JP3003899B2 - Mounting jig for half-split type polishing roll - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

A. This invention relates to a cylindrical buff or brush, which is formed in a half-split shape, is attached to a rotating shaft in a sandwiched manner, and forms the surface of the workpiece by rotary polishing. More specifically, the present invention relates to a jig provided for attaching the half-split type polishing roll to a rotating shaft.

(2) Prior Art Generally, a half-split type polishing roll R has a configuration shown in FIGS. 11 to 13 and is attached to a rotating shaft S as shown in FIG. That is, FIGS.
With reference to 3, the half-split type polishing roll R is composed of half-split bodies Ra and Rb divided into a plane including a rotation axis, and each half-split body Ra and Rb is formed of a metal base. 100 and a polishing body 102 of a buff or a brush attached to the outer periphery of the base portion 100. At both ends of the base portion 100, bolt insertion holes 104 are formed in a radially penetrating manner. The nut 110 is fixed to the rotating shaft S by tightening a nut 110 into an assembling bolt 108 inserted into the bolt insertion hole 106 of the shaft S 104 and the corresponding shaft S.

[0003] However, in the mounting operation of this half-split type polishing roll R, a small and lightweight one has conventionally occupied a large part, so no special jig is used and it is a manual operation. there were. For this reason, it is difficult to work with this kind of polishing roll which is large and heavy, and it is difficult to work with the lower part of the polishing roll which is arranged vertically above and below the workpiece to be polished. Combined with the narrowing of the space, it becomes even more difficult.

(3) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned circumstances, and in this kind of work for mounting a half-split type polishing roll, the work is simplified, and It is an object of the present invention to provide a jig capable of speeding up the operation.

B. Structure of the Invention (1) Means for Solving the Problems The half-split type polishing roll mounting jig of the present invention employs the following structure to achieve the above object. That is, it is composed of two semi-annular bodies that are opposed to each other and constitute an annular body. One semi-annular body has its inner diameter along the outer edge thereof equal to the outer diameter of the base portion of the half-split type polishing roll. Substantially equal flanges are protruded,
One of the abutting portions is pivotally mounted with a pin and can be opened and closed in a semi-open state with the pin as a center. The other abutting portion extends over the two semi-annular bodies and An opening / closing mechanism for fixing and opening the rings is provided.

(2) Operation In mounting the half-split type polishing roll to the rotating shaft, the two mounting jigs are mounted while maintaining a predetermined interval and their flanges facing each other. At this time, the mounting jig can be opened and closed in a half-open state and can be closed immediately by the opening and closing mechanism, so that this mounting operation is easy.
One half of the half-grinding type polishing roll is supported by the flange of this mounting jig, the rotation shaft and the bolt insertion hole of the polishing roll are matched, and then the other polishing roll is united, and these bolt insertion holes are inserted. Insert the mounting bolt,
The polishing roll is integrated by tightening the nut. Thereafter, the mounting jig is removed.

(3) Embodiment An embodiment of a jig for mounting a half-split type polishing roll according to the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 5 show a mounting jig (hereinafter simply referred to as "mounting jig") for a half-split type polishing roll according to one embodiment (first embodiment). 1 and 2 show its external configuration, FIGS. 3 and 4 show its internal configuration, and FIG. 5 shows its partial configuration.

Referring to FIGS. 1 to 5, this mounting jig W
Is mainly composed of a ring-shaped body 1 formed of two halves, and a flange 2 is formed on one of the half-rings (so-called lower half-ring).
An opening / closing mechanism 3 and a shaft fixing mechanism 4 are provided.

Hereinafter, the detailed configuration of each part will be described. The annular body 1 is composed of an upper semi-annular body 6 and a lower semi-annular body 7 having a predetermined thickness, and these semi-annular bodies 6 and 7 are provided with a pin 8 at one abutting portion. And can be freely opened and closed in a half-open state. When the semi-annular bodies 6 and 7 are closed to each other to form the annular body 1, a circular hole 1a is formed at the center thereof. The circular hole 1a has a clearance slightly smaller than the outer diameter of the rotating shaft S.

The lower semi-annular body 7 has a flange 2 protruding along the outer edge thereof. The collar 2 has a substantially semicircular shape, the inner diameter of which matches the outer diameter of the base of the polishing roll R, and supports the load of the polishing roll R. As shown in detail in FIG. 5 (a), an operation hole 9 opened in the outer edge 2a is formed in the center of the flange 2 so that a nut for attaching the polishing roll R to an assembly bolt is assembled. It is what is inserted. The operation hole 9 of this embodiment has a sufficiently large width, but when the operation hole 9 has a width of the nut, the rotation of the nut is restricted.

Opening / closing mechanism 3 The opening / closing mechanism 3 is provided at the other abutting portion of the semi-annular bodies 6 and 7, and is tiltable and disposed over the two semi-annular bodies 6 and 7. The two semi-annular bodies 6 and 7 can be freely opened and closed by a simple manual operation, mainly including a screw rod 10 and a tightening nut 11 screwed to the screw rod 10. More specifically, at the abutting portion of the semi-annular bodies 6 and 7, the upper semi-annular body 6 is formed with a flange 14 having a cutout recess 13, and the flange 14 has a groove 15 opened on the outer peripheral surface. Is recessed. A groove 16 is also formed in the lower semi-annular body 7, corresponding to the groove 15, and is also opened on the outer peripheral surface. A pin 17 is laid across the groove 16. The screw rod 10 is
A base portion 10a and a screw portion 10b;
A pin 17 is inserted through the screw rod 10 and the screw rod 10 is tilted about the pin 17 (in the direction A in FIG. 1) so that the screw rod 10 can enter and exit the grooves 15 and 16. The screw portion 10b of the screw rod 10 is a flange portion 14.
And the tightening nut 11 is screwed in,
With the screw rod 10 disposed in the grooves 15 and 16, the tightening nut 11 is rotationally tightened so that the bottom surface thereof is pressed against the flange portion 14 of the upper semi-annular body 6, and the semi-annular bodies 6 and 7 are integrated with each other. Make

[0012] shaft fixing mechanism 4 shaft fixing mechanism 4, screw holes 19 in the radial direction at a central position of the upper semicircular member 6 is screwed, fixing bolts 20 into the screw hole 19 is formed by screwed. By tightening the fixing bolt 20, the fixing bolt 20 is advanced toward the center of the ring, and the tip end surface thereof is pressed against the rotating shaft S to thereby form the annular body 1
The position is fixed.

The mounting jig W of the present embodiment having the above-described structure is used and works as follows when mounting a half-split type polishing roll. 6 and 7 show the procedure. In the figure, S is a rotating shaft, R is a half-split type polishing roll attached to the rotating shaft S, and R
a and Rb are the halves thereof. The configuration of the shaft S and the half-split type polishing roll R conforms to the conventional one shown in FIGS.

First, a description will be given based on the operation procedure of the standard mode. (1) The mounting jig W is mounted on the rotating shaft S with the flanges 2 facing each other. That is, the opening / closing mechanism 3 of the mounting jig W
Then, the shaft fixing mechanism 4 is opened, the semi-annular bodies 6 and 7 are opened, the circular hole 1a is fitted to the rotating shaft S, and the opening and closing mechanism 3 is operated to close. That is, the tightening nut 1
1 causes the screw rod 10 which has been loosened and fallen down, tightens the tightening nut 11, and the upper semi-annular body 6
Of the semi-annular bodies 6, 7 are integrated with each other. At this time, the collar 2 is below. In this state, the mounting jig W is slidable along the shaft S.

(2) As shown in FIG. 6, the lower body Rb of the polishing roll R is brought into contact with the lower side of the rotating shaft S, and the mounting jigs W on both sides are shifted inward toward the polishing roll R. (B direction of FIG. 6), the flange 2 is brought into contact with the base portion 100 of the polishing roll R, and the load of the polishing roll R is received by the flange 2. At this time, the bolt insertion hole 106 of the rotary shaft S
And the bolt insertion hole 104 of the polishing roll R are aligned. (3) Tighten the fixing bolt 20 of the shaft fixing mechanism 4,
The fixing jig W is fixed at the predetermined position.

(4) The upper body Ra of the polishing roll R is brought into contact with the rotation shaft S from above, and the bolt insertion holes 104 of the upper body Ra and the bolt insertion holes 106, 104 of the rotation shaft S and the lower body Rb coincide. After confirming that
The bolt 108 is inserted and tightened by the nut 110. FIG. 7 shows this state. (5) Remove the mounting jig W. That is, the fixing bolt 20 of the shaft fixing mechanism 4 is loosened, and then the tightening nut 11 of the opening / closing mechanism 3 is loosened and the screw rod 10 is lowered. Thus, the half-split type polishing roll R is attached to the rotating shaft S in a predetermined state.

When the location of the polishing roll is located below the workpiece to be polished, that is, the work, the lower body Rb of the polishing roll is
The work from below is difficult. In this case, work is performed in the following manner.

(1A) The main mounting jig W is mounted on the rotating shaft S with the flanges 2 facing each other. At this time, the flange 2 is at the upper side, but may be initially at the lower side, and thereafter may be inverted and moved upward. (2A) The lower body Rb of the polishing roll R is brought into contact with the rotating shaft S from the upper side, and the mounting jigs W on both sides are arranged such that the flange 2 covers the base portion 100 of the polishing roll R, and the The bolt insertion holes 104 and 106 are positioned so as to coincide with each other. (3A) Tighten the fixing bolt 20 of the shaft fixing mechanism, and then rotate the rotating shaft S half a turn to move the lower body Rb of the polishing roll R downward. (4A) The upper body Ra of the polishing roll R is brought into contact with the rotation shaft S from above, and the bolt insertion holes 104 of the upper body Ra and the bolt insertion holes 10 of the rotation shaft S and the lower body Rb are formed.
After confirming that 6,104 match, the bolt 108
And tightened by the nut 110. (5A) Remove the mounting jig W. That is, the fixing bolt 20 of the shaft fixing mechanism 4 is loosened, and then the tightening nut 11 of the opening / closing mechanism 3 is loosened and the screw rod 10 is lowered.

Since the mounting jig W of this embodiment exhibits the above-mentioned function, the rotating shaft S of the polishing roll R
At the time of attachment to the polishing roller R, the half-split body of the polishing roll R can be reliably supported by the mounting jig W, and the polishing roll R and the bolt insertion holes 104, 1 of the rotary shaft S
06 is easy to align. As a result, it is possible to cope with an increase in the size of the polishing roll R, and the mounting work of the polishing roll R becomes easy. In addition, the operation of attaching and detaching the mounting jig W to and from the rotating shaft S is easy, and the working efficiency is improved accordingly. By using the mounting jig W itself, the operation of attaching the lower polishing roll installed below the work, which has been particularly difficult, becomes much easier.

In the present embodiment, the operation hole 9 is provided in the flange 2, but the operation hole is not limited to this mode, and an operation hole shown in FIGS. 5B and 5C may be employed. That is, the operation hole 2 shown in FIG.
In No. 2, the groove width is equal to the nut width, and the inner part thereof is polygonal to restrain the nut. In the operation hole 23 shown in FIG. 5 (c), a mode of a hole formed inside the flange 2 is employed. When the flange 2 is short, or when the polishing roll R
When the bolt insertion hole is located deeper than the end face, the operation hole can be omitted.

(Other Embodiment) FIGS. 8 to 10 show another embodiment (second embodiment) of the mounting jig. The same members as those in the first embodiment are denoted by the same reference numerals. The mounting jig W1 of this embodiment is characterized by an opening and closing mechanism.
That is, the opening / closing mechanism 3A employs a so-called binder mechanism, and the upper semi-annular body 6 is attached to a fastener 25 fixed to the peripheral surface of the upper semi-annular body 6 in a swingable manner. On the other hand, the lower semi-annular body 7 is undulated freely via a pin 28 of a fastener 27 fixed to its peripheral surface.
Is attached. When the body 26 and the body 29 are disengaged, the semi-annular bodies 6 and 7 are opened. When the semi-annular bodies 6 and 7 are closed to each other, the tongue piece 29a of the raised anchor 29 is hung on the anchor 26 and the anchor 29 is pulled down to thereby lock the anchor 26.
The semi-annular bodies 6, 7 are attracted to each other to fix them. In this state, the engaging body 29 is disengaged by raising the engaging body 29, and the semi-annular bodies 6, 7 are released from each other. The above operation is easily performed by manual operation.

The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical concept of the present invention. That is, the following embodiments are included in the technical scope of the present invention. The flange 2 is not limited to a semicircular length, and may have a length sufficient to support the base portion 100 of the polishing roll R. An embodiment in which the opening / closing mechanism is the same when the mounting jigs W are mounted on the rotating shaft S so as to face each other.

C. Effects of the Invention According to the jig for mounting a half-split type polishing roll of the present invention, the half-split body of the polishing roll is securely supported by the mounting jig when the polishing roll is mounted on the rotating shaft. Can be. Moreover, the centering of the bolt insertion holes of the polishing roll and the rotary shaft is facilitated. As a result, it is possible to cope with an increase in the size of the polishing roll, and the work of mounting the polishing roll becomes easy.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire configuration of a jig for mounting a half-split type polishing roll according to an embodiment (first embodiment) of the present invention.

FIG. 2 is a view taken in the direction of arrow II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a cross-sectional view of a main body of the mounting jig.

FIG. 5 is a plan view showing various modes of operation holes described in a collar.

FIG. 6 is a view showing a procedure for mounting a half-split type polishing roll performed using the mounting jig of the present embodiment.

FIG. 7 is a diagram showing a mounting procedure of a half-split type polishing roll performed using the mounting jig of the present embodiment.

FIG. 8 is a front view of another embodiment (second embodiment) of the present invention.

FIG. 9 is a view taken in the direction of the arrow IX in FIG. 8;

FIG. 10 is an operation diagram of the opening / closing mechanism of the present embodiment.

FIG. 11 is a longitudinal sectional view showing a general configuration of a half-split type polishing roll R.

FIG. 12 is a sectional view taken along line XX of FIG. 11;

FIG. 13 is a sectional view taken along line YY of FIG. 11;

[Explanation of symbols]

W, W1: Mounting jig for a half-grinding type polishing roll, 1 ... Annular body, 2 ... Flange, 3, 3A ... Opening / closing mechanism, 4 ... Shaft fixing mechanism, 6 ... Upper semiannular body, 7 ... Lower semicircle Ring, 8 ... pin,
9, 22, 23: Operation hole, 10: Screw rod, 11: Tightening nut, 20: Fixing bolt, S: Rotating shaft, R: Half-cut polishing roll, Ra, Rb: Half-split body, 100: Base

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-60-242927 (JP, A) JP-A-6-169817 (JP, A) JP-A-3-245975 (JP, A) JP-A-50- 82691 (JP, A) Japanese Utility Model Showa 62-121064 (JP, U) Japanese Utility Model Showa 59-100560 (JP, U) Japanese Patent Publication 46-38477 (JP, B1) Japanese Utility Model Showa 50-33753 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B24D 13/20 B24B 45/00 B24D 13/02

Claims (5)

(57) [Claims] 1. A jig used for attaching a half-split type polishing roll to a rotating shaft, comprising two semi-annular bodies facing each other and forming an annular body. A flange is provided on the body along the outer edge thereof, the inner diameter of which is substantially equal to the outer diameter of the base portion of the half-grinding type polishing roll, and one abutting portion is pivotally attached with a pin. The center is made openable and closable in a semi-open state, and the other abutting portion is provided with an opening / closing mechanism that straddles the two semi-annular bodies and fixes and opens these semi-annular bodies to each other. And a jig for mounting a half-split type polishing roll. 2. A mounting jig for a half-split type polishing roll according to claim 1, wherein the opening / closing mechanism comprises a screw rod and a tightening nut. 3. The jig according to claim 1, wherein the opening and closing mechanism is of a binder type. 4. A jig for mounting a half-split type polishing roll according to claim 1, wherein a fixing bolt which advances and retreats in a radial direction is screwed to the other semi-annular body. 5. The mounting jig for a half-split type polishing roll according to claim 1, wherein an operation hole corresponding to the bolt insertion hole is formed at a fixed position in a flange of one of the semi-annular bodies.