JPH0634929Y2 - Polishing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a polishing apparatus which is preferably used when polishing a coated surface such as a car body.

2. Description of the Related Art FIG. 8 is a perspective view of a typical prior art, and a similar prior art is shown in, for example, Japanese Patent Laid-Open No. 61-61761. A conventional polishing apparatus 1 includes a polishing apparatus body 2 having a drive source 3, a drive shaft 6 housed in the body 2, and a mounting plate 4 to which a polishing member 5 such as sandpaper is attached. A drive shaft 6 is provided in the main body 2, one end of the drive shaft 6 is connected to the drive source 3, and a mounting plate 4 is screwed to the other end 6a by a mounting screw (not shown). Drive shaft 6
A bearing (not shown) is attached to the end portion 6a of the drive shaft eccentrically from the center of rotation of the drive shaft 6, and the mounting screw is screwed into the bearing.

The mounting plate 4 is composed of a rectangular plate-shaped member, and is mounted so that the polishing surface is perpendicular to the axis of the drive shaft 6. The surface opposite to the main body 2 (the surface facing the surface to be polished) is polished. The member 5 is detachably attached with an adhesive. Cylindrical protrusions 7 having elasticity, such as rubber, are provided at four corners of the surface of the mounting plate 4 facing the body 2, and the free ends of the protrusions 7 are fixed to the body 2. This prevents the mounting plate 4 from rotating around the axis of the drive shaft 6 when the drive shaft 3 is rotated by the drive source 3. Further, since the drive shaft 6 is rotatably supported by the cam bearing mounted eccentrically from the rotation center of the drive shaft 6, the mounting plate 4 makes a circular motion. By the circular movement of the mounting plate 4, the polishing member 5 attached to the mounting plate 4 polishes the surface to be polished such as the painted surface.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such a prior art, since the mounting plate 4 is fixedly attached to the drive shaft 6 by a plurality of screws, the attachment / detachment work of the mounting plate 4 requires time and labor, and can be quickly mounted. There is a problem in that the mounting plate 4 cannot be replaced and the efficiency of the polishing work is reduced.

SUMMARY OF THE INVENTION An object of the present invention is to provide a polishing apparatus that allows easy and quick replacement of mounting members and improves the efficiency of polishing work.

Means for Solving the Problems The present invention provides a main body, a drive source provided in the main body, and a cam surface that is driven to rotate about a rotation axis by a drive source and has a central axis that is eccentric to the rotation axis. The drive shaft, the follower that comes into contact with the cam surface and is driven to make a circular motion around the rotation axis of the drive shaft, and the base end that is inserted into the outer cylinder made of elastic material are fixed to the main body. And a free end protruding outward from the outer cylinder body
A plate-shaped first base and a first base having a shaft and having a displacement restricting means provided in the main body, a second shaft attached to the follower, and a first insertion hole through which the second shaft is inserted are connected. A first attachment portion is formed, the first base portion has a connecting piece fixed to the first shaft, a second base portion, and a second attachment portion continuous with one longitudinal end of the second base portion, Reverse L-shaped guide pieces facing each other are formed in the base portion to form guide grooves into which the first mounting portions of the connecting pieces are inserted, and the second shaft is inserted into the second mounting portions. The polishing apparatus is characterized in that it includes a mounting member having a second insertion hole and a polishing member attached to the surface of the second mounting portion opposite to the side where each guide piece is formed.

According to the present invention, the drive shaft, which is rotationally driven by the drive source in the main body, is formed with a cam surface having a central axis eccentric with respect to the rotation axis thereof, and a follower abuts on the cam surface. It is driven so as to make a circular motion around the rotation axis of the drive shaft. Displacement regulating means is provided on the main body.
The displacement restricting means has a base end portion that is inserted into an outer cylindrical body made of an elastic material, and a free end portion that projects outward from the outer cylindrical body.
Has an axis. The first shaft is fixed to the first base of the connecting piece, and thus the connecting piece is connected to the main body. A second shaft is attached to the follower, and the second shaft is inserted into a first insertion hole formed in the first base portion. A first mounting portion is formed in series on the first base portion, and the first mounting portion is inserted into the guide groove of the mounting member. The mounting member has a second base portion and a second mounting portion, and the guide groove is formed in the second base portion by the opposite L-shaped guide pieces facing each other. Has a second insertion hole through which the second shaft is inserted.
Further, a polishing member is attached to the surface of the second attachment portion opposite to the side where the guide pieces are formed. Therefore, the attachment member can be attached to the main body with the first attachment portion inserted in the guide groove of the coupling piece and the second shaft inserted in the second insertion hole, and thus the attachment member can be attached to the main body. As described in relation to, it is not necessary to fix using a plurality of screws or the like, the mounting work can be performed easily and quickly, and the first mounting portion of the connecting piece can be inserted into the guide groove. Therefore, the mounting member can be easily positioned with respect to the main body and the connecting piece, and the mounting position of the mounting member with respect to the connecting piece will not be misaligned and the mounting error will not occur.

Embodiment FIG. 1 is a perspective view of a polishing apparatus 10 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof. The polishing apparatus 10 of the present embodiment includes a main body 51 and a long rod-shaped grip 52 connected to the main body 51. The main body 51 has a first main body portion 53 having a substantially right cylindrical shape to which the handle 52 is attached, and a second main body portion 54 integrally formed with the first main body portion 53. First body part
A storage hole 55 that is inserted in the axial direction is formed in the 53, and a pneumatic motor is built in the storage hole 55. The opening on one side of the storage hole 55 is closed by a lid 56 fixed to the first main body portion 53. A mounting member 57, which is a drive shaft, is connected to the pneumatic motor in the housing hole 55, and the mounting member 57 is driven to rotate about its rotation axis. The mounting member 57 has a mounting hole 58 forming a cam surface having an axis deviated from the rotation axis thereof, and a bearing 59, which is a follower, is accommodated in the mounting hole 58. The bearing 59 is formed with a screw hole 60 having an inner thread engraved on the inner peripheral surface.

The second body portion 54 has a storage hole for the first body portion 53.
A storage hole 61 continuous with 55 is formed, and the displacement regulating means 62 is stored in the storage hole 61. The displacement restricting means 62 has a right cylindrical outer cylinder body 63 made of an elastic material such as rubber, and a cylindrical core member 64 having an outer diameter slightly smaller than the inner diameter of the outer cylinder body 63. The core member 64 is made of the same material as the outer cylinder body 63, and its base end portion is fixed to the second main body portion 54. A screw rod 65, which is a first shaft having an outer thread engraved on the outer peripheral surface, is fixed to the free end of the core member 64, and projects outward from the outer cylinder 63. A connecting piece 70 is detachably attached to such a body 51, and an attaching plate that is an attaching member is attached to the connecting piece 70.
71a is installed.

A substantially straight cylindrical cover 72 is attached to the handle 52 connected to the main body 51. The cover 72 is made of rubber or synthetic resin, for example. As shown in FIG. 3, a pipe joint 73 is provided at the free end of the handle 52, and a connection port extending from a pressure source (not shown) is connected to the compressed air in the first main body portion 53. It can be supplied to and driven by a pneumatic motor.
The compressed air supplied from the pipe joint 73 is operated by pressing the operating piece 74 protruding from the outer peripheral surface of the handle 52 in the direction of arrow M in FIG. Exhausted from the pneumatic motor is exhausted from the exhaust port 66. Further, in a state where the operation piece 74 is not pressed in the direction of the arrow M, the compressed air supplied from the pipe joint 73 is cut off, and thus the pneumatic motor in the first main body portion 53 is stopped.

Referring again to FIG. 2, the connecting piece 70 has a base portion 75 that is a flat plate-shaped first base portion and a mounting portion 76 that is a first mounting portion that is continuous with the base portion 75. At the base 75,
Insertion holes 77 and 78 are formed to be inserted in the thickness direction. The screw rod 65 of the displacement regulating means 62 is inserted into the insertion hole 77, the washer 79 is inserted and the nut 80 is screwed, and thus the screw rod is inserted.
A connecting piece 70 is attached to 65. In such a state, the insertion hole 78 communicates with the screw hole 60 of the bearing 59.

In this way, the connecting plate 70 attached to the main body 51 has a mounting plate 71
a is installed. The mounting plate 71a has a base 81 which is a second base.
And a mounting portion 82 that is a second mounting portion that is continuous with one end of the base portion 81 in the longitudinal direction. The base 81 has opposite Ls facing each other.
Character-shaped guide pieces 83, 84 are formed. An insertion hole 85, which is a second insertion hole, is formed at the free end of the mounting portion 82. Therefore, as shown in FIG. 4, with the connecting piece 70 attached to the main body 51, the pair of flanges 86, 87 formed on the attachment portion 76 of the connecting piece 70 are guided by the guide pieces 83, 84. The main body is inserted along the grooves 88, 89, the bolt 91, which is the second shaft on which the washer 90 is externally inserted, is inserted into the insertion hole 85, and the insertion hole 78 of the connecting piece 70 is inserted.
It is screwed into a screw hole 60 formed in the bearing 59 of 51. As a result, the mounting plate 71a is fixed to the main body 51 together with the connecting piece 70. Even if the bolt 91 is loosened, as long as the shaft portion of the bolt 91 is inserted into the insertion hole 85 of the attachment plate 71a, the attachment plate 71a is unlikely to be separated from the connecting piece 70.

FIG. 5 is a sectional view taken along the section line V-V in FIG. An elastic member 92 is fixed to the surface of the base 81 of the mounting plate 71a opposite to the side where the guide pieces 83 and 84 are formed, and a surface member 93 is fixed to the surface of the elastic member 92. A polishing member 94 is replaceably attached to the surface of the surface member 93 using an adhesive or the like. The elastic member 92 is made of, for example, an elastic material such as sponge or rubber, the surface member 93 is made of, for example, synthetic leather, and the polishing member 94 is, for example, sand paper.

In the polishing apparatus 10 described above, since the mounting plate 71a is replaceably mounted on the connecting piece 70, the mounting plate 71a is removed from the connecting piece 70 and another mounting plate 71b shown in FIG. Alternatively, the attachment plate 71c shown in FIG. 7 may be attached to the connecting piece 70. In addition, connecting plates other than the mounting plates 71a to 71c can be used as connecting pieces.
You may attach it to 70.

Therefore, according to the polishing apparatus 10 as described above, the mounting plates 71a to 71c and the mounting plates having other configurations other than the mounting plates can be easily replaced according to the shape of the surface to be polished. The efficiency of the polishing work can be improved, and the processing quality of the surface to be polished can be improved.

EFFECTS OF THE INVENTION According to the present invention, in the state where the first mounting portion of the connecting piece is inserted into the guide groove of the mounting member, the second shaft is inserted into the mounting member so that the second shaft is inserted and mounted on the connecting piece. Since the members are attached, it is possible to easily and quickly perform the attachment / detachment work when exchanging the attachment members, and moreover, it is possible to eliminate mistakes such as displacement of the attachment position of the attachment member of the connecting piece or misdirection, and to ensure accurate and reliable operation. It becomes possible to attach a mounting member to the main body.

[Brief description of drawings]

FIG. 1 is a perspective view of a polishing apparatus 10 according to an embodiment of the present invention, and FIG.
FIG. 4 is an exploded perspective view thereof, FIG. 3 is a perspective view of the vicinity of the pipe joint 73 provided on the handle 52, FIG. 4 is an exploded perspective view showing a state where the mounting plate 71a is detached from the connecting piece 70, and FIG. FIG. 4 is a cross-sectional view taken along the section line VV of FIG. 4, FIG. 6 is a perspective view showing a mounting plate 71b of another embodiment of the present invention, and FIG. 7 is a mounting of yet another embodiment of the present invention. FIG. 8 is a perspective view showing the plate 71c, and FIG. 8 is a perspective view of a typical prior art. 10 ... Polishing device, 51 ... Main body, 57 ... Mounting member, 58 ... Mounting hole,
59 ... Bearing, 62 ... Displacement restricting means, 63 ... Outer cylinder, 64 ... Core member, 65 ... Screw rod, 70 ... Connecting piece, 75, 81 ... Base part, 76, 82 ... Mounting part, 78, 85 ... Insertion hole , 83, 84 ... Guide piece, 86, 87 ... Flange, 88, 89 ... Guide groove, 91 ... Bolt, 94 ... Abrasive member

Claims (1)

[Scope of utility model registration request] 1. A main body, a drive source provided in the main body, a drive shaft rotationally driven by the drive source around a rotation axis, and a cam surface having a central axis eccentric to the rotation axis, and a cam. The follower, which is brought into contact with the surface and is driven to make a circular motion around the rotation axis of the drive shaft, and the base end portion, which is inserted into the outer cylindrical body made of an elastic material, are fixed to the main body, and the free end portion is fixed. First protruding outward from the outer cylinder
A plate-shaped first base portion and a first base portion having a shaft and having a displacement restricting means provided in the main body, a second shaft attached to the follower, and a first insertion hole through which the second shaft is inserted. A first attachment portion is formed, the first base portion has a connecting piece fixed to the first shaft, a second base portion, and a second attachment portion continuous with one longitudinal end portion of the second base portion, Reverse L-shaped guide pieces facing each other are formed in the base portion to form guide grooves into which the first mounting portions of the connecting pieces are inserted, and the second shaft is inserted into the second mounting portions. A polishing device, comprising: a second insertion hole; and a mounting member having a polishing member attached to a surface of the second mounting portion opposite to a side where each guide piece is formed.