• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A hardness tester (9) has a test body (12) and a holder (2) for a test object (3) which are displaceable towards and away from one another by means of a drive (4). A manually operable control (13, 15, 16) has a from a zero position against the force of a spring (14) adjustable control element (13), for example, a knob on.
    公开号:AT511242A1
    申请号:T4582011
    申请日:2011-03-31
    公开日:2012-10-15
    发明作者:Robert Ing Hoell
    申请人:Qness Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a hardness tester with a test specimen and a holder for a test object, which are mutually displaceable by means of a drive toward and away from each other, and with a manually operable control for the drive.
    Hardness testers are known in which the test object is delivered to the holder with a handwheel from below to the test unit. It is also known to deliver the test unit from above by means of a hand wheel on the test object, while the test object rests fixed on a holder or on a table. The handwheel directly drives a threaded spindle or a corresponding lifting gear is used. An advantage of this design is a very sensitive delivery, as the rotary motion is converted directly into feed. As a result, collisions can be easily avoided and it is an accurate positioning possible. One disadvantage is that the operation is particularly strenuous, especially with long travel distances, heavy test units or many tests.
    There are also hardness testers are known in which the height adjustment is done with an electric drive. If a key or two-handed keys are pressed, the test unit moves up or down at a certain speed.
    The speed can not be controlled dynamically here. Advantages of this embodiment are that no
    Effort is needed and fast traversing speeds are possible. Disadvantages are that the test unit is unfeeling to use depending on speed and hard postionierbar and therefore there is a high risk of collision and consequently the risk of damage to optics or diamond or test object.
    Finally, electrical height adjustments by means of sliders on a display are known. The speed can be changed dynamically by means of the slider. This allows a more accurate positioning. The disadvantages of this type of control, however, are that even here the delivery or positioning is not possible with much feeling and the controller can not be operated with gloves.
    The invention is therefore based on the object to provide a hardness tester, with a sensitive and dynamic motion control is possible, which is not strenuous for the operator.
    This object is achieved in a hardness tester of the type mentioned above in that the manually operable control has a controllable from a zero position against the force of a spring control.
    Preferably, the control is a knob, a hand wheel or the like. This may for example be attached to a potentiometer and in a further preferred embodiment have a central position, in which it is brought back automatically by a return spring when the control is released. For example, the potentiometer can be rotated from the center position by +/- 60 ° in both directions. When rotated in one direction, the test unit or the test object holder moves up, turning down in the other direction.
    The speed is determined by the angle of rotation. At a small angle of rotation · the machine moves slowly or even very slowly so that it can be positioned very precisely. The speed then increases either linearly or preferably exponentially with the angle of rotation, so that even high travel speeds can be achieved.
    The control behavior of the potentiometer can be set by appropriate parameters in the controller.
    Instead of a potentiometer could be used in a rotatable control and a simple encoder that gives the angular position to the controller of the drive on.
    But there are also controls in the form of a slider possible, for example, a sliding potentiometer or a linear incremental encoder, which are displaceable in one or two directions against a spring force.
    Such controls, especially rotatable controls such as knobs, small hand wheels or adjusting wheels, are very good in the hand and give feedback by the restoring force of the spring. There is no effort required for the operator because it does not need to be cranked. It is possible with a small angle of rotation or sliding path a very accurate positioning but also a very high adjustment speed at maximum rotation angle or sliding path. By zeroing or middle position this is possible in both directions and when you release the control, the machine remains independent and immediately stand, which provides a secure passive collision protection. In addition, the machine can also be operated with gloves.
    Further preferred embodiments of the invention are the subject of the remaining dependent claims.
    Further features and advantages of the invention will become apparent from the following description of a preferred embodiment of the invention in the form of a hardness testing machine schematically shown in the accompanying drawing with a hardness tester according to the invention.
    The embodiment of a hardness testing machine shown in the drawing comprises a machine frame 1 with a support in the form of a table 2 on which test objects 3, e.g. a gears, to be hung up. Under the table 2, an electric motor 4 is arranged, which drives a vertically aligned threaded spindle 6 via a spindle gear 5. With the threaded spindle 6, a spindle nut 7 cooperates, which is connected to a holder 8 of a hardness tester 9. The hardness tester 9 is further on a vertical guide 10 on the machine frame 1 in the direction of the double arrow 11 up and down, so to the test object 3 and away from this, displaced. The hardness tester 9 is a test body or indenter 12 is arranged, which may be, for example, a test specimen for a hardness test according to Vickers, Brinell or Rockwell depending on the measuring method used. The invention is not limited to a particular form and type of hardness testing but can be used for all possible or known forms and types of hardness tests.
    In order to move the hardness tester 9 up and down on the machine frame 1, a rotary knob 13 is provided as a control which can be rotated against the force of springs 14 from a zero position in both directions, that is clockwise and counterclockwise. The knob 13 is, as soon as it is released, automatically rotated by the springs 14 back to the zero position. With the rotary knob 13, for example, a potentiometer 15 or a rotary encoder is controlled, the / controls the drive via a controller 16 in the form of the electric motor 4. Due to the slope of the spring characteristic of the mechanical resistance to rotation of the knob 13 can be adjusted and by the potentiometer 15 and the controller 16, the speed at which the hardness tester 9 at a certain rotation angle of the knob 13 or a certain slide position on the machine frame 1 and moved off.
    In this way, for the operator, an immediately tangible relationship between the force and the angle at which the knob 13 is rotated and the speed at which the hardness tester 9 is moved up and down the machine frame 1 is given, which is a very immediate one Controlling the movement of the hardness tester 9 with very small but also high speed allowed. • # s
    In principle, it would be conceivable in the invention that the displacement of the hardness tester 9 or the table 2 in one direction only, e.g. towards each other, with the or a control element 13 according to the invention and the displacement in the other direction either with an inventively executed second control element 9 or with another, possibly not according to the invention running control.
    权利要求:
    Claims (1)
    [1]
    Hardness tester with a test body (12) and a holder (2) for a test object (3), which are displaceable towards and away from each other by means of a drive (4), and with a manually operable control (13, 15, 16) for the drive (4), characterized in that the manually operable control (13, 15, 16) has a from a zero position against the force of a spring (14) adjustable control element (13). Hardness tester according to claim 1, characterized in that the control element (13) is a rotary knob. Hardness tester according to claim 1, characterized in that the control element is a slide. Hardness tester according to one of claims 1 to 3, characterized in that the control element (13) from the zero position in opposite directions against the force of a spring (14) is adjustable. Hardness tester according to one of claims 1 to 4, characterized in that the controller (13, 15, 16) has a potentiometer (15) which is actuated by the control element (13). Hardness tester according to one of claims 1 to 5, characterized in that the controller has an incremental encoder, which is actuated by the control element (13). Hardness tester according to one of claims 1 to 6, characterized by a linear ratio of the path or angle of the adjustment of the control element (13) and the displacement speed. Hardness tester according to one of claims 1 to 6,

    * * «· * · * • ·« ·



    characterized by an exponentially increasing ratio of the path or angle of the adjustment of the control element (13) and the displacement speed.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102012100640B4|2016-07-28|
    ITMI20120447A1|2012-10-01|
    AT511242B1|2013-01-15|
    DE102012100640A1|2012-10-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SU739505A1|1977-12-28|1980-06-05|Предприятие П/Я В-8670|Control knob|
    GB2190796A|1986-05-19|1987-11-25|Manji Ravji Kanji Kerai|Rotary resistor with biasing means|
    DE4021178A1|1990-07-03|1992-01-09|Krautkraemer Gmbh|Measuring hardness using penetrating pointed rod - pushed by force e.g. wt. also used to hold retaining part for sample|
    JPH0866882A|1994-08-29|1996-03-12|Chubu Electric Power Co Inc|Multi-axis joystick|
    JP2002108473A|2000-10-02|2002-04-10|Tsubame Musen Kk|Joy stick|
    JP2008129859A|2006-11-21|2008-06-05|Tokai Rika Co Ltd|Joystick type operation device|
    US5355721A|1992-12-18|1994-10-18|Las Navas Garcia Jose M|Method and apparatus for measuring depth and hardness|
    US6247356B1|1999-03-30|2001-06-19|Instron Corporation|Hardness tester|
    DE102006007600B4|2006-02-18|2016-12-15|Leopold Kostal Gmbh & Co. Kg|Turntable for electric or electronic bone in a motor vehicle|
    AT506310B1|2008-02-21|2009-08-15|Emco Test Pruefmaschinen Gmbh|DEVICE FOR TESTING HARDNESS OF WORKPIECES|AT515288B1|2014-06-13|2015-08-15|Emco Test Prüfmaschinen Gmbh|DEVICE FOR PRODUCING AN IMPRESSION|
    DE102019117577A1|2019-06-28|2020-12-31|Qness Gmbh|Hardness testing device and method for hardness testing|
    CN110779790A|2019-09-25|2020-02-11|杭州广安汽车电器有限公司|Toggle durability test fixture|
    CN110658090A|2019-10-31|2020-01-07|济南众维铸锻钢球有限公司|Hardness measuring device for large-scale casting and forging|
    法律状态:
    2020-09-15| HC| Change of the firm name or firm address|Owner name: ATM QNESS GMBH, AT Effective date: 20200805 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT4582011A|AT511242B1|2011-03-31|2011-03-31|TESTER|AT4582011A| AT511242B1|2011-03-31|2011-03-31|TESTER|
    DE102012100640.7A| DE102012100640B4|2011-03-31|2012-01-26|Hardness Tester|
    ITMI20120447| ITMI20120447A1|2011-03-31|2012-03-21|DUROMETER|
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