JPH0623410Y2 - Lapping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lapping device for lapping a work such as a VTR head or a shaft member.

[Conventional technology]

Conventionally, this type of lapping device has a work such as a VTR head disposed on the outer peripheral portion of a rotating body, a pair of support arms provided on both sides of the rotating body, guide rollers provided on the support arms, and a space between the guide rollers. There is a wrapping tape that can be run, and a work can be lapped by the wrapping tape located between the guide rollers.

[Problems to be solved by the invention]

However, in the case of the above-mentioned conventional structure, as shown in FIGS. 8 and 9, three heads of the work 2 are arranged on the outer peripheral portion of the rotary body 1, and the lapping surface 3 of the work 2 is projected from the hole 4 of the rotary body 1. The lapping tape 5 is arranged by pressing the lapping tape 5 while rotating the rotating body 1, and the lapping surface 3 is lapped as shown in FIG. As shown in FIG. 12, the lapping surface 3 may be biased to the upper or lower side, which may have an adverse effect on the characteristics of the VTR head.

[Means for solving problems]

The present invention is intended to eliminate these inconveniences, and the gist thereof is to dispose a work 2 on the outer peripheral portion of a rotary body 1 and to provide a pair of support arms 13 on both sides of the rotary body 1. The supporting arms 13 are provided so as to sandwich the rotating body 1 so as to face each other, and the guide rollers 17 are provided inside the tip end portions of the respective supporting arms 13, and the wrapping tape that runs while being supported by the guide rollers 17. 5 is provided between the guide rollers 17, and the wrapping tape 5 located between the guide rollers 17 is wound around the outer peripheral surface of the rotating body 1 in a predetermined range so as to be in contact with the wrapping tape 5 so that the work 2 is lapped by the wrapping tape 5. In the lapping device configured as described above, the supporting arms 13 facing each other are rotatably provided with a base as a fulcrum.
Of the support arm 13 is provided with an adjustment shaft 18, and the adjustment bracket 18 is provided with a mounting bracket 20 in a protruding state toward the inside facing the adjustment shaft 18. The guide roller 17 is provided, and the mounting bracket 20 is rotatably provided in the direction in which it comes in contact with and separates from the inner portion of the support arm 13, and the mounting bracket 20 can be fixed at the rotational position. 2 is configured to be adjustable by fixing and fixing the rotation position of the mounting bracket 20, and the guide shaft is attached to the adjusting shaft 18.
A detour guide roller 19 for guiding the wrapping tape 5 is provided on the wrapping device 17.

[Action]

Adjust the position of the guide roller 17 with respect to the support arm 13
Is determined by rotationally adjusting and fixing the mounting bracket 20 to a rotational fulcrum, and the opposing spacing of the guide rollers 17 is adjusted by rotationally adjusting the support arms 13 to adjust the wrapping tape 5 and the lapping surface of the work 2. The pressure contact state is changed.

〔Example〕

 1 to 6 show an embodiment of the present invention.

In addition, the same reference numerals are given to the same mode parts as in FIG. 8 to FIG.

Reference numeral 1 denotes a rotating body. The rotating body 1 is rotatably provided at the center of a machine base 6, three works 2 as heads are arranged on the outer peripheral portion of the rotating body 1, and a lapping surface 3 of the work 2 is provided. Rotating body 1
It is arranged so as to protrude from the hole 4.

7 is a mounting base, which is provided with a tape reel 8 of the wrapping tape 5 and a take-up reel 9 of the wrapping tape 5 on both left and right sides of the mounting base 7, and two mounting shafts 10 on the rotating body 1 side of the mounting base 7. Side-by-side installation, the worm wheel 11 is attached to each mounting shaft 10, and a worm (not shown) capable of simultaneously meshing with both worm wheels 11 is provided between the worm wheels 11.
A worm is provided so that it can be rotated forward and backward by the opening and closing motor 12,
A pair of support arms 13 is attached to each mounting shaft 10 by bolts 14 and long holes 15.
The position is fixed so that the position can be adjusted, and the stopper 16 is provided on the mounting base 7.
Can be opened and closed, and the stopper 16 can adjust the closed position of the support arm 13 to adjust the wrapping angle of the wrapping tape 5 around the rotating body 1.

In this case, the mounting bases 7 similar to those described above are arranged so as to face each other, and the lapping tapes 5 are different from each other to allow rough and finish lapping.

Reference numeral 17 denotes a guide roller, in which case an adjustment shaft 18 is provided at the tip of the support arm 13, a detour roller 19 is provided at the adjustment shaft 18, and a mounting bracket 20 is fixed to the adjustment shaft 18 so that the rotational position can be adjusted. , Attach the frame 21 to the mounting bracket 20
It is fixed so that it can be rotated vertically by the guide roller on the frame 21.
17 is provided, and the guide roller 17 is provided by adjusting the rotational position of the frame 21.
The tilt is adjustable.

Reference numeral 23 denotes a stopper roller, which is provided on the mounting base 7 and supports the wrapping tape 5 when the pair of support arms 13 are opened.

Since this embodiment has the above configuration, the rotating body 1 is rotated,
Further, when the support arm 13 is closed while the wrapping tape 5 is running, the wrapping tape 5 located between the guide rollers 17 is wrapped around the rotating body 1 at a wrapping angle of about 180 degrees in this case, and the wrapping surface 3 of the work 2 is attached. If the lapping can be performed and the lapping surface 3 becomes an uneven surface as shown in FIGS. 11 and 12, the lapping tape 5 is adjusted by adjusting the inclination of the guide roller 17 around the mounting bolt 22 as shown in FIG.
Can be finely adjusted, and the pressure contact state between the wrapping tape 5 and the wrapping surface 3 of the work 2 can be varied, so that an appropriate wrapping surface 3 can be obtained.

[Effect of device]

According to the present invention, as described above, when the rotating body is rotated and the support arm is closed while the lapping tape is running, the wrapping tape located between the guide rollers is wrapped around the rotating body and the lapping surface of the work can be lapped. The position of the guide roller with respect to the work can be adjusted by the tilt rotation adjustment of the support arm and the rotation adjustment fixation of the mounting bracket, whereby the traveling angle of the wrapping tape with respect to the work can be finely adjusted. Therefore, the pressure contact state (lapping state) such as the pressure contact strength between the wrapping tape and the lapping surface of the workpiece and the degree of pressure contact by varying the winding contact length of the rotating body of the wrapping tape (lapping state) is set between the support arm and the mounting bracket. With two movements, fine adjustment can be set easily with high precision, and therefore an appropriate lapping surface can be obtained.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is an overall plan view, FIG. 2 is a plan view of an essential part thereof, FIG. 3 is a sectional view of the essential part thereof, and FIG. 4 is an essential part thereof. FIG. 5 is a front view of an essential part thereof, FIG. 6 is a perspective view of the essential part thereof, FIG. 7 is a perspective view of a work, FIG. 8 is a perspective view of a lapping state, and FIG. Longitudinal sectional views, and FIGS. 10, 11 and 12 are partial sectional views of the work. 1 ... Rotator, 2 ... Work, 5 ... Wrapping tape, 13 ... Support arm, 17 ... Guide roller, 18 ... Adjustment shaft, 19 ... Detour guide roller, 20 ... Mounting bracket.

Claims (1)

[Scope of utility model registration request] 1. A work is arranged on an outer peripheral portion of a rotating body, a pair of supporting arms are provided at both side positions of the rotating body, and the supporting arms are arranged in a facing state at a position where the rotating body is sandwiched. A guide roller is provided inside the tip of each of the support arms, a wrapping tape that travels while being supported by the guide roller is provided between the guide rollers, and the wrapping tape located between the guide rollers is within a predetermined range on the outer peripheral surface of the rotating body. In a lapping device arranged so as to be in contact with each other in a wound state so that a work is wrapped by a lapping tape, the opposing support arms are rotatably provided with a base as a fulcrum so that a tip interval of the support arms can be adjusted. Each of the support arms is provided with an adjustment shaft at each tip thereof, and a mounting bracket is provided so as to project toward the inside facing the adjustment shaft. An id roller is provided, and this mounting bracket is rotatably provided in the direction in which it comes in contact with and separates from the inner side of the support arm, and the mounting bracket can be fixed at that rotational position. A lapping device, which is configured to be adjustable by adjusting a rotational position of a bracket and is provided with a detour guide roller for guiding a lapping tape to the guide roller on the adjustment shaft.