JPH0219683Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention was made for the purpose of providing a centering adjustment mechanism that can easily center the feeler of the measuring probe in two directions in a measuring machine having a measuring probe with a rotating function. It is something.

As described above, in a measurement probe having a turning function, a centering operation is performed when determining a reference position for angle indexing. As shown in Fig. 1, the probe 1 is rotated from the initial index position P1 to the 180-degree rotation position P2, and the center is set by setting the misalignment amount B of the feeler 2 tip from the machine coordinate axis in the machine coordinate axis A plane to zero. It is a matter of making a contribution. In this case, it is possible to roughly adjust the initial index position P1 to make the misalignment amount B zero by moving the rotation angle, but there is a restriction on the resolution of the index angle, and the final fine adjustment is performed in the second, third, and third positions. As shown in Figure 4, the adjustment mechanism C is provided on the mounting base 3. 6 is a probe mounting shaft. That is, the tip 2a of the feeler 2 is adjusted by turning the adjusting screw 5 of the mounting base 3 using a disc spring 4 as shown in FIG. 2 and a four-way adjustment method as shown in FIG. 3, or a three-way adjustment method as shown in FIG. We were making fine adjustments to the centering.
However, with these methods, the feeler tip 2a moves in both the X and Y axes by turning a single adjustment screw 5. The disadvantage is that the centering work must be repeated several times, which is complicated.

In order to eliminate the above-mentioned drawbacks, the present invention provides a centering mechanism for a measuring machine that allows centering work to be performed extremely easily.

The details of the present invention will be explained below based on the embodiment shown in FIGS. A first U-shaped part E1 consisting of an upper piece 12, a middle piece 13 parallel to this, and a first hanging piece D1 connecting both pieces in a cantilevered manner; It is composed of a second U-shaped portion E2 consisting of a piece 14 and a second vertical piece D2 that connects the two pieces in a cantilevered manner, and the vertical pieces D1 and D2 are arranged so that their wall surfaces are orthogonal to each other. and the upper piece 12
A first adjustment bolt G1 is provided at the tip of the middle piece 13 for adjusting the distance F1 between the two pieces,
A second adjustment bolt G2 is provided at the tip of the middle piece 13 and the lower piece 14 for adjusting the distance F2 between the two pieces.
is provided.

Note that in this embodiment, the middle piece 13 is the first middle piece 13.
A and the second middle piece 13b are formed separately and then fixed to each other, but it is also possible to form them integrally as in the modification shown in FIG. Further, the first adjustment bolt G1 consists of a centering bolt H1 screwed into the upper piece 12 and a holding bolt J1, and the lower end of the centering bolt H1 is in contact with the middle piece 13a, but the holding bolt J1 is It is also screwed into the piece 13a. Similarly, the second adjustment bolt G2 is
Centering bolt H2 and retaining bolt J2 screwed into
The lower end of the centering bolt H2 is in contact with the lower piece 14, but the holding bolt J1 is also screwed into the lower piece 14. 2 is a filler, and 2a is its tip.

In the above, the first and second U-shaped portions E1, E2
are arranged at 90 degrees different from each other, and the tip of the metal material can be elastically deformed, so when centering one or both of the X and Y axes, it is necessary to Holding bolt J1, J
2, and then rotate the centering bolts H1 and H2 appropriately to finely adjust the spacing dimensions F1 and F2 to perform centering. After centering, lightly tighten holding bolts J1 and J2.

Since the present invention has the above-mentioned configuration, first,
By turning the second adjustment bolt, the feeler tip of the probe can be finely adjusted independently in each of the X and Y axes, which has the excellent effect of making centering work extremely easy.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of centering work, Fig. 2 is a front view showing a conventional centering adjustment mechanism, Fig. 3 is a plan view thereof, Fig. 4 is a plan view showing a conventional example different from Fig. 3; FIG. 5 is a front view showing one embodiment of the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a perspective view showing another embodiment of the present invention. D1, D2: Vertical piece, E1, E2: U-shaped part, F
1, F2: Interval dimension, G1, G2: Adjustment bolt,
1: Probe, 6: Probe mounting shaft, 11: Mounting base, 12: Upper piece, 13: Middle piece, 14: Lower piece.

Claims (1)

[Scope of utility model registration request] A first mounting base located between the probe mounting shaft and the probe includes an upper piece fixed to the mounting shaft, a middle piece parallel to the upper piece, and a first vertical piece connecting both pieces in a cantilevered manner. It is composed of a U-shaped portion, a second U-shaped portion consisting of the middle piece, a lower piece parallel to the middle piece, and a second hanging piece that cantileverly connects both pieces, and the both hanging pieces are connected to the wall surface of the middle piece. The pieces are arranged so as to be orthogonal to each other, and a first adjustment bolt is provided at the tip of the upper piece and the middle piece for adjusting the distance dimension between the two pieces, and a first adjustment bolt is provided at the tip of the upper piece and the middle piece, and the tip of the middle piece and the lower piece A centering mechanism for a measuring machine, characterized in that a second adjustment bolt is provided for adjusting the distance between the two pieces.