Kistler MiniDyn 9119AA2 Instruction Manual
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Kistler MiniDyn 9119AA2 Instruction Manual

Multicomponent dynamometer
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Instruction
Manual
MiniDyn
Multicomponent
Dynamometer
Type 9119AA2
9119AA2_002-623e-04.18

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Summary of Contents for Kistler MiniDyn 9119AA2

  • Page 1 Instruction Manual MiniDyn Multicomponent Dynamometer Type 9119AA2 9119AA2_002-623e-04.18...
  • Page 2 Instruction Manual MiniDyn Multicomponent Dynamometer Type 9119AA2 9119AA2_002-623e-04.18...
  • Page 4 Information in this document is subject to change without notice. Kistler reserves the right to change or improve its products and make changes in the content without obligation to notify any person or organization of such changes or improvements.

  • Page 5: Table Of Contents

    MiniDyn Multicomponent Dynamometer Type 9119AA2 Content Introduction ........................... 4     Important information ........................5     For your safety ........................5     Hints for handling this device ....................6     Tips on using the instruction manual ..................7  ...
  • Page 6 Content MiniDyn Type 9119AA2, general setup (without machine and tool adapters) ....45     MiniDyn Type 9119AA2, setup for force measurement when turning (with machine and   tool adapters) ........................46   Maximum measuring ranges ....................47     Dimensions .........................

  • Page 7: Introduction

    It will help you with the installation, maintenance, and use of this product. To the extent permitted by law Kistler does not accept any liability if this instruction manual is not followed or products other than those listed under Accessories used.

  • Page 8: Important Information

    Important information 2. Important information It is essential to follow the instructions below for your own personal safety when working and to ensure long-lasting, trouble-free operation of the device. 2.1 For your safety  This device has been thoroughly tested and was perfectly safe when it left the factory.

  • Page 9: Hints For Handling This Device

    MiniDyn Multicomponent Dynamometer, Type 9119AA2 2.2 Hints for handling this device  You must only work with the dynamometer in spe- cified environmental and operating conditions.  Insulation resistance crucial piezoelectric measurements; it must be about 100 TΩ (but at least 10 TΩ) ...

  • Page 10: Tips On Using The Instruction Manual

    We always recommend that you read the entire Instruction Manual. But if you are in a hurry and are already familiar with Kistler dynamometers, you only have to read the particular information you need. We have tried to design this manual to make it easy for you to directly access the information you are looking for.

  • Page 11: General Device Description

    MiniDyn Multicomponent Dynamometer, Type 9119AA2 3. General device description 3.1 What is a Multicomponent Dynamometer used for? The multicomponent dynamometer is used for dynamic and quasistatic measurement of the 3 orthogonal components of any force acting on the cover plate (F and F The dynamometer is extremely rigid and therefore has a high natural frequency.

  • Page 12: Functional Principle

    General device description 3.2 Functional principle The force to be measured is applied via a cover plate and distributed to four, 3-component force sensors arranged between the cover plate and the two base plates. Each force sensor contains three quartz crystal plate pairs, of which one is sensitive to pressure in the z direction and the other two are sensitive to shear in the x and y directions.

  • Page 13: Dynamometer Construction

    MiniDyn Multicomponent Dynamometer, Type 9119AA2 3.3 Dynamometer construction The dynamometer consists of four 3-component force sensors, mounted under high preload between two base plates and one cover plate. This preload is the requirement for friction force transmission. 1 Base plates 2 Cover plate 3 Connector The four force sensors are installed ground-isolated.

  • Page 14: Mounting, Installation And Initial Startup

    Mounting, installation and initial startup 4. Mounting, installation and initial startup 4.1 Important information The Type 9119AA2 multicomponent dynamometer is a precision instrument, with inherent accuracy that will only remain useful and intact if the device is carefully handled. It is therefore important to observe the following instructions: ...

  • Page 15: Mounting The Dynamometer

    MiniDyn Multicomponent Dynamometer, Type 9119AA2 4.2 Mounting the Dynamometer To mount the dynamometer properly, please note the following:  The dynamometer must only be installed by persons who are familiar with the device and who are suitably qualified for this work ...
  • Page 16 Mounting, installation and initial startup The bottom surface of the dynamometer is ground, i.e. precision machined. The device must therefore only be installed on mounting surfaces that are ground or machined to the same standard. The specific alignment of the force sensors requires the quality of the mounting surface to be meticulously monitored.
  • Page 17 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 The dynamometer can be mounted in two different ways. a. With 8 M4x25 screws For this type of mounting, 8 M4 threaded bores (minimum thread length: 12 mm) are required on the assembly table. The tightening torque is always 4.3 N·m, the strength class 12.9.

  • Page 18: Mounting The Measuring System

    Mounting, installation and initial startup 4.3 Mounting the measuring system 4.3.1 Mounting the machine adapter Thoroughly clean all the mounting surfaces before assembly. Dynamometer Type 9119AA2  First the dynamometer is fitted onto the appropriate machine adapter Mounting screw tightening torque: 4,3 N·m. ...

  • Page 19: Mounting The Toolholder

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 4.3.2 Mounting the toolholder Thoroughly clean all the mounting surfaces before assembly. Toolholder for lathe tool Type 9119AE…  The toolholder is fitted to the cover plate of the dynamometer by 6 M5 screws. Mounting screw tightening torque: 10 N·m ...

  • Page 20: Mounting Examples

    Mounting, installation and initial startup 4.4 Mounting examples Example 1 Axially mounted dynamometer for turning the outside diameter with machine adapter Type 9119AB30S (VDI toolholder) and toolholder Type 9119AE16. Workpiece direction of rotation: Fig. 4: Type 9119AA2, 9119AB30S, 9119AE16 9119AA2_002-623e-04.18 Page 17...
  • Page 21 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Example 2 Axially mounted dynamometer for turning the outside diameter (tool inverse) with machine adapter Type 9119AB30S and toolholder Type 9119AE16. Workpiece direction of rotation: Fig. 5: Type 9119AA2, 9119AB30S, 9119AE16 Page 18 9119AA2_002-623e-04.18...
  • Page 22 Mounting, installation and initial startup Example 3 Axially mounted dynamometer for turning the inside diameter with machine adapter Type 9119AB30R (VDI toolholder, right) and toolholder for boring bars Type 9119AF16. Fig. 6: Type 9119AA2, 9119AB30R, 9119AF16 9119AA2_002-623e-04.18 Page 19...
  • Page 23 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Example 4 Radially mounted dynamometer for turning the inside diameter with machine adapter Type 9119AB30S (VDI toolholder) and toolholder for boring bars Type 9119AF16. Fig. 7: Type 9119AA2, 9119AB30S, 9119AF16 Page 20 9119AA2_002-623e-04.18...
  • Page 24 Mounting, installation and initial startup Example 5 As example 1, but with an additional swarf guard fitted. Spanschutz Fig. 8: Type 9119AE… with swarf guard Toolholders for lathe tool Type 9119AE… each come supplied with a swarf guard. This is attached to the machine adapter.
  • Page 25 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Beware! The dynamometer, the toolholder and the tool must not touch the swarf guard, as this would falsify the measuring results. Toolholder Cover plate Swarf guard Fig. 9: The dynamometer, toolholder and tool must not touch the swarf guard Page 22 9119AA2_002-623e-04.18...

  • Page 26: Mounting The Lathe Tool In Toolholder Type 9119Ae

    Mounting, installation and initial startup 4.5 Mounting the lathe tool in toolholder Type 9119AE… When mounting the lathe tool, make sure that the tool fits properly against the plate of the Type 9119AE… holder. Spacer sheets can be used to ensure this, for example. This is the only way to ensure optimum transmission of the forces that occur to the Type 9119AA2 dynamometer.

  • Page 27: Mounting The Measuring System With Machine Adapter Type 9119Ab

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Mounting the measuring system with machine adapter Type 9119AB… to the turret disk 4.6.1 Removing positioning bolts and indexing pins Depending on the size of the turret disk, it is essential to remove the indexing pins and positioning bolts of adjacent tool locations, so that the Type 9119AA2 measuring system can be properly fitted.
  • Page 28 Mounting, installation and initial startup Work steps  Put the sleeve with the mounting bore on the pin/bolt Fig. 12: Putting on the sleeve  Screwing in the screws draws the pin/bolt out of the bore Fig. 13: Screwing in the screw to draw out the pin/bolt 9119AA2_002-623e-04.18 Page 25...

  • Page 29: Covering The Locating Holes For The Adapter

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 4.6.2 Covering the locating holes for the adapter To stop dirt getting into the locating hole of adjacent tool locations during measurement, it is advisable to cover these holes. This can be done with individual sealing caps. The original covers provided by the machine manufacturer are normally too big, making it impossible to mount the measuring system properly.

  • Page 30: Basic Connection And Cabling Of The Measuring System

    Mounting, installation and initial startup 4.7 Basic connection and cabling of the measuring system Charge amplifiers convert the electric charges output by the dynamometer (picocoulomb = pC) into proportional voltages that can be displayed, recorded or processed with the usual instruments. Please note the following information when cabling the measuring system ...

  • Page 31: Basic Connection And Cabling Of The Measuring System

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 4.9 Basic connection and cabling of the measuring system Charge amplifiers convert the electric charges yielded by the dynamometer (pC) into proportional voltages that can be displayed, recorded or processed with the usual instruments. Please note the following information when cabling the measuring system ...

  • Page 32: Measuring System For 3-Component Measurement (Fx, Fy, Fz)

    Mounting, installation and initial startup 4.10 Measuring system for 3-component measurement (Fx, Fy, Fz) The diagram below shows the elements required to connect a dynamometer to a multichannel charge amplifier (e.g. Type 5080Axx3x001). This is a ground-isolated measuring chain with a 3-wire cable. MiniDyn Connecting cable Multichannel charge amplifier...

  • Page 33: 3-Component Force Measurement

    If it is possible that the dynamometer could be damaged by the loads that occur, please contact Kistler customer service, where this loading can be calculated and an assessment made.

  • Page 34: Measuring System For 6-Component Measurement (Fx, Fy, Fz, Mx, My, Mz)

    Mounting, installation and initial startup 4.12 Measuring system for 6-component measurement (Fx, Fy, Fz, Mx, My, Mz) The diagram below shows the elements required to connect a dynamometer to a multichannel charge amplifier (e.g. Type 5080Axx8x004). This is a ground-isolated measuring chain with an 8-wire cable.
  • Page 35 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 The individual forces and torques can be calculated as follows: x1+2 x3+4 y1+4 y2+3 b · (F – F – F ) · kM a · (–F – F ) · kM b · (–F ) + a ·...

  • Page 36: Operation

    Operation 5. Operation 5.1 Range selection With Type 9119AA2 multicomponent dynamometer, it is advisable to use charge amplifiers with sensitivity adjustment (e.g. Type 5080A...). Set the sensitivities for channels F and F in accordance with the details in the calibration sheets. This directly adjusts the output voltage to the value appropriate to the selected scale (...N/V).
  • Page 37 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 a Set the amplifier to <Reset>. Choose the range for F as follows: · (amplifier <Long Time Constant>). b Switch the amplifier to <Operate>. c Apply F (start the machine tool). d Once the force is read out and/or recorded, switch the amplifier back to <Reset>, so that the charge relevant to is dissipated.

  • Page 38: Useful Frequency Range

    Operation 5.3 Useful frequency range At the upper frequency limit, the dynamometer frequency behavior has relatively little damped oscillation. The frequencies can be resolved up to about a third of their natural frequency without any notable measuring errors. The lower frequency limit is defined by the charge amplifier drift and the insulation quality.
  • Page 39 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Rule The better the quartz force link (dynamometer) is mounted on the table underneath and the better the force application part is mounted on the element, the higher the resonance frequency and therefore the useful frequency range of the measuring system.

  • Page 40: Piezoelectric Force Measurement

    Charge Meter 5015A 5.4 Piezoelectric force measurement Accuracy With a piezoelectric measuring chain, the question of accuracy cannot simply be answered with a numerical value. As well as the specified sensor and charge amplifier errors, the result is also influenced by temperature and other environmental factors.
  • Page 41 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Temperature error A change in temperature causes the force sensor to experience internal thermal voltages, which produce an error in the measurement. We define this error as: temperature error [N/°C] The extent of the error depends on the sensor and on the preload elements and can be experimentally determined for a quartz force link.
  • Page 42 Operation Cables Cables and connectors must be kept clean and dry, otherwise electrical drift will increase the error. The drift of a measuring chain can be measured if the sensor is not under load and the charge amplifier is set to <Operate>. If the electrical drift is greater than specified, the insulation value of the measuring chain is inadequate.

  • Page 43: Tips For Better Measuring Results

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 5.5 Tips for better measuring results  Always store the measuring instruments in the room in which the measurements are to be taken  Where possible, leave the cable permanently connected to the sensor  Install the sensor exactly as instructed ...

  • Page 44: Maintenance

    Quality management systems, such as those that are ISO 9001-compliant, demand documentation and periodic recalibration of the measuring device. Kistler recommends that this type of re-calibration is carried out every two years. 9119AA2_002-623e-04.18 Page 41...

  • Page 45: Maintenance Work

     Regularly clean the vacant nine-pin dynamo-meter plug connection or the connecting cable with a cleaning agent such as the Kistler Type 1003 cleaning and insulating spray or pure benzine Page 42 9119AA2_002-623e-04.18...

  • Page 46: Fault Elimination

    Fault elimination 7. Fault elimination 7.1 Troubleshooting The typical causes of faults and tips for remedying them are listed below. If you cannot remedy a fault, please contact your Kistler distributor. Fault Cause Remedy No measurement signal Signal lead break...

  • Page 47: What To Do If The Dynamometer Is Faulty

    7.2 What to do if the Dynamometer is faulty If your dynamometer is faulty, please note the following:  Get in touch with your Kistler distributor and advise them of the delivery of the faulty device  Send the faulty dynamometer to the Kistler distributor in its original packaging ...

  • Page 48: Technical Data

    Technical data 8. Technical data Please note that all the technical data and all the other information contained in this chapter may be changed at any time without notice. 8.1 MiniDyn Type 9119AA2, general setup (without machine and tool adapters) Measuring range (centric), individual components;...

  • Page 49: Minidyn Type 9119Aa2, Setup For Force Measurement When Turning (With Machine And Tool Adapters)

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Weight Dynamometer 1,35 Cover plate 0,72 Clamping area 55x80 8.2 MiniDyn Type 9119AA2, setup for force measurement when turning (with machine and tool adapters) Max. allowed measuring range F x , F z –2 … 2 –3 …...

  • Page 50: Maximum Measuring Ranges

    Technical data 8.3 Maximum measuring ranges Fig. 20: Max. force measuring ranges F ) of the Type 9119AA2 measuring system for different machine adapters, subject to tool overhang (all the forces can occur simultaneously) Fig. 22: Max measuring range of forces F ) and F ) of the Type 9119AA2 measuring system, subject to tool overhang (all the forces can...

  • Page 51: Dimensions

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 8.4 Dimensions 8.4.1 Dynamometer Type 9119AA2 dimensions Fig. 21: MiniDyn Type 9119AA2 Page 48 9119AA2_002-623e-04.18...

  • Page 52: Type 9119Ab

    VDI 25 9119AB30S VDI 30 Fig. 22: Machine adapter with straight shank for disk turret with DIN 69880 VDI toolholder, Type 9119AB… Please look for the dimensions of machine adapters with VDI interface left/right configuration on: http://kistler.partcommunity.com 9119AA2_002-623e-04.18 Page 49...

  • Page 53: Type 9119Ac

    9119AC03S 9119AC4S 9119AC5S 22,5 52,5 Fig. 23: Machine adapter with Capto for disk turret with ISO 26623 Coromant-Capto clamping unit, Type 9119AC… Please look for the dimensions of machine adapters with Capto interface left/right configuration on: http://kistler.partcommunity.com Page 50 9119AA2_002-623e-04.18...

  • Page 54: Type 9119Ah

    Technical data 8.4.4 Type 9119AH… dimensions Fig. 24: Machine adapter for disk turret with ISO 12164-3/4 HSK-T toolholder, Type 9119AH63S Please look for the dimensions of machine adapters with HSK-T interface left/right configuration on: http://kistler.partcommunity.com 9119AA2_002-623e-04.18 Page 51...

  • Page 55: Type 9119Ae

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 8.4.5 Type 9119AE… dimensions Type [mm] [mm] [mm] 9119AE08 M5x20 9119AE10 M5x20 9119AE12 M6x20 9119AE16 M6x20 9119AE20 M6x20 Type [inch] [mm] [mm] 9119AE0,31 0,31 M5x20 9119AE0,38 0,38 M5x20 9119AE0,50 0,50 M6x20 9119AE0,63 0,63 M6x20 Fig. 25: Toolholder for lathe tool Type 9119AE…...

  • Page 56: Type 9119Af16 Dimensions

    Technical data 8.4.6 Type 9119AF16 dimensions øAG7 Reduzier- Artikel Gewicht- Gewicht [mm] hülse hülse [g] keine – ≈230 ø16/12 55061003 ≈245 ø16/10 55061002 ≈250 ø16/8 55060544 ≈255 Fig. 26: Toolholder for boring bars up to ø16 mm, ø16/12 mm, ø16/10 mm and ø16/8 mm with reducing sleeves, Type 9119AF16 9119AA2_002-623e-04.18 Page 53...

  • Page 57: Measuring System Components

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 8.5 Measuring system components 9119AE08 9119AE10 9119AE12 9119AE16 9119AE20 9119AE0,31 9119AE0,38 9119AE0,50 9119AE0,63 Fig. 27: Overview of standard components Page 54 9119AA2_002-623e-04.18...

  • Page 58: Accessories

    Accessories 9. Accessories 9.1 Included accessories Included with Type 9119AA2: Mat. no.  Mounting screws (8 x M4x25) 65012704 9.2 Optional accessories  Connecting cable, 3-wire 1687B...  Connecting cable, 3-wire 1687BQ02 9119AA2_002-623e-04.18 Page 55...
  • Page 59 MiniDyn Multicomponent Dynamometer, Typ 9119AA2  Connecting cable, 3-wire 1689B…  Connecting cable, 8-wire 1677A… Page 56 9119AA2_002-623e-04.18...
  • Page 60 Accessories  Connecting cable, 8-wire 1679A… For other cables, see data sheet 1687B_000-545d Type  Cleaning spray 1003  Insulation tester 5493 Fig. 28: Cleaning and insulation spray, 250 ml, Type 1003 Fig. 29: Type 5493 insulation tester 9119AA2_002-623e-04.18 Page 57...

  • Page 61: Ordering Code

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 10. Ordering code Ordering code Type/item no.  Multicomponent dynamometer 9119AA2 up to 4 kN, cover plate 55x80 mm Included accessories  M4x25 mounting screws (eight) 65012704 Capto is a registered trademark of the Sandvik Group. Page 58 9119AA2_002-623e-04.18...

  • Page 62: Appendix

    The cable capacitance, and thus the length of the Cable capacitance connecting cable, has no noteworthy influence on the measuring result when Kistler special cables and Kistler charge amplifiers are used. Calibrated range Measuring range or part of the measuring range for which the sensor has been calibrated.
  • Page 63 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Disturbance Quantity that is not the measurand but that affects the result of the measurement. The contributions are expressed in terms of the measurand related to the acting quantity. Examples:  additional bending moment acts on a force sensor: M ...
  • Page 64 Repeated loading (1 … 3 times) of a calibration object prior to the calibration cycles applied for eliminating stresses within the object and/or for ensuring a rigid force application. quasistatic Describes the ability of Kistler sensors and charge amplifiers to undertake short-term measurements or DC-similar measurements. see "Measuring range" Range...
  • Page 65 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Sensor System which produces a definite change in the output signal as a function of the change of the measurand acting on it. Note: The term "Sensor" is equivalent to "Transducer" Temperature influence see Annex 11.5. Largest change in the measurand that produces a Threshold measurable change in the sensor output, while the change...

  • Page 66: Measurement Uncertainty

    0,2 ... 0,5 % FSO Laboratory charge amplifier 1 % FSO Industrial charge amplifier Higher accuracy can be achieved with the following procedures: Calibration in the Kistler factory  Calibration with charge amplifier Type 5395A  Restriction of the temperature range ...

  • Page 67: Linearity

    Errors due to zero drift caused by influences changing with time, such as the temperature, are thus basically excluded. With Kistler piezoelectric measuring chains, a typical repeatability within 0,1 % FSO can be assumed. 11.3 Linearity...
  • Page 68 Appendix Best straight line – mathematical definition The minimization of maximum deviation is known as Chebyshev’s approximation. The best straight line is determined as follows: = measurand (reference)   = sensor charge signal or output signal from the charge amplifier ) = calibration curve, rising and falling ...

  • Page 69: Frequency Range

    MiniDyn Multicomponent Dynamometer, Typ 9119AA2 11.4 Frequency range Because of their mechanical quality, piezoelectric sensors have very low damping. The useful frequency range is limited in the upwards direction by the increasing resonance rise. Key: f Measuring frequency Natural frequency Amplitude ratio The following approximate values apply to the amplitude error or achievable accuracy as a function of frequency:...

  • Page 70: Influence Of Temperature

    Appendix In their dynamic behavior, piezoelectric sensors are superior to all other measuring methods. Their high rigidity results in the highest possible natural frequencies. Piezoelectric sensors are thus ideal for measuring measurands which change rapidly over time. Their dynamic behavior is thereby largely determined by the surrounding structure.
  • Page 71 MiniDyn Multicomponent Dynamometer, Typ 9119AA2 Temperature gradient error (dynamic error) A temporary change in the output signal is denoted as temperature gradient error, when the temperature of the environment or surrounding medium changes with a certain rate. In this case, the sensor is not in thermal equilibrium with the environment.

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