Joint for accommodating a probe tip in a probe measurement device and probe measurement device

Abstract

The invention relates to a coupling element for accommodating a probe tip in a probe measurement device and to a probe measurement device. In order to be able to assemble a probe tip 8 at a probe measurement device 2 in a simple and quick manner, a coupling element 16 is provided which is formed at one end with a first connection / coupling region 18, or a screw insert 116 is provided at one end with a first connection / coupling region 118 having a recess 124, which first connection / coupling region is in particular for connecting with the coupling element 16. This shaft journal 24a of the coupling element 16 is formed on an outer surface 60 with a plurality of thread segments 28 which do not adjoin one another in the radial circumferential direction, or the recess 124 of the screw insert 116 is formed on an inner surface 70 with a plurality of thread segments 126 which do not adjoin one another in the radial circumferential direction.

Description

[0001] This invention relates to a device for housing a probe tip in a probe measuring apparatus. Connecting elements A device for housing a probe tip in a probe measuring apparatus. Screw insert A probe insert for use in a probe measuring device Connection components and one or more probe measuring device .

[0002] For example, a probe measuring device, such as a multi-axis probe measuring device (also simply referred to as a 3D detector), is known from WO 02 / 103282 A1. This probe measuring device allows distance measurement both in the direction of the measuring axis and laterally to the measuring axis.

[0003] This probe measuring device includes a housing on which a probe rod (sometimes simply referred to as a probe arm) is displaceably guided in the direction of a measuring axis defined by the housing. Furthermore, the probe rod is guided in a fully pivotable manner on the housing by means of a universal joint (e.g., in the form of a ball-and-socket joint in WO 02 / 103282 A1) about a pivot point on the measuring axis and is elastically preloaded by a return spring.

[0004] The probe rod has a probe insert (simply and intuitively, often also referred to as the probe tip) extending from the housing, the free probe end of which is composed of a probe ball defining a probe reference point on the measurement axis in the rest position of the probe rod.

[0005] The connecting arm of the probe rod (also known as the measuring axis of the probe rod) extends about the pivot point into the cylindrical guide opening of the housing, which is co-centered with the measuring axis, opposite to the probe insert.

[0006] The probe insert is screwed to the connecting arm by a centering element and a screwing assembly with a threaded rod having external threads. In addition to the probe ball, the probe insert also has a pin that accommodates the probe ball and a sleeve that is connected to the pin.

[0007] For this purpose, the probe insert (the sleeve of the probe insert) is held at the other end of the probe ball in a corresponding hole in the centering element facing the probe insert. The centering element has an internal thread at the other end of this hole, which engages with a threaded rod or with the external thread of the threaded rod. At the end of the threaded rod opposite the probe insert, the threaded rod is engaged with the internal thread of the connecting arm by means of the external thread on the threaded rod.

[0008] The measuring instrument, which is fixed to the housing, detects the position of the measuring axis or probe rod relative to the housing.

[0009] Improper use of this probe measuring device can damage the probe insert, for example, by causing it to break in the area of ​​the (ceramic) sleeve, which is formed of ceramic and serves as the rated break point. Therefore, the probe insert needs to be replaced or replaced.

[0010] The purpose of this invention is to provide a cost-effective and quickly replaceable connector for a probe insert in a probe measuring device.

[0011] This objective is achieved by a connecting element for receiving a probe tip in a probe measuring device, a screw insert for receiving a probe tip in a probe measuring device, a connecting assembly for a probe insert at a probe measuring device, and one or more probe measuring devices, having the features of the corresponding independent claims. Advantageous improvements of the invention are the subject of the dependent claims and the following description.

[0012] Unless otherwise expressly defined, the terms used (such as axial and radial) shall be understood with reference to the measurement axis of the probe measuring apparatus having the subject matter of this invention.

[0013] The connecting element according to the invention has a journal at one end forming a first connection / coupling region.

[0014] This journal has multiple threaded segments formed on its outer surface that are not adjacent to each other in the radial circumferential direction.

[0015] The screw insert according to the invention also has a first connection / coupling region at one end (especially for connection with a connecting element), the first connection / coupling region having a recess, on the inner surface of which a plurality of threaded segments not adjacent to each other in the radial circumferential direction are formed.

[0016] (Such) threaded segments (whether in the case of connecting elements or screw inserts) can here be formed by one or more recesses that respectively form part of the thread (sub-thread) (wherein such recesses or "raises" defining such sub-threads can be regarded as thread flanks and can be referred to as thread flanks).

[0017] In short, in the radial circumferential direction, between threaded segments, or on the outer journal surface (in the case of a connecting element) or on the inner recessed surface (in the case of a screw insert), an unthreaded region or unthreaded segment (hereinafter referred to as and simplified as an interruption) is formed, for example, in a generally smooth partial cylindrical surface / outer surface.

[0018] That is, (visually observed) on the journal surface or the inner surface of the recess, threaded segments (external threaded segments when visually observed at the journal of the connecting element; or internal threaded segments when visually observed in the inner recess of the screw insert) and unthreaded areas or interruptions alternate in the radial circumferential direction.

[0019] This has proven advantageous as a result that the corresponding mating part (e.g., the connecting element for the screw insert, or vice versa) for the connecting element or the screw insert can be easily and quickly connected to the connecting element or the screw insert, for example by (rapid) rotational connection, i.e., by axial insertion / plugging and then (torsional) rotation.

[0020] Here, (during axial insertion / plucking) the threaded segment of one element (e.g., a connecting element) or the external threaded segment of the connecting element "sinks" into the break of another element (the mating element), such as a screw insert (or conversely, the internal threaded segment of the mating element, such as a screw insert, sinks into the break of the element, such as the connecting element), until these threaded segments are subsequently twisted relative to each other, whereby the external threaded segment and the internal threaded segment engage with each other.

[0021] In short, the connecting elements and screw inserts can be quickly and easily joined together in this rotary connection and precisely preloaded to each other. This connection, and therefore the advantages of the connecting elements and / or screw inserts, have proven to be more stable, better, especially faster, and backlash-free and centered.

[0022] A further advantage here is that the interruption between threaded segments is radially further back than the threaded segments. To put it intuitively, the interruption between threaded segments (in the case of connecting elements) is radially more inward than the threaded segments, or (in the case of screw inserts) is radially more outward than the threaded segments. Axial insertion (of the element and mating element) or "sinking" (of the threaded segment into the interruption) can then be performed more easily.

[0023] This rotary connection can be further simplified by adapting the threaded segment of one element (e.g., the connecting element) and the interrupted portion of the mating element (e.g., the screw insert) to each other, particularly in terms of their circumferential extension. That is, the circumferential extension of the threaded segment (of one element) is equal to or particularly smaller than the circumferential extension of the interrupted portion (of the mating element), thus allowing the element and the mating element to be more easily displaced or recessed into each other axially.

[0024] What is particularly convenient is that (whether in the case of connecting elements or screw inserts) the pitch profile is the same in all recesses forming sub-threads.

[0025] This enables clamp-free connection between the connecting element or screw insert and its corresponding mating part, such as the connecting element and screw insert.

[0026] To express / explain in a simplified and intuitive way, the same "stroke" is produced at each sub-thread line / on each sub-thread line through the same pitch curve. Different strokes may cause clamping or make it difficult to connect the connecting element or screw insert to the corresponding mating part in other situations.

[0027] However, the same pitch curve itself can be constant or variable, especially decreasing.

[0028] In particular, when connecting elements or screw inserts are coupled to their corresponding mating parts, such as in rotary couplings (see above), the design of decreasing sub-thread lines enables rapid engagement (at the beginning).

[0029] Furthermore, it can be proposed that (whether in the case of connecting elements or screw inserts) the recesses forming sub-threads are designed so that they do not form a common thread. That is, to express it intuitively or in a simplified way, all recesses or sub-threads are not on a (hypothetical continuous) common helix.

[0030] Furthermore, it is convenient (whether in the case of connecting elements or screw inserts) to form gaps between the sub-threads of the threaded segment.

[0031] To put it simply, the sub-threads of a thread segment are not directly adjacent to each other in the axial direction, but rather there is a recess between two corresponding sub-threads that is wider than the sub-thread itself.

[0032] Therefore, when a connecting element or screw insert is connected to a corresponding mating part, the external thread (in the case of a connecting element) or the internal thread (in the case of a screw insert) can more easily find each other with the corresponding internal thread or the corresponding external thread of the mating part.

[0033] What is particularly advantageous in terms of manufacturing technology is that (whether in the case of connecting elements or screw inserts) at least two or more, especially all threaded segments, are designed identically.

[0034] Preferably, three threaded segments are arranged, particularly evenly distributed along the radial circumferential direction, on the outer surface of the journal or the recessed inner surface. Alternatively, four or more threaded segments, also particularly evenly distributed along the radial circumferential direction, may be provided.

[0035] Preferably, these threaded segments can also be arranged at the same angle.

[0036] Therefore, the corresponding content can also be applied to the interruption on the journal or the recessed inner surface.

[0037] Furthermore, it can be suggested that a threaded recess be provided in the journal forming the first connection / coupling area of ​​the connecting element.

[0038] This can, for example, be configured to connect a coupling element (instead of a threaded segment on the journal surface) to another alternative mating element (e.g., a threaded rod provided by a 3D detector from WO 02 / 103282 A1). Therefore, the “original” connection possibility of the coupling element via the threaded segment on the journal surface is not necessarily abandoned, which, in a simplified manner, complements another connection possibility. Thus, the coupling element has diverse applications. That is, intuitively, the interface is open or compatible with the 3D detector in multiple ways.

[0039] Furthermore, an additional journal forming a second connection / coupling area may be provided on the connecting element (at the other end of the connecting element). This additional journal may also be designed with an additional recess. This additional recess may, for example, be used to receive a probe tip / probe insert. This probe insert or probe tip may, for example, be screwed and / or glued.

[0040] Therefore, it could be proposed, for example, to bond the sleeve of the probe insert into this additional recess.

[0041] It is also convenient to provide a radially extending abutment surface (also simply referred to as a planar abutment portion) for axial planar contact on or at the connecting element. This can be oriented particularly toward the journal end of the journal forming the first connection / coupling area and can also be configured particularly for placement on a corresponding surface on the connecting arm / measuring shaft.

[0042] The connecting element may also have a generally cylindrical sub-section with a radially outwardly curved protrusion formed on the outer surface of the sub-section, which is at least partially (especially completely) surrounded in the radial circumferential direction for radial centering (also simply referred to as centering, for example for centering the connecting element in a recess in the connecting arm / measuring shaft, in which the connecting element is accommodated / accommodating the connecting element in the recess).

[0043] This protrusion can be formed, in particular, on the outer surface of the journal that forms the first connection / coupling area, especially between the planar abutment and the journal that forms the first connection / coupling area.

[0044] Furthermore, it can be proposed that the connecting element be provided with sub-segments whose outer circumference is non-circular in cross-section. This non-circularity can be formed, in particular, by regions located radially more inward and radially more outward.

[0045] Here, geometric shapes and cross-sections that differ from circles can be considered "non-circular".

[0046] Correspondingly, it is also convenient that the inner surface of the recess in the connecting arm / measuring shaft (which will / can accommodate the connecting element in the recess or the connecting element is accommodated in the recess) is designed to be complementary to the non-circular shape, and in particular, it also has a region that is radially more inner and a region that is radially more outer.

[0047] Therefore, if the connecting element is to be accommodated in the connecting arm / measuring shaft, then this connecting element can be pushed into the recess of the connecting arm / measuring shaft and then twisted relative to the connecting arm / measuring shaft. Here, if the radially outer region of the connecting element, or a sub-section of the connecting element, or a radially inner region of the connecting arm / measuring shaft, or in the recess of the connecting arm / measuring shaft, or on the inner surface of the recess of the connecting arm / measuring shaft, then the connecting element and the connecting arm / measuring shaft are preloaded (i.e., occupy clearance due to mating) and thus can also be centered relative to each other.

[0048] It is also advantageous for the screw insert to have a journal forming a second connection / coupling area at the other end, with external threads formed on the outer surface of the journal; or for the screw insert to have a hole forming a second connection / coupling area 120 at the other end, the hole having an inserted (hexagonal) screw.

[0049] By means of this external thread or this screw or its (external) thread, for example, the screw insert can be screwed into the connecting arm by means of the internal thread provided in the case of the connecting arm.

[0050] Alternatively, in the case of a screw insert, a generally cylindrical intermediate region with a narrower diameter can be provided between the first connection / coupling area and the second connection / coupling area. This intermediate region allows the screw insert to have corresponding flexibility in order to compensate for possible errors.

[0051] The screw insert may also include an axial plane abutment and / or a centering element. That is, in other words, it may be proposed that the screw insert has a radially extending abutment surface for axial abutment or a generally cylindrical sub-section for radial centering (e.g., for centering the screw insert in the recess in the connecting arm / measuring shaft), both of which are particularly used for abutment and / or centering relative to the measuring shaft / connecting arm.

[0052] Furthermore, a radial elastic structure may be provided on the outer surface of the screw insert, particularly in the area of ​​the first connection / coupling region.

[0053] Here, it is simple and can be further facilitated in terms of manufacturing technology by using a spring clamping element to form an axially elastic structure (“clamp”).

[0054] Correspondingly, it is also convenient to design a (locking) structure on the inner surface of the recess in the connecting arm / measuring shaft (in which the screw insert can be accommodated or the screw insert can be accommodated), and this radial elastic structure of the screw insert / screw insert can be locked in the locking structure.

[0055] Since it is simple and can be further facilitated in terms of manufacturing technology, the (locking) structure is designed in the recessed inner surface of the connecting arm / measuring shaft by means of radially surrounding grooves.

[0056] Therefore, by means of these simple structural elements (the axial elastic structure of the screw insert and / or the (locking) structure of the connecting arm / measuring shaft), the screw insert can be reliably accommodated and held in the connecting arm / measuring shaft in a simple manner.

[0057] It may also be convenient to design the screw insert to be anti-rotational relative to the connecting arm / measuring axis.

[0058] The connecting assembly according to the invention includes a connecting element and a screw insert. Both can be designed in particular according to the described design scheme.

[0059] What is particularly convenient here is that the threaded segments of the connecting elements and the threaded segments of the screw inserts are designed as corresponding, screwable internal / external threads (see above, for rotary connections)).

[0060] In the case of connecting elements and screw inserts, the corresponding interruptions can be adapted to each other (see above, for rotary connections).

[0061] The connection between the connecting element and the screw insert is thus achieved, in particular, by rapidly rotating the connection (see above), that is, by axially inserting the connecting element into the screw insert and then rotating it (twisting) with each other.

[0062] Therefore, it is particularly convenient to use connecting elements and / or screw inserts or connecting assemblies to accommodate the probe tip in the probe measuring device, especially the 3D detector, so that the probe tip can be easily and quickly assembled (in the probe measuring device) or replaced (at this probe measuring device).

[0063] The probe measuring device according to the invention (at least) includes a screw insert (especially according to the described design) and a connecting arm / measuring shaft, wherein the screw insert is interconnected with, especially screwed into, the connecting arm / measuring shaft, or is designed as an integral part thereof.

[0064] In particular, this connection between the screw insert and the connecting arm / measuring shaft can be achieved by having the screw insert have a journal forming a second connection / coupling area at the other end, with external threads formed on the outer surface of the journal, and the connecting arm having internal threads. Thus, the external threads of the screw insert and the internal threads of the connecting arm can be screwed together.

[0065] Another probe measuring device according to the invention may also include: a connecting element (especially according to the described design); a screw insert (especially according to the described design); a probe insert (especially a probe insert having a probe ball, a pin, and a sleeve); and a connecting arm / measuring shaft, wherein the probe insert is connected to the connecting arm / measuring shaft by means of the connecting element and the screw insert connected to the connecting element.

[0066] Furthermore, in the case of a probe measuring device, it can also be proposed that the threaded segments of the connecting element and the threaded segments of the screw insert are designed as corresponding, screwable internal / external threads.

[0067] The corresponding interruptions can also be adapted to each other, so that the connecting elements and screw inserts can be connected to each other by rotation (see above).

[0068] In addition to the connecting element according to the invention having threaded segments, another connecting element may be proposed having a journal forming a first connection / coupling area at one end, on the outer surface of the journal (instead of multiple threaded segments spaced apart by interruptions) formed with (continuous or uninterrupted) multi-start external threads.

[0069] This alternative connecting element can also be improved with the improvements described for the connecting element having a threaded segment, such as a recess with an internal thread or another recess with another internal thread, a flat contact portion, or a centering element.

[0070] In addition to alternative coupling elements with multi-threaded connections, it is particularly advantageous that (compared to single-threaded connections) a larger axial feed / stroke can be achieved with the same rotation angle using such coupling elements that are screwed together by multi-threaded connections (e.g. in probe measuring devices), thereby allowing the coupling element to be screwed together faster than conventional components with single-threaded connections.

[0071] Therefore, if the probe insert is connected by such an alternative connecting element with multi-threaded threads in the case of a probe measuring device, the probe insert can be replaced or replaced in a faster time.

[0072] The above description of the advantageous embodiments of the invention includes numerous features, which are presented in the individual dependent claims as partially summarized into a plurality of features. However, these features can also be conveniently viewed individually and summarized into other meaningful combinations.

[0073] Even though certain terms are used in the specification or in the claims, either in the singular or in relation to quantifiers, the scope of the invention using these terms should not be limited to the singular or the corresponding quantifier. Furthermore, the words “an” or “a” are not to be understood as quantifiers, but rather as indefinite articles.

[0074] The features, characteristics, and advantages of the present invention described above, as well as the ways and means of implementing them, will become clearer and more readily understood in conjunction with the following detailed description of the embodiments of the present invention in conjunction with the accompanying drawings / illustrations (the same components / parts and functions have the same reference numerals in the drawings / illustrations).

[0075] These embodiments are used to illustrate the invention, and the invention is not limited to the combinations of features given therein, nor is it limited in terms of functional features. Furthermore, features suitable for each embodiment can be clearly viewed separately, removed from the embodiments, introduced into other embodiments to supplement other embodiments, and / or combined with any one of the claims.

[0076] In the attached diagram:

[0077] Figure 1 A probe bar of a probe measuring device according to an embodiment of the present invention is shown, the probe bar having a probe insert, a connecting element, a screw insert, and a connecting arm / measuring shaft;

[0078] Figure 2 (in view) Figure 2-1 (2-2 and 2-3) show the connecting elements of the probe rod of the probe measuring device according to an embodiment of the present invention;

[0079] Figure 3 (in view) Figure 3-1 (3-2 and 3-3) show the screw insert of the probe rod of the probe measuring device according to an embodiment of the present invention;

[0080] Figure 4 A section of the probe rod of a probe measuring device according to an embodiment of the present invention is shown, the probe rod having a probe insert, a connecting element, a screw insert, and a connecting arm / measuring shaft;

[0081] Figure 5 A probe bar of a probe measuring device according to another embodiment of the present invention is shown, the probe bar having a probe insert, a connecting element, a screw insert, and a connecting arm / measuring shaft;

[0082] Figure 6 (in view) Figure 6-1 Figures 6-2 and 6-3 show screw inserts for the probe rod of a probe measuring device according to another embodiment of the present invention;

[0083] Figure 7 A cross-section of a probe rod of a probe measuring device according to yet another embodiment of the present invention is shown, the probe rod having a preloadable connecting element;

[0084] Figure 8 A cross-section of a probe rod of a probe measuring device according to yet another embodiment of the present invention is shown, the probe rod having a preloadable connecting element;

[0085] Figure 9 The probe bar of a probe measuring device according to another embodiment of the present invention is shown, the probe bar having a probe insert, a connecting element, a screw insert, and a connecting arm / measuring shaft;

[0086] Figure 10 Detailed views of the connecting elements, screw inserts, and connecting arms / measuring axes of a probe measuring device according to another embodiment of the present invention are shown.

[0087] Figure 11 The probe measuring device shown is according to another embodiment of the present invention (such as in...). Figure 9 The cross section shown in the figure.

[0088] - 3D probe insert / probe tip 8 with a rotating connector for 3D detector 2 Figures 1 to 4 )

[0089] Unless otherwise explicitly defined, the terms used herein (such as axial and radial) shall be understood with reference to the measurement axis 82 of the 3D detector 2.

[0090] The 3D detector 2 includes a housing 4 (not shown in the figure), on which a probe rod 6 (see figure) is mounted. Figure 1 , Figure 4 It is guided in a displaceable manner in the direction of the measuring axis 82 defined by the housing 4.

[0091] Furthermore, the probe rod 6 is guided on the housing 4 in a fully pivotable manner by means of a universal joint 86 (e.g., in the form of a ball-and-socket joint 86) about a pivot point on the measuring axis 82 and is elastically preloaded by a return spring (not shown in the figure).

[0092] like Figure 1 and Figure 4 As shown, the probe rod 6 has a probe insert / probe tip 8 extending from the housing, the free probe end of which is composed of a probe ball 10 and is defined at a probe reference point on the measurement axis 82 in the rest position of the probe rod 6.

[0093] like Figure 1 and Figure 4 As shown, the probe rod 6 also includes a connecting arm 80, which extends about the pivot point opposite to the probe insert 8 or opposite to the direction 84 toward the probe tip 8 into a cylindrical guide opening (not shown in the figure) centered about the measurement axis 82 of the housing 4.

[0094] like Figure 1 and Figure 4 As shown, by means of connecting element 16 (see Figure 2 ) and screw insert 116 connected to connecting element 16 (see Figure 3 The connecting assembly 216 of the probe insert 8 is screwed to the connecting arm 80. In addition to the probe ball 10, the probe insert also has a (steel) pin 12 and a (ceramic) sleeve 14. The pin accommodates the probe ball 10 by means of a welded connection, and the (ceramic) sleeve is itself connected to the pin 12.

[0095] Therefore, if combined Figure 2 In more detail, the (assembled) connecting element 16 (then) provides an axially oriented recess 26b in the form of a hole open on one side (end side) at its end pointing toward the probe tip 8 in the direction 84, which is used to receive the sleeve 14 of the probe insert 8.

[0096] like Figure 2 (in view) Figure 2-1As shown in detail views 2-2, 2-3, and 2-3, the connecting element 16 has a journal 24a forming a first connection / coupling region 18 at one end.

[0097] The journal 24a has a plurality (in this case, three) of threaded segments 28 formed on its outer surface 60, which are not adjacent to each other in the radial circumferential direction 62, are arranged in a uniform manner in the radial circumferential direction 62, and are identical in the form of external threaded portions 30. The sub-thread lines 30 of these threaded segments all have the same, possibly decreasing pitch curve 68 or (in short) the same, possibly decreasing pitch 68.

[0098] That is, such as Figure 2 As shown, three unthreaded regions or unthreaded segments (hereinafter referred to as interruptions 32) are formed in the radial circumferential direction 62 between the three threaded segments 28 (or on the outer journal surface 60 in the case of the connecting element 16), which are also uniformly distributed in the radial circumferential direction 62 (alternating with the threaded segments 28). These unthreaded regions or unthreaded segments are in the form of smooth, partially cylindrical surfaces / outer surfaces.

[0099] Here, it is also possible to... Figure 2 The three identified interruptions 32 are designed to be slightly longer than the three threaded segments 28 in the radial circumferential direction 62, and also as... Figure 2 As shown, these three interruptions are designed to be radially inward or radially rearward than the threaded segment 28.

[0100] In addition, such as Figure 2 As shown, the journal 24a of the connecting element 16, which carries the external thread portion 30, has an axial recess 26a in the form of a hole that is axially open on one side (end side), in which an internal thread 34 is provided.

[0101] In addition, such as Figure 2 As shown, an additional journal 24b forming a second connection / coupling area 20 is provided on the connecting element 16 (at the other end of the journal 24a where the threaded segment 28 or the external thread portion 30 is carried).

[0102] This additional journal 24b is also provided with a recess 26b in the form of an axially oriented hole that is open on one side (end side), which is used for (e.g.) Figure 1 and Figure 4 (As shown) Sleeve 14 that accommodates probe insert 8. That is, sleeve 14 of probe insert 8 is bonded in recess 26b.

[0103] In addition, such as Figure 2As shown, the connecting element 16 has a radially extending abutment surface 36 (located on a radially outwardly extending flange-like protrusion 42) pointing toward the journal 24a carrying the threaded segment 28 or the external thread portion 30, for axial planar abutment (also simply planar abutment) with the mating surface 44 at the connecting arm 80.

[0104] For example Figure 2 As shown, the flange-shaped protrusion 42 has grooves 46 on its outer peripheral surface for better grip. Corresponding grooves 48 can also be designed on the outer peripheral surface of another journal 24b (also for better grip there).

[0105] Furthermore, the connecting element 16 (axially located between the journal 24a carrying the threaded segment 28 or the external thread portion 30 and the flange-shaped protrusion 42 providing a planar abutment) is provided with a generally cylindrical sub-segment 38, on the outer surface of which is designed a radially outwardly curved protrusion 40 that surrounds in the radial circumferential direction. This protrusion is used to radially center the connecting element 16 within the connecting arm 80 (see...). Figure 1 and Figure 4 (In short, it is also used only for determining the center).

[0106] Figure 3 (in view) Figure 3-1 Screw insert 116 is shown in detail in sections 3-2 and 3-3.

[0107] like Figure 3 As shown, the screw insert 116 also has a first connection / coupling area 118 at one end.

[0108] This first connection / joining region 118 has an axial recess 124 in the form of a hole that is open on one side (end side). On the inner surface 70 of this recess, there are a plurality (in this case three) of thread segments 126 that are not adjacent to each other in the radial circumferential direction 62, are arranged in a uniform manner in the radial circumferential direction 62, and are identical in the form of internal thread portions 128. The sub-thread lines 128 of these thread segments all have the same, possibly decreasing pitch curve 68 or (in short) the same, possibly decreasing pitch 68.

[0109] That is, such as Figure 3As shown, in the radial circumferential direction 62, between these three threaded segments 126 (or on the recessed surface 70 in the case of the screw insert 116), there are thus three unthreaded regions or unthreaded segments (hereinafter referred to again as interruptions 130) arranged in a similar manner, evenly distributed in the radial circumferential direction 62 (alternating with the threaded segments 126), in which the unthreaded regions or unthreaded segments take the form of smooth, partially cylindrical surfaces / outer surfaces.

[0110] Here, it is also possible to... Figure 3 The three identified interruptions 130 are designed to be slightly longer than the three threaded segments 126 in the radial circumferential direction 62, and are also as follows: Figure 3 As shown, these three interruptions are designed to be radially outward or radially rearward compared to threaded segment 126.

[0111] In short, the first connection / connection area 118 of the screw insert 116 is designed as a complementary, connectable mating part / mating element to the first connection / connection area 18 of the connecting element 16, or the recess 124 of the screw insert 116 carrying the threaded segment 126 is designed as a complementary, connectable mating part / mating element to the journal 24a of the connecting element 16 carrying the threaded segment 28.

[0112] With these complementary elements (as described), the connecting element 16 and the screw insert 116 are connected to each other in a simple and quick manner via a rotary connection.

[0113] In addition, such as Figure 3 As shown, a journal 122 forming a second connection / coupling area 120 is provided on the screw insert 116 (at the other end of the recess 124 where the threaded segment 126 or internal thread portion 128 is located).

[0114] An external thread 134 is provided on the outer surface 140 of the journal 122, by which the screw insert 116 can be screwed into the connecting arm 80 (where it is in the internal thread 88) (see...). Figure 1 and Figure 4 ).

[0115] In addition, such as Figure 3 Shown (and) Figure 4 Similar to the connecting element 16, the screw insert 116 has a radially extending abutment surface 136 (located on a radially outwardly extending flange-like protrusion 142) pointing toward the journal 122 carrying the external thread 134 for axially abutting the mating surface 144 at the connecting arm 80.

[0116] In addition, the screw insert 116 (axially between the journal 122 with external threads 134 and the flange-shaped protrusion 142 that provides abutment) is provided with a generally cylindrical subsection 138 for radial centering in the connecting arm 80.

[0117] For example Figure 3 As shown, the screw insert 116 also has a generally cylindrical intermediate region 132 with a narrower diameter (axially between the first connection / coupling region and the second connection / coupling regions 118, 120 or axially between the flange-like protrusion 142 of the screw insert 116 and the first connection / coupling region 118), thereby allowing the screw insert 116 to have a certain degree of flexibility in order to compensate for possible errors.

[0118] Assembly of the probe insert 8 can be performed in the screw insert 116 screwed into the connecting arm 80.

[0119] For this purpose, the screw insert 116 can be screwed into the connecting arm 80 (where it is in the internal thread 88) via the external thread 134 provided on the outer journal surface 140 (see...). Figure 1 and Figure 4 ).

[0120] In order to fix / secure the probe insert 8 (which is connected to the connecting element 16 by its sleeve 14) to the connecting arm 80 (see...) Figure 1 and Figure 4 Thus, the journal 24a of the connecting element 16, having a threaded segment 28 with an external threaded portion 30, is axially introduced into / pushed into the recess 124 of the screw insert 116, having a threaded segment 126 with an internal threaded portion 128 (especially until the axial plane abutment surface 36 abuts against the mating surface 44 of the connecting arm 80), wherein the threaded segment 28 of the connecting element 16 is recessed into the interruption portion 130 of the screw insert 116 (or vice versa (32 / 126), and is then preloaded and thus connected or held / fixed (rotary connection) by “twisting relative to each other” (whereby the external threaded portions and internal threaded portions 30, 128 of the threaded segments 28, 126 engage with each other).

[0121] This plug-in-rotation sequence (to be performed when assembling the probe insert 8 into the 3D detector 2) or the rotational connection of the connecting element 16 and the screw insert 116 does not require time-consuming and laborious tightening, as is necessary in the 3D detector in WO 02 / 103282 A1 (with the centering element and threaded rod there) and thus enables simple and quick replacement or quick and easy assembly of the probe insert 8 in the 3D detector 2.

[0122] - A 3D probe insert / probe tip 8 having a rotating connector for a 3D detector 2 with a screw insert 116 acting as a "clamp". Figures 5 to 6 )

[0123] Similarly, unless otherwise explicitly defined, the terms used herein (such as axial and radial) shall be understood with reference to the measurement axis 82 of the 3D detector 2.

[0124] Figure 5 The probe rod 6 of the 3D detector 2 is shown, which has a probe insert 8, a connecting element 16, a connecting arm / measuring axis 80, and an alternative screw insert 116.

[0125] Figure 6 (in view) Figure 6-1 (6-2 and 6-3) This alternative screw insert 116 is shown in detail.

[0126] The probe insert 8 and the connecting element 16 are the same as those described in the above embodiment (according to...). Figures 1 to 4 The connecting arm / measuring shaft 80 and the screw insert 116 are designed similarly; they also largely correspond to the above-described embodiments, especially as long as they involve the rotating connection of the connecting element 16 and the screw insert 116.

[0127] With the aforementioned probe rod 6 (according to) Figures 1 to 4 Compared to the following implementation of the probe rod (based on...), Figures 5 to 6 The difference lies "only" in the retention of the screw insert 16 in the connecting arm / measuring shaft 80.

[0128] Because these two embodiments are largely consistent, for simplicity, descriptions of identical elements in both embodiments are omitted herein (hereinafter), and reference is made in connection with statements relating to the embodiments described above. In particular, identical components / parts and functions have the same reference numerals in the drawings / illustrations.

[0129] like Figure 5 and Figure 6 As shown, the alternative screw insert 116 has a radially resilient structure 148 on its outer surface 146, which is designed therein in the region of the first connection / coupling area 118.

[0130] This axially elastic structure 148 is here (as in particular) Figure 6 The shown clip is formed by means of (three) spring clamping elements 150.

[0131] Therefore, as further Figure 5As shown, a (locking) structure 94 (in the form of a radially circumferential groove 96 on the inner surface 92 of the recess 90 in the connecting arm / measuring shaft 80, in which the screw insert 116 is accommodated) is designed on the inner surface 92 of the recess 90 in the connecting arm / measuring shaft 80. This radially elastic structure 148 or spring clamping element 150 can be locked into that groove 96.

[0132] Therefore, by means of these simple structural elements (the radial elastic structure 148 or spring clamping element 150 of the screw insert 116 and the (locking) structure 94 or groove 96 of the connecting arm / measuring shaft 80), the screw insert 116 can be reliably accommodated and held in the connecting arm / measuring shaft 80 in a simple manner.

[0133] - The 3D probe insert / probe tip 8 has a connecting element 16 preloaded in the connecting arm / measuring shaft 80. Figure 7 and Figure 8 )

[0134] Similarly, unless otherwise explicitly defined, the terms used herein (such as axial and radial) shall be understood with reference to the measurement axis 82 of the 3D detector 2.

[0135] Figure 7 and Figure 8 The embodiment of the connecting elements 16 described above (accommodated in the connecting arm / measuring shaft 80) is illustrated in cross-section. These connecting elements are provided with preload by means of their surfaces in the connecting arm / measuring shaft 80 or in the recess 90 of the connecting arm / measuring shaft 80 (in other respects, these connecting elements 16, as well as the connecting arm / measuring shaft 80 that accommodates these connecting elements, may be designed according to the foregoing embodiment or according to the foregoing embodiment).

[0136] Therefore, such as Figure 7 and Figure 8 As shown, such a connecting element 16 has a sub-segment 38 whose outer periphery is non-circular in cross-section. For example... Figure 7 and Figure 8 As shown, this non-circular shape (in both cases) consists of a radially inner region and radially outer regions 50 and 52.

[0137] This "non-circular" sub-region 38 is arranged here in the corresponding connecting element 16 (according to...). Figure 7 and Figure 8 At the location between the planar abutment portion 36 and the journal 24a forming the first connection / coupling area 18 (see, for example, see...) Figure 2 ).

[0138] Figure 7The connecting element 16 is shown, in which the outer periphery of sub-region 38 (in order to form non-circularity or to form regions 50, 52 that are radially more inner and radially more outer) has three interconnected, “flatter” arcs 54 in cross-section, that is, the radii of curvature of these arcs are greater than half the diameter of the circle.

[0139] Figure 8 A similar connecting element 16 is shown, in which the outer periphery of the sub-region 38 is connected in cross-section by a straight circular chord 56 located therebetween, which connects three circular arcs 54 (common circles, i.e. circles with the same radius).

[0140] Corresponding to these "non-circular" sub-regions 38 of the connecting element 16, complementary "non-circular" structures are designed on the inner surface 92 of the recess 90 in the connecting arm / measuring shaft 80. That is, these "non-circular" structures also have radially more inner regions and radially more outer regions 50, 52.

[0141] Figure 7 The connecting arm / measuring shaft 80 is shown, and the recess 90 of the connecting arm / measuring shaft has three slightly larger, interconnected, "flatter" arcs 54 on its inner surface 92 in cross-section (compared to the sub-region 38 of the connecting element 16) (so that a clearance (required for torsion (preloading)) is formed / can be formed between the connecting arm / measuring shaft 80 and the connecting element 16 in a "concentric" arrangement / orientation of the connecting arm / measuring shaft 80 and the connecting element 16).

[0142] Figure 8 The connecting arm / measuring shaft 80 is shown, and the recess 90 of the connecting arm / measuring shaft has three interconnected arcs 54 (three radii of the same circle with offset center points) on its inner surface 92 in cross-section (the starting point of the arcs 54 is marked by circle K).

[0143] According to Figure 7 and Figure 8 In both cases, regions 50 and 52 are formed on the outer surface of the sub-segment 38 of the corresponding connecting element 16 and on the inner surface 92 of the recess 90 of the corresponding connecting arm / measuring shaft 80, respectively, and are located in a radially more inner region and in a radially more outer region.

[0144] Therefore, if the connecting element 16 is to be accommodated in the connecting arm / measuring shaft 80, then this connecting element can be pushed into the recess 90 of the connecting arm / measuring shaft and then twisted relative to the connecting arm / measuring shaft 80. Here, if the connecting element 16, or the radially outer region 50, 52 of the sub-segment 38 of the connecting element 16, comes into contact with the radially inner region 50, 52 of the connecting arm / measuring shaft 80, or in the recess 90 of the connecting arm / measuring shaft 80, or on the radially inner surface 92 of the inner surface 90 of the recess 90 of the connecting arm / measuring shaft 80, then the connecting element 16 and the connecting arm / measuring shaft 80 are preloaded.

[0145] - 3D probe insert / probe tip 8 with a rotating connector for 3D detector 2 Figures 9 to 11 )

[0146] Similarly, unless otherwise explicitly defined, the terms used herein (such as axial and radial) shall be understood with reference to the measurement axis 82 of the 3D detector 2.

[0147] Figure 9 The probe rod 6 of the 3D detector 2 is shown, which has a probe insert 8, a connecting element 16, an alternative (slightly modified) connecting arm / measuring axis 80, and an alternative (slightly modified) screw insert 116.

[0148] Figure 10 This 3D detector 2, with an alternative screw insert 116, is shown in detail.

[0149] Figure 11 The 3D detector 2 shown in the alternative screw insert 116 is along Figure 9 The cross-section of the cross-section line indicated by FF.

[0150] The probe insert 8 and the connecting element 16 are the same as those described in the above embodiment (according to...). Figures 1 to 4 The connecting arm / measuring shaft 80 and the screw insert 116 are designed similarly; they also largely correspond to the above-described embodiments, especially as long as they involve the rotating connection of the connecting element 16 and the screw insert 116 (threaded segments 28, 126 (see...)). Figure 2 and Figure 3 )).

[0151] With the aforementioned probe rod 6 (according to) Figures 1 to 4 Compared to the following implementation of the probe rod 6 (according to...), Figures 9 to 11 The difference lies "only" in the retention of the screw insert 16 in the connecting arm / measuring shaft 80 and in the axial plane abutment portion of the axial plane abutment surface 36 of the connecting element 16.

[0152] Because these two implementations are largely consistent, for simplicity, descriptions of identical elements in these two implementations are omitted here (hereinafter), and reference is made in connection with the implementations described above (according to...). Figures 1 to 4 The relevant statements. In particular, the same components / parts and functions have the same reference numerals in the drawings / illustrations.

[0153] Especially Figure 9 and Figure 10 As shown, the alternative screw insert 116 is provided at the screw insert 116 (at the other end of the recess 124 carrying the threaded segment 126 or the internal thread portion 128) with a hole 152 forming the second connection / coupling area 120, having an inserted (hexagonal) screw 122.

[0154] With the aid of this (internal hex) screw 122 and its external thread 134, the screw insert 116 is screwed into the connecting arm 80 (where it is in the internal thread 88) (see Figure 9 and Figure 10 ).

[0155] In addition, such as Figure 9 and Figure 10 As shown, the other end of the screw insert 116, which has a hole 152 and a screw 122, forms a radially extending mating surface 136 for axially abutting the mating surface 144 at the connecting arm 80.

[0156] In addition, the screw insert 116 is provided with a generally cylindrical sub-section 138 for radial centering in the connecting arm 80.

[0157] For example, further in Figure 9 and Figure 10 As shown in the diagram, here, the radially outwardly extending flange-like protrusion 42 of the connecting element 16, with its radially extending abutment surface 36 pointing toward the threaded segment 28 or external thread portion 30 of the journal 24a, is supported at the mating surface 44 (planar abutment portion, see above) of the screw insert 116 (see above). Figures 1 to 4 In this embodiment, the planar contact portion 36 / 44 is realized between the connecting element 16 and the connecting arm 80.

[0158] like Figure 9 and Figure 10 As shown, the additional planar contact portion between the screw insert 116 and the connecting arm 80 is thus achieved by the planar contact surface 156 at the screw insert 116 and the mating surface 154 at the connecting arm 80.

[0159] Expressed in a simplified and intuitive way, based on Figures 1 to 4In the embodiment of the probe rod 6, the planar contact portion is realized between the connecting element 16 and the connecting arm 80 by means of a flange-shaped structure 158 (integratedly provided on the connecting arm 80) (see according to Figure 4 The flat contact portion 44 / 36), therefore, according to Figures 9 to 11 In the embodiment of the probe rod 6, the flange-shaped structure 158 is integrally designed on the screw insert 116, thereby forming a first planar contact portion 44 / 36 between the connecting element 16 and the screw insert 116, and a second planar contact portion 154 / 156 between the screw insert 116 and the connecting arm 80.

[0160] Therefore, the screw insert 116 can be reliably accommodated and held in the connecting arm / measuring shaft 80 in a simple manner by means of these simple structural elements at the screw insert 116.

[0161] Compared with the above embodiments, especially according to Figures 1 to 4 , Figures 7 to 8 ,as well as Figures 9 to 11 Regardless of the specific embodiment, elements from one embodiment can be combined with elements from another embodiment.

[0162] For example, screw insert 116 can be used with a separate screw 122 (according to...) Figures 9 to 11 (implementation method) and contact surface 44 / 36 (according to) Figure 4 (In the implementation method) they are combined with each other in another probe rod 6 of the 3D detector 2.

[0163] In this combined embodiment, the screw insert 116 can also swing slightly when the screw 122 is not fully tightened, thus not affecting the centering of the connecting arm 16.

[0164] Although the invention has been shown and described in detail through preferred embodiments, the invention is not limited to the disclosed examples, and other variations can be derived without departing from the scope of protection of the invention.

[0165] List of reference numerals in the attached diagram:

[0166] 2. Probe measurement device, 3D detector

[0167] 4. Shell

[0168] 6. Probe rod, probe arm

[0169] 8. Probe insert, probe tip

[0170] 10. Probe ball (probe reference point) (welded to steel pin 12)

[0171] 12 (steel) pins (bonded into ceramic sleeve 14)

[0172] 14 (Ceramic) sleeve (screwed and bonded to connecting element 16)

[0173] 16. Connecting element (for quick connection of probe insert 8 – connecting arm / measuring axis 80, connected to screw insert 36)

[0174] 18 First connection / coupling area, first screwing area (connected to screw insert 116)

[0175] 20 Second connection / coupling area, second screw-on area (connected to probe insert / probe tip 8 or ceramic sleeve 14)

[0176] 24a (threaded) journal (one end) (with threaded section 28)

[0177] 24b The other (threaded) journal (with a recess 26b for sleeve 14)

[0178] 26a Additional recess (at the first connection area 18 for internal thread 34, for screwing with the current threaded rod).

[0179] 26b Recess (at the second connection area 20 for sleeve 14)

[0180] 28 Threaded segment (located on journal 24a) for quick engagement with screw insert 36.

[0181] 30. Recess, sub-thread, external thread portion (at thread segment 28).

[0182] 32. Interruption, recess (between thread segments 28)

[0183] 34 Internal thread (in recess 26a of journal 24a for screwing with the current threaded rod)

[0184] 36. Abutment surface used for axial plane contact (axial plane contact surface)

[0185] 38. Generally cylindrical sub-segments (used for radial centering)

[0186] 40 Protrusions

[0187] 42. Flange-shaped protrusion (with a flat abutment)

[0188] 44. Mating surface (at the connecting arm 80 / screw insert 116, for the flat mating surface 36)

[0189] 46 Grooves

[0190] 48 grooves

[0191] 50. Regions located further in the radial direction (non-circular structures)

[0192] 52. Regions located further outward in the radial direction (non-circular structures)

[0193] 54. Arc

[0194] 56. Circular chord

[0195] 60 (outer surface of journal 24a)

[0196] 62 Radial circumferential direction

[0197] 68 Pitch Curve

[0198] 70 (in the recess 124) inner surface

[0199] 80 Connecting arm, measuring shaft

[0200] 82 Measuring the axis

[0201] 84. Direction of the probe tip

[0202] 86 General joints / ball-and-socket joints

[0203] 88 internal thread

[0204] 90 Recess (in connecting arm 80 for connecting element 16 and screw insert 116)

[0205] 92 Inner surface (in recess 90 (with a non-circular structure))

[0206] 94 (lock) structure

[0207] 96 radially circumferential grooves

[0208] 116 Screw insert (for quick connection of probe insert 8 – connecting arm / measuring axis 80, to connecting element 16)

[0209] 118 First connection / coupling area, first screw-in area (connected to connecting element 16)

[0210] 120 Second connection / coupling area, second screw-in area (connected to connecting arm / measuring axis 80)

[0211] External thread (for screwing onto the connecting arm / measuring shaft 80)

[0212] 122 (threaded) journal or screw (with external thread 134 for screwing into the connecting arm / measuring shaft 80)

[0213] 124 Recess (at the first connection area 118 for threaded segment 126 / in the first connection area)

[0214] 126 Threaded section (for quick connection with connecting element 16)

[0215] 128 Recess, sub-thread, internal thread portion (at thread segment 126)

[0216] 130 Interruption, recess (between thread segments 126)

[0217] 132. Narrower intermediate region (between the first connection / linkage region and the second connection / linkage regions 118, 120 (flexibility))

[0218] 134 External Thread

[0219] 136. Abutment surface for axial contact (axial contact surface)

[0220] 138. Generally cylindrical sub-segments (used for radial centering)

[0221] 140 (outer surface of journal 122 or screw 122)

[0222] 142 (with abutment portion) a flange-shaped protrusion, abutment portion

[0223] 144 Mating surface (at the connecting arm 80, for the mating surface 136)

[0224] 146 The outer surface of the screw insert 116 located in the area of ​​the first connection / coupling region

[0225] 148 Radial elastic structure

[0226] 150 Spring Clamping Element

[0227] 152 holes

[0228] 154 Mating surface (at the connecting arm 80, for the flat mating surface 156)

[0229] 156 Abutment surface (at screw insert 116 for axial plane abutment part (axial plane abutment surface))

[0230] 216 Connecting assembly, rotating connector

[0231] FF section.

Claims

1. A probe insert (8) for a probe measuring device (2), the probe insert having a single-piece connecting element (16) for receiving a probe tip in the probe measuring device (2), the connecting element having a first journal (24a) forming a first connection / coupling area (18) at one end and a second journal (24b) forming a second connection / coupling area (20) at the other end. in, A plurality of threaded segments (28) that are not adjacent to each other in the radial circumferential direction (62) are designed on the outer surface (60) of the first journal (24a), and the probe tip is accommodated in the second journal; and The connecting element (16) further has a radially extending abutment surface (36) for axial plane abutment and a generally cylindrical sub-section (38); wherein a radial centering portion is formed on the outer surface of the sub-section; and wherein the radial centering portion is axially arranged between the abutment surface (36) and the first journal (24a) forming the first connection / coupling area (18).

2. The probe insert according to claim 1, Its features are, The probe measuring device is a 3D detector.

3. The probe insert according to claim 1 or 2, Its features are, Each of the thread segments (28) is formed by one or more recesses (30) that form a portion of the thread, wherein the portion of the thread is a sub-thread and wherein the pitch curve (68) is the same at all the recesses (30) forming the sub-thread.

4. The probe insert according to claim 3, Its features are, The same pitch curve (68) is constant, or the same pitch curve changes.

5. The probe insert according to claim 3, Its features are, The same pitch curve is decreasing.

6. The probe insert according to claim 3, Its features are, A gap is formed between the sub-threads of the thread segment (28).

7. The probe insert according to any one of claims 1-6, Its features are, At least two threaded segments (28) are designed identically.

8. The probe insert according to claim 7, Its features are, All threaded segments (28) are designed identically.

9. The probe insert according to any one of claims 1-8, Its features are, The plurality of threaded segments (28) have three threaded segments.

10. The probe insert according to claim 9, Its features are, The three threaded segments are arranged in a manner that they are evenly distributed along the radial circumferential direction (62) on the outer surface (60) of the first journal (24a).

11. The probe insert according to any one of claims 1-10, Its features are, A recess (26a) with an internal thread (34) is provided in the first journal (24a) forming the first connection / coupling area (18).

12. The probe insert according to any one of claims 1-11, Its features are, The outer periphery of the sub-segment (38) is non-circular in cross-section.

13. The probe insert according to claim 12, Its features are, The sub-segment (38) consists of a region (50) that is radially more inner and a region (52) that is radially more outer.

14. The probe insert according to any one of claims 1-13, Its features are, The radially centered portion is formed on the outer surface of the sub-section (38) as a radially outwardly curved protrusion (40) that at least partially surrounds the radial circumference.

15. The probe insert according to claim 14, Its features are, The radially centered portion is formed on the outer surface of the sub-section (38) as a radially outwardly curved protrusion (40) that completely surrounds the radial circumference.

16. A probe measuring device (2). Its features are, A screw insert (116) having: - A first connection / coupling region (118) formed at one end, the first connection / coupling region being for connection with the connecting element (16) of the probe insert according to any one of claims 1-15, wherein the first connection / coupling region of the screw insert (116) has a recess (124), and wherein a plurality of threaded segments (126) not adjacent to each other in the radial circumferential direction (62) are formed on the inner surface (70) of the recess (124) of the first connection / coupling region of the screw insert (116); and Connecting arm / measuring shaft (80), wherein the screw insert (116) is connected to or integrally designed with the connecting arm / measuring shaft (80); Wherein, a radially extending abutment surface is formed at the connecting arm / measuring shaft (80) for abutting against the axial plane of the radially extending abutment surface (36) of the connecting element (16), and a radial centering surface is formed at the inner surface of the connecting arm / measuring shaft (80) for cooperating with the radial centering portion of the connecting element (16) formed on the outer surface of the sub-section (38) of the connecting element (16).

17. The probe measuring device (2) according to claim 16. Its features are, The screw insert (116) is screwed into the connecting arm / measuring shaft (80).

18. The probe measuring device (2) according to any one of claims 16-17. Its features are, The threaded segments (126) of the screw insert (116) are each formed by one or more recesses (128) that form a portion of the thread, wherein the portion of the thread is a sub-thread and wherein the pitch curve (68) is the same at all the recesses (128) forming the sub-thread.

19. The probe measuring device (2) according to claim 18. Its features are, The same pitch curve (68) is constant, or the same pitch curve changes.

20. The probe measuring device (2) according to claim 18. Its features are, The same pitch curve (68) is decreasing.

21. The probe measuring device (2) according to claim 18. Its features are, The recess (128) that forms the sub-thread does not form a common thread.

22. The probe measuring device (2) according to claim 18. Its features are, A gap is formed between the sub-threads of the threaded segment (126) of the screw insert (116).

23. The probe measuring device (2) according to any one of claims 16-22. Its features are, At least two threaded segments of the screw insert (116) are identically designed.

24. The probe measuring device (2) according to claim 23. Its features are, All threaded segments (126) of the screw insert (116) are identically designed.

25. The probe measuring device (2) according to any one of claims 16-24. Its features are, The screw insert (116) has three threaded segments (126) of the plurality of threaded segments.

26. The probe measuring device (2) according to claim 25. Its features are, The three threaded segments are arranged in a manner that they are evenly distributed along the radial circumferential direction (62) on the inner surface (70) of the recess (124).

27. The probe measuring device (2) according to any one of claims 16-26. Its features are, A journal (122) forming a second connection / coupling area (120) is formed at the other end of the screw insert (116), and an external thread (134) is formed on the outer surface (140) of the journal; or a hole (152) forming a second connection / coupling area (120) is formed at the other end of the screw insert (116), the hole having an inserted screw (122).

28. The probe measuring device (2) according to any one of claims 16-27. Its features are, The screw insert (116) has a generally cylindrical intermediate region (132) with a narrowed diameter between the first connection / coupling region (118) and the second connection / coupling region (120) of the screw insert (116).

29. The probe measuring device (2) according to any one of claims 16-28. Its features are, The screw insert (116) has a radially extending contact surface (136) for axial plane contact.

30. The probe measuring device (2) according to any one of claims 16-29. Its features are, The screw insert (116) has a generally cylindrical subsection (138) for radial centering.

31. The probe measuring device (2) according to any one of claims 16-30. Its features are, A radial elastic structure (148) on the outer surface (146) of the screw insert (116), wherein the radial elastic structure (148) is formed by means of a spring clamping element (150).

32. The probe measuring device (2) according to claim 31. Its features are, The radial elastic structure (148) is located in the region of the first connection / coupling region (118) of the screw insert (116).

33. A probe measuring device (2). Its features are: A single-piece connecting element (16) for accommodating the probe tip in the probe measuring device (2) has a journal (24a) forming a first connection / coupling area (18) at one end, and a plurality of threaded segments (28) not adjacent to each other in the radial circumferential direction (62) are designed on the outer surface (60) of the journal (24a). A screw insert (116) having a first connection / coupling area (118) formed at one end, the first connection / coupling area of ​​the screw insert (116) being used for connection with the connecting element (16), wherein the first connection / coupling area of ​​the screw insert (116) has a recess (124) on which a plurality of threaded segments (126) not adjacent to each other in the radial circumferential direction (62) are formed on the inner surface (70) of the recess. Probe insert (8); and A connecting arm / measuring shaft (80), wherein the probe insert (8) is connected to the connecting arm / measuring shaft (80) by means of the connecting element (16) and the screw insert (116) connected to the connecting element (16); The connecting element (16) further comprises a radially extending abutment surface (36) for axial planar contact and a generally cylindrical sub-segment (38); wherein a radial centering portion is formed on the outer surface of the sub-segment; and wherein the radial centering portion is axially arranged between the abutment surface (36) and the journal (24a) forming the first connection / coupling area (18); and Among them, a radially extending abutment surface is formed at the connecting arm / measuring shaft (80) for abutting against the axial plane of the radially extending abutment surface (36) of the connecting element (16), and a radial centering surface is formed at the inner surface of the connecting arm / measuring shaft (80) for cooperating with the radial centering portion of the connecting element (16) formed on the outer surface of the sub-section (38) of the connecting element (16).

34. The probe measuring device (2) according to claim 33. Its features are, The threaded segments (28) of the connecting element (16) and the threaded segments (126) of the screw insert (116) are designed to be corresponding, screwable internal / external threads.

35. The probe measuring device (2) according to claim 33 or 34. Its features are, The probe measuring device is a 3D detector.

36. The probe measuring device (2) according to any one of claims 33-35. Its features are, The probe insert (8) has a probe ball (10), a pin (12) and a sleeve (14).

Images