acceleration time of the motor at the moment when it starts turning If you require a smoother ramp turn the potentiometer in direction plus In order to achieve a steeper ramp turn the potentiometer in direction minus CL This is the potentiometer to set the current limiting as a...

Страница 41: ...betriebsanleitung MH 28 V D 6 Ersatzteile Spare parts 6 1 Kreuztisch Cross table Abb 6 1 Kreuztisch Cross table F F F 55 54 64 57 2 57 1 58 38 50 51 59 60 52 60 44 67 81 66 65 56 63 62 61 50 51 60 59 38 58 16 73 80 57 1 57 2 16 72 14 15 78 14 44 81 67 71 75 44 60 74 51 60 59 38 58 57 1 57 2 76 68 70 69 83 16 80 40 40 80 40 ...

Страница 42: ...M A S C H I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 42 Originalbetriebsanleitung MH 28 V D 6 2 Säule 1 von 2 Column 1 of 2 Abb 6 2 Säule 1 von 2 Column 1 of 2 ...

Страница 43: ...M A S C H I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 43 Originalbetriebsanleitung MH 28 V D 6 3 Säule 2 von 2 Column 2 of 2 Abb 6 3 Säule 2 von 2 Column 2 of 2 ...

Страница 44: ... I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 44 Originalbetriebsanleitung MH 28 V D 6 4 Fräskopf 1 von 2 Milling head 1 of 2 Abb 6 4 Fräskopf 1 von 2 Milling head 1 of 2 ...

Страница 45: ... I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 45 Originalbetriebsanleitung MH 28 V D 6 5 Fräskopf 2 von 2 Milling head 2 of 2 Abb 6 5 Fräskopf 2 von 2 Milling head 2 of 2 ...

Страница 46: ...2 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 46 Originalbetriebsanleitung MH 28 V D 6 6 Bedienkonsole Schutzeinrichtung Operation panel protection device Abb 6 6 Panel und Schutzeinrichtung Operation panel and protection device ...

Страница 47: ...M M A S C H I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 47 Originalbetriebsanleitung MH 28 V D 6 7 Schaltplan Wiring diagram Abb 6 7 Schaltplan Wiring diagram ...

Страница 48: ...ckkappe Nut collar 1 0333813032 33 Innensechskantschraube Hexagon head cap screw 4 34 Abdeckplatte Säule Column cover 1 0320218 35 Lagerabdeckung Bearing cover 1 0333813035 37 Skalenring Z Achse Lift dial z axis 1 0333813037 38 Federstück Spring piece 4 0333813038 39 Handrad Z Achse Handwheel z axis 1 0333813039 40 Sechskantmutter Hexagon nut 4 41 Griff komplett Handle complete 1 0333813041 41 1 G...

Страница 49: ... 03338130117 119 Verschlußstück Endplate 1 03338130119 126 Schutzeinrichtung komplett Protection device complete 1 03338130126 126 1 Gehäuse Housing 1 03338130126 1 126 2 Aluminium Profilaufnahme Aluminium profile admission 1 03338130126 2 126 3 Klemmschraube Clamping scew 1 03338130126 3 126 4 Aluminiumprofil Aluminium profile 1 03338130126 4 126 5 Schutz Protection 1 03338130126 5 126 6 Schraube...

Страница 50: ...kopf Housing milling head 1 03338130239 239 Abdeckung Cover 1 240 Senkschraube mit Kreuzschlitz Countersunk screw 6 241 Drehknopf Feinzustellung Micro feed knob 1 03338130241 242 Innensechskant Gewindestift mit Spitze Hexagon head cap thread pin screw with point 1 243 Federstück Spring piece 1 03338130243 244 Skalenring Feinzustellung Micro feed dial 1 03338130244 245 Schneckenwelle Worm shaft 1 0...

Страница 51: ... 1 0403203 293 Abdeckplatte Säule Column cover 1 03338130293 294 Schrägkugellager zweireihig Skew angle roller bearing double row 2 0403200 295 Lagerbock Saddle dial support 1 03338130295 296 Sensorring Sensor ring 1 03338130296 299 Distanzhülse Distance case 1 03338130299 300 Start Stop Verbindung für CNC Con roller Start Stop connection for CNC cont roller 1 03338130300 301 Drehknopf Knob 1 0333...

Страница 52: ...OPTIMUM M A S C H I N E N G E R M A N Y 30 8 12 Ersatzteile Spare parts Version 1 0 1 vom 30 August 2012 Seite 52 Originalbetriebsanleitung MH 28 V D ...

Страница 53: ...free of grease Taper cannot be squeezed out Optional MT3 taper seat shrinked on morse cone Have the machine heat up at highest speed for about two minu tes and then try again to disas semble the taper Motor does not start Defective fuse Have it checked by authorised staff Working spindle rattling on rough workpiece surface Climb milling machining not pos sible under the current operating condition...

Страница 54: ...kpiece with X and Y direction Taper mandrel Taper of the tool holding taper of the bit or the drill chuck Workpiece Piece to be milled drilled or machined Draw in rod Threaded bar for fastening the taper mandrel in the spindle sleeve Drill chuck Device for holding the bit Collet chuck Holding fixture for end mill cutters Drill mill head Upper part of the drilling milling machine Spindle sleeve Hol...

Страница 55: ...aulty operations or if the operating man ual is disregarded Inattentive or incorrect handling and use of improper equipment Non authorized modifications and repairs Insufficient installation and safeguarding of the machine Disregarding the installation requirements and conditions of use Atmospheric discharges overvoltage and lightning strokes as well as chemical influ ences The following items are...

Страница 56: ...irect reuse 8 4 3 Disposing of the old device INFORMATION Please make sure in your own interest and in the interest of the environment that all compo nent parts of the machine will be disposed of in the provided and admitted ways Please note that the electrical devices include lots of reusable materials as well as environ mentally hazardous components Account for separate and professional disposal...

Страница 57: ...lectric and electronic machines Applicable in the countries of the European Union and other European countries with a sep arate collecting system for those devices The sign on the product or on its packing indicates that the product must not be handles as common household waist but that is needs to be delivered to a central collection point for recycling Your contribution to the correct disposal o...

Страница 58: ...follow up service for our products which extends beyond ship ment We would be grateful if you could send us the following information Modified settings Experiences with the drilling milling machine which could be important to other users Recurring failures Optimum Maschinen Germany GmbH Dr Robert Pfleger Str 26 D 96103 Hallstadt Fax 49 0 951 96 555 888 E Mail info optimum maschinen de ...

Страница 59: ...netic compatibility 2004 108 EC The following harmonized standards were applied DIN EN 12100 1 2003 A1 2009 Safety of machinery Basic concepts general principles for design Part 1 Basic terminology methodology DIN EN 12100 2 2003 A1 2009 Safety of machinery Basic concepts general principles for design Part 2 Technical principles DIN EN 60204 1 Safety of machinery Electrical equipment of machines G...

Страница 60: ...e sleeve feed 31 O Operation 24 Optional accessory 23 P Power supply 16 22 Product follow up 58 Proper use 7 Protective cover 12 Q Qualification of personnel Safety 10 R Reasonably foreseeable misuse 8 Repair 34 S Safety check 13 Safety devices 11 Safety during operation 14 Safety warnings 6 Securing the drilling milling machine 14 Selecting the speed 29 Setting instructions control 40 Speeds 17 S...

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