JPS61271521A - Fine adjustment device for rotor - Google Patents

Abstract

PURPOSE:The rotation of a rotor is secured and to attain the miniaturization of the rotor in a non-clamp mode by extending a clamp mechanism in the radius direction of the rotor and at the same time clamping the circumferential part of the rotor over the circumferential wall from its thickness direction. CONSTITUTION:A clamper 32 contains a guide hole 34 extending in the radius direction of a holding barrel 20. While a clamper 33 contains a guide part 35 which is set into the hole 34 and a contact part 36 which presses a clamping rib 22 toward the inside from the outside. A coupling part crossing the rib 22 from the lower side is formed between both parts 35 and 36. When a clamp screw 39 is turned in its push-in direction, a contact part 38 of a clamper 32 presses the rib 22 toward the inside of the radius direction of the rib 22. While the part 36 of the clamper 33 presses the rib 22 toward the outside of the radius direction of the rib 22 respectively. Thus the barrel 20 is clamped and therefore a rotor can be rotated to a housing 19 in a non-clamp mode.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a tightening mechanism that tightens a rotating body rotatably fitted to a housing and fixes it unrotatably to the housing; The present invention relates to an improvement of a rotary body fine adjustment device including a fine movement mechanism that cooperates to finely rotate the rotary body.

(Prior Art) Conventionally, a rotating body fine movement adjustment device as shown in FIGS. 1 and 2 has been known. This rotating body fine adjustment device has a substantially cylindrical housing 1, and a holding cylinder 2 serving as a rotating body is rotatably fitted into the housing 1. The holding cylinder 2 has a glass stage 3. A tightening tool 4, which constitutes a part of a tightening mechanism, is interposed between the housing 1 and the holding cylinder 2. This tightening tool 4 has a threaded portion 5 extending in the radial direction, and a tightening screw 6 is threaded into this threaded portion 5 .

The holding cylinder 2 has a grip part 7 on its upper part, and the holding cylinder 2
Loosen the tightening screw 6, put your hand on the grip part 7 of the holding cylinder 2, and rotate it, so that its center is 0 with respect to the housing l.
It is made to rotate around the .

The tightening tool 4 has a thin portion 8 formed on the side far from the threaded portion 5. The tightening member 4 has a tightening portion 9 between the thin portion 8 and the threaded portion 5. In this device, when the tightening screw 6 is turned in a direction to bring the tip of the tightening screw 6 into contact with the holding cylinder 2, the thin part 8 of the tightening tool 4 is bent, and the tightening part 9 covers almost the entire circumferential wall of the holding cylinder 2. The holding tube 2 is tightened toward the inside in the radial direction, thereby making the holding tube 2 unrotatable with respect to the housing 1. Also.

In the direction that moves the tip of the tightening screw 6 away from the holding cylinder 2! When the tightening screw 2 is turned, the tightening of the holding cylinder 2 is loosened, and the holding cylinder 2 can be rotated with respect to the housing 1. The housing 1 is provided with a pair of attachment parts IO on both sides of the screwing part 5, and this pair of attachment parts 10 constitute a part of a fine adjustment mechanism 11. The pair of attachment parts 10 are provided with a fine adjustment screw 12 and a clamping mechanism 13 that cooperates with the fine adjustment screw 12 to clamp the threaded portion thereof. Clamping mechanism 13
The spring receiver is composed of a cylinder 14, a clamping cylinder 15 that slides with respect to the part I4, and a biasing spring 16 that biases the clamping cylinder 15 in a direction to protrude.
When the holding cylinder 2 is rotated in a direction toward the clamping mechanism 13, the holding cylinder 2 is slightly rotated in the direction of the arrow B, and when the fine movement screw 12 is turned in a direction away from the clamping mechanism 13, the holding cylinder 2 is rotated in the direction of the arrow B. be. In addition, in Figure 2, 17 is the bottom,
18 is a ring plate for holding a tightening tool.

(Problems to be Solved by the Invention) By the way, in this conventional rotating body fine adjustment device, since the tightening tool 4 is in sliding contact with substantially the entire circumference of the holding cylinder 2 as the rotating body, the tightening tool Problems include the need for a large force to release the tightening by 4 and rotate the holding tube 2, and the holding tube 2 not being able to smoothly rotate relative to the tightening tool 4, resulting in a so-called "shibu" taste. In addition to having
Since the clamping tool 4 is interposed between the housing 1 and the holding tube 2, the diameter of the housing 1 becomes larger by the amount of the tightening tool 4, making it difficult to downsize. If an attempt is made to reduce the thickness of the peripheral wall of the holding cylinder 2 for this purpose, there will be problems such as the holding cylinder 2 being deformed radially inward.

(Object of the Invention) The present invention has been made in consideration of the above circumstances, and its purpose is to be able to rotate the rotary body smoothly with respect to the casing when not tightened, and to maintain the overall performance. An object of the present invention is to provide a rotating body fine adjustment device that can be downsized.

(Means for Solving the Problems) In the rotating body fine adjustment device according to the present invention, the tightening mechanism extends in the radial direction of the rotating body, and straddles the circumferential wall of the rotating body to tighten the circumferential wall portion. It is characterized by having an M# tool that clamps it from the thickness direction.

(Function) According to this device, a part of the circumferential wall of the rotating body is tightened from the thickness direction of the circumferential wall, so the tightening tool can be slid over almost the entire circumference from the outer circumference of the rotating body. Even if the rotating body is not configured to be rotated, it is possible to tighten the rotating body to the housing so that it cannot rotate.

(Example) Hereinafter, an example of the rotating body fine movement adjustment device according to the present invention will be described with reference to the drawings.

3 and 4 show a first embodiment of the rotating body fine adjustment device according to the present invention. In FIGS. 3 and 4, 19 is a housing, and 20 is a holding cylinder as a rotating body. be. The holding cylinder 20 is rotatably fitted into the housing 19. As shown in FIG. 4, this holding cylinder 20 has a gripping part 21 formed at its upper part, a gripping rib 22 at its lower part, and a placing part 23 formed at its intermediate part. A glass stage 24 is placed on the portion 23. When the holding tube 20 is not tightened, the holding tube 20 is rotated by placing a hand on the gripping portion 21 thereof.

The housing 19 is attached to parts 25 and 26 for the fine adjustment mechanism.
The mounting portion 25 is provided with a spring receiver tube 27 and a clamping tube 28. The spring receiver of this clamping cylinder 28 is slidably fitted into the cylinder 27. In this spring receiver, a spring 29 is interposed between the cylinder 27 and the clamping cylinder 28, and the clamping cylinder 28 is biased by the spring 29 in a protruding direction. This spring holder includes a cylinder 27, a clamping cylinder 28, and a spring 29, and a clamping body (to be described later) is connected to a fine adjustment screw 30.
This constitutes a fine adjustment mechanism that works together with the clamping mechanism. The fine adjustment screw 30 is attached to the mounting portion 26.

A fastener 31 is provided between the attachment parts 25 and 26. This tightening tool 31 includes a clamping body 32 that extends in the radial direction and presses and clamps the clamping rib 22 from the outside, and a clamping body 33 that is fitted into the clamping body 32 and slides and presses the clamping rib 22 from the inside. Which division configuration is considered? The clamping body 32 is provided with a guide hole 34 extending in the radial direction of the holding cylinder 20, and the clamping body 33 is provided with a guide hole 34 extending in the radial direction of the holding cylinder 20.
A guide portion 35 that fits into the holding cylinder 20 and a contact portion 36 that presses the holding rib 22 from the inside to the outside are formed. 22
It is a connecting portion 37 that straddles from below. The tip of the clamping body 32 is bifurcated into a contact portion 38 that contacts the clamping rib 22, so that the number of contact points with the clamping rib 22 is minimized. The guide portion 35 is formed with a threaded portion 40 that threads into the tightening screw 39 . The head of the tightening screw 39 is formed with an abutting portion 39a that abuts the rear end of the clamping body 32. In this rotary body fine adjustment device, when the tightening screw 39 is turned in the pushing direction, the contact portion 38 of the clamping body 32 presses the clamping rib 22 inward in the radial direction, and the contact portion 36 of the clamping body 33 clamps the rib 22. Since the holding rib 22 is pressed radially outward, the holding cylinder 20 is tightened.

In this rotary body fine adjustment device, the tightening tool 31 is composed of a pair of clamping bodies 32 and 33 as shown in FIG. 5, and therefore, as shown in FIG. The shape of the tightening tool itself can be made smaller, and the nine-rotor fine adjustment device as a whole can also be made smaller. Also.

In the conventional tightening tool 4, as shown in FIG. 7, the tightening force is applied toward the center 0 from at least three directions far apart in the circumferential direction of the holding cylinder 22 (see arrows C, D, and E in FIG. 7). This tends to cause deformation of the holding cylinder 20 toward the center.
In the rotating body fine movement 91m device according to the present invention.

As shown in FIG. 8, the configuration is such that the clamping rib 22 is clamped at two adjacent locations from the thickness direction of the clamping rib 22, so that deformation thereof can be prevented as much as possible. Furthermore, since the entire five-rotor fine adjustment device can be made smaller, it is also possible to reduce its weight.

9 and 10 show a second embodiment of the rotating body fine adjustment device according to the present invention, in which the tightening tool 31 is divided into a clamping body 3
2.33, the clamping rib 22 is clamped by a single clamping body 41 and a tightening screw 39,
The clamping body 41 has a portion 42 that widens toward the end as the threaded portion 40 approaches the clamping rib 22.
A contact portion 43 is formed at the tip of the end-widening portion 42, and in this one, the tightening screw 37 and both ends 43a of the contact portion 43,
43a, the clamping rib 22 of the holding cylinder 20 is clamped from its thickness direction. In this second embodiment, the thickness of the clamping rib 22 is made thicker so that greater tightening is effective when it is desired to obtain torque.

11 and 12 show a modification of the second embodiment, and when a small torque is sufficient for tightening one rotating body, the holding cylinder 20 will not be deformed even if the thickness of the clamping rib 22 is made thin. Since this does not occur, the thickness of the clamping rib 22 is made thin,
In addition, the clamping body 41 is formed so that the clamping interval is as close as possible without providing the widening portion 42 at the end.

FIGS. 13 and 14 show a third embodiment of the rotating body fine adjustment device according to the present invention, in which 44 is a clamping body, 45 is a ring, and 46 is a ball. The ring 45 and the ball 46 are interposed between the grip part 21 of the holding cylinder 20 and the housing 19,
The holding cylinder 20 is designed to be able to rotate smoothly with respect to the housing 19. Here, the holding body 44 is interposed between the upper plate part 47 and the lower plate part 48. The clamping body 44 is provided with a pad 49, and the tightening screw 39 is configured to press the clamping rib 22 via the pad 49.

This prevents scratches from occurring on the outer circumferential surface of the clamping rib 22 due to pressing with the tightening screw 39. A leaf spring 50 is attached to the connecting portion 37 of the holding body 44, both ends of the leaf spring 50 are brought into contact with the lower plate portion 48, and the leaf spring 50 is attached to the contact portion 36.
The clamping body 4 moves away from the inner peripheral surface of the clamping rib 22.
It has the function of energizing 4. A regulating plate 51 is attached to the lower part of the holding body 44. This regulation plate 5I is the housing 19
It is possible to come into contact with the lower plate portion 48 of.

In this embodiment, when the tightening screw 39 is tightened, the holding rib 22 is held between the pad 49 and the abutting portion 36, and when the tightening screw 39 is loosened, the abutting portion 36 is held by the plate spring 50.
6 is separated from the clamping rib 22, and the clamping of the clamping rib 22 is released, and the regulating plate 51 extremely restricts the movement amount δ of the clamping body 44 when the clamping is released, and the clamping body 44 is clamped. It has a function of preventing the body 44 from shifting in the radial direction.

FIG. 15 shows a modification of the third embodiment, in which a coil spring 52 is provided on the clamping body 44 instead of the plate spring 50, and the lower plate portion 48 is urged via the push pin 53, and the repulsive force , the clamping body 44 is biased toward the center, and the biasing force can be adjusted by a force adjustment screw 54.

(Effects of the Invention) As described above, the rotating body fine adjustment device according to the present invention has an M# mechanism that extends in the radial direction of the rotating body and straddles the circumferential wall of the rotating body. Since it has a tightening tool that clamps the part from its thickness direction, the rotating body can be rotated smoothly relative to the casing when not tightened, and the overall size can be made smaller. In addition, it also has the effect of reducing weight.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a conventional rotary body fine adjustment plate device, FIG. 2 is a cross-sectional view taken along line m-n in FIG. 1, and FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, FIG. 5 is an exploded perspective view of the tightening device shown in FIG. 3, and FIG. 6 is shown in FIG. 1. A perspective view of the tightening tool, FIGS. 7 and 8 are comparative illustrations of a conventional rotating body fine adjustment device and a rotating body fine adjustment device according to the present invention, and FIGS. 9 and 10 are diagrams according to the present invention. 11 and 12 are views showing a modification of the second embodiment, and FIG. 13 is a sectional view showing a second embodiment of the rotating body fine adjustment device. Cross-sectional view showing 3rd embodiment, 1st
4 is a bottom view of the rotating body fine adjustment device shown in FIG. 13, viewed from the direction of arrow X, and FIG. 15 is a partial view showing a modification of the rotating body fine adjustment device shown in FIG. 14. 19... Housing 20... Holding tube 22.
...Pinching rib 25.26...Mounting part 27...
・The spring holder is a cylinder 28...The clamping cylinder body 29...
Spring 30... Fine adjustment screw 31... Tightening tool 32... Clamping body 33... Clamping body
34... Guide hole 35... Guide part
38... Contact portion 39... Tightening screw Fig. 1 I¥2 sentence Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 8 5'':j Fig. 12 Fig. 11 Fig. 13 Fig. 15

Claims (1)

[Claims] (1) A tightening mechanism that tightens a rotating body that is rotatably fitted to a casing and fixes it unrotatably to the casing, and a fine movement mechanism that cooperates with the tightening mechanism to slightly rotate the rotating body. In the rotating body fine adjustment device, the tightening mechanism includes a tightening tool extending in the radial direction of the rotating body and straddling the peripheral wall of the rotating body and clamping the peripheral wall portion from the thickness direction. A rotating body fine adjustment device characterized by: