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CN-121994103-A - Touch measuring device

CN121994103ACN 121994103 ACN121994103 ACN 121994103ACN-121994103-A

Abstract

The invention relates to a tactile measuring device having a housing, a touch probe lever mounted in the housing, and a carrier shaft which can be fastened to the housing in a radially adjustable manner and is supported on the housing. According to the invention, it is provided that the radial adjustment of the support shaft on the housing is performed in the axial direction in the direction of the touch probe lever after the supporting contact of the support shaft on the housing.

Inventors

  • FRANZ HAMMER

Assignees

  • 弗兰茨·翰默机械制造两合公司

Dates

Publication Date
20260508
Application Date
20250825
Priority Date
20241104

Claims (12)

  1. 1. A tactile measuring device, in particular a multi-coordinate tactile measuring device, having a housing, a touch probe lever mounted in the housing, and a carrier shaft which can be fastened to the housing in a radially adjustable manner and is supported on the housing, It is characterized in that the method comprises the steps of, Radial adjustment of the carrier shaft on the housing is performed in the axial direction in the direction of the touch probe lever after supporting contact of the carrier shaft on the housing.
  2. 2. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The bearing shaft has a connection flange at one end with an annular extension/annular portion forming a centering/adjustment opening.
  3. 3. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The housing has an annular groove forming a stub.
  4. 4. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The stub is formed in one piece with the housing and/or other outer surfaces of the housing protrude beyond the axial end side of the stub.
  5. 5. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The annular extension/annular portion engages in the annular groove with in particular radial play.
  6. 6. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The annular extension/annular portion has a plurality of, preferably three or four threaded holes arranged evenly distributed over the circumference for adjusting the screws.
  7. 7. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, A first support/guide or mating surface forming the support contact and in particular perpendicular to the axis is formed at the stub or at the end side of the stub and a corresponding second support/guide or mating surface forming the support contact and in particular perpendicular to the axis is formed at the connection flange or at the end side of the connection flange.
  8. 8. The tactile measurement device according to the preceding claim, It is characterized in that the method comprises the steps of, The corresponding second support/guide or mating surface is formed at the connection flange radially inward of the annular extension/annular portion of the connection flange.
  9. 9. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The carrier shaft has an axial bore for an axial clamping screw by means of which the carrier shaft can be screwed to the housing.
  10. 10. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, In the case of the housing, a bushing, in particular with an internal thread, is inserted into an opening in a stub of the housing according to claim 3, and an axial clamping screw, in particular according to the preceding claim, can be connected or screwed into the bushing.
  11. 11. Haptic measuring device according to one of the preceding claims, It is characterized in that the method comprises the steps of, The touch probe lever pivotable about a pivot point has a touch probe/measuring arm with a touch probe/measuring tip at one end of the pivot point and a coupling arm at the other end of the pivot point, wherein in particular a convex, in particular spherical, outer control surface is formed at the free end of the coupling arm.
  12. 12. The tactile measurement device according to the preceding claim, It is characterized in that the method comprises the steps of, A sleeve-shaped coupling piece is guided displaceably in the housing in the axial direction in the direction of the main coordinate axis/measuring axis, in particular forming an inner control surface at one end, which abuts against the outer control surface, in the form of a frustoconical surface, preferably with a linear generatrix.

Description

Touch measuring device The present invention relates to a tactile sensation measuring device. Tactile measuring devices (in this case, multi-coordinate tactile measuring devices) are known, for example, from german patent documents DE 41 00 323c2, DE 195 02 840c2 and DE 100 14 630a 1. Such a multi-coordinate tactile measuring instrument can be clamped in a machine tool (or measuring instrument, etc.) or its spindle and allows the spindle axis to be positioned precisely at the edge of the workpiece or device. Thus, a workpiece zero point can be set and a length or distance measurement can be made quickly and easily. In these known multi-coordinate tactile measuring instruments, which in particular have a touch probe lever with a touch probe element at their end, their touch probe lever can be displaced in the direction of a main coordinate axis/measuring axis defined by the guide of the housing and can be deflected transversely thereto by means of a universal joint. The movement of the touch probe lever is detected by the sensor and the length value and the distance value are calculated therefrom. The housing is mounted via corresponding support/guide or mating surfaces which bear against one another and are perpendicular to the axis here (simply referred to as support/bearing contact) on a carrier shaft, the axis of which extends coaxially with the main coordinate axis/measuring axis in the case of use. An axial clamping screw is provided for holding/fixing the carrier shaft on the housing, which screw screws the carrier shaft under tension to the housing via corresponding support/guide or mating surfaces which abut against one another and are here perpendicular to the axis or via the mentioned bearing/support contacts. The multi-coordinate measuring instrument is then mounted in the spindle of the machine tool (or measuring instrument) via a standard coupling (or a different tool holder), for example by means of a steep taper spindle. In order to be able to center the center point of the touch probe element with the rotational axis of the spindle of the machine tool or measuring instrument, the housing facing the carrier shaft is engaged with a stub on the housing into an opening in the carrier shaft, which opening allows a radial play between the carrier shaft and the stub. Thus, i.e. due to play, the housing is radially movable and displaceable coaxially with the carrier shaft and can be centered or adjusted by means of a plurality of set/adjustment screws which are mounted on the carrier shaft and which can be screwed (adjusted) against the studs. This centering/adjustment formed by the carrier shaft and the housing (in order to achieve or ensure centering of the center point of the touch probe element with the rotational axis of the spindle) has a significant impact on the measurement accuracy of the multi-coordinate tactile measuring instrument. It also defines to a large extent the geometry, in particular the dimensions, such as the length and the size, of the multi-coordinate tactile measuring instrument. It is an object of the present invention to improve the multi-coordinate tactile measuring instrument known from the prior art. This object is achieved by a tactile measuring device having the features of the independent claims. Advantageous developments of the invention are the subject matter of the dependent claims and the following description. Terms (such as upper, lower, front, rear, left or right) which may be used are understood in their ordinary sense unless explicitly defined otherwise. Terms such as radial and axial, when used and unless explicitly defined otherwise, should be understood with reference to the central axis or axis of symmetry of the parts/components described herein. The term "substantially" when used is to be understood as (in the sense of the highest court of law) "to a substantial extent in practice". Thus, due to manufacturing or assembly tolerances, etc., possible deviations from the exact value implied by this term may be created unintentionally (i.e., for non-functional reasons). Subject of the invention A tactile measuring device, such as in particular a multi-coordinate tactile measuring device, provides a housing, a touch probe lever mounted in the housing, and a carrier shaft which is fastened or can be fastened to the housing in a radially adjustable manner ("radial adjustment"), is supported on the housing ("support/support contact"). Furthermore, it is provided that the radial adjustment of the carrier shaft on the housing takes place in the axial direction in the direction of the touch probe lever after the supporting contact of the carrier shaft on the housing. Briefly and illustratively, the radial adjustment is positioned in front of the support contact, moving in the axial direction from the housing-side end of the bearing shaft. The tactile measuring device can thus be "shifted"/"shifted" or "shifted"/"into the housing" radially centered within the oute