JPH04115101A - Phase measuring tool for spline machining shaft - Google Patents

Abstract

PURPOSE:To make it possible to machine the other part of a machining shaft highly accurately in conformity with the phase of a spline part by tightly coupling a spline part into an assembling hole, and performing the indicator measurement of the phases of a reference surface and the plane of the other part of the spline machining shaft. CONSTITUTION:An involute spline part 4 of a steering shaft 3 is inserted into an assembling hole 7 of a tool main body 6. Fixing pins 12 and 12 are loosened, and phase determining pins 10 are brought into contact with a facing involute- shaped recess part. Then, the centers of both ends of the steering shaft 3 which is assembled to the tool main body 6 are supported with a pair of holding stages 13 and 13. The zero-phase point of the spline part 4 is read with an indicator at a reference surface 8 of the main body 6. The zero-phase point of the spline part 4 is aligned with the phase of a prism part 5. Thus, the machining of the prism part 5 becomes possible, and the machining whose phase deviation is within + or -3' can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spline processing shaft phase measuring tool suitable for processing an involute spline shaft of a torpedo rudder shaft.

[Conventional technology]

As shown in the sixth cross-sectional view, the steering section that steers the torpedo is provided between the rudder 1 and the steering device 2 to transfer the rotational force from the steering to the rudder 1.
A rudder axle 3 is arranged on the side of the rudder axle 3 to transmit information to the rudder axle 3, and from the relationship of rotational force and space during connection, the rudder shaft 3 shown in Fig. 7 (
I) As shown in the front view, processing of the involute spline part 4 is required, and this involute spline part 4 has 14 teeth and a pin diameter of φ1.8 when measuring the overpin. The phase with the square column part 5 connected to the device side is based on the angle of the rudder 1, so the phase is as shown in the same figure (If)
No phase shift shown in the cross-section is allowed.

However, conventionally, when machining the prismatic part 5 after machining the involute spline part 4, the center of the involute shape is made with a certain amount of wobble, and the prismatic shape is machined by matching the phase using the marked lines. However, it is desired that the phase shift between both parts 4 and 5 can be processed and measured within ±3'.

However, with conventional processing technology, it is difficult to accurately process the prismatic part 5 in accordance with the phase of the involute spline part 4 because the center line of the involute shape is marked by the basis weight. Even if an attempt is made to measure and confirm the degree of phase shift between the two parts 4°5 after processing the part 5, it is difficult to measure because it is not easy to determine the phase reference because of the involute shape.

[Problem to be solved by the invention]

The present invention was proposed in view of these circumstances, and
To provide a phase measuring tool for a spline machining axis, which can process other parts of the machining axis with high accuracy in accordance with the phase of the spline part, and can measure phase deviations between the spline part and the other parts with high accuracy. With the goal.

[Means to solve the problem]

To this end, the present invention provides a tool body in which an assembly hole is drilled in the center portion to tightly fit the spline part of the spline processing shaft, and the upper surface is formed as a measurement reference surface, and the assembly hole is provided in the tool body. a pair of phasing pins slidably disposed diametrically opposite each other from both sides of the phasing pin, means for biasing the phasing pin toward the center, and means for inhibiting the bias; The spline part is tightly fitted into the installation hole, and an indicator measurement of the phase between the reference surface and the other plane of the spline processing shaft is performed.

[Effect]

The phase of the spline machining axis, for which it is difficult to determine the phase reference, can be easily and accurately read using the reference surface of the tool of the present invention, and other parts of the machining axis can be adjusted with high accuracy according to the phase of the spline part. Not only can it be machined, but it is also possible to measure and confirm the phase shift between the spline part and other parts of the machining axis with high precision.

〔Example〕

An embodiment in which the spline processing shaft phase measuring tool of the present invention is used to measure the rudder axle will be explained with reference to the drawings. Fig. 1 is a front view of the tool, Fig. 2 is a plan view, and Fig. 3 is the phase of the rudder axle. FIG. 4 is a perspective view showing the state of measuring the deviation, FIG. 4 is an explanatory diagram of the operating procedure of the phase pin in the same as above, and FIG. 5 is an explanatory diagram of the measuring procedure in the same as above.

In FIGS. 1 and 2, the rectangular parallelepiped tool body 6 of this measuring tool has a horizontal installation hole 7 in the center of the tool body 6, which matches the diameter of, for example, the involute spline portion 4 (shown in FIG. 4) of 15.8 m. The reference surface 8 is formed on the upper surface by high-precision processing. Also, a pair of guide holes 9, 9 are provided from both ends on the longitudinal axis of the tool body 6.
A pair of phasing pins 10° 10 made of, for example, φ6 crane are inserted into the openings 9, 9 with their pointed ends facing each other, and each is pushed into the central assembly hole 7 by a pressing spring 1. Further, a fixing pin 12 that suppresses the urging of the pressing spring 11 is engaged.

The procedure for measuring the phase of the rudder axle using such a measuring tool will be explained with reference to FIGS. 3 to 5. In FIG. 4, the fixing pin 12.12 is loosened, and the phasing pin 10.10 is brought into contact with the opposing involute-shaped recess as shown in FIG.

Next, the centers of both ends of the rudder shaft 3 assembled into the tool body 6 are held by a pair of holding frames 13.
By reading with the indicator 14 at the 0 reference plane 8, the phase zero point of this involute spline section 4 and the phase of the prismatic section 5 are aligned, and the prismatic section 5 can be machined, and the phase shift is ±
Processing within 3' is possible.

Further, as shown in FIG. 5, phase zero points are read at both ends of the reference surface 8, and similarly, the phase zero points are read on the upper surface of the prismatic portion 5 with the indicator 14 to measure the phase shift value. That is, assuming that the indicator readings at both ends of the reference surface 8 are A and B, the indicator readings at both ends of the upper surface of the prismatic section 5 are C and D, the length of the reference surface is L, and the inside of the prismatic section is l, the phase shift θ is as follows. It can be calculated using the formula.

θ-tan −' (A-B) /L-tan −'
(C-D) /R Thus, according to this device, it is possible to read the phase of the rudder shaft 3 having the involute spline portion 4, for which it is difficult to determine the phase reference, using the reference surface 8 of the tool body 6. Therefore, it is possible to process the prismatic portion 5 with high precision in accordance with the phase of the involute spline portion 4, and it is also possible to measure the phase shift between the involute spline portion 4 and the prismatic portion 5 with high precision after processing. Become.

〔Effect of the invention〕

In short, according to the present invention, there is provided a tool body in which an assembly hole is formed in the center portion to tightly fit the spline portion of the spline processing shaft, and the upper surface is formed as a measurement reference surface; A pair of phasing pins slidably disposed diametrically opposite each other from both sides of the hole, means for biasing the phasing pin toward the center, and means for inhibiting the bias. , the spline part is tightly fitted into the installation hole, and the indicator measures the phase between the reference plane and the plane of the other part of the spline machining shaft, so that the other part of the machining shaft is adjusted in accordance with the phase of the spline part. The present invention is industrially extremely useful because it provides a phase measuring tool for a spline machining axis that can be processed with high precision and can also measure the phase shift between the spline part and other parts with high precision.

[Brief explanation of drawings]

Fig. 1 is a front view of the tool in one embodiment in which the spline processing shaft phase measuring tool of the present invention is used for measuring the rudder shaft;
The figure is a plan view, FIG. 3 is a perspective view showing a phase shift measurement state of the rudder shaft, FIG. 4 is an explanatory diagram of the operating procedure of the phase pin in the same as above, and FIG. 5 is an explanatory diagram of the measurement procedure in the same as above. Figure 6 is a sectional view of the torpedo steering section, Figure 7 is the rudder shaft, Figure (I) is a front view, Figure (II) is A-A in Figure (I).
, FIG. 2 is a cross-sectional view taken along line BB. 1... Rudder, 2... Steering device, 3... Rudder shaft, 4...
・Involute spline part, 5...Prismatic part, 6・
...Tool body, 7.Installation hole, 8.Reference surface, 9.
... Guide hole, 10... Phase determining pin, 11... Pressing spring, 12... Fixing pin, 13 River holding frame, 14...
...Indicators Figure 1 Figure 2 Agent Patent Attorney Masaru Tsukamoto Figure j Figure 4 Figure 6 (I) Figure

Claims (1)

[Scope of Claims] A tool body having an assembly hole in the center thereof into which the spline part of the spline processing shaft is tightly fitted, and whose upper surface is formed as a measurement reference surface; a pair of phasing pins slidably disposed diametrically opposite each other from both sides of the phasing pin, means for biasing the phasing pin toward the center, and means for inhibiting the bias; A phase measuring tool for a spline machining shaft, characterized in that a spline portion is tightly fitted into the assembling hole, and an indicator measurement of the phase between the reference surface and another plane of the spline machining shaft is performed.