JP2545224Y2 - Polishing tool for groove - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> This invention relates to a groove polishing tool, and more specifically, a groove for polishing a groove in a state where the interval between a pair of polishing members is expanded by gas pressure. Polishing tool for

<Prior Art> Conventionally, there has been provided a groove polishing tool in which a gap between a pair of polishing members is widened by gas pressure so as to ensure a good press-contact state of the polishing member against the inner surface of the groove (Shikai Kaikai). No. 63-166362 and Japanese Utility Model Application Laid-Open No. 64-12763).

A groove polishing tool disclosed in Japanese Utility Model Laid-Open Publication No. 63-166362
As shown in the figure, the base (7) connected to the vibrating tool (71)
A through hole (73) is formed in 2), and a rubber film (74) is fixed to the through hole (73) so as to be exposed on both side surfaces of the base (72). A pair of grinding wheel support plates (75) are adhered to the opening edge of the rubber film (74), and a small hole (76) formed in the grinding wheel support plate (75) is connected to an air supply source (not shown). ).

Therefore, by supplying air through the small holes (76), the distance between the pair of grinding wheel support plates (75) is increased, and the grinding wheel (77) supported by the grinding wheel support plate (75) is placed on the inner surface of the groove (78). Can be pressed.

Further, in the groove polishing tool disclosed in Japanese Utility Model Laid-Open Publication No. 64-12763, as shown in FIG. 7, one polishing member (83a) is integrated with a bracket (82) connected to a vibration tool (81). It is provided in. A rectangular magnet (85) is provided on the lower surface of the rotating arm (84) rotatably connected to the bracket (82).
The other polishing member (83b) that is attracted to the magnet (85) while wrapping around 5) is provided. An adjusting screw (86) for rotating the rotating arm (84) is provided on the bracket (82). In addition, both polishing members (83
a) Between (83b), a plurality of airbags (87) are arranged along the longitudinal direction, and each airbag (87) is bonded to each polishing member (83a) (83b),
It is connected to the intake and exhaust mechanism (88).

Therefore, by supplying air to the plurality of airbags (87), the distance between the polishing members (83a) (83b) can be increased, and the polishing members (83a) (83b) can be pressed against the inner surface of the groove (89). Further, by pushing the adjusting screw (86), the rotating arm (84) is rotated clockwise, and the upper air bag (87) can be adapted to the tapered groove by increasing the air supply amount. .

<Problem to be Solved by the Invention> The groove polishing tool disclosed in Japanese Utility Model Application Laid-Open No. 63-166362 discloses a method in which a base and a rubber film are fixed, and air is formed in a space formed by a grinding wheel support plate and the rubber film. Is supplied to widen the gap between the grindstone support plates, so if the grindstone support plates are not in a state where they can be separated to the limit, that is, if the groove is narrow, the rubber film will bulge outward, and the polishing operation As a result, there is a problem that the rubber film may be broken by coming into direct contact with the member to be polished. In addition, since the force accompanying the polishing operation is constantly applied to the fixing portion between the base and the rubber film and the bonding portion between the rubber film and the grindstone support plate, there is a problem that these portions are damaged relatively early. is there.

The groove polishing tool disclosed in Japanese Utility Model Laid-Open Publication No. 64-12763 is disadvantageous in that the airbag bulges outward regardless of the distance between the polishing members because the airbag is bonded between the polishing members. Can be prevented. However, since a plurality of airbags are arranged in the longitudinal direction and each airbag is connected to the intake / exhaust mechanism, the minimum width of the grindable groove is restricted by the connection portion, There is a problem that too narrow grooves cannot be polished.

Further, in the groove polishing tool of any of the above configurations,
Since the grindstone support plate or the polishing member follows the movement of the vibrating tool faithfully, when performing the polishing operation using an industrial robot, teach the robot to ensure that the bottom of the groove is polished securely. Becomes practically impossible. As a result, if the grindstone support plate or the polishing member cannot reach the bottom of the groove, polishing residue will occur, and if the grindstone support plate or the polishing member collides with the bottom of the groove, the groove polishing tool will be damaged. Will happen.

Furthermore, in any of the above-mentioned groove polishing tools, the shank holder of the vibrating tool is provided with a degree of freedom of rotation in order to cope with a case in which the groove is inclined with respect to the groove. It becomes impossible to enforce regulations. As a result, since the direction of the grindstone support plate or the polishing member at the time of no load is not constant, there is a problem that it becomes impossible to insert the grindstone support plate or the polishing member into the groove by an industrial robot or the like. .

<Object of the Invention> This invention has been made in view of the above-mentioned problems. In addition to being able to press the polishing member against the inner surface of the groove, it is possible to reliably polish the bottom portion, and the polishing member can be polished at no load. An object of the present invention is to provide a groove polishing tool capable of regulating the direction.

<Means for Solving the Problems> In order to achieve the above object, the groove polishing tool of the present invention can expand a pair of thin plate-shaped polishing members having abrasive particles adhered to the surface. The shank is arranged in an opposed state with an airbag interposed, connected to a vibration force transmitting member via a buffer member, and the vibration force transmitting member is fixed to a vibration tool via a relative angle regulating member. On the other hand, the polishing surface of the polishing member is connected so as to be rotatable in a vertical direction about the tip of the shank.

However, it is preferable that the airbag and the pair of polishing members are bonded.

A transmitting member such as a vibrating force is rotatably connected to a shank fixed to the vibrating tool at a position substantially coincident with the center line of the airbag, and the shank fixed to the vibrating tool and the vibrating force transmitting member It is preferable that a spring as a relative angle regulating member is interposed therebetween.

Further, the vibration force transmitting member has a pair of space regulating members connected to the respective polishing members via the buffer member, and has a space adjusting member for adjusting the space between the space regulating members. Is preferred.

<Operation> In the case of the groove polishing tool having the above-described configuration, a pair of thin plate-like polishing members each having abrasive particles adhered to the surface thereof are arranged in an opposed state with one inflatable airbag interposed therebetween. Therefore, the polishing member can be pressed against the inner surface of the groove only by inflating the airbag, and the inflation and contraction of the airbag can be easily controlled. And, since the pair of polishing members are connected to the vibration force transmitting member via the buffer member, when the operation is controlled by the industrial robot,
Even if the robot teaching is incomplete, the shock between the polishing member and the material to be polished can be absorbed by the buffer member. Therefore, when polishing the inner part of the groove, it is only necessary to perform a little more robot teaching, and it is possible to eliminate the disadvantage that the remaining polishing is caused, and also eliminate the disadvantage that the polishing member is damaged by impact. it can. Also, the vibration force transmitting member is connected to the shank fixed to the vibration tool via the relative angle regulating member so that the polishing surface of the polishing member is rotatable in the vertical direction around the tip of the shank. Therefore, not only can the relative inclination between the side surface of the groove to be polished and the taught polishing member be absorbed, but also the direction of the polishing member when no load is applied can be regulated.

When the airbag and the pair of polishing members are bonded to each other, a negative pressure is applied to the airbag so that the airbag and the polishing member are bonded to each other.
The pair of polishing members can be brought closer to each other, and the operation of inserting the polishing members into the narrow grooves can be simplified.

A transmitting member such as a vibrating force is rotatably connected to a shank fixed to the vibrating tool at a position substantially coincident with the center line of the airbag, and the shank fixed to the vibrating tool and the vibrating force transmitting member When a spring as a relative angle regulating member is interposed between the pair of polishing members, the pair of polishing members continue to be arranged with the center line of the shank fixed to the vibrating tool as the axis of symmetry. Control becomes easy.

Further, the vibration force transmitting member has a pair of space regulating members connected to the respective polishing members via the buffer member, and has a space adjusting member for adjusting the space between the space regulating members. In this case, the gap between the polishing members can be regulated to some extent by the space regulating member, so that the pressing force against the inner surface of the groove of the polishing member can be prevented from becoming too large, the operability of the polishing member can be improved, and good polishing performance can be obtained. Can be demonstrated.

<Example> Hereinafter, an example will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment of the groove polishing tool of the present invention, FIG. 2 is a left side view of the same, and FIG. 3 is a right side view of the same. A pair of polishing members (1), a balloon (2) as an airbag disposed between the pair of polishing members (1), and a vibration force transmitting member that supports the pair of polishing members (1). (3) and a linear spring member (4) as a relative angle regulating member. The vibration force transmitting member (3) is a shank (5) of a vibration tool (not shown).
A base member (31) rotatably connected to the base member (31), and a pair of guide plates (33) supported on the base member (31) via a pair of guide shafts (32) so as to be able to come and go. )
A spacing adjusting screw (34) for regulating a separation limit position of the guide plate (33), a rubber layer (35) as a buffer member integrally provided on an opposite surface of the guide plate (33),
An air pipe support (36) formed at a predetermined position on the base member (31). The linear spring material (4) has one end fixedly wound around the shank (5),
The other end is housed in an engagement recess (37) formed at a predetermined position of the base member (31). The polishing member (1)
Is obtained by electrodepositing abrasive grains on one surface of a rectangular thin steel plate. The balloon (2) has an opening for intake (21)
Are located above the guide plate (33) and the main body is located between the polishing members (1) (see FIG. 4), and the opening (21) is provided in the air pipe supporting portion. It communicates with an air intake / exhaust device (not shown) via an air pipe (22) supported by (36). The vibrating tool is supported by an unillustrated industrial robot.

The operation in the case of polishing the inner surface of the groove using the groove polishing tool having the above configuration is as follows.

By operating the industrial robot, the groove polishing tool is moved so that the pair of polishing members (1) is located inside the groove (6). Then, by operating the intake / exhaust device in this state, air is sent into the balloon (2). The balloon (2) into which the air has been introduced is initially flat as shown in FIG. 4 (A), and the state in which the polishing member (1) is closest is shown in FIGS. 4 (B) and 4 (C). By expanding as shown in (1) and separating the polishing members (1) from each other, the abrasive electrodeposited surface of the polishing member (1) can be brought into contact with the inner surface of the groove (6). Therefore, if the vibrating tool is operated in this state, the polishing member (1) vibrates as shown by the arrow (A) in FIG. 1, so that the inner surface of the groove (6) can be uniformly polished. Of course, since the width of the groove (6) is generally larger than the width of the polishing member (1), the polishing member (1) is moved in the width direction by the industrial robot while operating the vibration tool as described above. The entire area of the groove (6) can be polished by moving to the direction indicated by the arrow (B) in FIG.

In this case, since it is generally difficult to accurately grasp the depth of the groove (6), conventionally, the groove (6) cannot be polished to the inner part of the groove (6), or the polishing member ( 1) was to be damaged. However, in the case of the groove polishing tool having the above-described configuration, since the polishing member (1) is attached to the guide plate (33) via the rubber layer (35), the leading end of the polishing member (1) is used. If the robot operation is controlled so as to reliably hit the bottom of the groove (6), it is possible to prevent the occurrence of unpolished residue, and the impact force between the bottom and the polishing member (1) is absorbed by the rubber layer (35). Therefore, breakage of the polishing member (1) is prevented. As a result, the inner surface of the groove (6) can be polished with high precision over the entire range. When the groove (6) is inclined in a horizontal plane, the base member (31) can rotate around the shank (5), so that the polishing member (1) can be rotated regardless of the inclination. It can be brought into close contact with the inner surface of the groove (6), and high-precision polishing can be achieved. As a result, it is not necessary to perform the robot control according to the inclination, and the robot control can be significantly simplified. After the polishing of the inner surface of the groove (6) is completed, the industrial robot is operated in the removing direction. If the polishing member (1) escapes from the groove (6), the linear spring material (4) is removed. The base member (31) moves back to the reference position by the elastic force of (3). Therefore, when performing the next groove polishing operation, it is not necessary to correct the posture of the polishing member (1) or to perform robot control in consideration of the posture. In the above embodiment, the balloon (2) is simply replaced by the polishing member (1).
However, if the balloon (2) and the polishing member (1) are bonded to each other, the gap between the polishing members (1) can be reduced by applying a negative pressure to the balloon (2). Can be minimized. As a result, the operation of inserting the polishing member (1) into the narrow groove (6) is simplified, and it has been almost impossible to automate the operation of inserting the polishing member into the narrow groove (6). Can be easily automated. Further, if a tapered guide member (61) (see FIG. 5) is adhered to the opening of the groove (6), the insertion operation into the narrower groove (6) can be automated. The present invention is not limited to the above embodiment. For example, it is possible to use a buffer member other than the rubber layer (35), and to replace the linear spring material (4) with a leaf spring. It is possible to use materials and the like, and it is also possible to make various design changes within a range that does not change the gist of the present invention.

<Effects of the Invention> As described above, the first invention not only simplifies the operation of bringing the polishing member into close contact with the inner surface of the groove, but also allows the polishing member and the material to be polished even when the robot teaching is incomplete. When the shock of the above is absorbed by the cushioning member and the inner part of the groove is polished,
By performing the robot teaching a little more, it is possible to eliminate the disadvantage that the remaining polishing is caused and the disadvantage that the polishing member is damaged by an impact. The direction can be regulated, and the specific practical effect that the inner surface can be polished with high precision even in a narrow groove can be obtained.

The second invention has a unique practical effect that a pair of polishing members can be brought closer to each other by applying a negative pressure to the airbag, and the work of inserting the polishing members into the narrow groove can be simplified. Play.

According to the third invention, since a pair of polishing members continue to be arranged with the center line of the shank fixed to the vibrating tool as the axis of symmetry, control of the position, posture and the like of the polishing member is facilitated, and the groove inner surface with high precision is obtained. This has a specific practical effect that polishing can be achieved.

The fourth invention has a unique practical effect that the pressing force of the polishing member against the inner surface of the groove can be prevented from being too large, the operability of the polishing member can be improved, and good polishing performance can be exhibited. Play.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the groove polishing tool of the present invention, FIG. 2 is a left side view of the same, FIG. 3 is a right side view of the same, and FIGS. FIG. 4 (C) is a cross-sectional view taken along the line IV (C) -IV (C) of FIG. 1, and FIG. 5 shows a state where a taper member is attached to the opening of the groove. FIGS. 6 and 7 are schematic views showing a conventional example. (1) a polishing member, (2) a balloon as an airbag,
(3): Vibration force transmitting member, (4): Linear spring material as relative angle regulating member, (5): Shank of vibrating device, (3)
1) Base member, (33) Guide plate, (34) Spacing adjusting screw, (35) Rubber layer as cushioning member

Claims (4)

(57) [Scope of request for utility model registration] 1. A pair of thin plate-like polishing members (1) each having abrasive particles adhered to the surface thereof are arranged in opposition with one inflatable airbag (2) interposed therebetween.
Vibration force transmission member (3) (31) via buffer member (35)
(33), connected to the vibration transmitting member (3) (31)
(33) is perpendicular to the shank (5) fixed to the vibrating tool via the relative angle regulating member (4) with the tip of the shank (5) as the center and the polishing surface of the polishing member (1) perpendicular to the shank (5). A polishing tool for grooves, which is rotatably connected in various directions. 2. An airbag (2) and a pair of polishing members (1).
2. The groove polishing tool according to claim 1, wherein the tool is bonded to the groove. 3. A transmitting member (31) such as a vibrating force is rotatably connected to a shank (5) fixed to a vibrating tool at a position substantially coincident with a center line of the airbag (2).
The utility model registration according to claim 1 or 2, wherein a spring (4) as a relative angle regulating member is interposed between the shank (5) fixed to the vibrating tool and the vibration force transmitting member (31). Polishing tool for grooves according to the item. 4. The vibration force transmitting member has a pair of space regulating members (33) connected to each of the polishing members (1) via a buffer member (35). 4. The groove polishing tool according to any one of claims 1 to 3, further comprising an interval adjusting member (34) for adjusting an interval between the grooves.