DE2102076C - Measuring standard for external dimensions, length measuring rate or the like - Google Patents

Description

55 fraction is reduced. Since, according to the invention, the base body also consists of several modular

The invention relates to a novel measurement standard composed of individual parts of different lengths for external dimension length measuring devices, which can exist in particular, can be used accordingly Jaw gauges is suitable and accordingly chender spacers the length of the same in the following with reference to these application standards over a very large range is described, but can also be varied for other test batches. Since the fine adjustment of the length of the equipment is usable. Measurement standard takes place by means of the adjustment part, needs

For setting indicating snap gauges with neither this nor one of the parts of the base body Up to now, dial indicators have become fixed setting standards or have to be manufactured particularly precisely. It is also Eid dimension pairings are used, which then do not require the measurement against the measuring device adjust the measuring device while the Fer- system is running, coming point of the spherical contact surface The right to be given to the workplace must be perpendicular to the center of the reference area, provided that it is sen. Such fixed setting standards are only available when the reference surface is in plane-parallel contact

Length measuring device is still against the other jaw of the leads, the outer end of which is a spherical system measuring device comes to rest because the individual measuring surface 4 is formed. The adjustment part 3 is m the can normally be manufactured much cheaper, guide bore 6 by means of a clamping screw 5 furthermore a significantly smaller number of pieces required clamped, which is in a transverse thread, maintenance is considerably simplified and the 5 bore 7 is guided. In this way, the ver-items of the measuring standard component 3 according to the invention can be locked steplessly in every position, kastenart's are interchangeable, result in the embodiment shown in Figs. 2 and 3 Overall, the technical and shape of the measuring standard is extraordinarily large and has a base body I. economical advantages. from a lower part la, one with this firmly

According to a preferred embodiment, the io screwed intermediate piece 16, which in turn is under

Adjustment part in the perpendicular to the reference surface or interposition of an extension ring 8 with the

inclined guide hole is firmly screwed into the upper part Ic

a threaded hole in the base body, in turn, has an axial guide hole 6, in

Clamping screw clamped. This can also be achieved by means of an essentially cylindrical adjustment

cooperating with the clamping screw, the surrounding part 3 is guided displaceably, which on its outside -

The clamping side adapted to the catch shape of the adjustment part bears a hemispherical projection which the

elements happen. Belug contact surface 4 forms. The lock cK

According to a special embodiment, the adjustment part 3 runs in the FC approximately bore 6 erfok

the guide hole relative to the Bez-igsfläche under through two of the circumferential surface (* 2S adjustment part 3 a;

an angle of about 45 to 60 °, the spherical ao fitted clamping elements 9, which by means of a in di

Contact surface is spherically arched, so that it is in a threaded hole 7 guided clamping screw 5 Gegc

Rotation of the adjustment part about its longitudinal axis can be tightened in the adjustment part 3. Depending on the d ·. ·

In every position a punctiform abutment at the desired length of the measuring standard can be the Zw 1

measuring device results. This has the advantage that one or more of the same type in the case of a piece Ib

a flattening of the 35 shaped spacers of differing length caused by wear

Contact surface can be changed by simply turning the adjuster. To compensate for smaller La;

part in the guide hole which has not yet passed through genunterschieee can with or without extension ·.

Wear-affected part of the spherical ring 8 can be worked. The fine adjustment was successful

Always widen the surface to rest against the measuring device by moving the breach accordingly

can. 30 part 3 in the guide hole 6.

According to a further embodiment, the embodiment shown in FIG. 4 can ent

Base body made of a flat reference surface corresponds essentially to your measuring standard in accordance with ·.

holding lower part, a guide hole ent- Fig. 1, but now the guide hole b

holding upper part and optionally one or relative to the reference surface 2 at an angle of

consist of several interchangeable spacers, 35 is arranged about 60 °. That which can be moved in it

which are detachably connected to one another, in particular adjusting part 3, is united at its outer end

are screwed. Depending on the requirements, spherical contact surface 4 can be rounded and is made by means of

between the screwed together parts of the clamping parts guided in the threaded hole 7

of the base body also screw in an extension ring 5 in the desired position. There

be placed. 40 by turning the adjustment part 3 in the guide

In the following, preferred embodiment bore 6 is a different part of the spherical attachment

men of the invention with reference to the drawing surface 4 comes to rest against the measuring device,

further explained. It shows a corresponding rotation of the adjustment

Fig. 1 is a schematic longitudinal section through partly in order to replace one by wear or Beeine Embodiment of the measuring standard, 45 damage to the flattened area an even more spherical

F i g. 2 to bring a thematic longitudinal section through the area to the measuring device,

a modified embodiment of the measuring standard, in practical use the adjustable

F i %. 3 shows a schematic cross section along the face of the measuring standard between the measuring surfaces of a line IH-III in FIG. 2 and against a gauge pair that is set to zero

Fig. 4 is a schematic longitudinal section through a device 50 and adjusted until the

Measuring standard; with inclined guide hole. Dial pointer shows zero again. Then the

The in Fig. 1 shown measuring standard has an actuating part 3 locked and the measuring standard together

Base body 1 from a flat reference surface 2 given with the measuring device at the workplace. To

having lower part 1 α and one with this fixed the prescribed number of measurements can

screwed upper part Ic with a perpendicular to the loading 55 then the measuring device by means of the measuring

traction surface 2 running guide bore 6, checked in normals and corrected if necessary

which an adjustment part 3 can be slidably displaced.

1 sheet of drawings

Claims (7)

required exact plane parallelism very expensive and patent claims? can also only be used for a certain amount. For setting various 1. The measuring standard for external and linear measurements is therefore a very large number of fixed end devices, In particular, jaw gauges, which means that 5 normal are required, which are also constantly checked marked that in the Führboh- and must be replaced, which is not only very tion (6) of a base body (1) with a high investment and storage costs, otherwise too outer end arranged flat reference surface causes a large control effort. The on (2) an essentially cylindrical adjustment part place the fixed setting standards usable end (3) perpendicular or oblique to the reference surface relative to dimensional pairings can indeed be guided from several Eirrel slidably, and that the adjustment part (3) can be joined together, each of which, however, must have exactly plane-parallel end surfaces facing away from the reference surface (2), so that At the end, a spherical contact surface (4) for point-promoting production costs and the control effort still has moderate contact with the length measuring device and is much higher. In addition, the end through locking devices (S) is infinitely variable in the 15 dimensional pairings because of its high price and its guide bore (6) in the base body (1) and cannot be placed at the workplace with sensitivity. can be given as they are among those in the ferti 2. Meßni rmal according to claim 1, characterized by the prevailing conditions in the shortest possible time, that the locking devices would become unusable. As soon as the, for example at least one in a threaded hole (7) of the ao caused by wear or damage Base body guided clamping screw (S) a-jf- deviations from plane parallelism a he Ways, the tightening of which the adjustment part (3) exceeds the correct value, are the fixed settings! Guide hole (6) stuck. normal and gauge block pairings committee, there one 3. Measurement standard according to claim 1 and 2, reworking from technical odei economic characterized by with the clamping screw (5) 25 reasons is no longer possible.
The object of the invention is to provide a new type of clamping element (9) which is adapted to the adjusting part (3). To create measuring standard, which the previous after 4. Meßno ^r times according to claim 1 to 3, characterized parts avoids, with much less effort, characterized in that the guide bore (6) can be made and controlled and in a relative to the reference surface (2) at an angle 30 times continuously to the each desired runs from about 45 to 60 ° and the convex length can be adjusted. bearing surface (4) is spherically curved, so that it solves this task according to the invention ge a rotation of the adjustment part (3) around its that in the guide bore of a base body longitudinal axis in each position a punctiform with a planar BeAnlage arranged at the outer end Length measuring device results. 35 zrgsfläche an essentially cylindrical adjustment. Measuring standard according to claims 1 to 4, characterized partly perpendicular or obliquely to the Bc: ugsfläche shiftable, that the base body (1) is guided from bar, and that the adjusting part at the outer end facing away from the reference surface containing the planar reference surface (2) spherical lower part (la), a guide bore (6) contact surface for punctiform contact with the length-containing upper part (Ic) and optionally 40 measuring device and one or more interchangeable intermediate pieces (lh) with one another through locking devices is releasably fixable.
are bound. The main advantage of the invention 6. N / feßnormal according to claim 5, characterized in that the measuring standard consists in that this indicates on the one hand that the individual parts (1 a, 1 b, 1 c) 45 side with a flat reference surface and on the other side of the base body (1 ) tightly together only with a reference point that is screwed against. Length measuring device comes to rest, so that in the 7. Measuring standard according to claim 1 to 6, marked production, the complex generation of plane-parallel records by a between the surfaces and the time-consuming Parverschraubten parts (la, Ib, Ic) of the basic body 50 allelity measurements are omitted. Another advantage pers (1) insertable extension ring (8). lies in the infinitely adjustable length, which makes the Use of one and the same measuring standard for a large number of different dimensions is allowed, so that the number the required measuring standards to a small one