A coupling element for receiving a probe tip of a probe measuring device, a screw insert for receiving a probe tip of a probe measuring device, a coupling assembly for a probe insert of a probe measuring device, a probe measuring device

Abstract

The present invention provides coupling elements, screw inserts, coupling assemblies, and probe measuring devices for receiving probe tips of probe measuring devices. [Solution] In order to enable easy and quick attachment of the probe tip 8 to the probe measuring device 2, the coupling element 16 provides a journal 24a at one end that forms a first connection / coupling region 18, or the screw insert 116 provides a first connection / coupling region 118 at one end, in particular for connection to the coupling element 16, having a recess 124. The journal 24a of the coupling element 16 forms a plurality of non-adjacent screw thread segments 28 or 126 on the outer surface 60, or the recess 124 of the screw insert 116 forms a plurality of non-adjacent screw thread segments 28 or 126 on the inner surface 70, respectively.

Description

Technical Field

[0001] The present invention relates to a coupling element for receiving a probe chip of a probe measuring device, a screw-in insert for receiving a probe chip of a probe measuring device, a coupling assembly for a probe insert of a probe measuring device, and one or more probe measuring devices.

Background Art

[0002] A probe measuring device that can perform distance measurements in both the direction of the measurement axis and the lateral direction with respect to the measurement axis, for example, a multi-coordinate probe measuring device, also simply referred to as a 3D probe for short, is known, for example, from (Patent Document 1).

[0003] This probe measuring device includes a housing in which a probe lever, sometimes also called a probe arm, is guided so as to be displaceable in the direction of the measurement axis defined by the housing. Further, the probe lever is guided on the housing so as to be pivotable in all directions around a pivot point located on the measurement axis, for example, in the form of a universal joint of a ball joint in (Patent Document 1) in this case, and the probe lever is elastically pre-loaded by a return spring.

[0004] The probe lever projects from the housing and often has a probe insert, also often referred to as a probe chip for the sake of brevity, and its free probe end formed by a probe ball defines a probe reference point on the measurement axis when the probe lever is in the rest position.

[0005] Regarding the pivot point, the coupling arm of the probe lever, also called the measurement shaft of the probe lever, projects in the opposite direction to the probe insert into a circular cylindrical guide opening in the center of the housing with respect to the measurement axis.

[0006] The probe insert, which includes not only a probe ball but also a pin to receive the probe ball and a sleeve sequentially connected to the pin, is screw-connected to the coupling arm by a screw connection arrangement having a centering element and a threaded rod having a male thread.

[0007] Therefore, the probe insert, in this case the sleeve of the probe insert, is held in a corresponding hole at its end on the opposite side of the joint ball, in the direction of the probe insert. On the opposite side of the end of the hole, the centering element has a threaded rod and or a female thread that screws into the male thread of the threaded rod. At its end, away from the probe insert, the threaded rod is screwed to the female thread of the coupling arm by the male thread on the threaded rod.

[0008] The dial gauge, held on the housing, records the position of the measuring shaft or probe lever relative to the housing.

[0009] Improper use of such probe measuring devices can damage the probe insert, for example, by damaging the area of ​​the (ceramic) sleeve of the probe insert, which is made of ceramic and acts as a predetermined fracture point. In such cases, the probe insert will need to be replaced or replaced. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] International Publication No. 02 / 103282A1 [Overview of the Initiative] [Problems that the invention aims to solve]

[0011] The objective of the present invention is to create a simple, inexpensive, and quickly replaceable coupling for probe inserts in a probe measuring device. [Means for solving the problem]

[0012] The aforementioned objective is achieved by a coupling element for receiving a probe tip of a probe measuring device, a screw insert for receiving a probe tip of a probe measuring device, a coupling assembly for a probe insert of a probe measuring device, and one or more probe measuring devices, each having the features of an independent claim. Dependent claims and the following description relate to preferred improvements of the present invention.

[0013] Unless otherwise explicitly defined, the terms used, such as axial and radial directions, should be understood to refer to the measurement axis of a probe measuring device having the elements of the present invention.

[0014] The binding element according to the present invention has a journal at one end that forms a first connection / binding region.

[0015] The journal has multiple thread segments on its outer surface that are not adjacent to each other in the radial direction.

[0016] The screw insert according to the present invention also has a first connection / connection region at one end, in particular for connecting to a coupling element. The first connection / connection region has a recess, on the inner surface of the recess, a plurality of non-adjacent screw thread segments are formed.

[0017] Such thread segments (on a coupling element or on a thread insert) may be formed by one or more recesses that in either case form a portion of a thread turn (in which case such recesses or “protrusions” separating such portion of a thread turn can be considered (referred to) as thread flanks).

[0018] Simply put, in the radial direction, between thread segments (on the outer surface of the journal (in the case of a coupling element) or on the inner surface of a recess (in the case of a threaded insert)), a non-threaded region or section is formed, which will hereafter be referred to as a discontinuity, for example, a substantially smooth partial cylinder surface / shell, for abbreviated purposes.

[0019] In other words, in descriptive terms, on the journal surface or the inner surface of the recess, thread segments (in the case of a journal of a binding element, in descriptive terms, male thread segments, or in the case of an inner recess of a thread insert, in descriptive terms, female thread segments) and areas without threads, i.e., discontinuities, occur alternately in the radial direction.

[0020] This has proven advantageous in that a corresponding mating part to a coupling element or threaded insert, for example, a threaded insert to a coupling element (or vice versa), can be easily and quickly coupled to the coupling element or threaded insert, for example, by (rapid) rotational coupling, i.e., by axial pushing and subsequent (relative) rotation.

[0021] Here, during axial pushing, one element, for example, the threaded segment of the coupling element, i.e., the male threaded segment of the coupling element, "protrudes" into the other element (the mating element), for example, the discontinuity of the screw insert, until the elements subsequently rotate relative to each other (or vice versa, i.e., the mating element, for example, the female threaded segment of the screw insert, protrudes into the discontinuity of the element, for example, the coupling element), after which the male and female threaded segments engage with each other.

[0022] In short, the coupling element and screw insert can be joined easily and quickly by this rotational coupling and fixed together in a precise manner. The advantages of this connection, and therefore of the coupling element and / or screw insert, have been found to be more stable, better, and especially faster, with no play and no need for centering operations.

[0023] Here, it is even more convenient when the discontinuity between the thread segments is radially returned with respect to the thread segments. In illustrative terms, the discontinuity between the thread segments is, in the case of the coupling element, further radially inward than the thread segment, or, in the case of the thread insert, further radially outward than the thread segment. Axial insertion (of the element and the mating element), or the "penetration" (of the thread segment into the discontinuity) can be carried out more easily.

[0024] This rotational coupling can also be further simplified when the thread segments of one element, for example, the coupling element, and the discontinuities of the mating element, for example, the thread insert, are adapted to each other, particularly with respect to their circumferential ranges. That is, when the circumferential range of the thread segment (of one element) is equal to the circumferential range of the discontinuity (of the mating element), or, particularly, when it is smaller than the circumferential range of the discontinuity (of the mating element), the element and the mating element can move axially relative to each other more easily, or can penetrate into each other.

[0025] Particularly, it is also convenient when the pitch profile for all the depressions forming the partial thread turns (in the case of the coupling element or in the case of the thread insert) is the same.

[0026] In this way, it is possible to enable a snag-free coupling of the coupling element or the thread insert, for example, with the corresponding mating parts of the coupling element and the thread insert.

[0027] Expressed / explained in simplified or illustrative terms, the same pitch profile results in the same "stroke" being set for all the partial thread turns. Otherwise, different strokes may result in snagging examples or may prevent the coupling of the coupling element or the thread insert to the corresponding mating part.

[0028] However, it is possible to keep the same pitch profile constant, or to change it, especially to decrease it.

[0029] In particular, a reduced configuration of partial thread turns allows for (first) rapid engagement during the process of joining a coupling element or thread insert to its corresponding mating mater, for example, during the process of rotational coupling (see above).

[0030] Furthermore, (in the case of a coupling element or a threaded insert) it may be provided that recesses forming partial thread turns are formed so as not to form common thread turns. That is, in descriptive or simplified terms, all recesses or partial thread turns are not on a (hypothetical continuous) general helical line.

[0031] Furthermore, (in the case of connecting elements or screw inserts) it can also be advantageous for gaps to be formed between the partial thread turns of the thread segments.

[0032] In descriptive or simplified terms, the partial thread turns of a thread segment are not directly adjacent to each other in the axial direction; rather, in each case, there is a recess between the two partial thread turns that is wider than the partial thread turns themselves.

[0033] Thus, when connecting a coupling element or a screw insert to a corresponding mating part, the male thread in the case of the coupling element, or the female thread in the case of the screw insert, can be more easily engaged with the corresponding female thread or corresponding male thread of the mating part.

[0034] In particular, (in the case of connecting elements or screw inserts) it is advantageous from a manufacturing standpoint if at least two or more, especially all screw thread segments, are of the same shape.

[0035] Preferably, three thread segments, uniformly distributed in the radial and circumferential direction, may be provided, respectively, on the outer surface of the journal or on the inner surface of the recess. It is also possible to provide four or more thread segments, uniformly distributed in the radial and circumferential direction.

[0036] These thread segments may preferably be arranged at uniform, angular intervals.

[0037] In that case, this may also be applied accordingly to discontinuities on the journal or on the inner surface of the recess.

[0038] Furthermore, it may also be provided that a recess having an internal thread is provided in the journal that forms the first connection / connection region of the coupling element.

[0039] For example, this recess may be provided to connect the coupling element to another alternative partner, such as a threaded rod, instead of via a threaded segment on the journal surface, such as the one provided by the 3D probe in (Patent Document 1). Thus, the "original" coupling function of the coupling element via the threaded segment on the journal surface does not need to be omitted, and the "original" coupling function is supplemented by further coupling functions, to put it in simplified terms. Thus, the coupling element can be used universally; that is, in descriptive terms, the interface is open, i.e., it is compatible with multiple 3D probes.

[0040] Furthermore, an additional journal forming a second connection / bonding region may be provided on the opposite side of the bonding element. This additional journal may also have an additional recess. This additional recess may, for example, serve to receive a probe tip / probe insert. For example, the probe insert / probe tip may be screwed in and / or bonded therein.

[0041] Therefore, for example, the sleeve of the probe insert may be bonded to the further recess.

[0042] It is also convenient that a radially extending contact surface for axial surface contact (also simply called surface contact) be provided on the coupling element, or in the case of a coupling element. This may be oriented in particular towards the journal end of the journal forming the first connection / coupling region, and may be provided so as to be on the corresponding surface on the coupling arm / measuring shaft.

[0043] The coupling element may also have a substantially cylindrical subsection, on which a radially outward bulging bead is formed, running at least partially, and in particular completely, in the radially circumferential direction for radial centering (also simply called centering, for example, for centering the coupling element within a recess into which the coupling element of a coupling arm / measuring shaft is received).

[0044] This bead may be formed on the outer surface of the journal, particularly after the journal forming the first connection / joining region, and especially between the surface contact and the journal forming the first connection / joining region.

[0045] Furthermore, the connecting element may also provide subsections whose outer cross-section is non-circular. This non-circular configuration may be formed in particular by a region located further inward in the radial direction and a region located further outward in the radial direction.

[0046] Here, geometric shapes and cross-sections that deviate from a circle may be considered "non-circular."

[0047] Therefore, it is also advantageous that the inner surface of the recess of the coupling arm / measuring shaft that can receive or receives the coupling element has a form complementary to a non-circular configuration, in particular, that it also has regions located further inward in the radial direction and regions located further outward in the radial direction.

[0048] Therefore, in that case, when the coupling element is received by the coupling arm / measuring shaft, the coupling element is pushed into its recess and then can rotate relative to the coupling arm / measuring shaft. Here, if a radially outward region of the coupling element, or a subsection of the coupling element, abuts against a radially inward region of the coupling arm / measuring shaft, or the recess of the coupling arm / measuring shaft, or the inner surface of the recess of the coupling arm / measuring shaft, the coupling element and the coupling arm / measuring shaft (i.e., play is obtained from the pairing) are fixed relative to each other and can therefore be centered relative to each other.

[0049] It may also be advantageous if the screw insert has a journal on the opposite side that forms a second connection / connection region and has male threads formed on its outer surface, or if the screw insert has a hole on the opposite side that forms a second connection / connection region 120 and has an inserted (hex socket) thread.

[0050] This male thread, or this thread or its (male) thread, makes it possible to screw, for example, a screw insert into a female thread provided on a coupling arm.

[0051] Furthermore, in the case of a screw insert, a reduced-diameter, substantially cylindrical intermediate region may be provided between the first connection / connection region and the second connection / connection region. This allows the screw insert to have a certain degree of flexibility, enabling it to compensate for any errors that may occur.

[0052] Axial surface contact and / or centering may also be provided in the case of screw inserts. In other words, the screw insert may be provided with a radially extending contact surface for axial surface contact, or a substantially cylindrical subsection for radial centering (for example, for centering the screw insert in a recess of the coupling arm / measuring shaft into which the screw insert is received), both of which are particularly for contact and / or centering with respect to the measuring shaft / coupling arm.

[0053] In the improved configuration, the radially elastic structure can also be provided on the outer surface of the screw insert, particularly in the region of the first connection / joining area.

[0054] Furthermore, it may be advantageous for the axial elastic structure to be formed by spring clamping elements ("clips"), as this simplifies manufacturing.

[0055] Therefore, in that case, it may also be advantageous to form a structure on the inner surface of the recess of the coupling arm / measuring shaft that can receive or receive a screw insert, a structure that can engage the radially elastic structure on / of the screw insert by detent action (detent engagement).

[0056] Furthermore, since it is easier to manufacture, it may be advantageous for the (detent engagement) structure to be formed by radial circumferential grooves on the inner surface of the recess of the coupling arm / measuring shaft.

[0057] Therefore, these simple structural elements of the axial elastic structure of the screw insert and / or the (detent engagement) structure of the coupling arm / measuring shaft make it possible for the coupling arm / measuring shaft to receive and securely hold the screw insert in a simple manner.

[0058] In some cases, it may also be advantageous to form the screw insert together with means for fixing its rotation relative to the coupling arm / measuring shaft.

[0059] The coupling assembly according to the present invention provides coupling elements and screw inserts. Both may be formed in particular the configuration described.

[0060] Here, it is particularly advantageous that the thread segments of the connecting element and the thread segments of the thread insert are formed as corresponding female / male threads that can be screwed together (see above for rotational coupling).

[0061] The discontinuities in the case of connecting elements and screw inserts may also be adapted to fit each other (see above for rotational couplings).

[0062] In this case, the connection between the coupling element and the threaded insert is performed, in particular, by a “rapid” rotational coupling (see above), i.e., by axial insertion of the coupling element into the threaded insert and subsequent “relative” rotation.

[0063] Therefore, it is particularly advantageous that the coupling elements and / or screw inserts, or coupling assemblies, can be used to receive the probe tip of a probe measuring device, especially a 3D probe, thus enabling easy and rapid mounting (to the probe measuring device) or replacement (in case of replacement) of the probe tip.

[0064] The probe measuring device according to the present invention provides (at least) a screw insert and a coupling arm / measuring shaft in the configuration described, wherein the screw insert and the coupling arm / measuring shaft are connected to each other, in particular by being screwed together or formed as an integral structure.

[0065] In particular, this connection between the threaded insert and the coupling arm / measuring shaft may be achieved by a threaded insert having a journal on which a male thread is formed on its outer surface, forming a second connection / coupling region on the opposite side, and a coupling arm providing a female thread. In this case, the male thread of the threaded insert and the female thread of the coupling arm can be screwed together.

[0066] Further probe measuring devices according to the present invention may also include, in particular, coupling elements in the configuration described, screw inserts in the configuration described, probe inserts in particular having probe balls, pins, and sleeves, and coupling arms / measuring shafts, wherein the probe inserts are connected to the coupling arms / measuring shafts by coupling elements and by screw inserts connected to coupling elements.

[0067] Furthermore, in the case of a probe measuring device, it may also be provided that the threaded segments of the coupling element and the threaded segments of the threaded insert are formed as corresponding female / male threads that can be screwed together.

[0068] Each discontinuity may also be adapted to fit one another, thereby allowing the coupling elements and threaded inserts to be connected to each other by rotational coupling (see above).

[0069] As an alternative to the coupling element according to the present invention having thread segments, it is also possible to provide a (further) coupling element having a journal on one end which forms a first connection / coupling region and on its outer surface which a (continuous or uninterrupted) multi-turn male thread is formed (instead of (multiple) thread segments (separated by discontinuities)).

[0070] This alternative coupling element may also be improved by the described improvements to the coupling element, particularly having thread segments such as recesses with female threads or further recesses with further female threads, surface contacts, or centering means.

[0071] The advantage of this alternative coupling element having a multi-turn thread is that, in particular, such a coupling element allows for a greater axial feed / stroke (compared to a single-turn thread) for the same rotation angle when the coupling element is screwed together by the multi-turn thread, for example in a probe measuring device, thereby allowing the coupling element to be screwed together more quickly than conventional single-turn threaded components.

[0072] Furthermore, if the connection of the probe insert is achieved by such an alternative coupling element having a multi-turn thread, in the case of a probe measuring device, then the probe insert can be changed or replaced in a shorter time.

[0073] The above description of the advantageous configurations of the present invention may, in some cases, include a number of features shown together in combinations of individual subclaims. However, these features may be considered individually for convenience, or they may be combined to form further meaningful combinations.

[0074] Even if certain terms are used singular or with a number in this specification or in the claims, the scope of the invention is not intended to be limited to singular or with respect to those terms. Furthermore, the words "a" or "an" should be understood as indefinite articles, not numerals.

[0075] The above-mentioned characteristics, features, and advantages of the present invention, as well as the methods by which they are realized, will be more clearly and distinctly understood with the following description of exemplary embodiments of the present invention, which will be discussed in more detail with the drawings / figures (identical parts / components and functions are indicated by the same reference symbols in the drawings / figures).

[0076] The exemplary embodiments are helpful in describing the invention and do not limit the invention to combinations of features including the functional features specified therein. Furthermore, for this purpose, preferred features of each exemplary embodiment may also be expressed independently, taken from one exemplary embodiment, introduced into another exemplary embodiment to complement another exemplary embodiment, and / or combined with any of the claims. [Brief explanation of the drawing]

[0077] [Figure 1] The probe lever having a probe insert, coupling element, screw insert, and coupling arm / measuring shaft is shown in an embodiment of the present invention. [Figure 2] (Figures 2-1, 2-2, and 2-3) show the coupling element of the probe lever of a probe measuring device according to an embodiment of the present invention. [Figure 3] (Figures 3-1, 3-2, and 3-3) show the screw insert of the probe lever of a probe measuring device according to an embodiment of the present invention. [Figure 4] This shows a cross-section of a probe lever having a probe insert, coupling element, screw insert, and coupling arm / measuring shaft, according to an embodiment of the present invention. [Figure 5] A probe lever having a probe insert, coupling element, screw insert, and coupling arm / measuring shaft is shown in a probe measuring device according to a further embodiment of the present invention. [Figure 6] (Figures 6-1, 6-2, and 6-3) show the screw insert of the probe lever of a probe measuring device according to a further embodiment of the present invention. [Figure 7] This shows a cross-section of a probe lever with a fixing coupling element, according to a further additional embodiment of the present invention. [Figure 8] This shows a cross-section of a probe lever with a fixing coupling element, according to a further additional embodiment of the present invention. [Figure 9] Further embodiments of the present invention show a probe measuring device having a probe insert, a coupling element, a screw insert, and a probe lever having a coupling arm / measuring shaft. [Figure 10] Detailed diagrams of the coupling element, screw insert, and coupling arm / measuring shaft of a probe measuring device according to further embodiments of the present invention are shown. [Figure 11] A cross-section of a probe measuring device labeled in Figure 9, according to a further embodiment of the present invention, is shown. [Modes for carrying out the invention]

[0078] - 3D probe insert / tip 8 by rotational coupling for 3D probe 2 (Figures 1-4) Unless otherwise explicitly defined, terms such as axial and radial directions used herein should be understood to refer to the measurement axis 82 of the 3D probe 2.

[0079] The 3D probe 2 comprises a housing 4 (not shown in the figures) in which a probe lever 6 (see Figures 1 and 4) is guided so as to be displaceable in the direction of a measuring axis 82 defined by the housing 4.

[0080] Furthermore, the probe lever 6 is guided on the housing 4 by a universal joint 86 in the form of a ball joint 86 so as to be pivotable in all directions around a pivot point located on the measuring axis 82, and the probe lever is elastically preloaded by a return spring (not shown in the figure).

[0081] As shown in Figures 1 and 4, the probe lever 6 has a probe insert / probe tip 8 that protrudes from the housing, and its free probe end, formed by a probe ball 10, defines a probe reference point on the measuring axis 82 when the probe lever 6 is in the resting position.

[0082] As shown in Figures 1 and 4, the probe lever 6 further comprises a coupling arm 80 that protrudes from a circular cylindrical guide opening (not shown in the figures) central to the measuring axis 82 of the housing 4, in the opposite direction to the probe insert 8 with respect to the pivot point, or in the opposite direction to the direction 84 toward the probe tip 8.

[0083] As shown in Figures 1 and 4, the probe insert 8, which has a (steel) pin 12 that receives the probe ball 10 by a welded connection and a (ceramic) sleeve 14 sequentially connected to the pin 12, is screwed onto the coupling arm 80 by a coupling assembly 216 having a coupling element 16 (see Figure 2) and a screw insert 116 (see Figure 3) connected to the coupling element 16, in addition to the probe ball 10.

[0084] For this purpose, as will be described in more detail with reference to Figure 2, the (mounted) coupling element 16 (in this case) has a recess 26b in the form of an axial hole at its end pointing in the direction 84 of the probe tip 8, which is open on one side (end side) and serves to receive the sleeve 14 of the probe insert 8.

[0085] As shown in Figure 2 (detailed view of the connecting element 16, Figures 2-1, 2-2, 2-3), the connecting element 16 has a journal 24a at one end that forms a first connection / connecting region 18.

[0086] This journal 24a forms thread segments 28 on its outer surface 60, which are identical in themselves and in this case three, are in the form of male thread components 30, and are not adjacent to each other in the radial-circumferential direction 62, and are uniformly distributed in the radial-circumferential direction 62, and all of its partial thread turns 30 have the same slightly decreasing pitch profile 68, or less, the same slightly decreasing pitch 68.

[0087] That is, as shown in Figure 2, in the radial-circumferential direction 62, three threadless regions or sections are formed between the three thread segments 28 (on the outer surface 60 of the journal in the case of the coupling element 16), which are then arranged to be uniformly distributed in the radial-circumferential direction 62 (alternating with the thread segments 28), and are hereafter referred to as discontinuities 32 for abbreviated purposes, in this case in the form of smooth partial cylinder surfaces / shells.

[0088] Here, as can be seen from Figure 2, the three discontinuities 32 are formed such that, in the radial-circumferential direction 62, they are slightly longer than the three thread segments 28 in each case, and are located further inward in the radial direction, as also shown in Figure 2, or are radially reversed relative to the thread segments 28.

[0089] Furthermore, as shown in Figure 2, the journal 24a of the coupling element 16, which has a male threaded component 30, has an axial recess 26a that is open on one side (end side) and has an axial hole in which a female thread 34 is provided.

[0090] Furthermore, as shown in Figure 2, an additional journal 24b forming a second connection / joining region 20 is provided on the joining element 16, opposite to the journal 24a having a threaded segment 28 or male threaded component 30.

[0091] The further journal 24b also provides a recess 26b in the form of an axial hole, which is open on one side (end side) and serves to receive the sleeve 14 of the probe insert 8 (as shown in Figures 1 and 4). That is, the sleeve 14 of the probe insert 8 is bonded to this recess 26b.

[0092] Furthermore, as shown in Figure 2, a radially extending contact surface 36 on the coupling element 16, oriented in the direction of the journal 24a having a thread segment 28 or male thread component 30, is provided on a radially outward extending flange-like projection 42 for axial surface contact (also simply called surface contact) with the mating surface 44 on the coupling arm 80.

[0093] As shown in Figure 2, the flange-like projection 42 has grooves 46 on its outer surface to allow for easier gripping of the flange-like projection 42. Corresponding grooves 48 are also formed on the outer surface of the further journal 24b (again, to allow for easier gripping).

[0094] Furthermore, the coupling element 16 provides a substantially cylindrical subsection 38 axially between the journal 24a having thread segments 28 and male thread components 30 and the flange-like projection 42 that provides surface contact, and a radially outward bulging bead 40 is formed on its outer surface, running radially around the circumference and acting for radial centering (see Figures 1 and 4) (also simply called centering) of the coupling element 16 within the coupling arm 80.

[0095] Figure 3 shows the screw insert 116 in detail (see Figures 3-1, 3-2, and 3-3).

[0096] As shown in Figure 3, the screw insert 116 also provides a first connection / connection region 118 at one end.

[0097] The first connection / connection region 118 has an axial recess 124 in the form of an axial hole with one side (end side) open, and on the inner surface 70 of the axial recess 124, there are several, in this case three, thread segments 126 that are not adjacent to each other in the radial-circumferential direction 62 and are uniformly distributed in the radial-circumferential direction 62, and are identical in themselves, and are in the form of female thread components 128, and all of the partial thread turns 128 have the same slightly decreasing pitch profile 68, or less, the same slightly decreasing pitch 68.

[0098] That is, as shown in Figure 3, in the radial-circumferential direction 62, three threadless regions or threadless sections are formed between the three thread segments 126 (on the inner surface 70 of the recess in the case of the thread insert 116), and they are arranged to be uniformly distributed in the radial-circumferential direction 62 (alternating with the thread segments 126), and hereafter referred to again as discontinuous portions 130 for the sake of abbreviation, in this case in the form of smooth partial cylinder surfaces / shells.

[0099] As can be seen in Figure 3, in each case, the three discontinuities 130 are slightly longer than the three thread segments 126 in the radial-circumferential direction 62, and are located further outward in the radial direction, or are turned back radially relative to the thread segments 126, as also shown in Figure 3.

[0100] In short, the first connection / connection region 118 of the screw insert 116 is formed as a complementary and connectable mating / opposing element to the first connection / connection region 18 of the connecting element 16, that is, the recess 124 of the screw insert 116 having a thread segment 126 is formed as a complementary and connectable mating / opposing element to the journal 24a of the connecting element 16 having a thread segment 28.

[0101] As described by these complementary elements, the coupling element 16 and the screw insert 116 can be easily and quickly connected to each other by rotational coupling.

[0102] Furthermore, as shown in Figure 3, a journal 122 forming a second connection / joining region 120 is provided on the screw insert 116 on the opposite side of the recess 124 having a thread segment 126 or female thread component 128.

[0103] A male thread 134 is provided on the outer surface 140 of the journal 122, which allows the screw insert 116 to be screwed into the coupling arm 80 (the female thread 88 of the coupling arm 80) (see Figures 1 and 4).

[0104] Furthermore, as shown in Figures 3 (and 4), similar to the coupling element 16, the screw insert 116 is provided with a radially extending abutment surface 136 on a radially outwardly extending flange-like projection 142, which is oriented toward the journal 122 having the male thread 134, and this abutment surface serves for axial abutment against the mating surface 144 on the coupling arm 80.

[0105] Furthermore, the threaded insert 116 provides a substantially cylindrical subsection 138 for radial centering within the coupling arm 80, axially between the journal 122 having a male thread 134 and a flange-like projection 142 that provides contact.

[0106] As shown in Figure 3, the screw insert 116 also has a reduced diameter, substantially cylindrical intermediate region 132 in the axial direction between the first connection / connection region 118 and the second connection / connection region 120, or in the axial direction between the flange-like projection 142 of the screw insert 116 and the first connection / connection region 118. This allows the screw insert 116 to have a certain degree of flexibility to compensate for any errors that may occur.

[0107] The probe insert 8 may be mounted using a threaded insert 116 that is screwed into the coupling arm 80.

[0108] For this purpose, the screw insert 116 can be screwed into the coupling arm 80 (the female thread 88 of the coupling arm 80) by a male thread 134 provided on the outer surface 140 of the journal (see Figures 1 and 4).

[0109] To secure the probe insert 8, connected to the coupling element 16 by the sleeve 14, to / on the coupling arm 80 (see Figures 1 and 4), the journal 24a of the coupling element 16, having a threaded segment 28 with a male threaded component 30, is axially introduced / pushed into the recess 124 of the threaded insert 116, having a threaded segment 126 with a female threaded component 128 (in particular, until the axial planar contact surface 36 contacts the mating surface 44 of the coupling arm 80), the threaded segment 28 of the coupling element 16 protrudes into the discontinuity 130 of the threaded insert 116 (or vice versa (32 / 126)), and is then fixed by "relative rotation" (where the male threaded component 30 and female threaded component 128 of the threaded segments 28, 126 engage with each other), thereby coupling or holding / fixing (rotational coupling).

[0110] This push-and-turn procedure performed while attaching the probe insert 8 to the 3D probe 2, namely the rotational coupling of the coupling element 16 and the threaded insert 116, does not require the cumbersome screw connection work using its centering element and threaded rod, as required in the case of the 3D probe (Patent Document 1), and therefore enables easy and rapid replacement or quick and easy attachment of the probe insert 8 to the 3D probe 2.

[0111] - 3D probe insert / tip 8 by rotational coupling for 3D probe 2, having a screw insert 116 as a "clip" (Figures 5-6) Similarly, expressions used herein, such as axial and radial directions, should be understood to refer to the measurement axis 82 of the 3D probe 2 unless otherwise explicitly defined.

[0112] Figure 5 shows the probe lever 6 of the 3D probe 2, which has a probe insert 8, a coupling element 16, a coupling arm / measuring shaft 80, and an alternative screw insert 116.

[0113] Figure 6 shows this alternative threaded insert 116 in detail (in Figures 6-1, 6-2, and 6-3).

[0114] The probe insert 8 and coupling element 16 are identical in form to those of the above embodiments (shown in Figures 1-4). The coupling arm / measuring shaft 80 and threaded insert 116 also substantially correspond to those of the above embodiments, particularly with respect to the rotational coupling of the coupling element 16 and the threaded insert 116.

[0115] The embodiment of the probe lever described below (with reference to Figures 5-6) differs from the probe lever 6 described above (with reference to Figures 1-4) only in terms of retaining the screw insert 116 of the coupling arm / measuring shaft 80.

[0116] For the substantial agreement between the two embodiments, descriptions of identical elements in both embodiments are omitted here (below) for simplicity, and refer to the descriptions of the embodiments above. In particular, identical parts / components and functions are indicated by the same reference symbols in the drawings / figures.

[0117] As shown in Figures 5 and 6, the alternative screw insert 116 has a radially elastic structure 148 on the outer surface 146 of the screw insert 116, the structure being formed therein in the region of the first connection / bonding region 118.

[0118] Here, as shown in Figure 6, the axial elastic structure 148 is formed by (in this case, three) spring clamp elements 150 ("clips").

[0119] Next, as also shown in Figure 5, a detent engagement structure 94 (in this case, in the form of a radially circumferential groove 96 on the inner surface 92 of the recess 90 of the coupling arm / measuring shaft 80 that receives the screw insert 116) is formed on the inner surface 92 of the recess 90 of the coupling arm / measuring shaft 80, and the radially elastic structure 148 or the spring clamp element 150 can be engaged in the groove 96 by detent action.

[0120] Therefore, these simple structural elements, the radially elastic structure 148 or spring clamp element 150 of the screw insert 116 and the (detent engagement) structure 94 or groove 96 of the coupling arm / measuring shaft 80, enable the coupling arm / measuring shaft 80 to receive and securely hold the screw insert 116 in a simple manner.

[0121] - 3D probe insert / tip 8 having a coupling element 16 fixed to the coupling arm / measuring shaft 80 (Figures 7 and 8) Similarly, expressions used herein, such as axial and radial directions, should be understood to refer to the measurement axis 82 of the 3D probe 2 unless otherwise explicitly defined.

[0122] Figures 7 and 8 show cross-sectional views of embodiments of the coupling element 16 that further provide fixation to the coupling arm / measuring shaft 80 by the surface of the coupling element 16, or to a recess 90 of the coupling arm / measuring shaft 80 (received by the coupling arm / measuring shaft 80) (the coupling element 16 may be designed according to the above embodiments, or otherwise, as well as the coupling arm / measuring shaft 80 that receives the coupling element 16).

[0123] For this purpose, as shown in Figures 7 and 8, such a connecting element 16 has a subsection 38, and its outer circumference has a non-circular cross-section. This non-circular configuration is formed by a region 50 located further inward in the radial direction and a region 52 located further outward in the radial direction, as shown in Figures 7 and 8 (in both cases).

[0124] In this case, the "non-circular" sub-region 38 is positioned on each connecting element (as shown in Figures 7 and 8) between the surface contact 36 and the journal 24a that forms the first connection / joining region 18 (see, for example, Figure 2).

[0125] Figure 7 shows the connecting element 16, in which case the outer perimeter of the sub-region 38 has three arcs 54 that are connected to each other in cross-section and are "relatively flat," i.e., the radius of curvature of the arcs is greater than half the diameter of the circle, in order to form a non-circular, i.e., a region 50 located further inward in the radial direction and a region 52 located further outward in the radial direction.

[0126] Figure 8 shows a similar connecting element 16, in which the perimeter of the sub-region 38 connects three arcs 54 (of a general circle, i.e., having equal radii) in cross-section via linear chords 56 located between them.

[0127] Corresponding to these "non-circular" sub-regions 38 of the coupling element 16, correspondingly complementary "non-circular" structures are formed on the inner surface 92 of the recess 90 of the coupling arm / measuring shaft 80. That is, in this case, the inner surface 92 similarly has a region 50 located further inward in the radial direction and a region 52 located further outward in the radial direction.

[0128] Figure 7 shows the coupling arm / measuring shaft 80, whose recess 90 has, in cross-section, three interconnected "relatively flat" arcs 54 on its inner surface 92, which are slightly larger (relative to the sub-region 38 of the coupling element 16) (therefore, in the case of "concentric" arrangement / direction of the coupling arm / measuring shaft 80 and the coupling element 16, a certain amount of play (required for relative rotation (fixation)) can be formed between the coupling arm / measuring shaft 80 and the coupling element 16).

[0129] Figure 8 shows a coupling arm / measuring shaft 80, the recess 90 having three interconnected arcs 54 on its inner surface 92 in cross-section (three curves of the same circle having offset center points (starting at the point of the arc 54 marked with circle K)).

[0130] Therefore, in both cases shown in Figures 7 and 8, a region 50 located further inward in the radial direction and a region 52 located further outward in the radial direction are formed on the outer surface of the subsection 38 of each coupling element 16 and on the inner surface 92 of the recess 90 of each coupling arm / measuring shaft 80.

[0131] Therefore, when the coupling element 16 is received by the coupling arm / measuring shaft 80, the coupling element can be pushed into the recess 90 of the coupling arm / measuring shaft 80 and then rotated relative to the coupling arm / measuring shaft 80. Here, if a radially outward region 52 of the coupling element 16, or within / of the subsection 38 of the coupling element 16, abuts against a radially inward region 50 of the coupling arm / measuring shaft 80, or within the recess 90 of the coupling arm / measuring shaft 80, or on the inner surface 92 of the recess 90 of the coupling arm / measuring shaft 80, the coupling element 16 and the coupling arm / measuring shaft 80 are fixed relative to each other.

[0132] - 3D probe insert / tip 8 by rotational coupling for 3D probe 2 (Figures 9-11) Similarly, expressions used herein, such as axial and radial directions, should be understood to refer to the measurement axis 82 of the 3D probe 2 unless otherwise explicitly defined.

[0133] Figure 9 shows the probe lever 6 of the 3D probe 2, which has a probe insert 8, a coupling element 16, an alternative (slightly modified) coupling arm / measuring shaft 80, and an alternative (slightly modified) threaded insert 116.

[0134] Figure 10 shows details of the 3D probe 2 having an alternative screw insert 116.

[0135] Figure 11 shows a cross-section along the cutting line indicated by FF in Figure 9, in the case of the 3D probe 2 having an alternative screw insert 116.

[0136] The probe insert 8 and coupling element 16 are identical in form to those of the above embodiments (shown in Figures 1-4). The coupling arm / measuring shaft 80 and threaded insert 116 also substantially correspond to those of the above embodiments, particularly with respect to the rotational coupling of the coupling element 16 and threaded insert 116 (see thread segments 28 and 126 (see Figures 2 and 3)).

[0137] The embodiment of the probe lever 6 described below (as shown in Figures 9-11) differs from the probe lever 6 described above (as shown in Figures 1-4) only in terms of holding the screw insert 116 of the coupling arm / measuring shaft 80 and the axial contact of the axial contact surface 36 of the coupling element 16.

[0138] For the substantial agreement between the two embodiments, descriptions of identical elements in both embodiments are omitted here (below) for simplicity, and refer to the descriptions of the embodiments above (within Figures 1-4) for further information. In particular, identical parts / components and functions are indicated by the same reference symbols in the drawings / figures.

[0139] In particular, as shown in Figures 9 and 10, the alternative threaded insert 116 forms a second connection / connection region 120 on the threaded insert 116 opposite the recess 124 having a threaded segment 126 or female thread component 128, and provides a hole 152 having an inserted (hex socket) thread 122.

[0140] The screw insert 116 is screwed into the coupling arm 80 (the female thread 88 of the coupling arm 80) by this (hexagonal socket) screw 122 and its male thread 134 (see Figures 9 and 10).

[0141] Furthermore, as also shown in Figures 9 and 10, the end opposite the screw insert 116, having the hole 152 and the thread 122, forms a radially extending contact surface 136 for axial contact with the mating surface 144 on the coupling arm 80.

[0142] Furthermore, the screw insert 116 here provides a substantially cylindrical subsection 138 for radial centering in the coupling arm 80.

[0143] As also shown in Figures 9 and 10, the radially extending contact surface 36 of the radially outward-extending flange-like projection 42 of the coupling element 16, oriented toward the journal 24a having the thread segment 28 or male thread component 30, is here supported on the mating surface 44 on the thread insert 116 (surface contact (see above)) (see this surface contact 36 / 44 between the coupling element 16 and the coupling arm 80 according to the embodiment shown in Figures 1-4).

[0144] Next, as shown in Figures 9 and 10, (further) surface contact occurs between the screw insert 116 and the coupling arm 80 via the planar contact surface 156 on the screw insert 116 and the mating surface 154 on the coupling arm 80.

[0145] In short, in descriptive terms, according to the embodiment of the probe lever 6 shown in Figures 1-4, surface contact occurs between the coupling element 16 and the coupling arm 80 by a flange-like structure 158 integrally provided on the coupling arm 80 (see surface contact 44 / 36 in Figure 4), and according to the embodiment of the probe lever 6 shown in Figures 9-11, this flange-like structure 158 is integrally formed on a screw insert 116, thereby first creating a first surface contact 44 / 36 between the coupling element 16 and the screw insert 116, and then creating a second surface contact 154 / 156 between the screw insert 116 and the coupling arm 80.

[0146] Therefore, these simple structural elements on the screw insert 116 also make it possible for the coupling arm / measuring shaft 80 to receive and securely hold the screw insert 116 in a simple manner.

[0147] Regardless of the exemplary embodiments described above, particularly those shown in Figures 1-4, 7-8, and 9-11, elements of the exemplary embodiments may be combined with elements of other exemplary embodiments.

[0148] For example, a separating screw 122 (according to the embodiments shown in Figures 9-11) and a screw insert 116 having contact surfaces 44 / 36 (according to the embodiment shown in Figure 4) may be combined with each other in the case of a further probe lever 6 of the 3D probe 2.

[0149] In this combined embodiment, if the screw 112 is not fully tightened, the screw insert 116 may wobble slightly, and this does not affect the centering of the coupling arm 80.

[0150] While the present invention has been described in further detail using preferred exemplary embodiments, the invention is not limited to the disclosed examples, and other modifications can be derived therefrom without departing from the scope of protection of the invention. [Explanation of Symbols]

[0151] List of reference symbols 2. Probe measuring device, 3D probe 4 Housing 6. Probe lever, probe arm 8 probe inserts, probe tips 10. Probe ball (probe reference point) (welded to steel pin 12) 12 (steel) pins (bonded to ceramic sleeve 14) 14 (Ceramic) Sleeve (Screw and bonded within the connecting element 16) 16. Coupling element (for quick coupling between probe insert 8 and coupling arm / measuring shaft 80, coupled to threaded insert 116) 18 First connection / connection region, first thread region (connected to thread insert 116) 20 Second connection / connection area, second threaded area (connects to probe insert / probe tip 8 or ceramic sleeve 14) 24a (threaded) journal (one end) (with thread segment 28 on top) 24b Further (threaded) journal (other end) (having a recess 26b for sleeve 14) 26a Further recess (within the first connection area 18, for a female thread 34 for threaded connection to the previous threaded rod) 26b Recess (within the second connection area 20, for sleeve 14) 28 Thread segment (for (quick) bonding to thread insert 116 (on journal 24a)) 30 recess, partial thread turn, male thread component (inside thread segment 28) 32. Discontinuity, recess (between screw thread segments 28) 34 Female thread (located in recess 26a of journal 24a, for threaded connection to the previous threaded rod) 36. Contact surface for axial contact (axial contact surface) 38. Approximately cylindrical subsection (for radial centering) 40 bead 42 Flange-shaped projection (with surface contact) 44 Opposing surface (on the connecting arm 80 / on the screw insert 116, relative to the planar contact surface 36) 46 Groove 48 Groove 50 Regions located further inward in the radial direction (non-circular structures) 52 Regions located further outward in the radial direction (non-circular structures) 54 arcs 56 strings 60 (Outer surface of Journal 24a) 62 Radial direction 68 Pitch Profile 70 Inner surface (inside recess 124) 80 connecting arms, measuring shafts 82 measuring axes 84. Direction of the probe tip 86 Adjustable / Ball Joint 88 Female thread 90 Recess (within the connecting arm 80, for the connecting element 16 and screw insert 116) 92 Inner surface (inside recess 90 (non-circular structure)) 94 (Detent Engagement) Structure 96 Radial Circumferential Grooves 116 Threaded insert (for quick coupling between probe insert 8 and coupling arm / measuring shaft 80, coupled to coupling element 16) 118 First connection / joining region, first threaded region (joined to joining element 16) 120 Second connection / connection area, second threaded area (connects to the connecting arm / measuring shaft 80), male thread (for threaded connection to the connecting arm / measuring shaft 80) 122 (Threaded) Journal or Screw (Having male threads 134 for threaded connection to / into the coupling arm / measuring shaft 80) 124 Recess (for the first connection area 118 (inside) and thread segment 126) 126 Threaded segment (for (quick) connection to coupling element 16) 128 Recess, partial thread turn, female thread component (inside thread segment 126) 130 Discontinuity, recess (between screw thread segments 126) 132 Diameter-reduced intermediate region (between the first connection / bonding region 118 and the second connection / bonding region 120 (flexibility)) 134 Male screw 136 Contact surface for axial contact (axial contact surface) 138. Approximately cylindrical subsection (for radial centering) 140 (Outer surface of journal 122 or thread 122) 142 Flange-shaped projection (with contact), contact 144 Opposing surface (on the connecting arm 80, relative to the contact surface 136) 146 Outer surface of screw insert 116 in the region of the first connection / joining area 148 Radially elastic structure 150 Spring Clamp Element 152 holes 154 Opposing surface (on the connecting arm 80, relative to the planar contact surface 156) 156 Contact surface (for axial contact on screw insert 116) 216 Joint assemblies, rotational joints FF cross section

Claims

1. In a coupling element 16 for receiving a probe tip 8 of a probe measuring device 2, particularly a 3D probe 2, the coupling element 16 has a journal 24a at one end that forms a first connection / coupling region 18, Multiple thread segments 28 that are not adjacent to each other in the radial circumferential direction 62 are formed on the outer surface 60 of the journal 24a. Characterized by, Joining element 16.

2. In any case, the thread segment 28 is formed by one or more recesses 30 that form one portion of a thread turn (partial thread turn). It is characterized by the following: The pitch profile 68 is the same in all recesses 30 that form the partial thread turns. The connecting element 16 according to claim 1.

3. The aforementioned identical pitch profile 68 is constant in all cases. Characterized by, or The aforementioned identical pitch profile changes, in particular, decreases. Characterized by, The connecting element 16 according to claim 1 or 2.

4. The recess 30 that forms the partial thread turn does not form a common thread turn. Characterized by, A connecting element 16 according to any one of claims 1 to 3.

5. A gap is formed between the partial thread turns of the thread segment 28. Characterized by, A connecting element 16 according to any one of claims 1 to 4.

6. At least two, and in particular all, thread segments 28 are of the same form. Characterized by, A connecting element 16 according to any one of claims 1 to 5.

7. Three thread segments 28 are specifically arranged on the outer surface 60 of the journal 24a so as to be uniformly distributed in the radial circumferential direction 62. Characterized by, A connecting element 16 according to any one of claims 1 to 6.

8. A recess 26a having a female thread 34 is provided within the journal 24a that forms the first connection / coupling region 18. Characterized by, A connecting element 16 according to any one of claims 1 to 7.

9. At the other end, a second connection / connection region 20 is formed, and a further journal 24b having a further recess 26b is formed. Characterized by, A connecting element 16 according to any one of claims 1 to 8.

10. Radially extending contact surface 36 for axial contact Characterized by, A connecting element 16 according to any one of claims 1 to 9.

11. A substantially cylindrical subsection 38, wherein a radially outward bulging bead 40 is formed on the outer surface of the substantially cylindrical subsection 38, running at least partially, in particular, to completely enclose the radial circumference for radial centering. Characterized by, A connecting element 16 according to any one of claims 1 to 10.

12. A subsection 38, wherein the outer periphery of the subsection 38 is formed by a region 50 located further inward in the radial direction and a region 52 located further outward in the radial direction, the cross-section 38 Characterized by, A connecting element 16 according to any one of claims 1 to 11.

13. In a coupling element 16 for a probe tip 8 of a probe measuring device 2, particularly a 3D probe 2, the coupling element 16 has a journal 24a at one end that forms a first connection / coupling region 18, A multi-turn male screw is formed on the outer surface 60 of the journal 24a. Characterized by, Joining element 16.

14. In the probe measuring device 2, in particular the screw insert 116 for receiving the probe tip 8 of the 3D probe 2, A first connection / connection region 118 formed at one end, and in particular serving to connect to a connecting element 16 according to any one of claims 1 to 13, having a recess 124, wherein a plurality of non-adjacent thread segments 126 in the radial-circumferential direction 62 are formed on the inner surface 70 of the recess 124. Characterized by, Screw insert 116.

15. In any case, the thread segment 126 is formed by one or more recesses 128 that form one portion of a thread turn (partial thread turn). It is characterized by the following: The pitch profile 68 is the same in all recesses 128 that form the partial thread turns. The screw insert 116 according to claim 14.

16. The aforementioned identical pitch profile 68 is constant in all cases. Characterized by, or The aforementioned identical pitch profile changes, in particular, decreases. Characterized by, The screw insert 116 according to claim 14 or 15.

17. The recess 128 that forms the partial thread turn does not form a common thread turn. Characterized by, A screw insert 116 according to any one of claims 14 to 16.

18. A gap is formed between the partial thread turns of the thread segment 126. Characterized by, A screw insert 116 according to any one of claims 14 to 17.

19. At least two, and in particular all, thread segments 126 are of the same form. Characterized by, A screw insert 116 according to any one of claims 14 to 18.

20. Three thread segments 126 are specifically arranged on the inner surface 70 of the recess 124 so as to be uniformly distributed in the radial circumferential direction 62. Characterized by, A screw insert 116 according to any one of claims 14 to 19.

21. At the other end, a second connection / connection region 120 is formed, and a male thread 134 is formed on its outer surface 140, the journal 122, or At the other end, a second connection / connection region 120 is formed, and a hole 152 has an inserted (hexagonal socket) screw 122. Characterized by, A screw insert 116 according to any one of claims 14 to 20.

22. A reduced diameter, substantially cylindrical intermediate region 132 between the first connection / bonding region 118 and the second connection / bonding region 120 Characterized by, A screw insert 116 according to any one of claims 14 to 21.

23. Radially extending contact surface 136 for axial contact Characterized by, A screw insert 116 according to any one of claims 14 to 22.

24. Approximately cylindrical subsection 138 for radial centering Characterized by, A screw insert 116 according to any one of claims 14 to 23.

25. In particular, the radial elastic structure 148 on the outer surface 146 of the screw insert 116 in the region of the first connection / coupling region 118 It is characterized by, In particular, the radially elastic structure 148 is formed by a spring clamp element 150 ("clip") A screw insert 116 according to any one of claims 14 to 24.

26. In the coupling assembly 216 for the probe insert 8 of the probe measuring device 2, A connecting element 16 according to any one of claims 1 to 13, Screw insert 116 according to any one of claims 14 to 25 Characterized by, Coupling assembly 216.

27. The thread segment 28 of the connecting element 16 and the thread segment 126 of the thread insert 116 are formed as corresponding female / male threads that can be screwed together. Characterized by, The combined assembly 216 according to claim 26.

28. In the probe measuring device 2, particularly the 3D probe 2, A screw insert 116 according to any one of claims 14 to 25, Connecting arm / measuring shaft 80 It is characterized by, The screw insert 116 and the coupling arm / measuring shaft 80 are connected to each other, in particular, screwed together or formed as a single integrated structure. Probe measuring device 2.

29. In the probe measuring device 2, particularly the 3D probe 2, A connecting element 16 according to any one of claims 1 to 13, A screw insert 116 according to any one of claims 14 to 25, A probe insert 8, in particular a probe insert 8 having a probe ball 10, a pin 12, and a sleeve 14, Connecting arm / measuring shaft 80 and It is characterized by, The probe insert 8 is connected to the coupling arm / measuring shaft 80 by the coupling element 16 and the screw insert 116 connected to the coupling element 16. Probe measuring device 2.

30. The thread segment 28 of the connecting element 16 and the thread segment 126 of the thread insert 116 are formed as corresponding female / male threads that can be screwed together. Characterized by, The probe measuring device 2 according to claim 29.

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