JP3245981B2 - Guide roller support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide roller supporting device for transferring a belt to be transferred such as a magnetic tape.

[0002]

2. Description of the Related Art A guide roller is used as a means for guiding the transfer of a magnetic tape of a video tape recorder or a video camera. However, in order to cope with a higher precision and a narrower transfer of a magnetic tape, the guide roller is used. Miniaturization and high precision are being achieved. When manufacturing the guide roller, a support device for clamping the guide roller is necessary for rotation adjustment such as inspection and polishing.

[0003]

The guide roller support device needs to have a high rotation accuracy and a high working performance for inspection and adjustment.

[0004] Accordingly, the present invention provides a support shaft having an upper end portion and a middle portion.
A flange is attached to each space and
Rollers are mounted rotatably on the support shaft between the flanges
Guide to transfer a belt to be transferred such as a magnetic tape
During rotation adjustment test and polishing etc. Dorora guide rollers
And to provide a bunch lifting and supporting device of the guide roller with improved controllability of the release.

[0005]

According to the present invention, there is provided a guide roller supporting device which is provided at an upper end portion and an intermediate portion of a support shaft (8).
Flanges (upper flange 10, lower flange 12)
Mounted on the support shaft between the flanges
A roller (roller body 16) is rotatably attached,
A guide row for transporting a strip to be transported such as a magnetic tape
A guide roller support device for rotatably supporting the guide roller at the time of inspection or rotation adjustment of polishing (2), wherein the support protrudes toward a flange side of the intermediate portion.
Insert and grip the entire shaft and hold the guide roller
A chuck (collet chuck 4), and a guide roller held by the chuck in conjunction with a rotating means (pulley 34), and the guide roller is rotated together with the chuck; and
A chuck opening / closing mechanism (6) that is provided so as to be able to advance and retreat in the center direction of the chuck and closes the chuck when moved in one direction, and opens the chuck when moved in the other direction. And

Further, the guide roller support device of the present invention has a flank at the upper end and an intermediate portion of the support shaft (8).
(Upper flange 10, lower flange 12)
And can rotate on the support shaft between the flanges
The roller (roller body 16) is attached to the
Guide roller (2) for transporting belts to be transported
Rotatably supporting the guide roller during rotation adjustment test and polishing etc., a support device of the guide roller, before
All of the support shafts protruding toward the flange side of the intermediate portion.
An opening / closing operation section (22) forming a first tapered surface (20) for opening and closing the grip section is provided behind a grip section (18) that grips the support shaft of the guide roller by inserting and gripping the support shaft of the guide roller. A chuck (collet chuck 4), a second tapered surface (24) corresponding to the first tapered surface of the opening / closing operation portion of the chuck, and a drawbar (26); A chuck opening / closing mechanism (6) for bringing the second tapered surface into contact with the surface and moving the drawbar forward and backward to open and close the chuck.

[0007]

The guide roller is provided with a support shaft for rotational support, and the support shaft protrudes from the roller body by a predetermined length. Therefore, the guide roller support device is configured to be detachably and rotatably held by a chuck with a support shaft, similarly to the actual use state. The chuck moves the chuck opening / closing mechanism back and forth to open and close it, and holds and releases the guide roller.

Further, in the guide roller supporting device of the present invention, an opening / closing operation portion having a first tapered surface is provided behind the grip portion of the chuck, and a second opening / closing operation portion corresponding to the opening / closing operation portion is provided.
And a chuck opening / closing mechanism having a drawbar having a tapered surface. Therefore, when the drawbar advances and retreats under the driving force, the chuck is opened and closed according to the advance and retreat,
The guide roller is gripped and released.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

FIG. 1 shows an embodiment of a guide roller supporting apparatus according to the present invention. A collet chuck 4 is attached to the guide roller support device as a chuck for gripping the guide roller 2 on the upper end side as a gripping mechanism for the guide roller 2. Below the collet chuck 4, the collet chuck 4 is mounted. A chuck opening / closing mechanism 6 that rotates the guide roller 2 together with the collet chuck 4 by receiving a rotational driving force during opening / closing and clamping is provided.

As shown in FIG. 2, the guide roller 2 has an upper flange 10 fixed to the upper end side of the support shaft 8 and a lower flange 12 fixed at an intermediate position.
A roller body 16 rotatably supported by a cylindrical bearing portion 14 is attached within the interval 12, and the lower end of the support shaft 8 protrudes from one of the roller bodies 16 by a predetermined length. Therefore, the collet chuck 4 is provided with a gripper 18 for gripping the support shaft 8 and clamping the guide roller 2, and has a first tapered surface 20 gently toward the rear side at an intermediate portion thereof. Accordingly, a frustoconical opening / closing operation portion 22 having a small diameter is formed.

A chuck opening / closing mechanism 6 for opening / closing the collet chuck 4 has an operating shaft means having a conical concave portion formed with a second tapered surface 24 corresponding to the tapered surface 20 of the opening / closing operation portion 22. Drawbar 26 is provided. A support hole 28 is formed in the draw bar 26 to support the collet chuck 4 so that the collet chuck 4 can move forward and backward. In this support hole 28, a shaft 30 of the collet chuck 4 is elastically connected via a coil spring 32 as elastic support means. Is supported. That is, when the draw bar 26 is moved upward, the moving force acts on the collet chuck 4 side via the coil spring 32 to move the collet chuck 4 upward. At this time, the collet chuck 4 is closed and the guide is moved. The roller 2 enters the clamp state. A pulley 34 is attached to the lower end of the drawbar 26 as a rotating means for receiving a driving force for rotation or vertical movement, and a drive belt 36 is hung around the pulley 34. A flange 38 is attached to the pulley 34 to prevent the drive belt 36 from coming off. That is, by the operation of the drive belt 36, the drawbar 26 moves up and down as shown by the arrow A, and the state shown in the drawing shows the upward movement, that is, the clamp state of the guide roller 2.

In this supporting device, a chuck case 40 is provided on the collet chuck 4 side as a rotation supporting mechanism and a protection means for the collet chuck 4 and the chuck opening / closing mechanism 6 with respect to the gripping mechanism of the guide roller 2. . The projection length of the collet chuck 4 is set to be long as a measure to reduce shielding when inspecting the guide roller 2 using an optical inspection device (not shown), and at the same time, the chuck case 40 also has a conical shape. The chuck case 40 is fixed with a bolt 45 to a cylindrical intermediate case 42 via a support ring 44. A lower case 46 is attached to the lower side of the intermediate case 42, and a flange 48 is attached between the intermediate case 42 and the lower case 46 as a means for fixing on a support such as an inspection device. I have. The flange 48 is provided with a plurality of mounting holes 50 through which bolts as fixing means pass.

Inside the intermediate case 42, a drawbar 26 is provided.
The deep groove ball bearings 52, 54 are attached at fixed intervals as rotation support means for rotatably supporting the bearings, and in order to maintain a fixed interval between the deep groove ball bearings 52, 54 and prevent rotational runout. Of the rotary cylinder 56 is provided. A lock nut 57 is fixed to the draw bar 26 below the deep groove ball bearing 54, and the deep groove ball bearings 52 and 54 are pressed against the support ring 44. Also, the lower case 4
6, a thrust bearing 58 is provided, and a press-contact spring 60 for pushing up the collet chuck 4 is provided between the lower side of the thrust bearing 58 and the lower case 46.

With the above-described structure, the drawbar 26
When the collet chuck 4 moves upward, the collet chuck 4 is closed and grips the support shaft 8 of the guide roller 2 to be in a clamped state. Further, the collet chuck 4 moves downward by the downward movement of the draw bar 26, and the gripping force is reduced. The guide roller 2 is released and the clamp of the guide roller 2 is released. Therefore,
By applying a driving force in the forward and backward directions to the drawbar 26 with the driving belt 36, the guide roller 2 is supported by the support shaft 8.
Can be held or released.

The pulley 34 is moved by the drive belt 36.
, The guide roller 2 in a clamped state can be rotated together with the collet chuck 4 in a predetermined direction.

FIGS. 3 and 4 show an example of an inspection apparatus provided with a guide roller support device. This inspection apparatus includes a disk-shaped index table 62.
Is installed rotatably, and the index table 62
Is provided with a support device 64 shown in FIG. Around the index table 62, pallet placement sections 66, 68 for placing a pallet on which the guide rollers 2 are placed, and supply of the guide rollers 2 from the pallet placement section 66 to the support device 64 side. Robot 69, guide roller flange interval inspection device 70, drive device 72 for rotating index table 62, appearance inspection device 74 for inspecting the correctness of the appearance of guide roller 2, and pallet mounting portion for guiding roller 2 from support device 64 side A take-out robot 75 to be taken out, a TV monitor device 76 for monitoring camera images of the flange interval inspection device 70 and the visual inspection device 74, and an operation panel 78 for instructing various control operations are provided.

FIGS. 6 and 7 show the chuck portion of the supply robot 69 for the guide roller 2. FIG. A chuck support 82 attached to the Y-axis arm 80 and moving in the vertical direction is installed on the chuck, and the chuck support 82 has a negative pressure P applied to the pipe 85 side.
Thus, a suction chuck 84 for sucking the guide roller 2 is supported. Reference numeral 86 denotes a seating portion of the guide roller 2 on the pallet placing portions 66 and 68. The guide roller 2 as a work is carried between the seating portion 86 and the collet chuck 4 of the support device 64. At this time, the Y-axis arm unit 80 is moved with the X-axis arm unit in a predetermined direction, that is, in the X-axis direction. Reference numeral 88 denotes a cylinder device for performing movement in the Y-axis direction.

As described above, the support device 64 is used in an inspection device for a guide roller, etc., and reliably supports the guide roller 2 during the inspection to assist necessary inspection. In cooperation with the supply robot 69, the guide roller 2 as a work to be supported and transported can be gripped and released.

[0020]

As described above, according to the present invention,
Flanges are attached to the upper and middle parts of the support shaft, respectively.
And can rotate on the support shaft between the flanges
Roller attached, belt shape to be transferred such as magnetic tape
Inspection of the guide rollers that transport the body and during rotation adjustment such as polishing
The solid and reliably gripped with a the support shaft guide rollers
It is possible constant, it is possible to perform the release, it is possible to improve the controllability of the gripping and releasing of the guide rollers.

Further, in the present invention, the upper end portion and the middle portion of the support shaft are provided.
A flange is attached to each of the
Rollers are rotatably mounted on the support shaft between the flanges.
Guides for transporting strips to be transported, such as magnetic tapes
At the time of rotation adjustment such as inspection or polishing of the roller, the guide roller is gripped and released only by moving the drawbar having the second tapered surface corresponding to the first tapered surface on the opening / closing operation portion side of the collet chuck. The controllability can be improved, and at the same time, it is possible to contribute to the improvement of the reliability of the fixing and conveyance of the guide roller in the inspection and adjustment processes.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a guide roller support device of the present invention.

FIG. 2 is a side view showing a guide roller to be supported by the guide roller support device shown in FIG. 1;

FIG. 3 is a plan view showing an example of an inspection device provided with the guide roller support device shown in FIG.

FIG. 4 is a side view showing an example of an inspection device provided with the guide roller support device shown in FIG.

FIG. 5 is a side view of a supply robot that conveys the guide roller to the guide roller support device shown in FIG. 1;

FIG. 6 is a front view of a supply robot that conveys the guide roller to the guide roller support device illustrated in FIG. 1;

[Explanation of symbols]

 2 guide roller 4 collet chuck 6 chuck opening / closing mechanism 8 support shaft 18 gripper 20 first tapered surface 22 opening / closing operation unit 24 second tapered surface 26 drawbar 34 pulley (rotation means)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 57-107159 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16C 13/02 G11B 15/60

Claims (2)

(57) [Claims] 1. An upper end and an intermediate portion of a support shaft are respectively provided with a fin.
A flange is attached and the support between the flanges is
Rollers are rotatably mounted on the spindle and magnetic tape
Inspection of guide rollers for transporting belts to be transported, etc.
A guide roller support device that rotatably supports the guide roller during rotation adjustment such as polishing , wherein the entirety of the support shaft protruding toward the flange side of the intermediate portion is provided.
A chuck for holding the guide roller by inserting and holding a portion, and rotating the guide roller gripped by the chuck together with the chuck in conjunction with a rotating means, and capable of moving back and forth in the center direction of the chuck. And a chuck opening / closing mechanism that closes the chuck when moved in one direction and opens the chuck when moved in the other direction. 2. An upper end and an intermediate portion of the support shaft, respectively.
A flange is attached and the support between the flanges is
Rollers are rotatably mounted on the spindle and magnetic tape
Inspection of guide rollers for transporting belts to be transported, etc.
A guide roller support device that rotatably supports the guide roller during rotation adjustment such as polishing , wherein the entirety of the support shaft protruding toward the flange side of the intermediate portion is provided.
A first part for inserting and holding a gripper, and opening and closing the gripper behind a gripper that grips the support shaft of the guide roller.
A chuck having an opening / closing operation portion forming a tapered surface of: and a drawbar forming a second tapered surface corresponding to the first tapered surface of the opening / closing operation portion of the chuck;
A chuck opening / closing mechanism for bringing the second tapered surface into contact with the first tapered surface and moving the drawbar forward and backward to open and close the chuck.