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PRECESSION ELEPHANT 2 Scan Head 2

Instruction Manual 2021-09-22

6.7.2 Adjusting the focus

Tools

•

Laser safety glasses appropriate to the laser in use

•

Gauge block between 0 mm and 1.5 mm in height to set the distance from the

nozzle to the work piece.

•

Several sheets of metal with a thickness of 0.2 mm as a work piece for drilling

tests

•

Microscope

Requirement

•

The nozzle incl. the protective glass has to be mounted to the scan head.

Procedure

1. Parametrize the laser for processing the work piece with minimal effect, e.g.

with pulse repetition rate between 800 Hz and 1000 Hz and average power as
low as possible.

2. Insert the work piece.
3. Set the distance between the nozzle and the work piece to your desired value

between 0 mm and 1.5 mm.
The optimum distance depends on the work piece geometry and the gas flow
beneath the nozzle.
The factory setting for the distance between nozzle and focus is 1.0 mm. This
equals the Z-position of 0 %.

Содержание Precession Elephant 2

Страница 1: ...Precession Elephant 2 Scan Head User Manual Version 2 Read instructions carefully before use Please keep for future reference...

Страница 2: ...novanta com Internet www novantaphotonics com Service Address Novanta Werk 4 92442 Wackersdorf Germany Phone 49 9431 7984 0 Fax 49 9431 7984 300 E mail photonics novanta com Internet www novantaphoto...

Страница 3: ...8 2 3 Safety instruction 8 2 4 General risks 9 2 4 1 Laser generated air contaminants 9 2 4 2 Laser radiation 10 3 Overview 13 3 1 Function 13 3 2 Controls and signals 14 3 3 Labeling 14 4 Tools neede...

Страница 4: ...ings 56 6 7 7 Adjusting the laser beam to circular polarization 57 6 8 Setting up the optional through the lens vision camera 59 6 8 1 Activating scan field illumination 59 6 8 2 Focusing the camera 6...

Страница 5: ...and weight 85 13 4 Power supply 86 13 5 Cooling water 86 13 6 Gasses and particle extraction 86 13 7 Environmental conditions 88 13 8 Options 89 13 9 Typical process parameters 89 13 10 Electrical and...

Страница 6: ...importance WARNING indicates a hazardous situation with average degree of risk which if not avoided could result in death or serious injury CAUTION indicates a hazardous situation with low degree of r...

Страница 7: ...in the graphical user interface or emphasized text Teletype text to be typed in by the user file name or location in the file system 1 3 Storage and replacement Keep this document with the product to...

Страница 8: ...ive electronic and optical equipment Operating the scan head is only allowed for personnel trained in operating the scan head i e the machine where it is incorporated 2 2 Normal use The scan head is t...

Страница 9: ...piratory tract nervous diseases allergic reactions spasms and cancer Even skin contact can cause in hazardous skin irritations and contact eczema Because of these risks in all laser thermal processes...

Страница 10: ...and must not get in contact with the human skin Exchanged dust filters or exhaust ventilation tubes have to be professionally disposed as hazardous waste if required If the laser processing area with...

Страница 11: ...If alignment or maintenance work on class 4 laser equipment is necessary everyone in the laser area has to wear appropriate protective glasses The glasses have to meet the safety requirements for the...

Страница 12: ...Before opening the beam path take appropriate fire prevention Parametrize the laser for visual set up with average power and pulse repetition rate as low as possible Paper circuit diagrams leaflets or...

Страница 13: ...achining applications It can be used 24 7 in production facilities The PRECESSION ELEPHANT 2 scan head offers maximum flexibility for the drilling of innovative borehole and edge geometries of differi...

Страница 14: ...ally nor there are optical or acoustical signals that could be observed Controls that need to be operated during commissioning of the scan head are described in the respective sections of chapter 6 on...

Страница 15: ...our processing laser according to EN 60825 1 2014 Component for Incorporation This product is intended as a component for incorporation into a laser product and as such requires additional features fo...

Страница 16: ...to make an invisible laser beam visible uEye Cockpit software uEye for viewing the images delivered by the 2 adjustment cameras and the optional through the lens vision camera Gauge block between 0 m...

Страница 17: ...eration Table 3 Environmental conditions for operation Environmental conditions for operation Environment Operate indoors only in a dry and clean environment Degree of protection by enclosure IP41 Amb...

Страница 18: ...the InScript software The installation of the scan head is embedded in this procedure Install a minimal system in the order as described in the procedure below Find further information regarding each...

Страница 19: ...ove the tape from the scan head beam exit see Figure 2 no on page 20 3 Mount the scan head into your system Please find the scan head dimensions in the respective engineering drawing This engineering...

Страница 20: ...PRECESSION ELEPHANT 2 Scan Head 2 Instruction Manual 2021 09 22 Figure 2 Connectors at the scan head PRECESSION ELEPHANT V2 X 20 1 2 3 4 5 6 7 16 8 15 14 9 13 10 11 12 17 18 19 C B A 20...

Страница 21: ...types of steel Connect with tube to cooling water supply see also section 5 5 on page 26 SLAVE LINK XY4 100 This connector is irrelevant for the PRECESSION ELEPHANT scan head as the scan head already...

Страница 22: ...e connecting the power supply to the scan head or disconnecting it from the scan head ensure that no voltage is being applied to the connecting cable DC INPUT This connector is not present at some var...

Страница 23: ...to the beam switch USB 1 USB 2 USB 3 connectors for the built in through the lens vision camera and 2 alignment cameras If USB cameras are built in then connect this to a PC See also uEye Beam entry N...

Страница 24: ...also section 5 6 on page 28 N2 HEAD Purge gas inlet for scan head Purge gas quality pressurized air 2 4 0 according to ISO 8573 1 2010 or nitrogen gas N2 4 0 oil and particle free Inlet pressure max...

Страница 25: ...an head connected to no 20 None Purge gas pressure relief valve see also no 15 None TIP The ASC 2 system controller stands exemplary for other ASC system controllers Only the connectors essentially ne...

Страница 26: ...responding laser adapter manual and the laser manual AC input Connector IEC 60320 C14 Connect by mains cable to mains Grounding Screw M5 Additionally to the grounding through the AC input connector gr...

Страница 27: ...ling nut onto the flexible tube 2 Push the flexible tube onto the plug nipple 3 Tighten the coupling nut How to connect 1 Turn the cooling water flow off 2 Relieve the pressure from the tubing 3 TIP A...

Страница 28: ...Nomenclature 1 2 Table 7 Legend to Figure 5 No Name Quick connector End piece Figure 5 Parts of a gas supplies connector How to install and connect 1 Relieve the pressure from the tubing 2 Press the e...

Страница 29: ...ny personnel present within the restricted area have to wear protective glasses appropriate to the laser in use 6 3 Begin commissioning Requirements The ASC system controller is installed as described...

Страница 30: ...ck if the settings for the cooling water are correct see also section 13 5 on page 86 4 NOTICE Pressure surge could cause damage to scan head s cooling water circuit Secondary damage to electronics an...

Страница 31: ...own TIP The following will be useful when setting up the laser beam later on Open another program instance of the uEye Cockpit software to view the live image of a second camera Scale the live image d...

Страница 32: ...to check settings on the ASC system controller with the secondary effect of learning how to manage devices and how to configure to parametrize and to use them in the InScript software Begin with sect...

Страница 33: ...product according to DIN EN 60825 1 2008 05 P0 100 mW maximum average output power accessible during normal operation with scan head housing closed P0 400 mW maximum average output power accessible d...

Страница 34: ...t present then create configure and activate it as described in document InScript chapter Managing Devices and in document Firmware chapter Devices Sensor AfemLight 4 In the Node Properties view check...

Страница 35: ...r device 2 If the device is not present then create configure and activate it as described in document InScript chapter Managing Devices and in document Firmware chapter Devices Laser your laser OR Co...

Страница 36: ...n Avoid eye or skin exposure to direct or scattered radiation Parametrize the laser for visual set up with average power and pulse repetition rate as low as possible Switch on the laser beam In the No...

Страница 37: ...g by 2 turns but do not remove it yet retainer ring 6 TIPP If you are using this tool from the spare parts list then skip this step In order to loosen the nozzle turn the process gas on connector NOZZ...

Страница 38: ...n exposure to direct or scattered radiation Parametrize the laser for visual set up with average power and pulse repetition rate as low as possible Start the job AlignmentHelp jobx The job rotates the...

Страница 39: ...djust the laser beam by mirrors 1 and 2 TIP Adjust one axis first and then the other 11 Abort the job Procedure Adjusting the laser beam to the scan head s optical axis fine Requirement The previous r...

Страница 40: ...roperties view of node Pens default your laser on the Control tab set Gate control to Always on Condition The laser beam must be centered on both cameras Figure 6 Camera 1 image possibly rotated depen...

Страница 41: ...ecking the quality of previous adjustment Requirement In the InScript software in the Node Properties view of node Pens default your laser on the Control tab the Gate control has to be set to Auto 17...

Страница 42: ...InScript software OR mechanically via the adjustable nozzle at the focusing optics unit TIP Adjust one axis first and then the other InScript software a In the InScript software in the Navigator view...

Страница 43: ...Adjusting the optional attenuator Tools Hexagon socket screw key set Torx key set Power measurement device Procedure 1 If your scan head does not have an attenuator then proceed with the next procedur...

Страница 44: ...ion rate as low as possible Switch on the laser beam In the InScript software in the Node Properties view of node Pens default your laser on the Control tab set Gate control to Always on 5 Maximize th...

Страница 45: ...owing figure until the optical power at the beam exit is maximized c If you increased the optical power to get a significant measurement then decrease the optical power to the previous value d If your...

Страница 46: ...e incl the protective glass has to be mounted to the scan head Procedure 1 Parametrize the laser for processing the work piece with minimal effect e g with pulse repetition rate between 800 Hz and 100...

Страница 47: ...10 m per scale gradation If your distance between nozzle and work piece is less than 1 0 mm e g 0 6 mm then decrease the value on the nonius i e turn the adjusting ring in this direction regarding the...

Страница 48: ...e job The Node Properties view shows the job properties The job moves the Z translator beginning at Z start position for Loop count times in Z delta steps and thus moves the focus With each loop the j...

Страница 49: ...cattered radiation Start the job 8 In the Node Properties view click Continue job 9 Wait until the output is completed 10 Repeat this step until the job is completed Move the work piece In the Node Pr...

Страница 50: ...sting ring 13 Check the quality of the marking at the work piece not OK laser beam tilted to optical axis Coma OK 14 If the above condition is not OK then the laser beam has to be newly adjusted as de...

Страница 51: ...to 10 kHz b Set the laser s average output power as low as possible for processing the work piece with minimal effect c In the InScript software in the Navigator view click Pens default linepar d In...

Страница 52: ...s Galvo offset is set now 7 Proceed with subsection 6 7 4 on page 52 6 7 4 Setting the ON and OFF delay Tools Laser safety glasses appropriate to the laser in use Several sheets of metal with a thick...

Страница 53: ...s at the outline as in the following figure not OK OK 5 If the above condition is OK then proceed with subsection 6 7 5 on page 54 6 If the above condition is not OK then a In the Navigator view click...

Страница 54: ...sible 2 Insert the work piece 3 In InScript in the Navigator view select the controller 4 In InScript in the main menu click Controller Manage scan field correction The Manage Scan Field Correction wi...

Страница 55: ...ral rule this is square II The squares are numbered by marking lines beginning at the most inner square outwards like this 18 On screen in Step 6 type the number of this square in Measure Square 19 Pa...

Страница 56: ...ng of the work piece 2 Insert the work piece 3 CAUTION Visible or invisible laser radiation could cause damage to eye or skin Avoid eye or skin exposure to direct or scattered radiation Drill a hole w...

Страница 57: ...0 folder of the InScript Installation 9 Proceed with subsection 6 8 1 on page 59 6 7 7 Adjusting the laser beam to circular polarization TIP Perform this procedure only when testing the settings as d...

Страница 58: ...zation unit then proceed with the next procedure 2 Loosen the 2 hexagon socket set screws M2 AF 1 5 mm marked by yellow arrows in the next figure just as far as the 2 levers marked by red arrows can b...

Страница 59: ...s with each repetition of the steps 6 Measure the polarization with the Glan Thompson polarization meter 7 If the laser beam is not circularly polarized then repeat this procedure from step 5 on page...

Страница 60: ...amera then proceed with section 6 9 on page 62 2 In document Firmware look up how the Vcsel device is configured and used 3 View the image delivered by the through the lens vision camera with the uEye...

Страница 61: ...ivered by optional through the lens vision camera Requirement The scan field illumination is set appropriately see subsection 6 8 1 on page 59 Procedure 1 Remove the scan head s side panel see also th...

Страница 62: ...of focus on object Figure 9 Vision camera focused on object 4 Tighten the Torx screw again 5 Proceed with section 6 9 on page 62 6 9 Complete commissioning Tools Torx key set Procedure 1 In the InScr...

Страница 63: ...handled manually nor there are optical or acoustical signals that could be observed The scan head is controlled by the InScript software and signaling is done via the InScript software Read the InScr...

Страница 64: ...llaneous Shutter Vcsel 7 4 External control devices that are not described here The through the lens vision camera is controlled by the uEye Cockpit software Please refer to the uEye Cockpit software...

Страница 65: ...articular the laser the scan head itself and eventually present translation stages 8 3 Maintenance plan As the intervals strongly depend on the optics contamination we kindly ask you to determine the...

Страница 66: ...tch the optical surface c Carefully remove these 4 Torx screws The square plate comes off including the protective window The protective window is held in place by a retainer ring 3 Use the optics spa...

Страница 67: ...dow is contaminated or damaged Tools Optics spanner wrench or alternatively this tool from the spare parts list Pair of cotton gloves Lens cleaning paper Procedure 1 Cover the place where the optics s...

Страница 68: ...st then skip this step In order to loosen the nozzle turn the process gas on connector NOZZLE max pressure 4 bar just until the nozzle come loose and turn the process gas off again 4 Remove the retain...

Страница 69: ...e Wear cotton gloves Do not touch or scratch the optical surface Use the optics spanner wrench or the following tool to remove the retainer ring 6 Replace or carefully clean the protective window see...

Страница 70: ...d cleansing agents are highly flammable Fire hazard Avoid contact with ignition source CAUTION Listed cleansing agents are irritant to skin eyes and respiratory system Do not breath in vapor and avoid...

Страница 71: ...in place 3 Slowly and with constant speed pull the lens cleaning paper to the side The tear off edge of the paper must be nearly dry 4 Continue with procedure checking if the optics is clean 5 If the...

Страница 72: ...e focusing unit Requirement The focusing unit is damaged Tools Torx key set Procedure 1 Switch or turn off a Electrical power b Process gas and purge gas supplies c Cooling water supply 2 Disconnect a...

Страница 73: ...ooling fins so the focusing unit points upwards 6 Unplug the gas lines which are connecting the focusing unit to the scan head directly at the focusing see also section 5 6 on page 28 7 Unscrew the 4...

Страница 74: ...on Part number Protective glass for the beam entrance wavelength 515 nm 111 1007556 00 Protective glass for the beam entrance wavelength 1020 1080 nm 111 1007557 00 Lens for ratio 1 3 Z translator wav...

Страница 75: ...ne 162 1111886 00 wavelength 515 nm focal length 60 mm Complete focusing optics unit wavelength 515 nm 162 1109702 00 focal length 120 mm Complete focusing optics unit wavelength 1020 1080 nm 162 1105...

Страница 76: ...1106688 00 No image available O ring set for gas nozzle 313 2001439 00 No image available Gas nozzle with centering cone 1 mm exit diameter O ring set for gas nozzle with centering cone 211 1112727 0...

Страница 77: ...t up tool for adjusting the laser beam to the optical axis of the scan head diaphragm for beam entry 216 1107955 01 Set up tool for getting the laser beam through TPU and Scanner aperture with 1 5 mm...

Страница 78: ...ot plugging the power supply destroy the scan head electronics Before connecting the power supply to the scan head or disconnecting it from the scan head ensure that no voltage is being applied to the...

Страница 79: ...focusing optics NEVER lift scan heads at the focusing optics Remove the scan head from the machine Due to the weight we recommend 2 persons for handling 4 Fix the transportation lock plate back to th...

Страница 80: ...for transporting and storing Cardboard box dimensions 660 550 350 mm volume 0 13 m weight incl scan head and accessories 23 kg handling 2 persons recommended Ambient transport and storage temperature...

Страница 81: ...ER lift scan heads at the focusing optics 1 For packing use the packaging delivered together with the scan head 2 Wrap the scan head into the ESD plastic bag and seal the bag with tape 3 Place the sca...

Страница 82: ...T 2 Scan Head 2 Instruction Manual 2021 09 22 5 Put the package into the cardboard box 6 Put the rectangular cardboard on top 7 Put accessories on top of the cardboard 8 Close the cardboard box and se...

Страница 83: ...equipment By ensuring this product is disposed correctly you will help prevent potential negative consequences for the environment and human health which could otherwise be caused by inappropriate wa...

Страница 84: ...1020 to 1080 nm near infrared or 1500 to 2100 nm infrared laser pulse energy 300 J average optical power 100 W irradiation rate for internal shutter max 2 W The internal shutter is not applicable as a...

Страница 85: ...adjustment of hole diameter 0 015 m 13 2 Cameras Table 13 Cameras Cameras Vision camera 1280 1024 pixel pixel size 4 65 m Adjustment cameras 1280 1024 pixel pixel size 5 2 m 13 3 Dimensions possibilit...

Страница 86: ...o 2 2 l min Inlet temperature max 30 C 303 K Recommend tubing material polyetherurethane D 6 mm d 4 mm Specifics The cooling unit is DI water proofed with corrosion resistant types of steel 13 6 Gasse...

Страница 87: ...5 kPa Volume flow typ 2 l min Recommend tubing material polyetherurethane D 4 mm d 2 5 mm or D 4 mm d 2 mm Specifics Internal restrictor limits pressure to 1 bar 100 kPa Internal pressure relief valve...

Страница 88: ...5 kPa This approximately corresponds to 3 500 m a s l Hence the system is suitable for standard air freight Allowed vibration and shock to be defined Table 22 Environmental conditions for operation En...

Страница 89: ...Energy monitor for long time process stability Optical beam attenuator Confocal detector Plasma emission sensor Single pulse energy measurement sensor Beam position and profile monitor Set up options...

Страница 90: ...an ASC NCC or equivalent controller is connected to the DATA I O interface then a further slave scan head can be connected to the XY4 100 SLAVE LINK interface In this case the slave scan head will be...

Страница 91: ...y configured as POSY IO O 9 U VO 22 U VO 10 NC 23 GND 11 GND 24 GND 12 NC 25 U VO 13 U VO S NC Signal name CLK clock according to RS 422 SYNC synchronization according to RS 422 CHX nominal X axis pos...

Страница 92: ...O See also Figure 2 no on page 20 Purpose The scan head communicates with an ASC or equivalent controller via the DATA I O interface The scan head is connected to the controller via an Ethernet CAT5 c...

Страница 93: ...ransmit data RXD receive data TXC transmit clock RXC receive clock Signal type I Input O Output Internal circuit diagram excerpt Not available Installation examples If you want to control a scan head...

Страница 94: ...rate Sub frames Update rate per channel 6 144 Mb s 192000 s 48 kHz factory setting 12 288 Mb s 384000 s 96 kHz optional for IDB416 30 or higher The clock frequency is twice the bit rate In a Biphasic...

Страница 95: ...0111 tags a sub frame which contains data for the X channel and which stands at the beginning of a data block at the same time M 11100010 00011101 tags a sub frame which contains data for the X channe...

Страница 96: ...0 is the center position Bit 4 is the most significant bit MSB bit 23 is the least significant bit LSB 24 26 bits set to 0 27 bit set to 1 28 V Validity If this bit is set then the pattern should not...

Страница 97: ...gure 2 no on page 20 Purpose This connector is for service purposes only Do not connect Further reading None Implementation Connector name DC INPUT Connector type male 9 pin D Sub connector Signal nam...

Страница 98: ...3 D sub connector 3F3CS keyed Maximum wire length depending on cable cross section standard lengths 5 m and 10 m or customer specific Characteristics none Table 26 Pin assignment of the DC INPUT conne...

Страница 99: ...no on page 20 Purpose This connector is optional If you wish to measure the energy of single laser pulses then connect it with a BNC cable to trigger signal output of laser Further reading None Implem...

Страница 100: ...able 13 10 6 BEAM SWITCH See also Figure 2 no on page 20 Purpose An optional external device can be connected here that can switch the beam path between 2 scan heads Further reading See section 13 10...

Страница 101: ...eras are USB cameras then this connects them to the PC where the uEye Cockpit camera software is running Further reading uEye Implementation Connector name USB 1 USB 2 USB 3 Connector type female Mini...

Страница 102: ...to the PC where the uEye Cockpit camera software is running Further reading uEye Implementation Connector name ETHERNET Connector type female RJ45 connector Maximum wire length 25 m Characteristics no...

Страница 103: ...contains amongst others information on supported devices and job nodes InScript InScript 3 User Manual file InScript_ version _manual_en pdf and see the tip below for how to access the manual The use...

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